/* ============================================
   Apple-Inspired Monochrome Theme
   Web Sekolah Terintegrasi - Kelompok 2
   ============================================ */

:root {
    --apple-bg: #f5f5f7;
    --apple-white: #ffffff;
    --apple-black: #1d1d1f;
    --apple-gray-600: #86868b;
    --apple-gray-300: #d2d2d7;
    --apple-gray-100: #e8e8ed;
    --apple-blue: #0071e3;
    --apple-blue-hover: #006edb;
    --apple-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
    --apple-shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.08);
    --radius: 12px;
    --radius-sm: 8px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Helvetica Neue', sans-serif;
    background-color: var(--apple-bg);
    color: var(--apple-black);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ─── Navigation ─── */
.navbar {
    padding: 0.5rem 1.5rem;
    background: rgba(255, 255, 255, 0.85) !important;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.navbar-brand {
    font-weight: 600;
    font-size: 1.1rem;
    letter-spacing: -0.02em;
    color: var(--apple-black) !important;
}

.navbar-dark .navbar-nav .nav-link {
    color: var(--apple-black) !important;
    font-weight: 400;
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    transition: background 0.2s;
}

.navbar-dark .navbar-nav .nav-link:hover {
    background: rgba(0, 0, 0, 0.05);
}

.navbar .dropdown-menu {
    border: none;
    border-radius: var(--radius);
    box-shadow: var(--apple-shadow-hover);
    padding: 0.5rem;
}

.navbar .dropdown-item {
    border-radius: var(--radius-sm);
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

/* ─── Cards ─── */
.card {
    border: none;
    border-radius: var(--radius);
    box-shadow: var(--apple-shadow);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    background: var(--apple-white);
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--apple-shadow-hover) !important;
}

.card-header {
    background: var(--apple-white);
    border-bottom: 1px solid var(--apple-gray-100);
    border-radius: var(--radius) var(--radius) 0 0 !important;
    padding: 1.25rem 1.5rem;
}

.card-body {
    padding: 1.5rem;
}

/* ─── Stat Cards (Monochrome) ─── */
.stat-card {
    border-radius: var(--radius);
    padding: 1.5rem;
    background: var(--apple-white);
    box-shadow: var(--apple-shadow);
    border: none;
    position: relative;
    overflow: hidden;
}

.stat-card .stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1;
    margin-bottom: 0.25rem;
}

.stat-card .stat-label {
    font-size: 0.85rem;
    font-weight: 400;
    letter-spacing: 0.01em;
}

.stat-card .stat-icon {
    position: absolute;
    top: 1.25rem;
    right: 1.25rem;
    font-size: 1.75rem;
    opacity: 0.15;
    transition: opacity 0.3s;
}

.stat-card:hover .stat-icon {
    opacity: 0.3;
}

.stat-card.mono-primary .stat-value { color: var(--apple-black); }
.stat-card.mono-secondary .stat-value { color: var(--apple-gray-600); }
.stat-card.mono-blue .stat-value { color: var(--apple-blue); }
.stat-card.mono-dark .stat-value { color: #000; }

/* ─── Typography ─── */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    letter-spacing: -0.02em;
}

h4 {
    font-size: 1.5rem;
}

.display-lead {
    font-size: 1.1rem;
    font-weight: 400;
    color: var(--apple-gray-600);
}

/* ─── Buttons ─── */
.btn {
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 0.9rem;
    padding: 0.5rem 1.25rem;
    transition: all 0.2s;
}

.btn-primary {
    background: var(--apple-black);
    border-color: var(--apple-black);
    color: white;
}

.btn-primary:hover {
    background: #000;
    border-color: #000;
    opacity: 0.9;
    transform: translateY(-1px);
}

.btn-outline-secondary {
    border-color: var(--apple-gray-300);
    color: var(--apple-gray-600);
}

.btn-outline-secondary:hover {
    background: var(--apple-gray-100);
    border-color: var(--apple-gray-300);
    color: var(--apple-black);
}

.btn-info, .btn-success, .btn-warning, .btn-danger {
    color: white;
}

/* ─── Tables ─── */
.table {
    font-size: 0.9rem;
}

.table th {
    border-top: none;
    font-weight: 500;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--apple-gray-600);
    padding: 1rem 0.75rem;
    border-bottom: 1px solid var(--apple-gray-100);
}

.table td {
    padding: 0.875rem 0.75rem;
    border-bottom: 1px solid var(--apple-gray-100);
    vertical-align: middle;
}

.table-hover tbody tr:hover {
    background: rgba(0, 0, 0, 0.02);
}

/* ─── Badges ─── */
.badge {
    font-weight: 500;
    font-size: 0.75rem;
    padding: 0.3em 0.65em;
    border-radius: 100px;
    letter-spacing: 0.01em;
}

.badge.bg-primary { background: var(--apple-black) !important; }
.badge.bg-info { background: var(--apple-blue) !important; }

/* ─── Forms ─── */
.form-control, .form-select {
    border-radius: var(--radius-sm);
    border: 1px solid var(--apple-gray-300);
    padding: 0.65rem 0.9rem;
    font-size: 0.9rem;
    transition: border 0.2s, box-shadow 0.2s;
}

.form-control:focus, .form-select:focus {
    border-color: var(--apple-black);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.1);
}

.form-label {
    font-weight: 500;
    font-size: 0.85rem;
    color: var(--apple-gray-600);
    margin-bottom: 0.35rem;
}

.input-group-text {
    border-radius: var(--radius-sm) 0 0 var(--radius-sm);
    background: var(--apple-white);
    border-color: var(--apple-gray-300);
    color: var(--apple-gray-600);
}

/* ─── Alerts ─── */
.alert {
    border-radius: var(--radius);
    border: none;
    font-size: 0.9rem;
}

.alert-success { background: #e8f5e9; color: #1b5e20; }
.alert-danger { background: #fbe9e7; color: #b71c1c; }

/* ─── Modal ─── */
.modal-content {
    border: none;
    border-radius: var(--radius);
    box-shadow: var(--apple-shadow-hover);
}

.modal-header {
    border-bottom: 1px solid var(--apple-gray-100);
    border-radius: var(--radius) var(--radius) 0 0;
    padding: 1.25rem 1.5rem;
}

.modal-body { padding: 1.5rem; }
.modal-footer {
    border-top: 1px solid var(--apple-gray-100);
    padding: 1rem 1.5rem;
}

/* ─── List Group ─── */
.list-group-item {
    border: none;
    border-bottom: 1px solid var(--apple-gray-100);
    padding: 1rem 1.5rem;
    transition: background 0.2s;
}

.list-group-item:last-child { border-bottom: none; }
.list-group-item:hover { background: rgba(0, 0, 0, 0.02); }

/* ─── Misc ─── */
hr {
    border-color: var(--apple-gray-100);
    opacity: 1;
}

.text-muted {
    color: var(--apple-gray-600) !important;
}

.rounded-4 { border-radius: var(--radius) !important; }
.rounded-bottom-0 { border-bottom-left-radius: 0 !important; border-bottom-right-radius: 0 !important; }

.bg-light { background-color: var(--apple-bg) !important; }

/* ─── Chart Containers ─── */
canvas {
    max-height: 220px;
    max-width: 100%;
}

/* ─── Responsive Mobile ─── */
@media (max-width: 768px) {
    .navbar { padding: 0.4rem 0.75rem; }
    .navbar-brand { font-size: 0.95rem; }
    .container-fluid { padding-left: 0.75rem; padding-right: 0.75rem; }
    
    h4 { font-size: 1.15rem; }
    .stat-card { padding: 1rem; }
    .stat-card .stat-value { font-size: 1.75rem; }
    .stat-card .stat-icon { font-size: 1.25rem; top: 0.75rem; right: 0.75rem; }
    .card-body { padding: 1rem; }
    .card-header { padding: 0.9rem 1rem; }
    
    .table-responsive { font-size: 0.78rem; }
    .table th, .table td { padding: 0.5rem 0.4rem; white-space: nowrap; }
    .btn { font-size: 0.8rem; padding: 0.4rem 0.8rem; }
    .form-control, .form-select { font-size: 0.82rem; padding: 0.5rem 0.65rem; }
    
    .modal-dialog { margin: 0.5rem; }
    .modal-body { padding: 1rem; }
    .modal-header { padding: 0.9rem 1rem; }
    
    canvas { max-height: 160px; }
    .display-lead { font-size: 0.95rem; }
    .row.g-3 > [class*="col-"] { margin-bottom: 0; }
}

@media (max-width: 480px) {
    .stat-card .stat-value { font-size: 1.35rem; }
    .stat-card { padding: 0.75rem; }
    .badge { font-size: 0.65rem; }
    h4 { font-size: 1rem; }
    #liveClock { font-size: 0.75rem !important; }
}

/* Search Suggest */
.search-suggest-item {
    display: block;
    padding: 0.5rem 0.75rem;
    color: #1d1d1f;
    text-decoration: none;
    background: #fff;
    border-bottom: 1px solid #f0f0f0;
    transition: background 0.15s ease;
}
.search-suggest-item:last-child {
    border-bottom: none;
    border-radius: 0 0 0.5rem 0.5rem;
}
.search-suggest-item:first-child {
    border-radius: 0.5rem 0.5rem 0 0;
}
.search-suggest-item:hover {
    background: #f5f5f7;
}
.search-suggest-item strong {
    color: #0071e3;
}