:root {
  --bg: #f4f6fb;
  --bg-2: #e8eef9;
  --surface: rgba(255, 255, 255, 0.62);
  --surface-strong: rgba(255, 255, 255, 0.85);
  --border: rgba(15, 23, 42, 0.08);
  --border-strong: rgba(15, 23, 42, 0.14);
  --text: #0f172a;
  --text-muted: #475569;
  --text-soft: #64748b;
  --accent: #2563eb;
  --accent-2: #0891b2;
  --accent-soft: rgba(37, 99, 235, 0.12);
  --success: #10b981;
  --success-soft: rgba(16, 185, 129, 0.12);
  --danger: #ef4444;
  --danger-soft: rgba(239, 68, 68, 0.12);
  --warning: #f59e0b;
  --warning-soft: rgba(245, 158, 11, 0.14);
  --shadow: 0 8px 32px rgba(15, 23, 42, 0.06);
  --shadow-strong: 0 20px 60px rgba(15, 23, 42, 0.1);
  --radius: 14px;
  --radius-sm: 10px;
}

[data-theme="dark"] {
  --bg: #0a0e1a;
  --bg-2: #131826;
  --surface: rgba(20, 26, 41, 0.55);
  --surface-strong: rgba(28, 35, 54, 0.78);
  --border: rgba(255, 255, 255, 0.06);
  --border-strong: rgba(255, 255, 255, 0.12);
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --text-soft: #64748b;
  --accent: #60a5fa;
  --accent-2: #22d3ee;
  --accent-soft: rgba(96, 165, 250, 0.18);
  --success: #34d399;
  --success-soft: rgba(52, 211, 153, 0.16);
  --danger: #f87171;
  --danger-soft: rgba(248, 113, 113, 0.16);
  --warning: #fbbf24;
  --warning-soft: rgba(251, 191, 36, 0.16);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-strong: 0 20px 60px rgba(0, 0, 0, 0.4);
}

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

html, body {
  font-family: 'Inter', -apple-system, system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  font-size: 14px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

body {
  background: linear-gradient(135deg, var(--bg) 0%, var(--bg-2) 100%);
  position: relative;
  overflow-x: hidden;
}

.bg-orbs {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.bg-orbs span {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
}
.bg-orbs span:nth-child(1) {
  width: 380px; height: 380px;
  background: var(--accent);
  top: -100px; left: -120px;
  opacity: 0.18;
}
.bg-orbs span:nth-child(2) {
  width: 320px; height: 320px;
  background: var(--accent-2);
  top: 30%; right: -120px;
  opacity: 0.15;
}
.bg-orbs span:nth-child(3) {
  width: 280px; height: 280px;
  background: #14b8a6;
  bottom: -100px; left: 30%;
  opacity: 0.12;
}

.glass {
  background: var(--surface);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.navbar {
  position: sticky;
  top: 12px;
  z-index: 100;
  margin: 12px 16px 24px;
  padding: 10px 16px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: -0.01em;
}
.brand-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 12px var(--accent-soft);
}
.tenant-tag {
  margin-left: 8px;
  padding: 3px 8px;
  border-radius: 6px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0;
}
.tenant-tag-super {
  background: linear-gradient(135deg, #ef4444, #f59e0b);
  color: white;
  letter-spacing: 0.06em;
}
.brand-dot-super {
  background: linear-gradient(135deg, #ef4444, #f59e0b);
  box-shadow: 0 0 12px rgba(239, 68, 68, 0.4);
}
.nav-links {
  display: flex;
  gap: 4px;
  flex: 1;
  justify-content: center;
}
.nav-links a {
  padding: 6px 12px;
  border-radius: 8px;
  text-decoration: none;
  color: var(--text-muted);
  font-weight: 500;
  font-size: 13px;
  transition: all 0.15s;
}
.nav-links a:hover {
  background: var(--accent-soft);
  color: var(--text);
}
.nav-links a.active {
  background: var(--accent-soft);
  color: var(--accent);
}
.nav-right {
  display: flex;
  align-items: center;
  gap: 8px;
}
.user-chip {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
  padding: 4px 10px;
  border-radius: 8px;
  background: var(--accent-soft);
}

.theme-toggle {
  width: 32px; height: 32px;
  border: 1px solid var(--border);
  background: transparent;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-muted);
  transition: all 0.15s;
}
.theme-toggle:hover { color: var(--text); border-color: var(--border-strong); }
.theme-toggle .icon-moon { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun { display: none; }
[data-theme="dark"] .theme-toggle .icon-moon { display: block; }

.container {
  position: relative;
  z-index: 1;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 16px 60px;
}

.alert {
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  font-size: 13px;
  font-weight: 500;
  transition: opacity 0.3s, transform 0.3s;
}
.alert-success { color: var(--success); background: var(--success-soft); border-color: var(--success-soft); }
.alert-error { color: var(--danger); background: var(--danger-soft); border-color: var(--danger-soft); }

h1, h2, h3 { letter-spacing: -0.02em; font-weight: 700; }
h1 { font-size: 24px; margin-bottom: 4px; }
h2 { font-size: 18px; margin-bottom: 12px; }
h3 { font-size: 15px; margin-bottom: 8px; }

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  gap: 12px;
  flex-wrap: wrap;
}
.page-header p { color: var(--text-muted); font-size: 13px; }

.card {
  background: var(--surface);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  margin-bottom: 16px;
}

.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

.stat-card {
  padding: 16px;
  border-radius: var(--radius);
  background: var(--surface);
  backdrop-filter: blur(18px) saturate(140%);
  border: 1px solid var(--border);
}
.stat-label { font-size: 12px; color: var(--text-muted); font-weight: 500; text-transform: uppercase; letter-spacing: 0.04em; }
.stat-value { font-size: 26px; font-weight: 700; margin-top: 4px; letter-spacing: -0.02em; }
.stat-meta { font-size: 12px; color: var(--text-soft); margin-top: 4px; }

.btn, .btn-primary, .btn-ghost, .btn-danger, .btn-success {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface-strong);
  color: var(--text);
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.15s;
}
.btn:hover, .btn-ghost:hover { border-color: var(--border-strong); transform: translateY(-1px); }
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: white;
  border-color: transparent;
  box-shadow: 0 4px 14px var(--accent-soft);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 20px var(--accent-soft); }
.btn-danger { color: var(--danger); background: var(--danger-soft); border-color: transparent; }
.btn-success { color: var(--success); background: var(--success-soft); border-color: transparent; }
.btn-sm { padding: 5px 10px; font-size: 12px; }

label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
input[type="text"], input[type="email"], input[type="password"], input[type="number"], input[type="date"], input[type="tel"], select, textarea {
  width: 100%;
  padding: 10px 12px;
  background: var(--surface-strong);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
  transition: all 0.15s;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.field { margin-bottom: 14px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 600px) { .form-row { grid-template-columns: 1fr; } }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
th {
  text-align: left;
  padding: 10px 12px;
  font-weight: 600;
  color: var(--text-muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--border);
}
td {
  padding: 12px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--accent-soft); }

.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 8px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.badge-success { background: var(--success-soft); color: var(--success); }
.badge-danger { background: var(--danger-soft); color: var(--danger); }
.badge-warning { background: var(--warning-soft); color: var(--warning); }
.badge-muted { background: var(--accent-soft); color: var(--accent); }

.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-muted);
}
.empty-state h3 { color: var(--text); margin-bottom: 6px; }

.auth-wrap {
  min-height: calc(100vh - 60px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 16px;
}
.auth-card {
  width: 100%;
  max-width: 380px;
  padding: 28px;
  border-radius: 18px;
  background: var(--surface);
  backdrop-filter: blur(24px) saturate(160%);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-strong);
}
.auth-card h1 {
  text-align: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 22px;
  margin-bottom: 6px;
}
.auth-card .subtitle {
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
  margin-bottom: 22px;
}
.auth-card .btn-primary { width: 100%; padding: 11px; margin-top: 6px; }
.auth-foot {
  text-align: center;
  margin-top: 18px;
  font-size: 12px;
  color: var(--text-muted);
}
.auth-foot a { color: var(--accent); text-decoration: none; font-weight: 600; }

.demo-block {
  margin-top: 22px;
}
.demo-divider {
  text-align: center;
  margin: 18px 0 12px;
  position: relative;
}
.demo-divider::before {
  content: '';
  position: absolute;
  top: 50%; left: 0; right: 0;
  height: 1px;
  background: var(--border);
}
.demo-divider span {
  position: relative;
  background: var(--surface);
  padding: 0 10px;
  font-size: 11px;
  color: var(--text-soft);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}
.demo-grid {
  display: grid;
  gap: 6px;
}
.demo-btn {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface-strong);
  cursor: pointer;
  transition: all 0.15s;
  font-family: inherit;
  text-align: left;
}
.demo-btn:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
  transform: translateY(-1px);
}
.demo-btn-super {
  border-color: rgba(239, 68, 68, 0.3);
  background: linear-gradient(135deg, rgba(239,68,68,0.08), rgba(245,158,11,0.08));
}
.demo-btn-super:hover {
  border-color: #ef4444;
  background: linear-gradient(135deg, rgba(239,68,68,0.15), rgba(245,158,11,0.15));
}
.demo-btn-super .demo-role {
  background: linear-gradient(135deg, #ef4444, #f59e0b);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.demo-role {
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
}
.demo-mail {
  font-size: 11px;
  color: var(--text-soft);
  margin-top: 1px;
}

.public-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.public-nav-right {
  display: flex;
  align-items: center;
  gap: 8px;
}
.btn-lg { padding: 12px 22px; font-size: 14px; }

.hero {
  position: relative;
  z-index: 1;
  padding: 80px 24px 60px;
  text-align: center;
}
.hero-content { max-width: 760px; margin: 0 auto; }
.hero-badge {
  display: inline-block;
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 20px;
}
.hero-title {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.08;
  margin-bottom: 18px;
}
.grad-text {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: 17px;
  color: var(--text-muted);
  max-width: 580px;
  margin: 0 auto 28px;
  line-height: 1.6;
}
.hero-actions {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.hero-meta {
  font-size: 13px;
  color: var(--text-soft);
}

.features { padding: 40px 16px; }
.feature-card {
  padding: 24px;
  border-radius: var(--radius);
  transition: all 0.2s;
}
.feature-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-strong); }
.feature-icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}
.feature-card h3 { margin-bottom: 6px; }
.feature-card p { color: var(--text-muted); font-size: 13px; line-height: 1.6; }

.cta-section { padding: 60px 16px; }
.cta-card {
  padding: 50px 30px;
  border-radius: 22px;
  text-align: center;
  background: linear-gradient(135deg, var(--accent-soft), rgba(8,145,178,0.10));
}
.cta-card h2 {
  font-size: clamp(24px, 4vw, 34px);
  letter-spacing: -0.02em;
  margin-bottom: 10px;
}
.cta-card p {
  color: var(--text-muted);
  margin-bottom: 22px;
  max-width: 460px;
  margin-left: auto;
  margin-right: auto;
}

.public-footer {
  text-align: center;
  padding: 40px 16px;
  color: var(--text-soft);
  font-size: 13px;
  border-top: 1px solid var(--border);
}

.attendance-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  background: var(--surface-strong);
  border: 1px solid var(--border);
  margin-bottom: 6px;
}
.attendance-row .name { font-weight: 600; }
.attendance-controls { display: flex; gap: 4px; }
.att-btn {
  padding: 5px 10px;
  font-size: 11px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-weight: 600;
}
.att-btn.active.present { background: var(--success-soft); color: var(--success); border-color: transparent; }
.att-btn.active.absent { background: var(--danger-soft); color: var(--danger); border-color: transparent; }
.att-btn.active.excused { background: var(--warning-soft); color: var(--warning); border-color: transparent; }

.flex { display: flex; gap: 8px; align-items: center; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-sm { gap: 6px; }
.mt-md { margin-top: 16px; }
.mb-md { margin-bottom: 16px; }
.text-muted { color: var(--text-muted); }
.text-soft { color: var(--text-soft); }
.text-sm { font-size: 12px; }
.text-right { text-align: right; }

.hero.hero-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: 56px;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 24px 60px;
  text-align: left;
}
.hero.hero-split .hero-content { margin: 0; max-width: none; text-align: left; }
.hero.hero-split .hero-subtitle { margin: 0 0 28px; max-width: 520px; }
.hero.hero-split .hero-actions { justify-content: flex-start; }
.hero.hero-split .hero-meta { text-align: left; }
.hero-visual {
  position: relative;
  padding: 2px;
  border-radius: 26px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 50%, rgba(255,255,255,0.08) 100%);
  box-shadow:
    0 30px 80px rgba(2, 6, 23, 0.45),
    0 8px 24px rgba(37, 99, 235, 0.18),
    0 0 0 1px rgba(255,255,255,0.04);
  aspect-ratio: 3 / 2;
  isolation: isolate;
}
.hero-visual::before {
  content: "";
  position: absolute;
  inset: -40px;
  background: radial-gradient(50% 50% at 50% 50%, rgba(37,99,235,0.25), transparent 70%);
  filter: blur(20px);
  z-index: -1;
  pointer-events: none;
}
.hero-visual::after {
  content: "";
  position: absolute;
  inset: 2px;
  border-radius: 24px;
  background: linear-gradient(135deg, rgba(37,99,235,0.12), transparent 40%, rgba(8,145,178,0.10));
  pointer-events: none;
  z-index: 1;
  mix-blend-mode: overlay;
}
.hero-visual img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  border-radius: 24px;
  position: relative;
  z-index: 0;
}
@media (max-width: 720px) {
  .hero.hero-split {
    grid-template-columns: 1fr;
    gap: 32px;
    text-align: center;
    padding: 56px 20px 40px;
  }
  .hero.hero-split .hero-content,
  .hero.hero-split .hero-subtitle,
  .hero.hero-split .hero-meta { text-align: center; }
  .hero.hero-split .hero-subtitle { margin: 0 auto 28px; }
  .hero.hero-split .hero-actions { justify-content: center; }
}