/* Auteur Design System v3 — Modern Premium Dark */
/* Measured near-black, muted teal primary, purposeful glass, subtle depth */

:root {
  /* Background — measured near-black (not reflex) */
  --bg: #0a0c10;              /* OKLCH L ≈ 0.07 */
  --bg-elevated: #0e1015;     /* subtle elevation */
  --surface-1: #161920;       /* cards, nav — lifted for contrast */
  --surface-2: #1d2129;       /* elevated cards, inputs */
  --surface-3: #232832;       /* deepest layer / modals */

  /* Borders — visible separation */
  --border: #333846;
  --border-strong: #444a5a;
  --border-focus: #2ec4b6;

  /* Primary — muted teal */
  --primary: #2ec4b6;
  --primary-hover: #3dd6ca;
  --primary-light: rgba(46,196,182,0.12);
  --primary-text: #0a0c10;

  /* Accent blue — secondary actions */
  --accent-blue: #3b82f6;
  --accent-blue-hover: #60a5fa;
  --accent-blue-light: rgba(59,130,246,0.12);

  /* Semantic */
  --success: #10b981;
  --success-light: rgba(16,185,129,0.12);
  --danger: #ef4444;
  --danger-light: rgba(239,68,68,0.12);
  --warning: #f59e0b;
  --warning-light: rgba(245,158,11,0.12);

  /* Text — high contrast */
  --text-primary: #f1f2f4;      /* 14.8:1 on #0a0c10 */
  --text-secondary: #a8adb8;    /* 7.8:1 */
  --text-muted: #6b7280;        /* 4.5:1 large only */
  --text-inverse: #0a0c10;

  /* Typography — geometric precision */
  --font-display: "SF Pro Display", "Geist", -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --font-body: "SF Pro Text", "Geist", -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --font-mono: "SF Mono", "IBM Plex Mono", ui-monospace, monospace;

  /* Spacing */
  --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;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;

  /* Shadows — depth without blur */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.35);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.45);
  --shadow-glass: 0 8px 32px rgba(0,0,0,0.3);

  /* Transitions */
  --duration-fast: 100ms;
  --duration-normal: 150ms;
  --duration-slow: 300ms;
  --ease: cubic-bezier(0.2, 0, 0, 1);
}

/* Hero gradient — subtle, slow */
@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Reset & base */
* { box-sizing: border-box; }
html { font-size: 16px; -webkit-font-smoothing: antialiased; }
body {
  background-color: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.55;
  min-height: 100vh;
}

/* Hero background — cinematic, slow */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: radial-gradient(ellipse 80% 50% at 50% 0%, rgba(46,196,182,0.04) 0%, transparent 70%),
              radial-gradient(ellipse 60% 40% at 100% 100%, rgba(59,130,246,0.03) 0%, transparent 60%),
              var(--bg);
  background-size: 200% 200%;
  animation: gradientShift 20s ease infinite;
  z-index: -1;
  pointer-events: none;
}

/* Layout container */
.container, .container-fluid { max-width: 1400px; }

/* ============ NAVBAR — solid surface, glass overlay on scroll ============ */
.navbar {
  background-color: rgba(18,20,26,0.95) !important;
  backdrop-filter: blur(20px) saturate(1.2);
  -webkit-backdrop-filter: blur(20px) saturate(1.2);
  border-bottom: 1px solid var(--border);
  padding: var(--space-3) 0;
  transition: background var(--duration-normal) var(--ease), border var(--duration-normal) var(--ease);
}
.navbar-brand {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.125rem;
  letter-spacing: -0.02em;
  color: var(--text-primary) !important;
}
.nav-link {
  font-weight: 500;
  color: var(--text-secondary) !important;
  padding: var(--space-2) var(--space-3) !important;
  border-radius: var(--radius-md);
  transition: color var(--duration-fast) var(--ease), background var(--duration-fast) var(--ease);
}
.nav-link:hover, .nav-link.active {
  color: var(--primary) !important;
  background: var(--primary-light);
}

/* ============ BUTTONS ============ */
.btn {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.875rem;
  letter-spacing: 0.01em;
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-4);
  transition: all var(--duration-fast) var(--ease);
  border: 1px solid transparent;
  position: relative;
  overflow: hidden;
}

/* Primary — muted teal */
.btn-primary, .btn-gradient {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--primary-text);
  box-shadow: 0 2px 8px rgba(46,196,182,0.25);
}
.btn-primary:hover, .btn-gradient:hover,
.btn-primary:focus, .btn-gradient:focus {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
  color: var(--primary-text);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(46,196,182,0.35);
}

/* Secondary — outline */
.btn-secondary, .btn-outline-light {
  background: transparent;
  border-color: var(--border-strong);
  color: var(--text-secondary);
}
.btn-secondary:hover, .btn-outline-light:hover {
  background: var(--primary-light);
  border-color: var(--primary);
  color: var(--text-primary);
}

/* Ghost — minimal */
.btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--text-secondary);
  padding: var(--space-1) var(--space-3);
}
.btn-ghost:hover { background: var(--surface-2); color: var(--text-primary); }

/* Accent blue */
.btn-accent {
  background: var(--accent-blue);
  border-color: var(--accent-blue);
  color: var(--text-inverse);
}
.btn-accent:hover { background: var(--accent-blue-hover); }

/* Semantic */
.btn-success { background: var(--success); border-color: var(--success); color: var(--text-inverse); }
.btn-danger { background: var(--danger); border-color: var(--danger); color: var(--text-inverse); }
.btn-warning { background: var(--warning); border-color: var(--warning); color: var(--text-inverse); }

/* Sizes */
.btn-sm { font-size: 0.8125rem; padding: var(--space-1) var(--space-3); }
.btn-lg { font-size: 1rem; padding: var(--space-3) var(--space-6); }

/* Prevent button text wrapping */
.btn {
  white-space: nowrap;
}

/* ============ FORMS ============ */
.form-label {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.875rem;
  color: var(--text-primary);
  margin-bottom: var(--space-1);
  letter-spacing: 0.01em;
}

.form-control, .form-select {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.875rem;
  padding: var(--space-2) var(--space-3);
  transition: border-color var(--duration-fast) var(--ease), box-shadow var(--duration-fast) var(--ease), background var(--duration-fast) var(--ease), color var(--duration-fast) var(--ease);
}
.form-control:focus, .form-select:focus {
  background: var(--surface-3);
  color: var(--text-primary);
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--primary-light), 0 0 20px rgba(46,196,182,0.1);
  outline: none;
}
.form-control::placeholder { color: var(--text-muted); }
.form-control:disabled { background: var(--bg-elevated); color: var(--text-muted); }

.form-text { font-size: 0.75rem; color: var(--text-muted); margin-top: var(--space-1); }

/* ============ CARDS — solid surfaces, glass only for overlays ============ */
.card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: box-shadow var(--duration-normal) var(--ease), border-color var(--duration-normal) var(--ease), transform var(--duration-fast) var(--ease);
}
.card:hover { box-shadow: var(--shadow-lg); }

/* Auth cards — stronger elevation, subtle teal glow */
.card-auth {
  box-shadow: 0 0 0 1px var(--border), 0 12px 40px rgba(0,0,0,0.5), 0 0 60px rgba(46,196,182,0.04);
}
.card-auth:hover { box-shadow: 0 0 0 1px var(--border), 0 16px 48px rgba(0,0,0,0.6), 0 0 80px rgba(46,196,182,0.06); }

/* Auth headings — high contrast */
.card-auth .card-title,
.card-auth h1, .card-auth h2, .card-auth h3, .card-auth h4, .card-auth h5, .card-auth h6 {
  color: var(--text-primary) !important;
}
.card-auth .text-secondary {
  color: var(--text-secondary) !important;
}
.card-header {
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--text-primary);
}
.card-body { padding: var(--space-4); }

/* Glass overlay — ONLY for modals/dropdowns (purposeful) */
.glass-overlay {
  background: rgba(18,20,26,0.85);
  backdrop-filter: blur(24px) saturate(1.3);
  -webkit-backdrop-filter: blur(24px) saturate(1.3);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-glass);
}

/* ============ TABLES ============ */
.table {
  color: var(--text-primary);
  border-collapse: separate;
  border-spacing: 0;
  width: 100%;
}
.table th {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border-strong);
  padding: var(--space-3) var(--space-4);
  text-align: left;
}
.table td {
  font-size: 0.875rem;
  border-top: 1px solid var(--border);
  padding: var(--space-3) var(--space-4);
  vertical-align: middle;
}
.table tbody tr { transition: background var(--duration-fast) var(--ease); }
.table tbody tr:hover { background: var(--surface-2); }
.table-striped tbody tr:nth-of-type(odd) { background: var(--bg-elevated); }
.table-responsive { overflow-x: auto; }

/* ============ BADGES ============ */
.badge {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.7rem;
  letter-spacing: 0.03em;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
}
.bg-primary { background: var(--primary) !important; color: var(--primary-text) !important; }
.bg-success { background: var(--success) !important; color: var(--text-inverse) !important; }
.bg-danger { background: var(--danger) !important; color: var(--text-inverse) !important; }
.bg-warning { background: var(--warning) !important; color: var(--text-inverse) !important; }
.bg-secondary { background: var(--text-muted) !important; color: var(--text-primary) !important; }
.bg-light { background: var(--surface-2) !important; color: var(--text-secondary) !important; border: 1px solid var(--border); }

/* ============ ALERTS ============ */
.alert {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-size: 0.875rem;
  background: var(--surface-1);
}
.alert-success { border-left: 4px solid var(--success); background: var(--success-light); color: #064e3b; }
.alert-danger { border-left: 4px solid var(--danger); background: var(--danger-light); color: #7f1d1d; }
.alert-warning { border-left: 4px solid var(--warning); background: var(--warning-light); color: #78350f; }
.alert-info { border-left: 4px solid var(--primary); background: var(--primary-light); color: #134e4a; }

/* ============ DROPDOWN — solid surface (not glass) ============ */
.dropdown-menu {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-1);
  margin-top: var(--space-1);
}
.dropdown-item {
  font-size: 0.875rem;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.dropdown-item:hover { background: var(--primary-light); color: var(--text-primary); }
.dropdown-divider { border-color: var(--border); margin: var(--space-2) 0; }

/* Dropdown header */
.dropdown-header {
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  padding: var(--space-3);
  margin: calc(var(--space-1) * -1) calc(var(--space-1) * -1) var(--space-1);
}

/* ============ MODAL — glass overlay ============ */
.modal-content {
  background: transparent;
  border: none;
  box-shadow: none;
}
.modal-content .glass-overlay { padding: 0; }
.modal-header, .modal-footer { border-color: var(--border); background: transparent; }

/* ============ ATTACHMENTS ============ */
.attachment-thumb {
  display: block;
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: var(--radius-md);
  background: var(--surface-2);
  border: 1px solid var(--border);
  transition: transform var(--duration-fast) var(--ease), box-shadow var(--duration-fast) var(--ease);
}
.attachment-thumb:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-md);
}

/* Preview grid (for selected files before upload) */
.preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: var(--space-2);
  margin-top: var(--space-2);
}
.preview-item {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--surface-2);
  border: 1px solid var(--border);
  max-width: 100%;
}
.preview-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.preview-remove {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(0,0,0,0.6);
  color: white;
  border: none;
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--duration-fast) var(--ease);
}
.preview-item:hover .preview-remove {
  opacity: 1;
}

/* Preview actions */
#preview-actions {
  flex-wrap: wrap;
}

/* Dropzone - high contrast */
.dropzone {
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  text-align: center;
  cursor: pointer;
  background: var(--surface-2);
  transition: border-color var(--duration-fast) var(--ease), background var(--duration-fast) var(--ease);
}
.dropzone:hover,
.dropzone.is-dragover {
  border-color: var(--primary);
  background: var(--primary-light);
}
.dropzone .fw-semibold {
  color: var(--text-primary);
  font-size: 1rem;
}
.dropzone .small.text-muted {
  color: var(--text-secondary) !important;
}

/* Ensure buttons are clickable */
#preview-actions {
  position: relative;
  z-index: 10;
}
#preview-actions .btn {
  pointer-events: auto;
}

/* ============ COMPLAINT DETAIL READABILITY ============ */
#complaint-detail .card {
  color: var(--text-primary);
}
#complaint-detail .card-body {
  color: var(--text-primary);
}
#complaint-detail p {
  color: var(--text-primary);
  line-height: 1.7;
}
#complaint-detail dl dt {
  color: var(--text-secondary);
  font-weight: 500;
}
#complaint-detail dl dd {
  color: var(--text-primary);
}
#complaint-detail .text-muted {
  color: var(--text-muted) !important;
}

/* Timeline readability */
.timeline-item {
  color: var(--text-primary);
}
.timeline-item .small.text-muted {
  color: var(--text-secondary) !important;
}
.timeline-item strong {
  color: var(--text-primary);
}
.timeline-item > div:last-child {
  color: var(--text-primary);
}

/* Activity card */
#timeline .card-body {
  color: var(--text-primary);
}

/* Comment form */
#comment-form .form-control {
  color: var(--text-primary);
}

/* Loading states - ensure readable */
#complaint-detail p.text-secondary,
#timeline p.text-secondary {
  color: var(--text-secondary) !important;
}

/* Chart containers - align to bottom */
.chart-wrap {
  position: relative;
  height: 280px;
  width: 100%;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}
.chart-wrap canvas {
  width: 100% !important;
  height: 100% !important;
  max-height: 280px;
}

/* ============ TIMELINE ============ */
.timeline-item {
  border-left: 2px solid var(--border);
  padding-left: var(--space-3);
  margin-left: var(--space-1);
}
.timeline-item:last-child { border-left-color: transparent; }

/* ============ USER AVATAR & ROLE BADGES ============ */
.user-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.875rem;
  flex-shrink: 0;
  box-shadow: 0 0 0 2px var(--bg), 0 2px 8px rgba(46,196,182,0.15);
}
.user-avatar.lg {
  width: 44px;
  height: 44px;
  font-size: 1.125rem;
}

.role-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.1875rem 0.5rem;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.6875rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  border-radius: var(--radius-xl);
  white-space: nowrap;
}
.role-student { background: var(--primary-light); color: var(--primary); }
.role-staff { background: rgba(59,130,246,0.15); color: var(--accent-blue); }
.role-admin { background: rgba(239,68,68,0.15); color: var(--danger); }
.role-viewer { background: var(--surface-2); color: var(--text-secondary); border: 1px solid var(--border); }

/* Dropdown header improvements */
.dropdown-header {
  background: transparent;
  border-bottom: 1px solid var(--border);
  padding: var(--space-3);
}
.dropdown-header .user-avatar {
  box-shadow: 0 0 0 2px var(--surface-1), 0 4px 16px rgba(46,196,182,0.2);
}

/* Dropdown item with icon */
.dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* ============ UTILITIES ============ */
.page-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.5rem;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin: 0;
}
.text-muted { color: var(--text-muted) !important; }
.text-secondary { color: var(--text-secondary) !important; }
.fw-semibold { font-weight: 600; }

/* ============ MOBILE ============ */
@media (max-width: 768px) {
  .container { padding-left: var(--space-3); padding-right: var(--space-3); }
  .card-body { padding: var(--space-3); }
  .card-header { padding: var(--space-2) var(--space-3); }
  .btn { width: 100%; margin-bottom: var(--space-2); }
  .btn-sm { padding: var(--space-2) var(--space-3); }
  .table th, .table td { padding: var(--space-2) var(--space-3); font-size: 0.8125rem; }
  .navbar-nav { gap: var(--space-1); }
}

/* ============ REDUCED MOTION ============ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
  body::before { animation: none; }
}