/* ============================================================
   Athenaeum — Dashboard UI Styles
============================================================ */

:root {
  --clr-primary: #005088;
  --clr-primary-light: #e6f0f7;
  --clr-primary-dark: #00365c;
  --clr-secondary: #00D2FF;
  --clr-secondary-light: #e0f7fa;
  --clr-purple: #7B2CBF;
  --clr-pink: #FF0076;
  --clr-accent: #FFD700;
  --clr-surface: #f8fafc;
  --clr-surface-high: #ffffff;
  --clr-border: #e2e8f0;
  --clr-text-main: #0f172a;
  --clr-text-muted: #64748b;
  --sidebar-width: 260px;
  --header-height: 60px;
  --radius-xl: 16px;
  --radius-lg: 12px;
  --radius-md: 8px;
  --font-main: 'Urbanist', sans-serif;
  --font-heading: 'Merriweather', serif;
  --transition: 0.3s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: var(--font-main);
  background-color: var(--clr-surface);
  color: var(--clr-text-muted);
  display: flex;
  min-height: 100vh;
  font-size: 14px;
  line-height: 1.6;
}

/* ── Sidebar ───────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-width);
  background: #0A0E27;
  color: white;
  height: 100vh;
  position: fixed;
  top: 0; left: 0;
  display: flex;
  flex-direction: column;
  z-index: 100;
  transition: transform var(--transition);
}

.sidebar-header {
  height: var(--header-height);
  display: flex;
  align-items: center;
  padding: 0 1.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar-brand {
  font-size: 1.25rem;
  font-weight: 800;
  color: white;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.sidebar-nav {
  padding: 1.5rem 0;
  flex: 1;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 10px 24px;
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  transition: all var(--transition);
  border-left: 3px solid transparent;
}

.nav-item:hover, .nav-item.active {
  color: white;
  background: rgba(255,255,255,0.05);
  border-left-color: var(--clr-secondary);
}
.nav-item:hover .material-symbols-outlined, .nav-item.active .material-symbols-outlined {
  text-shadow: 0 0 12px rgba(0, 210, 255, 0.8);
  color: var(--clr-secondary);

  color: white;
  background: rgba(255,255,255,0.05);
  border-left-color: var(--clr-secondary);
}

.nav-item .material-symbols-outlined { font-size: 18px; }

.sidebar-footer {
  padding: 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.user-profile {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.user-avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--clr-secondary);
  display: grid; place-items: center;
  font-weight: bold;
}

.user-info p { font-size: 14px; font-weight: 700; }
.user-info span { font-size: 12px; opacity: 0.7; }

/* ── Main Content Area ─────────────────────────────────── */
.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.top-header {
  height: var(--header-height);
  background: var(--clr-surface-high);
  border-bottom: 1px solid var(--clr-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  position: sticky;
  top: 0; z-index: 50;
}

.header-left h1 {
  font-size: 26px;
  font-weight: 700;
  color: var(--clr-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.icon-btn {
  background: transparent;
  border: none;
  color: var(--clr-text-muted);
  cursor: pointer;
  width: 32px; height: 32px;
  border-radius: 50%;
  display: grid; place-items: center;
  transition: background var(--transition);
}
.icon-btn:hover { background: var(--clr-primary-light); color: var(--clr-primary); }

.mobile-toggle { display: none; }

.dashboard-body {
  padding: 30px 24px;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

/* ── Dashboard Grid & Cards ────────────────────────────── */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.card {
  background: var(--clr-surface-high);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  border: 1px solid var(--clr-border);
}

.stat-card {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.stat-icon {
  width: 44px; height: 44px;
  border-radius: var(--radius-md);
  background: var(--clr-primary-light);
  color: var(--clr-primary);
  display: grid; place-items: center;
}
.stat-icon .material-symbols-outlined { font-size: 2rem; }

.stat-info h3 { font-size: 32px; font-weight: 800; color: var(--clr-text-main); }
.stat-info p { font-size: 14px; color: var(--clr-text-muted); font-weight: 500; }

.dashboard-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1.5rem;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--clr-border);
}

.card-header h2 { font-size: 26px; color: var(--clr-primary); font-weight: 600; }

/* ── Link Child / Suggest Course Form ──────────────────── */
.form-group { margin-bottom: 1.25rem; }
.form-group label {
  display: block; font-size: 0.875rem; font-weight: 600; margin-bottom: 0.5rem;
}
.form-control {
  width: 100%; padding: 0.75rem 1rem;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  font-family: inherit; font-size: 0.95rem;
  transition: border-color var(--transition);
}
.form-control:focus { border-color: var(--clr-primary); outline: none; box-shadow: 0 0 0 3px var(--clr-primary-light); }

.btn {
  padding: 10px 20px; border: none; border-radius: var(--radius-md);
  font-weight: 700; cursor: pointer; transition: all var(--transition);
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-size: 14px;
}
.btn-primary { background: linear-gradient(135deg, var(--clr-primary), var(--clr-purple)); color: white; border: none; box-shadow: 0 4px 14px rgba(123, 44, 191, .30); }
.btn-primary:hover { background: linear-gradient(135deg, var(--clr-primary-dark), #5c2092); box-shadow: 0 8px 24px rgba(123, 44, 191, .50); transform: translateY(-1px); }
.btn-secondary { background: linear-gradient(135deg, var(--clr-secondary), var(--clr-primary)); color: white; border: none; box-shadow: 0 4px 14px rgba(0, 210, 255, .30); }

/* ── Analytics Visuals ─────────────────────────────────── */

/* Circular Progress (Attendance) */
.progress-circle-wrap {
  display: flex; align-items: center; justify-content: center;
  flex-direction: column; gap: 1rem; padding: 1rem 0;
}
.circular-chart { display: block; margin: 0 auto; max-width: 80%; max-height: 250px; }
.circle-bg { fill: none; stroke: var(--clr-border); stroke-width: 3.8; }
.circle { fill: none; stroke-width: 2.8; stroke-linecap: round; animation: progress 1s ease-out forwards; }
@keyframes progress { 0% { stroke-dasharray: 0 100; } }
.circular-chart.primary .circle { stroke: var(--clr-secondary); }
.percentage { fill: var(--clr-primary); font-family: var(--font-heading); font-size: 0.5em; font-weight: bold; text-anchor: middle; }

/* Linear Progress (Course Completion) */
.course-list { display: flex; flex-direction: column; gap: 1rem; }
.course-item { background: var(--clr-surface); padding: 1rem; border-radius: var(--radius-md); }
.course-item-header { display: flex; justify-content: space-between; margin-bottom: 0.5rem; font-size: 0.875rem; font-weight: 700; }
.progress-bar-wrap { width: 100%; height: 8px; background: var(--clr-border); border-radius: 4px; overflow: hidden; }
.progress-bar { height: 100%; background: var(--clr-primary); border-radius: 4px; transition: width 1s ease-in-out; }

/* Quiz List */
.quiz-list { list-style: none; display: flex; flex-direction: column; gap: 0.75rem; }
.quiz-item {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.75rem; border: 1px solid var(--clr-border); border-radius: var(--radius-md);
}
.quiz-item .title { font-size: 0.875rem; font-weight: 600; color: var(--clr-primary); }
.quiz-item .date { font-size: 0.75rem; color: var(--clr-text-muted); }
.quiz-badge {
  padding: 0.25rem 0.5rem; border-radius: var(--radius-md); font-size: 0.75rem; font-weight: 700;
}
.badge-good { background: var(--clr-secondary-light); color: #059669; }
.badge-warn { background: #fef3c7; color: #d97706; }

/* ── Responsive ────────────────────────────────────────── */
@media (max-width: 1024px) {
  .dashboard-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .mobile-toggle { display: block; }
}