/* ============================================
   FaceAttend - Design Tokens
   Tema: Navy (#0B1F3A / #14305C) + Putih (#FFFFFF)
   Aksen: Hijau (dikenali) #1FA971, Merah (unknown) #E0473F
   ============================================ */

:root {
    --navy-900: #0B1F3A;
    --navy-800: #14305C;
    --navy-700: #1C3D6E;
    --navy-100: #E8EDF5;
    --white: #FFFFFF;
    --gray-50: #F7F8FA;
    --gray-200: #E2E5EA;
    --gray-400: #9AA3B2;
    --gray-600: #5C6470;
    --gray-900: #1A1D23;

    --success: #1FA971;
    --success-bg: #E5F7EF;
    --danger: #E0473F;
    --danger-bg: #FBEAE9;
    --warning: #D98E04;

    --font-display: 'Sora', 'Segoe UI', sans-serif;
    --font-body: 'Inter', 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Consolas', monospace;

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --shadow-card: 0 1px 2px rgba(11, 31, 58, 0.06), 0 2px 8px rgba(11, 31, 58, 0.04);
}

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

body {
    font-family: var(--font-body);
    background: var(--gray-50);
    color: var(--gray-900);
    -webkit-font-smoothing: antialiased;
}

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

/* ============== LAYOUT ============== */

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

.sidebar {
    width: 248px;
    background: var(--navy-900);
    color: var(--white);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    padding: 24px 0;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 24px 28px 24px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    margin-bottom: 20px;
}

.brand-mark {
    width: 34px;
    height: 34px;
    background: var(--navy-700);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 14px;
}

.brand-name {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 16px;
    letter-spacing: -0.01em;
}

.sidebar-nav {
    flex: 1;
    padding: 0 12px;
}

.nav-section-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: rgba(255,255,255,0.4);
    padding: 16px 12px 8px 12px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    color: rgba(255,255,255,0.78);
    transition: background 0.15s ease, color 0.15s ease;
}

.nav-link:hover {
    background: rgba(255,255,255,0.06);
    color: var(--white);
}

.nav-link.active {
    background: var(--navy-700);
    color: var(--white);
}

.nav-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    opacity: 0.75;
}

.nav-link.active .nav-icon,
.nav-link:hover .nav-icon {
    opacity: 1;
}

.sidebar-footer {
    padding: 16px 24px 0 24px;
    border-top: 1px solid rgba(255,255,255,0.08);
    margin-top: 12px;
}

.sidebar-footer p {
    font-size: 12px;
    color: rgba(255,255,255,0.5);
}

.sidebar-footer-sub {
    font-size: 11px !important;
    color: rgba(255,255,255,0.3) !important;
    margin-top: 2px;
}

.sidebar-copyright {
    font-size: 11px;
    color: rgba(255,255,255,0.35);
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid rgba(255,255,255,0.08);
}

.main-content {
    flex: 1;
    padding: 32px 40px;
    width: 100%;
    max-width: none;
}

.content-inner {
    width: 100%;
    max-width: 1440px;
    margin: 0 auto;
}

/* ============== TYPOGRAPHY ============== */

h1, h2, h3 {
    font-family: var(--font-display);
    color: var(--navy-900);
    letter-spacing: -0.01em;
}

.page-header {
    margin-bottom: 28px;
}

.page-title {
    font-size: 26px;
    font-weight: 700;
}

.page-subtitle {
    font-size: 14px;
    color: var(--gray-600);
    margin-top: 4px;
}

/* ============== CARDS ============== */

.card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    padding: 24px;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 28px;
}

.stat-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    padding: 20px;
}

.stat-label {
    font-size: 13px;
    color: var(--gray-600);
    margin-bottom: 8px;
}

.stat-value {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 700;
    color: var(--navy-900);
}

.stat-value.accent-success { color: var(--success); }

/* ============== BUTTONS ============== */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 600;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.15s ease;
}

.btn-primary {
    background: var(--navy-900);
    color: var(--white);
}
.btn-primary:hover { background: var(--navy-800); }

.btn-secondary {
    background: var(--white);
    color: var(--navy-900);
    border-color: var(--gray-200);
}
.btn-secondary:hover { background: var(--gray-50); border-color: var(--gray-400); }

.btn-danger {
    background: var(--danger-bg);
    color: var(--danger);
}
.btn-danger:hover { background: #f5d4d2; }

.btn-success {
    background: var(--success);
    color: var(--white);
}
.btn-success:hover { background: #178a5c; }

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ============== FORMS ============== */

.form-group {
    margin-bottom: 18px;
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--navy-900);
    margin-bottom: 6px;
}

.form-input {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: var(--font-body);
    color: var(--gray-900);
    background: var(--white);
}

.form-input:focus {
    outline: none;
    border-color: var(--navy-700);
    box-shadow: 0 0 0 3px var(--navy-100);
}

/* ============== TABLES ============== */

.table-wrapper {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    overflow: hidden;
}

table {
    width: 100%;
    border-collapse: collapse;
}

thead {
    background: var(--navy-100);
}

th {
    text-align: left;
    padding: 12px 16px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--navy-800);
}

td {
    padding: 14px 16px;
    font-size: 14px;
    border-top: 1px solid var(--gray-200);
}

tbody tr:hover {
    background: var(--gray-50);
}

/* ============== BADGES ============== */

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 100px;
    font-size: 12px;
    font-weight: 600;
}

.badge-success {
    background: var(--success-bg);
    color: var(--success);
}

.badge-danger {
    background: var(--danger-bg);
    color: var(--danger);
}

.badge-neutral {
    background: var(--gray-200);
    color: var(--gray-600);
}

/* ============== ALERTS ============== */

.alert {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    margin-bottom: 20px;
}

.alert-error {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid #f1c4c1;
}

.alert-success {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid #b9e6d1;
}

/* ============== REALTIME CLOCK ============== */

.realtime-clock {
    display: flex;
    justify-content: flex-end;
    align-items: baseline;
    gap: 10px;
    margin-bottom: 20px;
    font-family: var(--font-mono);
    color: var(--gray-600);
}

.clock-date {
    font-size: 13px;
}

.clock-time {
    font-size: 15px;
    font-weight: 700;
    color: var(--navy-900);
    letter-spacing: 0.02em;
}

/* ============== UTILS ============== */

.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.text-muted { color: var(--gray-600); }
.text-mono { font-family: var(--font-mono); }