/* =========================================================================
   ACTIVIDADES CN — Editorial Luxury design system
   Fraunces (display) + Plus Jakarta Sans (body) · warm cream + espresso + architectural blue
   ========================================================================= */

/* ----------------------------- Tokens ----------------------------- */
:root {
  /* palette */
  --paper:      #f6f1e8;
  --paper-2:    #fbf7f0;
  --card:       #fcf9f3;
  --sand:       #ece3d4;
  --sand-2:     #e1d7c5;
  --ink:        #211d18;
  --ink-soft:   #4c453b;
  --muted:      #6c6453;        /* darkened for WCAG AA on cream + sand-hover */
  --line:       rgba(33, 29, 24, 0.12);
  --line-soft:  rgba(33, 29, 24, 0.07);
  --blue:       #1f4b73;        /* primary accent */
  --blue-deep:  #163a5a;        /* dark-surface variant */
  --blue-bright:#2e6fa8;        /* hover / dot */
  --blue-pale:  #a9cbe6;        /* single light-on-dark accent */
  --danger:     #b4452f;        /* form error */
  --on-blue:    #f3efe6;

  /* type */
  --font-display: "Fraunces", Georgia, "Times New Roman", serif;
  --font-sans: "Plus Jakarta Sans", system-ui, -apple-system, Segoe UI, sans-serif;

  /* fluid scale */
  --fs-eyebrow: 0.72rem;
  --fs-body: 1.0625rem;
  --fs-lead: clamp(1.1rem, 0.9rem + 0.9vw, 1.32rem);
  --fs-h4: clamp(1.15rem, 1rem + 0.5vw, 1.28rem);   /* section subtitle step */
  --fs-h3: clamp(1.35rem, 1.05rem + 1.3vw, 1.85rem);/* card title step */
  --fs-h2: clamp(2rem, 1.35rem + 2.7vw, 3.4rem);
  --fs-h1: clamp(2.7rem, 1.5rem + 5vw, 5.4rem);
  --fs-item: 1.02rem;   /* unified list-item title */

  /* spacing */
  --pad-section: clamp(4.5rem, 3rem + 7vw, 9rem);
  --container: 1240px;
  --gutter: clamp(1.25rem, 0.6rem + 3vw, 3rem);

  /* radii */
  --r-lg: 28px;
  --r-md: 18px;
  --r-sm: 12px;
  --bezel-pad: 7px;

  /* shadows (warm-tinted, diffuse) */
  --shadow-sm: 0 2px 10px -4px rgba(33, 29, 24, 0.10);
  --shadow-md: 0 22px 50px -26px rgba(33, 29, 24, 0.30);
  --shadow-lg: 0 50px 90px -38px rgba(33, 29, 24, 0.40);

  /* motion */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.32, 0.72, 0, 1);
}

/* ----------------------------- Reset ----------------------------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
body.no-scroll { overflow: hidden; }

img, svg { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; background: none; border: none; }
ul, ol { list-style: none; padding: 0; }
:focus-visible { outline: 2px solid var(--blue-bright); outline-offset: 3px; border-radius: 4px; }
main:focus { outline: none; }

h1, h2, h3, h4, h5 { font-family: var(--font-display); font-weight: 500; font-optical-sizing: auto; line-height: 1.05; letter-spacing: -0.01em; }
em { font-style: italic; }

.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }

/* ----------------------------- Atmosphere ----------------------------- */
.grain {
  position: fixed; inset: 0; z-index: 2; pointer-events: none;
  opacity: 0.035; mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.scroll-progress { position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 60; background: transparent; pointer-events: none; }
.scroll-progress span { display: block; height: 100%; width: 100%; transform: scaleX(0); transform-origin: left; will-change: transform; background: linear-gradient(90deg, var(--blue), var(--blue-bright)); }

.skip-link { position: fixed; top: -60px; left: 1rem; z-index: 100; background: var(--ink); color: var(--paper); padding: 0.6rem 1rem; border-radius: 10px; transition: top 0.25s var(--ease); }
.skip-link:focus { top: 1rem; }

/* ----------------------------- Brand mark ----------------------------- */
.brand { display: inline-flex; align-items: center; gap: 0.7rem; }
.brand__mark { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 11px; background: var(--ink); flex: none; }
.brand__mark svg { width: 26px; height: 23px; overflow: visible; }
.brand__roof { fill: none; stroke-linejoin: round; stroke-linecap: round; }
.brand__roof--outer { stroke: var(--blue-bright); stroke-width: 2.4; }
.brand__roof--inner { stroke: var(--paper); stroke-width: 2.2; }
.brand__type { display: flex; flex-direction: column; line-height: 1; }
.brand__name { font-family: var(--font-display); font-weight: 600; font-size: 1.18rem; letter-spacing: -0.01em; color: var(--ink); }
.brand__cn { color: var(--blue); margin-left: 0.28em; }
.brand__tag { font-size: 0.6rem; text-transform: uppercase; letter-spacing: 0.22em; color: var(--muted); margin-top: 0.32rem; font-weight: 600; }

/* ----------------------------- Nav ----------------------------- */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 50; padding: clamp(0.7rem, 0.4rem + 0.9vw, 1.3rem) var(--gutter); display: flex; justify-content: center; }
.nav__inner {
  width: 100%; max-width: var(--container);
  display: flex; align-items: center; gap: 1.5rem;
  padding: 0.55rem 0.7rem 0.55rem 1.1rem;
  border-radius: 999px;
  background: rgba(251, 247, 240, 0.72);
  border: 1px solid var(--line-soft);
  box-shadow: 0 1px 0 rgba(255,255,255,0.6) inset, var(--shadow-sm);
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  transition: box-shadow 0.5s var(--ease), background 0.5s var(--ease), transform 0.5s var(--ease);
}
.nav.is-scrolled .nav__inner { background: rgba(251, 247, 240, 0.9); box-shadow: 0 1px 0 rgba(255,255,255,0.6) inset, var(--shadow-md); }
.nav__links { display: flex; gap: 0.3rem; margin-left: auto; }
.nav__links a { position: relative; padding: 0.5rem 0.85rem; font-size: 0.92rem; font-weight: 500; color: var(--ink-soft); border-radius: 999px; transition: color 0.3s var(--ease), background 0.3s var(--ease); }
.nav__links a:hover { color: var(--ink); background: rgba(33,29,24,0.05); }
.nav__cta { flex: none; }

.nav__burger { display: none; width: 44px; height: 44px; border-radius: 50%; background: var(--ink); position: relative; flex: none; z-index: 51; }
.nav__burger span { position: absolute; left: 13px; width: 18px; height: 1.6px; background: var(--paper); border-radius: 2px; transition: transform 0.4s var(--ease-spring), opacity 0.3s var(--ease); }
.nav__burger span:nth-child(1) { top: 19px; }
.nav__burger span:nth-child(2) { top: 25px; }
.nav__burger.is-open span:nth-child(1) { transform: translateY(3px) rotate(45deg); }
.nav__burger.is-open span:nth-child(2) { transform: translateY(-3px) rotate(-45deg); }

/* ----------------------------- Mobile menu ----------------------------- */
.mobile-menu {
  position: fixed; inset: 0; z-index: 49;
  background: rgba(33, 29, 24, 0.55);
  backdrop-filter: blur(26px) saturate(1.2); -webkit-backdrop-filter: blur(26px) saturate(1.2);
  display: flex; flex-direction: column; justify-content: center; gap: 2.5rem;
  padding: 6rem var(--gutter) 3rem;
  opacity: 0; visibility: hidden; transform: translateY(-12px);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease), visibility 0.5s;
}
.mobile-menu.is-open { opacity: 1; visibility: visible; transform: none; }
.mobile-menu__links { display: flex; flex-direction: column; gap: 0.2rem; }
.mobile-menu__links a {
  font-family: var(--font-display); font-size: clamp(2rem, 8vw, 3rem); color: var(--paper);
  font-weight: 400; letter-spacing: -0.02em; padding: 0.4rem 0;
  opacity: 0; transform: translateY(24px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.mobile-menu.is-open .mobile-menu__links a { opacity: 1; transform: none; transition-delay: calc(var(--i) * 60ms + 120ms); }
.mobile-menu__foot { display: flex; flex-direction: column; gap: 0.4rem; color: rgba(243,239,230,0.72); font-size: 0.95rem; }
.mobile-menu__foot a:hover { color: var(--paper); }

/* ----------------------------- Buttons ----------------------------- */
.btn {
  --bg: var(--ink); --fg: var(--paper);
  display: inline-flex; align-items: center; gap: 0.7rem;
  padding: 0.85rem 0.95rem 0.85rem 1.4rem;
  border-radius: 999px; font-size: 0.95rem; font-weight: 600; letter-spacing: -0.01em;
  background: var(--bg); color: var(--fg);
  transition: transform 0.4s var(--ease-spring), box-shadow 0.4s var(--ease), background 0.4s var(--ease), color 0.4s var(--ease);
  will-change: transform;
}
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn:active { transform: translateY(0) scale(0.98); }
.btn__icon { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; background: rgba(255,255,255,0.14); transition: transform 0.4s var(--ease-spring), background 0.4s var(--ease); }
.btn:hover .btn__icon { transform: translate(2px, -1px); background: rgba(255,255,255,0.22); }
.btn--solid { --bg: var(--ink); --fg: var(--paper); }
.btn--pill { --bg: var(--ink); --fg: var(--paper); padding: 0.6rem 0.65rem 0.6rem 1.2rem; font-size: 0.9rem; }
.btn--pill .btn__icon { width: 28px; height: 28px; }
.btn--ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); padding: 0.85rem 1.4rem; }
.btn--ghost:hover { background: rgba(33,29,24,0.04); box-shadow: none; transform: translateY(-2px); border-color: rgba(33,29,24,0.22); }
.btn--block { width: 100%; justify-content: center; margin-top: 0.4rem; }
.btn[aria-busy="true"] { pointer-events: none; opacity: 0.75; }

.link-arrow { display: inline-flex; align-items: center; gap: 0.5rem; font-weight: 600; font-size: 0.95rem; color: var(--blue); transition: gap 0.3s var(--ease), color 0.3s var(--ease); }
.link-arrow svg { transition: transform 0.3s var(--ease); }
.link-arrow:hover { color: var(--blue-bright); gap: 0.75rem; }
.link-arrow:hover svg { transform: translateX(2px); }

/* ----------------------------- Eyebrow / heads ----------------------------- */
.eyebrow { display: inline-flex; align-items: center; gap: 0.6rem; margin-right: -0.2em; font-size: var(--fs-eyebrow); text-transform: uppercase; letter-spacing: 0.2em; font-weight: 600; color: var(--ink-soft); }
.eyebrow__dot { width: 7px; height: 7px; border-radius: 50%; background: var(--blue-bright); flex: none; box-shadow: 0 0 0 4px rgba(46,111,168,0.14); }
.eyebrow--light { color: rgba(243,239,230,0.88); }

.section { padding-block: var(--pad-section); }
section[id], [id].footer, #plantas { scroll-margin-top: 96px; }
.section__head { max-width: 720px; margin: 0 auto clamp(2.5rem, 4vw, 4rem); text-align: center; display: flex; flex-direction: column; gap: 1.1rem; align-items: center; }
.section__head--left { text-align: left; align-items: flex-start; margin-inline: 0; }
.section__title { font-size: var(--fs-h2); }
.section__title em { color: var(--blue); }
.section__title--light { color: var(--paper); }
.section__title--light em { color: var(--blue-pale); }
.section__lead { font-size: var(--fs-lead); color: var(--ink-soft); line-height: 1.6; }
.prose { color: var(--ink-soft); max-width: 56ch; }
.prose + .prose { margin-top: 1.1rem; }

/* ----------------------------- Bezel (double enclosure) ----------------------------- */
.bezel { background: var(--sand); border: 1px solid var(--line-soft); border-radius: var(--r-lg); padding: var(--bezel-pad); box-shadow: var(--shadow-md), 0 0 0 1px rgba(255,255,255,0.4); }
.bezel__inner { background: var(--card); border-radius: calc(var(--r-lg) - var(--bezel-pad)); overflow: hidden; box-shadow: inset 0 1px 1px rgba(255,255,255,0.7); height: 100%; }

/* ----------------------------- Hero ----------------------------- */
.hero { position: relative; min-height: 100dvh; display: flex; flex-direction: column; justify-content: flex-end; padding-top: 8rem; padding-bottom: clamp(1.5rem, 3vw, 3rem); overflow: hidden; }
.hero__media { position: absolute; inset: 0; z-index: -1; }
.hero__media img { width: 100%; height: 100%; object-fit: cover; object-position: center; transform: scale(1.05); }
.hero__scrim { position: absolute; inset: 0; background:
  linear-gradient(90deg, rgba(33,29,24,0.64) 0%, rgba(33,29,24,0.32) 40%, rgba(33,29,24,0) 68%),
  linear-gradient(0deg, rgba(33,29,24,0.58) 0%, rgba(33,29,24,0) 45%); }
.hero__grid { position: relative; padding-block: clamp(2rem, 5vw, 4rem); }
.hero__copy { max-width: 760px; color: var(--paper); }
.hero .eyebrow { color: rgba(243,239,230,0.9); }
.hero__title { font-size: var(--fs-h1); color: var(--paper); margin-top: 1.4rem; font-weight: 400; line-height: 0.98; }
.hero__title-em { display: block; font-style: italic; color: var(--blue-pale); font-weight: 500; }
.hero__lead { font-size: var(--fs-lead); color: rgba(243,239,230,0.9); max-width: 48ch; margin-top: 1.6rem; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 0.9rem; margin-top: 2.2rem; }
.hero__actions .btn--solid { --bg: var(--paper); --fg: var(--ink); }
.hero__actions .btn--solid .btn__icon { background: rgba(33,29,24,0.10); }
.hero__actions .btn--solid:hover .btn__icon { background: rgba(33,29,24,0.16); }
.hero__actions .btn--ghost { color: var(--paper); border-color: rgba(243,239,230,0.4); }
.hero__actions .btn--ghost:hover { background: rgba(243,239,230,0.1); border-color: rgba(243,239,230,0.7); }

.hero__stats { position: relative; margin-top: clamp(2.5rem, 5vw, 4rem); }
/* solid espresso plate — editorial, deterministic contrast (no glassmorphism) */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: rgba(243,239,230,0.14); border: 1px solid rgba(33,29,24,0.5); border-radius: var(--r-md); overflow: hidden; box-shadow: var(--shadow-md); }
.stats__item { background: var(--ink); padding: 1.3rem 1.4rem; display: flex; flex-direction: column; gap: 0.5rem; }
.stats__item dt { order: 2; font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.14em; color: rgba(243,239,230,0.78); font-weight: 600; }
.stats__item dd { order: 1; display: flex; align-items: baseline; gap: 0.5rem; flex-wrap: wrap; }
.stats__item .num { font-family: var(--font-display); font-size: clamp(2rem, 1.4rem + 1.6vw, 2.9rem); font-weight: 500; color: var(--paper); line-height: 1; }
.stats__item .suf { font-size: 0.8rem; color: var(--blue-pale); font-weight: 500; flex-basis: 100%; }

/* ----------------------------- Promociones ----------------------------- */
.section--promos { background: var(--paper); }
.promos { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(1.2rem, 2vw, 1.8rem); }
.promo .bezel__inner { display: flex; flex-direction: column; }
.promo__media { position: relative; aspect-ratio: 4 / 3; overflow: hidden; }
.promo__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.9s var(--ease); }
.promo:hover .promo__media img { transform: scale(1.05); }
.promo--sold .promo__media img { filter: grayscale(0.25) brightness(0.96); }
.badge { position: absolute; top: 1rem; left: 1rem; font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.14em; font-weight: 700; padding: 0.42rem 0.8rem; border-radius: 999px; backdrop-filter: blur(6px); }
.badge--live { background: rgba(31,75,115,0.92); color: var(--on-blue); }
.badge--sold { background: rgba(33,29,24,0.82); color: rgba(243,239,230,0.92); }
.promo__body { padding: 1.5rem 1.5rem 1.7rem; display: flex; flex-direction: column; gap: 0.8rem; flex: 1; }
.promo__meta { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); font-weight: 600; }
.promo__sep { color: var(--sand-2); }
.promo__name { font-size: var(--fs-h3); }
.promo__desc { color: var(--ink-soft); font-size: 0.97rem; }
.chips { display: flex; flex-wrap: wrap; gap: 0.45rem; margin-top: auto; }
.chips li { font-size: 0.74rem; font-weight: 600; color: var(--ink-soft); padding: 0.32rem 0.7rem; border: 1px solid var(--line); border-radius: 999px; }
.promo__body .link-arrow { margin-top: 0.4rem; }

/* Plantas rail */
.plantas { margin-top: clamp(3rem, 5vw, 5rem); }
.plantas__head { display: flex; flex-direction: column; gap: 0.4rem; margin-bottom: 1.5rem; }
.plantas__head h3 { font-size: var(--fs-h4); }
.plantas__head p { color: var(--muted); font-size: 0.92rem; }
.plantas__rail { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(230px, 1fr); gap: 1rem; overflow-x: auto; padding-bottom: 1rem; scroll-snap-type: x mandatory; scrollbar-width: thin; scrollbar-color: var(--sand-2) transparent; }
.planta { scroll-snap-align: start; position: relative; border-radius: var(--r-md); overflow: hidden; border: 1px solid var(--line-soft); background: var(--card); box-shadow: var(--shadow-sm); transition: transform 0.5s var(--ease), box-shadow 0.5s var(--ease); text-align: left; }
.planta img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.planta span { position: absolute; bottom: 0; left: 0; right: 0; padding: 1.5rem 0.9rem 0.7rem; font-size: 0.82rem; font-weight: 600; color: var(--paper); background: linear-gradient(0deg, rgba(33,29,24,0.78), transparent); }
.planta:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }

/* ----------------------------- Estudio ----------------------------- */
.section--studio { background: var(--paper); }
.studio { display: grid; grid-template-columns: 0.92fr 1.08fr; gap: clamp(2rem, 5vw, 5rem); align-items: center; }
.studio__media { position: relative; }
.studio__media .bezel__inner img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; }
.studio__plate { position: absolute; right: clamp(0.5rem, 1vw, 1rem); bottom: clamp(1rem, 3vw, 2.2rem); max-width: 220px; background: var(--ink); color: var(--paper); padding: 1.2rem 1.3rem; border-radius: var(--r-md); box-shadow: var(--shadow-lg); display: flex; flex-direction: column; gap: 0.4rem; }
.studio__plate .num { font-family: var(--font-display); font-size: 2rem; font-weight: 500; color: var(--blue-pale); line-height: 1; }
.studio__plate span:last-child { font-size: 0.8rem; color: rgba(243,239,230,0.8); line-height: 1.4; }
.studio__copy { display: flex; flex-direction: column; gap: 1.1rem; align-items: flex-start; }
.studio__copy .section__title { margin-top: 0.3rem; }
.values { display: grid; grid-template-columns: 1fr 1fr; gap: 0; margin-top: 1.4rem; width: 100%; border-top: 1px solid var(--line); }
.value { padding: 1.3rem 1.3rem 1.3rem 0; border-bottom: 1px solid var(--line); }
.value:nth-child(odd) { padding-right: 1.6rem; border-right: 1px solid var(--line); }
.value:nth-child(even) { padding-left: 1.6rem; }
.value h4 { font-size: var(--fs-item); font-weight: 600; margin-bottom: 0.4rem; font-family: var(--font-sans); letter-spacing: 0; }
.value p { font-size: 0.9rem; color: var(--ink-soft); }

/* ----------------------------- Servicios / Solar ----------------------------- */
.section--solar { background: var(--paper); }
.solar { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 5rem); align-items: center; margin-bottom: clamp(3.5rem, 6vw, 6rem); }
.solar__copy { display: flex; flex-direction: column; gap: 1.1rem; align-items: flex-start; }
.solar__media .bezel__inner img { width: 100%; aspect-ratio: 5 / 4; object-fit: cover; }

.services__title { font-size: var(--fs-h4); }
.services { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border-top: 1px solid var(--line); margin-top: 2.5rem; }
.service { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 1rem; padding: 1.15rem 0.4rem; border-bottom: 1px solid var(--line); transition: background 0.4s var(--ease); position: relative; }
.service:nth-child(odd) { border-right: 1px solid var(--line); padding-right: 1.6rem; }
.service:nth-child(even) { padding-left: 1.6rem; }
.service__no { font-family: var(--font-display); font-size: 0.95rem; color: var(--blue); font-weight: 500; }
.service__name { font-weight: 500; font-size: var(--fs-item); }
.service__cat { font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--muted); font-weight: 600; }
.service:hover { background: var(--sand); }

.pillars { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.2rem, 2vw, 2rem); margin-top: clamp(2.5rem, 4vw, 4rem); }
.pillar { background: var(--ink); color: var(--paper); padding: clamp(1.8rem, 3vw, 2.6rem); border-radius: var(--r-lg); box-shadow: var(--shadow-md), inset 0 1px 0 rgba(255,255,255,0.08); position: relative; overflow: hidden; }
.pillar:nth-child(2) { background: var(--blue-deep); }
.pillar h4 { font-family: var(--font-display); font-size: clamp(1.5rem, 2.5vw, 2.1rem); font-weight: 500; color: var(--paper); margin-bottom: 0.7rem; letter-spacing: -0.01em; }
.pillar p { color: rgba(243,239,230,0.84); font-size: 0.97rem; }

/* ----------------------------- Proyectos realizados ----------------------------- */
.section--projects { background: var(--paper); }
.filters { display: flex; flex-wrap: wrap; gap: 0.5rem; justify-content: center; margin-bottom: 2.5rem; }
.filter { padding: 0.55rem 1.1rem; border-radius: 999px; font-size: 0.88rem; font-weight: 600; color: var(--ink-soft); border: 1px solid var(--line); transition: background 0.35s var(--ease), color 0.35s var(--ease), border-color 0.35s var(--ease); }
.filter:hover { border-color: rgba(33,29,24,0.25); }
.filter.is-active { background: var(--ink); color: var(--paper); border-color: var(--ink); }

.projects { border-top: 1px solid var(--line); }
.project { display: grid; grid-template-columns: 96px 1fr auto auto; align-items: center; gap: clamp(0.8rem, 2vw, 2rem); padding: 1.4rem 0.5rem; border-bottom: 1px solid var(--line); transition: background 0.4s var(--ease), opacity 0.4s var(--ease); }
.project:hover { background: var(--sand); }
.project[hidden] { display: none; }
.project__count { font-family: var(--font-display); font-size: clamp(1.8rem, 3vw, 2.6rem); font-weight: 500; color: var(--ink); line-height: 1; }
.project__body { display: flex; flex-direction: column; gap: 0.25rem; }
.project__type { font-weight: 500; font-size: var(--fs-item); }
.project__loc { font-size: 0.86rem; color: var(--muted); }
.project__tag { font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.1em; font-weight: 700; color: var(--blue); padding: 0.34rem 0.75rem; border: 1px solid rgba(31,75,115,0.25); border-radius: 999px; white-space: nowrap; }
.project__year { font-family: var(--font-display); font-size: 1.05rem; color: var(--ink-soft); font-weight: 500; min-width: 3ch; text-align: right; }

/* ----------------------------- Mercados ----------------------------- */
.section--markets { padding: 0; }
.markets { position: relative; min-height: 70vh; display: flex; align-items: center; overflow: hidden; padding-block: clamp(4rem, 8vw, 7rem); }
.markets__media { position: absolute; inset: 0; z-index: -1; }
.markets__media img { width: 100%; height: 100%; object-fit: cover; }
.markets__scrim { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(22,30,40,0.86) 0%, rgba(22,30,40,0.5) 55%, rgba(22,30,40,0.24) 100%); }
.markets__inner { color: var(--paper); max-width: 760px; }
.markets__quote { font-family: var(--font-display); font-weight: 400; font-size: clamp(1.9rem, 1.2rem + 3vw, 3.6rem); line-height: 1.08; letter-spacing: -0.015em; margin-top: 1.4rem; color: var(--paper); }
.markets__quote em { color: var(--blue-pale); }
.markets__copy { font-size: var(--fs-lead); color: rgba(243,239,230,0.88); margin-top: 1.6rem; max-width: 54ch; }
.region-tags { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 2rem; }
.region-tags li { font-size: 0.82rem; font-weight: 600; color: var(--paper); padding: 0.5rem 1rem; border: 1px solid rgba(243,239,230,0.36); border-radius: 999px; backdrop-filter: blur(4px); }

/* ----------------------------- Contacto ----------------------------- */
.section--contact { padding: 0; }
.contact { position: relative; padding-block: var(--pad-section); background-image: linear-gradient(rgba(20,26,34,0.9), rgba(20,26,34,0.94)), var(--cta-bg); background-size: cover; background-position: center; background-attachment: fixed; }
.contact__grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 5rem); align-items: center; }
.contact__intro { color: var(--paper); display: flex; flex-direction: column; gap: 1.2rem; align-items: flex-start; }
.contact__lead { font-size: var(--fs-lead); color: rgba(243,239,230,0.88); max-width: 44ch; }
.contact__details { display: flex; flex-direction: column; gap: 1.1rem; margin-top: 0.5rem; width: 100%; }
.contact__details li { display: flex; flex-direction: column; gap: 0.15rem; padding-top: 1.1rem; border-top: 1px solid rgba(243,239,230,0.18); }
.contact__k { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.16em; color: rgba(243,239,230,0.66); font-weight: 600; }
.contact__details a, .contact__details span:not(.contact__k) { color: var(--paper); font-size: 1.05rem; }
.contact__details a:hover { color: var(--blue-pale); }

.contact__formInner { padding: clamp(1.5rem, 3vw, 2.2rem); display: flex; flex-direction: column; gap: 1rem; }
.field { display: flex; flex-direction: column; gap: 0.4rem; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.field label { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.1em; font-weight: 600; color: var(--ink-soft); }
.field input, .field textarea { width: 100%; padding: 0.85rem 1rem; border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--paper-2); font: inherit; font-size: 0.97rem; color: var(--ink); transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease), background 0.3s var(--ease); }
.field textarea { resize: vertical; min-height: 110px; }
.field input::placeholder, .field textarea::placeholder { color: #857c69; }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--blue); background: #fff; box-shadow: 0 0 0 4px rgba(31,75,115,0.1); }
.field.has-error input, .field.has-error textarea, [aria-invalid="true"] { border-color: var(--danger); box-shadow: 0 0 0 4px rgba(180,69,47,0.1); }
.field__err { font-size: 0.78rem; color: var(--danger); min-height: 0; opacity: 0; transition: opacity 0.3s var(--ease); }
.field.has-error .field__err { opacity: 1; }
.field__err--block { display: block; margin-top: -0.4rem; }
.field__err--block:empty { display: none; }
.checkbox { display: flex; gap: 0.65rem; align-items: flex-start; font-size: 0.85rem; color: var(--ink-soft); cursor: pointer; }
.checkbox input { margin-top: 0.2rem; width: 16px; height: 16px; accent-color: var(--blue); flex: none; }
.checkbox a { color: var(--blue); text-decoration: underline; text-underline-offset: 2px; }
.form-note { font-size: 0.88rem; min-height: 1.2em; }
.form-note.is-ok { color: #2f6e4a; }
.form-note.is-err { color: var(--danger); }

/* ----------------------------- Footer ----------------------------- */
.footer { background: var(--ink); color: rgba(243,239,230,0.78); padding-top: clamp(3.5rem, 6vw, 5.5rem); position: relative; }
.footer .brand__name, .footer .brand__cn { color: var(--paper); }
.footer .brand__cn { color: var(--blue-pale); }
.footer .brand__mark { background: rgba(243,239,230,0.08); }
.footer__grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.4fr; gap: clamp(1.6rem, 3vw, 3rem); padding-bottom: clamp(2.5rem, 4vw, 4rem); }
.footer__tag { margin-top: 1.2rem; max-width: 38ch; font-size: 0.92rem; color: rgba(243,239,230,0.66); }
.footer h5 { font-family: var(--font-sans); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.16em; color: rgba(243,239,230,0.62); font-weight: 700; margin-bottom: 1.1rem; }
.footer__nav, .footer__contact { display: flex; flex-direction: column; gap: 0.6rem; font-size: 0.95rem; }
.footer__nav a:hover, .footer__contact a:hover { color: var(--paper); }
.footer__legal p { font-size: 0.84rem; color: rgba(243,239,230,0.6); line-height: 1.6; }
.footer__roofline { color: rgba(243,239,230,0.18); }
.footer__bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.6rem; padding-block: 1.6rem; border-top: 1px solid rgba(243,239,230,0.12); font-size: 0.82rem; color: rgba(243,239,230,0.62); }

/* ----------------------------- Lightbox ----------------------------- */
.lightbox { position: fixed; inset: 0; z-index: 80; background: rgba(20,18,15,0.92); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); display: grid; place-items: center; padding: clamp(1rem, 4vw, 3rem); opacity: 0; visibility: hidden; transition: opacity 0.4s var(--ease), visibility 0.4s; }
.lightbox.is-open { opacity: 1; visibility: visible; }
.lightbox__fig { max-width: min(1000px, 92vw); transform: scale(0.96); transition: transform 0.4s var(--ease-spring); }
.lightbox.is-open .lightbox__fig { transform: scale(1); }
.lightbox__fig img { width: 100%; max-height: 82vh; object-fit: contain; border-radius: var(--r-md); box-shadow: var(--shadow-lg); }
.lightbox__fig figcaption { text-align: center; color: rgba(243,239,230,0.8); font-size: 0.9rem; margin-top: 1rem; letter-spacing: 0.04em; }
.lightbox__close { position: absolute; top: clamp(1rem, 3vw, 2rem); right: clamp(1rem, 3vw, 2rem); width: 48px; height: 48px; border-radius: 50%; background: rgba(243,239,230,0.12); color: var(--paper); display: grid; place-items: center; transition: background 0.3s var(--ease), transform 0.3s var(--ease-spring); }
.lightbox__close:hover { background: rgba(243,239,230,0.22); transform: rotate(90deg); }

/* ----------------------------- Reveal ----------------------------- */
[data-reveal] { opacity: 0; transform: translateY(18px); transition: opacity 0.6s var(--ease), transform 0.6s var(--ease); transition-delay: var(--rd, 0ms); }
[data-reveal].is-visible { opacity: 1; transform: none; }

/* roofline draw */
.roofline-path { stroke-dasharray: var(--len, 4000); stroke-dashoffset: var(--len, 4000); transition: stroke-dashoffset 2.4s var(--ease); }
.roofline-path.is-drawn { stroke-dashoffset: 0; }

/* ----------------------------- Responsive ----------------------------- */
@media (max-width: 1024px) {
  .stats { grid-template-columns: 1fr 1fr; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 880px) {
  .nav__links { display: none; }
  .nav__cta { display: none; }
  .nav__burger { display: block; }
  .promos { grid-template-columns: 1fr; max-width: 460px; margin-inline: auto; }
  .studio { grid-template-columns: 1fr; }
  .studio__media { max-width: 480px; }
  .studio__plate { right: 1rem; }
  .solar { grid-template-columns: 1fr; }
  .solar__copy { order: 2; }
  .pillars { grid-template-columns: 1fr; }
  .contact__grid { grid-template-columns: 1fr; }
  .contact { background-attachment: scroll; }
}
@media (max-width: 620px) {
  .stats { grid-template-columns: 1fr; }
  .values { grid-template-columns: 1fr; }
  .value:nth-child(odd) { border-right: none; padding-right: 0; }
  .value:nth-child(even) { padding-left: 0; }
  .services { grid-template-columns: 1fr; }
  .service:nth-child(odd) { border-right: none; padding-right: 0.4rem; }
  .service:nth-child(even) { padding-left: 0.4rem; }
  .field-row { grid-template-columns: 1fr; }
  .project { grid-template-columns: 64px 1fr; row-gap: 0.5rem; }
  .project__tag { grid-column: 2; justify-self: start; }
  .project__year { grid-row: 1; grid-column: 2; justify-self: end; }
  .footer__grid { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-delay: 0ms !important; transition-duration: 0.001ms !important; transition-delay: 0ms !important; }
  [data-reveal] { opacity: 1; transform: none; }
  .hero__media img { transform: none; }
  .roofline-path { stroke-dashoffset: 0; }
}