/* ===========================
   HEADER — ESTILO PREMIUM
=========================== */

.header {
    width: 100%;
    padding: 20px 40px;
    background: rgba(0, 0, 0, 0.35); 
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    position: fixed;
    top: 0;
    left: 0;
    z-index: 999; 
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    font-family: "Raleway", sans-serif;
}

.header-container {
    max-width: 1500px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    
}

/* NAV MENU */
.nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 32px;
}

.nav ul li a {
    text-decoration: none;
    color: #fff;
    font-weight: 400;
    font-size: 15px;
    opacity: 0.85;
    transition: 0.3s ease;
    
}

.nav ul li a:hover {
    opacity: 1;
}

/* BOTÓN GLASS */
.btn-glass {
    padding: 10px 22px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.22);
    color: #fff;
    text-decoration: none;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 500;
    backdrop-filter: blur(10px);
    transition: 0.25s ease;
}

.btn-glass:hover {
    background: rgba(255, 255, 255, 0.18);
    border-color: rgba(255, 255, 255, 0.35);
}


/* ===========================
   MOBILE (a ajustar luego)
=========================== */
@media (max-width: 768px) {
    .btn-glass {
        padding: 10px 16px;
        font-size: 13px;
    }

    .header {
        padding: 16px 24px;
    }
}

/* ===========================
   HERO — ESTILO PREMIUM
=========================== */
/* Eliminar márgenes y paddings globales que generan borde blanco */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Asegura que html y body ocupen el 100% sin bordes */
html, body {
    width: 100%;
    height: 100%;
    background: #000; /* o tu color base */
}


.hero {
    width: 100%;
    min-height: 100vh;
    background: linear-gradient(135deg, #0d0d0d 0%, #141414 50%, #000000 100%);
    padding-top: 120px;
    padding-bottom: 80px;
    display: flex;
    align-items: center;
    font-family: "Raleway", sans-serif;
}

.hero-container {
    max-width: 1500px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    gap: 60px;
}

/* ====== TEXTO ====== */

.hero-text h1 {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.25;
    color: #fff;
    margin-bottom: 24px;
    
}

.hero-sub {
    font-size: 18px;
    color: rgba(255,255,255,0.70);
    max-width: 520px;
    margin-bottom: 32px;
}

/* ====== BOTONES ====== */

.btn-primary {
    background: #fff;
    color: #000;
    padding: 12px 26px;
    border-radius: 14px;
    text-decoration: none;
    font-weight: 600;
    transition: 0.25s ease;
}

.btn-primary:hover {
    opacity: 0.85;
}

.btn-link {
    margin-left: 20px;
    text-decoration: none;
    color: rgba(255,255,255,0.65);
    font-size: 16px;
    transition: 0.25s ease;
}

.btn-link:hover {
    color: #fff;
}

/* ====== CARDS ====== */

.hero-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 22px;
    max-width: 520px;
    
}

.card-minimal {
    background: #1a1a1a;
    border-radius: 22px;
    padding: 24px;
    border: 1px solid rgba(255,255,255,0.06);
    transition: 0.35s ease;
}

.card-minimal h3 {
    color: #fff;
    margin-bottom: 10px;
    font-size: 18px;
    font-weight: 600;
}

.card-minimal p {
    color: rgba(255,255,255,0.60);
    font-size: 15px;
    line-height: 1.4;
}

.card-minimal:hover {
    background: #08885d;
    transform: translateY(-4px);
}

/* ====== MOBILE ====== */

@media(max-width: 960px) {
    .hero-container {
        flex-direction: column;
        text-align: left;
    }

    .hero-cards {
        grid-template-columns: 1fr;
        max-width: 100%;
    }

    .hero-text h1 {
        font-size: 38px;
    }
}

@media(max-width: 600px) {
    .hero {
        padding-top: 140px;
    }

    .hero-text h1 {
        font-size: 30px;
    }

    .hero-buttons {
        display: flex;
        flex-direction: column;
        gap: 14px;
    }

    .btn-link {
        margin-left: 0;
    }
}




/* ===========================
   CARDS TÉCNICAS DETALLADAS
=========================== */

.cards-tecnicas {
    max-width: 1500px;
    margin: 100px auto;
    padding: 0 40px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    font-family: "Raleway", sans-serif;
}

/* CARD RECTANGULAR PREMIUM */
.card-tech {
    background: #121212;
    padding: 32px 36px;
    border-radius: 20px;
    border: 1px solid rgba(255,255,255,0.05);
    box-shadow: 0 8px 22px rgba(0,0,0,0.35);
    transition: 0.30s ease;
}

.card-tech:hover {
    background: #00fff231;
    transform: translateY(-6px);
}

.card-tech h2 {
    color: #fff;
    margin-bottom: 10px;
    font-size: 24px;
    font-weight: 600;
}

.card-tech .sub {
    color: rgba(255,255,255,0.55);
    margin-bottom: 18px;
    font-size: 16px;
}

.card-tech p {
    color: rgba(255,255,255,0.70);
    line-height: 1.55;
    font-size: 15px;
}

/* MOBILE */
@media(max-width: 900px) {
    .cards-tecnicas {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .card-tech {
        padding: 26px;
    }
}



/* =======================================================
   🎬 FUNCIÓN GLOBAL DE GRADIENTE ANIMADO
======================================================= */

.gradient-section {
    position: relative;
    overflow: hidden;
    z-index: 0; /* la sección es la base */
}

/* TODO el contenido va arriba del gradiente */
.gradient-section > * {
    position: relative;
    z-index: 2;
}

.gradient-section::before {
    content: "";
    position: absolute;
    top: var(--grad-y);
    left: var(--grad-x);

    width: var(--grad-size);
    height: var(--grad-size);

    background: radial-gradient(circle,
        var(--g1),
        var(--g2) 40%,
        var(--g3) 80%,
        transparent 100%
    );

    opacity: var(--grad-opacity);
    filter: blur(120px);
    transform: translate(-50%, -50%);
    animation: moveGradient var(--grad-speed) ease-in-out infinite alternate;

    pointer-events: none;

    z-index: 1; /* debajo del contenido, encima del fondo */
}

/* Animación suave */
@keyframes moveGradient {
    0% { transform: translate(-50%, -50%) scale(1); }
    100% { transform: translate(-45%, -55%) scale(1.22); }
}

/* =======================================================
   🎨 SISTEMA GLOBAL DE GRADIENTES
======================================================= */
.hero {
    --g1: #00f5cc;
    --g2: #00ffdd;
    --g3: #00ffaa;
    --grad-size: 500px;
    --grad-opacity: 0.55;
    --grad-speed: 2s;
    --grad-x: 4%;
    --grad-y: 55%;
}

.cards-tecnicas {
    --g1: #009dff;
    --g2: #00ffb3;
    --g3: #00d9ff;
    --grad-size: 400px;
    --grad-opacity: 0.45;
    --grad-speed: 2s;
    --grad-x: 55%;
    --grad-y: 60%;
}