/* ==========================================================================
   VivoSonido — Design tokens (edición prestige)
   Paleta: negro absoluto + champán/dorado + blanco cálido
   Tipografía: Cormorant Garamond (display, editorial) / Inter (cuerpo) / JetBrains Mono (utilidad)
   ========================================================================== */

:root{
  --bg: #060605;
  --surface: #0D0D0B;
  --surface-2: #141412;
  --border: #232320;
  --border-soft: rgba(255,255,255,0.07);

  --text: #F2EFE6;
  --text-dim: #A8A296;
  --text-faint: #625D53;

  --gold: #C9A24B;
  --gold-bright: #E8C878;
  --gold-dim: #8A6F35;

  --font-display: 'Cormorant Garamond', serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --container: 1180px;
  --radius: 2px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

*{ margin:0; padding:0; box-sizing:border-box; }
html{ scroll-behavior:smooth; }

body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *{ animation:none !important; transition:none !important; }
}

a{ color:inherit; text-decoration:none; }
ul, ol{ list-style:none; }
button{ font:inherit; background:none; border:none; color:inherit; cursor:pointer; }
img{ max-width:100%; display:block; }
svg{ display:block; flex-shrink:0; }

.container{ max-width:var(--container); margin:0 auto; padding:0 32px; }
.mono{ font-family:var(--font-mono); }

.label{
  display:inline-flex; align-items:center; gap:10px;
  font-family:var(--font-mono); font-size:0.7rem; letter-spacing:0.22em; text-transform:uppercase;
  color:var(--gold); margin-bottom:20px;
}
.label::before{ content:''; width:24px; height:1px; background:var(--gold-dim); }

/* Progress bar — línea fina dorada */
.progress-bar{
  position:fixed; top:0; left:0; height:1px; width:0%;
  background:var(--gold); z-index:200; transition:width 0.1s linear;
}

/* Sin haces de luz de neón: textura sutil de grano únicamente */
.beam{ display:none; }
.noise{
  position:fixed; inset:0; z-index:1; pointer-events:none; opacity:0.025;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
main, header, footer{ position:relative; z-index:2; }

/* ==========================================================================
   Arte generado — ilustraciones vectoriales de línea (sustituyen a fotos)
   ========================================================================== */
.art-frame{
  position:relative; overflow:hidden; background:var(--surface-2);
  will-change:transform;
}
.art-svg{ width:100%; height:100%; display:block; }
.art-photo{
  width:100%; height:100%; object-fit:cover; display:block;
  filter:grayscale(25%) contrast(1.12) brightness(0.72) saturate(1.05);
  transition:transform 0.6s var(--ease), filter 0.6s var(--ease);
}
.art-frame:hover .art-photo{ transform:scale(1.04); filter:grayscale(10%) contrast(1.12) brightness(0.8) saturate(1.1); }
.art-frame::before{
  content:''; position:absolute; inset:0; pointer-events:none; z-index:1;
  background:linear-gradient(160deg, rgba(201,162,75,0.28) 0%, rgba(6,6,5,0.15) 45%, rgba(6,6,5,0.55) 100%);
  mix-blend-mode:multiply;
}
.art-frame::after{
  content:''; position:absolute; inset:0; pointer-events:none; z-index:1;
  background:linear-gradient(180deg, rgba(6,6,5,0) 45%, rgba(6,6,5,0.55) 100%);
}
.art-frame.tilt{ transition:transform 0.4s var(--ease); transform-style:preserve-3d; perspective:800px; }
@media (hover:hover){
  .art-frame.tilt:hover{ transform:scale(1.015); }
}

/* ==========================================================================
   Hero — canvas de haces de luz + emblema 3D que gira con el scroll
   ========================================================================== */
.hero-photo{ position:absolute; inset:0; z-index:0; width:100%; height:100%; overflow:hidden; }
.hero-photo img{
  width:100%; height:100%; object-fit:cover; display:block;
  filter:grayscale(35%) contrast(1.15) brightness(0.42) saturate(1.05);
}
.hero-photo::after{
  content:''; position:absolute; inset:0;
  background:radial-gradient(ellipse at 50% 30%, rgba(201,162,75,0.16) 0%, rgba(6,6,5,0.35) 55%, rgba(6,6,5,0.85) 100%);
}
.hero-canvas{ position:absolute; inset:0; z-index:0; width:100%; height:100%; display:block; }

.hero-3d-stage{
  position:absolute; top:120px; left:50%; transform:translateX(-50%);
  width:220px; height:220px; z-index:1; perspective:900px; pointer-events:none;
  opacity:0.9;
}
.hero-3d{
  position:relative; width:100%; height:100%; transform-style:preserve-3d;
  transform:rotateX(-18deg) rotateY(0deg);
  transition:transform 0.05s linear;
}
.hero-3d .facet{
  position:absolute; width:220px; height:220px; left:0; top:0;
  border:1px solid rgba(201,162,75,0.55);
  background:linear-gradient(135deg, rgba(201,162,75,0.08), rgba(232,200,120,0.02));
  backface-visibility:visible;
}
.hero-3d .f1{ transform:rotateY(0deg) translateZ(110px); }
.hero-3d .f2{ transform:rotateY(60deg) translateZ(110px); }
.hero-3d .f3{ transform:rotateY(120deg) translateZ(110px); }
.hero-3d .f4{ transform:rotateY(180deg) translateZ(110px); }
.hero-3d .f5{ transform:rotateY(240deg) translateZ(110px); }
.hero-3d .f6{ transform:rotateY(300deg) translateZ(110px); }

.hero-3d .ring{
  position:absolute; left:50%; top:50%; border:1px solid rgba(201,162,75,0.3);
  border-radius:50%; transform-style:preserve-3d;
}
.hero-3d .r1{ width:280px; height:280px; margin:-140px 0 0 -140px; transform:rotateX(75deg); }
.hero-3d .r2{ width:320px; height:320px; margin:-160px 0 0 -160px; transform:rotateX(75deg) rotateZ(35deg); border-color:rgba(232,200,120,0.18); }

.hero-3d .core{
  position:absolute; left:50%; top:50%; width:14px; height:14px; margin:-7px 0 0 -7px;
  border-radius:50%; background:radial-gradient(circle, var(--gold-bright), var(--gold-dim));
  box-shadow:0 0 30px 6px rgba(232,200,120,0.5); transform:translateZ(0);
}

@media (max-width: 860px){
  .hero-3d-stage{ display:none; }
}
@media (prefers-reduced-motion: reduce){
  .hero-3d{ transform:rotateX(-18deg) rotateY(20deg) !important; }
}

/* ==========================================================================
   Header
   ========================================================================== */
.site-header{
  position:sticky; top:0; z-index:100;
  background:rgba(6,6,5,0.82); backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border); transition:border-color 0.3s ease;
}
.header-inner{ display:flex; align-items:center; justify-content:space-between; height:88px; gap:24px; }
.logo{ font-family:var(--font-display); font-weight:600; font-size:1.5rem; letter-spacing:0.06em; }
.logo.small{ font-size:1.2rem; }
.logo .ink{ color:var(--gold); }
.main-nav{ display:flex; gap:40px; }
.main-nav a{
  font-size:0.78rem; letter-spacing:0.1em; text-transform:uppercase;
  color:var(--text-dim); transition:color 0.2s ease; position:relative; padding:4px 0;
}
.main-nav a::after{ content:''; position:absolute; left:0; bottom:0; width:0; height:1px; background:var(--gold); transition:width 0.3s var(--ease); }
.main-nav a:hover{ color:var(--text); }
.main-nav a:hover::after, .main-nav a.active::after{ width:100%; }
.main-nav a.active{ color:var(--gold-bright); }
a:focus-visible, button:focus-visible{ outline:1px solid var(--gold); outline-offset:3px; }

.nav-toggle{ display:none; flex-direction:column; gap:5px; padding:8px; margin-left:auto; }
.nav-toggle span{ width:22px; height:1px; background:var(--text); transition:transform 0.25s ease, opacity 0.25s ease; }
.nav-toggle.open span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2){ opacity:0; }
.nav-toggle.open span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

/* Buttons */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  padding:15px 32px; font-size:0.78rem; font-weight:600; letter-spacing:0.12em; text-transform:uppercase;
  border-radius:var(--radius); border:1px solid transparent;
  transition:transform 0.25s var(--ease), background 0.25s ease, border-color 0.25s ease, color 0.25s ease;
  white-space:nowrap;
}
.btn-lg{ padding:18px 38px; }
.btn-primary{ background:var(--gold); color:#0A0A08; }
.btn-primary:hover{ background:var(--gold-bright); transform:translateY(-2px); }
.btn-outline{ border-color:var(--border); color:var(--text); }
.btn-outline:hover{ border-color:var(--gold); color:var(--gold-bright); }
.btn:active{ transform:scale(0.97); }

.hero-actions{ display:flex; gap:20px; flex-wrap:wrap; margin-top:44px; }
.hero-actions.center{ justify-content:center; margin-top:44px; }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero{ position:relative; padding:180px 0 0; overflow:hidden; background:var(--bg); }
.hero-overlay{
  position:absolute; inset:0; z-index:1;
  background:linear-gradient(180deg, rgba(6,6,5,0.15) 0%, rgba(6,6,5,0.85) 78%, var(--bg) 100%);
}
.hero-inner{ position:relative; z-index:2; max-width:760px; margin:0 auto; padding:0 32px; text-align:center; }
.eyebrow{
  display:inline-flex; align-items:center; gap:10px; font-size:0.72rem; letter-spacing:0.16em; text-transform:uppercase;
  color:var(--gold-bright); margin-bottom:32px; border:1px solid var(--border); padding:10px 20px;
}
.dot{ width:5px; height:5px; border-radius:50%; background:var(--gold); }
.hero-title{
  font-family:var(--font-display); font-weight:600; font-style:italic;
  font-size:clamp(2.8rem, 6.6vw, 5.2rem); line-height:1.08; letter-spacing:0.005em;
  margin-bottom:32px;
}
.hero-title .ink{ color:var(--gold); }
.hero-lead{ font-size:1.1rem; color:var(--text-dim); max-width:520px; margin:0 auto; font-weight:300; }
.hero-actions{ justify-content:center; }

/* Marquee de marcas */
.marquee{ position:relative; z-index:2; overflow:hidden; padding:30px 0; margin-top:96px; background:var(--surface); border-top:1px solid var(--border); border-bottom:1px solid var(--border); }
.marquee-label{ text-align:center; color:var(--text-faint); font-size:0.68rem; letter-spacing:0.18em; text-transform:uppercase; margin-bottom:20px; }
.marquee-track{ display:flex; gap:80px; white-space:nowrap; width:max-content; animation:scroll-marquee 26s linear infinite; }
.marquee-track span{ font-family:var(--font-display); font-weight:500; font-size:1.15rem; letter-spacing:0.14em; text-transform:uppercase; color:var(--text-dim); }
@keyframes scroll-marquee{ from{ transform:translateX(0); } to{ transform:translateX(-50%); } }

/* ==========================================================================
   Sections shared
   ========================================================================== */
.section{ padding:140px 0; border-top:1px solid var(--border); }
.section.alt{ background:var(--surface); }
.section-index{ color:var(--gold-dim); font-size:0.72rem; letter-spacing:0.14em; text-transform:uppercase; margin-bottom:20px; }
.section-title{
  font-family:var(--font-display); font-weight:500;
  font-size:clamp(2rem, 3.6vw, 2.9rem); letter-spacing:0.005em; margin-bottom:28px; max-width:680px;
}
.section-sub-wide{ color:var(--text-dim); max-width:540px; margin-bottom:64px; font-size:1rem; font-weight:300; }

.reveal{ opacity:0; transform:translateY(24px); transition:opacity 0.9s var(--ease), transform 0.9s var(--ease); }
.reveal.is-visible{ opacity:1; transform:none; }

/* Quiénes somos */
.about-grid{ display:grid; grid-template-columns:0.85fr 1.15fr; gap:80px; align-items:start; }
.about-copy p{ color:var(--text-dim); margin-bottom:22px; font-size:1.05rem; font-weight:300; }
.about-copy blockquote{
  font-family:var(--font-display); font-weight:500; font-style:italic;
  font-size:1.6rem; color:var(--gold-bright); border-left:1px solid var(--gold);
  padding-left:28px; margin-top:36px; line-height:1.4;
}

/* Diferenciadores */
.diff-grid{ display:grid; grid-template-columns:repeat(2, 1fr); gap:1px; background:var(--border); border:1px solid var(--border); }
.diff-card{ background:var(--bg); padding:44px 40px; transition:background 0.3s ease; }
.diff-card:hover{ background:var(--surface); }
.diff-card span{ color:var(--gold); font-family:var(--font-display); font-size:1.3rem; display:block; margin-bottom:20px; }
.diff-card h3{ font-family:var(--font-display); font-weight:500; font-size:1.35rem; margin-bottom:12px; }
.diff-card p{ color:var(--text-dim); font-size:0.94rem; font-weight:300; }

/* Servicios */
.services-grid{ display:grid; grid-template-columns:repeat(3, 1fr); gap:1px; background:var(--border); border:1px solid var(--border); }
.service-card{
  background:var(--bg); padding:0; transition:background 0.3s ease;
}
.service-card:hover{ background:var(--surface); }
.service-img{ aspect-ratio:4/3; border:none; border-bottom:1px solid var(--border); }
.service-card > *:not(.service-img){ padding-left:32px; padding-right:32px; }
.service-tag{ color:var(--gold); font-size:0.72rem; letter-spacing:0.1em; text-transform:uppercase; display:block; margin-top:28px; margin-bottom:14px; }
.service-card h3{ font-family:var(--font-display); font-weight:500; font-size:1.45rem; margin-bottom:16px; }
.service-card p{ color:var(--text-dim); font-size:0.92rem; font-weight:300; margin-bottom:24px; }
.tag-list{ display:flex; flex-wrap:wrap; gap:10px; padding-bottom:32px; }
.tag-list li{ font-size:0.72rem; letter-spacing:0.04em; color:var(--text-dim); border:1px solid var(--border); padding:7px 14px; }

/* Equipamiento */
.brands-grid{ display:grid; grid-template-columns:repeat(3, 1fr); gap:1px; background:var(--border); border:1px solid var(--border); }
.brand-card{ background:var(--bg); padding:40px; transition:background 0.3s ease; }
.brand-card:hover{ background:var(--surface); }
.brand-card.accent{ background:var(--surface-2); }
.brand-card h3{ font-family:var(--font-display); font-weight:600; letter-spacing:0.06em; font-size:1.5rem; margin-bottom:10px; color:var(--gold-bright); }
.brand-card p{ color:var(--text-dim); font-size:0.86rem; font-weight:300; }

/* Proceso */
.process-list{ display:flex; flex-direction:column; margin-top:64px; }
.process-list li{ display:flex; gap:40px; align-items:flex-start; padding:36px 0; border-top:1px solid var(--border); transition:padding-left 0.35s ease; }
.process-list li:hover{ padding-left:14px; }
.process-list li:last-child{ border-bottom:1px solid var(--border); }
.process-num{ font-family:var(--font-display); font-size:1.5rem; color:var(--gold); min-width:52px; }
.process-list h3{ font-family:var(--font-display); font-weight:500; font-size:1.3rem; margin-bottom:8px; }
.process-list p{ color:var(--text-dim); max-width:480px; font-weight:300; }

/* Portfolio */
.portfolio-grid{ display:grid; grid-template-columns:repeat(3, 1fr); gap:1px; background:var(--border); border:1px solid var(--border); }
.portfolio-card{ background:var(--bg); transition:background 0.3s ease; }
.portfolio-card:hover{ background:var(--surface); }
.portfolio-img{ aspect-ratio:4/3; border:none; border-bottom:1px solid var(--border); }
.portfolio-card > *:not(.portfolio-img){ padding-left:28px; padding-right:28px; }
.portfolio-tag{ color:var(--gold); font-size:0.72rem; letter-spacing:0.1em; text-transform:uppercase; display:block; margin-top:26px; margin-bottom:10px; }
.portfolio-card h3{ font-family:var(--font-display); font-weight:500; font-size:1.3rem; padding-bottom:28px; }

/* Contacto */
.contact{ text-align:center; }
.contact-inner{ display:flex; flex-direction:column; align-items:center; }
.contact-title{
  font-family:var(--font-display); font-weight:600; font-style:italic;
  font-size:clamp(2.2rem, 5vw, 3.6rem); margin:8px 0 24px; max-width:700px;
}
.contact-lead{ color:var(--text-dim); max-width:480px; margin-bottom:0; font-weight:300; }

/* Footer */
.site-footer{ border-top:1px solid var(--border); padding:44px 0 48px; }
.footer-inner{ display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:16px; }
.footer-inner p{ color:var(--text-faint); font-size:0.8rem; }
.footer-social{ display:flex; gap:28px; }
.footer-social a{ color:var(--text-dim); font-size:0.72rem; letter-spacing:0.1em; text-transform:uppercase; transition:color 0.2s ease; }
.footer-social a:hover{ color:var(--gold); }

/* Botón flotante volver arriba */
.float-btn{
  position:fixed; right:28px; bottom:28px; z-index:90; width:50px; height:50px; border-radius:50%;
  display:flex; align-items:center; justify-content:center; background:var(--surface); color:var(--gold-bright);
  border:1px solid var(--border); box-shadow:0 12px 30px -10px rgba(0,0,0,0.6);
  opacity:0; pointer-events:none; transform:translateY(10px);
  transition:transform 0.25s var(--ease), opacity 0.25s ease, border-color 0.25s ease;
}
.float-btn.visible{ opacity:1; pointer-events:auto; transform:translateY(0); }
.float-btn:hover{ border-color:var(--gold); }

.mobile-sticky-cta{
  display:none; position:fixed; bottom:0; left:0; right:0; z-index:80;
  padding:16px; background:rgba(6,6,5,0.94); backdrop-filter:blur(10px); border-top:1px solid var(--border);
}
.mobile-sticky-cta .btn{ width:100%; }

/* Cursor discreto en tono dorado */
.cursor-dot{
  position:fixed; top:0; left:0; width:8px; height:8px; border-radius:50%;
  background:var(--gold-bright);
  pointer-events:none; z-index:300; opacity:0;
  transform:translate(-50%,-50%); transition:opacity 0.3s ease, width 0.2s ease, height 0.2s ease;
}
.cursor-dot.visible{ opacity:0.85; }
.cursor-dot.grow{ width:34px; height:34px; opacity:0.18; background:transparent; border:1px solid var(--gold-bright); }
@media (hover: none), (pointer: coarse){ .cursor-dot{ display:none; } }
body.custom-cursor-active, body.custom-cursor-active *{ cursor:none !important; }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 980px){
  .about-grid{ grid-template-columns:1fr; gap:40px; }
  .diff-grid{ grid-template-columns:1fr; }
  .services-grid, .portfolio-grid{ grid-template-columns:1fr; }
  .brands-grid{ grid-template-columns:1fr 1fr; }
}

@media (max-width: 860px){
  .main-nav, .header-cta{ display:none; }
  .nav-toggle{ display:flex; }
  .main-nav.open{
    display:flex; flex-direction:column; position:absolute; top:88px; left:0; right:0;
    background:var(--bg); border-bottom:1px solid var(--border); padding:28px 32px; gap:24px;
  }
  .brands-grid{ grid-template-columns:1fr; }
  .section{ padding:90px 0; }
  .mobile-sticky-cta{ display:block; }
  .float-btn{ right:16px; bottom:86px; }
}