:root {
    --primary: #0f6e5c;
    --primary-dark: #0a5346;
    --primary-light: #e7f5f1;
    --accent: #c99a3f;
    --danger: #c0392b;
    --danger-light: #fdecea;
    --warning: #b8860b;
    --warning-light: #fdf3dc;
    --success: #1e8449;
    --success-light: #e8f6ee;
    --gray-50: #f7f8f9;
    --gray-100: #eef0f2;
    --gray-200: #dfe3e6;
    --gray-400: #9aa4ab;
    --gray-600: #5f6b72;
    --gray-800: #2b3338;
    --radius: 10px;
    --shadow: 0 1px 3px rgba(20,30,30,0.08), 0 1px 2px rgba(20,30,30,0.06);
}

* { box-sizing: border-box; }

body {
    font-family: 'Tajawal', 'Segoe UI', Tahoma, sans-serif;
    background: var(--gray-50);
    color: var(--gray-800);
    margin: 0;
    direction: rtl;
}

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

.app-shell { display: flex; min-height: 100vh; }

.sidebar {
    width: 240px;
    background: var(--primary-dark);
    color: #fff;
    flex-shrink: 0;
    padding: 20px 0;
}
.sidebar .brand {
    padding: 0 20px 20px;
    font-size: 17px;
    font-weight: 700;
    border-bottom: 1px solid rgba(255,255,255,0.12);
    margin-bottom: 10px;
}
.sidebar nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 11px 20px;
    color: rgba(255,255,255,0.85);
    font-size: 14.5px;
}
.sidebar nav a:hover, .sidebar nav a.active {
    background: rgba(255,255,255,0.1);
    text-decoration: none;
    color: #fff;
}
.sidebar .user-box {
    margin-top: 20px;
    padding: 14px 20px;
    border-top: 1px solid rgba(255,255,255,0.12);
    font-size: 13px;
    color: rgba(255,255,255,0.7);
}
.sidebar .user-box a { color: #fff; }

.main { flex: 1; min-width: 0; }
.topbar {
    background: #fff;
    border-bottom: 1px solid var(--gray-200);
    padding: 14px 26px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.topbar h1 { font-size: 19px; margin: 0; }
.content { padding: 24px 26px; }

.card {
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 20px;
    margin-bottom: 20px;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}
.stat-card {
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 18px 20px;
    box-shadow: var(--shadow);
}
.stat-card .label { font-size: 13px; color: var(--gray-600); margin-bottom: 6px; }
.stat-card .value { font-size: 26px; font-weight: 700; color: var(--primary-dark); }
.stat-card.warn .value { color: var(--warning); }
.stat-card.danger .value { color: var(--danger); }
.stat-card.success .value { color: var(--success); }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { padding: 10px 12px; text-align: right; border-bottom: 1px solid var(--gray-100); }
th { background: var(--gray-50); font-weight: 700; color: var(--gray-600); font-size: 13px; white-space: nowrap; }
tbody tr:hover { background: var(--gray-50); }

.table-wrap { overflow-x: auto; }

.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
}
.badge-success { background: var(--success-light); color: var(--success); }
.badge-danger  { background: var(--danger-light); color: var(--danger); }
.badge-warn    { background: var(--warning-light); color: var(--warning); }
.badge-gray    { background: var(--gray-100); color: var(--gray-600); }

.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 16px;
    border-radius: 8px;
    border: 1px solid transparent;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    background: var(--primary);
    color: #fff;
}
.btn:hover { background: var(--primary-dark); text-decoration: none; color: #fff; }
.btn-outline { background: #fff; border-color: var(--gray-200); color: var(--gray-800); }
.btn-outline:hover { background: var(--gray-50); color: var(--gray-800); }
.btn-danger { background: var(--danger); }
.btn-danger:hover { background: #a33025; }
.btn-sm { padding: 5px 10px; font-size: 12.5px; }

.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 6px; font-size: 13.5px; font-weight: 600; color: var(--gray-600); }
.form-control {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
}
.form-control:focus { outline: none; border-color: var(--primary); }
.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap: 16px; }

.filters { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 16px; align-items: center; }
.filters .form-control { width: auto; min-width: 160px; }

.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 16px; font-size: 14px; }
.alert-success { background: var(--success-light); color: var(--success); }
.alert-danger { background: var(--danger-light); color: var(--danger); }

.login-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
}
.login-box {
    background: #fff;
    padding: 36px 32px;
    border-radius: 14px;
    width: 100%;
    max-width: 380px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}
.login-box h1 { text-align: center; font-size: 18px; margin-bottom: 24px; color: var(--primary-dark); }

.pill-toggle { display: inline-flex; border: 1px solid var(--gray-200); border-radius: 20px; overflow: hidden; }
.pill-toggle button { border: none; background: #fff; padding: 5px 14px; font-size: 12.5px; cursor: pointer; }
.pill-toggle button.active { background: var(--primary); color: #fff; }

.month-cell { text-align: center; cursor: pointer; user-select: none; font-size: 12px; padding: 6px 4px; border-radius: 6px; min-width: 42px; }
.month-cell.paid { background: var(--success-light); color: var(--success); font-weight: 700; }
.month-cell.unpaid { background: var(--danger-light); color: var(--danger); font-weight: 700; }
.month-cell.partial { background: var(--warning-light); color: var(--warning); font-weight: 700; }
.month-cell.empty { background: var(--gray-100); color: var(--gray-400); }
.month-cell:hover { outline: 2px solid var(--primary); }

.pagination { display: flex; gap: 6px; margin-top: 16px; }
.pagination a, .pagination span { padding: 6px 12px; border: 1px solid var(--gray-200); border-radius: 6px; font-size: 13px; }
.pagination a:hover { background: var(--gray-50); text-decoration: none; }
.pagination .current { background: var(--primary); color: #fff; border-color: var(--primary); }

.text-muted { color: var(--gray-600); font-size: 13px; }
.mb-0 { margin-bottom: 0 !important; }

@media (max-width: 860px) {
    .sidebar { position: fixed; z-index: 50; height: 100%; transform: translateX(100%); transition: 0.2s; }
    .sidebar.open { transform: translateX(0); }
    .app-shell { display: block; }
}