/* =========================================================
   VIVANTIQ — Estilos globales
   ========================================================= */

@import url('tokens.css');

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

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

body {
  background: var(--vq-obsidian);
  color: var(--vq-porcelain);
  font-family: var(--vq-font-body);
  font-size: var(--vq-body);
  line-height: var(--vq-lh-normal);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

h1, h2, h3 {
  font-family: var(--vq-font-display);
  line-height: var(--vq-lh-tight);
  font-weight: 500;
  letter-spacing: 0;
}

h1 { font-size: var(--vq-h1); }
h2 { font-size: var(--vq-h2); }
h3 { font-size: var(--vq-h3); }

p { color: var(--vq-stone); }

.container {
  max-width: var(--vq-max-width);
  margin: 0 auto;
  padding: 0 var(--vq-space-md);
}

section { padding: var(--vq-space-xl) 0; }

.eyebrow {
  font-family: var(--vq-font-mono);
  font-size: var(--vq-caption);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--vq-brass);
  display: inline-block;
  margin-bottom: var(--vq-space-sm);
}

/* --- Botones --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.9rem 1.8rem;
  font-family: var(--vq-font-body);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  border-radius: var(--vq-radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--vq-transition);
  text-align: center;
}

.btn-primary {
  background: var(--vq-porcelain);
  color: var(--vq-obsidian);
}
.btn-primary:hover { background: var(--vq-brass); color: var(--vq-obsidian); }

.btn-secondary {
  background: transparent;
  color: var(--vq-porcelain);
  border-color: var(--vq-stone-dim);
}
.btn-secondary:hover { border-color: var(--vq-brass); color: var(--vq-brass); }

.btn-whatsapp {
  background: transparent;
  color: var(--vq-porcelain);
  border-color: var(--vq-brass);
}
.btn-whatsapp:hover { background: var(--vq-brass-soft); }

/* --- Header / Nav --- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1.4rem 0;
  transition: background var(--vq-transition), padding var(--vq-transition), border-color var(--vq-transition);
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  background: rgba(11, 12, 14, 0.85);
  backdrop-filter: blur(12px);
  padding: 1rem 0;
  border-color: var(--vq-line);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-family: var(--vq-font-display);
  font-size: 1.3rem;
  letter-spacing: 0.02em;
}
.logo small {
  display: block;
  font-family: var(--vq-font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.15em;
  color: var(--vq-stone);
  text-transform: uppercase;
  margin-top: 0.1rem;
}
.nav-desktop { display: none; }
.nav-desktop ul { display: flex; gap: 2.2rem; list-style: none; }
.nav-desktop a {
  display: inline-flex;
  font-size: 0.92rem;
  color: var(--vq-mist);
  position: relative;
  transition: color var(--vq-transition);
  white-space: nowrap;
}
.nav-desktop a:hover { color: var(--vq-porcelain); }
.nav-desktop a::after {
  content: "";
  position: absolute;
  bottom: -6px; left: 0;
  width: 0; height: 1px;
  background: var(--vq-brass);
  transition: width var(--vq-transition);
}
.nav-desktop a:hover::after { width: 100%; }
.nav-cta { display: none; }

.nav-toggle {
  background: none; border: none; color: var(--vq-porcelain);
  cursor: pointer; padding: 0.5rem;
}
.nav-toggle svg { width: 24px; height: 24px; }

.nav-mobile {
  position: fixed;
  inset: 0;
  background: var(--vq-obsidian);
  z-index: 99;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--vq-space-md);
  transform: translateY(-100%);
  transition: transform var(--vq-transition);
}
.nav-mobile.is-open { transform: translateY(0); }
.nav-mobile ul { list-style: none; display: flex; flex-direction: column; gap: 1.6rem; }
.nav-mobile a { font-family: var(--vq-font-display); font-size: 1.9rem; }
.nav-mobile .nav-close {
  position: absolute; top: 1.6rem; right: 1.4rem;
  background: none; border: none; color: var(--vq-porcelain); cursor: pointer;
}

@media (min-width: 960px) {
  .nav-desktop, .nav-cta { display: flex; }
  .nav-toggle { display: none; }
}

/* --- Hero --- */
.hero {
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  position: relative;
  padding: 6rem 0 0;
  background: linear-gradient(180deg, rgba(11,12,14,0.2) 0%, rgba(11,12,14,0.55) 60%, var(--vq-obsidian) 100%),
              var(--vq-graphite) center/cover no-repeat;
}
.hero-media {
  position: absolute; inset: 0;
  overflow: hidden;
}
.hero-media img, .hero-media video {
  width: 100%; height: 100%; object-fit: cover;
}
.hero-media::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(11,12,14,0.25) 0%, rgba(11,12,14,0.35) 45%, var(--vq-obsidian) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  padding-bottom: var(--vq-space-xl);
  max-width: 780px;
}
.hero-content h1 { margin-bottom: 0.6rem; }
.hero-sub {
  font-family: var(--vq-font-display);
  font-style: italic;
  font-size: 1.4rem;
  color: var(--vq-mist);
  margin-bottom: var(--vq-space-sm);
}
.hero-lede { font-size: 1.15rem; color: var(--vq-porcelain); opacity: 0.85; max-width: 520px; margin-bottom: var(--vq-space-sm); }
.hero-tags {
  font-family: var(--vq-font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: var(--vq-stone);
  margin-bottom: var(--vq-space-md);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; }

/* --- Signature line: traza de scroll --- */
.vq-trace {
  position: fixed;
  top: 0; left: 0;
  width: 2px; height: 100vh;
  z-index: 90;
  pointer-events: none;
}
.vq-trace-fill {
  width: 100%;
  background: var(--vq-brass);
  height: 0%;
  transition: height 80ms linear;
}

/* --- Secciones genéricas --- */
.section-header { max-width: 640px; margin-bottom: var(--vq-space-lg); }
.section-header.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-header p { font-size: 1.1rem; }

.grid-2 { display: grid; grid-template-columns: 1fr; gap: var(--vq-space-lg); align-items: center; }
.grid-3 { display: grid; grid-template-columns: 1fr; gap: var(--vq-space-md); }
.grid-4 { display: grid; grid-template-columns: 1fr; gap: var(--vq-space-md); }

@media (min-width: 720px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 960px) {
  .grid-2 { grid-template-columns: 1fr 1fr; }
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* --- Cards de solución --- */
.card {
  background: var(--vq-graphite);
  border: 1px solid var(--vq-line);
  padding: var(--vq-space-md);
  transition: border-color var(--vq-transition), transform var(--vq-transition);
}
.card:hover { border-color: var(--vq-brass-soft); transform: translateY(-4px); }
.card .eyebrow { margin-bottom: var(--vq-space-sm); }
.card h3 { margin-bottom: 0.6rem; }
.card p { font-size: 0.95rem; }

/* --- Filosofía / cita --- */
.philosophy {
  border-top: 1px solid var(--vq-line);
  border-bottom: 1px solid var(--vq-line);
}
.philosophy blockquote {
  font-family: var(--vq-font-display);
  font-size: clamp(1.5rem, 2.4vw + 1rem, 2.4rem);
  font-weight: 400;
  line-height: 1.3;
  max-width: 820px;
}
.philosophy blockquote strong { color: var(--vq-brass); font-style: italic; font-weight: 500; }

/* --- Experiencia narrativa --- */
.experience-flow { display: flex; flex-direction: column; gap: 0; }
.experience-step {
  display: flex;
  gap: var(--vq-space-md);
  padding: var(--vq-space-md) 0;
  border-bottom: 1px solid var(--vq-line);
}
.experience-step .step-index {
  font-family: var(--vq-font-mono);
  color: var(--vq-brass);
  font-size: 0.85rem;
  flex-shrink: 0;
  width: 3rem;
  padding-top: 0.2rem;
}
.experience-step p { color: var(--vq-porcelain); font-size: 1.05rem; opacity: 0.9; }

/* --- Comparativa nueva construcción / vivienda existente --- */
.compare-card {
  padding: var(--vq-space-md);
  border: 1px solid var(--vq-line);
}
.compare-card h3 { margin-bottom: 0.8rem; }
.compare-card ul { list-style: none; display: flex; flex-direction: column; gap: 0.6rem; }
.compare-card li { font-size: 0.95rem; color: var(--vq-stone); padding-left: 1.2rem; position: relative; }
.compare-card li::before {
  content: "—"; position: absolute; left: 0; color: var(--vq-brass);
}

/* --- Proceso (cómo trabajamos) --- */
.page-hero {
  padding-top: 9rem;
}

.page-lede {
  max-width: 620px;
  margin-top: 1rem;
  font-size: 1.1rem;
}

.process-hero {
  padding-bottom: var(--vq-space-lg);
}

.process-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--vq-space-lg);
  align-items: center;
}

.process-hero-media {
  aspect-ratio: 16/10;
  overflow: hidden;
  border: 1px solid var(--vq-line);
  background: var(--vq-graphite);
}

.process-hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.method-points {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: var(--vq-space-md);
}

.method-points span {
  border: 1px solid var(--vq-line);
  color: var(--vq-mist);
  font-family: var(--vq-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  padding: 0.55rem 0.72rem;
  text-transform: uppercase;
}

.process-principles .card {
  min-height: 100%;
}

.process-list { display: flex; flex-direction: column; }
.process-item {
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: var(--vq-space-md);
  padding: var(--vq-space-sm) 0;
  border-bottom: 1px solid var(--vq-line);
}
.process-item .num { font-family: var(--vq-font-mono); color: var(--vq-brass); font-size: 0.9rem; }
.process-item h3 { font-size: 1.15rem; margin-bottom: 0.3rem; }
.process-item p { font-size: 0.92rem; }

.process-item-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.process-video {
  max-width: 400px;
  margin: 0;
}

.process-video video {
  width: 100%;
  display: block;
  border: 1px solid var(--vq-line);
  background: var(--vq-obsidian);
}

.process-video figcaption {
  color: var(--vq-stone-dim);
  font-family: var(--vq-font-mono);
  font-size: 0.75rem;
  margin-top: 0.5rem;
}

@media (min-width: 960px) {
  .process-hero-grid {
    grid-template-columns: minmax(0, 0.95fr) minmax(420px, 1.05fr);
  }

  .process-hero-media {
    aspect-ratio: 4/3;
  }
}

@media (max-width: 719px) {
  .page-hero {
    padding-top: 7.5rem;
  }

  .process-hero {
    padding-bottom: var(--vq-space-md);
  }

  .method-points span {
    font-size: 0.68rem;
  }
}

/* --- Proyectos destacados --- */
.project-card { position: relative; overflow: hidden; aspect-ratio: 4/5; background: var(--vq-graphite); }
.project-card img { width: 100%; height: 100%; object-fit: cover; transition: transform 900ms ease; }
.project-card:hover img { transform: scale(1.04); }
.project-card .project-info {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: var(--vq-space-sm);
  background: linear-gradient(180deg, transparent, rgba(11,12,14,0.9) 70%);
}
.project-card .eyebrow { color: var(--vq-mist); }
.project-card h3 { font-size: 1.2rem; }

/* --- Videos / material comercial --- */
.video-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--vq-space-md);
}

.video-card {
  border: 1px solid var(--vq-line);
  background: var(--vq-graphite);
  overflow: hidden;
  transition: border-color var(--vq-transition), transform var(--vq-transition);
}

.video-card:hover {
  border-color: var(--vq-brass-soft);
  transform: translateY(-4px);
}

.video-frame {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--vq-obsidian);
}

.video-frame img,
.video-frame video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11,12,14,0.05), rgba(11,12,14,0.55));
  pointer-events: none;
}

.video-play-badge {
  position: absolute;
  left: 1rem;
  bottom: 1rem;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  border: 1px solid rgba(244, 241, 235, 0.5);
  background: rgba(11, 12, 14, 0.65);
  color: var(--vq-porcelain);
  font-family: var(--vq-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  padding: 0.55rem 0.7rem;
  text-transform: uppercase;
}

.video-play-badge::before {
  content: "";
  width: 0;
  height: 0;
  border-top: 0.32rem solid transparent;
  border-bottom: 0.32rem solid transparent;
  border-left: 0.48rem solid var(--vq-brass);
}

.video-card-body {
  padding: var(--vq-space-md);
}

.video-card-body h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

.video-card-body p {
  font-size: 0.92rem;
}

.media-note {
  border-left: 2px solid var(--vq-brass);
  color: var(--vq-mist);
  margin-top: var(--vq-space-md);
  padding-left: 1rem;
}

@media (min-width: 720px) {
  .video-grid { grid-template-columns: repeat(3, 1fr); }
}

/* --- Contacto --- */
.contact-block {
  background: var(--vq-graphite);
  border: 1px solid var(--vq-line);
  padding: var(--vq-space-lg);
}
.contact-links { display: flex; flex-direction: column; gap: 1rem; margin-top: var(--vq-space-md); }
.contact-links a { font-family: var(--vq-font-mono); font-size: 0.95rem; color: var(--vq-mist); }
.contact-links a:hover { color: var(--vq-brass); }

/* --- WhatsApp flotante --- */
.wa-float {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 95;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--vq-porcelain);
  color: var(--vq-obsidian);
  padding: 0.85rem 1.2rem;
  border-radius: 999px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.35);
  font-size: 0.9rem;
  font-weight: 500;
  transition: transform var(--vq-transition), background var(--vq-transition);
}
.wa-float:hover { transform: translateY(-2px); background: var(--vq-brass); }
.wa-float svg { width: 18px; height: 18px; }

/* --- Footer --- */
.site-footer {
  border-top: 1px solid var(--vq-line);
  padding: var(--vq-space-lg) 0 var(--vq-space-md);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--vq-space-lg);
  margin-bottom: var(--vq-space-lg);
}
.footer-brand .logo { margin-bottom: 0.6rem; }
.footer-brand p { font-size: 0.9rem; max-width: 320px; }
.footer-col h4 {
  font-family: var(--vq-font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--vq-stone);
  margin-bottom: 1rem;
}
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 0.6rem; }
.footer-col a { font-size: 0.92rem; color: var(--vq-mist); transition: color var(--vq-transition); }
.footer-col a:hover { color: var(--vq-brass); }
.footer-bottom {
  display: flex; flex-direction: column; gap: 0.8rem;
  padding-top: var(--vq-space-md);
  border-top: 1px solid var(--vq-line);
  font-size: 0.8rem;
  color: var(--vq-stone-dim);
}
@media (min-width: 720px) {
  .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
  .footer-bottom { flex-direction: row; justify-content: space-between; align-items: center; }
}

/* --- Scroll reveal --- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 900ms ease, transform 900ms ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* --- Placeholder de imagen (mientras no hay fotografía real) --- */
.img-placeholder {
  background: linear-gradient(135deg, var(--vq-graphite) 0%, var(--vq-graphite-2) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--vq-stone-dim);
  font-family: var(--vq-font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  text-align: center;
  min-height: 260px;
  border: 1px dashed var(--vq-line);
}

.img-card { background: var(--vq-graphite); border: 1px solid var(--vq-line); overflow: hidden; transition: border-color var(--vq-transition), transform var(--vq-transition); }
.img-card:hover { border-color: var(--vq-brass-soft); transform: translateY(-4px); }
.img-card .img-card-media { aspect-ratio: 4/3; overflow: hidden; }
.img-card .img-card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 900ms ease; }
.img-card .img-card-media video { width: 100%; height: 100%; object-fit: cover; }
.img-card:hover .img-card-media img { transform: scale(1.05); }
.img-card .img-card-body { padding: var(--vq-space-md); }
.img-card .eyebrow { margin-bottom: 0.6rem; }
.img-card h3 { margin-bottom: 0.5rem; font-size: 1.1rem; }
.img-card p { font-size: 0.92rem; }

/* Utilidad de accesibilidad focus visible */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 2px solid var(--vq-brass);
  outline-offset: 3px;
}