/* ==========================================================================
   1. RESET, VARIABLES Y FONDO MATRICIAL (WHITE PREMIUM)
   ========================================================================== */
:root {
    --mondelinn-purple: #667eea;
    --mondelinn-purple-glow: rgba(102, 126, 234, 0.25);
    --glass-bg: rgba(255, 255, 255, 0.92); 
    --glass-border: rgba(102, 126, 234, 0.25); 
    --glass-shadow: 0 10px 40px rgba(0, 0, 0, 0.04), 0 4px 20px rgba(102, 126, 234, 0.1);
    --text-dark: #1e293b;
    --text-muted: #64748b;
    --bg-primary: #f8fafc;      
    --gradient-premium: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --spacing-section: 150px;   
    --transition-premium: all 0.6s cubic-bezier(0.16, 1, 0.3, 1); 
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    color: var(--text-dark);
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
    position: relative;
    overflow-x: hidden;
    background-color: var(--bg-primary); 
    background-image: radial-gradient(rgba(102, 126, 234, 0.15) 1.5px, transparent 1.5px);
    background-size: 40px 40px; 
}

/* ==========================================================================
   2. CONTENEDOR PRINCIPAL Y SECCIONES
   ========================================================================== */
.about-container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 60px 24px;
    position: relative;
    z-index: 1;
    perspective: 1200px; 
}

.about-section {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 90px;
    padding: var(--spacing-section) 0;
    position: relative;
}

.about-section.row-reverse {
    flex-direction: row-reverse;
}

.section-content {
    flex: 1;
}

/* ==========================================================================
   3. CONFIGURACIÓN DE LA ANIMACIÓN DE ENTRADA CINEMÁTICA
   ========================================================================== */
body.has-js .about-section.scroll-reveal .text-container-glass {
    opacity: 0;
    transform: translateX(-60px) rotateY(15deg);
    transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1), transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: transform, opacity;
}

body.has-js .about-section.scroll-reveal .image-content {
    opacity: 0;
    transform: translateY(80px) scale(0.92);
    transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1), transform 1.3s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: transform, opacity;
}

body.has-js .about-section.scroll-reveal.row-reverse .text-container-glass {
    transform: translateX(60px) rotateY(-15deg);
}

body.has-js .about-section.scroll-reveal.is-visible .text-container-glass {
    opacity: 1;
    transform: translateX(0) rotateY(0);
}

body.has-js .about-section.scroll-reveal.is-visible .image-content {
    opacity: 1;
    transform: translateY(0) scale(1);
}

/* ==========================================================================
   4. NÚMEROS GIGANTES DETRÁS
   ========================================================================== */
.section-number {
    position: absolute;
    font-size: 11rem;
    font-weight: 900;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.08) 0%, rgba(118, 75, 162, 0.02) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    top: -20px;
    left: -40px;
    user-select: none;
    z-index: -1;
    transition: var(--transition-premium);
}

body.has-js .about-section.scroll-reveal .section-number {
    opacity: 0;
    transform: scale(0.7);
    transition: all 1.5s cubic-bezier(0.16, 1, 0.3, 1);
}

body.has-js .about-section.scroll-reveal.is-visible .section-number {
    opacity: 1;
    transform: scale(1);
}

.about-section.row-reverse .section-number {
    left: auto;
    right: -40px;
}

.about-section:hover .section-number {
    transform: translateY(-8px) scale(1.03);
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.15) 0%, rgba(118, 75, 162, 0.04) 100%);
    -webkit-background-clip: text;
}

/* ==========================================================================
   5. CONTENEDOR CON GRADIENTS Y GLASSMORPHISM
   ========================================================================== */
.text-container-glass {
    max-width: 500px;
    background: var(--glass-bg); 
    backdrop-filter: blur(16px);          
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    padding: 40px;
    border-radius: 24px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.02);
    position: relative;
    overflow: hidden;
    transition: var(--transition-premium);
}

.gradient-corner-accent {
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 40px;
    background: var(--mondelinn-purple);
    border-radius: 0 0 4px 0;
    transition: var(--transition-premium);
}

.about-section:hover .text-container-glass {
    background: #ffffff;
    border-color: rgba(102, 126, 234, 0.4); 
    box-shadow: var(--glass-shadow);
    transform: translateY(-4px);
}

.about-section:hover .gradient-corner-accent {
    height: 100%; 
}

/* ==========================================================================
   6. TIPOGRAFÍA INTERNA Y ENLACES
   ========================================================================== */
.section-tag {
    display: inline-block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--mondelinn-purple);
    font-weight: 700;
    margin-bottom: 12px;
}

.text-content h2 {
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--text-dark);
    line-height: 1.2;
    margin-bottom: 20px;
    letter-spacing: -0.5px;
}

.text-content p {
    font-size: 1.02rem;
    color: var(--text-muted);
    text-align: justify;
    margin-bottom: 28px;
}

.section-link-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-dark);
    text-decoration: none;
    transition: var(--transition-premium);
}

.section-link-btn span {
    transition: var(--transition-premium);
    color: var(--mondelinn-purple);
}

.about-section:hover .section-link-btn {
    color: var(--mondelinn-purple);
}

.about-section:hover .section-link-btn span {
    transform: translateX(6px); 
}

/* ==========================================================================
   7. IMÁGENES ASIMÉTRICAS
   ========================================================================== */
.image-content {
    position: relative;
    z-index: 1;
}

.image-content::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: 20px;
    left: 20px;
    background: var(--mondelinn-purple);
    opacity: 0.1;
    z-index: -1;
    border-radius: 24px;
    transition: var(--transition-premium);
}

.about-section.row-reverse .image-content::before {
    top: 20px;
    left: -20px;
}

.image-content img {
    width: 100%;
    max-height: 440px;
    object-fit: cover;
    display: block;
    border-radius: 24px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    transition: var(--transition-premium);
    border: 1px solid rgba(0,0,0,0.03);
}

.about-section:hover .image-content img {
    transform: translate(-12px, -12px);
    box-shadow: var(--glass-shadow);
}

.about-section:hover .image-content::before {
    transform: translate(12px, 12px);
    opacity: 0.15;
}

/* ==========================================================================
   8. RESPONSIVE DESIGN (Móviles y Tablets)
   ========================================================================== */
@media (max-width: 992px) {
    .about-section { gap: 40px; }
    .text-content h2 { font-size: 2rem; }
    .text-container-glass { padding: 30px; }
}

@media (max-width: 768px) {
    :root {
        --spacing-section: 60px;
    }

    .about-section, 
    .about-section.row-reverse {
        flex-direction: column;
        gap: 45px;
        padding: var(--spacing-section) 0;
    }

    /* [1] AJUSTE DEL NÚMERO GIGANTE */
    .section-number {
        font-size: 6rem;
        top: -15px;
        left: 50%;
        transform: translateX(-50%) !important;
        width: 100%;
        text-align: center;
    }
    .about-section.row-reverse .section-number {
        right: auto;
    }

    /* [2] SIMPLIFICACIÓN DE ANIMACIONES */
    body.has-js .about-section.scroll-reveal .text-container-glass,
    body.has-js .about-section.scroll-reveal.row-reverse .text-container-glass,
    body.has-js .about-section.scroll-reveal .image-content {
        transform: translateY(30px) rotateY(0) scale(1);
    }

    body.has-js .about-section.scroll-reveal.is-visible .text-container-glass,
    body.has-js .about-section.scroll-reveal.is-visible .image-content {
        transform: translateY(0);
    }

    /* [3] CONTENEDOR DE TEXTO EN HOVER */
    .text-container-glass {
        max-width: 100%;
        text-align: center;
        background: var(--glass-bg); 
        padding: 30px 20px;
        transition: transform 0.3s ease-out, box-shadow 0.3s ease-out;
    }
    
    .text-content {
        background: transparent !important;
    }

    .about-section:hover .text-container-glass {
        background: #ffffff !important; 
        transform: none !important; 
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05); 
    }

    /* [4] EL ACENTO PÚRPURA EXPANSIBLE */
    .gradient-corner-accent {
        width: 100%;
        height: 4px;
        border-radius: 4px 4px 0 0;
        top: 0;
        left: 0;
        transition: height 0.2s ease-in-out;
    }

    .about-section:hover .gradient-corner-accent {
        height: 4px !important; 
    }

    /* [5] AJUSTE DE IMAGEN */
    .image-content {
        width: calc(100% - 20px); 
        max-width: 480px;
        margin: 0 auto;
        transform: translateX(-10px);
    }

    .image-content::before,
    .about-section.row-reverse .image-content::before {
        top: 15px;
        left: 15px;
    }

    .about-section:hover .image-content img {
        transform: none;
        box-shadow: 0 15px 30px rgba(0,0,0,0.05);
    }
    
    .about-section:hover .image-content::before {
        transform: none;
        opacity: 0.1;
    }

    /* [6] TIPOGRAFÍA */
    .text-content p {
        text-align: center;
    }

    .section-link-btn {
        justify-content: center;
    }
}