/* ECE EduHub - Main Stylesheet */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');
@import url('https://cdn.jsdelivr.net/npm/remixicon@4.1.0/fonts/remixicon.css');

:root {
  --primary: #000000;
  --primary-light: #333333;
  --primary-dark: #000000;
  --accent: #000000;
  --accent-light: #444444;
  --accent-dark: #000000;
  --secondary: #555555;
  --bg: #F5F5F7;
  --card: #FFFFFF;
  --text: #1D1D1F;
  --text-light: #86868B;
  --border: #D2D2D7;
  --success: #34C759;
  --error: #FF3B30;
  --warning: #FF9500;
  --info: #007AFF;
  --radius: 16px;
  --radius-sm: 12px;
  --shadow: 0 2px 12px rgba(0,0,0,.06);
  --shadow-lg: 0 8px 30px rgba(0,0,0,.1);
  --transition: .3s cubic-bezier(.4,0,.2,1);
  --sidebar-w: 260px;
  --header-h: 64px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: 'Inter', system-ui, sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; min-height: 100vh; }
a { color: var(--accent-dark); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent); }
img { max-width: 100%; display: block; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
h1,h2,h3,h4 { line-height: 1.3; color: var(--primary); }

/* ── Utility ── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.gap-3 { gap: 24px; }
.text-center { text-align: center; }
.hidden { display: none !important; }
.w-full { width: 100%; }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 24px; border-radius: var(--radius-sm); font-weight: 600;
  font-size: .9rem; border: none; cursor: pointer; transition: all var(--transition);
  text-decoration: none; white-space: nowrap;
}
.btn:active { transform: scale(.97); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-light); color: #fff; }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--accent-light); color: #fff; }
.btn-outline { background: transparent; border: 2px solid var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-danger { background: var(--error); color: #fff; }
.btn-danger:hover { background: #dc2626; }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #059669; }
.btn-sm { padding: 6px 14px; font-size: .8rem; }
.btn-icon { width: 36px; height: 36px; padding: 0; border-radius: 50%; }

/* ── Cards ── */
.card {
  background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow);
  border: 1px solid var(--border); overflow: hidden; transition: all var(--transition);
}
.card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.card-body { padding: 20px; }
.card-header { padding: 16px 20px; border-bottom: 1px solid var(--border); font-weight: 600; }

/* ── Forms ── */
.form-group { margin-bottom: 18px; }
.form-group label { display: block; margin-bottom: 6px; font-weight: 500; font-size: .9rem; color: var(--text); }
.form-control {
  width: 100%; padding: 10px 14px; border: 2px solid var(--border); border-radius: var(--radius-sm);
  font-size: .95rem; transition: border-color var(--transition); background: #fff; color: var(--text);
}
.form-control:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(245,166,35,.15); }
.form-control.error { border-color: var(--error); }
.error-text { color: var(--error); font-size: .8rem; margin-top: 4px; }
select.form-control { appearance: none; background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236B7280' stroke-width='2' fill='none'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 40px; }
textarea.form-control { resize: vertical; min-height: 100px; }
.checkbox-group { display: flex; flex-wrap: wrap; gap: 10px; }
.checkbox-item { display: flex; align-items: center; gap: 6px; font-size: .9rem; }
.checkbox-item input[type="checkbox"] { width: 18px; height: 18px; accent-color: var(--accent); }

/* ── Auth Pages ── */
.auth-wrapper {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: #000;
  padding: 20px; position: relative; overflow: hidden;
}
.auth-wrapper::before {
  content: ''; position: absolute; width: 400px; height: 400px; border-radius: 50%;
  background: rgba(245,166,35,.08); top: -100px; right: -100px;
}
.auth-wrapper::after {
  content: ''; position: absolute; width: 300px; height: 300px; border-radius: 50%;
  background: rgba(245,166,35,.05); bottom: -80px; left: -80px;
}
.auth-card {
  background: #fff; border-radius: 16px; padding: 40px; width: 100%; max-width: 460px;
  box-shadow: 0 20px 60px rgba(0,0,0,.3); position: relative; z-index: 1;
  animation: fadeUp .5s ease;
}
@keyframes fadeUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
.auth-logo { text-align: center; margin-bottom: 24px; }
.auth-logo h1 { font-size: 1.5rem; color: var(--primary); margin-top: 8px; }
.auth-logo .subtitle { color: var(--text-light); font-size: .85rem; }
.role-tabs { display: flex; gap: 4px; background: var(--bg); border-radius: var(--radius-sm); padding: 4px; margin-bottom: 24px; }
.role-tab {
  flex: 1; padding: 10px; text-align: center; border-radius: 6px; cursor: pointer;
  font-weight: 600; font-size: .85rem; transition: all var(--transition); border: none; background: none; color: var(--text-light);
}
.role-tab.active { background: var(--primary); color: #fff; box-shadow: 0 2px 8px rgba(10,31,68,.2); }

/* ── Layout: Sidebar + Main ── */
.app-layout { display: flex; min-height: 100vh; }
.sidebar {
  width: var(--sidebar-w); background: #000000; color: #fff; position: fixed;
  top: 0; left: 0; bottom: 0; z-index: 100; display: flex; flex-direction: column;
  transition: transform var(--transition);
}
.sidebar-header { padding: 20px; border-bottom: 1px solid rgba(255,255,255,.1); }
.sidebar-header h2 { font-size: 1.1rem; color: #FFFFFF; }
.sidebar-header .role-badge { font-size: .75rem; background: #FFFFFF; color: #000; padding: 3px 12px; border-radius: 20px; font-weight: 700; display: inline-block; margin-top: 4px; }
.sidebar-nav { flex: 1; padding: 12px 0; overflow-y: auto; }
.sidebar-nav a, .sidebar-nav button {
  display: flex; align-items: center; gap: 12px; padding: 12px 20px; color: rgba(255,255,255,.7);
  font-size: .9rem; transition: all var(--transition); border: none; background: none; width: 100%;
  text-align: left; cursor: pointer; text-decoration: none;
}
.sidebar-nav a:hover, .sidebar-nav button:hover, .sidebar-nav a.active { color: #fff; background: rgba(255,255,255,.08); }
.sidebar-nav a.active { border-right: 3px solid #FFFFFF; color: #FFFFFF; font-weight: 600; }
.sidebar-nav .nav-icon { width: 20px; text-align: center; }
.sidebar-footer { padding: 16px 20px; border-top: 1px solid rgba(255,255,255,.1); }

.main-content { flex: 1; margin-left: var(--sidebar-w); }
.topbar {
  height: var(--header-h); background: #fff; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between; padding: 0 24px;
  position: sticky; top: 0; z-index: 50;
}
.topbar-left { display: flex; align-items: center; gap: 16px; }
.menu-toggle { display: none; background: none; border: none; font-size: 1.5rem; cursor: pointer; color: #000; }
.topbar-title { font-size: 1.1rem; font-weight: 700; color: #1D1D1F; }
.topbar-right { display: flex; align-items: center; gap: 12px; }
.notification-bell { position: relative; cursor: pointer; font-size: 1.2rem; }
.notification-badge {
  position: absolute; top: -6px; right: -6px; background: var(--error); color: #fff;
  font-size: .65rem; width: 18px; height: 18px; border-radius: 50%; display: flex;
  align-items: center; justify-content: center; font-weight: 700;
}
.page-content { padding: 24px; }
.page-header { margin-bottom: 24px; }
.page-header h1 { font-size: 1.5rem; margin-bottom: 4px; }
.page-header p { color: var(--text-light); font-size: .9rem; }

/* ── Stats Cards ── */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card {
  background: #fff; padding: 20px; border-radius: var(--radius); border: 1px solid var(--border);
  display: flex; align-items: center; gap: 16px;
}
.stat-icon { width: 48px; height: 48px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 1.3rem; }
.stat-icon.blue { background: rgba(59,130,246,.1); color: var(--info); }
.stat-icon.green { background: rgba(16,185,129,.1); color: var(--success); }
.stat-icon.amber { background: rgba(245,166,35,.1); color: var(--accent); }
.stat-icon.red { background: rgba(239,68,68,.1); color: var(--error); }
.stat-info h3 { font-size: 1.5rem; color: var(--text); }
.stat-info p { font-size: .8rem; color: var(--text-light); }

/* ── Data Tables ── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--border); font-size: .9rem; }
th { background: var(--bg); font-weight: 600; color: var(--primary); white-space: nowrap; }
tr:hover td { background: rgba(245,166,35,.03); }

/* ── Badges ── */
.badge {
  display: inline-flex; align-items: center; padding: 3px 10px; border-radius: 20px;
  font-size: .75rem; font-weight: 600;
}
.badge-success { background: rgba(16,185,129,.1); color: #059669; }
.badge-warning { background: rgba(245,166,35,.1); color: #D97706; }
.badge-danger { background: rgba(239,68,68,.1); color: #DC2626; }
.badge-info { background: rgba(59,130,246,.1); color: #2563EB; }
.badge-primary { background: rgba(10,31,68,.1); color: var(--primary); }

/* ── Modal ── */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.5); z-index: 1000; display: flex;
  align-items: center; justify-content: center; padding: 20px; opacity: 0;
  visibility: hidden; transition: all var(--transition);
}
.modal-overlay.active { opacity: 1; visibility: visible; }
.modal {
  background: #fff; border-radius: 16px; width: 100%; max-width: 600px; max-height: 90vh;
  overflow-y: auto; box-shadow: 0 20px 60px rgba(0,0,0,.2);
  transform: translateY(20px); transition: transform var(--transition);
}
.modal-overlay.active .modal { transform: translateY(0); }
.modal-header { padding: 20px 24px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.modal-header h3 { font-size: 1.1rem; }
.modal-close { background: none; border: none; font-size: 1.5rem; cursor: pointer; color: var(--text-light); }
.modal-body { padding: 24px; }
.modal-footer { padding: 16px 24px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 10px; }

/* ── Toast ── */
.toast-container { position: fixed; top: 20px; right: 20px; z-index: 9999; display: flex; flex-direction: column; gap: 8px; }
.toast {
  padding: 14px 20px; border-radius: var(--radius-sm); color: #fff; font-size: .9rem;
  font-weight: 500; min-width: 280px; box-shadow: var(--shadow-lg);
  animation: slideIn .3s ease; display: flex; align-items: center; gap: 10px;
}
.toast-success { background: var(--success); }
.toast-error { background: var(--error); }
.toast-warning { background: var(--warning); }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* ── Accordion ── */
.accordion { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.accordion-item { border-bottom: 1px solid var(--border); }
.accordion-item:last-child { border-bottom: none; }
.accordion-header {
  padding: 14px 20px; background: #fff; cursor: pointer; display: flex;
  align-items: center; justify-content: space-between; font-weight: 600; transition: background var(--transition);
}
.accordion-header:hover { background: var(--bg); }
.accordion-header .arrow { transition: transform var(--transition); }
.accordion-item.open .accordion-header .arrow { transform: rotate(180deg); }
.accordion-body { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.accordion-item.open .accordion-body { max-height: 2000px; }
.accordion-content { padding: 16px 20px; background: var(--bg); }

/* ── Tabs ── */
.tabs { display: flex; border-bottom: 2px solid var(--border); margin-bottom: 20px; overflow-x: auto; }
.tab-btn {
  padding: 10px 20px; border: none; background: none; font-weight: 600; color: var(--text-light);
  cursor: pointer; position: relative; white-space: nowrap; transition: color var(--transition);
}
.tab-btn.active { color: var(--primary); }
.tab-btn.active::after { content: ''; position: absolute; bottom: -2px; left: 0; right: 0; height: 2px; background: var(--accent); }
.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fadeUp .3s ease; }

/* ── Progress Bar ── */
.progress-bar { width: 100%; height: 8px; background: var(--border); border-radius: 4px; overflow: hidden; }
.progress-fill { height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-dark)); border-radius: 4px; transition: width .3s; }

/* ── Subject Cards Grid ── */
.subjects-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px,1fr)); gap: 16px; }
.subject-card { position: relative; }
.subject-card .card-body { padding: 24px; }
.subject-card .subject-type { font-size: .7rem; text-transform: uppercase; letter-spacing: 1px; }
.subject-card h3 { font-size: 1rem; margin: 8px 0; }
.subject-card .updated-badge {
  position: absolute; top: 12px; right: 12px; background: var(--accent); color: var(--primary);
  padding: 2px 8px; border-radius: 4px; font-size: .7rem; font-weight: 700;
}

/* ── Comment Section ── */
.comment-list { display: flex; flex-direction: column; gap: 12px; }
.comment-item { padding: 12px; border: 1px solid var(--border); border-radius: var(--radius-sm); }
.comment-item.pinned { border-color: var(--accent); background: rgba(245,166,35,.03); }
.comment-meta { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; font-size: .8rem; }
.comment-meta .name { font-weight: 600; }
.comment-meta .role { font-size: .7rem; }
.comment-meta .time { color: var(--text-light); margin-left: auto; }
.comment-text { font-size: .9rem; line-height: 1.5; }
.comment-actions { display: flex; gap: 8px; margin-top: 8px; }

/* ── Waiting Screen ── */
.waiting-screen {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #fff; text-align: center; padding: 40px;
}
.waiting-screen h2 { color: var(--accent); margin-bottom: 16px; }
.waiting-screen p { max-width: 500px; line-height: 1.8; opacity: .9; }
.pulse { animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .5; } }

/* ── File Upload ── */
.file-upload-area {
  border: 2px dashed var(--border); border-radius: var(--radius); padding: 32px;
  text-align: center; cursor: pointer; transition: all var(--transition);
}
.file-upload-area:hover { border-color: var(--accent); background: rgba(245,166,35,.03); }
.file-upload-area.dragover { border-color: var(--accent); background: rgba(245,166,35,.08); }
.file-upload-area p { color: var(--text-light); font-size: .9rem; }

/* ── Quiz ── */
.quiz-question { padding: 24px; background: #fff; border-radius: var(--radius); border: 1px solid var(--border); margin-bottom: 16px; }
.quiz-question h4 { margin-bottom: 16px; }
.quiz-option {
  display: flex; align-items: center; gap: 12px; padding: 12px 16px;
  border: 2px solid var(--border); border-radius: var(--radius-sm);
  margin-bottom: 8px; cursor: pointer; transition: all var(--transition);
}
.quiz-option:hover { border-color: #999; background: rgba(0,0,0,.015); }
.quiz-option .radio-dot {
  width: 20px; height: 20px; border-radius: 50%; border: 2px solid var(--border);
  flex-shrink: 0; display: flex; align-items: center; justify-content: center;
  transition: all var(--transition);
}
.quiz-option .radio-dot::after {
  content: ''; width: 10px; height: 10px; border-radius: 50%;
  background: transparent; transition: all var(--transition);
}
.quiz-option.selected { border-color: #007AFF; background: rgba(0,122,255,.04); }
.quiz-option.selected .radio-dot { border-color: #007AFF; }
.quiz-option.selected .radio-dot::after { background: #007AFF; }
.quiz-option.correct { border-color: var(--success); background: rgba(52,199,89,.05); }
.quiz-option.correct .radio-dot { border-color: var(--success); }
.quiz-option.correct .radio-dot::after { background: var(--success); }
.quiz-option.wrong { border-color: var(--error); background: rgba(255,59,48,.05); }
.quiz-option.wrong .radio-dot { border-color: var(--error); }
.quiz-option.wrong .radio-dot::after { background: var(--error); }
.quiz-timer { position: sticky; top: var(--header-h); background: #fff; padding: 12px; border-radius: var(--radius-sm); text-align: center; font-size: 1.2rem; font-weight: 700; z-index: 10; border: 1px solid var(--border); }

/* ── Subtopic Buttons ── */
.subtopic-btn {
  display: flex; align-items: center; gap: 10px; padding: 12px 16px;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--card); text-decoration: none; color: var(--text);
  font-size: .9rem; font-weight: 500; cursor: pointer;
  transition: all var(--transition); margin-bottom: 8px; width: 100%;
}
.subtopic-btn:hover { border-color: #000; background: rgba(0,0,0,.02); transform: translateX(4px); }
.subtopic-btn .subtopic-icon { color: var(--text-light); font-size: 1.1rem; }
.subtopic-btn .subtopic-arrow { margin-left: auto; color: var(--text-light); transition: transform .2s; }
.subtopic-btn:hover .subtopic-arrow { transform: translateX(3px); }

/* ── Search Bar ── */
.search-bar { position: relative; margin-bottom: 16px; }
.search-bar input {
  width: 100%; padding: 12px 16px 12px 42px; border: 1px solid var(--border);
  border-radius: var(--radius); font-size: .9rem; background: var(--card);
  transition: border-color var(--transition);
}
.search-bar input:focus { outline: none; border-color: #000; }
.search-bar .search-icon {
  position: absolute; left: 14px; top: 50%; transform: translateY(-50%);
  color: var(--text-light); font-size: 1.1rem; pointer-events: none;
}

/* ── Loader ── */
.loader { display: flex; align-items: center; justify-content: center; padding: 40px; }
.spinner { width: 36px; height: 36px; border: 3px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin .6s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .4; } }

/* ── Mobile Responsive ── */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .menu-toggle { display: block; }
  .page-content { padding: 16px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .subjects-grid { grid-template-columns: 1fr; }
  .auth-card { padding: 28px 20px; }
  .modal { max-width: 100%; margin: 10px; }
  .topbar-title { font-size: .95rem; }
  th, td { padding: 8px 10px; font-size: .8rem; }
  .btn { padding: 8px 16px; font-size: .85rem; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .role-tabs { flex-direction: column; }
  .tabs { gap: 0; }
  .tab-btn { padding: 8px 12px; font-size: .8rem; }
}

/* ── Mobile overlay ── */
.sidebar-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.4); z-index: 99;
  opacity: 0; visibility: hidden; transition: all var(--transition);
}
.sidebar-overlay.active { opacity: 1; visibility: visible; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(10,31,68,.2); border-radius: 3px; }
.sidebar::-webkit-scrollbar-thumb { background: rgba(255,255,255,.2); }

/* ── Print ── */
@media print { .sidebar, .topbar, .menu-toggle { display: none !important; } .main-content { margin-left: 0 !important; } }

/* ── Video Player Grid ── */
.video-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
@media (max-width: 640px) { .video-grid { grid-template-columns: 1fr; } }
.video-player-card { background: var(--card); border-radius: var(--radius); border: 1px solid var(--border); overflow: hidden; transition: all var(--transition); }
.video-player-card:hover { box-shadow: var(--shadow-lg); }
.video-player-card.expanded { grid-column: 1 / -1; }
.video-player-compact { position: relative; cursor: pointer; background: #000; border-radius: var(--radius) var(--radius) 0 0; overflow: hidden; }
.video-player-compact video, .video-player-compact iframe { width: 100%; aspect-ratio: 16/9; display: block; border: 0; }
.video-player-compact .expand-hint { position: absolute; top: 8px; right: 8px; background: rgba(0,0,0,.6); color: #fff; font-size: .7rem; padding: 3px 8px; border-radius: 4px; opacity: 0; transition: opacity .3s; pointer-events: none; }
.video-player-compact:hover .expand-hint { opacity: 1; }
.video-player-info { padding: 12px 14px; }
.video-player-info h4 { font-size: .9rem; margin: 0 0 4px; color: var(--text); }
.video-player-info .meta { font-size: .75rem; color: var(--text-light); }
.video-player-actions { padding: 0 14px 12px; }

/* ── Upload Progress (Two-Stage) ── */
.upload-stage {
  display: none; margin-top: 12px; padding: 12px; background: var(--bg);
  border-radius: var(--radius-sm); border: 1px solid var(--border);
}
.upload-stage.active { display: block; }
.upload-stage-label {
  font-size: .82rem; font-weight: 600; color: var(--text);
  display: flex; align-items: center; gap: 6px; margin-bottom: 8px;
}
.upload-stage-label i { font-size: 1rem; }
.upload-stage .progress-bar { display: block; margin-top: 4px; }
.upload-stage .progress-pct {
  font-size: .75rem; color: var(--text-light); text-align: right; margin-top: 4px;
}

/* ── Quiz Option Builder ── */
.quiz-option-builder { transition: all var(--transition); }
.quiz-option-builder:hover { border-color: #999 !important; background: rgba(0,0,0,.015); }

/* ── 3-dot Menu ── */
.dot-menu { position: relative; display: inline-block; }
.dot-menu-btn { background: none; border: none; cursor: pointer; padding: 4px 8px; font-size: 1.2rem; color: var(--text-light); border-radius: 6px; transition: all var(--transition); }
.dot-menu-btn:hover { background: var(--bg); color: var(--text); }
.dot-menu-dropdown { position: absolute; right: 0; top: 100%; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-sm); box-shadow: var(--shadow-lg); min-width: 140px; z-index: 50; display: none; }
.dot-menu.open .dot-menu-dropdown { display: block; animation: fadeUp .2s ease; }
.dot-menu-dropdown button { display: block; width: 100%; padding: 8px 14px; border: none; background: none; text-align: left; font-size: .85rem; cursor: pointer; transition: background var(--transition); }
.dot-menu-dropdown button:hover { background: var(--bg); }
.dot-menu-dropdown button.danger { color: var(--error); }

/* ── Enhanced Auth (Apple-style) ── */
.auth-wrapper { background: #000; }
.auth-wrapper::before { background: rgba(255,255,255,.03); }
.auth-wrapper::after { background: rgba(255,255,255,.02); }
.auth-card { border: 1px solid var(--border); }
.role-tab.active { background: #000; color: #fff; }

/* ── Quote Hero ── */
.quote-hero { background: #000; color: #fff; border-radius: var(--radius); padding: 32px 28px; margin-bottom: 24px; position: relative; overflow: hidden; }
.quote-hero::before { content: '\201C'; position: absolute; top: -10px; left: 16px; font-size: 6rem; color: rgba(255,255,255,.06); font-family: Georgia, serif; line-height: 1; }
.quote-hero .quote-text { font-size: 1.05rem; line-height: 1.7; font-weight: 300; letter-spacing: .01em; position: relative; z-index: 1; }
.quote-hero .quote-text em { font-style: normal; opacity: .5; font-size: .85rem; display: block; margin-top: 12px; }
@media (max-width: 640px) { .quote-hero { padding: 24px 20px; } .quote-hero .quote-text { font-size: .95rem; } }

/* ── Premium cards ── */
.stat-card { transition: all var(--transition); border: 1px solid var(--border); }
.stat-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }

/* ── Comment styles ── */
.comment-item { padding: 12px 0; border-bottom: 1px solid var(--border); }
.comment-item.pinned { background: rgba(0,0,0,.02); margin: 0 -14px; padding: 12px 14px; border-radius: 8px; }
.comment-meta { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 4px; }
.comment-meta .name { font-weight: 600; font-size: .9rem; }
.comment-meta .time { font-size: .75rem; color: var(--text-light); }
.comment-text { font-size: .9rem; line-height: 1.5; }
.comment-actions { margin-top: 6px; }

/* ════════════════════════════════════════
   PROFILE PAGES
   ════════════════════════════════════════ */

/* ── Sidebar nav divider ── */
.sidebar-nav-divider { height: 1px; background: rgba(255,255,255,.08); margin: 8px 16px; }

/* ── Topbar profile link ── */
.topbar-profile-link { display: flex; align-items: center; gap: 6px; text-decoration: none; padding: 4px 8px; border-radius: 8px; transition: background var(--transition); }
.topbar-profile-link:hover { background: var(--bg); }

/* ── Profile Page Layout ── */
.profile-page { max-width: 800px; margin: 0 auto; }
.profile-sections { display: flex; flex-direction: column; gap: 20px; }
.profile-section .card-header { display: flex; align-items: center; gap: 8px; }
.profile-section .card-header i { color: var(--text-light); }

/* ── Profile Hero Card ── */
.profile-hero-card { margin-bottom: 24px; }
.profile-hero-card:hover { transform: none; }
.profile-hero-inner { display: flex; align-items: center; gap: 24px; padding: 28px 32px; }

/* ── Profile Avatar ── */
.profile-avatar { position: relative; width: 100px; height: 100px; border-radius: 50%; overflow: visible; flex-shrink: 0; }
.profile-avatar img { width: 100px; height: 100px; border-radius: 50%; object-fit: cover; border: 3px solid var(--border); }
.avatar-placeholder { width: 100px; height: 100px; border-radius: 50%; background: var(--bg); border: 3px solid var(--border); display: flex; align-items: center; justify-content: center; font-size: 2.5rem; color: var(--text-light); }
.avatar-upload-btn {
  position: absolute; bottom: 0; right: 0; width: 32px; height: 32px;
  background: var(--primary); color: #fff; border-radius: 50%; display: flex;
  align-items: center; justify-content: center; cursor: pointer; font-size: .9rem;
  box-shadow: 0 2px 8px rgba(0,0,0,.2); transition: all var(--transition); z-index: 2;
}
.avatar-upload-btn:hover { transform: scale(1.1); background: var(--primary-light); }
.view-only .avatar-upload-btn { display: none; }

/* ── Profile Name ── */
.profile-name-section h1 { font-size: 1.5rem; margin-bottom: 4px; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.prefix-text { color: var(--text-light); font-weight: 400; }
.profile-meta { color: var(--text-light); font-size: .9rem; display: flex; align-items: center; gap: 6px; flex-wrap: wrap; margin-top: 4px; }
.profile-name-display { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }

/* ── Name Editor ── */
.name-editor-row { display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap; }
.name-editor-actions { display: flex; gap: 8px; margin-top: 12px; }

/* ── Tags Input ── */
.tags-input-wrapper { border: 2px solid var(--border); border-radius: var(--radius-sm); padding: 8px 12px; background: #fff; transition: border-color var(--transition); cursor: text; }
.tags-input-wrapper:focus-within { border-color: var(--primary); }
.tags-container { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 6px; }
.tags-container:empty { margin-bottom: 0; }
.tag-chip {
  display: inline-flex; align-items: center; gap: 4px; padding: 4px 12px;
  background: #000; color: #fff; border-radius: 20px; font-size: .8rem; font-weight: 500;
  animation: fadeUp .2s ease;
}
.tag-chip.view-tag { background: var(--bg); color: var(--text); border: 1px solid var(--border); }
.tag-remove { background: none; border: none; color: rgba(255,255,255,.7); cursor: pointer; font-size: 1rem; padding: 0 2px; line-height: 1; }
.tag-chip.view-tag .tag-remove { display: none; }
.tags-input { border: none; outline: none; font-size: .9rem; min-width: 160px; padding: 4px 0; background: transparent; color: var(--text); }
.tags-display { display: flex; flex-wrap: wrap; gap: 8px; }

/* ── Publications ── */
.publication-card { padding: 16px; border: 1px solid var(--border); border-radius: var(--radius-sm); margin-bottom: 12px; transition: all var(--transition); }
.publication-card:hover { border-color: #999; }
.publication-card:last-child { margin-bottom: 0; }
.pub-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
.pub-header h4 { font-size: .95rem; margin-bottom: 6px; }
.pub-meta { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.pub-year { font-size: .8rem; color: var(--text-light); font-weight: 500; }
.pub-desc { font-size: .85rem; color: var(--text-light); margin-top: 8px; line-height: 1.5; }
.pub-pdf-link { display: inline-flex; align-items: center; gap: 6px; margin-top: 10px; font-size: .85rem; color: var(--info); font-weight: 500; padding: 4px 12px; background: rgba(0,122,255,.06); border-radius: 6px; transition: all var(--transition); }
.pub-pdf-link:hover { background: rgba(0,122,255,.12); color: var(--info); }

/* ── Subjects Taught Grid ── */
.subjects-taught-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 10px; }
.subject-taught-chip { padding: 12px 16px; background: var(--bg); border-radius: var(--radius-sm); border: 1px solid var(--border); }
.stc-name { font-weight: 600; font-size: .9rem; margin-bottom: 2px; }
.stc-meta { font-size: .75rem; color: var(--text-light); }

/* ── Internships ── */
.internship-card { padding: 16px; border: 1px solid var(--border); border-radius: var(--radius-sm); margin-bottom: 12px; transition: all var(--transition); }
.internship-card:hover { border-color: #999; }
.internship-card:last-child { margin-bottom: 0; }
.intern-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
.intern-header h4 { font-size: .95rem; margin-bottom: 4px; }
.intern-meta { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.intern-duration { font-size: .8rem; color: var(--text-light); display: flex; align-items: center; gap: 4px; }
.intern-desc { font-size: .85rem; color: var(--text-light); margin-top: 8px; line-height: 1.5; }

/* ── Achievements List ── */
.achievements-list { display: flex; flex-direction: column; gap: 12px; }
.achievement-item { display: flex; gap: 12px; align-items: flex-start; padding: 12px; border-radius: var(--radius-sm); transition: background var(--transition); }
.achievement-item:hover { background: var(--bg); }
.ach-icon { width: 40px; height: 40px; border-radius: 10px; background: rgba(245,166,35,.1); color: #D97706; display: flex; align-items: center; justify-content: center; font-size: 1.2rem; flex-shrink: 0; }

/* ── Empty States ── */
.empty-state { text-align: center; padding: 32px 20px; color: var(--text-light); font-size: .9rem; }
.empty-state i { font-size: 2rem; margin-bottom: 8px; display: block; opacity: .4; }

/* ════════════════════════════════════════
   MESSAGING SYSTEM
   ════════════════════════════════════════ */

.messaging-layout { display: flex; height: calc(100vh - var(--header-h)); margin: -24px; background: var(--bg); }

/* ── Sidebar ── */
.msg-sidebar { width: 340px; background: #fff; border-right: 1px solid var(--border); display: flex; flex-direction: column; flex-shrink: 0; }
.msg-sidebar-header { padding: 20px; border-bottom: 1px solid var(--border); }
.msg-sidebar-header h3 { font-size: 1.1rem; display: flex; align-items: center; gap: 8px; }
.msg-search { padding: 12px 16px; border-bottom: 1px solid var(--border); position: relative; }
.msg-conversations { flex: 1; overflow-y: auto; }

/* ── Conversation Items ── */
.msg-convo-item { display: flex; align-items: center; gap: 12px; padding: 14px 16px; cursor: pointer; transition: all var(--transition); border-bottom: 1px solid rgba(0,0,0,.04); }
.msg-convo-item:hover { background: var(--bg); }
.msg-convo-item.active { background: rgba(0,0,0,.04); border-left: 3px solid var(--primary); }
.msg-convo-item.has-unread { background: rgba(0,122,255,.03); }
.msg-convo-avatar { width: 44px; height: 44px; border-radius: 50%; overflow: hidden; flex-shrink: 0; }
.msg-convo-avatar img { width: 100%; height: 100%; object-fit: cover; }
.avatar-mini { width: 44px; height: 44px; border-radius: 50%; background: var(--bg); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; color: var(--text-light); font-size: .9rem; }
.msg-convo-info { flex: 1; min-width: 0; }
.msg-convo-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 2px; }
.msg-convo-top strong { font-size: .88rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 160px; }
.msg-convo-time { font-size: .7rem; color: var(--text-light); white-space: nowrap; }
.msg-convo-bottom { display: flex; justify-content: space-between; align-items: center; }
.msg-convo-preview { font-size: .8rem; color: var(--text-light); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 180px; }
.msg-unread-badge { min-width: 20px; height: 20px; border-radius: 10px; background: var(--primary); color: #fff; font-size: .7rem; font-weight: 700; display: flex; align-items: center; justify-content: center; padding: 0 6px; }
.msg-no-convos { padding: 40px 20px; text-align: center; color: var(--text-light); }

/* ── Search Results ── */
.search-results { position: absolute; left: 16px; right: 16px; top: 100%; background: #fff; border: 1px solid var(--border); border-radius: 0 0 var(--radius-sm) var(--radius-sm); box-shadow: var(--shadow-lg); z-index: 10; max-height: 300px; overflow-y: auto; }
.search-result-item { display: flex; align-items: center; gap: 10px; padding: 10px 14px; cursor: pointer; transition: background var(--transition); }
.search-result-item:hover { background: var(--bg); }

/* ── Chat Area ── */
.msg-chat { flex: 1; display: flex; flex-direction: column; background: #fff; min-width: 0; }
.msg-empty-state { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; color: var(--text-light); }
.msg-empty-icon { width: 80px; height: 80px; border-radius: 50%; background: var(--bg); display: flex; align-items: center; justify-content: center; font-size: 2rem; margin-bottom: 16px; }
.msg-empty-state h3 { color: var(--text); margin-bottom: 4px; }
.msg-empty-state p { font-size: .9rem; }

/* ── Chat Header ── */
.msg-chat-header { display: flex; align-items: center; gap: 12px; padding: 14px 20px; border-bottom: 1px solid var(--border); background: #fff; }
.msg-chat-user { display: flex; align-items: center; gap: 10px; flex: 1; min-width: 0; }
.msg-chat-avatar { width: 40px; height: 40px; border-radius: 50%; overflow: hidden; flex-shrink: 0; }
.msg-chat-avatar img { width: 100%; height: 100%; object-fit: cover; }
.msg-chat-avatar .avatar-mini { width: 40px; height: 40px; font-size: .8rem; }
.msg-back-btn { display: none; }

/* ── Messages List ── */
.msg-messages { flex: 1; overflow-y: auto; padding: 20px; display: flex; flex-direction: column; gap: 4px; background: #f8f9fa; }
.msg-no-messages { flex: 1; display: flex; align-items: center; justify-content: center; color: var(--text-light); font-size: .9rem; padding: 40px; }

/* ── Date Divider ── */
.msg-date-divider { text-align: center; margin: 12px 0; }
.msg-date-divider span { background: rgba(0,0,0,.06); padding: 4px 14px; border-radius: 12px; font-size: .72rem; color: var(--text-light); font-weight: 500; }

/* ── Message Bubbles ── */
.msg-bubble { max-width: 70%; padding: 10px 14px; border-radius: 16px; font-size: .9rem; line-height: 1.5; position: relative; animation: fadeUp .2s ease; word-break: break-word; }
.msg-bubble.sent { align-self: flex-end; background: #000; color: #fff; border-bottom-right-radius: 4px; }
.msg-bubble.received { align-self: flex-start; background: #fff; color: var(--text); border: 1px solid var(--border); border-bottom-left-radius: 4px; }
.msg-text { margin-bottom: 4px; white-space: pre-wrap; }
.msg-time { font-size: .65rem; opacity: .6; text-align: right; display: flex; align-items: center; justify-content: flex-end; gap: 4px; }
.msg-bubble.sent .msg-time { color: rgba(255,255,255,.6); }

/* ── File Messages ── */
.msg-file { margin-bottom: 4px; }
.msg-file-link { display: flex; align-items: center; gap: 8px; padding: 8px 12px; background: rgba(255,255,255,.1); border-radius: 8px; font-size: .82rem; text-decoration: none; transition: background var(--transition); }
.msg-bubble.sent .msg-file-link { color: #fff; }
.msg-bubble.sent .msg-file-link:hover { background: rgba(255,255,255,.2); }
.msg-bubble.received .msg-file-link { color: var(--text); background: var(--bg); }
.msg-bubble.received .msg-file-link:hover { background: rgba(0,0,0,.06); }
.msg-file-link span { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ── Input Area ── */
.msg-input-area { padding: 12px 20px; border-top: 1px solid var(--border); background: #fff; }
.msg-attachment-preview { display: flex; align-items: center; gap: 8px; padding: 6px 12px; background: var(--bg); border-radius: 8px; font-size: .82rem; margin-bottom: 8px; }
.msg-attachment-preview span { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.msg-input-row { display: flex; align-items: flex-end; gap: 8px; }
.msg-attach-btn { width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; cursor: pointer; color: var(--text-light); font-size: 1.2rem; border-radius: 50%; transition: all var(--transition); flex-shrink: 0; }
.msg-attach-btn:hover { background: var(--bg); color: var(--text); }
#msgTextInput { flex: 1; border: 2px solid var(--border); border-radius: 20px; padding: 10px 16px; font-size: .9rem; resize: none; max-height: 120px; transition: border-color var(--transition); }
#msgTextInput:focus { outline: none; border-color: var(--primary); }
.msg-send-btn { width: 40px; height: 40px; border-radius: 50%; background: var(--primary); color: #fff; border: none; display: flex; align-items: center; justify-content: center; cursor: pointer; font-size: 1rem; transition: all var(--transition); flex-shrink: 0; }
.msg-send-btn:hover { transform: scale(1.05); }
.msg-send-btn:disabled { opacity: .5; cursor: not-allowed; }

/* ── Messaging Responsive ── */
@media (max-width: 768px) {
  .messaging-layout { flex-direction: column; }
  .msg-sidebar { width: 100%; height: 100%; position: absolute; z-index: 5; }
  .msg-sidebar.mobile-hidden { display: none; }
  .msg-chat { display: none; }
  .msg-chat.mobile-visible { display: flex; }
  .msg-back-btn { display: flex; }
  .msg-bubble { max-width: 85%; }
  .profile-hero-inner { flex-direction: column; text-align: center; padding: 24px 20px; }
  .profile-name-display { justify-content: center; }
  .profile-name-section h1 { justify-content: center; }
  .profile-meta { justify-content: center; }
  .name-editor-row { flex-direction: column; }
}

@media (max-width: 480px) {
  .subjects-taught-grid { grid-template-columns: 1fr; }
  .msg-convo-top strong { max-width: 120px; }
}

/* ════════════════════════════════════════
   GRIEVANCE CELL
   ════════════════════════════════════════ */
.grievance-form-card { max-width: 720px; }
.grv-recipients-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px,1fr)); gap: 8px; }
.grv-recipient-item { display: flex; align-items: center; gap: 10px; padding: 10px 14px; border: 2px solid var(--border); border-radius: var(--radius-sm); cursor: pointer; transition: all var(--transition); }
.grv-recipient-item:has(input:checked) { border-color: var(--primary); background: rgba(0,0,0,.02); }
.grv-recipient-item input { margin-right: 4px; accent-color: var(--primary); width: 18px; height: 18px; }
.grv-recipient-info { display: flex; align-items: center; gap: 10px; }
.grv-recipient-info strong { font-size: .88rem; display: block; }
.grv-recipient-info small { font-size: .75rem; color: var(--text-light); display: block; }
.grv-recipient-avatar img { width: 36px; height: 36px; border-radius: 50%; object-fit: cover; }
.grv-recipients-controls { display: flex; gap: 8px; }
.grv-identity-options { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.grv-identity-option { cursor: pointer; }
.grv-identity-option input { display: none; }
.grv-identity-card { padding: 16px; border: 2px solid var(--border); border-radius: var(--radius-sm); display: flex; align-items: center; gap: 12px; transition: all var(--transition); }
.grv-identity-option input:checked + .grv-identity-card { border-color: var(--primary); background: rgba(0,0,0,.02); }
.grv-identity-card i { font-size: 1.4rem; flex-shrink: 0; }
.grv-identity-card strong { font-size: .88rem; display: block; margin-bottom: 2px; }
.grv-identity-card p { font-size: .78rem; color: var(--text-light); margin: 0; }
.grv-confirm-icon { width: 64px; height: 64px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.8rem; margin: 0 auto; }
.grv-confirm-icon.grv-anon { background: rgba(0,0,0,.06); color: var(--text); }
.grv-confirm-icon.grv-ident { background: rgba(0,122,255,.08); color: var(--info); }

/* Grievance Inbox */
.grv-inbox-item { display: flex; align-items: flex-start; padding: 16px 20px; background: #fff; border: 1px solid var(--border); border-radius: var(--radius-sm); margin-bottom: 8px; cursor: pointer; transition: all var(--transition); }
.grv-inbox-item:hover { border-color: #999; box-shadow: var(--shadow); }
.grv-inbox-item.unread { background: rgba(0,122,255,.03); border-left: 3px solid var(--info); }
.grv-inbox-left { display: flex; gap: 14px; flex: 1; min-width: 0; }
.grv-inbox-avatar { width: 40px; height: 40px; border-radius: 50%; background: var(--bg); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; flex-shrink: 0; font-size: 1rem; color: var(--text-light); }
.grv-inbox-avatar.anonymous { background: #000; color: #fff; border-color: #000; }
.grv-inbox-content { flex: 1; min-width: 0; }
.grv-inbox-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 2px; }
.grv-inbox-sender { font-size: .9rem; }
.grv-inbox-time { font-size: .72rem; color: var(--text-light); }
.grv-inbox-subject { font-size: .88rem; font-weight: 600; margin-bottom: 4px; }
.grv-inbox-preview { font-size: .8rem; color: var(--text-light); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-bottom: 6px; }
.grv-inbox-badges { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.grv-unread-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--info); }
.grv-detail-sender { display: flex; align-items: center; gap: 14px; padding-bottom: 16px; border-bottom: 1px solid var(--border); margin-bottom: 16px; }
.grv-detail-message { font-size: .95rem; line-height: 1.7; color: var(--text); white-space: pre-wrap; }

/* SSE Status */
.msg-sse-status { display: flex; align-items: center; }
.sse-dot { width: 8px; height: 8px; border-radius: 50%; background: #ccc; transition: background .3s; }
.sse-dot.connected { background: var(--success); box-shadow: 0 0 6px rgba(52,199,89,.4); }

@media (max-width: 768px) {
  .hide-mobile { display: none !important; }
  .grv-identity-options { grid-template-columns: 1fr; }
  .grv-recipients-list { grid-template-columns: 1fr; }
}

/* ════════════════════════════════════════
   TIMETABLE
   ════════════════════════════════════════ */
.timetable-table td { vertical-align: top; }
.tt-entries { display: flex; flex-wrap: wrap; gap: 8px; }
.tt-entry {
  display: flex; align-items: center; gap: 10px; padding: 8px 14px;
  background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-sm);
  transition: all var(--transition); font-size: .88rem;
}
.tt-entry:hover { border-color: #999; box-shadow: var(--shadow); }
.tt-entry-time { color: var(--text-light); font-size: .8rem; display: flex; align-items: center; gap: 4px; white-space: nowrap; }
.tt-entry-subject { font-weight: 600; flex: 1; }

/* ════════════════════════════════════════
   TO-DO LIST
   ════════════════════════════════════════ */
.todo-item {
  display: flex; align-items: center; gap: 12px; padding: 14px 20px;
  border-bottom: 1px solid var(--border); transition: all var(--transition);
}
.todo-item:last-child { border-bottom: none; }
.todo-item:hover { background: rgba(0,0,0,.015); }
.todo-item.completed .todo-text { text-decoration: line-through; color: var(--text-light); }
.todo-item.important { background: rgba(255,193,7,.04); }
.todo-item.important .todo-star { color: #F59E0B; }
.todo-check { background: none; border: none; cursor: pointer; font-size: 1.3rem; color: var(--text-light); padding: 0; flex-shrink: 0; transition: color var(--transition); }
.todo-check:hover { color: var(--success); }
.todo-item.completed .todo-check { color: var(--success); }
.todo-text { flex: 1; font-size: .9rem; line-height: 1.4; }
.todo-actions { display: flex; gap: 6px; flex-shrink: 0; }
.todo-star { background: none; border: none; cursor: pointer; font-size: 1.1rem; color: var(--text-light); padding: 4px; transition: color var(--transition); }
.todo-star:hover { color: #F59E0B; }
.todo-delete { background: none; border: none; cursor: pointer; font-size: 1rem; color: var(--text-light); padding: 4px; transition: color var(--transition); }
.todo-delete:hover { color: var(--error); }

/* ════════════════════════════════════════
   CLOUD STORAGE
   ════════════════════════════════════════ */
.cloud-file-item {
  display: flex; align-items: center; gap: 14px; padding: 14px 20px;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-sm);
  margin-bottom: 8px; transition: all var(--transition);
}
.cloud-file-item:hover { border-color: #999; box-shadow: var(--shadow); }
.cloud-file-icon {
  width: 44px; height: 44px; border-radius: 10px; background: var(--bg);
  display: flex; align-items: center; justify-content: center; font-size: 1.3rem;
  color: var(--text-light); flex-shrink: 0;
}
.cloud-file-info { flex: 1; min-width: 0; }
.cloud-file-info strong { font-size: .9rem; display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.cloud-file-info span { font-size: .78rem; color: var(--text-light); }
.cloud-file-actions { display: flex; gap: 6px; flex-shrink: 0; }

/* ════════════════════════════════════════
   IMAGE LIGHTBOX (Quiz Images)
   ════════════════════════════════════════ */
.quiz-img-thumb {
  max-width: 200px; max-height: 150px; border-radius: 8px; cursor: pointer;
  transition: transform var(--transition); border: 1px solid var(--border);
  object-fit: contain;
}
.quiz-img-thumb:hover { transform: scale(1.03); box-shadow: var(--shadow); }
.lightbox-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.85); z-index: 10000;
  display: flex; align-items: center; justify-content: center; padding: 40px;
  opacity: 0; visibility: hidden; transition: all .3s ease;
}
.lightbox-overlay.active { opacity: 1; visibility: visible; }
.lightbox-overlay img {
  max-width: 80vw; max-height: 80vh; border-radius: 12px; box-shadow: 0 20px 60px rgba(0,0,0,.5);
  object-fit: contain;
}
.lightbox-close {
  position: absolute; top: 24px; right: 32px; background: rgba(255,255,255,.15);
  border: none; color: #fff; font-size: 2rem; width: 48px; height: 48px;
  border-radius: 50%; cursor: pointer; display: flex; align-items: center;
  justify-content: center; transition: background .3s;
}
.lightbox-close:hover { background: rgba(255,255,255,.3); }

@media (max-width: 768px) {
  .tt-entries { flex-direction: column; }
  .cloud-file-item { flex-direction: column; align-items: flex-start; gap: 8px; }
  .cloud-file-actions { width: 100%; justify-content: flex-end; }
  .lightbox-overlay { padding: 20px; }
  .lightbox-overlay img { max-width: 95vw; max-height: 85vh; }
}

/* ════════════════════════════════════════
   TASK WORKFLOW (HOD Allotted Tasks)
   ════════════════════════════════════════ */

/* Orange glow animation for nav link */
@keyframes glowOrange {
  0%, 100% { background: rgba(249,115,22,.08); }
  50% { background: rgba(249,115,22,.2); }
}

/* Allotted Task Cards */
.allotted-task-card:hover { transform: none; }
.allotted-task-card .card-header { background: var(--bg); }

/* Workflow Timeline */
.wf-timeline { position: relative; padding-left: 24px; }
.wf-timeline-step { position: relative; padding-bottom: 16px; padding-left: 20px; }
.wf-timeline-step:last-child { padding-bottom: 0; }
.wf-timeline-step::before {
  content: ''; position: absolute; left: -24px; top: 8px; bottom: -8px;
  width: 2px; background: var(--border);
}
.wf-timeline-step:last-child::before { display: none; }
.wf-timeline-dot {
  position: absolute; left: -30px; top: 4px; width: 14px; height: 14px;
  border-radius: 50%; border: 2px solid var(--border); background: #fff; z-index: 1;
}
.wf-timeline-step.accepted .wf-timeline-dot { background: #16a34a; border-color: #16a34a; }
.wf-timeline-step.declined .wf-timeline-dot { background: #dc2626; border-color: #dc2626; }
.wf-timeline-step.active .wf-timeline-dot {
  background: #f59e0b; border-color: #f59e0b;
  animation: dotPulse 2s infinite;
}
@keyframes dotPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(245,158,11,.4); }
  50% { box-shadow: 0 0 0 6px rgba(245,158,11,0); }
}

/* Task Request Cards (Educator) */
.task-request-card { border-left: 4px solid var(--primary); }
.task-request-card:hover { transform: translateY(-2px); box-shadow: 0 4px 16px rgba(0,0,0,.08); }

@media (max-width: 768px) {
  .wf-timeline { padding-left: 16px; }
  .wf-timeline-step { padding-left: 14px; }
  .wf-timeline-dot { left: -22px; width: 12px; height: 12px; }
  .wf-timeline-step::before { left: -17px; }
}