/* ============================================================
   AulaSync — Components (Botones, Cards, Modals, Tables, Forms)
   ============================================================ */

/* ─── Botones ────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 10px 20px;
    border: none;
    border-radius: var(--border-radius);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
}

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

.btn-primary {
    background: var(--color-primary);
    color: var(--text-inverse);
}

.btn-primary:hover:not(:disabled) {
    background: var(--color-primary-dark);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--bg-surface);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--bg-body);
}

.btn-danger {
    background: var(--color-error);
    color: var(--text-inverse);
}

.btn-danger:hover:not(:disabled) {
    background: #DC2626;
}

.btn-success {
    background: var(--color-success);
    color: var(--text-inverse);
}

.btn-sm {
    padding: 6px 12px;
    font-size: var(--font-size-xs);
}

.btn-lg {
    padding: 14px 28px;
    font-size: var(--font-size-base);
}

.btn-icon {
    padding: 8px;
    border-radius: var(--border-radius-sm);
}

/* ─── Cards ──────────────────────────────────────────────── */
.card {
    background: var(--bg-surface);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    padding: var(--space-lg);
    transition: box-shadow var(--transition-normal);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

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

.card-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
}

.card-body {
    /* contenido */
}

/* ─── Tablas ─────────────────────────────────────────────── */
.table-container {
    overflow-x: auto;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
}

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

.data-table th {
    background: var(--bg-body);
    padding: 12px 16px;
    text-align: left;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border-color);
}

.data-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    font-size: var(--font-size-sm);
    color: var(--text-primary);
}

.data-table tr:last-child td {
    border-bottom: none;
}

.data-table tr:hover td {
    background: var(--color-primary-bg);
}

/* ─── Forms ──────────────────────────────────────────────── */
.form-group {
    margin-bottom: var(--space-md);
}

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

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    background: var(--bg-surface);
    color: var(--text-primary);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--border-color-focus);
    box-shadow: 0 0 0 3px var(--color-primary-bg);
}

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

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

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

/* ─── Badges / Pills ─────────────────────────────────────── */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 10px;
    border-radius: var(--border-radius-full);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    white-space: nowrap;
}

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

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

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

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

/* ─── Modal ──────────────────────────────────────────────── */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: var(--z-modal-overlay);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal {
    background: var(--bg-surface);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-xl);
    width: 90%;
    max-width: 560px;
    max-height: 85vh;
    overflow-y: auto;
    z-index: var(--z-modal);
    animation: modalIn 0.2s ease;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-lg);
    border-bottom: 1px solid var(--border-color);
}

.modal-body {
    padding: var(--space-lg);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-sm);
    padding: var(--space-lg);
    border-top: 1px solid var(--border-color);
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(10px);
    }

    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

/* ─── Toast Notifications ────────────────────────────────── */
.toast-container {
    position: fixed;
    top: var(--space-lg);
    right: var(--space-lg);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.toast {
    padding: 12px 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    min-width: 280px;
    max-width: 420px;
    animation: toastIn 0.3s ease;
    font-size: var(--font-size-sm);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.toast-success {
    background: var(--color-success);
    color: white;
}

.toast-error {
    background: var(--color-error);
    color: white;
}

.toast-warning {
    background: var(--color-warning);
    color: white;
}

.toast-info {
    background: var(--color-info);
    color: white;
}

@keyframes toastIn {
    from {
        opacity: 0;
        transform: translateX(100%);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ─── Menu Toggle (Mobile) ────────────────────────────────── */
.menu-toggle {
    display: none;
    background: transparent;
    border: none;
    font-size: 1.5rem;
    color: var(--text-main);
    cursor: pointer;
    padding: var(--space-xs);
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
    align-items: center;
    justify-content: center;
}

.menu-toggle:hover {
    background: var(--bg-main);
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .topbar-user-name {
        display: none;
    }
}

/* ─── Modal ───────────────────────────────────────────────── */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(2px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: var(--z-modal-overlay);
    animation: fadeIn 0.15s ease;
    padding: var(--space-md);
}

.modal-container {
    background: var(--bg-surface);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    animation: slideUp 0.2s ease;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-lg);
    border-bottom: 1px solid var(--border-color);
}

.modal-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px 8px;
    border-radius: var(--border-radius-sm, 6px);
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--bg-body);
    color: var(--text-primary);
}

.modal-body {
    padding: var(--space-lg);
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    border-top: 1px solid var(--border-color);
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ─── Form Groups ────────────────────────────────────────── */
.form-group {
    margin-bottom: var(--space-md);
}

.form-group label {
    display: block;
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-xs);
    color: var(--text-secondary);
}

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

@media (max-width: 480px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    font-family: var(--font-family);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    background: var(--bg-surface);
    color: var(--text-primary);
    box-sizing: border-box;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-bg);
}

.form-textarea {
    resize: vertical;
    min-height: 80px;
}

/* ─── Module List (Courses) ──────────────────────────────── */
.module-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.module-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-body);
    border-radius: var(--border-radius);
    margin-bottom: var(--space-xs);
    border: 1px solid var(--border-color);
    transition: background var(--transition-fast);
}

.module-item:hover {
    background: var(--color-primary-bg);
}

.module-item .module-order {
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    min-width: 24px;
    text-align: center;
}

.module-item .module-name {
    flex: 1;
    font-weight: var(--font-weight-medium);
}

.module-item .module-actions {
    display: flex;
    gap: 4px;
}

.module-item .module-actions button {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    padding: 2px 6px;
    border-radius: 4px;
    transition: background var(--transition-fast);
}

.module-item .module-actions button:hover {
    background: var(--border-color);
}

/* ─── Tabs ───────────────────────────────────────────────── */
.tabs {
    display: flex;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: var(--space-lg);
    gap: 0;
}

.tab {
    padding: var(--space-sm) var(--space-lg);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    cursor: pointer;
    border: none;
    background: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all var(--transition-fast);
}

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

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

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

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

.empty-state .empty-icon {
    font-size: 3rem;
    margin-bottom: var(--space-md);
}

.empty-state p {
    margin-bottom: var(--space-md);
}

/* ─── AI Exam Interactive Elements ───────────────────────── */
.ai-reaction-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    animation: bounceIn 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.summary-header.passed {
    background: linear-gradient(135deg, var(--color-success-bg), #dcfce7);
    border: 1px solid var(--color-success);
    color: #166534;
}

.summary-header.failed {
    background: linear-gradient(135deg, var(--color-error-bg), #fee2e2);
    border: 1px solid var(--color-error);
    color: #991b1b;
}

.summary-card {
    background: var(--bg-surface);
    transition: transform 0.2s ease;
}

.summary-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

@keyframes bounceIn {
    0% { opacity: 0; transform: scale(0.3); }
    50% { opacity: 1; transform: scale(1.05); }
    70% { transform: scale(0.9); }
    100% { transform: scale(1); }
}

.anim-fade-in {
    animation: fadeIn 0.4s ease-out;
}