/* =============================================================
   BDGP — Landing Campaña 2 · Construcción con Sistema
   Estética: blanco editorial + líneas azules (blueprint)
   Tipografía: Poppins · JetBrains Mono
   ============================================================= */
:root {
  --paper:      #FFFFFF;
  --paper-2:    #F1F7FB;   /* secciones alternas */
  --paper-3:    #E7F1F8;   /* sutil */
  --ink:        #0A2A42;   /* títulos */
  --ink-soft:   #3D5565;   /* cuerpo */
  --ink-mute:   #64808F;   /* apoyo */
  --blue:       #0A4A79;   /* línea/acento estructural */
  --blue-deep:  #042C53;
  --blue-mid:   #1789B8;
  --cyan:       #27B8D6;   /* acento */
  --amber:      #F0A44B;   /* solo gráfica */
  --ok:         #16A34A;
  --line:       rgba(10, 74, 121, 0.16);   /* hairline azul */
  --line-soft:  rgba(10, 74, 121, 0.09);
  --line-strong:rgba(10, 74, 121, 0.34);
  --line-cyan:  rgba(39, 184, 214, 0.55);

  --sans: "Poppins", sans-serif;
  --mono: "Poppins", sans-serif; /* todo Poppins (instrucción 2026-07-03) */
  --ease-out: cubic-bezier(0.25, 0.1, 0.25, 1);
  --gutter: clamp(1.25rem, 5vw, 4rem);
  --section-pad: clamp(3rem, 6vw, 4.5rem);
}

/* =============================================================
   Reset & base
   ============================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink-soft);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  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; }
h1, h2, h3, h4 { text-wrap: balance; line-height: 1.04; letter-spacing: -0.02em; color: var(--ink); font-weight: 700; text-transform: uppercase; }
::selection { background: var(--cyan); color: var(--blue-deep); }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; border-radius: 4px; }

.skip-link { position: fixed; top: -100px; left: 1rem; padding: .6rem 1rem; background: var(--blue); color: #fff; z-index: 9999; border-radius: 8px; font-weight: 500; }
.skip-link:focus { top: 1rem; }

/* =============================================================
   Utilidades
   ============================================================= */
.container { width: min(1200px, 100% - var(--gutter) * 2); margin-inline: auto; }
.section { padding-block: var(--section-pad); position: relative; }
.section.alt { background: var(--paper-2); }

.grad-text {
  background: linear-gradient(178deg, #0A2A42 0%, #1789B8 96%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.mega { font-size: clamp(1.9rem, 4.6vw, 3.5rem); line-height: 1.05; font-weight: 700; }
/* Subtítulo de refuerzo bajo un título mega */
.lead-sub { font-size: clamp(1.05rem, 1.9vw, 1.32rem); font-weight: 400; line-height: 1.5; text-wrap: balance; max-width: 52ch; }
/* Palabra resaltada (funciona en texto normal y dentro de grad-text) */
.hl { color: var(--cyan); -webkit-text-fill-color: var(--cyan); font-weight: 600; }

.kicker {
  font-family: var(--sans); font-size: .66rem; letter-spacing: .14em;
  text-transform: uppercase; color: var(--blue); display: inline-flex;
  align-items: center; font-weight: 600;
  background: rgba(39, 184, 214, .1); border: 1px solid rgba(39, 184, 214, .35);
  padding: .42rem .95rem; border-radius: 999px;
}
.em { color: var(--blue); font-style: normal; font-weight: 500; }

.section-head { max-width: 820px; margin-bottom: clamp(1.4rem, 3vw, 2.2rem); }
.section-head--center { margin-inline: auto; text-align: center; }
.section-head--center p { margin-inline: auto; }
.section-head h2 { margin-top: .9rem; }
.section-head p { margin-top: 1rem; font-size: 1rem; max-width: 62ch; color: var(--ink-soft); }
.section-head p strong { color: var(--ink); font-weight: 600; }

/* Reveal defensivo */
.reveal { opacity: 1; transform: none; }
html.js .reveal { opacity: 0; transform: translateY(28px); }
html.js .reveal.is-in { opacity: 1; transform: none; transition: opacity .8s var(--ease-out), transform .8s var(--ease-out); }

/* =============================================================
   Nav + línea de progreso
   ============================================================= */
.nav { position: fixed; inset: 0 0 auto 0; z-index: 100; transition: background .4s var(--ease-out), border-color .4s; border-bottom: 1px solid transparent; }
.nav.is-solid { background: rgba(255, 255, 255, .88); backdrop-filter: blur(12px); border-bottom-color: var(--line); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; padding-block: 1rem; }
.nav-brand { display: inline-flex; align-items: center; gap: .65rem; font-weight: 800; font-size: 1.2rem; letter-spacing: .1em; color: var(--ink); text-transform: uppercase; }
.nav-brand img { height: 44px; width: auto; flex: none; }
.nav-brand small { display: block; font-family: var(--mono); font-size: .46rem; letter-spacing: .24em; color: var(--ink-mute); font-weight: 400; }
.nav-links { display: none; gap: 2rem; font-size: .82rem; color: var(--ink-soft); text-transform: uppercase; letter-spacing: .1em; font-weight: 500; }
.nav-links a { transition: color .2s; }
.nav-links a:hover { color: var(--blue); }
.progress-line { position: fixed; top: 0; left: 0; height: 2px; width: 0%; background: var(--cyan); z-index: 101; }

/* =============================================================
   Botones
   ============================================================= */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .55rem;
  padding: .95rem 2rem; border-radius: 999px; font-weight: 600; font-size: .82rem;
  letter-spacing: .12em; text-transform: uppercase;
  transition: transform .35s var(--ease-out), box-shadow .35s, background .35s, color .35s, border-color .35s;
  will-change: transform;
}
.btn:active { transform: scale(.97); }
.btn-grad {
  color: #fff;
  background: linear-gradient(123deg, #042C53 6%, #0A4A79 40%, #1789B8 74%, #27B8D6 100%);
  box-shadow: 0 6px 20px rgba(10, 74, 121, .22);
}
.btn-grad:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(39, 184, 214, .32); }
.btn-ghost { border: 1.5px solid var(--blue); color: var(--blue); }
.btn-ghost:hover { background: rgba(10, 74, 121, .06); transform: translateY(-2px); }
.btn-sm { padding: .62rem 1.3rem; font-size: .72rem; }
.btn svg { width: 16px; height: 16px; flex: none; }

/* =============================================================
   Hero (blueprint)
   ============================================================= */
.hero { position: relative; overflow: clip; padding: clamp(5.5rem, 9vh, 7rem) 0 clamp(2.5rem, 5vw, 3.5rem); }
/* Ondas suaves difuminadas (sin cuadrícula) */
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(640px 420px at 12% 15%, rgba(39, 184, 214, .14), transparent 65%),
    radial-gradient(760px 520px at 88% 5%, rgba(10, 74, 121, .1), transparent 65%),
    radial-gradient(560px 400px at 65% 90%, rgba(39, 184, 214, .08), transparent 70%);
}
/* Brillo azul interactivo que sigue el cursor (curvo y difuso) */
.hero-grid {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background: radial-gradient(320px circle at var(--mx, 50%) var(--my, 30%), rgba(39, 184, 214, .16), transparent 70%);
  filter: blur(18px);
  transition: opacity .5s;
}
@media (hover: none) { .hero-grid { opacity: .4; } }

/* Video del hero (media grande, estilo referencia) */
.hero-video {
  position: relative; width: 100%; z-index: 1;
  aspect-ratio: 16 / 9;
  border-radius: clamp(18px, 3vw, 30px); overflow: hidden;
  border: 1px solid var(--line-strong); background: var(--paper-2);
  box-shadow: 0 24px 60px rgba(10, 42, 66, .14);
}
@media (min-width: 900px) { .hero-video { aspect-ratio: 21 / 9; } }

/* Tarjeta blanca encimada sobre el media (estilo referencia) */
.hero-card {
  position: relative; z-index: 2;
  width: min(1040px, 100%); margin: clamp(-3.5rem, -6vw, -5rem) auto 0;
  background: var(--paper); border: 1px solid var(--line); border-radius: 22px;
  padding: clamp(1.5rem, 4vw, 2.6rem);
  box-shadow: 0 30px 70px rgba(10, 42, 66, .14);
  display: grid; gap: 1.6rem;
}
@media (min-width: 900px) { .hero-card { grid-template-columns: 1.4fr 1fr; align-items: center; gap: clamp(2rem, 4vw, 3.5rem); } }
.hero-title { font-size: clamp(1.7rem, 3.6vw, 2.9rem); line-height: 1.1; letter-spacing: -0.01em; font-weight: 700; margin-top: 1rem; }
.hero-tag { font-weight: 300; line-height: 1.6; color: var(--ink-soft); font-size: .95rem; }
.hero-tag strong { font-weight: 600; color: var(--ink); }
.hero-actions { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: 1.1rem; }
.hero-note { margin-top: .9rem; font-size: .7rem; color: var(--ink-mute); letter-spacing: .03em; }
.hero-video img, .hero-video video, .hero-video iframe { width: 100%; height: 100%; object-fit: cover; border: 0; }
.hero-video::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(6, 18, 29, .05), rgba(6, 18, 29, .32)); pointer-events: none; }
.hero-video-play {
  position: absolute; inset: 0; margin: auto; z-index: 2;
  width: clamp(58px, 8vw, 74px); height: clamp(58px, 8vw, 74px); border-radius: 50%;
  background: rgba(255, 255, 255, .95); color: var(--blue);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 12px 40px rgba(10, 74, 121, .3); transition: transform .35s var(--ease-out);
}
.hero-video-play:hover { transform: scale(1.08); }
.hero-video-play svg { width: 34%; height: 34%; margin-left: 8%; }
.hero-video-note {
  position: absolute; left: .9rem; bottom: .9rem; z-index: 2;
  font-family: var(--mono); font-size: .58rem; letter-spacing: .12em; text-transform: uppercase;
  color: #fff; background: rgba(10, 42, 66, .55); padding: .32rem .6rem; border-radius: 6px;
}
/* Badge centrado (placeholder de video, no clicable) */
.hero-video-badge {
  position: absolute; inset: 0; margin: auto; z-index: 2;
  width: fit-content; height: fit-content;
  display: inline-flex; align-items: center; gap: .5rem;
  font-family: var(--mono); font-size: .66rem; letter-spacing: .1em; text-transform: uppercase;
  color: #fff; background: rgba(10, 42, 66, .62); padding: .55rem 1rem; border-radius: 999px;
}
.hero-video-badge svg { width: 14px; height: 14px; }

/* =============================================================
   Logos (prueba social)
   ============================================================= */
.logos { padding: clamp(2rem, 4.5vw, 3rem) 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--paper); }
.logos-label { text-align: center; font-family: var(--mono); font-size: .66rem; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-mute); }
.logos-eg { color: var(--cyan); opacity: .7; }
.logos-track { display: flex; flex-wrap: wrap; gap: 1rem 2.4rem; justify-content: center; align-items: center; margin-top: 1.5rem; }
.logo-ex {
  display: inline-flex; align-items: center; gap: .55rem;
  font-weight: 600; font-size: .92rem; letter-spacing: .01em; color: var(--blue);
  opacity: .5; filter: grayscale(.2); transition: opacity .3s;
}
.logo-ex:hover { opacity: .8; }
.logo-ex svg { width: 26px; height: 26px; flex: none; }

/* =============================================================
   Barra de credibilidad
   ============================================================= */
.cred-bar { padding: clamp(2rem, 4.5vw, 3rem) 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--paper); }
.cred-metrics { display: grid; gap: 1.4rem; grid-template-columns: 1fr; text-align: center; }
.cred-metric strong { display: block; font-size: clamp(1.4rem, 3.2vw, 2.1rem); font-weight: 800; color: var(--ink); letter-spacing: -0.02em; line-height: 1.05; }
.cred-metric span { display: block; margin-top: .45rem; font-size: .78rem; color: var(--ink-mute); }
.cred-logos { margin-top: 2rem; padding-top: 1.6rem; border-top: 1px solid var(--line); }
.cred-logos-label { text-align: center; font-size: .64rem; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-mute); }

/* Costo de la inacción */
.problem-cost { margin-top: 1.2rem; font-weight: 300; font-size: .95rem; color: var(--ink-soft); border-left: 3px solid var(--amber); padding-left: 1rem; }

/* Entregables tangibles */
.deliverables { margin-top: clamp(2.5rem, 5vw, 3.5rem); background: var(--paper); border: 1px solid var(--line); border-radius: 22px; padding: clamp(1.4rem, 3vw, 2rem); }
.deliverables-label { font-size: .7rem; letter-spacing: .12em; text-transform: uppercase; color: var(--blue); font-weight: 600; }
.deliverables-grid { display: grid; gap: .8rem 1.5rem; margin-top: 1.2rem; grid-template-columns: 1fr; }
.deliverable { display: flex; align-items: center; gap: .6rem; font-size: .92rem; font-weight: 500; color: var(--ink); }
.deliverable svg { width: 18px; height: 18px; flex: none; color: var(--cyan); }

/* Casos de estudio */
.cases { display: grid; gap: 1.4rem; }
.case { background: var(--paper); border: 1px solid var(--line); border-radius: 22px; overflow: hidden; }
.case-media { position: relative; aspect-ratio: 16 / 10; }
.case-media img { width: 100%; height: 100%; object-fit: cover; }
.case-badge { position: absolute; top: .9rem; left: .9rem; font-size: .62rem; font-weight: 700; letter-spacing: .1em; color: #fff; background: var(--blue); padding: .3rem .7rem; border-radius: 999px; }
.case-body { padding: clamp(1.3rem, 3vw, 1.8rem); }
.case-body h3 { font-size: clamp(1.2rem, 2.4vw, 1.6rem); font-weight: 700; }
.case-role { margin-top: .3rem; font-size: .8rem; color: var(--ink-mute); font-weight: 500; }
.case-facts { margin-top: 1.2rem; display: grid; gap: .9rem; }
.case-facts > div { display: grid; gap: .2rem; }
.case-facts dt { font-size: .64rem; letter-spacing: .12em; text-transform: uppercase; color: var(--blue); font-weight: 600; }
.case-facts dd { font-size: .92rem; font-weight: 300; color: var(--ink-soft); }

@media (min-width: 600px) {
  .cred-metrics { grid-template-columns: repeat(2, 1fr); }
  .deliverables-grid { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 720px) { .cases { grid-template-columns: 1fr 1fr; } }
@media (min-width: 900px) {
  .cred-metrics { grid-template-columns: repeat(4, 1fr); }
  .deliverables-grid { grid-template-columns: repeat(4, 1fr); }
}

/* =============================================================
   Stats (caja de líneas azules)
   ============================================================= */
.hero-stats {
  display: grid; grid-template-columns: 1fr; gap: 1px; background: var(--line);
  border: 1px solid var(--line); border-radius: 16px; overflow: hidden;
}
.stat { background: var(--paper); padding: 1.3rem 1.4rem 1.5rem; }
.stat-num { font-weight: 700; font-size: clamp(1.7rem, 3.4vw, 2.4rem); color: var(--ink); line-height: 1; letter-spacing: -0.02em; }
.stat-num .u { color: var(--cyan); }
.stat-label { margin-top: .35rem; font-size: .8rem; color: var(--ink-mute); max-width: 26ch; font-weight: 400; }
.stat-src { grid-column: 1 / -1; background: var(--paper); padding: .7rem 1.4rem; font-family: var(--mono); font-size: .6rem; letter-spacing: .08em; color: var(--ink-mute); border-top: 1px solid var(--line); }

/* =============================================================
   Problema + gráfica
   ============================================================= */
.char-reveal { font-size: clamp(1.05rem, 1.9vw, 1.4rem); font-weight: 500; line-height: 1.5; color: var(--ink); max-width: 52ch; margin-top: 2rem; }
.char-reveal .ch { opacity: .16; }
html.no-js .char-reveal .ch, html:not(.js) .char-reveal .ch { opacity: 1; }
.problem-copy { max-width: 66ch; margin-top: 1.6rem; }
.problem-copy p { font-weight: 300; font-size: clamp(.95rem, 1.5vw, 1.08rem); }
.problem-copy strong { color: var(--ink); font-weight: 600; }

.baseline-fig { margin-top: clamp(2rem, 4vw, 3rem); background: var(--paper); border: 1px solid var(--line); border-radius: 22px; padding: clamp(1.2rem, 3vw, 2rem); box-shadow: 0 18px 50px rgba(10, 42, 66, .06); max-width: 900px; margin-inline: auto; }
.baseline-svg { width: 100%; height: auto; }
.baseline-svg text { font-family: var(--mono); font-size: 11.5px; letter-spacing: .06em; }
.baseline-svg .lbl-base { fill: var(--ink-mute); }
.baseline-svg .lbl-dev { fill: #C77A22; }
.baseline-svg .lbl-sys { fill: var(--blue); }
.baseline-caption { display: flex; flex-wrap: wrap; gap: 1.2rem; margin-top: 1rem; font-family: var(--mono); font-size: .64rem; letter-spacing: .06em; color: var(--ink-mute); }
.baseline-caption span { display: inline-flex; align-items: center; gap: .45rem; }
.baseline-caption i { width: 18px; height: 2px; display: inline-block; }

/* =============================================================
   Solución · CMS + frentes
   ============================================================= */
.cms-card {
  background: var(--paper); border: 1.5px solid var(--blue); border-radius: 24px;
  padding: clamp(1.6rem, 4vw, 2.6rem); position: relative; overflow: hidden;
  box-shadow: 0 18px 50px rgba(10, 74, 121, .08);
}
.cms-card::before { content: ""; position: absolute; inset: 0 auto 0 0; width: 5px; background: linear-gradient(180deg, var(--cyan), var(--blue)); }
.seal { display: inline-flex; align-items: center; gap: .55rem; font-family: var(--mono); font-size: .72rem; letter-spacing: .1em; color: var(--blue); border: 1px solid var(--line-strong); border-radius: 999px; padding: .55rem 1rem; }
.seal svg { width: 15px; height: 15px; color: var(--cyan); }
.cms-lead { margin-top: 1.3rem; font-size: clamp(1.05rem, 2vw, 1.35rem); font-weight: 500; color: var(--ink); max-width: 44ch; }
.cms-feats { display: grid; gap: .8rem; margin-top: 1.4rem; }
@media (min-width: 820px) { .cms-feats { grid-template-columns: repeat(3, 1fr); gap: 1.2rem; } }
.cms-feat { display: flex; gap: .7rem; align-items: flex-start; font-size: .95rem; font-weight: 300; color: var(--ink-soft); }
.cms-feat svg { width: 17px; height: 17px; flex: none; margin-top: .2rem; color: var(--cyan); }

.frentes { display: grid; gap: 1rem; }
.frente { background: var(--paper); border: 1px solid var(--line); border-radius: 20px; padding: clamp(1.4rem, 3vw, 1.9rem); transition: border-color .35s, transform .35s var(--ease-out), box-shadow .35s; }
.frente:hover { border-color: var(--line-cyan); transform: translateY(-4px); box-shadow: 0 16px 40px rgba(10, 74, 121, .08); }
.frente-num { font-family: var(--mono); font-weight: 500; font-size: 1.4rem; color: var(--cyan); letter-spacing: -0.02em; }
.frente h3 { margin-top: .5rem; font-size: clamp(1.05rem, 1.9vw, 1.3rem); font-weight: 600; }
.frente p { margin-top: .6rem; font-weight: 300; font-size: .92rem; line-height: 1.6; color: var(--ink-soft); }
.frente .em { display: block; margin-top: .7rem; font-size: .9rem; }
.frente-cta {
  display: flex; flex-direction: column; justify-content: center; gap: .5rem;
  background: linear-gradient(150deg, var(--blue-deep), var(--blue) 70%, var(--blue-mid));
  border-color: transparent; color: #fff;
}
.frente-cta:hover { transform: translateY(-4px); box-shadow: 0 18px 44px rgba(10, 74, 121, .28); }
.frente-cta span { font-weight: 300; color: rgba(255, 255, 255, .85); font-size: .95rem; }
.frente-cta strong { color: #fff; font-weight: 600; font-size: 1.05rem; letter-spacing: .01em; }

/* =============================================================
   Banda oscura de datos (estilo referencia)
   ============================================================= */
.stats-band {
  position: relative; overflow: clip; color: #fff;
  background: linear-gradient(135deg, var(--blue-deep) 0%, var(--blue) 100%);
  border-top: 3px solid var(--cyan);
  padding: clamp(2.4rem, 5vw, 3.6rem) 0;
}
.stats-band::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(560px 360px at 85% 15%, rgba(39, 184, 214, .22), transparent 65%),
    radial-gradient(480px 320px at 8% 95%, rgba(145, 225, 242, .12), transparent 65%);
  filter: blur(14px);
}
.stats-band .container { position: relative; }
.stats-band-grid { display: grid; gap: 1.6rem; }
.sb-num { font-weight: 800; font-size: clamp(2.6rem, 6vw, 4rem); line-height: 1; letter-spacing: -0.02em; color: #fff; }
.sb-num .u { color: var(--cyan); }
.sb-item p { margin-top: .4rem; font-size: .85rem; font-weight: 300; color: rgba(255,255,255,.78); max-width: 24ch; }
.sb-src { margin-top: 1.6rem; padding-top: .9rem; border-top: 1px solid rgba(255,255,255,.18); font-family: var(--mono); font-size: .6rem; letter-spacing: .08em; color: rgba(255,255,255,.55); }

/* =============================================================
   Split foto + texto (con tarjeta flotante, estilo referencia)
   ============================================================= */
.split { display: grid; gap: 2.2rem; align-items: center; }
.split-media { position: relative; margin-bottom: 1.6rem; }
.split-media img { width: 100%; aspect-ratio: 5 / 4; object-fit: cover; border-radius: 22px; border: 1px solid var(--line); }
.split-badge {
  position: absolute; left: -8px; bottom: -20px; z-index: 2;
  display: grid; gap: .25rem; padding: .95rem 1.25rem; border-radius: 16px;
  background: linear-gradient(150deg, var(--blue-deep), var(--blue) 90%);
  box-shadow: 0 18px 44px rgba(4, 44, 83, .35); border: 1px solid rgba(39,184,214,.35);
}
.sbg-tag { font-family: var(--mono); font-size: .58rem; letter-spacing: .16em; text-transform: uppercase; color: rgba(255,255,255,.75); }
.sbg-big { font-weight: 800; font-size: clamp(1.05rem, 2vw, 1.35rem); line-height: 1.1; text-transform: uppercase; letter-spacing: -0.01em; color: var(--amber); }
.sbg-big.sbg-cyan { color: var(--cyan); }

/* =============================================================
   Cómo funciona · pasos en lista (junto a foto)
   ============================================================= */
.steps { display: grid; }
.step { display: grid; grid-template-columns: auto 1fr; gap: 1.1rem; align-items: start; padding: 1rem 0; border-bottom: 1px solid var(--line); }
.step:first-child { border-top: 1px solid var(--line); }
.step-num { font-family: var(--mono); font-weight: 500; font-size: clamp(1.5rem, 2.6vw, 2rem); line-height: 1.15; color: var(--cyan); letter-spacing: -0.03em; min-width: 2.2ch; }
.step h3 { font-size: clamp(1rem, 1.7vw, 1.15rem); font-weight: 600; }
.step p { margin-top: .3rem; font-weight: 300; color: var(--ink-soft); font-size: .9rem; line-height: 1.55; }

/* =============================================================
   Obra real · grid de fotos
   ============================================================= */
/* Obra real: columna izq (datos) + columna der (fotos) */
.obra-split { display: grid; gap: clamp(2rem, 4vw, 3.4rem); align-items: center; }
.obra-info { display: grid; gap: 1.6rem; }

.obra-grid { display: grid; gap: 1rem; grid-template-columns: 1fr; }
.obra-cell { border-radius: 18px; overflow: hidden; border: 1px solid var(--line); aspect-ratio: 4 / 3; background: var(--paper-2); }
.obra-cell img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease-out); }
.obra-cell:hover img { transform: scale(1.05); }

/* Stats en tarjetas (banda oscura) */
.sb-item { background: rgba(255, 255, 255, .05); border: 1px solid rgba(255, 255, 255, .12); border-radius: 18px; padding: clamp(1.4rem, 3vw, 1.9rem); }

/* Descripción del BDGP-CMS dentro de la tarjeta */
.cms-desc { margin-bottom: 1.6rem; text-align: center; }
.cms-desc p { font-size: clamp(1rem, 1.7vw, 1.18rem); font-weight: 300; line-height: 1.55; color: var(--ink-soft); max-width: 66ch; margin-inline: auto; text-wrap: pretty; }
.cms-desc strong { color: var(--blue); font-weight: 700; }

/* Métrica de m² construidos en obra real */
.obra-metrics { display: flex; flex-direction: column; gap: clamp(1.8rem, 3.5vw, 2.8rem); margin-top: 0; }
.obra-metric { text-align: left; }
.obra-metric-num { display: block; font-family: var(--sans); font-weight: 800; font-size: clamp(3.2rem, 8.5vw, 5.6rem); line-height: 1; color: var(--blue); letter-spacing: -.02em; }
.obra-metric-lbl { display: block; margin-top: .55rem; font-size: clamp(.9rem, 1.4vw, 1.05rem); letter-spacing: .1em; text-transform: uppercase; color: var(--ink-mute); }

/* Credenciales en obra real (mismo patrón visual que las métricas) */
.obra-creds { display: flex; flex-direction: column; align-items: flex-start; gap: clamp(1.8rem, 3.5vw, 2.8rem); margin-top: 0; padding-top: clamp(1.8rem, 3.5vw, 2.8rem); border-top: 1px solid var(--line); }
.obra-cred { text-align: left; }
.obra-cred-num { display: block; font-family: var(--sans); font-weight: 800; font-size: clamp(2rem, 4.4vw, 3rem); line-height: 1.05; color: var(--blue); letter-spacing: -.01em; }

/* =============================================================
   FAQ
   ============================================================= */
.faq-list { display: grid; gap: .7rem; max-width: 820px; margin-inline: auto; }
.faq { border: 1px solid var(--line); border-radius: 16px; background: var(--paper); overflow: hidden; }
.faq summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 1.15rem 1.4rem; font-weight: 600; color: var(--ink); font-size: .95rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-family: var(--mono); color: var(--cyan); font-size: 1.2rem; transition: transform .35s var(--ease-out); flex: none; }
.faq[open] summary::after { transform: rotate(45deg); }
.faq-body { padding: 0 1.4rem 1.25rem; font-size: .92rem; font-weight: 300; color: var(--ink-soft); max-width: 65ch; }

/* =============================================================
   Cierre (transformación)
   ============================================================= */
.cierre-dark {
  background: linear-gradient(150deg, var(--blue-deep) 0%, var(--blue) 85%);
  border-top: 3px solid var(--cyan); overflow: clip;
}
.cierre-dark::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(620px 400px at 80% 10%, rgba(39, 184, 214, .2), transparent 65%),
    radial-gradient(520px 360px at 10% 90%, rgba(145, 225, 242, .1), transparent 65%);
  filter: blur(14px);
}
.cierre-dark .container { position: relative; }
.cierre-dark .grad-text {
  background: linear-gradient(178deg, #FFFFFF 0%, #91E1F2 96%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.cierre-dark .kicker { color: var(--cyan); }
.cierre-dark .kicker::before { background: var(--cyan); }
.cierre-dark .btn-ghost { border-color: rgba(255,255,255,.7); color: #fff; }
.cierre-dark .btn-ghost:hover { background: rgba(255,255,255,.1); }
.closing {
  max-width: 760px; margin-inline: auto; text-align: center;
}
.cierre-dark .closing p { color: rgba(255,255,255,.82); }
.cierre-dark .closing p strong { color: #fff; }
.cierre-dark .closing-note { color: rgba(255,255,255,.55); }
.closing .kicker { justify-content: center; }
.closing h2 { margin-top: .9rem; }
.closing p { margin-top: 1.1rem; font-weight: 300; color: var(--ink-soft); font-size: clamp(.96rem, 1.5vw, 1.1rem); max-width: 60ch; margin-inline: auto; }
.closing p strong { color: var(--ink); font-weight: 600; }
.closing-cta { margin-top: 1.8rem; display: flex; flex-direction: column; align-items: center; gap: 1.1rem; }
.closing-cta .ebook-cover { margin: 0; max-width: 170px; }
.closing-note { font-family: var(--mono); font-size: .7rem; letter-spacing: .05em; color: var(--ink-mute); }

/* =============================================================
   Modal (formulario guía + diagnóstico)
   ============================================================= */
.modal[hidden] { display: none; }
.modal { position: fixed; inset: 0; z-index: 200; display: flex; align-items: center; justify-content: center; padding: 1.2rem; }
.modal-overlay { position: absolute; inset: 0; background: rgba(6, 18, 29, .55); -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px); opacity: 0; transition: opacity .3s; }
.modal.is-open .modal-overlay { opacity: 1; }
.modal-dialog {
  position: relative; z-index: 1; width: min(640px, 100%); max-height: 92vh; overflow-y: auto;
  background: var(--paper); border: 1px solid var(--line); border-radius: 22px;
  padding: clamp(1.6rem, 4vw, 2.5rem); box-shadow: 0 40px 100px rgba(6, 18, 29, .35);
  transform: translateY(18px) scale(.98); opacity: 0;
  transition: transform .35s var(--ease-out), opacity .35s;
}
.modal.is-open .modal-dialog { transform: none; opacity: 1; }
.modal-close { position: absolute; top: .7rem; right: .8rem; width: 40px; height: 40px; border-radius: 50%; font-size: 1.5rem; line-height: 1; color: var(--ink-mute); display: flex; align-items: center; justify-content: center; transition: background .2s, color .2s; }
.modal-close:hover { background: var(--paper-2); color: var(--ink); }
.modal-head { margin-bottom: 1.5rem; max-width: 46ch; }
.modal-head h2 { margin-top: .7rem; font-size: clamp(1.5rem, 3.5vw, 2.1rem); font-weight: 700; }
.modal-head p { margin-top: .7rem; font-weight: 300; color: var(--ink-soft); font-size: .95rem; }

/* Pasos del formulario (2 pasos) */
.form-progress { font-family: var(--mono); font-size: .64rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-mute); margin-bottom: 1rem; }
.form-progress span { color: var(--blue); font-weight: 500; }
.step-confirm { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem .9rem; background: var(--paper-2); border: 1px solid var(--line); border-left: 3px solid var(--ok); border-radius: 14px; padding: .85rem 1.1rem; margin-bottom: 1.6rem; font-size: .92rem; font-weight: 500; color: var(--ink); }
.step-confirm svg { width: 20px; height: 20px; flex: none; color: var(--ok); }
.step-confirm .btn { margin-left: auto; }
.step-title { font-size: clamp(1.2rem, 2.6vw, 1.55rem); font-weight: 700; }
.step-sub { margin-top: .5rem; margin-bottom: 1.3rem; font-size: .9rem; font-weight: 300; color: var(--ink-soft); }
.link-skip { display: block; margin: 1rem auto 0; font-size: .8rem; color: var(--ink-mute); text-decoration: underline; text-align: center; }
.link-skip:hover { color: var(--ink); }

/* =============================================================
   Formulario (guía + diagnóstico)
   ============================================================= */
.diagnose-grid { display: grid; gap: 2.4rem; margin-top: clamp(3rem, 6vw, 4.5rem); }
.diagnose-copy > p { margin-top: 1rem; color: var(--ink-soft); max-width: 46ch; font-weight: 300; }
.diagnose-copy > p strong { color: var(--ink); font-weight: 600; }
.diagnose-points { margin-top: 1.6rem; display: grid; gap: .8rem; }
.diagnose-points li { list-style: none; display: flex; gap: .7rem; font-size: .92rem; font-weight: 300; color: var(--ink-soft); }
.diagnose-points svg { width: 17px; height: 17px; flex: none; margin-top: .15rem; color: var(--cyan); }

.ebook-cover {
  aspect-ratio: 3 / 4; max-width: 230px; margin: 1.8rem auto 0; width: 100%;
  background: linear-gradient(160deg, var(--blue-deep) 0%, var(--blue) 55%, var(--blue-mid) 100%);
  border-radius: 12px; padding: 1.3rem; display: flex; flex-direction: column; justify-content: space-between;
  box-shadow: 0 18px 40px rgba(4, 44, 83, .28);
}
.ebook-cover .ec-kicker { font-family: var(--mono); font-size: .58rem; letter-spacing: .2em; color: rgba(255, 255, 255, .75); }
.ebook-cover .ec-title { font-weight: 700; font-size: 1.25rem; line-height: 1.2; color: #fff; text-transform: uppercase; }
.ebook-cover .ec-sub { font-size: .68rem; font-weight: 300; color: rgba(255, 255, 255, .82); line-height: 1.5; }
.ebook-cover .ec-seal { font-family: var(--mono); font-size: .52rem; letter-spacing: .12em; color: var(--cyan); border-top: 1px solid rgba(255, 255, 255, .25); padding-top: .6rem; }

.form-card { background: var(--paper); border: 1px solid var(--line); border-radius: 24px; padding: clamp(1.4rem, 3vw, 2.2rem); box-shadow: 0 18px 50px rgba(10, 42, 66, .06); }
.form-grid { display: grid; gap: 1.05rem; }
.field label { display: block; font-family: var(--mono); font-size: .64rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-mute); margin-bottom: .45rem; }
.field input, .field select {
  width: 100%; background: var(--paper); border: 1px solid var(--line-strong); border-radius: 12px;
  padding: .85rem 1rem; color: var(--ink); font: inherit; font-size: .93rem;
  transition: border-color .3s, box-shadow .3s; appearance: none; -webkit-appearance: none;
}
.field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%230A4A79' stroke-width='1.6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 1rem center;
}
.field input:focus, .field select:focus { outline: none; border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(39, 184, 214, .16); }
.field input::placeholder { color: var(--ink-mute); opacity: .6; }
.form-row { display: grid; gap: 1.05rem; }
.form-foot { margin-top: .4rem; }
.form-foot .btn { width: 100%; }
.form-privacy { margin-top: .8rem; font-size: .72rem; font-weight: 300; color: var(--ink-mute); text-align: center; }
.form-error { display: none; margin-top: .7rem; font-size: .82rem; color: #c0392b; text-align: center; }
.form-error.is-on { display: block; }

.form-success { display: none; text-align: center; padding: 2.2rem 1rem; }
.form-success.is-on { display: block; }
.form-success svg { width: 60px; height: 60px; margin: 0 auto 1.1rem; color: var(--ok); }
.form-success svg path { stroke-dasharray: 80; stroke-dashoffset: 80; animation: drawCheck 1s var(--ease-out) .15s forwards; }
@keyframes drawCheck { to { stroke-dashoffset: 0; } }
.form-success h3 { font-size: 1.4rem; font-weight: 700; }
.form-success p { margin-top: .6rem; color: var(--ink-soft); font-size: .92rem; font-weight: 300; }
.form-success .btn { margin-top: 1.3rem; }

/* =============================================================
   Footer
   ============================================================= */
.footer { border-top: 1px solid var(--line); padding-block: 2.4rem; background: var(--paper); }
.footer-inner { display: flex; flex-wrap: wrap; gap: 1.2rem; justify-content: space-between; align-items: center; }
.footer-brand { display: inline-flex; align-items: center; gap: .6rem; font-weight: 800; letter-spacing: .1em; color: var(--ink); text-transform: uppercase; }
.footer-brand img { height: 42px; width: auto; }

/* Botón flotante de WhatsApp */
.wa-float { position: fixed; right: 1.1rem; bottom: 1.1rem; z-index: 90; width: 54px; height: 54px; border-radius: 50%; background: #25D366; display: flex; align-items: center; justify-content: center; box-shadow: 0 8px 28px rgba(37, 211, 102, .4); transition: transform .35s var(--ease-out); }
.wa-float:hover { transform: translateY(-3px) scale(1.05); }
.wa-float svg { width: 28px; height: 28px; color: #fff; }
.footer p { font-family: var(--mono); font-size: .64rem; letter-spacing: .06em; color: var(--ink-mute); }
.footer a { color: var(--blue); }
.footer a:hover { color: var(--cyan); }

/* =============================================================
   Responsive
   ============================================================= */
@media (min-width: 540px) {
  .form-row { grid-template-columns: 1fr 1fr; }
  .obra-grid { grid-template-columns: 1fr 1fr; }
  .obra-grid .obra-cell:first-child { grid-column: 1 / -1; }
  .stats-band-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 720px) {
  .nav-links { display: flex; }
  .frentes { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 900px) {
  .split { grid-template-columns: 1fr 1.1fr; gap: clamp(2.4rem, 5vw, 4rem); }
  .split-rev { grid-template-columns: 1.1fr 1fr; }
  .split-media { margin-bottom: 0; }
  .obra-split { grid-template-columns: 1fr 1.1fr; align-items: stretch; }
  .obra-info { height: 100%; align-content: space-between; }
}
@media (min-width: 960px) {
  .frentes { grid-template-columns: repeat(3, 1fr); }
}

/* =============================================================
   Reduced motion
   ============================================================= */
@media (prefers-reduced-motion: reduce) {
  html.js .reveal { opacity: 1; transform: none; }
  .char-reveal .ch { opacity: 1 !important; }
}