/* ==========================================
   TRACER STUDY MAIN STYLESHEET
   ========================================== */

:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --info-color: #0dcaf0;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --dark-color: #212529;
    --light-bg: #f8f9fa;
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background-color: var(--light-bg);
    color: #333;
    min-height: 100vh;
}

/* --- Landing Page Publik (index.php) --- */
.hero-section {
    background: linear-gradient(135deg, #0d6efd 0%, #0a58ca 100%);
    color: #ffffff;
    padding: 80px 0 60px 0;
    border-radius: 0 0 2rem 2rem;
}

.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: 0.75rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

/* --- Admin Panel & Layout Sidebar --- */
.sidebar {
    min-height: calc(100vh - 56px);
    background-color: var(--dark-color);
    box-shadow: inset -1px 0 0 rgba(0, 0, 0, 0.1);
}

.sidebar .nav-link {
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 0.25rem;
    padding: 0.65rem 1rem;
    border-radius: 0.375rem;
    transition: all 0.2s ease-in-out;
}

.sidebar .nav-link:hover,
.sidebar .nav-link.active {
    color: #ffffff;
    background-color: rgba(255, 255, 255, 0.15);
}

.sidebar .nav-link i {
    width: 20px;
}

/* --- Card Dashboard & Statistik --- */
.card-stat {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card-stat:hover {
    transform: translateY(-3px);
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15) !important;
}

/* --- Form Pengisian Alumni (alumni/form_tracer.php) --- */
.form-card {
    background: #ffffff;
    border: none;
    border-radius: 0.75rem;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    padding: 1.75rem;
    margin-bottom: 1.5rem;
}

.form-section-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 1.25rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #e9ecef;
}

/* --- Tabel & Komponen Umum --- */
.table-hover tbody tr:hover {
    background-color: rgba(13, 110, 253, 0.03);
}

.badge {
    padding: 0.5em 0.75em;
    font-weight: 500;
}

/* --- Responsif Mobile --- */
@media (max-width: 767.98px) {
    .sidebar {
        min-height: auto;
    }
    .hero-section {
        padding: 50px 0 40px 0;
        border-radius: 0 0 1rem 1rem;
    }
}