/**
 * Styles for block_cursos_llamativos
 *
 * @package    block_cursos_llamativos
 * @copyright  2025 Tu Nombre
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

/* ============================================
   Variables y Configuración Base
   ============================================ */
:root {
    --cl-lime: #c4f022;
    --cl-lime-dark: #a8d01d;
    --cl-white: #ffffff;
    --cl-black: #000000;
    --cl-gray-light: #f5f5f5;
    --cl-gray-medium: #e0e0e0;
    --cl-gray-dark: #333333;
    --cl-blue: #4285f4;
    --cl-blue-dark: #3367d6;

    --cl-shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.08);
    --cl-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.12);
    --cl-shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.16);

    --cl-radius-sm: 8px;
    --cl-radius-md: 12px;
    --cl-radius-lg: 16px;

    --cl-transition-fast: 0.2s ease;
    --cl-transition-normal: 0.3s ease;
    --cl-transition-slow: 0.5s ease;
}

/* Reset básico para evitar desbordamientos */
.block-cursos-llamativos *,
.block-cursos-llamativos *::before,
.block-cursos-llamativos *::after {
    box-sizing: border-box;
}

/* ============================================
   Contenedor Principal
   ============================================ */
.block-cursos-llamativos {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem 1rem;
    /* Variables CSS configurables (se inyectan desde el template) */
    --cl-alternate-color: #c4f022;
    --cl-button-color: #000000;
    box-sizing: border-box;
}

/* Responsive padding para contenedor */
@media (max-width: 768px) {
    .block-cursos-llamativos {
        padding: 1rem 0.75rem;
    }
}

@media (max-width: 480px) {
    .block-cursos-llamativos {
        padding: 0.75rem 0.5rem;
    }
}

/* ============================================
   Header
   ============================================ */
.cl-header {
    margin-bottom: 2rem;
}

@media (max-width: 768px) {
    .cl-header {
        margin-bottom: 1.5rem;
    }
}

@media (max-width: 480px) {
    .cl-header {
        margin-bottom: 1rem;
    }
}

.cl-header-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--cl-black);
    margin: 0;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

/* Responsive header title */
@media (max-width: 1024px) {
    .cl-header-title {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    .cl-header-title {
        font-size: 1.75rem;
    }
}

@media (max-width: 480px) {
    .cl-header-title {
        font-size: 1.5rem;
        letter-spacing: -0.01em;
    }
}

/* ============================================
   Banner de Fechas
   ============================================ */
.cl-dates-banner {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
    font-size: 0.875rem;
    font-weight: 600;
    flex-wrap: wrap;
}

@media (max-width: 768px) {
    .cl-dates-banner {
        margin-bottom: 1.5rem;
        font-size: 0.8125rem;
        gap: 0.375rem;
    }
}

@media (max-width: 480px) {
    .cl-dates-banner {
        margin-bottom: 1rem;
        font-size: 0.75rem;
        gap: 0.25rem;
    }
}

.cl-dates-text {
    color: var(--cl-gray-dark);
}

.cl-dates-separator {
    color: var(--cl-gray-medium);
}

.cl-dates-important {
    color: var(--cl-black);
    font-weight: 700;
}

.cl-dates-highlight {
    color: var(--cl-black);
    font-weight: 700;
}

/* ============================================
   Grid de Cursos (3x2)
   ============================================ */
.cl-courses-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: minmax(450px, auto);
    gap: 1.5rem;
    margin-bottom: 2rem;
    width: 100%;
    box-sizing: border-box;
}

/* Grid 3 columnas en desktop, se expande dinámicamente */
@media (min-width: 1200px) {
    .cl-courses-grid[data-grid-columns="3"] {
        grid-template-columns: repeat(3, 1fr);
        grid-auto-rows: minmax(450px, auto);
        gap: 2rem;
    }
}

@media (min-width: 1024px) and (max-width: 1199px) {
    .cl-courses-grid[data-grid-columns="3"] {
        grid-template-columns: repeat(3, 1fr);
        grid-auto-rows: minmax(450px, auto);
        gap: 1.5rem;
    }
}

/* Tablet: 2 columnas */
@media (min-width: 768px) and (max-width: 1023px) {
    .cl-courses-grid[data-grid-columns="3"] {
        grid-template-columns: repeat(2, 1fr);
        grid-auto-rows: minmax(420px, auto);
        gap: 1.25rem;
    }
}

/* Móvil grande: 1 columna */
@media (max-width: 767px) {
    .cl-courses-grid {
        grid-template-columns: 1fr;
        grid-auto-rows: minmax(380px, auto);
        gap: 1rem;
        margin-bottom: 1.5rem;
    }
}

/* Móvil pequeño: optimizado */
@media (max-width: 480px) {
    .cl-courses-grid {
        grid-template-columns: 1fr;
        grid-auto-rows: minmax(350px, auto);
        gap: 0.875rem;
        margin-bottom: 1rem;
    }
}

/* ============================================
   Tarjetas de Curso
   ============================================ */
.cl-course-card {
    position: relative;
    border-radius: var(--cl-radius-lg);
    overflow: hidden;
    box-shadow: var(--cl-shadow-sm);
    transition: transform var(--cl-transition-normal),
    box-shadow var(--cl-transition-normal);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 450px;
    width: 100%;
    box-sizing: border-box;
}

/* Hover solo en dispositivos con hover capability */
@media (hover: hover) and (pointer: fine) {
    .cl-course-card:hover {
        transform: translateY(-8px);
        box-shadow: var(--cl-shadow-lg);
    }
}

/* Touch devices: feedback táctil */
@media (hover: none) and (pointer: coarse) {
    .cl-course-card:active {
        transform: scale(0.98);
        box-shadow: var(--cl-shadow-md);
    }
}

.cl-course-card:focus-within {
    outline: 3px solid var(--cl-lime);
    outline-offset: 2px;
}

/* Responsive min-height para cards */
@media (max-width: 1023px) {
    .cl-course-card {
        min-height: 420px;
    }
}

@media (max-width: 767px) {
    .cl-course-card {
        min-height: 380px;
        border-radius: var(--cl-radius-md);
    }
}

@media (max-width: 480px) {
    .cl-course-card {
        min-height: 350px;
        border-radius: var(--cl-radius-sm);
    }
}

/* Esquemas de color */
.cl-course-card.cl-color-lime {
    background: var(--cl-lime);
    color: var(--cl-black);
}

.cl-course-card.cl-color-white {
    background: var(--cl-white);
    color: var(--cl-black);
    border: 2px solid var(--cl-gray-medium);
}

/* Color alterno fijo: verde #00ff00 (patrón cebra) */
.cl-course-card.cl-color-alternate {
    background: #00ff00;
    color: var(--cl-black);
}

.cl-course-card.cl-color-blue {
    background: var(--cl-blue);
    color: var(--cl-white);
}

.cl-course-card.cl-color-gradient-1 {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--cl-white);
}

.cl-course-card.cl-color-gradient-2 {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: var(--cl-white);
}

.cl-course-card.cl-color-gradient-3 {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    color: var(--cl-white);
}

.cl-course-card.cl-color-gradient-4 {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    color: var(--cl-white);
}

.cl-course-card.cl-color-gradient-5 {
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    color: var(--cl-white);
}

.cl-course-card.cl-color-gradient-6 {
    background: linear-gradient(135deg, #30cfd0 0%, #330867 100%);
    color: var(--cl-white);
}

.cl-course-card.cl-color-mono-1 {
    background: var(--cl-gray-dark);
    color: var(--cl-white);
}

.cl-course-card.cl-color-mono-2 {
    background: var(--cl-gray-light);
    color: var(--cl-black);
}

/* ============================================
   Badges
   ============================================ */
.cl-badge-new {
    background: var(--cl-black);
    color: var(--cl-white);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    z-index: 10;
    animation: fadeInScale 0.5s ease;
    flex-shrink: 0;
    display: inline-block;
    white-space: nowrap;
}

@media (max-width: 768px) {
    .cl-badge-new {
        padding: 0.2rem 0.625rem;
        font-size: 0.6875rem;
        border-radius: 16px;
    }
}

@media (max-width: 480px) {
    .cl-badge-new {
        padding: 0.1875rem 0.5rem;
        font-size: 0.625rem;
        border-radius: 12px;
    }
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* ============================================
   Header de la Tarjeta (fecha y badge)
   ============================================ */
.cl-card-header {
    position: relative;
    padding: 1rem 1.5rem 0;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    min-height: 2.5rem;
    gap: 0.75rem;
}

@media (max-width: 768px) {
    .cl-card-header {
        padding: 0.875rem 1.25rem 0;
        min-height: 2.25rem;
    }
}

@media (max-width: 480px) {
    .cl-card-header {
        padding: 0.75rem 1rem 0;
        min-height: 2rem;
        gap: 0.5rem;
    }
}

.cl-header-left {
    flex: 1;
}

/* ============================================
   Fechas del Curso (derecha superior, dos líneas)
   ============================================ */
.cl-card-dates {
    font-size: 0.875rem;
    font-weight: 600;
    opacity: 0.9;
    text-align: right;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    line-height: 1.3;
}

@media (max-width: 768px) {
    .cl-card-dates {
        font-size: 0.8125rem;
        line-height: 1.25;
    }
}

@media (max-width: 480px) {
    .cl-card-dates {
        font-size: 0.75rem;
        line-height: 1.2;
    }
}

.cl-date-line1 {
    display: block;
}

.cl-date-line2 {
    display: block;
    margin-top: 0.125rem;
}

.cl-date-empty {
    min-height: 1.2em;
    visibility: hidden;
}

/* ============================================
   Contenido de la Tarjeta
   ============================================ */
.cl-card-content {
    padding: 0 1.5rem 1.5rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

@media (max-width: 768px) {
    .cl-card-content {
        padding: 0 1.25rem 1.25rem;
    }
}

@media (max-width: 480px) {
    .cl-card-content {
        padding: 0 1rem 1rem;
    }
}

.cl-course-title-wrapper {
    margin-top: -0.5rem; /* Subir para que calce con la fecha */
    overflow: hidden;
}

@media (max-width: 480px) {
    .cl-course-title-wrapper {
        margin-top: -0.375rem;
    }
}

.cl-course-title {
    font-size: 1.75rem;
    font-weight: 800;
    line-height: 1.2;
    margin: 0.5rem 0 0.5rem 0;
    letter-spacing: -0.01em;
}

.cl-course-tipo {
    display: block;
    font-size: 1.75rem;
}

.cl-course-subtitle {
    display: block;
    font-size: 1.75rem;
}

/* Responsive typography para títulos */
@media (max-width: 1024px) {
    .cl-course-title,
    .cl-course-tipo,
    .cl-course-subtitle {
        font-size: 1.5rem;
    }
}

@media (max-width: 768px) {
    .cl-course-title,
    .cl-course-tipo,
    .cl-course-subtitle {
        font-size: 1.375rem;
        line-height: 1.25;
    }
}

@media (max-width: 480px) {
    .cl-course-title,
    .cl-course-tipo,
    .cl-course-subtitle {
        font-size: 1.25rem;
        line-height: 1.3;
        margin: 0.375rem 0;
    }
}

.cl-course-link {
    color: inherit;
    text-decoration: none;
    transition: opacity var(--cl-transition-fast);
    display: block;
    word-wrap: break-word;
    overflow-wrap: break-word;
    hyphens: auto;
}

@media (hover: hover) and (pointer: fine) {
    .cl-course-link:hover {
        opacity: 0.8;
    }
}

/* ============================================
   Instructor (con espacio reservado)
   ============================================ */
.cl-instructor-wrapper {
    min-height: 1.5rem;
    margin-bottom: 1rem;
    overflow: hidden;
}

@media (max-width: 480px) {
    .cl-instructor-wrapper {
        min-height: 1.25rem;
        margin-bottom: 0.875rem;
    }
}

.cl-instructor {
    font-size: 0.9rem;
    font-weight: 500;
    margin: 0;
    opacity: 0.85;
    color: #000000;
}

@media (max-width: 768px) {
    .cl-instructor {
        font-size: 0.875rem;
    }
}

@media (max-width: 480px) {
    .cl-instructor {
        font-size: 0.8125rem;
    }
}

.cl-instructor-empty {
    visibility: hidden;
    height: 0;
    margin: 0;
    padding: 0;
}

/* ============================================
   Imagen del Curso (mejor ajuste)
   ============================================ */
.cl-card-image-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: var(--cl-radius-md);
    overflow: hidden;
    margin-bottom: 1rem;
    background: rgba(0, 0, 0, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

@media (max-width: 480px) {
    .cl-card-image-wrapper {
        border-radius: var(--cl-radius-sm);
        margin-bottom: 0.875rem;
    }
}

.cl-course-image {
    width: 100%;
    min-width: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform var(--cl-transition-slow);
    display: block;
}

/* Hover solo en dispositivos con hover */
@media (hover: hover) and (pointer: fine) {
    .cl-course-card:hover .cl-course-image {
        transform: scale(1.05);
    }
}

/* Fallback para imágenes que no cargan */
.cl-card-image-wrapper img[src=""],
.cl-card-image-wrapper img:not([src]) {
    opacity: 0.3;
}

/* ============================================
   Barra de Progreso
   ============================================ */
.cl-progress-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.8);
    padding: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.cl-progress-bar {
    flex-grow: 1;
    height: 6px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 3px;
    overflow: hidden;
}

.cl-progress-fill {
    height: 100%;
    background: var(--cl-lime);
    border-radius: 3px;
    transition: width var(--cl-transition-normal);
}

.cl-progress-text {
    color: var(--cl-white);
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
}

@media (max-width: 480px) {
    .cl-progress-overlay {
        padding: 0.625rem;
        gap: 0.5rem;
    }

    .cl-progress-text {
        font-size: 0.6875rem;
    }

    .cl-progress-bar {
        height: 5px;
    }
}

/* ============================================
   Botones de Acción
   ============================================ */
.cl-card-actions {
    margin-top: auto;
    display: flex;
    justify-content: flex-end;
}

.cl-btn-wrapper {
    width: 50%;
    display: flex;
    justify-content: flex-end;
}

@media (max-width: 480px) {
    .cl-btn-wrapper {
        width: 100%;
        justify-content: stretch;
    }
}

.cl-btn {
    display: inline-block;
    width: 100%;
    padding: 0.875rem 1.5rem;
    border-radius: var(--cl-radius-md);
    font-size: 1rem;
    font-weight: 700;
    text-align: center;
    text-decoration: none;
    transition: all var(--cl-transition-fast);
    border: none;
    cursor: pointer;
    flex-shrink: 0;
    /* Mejorar área táctil en móviles */
    min-height: 44px;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

/* Responsive buttons */
@media (max-width: 768px) {
    .cl-btn {
        padding: 0.75rem 1.25rem;
        font-size: 0.9375rem;
        min-height: 42px;
    }
}

@media (max-width: 480px) {
    .cl-btn {
        padding: 0.6875rem 1rem;
        font-size: 0.875rem;
        min-height: 40px;
        border-radius: var(--cl-radius-sm);
    }
}

/* ============================================
   Botones de Acción (sistema de colores fijo)
   ============================================ */
/* Card blanco → botón verde #00ff00 */
.cl-color-white .cl-btn-enroll,
.cl-color-white .cl-btn-enrolled {
    background: #00ff00;
    color: #000000;
    border: 2px solid #00ff00;
}

/* Card verde → botón negro #000000 */
.cl-color-alternate .cl-btn-enroll,
.cl-color-alternate .cl-btn-enrolled {
    background: #000000;
    color: #ffffff;
    border: 2px solid #000000;
}

/* Hover effects - solo en dispositivos con hover */
@media (hover: hover) and (pointer: fine) {
    .cl-btn-enroll:hover,
    .cl-btn-enrolled:hover {
        opacity: 0.85;
        transform: scale(1.02);
        box-shadow: var(--cl-shadow-md);
    }

    .cl-btn-viewmore:hover {
        background: var(--cl-black);
        color: var(--cl-white);
        transform: translateX(4px);
    }

    .cl-btn-viewmore:hover .cl-arrow-icon {
        transform: translateX(4px);
    }
}

/* Touch feedback para dispositivos táctiles */
@media (hover: none) and (pointer: coarse) {
    .cl-btn-enroll:active,
    .cl-btn-enrolled:active {
        opacity: 0.9;
        transform: scale(0.98);
    }

    .cl-btn-viewmore:active {
        background: var(--cl-black);
        color: var(--cl-white);
        transform: scale(0.98);
    }
}

/* ============================================
   Paginación
   ============================================ */
.cl-pagination {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-top: 2rem;
}

/* Regresar usa el mismo estilo que Ver más (.cl-btn-viewmore); solo cambia la flecha */
.cl-arrow-back {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

@media (max-width: 768px) {
    .cl-pagination {
        margin-top: 1.5rem;
    }
}

@media (max-width: 480px) {
    .cl-pagination {
        margin-top: 1rem;
        padding: 0 0.5rem;
    }
}

.cl-btn-viewmore {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2.5rem;
    background: var(--cl-white);
    color: var(--cl-black);
    border: 2px solid var(--cl-black);
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--cl-transition-normal);
    min-height: 44px;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    text-decoration: none; /* Enlace "Ver más" sin subrayado */
}

.cl-btn-viewmore.is-loading {
    pointer-events: none;
}

/* Responsive viewmore button */
@media (max-width: 768px) {
    .cl-btn-viewmore {
        padding: 0.875rem 2rem;
        font-size: 0.9375rem;
        min-height: 42px;
    }
}

@media (max-width: 480px) {
    .cl-btn-viewmore {
        padding: 0.75rem 1.5rem;
        font-size: 0.875rem;
        min-height: 40px;
        width: 100%;
        justify-content: center;
    }
}

.cl-arrow-icon {
    width: 20px;
    height: 20px;
    transition: transform var(--cl-transition-fast);
    flex-shrink: 0;
}

@media (max-width: 480px) {
    .cl-arrow-icon {
        width: 18px;
        height: 18px;
    }
}

/* ============================================
   Loading States
   ============================================ */
.cl-loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.95);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.cl-loading-overlay p {
    margin-top: 1rem;
    font-size: 1rem;
    color: var(--cl-gray-dark);
}

@media (max-width: 480px) {
    .cl-loading-overlay p {
        font-size: 0.875rem;
        margin-top: 0.875rem;
    }

    .cl-spinner {
        width: 40px;
        height: 40px;
        border-width: 3px;
    }
}

.cl-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--cl-gray-medium);
    border-top-color: var(--cl-lime);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* ============================================
   Empty State
   ============================================ */
.cl-no-courses {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--cl-gray-dark);
    font-size: 1.125rem;
}

@media (max-width: 768px) {
    .cl-no-courses {
        padding: 3rem 1.5rem;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .cl-no-courses {
        padding: 2rem 1rem;
        font-size: 0.9375rem;
    }
}

/* ============================================
   Skeleton Loading
   ============================================ */
.cl-skeleton {
    background: linear-gradient(
            90deg,
            var(--cl-gray-light) 25%,
            var(--cl-gray-medium) 50%,
            var(--cl-gray-light) 75%
    );
    background-size: 200% 100%;
    animation: loading 1.5s ease-in-out infinite;
}

@keyframes loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* ============================================
   Responsive Design - Mejoras adicionales
   ============================================ */

/* Mejoras para tablets en modo landscape */
@media (min-width: 768px) and (max-width: 1024px) and (orientation: landscape) {
    .cl-courses-grid {
        gap: 1.5rem;
    }

    .cl-course-card {
        min-height: 400px;
    }
}

/* Mejoras para pantallas muy pequeñas */
@media (max-width: 360px) {
    .block-cursos-llamativos {
        padding: 0.5rem 0.375rem;
    }

    .cl-header-title {
        font-size: 1.375rem;
    }

    .cl-course-title,
    .cl-course-tipo,
    .cl-course-subtitle {
        font-size: 1.125rem;
    }

    .cl-course-card {
        min-height: 320px;
    }

    .cl-card-header {
        padding: 0.625rem 0.875rem 0;
    }

    .cl-card-content {
        padding: 0 0.875rem 0.875rem;
    }
}

/* Mejoras para pantallas extra grandes */
@media (min-width: 1400px) {
    .cl-courses-grid {
        gap: 2rem;
    }
}

/* ============================================
   Accessibility
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

.cl-course-card:focus-visible {
    outline: 3px solid var(--cl-lime);
    outline-offset: 4px;
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    .cl-btn-viewmore,
    .cl-pagination {
        display: none;
    }

    .cl-course-card {
        break-inside: avoid;
        page-break-inside: avoid;
    }
}