/* ===========================================================
   INTIKA SANCTUARY GROUP — aintika.com
   Misticismo Tecnológico · Cosmovisión Andina + IA
   =========================================================== */

/* --- 1. RESET & BASE ------------------------------------- */

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.6;
  color: var(--blanco-puro);
  background-color: var(--gris-piedra);
  background-image:
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 0.035 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  overflow-x: hidden;
  min-height: 100vh;
}

img,
svg,
video,
canvas {
  display: block;
  max-width: 100%;
}

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}

/* --- 2. DESIGN TOKENS ------------------------------------ */

:root {
  /* Paleta oficial */
  --gris-piedra: #12100E;
  --gris-piedra-claro: #1C1A18;
  --gris-piedra-medio: #252321;
  --celeste-glaciar: #48CAE4;
  --celeste-glaciar-soft: rgba(72, 202, 228, 0.15);
  --arcilla: #D4BBA5;
  --blanco-puro: #FFFFFF;
  --texto-mute: rgba(255, 255, 255, 0.55);
  --linea-sutil: rgba(72, 202, 228, 0.18);

  /* Tipografía */
  --font-display: "Manrope", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --font-quechua: "Cormorant Garamond", "Times New Roman", serif;

  /* Escala tipográfica fluida */
  --fs-mega: clamp(3.5rem, 11vw, 9rem);
  --fs-display: clamp(2.5rem, 6vw, 4.5rem);
  --fs-h1: clamp(2rem, 4.5vw, 3.25rem);
  --fs-h2: clamp(1.5rem, 2.8vw, 2rem);
  --fs-h3: clamp(1.15rem, 1.8vw, 1.4rem);
  --fs-body: clamp(1rem, 1.1vw, 1.0625rem);
  --fs-small: 0.875rem;
  --fs-micro: 0.75rem;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 8rem;
  --space-2xl: 12rem;

  /* Layout */
  --container: 1280px;
  --container-narrow: 880px;

  /* Motion */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out-quart: cubic-bezier(0.76, 0, 0.24, 1);
  --duration-fast: 200ms;
  --duration-base: 400ms;
  --duration-slow: 800ms;
}

/* --- 3. TYPOGRAPHY --------------------------------------- */

.font-display { font-family: var(--font-display); }
.font-quechua { font-family: var(--font-quechua); font-style: italic; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
}

h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); font-weight: 600; }

.eyebrow {
  font-family: var(--font-body);
  font-size: var(--fs-micro);
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--celeste-glaciar);
}

.eyebrow::before {
  content: "";
  display: inline-block;
  width: 32px;
  height: 1px;
  background: var(--celeste-glaciar);
  vertical-align: middle;
  margin-right: var(--space-sm);
  transform: translateY(-2px);
}

.lead {
  font-size: clamp(1.1rem, 1.6vw, 1.35rem);
  line-height: 1.5;
  color: var(--arcilla);
  max-width: 60ch;
}

.quechua-quote {
  font-family: var(--font-quechua);
  font-style: italic;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  line-height: 1.3;
  color: var(--arcilla);
}

/* --- 4. LAYOUT ------------------------------------------- */

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}

.container-narrow {
  width: 100%;
  max-width: var(--container-narrow);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}

section {
  position: relative;
  padding-block: clamp(5rem, 10vw, 9rem);
}

.section-divider {
  width: 100%;
  height: 1px;
  background: var(--linea-sutil);
  margin: 0;
  border: 0;
}

/* --- 5. HEADER / NAV ------------------------------------- */

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  padding-block: 1.25rem;
  transition: background-color var(--duration-base) var(--ease-out-expo),
              backdrop-filter var(--duration-base) var(--ease-out-expo),
              border-color var(--duration-base) var(--ease-out-expo);
  border-bottom: 1px solid transparent;
}

.site-header.scrolled {
  background-color: rgba(18, 16, 14, 0.78);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-bottom-color: var(--linea-sutil);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: 0.08em;
  font-size: 0.95rem;
  text-transform: uppercase;
}

.nav-brand-mark {
  width: 28px;
  height: 28px;
  position: relative;
}

.nav-list {
  list-style: none;
  display: flex;
  gap: clamp(1.25rem, 2.5vw, 2.25rem);
  align-items: center;
}

.nav-link {
  font-size: var(--fs-small);
  font-weight: 500;
  position: relative;
  padding: 0.5rem 0;
  transition: color var(--duration-fast) var(--ease-out-expo);
  display: inline-flex;
  align-items: baseline;
  gap: 0.4rem;
}

.nav-link-num {
  font-size: var(--fs-micro);
  color: var(--celeste-glaciar);
  font-variant-numeric: tabular-nums;
}

.nav-link::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background: var(--celeste-glaciar);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--duration-base) var(--ease-out-expo);
}

.nav-link:hover::after,
.nav-link.is-active::after {
  transform: scaleX(1);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.lang-switch {
  display: flex;
  gap: 0.35rem;
  align-items: center;
  font-size: var(--fs-micro);
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.lang-switch a {
  padding: 0.35rem 0.5rem;
  color: var(--texto-mute);
  transition: color var(--duration-fast);
}

.lang-switch a.is-current {
  color: var(--celeste-glaciar);
}

.lang-switch a:hover {
  color: var(--blanco-puro);
}

.lang-sep {
  color: var(--texto-mute);
  opacity: 0.5;
}

.nav-toggle {
  display: none;
  width: 32px;
  height: 32px;
  position: relative;
  z-index: 110;
}

.nav-toggle span {
  position: absolute;
  inset-inline: 6px;
  height: 1px;
  background: var(--blanco-puro);
  transition: transform var(--duration-base) var(--ease-out-expo),
              opacity var(--duration-fast);
}

.nav-toggle span:nth-child(1) { top: 12px; }
.nav-toggle span:nth-child(2) { top: 50%; transform: translateY(-50%); }
.nav-toggle span:nth-child(3) { bottom: 12px; }

body.menu-open .nav-toggle span:nth-child(1) {
  transform: translateY(4px) rotate(45deg);
}
body.menu-open .nav-toggle span:nth-child(2) { opacity: 0; }
body.menu-open .nav-toggle span:nth-child(3) {
  transform: translateY(-4px) rotate(-45deg);
}

/* --- 6. HERO --------------------------------------------- */

.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 6rem;
}

#rain-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

.hero-eyebrow {
  margin-bottom: var(--space-md);
  opacity: 0;
  animation: fadeUp var(--duration-slow) var(--ease-out-expo) 200ms forwards;
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--fs-mega);
  line-height: 0.92;
  letter-spacing: -0.045em;
  margin-bottom: var(--space-md);
}

.hero-title .word {
  display: inline-block;
  opacity: 0;
  transform: translateY(40px);
  animation: fadeUp var(--duration-slow) var(--ease-out-expo) forwards;
}

.hero-title .word:nth-child(1) { animation-delay: 350ms; }
.hero-title .word:nth-child(2) { animation-delay: 500ms; }
.hero-title .word:nth-child(3) { animation-delay: 650ms; }

.hero-tagline {
  font-family: var(--font-quechua);
  font-style: italic;
  font-size: clamp(1.4rem, 2.6vw, 2rem);
  color: var(--arcilla);
  max-width: 32ch;
  margin-bottom: var(--space-lg);
  opacity: 0;
  animation: fadeUp var(--duration-slow) var(--ease-out-expo) 850ms forwards;
}

.hero-meta {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-md);
  align-items: end;
  padding-top: var(--space-md);
  border-top: 1px solid var(--linea-sutil);
  max-width: 720px;
  opacity: 0;
  animation: fadeUp var(--duration-slow) var(--ease-out-expo) 1050ms forwards;
}

.hero-meta-block {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.hero-meta-label {
  font-size: var(--fs-micro);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--texto-mute);
}

.hero-meta-value {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--blanco-puro);
}

.hero-scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  font-size: var(--fs-micro);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--texto-mute);
  opacity: 0;
  animation: fadeIn var(--duration-slow) var(--ease-out-expo) 1400ms forwards;
}

.hero-scroll-hint::after {
  content: "";
  width: 1px;
  height: 36px;
  background: linear-gradient(to bottom, var(--celeste-glaciar), transparent);
  animation: scrollPulse 2.4s var(--ease-in-out-quart) infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.6); transform-origin: top; }
  50% { opacity: 1; transform: scaleY(1); transform-origin: top; }
}

@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  to { opacity: 1; }
}

/* --- 7. SECTION HEADERS --------------------------------- */

.section-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  max-width: 880px;
}

.section-header .eyebrow {
  margin-bottom: var(--space-sm);
}

.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-display);
  line-height: 1;
  letter-spacing: -0.035em;
}

.section-intro {
  color: var(--arcilla);
  font-size: clamp(1.05rem, 1.4vw, 1.2rem);
  line-height: 1.55;
  max-width: 60ch;
}

/* --- 8. ORIGEN — los tres mundos ------------------------ */

.three-worlds {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1px;
  background: var(--linea-sutil);
  border-block: 1px solid var(--linea-sutil);
  margin-top: var(--space-lg);
}

.world-card {
  background: var(--gris-piedra);
  padding: clamp(2rem, 4vw, 3.5rem);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  position: relative;
  transition: background-color var(--duration-base) var(--ease-out-expo);
}

.world-card:hover {
  background: var(--gris-piedra-claro);
}

.world-glyph {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-sm);
  color: var(--celeste-glaciar);
}

.world-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.6rem;
  letter-spacing: -0.02em;
}

.world-quechua {
  font-family: var(--font-quechua);
  font-style: italic;
  font-size: 1.15rem;
  color: var(--celeste-glaciar);
  margin-top: -0.25rem;
}

.world-desc {
  color: var(--texto-mute);
  font-size: 0.95rem;
  line-height: 1.6;
}

.foundation-band {
  margin-top: var(--space-xl);
  padding: clamp(2rem, 4vw, 3rem);
  border: 1px solid var(--linea-sutil);
  background: linear-gradient(135deg, var(--gris-piedra-claro) 0%, transparent 100%);
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: var(--space-md);
  align-items: center;
}

.foundation-pct {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(3.5rem, 7vw, 5.5rem);
  color: var(--celeste-glaciar);
  line-height: 1;
  letter-spacing: -0.04em;
}

.foundation-text strong {
  font-family: var(--font-display);
  font-weight: 700;
  display: block;
  font-size: 1.25rem;
  margin-bottom: 0.4rem;
}

.foundation-text span {
  color: var(--texto-mute);
  font-size: 0.95rem;
}

/* --- 9. AGUA -------------------------------------------- */

.water-feature {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-lg);
  align-items: center;
  margin-top: var(--space-lg);
}

.water-visual {
  aspect-ratio: 4 / 5;
  background: linear-gradient(180deg,
    var(--celeste-glaciar) 0%,
    rgba(72, 202, 228, 0.25) 35%,
    var(--gris-piedra-medio) 70%,
    var(--arcilla) 100%);
  position: relative;
  overflow: hidden;
  border: 1px solid var(--linea-sutil);
}

.water-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.6' numOctaves='3'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 0.08 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

.water-visual::after {
  content: "AYNI WATER";
  position: absolute;
  inset: auto 0 1.5rem 1.5rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.03em;
  color: var(--gris-piedra);
  mix-blend-mode: overlay;
}

.water-content h3 {
  font-size: clamp(1.5rem, 2.4vw, 2rem);
  margin-bottom: var(--space-sm);
}

.water-content p {
  color: var(--arcilla);
  margin-bottom: var(--space-md);
  line-height: 1.6;
}

/* --- 10. TECNOLOGÍA ------------------------------------- */

.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.tech-card {
  background: var(--gris-piedra-claro);
  border: 1px solid var(--linea-sutil);
  padding: clamp(1.5rem, 2.5vw, 2.25rem);
  position: relative;
  transition: border-color var(--duration-base) var(--ease-out-expo),
              transform var(--duration-base) var(--ease-out-expo);
}

.tech-card:hover {
  border-color: var(--celeste-glaciar);
  transform: translateY(-4px);
}

.tech-card-tag {
  font-size: var(--fs-micro);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--celeste-glaciar);
  margin-bottom: var(--space-sm);
}

.tech-card h3 {
  font-size: 1.4rem;
  margin-bottom: var(--space-sm);
}

.tech-card p {
  color: var(--texto-mute);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: var(--space-md);
}

.tech-stack {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--linea-sutil);
}

.tech-stack li {
  font-size: var(--fs-micro);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--texto-mute);
  padding: 0.3rem 0.6rem;
  border: 1px solid var(--linea-sutil);
}

/* --- 11. EL CÍRCULO — diagrama de 10 nodos -------------- */

.circle-wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  margin-top: var(--space-lg);
}

.circle-diagram {
  position: relative;
  width: 100%;
  max-width: 720px;
  aspect-ratio: 1 / 1;
  margin-inline: auto;
}

.circle-diagram svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}

.circle-node {
  cursor: pointer;
  transition: transform var(--duration-base) var(--ease-out-expo);
  transform-origin: center;
  transform-box: fill-box;
}

.circle-node:hover {
  transform: scale(1.18);
}

.circle-node circle {
  fill: var(--gris-piedra-claro);
  stroke: var(--celeste-glaciar);
  stroke-width: 1.5;
  transition: fill var(--duration-fast);
}

.circle-node:hover circle {
  fill: var(--celeste-glaciar);
}

.circle-node text {
  fill: var(--blanco-puro);
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 500;
  text-anchor: middle;
  pointer-events: none;
}

.circle-node:hover text {
  fill: var(--gris-piedra);
  font-weight: 700;
}

.circle-line {
  stroke: var(--linea-sutil);
  stroke-width: 1;
  fill: none;
}

.circle-center text {
  fill: var(--celeste-glaciar);
  font-family: var(--font-quechua);
  font-style: italic;
  font-size: 28px;
  text-anchor: middle;
  dominant-baseline: middle;
}

.nodes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1px;
  background: var(--linea-sutil);
  border: 1px solid var(--linea-sutil);
}

.node-card {
  background: var(--gris-piedra);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: background-color var(--duration-base) var(--ease-out-expo);
  position: relative;
}

.node-card:hover {
  background: var(--gris-piedra-claro);
}

.node-card:hover .node-arrow {
  transform: translate(4px, -4px);
  color: var(--celeste-glaciar);
}

.node-num {
  font-family: var(--font-display);
  font-size: var(--fs-micro);
  letter-spacing: 0.2em;
  color: var(--celeste-glaciar);
  font-variant-numeric: tabular-nums;
}

.node-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.01em;
}

.node-tagline {
  font-size: 0.875rem;
  color: var(--texto-mute);
  line-height: 1.5;
}

.node-arrow {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  width: 18px;
  height: 18px;
  color: var(--texto-mute);
  transition: transform var(--duration-base) var(--ease-out-expo),
              color var(--duration-fast);
}

/* --- 12. MEMORIAS --------------------------------------- */

.memories-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-auto-rows: 180px;
  gap: 1rem;
  margin-top: var(--space-lg);
}

.memory-cell {
  background: var(--gris-piedra-claro);
  border: 1px solid var(--linea-sutil);
  position: relative;
  overflow: hidden;
  transition: border-color var(--duration-base);
}

.memory-cell:hover {
  border-color: var(--celeste-glaciar);
}

.memory-cell:nth-child(1) { grid-column: span 5; grid-row: span 2; }
.memory-cell:nth-child(2) { grid-column: span 4; grid-row: span 1; }
.memory-cell:nth-child(3) { grid-column: span 3; grid-row: span 1; }
.memory-cell:nth-child(4) { grid-column: span 3; grid-row: span 1; }
.memory-cell:nth-child(5) { grid-column: span 4; grid-row: span 1; }
.memory-cell:nth-child(6) { grid-column: span 5; grid-row: span 1; }
.memory-cell:nth-child(7) { grid-column: span 7; grid-row: span 1; }

.memory-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--texto-mute);
  font-size: var(--fs-micro);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  background:
    linear-gradient(135deg, var(--gris-piedra-claro) 0%, var(--gris-piedra-medio) 100%);
}

/* --- 13. CONEXIÓN / FORM ------------------------------- */

.connect-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: var(--space-xl);
  margin-top: var(--space-lg);
  align-items: start;
}

.connect-info h3 {
  font-size: clamp(1.4rem, 2vw, 1.75rem);
  margin-bottom: var(--space-sm);
}

.connect-info p {
  color: var(--arcilla);
  margin-bottom: var(--space-md);
  max-width: 50ch;
}

.connect-channels {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--linea-sutil);
  border-block: 1px solid var(--linea-sutil);
  margin-top: var(--space-md);
}

.connect-channels li {
  background: var(--gris-piedra);
  padding: 1.1rem 0;
  display: grid;
  grid-template-columns: 100px 1fr auto;
  gap: var(--space-sm);
  align-items: center;
  font-size: 0.95rem;
}

.connect-channels span:first-child {
  font-size: var(--fs-micro);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--celeste-glaciar);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.field label {
  font-size: var(--fs-micro);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--texto-mute);
}

.field input,
.field textarea {
  font: inherit;
  color: var(--blanco-puro);
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--linea-sutil);
  padding: 0.6rem 0;
  resize: vertical;
  transition: border-color var(--duration-fast);
}

.field input:focus,
.field textarea:focus {
  outline: none;
  border-bottom-color: var(--celeste-glaciar);
}

.field textarea {
  min-height: 120px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 1rem 1.6rem;
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--blanco-puro);
  background: transparent;
  border: 1px solid var(--celeste-glaciar);
  cursor: pointer;
  transition: background-color var(--duration-base) var(--ease-out-expo),
              color var(--duration-base);
  align-self: flex-start;
}

.btn:hover {
  background: var(--celeste-glaciar);
  color: var(--gris-piedra);
}

.btn-arrow {
  width: 14px;
  height: 14px;
  transition: transform var(--duration-base) var(--ease-out-expo);
}

.btn:hover .btn-arrow {
  transform: translateX(4px);
}

/* --- 14. FOOTER ----------------------------------------- */

.site-footer {
  border-top: 1px solid var(--linea-sutil);
  padding-block: var(--space-lg) var(--space-md);
  margin-top: var(--space-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-brand-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: -0.02em;
}

.footer-brand p {
  color: var(--texto-mute);
  max-width: 36ch;
  font-size: 0.9rem;
  line-height: 1.6;
}

.footer-col h4 {
  font-size: var(--fs-micro);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--celeste-glaciar);
  margin-bottom: var(--space-sm);
  font-weight: 500;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-col a {
  font-size: 0.9rem;
  color: var(--texto-mute);
  transition: color var(--duration-fast);
}

.footer-col a:hover {
  color: var(--blanco-puro);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-md);
  border-top: 1px solid var(--linea-sutil);
  font-size: var(--fs-micro);
  color: var(--texto-mute);
  letter-spacing: 0.1em;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

/* --- 15. WHATSAPP FLOTANTE ----------------------------- */

.wa-float {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 90;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--celeste-glaciar);
  color: var(--gris-piedra);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 30px rgba(72, 202, 228, 0.35);
  transition: transform var(--duration-base) var(--ease-out-expo),
              box-shadow var(--duration-base);
}

.wa-float:hover {
  transform: scale(1.08);
  box-shadow: 0 15px 40px rgba(72, 202, 228, 0.5);
}

.wa-float svg {
  width: 26px;
  height: 26px;
}

/* --- 16. NFC MODAL ------------------------------------- */

.nfc-modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-base) var(--ease-out-expo);
}

.nfc-modal[aria-hidden="false"] {
  opacity: 1;
  pointer-events: auto;
}

.nfc-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(18, 16, 14, 0.78);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
}

.nfc-modal-card {
  position: relative;
  background: var(--gris-piedra-claro);
  border: 1px solid var(--linea-sutil);
  width: 100%;
  max-width: 460px;
  max-height: calc(100vh - 3rem);
  overflow-y: auto;
  padding: 2rem;
  transform: translateY(20px) scale(0.96);
  opacity: 0;
  transition: transform var(--duration-base) var(--ease-out-expo),
              opacity var(--duration-base);
}

.nfc-modal[aria-hidden="false"] .nfc-modal-card {
  transform: translateY(0) scale(1);
  opacity: 1;
}

.nfc-modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--texto-mute);
  transition: color var(--duration-fast);
}

.nfc-modal-close:hover { color: var(--blanco-puro); }

.nfc-modal-header {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  align-items: center;
  text-align: center;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--linea-sutil);
}

.nfc-avatar {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background: var(--gris-piedra);
  border: 1px solid var(--celeste-glaciar);
  background-size: cover;
  background-position: center;
  position: relative;
  overflow: hidden;
}

.nfc-avatar.no-photo::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 30% 30%, var(--celeste-glaciar-soft), transparent 60%),
    var(--gris-piedra);
}

.nfc-modal-body {
  padding-top: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.nfc-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.7rem;
  letter-spacing: -0.02em;
  text-align: center;
}

.nfc-role {
  text-align: center;
  color: var(--celeste-glaciar);
  font-size: 0.95rem;
  font-weight: 500;
}

.nfc-company {
  text-align: center;
  color: var(--texto-mute);
  font-size: var(--fs-micro);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.nfc-note {
  margin-top: 1rem;
  padding: 1rem 1.1rem;
  background: var(--gris-piedra);
  border-left: 2px solid var(--celeste-glaciar);
}

.nfc-note .eyebrow {
  margin-bottom: 0.5rem;
  display: block;
}

.nfc-note p {
  font-family: var(--font-quechua);
  font-style: italic;
  font-size: 1.05rem;
  color: var(--arcilla);
  line-height: 1.4;
}

.nfc-actions {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-top: 1.5rem;
}

.nfc-actions .btn {
  align-self: stretch;
  justify-content: center;
}

.btn-ghost {
  border-color: var(--linea-sutil);
  color: var(--texto-mute);
}

.btn-ghost:hover {
  background: transparent;
  border-color: var(--celeste-glaciar);
  color: var(--celeste-glaciar);
}

.nfc-explore {
  margin-top: 1.25rem;
  text-align: center;
  font-size: var(--fs-small);
  color: var(--texto-mute);
  padding-top: 1rem;
  border-top: 1px solid var(--linea-sutil);
  transition: color var(--duration-fast);
}

.nfc-explore:hover { color: var(--celeste-glaciar); }

body.nfc-modal-open {
  overflow: hidden;
}

/* --- 17. RESPONSIVE ------------------------------------- */

@media (max-width: 960px) {
  .nav-toggle { display: block; }

  .nav-list {
    position: fixed;
    inset: 0;
    background: var(--gris-piedra);
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: 6rem 2rem 2rem;
    gap: 1.5rem;
    transform: translateX(100%);
    transition: transform var(--duration-base) var(--ease-in-out-quart);
    z-index: 105;
  }

  body.menu-open .nav-list {
    transform: translateX(0);
  }

  .nav-list .nav-link {
    font-size: 1.5rem;
    font-family: var(--font-display);
    font-weight: 600;
  }

  .water-feature,
  .connect-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .foundation-band {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .memories-grid {
    grid-template-columns: repeat(6, 1fr);
    grid-auto-rows: 140px;
  }
  .memory-cell:nth-child(n) { grid-column: span 6; grid-row: span 1; }
  .memory-cell:nth-child(1) { grid-column: span 6; grid-row: span 2; }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer-brand { grid-column: span 2; }
}

@media (max-width: 560px) {
  .hero {
    padding-top: 5rem;
  }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-brand { grid-column: span 1; }
  .connect-channels li {
    grid-template-columns: 1fr;
    gap: 0.3rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  #rain-canvas { display: none; }
}