/* =========================================================
   NahCab Studio — Sales landing
   Paleta estricta: carbon / off-white / cherry / white
   ========================================================= */

/* ---------- Fonts (self-hosted, latin subset) ---------- */
@font-face { font-family: "Inter Tight"; src: url("assets/fonts/inter-tight-latin-500-normal.woff2") format("woff2"); font-weight: 500; font-style: normal; font-display: swap; }
@font-face { font-family: "Inter Tight"; src: url("assets/fonts/inter-tight-latin-600-normal.woff2") format("woff2"); font-weight: 600; font-style: normal; font-display: swap; }
@font-face { font-family: "Raleway"; src: url("assets/fonts/raleway-latin-400-normal.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "Raleway"; src: url("assets/fonts/raleway-latin-600-normal.woff2") format("woff2"); font-weight: 600; font-style: normal; font-display: swap; }
@font-face { font-family: "Raleway"; src: url("assets/fonts/raleway-latin-700-normal.woff2") format("woff2"); font-weight: 700; font-style: normal; font-display: swap; }
@font-face { font-family: "Playfair Display"; src: url("assets/fonts/playfair-display-latin-400-italic.woff2") format("woff2"); font-weight: 400; font-style: italic; font-display: swap; }

/* ---------- Tokens ---------- */
:root {
  --carbon: #242628;
  --paper: #fefcfa;
  --cherry: #e55a65;
  --white: #ffffff;

  --ink: var(--carbon);
  --ink-soft: rgba(36, 38, 40, .74);
  --ink-mute: rgba(36, 38, 40, .62);
  --line: rgba(36, 38, 40, .14);
  --paper-soft: rgba(254, 252, 250, .76);
  --paper-mute: rgba(254, 252, 250, .62);
  --line-dark: rgba(254, 252, 250, .16);

  --f-display: "Inter Tight", "Helvetica Neue", Arial, sans-serif;
  --f-serif: "Playfair Display", Georgia, "Times New Roman", serif;
  --f-sans: "Raleway", system-ui, -apple-system, "Segoe UI", sans-serif;

  --wrap: 1320px;
  --gutter: clamp(20px, 4vw, 56px);
  --section: clamp(88px, 11vw, 168px);
  --header-h: 72px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: var(--header-h); }
body {
  margin: 0;
  font-family: var(--f-sans);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, video { display: block; max-width: 100%; height: auto; }
h1, h2, h3, p, ol, ul, figure, blockquote { margin: 0; }
ol, ul { padding: 0; list-style: none; }
a { color: inherit; }
em { font-style: italic; }
::selection { background: var(--cherry); color: var(--white); }
:focus-visible { outline: 2px solid var(--cherry); outline-offset: 4px; border-radius: 4px; }

.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }
.sr-only { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip { position: absolute; left: 16px; top: -60px; z-index: 100; padding: 10px 18px; background: var(--cherry); color: var(--white); border-radius: 999px; font-weight: 700; text-decoration: none; }
.skip:focus { top: 12px; }

/* Surfaces */
.dark  { background: var(--carbon); color: var(--paper); }
.light { background: var(--paper);  color: var(--ink); }
.white { background: var(--white);  color: var(--ink); }
.section { padding-block: var(--section); }

/* ---------- Typography ---------- */
.display {
  font-family: var(--f-display);
  font-weight: 500;
  line-height: 1.02;
  letter-spacing: -.04em;
  text-wrap: balance;
}
.display em {
  font-family: var(--f-serif);
  font-style: italic;
  text-transform: none;
  color: var(--cherry);
  font-weight: 400;
  letter-spacing: -.015em;
  font-size: 1em;
  line-height: 1;
}
.display > span { display: block; }
.h2 { font-size: clamp(2.5rem, 5vw, 4.5rem); }

.label {
  display: flex; align-items: center; gap: 14px;
  font-size: .75rem; font-weight: 700;
  letter-spacing: .2em; text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: clamp(22px, 3vw, 34px);
}
.label--light { color: var(--paper-soft); }
.label-line { width: 34px; height: 1px; background: var(--cherry); flex: none; }

.lead { font-size: clamp(1.125rem, 1.6vw, 1.375rem); line-height: 1.55; max-width: 36ch; }
.dark .lead { color: var(--paper-soft); }
.micro { font-size: .8125rem; letter-spacing: .08em; text-transform: uppercase; font-weight: 600; color: var(--paper-mute); }

/* ---------- Buttons (pill) ---------- */
.btn {
  --bg: var(--cherry);
  display: inline-flex; align-items: center; justify-content: center; gap: 12px;
  min-height: 58px; padding: 14px 30px;
  border-radius: 999px; border: 1.5px solid var(--bg);
  background: var(--bg); color: var(--white);
  font-family: var(--f-sans); font-weight: 700;
  font-size: 1.1875rem; /* ≥18.66px bold → texto grande (contraste AA) */
  line-height: 1.1; letter-spacing: .005em;
  text-decoration: none; white-space: nowrap;
  transition: background-color .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease), transform .25s var(--ease);
}
.btn:hover { background: var(--carbon); border-color: var(--carbon); color: var(--paper); }
.dark .btn:hover { background: var(--paper); border-color: var(--paper); color: var(--carbon); }
.btn:active { transform: scale(.98); }
.btn-arrow { display: inline-block; transition: transform .25s var(--ease); }
.btn:hover .btn-arrow { transform: translateX(4px); }

.btn--outline { background: transparent; border-color: var(--cherry); color: var(--paper); }
.btn--outline:hover { background: var(--cherry); border-color: var(--cherry); color: var(--white); }

.btn--sm {
  min-height: 42px; padding: 8px 20px; font-size: .9375rem; font-weight: 600;
  background: transparent; border-color: rgba(254, 252, 250, .5); color: var(--paper);
}
.btn--sm:hover, .dark .btn--sm:hover { background: var(--cherry); border-color: var(--cherry); color: var(--white); }
.btn--lg { min-height: 68px; padding: 18px 40px; font-size: 1.3125rem; }

.text-link {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 600; font-size: 1rem; text-decoration: none;
  padding-block: 6px; border-bottom: 1px solid currentColor;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.text-link--light { color: var(--paper); border-color: rgba(254, 252, 250, .4); }
.text-link--light:hover { border-color: var(--cherry); }

.cta-row { display: flex; flex-wrap: wrap; align-items: center; gap: 18px 28px; }

/* ---------- Header ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  height: var(--header-h);
  background: var(--carbon); color: var(--paper);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease);
}
.site-header.is-scrolled { border-bottom-color: var(--line-dark); }
.header-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }

.logo { display: inline-flex; align-items: center; text-decoration: none; color: inherit; }
.logo-img { display: block; height: 36px; width: auto; max-width: 200px; object-fit: contain; }
.logo--footer .logo-img { height: 32px; }
@media (max-width: 600px) { .logo-img { height: 30px; max-width: 160px; } }
.logo-mark { font-family: var(--f-display); font-weight: 600; font-size: 1.375rem; letter-spacing: -.03em; line-height: 1; }
.logo-sub { font-family: var(--f-serif); font-style: italic; font-size: 1.0625rem; color: var(--cherry); }

.nav { display: flex; align-items: center; gap: clamp(18px, 2.4vw, 36px); }
.nav a:not(.btn) {
  font-size: .9375rem; font-weight: 600; text-decoration: none; color: var(--paper-soft);
  transition: color .2s var(--ease);
}
.nav a:not(.btn):hover { color: var(--paper); }

.header-tools { display: flex; align-items: center; gap: 18px; }
.lang-switch { display: inline-flex; align-items: center; padding: 3px; border: 1px solid var(--line-dark); border-radius: 999px; }
.lang-switch a {
  display: inline-grid; place-items: center; min-width: 38px; height: 30px; padding: 0 10px;
  border-radius: 999px; font-size: .75rem; font-weight: 700; letter-spacing: .12em;
  text-decoration: none; color: var(--paper-mute); transition: color .2s var(--ease), background-color .2s var(--ease);
}
.lang-switch a:hover { color: var(--paper); }
.lang-switch a[aria-current="page"] { background: var(--paper); color: var(--carbon); }

.menu-toggle {
  display: none; align-items: center; gap: 10px;
  background: none; border: 0; padding: 10px 0; margin: 0;
  color: var(--paper); font: 600 .9375rem var(--f-sans); cursor: pointer;
}
.menu-toggle__bars, .menu-toggle__bars::before { display: block; width: 22px; height: 1.5px; background: currentColor; transition: transform .3s var(--ease); }
.menu-toggle__bars { position: relative; transform: translateY(-3px); }
.menu-toggle__bars::before { content: ""; position: absolute; top: 6px; }
.menu-toggle[aria-expanded="true"] .menu-toggle__bars { transform: translateY(0) rotate(45deg); }
.menu-toggle[aria-expanded="true"] .menu-toggle__bars::before { transform: translateY(-6px) rotate(-90deg); }

/* ---------- 01 Hero ---------- */
.hero { padding-top: calc(var(--header-h) + clamp(48px, 7vw, 104px)); padding-bottom: clamp(36px, 4vw, 56px); overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: clamp(32px, 4vw, 64px); align-items: end; }
.hero-copy { grid-column: 1 / span 7; padding-bottom: clamp(8px, 2vw, 40px); }
.hero-title { font-size: clamp(3rem, 6.4vw, 6.75rem); margin-bottom: clamp(28px, 3vw, 40px); }
.hero-title__second { display: block; margin-top: .06em; }
.hero .lead { margin-bottom: clamp(32px, 3.4vw, 48px); }

.hero-visual { grid-column: 8 / span 5; position: relative; }
.hero-image { aspect-ratio: 4 / 5; overflow: hidden; background: #2f3133; }
.hero-image img { width: 100%; height: 100%; object-fit: cover; }


.hero-foot {
  display: flex; flex-wrap: wrap; gap: 10px 0;
  margin-top: clamp(56px, 7vw, 96px); padding-top: 22px;
  border-top: 1px solid var(--line-dark);
  font-size: .75rem; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--paper-mute);
}
.hero-foot span { padding-right: 22px; margin-right: 22px; border-right: 1px solid var(--line-dark); }
.hero-foot span:last-child { border: 0; margin: 0; padding: 0; }

/* ---------- Split layout (02) ---------- */
.split { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(40px, 6vw, 112px); }
.sticky-head { position: sticky; top: calc(var(--header-h) + 40px); align-self: start; }

.pain-list { border-top: 1px solid var(--line); counter-reset: pain; }
.pain-list li {
  display: grid; grid-template-columns: 76px 1fr; align-items: baseline; gap: 16px;
  padding-block: clamp(20px, 2.4vw, 30px); border-bottom: 1px solid var(--line);
}
.pain-list .num { font-family: var(--f-display); font-style: normal; font-weight: 500; letter-spacing: -.03em; font-variant-numeric: lining-nums tabular-nums; color: var(--cherry); line-height: 1; font-size: 2rem; }
.pain-list p { font-size: clamp(1.1875rem, 2vw, 1.625rem); line-height: 1.35; letter-spacing: -.005em; }
.pain-note { margin-top: clamp(28px, 3vw, 40px); font-size: 1.125rem; color: var(--ink-soft); }
.pain-note em { font-family: var(--f-serif); color: var(--carbon); font-size: 1.25rem; }

/* ---------- 03 Diagnosis ---------- */
.diag-title { font-size: clamp(2.6rem, 5.6vw, 5.25rem); max-width: 17ch; }
.diag-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(40px, 6vw, 112px); margin-top: clamp(48px, 6vw, 88px); align-items: start; }
.diag-copy { font-size: clamp(1.1875rem, 1.7vw, 1.4375rem); line-height: 1.55; color: var(--paper-soft); }
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(24px, 3vw, 48px); }
.compare__col { border-top: 1px solid var(--line-dark); padding-top: 22px; }
.compare__col--accent { border-top: 2px solid var(--cherry); }
.compare__title { font-size: .75rem; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; color: var(--paper-mute); margin-bottom: 18px; }
.compare__col--accent .compare__title { color: var(--paper); }
.compare li { padding-block: 12px; border-bottom: 1px solid var(--line-dark); font-size: 1.0625rem; }
.compare__col:not(.compare__col--accent) li { color: var(--paper-mute); text-decoration: line-through; text-decoration-color: rgba(254,252,250,.35); text-decoration-thickness: 1px; }

/* ---------- Section heads ---------- */
.section-head { margin-bottom: clamp(48px, 6vw, 88px); max-width: 980px; }
.section-head--split { max-width: none; display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 4fr); gap: 40px clamp(40px, 6vw, 112px); align-items: end; }
.section-head__aside { font-size: 1.0625rem; color: var(--ink-soft); max-width: 40ch; }
.dark .section-head__aside { color: var(--paper-soft); }

/* ---------- 04 Transformation ---------- */
.benefits { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: clamp(40px, 6vw, 112px); }
.benefit {
  display: grid; grid-template-columns: 96px 1fr; column-gap: 20px; align-items: baseline;
  padding-block: clamp(28px, 3.4vw, 48px); border-top: 1px solid var(--line);
}
.benefit__num { grid-row: span 2; font-family: var(--f-display); font-style: normal; font-weight: 500; letter-spacing: -.03em; font-variant-numeric: lining-nums tabular-nums; color: var(--cherry); line-height: 1; font-size: clamp(2.5rem, 3.6vw, 3.25rem); }
.benefit__title { font-family: var(--f-display); font-weight: 500; letter-spacing: -.035em; font-size: clamp(1.75rem, 2.6vw, 2.375rem); line-height: 1.05; margin-bottom: 12px; }
.benefit p { color: var(--ink-soft); font-size: 1.125rem; max-width: 34ch; }

/* ---------- 05 Solution ---------- */
.solution { padding-block: calc(var(--section) * 1.1); }
.solution-title { font-size: clamp(2.75rem, 6vw, 5.75rem); max-width: 14ch; }
.solution-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(40px, 6vw, 112px); margin-top: clamp(48px, 6vw, 88px); }
.triad li { display: grid; grid-template-columns: 160px 1fr; gap: 20px; align-items: baseline; padding-block: 22px; border-top: 1px solid var(--line-dark); }
.triad li:last-child { border-bottom: 1px solid var(--line-dark); }
.triad__k { font-family: var(--f-display); font-weight: 500; font-size: 1.5rem; letter-spacing: -.03em; line-height: 1.1; }
.triad__v { color: var(--paper-soft); font-size: 1.0625rem; }
.cta-row--inline { margin-top: clamp(48px, 5vw, 72px); }

/* ---------- 06 Services ---------- */
.services { border-top: 1px solid var(--carbon); }
.service {
  display: grid; grid-template-columns: 80px minmax(0, 5fr) minmax(0, 6fr); grid-template-rows: auto auto;
  column-gap: clamp(20px, 3vw, 48px); row-gap: 10px; align-items: baseline;
  padding-block: clamp(26px, 3vw, 40px); border-bottom: 1px solid var(--line);
  transition: background-color .3s var(--ease);
}
.service__num { grid-row: span 2; font-family: var(--f-display); font-style: normal; font-weight: 500; letter-spacing: -.03em; font-variant-numeric: lining-nums tabular-nums; color: var(--cherry); line-height: 1; font-size: 2rem; }
.service__name {
  grid-row: span 2; font-family: var(--f-display); font-weight: 500; letter-spacing: -.04em;
  font-size: clamp(2rem, 3.6vw, 3.25rem); line-height: 1.02;
  transition: transform .35s var(--ease), color .35s var(--ease);
}
.service__desc { font-size: 1.125rem; }
.service__fit { font-size: .9375rem; color: var(--ink-mute); }
.service__fit span { font-family: var(--f-serif); font-style: italic; color: var(--carbon); margin-right: 4px; }
@media (hover: hover) {
  .service:hover .service__name { transform: translateX(10px); color: var(--cherry); }
}

/* ---------- 07 Selected work (masonry 3 columnas) ---------- */
.work-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(16px, 1.6vw, 24px); align-items: start; }
.work-col { display: flex; flex-direction: column; gap: clamp(28px, 3vw, 44px); }
.work__img { overflow: hidden; background: #e8e6e3; }
.work__img img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease); }
.ratio-4x3 { aspect-ratio: 4 / 3; }
.ratio-4x5 { aspect-ratio: 4 / 5; }
.ratio-1x1 { aspect-ratio: 1 / 1; }
@media (hover: hover) { .work:hover .work__img img { transform: scale(1.03); } }
.work__meta { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; margin-top: 16px; padding-bottom: 8px; border-bottom: 1px solid var(--line); }
.work__meta h3 { font-size: 1.0625rem; font-weight: 700; }
.work__meta { flex-direction: column; align-items: flex-start; gap: 4px; }
.work__meta span { font-family: var(--f-serif); font-style: italic; font-size: .9375rem; color: var(--ink-soft); }
.work__desc { margin-top: 10px; font-size: .9375rem; color: var(--ink-mute); max-width: 42ch; }

.cta-band {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 24px 40px;
  margin-top: clamp(64px, 7vw, 104px); padding-top: clamp(32px, 3.4vw, 48px); border-top: 1px solid var(--carbon);
}
.cta-band__text { font-size: clamp(1.375rem, 2.4vw, 2rem); line-height: 1.25; max-width: 30ch; }
.cta-band__text em { font-family: var(--f-serif); color: var(--cherry); }

/* ---------- 08 Before / After ---------- */
.ba { position: relative; }
.ba__stage { position: relative; aspect-ratio: 16 / 10; overflow: hidden; background: #333537; user-select: none; }
.ba__img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.ba__before { position: absolute; inset: 0; clip-path: inset(0 calc(100% - var(--pos, 50%)) 0 0); }
.ba__handle { position: absolute; top: 0; bottom: 0; left: var(--pos, 50%); width: 0; pointer-events: none; }
.ba__handle::before { content: ""; position: absolute; top: 0; bottom: 0; left: -.75px; width: 1.5px; background: var(--paper); }
.ba__handle span {
  position: absolute; top: 50%; left: 0; width: 52px; height: 52px; transform: translate(-50%, -50%);
  border-radius: 999px; background: var(--cherry); display: grid; place-items: center;
}
.ba__handle span::before { content: "← →"; color: var(--white); font-size: .8125rem; font-weight: 700; letter-spacing: .05em; }
.ba.is-focus .ba__handle span { outline: 2px solid var(--paper); outline-offset: 4px; }
.ba__tag {
  position: absolute; top: 18px; padding: 6px 14px; border-radius: 999px;
  font-size: .6875rem; font-weight: 700; letter-spacing: .18em; text-transform: uppercase;
  background: var(--carbon); color: var(--paper); pointer-events: none;
}
.ba__tag--l { left: 18px; }
.ba__tag--r { right: 18px; background: var(--paper); color: var(--carbon); }
.ba__range { position: absolute; top: 0; left: 0; width: 100%; aspect-ratio: 16 / 10; height: auto; margin: 0; opacity: 0; cursor: ew-resize; -webkit-appearance: none; appearance: none; }
.ba__cap { margin-top: 18px; color: var(--paper-soft); font-size: .9375rem; }
.ba__cap strong { color: var(--paper); }

/* ---------- 09 Process ---------- */
.process { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: clamp(24px, 3vw, 48px); counter-reset: step; }
.step { position: relative; padding-top: 36px; border-top: 1px solid var(--carbon); }
.step::before { content: ""; position: absolute; top: -5px; left: 0; width: 9px; height: 9px; border-radius: 999px; background: var(--cherry); }
.step__num { display: block; font-family: var(--f-display); font-weight: 500; letter-spacing: -.05em; font-variant-numeric: lining-nums; font-size: clamp(3.25rem, 4.6vw, 4.5rem); line-height: .95; color: var(--carbon); margin-bottom: 18px; }
.step__title { font-family: var(--f-serif); font-style: italic; font-weight: 400; font-size: 1.625rem; line-height: 1.15; color: var(--cherry); margin-bottom: 10px; }
.step p { color: var(--ink-soft); font-size: 1.0625rem; max-width: 26ch; }
.process-note { margin-top: clamp(48px, 5vw, 72px); font-size: clamp(1.125rem, 1.6vw, 1.3125rem); max-width: 52ch; }

/* ---------- 10 Social proof ---------- */
.proofs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(16px, 1.6vw, 24px); align-items: start; }
.proof { position: relative; display: flex; flex-direction: column; justify-content: space-between; gap: 32px; min-height: 300px; padding: clamp(24px, 2.4vw, 36px); border: 1px solid var(--line-dark); }
.proof--tall { min-height: 380px; }
.proof--empty { border-style: dashed; border-color: rgba(254, 252, 250, .28); }
.proof__mark { font-family: var(--f-serif); font-style: italic; font-size: 5rem; line-height: .6; color: var(--cherry); }
.proof__ph { font-family: var(--f-serif); font-style: italic; font-size: 1.375rem; color: var(--paper-mute); }
.proof blockquote p { font-size: 1.25rem; line-height: 1.5; }
.proof figcaption { font-size: .8125rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--paper-mute); }
.proof--shot { padding: 0; }
.proof--shot img { width: 100%; }


.proofs--real { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.proofs--real .proof { min-height: 0; gap: 22px; justify-content: flex-start; border: 0; background: rgba(254, 252, 250, .045); border-radius: 18px; box-shadow: 0 24px 48px -16px rgba(0, 0, 0, .55), 0 6px 14px rgba(0, 0, 0, .25); }
.proofs--real .proof__mark { font-size: 4rem; line-height: .5; margin-top: 10px; }
.proofs--real blockquote { margin: 0; flex: 1; }
.proofs--real blockquote p { font-size: clamp(1.125rem, 1.6vw, 1.375rem); line-height: 1.5; color: var(--paper); }
.proofs--real figcaption { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 6px; padding-top: 18px; border-top: 1px solid var(--line-dark); text-transform: none; letter-spacing: 0; font-size: .9375rem; font-weight: 400; color: var(--paper-mute); }
.proofs--real figcaption strong { color: var(--paper); font-weight: 700; }
.proof__src { margin-left: auto; font-size: .8125rem; color: var(--paper-mute); }
.proof-note { margin-top: 20px; font-size: .8125rem; color: var(--paper-mute); }
@media (max-width: 900px) { .proofs--real { grid-template-columns: 1fr; } }

/* ---------- 11 About ---------- */
.about { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(40px, 7vw, 128px); align-items: center; }
.about__img { aspect-ratio: 4 / 5; overflow: hidden; background: #e8e6e3; }
.about__img img { width: 100%; height: 100%; object-fit: cover; }
.about__copy .h2 { margin-bottom: clamp(28px, 3vw, 40px); }
.about__text { font-size: clamp(1.125rem, 1.5vw, 1.3125rem); line-height: 1.6; max-width: 46ch; }
.about__quote { margin-top: 28px; font-family: var(--f-serif); font-size: clamp(1.5rem, 2.4vw, 2rem); line-height: 1.3; color: var(--cherry); max-width: 26ch; }
.about__sign { margin-top: 36px; padding-top: 20px; border-top: 1px solid var(--line); display: grid; gap: 2px; max-width: 320px; }
.about__sign span { font-size: .875rem; color: var(--ink-mute); }

/* ---------- 12 Final CTA ---------- */
.final { padding-block: calc(var(--section) * 1.25); position: relative; overflow: hidden; }
.final__inner { position: relative; z-index: 1; }
.final__title { font-size: clamp(3rem, 7vw, 7rem); max-width: 16ch; }
.final__copy { margin-top: clamp(28px, 3vw, 40px); font-size: clamp(1.1875rem, 1.8vw, 1.5rem); color: var(--paper-soft); max-width: 40ch; }
.final__cta { display: flex; flex-wrap: wrap; align-items: center; gap: 18px 28px; margin-top: clamp(40px, 4vw, 56px); }

/* ---------- Footer ---------- */
.site-footer { padding-block: 48px; border-top: 1px solid var(--line-dark); }
.footer-inner { display: grid; grid-template-columns: auto 1fr auto auto; align-items: center; gap: 24px 40px; }
.footer-note { color: var(--paper-mute); font-size: .9375rem; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 12px 24px; min-width: 0; }
.footer-nav a { font-size: .9375rem; text-decoration: none; color: var(--paper-soft); }
.footer-nav a:hover { color: var(--paper); }
.footer-copy { font-size: .875rem; color: var(--paper-mute); }

/* ---------- Sticky CTA (mobile) ---------- */
.sticky-cta { display: none; }

/* ---------- Reveal ---------- */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.js .reveal.is-in { opacity: 1; transform: none; }

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 1080px) {
  .hero-copy { grid-column: 1 / span 7; }
  .hero-visual { grid-column: 8 / span 5; }
  .triad li { grid-template-columns: 130px 1fr; }
}

@media (max-width: 900px) {
  :root { --header-h: 64px; }

  /* Menu */
  .menu-toggle { display: inline-flex; }
  .nav {
    position: fixed; inset: var(--header-h) 0 auto 0;
    flex-direction: column; align-items: flex-start; gap: 0;
    padding: 12px var(--gutter) 32px; background: var(--carbon);
    border-bottom: 1px solid var(--line-dark);
    transform: translateY(-8px); opacity: 0; visibility: hidden;
    transition: opacity .25s var(--ease), transform .25s var(--ease), visibility 0s linear .25s;
  }
  .nav.is-open { opacity: 1; transform: none; visibility: visible; transition-delay: 0s; }
  .nav a:not(.btn) { width: 100%; padding: 16px 0; border-bottom: 1px solid var(--line-dark); font-family: var(--f-display); font-size: 1.875rem; font-weight: 500; letter-spacing: -.03em; color: var(--paper); line-height: 1.1; }
  .nav .btn--sm { margin-top: 24px; min-height: 52px; padding: 12px 26px; font-size: 1.1875rem; font-weight: 700; background: var(--cherry); border-color: var(--cherry); color: var(--white); }

  /* Hero */
  .hero-grid { grid-template-columns: 1fr; }
  .hero-copy, .hero-visual { grid-column: 1 / -1; }
  .hero-copy { padding-bottom: 0; }
  .hero-visual { margin-top: 8px; }
  .hero-image { aspect-ratio: 4 / 4.4; }

  .split, .diag-grid, .solution-grid, .about { grid-template-columns: 1fr; }
  .sticky-head { position: static; }
  .section-head--split { grid-template-columns: 1fr; align-items: start; }
  .benefits { grid-template-columns: 1fr; }

  .service { grid-template-columns: 52px 1fr; grid-template-rows: auto; row-gap: 8px; }
  .service__num { grid-row: span 3; }
  .service__name { grid-row: auto; margin-bottom: 6px; }

  /* Work → 2 columnas tipo masonry */
  .work-grid { display: block; columns: 2; column-gap: 18px; }
  .work-col { display: contents; }
  .work { break-inside: avoid; margin-bottom: 36px; }

  .process { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 48px; }
  .proofs { grid-template-columns: 1fr 1fr; }
  .proof--tall { grid-row: span 2; }
  .about__img { max-width: 520px; }

  .footer-inner { grid-template-columns: 1fr; gap: 16px; }
}

@media (max-width: 768px) {
  /* Sticky CTA visible en mobile */
  .sticky-cta {
    display: flex; align-items: center; justify-content: space-between; gap: 12px;
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 40;
    padding: 10px 12px calc(10px + env(safe-area-inset-bottom)) 18px;
    background: var(--carbon); color: var(--paper);
    border-top: 1px solid var(--line-dark);
    transform: translateY(110%); transition: transform .35s var(--ease);
  }
  .sticky-cta.is-visible { transform: none; }
  .sticky-cta__text { font-size: .8125rem; font-weight: 600; line-height: 1.25; color: var(--paper-soft); }
  .sticky-cta__btn {
    flex: none; display: inline-flex; align-items: center; min-height: 44px; padding: 10px 18px;
    border-radius: 999px; background: var(--cherry); color: var(--white);
    font-weight: 700; font-size: .9375rem; text-decoration: none; white-space: nowrap;
  }
  .site-footer { padding-bottom: calc(48px + 72px + env(safe-area-inset-bottom)); }
}

@media (max-width: 600px) {
  body { font-size: 1rem; }
  .hero-title { font-size: clamp(2.6rem, 11.5vw, 3.6rem); }
  .h2 { font-size: clamp(2.2rem, 9.2vw, 3rem); }
  .diag-title, .solution-title { font-size: clamp(2.4rem, 10vw, 3.3rem); }
  .final__title { font-size: clamp(2.6rem, 10.5vw, 3.6rem); }
  .btn { width: 100%; }
  .cta-row { gap: 18px; }
  .cta-row .text-link { margin-inline: auto; }
  .hero-foot { font-size: .6875rem; letter-spacing: .14em; }
  .hero-foot span { padding-right: 12px; margin-right: 12px; }

  .pain-list li { grid-template-columns: 52px 1fr; gap: 10px; }
  .pain-list .num, .service__num { font-size: 1.625rem; }
  .compare { grid-template-columns: 1fr; }
  .benefit { grid-template-columns: 64px 1fr; column-gap: 12px; }
  .benefit__num { font-size: 2.25rem; }
  .triad li { grid-template-columns: 1fr; gap: 6px; }
  .service { grid-template-columns: 52px 1fr; column-gap: 12px; }

  .work-grid { columns: 1; }
  .work { margin-bottom: 40px; }
  .cta-band { flex-direction: column; align-items: stretch; }

  .ba__handle span { width: 44px; height: 44px; }
  .ba__tag { top: 12px; padding: 5px 10px; }
  .ba__tag--l { left: 12px; } .ba__tag--r { right: 12px; }

  .process { grid-template-columns: 1fr; row-gap: 0; border-left: 1px solid var(--carbon); margin-left: 4px; }
  .step { border-top: 0; padding: 0 0 40px 28px; }
  .step::before { top: 6px; left: -5px; }
  .step__num { font-size: 2.75rem; margin-bottom: 8px; }

  .proofs { grid-template-columns: 1fr; }
  .proof, .proof--tall { min-height: 220px; grid-row: auto; }
  .final__cta { flex-direction: column; align-items: stretch; text-align: center; }
}

@media (max-width: 380px) {
  .sticky-cta__text { font-size: .75rem; }
  .sticky-cta__btn { padding: 10px 14px; font-size: .875rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
  .js .reveal { opacity: 1; transform: none; }
}