/* ==========================================================================
   ALTER STANDS — Arquitectura Efímera de Autor & Instalaciones Sensoriales
   Identidad: GALERÍA DE ARTE CONTEMPORÁNEO (Light) — Blanco puro, tinta negra,
   acentos cian/magenta usados como señalética (no como texto sobre blanco).
   Tipografía: Syncopate + JetBrains Mono + Inter
   Paleta Light: Blanco #FFFFFF, Lienzo #F4F4F6, Tinta #0A0A0E,
                 Cian de texto #0E7490 (contraste medido) / #00F0FF (decorativo),
                 Magenta señal #D6004E (texto AA) / #FF0055 (decorativo)
   Autocontenido: no depende de hub.css. Footer propio: .alter-footer
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;700&family=Syncopate:wght@700&family=Inter:wght@300;400;600;800&display=swap');

:root {
  --font-display: 'Syncopate', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --font-body: 'Inter', sans-serif;

  --bg-white: #ffffff;
  --bg-canvas: #f4f4f6;
  --bg-card: #ffffff;
  --bg-ink: #0a0a0e;

  --cyan-deco: #00f0ff;
  --cyan-signal: #0e7490;   /* Texto: contraste medido sobre blanco/lienzo */
  --magenta-deco: #ff0055;
  --magenta-signal: #d6004e; /* Texto: contraste medido sobre blanco/lienzo */

  --text-ink: #0a0a0e;
  --text-body: #3a3a44;
  --text-muted: #6c6c78;

  --border-ink: rgba(10, 10, 14, 0.14);

  --radius-raw: 2px;
  --radius-lg: 12px;

  /* Alias de compatibilidad para estilos inline heredados (mapeados a valores AA) */
  --laser-cyan: #0e7490;
  --neon-magenta: #d6004e;
  --text-code: #0e7490;
  --border-grid: rgba(10, 10, 14, 0.08);
  --text-white: #0a0a0e;

  --shadow-soft: 0 18px 40px -18px rgba(10, 10, 14, 0.25);
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

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

body {
  background-color: var(--bg-white);
  color: var(--text-body);
  font-family: var(--font-body);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  background-image:
    linear-gradient(rgba(10, 10, 14, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10, 10, 14, 0.028) 1px, transparent 1px);
  background-size: 44px 44px;
}

a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--magenta-signal);
  outline-offset: 3px;
}

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

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3 {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: -0.03em;
  color: var(--text-ink);
}

/* Header */
.alter-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-ink);
  padding: 18px 0;
}

.alter-nav { display: flex; justify-content: space-between; align-items: center; }

.alter-brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }

.alter-symbol {
  width: 32px;
  height: 32px;
  border: 1.5px solid var(--text-ink);
  display: grid;
  place-items: center;
  color: var(--text-ink);
  font-family: var(--font-mono);
  font-size: 14px;
}

.alter-name {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--text-ink);
}

.alter-links-list { display: flex; gap: 28px; list-style: none; }

.alter-links-list a {
  color: var(--text-body);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: var(--transition);
}

.alter-links-list a:hover { color: var(--magenta-signal); }

.btn-cyan-glitch {
  background: var(--text-ink);
  color: #fff;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 11px 20px;
  border-radius: var(--radius-raw);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.btn-cyan-glitch:hover {
  background: var(--magenta-signal);
  color: #fff;
  transform: translateY(-2px);
}

/* Hero Section */
.alter-hero-wrap { padding: 90px 0 80px; position: relative; }

.hero-grid-avant {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  gap: 50px;
  align-items: center;
}

.mono-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--magenta-signal);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.mono-tag::before { content: '●'; color: var(--cyan-signal); }

.alter-hero-wrap h1 {
  font-size: clamp(34px, 4.5vw, 56px);
  line-height: 1.08;
  margin-bottom: 24px;
}

.alter-hero-wrap h1 span {
  color: var(--magenta-signal);
}

.alter-hero-wrap p {
  font-size: 16px;
  color: var(--text-body);
  line-height: 1.7;
  max-width: 540px;
  margin-bottom: 36px;
}

/* Concept Lab Frame (gallery plinth) */
.concept-lab-frame {
  background: var(--bg-card);
  border: 1px solid var(--border-ink);
  border-radius: var(--radius-raw);
  padding: 26px;
  position: relative;
  box-shadow: var(--shadow-soft);
}

.concept-lab-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-grid);
  padding-bottom: 14px;
  margin-bottom: 20px;
}

.lab-status { font-family: var(--font-mono); font-size: 11px; color: var(--cyan-signal); }

.lab-preview-box { background: var(--bg-white); margin-bottom: 16px; }
.concept-title-big {
  font-family: var(--font-display);
  font-size: 20px;
  color: var(--text-ink);
  letter-spacing: 0.1em;
}

.concept-subtitle {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan-signal);
  margin-top: 6px;
}

/* Kinetic Manifesto Marquee */
.marquee-strip {
  background: var(--text-ink);
  color: #fff;
  padding: 12px 0;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  overflow: hidden;
  white-space: nowrap;
}

/* Spatial Briefing Engine Section */
.engine-section { padding: 90px 0; border-top: 1px solid var(--border-grid); background: var(--bg-canvas); }

.engine-card {
  background: var(--bg-card);
  border: 1px solid var(--border-ink);
  border-radius: var(--radius-raw);
  padding: 40px;
  max-width: 900px;
  margin: 0 auto;
  box-shadow: var(--shadow-soft);
}

.engine-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; margin-bottom: 20px; }

.engine-input, .engine-select {
  width: 100%;
  background: var(--bg-white);
  border: 1px solid var(--border-ink);
  border-radius: var(--radius-raw);
  padding: 12px 16px;
  color: var(--text-ink);
  font-family: var(--font-mono);
  font-size: 13px;
  transition: var(--transition);
}

.engine-input::placeholder { color: var(--text-muted); }

.engine-input:focus, .engine-select:focus {
  outline: 3px solid var(--magenta-signal);
  outline-offset: 3px;
  border-color: var(--cyan-signal);
  box-shadow: 0 0 0 3px rgba(8, 145, 166, 0.18);
}

.engine-slider-group { margin: 24px 0; }

.slider-label-meta {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.slider-range { width: 100%; accent-color: var(--magenta-signal); cursor: pointer; }

/* Experiments Catalog Grid (gallery pieces) */
.experiments-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(320px, 100%), 1fr));
  gap: 28px;
  margin: 50px 0;
}

.exp-card {
  background: var(--bg-card);
  border: 1px solid var(--border-ink);
  border-radius: var(--radius-raw);
  overflow: hidden;
  transition: var(--transition);
}

.exp-card:hover {
  border-color: var(--magenta-signal);
  transform: translateY(-4px);
  box-shadow: var(--shadow-soft);
}

.exp-screen { background: var(--bg-white); border-bottom: 1px solid var(--border-grid); }
.exp-body { padding: 24px; }
.exp-body span { color: var(--cyan-signal) !important; }
.exp-body h3 { font-size: 18px; margin-bottom: 8px; }
.exp-body p { font-size: 13px; color: var(--text-body); line-height: 1.6; }

/* ==========================================================================
   FOOTER PROPIO ALTER STANDS (crédito obligatorio Ponciano Studio, monolito negro)
   ========================================================================== */
.alter-footer {
  background: var(--bg-ink);
  color: #b8b8c4;
  padding: 56px 0 20px;
  margin-top: auto;
  font-family: var(--font-body);
  border-top: 3px solid var(--cyan-deco);
}

.alter-footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: minmax(0, 2fr) repeat(2, minmax(0, 1fr));
  gap: 40px;
}

.alter-footer h4 {
  color: #fff;
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.12em;
  margin-bottom: 16px;
}

.alter-footer-brand-name {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: #fff;
  margin-bottom: 10px;
}

.alter-footer p { font-size: 14px; line-height: 1.6; color: #8a8a98; }
.alter-footer ul { list-style: none; display: grid; gap: 10px; }
.alter-footer ul a { color: #8a8a98; text-decoration: none; font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.06em; transition: color 0.2s; }
.alter-footer ul a:hover { color: var(--cyan-deco); }
.alter-footer-contact { font-family: var(--font-mono); font-size: 13px; color: #8a8a98; margin-bottom: 14px; }

.alter-footer-social { display: flex; gap: 12px; }
.alter-footer-social a {
  width: 40px; height: 40px; border: 1px solid rgba(255,255,255,0.14);
  display: grid; place-items: center;
  background: transparent; color: #b8b8c4;
  text-decoration: none; transition: all 0.2s;
}
.alter-footer-social a:hover { border-color: var(--cyan-deco); color: var(--cyan-deco); transform: translateY(-2px); }

.alter-footer-bottom {
  max-width: 1100px;
  margin: 36px auto 0;
  padding: 18px 24px 0;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.alter-footer-bottom p { font-size: 12px; margin: 0; color: #8a8a98; font-family: var(--font-mono); }

.alter-credito {
  display: inline-flex; align-items: center; min-height: 44px; max-width: 100%;
  padding: 6px 0; text-decoration: none; color: #b8b8c4;
  font-family: var(--font-mono); font-size: 12px; overflow-wrap: anywhere;
}
.alter-credito strong { font-weight: 700; }
.alter-credito:hover { color: #ffffff; text-decoration: underline; text-underline-offset: 4px; }
.alter-footer a:focus-visible { outline-color: var(--cyan-deco); }

@media (max-width: 900px) {
  .hero-grid-avant { grid-template-columns: 1fr; }
  .alter-links-list { display: flex; width: 100%; }
  .engine-row { grid-template-columns: 1fr; }
  .alter-footer-inner { grid-template-columns: 1fr; gap: 28px; }
  .alter-footer-bottom { flex-direction: column; align-items: flex-start; }
}

/* Alter: adaptación del prototipo e ilustraciones identificadas. */
body { min-width: 0; overflow-wrap: anywhere; }
.container, .alter-nav > *, .hero-grid-avant > *, .engine-row > *,
.experiments-grid > *, .alter-footer-inner > *, .slider-label-meta > * { min-width: 0; }
.alter-nav, .alter-brand, .alter-links-list { flex-wrap: wrap; }
.alter-nav { gap: 14px 24px; }
.alter-brand { min-height: 44px; max-width: 100%; }
.alter-symbol { flex-shrink: 0; }
.alter-name { min-width: 0; }
.alter-links-list { gap: 8px 24px; max-width: 100%; }
.alter-links-list a, .alter-footer ul a { display: inline-flex; align-items: center; min-height: 44px; max-width: 100%; }
.btn-cyan-glitch { min-height: 44px; max-width: 100%; white-space: normal; overflow-wrap: anywhere; }
.btn-cyan-glitch:disabled, .btn-cyan-glitch:disabled:hover { cursor: default; background: var(--text-ink); color: #fff; transform: none; }
.alter-hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.alter-hero-actions > a { min-height: 44px; max-width: 100%; }
.concept-lab-header, .alter-experiments-heading, .slider-label-meta { flex-wrap: wrap; gap: 10px 20px; }
.alter-experiments-heading { display: flex; justify-content: space-between; align-items: flex-end; border-bottom: 1px solid var(--border-grid); padding-bottom: 20px; margin-bottom: 24px; }
.lab-preview-box img, .exp-screen img { width: 100%; height: auto; aspect-ratio: 8 / 5; object-fit: cover; }
.alter-concept-caption { display: flex; flex-direction: column; gap: 8px; padding: 16px; background: var(--bg-white); color: var(--text-ink); }
.alter-concept-caption > * { max-width: 100%; }
.alter-concept-caption strong { font-family: var(--font-display); font-size: 16px; }
.alter-ai-label { font-family: var(--font-mono); font-size: 11px; line-height: 1.6; color: var(--magenta-signal); }
.alter-ai-note { font-family: var(--font-body); font-size: 13px; line-height: 1.7; color: var(--text-body); max-width: 75ch; margin: 16px 0; }
.alter-prototype-note { padding-top: 20px; padding-bottom: 20px; }
.alter-prototype-note p, .alter-form-note { max-width: 75ch; font-size: 14px; line-height: 1.7; color: var(--text-body); }
.alter-form-note { margin-bottom: 24px; }
.engine-input, .engine-select { min-width: 0; max-width: 100%; min-height: 44px; border-color: var(--text-muted); }
.engine-input:focus, .engine-select:focus { border-color: var(--cyan-signal); }
.slider-range { min-width: 0; max-width: 100%; min-height: 44px; }
.slider-label-meta label { cursor: pointer; }
.slider-label-meta span { max-width: 100%; }
@media (max-width: 900px) {
  .alter-header { position: static; }
  .hero-grid-avant { gap: 32px; }
}
@media (max-width: 600px) {
  .container, .alter-footer-inner, .alter-footer-bottom { padding-left: 20px; padding-right: 20px; }
  #experimentos.container { padding: 48px 20px !important; }
  .alter-nav > .btn-cyan-glitch { width: 100%; justify-content: center; }
  .concept-lab-frame, .engine-card, .exp-body { padding: 20px; }
  .alter-hero-wrap { padding: 48px 0; }
  .engine-section { padding: 48px 0; }
  .experiments-grid { gap: 24px; margin: 28px 0; }
}