/* ============================================================
   layout.css — Header / Nav / Hero / Grid / Footer — v2
   ============================================================ */


/* ── 1. HEADER ──────────────────────────────────────────────── */

.site-header {
    position: sticky;
    top: 0;
    z-index: 9000;
    height: var(--header-height);
    background: rgba(7, 13, 26, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    transition: box-shadow var(--transition), background var(--transition);
}

.site-header.scrolled {
    background: rgba(7, 13, 26, 0.97);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5),
                0 1px 0 rgba(0, 212, 255, 0.1);
}

.header-inner {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-sm);
}

/* Logo */
.logo img {
    height: 48px;
    width: auto;
    filter: brightness(0) invert(1);
    opacity: 0.92;
    transition: opacity var(--transition), filter var(--transition);
}

.logo:hover img {
    opacity: 1;
    filter: brightness(0) invert(1) drop-shadow(0 0 8px rgba(0,212,255,0.6));
}


/* ── 2. NAVEGACIÓN ──────────────────────────────────────────── */

.site-nav { position: relative; }

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-links[hidden] { display: none; }

.nav-links a {
    font-weight: 500;
    font-size: var(--fs-sm);
    color: var(--color-text-muted);
    padding: 0.2rem 0;
    position: relative;
    transition: color var(--transition);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-primary);
    box-shadow: var(--glow-cyan);
    border-radius: var(--radius-round);
    transition: width var(--transition);
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
    color: var(--color-primary);
}

.nav-links a:hover::after,
.nav-links a[aria-current="page"]::after {
    width: 100%;
}

/* CTA del nav */
.nav-links .btn-accent {
    padding: 0.5rem 1.2rem;
    border-radius: var(--radius-round);
    font-weight: 600;
    font-size: var(--fs-xs);
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary-light));
    color: var(--color-bg);
    box-shadow: var(--shadow-cyan);
    transition: opacity var(--transition), transform var(--transition), box-shadow var(--transition);
}

.nav-links .btn-accent:hover {
    opacity: 0.9;
    transform: translateY(-2px);
    box-shadow: var(--glow-cyan);
    color: var(--color-bg);
}

.nav-links .btn-accent::after { display: none; }

/* Hamburguesa */
.nav-toggle {
    display: none;
    font-size: 1.4rem;
    color: var(--color-text);
    padding: 0.4rem;
    border-radius: var(--radius-sm);
    transition: color var(--transition), background var(--transition);
}

.nav-toggle:hover {
    color: var(--color-primary);
    background: rgba(0, 212, 255, 0.08);
}

/* Mobile nav */
@media (max-width: 768px) {
    .nav-toggle { display: flex; align-items: center; justify-content: center; }

    .nav-links {
        position: absolute;
        top: calc(100% + 0.75rem);
        right: 0;
        background: var(--color-surface);
        flex-direction: column;
        align-items: stretch;
        padding: var(--space-sm);
        gap: 0.25rem;
        width: 260px;
        border-radius: var(--radius-lg);
        border: 1px solid var(--color-border);
        box-shadow: var(--shadow-lg), var(--shadow-cyan);
        display: none;
    }

    .nav-links[hidden] { display: none; }
    .nav-links.show    { display: flex !important; }

    .nav-links a {
        padding: 0.7rem 0.75rem;
        border-radius: var(--radius-sm);
        color: var(--color-text-muted);
    }

    .nav-links a:hover {
        background: rgba(0, 212, 255, 0.06);
        color: var(--color-primary);
    }

    .nav-links a::after { display: none; }
    .nav-links .btn-accent { text-align: center; justify-content: center; margin-top: 0.25rem; }
}

@media (min-width: 769px) {
    .nav-links, .nav-links[hidden] { display: flex !important; }
    .nav-toggle { display: none !important; }
    .nav-links {
        position: static; background: none; flex-direction: row;
        padding: 0; gap: 2rem; width: auto; border: none; box-shadow: none;
    }
}


/* ── 3. HERO ────────────────────────────────────────────────── */

.hero-full, .hero-small {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    overflow: hidden;
    color: var(--color-white);
    text-align: center;
}

.hero-full {
    min-height: 100vh;
    min-height: 100dvh;
}

.hero-small {
    min-height: 380px;
    padding-block: var(--space-xl);
}

@media (max-width: 768px) {
    .hero-small { min-height: 280px; padding-block: var(--space-lg); }
}

/* Overlay oscuro multicapa para el hero */
.hero-full .overlay,
.hero-small .overlay {
    position: absolute;
    inset: 0;
    z-index: 1;
    background:
        linear-gradient(180deg, rgba(7,13,26,0.30) 0%, rgba(7,13,26,0.75) 100%),
        linear-gradient(135deg, rgba(0,212,255,0.08) 0%, rgba(124,58,237,0.08) 100%);
    pointer-events: none;
}

.hero-full .hero-content,
.hero-small .hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    padding: var(--space-md);
    width: 100%;
}

/* Títulos hero */
.hero-title {
    font-size: var(--fs-hero);
    font-weight: 800;
    line-height: 1.0;
    letter-spacing: -0.03em;
    color: var(--color-white);
    margin-bottom: 0.4rem;
    text-shadow: 0 0 40px rgba(0,212,255,0.3);
}

/* Palabra destacada en el hero con gradiente */
.hero-title .highlight {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.3rem);
    color: rgba(255,255,255,0.75);
    font-style: italic;
    margin-bottom: var(--space-sm);
    letter-spacing: 0.02em;
}

/* Especialidad — badge destacado */
.hero-specialty {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(0,212,255,0.10);
    border: 1px solid rgba(0,212,255,0.30);
    border-radius: var(--radius-round);
    padding: 0.4rem 1.2rem;
    font-size: var(--fs-xs);
    font-weight: 700;
    letter-spacing: 0.10em;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: var(--space-md);
}

.hero-specialty i { font-size: 0.8rem; }

/* Descripción */
.lead {
    font-size: var(--fs-base);
    color: rgba(255,255,255,0.75);
    max-width: 620px;
    margin: 0 auto var(--space-lg);
    line-height: 1.75;
}

/* Estadísticas bajo el CTA */
.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--space-lg);
    margin-top: var(--space-xl);
    padding-top: var(--space-lg);
    border-top: 1px solid rgba(255,255,255,0.08);
    position: relative;
    z-index: 2;
    width: 100%;
}

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

.hero-stat-number {
    font-family: var(--font-heading);
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
    line-height: 1;
    margin-bottom: 0.25rem;
}

.hero-stat-label {
    font-size: var(--fs-xs);
    color: rgba(255,255,255,0.5);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

/* CTA del hero */
.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    justify-content: center;
}

@media (max-width: 480px) {
    .hero-cta { flex-direction: column; align-items: stretch; }
    .hero-cta .btn { width: 100%; justify-content: center; }
    .hero-stats { gap: var(--space-md); flex-wrap: wrap; }
    .hero-title { font-size: 2.4rem; }
}

/* Hero páginas internas */
.hero-small h1 {
    font-size: clamp(1.8rem, 4vw, 3rem);
    color: var(--color-white);
    margin-bottom: 0.5rem;
}

.hero-small h1 span { color: var(--color-primary); }
.hero-small .lead   { margin-bottom: 0; font-size: var(--fs-sm); }


/* ── 4. GRIDS ───────────────────────────────────────────────── */

.grid { display: grid; gap: var(--space-md); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 960px) {
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}


/* ── 5. FOOTER OSCURO ───────────────────────────────────────── */

.site-footer {
    background: #040912;
    color: var(--color-text-muted);
    padding-top: var(--space-xl);
    position: relative;
    overflow: hidden;
}

/* Línea degradada superior */
.site-footer::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(
        90deg,
        transparent 0%,
        var(--color-primary) 25%,
        var(--color-secondary-light) 50%,
        var(--color-accent) 75%,
        transparent 100%
    );
}

/* Luz ambiental de fondo */
.site-footer::after {
    content: '';
    position: absolute;
    width: 600px; height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0,212,255,0.04) 0%, transparent 70%);
    bottom: -200px; right: -100px;
    pointer-events: none;
}

.footer-inner {
    display: grid;
    grid-template-columns: 1.8fr 1fr 1fr;
    gap: var(--space-xl);
    align-items: start;
    padding-bottom: var(--space-xl);
    position: relative; z-index: 1;
}

/* Columna de marca */
.footer-brand { display: flex; flex-direction: column; gap: var(--space-sm); }

.footer-brand .logo img {
    height: 44px; width: auto;
    filter: brightness(0) invert(1);
    opacity: 0.8;
}

.footer-brand p {
    font-size: var(--fs-sm);
    color: var(--color-text-dim);
    line-height: 1.75;
    max-width: 300px;
    margin: 0;
}

/* Contacto en footer */
.footer-contact { display: grid; gap: 0.55rem; margin-top: var(--space-xs); }

.footer-contact-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: var(--fs-sm);
    color: var(--color-text-dim);
}

.footer-contact-item i {
    color: var(--color-primary);
    width: 16px; text-align: center;
    font-size: 0.85rem; flex-shrink: 0;
}

.footer-contact-item a {
    color: var(--color-text-dim);
    transition: color var(--transition);
}

.footer-contact-item a:hover { color: var(--color-primary); }

/* Encabezados columnas */
.site-footer h4 {
    font-family: var(--font-body);
    font-size: var(--fs-xs);
    font-weight: 700;
    color: var(--color-white);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: var(--space-sm);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.site-footer h4::after {
    content: '';
    flex: 1;
    height: 1px;
    background: rgba(255,255,255,0.06);
}

/* Links del footer */
.site-footer a {
    color: var(--color-text-dim);
    transition: color var(--transition), transform var(--transition);
    display: inline-block;
}

.site-footer a:hover { color: var(--color-primary); }

.footer-links { display: grid; gap: 0.5rem; }

.footer-links a {
    font-size: var(--fs-sm);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.footer-links a::before {
    content: '›';
    color: var(--color-primary);
    font-size: 1.1rem;
    line-height: 1;
    transition: transform var(--transition);
    opacity: 0.6;
}

.footer-links a:hover { transform: translateX(4px); }
.footer-links a:hover::before { opacity: 1; transform: translateX(2px); }

/* Redes sociales */
.footer-social { display: flex; gap: 0.6rem; margin-top: var(--space-sm); flex-wrap: wrap; }

.footer-social a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px; height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    color: var(--color-text-dim);
    font-size: 0.9rem;
    transition: all var(--transition);
}

.footer-social a:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-bg);
    transform: translateY(-4px);
    box-shadow: var(--glow-cyan);
}

/* Mapa */
.footer-map {
    margin-top: var(--space-sm);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid rgba(0,212,255,0.10);
}

.footer-map iframe {
    display: block; width: 100%; border: 0;
    filter: grayscale(80%) invert(90%) hue-rotate(180deg);
    opacity: 0.7;
    transition: all var(--transition-slow);
}

.footer-map:hover iframe { filter: none; opacity: 1; }

/* Barra inferior */
.footer-divider {
    border: none;
    border-top: 1px solid rgba(255,255,255,0.05);
    margin: 0;
    position: relative; z-index: 1;
}

.footer-bottom {
    padding: var(--space-md) 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem var(--space-md);
    position: relative; z-index: 1;
}

.footer-bottom p {
    margin: 0;
    color: var(--color-text-dim);
    font-size: var(--fs-xs);
}

.footer-bottom a {
    color: var(--color-text-dim);
    font-size: var(--fs-xs);
    display: inline;
    transition: color var(--transition);
}

.footer-bottom a:hover { color: var(--color-primary); transform: none; }

.footer-bottom-links { display: flex; gap: var(--space-sm); align-items: center; }

.footer-bottom-links a:not(:last-child)::after {
    content: '·';
    margin-left: calc(var(--space-sm) / 2);
    color: rgba(255,255,255,0.15);
}

@media (max-width: 900px) {
    .footer-inner { grid-template-columns: 1fr 1fr; gap: var(--space-lg); }
    .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 600px) {
    .footer-inner { grid-template-columns: 1fr; }
    .footer-brand { grid-column: auto; }
    .footer-bottom { flex-direction: column; text-align: center; gap: 0.4rem; }
    .footer-bottom-links { justify-content: center; }
}


/* ── 6. WHATSAPP FLOAT ──────────────────────────────────────── */

.whatsapp-float {
    position: fixed;
    bottom: 1.5rem; right: 1.5rem;
    z-index: 8000;
    width: 58px; height: 58px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(37,211,102,0.45);
    transition: transform var(--transition), box-shadow var(--transition);
}

.whatsapp-float img { width: 30px; height: 30px; filter: invert(1); }

.whatsapp-float:hover {
    transform: scale(1.12) translateY(-2px);
    box-shadow: 0 8px 30px rgba(37,211,102,0.6);
}


/* ── PULIDO FASE 4 — LAYOUT ─────────────────────────────────── */

/* Header entra deslizando desde arriba al cargar */
@keyframes headerSlideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.site-header {
    animation: headerSlideDown 0.5s ease forwards;
}

/* Indicador de scroll en el hero */
.hero-scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
    opacity: 0.5;
    transition: opacity var(--transition);
    cursor: pointer;
    animation: bounceDown 2s ease-in-out infinite;
}

.hero-scroll-indicator:hover { opacity: 1; }

.hero-scroll-indicator span {
    font-size: var(--fs-xs);
    color: rgba(255,255,255,0.7);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.hero-scroll-indicator i {
    color: var(--color-primary);
    font-size: 1.2rem;
}

@keyframes bounceDown {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50%       { transform: translateX(-50%) translateY(6px); }
}

@media (max-width: 600px) {
    .hero-scroll-indicator { display: none; }
}

/* WhatsApp float — entra con delay para no distraer el LCP */
.whatsapp-float {
    animation: whaEnter 0.5s ease 2s both;
}

@keyframes whaEnter {
    from { opacity: 0; transform: scale(0.5) translateY(20px); }
    to   { opacity: 1; transform: scale(1) translateY(0); }
}

/* Footer links con stagger en hover */
.footer-links li:nth-child(1) a { transition-delay: 0ms; }
.footer-links li:nth-child(2) a { transition-delay: 20ms; }
.footer-links li:nth-child(3) a { transition-delay: 40ms; }
.footer-links li:nth-child(4) a { transition-delay: 60ms; }
.footer-links li:nth-child(5) a { transition-delay: 80ms; }
.footer-links li:nth-child(6) a { transition-delay: 100ms; }