/* ==============================================
   COMPONENTES UI UNIFICADOS
   ============================================== */

/* ===== CARDS ===== */
.card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    transition: all var(--transition-normal);
}

.card:hover {
    border-color: rgba(var(--primary-rgb), 0.3);
    box-shadow: var(--shadow-md);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--glass-border);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.card-body {
    color: var(--text-secondary);
}

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

.card-stat {
    text-align: center;
    padding: var(--spacing-lg);
}

.card-stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-xs);
}

.card-stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.card-stat-icon {
    font-size: 3rem;
    opacity: 0.2;
    margin-bottom: var(--spacing-sm);
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 12px 24px;
    font-size: 0.875rem;
    font-weight: 600;
    border: none;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
}

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

.btn-primary {
    /* --gradient-cta, no --gradient-primary: el decorativo termina en cian y
       el texto blanco encima solo contrasta 1.70. Ver el token en
       design-system.css. */
    background: var(--gradient-cta);
    color: white;
    box-shadow: 0 4px 12px rgba(var(--primary-rgb), 0.3);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(var(--primary-rgb), 0.4);
}

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

.btn-secondary:hover:not(:disabled) {
    background: var(--bg-quaternary);
    border-color: var(--primary);
}

.btn-success {
    background: var(--gradient-success);
    color: white;
    box-shadow: 0 4px 12px rgba(var(--success-rgb), 0.3);
}

.btn-success:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(var(--success-rgb), 0.4);
}

.btn-danger {
    background: var(--gradient-danger);
    color: white;
    box-shadow: 0 4px 12px rgba(var(--danger-rgb), 0.3);
}

.btn-danger:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(var(--danger-rgb), 0.4);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--glass-border);
}

.btn-ghost:hover:not(:disabled) {
    background: var(--glass-bg);
    border-color: var(--primary);
    color: var(--primary);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.8125rem;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1rem;
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
}

.btn-link {
    background: transparent;
    color: var(--primary);
    border: none;
    text-decoration: none;
    padding: 8px 16px;
}

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

/* ===== FORMS ===== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-md);
    color: var(--text-primary);
    font-size: 0.875rem;
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--bg-secondary);
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.1);
}

.form-control::placeholder {
    color: var(--text-disabled);
}

.form-control:read-only {
    background: var(--bg-tertiary);
    cursor: default;
}

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

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23a0a0a8' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 40px;
}

.form-check {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.form-check-input {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.input-group {
    position: relative;
    display: flex;
    align-items: stretch;
    width: 100%;
}

.input-group .form-control {
    flex: 1;
}

/* ===== ALERTS ===== */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.alert-success {
    background: rgba(var(--success-rgb), 0.1);
    border: 1px solid rgba(var(--success-rgb), 0.3);
    color: var(--accent-success);
}

.alert-warning {
    background: rgba(var(--warning-rgb), 0.1);
    border: 1px solid rgba(var(--warning-rgb), 0.3);
    color: var(--accent-warning);
}

.alert-danger {
    background: rgba(var(--danger-rgb), 0.1);
    border: 1px solid rgba(var(--danger-rgb), 0.3);
    color: var(--accent-danger);
}

.alert-info {
    background: rgba(var(--info-rgb), 0.1);
    border: 1px solid rgba(var(--info-rgb), 0.3);
    color: var(--accent-info);
}

/* ===== BADGES ===== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--border-radius-full);
}

.badge-primary {
    background: rgba(var(--primary-rgb), 0.15);
    color: var(--primary);
}

.badge-success {
    background: rgba(var(--success-rgb), 0.15);
    color: var(--accent-success);
}

.badge-warning {
    background: rgba(var(--warning-rgb), 0.15);
    color: var(--accent-warning);
}

.badge-danger {
    background: rgba(var(--danger-rgb), 0.15);
    color: var(--accent-danger);
}

.badge-secondary {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--glass-border);
}

.badge-sm {
    padding: 2px 8px;
    font-size: 0.7rem;
}

.badge-info {
    background: rgba(var(--info-rgb), 0.15);
    color: var(--accent-info);
}

/* ===== MODALS ===== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    z-index: var(--z-modal-backdrop);
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-xl);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow: hidden;
    animation: scaleIn var(--transition-normal);
    box-shadow: var(--shadow-xl);
}

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

.modal-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.modal-close {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--glass-bg);
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--accent-danger);
    color: white;
}

.modal-body {
    padding: var(--spacing-lg);
    max-height: calc(90vh - 150px);
    overflow-y: auto;
}

.modal-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--spacing-sm);
}

/* ===== TABLES ===== */
.table-container {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

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

.table thead {
    background: var(--bg-tertiary);
}

.table th {
    padding: var(--spacing-md);
    text-align: left;
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table td {
    padding: var(--spacing-md);
    border-top: 1px solid var(--glass-border);
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.table tbody tr {
    transition: background var(--transition-fast);
}

.table tbody tr:hover {
    background: var(--glass-bg);
}

/* ===== TABS ===== */
.tabs {
    display: flex;
    gap: var(--spacing-sm);
    border-bottom: 2px solid var(--glass-border);
    margin-bottom: var(--spacing-lg);
}

.tab {
    padding: 12px 24px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-weight: 600;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all var(--transition-fast);
}

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

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

.tab-content {
    display: none;
}

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

/* ===== PROGRESS BARS ===== */
.progress {
    width: 100%;
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: var(--border-radius-full);
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-full);
    transition: width var(--transition-normal);
}

/* ===== DIVIDERS ===== */
.divider {
    height: 1px;
    background: var(--glass-border);
    margin: var(--spacing-lg) 0;
}

.divider-text {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
    margin: var(--spacing-lg) 0;
}

.divider-text::before,
.divider-text::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--glass-border);
}

/* ===== LOADING SPINNER ===== */
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--glass-border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.spinner-sm {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

/* ===== PAGINATION ===== */
.pagination {
    display: flex;
    list-style: none;
    gap: 8px;
    padding: 0;
    margin: 0;
}

.page-item {
    list-style: none;
}

.page-link {
    padding: 8px 16px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-md);
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    cursor: pointer;
}

.page-link:hover {
    background: var(--bg-tertiary);
    border-color: var(--primary);
    color: var(--primary);
}

.page-item.active .page-link {
    background: var(--gradient-cta); /* lleva el numero de pagina encima */
    border-color: transparent;
    color: white;
}

.page-item.disabled .page-link {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* ===== UTILITIES ===== */
.text-nowrap {
    white-space: nowrap;
}

.text-truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}