/* ═══════════════════════════════════════════════════════════════
   AttendanceIQ – Premium Design System
   ═══════════════════════════════════════════════════════════════ */

/* ── Theme Variables ── */
:root {
  --sidebar-w:   270px;
  --topbar-h:    64px;
  --accent:      #6366f1;
  --accent-hover:#7c7fff;
  --accent-light:#a5b4fc;
  --accent-glow: rgba(99,102,241,.35);
  --gradient-accent: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a78bfa 100%);
  --gradient-green:  linear-gradient(135deg, #10b981 0%, #34d399 100%);
  --gradient-blue:   linear-gradient(135deg, #3b82f6 0%, #60a5fa 100%);
  --gradient-orange:  linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);
  --gradient-red:    linear-gradient(135deg, #ef4444 0%, #f87171 100%);
  --radius-xs:   6px;
  --radius-sm:   10px;
  --radius-md:   14px;
  --radius-lg:   18px;
  --radius-xl:   24px;
  --transition:  .25s cubic-bezier(.4,0,.2,1);
}

[data-theme="dark"], :root {
  --bg-base:     #06080d;
  --bg-surface:  #0c1017;
  --bg-elevated: #141922;
  --bg-hover:    #1c222f;
  --bg-glass:    rgba(12,16,23,.75);
  --border:      #1e2536;
  --border-light:#2a3348;
  --text-primary:#f0f4fc;
  --text-secondary:#b4bdcf;
  --text-muted:  #5c6680;
  --shadow-color: rgba(0,0,0,.5);
  --shadow-sm:   0 1px 3px var(--shadow-color);
  --shadow-md:   0 4px 20px var(--shadow-color);
  --shadow-lg:   0 8px 40px var(--shadow-color);
  --shadow-xl:   0 20px 60px var(--shadow-color);
  --success-fg:  #4ade80;
  --success-bg:  rgba(74,222,128,.08);
  --success-border: rgba(74,222,128,.18);
  --warning-fg:  #fbbf24;
  --warning-bg:  rgba(251,191,36,.08);
  --warning-border: rgba(251,191,36,.18);
  --danger-fg:   #f87171;
  --danger-bg:   rgba(248,113,113,.08);
  --danger-border: rgba(248,113,113,.18);
  --info-fg:     #60a5fa;
  --info-bg:     rgba(96,165,250,.08);
  --info-border: rgba(96,165,250,.18);
}

[data-theme="light"] {
  --bg-base:     #f4f6fb;
  --bg-surface:  #ffffff;
  --bg-elevated: #f0f2f7;
  --bg-hover:    #e8ebf2;
  --bg-glass:    rgba(255,255,255,.8);
  --border:      #e0e4ed;
  --border-light:#eaeef5;
  --text-primary:#0f172a;
  --text-secondary:#475569;
  --text-muted:  #94a3b8;
  --shadow-color: rgba(0,0,0,.08);
  --shadow-sm:   0 1px 3px var(--shadow-color);
  --shadow-md:   0 4px 20px var(--shadow-color);
  --shadow-lg:   0 8px 40px var(--shadow-color);
  --shadow-xl:   0 20px 60px var(--shadow-color);
  --success-fg:  #16a34a;
  --success-bg:  rgba(22,163,74,.06);
  --success-border: rgba(22,163,74,.15);
  --warning-fg:  #ca8a04;
  --warning-bg:  rgba(202,138,4,.06);
  --warning-border: rgba(202,138,4,.15);
  --danger-fg:   #dc2626;
  --danger-bg:   rgba(220,38,38,.06);
  --danger-border: rgba(220,38,38,.15);
  --info-fg:     #2563eb;
  --info-bg:     rgba(37,99,235,.06);
  --info-border: rgba(37,99,235,.15);
}

/* ── Reset / Base ── */
*, *::before, *::after { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-base);
  color: var(--text-primary);
  display: flex;
  overflow: hidden;
  transition: background var(--transition), color var(--transition);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ═══════════════════════════════════════════
   SIDEBAR
   ═══════════════════════════════════════════ */
.sidebar {
  width: var(--sidebar-w);
  height: 100vh;
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0;
  z-index: 100;
  transition: transform .3s cubic-bezier(.4,0,.2,1), background var(--transition);
  overflow-y: auto;
  overflow-x: hidden;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: .85rem;
  padding: 1.35rem 1.5rem;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  flex-shrink: 0;
  transition: background var(--transition);
}
.sidebar-brand:hover { background: var(--bg-hover); }

.brand-icon {
  width: 40px; height: 40px;
  background: var(--gradient-accent);
  border-radius: 11px;
  display: grid;
  place-items: center;
  font-size: 1.05rem;
  flex-shrink: 0;
  box-shadow: 0 4px 15px rgba(99,102,241,.35);
}
.brand-text {
  font-weight: 800; font-size: 1.1rem;
  letter-spacing: -.4px; color: var(--text-primary);
  line-height: 1.2;
}
.brand-sub {
  font-size: .6rem; color: var(--text-muted);
  font-weight: 600; letter-spacing: .1em;
  text-transform: uppercase; margin-top: 1px;
}

.sidebar-label {
  font-size: .62rem; font-weight: 700; letter-spacing: .14em;
  text-transform: uppercase; color: var(--text-muted);
  padding: 1.6rem 1.5rem .5rem;
}
.sidebar-nav { padding: .5rem .85rem; flex: 1; }

.sidebar-link {
  display: flex; align-items: center; gap: .8rem;
  padding: .7rem .9rem; border-radius: var(--radius-sm);
  text-decoration: none; color: var(--text-secondary);
  font-weight: 500; font-size: .875rem;
  transition: all .15s ease;
  margin-bottom: 4px; position: relative;
}
.sidebar-link .s-icon {
  width: 36px; height: 36px; border-radius: 9px;
  display: grid; place-items: center; font-size: 1.05rem;
  background: transparent; transition: all .2s ease; flex-shrink: 0;
}
.sidebar-link:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}
.sidebar-link:hover .s-icon {
  background: rgba(99,102,241,.08);
  color: var(--accent);
}
.sidebar-link.active {
  background: rgba(99,102,241,.08);
  color: #a5b4fc;
  font-weight: 600;
}
.sidebar-link.active .s-icon {
  background: var(--gradient-accent);
  color: #fff;
  box-shadow: 0 3px 10px rgba(99,102,241,.3);
}
.sidebar-link.active::before {
  content: ''; position: absolute; left: 0; top: 12%; bottom: 12%;
  width: 3px; border-radius: 0 4px 4px 0;
  background: var(--gradient-accent);
}

.sidebar-footer {
  padding: 1.25rem 1.5rem; border-top: 1px solid var(--border);
  font-size: .72rem; color: var(--text-muted); flex-shrink: 0;
}
.sidebar-footer .powered { display: flex; align-items: center; gap: .5rem; }
.sidebar-footer .powered i { font-size: .85rem; }

/* ═══════════════════════════════════════════
   MAIN WRAPPER
   ═══════════════════════════════════════════ */
.main-wrapper {
  margin-left: var(--sidebar-w);
  flex: 1; display: flex; flex-direction: column;
  height: 100vh; overflow: hidden;
  background: var(--bg-base);
}

/* ═══════════════════════════════════════════
   TOPBAR
   ═══════════════════════════════════════════ */
.topbar {
  height: var(--topbar-h);
  background: var(--bg-glass);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center;
  padding: 0 2rem; gap: 1rem; flex-shrink: 0;
  position: sticky; top: 0; z-index: 50;
}
.topbar-title {
  font-weight: 700; font-size: 1.05rem; color: var(--text-primary);
  letter-spacing: -.2px;
}
.topbar-breadcrumb { font-size: .76rem; color: var(--text-muted); margin-top: 1px; }
.topbar-breadcrumb span { color: var(--text-secondary); font-weight: 500; }
.topbar-toggle {
  display: none; background: none; border: none;
  color: var(--text-muted); font-size: 1.35rem; cursor: pointer; padding: .25rem;
}

/* Theme toggle */
.theme-toggle {
  width: 38px; height: 38px; border-radius: var(--radius-sm);
  background: var(--bg-elevated); border: 1px solid var(--border);
  color: var(--text-muted); display: grid; place-items: center;
  cursor: pointer; font-size: 1.05rem;
  transition: all .2s ease;
}
.theme-toggle:hover {
  background: var(--bg-hover);
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow), 0 4px 15px rgba(99,102,241,.2);
  transform: rotate(15deg);
}

/* System online badge */
.system-badge {
  background: var(--success-bg);
  color: var(--success-fg);
  border: 1px solid var(--success-border);
  font-size: .72rem;
  padding: .4rem .8rem;
  font-weight: 600;
  border-radius: 20px;
  letter-spacing: .02em;
}
.system-badge .bi-circle-fill { font-size: .38rem; animation: pulse-glow 2s ease-in-out infinite; }

@keyframes pulse-glow {
  0%, 100% { opacity: 1; }
  50% { opacity: .3; }
}

.page-content {
  flex: 1; overflow-y: auto;
  padding: 2.25rem 2.25rem;
  scroll-behavior: smooth;
}

/* ═══════════════════════════════════════════
   CARDS – Glass effect
   ═══════════════════════════════════════════ */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  overflow: hidden;
  position: relative;
}
.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(99,102,241,.3), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--border-light);
}
.card:hover::before { opacity: 1; }

.card-header {
  background: var(--bg-elevated) !important;
  border-bottom: 1px solid var(--border);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0 !important;
  padding: 1.1rem 1.5rem;
  display: flex; align-items: center;
}
.card-header h4, .card-header h5 {
  font-weight: 700; font-size: .95rem; color: var(--text-primary);
  margin: 0; display: flex; align-items: center; gap: .5rem;
  letter-spacing: -.1px;
}

/* ═══════════════════════════════════════════
   FORMS
   ═══════════════════════════════════════════ */
.form-control, .form-select {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  transition: all .2s ease;
  font-size: .9rem;
  padding: .7rem 1rem;
}
.form-control:focus, .form-select:focus {
  background: var(--bg-elevated);
  border-color: var(--accent);
  color: var(--text-primary);
  box-shadow: 0 0 0 3px var(--accent-glow), 0 0 20px rgba(99,102,241,.1);
}
.form-control::placeholder { color: var(--text-muted); }
.form-label {
  font-weight: 600; font-size: .78rem; color: var(--text-muted);
  margin-bottom: .6rem; text-transform: uppercase;
  letter-spacing: .06em;
}
.form-control-lg {
  padding: .85rem 1.15rem;
  font-size: 1rem;
  border-radius: var(--radius-sm);
}

/* ═══════════════════════════════════════════
   BUTTONS
   ═══════════════════════════════════════════ */
.btn {
  font-weight: 600; font-size: .875rem;
  border-radius: var(--radius-sm);
  transition: all .2s ease;
  padding: .55rem 1.2rem;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient-accent);
  border: none; color: #fff;
  box-shadow: 0 2px 10px rgba(99,102,241,.3);
}
.btn-primary:hover {
  box-shadow: 0 6px 25px rgba(99,102,241,.45);
  transform: translateY(-2px);
  color: #fff;
}
.btn-primary:active { transform: translateY(0); box-shadow: 0 2px 10px rgba(99,102,241,.3); }

.btn-success {
  background: var(--gradient-green);
  border: none; color: #fff;
  box-shadow: 0 2px 10px rgba(16,185,129,.25);
}
.btn-success:hover {
  box-shadow: 0 6px 25px rgba(16,185,129,.4);
  transform: translateY(-2px);
  color: #fff;
}
.btn-success:active { transform: translateY(0); }

.btn-warning {
  background: var(--gradient-orange);
  border: none; color: #fff;
  box-shadow: 0 2px 10px rgba(245,158,11,.25);
}
.btn-warning:hover { color: #fff; }

.btn-outline-secondary {
  border: 1px solid var(--border); color: var(--text-secondary);
  background: transparent;
}
.btn-outline-secondary:hover {
  background: var(--bg-elevated);
  border-color: var(--accent);
  color: var(--accent);
}

.btn-outline-danger {
  border: 1px solid rgba(248,113,113,.4); color: var(--danger-fg);
  background: transparent;
}
.btn-outline-danger:hover {
  background: var(--gradient-red); color: #fff; border-color: transparent;
  box-shadow: 0 4px 15px rgba(239,68,68,.3);
  transform: translateY(-1px);
}

/* ═══════════════════════════════════════════
   TABLES
   ═══════════════════════════════════════════ */
.table {
  --bs-table-bg: transparent;
  --bs-table-hover-bg: transparent;
  color: var(--text-primary);
  border-color: var(--border);
  font-size: .875rem;
  margin: 0;
}
.table th {
  color: var(--text-muted); font-weight: 600; font-size: .72rem;
  text-transform: uppercase; letter-spacing: .08em;
  padding: .95rem 1.35rem; background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
}
.table td {
  padding: 1rem 1.35rem;
  border-color: var(--border);
  vertical-align: middle;
}
.table tbody tr {
  transition: background .12s ease;
}
.table-hover tbody tr:hover {
  background: rgba(99,102,241,.04) !important;
}

/* ═══════════════════════════════════════════
   CAMERA / VIDEO
   ═══════════════════════════════════════════ */
.video-wrapper {
  position: relative;
  display: inline-block;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #000;
  box-shadow: var(--shadow-lg);
  border: 2px solid var(--border);
  transition: border-color .3s ease, box-shadow .3s ease;
}
.video-wrapper.scanning {
  border-color: rgba(74,222,128,.5);
  box-shadow: 0 0 30px rgba(74,222,128,.12), var(--shadow-lg);
}
.video-wrapper .video-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  border-radius: inherit;
}
.video-wrapper .corner-mark {
  position: absolute;
  width: 24px; height: 24px;
  border: 2.5px solid rgba(99,102,241,.5);
  transition: border-color .3s ease;
}
.video-wrapper.scanning .corner-mark { border-color: rgba(74,222,128,.7); }
.corner-mark.tl { top: 12px; left: 12px; border-right: none; border-bottom: none; border-radius: 4px 0 0 0; }
.corner-mark.tr { top: 12px; right: 12px; border-left: none; border-bottom: none; border-radius: 0 4px 0 0; }
.corner-mark.bl { bottom: 12px; left: 12px; border-right: none; border-top: none; border-radius: 0 0 0 4px; }
.corner-mark.br { bottom: 12px; right: 12px; border-left: none; border-top: none; border-radius: 0 0 4px 0; }

.video-wrapper .scan-line {
  position: absolute;
  left: 12px; right: 12px;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(74,222,128,.6), transparent);
  opacity: 0;
  transition: opacity .3s;
}
.video-wrapper.scanning .scan-line {
  opacity: 1;
  animation: scan-sweep 2.5s ease-in-out infinite;
}
@keyframes scan-sweep {
  0% { top: 12px; }
  50% { top: calc(100% - 14px); }
  100% { top: 12px; }
}

#video {
  width: 100%;
  max-width: 560px;
  display: block;
  border-radius: inherit;
}
#canvas { display: none; }

/* ═══════════════════════════════════════════
   STATUS BOX
   ═══════════════════════════════════════════ */
.status-box {
  min-height: 56px;
  border-radius: var(--radius-sm);
  font-size: .9rem; font-weight: 500;
  border: 1px solid transparent;
  transition: all .25s ease;
}
.status-box.alert-light     { background: var(--bg-elevated); border-color: var(--border); color: var(--text-primary); }
.status-box.alert-info      { background: var(--info-bg); border-color: var(--info-border); color: var(--info-fg); }
.status-box.alert-success   { background: var(--success-bg); border-color: var(--success-border); color: var(--success-fg); }
.status-box.alert-warning   { background: var(--warning-bg); border-color: var(--warning-border); color: var(--warning-fg); }
.status-box.alert-danger    { background: var(--danger-bg); border-color: var(--danger-border); color: var(--danger-fg); }
.status-box.alert-secondary { background: var(--bg-elevated); border-color: var(--border); color: var(--text-muted); }

/* ═══════════════════════════════════════════
   LIST GROUP
   ═══════════════════════════════════════════ */
.list-group-item {
  background: transparent;
  border-color: var(--border);
  color: var(--text-primary);
  font-size: .875rem;
  transition: background .12s ease;
  padding: .85rem 1.1rem;
}
.list-group-item:hover { background: var(--bg-hover); }

/* ═══════════════════════════════════════════
   BADGES
   ═══════════════════════════════════════════ */
.badge { font-weight: 600; border-radius: 7px; letter-spacing: .01em; }

.badge-accent {
  background: rgba(99,102,241,.1);
  color: var(--accent-light);
  border: 1px solid rgba(99,102,241,.2);
}
.badge-success {
  background: var(--success-bg);
  color: var(--success-fg);
  border: 1px solid var(--success-border);
}
.badge-info {
  background: var(--info-bg);
  color: var(--info-fg);
  border: 1px solid var(--info-border);
}
.badge-subtle {
  background: var(--bg-elevated);
  color: var(--text-muted);
  border: 1px solid var(--border);
}

/* ═══════════════════════════════════════════
   MISC
   ═══════════════════════════════════════════ */
hr { border-color: var(--border); opacity: .5; }
.spinner-border-sm { width: 1rem; height: 1rem; }

/* Avatar circle */
.avatar-circle {
  width: 34px; height: 34px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center; justify-content: center;
  font-size: .78rem; font-weight: 700;
  flex-shrink: 0;
  transition: transform .2s ease, box-shadow .2s ease;
}
.avatar-circle:hover {
  transform: scale(1.1);
  box-shadow: 0 3px 10px rgba(99,102,241,.2);
}
.avatar-accent   { background: rgba(99,102,241,.12);  color: var(--accent-light); }
.avatar-success  { background: var(--success-bg);     color: var(--success-fg); }
.avatar-warning  { background: rgba(210,153,34,.12);  color: var(--warning-fg); }
.avatar-danger   { background: rgba(248,81,73,.12);   color: var(--danger-fg); }

/* ═══════════════════════════════════════════
   HERO (Overview)
   ═══════════════════════════════════════════ */
.hero-section {
  text-align: center;
  margin-bottom: 2.5rem;
  position: relative;
}
.hero-section::before {
  content: '';
  position: absolute;
  top: -60px; left: 50%;
  transform: translateX(-50%);
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(99,102,241,.08) 0%, transparent 70%);
  pointer-events: none;
  z-index: -1;
}

.hero-pill {
  display: inline-flex; align-items: center; gap: .45rem;
  padding: .45rem 1rem; border-radius: 20px;
  background: rgba(99,102,241,.08);
  border: 1px solid rgba(99,102,241,.18);
  font-size: .78rem; color: var(--accent-light);
  font-weight: 600; letter-spacing: .01em;
}
.hero-title {
  font-size: 2.8rem; font-weight: 800;
  letter-spacing: -1px; line-height: 1.1;
  margin-top: .75rem;
}
.hero-gradient {
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 40%, #a78bfa 70%, #c4b5fd 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  color: var(--text-muted); font-size: 1.02rem;
  max-width: 520px; margin: .75rem auto 0; line-height: 1.65;
}

/* ═══════════════════════════════════════════
   STAT CARDS (Overview)
   ═══════════════════════════════════════════ */
.stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.5rem;
  transition: all .25s ease;
  position: relative;
  overflow: hidden;
}
.stat-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient-accent);
  opacity: 0;
  transition: opacity .25s ease;
}
.stat-card:hover {
  border-color: rgba(99,102,241,.3);
  box-shadow: 0 0 0 1px rgba(99,102,241,.15), 0 8px 30px var(--shadow-color);
  transform: translateY(-3px);
}
.stat-card:hover::after { opacity: 1; }
.stat-card.green:hover { border-color: rgba(16,185,129,.3); }
.stat-card.green::after { background: var(--gradient-green); }
.stat-card.green:hover { box-shadow: 0 0 0 1px rgba(16,185,129,.15), 0 8px 30px var(--shadow-color); }

.stat-icon {
  width: 54px; height: 54px;
  border-radius: var(--radius-md);
  display: grid; place-items: center;
  font-size: 1.5rem;
}
.stat-value {
  font-size: 2.4rem; font-weight: 800;
  line-height: 1; letter-spacing: -.5px;
  color: var(--text-primary);
}
.stat-label {
  color: var(--text-muted); font-size: .82rem;
  font-weight: 500; margin-top: .35rem;
}

/* ═══════════════════════════════════════════
   ACTION CARDS (Overview)
   ═══════════════════════════════════════════ */
.action-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--text-primary);
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.25rem;
  text-decoration: none;
  display: flex; flex-direction: column;
  align-items: center; gap: .75rem;
  transition: all .25s ease;
  font-weight: 600; font-size: .9rem;
  position: relative;
  overflow: hidden;
}
.action-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, rgba(99,102,241,.06), transparent 70%);
  opacity: 0;
  transition: opacity .25s;
}
.action-btn:hover {
  border-color: rgba(99,102,241,.3);
  color: var(--accent-light);
  box-shadow: 0 0 0 1px rgba(99,102,241,.15), 0 8px 35px var(--shadow-color);
  transform: translateY(-4px);
}
.action-btn:hover::before { opacity: 1; }
.action-btn .action-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-md);
  display: grid; place-items: center;
  font-size: 1.45rem;
  transition: transform .25s ease;
}
.action-btn:hover .action-icon { transform: scale(1.12) translateY(-2px); }
.action-btn .action-label { position: relative; z-index: 1; }

/* ═══════════════════════════════════════════
   TOAST NOTIFICATIONS
   ═══════════════════════════════════════════ */
.toast-container {
  position: fixed; bottom: 1.5rem; right: 1.5rem;
  z-index: 9999; display: flex; flex-direction: column;
  gap: .6rem; pointer-events: none;
}
.toast-item {
  padding: .9rem 1.25rem; border-radius: var(--radius-md);
  font-size: .85rem; font-weight: 500;
  display: flex; align-items: center; gap: .7rem;
  backdrop-filter: blur(16px) saturate(150%);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
  transform: translateX(30px); opacity: 0;
  transition: transform .35s cubic-bezier(.4,0,.2,1), opacity .35s ease;
  pointer-events: all;
  min-width: 310px; max-width: 420px;
  box-shadow: var(--shadow-lg);
}
.toast-item.show { transform: translateX(0); opacity: 1; }
.toast-item.hide { transform: translateX(30px); opacity: 0; }
.toast-item .toast-close {
  margin-left: auto; background: none; border: none;
  color: inherit; cursor: pointer; font-size: 1rem;
  opacity: .4; padding: 0 .2rem; line-height: 1;
  transition: opacity .15s;
}
.toast-item .toast-close:hover { opacity: 1; }
.toast-success { background: var(--success-bg); border: 1px solid var(--success-border); color: var(--success-fg); }
.toast-danger  { background: var(--danger-bg);  border: 1px solid var(--danger-border);  color: var(--danger-fg); }
.toast-warning { background: var(--warning-bg); border: 1px solid var(--warning-border); color: var(--warning-fg); }
.toast-info    { background: var(--info-bg);    border: 1px solid var(--info-border);    color: var(--info-fg); }

/* ═══════════════════════════════════════════
   EMPTY STATE
   ═══════════════════════════════════════════ */
.empty-state {
  text-align: center; padding: 3.5rem 1.5rem;
  color: var(--text-muted);
}
.empty-state .empty-icon {
  font-size: 3.5rem; color: var(--border-light);
  margin-bottom: 1.25rem; display: block;
}
.empty-state .empty-title {
  font-weight: 600; margin-bottom: .35rem;
  color: var(--text-secondary); font-size: 1.05rem;
}
.empty-state .empty-desc { font-size: .88rem; }

/* ═══════════════════════════════════════════
   SCROLLBAR
   ═══════════════════════════════════════════ */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 99px;
}
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ═══════════════════════════════════════════
   SECTION HEADERS
   ═══════════════════════════════════════════ */
.section-header {
  font-weight: 600; font-size: .82rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .06em;
}

/* ═══════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════ */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); box-shadow: 8px 0 40px rgba(0,0,0,.6); }
  .main-wrapper { margin-left: 0; }
  .topbar-toggle { display: block; }
  .topbar { padding: 0 1.25rem; }
  .page-content { padding: 1.5rem 1.15rem; }
  .sidebar-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.65); z-index: 99; backdrop-filter: blur(4px); }
  .sidebar-overlay.open { display: block; }
  .hero-title { font-size: 2rem; }
  .hero-section::before { width: 250px; height: 250px; }
  .stat-card { padding: 1.25rem; }
  .stat-value { font-size: 1.8rem; }
}

@media (max-width: 576px) {
  .action-btn { padding: 1.25rem .85rem; font-size: .82rem; }
  .action-btn .action-icon { width: 42px; height: 42px; font-size: 1.25rem; }
  .page-content { padding: 1.25rem 1rem; }
}