/* ============================================
   Admin TerangaSanté — Design System
   ============================================ */
:root {
    --primary: #0B5FDB;
    --primary-dark: #0948A8;
    --primary-light: #E8F0FE;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #06b6d4;
    --dark: #1A2537;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-500: #64748b;
    --gray-700: #334155;
    --gray-900: #0f172a;
    --sidebar-width: 260px;
    --sidebar-collapsed: 0px;
    --topbar-height: 60px;
    --radius: 12px;
    --shadow: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-lg: 0 4px 16px rgba(0,0,0,0.1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--gray-50);
    color: var(--gray-900);
    font-size: 14px;
}

/* ---- Sidebar ---- */
.sidebar {
    position: fixed; top: 0; left: 0; bottom: 0;
    width: var(--sidebar-width);
    background: var(--dark);
    color: #fff;
    z-index: 1000;
    overflow-y: auto;
    transition: transform 0.3s ease;
}

.sidebar-brand {
    padding: 20px 20px 16px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    display: flex; flex-direction: column;
}
.sidebar-brand i { font-size: 24px; color: var(--primary); margin-bottom: 4px; }
.sidebar-brand span { font-size: 18px; font-weight: 700; }
.sidebar-brand small { font-size: 11px; color: var(--gray-500); text-transform: uppercase; letter-spacing: 1px; }

.sidebar-nav { list-style: none; padding: 12px 0; }
.sidebar-section {
    padding: 16px 20px 6px;
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--gray-500);
    font-weight: 600;
}
.sidebar-nav a {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 20px;
    color: var(--gray-300);
    text-decoration: none;
    font-size: 13.5px;
    font-weight: 500;
    border-radius: 0;
    transition: all 0.15s;
}
.sidebar-nav a:hover { background: rgba(255,255,255,0.06); color: #fff; }
.sidebar-nav a.active {
    background: var(--primary);
    color: #fff;
    font-weight: 600;
}
.sidebar-nav a i { font-size: 16px; width: 20px; text-align: center; }

/* ---- Main content ---- */
#main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    transition: margin-left 0.3s ease;
}

/* ---- Topbar ---- */
.topbar {
    height: var(--topbar-height);
    background: #fff;
    border-bottom: 1px solid var(--gray-200);
    display: flex; align-items: center;
    padding: 0 24px; gap: 16px;
    position: sticky; top: 0; z-index: 100;
    box-shadow: var(--shadow);
}
.sidebar-toggle {
    background: none; border: none; font-size: 22px; color: var(--gray-700);
    cursor: pointer; display: none;
}
.topbar-title { font-size: 16px; font-weight: 700; color: var(--gray-900); flex: 1; }
.topbar-right { display: flex; align-items: center; gap: 12px; }
.topbar-user { font-size: 13px; color: var(--gray-700); font-weight: 500; }
.topbar-user i { font-size: 18px; vertical-align: middle; }

/* ---- Page content ---- */
.page-content { padding: 24px; }

/* ---- Cards ---- */
.stat-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
    display: flex; align-items: center; gap: 16px;
    transition: transform 0.2s;
}
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.stat-icon {
    width: 52px; height: 52px;
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 22px; color: #fff; flex-shrink: 0;
}
.stat-icon.blue { background: linear-gradient(135deg, var(--primary), #3b82f6); }
.stat-icon.green { background: linear-gradient(135deg, #059669, var(--success)); }
.stat-icon.orange { background: linear-gradient(135deg, #d97706, var(--warning)); }
.stat-icon.red { background: linear-gradient(135deg, #dc2626, var(--danger)); }
.stat-icon.teal { background: linear-gradient(135deg, #0891b2, var(--info)); }
.stat-icon.purple { background: linear-gradient(135deg, #7c3aed, #a855f7); }
.stat-info h3 { font-size: 24px; font-weight: 800; line-height: 1; margin-bottom: 4px; color: var(--gray-900); }
.stat-info p { font-size: 12px; color: var(--gray-500); margin: 0; font-weight: 500; }

.card {
    border: none;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.card-header {
    background: #fff;
    border-bottom: 1px solid var(--gray-200);
    padding: 16px 20px;
    font-weight: 700;
    font-size: 15px;
    display: flex; align-items: center; justify-content: space-between;
}

/* ---- Tables ---- */
.table { font-size: 13px; }
.table thead th {
    background: var(--gray-50);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 11px;
    letter-spacing: 0.5px;
    color: var(--gray-500);
    border-bottom: 2px solid var(--gray-200);
    padding: 10px 12px;
    white-space: nowrap;
}
.table td { padding: 10px 12px; vertical-align: middle; }
.table-hover tbody tr:hover { background: var(--primary-light); }

/* ---- Badges ---- */
.badge { font-weight: 600; font-size: 11px; padding: 4px 10px; border-radius: 6px; }

/* ---- Buttons ---- */
.btn-primary {
    background: var(--primary);
    border-color: var(--primary);
}
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); }

/* ---- Filter bar ---- */
.filter-bar {
    background: #fff;
    border-radius: var(--radius);
    padding: 16px 20px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
    display: flex; gap: 12px; flex-wrap: wrap; align-items: end;
}
.filter-bar .form-group { display: flex; flex-direction: column; gap: 4px; }
.filter-bar label { font-size: 11px; font-weight: 600; color: var(--gray-500); text-transform: uppercase; }
.filter-bar .form-control, .filter-bar .form-select {
    font-size: 13px; padding: 6px 12px;
    border-radius: 8px; border: 1px solid var(--gray-300);
}

/* ---- Empty state ---- */
.empty-state {
    text-align: center; padding: 48px 20px; color: var(--gray-500);
}
.empty-state i { font-size: 48px; margin-bottom: 12px; display: block; opacity: 0.4; }

/* ---- Login ---- */
.login-page {
    min-height: 100vh;
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, var(--dark) 0%, #0d2847 50%, var(--primary-dark) 100%);
    padding: 24px;
}
.login-card {
    background: #fff;
    border-radius: 20px;
    padding: 40px;
    width: 100%; max-width: 420px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.login-card .brand {
    text-align: center; margin-bottom: 32px;
}
.login-card .brand i { font-size: 36px; color: var(--primary); }
.login-card .brand h1 { font-size: 22px; font-weight: 800; color: var(--gray-900); margin: 8px 0 4px; }
.login-card .brand p { font-size: 13px; color: var(--gray-500); }

/* ---- Detail view ---- */
.detail-grid {
    display: grid;
    grid-template-columns: 160px 1fr;
    gap: 8px 16px;
    font-size: 13px;
}
.detail-grid dt { color: var(--gray-500); font-weight: 600; }
.detail-grid dd { color: var(--gray-900); margin: 0; }

/* ---- Quick actions ---- */
.action-btn {
    display: inline-flex; align-items: center; justify-content: center;
    width: 32px; height: 32px;
    border-radius: 8px; border: none;
    font-size: 14px; cursor: pointer;
    transition: all 0.15s;
}
.action-btn:hover { transform: scale(1.1); }
.action-btn.view { background: var(--primary-light); color: var(--primary); }
.action-btn.edit { background: #fef3c7; color: #d97706; }
.action-btn.delete { background: #fee2e2; color: #dc2626; }
.action-btn.success { background: #d1fae5; color: #059669; }

/* ---- Responsive ---- */
@media (max-width: 991px) {
    .sidebar { transform: translateX(-100%); }
    body.sidebar-open .sidebar { transform: translateX(0); }
    #main-content { margin-left: 0; }
    .sidebar-toggle { display: block; }
    .filter-bar { flex-direction: column; }
}

body.sidebar-collapsed .sidebar { transform: translateX(calc(-1 * var(--sidebar-width))); }
body.sidebar-collapsed #main-content { margin-left: 0; }

/* ---- Chart container ---- */
.chart-container {
    position: relative;
    height: 280px;
    background: #fff;
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
}

/* ---- Modal ---- */
.modal-header { border-bottom: 1px solid var(--gray-200); }
.modal-footer { border-top: 1px solid var(--gray-200); }
.modal-content { border-radius: var(--radius); border: none; box-shadow: var(--shadow-lg); }

/* ---- Form styling ---- */
.form-label { font-size: 13px; font-weight: 600; color: var(--gray-700); }
.form-control:focus, .form-select:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(11,95,219,0.15); }