/* ============================================================
   ATLAS PSU - main-style.css
   Genetic Algorithm Faculty Workload System
   Palawan State University · College of Information Technology
   Design language unified with IARMS PSU design system.
   ============================================================ */

/* ============================================================
   0. GOOGLE FONTS IMPORT
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&family=DM+Serif+Display:ital@0;1&family=JetBrains+Mono:wght@400;500&display=swap');

/* ============================================================
   1. CSS DESIGN TOKENS
   Rust Orange / Slate Gray / Off-White - ATLAS PSU brand
   ============================================================ */
:root {

  /* Primary - Rust Orange (ATLAS brand #c0440a) */
  --clr-primary-50:  #fff3ee;
  --clr-primary-100: #ffe3d5;
  --clr-primary-200: #ffc4a3;
  --clr-primary-300: #ff9e6e;
  --clr-primary-400: #e8693a;
  --clr-primary-500: #c0440a;
  --clr-primary-600: #9a3608;
  --clr-primary-700: #762806;
  --clr-primary-800: #531b04;
  --clr-primary-900: #361002;

  /* Accent - warm amber */
  --clr-accent-400: #d97706;
  --clr-accent-500: #b45309;
  --clr-accent-100: #fef3c7;

  /* Success / Warning / Danger */
  --clr-success-500: #22c55e;
  --clr-success-100: #dcfce7;
  --clr-warning-500: #f59e0b;
  --clr-warning-100: #fef3c7;
  --clr-danger-500:  #ef4444;
  --clr-danger-100:  #fee2e2;

  /* Slate Gray neutrals */
  --clr-gray-50:  #f8f7f6;
  --clr-gray-100: #f0edea;
  --clr-gray-200: #e2ddd8;
  --clr-gray-300: #cdc6be;
  --clr-gray-400: #9e9389;
  --clr-gray-500: #6b6059;
  --clr-gray-600: #524840;
  --clr-gray-700: #3d342d;
  --clr-gray-800: #2a221c;
  --clr-gray-900: #1a130e;

  /* Semantic surface tokens - Off-White base */
  --bg-page:        #f5f2ef;
  --bg-white:       #fffefb;
  --bg-surface:     #fffefb;
  --bg-surface-2:   #f9f6f2;
  --bg-surface-3:   #f0edea;
  --bg-subtle:      #faf7f5;
  --bg-overlay:     rgba(26, 19, 14, 0.45);

  --border-subtle:  #e8e2db;
  --border:         #d4cbc2;
  --border-default: #d4cbc2;
  --border-dark:    #c0a898;
  --border-strong:  #a89e94;

  --text-primary:   #1a130e;
  --text-secondary: #524840;
  --text-muted:     #9e9389;
  --text-inverse:   #fffefb;
  --text-link:      var(--clr-primary-600);

  /* Brand shorthands (ATLAS compat) */
  --brand:           var(--clr-primary-500);
  --brand-dark:      var(--clr-primary-600);
  --brand-light:     var(--clr-primary-100);

  --nav-bg:         rgba(255, 254, 251, 0.94);
  --nav-border:     rgba(212, 203, 194, 0.7);
  --nav-shadow:     0 1px 12px rgba(26, 19, 14, 0.07);

  --card-bg:        #fffefb;
  --card-shadow:    0 1px 3px rgba(26, 19, 14, 0.06), 0 4px 16px rgba(26, 19, 14, 0.05);
  --card-shadow-lg: 0 4px 6px rgba(26, 19, 14, 0.05), 0 10px 40px rgba(26, 19, 14, 0.09);
  --card-hover-shadow: 0 8px 24px rgba(192, 68, 10, 0.12), 0 2px 8px rgba(26, 19, 14, 0.08);

  --input-bg:           #fffefb;
  --input-border:       #d4cbc2;
  --input-focus-border: var(--clr-primary-500);
  --input-focus-ring:   rgba(192, 68, 10, 0.15);

  /* Elevation shadows */
  --shadow-xs:  0 1px 2px rgba(26, 19, 14, 0.06);
  --shadow-sm:  0 1px 3px rgba(26, 19, 14, 0.08), 0 1px 2px rgba(26, 19, 14, 0.05);
  --shadow-md:  0 4px 12px rgba(26, 19, 14, 0.08), 0 2px 4px rgba(26, 19, 14, 0.05);
  --shadow-lg:  0 10px 32px rgba(26, 19, 14, 0.10), 0 4px 8px rgba(26, 19, 14, 0.06);
  --shadow-xl:  0 20px 60px rgba(26, 19, 14, 0.13);

  /* Typography */
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-sans:    'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono:    'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing scale (4px base) */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;

  /* Border radius */
  --radius-sm:   0.375rem;
  --radius-md:   0.625rem;
  --radius-lg:   0.875rem;
  --radius-xl:   1.25rem;
  --radius-2xl:  1.75rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.12s ease;
  --transition-base: 0.22s ease;
  --transition-slow: 0.4s ease;

  /* Navbar */
  --nav-h:         3.5rem;
  --navbar-height: 3.5rem;
}

/* ============================================================
   2. RESET & BASE
   ============================================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 14px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-page);
  overflow: hidden;
  height: 100vh;
}

img, svg {
  display: block;
  max-width: 100%;
}

button {
  font-family: inherit;
  cursor: pointer;
}

a {
  color: var(--text-link);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--clr-primary-700);
}

ul, ol {
  list-style: none;
}

input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

fieldset {
  border: none;
}

hr {
  border: none;
  border-top: 1px solid var(--border-subtle);
  margin: var(--space-) 0;
}

/* ============================================================
   3. UTILITY CLASSES
   ============================================================ */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.hidden {
  display: none !important;
}

.text-muted     { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }

.mt-16 { margin-top: var(--space-4); }
.mb-24 { margin-bottom: var(--space-6); }
.btn-full { width: 100%; }

/* ============================================================
   4. TYPOGRAPHY SCALE
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: 600;
  line-height: 1.25;
  color: var(--text-primary);
  letter-spacing: -0.015em;
}

h1 { font-size: clamp(1.75rem, 3.5vw, 2.5rem); }
h2 { font-size: clamp(1.25rem, 2vw, 1.625rem); }
h3 { font-size: 1.0625rem; }
h4 { font-size: 0.9375rem; }

p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.65;
}

code, pre {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  background: var(--bg-surface-3);
  border-radius: var(--radius-sm);
}

code {
  padding: 0.125rem 0.375rem;
}

/* Sort arrow (tables) */
.sort-arrow {
  font-size: 0.625rem;
  opacity: 0.4;
  margin-left: var(--space-1);
}

/* ============================================================
   5. TOP NAVBAR
   ============================================================ */
.top-navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-h);
  background: var(--nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--nav-border);
  box-shadow: var(--nav-shadow);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-5);
  gap: var(--space-4);
  transition: background var(--transition-slow), border-color var(--transition-slow);
}

/* Nav left / right */
.nav-left {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  min-width: 0;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

/* Brand */
.nav-brand-wrap {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
  text-decoration: none;
}

.brand {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--clr-primary-600);
  white-space: nowrap;
  letter-spacing: -0.01em;
  flex-shrink: 0;
}

/* Nav menu */
.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  overflow-x: auto;
  scrollbar-width: none;
}
.nav-menu::-webkit-scrollbar { display: none; }

.nav-item {
  padding: 0.3125rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  transition: background var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
  cursor: pointer;
  border: none;
  background: none;
  user-select: none;
  font-family: inherit;
}

.nav-item:hover {
  background: var(--bg-surface-3);
  color: var(--text-primary);
}

.nav-item.active {
  background: var(--clr-primary-50);
  color: var(--clr-primary-600);
  font-weight: 600;
}

/* lp-nav (index.html) — unified with top-navbar */
.lp-nav {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-h);
  background: var(--nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--nav-border);
  box-shadow: var(--nav-shadow);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-5);
  gap: var(--space-4);
  transition: background var(--transition-slow), border-color var(--transition-slow);
}

.lp-nav-left,
.lp-nav-right {
  display: flex;
  align-items: center;
}

.lp-nav-left { gap: var(--space-8); }
.lp-nav-right { gap: var(--space-3); flex-shrink: 0; }

.lp-logo-wrap {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
  text-decoration: none;
}

.lp-brand {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--clr-primary-600);
  white-space: nowrap;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.lp-brand-sub {
  font-size: 0.6875rem;
  color: var(--text-muted);
  font-weight: 400;
  line-height: 1.2;
}

.lp-role-pill {
  border: 1px solid var(--border-default);
  border-radius: var(--radius-full);
  padding: 0.25rem 0.75rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  background: transparent;
  font-family: var(--font-sans);
}

.lp-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  overflow: hidden;
  border: 2px solid var(--border-default);
  flex-shrink: 0;
}

.lp-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Nav search */
.search-box {
  display: flex;
  align-items: center;
  background: var(--bg-surface-3);
  border: 1.5px solid var(--border-subtle);
  border-radius: var(--radius-full);
  overflow: hidden;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.search-box:focus-within {
  border-color: var(--input-focus-border);
  box-shadow: 0 0 0 3px var(--input-focus-ring);
}

.search-box input {
  border: none;
  background: transparent;
  padding: 0.375rem 0.875rem;
  font-size: 0.8125rem;
  color: var(--text-primary);
  width: 200px;
  outline: none;
}

.search-box input::placeholder {
  color: var(--text-muted);
}

/* Profile dropdown */
.nav-item.dropdown {
  position: relative;
  padding: var(--space-1);
  background: none;
  border: none;
}

.profile-pic {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  border: 2px solid var(--border-default);
  cursor: pointer;
  display: block;
  object-fit: cover;
  transition: border-color var(--transition-fast);
}

.profile-pic:hover {
  border-color: var(--clr-primary-400);
}

.nav-item.dropdown .dropdown-content {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  left: auto;
  min-width: 160px;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-2);
  z-index: 2000;
  animation: dropdown-in 0.15s ease;
}

@keyframes dropdown-in {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}

.nav-item.dropdown.open .dropdown-content { display: block; }

.nav-item.dropdown .dropdown-content div,
.nav-item.dropdown .dropdown-content a {
  display: block;
  width: 100%;
  text-align: left;
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast), color var(--transition-fast);
  text-decoration: none;
  cursor: pointer;
}

.nav-item.dropdown .dropdown-content div:hover,
.nav-item.dropdown .dropdown-content a:hover {
  background: var(--bg-surface-3);
  color: var(--text-primary);
}

/* ============================================================
   6. PANELS LAYOUT
   ============================================================ */
.panels-wrapper {
  height: calc(100vh - var(--nav-h));
  margin-top: var(--nav-h);
  overflow: hidden;
  padding: var(--space-5) var(--space-5) 0;
}

.panels-container {
  height: 100%;
  position: relative;
}

.panel {
  display: none;
  width: 100%;
  height: 100%;
  overflow-y: auto;
  overflow-x: hidden;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  padding: var(--space-8) var(--space-10);
  box-shadow: var(--card-shadow);
  position: relative;
  animation: panel-fade-in 0.25s ease;
}

@keyframes panel-fade-in {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.panel.active {
  display: block;
}

.panel::-webkit-scrollbar { width: 6px; }
.panel::-webkit-scrollbar-track { background: transparent; }
.panel::-webkit-scrollbar-thumb {
  background: var(--border-default);
  border-radius: var(--radius-full);
}
.panel::-webkit-scrollbar-thumb:hover {
  background: var(--border-strong);
}

/* ============================================================
   7. PAGE HEADER & SECTION HEADINGS
   ============================================================ */
.page-header {
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-5);
  border-bottom: 2px solid var(--border-subtle);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.page-header > div:first-child,
.page-header > h2:only-child,
.page-header > h2:first-child {
  flex: 1;
  min-width: 0;
}

.page-header h2,
.page-header > div h2 {
  margin-bottom: var(--space-2);
  font-size: clamp(1.25rem, 2vw, 1.625rem);
}

.page-header p,
.page-header > div p {
  max-width: 680px;
  color: var(--text-secondary);
}

.section-heading {
  margin: var(--space-6) 0 var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  font-family: var(--font-sans);
}

.section-divider {
  height: 1px;
  background: var(--border-subtle);
  margin: var(--space-8) 0;
}

/* ============================================================
   8. BUTTONS
   ============================================================ */
button,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.5rem 1.125rem;
  font-size: 0.875rem;
  font-weight: 500;
  font-family: var(--font-sans);
  border-radius: var(--radius-md);
  border: 1.5px solid transparent;
  transition:
    background-color var(--transition-fast),
    color var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    transform var(--transition-fast),
    opacity var(--transition-fast);
  cursor: pointer;
  white-space: nowrap;
  user-select: none;
  text-decoration: none;
  line-height: 1.4;
  /* Default to primary */
  background: var(--clr-primary-500);
  color: #fff;
}

button:hover,
.btn:hover {
  background: var(--clr-primary-600);
}

button:active,
.btn:active {
  transform: scale(0.97);
}

button:disabled,
.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}

button:focus-visible,
.btn:focus-visible {
  outline: 2.5px solid var(--clr-primary-400);
  outline-offset: 2px;
}

/* Secondary */
.btn-secondary {
  background: var(--bg-surface);
  color: var(--text-primary);
  border-color: var(--border-default);
}
.btn-secondary:hover {
  background: var(--bg-surface-3);
  border-color: var(--border-strong);
  color: var(--text-primary);
}

/* Remove / Delete */
.btn-remove,
.btn-delete {
  background: var(--bg-surface);
  color: #dc2626;
  border-color: #fca5a5;
  font-size: 0.8125rem;
  padding: 0.3rem 0.875rem;
}
.btn-remove:hover,
.btn-delete:hover {
  background: var(--clr-danger-100);
  border-color: var(--clr-danger-500);
  color: #991b1b;
}

/* Edit faculty */
.btn-edit-faculty {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0.3rem 0.875rem;
  font-size: 0.8rem;
  font-weight: 600;
  font-family: var(--font-sans);
  background: var(--clr-primary-500);
  color: #fff;
  border: 1.5px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition-fast), transform var(--transition-fast);
  white-space: nowrap;
}
.btn-edit-faculty:hover {
  background: var(--clr-primary-600);
  transform: translateY(-1px);
}

/* ============================================================
   9. INPUTS & SELECTS & FORMS
   ============================================================ */
input[type="text"],
input[type="number"],
input[type="password"],
select,
textarea {
  padding: 0.5625rem 0.875rem;
  font-size: 0.875rem;
  font-family: var(--font-sans);
  border: 1.5px solid var(--input-border);
  border-radius: var(--radius-md);
  background: var(--input-bg);
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  width: 100%;
}

input[type="text"]::placeholder,
input[type="number"]::placeholder,
textarea::placeholder {
  color: var(--text-muted);
}

input[type="text"]:focus,
input[type="number"]:focus,
input[type="password"]:focus,
select:focus,
textarea:focus {
  border-color: var(--input-focus-border);
  box-shadow: 0 0 0 3px var(--input-focus-ring);
}

input[readonly] {
  background: var(--bg-surface-2);
  color: var(--text-secondary);
  cursor: default;
}

/* Checkbox */
input[type="checkbox"] {
  width: auto;
  cursor: pointer;
  accent-color: var(--clr-primary-500);
}

/* ============================================================
   10. TABLES (generic)
   ============================================================ */
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

thead {
  background: var(--bg-surface-2);
}

thead th {
  padding: 0.625rem 0.875rem;
  text-align: left;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  white-space: nowrap;
  border-bottom: 1px solid var(--border-default);
}

thead th[data-key] { cursor: pointer; user-select: none; }
thead th[data-key]:hover {
  background: var(--clr-primary-50);
  color: var(--clr-primary-600);
}

tbody tr {
  border-bottom: 1px solid var(--border-subtle);
  transition: background var(--transition-fast);
}

tbody tr:last-child { border-bottom: none; }

tbody tr:hover { background: var(--bg-surface-2); }

td {
  padding: 0.5625rem 0.875rem;
  color: var(--text-primary);
  vertical-align: middle;
}

/* Table wrapper */
.table-wrapper,
.faculty-scroll-wrap {
  overflow-x: auto;
  overflow-y: visible;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  background: var(--bg-surface);
  box-shadow: var(--card-shadow);
}

/* ============================================================
   11. BADGES
   ============================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0.2rem 0.65rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  letter-spacing: 0.01em;
  background: var(--clr-primary-50);
  color: var(--clr-primary-600);
  border: 1px solid rgba(192, 68, 10, 0.2);
}

/* Status badges */
.status-badge,
.units-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.2rem 0.625rem;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.units-ok     { background: var(--clr-success-100); color: #065f46; }
.units-max    { background: var(--clr-warning-100); color: #92400e; }
.units-over   { background: var(--clr-danger-100);  color: #991b1b; }

/* ============================================================
   12. DASHBOARD - STAT CARDS
   ============================================================ */
.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.stat-card {
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-6);
  box-shadow: var(--card-shadow);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
  border-left: 3px solid var(--border-default);
}

.stat-card:first-child { border-left-color: var(--clr-primary-400); }
.stat-card:nth-child(2) { border-left-color: var(--clr-danger-500); }
.stat-card:nth-child(3) { border-left-color: var(--clr-success-500); }

.stat-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.stat-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: var(--space-2);
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: var(--space-1);
  letter-spacing: -0.02em;
}

.stat-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ============================================================
   13. DASHBOARD CHART CARD
   ============================================================ */
.dashboard-chart-card {
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--card-shadow);
  transition: box-shadow var(--transition-base);
}

.dashboard-chart-card:hover {
  box-shadow: var(--shadow-md);
}

.dashboard-chart-card h3 {
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--border-subtle);
}

/* When h3 is inside .dashboard-card-header, parent handles the border */
.dashboard-card-header h3 {
  margin-bottom: var(--space-1);
  padding-bottom: 0;
  border-bottom: none;
}

.chart-canvas-wrap {
  position: relative;
  height: 300px;
}

/* ============================================================
   14. FACULTY ASSIGNMENTS SUMMARY
   ============================================================ */
.faculty-assignments-container {
  min-height: 80px;
}

.fac-assign-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-3);
  padding: var(--space-1) 0;
}

.fac-assign-card {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  background: var(--bg-surface-2);
  transition: box-shadow var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.fac-assign-card:hover {
  box-shadow: var(--shadow-sm);
  border-color: var(--clr-primary-200);
  transform: translateY(-1px);
}

.fac-assign-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.fac-assign-avatar,
.faculty-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: var(--radius-full);
  background: var(--clr-primary-100);
  color: var(--clr-primary-700);
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

.fac-assign-name {
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--text-primary);
  flex: 1;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.fac-assign-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}

.subject-chip {
  display: inline-block;
  padding: 0.175rem 0.625rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-secondary);
  white-space: nowrap;
  transition: border-color var(--transition-fast);
}

.subject-chip:hover {
  border-color: var(--clr-primary-300);
  color: var(--clr-primary-600);
}

.empty-state-msg {
  color: var(--text-muted);
  font-size: 0.875rem;
  font-style: italic;
  padding: var(--space-4) 0;
  text-align: center;
}

/* ============================================================
   15. WORKLOAD PANEL
   ============================================================ */
.workload-grid {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: var(--space-5);
  align-items: start;
}

.workload-controls-card {
  background: var(--bg-surface-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  text-align: center;
  position: sticky;
  top: var(--space-4);
  box-shadow: var(--card-shadow);
}

.ga-image {
  width: 80px;
  border-radius: var(--radius-lg);
  margin: 0 auto var(--space-3);
}

.subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: var(--space-4);
}

/* Advanced settings */
.advanced-settings {
  margin-top: var(--space-4);
  text-align: left;
}

.advanced-settings summary {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--clr-primary-600);
  cursor: pointer;
  padding: var(--space-2) 0;
  outline: none;
  list-style: none;
  transition: color var(--transition-fast);
}

.advanced-settings summary::-webkit-details-marker { display: none; }
.advanced-settings summary::before { content: '▶ '; font-size: 0.625rem; }
.advanced-settings[open] summary::before { content: '▼ '; }
.advanced-settings summary:hover { color: var(--clr-primary-700); }

.settings-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: var(--space-3);
}

.settings-body label {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.settings-body input {
  padding: 0.375rem 0.625rem;
}

.workload-result-card {
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--card-shadow);
  min-height: 300px;
  transition: box-shadow var(--transition-base);
}

.workload-result-card:hover {
  box-shadow: var(--shadow-md);
}

.workload-result-card h3 {
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--border-subtle);
}

/* ============================================================
   16. GA LOADING STATE
   ============================================================ */
.ga-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-5);
  padding: var(--space-8) 0;
}

.ga-loading.hidden { display: none; }

.loader-row {
  display: flex;
  align-items: center;
  gap: var(--space-10);
}

.loader-box {
  text-align: center;
}

.loader-box p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: var(--space-2);
}

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--border-default);
  border-top-color: var(--clr-primary-500);
  border-radius: var(--radius-full);
  animation: spin 0.8s linear infinite;
  margin: 0 auto;
}

@keyframes spin { to { transform: rotate(360deg); } }

.mini-chart-wrapper {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background: var(--bg-surface-2);
  overflow: hidden;
}

#gaProgressContainer {
  width: 100%;
  max-width: 420px;
}

#gaProgressBar {
  height: 6px;
  background: var(--border-subtle);
  border-radius: var(--radius-full);
  overflow: hidden;
}

#gaProgressBar .fill {
  height: 100%;
  width: 0%;
  transition: width 0.2s linear, background-color 0.2s linear;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, var(--clr-primary-500), var(--clr-primary-400));
}

/* GA Schedule Table row colors */
#gaScheduleTable tbody tr[data-day="Mon"] { background: #fffbeb; }
#gaScheduleTable tbody tr[data-day="Tue"] { background: #f5f3ff; }
#gaScheduleTable tbody tr[data-day="Wed"] { background: #f0fdf4; }
#gaScheduleTable tbody tr[data-day="Thu"] { background: #fff7ed; }
#gaScheduleTable tbody tr[data-day="Fri"] { background: #eff6ff; }
#gaScheduleTable tbody tr[data-day="Sat"] { background: #fdf4ff; }
#gaScheduleTable tbody tr:hover { filter: brightness(0.97); }

/* ============================================================
   17. FACULTY TABLE
   ============================================================ */
#facultyInputTable {
  min-width: 900px;
  border-collapse: collapse;
}

#facultyInputTable thead th {
  position: sticky;
  top: 0;
  z-index: 2;
  background: var(--bg-surface-2);
}

#facultyInputTable td { vertical-align: middle; }

/* Column widths */
#facultyInputTable th:nth-child(1),
#facultyInputTable td:nth-child(1) { width: 160px; }
#facultyInputTable th:nth-child(2),
#facultyInputTable td:nth-child(2) { min-width: 240px; }
#facultyInputTable th:nth-child(3),
#facultyInputTable td:nth-child(3) { width: 100px; }
#facultyInputTable th:nth-child(4),
#facultyInputTable td:nth-child(4) { min-width: 340px; }
#facultyInputTable th:nth-child(5),
#facultyInputTable td:nth-child(5) { width: 90px; }

/* Availability column header layout */
.avail-th {
  vertical-align: top !important;
  padding-bottom: 6px !important;
}

.avail-th-label {
  display: block;
  margin-bottom: 6px;
}

/* Select-All buttons row - same 6-column grid as avail-checkboxes */
.avail-select-all-row {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 4px;
  min-width: 300px;
}

.btn-select-day {
  padding: 0.18rem 0;
  font-size: 0.7rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--clr-primary-300, #c4a882);
  background: var(--clr-primary-100, #f5ebe0);
  color: var(--clr-primary-800, #6b3a00);
  cursor: pointer;
  white-space: nowrap;
  text-align: center;
  line-height: 1.6;
  transition: background var(--transition-fast), border-color var(--transition-fast), transform 80ms;
  user-select: none;
}

.btn-select-day:hover {
  background: var(--clr-primary-200, #e8d5bc);
  border-color: var(--clr-primary-500, #a0622a);
}

.btn-select-day:active {
  transform: scale(0.95);
}

.btn-select-day.all-selected {
  background: var(--clr-primary-500, #a0622a);
  color: #fff;
  border-color: var(--clr-primary-600, #7d4a1e);
}

/* Availability checkboxes - same 6-column grid as the header buttons */
.avail-checkboxes {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 4px;
  min-width: 300px;
}

.avail-checkboxes label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  color: var(--text-primary);
  padding: 0.2rem 0.25rem;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
  white-space: nowrap;
}

.avail-checkboxes label:hover {
  background: var(--clr-primary-50);
}

.avail-checkboxes input[type="checkbox"] {
  width: auto;
  cursor: pointer;
}

/* ============================================================
   18. SPECIALIZATION MULTI-SELECT DROPDOWN
   Fixed positioning so it escapes table/panel clipping
   ============================================================ */
.multi-select-dropdown {
  position: relative;
  width: 100%;
}

.dropdown-btn {
  padding: 0.5rem 0.875rem;
  border: 1.5px solid var(--input-border);
  border-radius: var(--radius-md);
  background: var(--input-bg);
  font-size: 0.8125rem;
  font-family: var(--font-sans);
  color: var(--text-primary);
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
  user-select: none;
  text-align: left;
  width: 100%;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.dropdown-btn:hover {
  border-color: var(--clr-primary-400);
}

.dropdown-btn:focus {
  outline: none;
  border-color: var(--input-focus-border);
  box-shadow: 0 0 0 3px var(--input-focus-ring);
}

/* Fixed-position dropdown panel (escapes all parent clipping) */
.dropdown-content {
  display: none;
  position: fixed;
  width: 300px;
  max-height: 260px;
  overflow-y: auto;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  z-index: 9999;
  padding: var(--space-2) 0 0;
}

.dropdown-content::-webkit-scrollbar { width: 5px; }
.dropdown-content::-webkit-scrollbar-thumb {
  background: var(--border-default);
  border-radius: var(--radius-full);
}

.multi-select-dropdown.open .dropdown-content {
  display: flex;
  flex-direction: column;
}

.dropdown-content label {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.4375rem 0.875rem;
  font-size: 0.8125rem;
  font-family: var(--font-sans);
  cursor: pointer;
  color: var(--text-primary);
  flex-shrink: 0;
  transition: background var(--transition-fast);
}

.dropdown-content label:hover {
  background: var(--clr-primary-50);
  color: var(--clr-primary-700);
}

.dropdown-content label input[type="checkbox"] {
  width: auto;
  cursor: pointer;
  flex-shrink: 0;
}

.dropdown-ok-btn {
  position: sticky;
  bottom: 0;
  width: 100%;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  padding: 0.5rem 0.875rem;
  font-size: 0.8125rem;
  font-family: var(--font-sans);
  border-top: 1px solid var(--border-subtle);
  background: var(--clr-primary-500);
  color: #fff;
  cursor: pointer;
  flex-shrink: 0;
  margin-top: auto;
  transition: background var(--transition-fast);
}

.dropdown-ok-btn:hover {
  background: var(--clr-primary-600);
}

/* ============================================================
   19. SUBJECTS TABLE
   ============================================================ */
#subjectsTable { min-width: 800px; }

#subjectsTable input[type="number"],
#subjectsTable input[type="text"],
#subjectsTable select {
  padding: 0.375rem 0.625rem;
  font-size: 0.8125rem;
}

#subjectsContainer {
  margin-top: var(--space-6);
}

#subjectsContainer h3 {
  margin-bottom: var(--space-2);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

#subjectsContainer table {
  margin-bottom: var(--space-6);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--card-shadow);
}

/* ============================================================
   20. REPORTS PANEL
   ============================================================ */
.reports-charts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  margin-bottom: var(--space-8);
}

.chart-card {
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--card-shadow);
  transition: box-shadow var(--transition-base);
}

.chart-card:hover {
  box-shadow: var(--shadow-md);
}

.chart-card h3 {
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--border-subtle);
}

.chart-card .chart-canvas-wrap { height: 260px; }

.export-buttons {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-5);
  margin-bottom: var(--space-2);
}

/* ============================================================
   21. REPORTS SUMMARY — card-per-faculty layout
   ============================================================ */

/* Outer wrapper replaces the old flat table */
.summary-faculty-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-top: var(--space-2);
}

/* One card per faculty member */
.summary-faculty-card {
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  transition: box-shadow var(--transition-base);
}
.summary-faculty-card:hover { box-shadow: var(--shadow-md); }

/* Card header: avatar + name/count + units badge + edit button */
.summary-fac-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  background: var(--bg-surface-2);
  border-bottom: 1px solid var(--border-subtle);
}

.summary-fac-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--clr-primary-100);
  color: var(--clr-primary-700);
  font-size: 0.875rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  letter-spacing: -0.01em;
}

.summary-fac-info {
  flex: 1;
  min-width: 0;
}

.summary-fac-name {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.summary-fac-count {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 1px;
}

.summary-fac-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}

/* Assignments table inside card */
.summary-assignments-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.845rem;
  table-layout: fixed;
}

.summary-assignments-table col.col-subject  { width: auto; }
.summary-assignments-table col.col-type     { width: 140px; }
.summary-assignments-table col.col-schedule { width: 220px; }
.summary-assignments-table col.col-room     { width: 90px; }

.summary-assignments-table thead th {
  padding: 0.5rem 1rem;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  background: var(--bg-subtle);
  border-bottom: 1px solid var(--border-subtle);
  text-align: left;
}

.summary-assignments-table thead th:not(:first-child) { text-align: center; }
.summary-assignments-table tbody td:not(:first-child) { text-align: center; }

.summary-assignments-table tbody td {
  padding: 0.625rem 1rem;
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: middle;
}

.summary-assignments-table tbody tr:last-child td { border-bottom: none; }

.summary-assignments-table tbody tr:hover { background: var(--bg-surface-2); }

.summary-subj-name {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.85rem;
}

.summary-slot-room {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
  margin-top: 3px;
}

.summary-td-right {
  text-align: right;
}

.summary-right-group {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-2);
  flex-wrap: wrap;
}
/* Legacy compat - hidden but don't break old table if still rendered */
.faculty-name-cell { font-weight: 600; vertical-align: top !important; padding-top: var(--space-4) !important; white-space: nowrap; }
.faculty-name-inner { display: flex; align-items: center; gap: var(--space-2); }
.subject-slot-cell { padding: 0.4375rem 0.875rem; }
.subj-name-text { font-size: 0.875rem; color: var(--text-primary); }
.total-units-cell { text-align: center; vertical-align: top !important; padding-top: var(--space-3) !important; }
.actions-cell { vertical-align: top !important; padding-top: var(--space-3) !important; white-space: nowrap; }
.summary-row:first-of-type td { border-top: 2px solid var(--border-default); }

/* ============================================================
   22. SLOT BADGES (day-colored pills)
   ============================================================ */
.slot-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.175rem 0.625rem;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-left: var(--space-2);
  white-space: nowrap;
  vertical-align: middle;
}

.slot-Mon { background: #fef3c7; color: #92400e; }
.slot-Tue { background: #ede9fe; color: #5b21b6; }
.slot-Wed { background: #d1fae5; color: #065f46; }
.slot-Thu { background: #ffedd5; color: #9a3412; }
.slot-Fri { background: #dbeafe; color: #1e40af; }
.slot-Sat { background: #fce7f3; color: #831843; }

/* ============================================================
   23. FACULTY TIMETABLE
   ============================================================ */
.timetable-outer {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--card-shadow);
}

.timetable-scroll {
  min-width: 700px;
}

.timetable-grid {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
}

.timetable-grid thead th {
  padding: 0.5rem 0.625rem;
  font-size: 0.75rem;
  text-align: center;
  background: var(--bg-surface-2);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.tt-time-col { width: 70px; }
.tt-day-col  { width: calc((100% - 70px) / 6); }

.tt-hd-Mon { color: #92400e; }
.tt-hd-Tue { color: #5b21b6; }
.tt-hd-Wed { color: #065f46; }
.tt-hd-Thu { color: #9a3412; }
.tt-hd-Fri { color: #1e40af; }
.tt-hd-Sat { color: #831843; }

.tt-time-label {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-muted);
  text-align: center;
  padding: 0.375rem var(--space-1);
  background: var(--bg-surface-2);
  border-bottom: 1px solid var(--border-subtle);
  white-space: nowrap;
}

.tt-cell {
  padding: var(--space-1);
  vertical-align: top;
  border: 1px solid var(--border-subtle);
  min-height: 50px;
}

.tt-empty  { background: var(--bg-page); }
.tt-filled { background: var(--bg-surface); }

.tt-bg-Mon { background: #fffbeb; }
.tt-bg-Tue { background: #f5f3ff; }
.tt-bg-Wed { background: #f0fdf4; }
.tt-bg-Thu { background: #fff7ed; }
.tt-bg-Fri { background: #eff6ff; }
.tt-bg-Sat { background: #fdf4ff; }

.tt-entry {
  margin-bottom: var(--space-1);
  border-radius: var(--radius-sm);
  padding: 0.25rem 0.5rem;
  background: rgba(255, 255, 255, 0.88);
  border-left: 2.5px solid var(--clr-primary-500);
  font-size: 0.7rem;
  line-height: 1.4;
  box-shadow: var(--shadow-xs);
}

.tt-faculty-tag {
  font-weight: 700;
  color: var(--clr-primary-600);
  font-size: 0.68rem;
}

.tt-subject-tag {
  color: var(--text-primary);
  font-size: 0.68rem;
}

/* ============================================================
   24. EDIT MODAL — expanded for full faculty editing
   ============================================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg-overlay);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 20000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal-card {
  background: var(--bg-surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border-subtle);
  width: 100%;
  max-width: 680px;
  max-height: 90vh;
  margin: 0 var(--space-5);
  transform: translateY(-12px) scale(0.98);
  transition:
    transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1),
    opacity 0.18s ease;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.modal-overlay.open .modal-card {
  transform: translateY(0) scale(1);
}

.modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6) var(--space-4);
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-surface-2);
  flex-shrink: 0;
}

.modal-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--clr-primary-600);
  margin-bottom: var(--space-1);
}

.modal-header h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  margin: 0;
}

.modal-close-btn {
  background: none;
  border: none;
  font-size: 1.375rem;
  line-height: 1;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.125rem 0.375rem;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast), color var(--transition-fast);
  flex-shrink: 0;
}

.modal-close-btn:hover {
  background: var(--bg-surface-3);
  color: var(--text-primary);
}

.modal-body {
  padding: var(--space-5) var(--space-6);
  overflow-y: auto;
  flex: 1;
}

.modal-form-group {
  margin-bottom: var(--space-4);
}

.modal-form-group label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.modal-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.modal-input-wrap input[type="number"] {
  flex: 1;
  padding: 0.5625rem 2.75rem 0.5625rem 0.875rem;
  font-size: 1.125rem;
  font-weight: 600;
  border: 2px solid var(--input-border);
  border-radius: var(--radius-lg);
  background: var(--input-bg);
  color: var(--text-primary);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
  width: 100%;
}

.modal-input-wrap input[type="number"]:focus {
  border-color: var(--clr-primary-500);
  box-shadow: 0 0 0 3px var(--input-focus-ring);
}

.modal-input-suffix {
  position: absolute;
  right: 0.875rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  pointer-events: none;
}

.modal-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: var(--space-2);
  line-height: 1.55;
}

.modal-info-strip {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--clr-primary-50);
  border: 1px solid rgba(192, 68, 10, 0.18);
  border-radius: var(--radius-md);
  padding: 0.625rem 0.875rem;
  font-size: 0.8rem;
  color: var(--clr-primary-700);
  font-weight: 500;
}

.modal-info-dot {
  width: 7px;
  height: 7px;
  border-radius: var(--radius-full);
  background: var(--clr-primary-500);
  flex-shrink: 0;
}

.modal-footer {
  display: flex;
  gap: var(--space-3);
  justify-content: flex-end;
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-surface-2);
  flex-shrink: 0;
}

.modal-footer button {
  min-width: 100px;
  padding: 0.5625rem 1.25rem;
  font-size: 0.875rem;
}

/* Modal section divider */
.modal-section-divider {
  border: none;
  border-top: 1px solid var(--border-subtle);
  margin: var(--space-5) 0 var(--space-4);
}

.modal-section-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: var(--space-3);
}

/* Assignment editor rows inside modal */
.modal-assignment-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  max-height: 280px;
  overflow-y: auto;
  padding-right: 2px;
}

.modal-assignment-list::-webkit-scrollbar { width: 4px; }
.modal-assignment-list::-webkit-scrollbar-thumb { background: var(--border-default); border-radius: 4px; }

.modal-assign-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr auto;
  gap: var(--space-2);
  align-items: center;
  background: var(--bg-surface-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-3);
}

.modal-assign-row select,
.modal-assign-row input[type="text"] {
  width: 100%;
  padding: 0.375rem 0.625rem;
  font-size: 0.8125rem;
  border: 1.5px solid var(--input-border);
  border-radius: var(--radius-sm);
  background: var(--input-bg);
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition-fast);
}

.modal-assign-row select:focus,
.modal-assign-row input[type="text"]:focus {
  border-color: var(--clr-primary-500);
}

.modal-assign-delete {
  background: none;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  cursor: pointer;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
  flex-shrink: 0;
}

.modal-assign-delete:hover {
  background: var(--clr-danger-100);
  color: var(--clr-danger-500);
  border-color: var(--clr-danger-500);
}

.modal-add-assignment-btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-3);
  padding: 0.4rem 0.875rem;
  font-size: 0.8rem;
  font-weight: 600;
  background: none;
  border: 1.5px dashed var(--border-default);
  border-radius: var(--radius-md);
  color: var(--text-muted);
  cursor: pointer;
  width: 100%;
  justify-content: center;
  transition: border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
}

.modal-add-assignment-btn:hover {
  border-color: var(--clr-primary-400);
  color: var(--clr-primary-600);
  background: var(--clr-primary-50);
}

/* Two-col grid for units + modal inline fields */
.modal-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

@media (max-width: 560px) {
  .modal-assign-row { grid-template-columns: 1fr 1fr; grid-template-rows: auto auto; }
  .modal-assign-delete { grid-column: 2; grid-row: 2; justify-self: end; }
  .modal-grid-2 { grid-template-columns: 1fr; }
  .modal-card { max-width: calc(100vw - 2rem); }
}

/* ============================================================
   25. TOAST NOTIFICATION
   ============================================================ */
.toast-notif {
  position: fixed;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%) translateY(16px);
  background: var(--clr-gray-900);
  color: var(--text-inverse);
  padding: 0.625rem 1.375rem;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 500;
  font-family: var(--font-sans);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 30000;
  white-space: nowrap;
}

.toast-notif.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ============================================================
   26. FAIRNESS REPORT
   ============================================================ */
.fairness-report-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}

.fairness-card {
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-5) var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  box-shadow: var(--card-shadow);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.fairness-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.fairness-score-card {
  border-left: 3.5px solid var(--clr-primary-500);
}

.fairness-card-label {
  font-size: 0.725rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-muted);
}

.fairness-card-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.fairness-card-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.fairness-score-good  { color: #16a34a; }
.fairness-score-ok    { color: #d97706; }
.fairness-score-poor  { color: #dc2626; }

/* Per-faculty match table */
.fairness-per-faculty-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  margin-top: var(--space-1);
}

.fairness-per-faculty-table th {
  text-align: left;
  padding: 0.4375rem 0.875rem;
  background: var(--bg-surface-2);
  border-bottom: 1px solid var(--border-default);
  font-weight: 700;
  color: var(--text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.fairness-per-faculty-table td {
  padding: 0.4375rem 0.875rem;
  border-bottom: 1px solid var(--border-subtle);
}

.match-yes     { color: #16a34a; font-weight: 700; }
.match-partial { color: #d97706; font-weight: 700; }
.match-no      { color: #dc2626; font-weight: 700; }

/* CHED constraint note */
.ched-note {
  font-size: 0.8rem;
  color: var(--text-secondary);
  background: var(--bg-surface-2);
  border-left: 3px solid var(--clr-primary-400);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.875rem;
  margin-top: var(--space-3);
  line-height: 1.6;
}

/* ============================================================
   27. FOCUS STATES (Accessibility)
   ============================================================ */
:focus-visible {
  outline: 2.5px solid var(--clr-primary-400);
  outline-offset: 2px;
  border-radius: 2px;
}

button:focus-visible,
a:focus-visible {
  outline: 2.5px solid var(--clr-primary-400);
  outline-offset: 3px;
}

/* ============================================================
   28. SCROLLBAR (global - subtle)
   ============================================================ */
::-webkit-scrollbar        { width: 8px; height: 8px; }
::-webkit-scrollbar-track  { background: transparent; }
::-webkit-scrollbar-thumb  {
  background: var(--border-default);
  border-radius: var(--radius-full);
  border: 2px solid transparent;
  background-clip: padding-box;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--border-strong);
  background-clip: padding-box;
}

/* ============================================================
   29. LANDING PAGE (index.html)
   ============================================================ */
body.page-landing {
  overflow: auto;
  height: auto;
  background: var(--bg-page);
}

body.page-login {
  overflow: auto;
  min-height: 100vh;
  height: auto;
  background: var(--bg-page);
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Landing nav */
.landing-nav {
  background: var(--nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--nav-border);
  box-shadow: var(--nav-shadow);
  padding: 0 var(--space-10);
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 1000;
}

.nav-brand {
  font-size: 1rem;
  font-weight: 700;
  color: var(--clr-primary-600);
  letter-spacing: -0.01em;
  font-family: var(--font-sans);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.nav-links a {
  padding: 0.375rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.nav-links a:hover {
  background: var(--bg-surface-3);
  color: var(--text-primary);
}

.nav-links a.btn-nav-primary {
  background: var(--clr-primary-500);
  color: #fff;
  border: 1.5px solid var(--clr-primary-500);
  box-shadow: 0 1px 4px rgba(192, 68, 10, 0.25);
}

.nav-links a.btn-nav-primary:hover {
  background: var(--clr-primary-600);
  border-color: var(--clr-primary-600);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(192, 68, 10, 0.30);
}

/* Hero */
.hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-20) var(--space-6) var(--space-16);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 400;
  color: var(--text-primary);
  letter-spacing: -0.025em;
  line-height: 1.15;
  max-width: 720px;
  margin-bottom: var(--space-5);
}

.hero h1 span { color: var(--clr-primary-500); }

.hero > p {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  max-width: 540px;
  line-height: 1.75;
  margin-bottom: var(--space-10);
}

.hero-buttons {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  justify-content: center;
}

.btn-primary {
  background: var(--clr-primary-500);
  color: #fff;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-lg);
  font-size: 0.9375rem;
  font-weight: 600;
  font-family: var(--font-sans);
  text-decoration: none;
  border: 1.5px solid var(--clr-primary-500);
  cursor: pointer;
  transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  box-shadow: 0 1px 4px rgba(192, 68, 10, 0.25);
}

.btn-primary:hover {
  background: var(--clr-primary-600);
  border-color: var(--clr-primary-600);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(192, 68, 10, 0.30);
}

.btn-outline {
  background: var(--bg-surface);
  color: var(--text-primary);
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-lg);
  font-size: 0.9375rem;
  font-weight: 600;
  font-family: var(--font-sans);
  text-decoration: none;
  border: 1.5px solid var(--border-default);
  transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.btn-outline:hover {
  background: var(--bg-surface-3);
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

.btn-advanced-settings {
  margin-top: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-color: var(--border-color);
  justify-content: center;
}
.btn-advanced-settings:hover {
  color: var(--clr-primary-700);
  border-color: var(--clr-primary-400);
  background: var(--clr-primary-50);
}

/* Hero badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.35rem 1rem;
  background: var(--clr-primary-50);
  color: var(--clr-primary-600);
  border: 1px solid rgba(192, 68, 10, 0.22);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--space-6);
}

/* Features section */
.features {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-16) var(--space-10);
}

.features-inner {
  max-width: 960px;
  margin: 0 auto;
}

.features > .features-inner > h2 {
  text-align: center;
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-10);
  letter-spacing: -0.02em;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-6);
}

.feature-card {
  padding: var(--space-6);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  background: var(--bg-surface-2);
  box-shadow: var(--card-shadow);
  transition: box-shadow var(--transition-base), border-color var(--transition-base), transform var(--transition-base);
}

.feature-card:hover {
  box-shadow: var(--card-hover-shadow);
  border-color: var(--clr-primary-200);
  transform: translateY(-3px);
}

.feature-icon {
  font-size: 1.75rem;
  margin-bottom: var(--space-3);
}

.feature-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.feature-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* Landing footer */
.landing-footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-5) var(--space-10);
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-sans);
}

/* ============================================================
   30. LOGIN PAGE (login.html)
   ============================================================ */
.login-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-2xl);
  padding: var(--space-10) var(--space-10);
  width: 100%;
  max-width: 440px;
  box-shadow: var(--shadow-xl);
}

.login-card h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: var(--space-2);
  letter-spacing: -0.02em;
  font-family: var(--font-sans);
}

.login-card .subtitle {
  font-size: 0.875rem;
  color: var(--text-muted);
  text-align: center;
  margin-bottom: var(--space-8);
}

.login-card label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--space-1);
}

.login-card input[type="text"],
.login-card input[type="password"],
.login-card select {
  width: 100%;
  padding: 0.625rem 0.875rem;
  font-size: 0.9375rem;
  font-family: var(--font-sans);
  border: 1.5px solid var(--input-border);
  border-radius: var(--radius-md);
  background: var(--input-bg);
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  margin-bottom: var(--space-4);
  appearance: none;
  -webkit-appearance: none;
  box-sizing: border-box;
}

.login-card input:focus,
.login-card select:focus {
  border-color: var(--input-focus-border);
  box-shadow: 0 0 0 3px var(--input-focus-ring);
}

.select-wrap {
  position: relative;
  margin-bottom: var(--space-4);
}

.select-wrap select { margin-bottom: 0; }

.select-wrap::after {
  content: '▾';
  position: absolute;
  right: 0.875rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
  font-size: 0.875rem;
}

.btn-login-submit {
  width: 100%;
  padding: 0.6875rem;
  background: var(--clr-primary-500);
  color: #fff;
  font-size: 0.9375rem;
  font-weight: 600;
  font-family: var(--font-sans);
  border: 1.5px solid var(--clr-primary-500);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
  margin-top: var(--space-1);
  box-shadow: 0 1px 4px rgba(192, 68, 10, 0.25);
}

.btn-login-submit:hover {
  background: var(--clr-primary-600);
  border-color: var(--clr-primary-600);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(192, 68, 10, 0.28);
}

.error-msg {
  background: var(--clr-danger-100);
  border: 1px solid #fca5a5;
  color: #b91c1c;
  font-size: 0.8125rem;
  padding: 0.5rem 0.875rem;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-4);
  display: none;
}

.error-msg.show { display: block; }

.login-footer-text {
  margin-top: var(--space-5);
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.login-footer-text a {
  color: var(--clr-primary-600);
  text-decoration: none;
  font-weight: 500;
}

.login-footer-text a:hover {
  color: var(--clr-primary-700);
  text-decoration: underline;
}

.brand-top {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--clr-primary-600);
  text-align: center;
  margin-bottom: var(--space-5);
  letter-spacing: -0.01em;
  font-family: var(--font-sans);
}

/* ============================================================
   31. RESPONSIVE - TABLET (≤ 1100px)
   ============================================================ */
@media (max-width: 1100px) {
  .workload-grid { grid-template-columns: 1fr; }
  .workload-controls-card { position: static; }
  .reports-charts-grid { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: 1fr 1fr; }
}

/* ============================================================
   32. RESPONSIVE - MOBILE (≤ 768px)
   ============================================================ */
@media (max-width: 768px) {
  :root {
    --nav-h:         3.25rem;
    --navbar-height: 3.25rem;
  }

  html { font-size: 13px; }

  .top-navbar {
    padding: 0 var(--space-4);
    gap: var(--space-2);
  }

  .nav-menu {
    gap: 0;
    flex-wrap: nowrap;
    overflow-x: auto;
  }

  .nav-item {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    flex-shrink: 0;
  }

  .search-box { display: none; }

  .panels-wrapper { padding: var(--space-3) var(--space-3) 0; }

  .panel { padding: var(--space-5) var(--space-4); }

  .stats-row { grid-template-columns: 1fr; }

  .stat-value { font-size: 1.625rem; }

  .reports-charts-grid { grid-template-columns: 1fr; }

  .table-wrapper { overflow-x: auto; }

  .export-buttons { flex-direction: column; }
  .export-buttons button { width: 100%; }

  .modal-card { margin: 0 var(--space-4); }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: var(--space-2);
  }

  .hero { padding: var(--space-12) var(--space-4) var(--space-10); }
  .hero h1 { font-size: 1.875rem; }

  .landing-nav { padding: 0 var(--space-4); }
  .landing-footer { padding: var(--space-4); }

  .features { padding: var(--space-10) var(--space-4); }
  .features-grid { grid-template-columns: 1fr; }

  .login-card { padding: var(--space-6); }

  .loader-row { gap: var(--space-5); flex-wrap: wrap; justify-content: center; }
}

/* ============================================================
   33. RESPONSIVE - SMALL MOBILE (≤ 480px)
   ============================================================ */
@media (max-width: 480px) {
  .stats-row { grid-template-columns: 1fr; }
  .fairness-report-grid { grid-template-columns: 1fr 1fr; }
  .fac-assign-grid { grid-template-columns: 1fr; }
  .hero-buttons { flex-direction: column; align-items: stretch; }
  .workload-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   34. PRINT STYLES
   ============================================================ */
@media print {
  .top-navbar,
  .landing-nav,
  .export-buttons,
  .workload-controls-card { display: none !important; }

  body {
    background: white;
    color: black;
    font-size: 11pt;
    overflow: auto;
    height: auto;
  }

  .panel {
    border: none;
    box-shadow: none;
    padding: 0;
    border-radius: 0;
  }

  .panels-wrapper {
    height: auto;
    overflow: visible;
    padding: 0;
    margin: 0;
  }

  .stat-card,
  .chart-card,
  .workload-result-card,
  .dashboard-chart-card,
  .fairness-card {
    box-shadow: none;
    border: 1px solid #ccc;
    break-inside: avoid;
  }
}
/* ============================================================
   PHASE 3 - Section Badges, Dashboard Schedule Emphasis
   ============================================================ */

/* Section badge (IT1B1, IT2B1, etc.) */
.section-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.125rem 0.5rem;
  border-radius: var(--radius-sm);
  background: var(--clr-primary-50);
  border: 1px solid rgba(192, 68, 10, 0.25);
  color: var(--clr-primary-700);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  white-space: nowrap;
}

.section-cell {
  white-space: nowrap;
}

.section-tags-inline {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 3px;
  vertical-align: middle;
  margin-left: 4px;
}

.subject-year-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.1rem 0.4rem;
  border-radius: var(--radius-sm);
  background: var(--bg-surface-3);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 0.68rem;
  font-weight: 600;
  margin-left: 4px;
  white-space: nowrap;
  vertical-align: middle;
}

/* Dashboard schedule card - emphasized (shown first) */
.dashboard-schedule-card {
  border-left: 3.5px solid var(--clr-primary-500);
  margin-bottom: var(--space-5);
}

.dashboard-chart-secondary {
  margin-top: var(--space-2);
}

/* Dashboard card header with subtitle */
.dashboard-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--border-subtle);
}

.dashboard-card-header h3 {
  margin-bottom: var(--space-1);
}

.dashboard-card-sub {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.4;
}

/* Class type badge (LECTURE / LAB) */
.class-type-tag {
  display: inline-block;
  padding: 2px 7px;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.class-type-tag.lecture {
  background: #e0f2fe;
  color: #0369a1;
}
.class-type-tag.lab {
  background: #f3e8ff;
  color: #6b21a8;
}

/* Updated subject type tags for new classification */
.type-tag.core-theory       { background: #f1f5f9; color: #334155; }
.type-tag.programming       { background: #dbeafe; color: #1d4ed8; }
.type-tag.systems           { background: #e0f2fe; color: #0369a1; }
.type-tag.data-management   { background: #f3e8ff; color: #6b21a8; }
.type-tag.networks---security{ background: #fef9c3; color: #92400e; }
.type-tag.applied-computing { background: #dcfce7; color: #15803d; }
.type-tag.mathematics       { background: #fce7f3; color: #9d174d; }
.type-tag.web---app-dev     { background: #ffedd5; color: #9a3412; }
.type-tag.research---capstone{ background: #f0fdf4; color: #166534; }
.type-tag.industry-practice { background: #fef3c7; color: #92400e; }
.type-tag.elective          { background: #f1f5f9; color: #475569; }

/* ============================================================
   PHASE 2 UI - Room Management, Class Sizes, Soft Constraints
   ============================================================ */

/* ── Room Management ── */
.rooms-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

@media (max-width: 768px) {
  .rooms-grid { grid-template-columns: 1fr; }
}

.room-section-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  box-shadow: var(--card-shadow);
}

.room-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--border-subtle);
}

.room-section-title {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.room-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  max-height: 320px;
  overflow-y: auto;
}

.room-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--bg-surface-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.375rem 0.625rem;
}

.room-item input[type="text"] {
  flex: 1;
  padding: 0.3125rem 0.625rem;
  font-size: 0.8125rem;
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  background: var(--input-bg);
  width: auto;
}

.room-item input[type="text"]:focus {
  border-color: var(--input-focus-border);
  box-shadow: 0 0 0 2px var(--input-focus-ring);
  outline: none;
}

.room-item-del {
  background: none;
  border: none;
  color: var(--clr-danger-500);
  cursor: pointer;
  padding: 0.125rem 0.375rem;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  line-height: 1;
  flex-shrink: 0;
  transition: background var(--transition-fast);
}
.room-item-del:hover { background: var(--clr-danger-100); }

/* ── Class Sizes Table ── */
#classSizesTable input[type="text"],
#classSizesTable input[type="number"] {
  width: 100%;
  padding: 0.3125rem 0.625rem;
  font-size: 0.875rem;
  min-width: 80px;
}

/* ── Soft Constraints ── */
.soft-constraint-select-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-bottom: var(--space-4);
}

.soft-constraint-form {
  background: var(--bg-surface-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-6);
}

.sc-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4) var(--space-6);
  margin-bottom: var(--space-4);
}

@media (max-width: 768px) {
  .sc-form-grid { grid-template-columns: 1fr; }
}

.sc-leave-section {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: var(--space-4) var(--space-6);
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border-subtle);
}

@media (max-width: 900px) {
  .sc-leave-section { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 600px) {
  .sc-leave-section { grid-template-columns: 1fr; }
}

.sc-checkbox-label {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
  cursor: pointer;
}

.sc-checkbox-label input[type="checkbox"] {
  width: auto;
  cursor: pointer;
}

.date-list-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.date-entry {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.date-entry input[type="date"],
.date-entry input[type="text"] {
  flex: 1;
  padding: 0.375rem 0.625rem;
  font-size: 0.8125rem;
  min-width: 0;
  width: auto;
}

.date-entry-del {
  background: none;
  border: none;
  color: var(--clr-danger-500);
  cursor: pointer;
  padding: 0.125rem 0.375rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  flex-shrink: 0;
  transition: background var(--transition-fast);
}
.date-entry-del:hover { background: var(--clr-danger-100); }

.sc-day-restrict {
  margin-top: var(--space-2);
}

/* ── Timetable room display ── */
.tt-room-tag {
  font-size: 0.65rem;
  color: var(--clr-primary-600);
  background: var(--clr-primary-50);
  border-radius: var(--radius-sm);
  padding: 0.1rem 0.35rem;
  margin-top: 2px;
  display: inline-block;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.tt-class-tag {
  font-size: 0.62rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.1rem 0.3rem;
  border-radius: 3px;
  margin-bottom: 2px;
  display: inline-block;
}
.tt-class-tag.lecture { background: #e0f2fe; color: #0369a1; }
.tt-class-tag.lab     { background: #f3e8ff; color: #6b21a8; }

/* Schedule display format: Prof X: IT101 LECTURE for Subject - time */
.sched-display-line {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.5;
}
.sched-display-line .sched-room { color: var(--clr-primary-600); font-weight: 600; }
.sched-display-line .sched-type { color: var(--text-muted); font-style: italic; }

/* Room badge in reports */
.room-badge {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 0.125rem 0.5rem;
  border-radius: var(--radius-sm);
  background: var(--bg-surface-3);
  border: 1px solid var(--border-subtle);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--clr-primary-700);
  white-space: nowrap;
}

/* Conflict highlight */
.conflict-room {
  background: var(--clr-danger-100) !important;
  color: var(--clr-danger-500) !important;
  border-color: var(--clr-danger-500) !important;
}

/* Class size section key badge */
.cs-key-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--clr-primary-700);
  background: var(--clr-primary-50);
  border: 1px solid rgba(192,68,10,0.2);
  border-radius: var(--radius-sm);
  padding: 0.125rem 0.5rem;
}
/* ── fac-assign-list item with slot/room/class_type ── */
.fac-assign-item-full {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  padding: 0.25rem 0;
  border-bottom: 1px solid var(--border-subtle);
}
.fac-assign-item-full:last-child { border-bottom: none; }

.fac-assign-item-inner {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.fac-assign-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  margin-top: 2px;
}

.fac-assign-slot {
  font-size: 0.68rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  white-space: nowrap;
}

/* ============================================================
   ACADEMIC MODE - SEMESTER BADGE & PANEL CONTEXT
   ============================================================ */

/* Navbar semester badge */
.nav-semester-badge {
  display: inline-flex;
  align-items: center;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--clr-primary-600);
  letter-spacing: 0.01em;
  white-space: nowrap;
  flex-shrink: 0;
}
.nav-semester-badge::before {
  display: none;
}

/* Sem context badge in panel header */
.sem-context-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  background: var(--clr-primary-50);
  color: var(--clr-primary-700);
  border-radius: 10px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  white-space: nowrap;
  flex-shrink: 0;
  align-self: flex-start;
  margin-top: 4px;
}
.sem-context-badge::before {
  display: none;
}

/* Academic Mode Card in Settings */
.academic-mode-card {
  background: var(--bg-white);
  border: 1.5px solid var(--border-subtle);
  border-radius: var(--radius-lg, 12px);
  padding: 20px 24px;
  max-width: 600px;
  margin-bottom: 28px;
  box-shadow: var(--shadow-sm);
}

#engineSettingsCard {
  max-width: 100%;
}

#engineSettingsCard .engine-settings-row {
  display: flex;
  flex-direction: row;
  align-items: stretch;
  gap: 0;
}

#engineSettingsCard .engine-settings-col {
  flex: 1;
  display: grid;
  gap: 16px;
  align-items: start;
}

#engineSettingsCard .engine-settings-col:first-child {
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto 1fr;
  padding-right: 28px;
}

#engineSettingsCard .engine-settings-col:last-child {
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: auto 1fr;
  padding-left: 28px;
}

#engineSettingsCard .engine-settings-section-label {
  grid-column: 1 / -1;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0;
}

#engineSettingsCard .engine-settings-divider {
  width: 1px;
  background: var(--border-subtle);
  flex-shrink: 0;
}

#engineSettingsCard .modal-form-group {
  margin: 0;
}

.academic-mode-header {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 16px;
}

.academic-mode-header-icon {
  font-size: 1.5rem;
  line-height: 1;
  flex-shrink: 0;
  margin-top: 2px;
}

.academic-mode-header-title {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 3px;
}

.academic-mode-header-sub {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.academic-active-banner {
  display: flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--clr-primary-50), #fff8f5);
  border: 1.5px solid var(--clr-primary-200);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--clr-primary-700);
  margin-bottom: 16px;
}
.academic-active-banner.hidden { display: none; }

.academic-active-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--clr-primary-500);
  flex-shrink: 0;
  animation: pulse-dot 1.8s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.75); }
}

.academic-mode-form-row {
  display: flex;
  align-items: flex-end;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.academic-mode-form-row .modal-form-group label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  display: block;
  margin-bottom: 5px;
}
.academic-mode-form-row .modal-form-group input,
.academic-mode-form-row .modal-form-group select {
  min-width: 160px;
}

.academic-mode-save-col {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 2px;
}

.academic-saved-flash {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--clr-success-500);
  animation: fade-in-out 2.5s ease forwards;
}
@keyframes fade-in-out {
  0% { opacity: 0; transform: translateY(-4px); }
  15% { opacity: 1; transform: translateY(0); }
  75% { opacity: 1; }
  100% { opacity: 0; }
}

.academic-mode-warning {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  background: var(--clr-warning-100);
  border: 1px solid var(--clr-accent-100);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 0.775rem;
  color: var(--clr-accent-500);
  line-height: 1.45;
}
.academic-warning-icon {
  font-style: normal;
  flex-shrink: 0;
  margin-top: 1px;
}

@media (max-width: 600px) {
  .academic-mode-form-row {
    flex-direction: column;
    align-items: stretch;
  }
  .academic-mode-form-row .modal-form-group {
    flex: unset;
    width: 100%;
  }
  .academic-mode-form-row .modal-form-group input,
  .academic-mode-form-row .modal-form-group select {
    min-width: unset;
    width: 100%;
  }
  .academic-mode-save-col {
    flex-direction: row;
  }
  .nav-semester-badge {
    font-size: 0.65rem;
    padding: 2px 8px;
  }
  .sem-context-badge {
    font-size: 0.7rem;
    padding: 4px 10px;
  }
}

/* ============================================================
   PHASE 3 - Dot marker, GA table section col, UX polish
   ============================================================ */

/* Dot marker for faculty assignment list items */
.dot {
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--clr-primary-300);
  flex-shrink: 0;
  margin-top: 6px;
}

/* GA schedule table - section column */
#gaScheduleTable .section-cell {
  white-space: nowrap;
}
#gaScheduleTable .section-badge {
  margin-right: 2px;
}

/* Fac-assign section badge spacing */
.fac-assign-meta .section-badge {
  font-size: 0.62rem;
  padding: 0.1rem 0.4rem;
}

/* Reports summary: section tags inline */
.section-tags-inline .section-badge {
  font-size: 0.62rem;
  padding: 0.1rem 0.4rem;
}

/* Panel header h2 stronger weight */
.page-header h2,
.page-header > div h2 {
  font-weight: 700;
}

/* Workload result card - tighter header spacing */
.workload-result-card h3 {
  font-weight: 700;
  color: var(--text-primary);
}

/* Schedule table - emphasize faculty name */
#gaScheduleTable td:first-child {
  font-weight: 600;
  color: var(--text-primary);
}

/* Reports summary table faculty column */
#reportsSummaryTable td:first-child strong {
  font-size: 0.9375rem;
}

/* Empty state better padding in schedule cards */
.dashboard-schedule-card .empty-state-msg {
  padding: var(--space-8) 0;
  font-size: 0.9rem;
}

/* Stat card value color for overload */
#statOverloaded {
  color: var(--clr-danger-500);
}

/* Stat sub label improvement */
.stat-label {
  font-size: 0.7rem;
}

/* Timetable section tag (IT1B1 etc.) */
.tt-section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 700;
  color: var(--clr-primary-700);
  background: var(--clr-primary-50);
  border: 1px solid rgba(192,68,10,0.2);
  border-radius: 3px;
  padding: 0.1rem 0.35rem;
  margin-bottom: 2px;
  letter-spacing: 0.03em;
}

/* Curriculum summary - full-width stacked tables */
.curriculum-summary-wrap {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  margin-top: var(--space-4);
}

.curriculum-group {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--card-shadow);
}

.curriculum-header {
  padding: 0.5rem 1rem;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-muted);
  background: var(--bg-surface-2);
  border-bottom: 1px solid var(--border-subtle);
}

.curriculum-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  background: var(--bg-surface);
}

.curriculum-table thead th {
  background: var(--bg-surface-2);
  padding: 0.5rem 0.875rem;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-default);
}

.curriculum-table td {
  padding: 0.5625rem 0.875rem;
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: middle;
}

.curriculum-table tbody tr:last-child td { border-bottom: none; }
.curriculum-table tbody tr:hover { background: var(--bg-surface-2); }

.txt-center { text-align: center; }
.font-mono  { font-family: var(--font-mono); }

/* ============================================================
   FAC-ASSIGN CARD — POLISHED LAYOUT (patched)
   ============================================================ */

/* Header: name + count stacked, units badge + edit button right-aligned */
.fac-assign-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--border-subtle);
}
.fac-assign-header-info {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
  gap: 1px;
}
.fac-assign-name {
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: unset;
}
.fac-assign-count {
  font-size: 0.68rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Compact edit button in card header */
.fac-assign-header .btn-edit-faculty {
  padding: 0.2rem 0.55rem;
  font-size: 0.78rem;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  opacity: 0.75;
  transition: opacity var(--transition-fast), background var(--transition-fast);
}
.fac-assign-header .btn-edit-faculty:hover { opacity: 1; }

/* List item row */
.fac-assign-item-full {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 0.35rem 0;
  border-bottom: 1px solid var(--border-subtle);
}
.fac-assign-item-full:last-child { border-bottom: none; }

/* Color dot indicating LECTURE vs LAB */
.fac-assign-ct-dot {
  flex-shrink: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  margin-top: 5px;
}
.ct-dot-lecture { background: var(--text-primary); }
.ct-dot-lab     { background: var(--text-primary); }

/* Subject name */
.fac-assign-subject-name {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-primary);
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

/* Meta row: type tag + section + slot + room */
.fac-assign-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  margin-top: 3px;
}
.fac-assign-section {
  font-size: 0.6rem !important;
  padding: 0.1rem 0.35rem !important;
}
.fac-assign-slot {
  font-size: 0.67rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  white-space: nowrap;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  padding: 1px 5px;
}
.fac-assign-room {
  font-size: 0.67rem;
  font-weight: 600;
  color: var(--clr-primary-600);
  background: var(--clr-primary-50);
  border: 1px solid var(--clr-primary-100);
  border-radius: 4px;
  padding: 1px 6px;
  white-space: nowrap;
}

/* ============================================================
   INDEX (LANDING PAGE) — lp-* rules
   Nav unified with .top-navbar design tokens
   ============================================================ */

/* ── NAV ── */
.lp-nav {
  background: var(--nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--nav-border);
  box-shadow: var(--nav-shadow);
  padding: 0 var(--space-5);
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: background var(--transition-slow), border-color var(--transition-slow);
}

.lp-nav-left {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.lp-logo-wrap {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
  text-decoration: none;
}

.lp-brand {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--clr-primary-600);
  line-height: 1.2;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.lp-brand-sub {
  font-size: 0.65rem;
  color: var(--text-muted);
  font-weight: 400;
  line-height: 1.2;
}

.lp-nav-right {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.lp-role-pill {
  border: 1px solid var(--border-default);
  border-radius: var(--radius-full);
  padding: 0.25rem 0.875rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  background: transparent;
  font-family: var(--font-sans);
}

.lp-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background: var(--border-default);
  overflow: hidden;
  flex-shrink: 0;
  border: 2px solid var(--border-default);
  transition: border-color var(--transition-fast);
}

.lp-avatar:hover { border-color: var(--clr-primary-400); }

.lp-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ── HERO ── */
.lp-hero {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 40px;
  padding: 64px 72px 60px;
  max-width: 1300px;
  margin: 0 auto;
  width: 100%;
}

.lp-hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4.5vw, 3.6rem);
  font-weight: 400;
  line-height: 1.12;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  margin-bottom: 10px;
}

.lp-hero-subtitle {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--clr-primary-500);
  margin-bottom: 22px;
  letter-spacing: 0.01em;
}

.lp-hero-desc {
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--text-muted);
  max-width: 500px;
  margin-bottom: 36px;
}

.lp-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--clr-primary-500);
  color: #fff;
  padding: 13px 28px;
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  font-weight: 600;
  text-decoration: none;
  transition: background var(--transition-fast), transform 0.1s;
  margin-bottom: 36px;
}

.lp-cta:hover {
  background: var(--clr-primary-600);
  transform: translateY(-1px);
}

.lp-cta-arrow { font-size: 1rem; }

.lp-feature-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.lp-tag {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  border: 1px solid var(--border-default);
  background: var(--bg-white);
  border-radius: var(--radius-full);
  padding: 6px 14px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
}

.lp-tag-icon {
  font-size: 0.8rem;
  opacity: 0.75;
}

/* ── HERO RIGHT CARD ── */
.lp-hero-right {
  display: flex;
  justify-content: center;
  align-items: center;
}

.lp-visual-card {
  width: 100%;
  max-width: 340px;
  aspect-ratio: 1 / 1;
  background: var(--clr-primary-50);
  border-radius: var(--radius-2xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 40px;
  box-shadow: 0 2px 20px rgba(192, 68, 10, 0.07);
}

.lp-visual-icon {
  width: 80px;
  height: 80px;
  background: rgba(192, 68, 10, 0.10);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.lp-visual-icon svg {
  width: 40px;
  height: 40px;
  stroke: var(--clr-primary-500);
  stroke-width: 1.5;
  fill: none;
}

.lp-visual-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  text-align: center;
}

.lp-visual-stat-num {
  font-family: var(--font-display);
  font-size: 2.2rem;
  color: var(--clr-primary-500);
  line-height: 1;
}

.lp-visual-stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
}

.lp-visual-pills {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: center;
}

.lp-vpill {
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 0.68rem;
  font-weight: 600;
}

.lp-vpill-green  { background: #d1fae5; color: #065f46; }
.lp-vpill-orange { background: var(--clr-primary-100); color: var(--clr-primary-700); }
.lp-vpill-blue   { background: #dbeafe; color: #1e40af; }

/* ── FOOTER ── */
.lp-footer {
  background: var(--bg-white);
  border-top: 1px solid var(--border-default);
  padding: 16px var(--space-5);
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Body layout for landing page */
body:has(.lp-nav) {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ── LANDING RESPONSIVE ── */
@media (max-width: 820px) {
  .lp-hero {
    grid-template-columns: 1fr;
    padding: 40px var(--space-5);
    text-align: center;
  }
  .lp-hero-right { display: none; }
  .lp-hero-desc  { max-width: 100%; }
  .lp-feature-tags { justify-content: center; }
}
/* ============================================================
   ROOM CAPACITY — Settings Room Management
   ============================================================ */

.room-capacity-legend {
  display: flex;
  gap: var(--space-5);
  flex-wrap: wrap;
  margin-bottom: var(--space-3);
  padding: var(--space-2) var(--space-3);
  background: var(--bg-surface-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.room-cap-legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.room-cap-dot {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  flex-shrink: 0;
}
.dot-rec { background: var(--clr-success-500); }
.dot-max { background: var(--clr-danger-500); }

.room-cap-col-labels {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0 0.625rem var(--space-1);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}
.room-cap-col-labels span:first-child { flex: 2; min-width: 0; }
.room-cap-col-labels span:nth-child(2),
.room-cap-col-labels span:nth-child(3) {
  width: 62px;
  flex-shrink: 0;
  text-align: center;
}
.room-cap-col-spacer {
  width: 1.625rem; /* matches delete button footprint */
  flex-shrink: 0;
}

/* Room item with capacity fields */
.room-item .room-cap-input {
  width: 62px;
  flex-shrink: 0;
  padding: 0.3125rem 0.375rem;
  font-size: 0.75rem;
  text-align: center;
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  background: var(--input-bg);
  color: var(--text-primary);
  -moz-appearance: textfield;
}
.room-item .room-cap-input::-webkit-inner-spin-button,
.room-item .room-cap-input::-webkit-outer-spin-button { opacity: 0.4; }

.room-item .room-rec-input { border-color: var(--clr-success-500); }
.room-item .room-rec-input:focus {
  border-color: var(--clr-success-500);
  box-shadow: 0 0 0 2px rgba(34,197,94,.18);
  outline: none;
}

.room-item .room-max-input { border-color: var(--clr-danger-500); }
.room-item .room-max-input:focus {
  border-color: var(--clr-danger-500);
  box-shadow: 0 0 0 2px rgba(239,68,68,.15);
  outline: none;
}

/* ============================================================
   CAPACITY METRICS DASHBOARD CARD
   ============================================================ */

.capacity-summary-card {
  margin-bottom: var(--space-6);
}

.capacity-metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-4);
}

@media (max-width: 860px) {
  .capacity-metrics-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .capacity-metrics-grid { grid-template-columns: 1fr; }
}

.capacity-metric-tile {
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  border: 1px solid var(--border-subtle);
  text-align: center;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.capacity-metric-tile:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.capacity-ok   { background: var(--clr-success-100); border-color: var(--clr-success-500); }
.capacity-warn { background: var(--clr-warning-100); border-color: var(--clr-warning-500); }
.capacity-hard { background: var(--clr-danger-100);  border-color: var(--clr-danger-500); }
.capacity-total {
  background: var(--bg-surface-2);
  border-color: var(--border-default, var(--border-subtle));
}

.capacity-metric-value {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.capacity-metric-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.capacity-metric-pct {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-muted);
}

/* Overall status badge */
.capacity-overall-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  flex-shrink: 0;
}
.badge-ok   { background: var(--clr-success-100); color: #166534; }
.badge-warn { background: var(--clr-warning-100); color: #92400e; }
.badge-hard { background: var(--clr-danger-100);  color: #991b1b; }

/* Hard violations list */
.capacity-violations-list {
  margin-top: var(--space-4);
  border: 1px solid var(--clr-danger-500);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.capacity-violations-header {
  background: var(--clr-danger-100);
  color: #991b1b;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--clr-danger-500);
}

.capacity-violation-row {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--clr-danger-100);
  font-size: 0.8125rem;
}
.capacity-violation-row:last-child { border-bottom: none; }

.viol-room {
  font-weight: 700;
  color: var(--clr-danger-500);
  white-space: nowrap;
  min-width: 80px;
}

.viol-detail {
  flex: 1;
  color: var(--text-secondary);
}

.viol-counts {
  display: inline-block;
  margin-left: var(--space-2);
  background: var(--clr-danger-100);
  color: #991b1b;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 4px;
}

/* ============================================================
   CAPACITY ANALYTICS TABLES & STUDENT COUNT TAG
   ============================================================ */
.cap-details-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}
.cap-details-table thead th {
  text-align: left;
  padding: 0.4375rem 0.875rem;
  background: var(--bg-surface-2);
  border-bottom: 1px solid var(--border-default);
  font-weight: 700;
  color: var(--text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.cap-details-table tbody td {
  padding: 0.4375rem 0.875rem;
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: middle;
}
.cap-details-table tbody tr:hover { background: var(--bg-surface-2); }

.student-count-tag {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-surface-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.1rem 0.4rem;
  vertical-align: middle;
}