/* ═══════════════════════════════════════════════════════════════
   Padikkunnundo Admin Panel — Ultra-Modern SaaS Design System
   Inspired by Minimalist Soft-UI (Logip Dashboard Reference)
   ═══════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Inter:wght@400;500;600;700;800&display=swap');

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

:root {
  /* Canvas & Card Surfaces */
  --bg-canvas:    #f0f2f5;
  --bg-surface:   #ffffff;
  --bg-card:      #ffffff;
  --bg-hover:     #f8fafc;
  --bg-muted:     #f1f5f9;
  --bg-accent:    #f8fafc;

  /* Typography */
  --font-main:    'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --text-primary:   #0f172a;
  --text-secondary: #475569;
  --text-muted:     #94a3b8;
  --text-light:     #cbd5e1;

  /* Borders */
  --border:       #e2e8f0;
  --border-light: #f1f5f9;
  --border-focus: #0f172a;

  /* Core Accents */
  --primary:        #0f172a;
  --primary-hover:  #1e293b;
  --accent-blue:    #0284c7;
  --accent-blue-bg: #e0f2fe;
  --accent-blue-bd: #bae6fd;

  /* Semantic Colors */
  --green:        #16a34a;
  --green-bg:     #dcfce7;
  --green-bd:     #bbf7d0;
  --amber:        #d97706;
  --amber-bg:     #fef3c7;
  --amber-bd:     #fde68a;
  --rose:         #e11d48;
  --rose-bg:      #ffe4e6;
  --rose-bd:      #fecdd3;
  --purple:       #7c3aed;
  --purple-bg:    #ede9fe;
  --purple-bd:    #ddd6fe;

  /* Radii */
  --r-xs:  6px;
  --r-sm:  10px;
  --r-md:  14px;
  --r-lg:  20px;
  --r-xl:  28px;
  --r-full: 9999px;

  /* Shadows */
  --shadow-shell: 0 20px 60px rgba(15, 23, 42, 0.05), 0 1px 3px rgba(15, 23, 42, 0.02);
  --shadow-sm:    0 1px 3px rgba(15, 23, 42, 0.04), 0 1px 2px rgba(15, 23, 42, 0.02);
  --shadow-md:    0 4px 16px rgba(15, 23, 42, 0.06), 0 1px 4px rgba(15, 23, 42, 0.03);
  --shadow-lg:    0 16px 40px rgba(15, 23, 42, 0.09), 0 4px 12px rgba(15, 23, 42, 0.04);

  --transition: all 0.18s cubic-bezier(0.4, 0, 0.2, 1);
}

html, body {
  font-family: var(--font-main);
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

/* ── App Shell Floating Container (logip style) ─────────────── */
.app-shell {
  max-width: 1480px;
  margin: 20px auto;
  background: var(--bg-surface);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-shell);
  display: flex;
  min-height: calc(100vh - 40px);
  overflow: hidden;
  border: 1px solid rgba(226, 232, 240, 0.8);
}

@media (max-width: 1520px) {
  .app-shell {
    margin: 12px;
    min-height: calc(100vh - 24px);
    border-radius: 24px;
  }
}

@media (max-width: 768px) {
  .app-shell {
    margin: 0;
    border-radius: 0;
    min-height: 100vh;
    border: none;
  }
}

/* ── Sidebar ─────────────────────────────────────────────────── */
.sidebar {
  width: 240px;
  min-height: 100%;
  background: var(--bg-surface);
  border-right: 1px solid var(--border-light);
  display: flex;
  flex-direction: column;
  padding: 24px 18px 20px;
  flex-shrink: 0;
}

/* Brand Logo (Geometric Connected Glyphs like reference) */
.brand-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 4px 8px 24px;
}

.brand-glyph {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  flex-shrink: 0;
}

.brand-name {
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.6px;
  color: var(--primary);
}

.brand-name span {
  color: var(--accent-blue);
}

/* Sidebar Nav Items */
.sidebar-nav {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--r-md);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
  user-select: none;
}

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

.nav-item.active {
  background: var(--bg-muted);
  color: var(--primary);
  font-weight: 700;
}

.nav-icon {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: var(--transition);
}

.nav-item:hover .nav-icon {
  color: var(--text-primary);
}

.nav-item.active .nav-icon {
  color: var(--primary);
}

/* Upgrade / Studio Card (Matching "Upgrade to Pro" card in image) */
.sidebar-pro-card {
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 18px 14px;
  text-align: center;
  margin: 16px 0;
}

.pro-card-title {
  font-size: 13px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.pro-card-sub {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.4;
  margin-bottom: 12px;
}

.btn-pro {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 100%;
  padding: 8px 14px;
  background: var(--accent-blue-bg);
  color: var(--accent-blue);
  border: 1px solid var(--accent-blue-bd);
  border-radius: var(--r-full);
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
}

.btn-pro:hover {
  background: #bae6fd;
  transform: translateY(-1px);
}

/* Sidebar Footer */
.sidebar-footer {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-top: 12px;
  border-top: 1px solid var(--border-light);
}

.footer-nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-muted);
  border-radius: var(--r-sm);
  cursor: pointer;
  transition: var(--transition);
}

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

/* ── Main Content Area ───────────────────────────────────────── */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: var(--bg-surface);
  overflow-y: auto;
}

/* Top Header Bar */
.top-header {
  padding: 28px 36px 20px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
}

.header-greeting h1 {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.6px;
  color: var(--text-primary);
}

.header-greeting p {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 3px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Date Pill Badge (matching reference) */
.date-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--r-full);
  font-size: 12px;
  font-weight: 700;
  color: var(--text-secondary);
  box-shadow: var(--shadow-sm);
}

.date-pill svg {
  color: var(--text-muted);
}

/* Search Bar */
.search-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-muted);
  border: 1px solid transparent;
  border-radius: var(--r-full);
  padding: 7px 16px;
  height: 38px;
  width: 240px;
  transition: var(--transition);
}

.search-pill:focus-within {
  background: #ffffff;
  border-color: var(--border);
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.1);
}

.search-pill input {
  border: none;
  background: none;
  outline: none;
  font-family: inherit;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--text-primary);
  width: 100%;
}

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

/* Content Container */
.content-body {
  padding: 0 36px 36px;
  flex: 1;
}

/* ── Metric Stat Cards (Floating pill style) ─────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 28px;
}

.stat-pill-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 18px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

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

.stat-icon-circle {
  width: 44px;
  height: 44px;
  border-radius: var(--r-full);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.stat-data {
  flex: 1;
  min-width: 0;
}

.stat-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2px;
}

.stat-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
}

.stat-trend {
  font-size: 11px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: var(--r-full);
}

.trend-green { background: var(--green-bg); color: var(--green); }
.trend-orange { background: var(--amber-bg); color: var(--amber); }
.trend-blue   { background: var(--accent-blue-bg); color: var(--accent-blue); }
.trend-purple { background: var(--purple-bg); color: var(--purple); }

.stat-number {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text-primary);
  line-height: 1.2;
}

/* ── Common Card Wrapper ─────────────────────────────────────── */
.main-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.main-card-header {
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-light);
}

.card-title-wrap h2 {
  font-size: 16px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.3px;
}

.card-title-wrap p {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ── Subject Selection Grid Table ─────────────────────────── */
.subject-grid-section {
  background: #f8fafc;
  border-bottom: 1px solid var(--border-light);
  padding: 16px 20px 18px;
  transition: var(--transition);
}

.subject-grid-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.subject-grid-header-left {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.subject-grid-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  color: var(--primary);
  background: #ffffff;
  border: 1px solid var(--border);
  padding: 4px 10px;
  border-radius: var(--r-full);
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}

.subject-grid-subtitle {
  font-size: 12px;
  color: var(--text-muted);
}

.subject-grid-header-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.subject-grid-count {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-secondary);
  background: #ffffff;
  border: 1px solid var(--border);
  padding: 3px 9px;
  border-radius: var(--r-full);
}

.btn-grid-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #ffffff;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 11.5px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--r-sm);
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

.btn-grid-toggle:hover {
  background: var(--bg-muted);
  color: var(--text-primary);
  border-color: #cbd5e1;
}

.btn-grid-toggle .toggle-icon {
  transition: transform 0.2s ease;
}

.subject-grid-section.is-collapsed .btn-grid-toggle .toggle-icon {
  transform: rotate(180deg);
}

.subject-grid-section.is-collapsed .subject-grid-table {
  display: none;
}

.subject-grid-collapsed-info {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  font-size: 12.5px;
  margin-top: 4px;
}

.subject-grid-section.is-collapsed .subject-grid-collapsed-info {
  display: flex;
}

.collapsed-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.4px;
}

.collapsed-subj-tag {
  font-size: 10px;
  font-weight: 800;
  background: var(--primary);
  color: #ffffff;
  padding: 2px 6px;
  border-radius: 4px;
}

.collapsed-subj-name {
  font-weight: 700;
  color: var(--text-primary);
}

/* 4-column neatly aligned grid table - minmax(0, 1fr) ensures columns NEVER overflow */
.subject-grid-table {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  width: 100%;
  box-sizing: border-box;
}

@media (max-width: 1240px) {
  .subject-grid-table {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .subject-grid-table {
    grid-template-columns: minmax(0, 1fr);
  }
}

.subject-grid-card {
  background: #ffffff;
  border: 1.5px solid var(--border);
  border-radius: var(--r-md);
  padding: 8px 12px 10px;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 6px;
  text-align: left;
  user-select: none;
  position: relative;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.03);
  min-width: 0; /* CRITICAL: prevents grid columns from blowing out past card boundary */
  box-sizing: border-box;
}

.subject-grid-card:hover {
  border-color: #94a3b8;
  transform: translateY(-1px);
  box-shadow: 0 3px 10px rgba(15, 23, 42, 0.06);
}

.subject-grid-card.active {
  background: #ffffff;
  border-color: var(--primary);
  box-shadow: 0 0 0 1.5px var(--primary), 0 3px 10px rgba(15, 23, 42, 0.08);
}

.subject-grid-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  min-width: 0;
}

.subject-code-tag {
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.3px;
  color: var(--text-secondary);
  background: var(--bg-muted);
  padding: 2px 6px;
  border-radius: 5px;
  border: 1px solid var(--border-light);
  transition: var(--transition);
  flex-shrink: 0;
}

.subject-grid-card.active .subject-code-tag {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

.subject-select-indicator {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 10.5px;
  font-weight: 700;
  color: var(--text-muted);
  flex-shrink: 0;
}

.subject-select-indicator .select-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-light);
  transition: var(--transition);
}

.subject-grid-card:hover .subject-select-indicator .select-dot {
  background: var(--text-secondary);
}

.subject-grid-card.active .subject-select-indicator {
  color: var(--green);
}

.subject-grid-name {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
  min-height: 30px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  word-break: break-word;
  overflow-wrap: break-word;
}

/* ── Live Schedule Redesign ──────────────────────────────────── */
.schedule-container {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.modern-schedule-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 18px 20px;
  display: flex;
  align-items: center;
  gap: 20px;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.modern-schedule-card:hover {
  border-color: #cbd5e1;
  box-shadow: var(--shadow-md);
}

.modern-schedule-card.is-live {
  border-color: var(--green-bd);
  background: linear-gradient(90deg, rgba(220, 252, 231, 0.25) 0%, rgba(255, 255, 255, 1) 40%);
}

.modern-schedule-card.is-finished {
  opacity: 0.85;
  background: #f8fafc;
}

/* Time Badge Block */
.sched-time-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 86px;
  padding: 10px 14px;
  background: var(--bg-muted);
  border-radius: var(--r-md);
  border: 1px solid var(--border-light);
  flex-shrink: 0;
}

.sched-time {
  font-size: 13.5px;
  font-weight: 800;
  color: var(--text-primary);
}

.sched-date {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  margin-top: 2px;
}

.sched-details {
  flex: 1;
  min-width: 0;
}

.sched-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 6px;
}

.sched-title {
  font-size: 15px;
  font-weight: 800;
  color: var(--text-primary);
}

.sched-meta-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 12px;
  color: var(--text-secondary);
}

.sched-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--text-secondary);
}

.sched-room-code {
  font-family: monospace;
  font-size: 11px;
  background: var(--bg-muted);
  padding: 2px 7px;
  border-radius: 6px;
  border: 1px solid var(--border-light);
}

.sched-desc {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 5px;
}

.sched-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

/* ── Status Pills ────────────────────────────────────────────── */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: var(--r-full);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2px;
}

.status-live {
  background: var(--green-bg);
  color: var(--green);
  border: 1px solid var(--green-bd);
}

.status-live-dot {
  width: 6px;
  height: 6px;
  border-radius: var(--r-full);
  background: var(--green);
  box-shadow: 0 0 6px var(--green);
  animation: pulseLive 1.5s infinite;
}

@keyframes pulseLive {
  0% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(1.3); }
  100% { opacity: 1; transform: scale(1); }
}

.status-scheduled {
  background: var(--bg-muted);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

.status-finished {
  background: var(--purple-bg);
  color: var(--purple);
  border: 1px solid var(--purple-bd);
}

/* ── Notes & Files Redesign (Matching homepage.fig file card) ─── */
.notes-container {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Upload Dropzone */
.modern-dropzone {
  border: 2px dashed #cbd5e1;
  background: #f8fafc;
  border-radius: var(--r-lg);
  padding: 32px 20px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
}

.modern-dropzone:hover {
  border-color: var(--accent-blue);
  background: #f0f9ff;
}

.dropzone-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--r-full);
  background: #ffffff;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px;
  color: var(--accent-blue);
}

.dropzone-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
}

.dropzone-sub {
  font-size: 11.5px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* File Card (Exact Match to uploaded screenshot's homepage.fig card!) */
.files-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 14px;
}

.file-pill-card {
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 14px;
  transition: var(--transition);
}

.file-pill-card:hover {
  background: #ffffff;
  border-color: #cbd5e1;
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.file-icon-box {
  width: 40px;
  height: 40px;
  border-radius: var(--r-md);
  background: var(--rose-bg);
  color: var(--rose);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.file-details {
  flex: 1;
  min-width: 0;
}

.file-name {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-meta-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 3px;
}

.file-size-pill {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-secondary);
  background: #e2e8f0;
  padding: 1px 6px;
  border-radius: var(--r-xs);
}

.file-module {
  font-size: 11px;
  color: var(--text-muted);
}

.file-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

/* ── Recorded Classes Redesign ───────────────────────────────── */
.recordings-container {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.video-class-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 18px 20px;
  display: flex;
  align-items: center;
  gap: 18px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.video-class-card:hover {
  border-color: #cbd5e1;
  box-shadow: var(--shadow-md);
}

.video-preview-tile {
  width: 48px;
  height: 48px;
  border-radius: var(--r-md);
  background: #0f172a;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--transition);
}

.video-class-card:hover .video-preview-tile {
  background: var(--accent-blue);
  transform: scale(1.04);
}

.video-details {
  flex: 1;
  min-width: 0;
}

.video-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 5px;
}

.video-title {
  font-size: 14.5px;
  font-weight: 800;
  color: var(--text-primary);
}

.video-meta-row {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--text-secondary);
}

/* Trial Toggle Pill Switch */
.trial-pill-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: var(--r-full);
  font-size: 11.5px;
  font-weight: 700;
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition);
  font-family: inherit;
}

.trial-active {
  background: var(--green-bg);
  color: var(--green);
  border-color: var(--green-bd);
}

.trial-inactive {
  background: var(--bg-muted);
  color: var(--text-secondary);
  border-color: var(--border);
}

/* ── Buttons (Soft rounded pill buttons) ─────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 8px 16px;
  border-radius: var(--r-full);
  font-size: 12.5px;
  font-weight: 700;
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition);
  font-family: inherit;
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary);
  color: #ffffff;
}

.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.15);
}

.btn-secondary {
  background: #ffffff;
  color: var(--text-primary);
  border-color: var(--border);
}

.btn-secondary:hover {
  background: var(--bg-muted);
}

.btn-danger {
  background: var(--rose-bg);
  color: var(--rose);
  border-color: var(--rose-bd);
}

.btn-danger:hover {
  background: #fecdd3;
}

.btn-success {
  background: var(--green-bg);
  color: var(--green);
  border-color: var(--green-bd);
}

.btn-success:hover {
  background: #bbf7d0;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 11.5px;
}

.btn-icon {
  width: 32px;
  height: 32px;
  padding: 0;
  border-radius: var(--r-full);
}

/* ── Students Data Table ─────────────────────────────────────── */
.table-wrap {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table thead th {
  padding: 14px 20px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  text-align: left;
  border-bottom: 1px solid var(--border-light);
  background: #ffffff;
  white-space: nowrap;
}

.data-table tbody tr {
  border-bottom: 1px solid var(--border-light);
  transition: background 0.15s ease;
  cursor: pointer;
}

.data-table tbody tr:hover {
  background: var(--bg-hover);
}

.data-table tbody td {
  padding: 14px 20px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  vertical-align: middle;
}

.user-cell {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-avatar-circle {
  width: 36px;
  height: 36px;
  border-radius: var(--r-full);
  background: #e2e8f0;
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 800;
  flex-shrink: 0;
}

.user-text-name {
  font-weight: 700;
  font-size: 13.5px;
  color: var(--text-primary);
}

.user-text-email {
  font-size: 11.5px;
  color: var(--text-muted);
}

/* Enrolled Courses Drawer */
.user-row.is-expanded {
  background: #f8fafc !important;
}

.user-row-chevron {
  width: 16px;
  height: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: transform 0.2s ease;
  margin-right: 6px;
}

.user-row.is-expanded .user-row-chevron {
  transform: rotate(180deg);
  color: var(--primary);
}

.user-detail-row > td {
  padding: 0 !important;
  background: #fafafc;
}

.user-courses-drawer {
  padding: 20px 24px;
  background: #f8fafc;
  border-top: 1px dashed var(--border);
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.courses-grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
}

.enrolled-course-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 16px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* ── Modals (Glassmorphism backdrop) ─────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

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

.modal {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: 32px;
  width: 500px;
  max-width: 95vw;
  box-shadow: var(--shadow-lg);
  transform: translateY(12px) scale(0.98);
  transition: transform 0.22s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.2s ease;
}

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

.modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 22px;
}

.modal-title {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.3px;
  color: var(--text-primary);
}

.modal-subtitle {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 3px;
}

.modal-close {
  width: 32px;
  height: 32px;
  border-radius: var(--r-full);
  background: var(--bg-muted);
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.modal-close:hover {
  background: #e2e8f0;
  color: var(--text-primary);
}

/* Form Styles */
.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: 11.5px;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  margin-bottom: 6px;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-hover);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  outline: none;
  transition: var(--transition);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--primary);
  background: #ffffff;
  box-shadow: 0 0 0 3px rgba(15, 23, 42, 0.08);
}

/* ── Toast ───────────────────────────────────────────────────── */
#toast {
  position: fixed;
  bottom: 28px;
  right: 28px;
  background: var(--primary);
  border-radius: var(--r-full);
  padding: 12px 22px;
  font-size: 13px;
  font-weight: 700;
  color: #ffffff;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.22s ease;
  z-index: 9999;
  pointer-events: none;
}

#toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* ── Tab Display ─────────────────────────────────────────────── */
.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fadeIn 0.2s ease; }

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

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 1100px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 860px) {
  .sidebar {
    width: 72px;
    padding: 20px 10px;
    align-items: center;
  }
  .brand-name, .nav-item span, .sidebar-pro-card, .footer-nav-item span {
    display: none;
  }
  .top-header {
    padding: 20px 20px 14px;
    flex-direction: column;
    align-items: stretch;
  }
  .content-body {
    padding: 0 20px 24px;
  }
}

/* ═══════════════════════════════════════════════════════════════
   Login Page — Split-Screen Minimalist Hero & Clean Auth Panel
   ═══════════════════════════════════════════════════════════════ */
.login-page {
  min-height: 100vh;
  display: flex;
  background: var(--bg-canvas);
  font-family: var(--font-main);
}

/* Left Brand Hero */
.login-brand {
  flex: 1.1;
  background: linear-gradient(145deg, #090d16 0%, #0f172a 50%, #1e293b 100%);
  color: #ffffff;
  padding: 64px 56px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
}

.login-brand::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -120px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.15) 0%, rgba(15, 23, 42, 0) 70%);
  border-radius: 50%;
  pointer-events: none;
}

.login-brand-logo {
  width: 46px;
  height: 46px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(8px);
}

.login-brand-headline {
  font-size: 38px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -1px;
  margin-top: 40px;
  color: #ffffff;
}

.login-brand-sub {
  font-size: 15px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 16px;
  max-width: 440px;
}

.login-brand-stats {
  display: flex;
  gap: 36px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.login-brand-stat .value {
  font-size: 26px;
  font-weight: 800;
  color: #38bdf8;
  letter-spacing: -0.5px;
}

.login-brand-stat .label {
  font-size: 12px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.6);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 4px;
}

/* Right Form Panel */
.login-form-panel {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 32px;
  background: var(--bg-surface);
}

.login-form-wrap {
  width: 100%;
  max-width: 400px;
}

.login-form-title {
  font-size: 26px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.6px;
}

.login-form-sub {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 6px;
  margin-bottom: 28px;
}

.login-error {
  display: none;
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #dc2626;
  padding: 10px 14px;
  border-radius: var(--r-md);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 20px;
  align-items: center;
  gap: 8px;
}

.login-error.show {
  display: flex;
}

.login-footer {
  margin-top: 32px;
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
}

.input-wrap {
  position: relative;
}

.pw-toggle {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  cursor: pointer;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  padding: 4px;
}

.pw-toggle:hover {
  color: var(--text-primary);
}

@media (max-width: 900px) {
  .login-page {
    flex-direction: column;
  }
  .login-brand {
    padding: 40px 24px;
  }
  .login-brand-headline {
    font-size: 28px;
  }
  .login-brand-stats {
    gap: 20px;
  }
  .login-form-panel {
    padding: 36px 20px;
  }
}