/* ═══════════════════════════════════════════
   نظام الاختبارات الإلكتروني - التصميم الأساسي
   ═══════════════════════════════════════════ */

:root {
  --green:  #1a6b3c;
  --green-light: #e8f5e9;
  --gold:   #c8a84b;
  --gold-light: #fff8e1;
  --bg:     #f5f7fa;
  --card:   #ffffff;
  --text:   #2c1810;
  --gray:   #6c757d;
  --red:    #c0392b;
  --blue:   #1a3a6b;
}

body {
  background: var(--bg);
  font-family: 'Segoe UI', Tahoma, Arial, sans-serif;
  color: var(--text);
}

/* ── Navbar ── */
.navbar-admin {
  background: linear-gradient(135deg, var(--green), #2d9e5c) !important;
}
.navbar-student {
  background: linear-gradient(135deg, var(--blue), #2c6fbb) !important;
}
.navbar-admin .navbar-brand,
.navbar-admin .nav-link,
.navbar-student .navbar-brand,
.navbar-student .nav-link {
  color: #fff !important;
}
.navbar-admin .nav-link:hover,
.navbar-student .nav-link:hover {
  color: var(--gold) !important;
}
.navbar-toggler { border-color: rgba(255,255,255,.3); }
.navbar-toggler-icon { filter: invert(1); }

/* ── بطاقات إحصائيات ── */
.stat-card {
  border: none;
  border-radius: 16px;
  box-shadow: 0 2px 12px rgba(0,0,0,.06);
  transition: transform .2s, box-shadow .2s;
}
.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,.1);
}
.stat-card .stat-icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; color: #fff;
}
.stat-card .stat-value {
  font-size: 1.8rem;
  font-weight: 700;
  line-height: 1.2;
}
.stat-card .stat-label {
  font-size: .85rem;
  color: var(--gray);
}

/* ── بطاقات المواد ── */
.subject-card {
  border: none;
  border-radius: 16px;
  box-shadow: 0 2px 12px rgba(0,0,0,.06);
  overflow: hidden;
  transition: transform .2s;
}
.subject-card:hover { transform: translateY(-4px); }
.subject-card .card-header {
  padding: 20px;
  color: #fff;
  border: none;
}
.subject-card .card-body { padding: 20px; }

/* ── نموذج تسجيل الدخول ── */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.login-card {
  max-width: 440px;
  width: 100%;
  border: none;
  border-radius: 20px;
  box-shadow: 0 8px 32px rgba(0,0,0,.1);
  overflow: hidden;
}
.login-card .card-header {
  padding: 32px;
  text-align: center;
  color: #fff;
  border: none;
}
.login-card .card-header h3 { margin: 0; }
.login-card .card-body { padding: 32px; }

/* ── الأزرار ── */
.btn-green {
  background: linear-gradient(135deg, var(--green), #2d9e5c);
  color: #fff;
  border: none;
}
.btn-green:hover { background: #145232; color: #fff; }

.btn-gold {
  background: linear-gradient(135deg, var(--gold), #d4b555);
  color: #fff;
  border: none;
}
.btn-gold:hover { background: #a88a3a; color: #fff; }

/* ── الجداول ── */
.table-custom thead th {
  background: var(--green);
  color: #fff;
  border: none;
  font-weight: 600;
}
.table-custom tbody tr:hover {
  background: var(--green-light);
}

/* ── شارات ── */
.badge-pass { background: var(--green-light); color: var(--green); }
.badge-fail { background: #ffebee; color: var(--red); }
.badge-active   { background: var(--green-light); color: var(--green); }
.badge-inactive { background: #f5f5f5; color: var(--gray); }

/* ── عناصر عامة ── */
.section-title {
  font-weight: 700;
  color: var(--green);
  margin-bottom: 24px;
  padding-bottom: 8px;
  border-bottom: 3px solid var(--gold);
  display: inline-block;
}

.card-custom {
  border: none;
  border-radius: 16px;
  box-shadow: 0 2px 12px rgba(0,0,0,.06);
}

/* ── صفحة الاختبار (التايمر) ── */
.timer-bar {
  position: fixed;
  top: 0;
  left: 0; right: 0;
  z-index: 1050;
  background: linear-gradient(135deg, var(--green), #2d9e5c);
  color: #fff;
  padding: 10px 0;
  box-shadow: 0 2px 12px rgba(0,0,0,.25);
}
.timer-circle {
  font-size: 1.5rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  background: rgba(255,255,255,.18);
  padding: 4px 18px;
  border-radius: 50px;
  min-width: 90px;
  text-align: center;
  letter-spacing: 2px;
}
.timer-circle.warning { color: #ffd54f; }
.timer-circle.danger  { color: #ff6b6b; animation: pulse 1s infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.6} }

/* ── نموذج الاختبار العام ── */
.green-dark { color: var(--green); }


/* ── Responsive ── */
@media (max-width: 768px) {
  .stat-card .stat-value { font-size: 1.4rem; }
  .timer-display { font-size: 1.4rem; }
}