/* ============================================================
   Helios Mallorca — styles.css
   Dark mode casi negro + acento único ámbar/dorado solar. Tipografía
   serif editorial (Fraunces) para titulares, mono técnica (IBM Plex
   Mono) para cifras. Ver references/estetica-experimental.md y
   references/animaciones.md de la skill web-builder.
   ============================================================ */

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body, h1, h2, h3, h4, p, figure, blockquote, ul, ol { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
input, select, textarea { font: inherit; color: inherit; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
}

/* ---------- Variables ---------- */
:root {
  --bg: #0a0908;
  --bg-alt: #100e0b;
  --bg-panel: #16130f;
  --bg-panel-2: #1c1712;
  --line: rgba(255,255,255,.08);
  --line-strong: rgba(255,255,255,.14);
  --ink: #f5f1ea;
  --ink-dim: #a89d8e;
  --ink-faint: #7d7468; /* NO usar para texto — 4.19:1 en bg-alt, incumple AA (4.5:1). Ver memoria.md. Reservada para elementos no textuales si hiciera falta. */
  --accent: #ffb020;
  --accent-ink: #1a1005;
  --accent-dim: rgba(255,176,32,.14);
  --accent-line: rgba(255,176,32,.35);

  --font-display: "Fraunces", "Georgia", serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --container: 1240px;
  --radius: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --ease: cubic-bezier(.16,.8,.24,1);
}

/* ---------- Base ---------- */
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  background: var(--accent); color: var(--accent-ink); padding: .8em 1.2em; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 760px; }

.section { padding: 120px 0; position: relative; scroll-margin-top: 84px; }
.section-alt { background: var(--bg-alt); }

.eyebrow {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: .78rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-optical-sizing: auto;
  font-size: clamp(2rem, 4.2vw, 3.2rem);
  line-height: 1.08;
  letter-spacing: -.01em;
  max-width: 18ch;
  margin-bottom: 20px;
}

.section-lede {
  font-size: 1.08rem;
  color: var(--ink-dim);
  max-width: 58ch;
  margin-bottom: 48px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 16px 30px;
  font-weight: 600;
  font-size: .95rem;
  letter-spacing: .01em;
  border-radius: 999px;
  transition: transform .25s var(--ease), background .25s var(--ease), color .25s var(--ease), box-shadow .25s var(--ease);
  white-space: nowrap;
}
.btn-sm { padding: 12px 22px; font-size: .85rem; }
.btn-accent {
  background: var(--accent);
  color: var(--accent-ink);
}
.btn-accent:hover { transform: translateY(-2px); box-shadow: 0 10px 30px -8px rgba(255,176,32,.5); }
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line-strong);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background .35s var(--ease), border-color .35s var(--ease), backdrop-filter .35s var(--ease);
}
.site-header.is-scrolled {
  background: rgba(10,9,8,.85);
  backdrop-filter: blur(10px);
  border-bottom-color: var(--line);
}
.header-inner {
  max-width: var(--container); margin: 0 auto; padding: 18px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); }
.brand-mark { color: var(--accent); display: inline-flex; }
.brand-name {
  font-family: var(--font-display); font-weight: 600; font-size: 1.1rem;
  letter-spacing: .03em;
}
.main-nav { display: flex; align-items: center; gap: 30px; }
.main-nav a {
  font-size: .85rem; font-weight: 500; color: var(--ink-dim);
  text-transform: uppercase; letter-spacing: .05em;
  transition: color .2s var(--ease);
  position: relative;
}
.main-nav a:hover { color: var(--ink); }
.main-nav a::after {
  content: ""; position: absolute; left: 0; bottom: -6px; width: 0; height: 1.5px;
  background: var(--accent); transition: width .25s var(--ease);
}
.main-nav a:hover::after { width: 100%; }

.header-actions { display: flex; align-items: center; gap: 16px; }
.header-cta { display: inline-flex; }

.nav-toggle {
  display: none; flex-direction: column; justify-content: center; gap: 5px;
  width: 40px; height: 40px;
}
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--ink); transition: transform .25s var(--ease), opacity .25s var(--ease); }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   HERO — mesh gradient animado + vídeo, entrada en cascada
   ============================================================ */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  overflow: clip;
  isolation: isolate;
  background: var(--bg);
}
.hero-media {
  position: absolute; inset: -10%; z-index: -3;
  transform-origin: center center;
  will-change: transform;
}
/* Mesh gradient: 3 manchas radiales independientes, cada una en su
   propia capa, animadas muy lento (28-40s) — ver animaciones.md, un
   único background-position no puede mover varios gradientes por
   separado. */
.mesh-blob {
  position: absolute; inset: -20%;
  filter: blur(110px);
  will-change: transform;
}
.mesh-blob-1 {
  background: radial-gradient(circle at 30% 35%, rgba(255,176,32,.4), transparent 60%);
  animation: meshDrift1 32s ease-in-out infinite alternate;
}
.mesh-blob-2 {
  background: radial-gradient(circle at 70% 60%, rgba(255,120,20,.28), transparent 55%);
  animation: meshDrift2 40s ease-in-out infinite alternate;
}
.mesh-blob-3 {
  background: radial-gradient(circle at 50% 80%, rgba(180,90,10,.22), transparent 55%);
  animation: meshDrift3 26s ease-in-out infinite alternate;
}
@keyframes meshDrift1 { 0% { transform: translate(0,0) scale(1); } 100% { transform: translate(5%,-4%) scale(1.08); } }
@keyframes meshDrift2 { 0% { transform: translate(0,0) scale(1); } 100% { transform: translate(-6%,3%) scale(1.05); } }
@keyframes meshDrift3 { 0% { transform: translate(0,0) scale(1); } 100% { transform: translate(3%,5%) scale(1.1); } }
@media (prefers-reduced-motion: reduce) {
  .mesh-blob { animation: none; }
}

/* Vídeo en su color real, sin mix-blend-mode (el "screen" anterior lo
   lavaba todo de ámbar) — mismo tratamiento que sol-de-mallorca-energia:
   opacidad plena, el contraste para el texto lo da .hero-overlay debajo,
   no un blend de color sobre el vídeo. El mesh ámbar sigue asomando en
   el borde del hero (el vídeo no llega a cubrirlo del todo), así que el
   toque de marca no desaparece del todo, solo deja de dominar. */
.hero-video {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; object-position: center;
  background: var(--bg);
}
.hero-overlay {
  position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(180deg, rgba(10,9,8,.55) 0%, rgba(10,9,8,.5) 35%, rgba(10,9,8,.92) 100%),
    radial-gradient(ellipse at 50% 40%, rgba(10,9,8,.2) 0%, rgba(10,9,8,.55) 55%, rgba(10,9,8,.8) 100%);
}
.hero-content {
  position: relative; text-align: center; max-width: 900px; padding: 0 24px;
  margin-top: 40px;
}
.hero .eyebrow { justify-content: center; }
.hero-title {
  font-family: var(--font-display); font-weight: 600; font-optical-sizing: auto;
  font-size: clamp(2.8rem, 7.4vw, 5.4rem);
  line-height: 1.02; letter-spacing: -.015em;
  margin-bottom: 26px;
  color: var(--ink);
}
.hero-sub {
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
  color: var(--ink-dim);
  max-width: 58ch; margin: 0 auto 36px;
}
.hero-actions { display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; }

/* Entrada en cascada: título → subtítulo → CTA, delays escalonados por
   --d inline en el HTML. Disparada por JS añadiendo .is-in (si JS falla,
   el contenido ya es visible por defecto vía .js .hero-cascade). */
.js .hero-cascade {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .9s var(--ease), transform .9s var(--ease);
  transition-delay: var(--d, 0ms);
}
.js .hero-cascade.is-in { opacity: 1; transform: translateY(0); }

.scroll-cue {
  position: absolute; bottom: 36px; left: 50%; transform: translateX(-50%);
  width: 26px; height: 44px; border: 1.5px solid var(--line-strong); border-radius: 999px;
  display: flex; justify-content: center; padding-top: 8px;
}
.scroll-cue span { width: 4px; height: 8px; background: var(--accent); border-radius: 999px; animation: scrollcue 1.8s ease-in-out infinite; }
@keyframes scrollcue { 0% { transform: translateY(0); opacity: 1; } 70% { opacity: .2; } 100% { transform: translateY(14px); opacity: 0; } }

/* ============================================================
   CALCULADORA — pieza signature
   ============================================================ */
.calc-section { position: relative; overflow: clip; background: var(--bg-alt); }
/* Grano sutil de fondo — mismo patrón que el film-grain de otros
   proyectos de esta skill, aquí en un panel de formulario en vez de
   sobre un vídeo. */
.calc-noise {
  position: absolute; inset: 0; z-index: 0;
  opacity: .04;
  mix-blend-mode: overlay;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100' height='100'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 140px 140px;
}
.calc-section .container { position: relative; z-index: 1; }
.calc-panel {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0;
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 40px 80px -40px rgba(0,0,0,.6);
}
.calc-form { padding: 48px; display: flex; flex-direction: column; gap: 32px; }
.calc-field label {
  display: block; font-weight: 600; font-size: .8rem; text-transform: uppercase; letter-spacing: .05em;
  color: var(--ink-dim); margin-bottom: 14px;
}
.calc-range-row { display: flex; align-items: center; gap: 16px; }
input[type="range"] {
  flex: 1; appearance: none; height: 4px; background: var(--line-strong); border-radius: 999px; outline: none;
}
input[type="range"]::-webkit-slider-thumb {
  appearance: none; width: 18px; height: 18px; border-radius: 50%; background: var(--accent);
  cursor: pointer; box-shadow: 0 0 0 4px var(--accent-dim);
}
input[type="range"]::-moz-range-thumb {
  width: 18px; height: 18px; border-radius: 50%; background: var(--accent); border: none; cursor: pointer;
  box-shadow: 0 0 0 4px var(--accent-dim);
}
.calc-number-unit {
  display: flex; align-items: center; gap: 6px;
  background: var(--bg-panel-2); border: 1px solid var(--line); border-radius: 8px; padding: 8px 12px;
  min-width: 104px;
}
.calc-number-unit input { width: 60px; background: none; border: none; color: var(--ink); font-family: var(--font-mono); font-weight: 500; text-align: right; }
.calc-number-unit input:focus { outline: none; }
.calc-number-unit span { color: var(--ink-dim); font-size: .8rem; font-family: var(--font-mono); }

select {
  width: 100%; padding: 12px 14px; background: var(--bg-panel-2); border: 1px solid var(--line);
  border-radius: 8px; color: var(--ink);
}

.calc-results {
  background: linear-gradient(160deg, var(--bg-panel-2), var(--bg-panel));
  padding: 48px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 28px 20px;
  align-content: start;
  border-left: 1px solid var(--line);
}
.calc-result { display: flex; flex-direction: column; gap: 6px; }
.calc-result-value {
  font-family: var(--font-mono); font-weight: 600; font-size: 2.3rem; line-height: 1;
  font-variant-numeric: tabular-nums;
}
.calc-result-label { font-size: .78rem; color: var(--ink-dim); text-transform: uppercase; letter-spacing: .04em; }
.calc-result-accent .calc-result-value { color: var(--accent); }
.calc-note { grid-column: 1 / -1; font-size: .85rem; color: var(--accent); min-height: 1.2em; }
.calc-actions { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }

.sim-disclaimer { margin-top: 24px; font-size: .82rem; color: var(--ink-dim); max-width: 80ch; }

/* ============================================================
   NOSOTROS / CIFRAS — vídeo de fondo, portado de sol-de-mallorca-energia
   (misma pieza de Pexels que usan detrás de su sección de resultados).
   ============================================================ */
.section-stats { position: relative; overflow: clip; }
.stats-bg {
  position: absolute; inset: 0; z-index: -2;
  width: 100%; height: 100%;
  object-fit: cover; object-position: center;
  filter: saturate(.65) brightness(.5);
  background: var(--bg);
}
.stats-overlay {
  position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(180deg, rgba(10,9,8,.85), rgba(10,9,8,.94));
}
.stat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.stat { text-align: left; }
.stat-number {
  display: block; font-family: var(--font-mono); font-weight: 600; font-size: clamp(2.2rem, 3.6vw, 3.2rem);
  color: var(--accent); line-height: 1; font-variant-numeric: tabular-nums;
}
.stat-label { display: block; margin-top: 10px; color: var(--ink-dim); text-transform: uppercase; letter-spacing: .04em; font-size: .8rem; }

/* ============================================================
   PLANES — tarjetas con tilt 3D
   ============================================================ */
.plan-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; perspective: 1200px; }
.plan-card {
  transform-style: preserve-3d;
  will-change: transform;
  /* Transición SOLO para el "muelle" de vuelta a plano al soltar — se
     desactiva mientras el cursor está encima (.is-tilting, ver
     js/tilt-cards.js) para que el seguimiento del tilt sea directo, sin
     el retraso que daría dejar la transición puesta todo el rato. */
  transition: transform .4s var(--ease);
}
.plan-card.is-tilting { transition: none; }
.plan-card-inner {
  height: 100%;
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  padding: 40px 34px;
  display: flex; flex-direction: column; gap: 18px;
  box-shadow: 0 30px 60px -40px rgba(0,0,0,.6);
  transition: transform .4s var(--ease);
}
.plan-card.is-tilting .plan-card-inner { transition: none; }
.plan-card-featured .plan-card-inner { border-color: var(--accent-line); background: var(--bg-panel-2); }
.plan-badge {
  align-self: flex-start;
  background: var(--accent-dim); color: var(--accent);
  font-family: var(--font-mono); font-size: .72rem; text-transform: uppercase; letter-spacing: .06em;
  padding: 5px 12px; border-radius: 999px;
}
.plan-name { font-family: var(--font-display); font-weight: 600; font-size: 1.5rem; }
.plan-price-value { font-family: var(--font-mono); font-weight: 600; font-size: 1.6rem; color: var(--ink); }
.plan-specs { display: flex; flex-direction: column; gap: 10px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 16px 0; }
.plan-specs li { display: flex; justify-content: space-between; font-size: .9rem; }
.plan-spec-label { color: var(--ink-dim); }
.plan-spec-value { font-family: var(--font-mono); color: var(--ink); }
.plan-desc { color: var(--ink-dim); font-size: .95rem; flex: 1; }

/* ============================================================
   CÓMO TRABAJAMOS — panel fijo (sticky) que se actualiza según el
   paso que va cruzando el centro de la pantalla al hacer scroll.
   Portado de sol-de-mallorca-energia (js/proceso-sticky.js), mismo
   patrón: IntersectionObserver con franja fina en el centro del
   viewport, sin cálculo de progreso continuo (aquí el cambio es
   discreto, no una animación). Ver memoria.md de la skill.
   ============================================================ */
.proceso-scroller { display: grid; grid-template-columns: 1fr 1.3fr; gap: 60px; align-items: start; }
.proceso-sticky { position: sticky; top: 140px; padding: 8px 0; }
.proceso-sticky-number {
  display: block; font-family: var(--font-mono); font-weight: 600; font-size: clamp(2.6rem, 5.4vw, 4.4rem);
  color: var(--accent); line-height: 1; margin-bottom: 18px;
}
.proceso-sticky-title {
  font-family: var(--font-display); font-weight: 600; font-optical-sizing: auto;
  font-size: clamp(1.5rem, 2.4vw, 2.1rem); letter-spacing: -.01em; margin-bottom: 16px;
}
.proceso-sticky-text { color: var(--ink-dim); font-size: 1.02rem; max-width: 40ch; }

.proceso-list { display: flex; flex-direction: column; }
.proceso-item {
  padding: 52px 0; border-top: 2px solid var(--line-strong);
  transition: border-color .3s var(--ease);
}
.proceso-item:last-child { border-bottom: 2px solid var(--line-strong); }
.proceso-item.is-active { border-top-color: var(--accent); }
/* Colores fijos, NUNCA opacity, para distinguir activo/inactivo — un
   proyecto anterior de esta skill incumplió AA usando opacity para esto
   (atenúa contra el fondo real, no es un efecto "gratis"). Ver
   memoria.md → "Rendimiento, accesibilidad y SEO local". */
.proceso-item-number {
  display: block; font-family: var(--font-mono); font-weight: 600; font-size: 1.4rem;
  color: #b8842b; margin-bottom: 14px; transition: color .3s var(--ease);
}
.proceso-item.is-active .proceso-item-number { color: var(--accent); }
.proceso-item h3 {
  font-family: var(--font-display); font-weight: 600; font-optical-sizing: auto;
  font-size: 1.3rem; margin-bottom: 10px; letter-spacing: -.005em; color: var(--ink-dim);
  transition: color .3s var(--ease);
}
.proceso-item.is-active h3 { color: var(--ink); }
.proceso-item p { color: var(--ink-dim); font-size: .98rem; max-width: 52ch; }

/* ============================================================
   CABECERA DE INSTALACIONES — título con scroll (Container Text Scroll
   de 21st.dev, portado): posición, escala e inclinación ligadas al
   progreso de scroll de la propia sección, con la imagen de fondo
   desplazándose a otro ritmo (parallax). Fórmula de progreso igual a
   la del scroll-3d de sol-de-mallorca-energia — ver
   references/react-a-vanilla.md.
   ============================================================ */
.text-scroll-section {
  position: relative; overflow: clip; isolation: isolate;
  min-height: 90vh;
  display: flex; align-items: center; justify-content: center;
  perspective: 1000px;
}
.text-scroll-media { position: absolute; inset: -12%; z-index: -2; will-change: transform; }
.text-scroll-media img { width: 100%; height: 100%; object-fit: cover; }
.text-scroll-overlay {
  position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(180deg, rgba(10,9,8,.55) 0%, rgba(10,9,8,.6) 45%, rgba(10,9,8,.88) 100%);
}
.text-scroll-title {
  font-family: var(--font-display); font-weight: 600; font-optical-sizing: auto;
  font-size: clamp(2.6rem, 7vw, 5.2rem); line-height: 1.02; letter-spacing: -.015em;
  text-align: center; color: var(--ink); padding: 0 24px;
  will-change: transform, filter, opacity;
}

/* ============================================================
   GALERÍA — bento/collage estilo portfolio (inspirado en Nocta), fotos
   en su color real. El duotono se reserva para la cabecera con scroll
   de arriba — aquí interesa que cada foto se lea como una instalación
   real distinta, no como una textura de marca repetida.
   ============================================================ */
.gallery-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 24px; }
.gallery-span-2 { grid-column: span 2; }
.gallery-span-3 { grid-column: span 3; }
.gallery-span-4 { grid-column: span 4; }

.gallery-item {
  position: relative; border-radius: var(--radius-lg); overflow: hidden; aspect-ratio: 4 / 3;
  transition: transform .3s var(--ease);
}
/* Una sola tarjeta con una ligera rotación estática (no todas — si
   todas están torcidas ya no se lee como "collage con criterio", se lee
   como un bug de layout). El :hover suma el lift SOBRE la rotación base
   en vez de sustituirla, para no perder la inclinación al pasar el
   ratón. */
.gallery-item-tilt { transform: rotate(-1.4deg); }
.gallery-item-tilt:hover { transform: rotate(-1.4deg) translateY(-4px); }
.gallery-item:not(.gallery-item-tilt):hover { transform: translateY(-4px); }

.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s var(--ease); }
.gallery-item:hover img { transform: scale(1.05); }
/* Sin acotar a .gallery-item: se reutiliza también en la cabecera de
   la sección (.text-scroll-media img.duotone). */
.duotone { filter: url(#duotone-amber); }

.gallery-index {
  position: absolute; top: 16px; right: 18px; z-index: 1;
  font-family: var(--font-mono); font-size: .78rem; color: rgba(245,241,234,.7);
  text-shadow: 0 1px 4px rgba(0,0,0,.85);
}
.gallery-item figcaption {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 20px 22px;
  background: linear-gradient(0deg, rgba(10,9,8,.82), rgba(10,9,8,0) 70%);
  font-family: var(--font-display); font-weight: 600; font-optical-sizing: auto;
  font-size: 1.08rem; color: var(--ink);
}

/* ============================================================
   TESTIMONIOS
   ============================================================ */
.testi-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.testi-card {
  background: var(--bg-panel); border: 1px solid var(--line); border-radius: var(--radius-xl);
  padding: 32px; transition: transform .3s var(--ease), border-color .3s var(--ease);
}
.testi-card:hover { transform: translateY(-4px); border-color: var(--accent-line); }
.testi-head { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.testi-avatar {
  width: 44px; height: 44px; border-radius: 50%; flex-shrink: 0;
  background: var(--accent); color: var(--accent-ink);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-weight: 600; font-size: .88rem;
}
.testi-name { font-weight: 700; font-size: .95rem; color: var(--ink); }
.testi-location { font-size: .8rem; color: var(--ink-dim); }
.testi-stars { color: var(--accent); letter-spacing: .1em; margin-bottom: 14px; }
.testi-quote { color: var(--ink); font-size: 1rem; }

/* ============================================================
   FAQ
   ============================================================ */
.faq-list { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-q {
  width: 100%; text-align: left; padding: 24px 0; display: flex; justify-content: space-between; align-items: center;
  font-family: var(--font-display); font-weight: 600; font-size: 1.1rem;
  gap: 20px;
}
.faq-q::after {
  content: "+"; font-family: var(--font-mono); font-size: 1.4rem; color: var(--accent); flex-shrink: 0; transition: transform .3s var(--ease);
}
.faq-q[aria-expanded="true"]::after { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .35s var(--ease); }
.faq-a p { padding: 0 0 24px; color: var(--ink-dim); max-width: 68ch; }

/* ============================================================
   CONTACTO
   ============================================================ */
.contact-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; }
.contact-form { display: flex; flex-direction: column; gap: 20px; }
.form-row { display: flex; flex-direction: column; gap: 8px; }
.form-row label { font-size: .8rem; font-weight: 600; text-transform: uppercase; letter-spacing: .04em; color: var(--ink-dim); }
.form-row input[type="text"], .form-row input[type="tel"], .form-row input[type="email"], .form-row textarea {
  background: var(--bg-panel); border: 1px solid var(--line); border-radius: 8px; padding: 14px 16px; color: var(--ink);
  transition: border-color .25s var(--ease);
}
.form-row input:focus, .form-row textarea:focus { border-color: var(--accent); outline: none; }
.form-row textarea { resize: vertical; }
.form-row-check { flex-direction: row; align-items: center; gap: 10px; }
.form-row-check label { text-transform: none; font-weight: 500; font-size: .88rem; }
.form-row input.invalid, .form-row textarea.invalid { border-color: #e0684f; }
.form-status { font-size: .9rem; min-height: 1.4em; color: var(--accent); }
.form-note { font-size: .82rem; color: var(--ink-dim); }
.form-note a { color: var(--accent); }

.contact-list { display: flex; flex-direction: column; gap: 18px; margin-bottom: 28px; }
.contact-list li { display: flex; flex-direction: column; gap: 4px; padding-bottom: 18px; border-bottom: 1px solid var(--line); }
.contact-label { font-size: .76rem; text-transform: uppercase; letter-spacing: .05em; color: var(--ink-dim); }
.contact-list a:hover { color: var(--accent); }
.contact-map { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); filter: grayscale(.4) invert(.9) contrast(.9) sepia(.15); }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer { background: var(--bg-alt); border-top: 1px solid var(--line); padding: 80px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 56px; }
.footer-brand p { color: var(--ink-dim); margin-top: 14px; max-width: 32ch; }
.footer-col { display: flex; flex-direction: column; gap: 12px; }
.footer-col h3 { font-family: var(--font-mono); font-size: .76rem; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-dim); margin-bottom: 4px; }
.footer-col a, .footer-col span { color: var(--ink-dim); font-size: .92rem; }
.footer-col a:hover { color: var(--accent); }
.footer-legal {
  border-top: 1px solid var(--line); padding: 24px 24px 32px;
  display: flex; flex-direction: column; gap: 6px;
  font-size: .8rem; color: var(--ink-dim);
}

/* ============================================================
   WHATSAPP FLOAT
   ============================================================ */
.whatsapp-float {
  position: fixed; right: 24px; bottom: 24px; z-index: 90;
  width: 58px; height: 58px; border-radius: 50%;
  background: #25D366; color: #06210f;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 10px 30px -6px rgba(0,0,0,.5);
  transition: transform .25s var(--ease);
}
.whatsapp-float:hover { transform: scale(1.08); }

/* ============================================================
   SCROLL REVEAL — calmado, sin stagger marcado
   ============================================================ */
.js .reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.js .reveal.is-visible { opacity: 1; transform: translateY(0); }

.scroll-progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 0%;
  background: var(--accent); z-index: 110;
  box-shadow: 0 0 12px rgba(255,176,32,.6);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1080px) {
  .plan-grid, .testi-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-row { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .main-nav { display: none; }
  .nav-toggle { display: flex; }
  .header-cta { display: none; }

  .site-header.menu-open .main-nav {
    display: flex; flex-direction: column; position: fixed; inset: 0; top: 74px;
    background: var(--bg); padding: 40px 24px; gap: 8px; z-index: 99;
  }
  .site-header.menu-open .main-nav a { padding: 16px 0; border-bottom: 1px solid var(--line); font-size: 1.1rem; }

  .calc-panel { grid-template-columns: 1fr; }
  .calc-results { border-left: none; border-top: 1px solid var(--line); }
  .proceso-scroller { grid-template-columns: 1fr; }
  /* Sin sticky (poco espacio en móvil), el panel fijo no podría seguir el
     scroll y solo duplicaría el texto del paso activo. */
  .proceso-sticky { display: none; }
  .gallery-grid { grid-template-columns: 1fr 1fr; }
  .gallery-span-2, .gallery-span-3, .gallery-span-4 { grid-column: span 1; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .plan-grid { perspective: none; }
}

@media (max-width: 560px) {
  .section { padding: 80px 0; }
  .plan-grid, .testi-grid, .stat-row, .gallery-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .calc-form, .calc-results { padding: 32px 24px; }
  .proceso-item { padding: 36px 0; }
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn { width: 100%; }
  /* La rotación estática se apaga en móvil: en una columna única, una
     tarjeta torcida se lee como un fallo de maquetación, no como collage. */
  .gallery-item-tilt, .gallery-item-tilt:hover { transform: translateY(0); }
}