/**
 * UrologIA - Componentes
 * Botones, cards, formularios, alertas, etc.
 */

/* ========== BOTONES ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    line-height: 1.5;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle;
    border: var(--border-width) solid transparent;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-sm {
    padding: var(--space-2) var(--space-3);
    font-size: var(--font-size-sm);
}

.btn-lg {
    padding: var(--space-4) var(--space-6);
    font-size: var(--font-size-lg);
}

/* Variantes */
.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
}

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

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

.btn-secondary:hover:not(:disabled) {
    background-color: var(--color-secondary-dark);
}

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

.btn-success:hover:not(:disabled) {
    background-color: var(--color-success-dark);
}

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

.btn-warning:hover:not(:disabled) {
    background-color: var(--color-warning-dark);
}

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

.btn-danger:hover:not(:disabled) {
    background-color: var(--color-danger-dark);
}

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

.btn-outline:hover:not(:disabled) {
    background-color: var(--color-primary);
    color: var(--color-white);
}

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

.btn-ghost:hover:not(:disabled) {
    background-color: var(--color-gray-100);
}

.btn-link {
    background-color: transparent;
    color: var(--color-primary);
    padding: 0;
}

.btn-link:hover:not(:disabled) {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

/* ========== CARDS ========== */
.card {
    background-color: var(--color-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.card-header {
    padding: var(--space-4) var(--space-6);
    border-bottom: var(--border-width) solid var(--border-color);
}

.card-header h3,
.card-header h4 {
    margin: 0;
}

.card-body {
    padding: var(--space-6);
}

.card-footer {
    padding: var(--space-4) var(--space-6);
    border-top: var(--border-width) solid var(--border-color);
    background-color: var(--color-gray-50);
}

/* Card clickable */
.card-clickable {
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

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

/* Card de herramienta */
.tool-card {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.tool-card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(var(--color-primary-rgb), 0.1);
    color: var(--color-primary);
    margin-bottom: var(--space-4);
}

.tool-card-icon svg {
    width: 24px;
    height: 24px;
}

.tool-card-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-2);
}

.tool-card-description {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    flex: 1;
    line-height: var(--line-height-relaxed);
}

/* ========== FORMULARIOS ========== */
.form-group {
    margin-bottom: var(--space-4);
}

.form-label {
    display: block;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: var(--color-secondary);
    margin-bottom: var(--space-2);
}

.form-label.required::after {
    content: ' *';
    color: var(--color-danger);
}

.form-input,
.form-select,
.form-textarea {
    display: block;
    width: 100%;
    padding: var(--space-2) var(--space-3);
    font-size: var(--font-size-base);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: var(--color-white);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.1);
}

.form-input.is-invalid,
.form-select.is-invalid,
.form-textarea.is-invalid {
    border-color: var(--color-danger);
}

.form-input.is-invalid:focus,
.form-select.is-invalid:focus,
.form-textarea.is-invalid:focus {
    box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.1);
}

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

.form-help {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-top: var(--space-1);
}

.form-error {
    font-size: var(--font-size-sm);
    color: var(--color-danger);
    margin-top: var(--space-1);
}

/* Checkbox y radio */
.form-check {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    cursor: pointer;
}

.form-check-input {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--color-primary);
}

.form-check-label {
    font-size: var(--font-size-sm);
    cursor: pointer;
}

/* ========== ALERTAS ========== */
.alert {
    padding: var(--space-4);
    border-radius: var(--border-radius);
    border: var(--border-width) solid transparent;
    margin-bottom: var(--space-4);
}

.alert-success {
    background-color: #d4edda;
    border-color: #c3e6cb;
    color: #155724;
}

.alert-warning {
    background-color: #fff3cd;
    border-color: #ffeaa7;
    color: #856404;
}

.alert-danger {
    background-color: #f8d7da;
    border-color: #f5c6cb;
    color: #721c24;
}

.alert-info {
    background-color: #d1ecf1;
    border-color: #bee5eb;
    color: #0c5460;
}

/* ========== BADGES ========== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-3);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    border-radius: var(--border-radius-full);
    white-space: nowrap;
}

.badge-primary {
    background-color: rgba(var(--color-primary-rgb), 0.1);
    color: var(--color-primary-dark);
}

.badge-secondary {
    background-color: rgba(var(--color-secondary-rgb), 0.1);
    color: var(--color-secondary);
}

.badge-success {
    background-color: #d4edda;
    color: #155724;
}

.badge-warning {
    background-color: #fff3cd;
    color: #856404;
}

.badge-danger {
    background-color: #f8d7da;
    color: #721c24;
}

.badge-info {
    background-color: #d1ecf1;
    color: #0c5460;
}

/* Badge de rol */
.badge-admin {
    background-color: var(--color-secondary);
    color: var(--color-white);
}

.badge-medico {
    background-color: var(--color-primary);
    color: var(--color-white);
}

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

/* ========== TABLAS ========== */
.table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--color-white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.table th {
    background-color: var(--color-gray-50);
    font-weight: var(--font-weight-semibold);
    color: var(--color-secondary);
    text-transform: uppercase;
    font-size: var(--font-size-sm);
    letter-spacing: 0.05em;
}

.table th,
.table td {
    padding: var(--space-3) var(--space-4);
    text-align: left;
    border-bottom: var(--border-width) solid var(--border-color);
}

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

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

.table-striped tbody tr:nth-child(even) {
    background-color: var(--color-gray-50);
}

/* ========== MODALES ========== */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: var(--z-modal-backdrop);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.modal-backdrop.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background-color: var(--color-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.95);
    transition: transform var(--transition-normal);
}

.modal-backdrop.active .modal {
    transform: scale(1);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-6);
    border-bottom: var(--border-width) solid var(--border-color);
}

.modal-header h3 {
    margin: 0;
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    transition: background-color var(--transition-fast);
}

.modal-close:hover {
    background-color: var(--color-gray-100);
}

.modal-body {
    padding: var(--space-6);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-6);
    border-top: var(--border-width) solid var(--border-color);
    background-color: var(--color-gray-50);
}

/* ========== SPINNER ========== */
.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--color-gray-200);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.spinner-sm {
    width: 16px;
    height: 16px;
    border-width: 2px;
}

.spinner-lg {
    width: 40px;
    height: 40px;
    border-width: 4px;
}

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

/* ========== AVATAR ========== */
.avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius-full);
    background-color: var(--color-primary);
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
}

.avatar-sm {
    width: 32px;
    height: 32px;
    font-size: var(--font-size-xs);
}

.avatar-lg {
    width: 56px;
    height: 56px;
    font-size: var(--font-size-lg);
}

/* ========== DROPDOWN ========== */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 180px;
    background-color: var(--color-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    z-index: var(--z-dropdown);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all var(--transition-fast);
}

.dropdown.active .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(4px);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    transition: background-color var(--transition-fast);
}

.dropdown-item:hover {
    background-color: var(--color-gray-50);
}

.dropdown-divider {
    height: 1px;
    background-color: var(--border-color);
    margin: var(--space-1) 0;
}

/* ========== EMPTY STATE ========== */
.empty-state {
    text-align: center;
    padding: var(--space-12) var(--space-6);
}

.empty-state-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--space-4);
    color: var(--color-gray-300);
}

.empty-state-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-secondary);
    margin-bottom: var(--space-2);
}

.empty-state-description {
    color: var(--text-secondary);
    margin-bottom: var(--space-6);
}

/* ========== STAT CARD ========== */
.stat-card {
    background-color: var(--color-white);
    border-radius: var(--border-radius-lg);
    padding: var(--space-6);
    box-shadow: var(--shadow);
}

.stat-card-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-2);
}

.stat-card-value {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-secondary);
}

.stat-card-trend {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--font-size-sm);
    margin-top: var(--space-2);
}

.stat-card-trend.up {
    color: var(--color-success);
}

.stat-card-trend.down {
    color: var(--color-danger);
}

/* ========== TABLE CONTAINER ========== */
.table-container {
    overflow-x: auto;
}

/* ========== UTILIDADES DE TEXTO ========== */
.text-success { color: var(--color-success) !important; }
.text-warning { color: var(--color-warning) !important; }
.text-danger { color: var(--color-danger) !important; }
.text-info { color: var(--color-info) !important; }
.text-muted { color: var(--text-muted) !important; }
.text-center { text-align: center !important; }
.text-right { text-align: right !important; }
.text-sm { font-size: var(--font-size-sm) !important; }
.text-xs { font-size: var(--font-size-xs) !important; }
.text-2xl { font-size: var(--font-size-2xl) !important; }
.font-semibold { font-weight: var(--font-weight-semibold) !important; }
.font-bold { font-weight: var(--font-weight-bold) !important; }

/* ========== UTILIDADES DE ESPACIADO ========== */
.mt-1 { margin-top: var(--space-1) !important; }
.mt-2 { margin-top: var(--space-2) !important; }
.mt-4 { margin-top: var(--space-4) !important; }
.mt-6 { margin-top: var(--space-6) !important; }
.mb-2 { margin-bottom: var(--space-2) !important; }
.mb-3 { margin-bottom: var(--space-3) !important; }
.mb-4 { margin-bottom: var(--space-4) !important; }
.mb-6 { margin-bottom: var(--space-6) !important; }
.py-8 { padding-top: var(--space-8) !important; padding-bottom: var(--space-8) !important; }

/* ========== UTILIDADES DE DISPLAY ========== */
.inline { display: inline !important; }
.inline-block { display: inline-block !important; }
.flex { display: flex !important; }
.grid { display: grid !important; }
.items-center { align-items: center !important; }
.justify-between { justify-content: space-between !important; }
.justify-end { justify-content: flex-end !important; }
.flex-wrap { flex-wrap: wrap !important; }
.gap-2 { gap: var(--space-2) !important; }
.gap-3 { gap: var(--space-3) !important; }
.gap-4 { gap: var(--space-4) !important; }
.gap-6 { gap: var(--space-6) !important; }

/* ========== BOTONES ADICIONALES ========== */
.btn-block {
    display: flex;
    width: 100%;
}

/* ========== ICONOS INLINE ========== */
.inline-icon {
    width: 16px;
    height: 16px;
    vertical-align: -2px;
    margin-right: 4px;
}

/* ========== CHART CONTAINER ========== */
.chart-container {
    position: relative;
    width: 100%;
}

/* ========== SEO COMPONENTS ========== */

/* Breadcrumbs */
.breadcrumb-nav {
    margin: var(--space-4) 0;
}

.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    padding: var(--space-2) 0;
    margin: 0;
    list-style: none;
    font-size: var(--font-size-sm);
}

.breadcrumb-item {
    display: flex;
    align-items: center;
}

.breadcrumb-item:not(:last-child)::after {
    content: '/';
    margin-left: var(--space-2);
    color: var(--color-gray-400);
}

.breadcrumb-item a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.breadcrumb-item a:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

.breadcrumb-item.active {
    color: var(--color-text-secondary);
}

/* FAQ Section */
.faq-section {
    margin: var(--space-8) 0;
    padding: var(--space-6) var(--space-4);
    background: var(--color-bg-secondary);
    border-radius: var(--border-radius-lg);
}

.faq-section h2 {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-6);
    color: var(--color-text-primary);
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.faq-item {
    padding: var(--space-4);
    background: white;
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--border-radius);
    transition: all var(--transition-normal);
}

.faq-item:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
}

.faq-question {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin: 0 0 var(--space-2) 0;
    color: var(--color-text-primary);
}

.faq-answer {
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin: 0;
}

/* References Section */
.references-section {
    margin: var(--space-8) 0;
    padding: var(--space-6) var(--space-4);
    background: var(--color-bg-tertiary);
    border-radius: var(--border-radius-lg);
    border-left: 4px solid var(--color-primary);
}

.references-section h2 {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-4);
    color: var(--color-text-primary);
}

.references-list {
    list-style: decimal;
    padding-left: var(--space-6);
    margin: 0;
}

.reference-item {
    margin-bottom: var(--space-3);
    font-size: var(--font-size-sm);
    line-height: 1.6;
    color: var(--color-text-secondary);
}

.reference-item strong {
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
}

.reference-item em {
    font-style: italic;
}

.reference-item a {
    color: var(--color-primary);
    text-decoration: none;
    border-bottom: 1px dotted var(--color-primary);
    transition: all var(--transition-fast);
}

.reference-item a:hover {
    color: var(--color-primary-dark);
    border-bottom-style: solid;
}

/* Related Tools Section */
.related-tools-section {
    margin: var(--space-8) 0;
    padding: var(--space-6) 0;
}

.related-tools-section h3 {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-4);
    color: var(--color-text-primary);
}

.related-tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-4);
}

.related-tool-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-4);
    background: white;
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--border-radius);
    text-decoration: none;
    transition: all var(--transition-normal);
    text-align: center;
}

.related-tool-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
    border-color: var(--color-primary);
}

.related-tool-card i {
    width: 48px;
    height: 48px;
    color: var(--color-primary);
    margin-bottom: var(--space-3);
}

.related-tool-card h4 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin: 0 0 var(--space-2) 0;
    color: var(--color-text-primary);
}

.related-tool-card p {
    font-size: var(--font-size-sm);
    line-height: 1.5;
    color: var(--color-text-secondary);
    margin: 0;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .related-tools-grid {
        grid-template-columns: 1fr;
    }

    .faq-section,
    .references-section {
        padding: var(--space-4) var(--space-3);
    }
}