/* ==========================================
   VARIABLES Y CONFIGURACIÓN BASE
   ========================================== */
:root {
    --rgb-bg: 5, 10, 25;
    --rgb-cyan: 0, 255, 230;
    --rgb-magenta: 255, 0, 180;
    --rgb-white: 245, 247, 250;
    --rgb-gray: 140, 150, 170;
    
    --font-title: 'Space Grotesk', sans-serif;
    --font-body: 'Urbanist', sans-serif;
    
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
}

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

html {
    scroll-behavior: smooth;
    background-color: rgb(var(--rgb-bg));
    color: rgb(var(--rgb-white));
    font-family: var(--font-body);
    overflow-x: hidden;
}

/* ==========================================
   SISTEMA DE CENTRADO MAESTRO
   ========================================== */
section {
    min-height: 100vh;
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    padding: 80px 5%;
}

.centered-container {
    width: 100%;
    max-width: 1200px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

/* ==========================================
   BACKGROUND DINÁMICO
   ========================================== */
#quantum-canvas {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    z-index: 1; pointer-events: none;
}

.ambient-glow {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: 2;
    background: radial-gradient(circle at 10% 20%, rgba(var(--rgb-cyan), 0.04) 0%, transparent 50%),
                radial-gradient(circle at 90% 80%, rgba(var(--rgb-magenta), 0.04) 0%, transparent 50%);
    pointer-events: none;
}

main { position: relative; z-index: 3; width: 100%; }

/* ==========================================
   ANIMACIONES AL SCROLL
   ========================================== */
.scroll-reveal {
    opacity: 0; transform: translateY(40px);
    transition: all 1s cubic-bezier(0.215, 0.610, 0.355, 1);
}
.scroll-reveal.active { opacity: 1; transform: translateY(0); }

/* ==========================================
   COMPONENTES VISUALES
   ========================================== */
.welcome-title {
    font-family: var(--font-title);
    font-size: clamp(3rem, 8vw, 7.5rem);
    font-weight: 700; line-height: 1.1; text-transform: uppercase;
    background: linear-gradient(135deg, #ffffff 30%, rgba(var(--rgb-cyan), 0.8) 70%, rgb(var(--rgb-magenta)));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    animation: titlePulse 6s infinite alternate ease-in-out;
}

.welcome-tagline {
    font-size: clamp(1rem, 2.5vw, 1.8rem); font-weight: 300; letter-spacing: 6px;
    text-transform: uppercase; color: rgba(var(--rgb-cyan), 0.9); margin-top: 20px;
}

.scroll-indicator {
    position: absolute; bottom: 40px; display: flex; flex-direction: column;
    align-items: center; color: rgb(var(--rgb-gray)); gap: 10px;
}
.scroll-indicator i { animation: bounce 2s infinite; color: rgb(var(--rgb-magenta)); }

.section-header { margin-bottom: 50px; }
.section-tag { color: rgb(var(--rgb-magenta)); letter-spacing: 4px; font-weight: 700; display: block; margin-bottom: 10px; }
.section-title { font-family: var(--font-title); font-size: clamp(2rem, 4vw, 3.5rem); }

/* ==========================================
   INFOGRAFÍA Y BIOGRAFÍA (RESPONSIVE)
   ========================================== */
.bio-container {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    width: 100%;
    text-align: left;
    align-items: center;
}

.bio-subtitle {
    font-family: var(--font-title);
    color: rgb(var(--rgb-magenta));
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 10px;
}

.bio-lead {
    font-family: var(--font-title);
    font-size: clamp(1.4rem, 2.3vw, 2.1rem);
    line-height: 1.4;
    color: rgb(var(--rgb-white));
    margin-bottom: 20px;
}

.bio-lead strong {
    color: rgb(var(--rgb-cyan));
    font-weight: 700;
    text-shadow: 0 0 15px rgba(var(--rgb-cyan), 0.2);
}

.bio-description {
    font-size: clamp(1rem, 1.1vw, 1.15rem);
    line-height: 1.7;
    color: rgb(var(--rgb-gray));
}

.bio-infographic {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.info-shard {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: 25px;
    display: flex;
    gap: 20px;
    align-items: flex-start;
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    backdrop-filter: blur(5px);
}

.shard-icon {
    font-size: 1.8rem;
    color: rgb(var(--rgb-cyan));
    background: rgba(var(--rgb-cyan), 0.05);
    width: 55px;
    height: 55px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border: 1px solid rgba(var(--rgb-cyan), 0.1);
    transition: all 0.3s ease;
}

.shard-content h4 {
    font-family: var(--font-title);
    font-size: 1.25rem;
    color: rgb(var(--rgb-white));
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}

.shard-content p {
    font-size: 0.95rem;
    line-height: 1.5;
    color: rgb(var(--rgb-gray));
}

.highlighted-shard {
    background: linear-gradient(135deg, rgba(var(--rgb-magenta), 0.03) 0%, rgba(var(--rgb-bg), 0.2) 100%);
    border-color: rgba(var(--rgb-magenta), 0.2);
}
.highlighted-shard .shard-icon {
    color: rgb(var(--rgb-magenta));
    background: rgba(var(--rgb-magenta), 0.05);
    border-color: rgba(var(--rgb-magenta), 0.1);
}

.info-shard:hover {
    transform: translateX(10px);
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(var(--rgb-cyan), 0.3);
    box-shadow: -5px 5px 20px rgba(var(--rgb-cyan), 0.05);
}

.highlighted-shard:hover {
    border-color: rgba(var(--rgb-magenta), 0.5);
    box-shadow: -5px 5px 20px rgba(var(--rgb-magenta), 0.05);
}

.info-shard:hover .shard-icon {
    transform: scale(1.05) rotate(5deg);
    background: rgb(var(--rgb-cyan));
    color: rgb(var(--rgb-bg));
}

.highlighted-shard:hover .shard-icon {
    background: rgb(var(--rgb-magenta));
    color: rgb(var(--rgb-white));
}

/* ==========================================
   GRILLAS Y CAROUSEL
   ========================================== */
.brand-carousel-track { display: flex; gap: 30px; justify-content: center; flex-wrap: wrap; width: 100%; }
.brand-node {
    background: var(--glass-bg); border: 1px solid var(--glass-border); border-radius: 12px;
    padding: 30px; text-align: center; min-width: 250px; max-width: 350px;
}
.brand-node:hover { border-color: rgba(var(--rgb-magenta), 0.4); transform: translateY(-5px); }

/* Arreglo para los iconos con enlaces */
.brand-logo-placeholder a {
    color: inherit;
    text-decoration: none;
    display: inline-block;
    transition: transform 0.3s ease;
}
.brand-logo-placeholder a:hover {
    transform: scale(1.1);
}
.brand-logo-placeholder { font-size: 2.5rem; color: rgba(var(--rgb-white), 0.3); margin-bottom: 15px; }
.brand-node:hover .brand-logo-placeholder { color: rgb(var(--rgb-cyan)); }
.brand-name { font-weight: 700; font-family: var(--font-title); margin-bottom: 5px; }
.brand-metric { font-size: 0.85rem; color: rgb(var(--rgb-gray)); line-height: 1.4; }

.projects-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px; width: 100%;
}
.project-card {
    border: 1px solid var(--glass-border); border-radius: 20px; height: 300px;
    display: flex; flex-direction: column; justify-content: flex-end; padding: 30px; text-align: left;
    background: linear-gradient(to top, rgba(var(--rgb-bg), 0.9) 10%, rgba(var(--rgb-bg), 0.2) 100%);
    transition: transform 0.4s;
}
.project-card:hover { transform: translateY(-8px); border-color: rgba(var(--rgb-cyan), 0.3); }
.project-category { color: rgb(var(--rgb-cyan)); font-size: 0.8rem; letter-spacing: 2px; }

.social-icons { display: flex; gap: 15px; margin-top: 20px; }
.social-btn {
    width: 45px; height: 45px; border-radius: 50%; border: 1px solid var(--glass-border);
    display: flex; align-items: center; justify-content: center; color: white; text-decoration: none;
}
.social-btn:hover { border-color: rgb(var(--rgb-cyan)); color: rgb(var(--rgb-cyan)); }

@keyframes titlePulse { 0% { filter: drop-shadow(0 0 20px rgba(var(--rgb-cyan), 0.1)); } 100% { filter: drop-shadow(0 0 40px rgba(var(--rgb-magenta), 0.2)); } }
@keyframes bounce { 0%, 20%, 50%, 80%, 100% { transform: translateY(0); } 40% { transform: translateY(-10px); } }

/* ==========================================
   ICONOS PNG EN TARJETAS DE PROYECTO
   ========================================== */

/* La caja que contiene el PNG */
.project-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 20px;
    background: rgba(var(--rgb-cyan), 0.05);
    border: 1px solid rgba(var(--rgb-cyan), 0.15);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

/* El tamaño de la imagen PNG para que no se desborde */
.project-icon img {
    width: 32px; /* Ajusta este valor si tu PNG se ve muy grande o pequeño */
    height: auto;
    object-fit: contain;
    transition: transform 0.4s ease;
    /* OPCIONAL: Si tus PNG son completamente blancos, puedes descomentar la 
       siguiente línea para darles un brillo Cyan artificial */
    /* filter: drop-shadow(0px 0px 5px rgba(0, 255, 230, 0.8)); */
}

/* Efecto Hover: Al pasar el mouse por la tarjeta, el icono reacciona */
.project-card:hover .project-icon {
    background: rgba(var(--rgb-cyan), 0.15);
    border-color: rgb(var(--rgb-cyan));
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(var(--rgb-cyan), 0.2);
}

/* Efecto Hover: La imagen PNG hace un leve zoom */
.project-card:hover .project-icon img {
    transform: scale(1.15);
}

/* ==========================================
   FOOTER
   ========================================== */
footer {
    background: rgba(3, 6, 16, 0.8);
    border-top: 1px solid var(--glass-border);
    padding: 80px 10% 40px 10%;
    width: 100%;
    position: relative;
    z-index: 3;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    text-align: left;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr repeat(2, 1fr);
    gap: 60px;
    margin-bottom: 60px;
    width: 100%;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.footer-brand-side h3 {
    font-family: var(--font-title);
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -1px;
    margin-bottom: 20px;
    background: linear-gradient(to right, #fff, rgb(var(--rgb-cyan)));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.footer-brand-side p { color: rgb(var(--rgb-gray)); max-width: 320px; margin-bottom: 25px; }
.footer-links h4 { font-family: var(--font-title); font-size: 1.1rem; text-transform: uppercase; letter-spacing: 2px; margin-bottom: 25px; color: rgb(var(--rgb-magenta)); }
.footer-links ul { list-style: none; }
.footer-links ul li { margin-bottom: 15px; }
.footer-links ul li a { color: rgb(var(--rgb-gray)); text-decoration: none; transition: color 0.3s; }
.footer-links ul li a:hover { color: rgb(var(--rgb-cyan)); }

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.05); padding-top: 30px;
    display: flex; justify-content: space-between; align-items: center;
    color: rgba(140, 150, 170, 0.6); font-size: 0.9rem; max-width: 1200px; margin: 0 auto;
}

/* ==========================================
   MEDIA QUERIES (RESPONSIVE FIRST)
   ========================================== */
@media (max-width: 992px) {
    .bio-container { grid-template-columns: 1fr; gap: 45px; text-align: center; }
    .bio-description { margin-bottom: 10px; }
    .info-shard { text-align: left; }
    .info-shard:hover { transform: translateY(-5px); }
    
    .footer-grid { grid-template-columns: 1fr; gap: 40px; text-align: center; }
    .footer-brand-side p { margin: 0 auto 25px auto; }
    .social-icons { justify-content: center; }
}

@media (max-width: 768px) {
    section { padding: 60px 5%; }
    .projects-grid { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
    .footer-bottom { flex-direction: column; gap: 15px; text-align: center; }
    .brand-node { min-width: 100%; }
}