:root {
    --primary: #4f46e5;
    --primary-dark: #4338ca;
    --danger: #dc2626;
    --success: #16a34a;
    --warning: #ca8a04;
    --bg: #f4f5f9;
    --card-bg: #ffffff;
    --border: #e2e4ec;
    --text: #1f2330;
    --text-muted: #6b7280;
    --radius: 10px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    direction: rtl;
}

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

.topbar {
    background: linear-gradient(90deg, var(--primary), var(--primary-dark));
    color: #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,.08);
}
.topbar-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 14px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
}
.brand { font-size: 20px; font-weight: 700; display: flex; align-items: center; gap: 8px; }
.brand-icon { font-size: 22px; }

.nav { display: flex; gap: 4px; flex-wrap: wrap; }
.nav a {
    padding: 8px 14px;
    border-radius: 8px;
    font-size: 14px;
    opacity: .9;
    transition: .15s;
}
.nav a:hover, .nav a.active {
    background: rgba(255,255,255,.18);
    opacity: 1;
}

.user-menu { display: flex; align-items: center; gap: 12px; font-size: 14px; }
.btn-logout {
    background: rgba(255,255,255,.2);
    padding: 6px 12px;
    border-radius: 8px;
}
.btn-logout:hover { background: rgba(255,255,255,.32); }

.container { max-width: 1200px; margin: 24px auto; padding: 0 20px 40px; }

.footer { text-align: center; color: var(--text-muted); font-size: 13px; padding: 20px; }

.alert { padding: 12px 16px; border-radius: var(--radius); margin-bottom: 16px; font-size: 14px; }
.alert-success { background: #dcfce7; color: #166534; border: 1px solid #bbf7d0; }
.alert-danger { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }
.alert-warning { background: #fef9c3; color: #854d0e; border: 1px solid #fde68a; }

.page-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
}
.page-head h1 { font-size: 22px; margin: 0; }
.page-head p { color: var(--text-muted); margin: 4px 0 0; font-size: 14px; }

.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 1px 3px rgba(0,0,0,.03);
}

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 800px) { .grid-2, .grid-3 { grid-template-columns: 1fr; } }

.form-group { margin-bottom: 14px; }
.form-group label { display: block; margin-bottom: 6px; font-size: 14px; font-weight: 600; }
.form-control {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    background: #fff;
    color: var(--text);
    font-family: inherit;
}
.form-control:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(79,70,229,.12); }
select.form-control { cursor: pointer; }

.btn {
    display: inline-block;
    padding: 9px 18px;
    border-radius: 8px;
    border: none;
    background: var(--primary);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: .15s;
}
.btn:hover { background: var(--primary-dark); }
.btn-sm { padding: 5px 10px; font-size: 13px; }
.btn-danger { background: var(--danger); }
.btn-danger:hover { background: #b91c1c; }
.btn-secondary { background: #6b7280; }
.btn-secondary:hover { background: #4b5563; }
.btn-outline { background: transparent; border: 1px solid var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { padding: 10px 12px; text-align: right; border-bottom: 1px solid var(--border); }
th { background: #f9fafb; font-weight: 700; color: var(--text-muted); font-size: 13px; }
tr:hover td { background: #fafafe; }

.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    color: #fff;
}

.actions { display: flex; gap: 6px; }

.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 24px; }
@media (max-width: 900px) { .stats-grid { grid-template-columns: repeat(2, 1fr); } }
.stat-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px;
    text-align: center;
}
.stat-card .num { font-size: 28px; font-weight: 800; color: var(--primary); }
.stat-card .label { color: var(--text-muted); font-size: 13px; margin-top: 4px; }

/* جدول الحصص */
.timetable-wrap { overflow-x: auto; }
.timetable { border-collapse: collapse; width: 100%; min-width: 800px; }
.timetable th, .timetable td {
    border: 1px solid var(--border);
    padding: 6px;
    text-align: center;
    vertical-align: middle;
}
.timetable th { background: #f3f4f9; font-size: 13px; }
.timetable td.period-col { background: #f9fafb; font-weight: 700; width: 70px; }
.timetable select { width: 100%; font-size: 12px; padding: 5px; border-radius: 6px; border: 1px solid var(--border); }
.timetable .cell-empty { color: #cbd5e1; font-size: 13px; }

.print-table th, .print-table td { border: 1px solid #333; padding: 8px; text-align: center; }
.print-table th { background: #eee; }

.login-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), #7c3aed);
}
.login-card {
    background: #fff;
    border-radius: 14px;
    padding: 36px 32px;
    width: 100%;
    max-width: 380px;
    box-shadow: 0 20px 40px rgba(0,0,0,.2);
}
.login-card h1 { text-align: center; font-size: 22px; margin-bottom: 4px; }
.login-card p.sub { text-align: center; color: var(--text-muted); font-size: 13px; margin-bottom: 24px; }
.login-card .btn { width: 100%; padding: 11px; font-size: 15px; }

.empty-state { text-align: center; padding: 40px 20px; color: var(--text-muted); }
.empty-state .icon { font-size: 40px; margin-bottom: 10px; }

@media print {
    .topbar, .no-print, .footer { display: none !important; }
    body { background: #fff; }
}