/* ===================================
   ESTADÍSTICAS
   =================================== */

.stats {
    background-color: var(--color-gray-lighter);
    padding: var(--spacing-2xl) 0;
}

.stats__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.stat-item {
    background-color: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    text-align: center;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.stat-item__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    border-radius: var(--border-radius-md);
    color: var(--color-white);
}

.stat-item__number {
    display: block;
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
    line-height: 1.2;
}

.stat-item__label {
    display: block;
    font-size: var(--font-size-base);
    color: var(--color-gray);
    font-weight: var(--font-weight-medium);
}

/* ===================================
   PAGE HEADER
   =================================== */

.page-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: var(--color-white);
    padding: 120px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="2" fill="rgba(255,255,255,0.1)"/></svg>');
    opacity: 0.3;
}

.page-header .container {
    position: relative;
    z-index: 1;
}

.page-header__title {
    font-size: var(--font-size-5xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
    color: var(--color-white);
}

.page-header__subtitle {
    font-size: var(--font-size-xl);
    opacity: 0.95;
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
}

/* ===================================
   BOTONES
   =================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    border: none;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: center;
    white-space: nowrap;
}

.btn--primary {
    background-color: var(--color-primary);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

.btn--primary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn--secondary:hover {
    background-color: #b91c1c;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

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

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

.btn--sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-sm);
}

.btn--lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-lg);
}

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

.btn:disabled:hover {
    transform: none;
}

/* ===================================
   CARDS
   =================================== */

.card {
    background-color: var(--color-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: all var(--transition-base);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.card__image {
    width: 100%;
    height: 240px;
    overflow: hidden;
    position: relative;
}

.card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.card:hover .card__image img {
    transform: scale(1.05);
}

.card__badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background-color: var(--color-secondary);
    color: var(--color-white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 50px;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
}

.card__content {
    padding: var(--spacing-lg);
}

.card__category {
    display: inline-block;
    color: var(--color-primary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-xs);
}

.card__title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-dark);
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
}

.card__description {
    font-size: var(--font-size-base);
    color: var(--color-gray);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.card__meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--color-gray);
}

.card__meta-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.card__footer {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--color-gray-lighter);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* ===================================
   FORMULARIOS
   =================================== */

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-dark);
    margin-bottom: var(--spacing-xs);
}

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

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-base);
    font-family: var(--font-primary);
    color: var(--color-dark);
    background-color: var(--color-white);
    border: 2px solid var(--color-gray-lighter);
    border-radius: var(--border-radius-md);
    transition: all 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(59, 130, 246, 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--color-gray-light);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-error {
    display: none;
    font-size: var(--font-size-sm);
    color: var(--color-secondary);
    margin-top: var(--spacing-xs);
}

.form-input.error,
.form-select.error,
.form-textarea.error {
    border-color: var(--color-secondary);
}

.form-input.error ~ .form-error,
.form-select.error ~ .form-error,
.form-textarea.error ~ .form-error {
    display: block;
}

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

.form-checkbox input[type="checkbox"] {
    margin-top: 4px;
    width: 18px;
    height: 18px;
    cursor: pointer;
}

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

/* ===================================
   BADGES Y ETIQUETAS
   =================================== */

.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    border-radius: 50px;
    white-space: nowrap;
}

.badge--primary {
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--color-primary);
}

.badge--secondary {
    background-color: rgba(220, 38, 38, 0.1);
    color: var(--color-secondary);
}

.badge--success {
    background-color: rgba(34, 197, 94, 0.1);
    color: #16a34a;
}

.badge--warning {
    background-color: rgba(251, 191, 36, 0.1);
    color: #d97706;
}

/* ===================================
   ALERTAS
   =================================== */

.alert {
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
}

.alert__icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
}

.alert__content {
    flex: 1;
}

.alert__title {
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-xs);
}

.alert--info {
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--color-primary);
}

.alert--success {
    background-color: rgba(34, 197, 94, 0.1);
    color: #16a34a;
}

.alert--warning {
    background-color: rgba(251, 191, 36, 0.1);
    color: #d97706;
}

.alert--error {
    background-color: rgba(220, 38, 38, 0.1);
    color: var(--color-secondary);
}

/* ===================================
   LOADING / SPINNER
   =================================== */

.spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 4px solid var(--color-gray-lighter);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.spinner--lg {
    width: 60px;
    height: 60px;
    border-width: 6px;
}

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

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

/* ===================================
   MODALES
   =================================== */

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.modal.active {
    display: flex;
}

.modal__content {
    background-color: var(--color-white);
    border-radius: var(--border-radius-lg);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    animation: modalFadeIn 0.3s ease-out;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.modal__title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-dark);
}

.modal__close {
    background: none;
    border: none;
    font-size: var(--font-size-2xl);
    color: var(--color-gray);
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--transition-fast);
}

.modal__close:hover {
    color: var(--color-dark);
}

.modal__body {
    padding: var(--spacing-lg);
}

.modal__footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--color-gray-lighter);
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
}

/* ===================================
   TABLAS
   =================================== */

.table-wrapper {
    overflow-x: auto;
    margin-bottom: var(--spacing-lg);
}

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

.table thead {
    background-color: var(--color-gray-lighter);
}

.table th {
    padding: var(--spacing-md);
    text-align: left;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-dark);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table td {
    padding: var(--spacing-md);
    border-top: 1px solid var(--color-gray-lighter);
    font-size: var(--font-size-sm);
    color: var(--color-gray);
}

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

/* ===================================
   BREADCRUMBS
   =================================== */

.breadcrumbs {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--color-gray);
    margin-bottom: var(--spacing-md);
}

.breadcrumbs__link {
    color: var(--color-gray);
    transition: color var(--transition-fast);
}

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

.breadcrumbs__separator {
    color: var(--color-gray-light);
}

.breadcrumbs__current {
    color: var(--color-dark);
    font-weight: var(--font-weight-semibold);
}

/* ===================================
   PAGINATION
   =================================== */

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-xl);
}

.pagination__btn {
    min-width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-white);
    color: var(--color-gray);
    border: 1px solid var(--color-gray-lighter);
    border-radius: var(--border-radius-md);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.pagination__btn--active {
    background-color: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

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