:root {
    --black: #000000;
    --dark-gray: #1d1d1f;
    --medium-gray: #86868b;
    --light-gray: #f5f5f7;
    --white: #ffffff;
    --accent: #2997ff;
    --glass-bg: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(255, 255, 255, 0.4);
    --shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
    --transition-slow: all 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 4rem;
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-full: 9999px;
}

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');
@import url('https://fonts.googleapis.com/icon?family=Material+Icons');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--white);
    color: var(--dark-gray);
    line-height: 1.6;
    font-size: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

header {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 1.2rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.05);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    animation: slideDown 0.5s ease;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
    }
    to {
        transform: translateY(0);
    }
}

header h1 {
    color: var(--black);
    font-size: clamp(1.5rem, 1.3rem + 1vw, 2rem);
    font-weight: 600;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

header h1 img {
    height: 2rem;
    width: auto;
}

.hero {
    background-image: url('img/Background.jpg');
    background-size: cover;
    background-position: center;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    overflow: hidden;
    margin-top: 0;
    z-index: 1;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    pointer-events: none;
}

.hero-content {
    padding: 2rem;
    color: var(--white);
    max-width: 80%;
    position: relative;
    z-index: 5;
    animation: fadeIn 1s ease-out;
    transform-style: preserve-3d;
    perspective: 1000px;
    margin: 0 auto;
    text-align: center;
}

.hero-content h2 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    margin-bottom: 1.5rem;
    font-weight: 700;
    text-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    transform: translateZ(50px);
    letter-spacing: -0.02em;
    animation: float 6s ease-in-out infinite;
}

.hero-content p {
    font-size: clamp(1.25rem, 2vw, 1.5rem);
    opacity: 0.9;
    font-weight: 300;
    transform: translateZ(30px);
    animation: float 6s ease-in-out infinite reverse;
}

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

.preview-float {
    position: absolute;
    bottom: -60px;
    left: 50%;
    transform: translateX(-50%) translateZ(20px);
    width: 55%;
    max-width: 550px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
    border-radius: 12px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
    z-index: 3;
    animation: float 6s ease-in-out infinite;
    visibility: visible !important;
    opacity: 1 !important;
    display: block !important;
    transform-style: preserve-3d;
    perspective: 1000px;
}

.preview-float img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    transition: var(--transition);
    filter: drop-shadow(0 5px 15px rgba(0, 0, 0, 0.2));
    transform-style: preserve-3d;
}

.preview-float:hover {
    transform: translateX(-50%) translateZ(20px) scale(1.05);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.4);
}

.section-title {
    text-align: center;
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin: var(--spacing-xl) 0 var(--spacing-lg);
    color: var(--black);
    letter-spacing: -0.03em;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--accent);
}

.terapias-grid, .comentarios-grid, .recuerdos-container, .comentarios-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) auto;
    max-width: 1200px;
    opacity: 1 !important;
    visibility: visible !important;
    position: relative;
    z-index: 2;
}

.terapias-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: var(--spacing-lg);
}

.terapia-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    transform: translateY(0);
    position: relative;
    transform-style: preserve-3d;
    perspective: 1000px;
    opacity: 1;
}

.terapia-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.terapia-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: var(--transition);
}

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

.terapia-content {
    padding: 1.5rem;
}

.terapia-content h4 {
    font-size: var(--font-size-xl);
    margin-bottom: 0.5rem;
    color: var(--black);
    font-weight: 600;
}

.terapia-content p {
    color: var(--medium-gray);
    font-size: var(--font-size-base);
    line-height: 1.6;
}

.comentarios-section {
    background-color: var(--light-gray);
    padding: 6rem 2rem;
    position: relative;
    overflow: hidden;
    text-align: center;
    z-index: 2;
    margin: 4rem auto;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
    max-width: 1400px;
}

.comentarios-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
}

.comentario {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 2rem;
    width: 100%;
    max-width: 350px;
    box-shadow: var(--shadow);
    position: relative;
    transition: var(--transition);
    transform-style: preserve-3d;
    perspective: 1000px;
    opacity: 1;
    transform: translateY(0);
}

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

.comentario-texto {
    font-size: var(--font-size-lg);
    line-height: 1.6;
    margin-bottom: 1.5rem;
    color: var(--dark-gray);
    position: relative;
}

.comentario-texto::before {
    content: '\201C';
    font-size: 4rem;
    color: var(--accent);
    position: absolute;
    top: -2rem;
    left: -1rem;
    opacity: 0.2;
}

.comentario-autor {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.comentario-autor-info {
    display: flex;
    flex-direction: column;
}

.comentario-autor-nombre {
    font-weight: 600;
    color: var(--black);
}

.comentario-autor-rol {
    font-size: var(--font-size-sm);
    color: var(--medium-gray);
}

.recuerdos-section {
    padding: var(--spacing-xl) var(--spacing-md);
    background: var(--white);
    position: relative;
    overflow: hidden;
}

.carousel-container {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
}

.carousel-button {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: var(--white);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    z-index: 10;
    transition: var(--transition);
}

.carousel-button:hover {
    background: var(--accent);
    color: var(--white);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

.carousel-button.prev {
    left: 10px;
}

.carousel-button.next {
    right: 10px;
}

.carousel-dots {
    display: flex;
    justify-content: center;
    margin-top: 1.5rem;
    gap: 0.5rem;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--light-gray);
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background: var(--accent);
    transform: scale(1.2);
}

.recuerdos-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    gap: 1.5rem;
    padding: 1.5rem 0;
    perspective: 1000px;
    scrollbar-width: thin;
    scrollbar-color: var(--accent) var(--light-gray);
}

.recuerdos-container::-webkit-scrollbar {
    height: 8px;
}

.recuerdos-container::-webkit-scrollbar-track {
    background: var(--light-gray);
    border-radius: var(--radius-full);
}

.recuerdos-container::-webkit-scrollbar-thumb {
    background-color: var(--accent);
    border-radius: var(--radius-full);
}

.recuerdo-card {
    height: 400px;
    min-width: 300px;
    flex: 0 0 300px;
    position: relative;
    transform-style: preserve-3d;
    transition: transform 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    cursor: pointer;
    opacity: 1;
    transform: translateY(0);
    scroll-snap-align: center;
}

.recuerdo-card:hover {
    transform: rotateY(10deg) rotateX(5deg);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

.recuerdo-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

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

.download-section {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
    background: var(--black);
    margin-top: var(--spacing-xl);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
}

.download-btn {
    background: var(--white);
    color: var(--black);
    border: none;
    padding: 1.2rem 3.5rem;
    font-size: var(--font-size-lg);
    border-radius: var(--radius-full);
    cursor: pointer;
    font-weight: 600;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    z-index: 1;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    outline: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.download-btn .material-icons {
    font-size: 1.5rem;
}

.download-btn-small {
    padding: 0.8rem 1.5rem;
    font-size: var(--font-size-base);
    background: var(--dark-gray);
    color: var(--white);
}

.download-btn-link {
    background: transparent;
    border: 2px solid var(--white);
    color: var(--white);
    text-decoration: none;
}

.download-btn:hover {
    background: var(--accent);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
}

footer {
    background-color: var(--black);
    color: var(--white);
    text-align: center;
    padding: var(--spacing-lg);
    margin-top: auto;
    position: relative;
}

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

@media (min-width: 768px) {
    body {
        font-size: 18px;
    }

    header {
        padding: 1.5rem 4rem;
    }

    .hero-content h2 {
        font-size: 4.5rem;
    }

    .terapias-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .comentarios-container {
        flex-direction: row;
    }

    .recuerdos-container {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Estilos para los artículos informativos */
.info-section, .features-section, .benefits-section {
    max-width: 1200px;
    margin: 3rem auto;
    padding: 2.5rem;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    z-index: 2;
    overflow: hidden;
}

.info-section:hover, .features-section:hover, .benefits-section:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.info-section h3, .features-section h3, .benefits-section h3 {
    font-size: var(--font-size-3xl);
    margin-bottom: 1.5rem;
    color: var(--black);
    position: relative;
    display: inline-block;
}

.info-section h3::after, .features-section h3::after, .benefits-section h3::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 50px;
    height: 3px;
    background: var(--accent);
    border-radius: var(--radius-full);
}

.info-section p {
    font-size: var(--font-size-lg);
    line-height: 1.8;
    color: var(--dark-gray);
}

.features-section ul, .benefits-section ul {
    list-style: none;
    padding: 0;
}

.features-section li, .benefits-section li {
    display: flex;
    align-items: center;
    margin-bottom: 1.2rem;
    font-size: var(--font-size-lg);
    line-height: 1.6;
}

.features-section .material-icons, .benefits-section .material-icons {
    color: var(--accent);
    margin-right: 1rem;
    font-size: 1.5rem;
}

@media (max-width: 767px) {
    .hero {
        height: auto;
        min-height: 100vh;
        padding-top: 80px;
        padding-bottom: 350px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }
    
    .hero-content {
        max-width: 90%;
        margin: 0 auto 50px auto;
        text-align: center;
        padding-top: 2rem;
        z-index: 4;
        position: relative;
    }
    
    .hero-content h2 {
        font-size: 2.5rem;
        transform: none !important;
    }
    
    .hero-content p {
        font-size: 1rem;
        transform: none !important;
    }
    
    .preview-float {
        width: 85%;
        bottom: 150px;
        max-width: 300px;
        transform: translateX(-50%) translateZ(-20px) !important;
        z-index: 2;
    }

    .terapias-grid {
        grid-template-columns: 1fr;
    }

    .comentarios-container {
        flex-direction: column;
        align-items: center;
    }
    
    .carousel-container {
        padding: 0 1rem;
    }
    
    .carousel-button {
        width: 36px;
        height: 36px;
    }
    
    .carousel-button.prev {
        left: 5px;
    }
    
    .carousel-button.next {
        right: 5px;
    }
    
    .recuerdos-container {
        padding: 0.5rem 0;
    }
    
    .recuerdo-card {
        min-width: 220px;
        flex: 0 0 220px;
        height: 300px;
    }
    
    .dot {
        width: 8px;
        height: 8px;
    }
    
    .info-section, .features-section, .benefits-section {
        padding: 1.5rem;
        margin: 2rem 1rem;
        border-radius: var(--radius-md);
    }
    
    .info-section h3, .features-section h3, .benefits-section h3 {
        font-size: var(--font-size-2xl);
    }
    
    .info-section p, .features-section li, .benefits-section li {
        font-size: var(--font-size-base);
    }
}