/* ============================================================
   FibraMax × Backery Studio — main.css
   Adaptado del sistema de uptak. Paleta B/N (ink/paper/bone/fog),
   paneles invertidos en negro como recurso dramático, acento mínimo.
   ============================================================ */

/* ===========================
   RESET & BASE
   =========================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-display);
  background: var(--paper);
  color: var(--ink);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.is-locked { overflow: hidden; height: 100vh; }

img, video { max-width: 100%; display: block; }
a { color: inherit; }

.wrap { max-width: var(--maxw); margin: 0 auto; }

/* ===========================
   TYPOGRAPHY SYSTEM
   =========================== */
.display-huge {
  font-family: var(--font-display);
  font-size: var(--fs-huge);
  font-weight: 900;
  line-height: var(--lh-tight);
  letter-spacing: -0.03em;
  text-transform: uppercase;
}
.display-large {
  font-family: var(--font-display);
  font-size: var(--fs-display);
  font-weight: 900;
  line-height: 0.98;
  letter-spacing: -0.02em;
  text-transform: uppercase;
}
.display-medium {
  font-family: var(--font-display);
  font-size: var(--fs-h2);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.02em;
  text-transform: uppercase;
}
.serif-display {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.serif-large {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(1.4rem, 3vw, 3rem);
  font-weight: 600;
  line-height: 1.1;
}
.body-large { font-size: var(--fs-lead); font-weight: 400; line-height: var(--lh-body); }
.label {
  font-family: var(--font-display);
  font-size: var(--fs-label);
  font-weight: 700;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
}
.section-label {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--ink);
  opacity: 0.4;
  margin-bottom: 2.5rem;
  display: block;
}
em, .em { font-family: var(--font-serif); font-style: italic; }

/* Generic section paddings */
.section { padding: var(--section-pad) var(--gutter); }
.section--ink { background: var(--ink); color: var(--paper); }
.section--bone { background: var(--bone); }
.section--fog { background: var(--fog); }
.section--ink .section-label { color: var(--paper); opacity: 0.4; }

/* ===========================
   PASSWORD GATE
   =========================== */
.gate {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: var(--ink);
  color: var(--paper);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.75rem;
  padding: 2rem;
  text-align: center;
  transition: opacity 0.5s var(--ease), visibility 0.5s;
}
.gate.is-hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.gate__logo { width: 120px; opacity: 0.9; margin-bottom: 0.5rem; }
.gate__label {
  font-size: 0.7rem; font-weight: 700; letter-spacing: 0.16em;
  text-transform: uppercase; opacity: 0.45;
}
.gate__title {
  font-family: var(--font-serif); font-style: italic;
  font-size: clamp(1.8rem, 5vw, 3rem); font-weight: 700; line-height: 1.05;
  max-width: 18ch;
}
.gate__form { display: flex; gap: 0.5rem; margin-top: 0.5rem; flex-wrap: wrap; justify-content: center; }
.gate__input {
  font-family: var(--font-display); font-size: 1rem; font-weight: 600;
  letter-spacing: 0.3em; text-align: center;
  background: transparent; color: var(--paper);
  border: 1px solid var(--line-invert); border-radius: 100px;
  padding: 0.9rem 1.5rem; width: 200px; outline: none;
  transition: border-color 0.25s;
}
.gate__input:focus { border-color: var(--paper); }
.gate__input::placeholder { color: rgba(255,255,255,0.35); letter-spacing: 0.16em; }
.gate__btn {
  font-family: var(--font-display); font-size: 0.8rem; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase;
  background: var(--paper); color: var(--ink); border: none; cursor: pointer;
  border-radius: 100px; padding: 0.9rem 1.75rem; min-height: 52px;
  transition: transform 0.2s var(--ease), background 0.2s;
}
.gate__btn:hover { transform: scale(1.03); }
.gate__error {
  font-size: 0.78rem; color: var(--accent); font-weight: 600;
  min-height: 1.2em; opacity: 0; transition: opacity 0.2s;
}
.gate__error.is-visible { opacity: 1; }
.gate.is-shake .gate__form { animation: shake 0.4s var(--ease); }
@keyframes shake {
  0%,100% { transform: translateX(0); }
  20%,60% { transform: translateX(-8px); }
  40%,80% { transform: translateX(8px); }
}

/* ===========================
   MARQUEE
   =========================== */
.marquee-wrap { overflow: hidden; background: var(--ink); padding: 14px 0; position: relative; z-index: 10; }
.marquee-track { display: flex; width: max-content; animation: marquee 26s linear infinite; }
.marquee-item {
  font-family: var(--font-display); font-size: clamp(0.75rem, 1.2vw, 0.9rem);
  font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--paper); white-space: nowrap; padding: 0 2rem;
}
.marquee-item--accent { color: var(--accent); }
.marquee-sep { color: var(--paper); opacity: 0.3; align-self: center; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ===========================
   NAV + BURGER
   =========================== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; justify-content: space-between; align-items: center;
  padding: 1.15rem var(--gutter); mix-blend-mode: difference;
}
.nav__logo {
  font-family: var(--font-display); font-size: 0.8rem; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--paper); text-decoration: none;
}
.nav__label {
  font-family: var(--font-display); font-size: 0.72rem; font-weight: 500;
  letter-spacing: 0.08em; color: var(--paper); opacity: 0.7;
}
.nav__burger {
  display: none; flex-direction: column; justify-content: center; gap: 5px;
  width: 36px; height: 36px; background: none; border: none; cursor: pointer; padding: 4px; z-index: 110;
}
.nav__burger-line {
  display: block; width: 22px; height: 2px; background: var(--paper); border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.3s; transform-origin: center;
}
.nav__burger.is-open .nav__burger-line:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__burger.is-open .nav__burger-line:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav__burger.is-open .nav__burger-line:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===========================
   MOBILE MENU
   =========================== */
.mobile-menu {
  position: fixed; inset: 0; z-index: 200; background: var(--ink);
  display: flex; flex-direction: column; padding: 1.15rem clamp(1.5rem, 6vw, 2.5rem);
  transform: translateX(100%); transition: transform 0.45s var(--ease); pointer-events: none;
}
.mobile-menu.is-open { transform: translateX(0); pointer-events: all; }
.mobile-menu__header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 3rem; }
.mobile-menu__logo {
  font-family: var(--font-display); font-size: 0.78rem; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--paper); opacity: 0.5;
}
.mobile-menu__close {
  background: none; border: none; color: var(--paper); font-size: 1.1rem; cursor: pointer;
  opacity: 0.6; width: 36px; height: 36px; display: flex; align-items: center; justify-content: center;
}
.mobile-menu__nav { display: flex; flex-direction: column; flex: 1; }
.mobile-menu__link {
  font-family: var(--font-display); font-size: clamp(1.4rem, 7vw, 2.2rem); font-weight: 900;
  text-transform: uppercase; letter-spacing: -0.02em; line-height: 1; color: var(--paper);
  text-decoration: none; padding: 0.75rem 0; border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: color 0.2s;
}
.mobile-menu__link:hover { color: var(--accent); }
.mobile-menu__footer { padding-top: 2.5rem; display: flex; flex-direction: column; gap: 1.25rem; }
.mobile-menu__tagline {
  font-size: 0.7rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--paper); opacity: 0.3;
}
.mobile-menu__cta {
  display: inline-flex; align-items: center; gap: 0.75rem; background: var(--paper); color: var(--ink);
  font-family: var(--font-display); font-size: 0.85rem; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; text-decoration: none; padding: 1rem 2rem; border-radius: 100px;
  min-height: 52px; width: fit-content; transition: opacity 0.2s;
}
.mobile-menu__cta:hover { opacity: 0.85; }

/* ===========================
   HERO — ink dramático + foto
   =========================== */
.hero {
  min-height: 100vh; background: var(--ink); color: var(--paper);
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: var(--section-pad) var(--gutter); position: relative; overflow: hidden;
}
.hero__photo {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  opacity: 0.28; filter: grayscale(1) contrast(1.05); z-index: 0;
}
.hero__inner { position: relative; z-index: 2; max-width: var(--maxw); width: 100%; margin: 0 auto; }
.hero__eyebrow {
  font-size: 0.75rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--paper); opacity: 0.55; margin-bottom: 1.5rem;
}
.hero__headline { color: var(--paper); margin-bottom: 2rem; }
.hero__l1, .hero__l2 { display: block; line-height: 0.95; white-space: nowrap; letter-spacing: -0.03em; }
.hero__l1 { font-family: var(--font-display); font-weight: 900; text-transform: uppercase; font-size: clamp(1.4rem, 7vw, 7.5rem); }
.hero__l2 { font-family: var(--font-serif); font-style: italic; text-transform: uppercase; font-size: clamp(1.4rem, 7vw, 7.5rem); letter-spacing: -0.02em; }
.hero__sub {
  max-width: 46ch; font-size: var(--fs-lead); font-weight: 400; line-height: 1.6;
  color: var(--paper); opacity: 0.72; margin-bottom: 3rem;
}
.hero__cta {
  display: inline-flex; align-items: center; gap: 0.75rem; font-family: var(--font-display);
  font-size: 0.8rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--paper); text-decoration: none; border-bottom: 2px solid var(--paper);
  padding-bottom: 4px; transition: opacity 0.3s;
}
.hero__cta:hover { opacity: 0.6; }
.hero__meta {
  position: absolute; top: calc(var(--section-pad) + 0.25rem); right: var(--gutter); z-index: 2;
  font-size: 0.65rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase;
  text-align: right; color: var(--paper); opacity: 0.5;
}

/* ===========================
   CONTEXT / EL RETO — tarjetas numeradas
   =========================== */
.context { background: var(--paper); padding: var(--section-pad) var(--gutter); }
.context__inner { max-width: var(--maxw); margin: 0 auto; }
.context__headline { margin-bottom: 4rem; }
.context__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 2.5rem; }
.ctx-card { border-top: 2px solid var(--ink); padding-top: 1.5rem; }
.ctx-card__num {
  font-family: var(--font-serif); font-style: italic; font-size: 3rem; font-weight: 700;
  color: var(--accent); line-height: 1; margin-bottom: 0.75rem;
}
.ctx-card__title {
  font-family: var(--font-display); font-size: 1rem; font-weight: 800; text-transform: uppercase;
  letter-spacing: 0.04em; margin-bottom: 0.75rem;
}
.ctx-card__text { font-size: 0.9rem; line-height: 1.65; color: var(--muted); }
.context__quote { margin-top: 5rem; max-width: 62ch; }
.context__quote p { font-family: var(--font-serif); font-style: italic; opacity: 0.65; font-size: clamp(1.2rem, 2.5vw, 2rem); line-height: 1.3; }

/* ===========================
   DIAGNÓSTICO — split con contadores
   =========================== */
.diagnosis { display: grid; grid-template-columns: 1fr 1fr; min-height: 90vh; }
.diagnosis__left {
  background: var(--ink); color: var(--paper);
  padding: var(--section-pad) var(--gutter); display: flex; flex-direction: column; justify-content: space-between;
}
.diagnosis__left .section-label { color: var(--paper); opacity: 0.4; }
.diagnosis__right {
  background: var(--bone); padding: var(--section-pad) var(--gutter);
  display: flex; flex-direction: column; justify-content: center;
}
.stat { border-top: 2px solid var(--line-invert); padding-top: 1.25rem; margin-top: 1.5rem; }
.stat__num {
  font-family: var(--font-serif); font-style: italic; font-size: clamp(2.6rem, 5.5vw, 5rem);
  font-weight: 700; line-height: 1; color: var(--paper);
}
.stat__label { font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; margin-top: 0.4rem; opacity: 0.6; }
.diagnosis__body { max-width: 46ch; }
.diagnosis__body p { font-size: var(--fs-lead); line-height: 1.65; margin-top: 1.25rem; }
.diagnosis__body p:first-child { margin-top: 0; }
.diagnosis__body strong { font-weight: 700; }

/* ===========================
   BUILD / QUÉ CONSTRUIMOS — grid de módulos sobre negro
   =========================== */
.build { background: var(--ink); color: var(--paper); padding: var(--section-pad) var(--gutter); }
.build__inner { max-width: var(--maxw); margin: 0 auto; }
.build .section-label { color: var(--paper); opacity: 0.4; }
.build__headline { color: var(--paper); margin-bottom: 1rem; }
.build__intro { color: var(--paper); opacity: 0.6; max-width: 52ch; margin-bottom: 3.5rem; font-size: var(--fs-lead); line-height: 1.6; }
.build__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.5px; background: var(--line-invert); }
.build-card {
  background: var(--ink); padding: 2rem 1.6rem; border: 1px solid var(--line-invert);
  transition: background 0.3s var(--ease);
}
.build-card:hover { background: #171717; }
.build-card__tag { font-size: 0.62rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); margin-bottom: 1rem; }
.build-card__title { font-family: var(--font-display); font-size: 1.05rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.02em; margin-bottom: 0.75rem; }
.build-card__text { font-size: 0.85rem; line-height: 1.6; opacity: 0.62; }

/* ===========================
   APPROACH / CÓMO LO HACEMOS
   =========================== */
.approach { background: var(--bone); padding: var(--section-pad) var(--gutter); }
.approach__inner { max-width: var(--maxw); margin: 0 auto; }
.approach__headline { margin-bottom: 3.5rem; }
.approach__list { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2.5rem 3rem; }
.approach__item { border-left: 2px solid var(--ink); padding-left: 1.5rem; }
.approach__item h3 { font-family: var(--font-display); font-size: 0.95rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.03em; margin-bottom: 0.6rem; }
.approach__item p { font-size: 0.88rem; line-height: 1.6; color: var(--muted); }
.approach__item .tag { color: var(--accent); font-weight: 700; }

/* ===========================
   MIGRATION — callout band
   =========================== */
.migration { background: var(--paper); padding: var(--section-pad) var(--gutter); }
.migration__inner { max-width: var(--maxw); margin: 0 auto; }
.migration__band {
  border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: clamp(2rem, 5vw, 3.5rem); display: grid; grid-template-columns: 1fr 1.2fr; gap: 3rem; align-items: center;
}
.migration__band h2 { font-family: var(--font-display); font-size: var(--fs-h2); font-weight: 900; text-transform: uppercase; line-height: 1; letter-spacing: -0.02em; }
.migration__band .serif-display { font-size: clamp(1.6rem, 3.5vw, 2.6rem); }
.migration__points { list-style: none; display: flex; flex-direction: column; gap: 1rem; }
.migration__points li { font-size: 0.92rem; line-height: 1.55; padding-left: 1.5rem; position: relative; }
.migration__points li::before { content: '→'; position: absolute; left: 0; color: var(--accent); font-weight: 700; }
.migration__warn { margin-top: 1rem; font-size: 0.82rem; color: var(--muted); border-top: 1px solid var(--line); padding-top: 1rem; }

/* ===========================
   PHASES — split-screen
   =========================== */
.phase { display: grid; grid-template-columns: 1fr 1fr; min-height: 100vh; }
.phase__left {
  background: var(--bone); padding: var(--section-pad) var(--gutter);
  display: flex; flex-direction: column; justify-content: space-between;
}
.phase__right {
  background: var(--ink); color: var(--paper); padding: var(--section-pad) var(--gutter);
  display: flex; flex-direction: column; justify-content: center;
}
.phase__right .section-label { color: var(--paper); opacity: 0.5; }
/* Fase 2: invertimos (contenido claro / número oscuro) */
.phase--2 .phase__left { background: var(--ink); color: var(--paper); }
.phase--2 .phase__left .section-label { color: var(--paper); opacity: 0.5; }
.phase--2 .phase__right { background: var(--bone); color: var(--ink); }
.phase__num {
  font-family: var(--font-serif); font-style: italic; font-size: clamp(6rem, 14vw, 13rem);
  font-weight: 700; line-height: 0.85; color: var(--ink);
}
.phase--2 .phase__left .phase__num { color: var(--paper); }
.phase__title-block { margin-bottom: 2rem; }
.phase__phase-label { font-size: 0.7rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; opacity: 0.5; margin-bottom: 0.75rem; }
.phase__headline { font-family: var(--font-display); font-size: clamp(1.6rem, 3.5vw, 3rem); font-weight: 900; text-transform: uppercase; line-height: 1; letter-spacing: -0.02em; }
.phase__subtitle { font-family: var(--font-serif); font-style: italic; font-size: clamp(1rem, 2vw, 1.5rem); opacity: 0.7; margin-top: 0.5rem; }
.phase__deliverables { list-style: none; display: flex; flex-direction: column; gap: 0.6rem; margin-top: 2rem; }
.phase__deliverables li { font-size: 0.88rem; line-height: 1.5; padding-left: 1.25rem; position: relative; opacity: 0.85; }
.phase__deliverables li::before { content: '/'; position: absolute; left: 0; font-weight: 700; color: var(--accent); }
.phase__duration {
  display: inline-flex; align-items: center; font-size: 0.7rem; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; background: var(--accent); color: var(--accent-ink); padding: 0.5rem 1rem;
  border-radius: 100px; margin-top: 2rem; min-height: 34px;
}

/* ===========================
   TIMELINE
   =========================== */
.timeline { background: var(--bone); padding: var(--section-pad) var(--gutter); overflow: hidden; }
.timeline__inner { max-width: var(--maxw); margin: 0 auto; }
.timeline__headline { margin-bottom: 4rem; }
.timeline__track { position: relative; display: grid; grid-template-columns: repeat(3, 1fr); }
.timeline__track::before { content: ''; position: absolute; top: 16px; left: 0; right: 0; height: 2px; background: var(--ink); z-index: 0; }
.timeline__item { position: relative; padding-top: 3rem; padding-right: 1.5rem; }
.timeline__dot { position: absolute; top: 8px; left: 0; width: 18px; height: 18px; background: var(--accent); border: 2px solid var(--ink); border-radius: 50%; z-index: 1; }
.timeline__phase { font-size: 0.65rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; opacity: 0.45; margin-bottom: 0.4rem; }
.timeline__name { font-family: var(--font-display); font-size: clamp(0.85rem, 1.5vw, 1.1rem); font-weight: 800; text-transform: uppercase; margin-bottom: 0.5rem; }
.timeline__duration { font-family: var(--font-serif); font-style: italic; font-size: clamp(1.5rem, 3vw, 2.5rem); font-weight: 700; line-height: 1; color: var(--ink); margin-bottom: 0.5rem; }
.timeline__desc { font-size: 0.8rem; line-height: 1.55; opacity: 0.6; max-width: 24ch; }

/* ===========================
   ABOUT BACKERY
   =========================== */
.about { background: var(--ink); color: var(--paper); padding: var(--section-pad) var(--gutter); }
.about__inner { max-width: var(--maxw); margin: 0 auto; }
.about .section-label { color: var(--paper); opacity: 0.35; }
.about__headline { color: var(--paper); margin-bottom: 4rem; }
.about__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start; }
.about__text { font-size: var(--fs-lead); line-height: 1.7; opacity: 0.75; max-width: 52ch; }
.about__text + .about__text { margin-top: 1.5rem; }
.about__stats { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.about__stat { border-top: 1px solid var(--line-invert); padding-top: 1.25rem; }
.about__stat-num { font-family: var(--font-serif); font-style: italic; font-size: clamp(2.5rem, 4vw, 4rem); font-weight: 700; color: var(--paper); line-height: 1; margin-bottom: 0.3rem; }
.about__stat-label { font-size: 0.78rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; opacity: 0.45; }
.about__projects { margin-top: 4rem; border-top: 1px solid var(--line-invert); padding-top: 3rem; }
.about__projects-label { font-size: 0.7rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; opacity: 0.3; margin-bottom: 2rem; }
.about__project-list { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.about__project-tag {
  font-family: var(--font-display); font-size: 0.8rem; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; padding: 0.65rem 1.2rem; border: 1px solid var(--line-invert);
  border-radius: 100px; color: rgba(255,255,255,0.6); text-decoration: none; transition: all 0.25s;
  min-height: 44px; display: inline-flex; align-items: center;
}
.about__project-tag:hover { border-color: var(--paper); color: var(--paper); }

/* ===========================
   INVERSIÓN
   =========================== */
.inversion { background: var(--bone); padding: var(--section-pad) var(--gutter); }
.inversion__inner { max-width: var(--maxw); margin: 0 auto; }
.inversion__headline { margin-bottom: 1.5rem; }
.inversion__disclaimer {
  display: inline-flex; align-items: center; gap: 0.6rem; font-size: 0.72rem; font-weight: 700;
  letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent);
  border: 1px solid var(--accent); border-radius: 100px; padding: 0.5rem 1rem; margin-bottom: 3rem;
}
.inversion__table { width: 100%; border-collapse: collapse; }
.inversion__table th {
  text-align: left; font-size: 0.68rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase;
  opacity: 0.4; padding: 0 0 1.25rem; border-bottom: 2px solid var(--ink);
}
.inversion__table td { padding: 1.5rem 0; border-bottom: 1px solid var(--line); vertical-align: top; }
.inversion__table td:first-child {
  font-family: var(--font-display); font-size: 0.7rem; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; opacity: 0.4; padding-right: 2rem; white-space: nowrap;
}
.inversion__phase-name { font-family: var(--font-display); font-size: clamp(1.1rem, 2vw, 1.6rem); font-weight: 900; text-transform: uppercase; letter-spacing: -0.01em; margin-bottom: 0.4rem; }
.inversion__phase-desc { font-size: 0.82rem; opacity: 0.6; line-height: 1.5; max-width: 44ch; }
.inversion__price { font-family: var(--font-serif); font-style: italic; font-size: clamp(1.6rem, 2.6vw, 2.6rem); font-weight: 700; text-align: right; white-space: nowrap; }
.inversion__price--tbd { opacity: 0.35; font-size: clamp(1rem, 2vw, 1.6rem); }
.inversion__note { margin-top: 1.75rem; font-size: 0.82rem; opacity: 0.55; max-width: 60ch; line-height: 1.6; }

/* ===========================
   CTA
   =========================== */
.cta-section { min-height: 100vh; display: grid; grid-template-columns: 1fr 1fr; overflow: hidden; }
.cta-section__left { background: var(--ink); color: var(--paper); display: flex; flex-direction: column; justify-content: space-between; padding: var(--section-pad) var(--gutter); }
.cta-section__top-row { display: flex; justify-content: space-between; align-items: flex-start; }
.cta-section__agency { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--paper); opacity: 0.5; }
.cta-section__right { position: relative; overflow: hidden; }
.cta-section__photo { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; filter: grayscale(1) contrast(1.05); }
.cta-section__headline { font-family: var(--font-serif); font-style: italic; font-weight: 700; font-size: clamp(3rem, 5.5vw, 7rem); line-height: 0.9; letter-spacing: -0.03em; color: var(--paper); margin-bottom: 2.5rem; }
.cta-section__sub { font-size: var(--fs-lead); opacity: 0.7; max-width: 42ch; line-height: 1.6; margin-bottom: 3rem; color: var(--paper); }
.cta-btn {
  display: inline-flex; align-items: center; gap: 1rem; background: var(--paper); color: var(--ink);
  font-family: var(--font-display); font-size: 0.85rem; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; text-decoration: none; padding: 1rem 2rem; border-radius: 100px; min-height: 52px;
  transition: transform 0.3s var(--ease), background 0.3s;
}
.cta-btn:hover { transform: scale(1.03); background: #ececec; }
.cta-btn__arrow { font-size: 1.1rem; transition: transform 0.3s; }
.cta-btn:hover .cta-btn__arrow { transform: translateX(4px); }
.cta-section__contact { margin-top: 2rem; font-size: 0.85rem; opacity: 0.55; color: var(--paper); }
.cta-section__contact a { color: var(--paper); font-weight: 700; }

/* ===========================
   FOOTER
   =========================== */
.footer { background: var(--ink); padding: 2.5rem var(--gutter); display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; }
.footer__logo { font-family: var(--font-display); font-size: 0.75rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--paper); opacity: 0.4; }
.footer__copy { font-size: 0.72rem; color: var(--paper); opacity: 0.25; letter-spacing: 0.04em; }

/* ===========================
   SCROLL REVEAL
   =========================== */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ===========================
   RESPONSIVE — TABLET (≤ 900px)
   =========================== */
@media (max-width: 900px) {
  .nav__label { display: none; }
  .nav__burger { display: flex; }
  .hero__meta { display: none; }

  .diagnosis, .phase, .migration__band, .cta-section { grid-template-columns: 1fr; min-height: auto; }

  /* Fase 1/3-style: número primero por defecto → poner contenido primero */
  .phase:not(.phase--2) .phase__left { order: 2; }
  .phase:not(.phase--2) .phase__right { order: 1; }
  .phase--2 .phase__left { order: 1; }
  .phase--2 .phase__right { order: 2; }

  .diagnosis__left, .diagnosis__right, .phase__left, .phase__right,
  .cta-section__left { padding: 3rem 1.5rem; }
  .phase__num { font-size: clamp(5rem, 18vw, 10rem); }

  .about__grid { grid-template-columns: 1fr; gap: 3rem; }
  .timeline__track { grid-template-columns: 1fr 1fr; gap: 3rem 2rem; }
  .timeline__track::before { display: none; }
  .migration__band { gap: 2rem; }
  .cta-section__right { min-height: 300px; }
  .inversion__table th:first-child, .inversion__table td:first-child { display: none; }
  .footer { flex-direction: column; align-items: center; text-align: center; gap: 0.75rem; }
}

/* ===========================
   RESPONSIVE — MOBILE (≤ 600px)
   =========================== */
@media (max-width: 600px) {
  .hero { padding: 5.5rem 1.25rem 4rem; min-height: 100svh; }
  .hero__l1, .hero__l2 { font-size: clamp(1.3rem, 6.2vw, 2.6rem); }
  .hero__sub { max-width: 100%; }
  .hero__cta { padding: 0.9rem 0; min-height: 44px; }

  .section-label { margin-bottom: 2rem; }
  .context__grid, .approach__list { gap: 2rem; }
  .diagnosis__left, .diagnosis__right, .phase__left, .phase__right, .cta-section__left { padding: 2.5rem 1.25rem; }
  .phase__num { font-size: clamp(4rem, 20vw, 7rem); }
  .build__grid { grid-template-columns: 1fr; }
  .about__stats { grid-template-columns: 1fr 1fr; gap: 1.5rem; }

  .timeline__track { grid-template-columns: 1fr; }
  .timeline__item { padding-top: 2.5rem; padding-right: 0; }

  /* Inversión: tabla → tarjetas */
  .inversion__table, .inversion__table tbody, .inversion__table tr, .inversion__table td { display: block; }
  .inversion__table thead { display: none; }
  .inversion__table tbody tr { border-bottom: 2px solid var(--line); padding: 1.5rem 0; }
  .inversion__table td { padding: 0.2rem 0; border-bottom: none; }
  .inversion__price { text-align: left; margin-top: 0.75rem; }

  .cta-section { grid-template-columns: 1fr; min-height: 100svh; }
  .cta-section__right { min-height: 280px; }
  .cta-btn { width: 100%; max-width: 320px; justify-content: center; }
  .migration__band { padding: 1.75rem 1.25rem; }
  .footer { flex-direction: column; align-items: center; text-align: center; padding: 2rem 1.25rem; gap: 0.5rem; }
}

/* ===========================
   ACCESIBILIDAD — reduced motion
   =========================== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
  .marquee-track { animation: none; }
  * { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}