/* Reset y base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-light);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Header */
.header {
    background: var(--primary-color);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: white;
    font-weight: 700;
    font-size: 1.25rem;
}

.tagline {
    font-size: 0.75rem;
    background: rgba(255, 255, 255, 0.2);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    margin-left: 0.5rem;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    width: 24px;
    height: 24px;
    justify-content: space-between;
}

.mobile-menu-btn span {
    display: block;
    height: 2px;
    width: 100%;
    background-color: white;
    transition: all 0.3s ease;
}

.nav-menu {
    display: flex;
    gap: 1.5rem;
}

.nav-link {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.3s ease;
}

.nav-link:hover {
    opacity: 0.8;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #fef5f7 0%, #fce8ec 100%);
    padding: 2rem 1rem;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.hero-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.converter-card {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

@media (min-width: 768px) {
    .input-group {
        flex-direction: row;
    }
    
    .input-field {
        flex: 1;
    }
}

.button-group {
    display: flex;
    gap: 0.5rem;
}

.btn-primary, .btn-secondary {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    font-size: 0.875rem;
}

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

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

.btn-secondary {
    background: #f7fafc;
    color: var(--text-dark);
    border: 1px solid #e2e8f0;
}

.btn-secondary:hover {
    background: #edf2f7;
    border-color: #cbd5e0;
}

.input-hint {
    font-size: 0.875rem;
    color: var(--text-light);
    margin-top: 0.5rem;
    text-align: left;
}

/* Features */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.feature {
    text-align: center;
    padding: 1.5rem 1rem;
}

.feature-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 1rem;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.feature h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.feature p {
    color: var(--text-light);
    font-size: 0.875rem;
}

/* Sections */
.section {
    padding: 4rem 1rem;
}

.section-title {
    font-size: 1.875rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-dark);
}

/* Steps */
.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.step {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.step-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.step-content p {
    color: var(--text-light);
}

/* History */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-light);
}

.empty-state svg {
    margin-bottom: 1rem;
    color: #cbd5e0;
}

.history-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid #e2e8f0;
}

.text-link {
    background: none;
    border: none;
    color: var(--primary-color);
    cursor: pointer;
    text-decoration: underline;
    font-size: 0.875rem;
}

.history-items {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.history-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem;
    border-radius: var(--border-radius);
    background: var(--bg-light);
    transition: background-color 0.3s ease;
}

.history-item:hover {
    background: #edf2f7;
}

.history-thumbnail {
    width: 60px;
    height: 40px;
    border-radius: 4px;
    overflow: hidden;
    flex-shrink: 0;
}

.history-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.history-info {
    flex: 1;
}

.history-title {
    font-weight: 500;
    margin-bottom: 0.25rem;
    font-size: 0.875rem;
}

.history-date {
    font-size: 0.75rem;
    color: var(--text-light);
}

/* Videos Grid */
.videos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.video-card {
    border-radius: var(--border-radius);
    overflow: hidden;
    background: white;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.video-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.video-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.video-thumbnail {
    position: relative;
    padding-top: 56.25%; /* 16:9 aspect ratio */
    overflow: hidden;
}

.video-thumbnail img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.video-card:hover .video-overlay {
    opacity: 1;
}

.video-overlay svg {
    color: white;
}

.video-info {
    padding: 1rem;
}

.video-title {
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-stats {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-light);
}

.text-center {
    text-align: center;
}

/* FAQ */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid #e2e8f0;
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    text-align: left;
    transition: color 0.3s ease;
}

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

.faq-question svg {
    transition: transform 0.3s ease;
}

.faq-item.active .faq-question svg {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding-bottom: 1.5rem;
    color: var(--text-light);
}

/* Legal Notice */
.legal-notice {
    background: #f7fafc;
    padding: 2rem 1rem;
    border-top: 1px solid #e2e8f0;
}

.legal-notice h3 {
    font-size: 1.125rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.legal-notice p {
    color: var(--text-light);
    font-size: 0.875rem;
    line-height: 1.6;
}

/* Footer */
.footer {
    background: var(--secondary-color);
    color: white;
    padding: 3rem 1rem 1.5rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-direction: column;
    gap: 2rem;
}

@media (min-width: 768px) {
    .footer-content {
        flex-direction: row;
    }
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-brand .logo {
    color: white;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    justify-content: center;
}

.footer-links a {
    color: white;
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.footer-links a:hover {
    opacity: 0.8;
}

.footer-bottom {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
}

.footer-bottom p:first-child {
    margin-bottom: 0.5rem;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1rem;
}

.modal-content {
    background: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    max-width: 400px;
    width: 100%;
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Utility classes */
.hidden {
    display: none !important;
}

.bg-white {
    background: white;
}

/* Responsive */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--primary-color);
        flex-direction: column;
        padding: 1rem;
        transform: translateY(-100%);
        opacity: 0;
        transition: all 0.3s ease;
        pointer-events: none;
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }
    
    .hero-title {
        font-size: 1.5rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .section {
        padding: 2rem 1rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .videos-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }
    
    .button-group {
        width: 100%;
    }
    
    .btn-primary, .btn-secondary {
        flex: 1;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .videos-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .steps {
        grid-template-columns: 1fr;
    }
}
* Reset y base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-light);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Header */
.header {
    background: var(--primary-color);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: white;
    font-weight: 700;
    font-size: 1.25rem;
}

.tagline {
    font-size: 0.75rem;
    background: rgba(255, 255, 255, 0.2);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    margin-left: 0.5rem;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    width: 24px;
    height: 24px;
    justify-content: space-between;
}

.mobile-menu-btn span {
    display: block;
    height: 2px;
    width: 100%;
    background-color: white;
    transition: all 0.3s ease;
}

.nav-menu {
    display: flex;
    gap: 1.5rem;
}

.nav-link {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.3s ease;
}

.nav-link:hover {
    opacity: 0.8;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #fef5f7 0%, #fce8ec 100%);
    padding: 2rem 1rem;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.hero-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.converter-card {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

@media (min-width: 768px) {
    .input-group {
        flex-direction: row;
    }
    
    .input-field {
        flex: 1;
    }
}

.button-group {
    display: flex;
    gap: 0.5rem;
}

.btn-primary, .btn-secondary {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    font-size: 0.875rem;
}

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

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

.btn-secondary {
    background: #f7fafc;
    color: var(--text-dark);
    border: 1px solid #e2e8f0;
}

.btn-secondary:hover {
    background: #edf2f7;
    border-color: #cbd5e0;
}

.input-hint {
    font-size: 0.875rem;
    color: var(--text-light);
    margin-top: 0.5rem;
    text-align: left;
}

/* Features */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.feature {
    text-align: center;
    padding: 1.5rem 1rem;
}

.feature-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 1rem;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.feature h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.feature p {
    color: var(--text-light);
    font-size: 0.875rem;
}

/* Sections */
.section {
    padding: 4rem 1rem;
}

.section-title {
    font-size: 1.875rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-dark);
}

/* Steps */
.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.step {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.step-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.step-content p {
    color: var(--text-light);
}

/* History */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-light);
}

.empty-state svg {
    margin-bottom: 1rem;
    color: #cbd5e0;
}

.history-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid #e2e8f0;
}

.text-link {
    background: none;
    border: none;
    color: var(--primary-color);
    cursor: pointer;
    text-decoration: underline;
    font-size: 0.875rem;
}

.history-items {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.history-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem;
    border-radius: var(--border-radius);
    background: var(--bg-light);
    transition: background-color 0.3s ease;
}

.history-item:hover {
    background: #edf2f7;
}

.history-thumbnail {
    width: 60px;
    height: 40px;
    border-radius: 4px;
    overflow: hidden;
    flex-shrink: 0;
}

.history-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.history-info {
    flex: 1;
}

.history-title {
    font-weight: 500;
    margin-bottom: 0.25rem;
    font-size: 0.875rem;
}

.history-date {
    font-size: 0.75rem;
    color: var(--text-light);
}

/* Videos Grid */
.videos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.video-card {
    border-radius: var(--border-radius);
    overflow: hidden;
    background: white;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.video-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.video-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.video-thumbnail {
    position: relative;
    padding-top: 56.25%; /* 16:9 aspect ratio */
    overflow: hidden;
}

.video-thumbnail img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.video-card:hover .video-overlay {
    opacity: 1;
}

.video-overlay svg {
    color: white;
}

.video-info {
    padding: 1rem;
}

.video-title {
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-stats {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-light);
}

.text-center {
    text-align: center;
}

/* FAQ */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid #e2e8f0;
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    text-align: left;
    transition: color 0.3s ease;
}

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

.faq-question svg {
    transition: transform 0.3s ease;
}

.faq-item.active .faq-question svg {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding-bottom: 1.5rem;
    color: var(--text-light);
}

/* Legal Notice */
.legal-notice {
    background: #f7fafc;
    padding: 2rem 1rem;
    border-top: 1px solid #e2e8f0;
}

.legal-notice h3 {
    font-size: 1.125rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.legal-notice p {
    color: var(--text-light);
    font-size: 0.875rem;
    line-height: 1.6;
}

/* Footer */
.footer {
    background: var(--secondary-color);
    color: white;
    padding: 3rem 1rem 1.5rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-direction: column;
    gap: 2rem;
}

@media (min-width: 768px) {
    .footer-content {
        flex-direction: row;
    }
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-brand .logo {
    color: white;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    justify-content: center;
}

.footer-links a {
    color: white;
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.footer-links a:hover {
    opacity: 0.8;
}

.footer-bottom {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
}

.footer-bottom p:first-child {
    margin-bottom: 0.5rem;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1rem;
}

.modal-content {
    background: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    max-width: 400px;
    width: 100%;
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Utility classes */
.hidden {
    display: none !important;
}

.bg-white {
    background: white;
}

/* Responsive */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--primary-color);
        flex-direction: column;
        padding: 1rem;
        transform: translateY(-100%);
        opacity: 0;
        transition: all 0.3s ease;
        pointer-events: none;
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }
    
    .hero-title {
        font-size: 1.5rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .section {
        padding: 2rem 1rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .videos-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }
    
    .button-group {
        width: 100%;
    }
    
    .btn-primary, .btn-secondary {
        flex: 1;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .videos-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .steps {
        grid-template-columns: 1fr;
    }
}
/* Estilos para el modal de audio */
#audio-player-modal .modal-content {
    max-width: 500px;
    width: 90%;
}

/* Estilos para la animación de onda */
.wave-animation {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 25px;
    height: 20px;
}

.wave-bar {
    width: 3px;
    height: 100%;
    background-color: currentColor;
    border-radius: 3px;
    animation: wave 1s ease infinite;
    transform-origin: bottom;
}

.wave-bar:nth-child(2) { animation-delay: 0.1s; }
.wave-bar:nth-child(3) { animation-delay: 0.2s; }
.wave-bar:nth-child(4) { animation-delay: 0.3s; }
.wave-bar:nth-child(5) { animation-delay: 0.4s; }

@keyframes wave {
    0%, 100% { transform: scaleY(0.5); }
    50% { transform: scaleY(1.2); }
}

/* Estilos para botones de reproducción */
.play-btn.playing {
    background-color: var(--primary-color);
    color: white;
}

/* Estilos mejorados para el historial */
.history-section {
    padding: 2rem 0;
}

.history-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid #e2e8f0;
}

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

.clear-history-btn {
    background: none;
    border: none;
    color: var(--primary-color);
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem;
    border-radius: 6px;
    transition: all 0.3s ease;
}

.clear-history-btn:hover {
    background: rgba(141, 2, 31, 0.1);
}

.history-items {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.history-item {
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid #f1f5f9;
    overflow: hidden;
}

.history-item:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
    transform: translateY(-2px);
}

.history-item-content {
    display: flex;
    align-items: center;
    padding: 1rem;
    gap: 1rem;
}

.history-thumbnail {
    position: relative;
    width: 80px;
    height: 60px;
    border-radius: 8px;
    overflow: hidden;
    flex-shrink: 0;
}

.history-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.history-play-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    cursor: pointer;
}

.history-thumbnail:hover .history-play-overlay {
    opacity: 1;
}

.history-play-overlay svg {
    color: white;
    width: 24px;
    height: 24px;
}

.history-info {
    flex: 1;
    min-width: 0;
}

.history-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-dark);
    margin: 0 0 0.5rem 0;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.history-meta {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.history-date {
    font-size: 0.75rem;
    color: #64748b;
    font-weight: 500;
}

.history-id {
    font-size: 0.7rem;
    color: #94a3b8;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
}

.history-actions {
    display: flex;
    gap: 0.5rem;
    flex-shrink: 0;
}

.history-action-btn {
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: #f8fafc;
    color: #64748b;
}

.history-action-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.history-play:hover {
    background: var(--primary-color);
    color: white;
}

.history-download:hover {
    background: #10b981;
    color: white;
}

/* Estados vacíos */
.empty-state {
    text-align: center;
    padding: 3rem 2rem;
    color: #64748b;
}

.empty-state-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    color: #cbd5e1;
}

.empty-state h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #475569;
}

.empty-state p {
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
}

/* Notificaciones */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
    border-left: 4px solid #3b82f6;
    transform: translateX(400px);
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 1000;
    max-width: 400px;
}

.notification.show {
    transform: translateX(0);
    opacity: 1;
}

.notification-success {
    border-left-color: #10b981;
}

.notification-error {
    border-left-color: #ef4444;
}

.notification-warning {
    border-left-color: #f59e0b;
}

.notification-content {
    padding: 1rem 1.5rem 1rem 1rem;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.notification-message {
    flex: 1;
    font-size: 0.875rem;
    line-height: 1.4;
    color: #374151;
}

.notification-close {
    background: none;
    border: none;
    color: #9ca3af;
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 4px;
    transition: color 0.3s ease;
    flex-shrink: 0;
}

.notification-close:hover {
    color: #6b7280;
}

/* Responsive */
@media (max-width: 768px) {
    .history-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .history-item-content {
        padding: 0.75rem;
        gap: 0.75rem;
    }
    
    .history-thumbnail {
        width: 60px;
        height: 45px;
    }
    
    .history-title {
        font-size: 0.875rem;
    }
    
    .history-actions {
        flex-direction: column;
    }
    
    .history-action-btn {
        width: 32px;
        height: 32px;
    }
    
    .history-action-btn svg {
        width: 16px;
        height: 16px;
    }
    
    .notification {
        left: 20px;
        right: 20px;
        max-width: none;
        transform: translateY(-100px);
    }
    
    .notification.show {
        transform: translateY(0);
    }
}

@media (max-width: 480px) {
    .history-meta {
        flex-direction: row;
        justify-content: space-between;
    }
    
    .history-item-content {
        flex-wrap: wrap;
    }
    
    .history-info {
        min-width: calc(100% - 140px);
    }
}

/* Utilidades para flexbox (necesarias para el historial) */
.flex {
    display: flex;
}

.justify-between {
    justify-content: space-between;
}

.items-center {
    align-items: center;
}

.justify-center {
    justify-content: center;
}

/* Utilidades para márgenes y padding */
.mr-3 {
    margin-right: 0.75rem;
}

.mt-1 {
    margin-top: 0.25rem;
}

.space-x-2 > * + * {
    margin-left: 0.5rem;
}

/* Utilidades para texto */
.text-sm {
    font-size: 0.875rem;
}

.text-xs {
    font-size: 0.75rem;
}

.font-medium {
    font-weight: 500;
}

.text-gray-800 {
    color: var(--text-dark);
}

.text-gray-500 {
    color: var(--text-light);
}

.text-gray-700 {
    color: #4a5568;
}

/* Utilidades para fondos y bordes */
.bg-gray-100 {
    background-color: #f7fafc;
}

.hover\:bg-gray-200:hover {
    background-color: #edf2f7;
}

.rounded-lg {
    border-radius: var(--border-radius);
}

.rounded-full {
    border-radius: 9999px;
}

.w-16 {
    width: 4rem;
}

.h-12 {
    height: 3rem;
}

.w-8 {
    width: 2rem;
}

.h-8 {
    height: 2rem;
}

.w-4 {
    width: 1rem;
}

.h-4 {
    height: 1rem;
}

.w-5 {
    width: 1.25rem;
}

.h-5 {
    height: 1.25rem;
}

.object-cover {
    object-fit: cover;
}
/* Estilos espec¨ªficos para videos.php */

.videos-section {
    padding: 2rem 0 4rem;
}

/* Overlay de reproducci¨®n */
.video-play-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.video-card:hover .video-play-overlay {
    opacity: 1;
}

.video-play-overlay svg {
    color: white;
}

/* Paginaci¨®n mejorada */
.pagination-container {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid #e2e8f0;
}

.pagination {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.pagination-content {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.pagination-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: white;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.pagination-btn:hover:not(.disabled) {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

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

.pagination-info {
    padding: 0.75rem 1.5rem;
    background: #f8fafc;
    border-radius: 8px;
    font-size: 0.9rem;
    color: var(--text-light);
}

.pagination-numbers {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pagination-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.pagination-number:hover {
    background: #f8fafc;
    border-color: #cbd5e0;
}

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

.pagination-ellipsis {
    padding: 0 0.5rem;
    color: var(--text-light);
}

/* Estados vac¨ªos */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: #64748b;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: background-color 0.3s ease;
}

.btn-primary:hover {
    background: var(--primary-dark);
}

/* Responsive para paginaci¨®n */
@media (max-width: 768px) {
    .pagination-content {
        width: 100%;
        justify-content: space-between;
    }
    
    .pagination-info {
        display: none;
    }
    
    .pagination-numbers {
        flex-wrap: wrap;
        justify-content: center;
    }
}

/* Filtros (para futura implementaci¨®n) */
.filters-bar {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    margin-bottom: 2rem;
}

/* Mejoras de accesibilidad */
@media (prefers-reduced-motion: reduce) {
    .video-card,
    .pagination-btn,
    .pagination-number {
        transition: none;
    }
}