/* cursos.css - Estilos específicos para la página de cursos */

/* Logo Styles */
.nav-logo {
    display: flex;
    align-items: center;
    transition: transform 0.3s ease;
    text-decoration: none;
}

.nav-logo:hover {
    transform: scale(1.05);
}

.logo {
    height: 45px;
    width: auto;
    transition: all 0.3s ease;
}

.logo:hover {
    filter: brightness(1.1);
}

/* Course Highlight Effect */
.course-highlight {
    transform: scale(1.02);
    box-shadow: 0 20px 40px rgba(74, 144, 226, 0.3) !important;
    border: 2px solid var(--primary-color) !important;
    transition: all 0.3s ease !important;
}

@keyframes pulse {
    0% { transform: scale(1.02); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1.02); }
}

.course-highlight {
    animation: pulse 2s ease-in-out 3;
}

/* Direct Link Styles */
.direct-link-button {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-left: 0.5rem;
}

.direct-link-button:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
}

/* Hero Section */
.courses-hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    padding: 8rem 0 4rem;
    color: white;
    position: relative;
    overflow: hidden;
}

.courses-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="1" fill="rgba(255,255,255,0.1)"/></svg>') repeat;
    animation: float 20s infinite linear;
    pointer-events: none;
}

.courses-hero__content {
    text-align: center;
    position: relative;
    z-index: 2;
}

.courses-hero__title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.courses-hero__subtitle {
    font-size: 1.25rem;
    margin-bottom: 3rem;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Filtros */
.courses-filters {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    max-width: 800px;
    margin: 0 auto;
}

.filter-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    min-width: 180px;
}

.filter-label {
    font-size: 0.9rem;
    font-weight: 500;
    opacity: 0.9;
}

.filter-select {
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 0.5rem;
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
    color: var(--text-color);
    width: 100%;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.2);
}

/* Grid de Cursos */
.courses-grid {
    padding: 4rem 0;
    background: var(--background-color);
}

.courses-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

/* Course Cards */
.course-card {
    background: white;
    border-radius: 1rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: all 0.3s ease;
    position: relative;
    display: flex;
    flex-direction: column;
}

.course-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.course-card__image {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.course-card__badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.5rem 1rem;
    border-radius: 1rem;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.course-card__badge--popular {
    background: var(--accent-color);
    color: white;
}

.course-card__badge--new {
    background: #10b981;
    color: white;
}

.course-icon {
    font-size: 3rem;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.course-card__content {
    padding: 2rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.course-card__header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.course-card__title {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-color);
    margin: 0;
    flex-grow: 1;
    margin-right: 1rem;
}

.course-card__level {
    background: var(--background-color);
    color: var(--text-secondary);
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.8rem;
    font-weight: 500;
    white-space: nowrap;
}

.course-card__description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
    flex-grow: 1;
}

.course-card__info {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.course-info-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.course-info-icon {
    font-size: 1rem;
}

.course-card__features {
    margin-bottom: 1.5rem;
}

.course-card__features h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-color);
}

.course-card__features ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.course-card__features li {
    padding: 0.25rem 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
    position: relative;
    padding-left: 1.5rem;
}

.course-card__features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
}

.course-card__schedule {
    background: var(--background-color);
    padding: 1rem;
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
}

.course-card__schedule h4 {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.course-card__schedule p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin: 0.25rem 0;
}

.course-card__footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-top: auto;
    flex-wrap: wrap;
}

.course-card__actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    align-items: center;
}

.course-card__price {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.price-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.price-amount {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

.btn--course {
    padding: 0.75rem 1.5rem;
    white-space: nowrap;
}

/* No courses message */
.no-courses-message {
    text-align: center;
    padding: 4rem 2rem;
    background: white;
    border-radius: 1rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.no-courses-content {
    max-width: 400px;
    margin: 0 auto;
}

.no-courses-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    display: block;
}

.no-courses-message h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.no-courses-message p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.6;
}

/* CTA Section */
.courses-cta {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    padding: 4rem 0;
    color: white;
    text-align: center;
}

.courses-cta__content {
    max-width: 600px;
    margin: 0 auto;
}

.courses-cta__title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.courses-cta__subtitle {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    line-height: 1.6;
}

/* Modal específico para cursos */
.enrollment-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.enrollment-form .form-group {
    margin-bottom: 1.5rem;
}

.enrollment-form .form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-color);
}

.enrollment-form .form-group input,
.enrollment-form .form-group select,
.enrollment-form .form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 0.5rem;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.enrollment-form .form-group input:focus,
.enrollment-form .form-group select:focus,
.enrollment-form .form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 2rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .courses-hero__title {
        font-size: 2.5rem;
    }
    
    .courses-filters {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-group {
        min-width: auto;
    }
    
    .courses-container {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .course-card__header {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .course-card__title {
        margin-right: 0;
    }
    
    .course-card__footer {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
    }
    
    .course-card__price {
        align-items: center;
    }
    
    .enrollment-form .form-row {
        grid-template-columns: 1fr;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .courses-cta__title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .courses-hero {
        padding: 6rem 0 3rem;
    }
    
    .courses-hero__title {
        font-size: 2rem;
    }
    
    .courses-hero__subtitle {
        font-size: 1rem;
    }
    
    .courses-filters {
        padding: 1.5rem;
        gap: 1rem;
    }
    
    .course-card__content {
        padding: 1.5rem;
    }
    
    .course-card__info {
        flex-direction: column;
        gap: 0.5rem;
    }
}

/* Animaciones */
@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

.course-card {
    animation: fadeInUp 0.6s ease-out;
}

.course-card:nth-child(even) {
    animation-delay: 0.1s;
}

.course-card:nth-child(3n) {
    animation-delay: 0.2s;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Estados de carga y filtrado */
.course-card.filtering {
    transition: all 0.3s ease;
}

.course-card.hidden {
    display: none;
}

.course-card.fade-out {
    opacity: 0;
    transform: scale(0.9);
}

/* Mejoras de accesibilidad */
.filter-select:focus,
.btn--course:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Dark mode support (opcional) */
.course-card {
    background: #1f2937;
    border: 1px solid #374151;
}

.course-card__title {
    color: #f9fafb;
}

.course-card__description,
.course-info-item {
    color: #d1d5db;
}

.course-card__schedule {
    background: #111827;
}

.filter-select {
    background: #374151;
    color: #f9fafb;
    border-color: #4b5563;
}