/* ============================================
   EduAdmin Pro - Reusable Components
   ============================================ */

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: var(--font-sm);
    transition: all var(--transition-fast);
    border: none;
    cursor: pointer;
    text-decoration: none;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 12px rgba(74, 144, 217, 0.3);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(74, 144, 217, 0.4);
}

.btn-secondary {
    background: var(--secondary);
    color: white;
    box-shadow: 0 4px 12px rgba(80, 200, 120, 0.3);
}

.btn-secondary:hover {
    background: var(--secondary-dark);
    transform: translateY(-2px);
}

.btn-accent {
    background: var(--accent);
    color: white;
}

.btn-accent:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: white;
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-danger:hover {
    background: #C0392B;
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-sm {
    padding: 8px 16px;
    font-size: var(--font-xs);
}

.btn-lg {
    padding: 16px 32px;
    font-size: var(--font-lg);
}

.btn-block {
    width: 100%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: var(--radius-full);
}

/* ============================================
   Cards
   ============================================ */
.card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: 0 2px 8px var(--shadow);
    border: 1px solid var(--border);
    transition: all var(--transition-fast);
}

.card:hover {
    box-shadow: 0 8px 24px var(--shadow);
    transform: translateY(-2px);
}

.card-flat {
    box-shadow: none;
    border: 1px solid var(--border);
}

.card-flat:hover {
    transform: none;
    border-color: var(--primary);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-md);
}

.card-title {
    font-size: var(--font-lg);
    font-weight: 600;
    color: var(--text-primary);
}

.card-subtitle {
    font-size: var(--font-sm);
    color: var(--text-secondary);
    margin-top: var(--space-xs);
}

.card-body {
    margin-bottom: var(--space-md);
}

.card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-md);
    border-top: 1px solid var(--border);
}

/* Menu Card (Dashboard) */
.menu-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.menu-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--primary);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.menu-card:hover::before {
    transform: scaleX(1);
}

.menu-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(74, 144, 217, 0.15);
}

.menu-card .menu-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-md);
    font-size: 28px;
}

.menu-card .menu-icon.modul { background: #EBF4FC; color: var(--primary); }
.menu-card .menu-icon.soal { background: #E8F8F0; color: var(--secondary); }
.menu-card .menu-icon.kuis { background: #FFF3E0; color: var(--accent); }
.menu-card .menu-icon.game { background: #F3E5F5; color: var(--berkesadaran); }
.menu-card .menu-icon.absensi { background: #E3F2FD; color: var(--bermakna); }
.menu-card .menu-icon.report { background: #FBE9E7; color: var(--bergembira); }

.menu-card .menu-title {
    font-size: var(--font-md);
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.menu-card .menu-desc {
    font-size: var(--font-xs);
    color: var(--text-secondary);
}

/* ============================================
   Form Elements
   ============================================ */
.form-group {
    margin-bottom: var(--space-lg);
}

.form-label {
    display: block;
    font-size: var(--font-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.form-label .required {
    color: var(--danger);
}

.form-input {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    font-size: var(--font-md);
    color: var(--text-primary);
    background: var(--bg-primary);
    transition: border-color var(--transition-fast);
}

.form-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(74, 144, 217, 0.1);
}

.form-input::placeholder {
    color: var(--text-light);
}

.form-input.error {
    border-color: var(--danger);
}

.form-textarea {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    font-size: var(--font-md);
    color: var(--text-primary);
    background: var(--bg-primary);
    resize: vertical;
    min-height: 120px;
    transition: border-color var(--transition-fast);
}

.form-textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(74, 144, 217, 0.1);
}

.form-select {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    font-size: var(--font-md);
    color: var(--text-primary);
    background: var(--bg-primary);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24'%3E%3Cpath fill='%237F8C8D' d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    cursor: pointer;
}

.form-select:focus {
    border-color: var(--primary);
}

.form-helper {
    font-size: var(--font-xs);
    color: var(--text-secondary);
    margin-top: var(--space-xs);
}

.form-error {
    font-size: var(--font-xs);
    color: var(--danger);
    margin-top: var(--space-xs);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

/* Checkbox & Radio */
.form-check {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
    width: 20px;
    height: 20px;
    accent-color: var(--primary);
}

/* ============================================
   Tags / Badges
   ============================================ */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: var(--radius-xl);
    font-size: var(--font-xs);
    font-weight: 600;
}

.badge-primary { background: var(--primary-bg); color: var(--primary); }
.badge-success { background: #E8F8F0; color: var(--success); }
.badge-warning { background: #FFF3E0; color: var(--warning); }
.badge-danger { background: #FDEDEC; color: var(--danger); }
.badge-info { background: #EBF5FB; color: var(--info); }

.badge-berkesadaran { background: #F3E5F5; color: var(--berkesadaran); }
.badge-bermakna { background: #E3F2FD; color: var(--bermakna); }
.badge-bergembira { background: #FFF3E0; color: var(--bergembira); }

/* ============================================
   Tables
   ============================================ */
.table-container {
    overflow-x: auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
}

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

.table th {
    background: var(--bg-tertiary);
    padding: 14px 16px;
    text-align: left;
    font-size: var(--font-sm);
    font-weight: 600;
    color: var(--text-secondary);
    white-space: nowrap;
}

.table td {
    padding: 14px 16px;
    border-top: 1px solid var(--border);
    font-size: var(--font-sm);
}

.table tr:hover td {
    background: var(--bg-secondary);
}

/* ============================================
   Stats Card
   ============================================ */
.stat-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    display: flex;
    align-items: center;
    gap: var(--space-md);
    border: 1px solid var(--border);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-info h4 {
    font-size: var(--font-2xl);
    font-weight: 700;
    line-height: 1;
}

.stat-info p {
    font-size: var(--font-xs);
    color: var(--text-secondary);
    margin-top: var(--space-xs);
}

/* ============================================
   Empty State
   ============================================ */
.empty-state {
    text-align: center;
    padding: var(--space-2xl);
}

.empty-state .empty-icon {
    font-size: 64px;
    color: var(--text-light);
    margin-bottom: var(--space-md);
}

.empty-state h3 {
    font-size: var(--font-lg);
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

.empty-state p {
    font-size: var(--font-sm);
    color: var(--text-light);
    margin-bottom: var(--space-lg);
}

/* ============================================
   Loading Spinner
   ============================================ */
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    z-index: 9999;
}

.loading-overlay p {
    color: var(--text-secondary);
    font-weight: 500;
}

/* ============================================
   Tabs
   ============================================ */
.tabs {
    display: flex;
    border-bottom: 2px solid var(--border);
    margin-bottom: var(--space-lg);
    overflow-x: auto;
}

.tab-item {
    padding: var(--space-md) var(--space-lg);
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    white-space: nowrap;
    transition: all var(--transition-fast);
}

.tab-item:hover {
    color: var(--primary);
}

.tab-item.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeInUp 0.3s ease;
}

/* ============================================
   Progress Bar
   ============================================ */
.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    border-radius: 4px;
    transition: width var(--transition-normal);
}

.progress-fill.primary { background: var(--primary); }
.progress-fill.success { background: var(--success); }
.progress-fill.warning { background: var(--warning); }
.progress-fill.danger { background: var(--danger); }

/* ============================================
   Chips / Tags
   ============================================ */
.chip {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 6px 14px;
    border-radius: var(--radius-xl);
    font-size: var(--font-xs);
    font-weight: 500;
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.chip-removable .chip-close {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0,0,0,0.1);
    cursor: pointer;
    font-size: 12px;
}

/* ============================================
   Accordion
   ============================================ */
.accordion-item {
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-sm);
    overflow: hidden;
}

.accordion-header {
    padding: var(--space-md) var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    font-weight: 600;
    transition: background var(--transition-fast);
}

.accordion-header:hover {
    background: var(--bg-secondary);
}

.accordion-header .material-icons-round {
    transition: transform var(--transition-fast);
}

.accordion-item.open .accordion-header .material-icons-round {
    transform: rotate(180deg);
}

.accordion-body {
    padding: 0 var(--space-lg) var(--space-lg);
    display: none;
}

.accordion-item.open .accordion-body {
    display: block;
}