:root {
  --bg: #f4f6f9;
  --surface: #ffffff;
  --border: #e2e6ec;
  --text: #1f2937;
  --text-muted: #6b7280;
  --primary: #184f95;
  --primary-dark: #104281;
  --primary-accent: #2a78d6;
  --success: #006300;
  --success-bg: #e6f7ef;
  --danger: #c62828;
  --danger-bg: #fdeaea;
  --warning: #946200;
  --warning-bg: #fdf3d9;
  --info: #184f95;
  --info-bg: #eaf1ff;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar-inner {
  max-width: 1150px;
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.brand { font-weight: 700; font-size: 1.05rem; color: var(--text); }
.brand:hover { text-decoration: none; }
.main-nav { display: flex; gap: 16px; flex-wrap: wrap; flex: 1; }
.main-nav a { color: var(--text-muted); font-size: 0.92rem; font-weight: 500; }
.main-nav a:hover { color: var(--primary); text-decoration: none; }
.user-box { display: flex; align-items: center; gap: 10px; font-size: 0.88rem; }
.user-name { font-weight: 600; }
.role-pill {
  background: var(--info-bg); color: var(--primary);
  padding: 2px 10px; border-radius: 999px; font-size: 0.75rem; font-weight: 600;
}
.logout-link { color: var(--text-muted); }
.badge {
  background: var(--danger); color: white; border-radius: 999px;
  font-size: 0.68rem; padding: 1px 6px; margin-left: 3px; font-weight: 700;
}

.page { max-width: 1150px; margin: 0 auto; padding: 28px 20px 60px; }

.flash-stack { margin-bottom: 20px; display: flex; flex-direction: column; gap: 8px; }
.flash { padding: 10px 16px; border-radius: var(--radius); font-size: 0.92rem; }
.flash-success { background: var(--success-bg); color: var(--success); }
.flash-danger { background: var(--danger-bg); color: var(--danger); }
.flash-warning { background: var(--warning-bg); color: var(--warning); }
.flash-info { background: var(--info-bg); color: var(--info); }

h1 { font-size: 1.5rem; margin: 0 0 4px; }
h2 { font-size: 1.15rem; margin: 0 0 14px; }
.subtitle { color: var(--text-muted); margin: 0 0 24px; font-size: 0.95rem; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}
.card-title { font-weight: 700; margin: 0 0 14px; font-size: 1rem; }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px 20px;
}
.stat-value { font-size: 1.8rem; font-weight: 700; }
.stat-label { color: var(--text-muted); font-size: 0.85rem; margin-top: 2px; }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 800px) { .two-col { grid-template-columns: 1fr; } }

table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); }
th { color: var(--text-muted); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.02em; }
tr:last-child td { border-bottom: none; }
.table-wrap { overflow-x: auto; }

.status-pill { padding: 3px 10px; border-radius: 999px; font-size: 0.78rem; font-weight: 600; display: inline-block; }
.status-present { background: var(--success-bg); color: var(--success); }
.status-absent { background: var(--danger-bg); color: var(--danger); }
.status-retard { background: var(--warning-bg); color: var(--warning); }
.status-absent_justifie { background: var(--info-bg); color: var(--info); }

.btn {
  display: inline-block; background: var(--primary); color: white; border: none;
  padding: 9px 18px; border-radius: 8px; font-size: 0.9rem; font-weight: 600; cursor: pointer;
}
.btn:hover { background: var(--primary-dark); text-decoration: none; }
.btn-secondary { background: var(--surface); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--bg); }
.btn-sm { padding: 5px 12px; font-size: 0.82rem; }

form.inline-form { display: inline; }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 700px) { .form-grid { grid-template-columns: 1fr; } }
.field { display: flex; flex-direction: column; gap: 5px; margin-bottom: 14px; }
.field label { font-size: 0.85rem; font-weight: 600; color: var(--text-muted); }
.field input, .field select, .field textarea {
  padding: 9px 12px; border: 1px solid var(--border); border-radius: 8px; font-size: 0.92rem;
  font-family: inherit; background: var(--surface); color: var(--text);
}
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid var(--primary); outline-offset: 1px; }
.checkbox-list { display: flex; flex-direction: column; gap: 6px; max-height: 220px; overflow-y: auto;
  border: 1px solid var(--border); border-radius: 8px; padding: 10px; }
.checkbox-list label { font-weight: 400; display: flex; align-items: center; gap: 8px; }

.empty-state { color: var(--text-muted); font-style: italic; padding: 16px 0; }

.login-wrap {
  max-width: 380px; margin: 8vh auto; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 32px;
}
.login-wrap h1 { text-align: center; margin-bottom: 4px; }
.login-wrap .subtitle { text-align: center; }
.demo-accounts { margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--border); font-size: 0.82rem; color: var(--text-muted); }
.demo-accounts code { background: var(--bg); padding: 1px 5px; border-radius: 4px; }

.notif-item { padding: 14px 0; border-bottom: 1px solid var(--border); }
.notif-item:last-child { border-bottom: none; }
.notif-unread { border-left: 3px solid var(--primary); padding-left: 12px; background: var(--info-bg); border-radius: 0 8px 8px 0; }
.notif-date { color: var(--text-muted); font-size: 0.78rem; margin-top: 3px; }

.section-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; flex-wrap: wrap; gap: 10px; }

.class-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 20px; }
.class-tab {
  padding: 7px 14px; border-radius: 999px; font-size: 0.86rem; font-weight: 600;
  background: var(--surface); border: 1px solid var(--border); color: var(--text-muted);
}
.class-tab:hover { text-decoration: none; background: var(--bg); }
.class-tab.active { background: var(--primary); border-color: var(--primary); color: white; }

.timetable-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 14px;
}
.tt-day-col { display: flex; flex-direction: column; gap: 10px; }
.tt-day-title {
  font-weight: 700; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.03em;
  color: var(--text-muted); padding-bottom: 8px; border-bottom: 2px solid var(--border);
}
.tt-card {
  background: var(--info-bg); border-radius: 8px; padding: 10px 12px; font-size: 0.85rem;
  border-left: 3px solid var(--primary);
}
.tt-card .tt-time { font-weight: 700; color: var(--primary); font-size: 0.8rem; }
.tt-card .tt-subject { font-weight: 600; margin-top: 2px; }
.tt-card .tt-meta { color: var(--text-muted); font-size: 0.78rem; margin-top: 2px; }
.tt-card form { margin-top: 6px; }
.tt-empty { color: var(--text-muted); font-size: 0.82rem; font-style: italic; }