:root {
  --primary: #0f6e5c;
  --primary-dark: #0a4f42;
  --primary-light: #e6f4f1;
  --gold: #c9a35a;
  --bg: #f7f9f8;
  --card-bg: #ffffff;
  --text: #1e2b28;
  --text-muted: #6b7a76;
  --border: #e2e8e6;
  --danger: #d9534f;
  --success: #2f9e6f;
  --radius: 10px;
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

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

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ===== Top Navbar ===== */
.navbar {
  background: var(--primary);
  color: #fff;
  padding: 14px 0;
}
.navbar .container { display: flex; justify-content: space-between; align-items: center; }
.navbar .logo { font-size: 20px; font-weight: 700; display: flex; align-items: center; gap: 8px; }
.navbar .logo span { color: var(--gold); }
.navbar nav a {
  color: #fff; margin-left: 20px; font-size: 15px; opacity: 0.9;
}
.navbar nav a:hover { opacity: 1; text-decoration: underline; }

/* ===== Layout: Sidebar + Content ===== */
.app-layout { display: flex; min-height: calc(100vh - 60px); }
.sidebar {
  width: 240px; background: var(--primary-dark); color: #fff; padding: 20px 0; flex-shrink: 0;
}
.sidebar a {
  display: block; padding: 12px 24px; color: #dfeeea; font-size: 14.5px; border-left: 3px solid transparent;
}
.sidebar a:hover, .sidebar a.active {
  background: rgba(255,255,255,0.08); border-left-color: var(--gold); color: #fff;
}
.main-content { flex: 1; padding: 28px; }

/* ===== Cards ===== */
.card {
  background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px; margin-bottom: 20px;
}
.card h3 { margin-bottom: 14px; color: var(--primary-dark); }

.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-box {
  background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; text-align: center;
}
.stat-box .num { font-size: 28px; font-weight: 700; color: var(--primary); }
.stat-box .label { color: var(--text-muted); font-size: 13.5px; margin-top: 4px; }

/* ===== Buttons ===== */
.btn {
  display: inline-block; padding: 10px 20px; border-radius: 6px; border: none; cursor: pointer;
  font-size: 14.5px; font-weight: 600; transition: 0.2s;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-gold { background: var(--gold); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-outline { background: transparent; border: 1px solid var(--primary); color: var(--primary); }
.btn-sm { padding: 6px 12px; font-size: 13px; }

/* ===== Forms ===== */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 6px; font-size: 14px; font-weight: 600; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 6px; font-size: 14.5px;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none; border-color: var(--primary);
}

.auth-box {
  max-width: 420px; margin: 60px auto; background: #fff; padding: 36px; border-radius: var(--radius);
  border: 1px solid var(--border);
}
.auth-box h2 { text-align: center; color: var(--primary-dark); margin-bottom: 24px; }

/* ===== Table ===== */
table { width: 100%; border-collapse: collapse; }
table th, table td { padding: 12px 14px; text-align: left; border-bottom: 1px solid var(--border); font-size: 14.5px; }
table th { background: var(--primary-light); color: var(--primary-dark); }

/* ===== Badges ===== */
.badge { padding: 4px 10px; border-radius: 20px; font-size: 12.5px; font-weight: 600; }
.badge-active, .badge-present, .badge-completed { background: #e2f6ec; color: var(--success); }
.badge-pending, .badge-late { background: #fdf3e0; color: #b8860b; }
.badge-inactive, .badge-absent { background: #fbe9e8; color: var(--danger); }

/* ===== Alerts ===== */
.alert { padding: 12px 16px; border-radius: 6px; margin-bottom: 16px; font-size: 14.5px; }
.alert-success { background: #e2f6ec; color: var(--success); }
.alert-error { background: #fbe9e8; color: var(--danger); }

/* ===== Course/Category cards ===== */
.category-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 18px; }
.category-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 22px;
  text-align: center; transition: 0.2s;
}
.category-card:hover { box-shadow: 0 4px 14px rgba(15,110,92,0.12); transform: translateY(-2px); }
.category-card .icon { font-size: 32px; color: var(--primary); margin-bottom: 10px; }

/* ===== Quran Reader ===== */
.quran-controls { display: flex; gap: 12px; margin-bottom: 20px; flex-wrap: wrap; }
.ayah-block { padding: 18px; border-bottom: 1px solid var(--border); }
.ayah-arabic { font-size: 26px; text-align: right; font-family: 'Traditional Arabic', 'Amiri', serif; line-height: 2.2; margin-bottom: 8px; }
.ayah-translation { color: var(--text-muted); font-size: 15px; }
.ayah-number { display: inline-block; background: var(--primary-light); color: var(--primary); border-radius: 50%; width: 26px; height: 26px; text-align: center; line-height: 26px; font-size: 12px; margin-left: 8px; }

/* ===== Live class ===== */
.jitsi-wrapper { width: 100%; height: 600px; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); }

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .app-layout { flex-direction: column; }
  .sidebar { width: 100%; display: flex; overflow-x: auto; padding: 10px 0; }
  .sidebar a { white-space: nowrap; padding: 10px 16px; border-left: none; border-bottom: 3px solid transparent; }
  .sidebar a.active { border-left: none; border-bottom-color: var(--gold); }
  .jitsi-wrapper { height: 400px; }
}