/* =============================================================
   GERO A GERO REFORMAS — styles.css
   Archetype: 07 Brutalist Grid, adaptado a arquitectura premium
   ============================================================= */

/* =============================================================
   1. Tokens
   ============================================================= */
:root {
  /* Palette — papel roto, tinta, arcilla */
  --bg:          #f3f0ea;
  --bg-2:        #e9e3d6;
  --paper:       #ffffff;
  --ink:         #16150f;
  --ink-soft:    #302e27;
  --ink-mute:    #706b5c;
  --accent:      #a8471f;
  --accent-2:    #7c8265;
  --line:        rgba(22, 21, 15, 0.16);
  --line-strong: rgba(22, 21, 15, 0.62);

  /* Dark section (Proceso) */
  --bg-dark:        #1a1912;
  --bg-dark-2:      #232117;
  --cream:          #f1ece0;
  --cream-mute:     rgba(241, 236, 224, 0.64);
  --line-dark:      rgba(241, 236, 224, 0.18);
  --accent-on-dark: #d97a4a;

  /* Type */
  --display: "Space Grotesk", "Segoe UI", sans-serif;
  --sans:    "Inter", "Segoe UI", sans-serif;
  --mono:    "JetBrains Mono", "Consolas", monospace;

  /* Easings */
  --ease-out:    cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in:     cubic-bezier(0.7, 0, 0.84, 0);
  --ease-soft:   cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Layout — fluid container system (not a fixed narrow max-width) */
  --nav-h: 88px;
  --gutter: 1px;
  --container: min(95vw, 1800px);
  --container-form: min(78vw, 1220px);
  --edge: clamp(1.25rem, 4vw, 4rem);
}

/* =============================================================
   2. Reset & base
   ============================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html {
  -webkit-text-size-adjust: 100%;
  tab-size: 2;
  overflow-x: clip;
  scroll-behavior: smooth;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}
/* Root scale — grows every rem-based value site-wide across the exact
   reference breakpoints, so typography keeps gaining presence between
   1024 / 1440 / 1920 instead of plateauing. Not transform:scale(). */
html { font-size: 16px; }
@media (min-width: 1024px) { html { font-size: 17px; } }
@media (min-width: 1440px) { html { font-size: 18px; } }
@media (min-width: 1920px) { html { font-size: 19.5px; } }

body {
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
  overscroll-behavior-y: none;
}
img, svg, video { display: block; max-width: 100%; }
img { height: auto; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
a { color: inherit; text-decoration: none; }
p { text-wrap: pretty; }
ul, ol { list-style: none; padding: 0; }
h1, h2, h3, h4 {
  font-family: var(--display);
  text-wrap: balance;
  line-height: 1.02;
  letter-spacing: -0.01em;
  font-weight: 600;
}
input, select, textarea { font: inherit; color: inherit; }
::selection { background: var(--accent); color: var(--cream); }

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

/* =============================================================
   3. Utilities
   ============================================================= */
.skip-link {
  position: fixed; top: -100px; left: 1rem; z-index: 9999;
  padding: 0.7rem 1.1rem; background: var(--ink); color: var(--cream);
  font-family: var(--mono); font-size: 0.8rem;
  transition: top 0.3s var(--ease-out);
}
.skip-link:focus { top: 1rem; }

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

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

.kicker {
  display: inline-flex; align-items: center; gap: 0.6em;
  font-family: var(--mono); font-size: 0.85rem;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--accent);
}
.kicker::before {
  content: ""; width: 22px; height: 1px; background: var(--accent);
}
.kicker.on-dark { color: var(--accent-on-dark); }

.eyebrow-num {
  font-family: var(--mono); font-size: 0.82rem;
  color: var(--ink-mute); letter-spacing: 0.08em;
}

[data-reveal] {
  opacity: 0; transform: translateY(36px);
  transition: opacity 0.85s var(--ease-soft), transform 0.85s var(--ease-soft);
}
[data-reveal].is-revealed { opacity: 1; transform: none; }
/* Defensive: elements combining reveal + split-text must never get stuck invisible (gotcha A.4.5) */
[data-reveal][data-split] { opacity: 1; transform: none; }
.split-word { display: inline-block; }

.hairline { height: 1px; background: var(--line); border: 0; }
.hairline.on-dark { background: var(--line-dark); }

/* =============================================================
   4. Typography
   ============================================================= */
.h-display {
  font-size: clamp(2.6rem, 5.6vw, 5.4rem);
  line-height: 0.98;
}
.h-xl { font-size: clamp(2.1rem, 4vw, 3.6rem); }
.h-lg { font-size: clamp(1.6rem, 2.6vw, 2.4rem); }
.h-md { font-size: clamp(1.25rem, 1.6vw, 1.6rem); }

.lede {
  font-size: clamp(1.05rem, 1.4vw, 1.25rem);
  color: var(--ink-soft);
  max-width: 46ch;
  line-height: 1.55;
}

.section-head {
  display: grid;
  gap: 1.1rem;
  max-width: 62ch;
  margin-bottom: clamp(2.25rem, 4.2vw, 3.5rem);
}

/* =============================================================
   5. Components
   ============================================================= */

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 0.65rem;
  padding: 1.05rem 1.9rem;
  font-family: var(--mono); font-size: 0.9rem;
  letter-spacing: 0.04em; text-transform: uppercase;
  border: 1px solid var(--ink);
  transition: transform 0.5s var(--ease-soft), background-color 0.35s var(--ease-out), color 0.35s var(--ease-out), border-color 0.35s var(--ease-out);
  white-space: nowrap;
}
.btn-primary { background: var(--ink); color: var(--cream); }
.btn-primary:hover { background: var(--accent); border-color: var(--accent); transform: translateY(-3px); }
.btn-ghost { background: transparent; color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--cream); transform: translateY(-3px); }
.btn-ghost.on-dark { color: var(--cream); border-color: var(--cream); }
.btn-ghost.on-dark:hover { background: var(--cream); color: var(--ink); }
.btn-arrow { transition: transform 0.4s var(--ease-soft); }
.btn:hover .btn-arrow { transform: translateX(4px); }
.btn:active { transition-duration: 0.12s; transform: translateY(-1px); }

/* Nav */
.nav {
  position: fixed; inset-inline: 0; top: 0; z-index: 100;
  height: var(--nav-h);
  display: flex; align-items: center;
  border-bottom: 1px solid transparent;
  transition: background-color 0.4s var(--ease-out), border-color 0.4s var(--ease-out), backdrop-filter 0.4s var(--ease-out);
}
.nav.is-scrolled {
  background: rgba(243, 240, 234, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom-color: var(--line);
}
.nav-inner {
  width: 100%;
  display: flex; align-items: center; justify-content: space-between;
  gap: 1.5rem;
}
.nav-logo {
  font-family: var(--display); font-weight: 700; font-size: 1.75rem;
  letter-spacing: -0.01em;
  display: flex; flex-direction: column; line-height: 1.08;
}
.nav-logo span { font-family: var(--mono); font-weight: 400; font-size: 0.85rem; letter-spacing: 0.1em; color: var(--ink-mute); text-transform: uppercase; }
.nav-links { display: none; align-items: center; gap: 2.6rem; }
.nav-link {
  position: relative; padding: 0.3rem 0;
  font-family: var(--mono); font-size: 1.2rem; letter-spacing: 0.02em;
}
.nav-link::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -2px;
  height: 1px; background: var(--ink);
  transform: scaleX(0); transform-origin: right;
  transition: transform 0.45s var(--ease-out);
}
.nav-link:hover::after { transform: scaleX(1); transform-origin: left; }
.nav-cta { display: none; padding: 1.05rem 2rem; font-size: 1.1rem; }
.nav-burger {
  display: grid; place-items: center; width: 44px; height: 44px;
  border: 1px solid var(--ink);
}
.nav-burger span { display: block; width: 18px; height: 1px; background: var(--ink); position: relative; }
.nav-burger span::before, .nav-burger span::after {
  content: ""; position: absolute; left: 0; width: 100%; height: 1px; background: var(--ink);
  transition: transform 0.3s var(--ease-out);
}
.nav-burger span::before { top: -6px; }
.nav-burger span::after { top: 6px; }
.nav-burger[aria-expanded="true"] span { background: transparent; }
.nav-burger[aria-expanded="true"] span::before { transform: translateY(6px) rotate(45deg); }
.nav-burger[aria-expanded="true"] span::after { transform: translateY(-6px) rotate(-45deg); }

.nav-mobile {
  position: fixed; inset: 0; z-index: 95;
  background: var(--ink); color: var(--cream);
  display: flex; flex-direction: column; justify-content: center;
  padding: var(--edge);
  clip-path: inset(0 0 100% 0);
  transition: clip-path 0.65s var(--ease-soft);
}
.nav-mobile[data-open="true"] { clip-path: inset(0); }
.nav-mobile-list { display: grid; gap: 0.4rem; margin-bottom: 2.5rem; }
.nav-mobile-list a {
  font-family: var(--display); font-size: clamp(2rem, 9vw, 2.8rem);
  font-weight: 600; padding: 0.3rem 0;
}
.nav-mobile-meta { font-family: var(--mono); font-size: 0.78rem; color: var(--cream-mute); display: grid; gap: 0.4rem; }
.nav-mobile-close {
  position: absolute; top: 1.6rem; right: var(--edge);
  width: 44px; height: 44px; display: grid; place-items: center;
  border: 1px solid var(--line-dark); color: var(--cream);
}

/* Cards generic */
.card { position: relative; }
.has-tilt {
  --rx: 0deg; --ry: 0deg;
  transform: perspective(1100px) rotateX(var(--rx)) rotateY(var(--ry));
  transform-style: preserve-3d;
  transition: transform 0.55s var(--ease-soft);
}
.has-tilt:hover { transition-duration: 0.15s; }

/* Tags */
.tag {
  display: inline-flex; align-items: center;
  font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 0.3rem 0.6rem; border: 1px solid currentColor;
}
.tag-placeholder { color: var(--ink-mute); border-style: dashed; }

/* =============================================================
   6. Sections — shared
   ============================================================= */
.section { position: relative; padding-block: clamp(3.4rem, 6vw, 5.75rem); }
.section-dark { background: var(--bg-dark); color: var(--cream); }
.section-dark .ink-mute { color: var(--cream-mute); }

.grid-cols {
  display: grid; gap: var(--gutter);
  background: var(--line);
}
.grid-cols > * { background: var(--bg); }

/* =============================================================
   7. Hero
   ============================================================= */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex; flex-direction: column; justify-content: flex-end;
  overflow: clip;
  color: var(--cream);
}
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-bg img {
  width: 100%; height: 100%; object-fit: cover;
  object-position: 62% 42%;
  transform: scale(1.06);
}
@media (min-width: 720px) {
  .hero-bg img { object-position: 58% 40%; }
}
@media (min-width: 1280px) {
  .hero-bg img { object-position: 50% 38%; }
}
.hero-bg::after {
  content: "";
  position: absolute; inset: 0;
  background:
    linear-gradient(90deg,
      rgba(16,14,9,0.88) 0%,
      rgba(16,14,9,0.68) 20%,
      rgba(16,14,9,0.32) 46%,
      rgba(16,14,9,0.12) 68%,
      rgba(16,14,9,0.10) 100%),
    linear-gradient(180deg,
      rgba(16,14,9,0.14) 0%,
      rgba(16,14,9,0.02) 26%,
      rgba(16,14,9,0.18) 66%,
      rgba(16,14,9,0.66) 100%),
    radial-gradient(80% 65% at 6% 100%, rgba(16,14,9,0.55) 0%, transparent 60%);
}

.hero-content {
  position: relative; z-index: 2;
  padding: var(--edge);
  padding-top: calc(var(--nav-h) + 2rem);
  display: grid; gap: 1.6rem;
}
.hero-kicker {
  font-family: var(--mono); font-size: 0.95rem; letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--accent-on-dark);
  display: flex; align-items: center; gap: 0.6em;
}
.hero-kicker::before { content: ""; width: 22px; height: 1px; background: var(--accent-on-dark); }
.hero-title {
  font-size: clamp(2.6rem, 8vw, 6.4rem);
  line-height: 0.96;
  max-width: 15ch;
  text-wrap: balance;
}
.hero-sub {
  font-family: var(--mono); font-size: clamp(1.1rem, 1.3vw, 1.25rem);
  color: var(--cream-mute); max-width: 44ch; letter-spacing: 0.01em;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 0.5rem; }
.hero-actions .btn-primary { border-color: var(--cream); background: var(--cream); color: var(--ink); }
.hero-actions .btn-primary:hover { background: var(--accent-on-dark); border-color: var(--accent-on-dark); color: var(--ink); }
.hero-actions .btn-ghost { border-color: rgba(241,236,224,0.5); color: var(--cream); }
.hero-actions .btn-ghost:hover { background: var(--cream); color: var(--ink); }


/* =============================================================
   8. Propuesta de valor
   ============================================================= */
#propuesta { padding-bottom: clamp(2.5rem, 4.5vw, 4rem); }
#proyectos { padding-top: clamp(2.5rem, 4.5vw, 4rem); }

.value {
  display: grid; gap: clamp(2.25rem, 5vw, 3.25rem);
}
.value-head { display: grid; gap: 1.4rem; }
.value-lede { font-size: clamp(1.05rem, 1.5vw, 1.3rem); color: var(--ink-soft); max-width: 52ch; line-height: 1.6; }

.flow {
  display: grid; gap: 0;
  border-top: 1px solid var(--line);
}
.flow-item {
  display: grid; grid-template-columns: auto 1fr; align-items: baseline; gap: 1.2rem;
  padding-block: 1.5rem;
  border-bottom: 1px solid var(--line);
}
.flow-item .n { font-family: var(--mono); font-size: 1.05rem; color: var(--accent); }
.flow-item .label { font-family: var(--display); font-size: clamp(1.4rem, 2.6vw, 2rem); font-weight: 600; }
.flow-item .arrow { display: none; }

/* =============================================================
   9. Proyectos
   ============================================================= */
.projects-list { display: grid; gap: clamp(3rem, 5vw, 4.25rem); }
.project-row {
  display: grid; gap: 1.8rem;
}
.project-media {
  position: relative; overflow: hidden;
  aspect-ratio: 4 / 3;
}
.project-media img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 1.1s var(--ease-soft), filter 0.6s var(--ease-out);
}
.project-row:hover .project-media img { transform: scale(1.05); }
.project-badge {
  position: absolute; top: 1rem; left: 1rem;
  font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.06em; text-transform: uppercase;
  padding: 0.4rem 0.8rem; background: rgba(22,21,15,0.72); color: var(--cream);
  backdrop-filter: blur(4px);
}
.project-meta {
  display: grid; gap: 1.1rem;
}
.project-index { font-family: var(--mono); font-size: 1rem; color: var(--accent); }
.project-title { font-size: clamp(1.7rem, 3vw, 2.6rem); }
.project-specs {
  display: flex; flex-wrap: wrap; gap: 0.7rem 2.1rem;
  padding-top: 0.8rem; border-top: 1px solid var(--line);
}
.project-specs dt { display: block; font-family: var(--mono); font-size: 0.82rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-mute); }
.project-specs dd { display: block; margin: 0.25rem 0 0; font-family: var(--sans); font-size: 1.12rem; font-weight: 500; color: var(--ink-soft); }
.project-specs .spec { display: inline-flex; flex-direction: column; }
.project-desc { color: var(--ink-mute); font-size: 1.08rem; line-height: 1.6; max-width: 54ch; }

@media (min-width: 960px) {
  .project-row { grid-template-columns: 1.5fr 1fr; align-items: center; gap: 4rem; }
  .project-row.is-alt { grid-template-columns: 1fr 1.5fr; }
  .project-row.is-alt .project-media { order: 2; }
  .project-row.is-alt .project-meta { order: 1; }
}
@media (min-width: 1280px) {
  .project-row { gap: 5rem; }
}

.projects-note {
  margin-top: clamp(2rem, 5vw, 3rem);
  font-family: var(--mono); font-size: 0.78rem; color: var(--ink-mute);
  padding: 1.2rem 1.4rem; border: 1px dashed var(--line-strong);
  max-width: 62ch;
}

/* =============================================================
   10. Servicios
   ============================================================= */
.services { position: relative; }
.services-layout { display: grid; gap: clamp(2rem, 5vw, 3rem); }
.services-list { border-top: 1px solid var(--line); }
.service-row {
  position: relative;
  display: grid; grid-template-columns: auto 1fr; align-items: center;
  gap: 1.2rem; padding-block: 1.9rem; padding-left: 1.1rem;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
  transition: background-color 0.3s var(--ease-out);
}
.service-row::before {
  content: ""; position: absolute; left: 0; top: 0.5rem; bottom: 0.5rem; width: 2px;
  background: var(--accent);
  transform: scaleY(0); transform-origin: center;
  transition: transform 0.3s var(--ease-out);
}
.service-row:hover, .service-row.is-active { background: var(--bg-2); }
.service-row.is-active::before { transform: scaleY(1); }
.service-row .n { font-family: var(--mono); font-size: 1.08rem; color: var(--ink-mute); transition: color 0.3s var(--ease-out); }
.service-row.is-active .n, .service-row:hover .n { color: var(--accent); }
.service-row .name-wrap { min-width: 0; }
.service-row .name { font-family: var(--display); font-size: clamp(1.45rem, 2.7vw, 2.2rem); font-weight: 600; transition: transform 0.3s var(--ease-out); }
.service-row:hover .name, .service-row.is-active .name { transform: translateX(8px); }
.service-row .text { display: block; font-size: 1.05rem; color: var(--ink-mute); margin-top: 0.4rem; max-width: 46ch; }

.services-preview {
  position: relative; overflow: hidden;
  aspect-ratio: 4 / 5;
  margin-top: 0.5rem;
}
.services-preview img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  object-position: 50% 50%;
  opacity: 0; transition: opacity 0.32s var(--ease-out);
}
.services-preview img.is-active { opacity: 1; }

@media (min-width: 960px) {
  .services-layout { grid-template-columns: 1fr 1fr; align-items: start; }
  .services-preview { margin-top: 0; position: sticky; top: calc(var(--nav-h) + 2rem); }
}

/* =============================================================
   11. Proceso (dark)
   ============================================================= */
.process-list { position: relative; display: grid; gap: 0; }
.process-line {
  position: absolute; left: 12px; top: 0.4rem; bottom: 0.4rem; width: 1.5px;
  background: var(--line-dark);
}
.process-line-fill {
  position: absolute; left: 0; top: 0; width: 100%; height: 0%;
  background: var(--accent-on-dark);
  transform-origin: top;
}
.process-item {
  position: relative; padding-left: 3.6rem; padding-block: 2.1rem;
  border-bottom: 1px solid var(--line-dark);
  display: grid; gap: 0.7rem;
}
.process-item:first-child { padding-top: 0; }
.process-dot {
  position: absolute; left: 3px; top: 2.5rem;
  width: 21px; height: 21px; border-radius: 50%;
  border: 1px solid var(--line-dark); background: var(--bg-dark);
  display: grid; place-items: center;
  transition: border-color 0.5s var(--ease-out), background-color 0.5s var(--ease-out);
}
.process-item.is-active .process-dot { border-color: var(--accent-on-dark); background: var(--accent-on-dark); }
.process-item .n { font-family: var(--mono); font-size: 1.05rem; color: var(--accent-on-dark); }
.process-item h3 { font-size: clamp(1.6rem, 3vw, 2.3rem); }
.process-item p { color: var(--cream-mute); max-width: 64ch; font-size: 1.2rem; line-height: 1.6; }

/* =============================================================
   12. Diferencial técnico
   ============================================================= */
.pillars { display: grid; gap: var(--gutter); background: var(--line); border: 1px solid var(--line); margin-top: 2.5rem; }
.pillar { background: var(--bg); padding: clamp(1.9rem, 3.4vw, 2.8rem); display: grid; gap: 1rem; align-content: start; }
.pillar .n { font-family: var(--mono); font-size: 1.05rem; color: var(--accent); }
.pillar h3 { font-size: clamp(1.5rem, 2.4vw, 1.9rem); }
.pillar p { color: #5c5747; font-size: 1.1rem; line-height: 1.55; }
@media (min-width: 720px) { .pillars { grid-template-columns: repeat(3, 1fr); } }

/* =============================================================
   13. Confianza
   ============================================================= */
.trust-grid { display: grid; gap: var(--gutter); background: var(--line); border: 1px solid var(--line); }
.trust-item { background: var(--bg); padding: clamp(2rem, 3.4vw, 2.7rem); display: grid; gap: 0.8rem; align-content: start; }
.trust-item h3 { font-family: var(--sans); font-size: 1.35rem; font-weight: 600; }
.trust-item p { color: var(--ink-mute); font-size: 1.08rem; line-height: 1.55; }
@media (min-width: 640px) { .trust-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .trust-grid { grid-template-columns: repeat(3, 1fr); } }

/* =============================================================
   14. Nosotros
   ============================================================= */
.about { display: grid; gap: clamp(2.5rem, 6vw, 4rem); }
.about-media { position: relative; aspect-ratio: 16/10; overflow: hidden; }
.about-media img { width: 100%; height: 100%; object-fit: cover; }
.about-copy { display: grid; gap: 1.2rem; max-width: 60ch; }
.about-copy p { color: var(--ink-soft); font-size: 1.12rem; line-height: 1.65; }
@media (min-width: 960px) { .about { grid-template-columns: 1fr 1fr; align-items: center; gap: 4rem; } }

/* =============================================================
   15. Experiencias
   ============================================================= */
.exp-grid { display: grid; gap: 1.4rem; }
.exp-card {
  border: 1px solid var(--line-strong);
  padding: clamp(2.1rem, 3.6vw, 2.9rem);
  display: grid; gap: 1.1rem; align-content: start;
}
.exp-index {
  font-family: var(--mono); font-size: 0.85rem; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--accent);
}
.exp-title { font-size: clamp(1.35rem, 2vw, 1.6rem); }
.exp-body { color: var(--ink-soft); font-size: 1.05rem; line-height: 1.6; }
.exp-meta {
  display: flex; flex-wrap: wrap; gap: 0.5rem 1.2rem;
  font-family: var(--mono); font-size: 0.85rem; color: var(--ink-mute);
  padding-top: 0.9rem; margin-top: 0.2rem; border-top: 1px solid var(--line);
}
@media (min-width: 720px) { .exp-grid { grid-template-columns: repeat(3, 1fr); } }

/* =============================================================
   16. FAQ
   ============================================================= */
.faq-list { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-q {
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding-block: 1.6rem; text-align: left;
}
.faq-q .qtext { font-family: var(--display); font-size: clamp(1.05rem, 1.8vw, 1.25rem); font-weight: 600; }
.faq-q .qn { font-family: var(--mono); font-size: 0.85rem; color: var(--ink-mute); margin-right: 0.9rem; }
.faq-plus { position: relative; width: 18px; height: 18px; flex-shrink: 0; }
.faq-plus::before, .faq-plus::after {
  content: ""; position: absolute; background: var(--ink);
  transition: transform 0.4s var(--ease-out);
}
.faq-plus::before { top: 50%; left: 0; width: 100%; height: 1px; transform: translateY(-50%); }
.faq-plus::after { left: 50%; top: 0; width: 1px; height: 100%; transform: translateX(-50%); }
.faq-item.is-open .faq-plus::after { transform: translateX(-50%) rotate(90deg); opacity: 0; }
.faq-a {
  display: grid; grid-template-rows: 0fr; opacity: 0;
  transition: grid-template-rows 0.5s var(--ease-soft), opacity 0.4s var(--ease-out);
}
.faq-item.is-open .faq-a { grid-template-rows: 1fr; opacity: 1; }
.faq-a-inner { overflow: hidden; }
.faq-a p { padding-bottom: 1.5rem; max-width: 68ch; color: var(--ink-mute); font-size: 1.08rem; line-height: 1.6; }

/* =============================================================
   17. CTA banda
   ============================================================= */
.cta-band {
  background: var(--ink); color: var(--cream);
  padding-block: clamp(3rem, 6.5vw, 5.4rem);
  text-align: center;
  display: grid; gap: 1.8rem; justify-items: center;
}
.cta-band h2 { font-size: clamp(2rem, 5vw, 3.6rem); max-width: 20ch; }
.cta-band .btn-primary { background: var(--cream); color: var(--ink); border-color: var(--cream); padding: 1.15rem 2.15rem; font-size: 0.98rem; }
.cta-band .btn-primary:hover { background: var(--accent-on-dark); border-color: var(--accent-on-dark); color: var(--ink); }

/* =============================================================
   18. Formulario multistep
   ============================================================= */
.form-section { background: var(--bg-2); }
.form-wrap {
  max-width: var(--container-form); margin-inline: auto;
  border: 1px solid var(--line-strong);
  background: var(--paper);
}
.form-progress {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.4rem clamp(1.4rem, 3.4vw, 2.6rem);
  border-bottom: 1px solid var(--line);
  font-family: var(--mono); font-size: 0.85rem; color: var(--ink-mute);
}
.form-progress-count { color: var(--ink); }
.form-progress-bar { position: relative; flex: 1; margin-inline: 1.2rem; height: 1px; background: var(--line); }
.form-progress-fill { position: absolute; left: 0; top: 0; height: 100%; background: var(--accent); transition: width 0.6s var(--ease-soft); }

.form-body { padding: clamp(2rem, 4.6vw, 3.6rem); position: relative; min-height: 380px; }
.form-step { display: none; animation: stepIn 0.5s var(--ease-soft); }
.form-step.is-active { display: grid; gap: 1.8rem; }
@keyframes stepIn { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }

.form-step h3 { font-size: clamp(1.5rem, 2.9vw, 2.1rem); max-width: 22ch; }

.option-grid { display: grid; gap: 0.9rem; }
@media (min-width: 540px) { .option-grid { grid-template-columns: repeat(2, 1fr); } }
.option-btn {
  display: flex; align-items: center; justify-content: space-between; gap: 0.8rem;
  padding: 1.25rem 1.5rem; border: 1px solid var(--line-strong);
  font-family: var(--sans); font-weight: 500; font-size: 1.05rem;
  transition: border-color 0.3s var(--ease-out), background-color 0.3s var(--ease-out);
}
.option-btn .mark {
  width: 16px; height: 16px; border: 1px solid var(--line-strong); border-radius: 50%; flex-shrink: 0;
  position: relative;
}
.option-btn.is-selected { border-color: var(--accent); background: var(--bg-2); }
.option-btn.is-selected .mark { border-color: var(--accent); }
.option-btn.is-selected .mark::after {
  content: ""; position: absolute; inset: 3px; border-radius: 50%; background: var(--accent);
}
.option-grid.has-error .option-btn { border-color: var(--accent); }

.field-error {
  font-family: var(--mono); font-size: 0.85rem; color: var(--accent);
  margin-top: -0.4rem;
}
[data-form-error] {
  margin: 0; padding: 0.9rem clamp(1.2rem, 3vw, 2.2rem) 0;
}

.field { display: grid; gap: 0.6rem; }
.field label {
  font-family: var(--mono); font-size: 0.88rem; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--ink-mute);
}
.field input, .field select, .field textarea {
  width: 100%; padding: 0.9rem 1.2rem;
  font-size: 1.08rem;
  border: 1px solid var(--line-strong); background: var(--paper);
  transition: border-color 0.3s var(--ease-out);
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--accent); }
.field textarea { min-height: 160px; resize: vertical; }
.field-row { display: grid; gap: 1.3rem; }
@media (min-width: 640px) { .field-row.cols-2 { grid-template-columns: 1fr 1fr; } }

.upload-zone {
  border: 1px dashed var(--line-strong);
  padding: 1.6rem; text-align: center;
  display: grid; gap: 0.5rem; justify-items: center;
  font-family: var(--mono); font-size: 0.78rem; color: var(--ink-mute);
  cursor: pointer;
}
.upload-zone:hover { border-color: var(--accent); }
.upload-zone input[type="file"] { display: none; }

.form-nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.2rem clamp(1.2rem, 3vw, 2.2rem);
  border-top: 1px solid var(--line);
}
.form-back {
  font-family: var(--mono); font-size: 0.85rem; color: var(--ink-mute);
  display: flex; align-items: center; gap: 0.5rem;
  visibility: hidden;
}
.form-back.is-visible { visibility: visible; }

.form-success {
  display: none; padding: clamp(2.5rem, 6vw, 4rem); text-align: center;
  display: none; gap: 1.2rem; justify-items: center;
}
.form-success.is-visible { display: grid; }
.form-success .check {
  width: 52px; height: 52px; border-radius: 50%; border: 1px solid var(--accent);
  display: grid; place-items: center;
}
.form-success .check svg { width: 22px; height: 22px; }
.form-success .check path { stroke: var(--accent); stroke-width: 2; fill: none; stroke-dasharray: 1; stroke-dashoffset: 1; transition: stroke-dashoffset 0.6s var(--ease-out) 0.2s; }
.form-success.is-visible .check path { stroke-dashoffset: 0; }
.form-success h3 { font-size: 1.7rem; }
.form-success p { color: var(--ink-mute); max-width: 46ch; font-size: 1rem; }
.form-note {
  font-family: var(--mono); font-size: 0.8rem; color: var(--ink-mute);
  padding: 1rem clamp(1.2rem, 3vw, 2.2rem);
  border-top: 1px solid var(--line);
}

.direct-contact {
  max-width: var(--container-form); margin: clamp(2.2rem, 4.8vw, 3rem) auto 0;
  text-align: center; display: grid; gap: 1.1rem;
  padding-top: clamp(1.8rem, 3.4vw, 2.3rem);
  border-top: 1px solid var(--line-strong);
}
.direct-contact-label {
  font-family: var(--mono); font-size: 0.95rem; color: var(--ink-mute);
  letter-spacing: 0.04em;
}
.direct-contact-links { display: flex; flex-wrap: wrap; gap: 0.9rem 2.6rem; justify-content: center; }
.direct-contact-links a {
  position: relative; font-family: var(--sans); font-weight: 500; font-size: 1.2rem;
  display: inline-flex; align-items: baseline; gap: 0.4em;
}
.direct-contact-links .direct-label { font-family: var(--mono); font-size: 0.85rem; color: var(--ink-mute); text-transform: uppercase; letter-spacing: 0.04em; }
.direct-contact-links a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 1px; background: currentColor;
  transform: scaleX(0); transform-origin: right; transition: transform 0.4s var(--ease-out);
}
.direct-contact-links a:hover::after { transform: scaleX(1); transform-origin: left; }

/* =============================================================
   19. Footer
   ============================================================= */
.footer { background: var(--ink); color: var(--cream); padding-block: clamp(2.6rem, 5vw, 4.25rem) 1.8rem; }
.footer-top {
  display: grid; gap: clamp(2rem, 5vw, 3.5rem);
  padding-bottom: clamp(2.5rem, 5vw, 3.5rem);
  border-bottom: 1px solid var(--line-dark);
}
.footer-brand { display: grid; gap: 1.1rem; max-width: 34ch; }
.footer-brand .name { font-family: var(--display); font-size: 2rem; font-weight: 700; }
.footer-brand p { color: var(--cream-mute); font-size: 1.05rem; }
.footer-cols { display: grid; gap: 2.4rem; }
.footer-col h4 {
  font-family: var(--mono); font-size: 0.88rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--cream-mute); margin-bottom: 1rem;
}
.footer-spec { display: grid; gap: 0.7rem; }
.footer-spec-row { display: flex; justify-content: space-between; gap: 1rem; font-size: 1.08rem; border-bottom: 1px dotted var(--line-dark); padding-bottom: 0.6rem; }
.footer-spec-row .k { font-family: var(--mono); font-size: 0.88rem; color: var(--cream-mute); text-transform: uppercase; letter-spacing: 0.04em; }
.footer-spec-row .v { text-align: right; }
.footer-spec-row .v.is-pending { color: var(--cream-mute); font-style: italic; }
.footer-spec-row .v a { position: relative; }
.footer-spec-row .v a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 1px; background: currentColor;
  transform: scaleX(0); transform-origin: right; transition: transform 0.4s var(--ease-out);
}
.footer-spec-row .v a:hover::after { transform: scaleX(1); transform-origin: left; }
.footer-links { display: grid; gap: 0.7rem; }
.footer-links a { font-size: 1.08rem; position: relative; width: fit-content; }
.footer-links a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 1px; background: currentColor;
  transform: scaleX(0); transform-origin: right; transition: transform 0.4s var(--ease-out);
}
.footer-links a:hover::after { transform: scaleX(1); transform-origin: left; }
.footer-bottom {
  padding-top: 1.8rem;
  display: flex; flex-wrap: wrap; gap: 1rem;
  justify-content: space-between; align-items: center;
  font-family: var(--mono); font-size: 0.88rem; color: var(--cream-mute);
}
@media (min-width: 720px) { .footer-cols { grid-template-columns: repeat(3, 1fr); } }
/* Clear the floating Llamar/WhatsApp stack so it never sits over the credits link */
@media (min-width: 960px) { .footer-bottom { padding-right: 11rem; } }
@media (min-width: 960px) { .footer-top { grid-template-columns: 1fr 2fr; } }

/* =============================================================
   20. Botones flotantes — Llamar + WhatsApp
   ============================================================= */
.fab-stack {
  position: fixed; right: 1.1rem; z-index: 90;
  bottom: calc(5.4rem + env(safe-area-inset-bottom, 0px));
  display: flex; flex-direction: column; align-items: flex-end; gap: 0.75rem;
}
.fab {
  display: flex; align-items: center; justify-content: center; gap: 0.55rem;
  width: 57px; height: 57px; border-radius: 50%;
  background: var(--ink); color: var(--cream);
  box-shadow: 0 10px 30px rgba(0,0,0,0.25);
  transition: transform 0.3s var(--ease-soft), background-color 0.3s var(--ease-out), border-radius 0.3s var(--ease-out), width 0.3s var(--ease-out), padding 0.3s var(--ease-out);
}
.fab svg { width: 22px; height: 22px; flex-shrink: 0; }
.fab:hover { background: var(--accent); transform: translateY(-3px); }
.fab-text { display: none; }
.fab-wa[data-enabled="true"] { display: flex; }
.fab-wa:not([data-enabled="true"]) { display: none; }

@media (min-width: 960px) {
  .fab-stack { bottom: 1.3rem; right: 1.3rem; }
  .fab {
    width: auto; height: 53px; border-radius: 999px; padding: 0 1.4rem 0 1.15rem;
  }
  .fab-text {
    display: inline; font-family: var(--mono); font-size: 0.85rem;
    letter-spacing: 0.04em; text-transform: uppercase; white-space: nowrap;
  }
}

/* =============================================================
   21. Mobile sticky CTA
   ============================================================= */
.mobile-cta {
  position: fixed; left: 0.8rem; right: 0.8rem; bottom: 0.8rem; z-index: 88;
  display: flex; justify-content: center;
  transform: translateY(120%);
  transition: transform 0.5s var(--ease-soft);
}
.mobile-cta.is-visible { transform: translateY(0); }
.mobile-cta a {
  width: 100%; justify-content: center;
  background: var(--ink); color: var(--cream); border-color: var(--ink);
  padding: 1rem 1.4rem; box-shadow: 0 14px 34px rgba(0,0,0,0.28);
}
@media (min-width: 960px) { .mobile-cta { display: none; } }

/* =============================================================
   22. Responsive — nav / general
   ============================================================= */
@media (min-width: 720px) {
  .hero-content { padding-inline: var(--edge); }
}
@media (min-width: 960px) {
  .nav-links { display: flex; }
  .nav-cta { display: inline-flex; }
  .nav-burger { display: none; }
  .flow { display: flex; border-top: none; }
  .flow-item { border-bottom: none; border-right: 1px solid var(--line); flex: 1; flex-direction: column; align-items: flex-start; gap: 0.6rem; padding: 0 1.6rem; }
  .flow-item:first-child { padding-left: 0; }
  .flow-item:last-child { border-right: none; }
}
@media (min-width: 1024px) {
  :root { --nav-h: 86px; }
}
@media (min-width: 1600px) {
  :root { --nav-h: 90px; }
}

/* =============================================================
   23. Reduced motion — only intrusive effects
   ============================================================= */
@media (prefers-reduced-motion: reduce) {
  .hero-bg img { animation: none !important; }
}

/* =============================================================
   24. Print-ish credits page
   ============================================================= */
.page-credits { padding-top: var(--nav-h); }
.credits-list { display: grid; gap: 1rem; padding-block: 2rem; max-width: 70ch; }
.credits-list li { border-bottom: 1px solid var(--line); padding-bottom: 1rem; font-size: 0.92rem; }
.credits-list a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }