/* ============================================================
   Bochikua · Software a la medida — la torre por capas
   Tema oscuro esmeralda + dorado. brand.css carga después
   (nav, footer, botón de WhatsApp).
   ============================================================ */

:root{
  --t-night:#06110C;
  --t-night-2:#0B1D15;
  --t-slab:#0F2A1F;
  --t-ink:#EAF3EC;
  --t-soft:#9DB5A7;
  --t-line:rgba(234,243,236,.10);
  --t-em:#1FA06A;
  --t-em-2:#33B57D;
  --t-gold:#C9A24B;
  --t-gold-soft:#E7CE86;
  --ease:cubic-bezier(.16,1,.3,1);
  --wrap:1240px;
  --gut:clamp(1rem,4vw,2rem);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  margin:0;background:var(--t-night);color:var(--t-ink);
  font-family:"Geist",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:clip;
}
img,video{display:block;max-width:100%;height:auto}
a{color:inherit}
h1,h2,h3{margin:0;font-weight:700;letter-spacing:-.035em;line-height:1.04;text-wrap:balance;color:#fff}
p{margin:0}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--gut)}
.skip-link{position:absolute;left:-999px;top:8px;z-index:100;background:#fff;color:#000;padding:10px 14px;border-radius:8px}
.skip-link:focus{left:8px}

.btn{
  display:inline-flex;align-items:center;gap:.6rem;justify-content:center;
  min-height:52px;padding:0 1.5rem;border-radius:999px;font-weight:600;font-size:16px;
  text-decoration:none;white-space:nowrap;border:1px solid transparent;
  transition:transform .3s var(--ease),background .25s,border-color .25s,box-shadow .3s var(--ease);
}
.btn svg{width:20px;height:20px;flex:none}
.btn--gold{background:var(--t-gold-soft);color:#08170F;box-shadow:0 16px 34px -18px rgba(201,162,75,.6)}
.btn--gold:hover{background:#F0DCA0;transform:translateY(-2px)}
.btn--line{border-color:rgba(234,243,236,.22);color:var(--t-ink)}
.btn--line:hover{border-color:var(--t-gold-soft);transform:translateY(-2px)}

/* ---------- la torre (componente reutilizado en hero y riel) ---------- */
.tower{list-style:none;margin:0;padding:0;display:flex;flex-direction:column-reverse;align-items:center;gap:6px}
.tower li{
  position:relative;height:var(--h,38px);border-radius:10px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;padding:0 16px;
  font-size:13.5px;font-weight:600;color:var(--t-soft);letter-spacing:-.005em;
  background:linear-gradient(180deg,#15382A,#0E271D);
  border:1px solid rgba(234,243,236,.08);
  box-shadow:0 10px 18px -12px rgba(0,0,0,.8),inset 0 1px 0 rgba(255,255,255,.06);
  transition:background .4s var(--ease),color .3s,border-color .3s,opacity .5s var(--ease),transform .6s var(--ease);
}
.tower li small{font-family:"Geist Mono",monospace;font-weight:400;font-size:11px;color:#6E8C7C}
.tower li.core{background:linear-gradient(180deg,#1C5B41,#123F2D);color:var(--t-ink);border-color:rgba(31,160,106,.35)}
.tower li.core small{color:var(--t-gold-soft)}
.tower li.yours{
  background:transparent;border:1.5px dashed rgba(231,206,134,.55);color:var(--t-gold-soft);box-shadow:none
}
.tower li.yours small{color:var(--t-gold)}
.tower li.is-on{background:linear-gradient(180deg,#2A6B4D,#1A4A35);color:#fff;border-color:var(--t-gold)}
.tower li.is-on small{color:var(--t-gold-soft)}

/* ============================================================
   HERO
   ============================================================ */
.hero{position:relative;padding:clamp(7.5rem,13vw,9.5rem) 0 clamp(4rem,8vw,6rem);overflow:hidden}
.hero::before{content:"";position:absolute;inset:auto -10% -30% -10%;height:70%;
  background:radial-gradient(60% 60% at 70% 80%,rgba(31,160,106,.20),transparent 70%),
             radial-gradient(40% 40% at 72% 30%,rgba(201,162,75,.10),transparent 70%);pointer-events:none}
.hero__grid{position:relative;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(2rem,6vw,5rem);align-items:center}
.hero h1{font-size:clamp(2.7rem,6vw,5.2rem)}
.hero h1 em{font-style:normal;color:var(--t-gold-soft)}
.hero__lead{margin-top:1.4rem;color:var(--t-soft);font-size:clamp(1.05rem,1.5vw,1.25rem);max-width:34rem}
.hero__cta{margin-top:2rem;display:flex;flex-wrap:wrap;gap:.8rem}
.hero__fact{margin-top:1.3rem;font-size:14px;color:var(--t-soft)}
.hero__fact b{color:var(--t-ink);font-weight:600}

.hero__tower{position:relative;padding:1rem 0}
.hero__tower .tower li{width:var(--w,80%)}
.hero__tower .tower li.yours{animation:none}
.hero__ground{margin:10px auto 0;width:96%;height:14px;border-radius:50%;background:radial-gradient(closest-side,rgba(0,0,0,.6),transparent)}

/* ============================================================
   LAS CAPAS (riel con torre + contenido)
   ============================================================ */
.layers{border-top:1px solid var(--t-line);background:var(--t-night-2)}
.layers__intro{padding:clamp(5rem,9vw,7rem) 0 clamp(2.5rem,5vw,3.5rem)}
.layers__intro h2{font-size:clamp(2.1rem,4.4vw,3.6rem);max-width:18ch}
.layers__intro p{margin-top:1rem;max-width:40rem;color:var(--t-soft);font-size:1.1rem}

.layers__body{display:grid;grid-template-columns:300px minmax(0,1fr);gap:clamp(2rem,5vw,4.5rem);padding-bottom:clamp(4rem,8vw,6rem)}
.rail{position:sticky;top:100px;align-self:start}
.rail .tower li{width:var(--w,100%);opacity:.28;transform:translateY(6px)}
.rail .tower li.is-built{opacity:1;transform:none}
.rail .tower li.yours{opacity:1;transform:none}
.rail__cap{margin-top:14px;text-align:center;font-family:"Geist Mono",monospace;font-size:11.5px;color:#6E8C7C}

.layer{display:grid;gap:1.4rem;scroll-margin-top:110px}
.layer + .layer{margin-top:clamp(4.5rem,9vw,7rem)}
.layer h3{font-size:clamp(1.7rem,3vw,2.5rem);display:flex;align-items:baseline;gap:.9rem}
.layer__n{flex:none;font-family:"Geist Mono",monospace;font-weight:500;font-size:.62em;color:var(--t-gold);letter-spacing:0;
  min-width:1.9em;height:1.9em;display:inline-grid;place-items:center;border:1px solid rgba(201,162,75,.45);border-radius:8px;transform:translateY(-.15em)}
.layer__text{color:var(--t-soft);font-size:1.06rem;max-width:40rem}
.layer__text b{color:var(--t-ink);font-weight:600}
.layer__facts{display:flex;flex-wrap:wrap;gap:.5rem}
.layer__facts span{font-size:13.5px;padding:.38rem .8rem;border-radius:999px;border:1px solid var(--t-line);color:var(--t-ink);background:rgba(234,243,236,.03)}
.layer__facts span.num{font-family:"Geist Mono",monospace;border-color:rgba(201,162,75,.4);color:var(--t-gold-soft)}
.layer__link{display:inline-flex;align-items:center;gap:.4rem;color:var(--t-gold-soft);font-weight:600;text-decoration:none;font-size:15.5px;width:fit-content}
.layer__link:hover{text-decoration:underline;text-underline-offset:4px}
.layer__link svg{width:16px;height:16px;transition:transform .3s var(--ease)}
.layer__link:hover svg{transform:translateX(3px)}

.shot{margin:0;border-radius:14px;overflow:hidden;background:#0D1F17;border:1px solid var(--t-line);
  box-shadow:0 40px 80px -42px rgba(0,0,0,.9)}
.shot__bar{display:flex;align-items:center;gap:6px;height:30px;padding:0 12px;background:#10261C;border-bottom:1px solid var(--t-line)}
.shot__bar i{width:9px;height:9px;border-radius:50%;background:#2B4A3D}
.shot__bar span{margin-left:10px;font-family:"Geist Mono",monospace;font-size:11.5px;color:#7F9C8D;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.shot img{width:100%}
.pair{display:grid;grid-template-columns:1.4fr 1fr;gap:1rem;align-items:start}
.photo{margin:0;border-radius:14px;overflow:hidden;border:1px solid var(--t-line)}
.photo img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10}

/* capa vacía: la tuya */
.layer--yours{padding:clamp(1.8rem,4vw,2.8rem);border-radius:20px;border:1.5px dashed rgba(231,206,134,.45);
  background:radial-gradient(80% 120% at 0% 0%,rgba(201,162,75,.10),transparent 60%)}
.layer--yours h3{color:var(--t-gold-soft)}
.layer--yours .btn{width:fit-content}

/* ============================================================
   CÓMO SE CONSTRUYE UNA CAPA
   ============================================================ */
.how{padding:clamp(5rem,9vw,7rem) 0;border-top:1px solid var(--t-line)}
.how h2{font-size:clamp(2rem,4vw,3.2rem);max-width:18ch}
.how ol{list-style:none;margin:2.8rem 0 0;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;
  border-top:1px solid rgba(201,162,75,.35)}
.how li{padding:1.6rem 1.6rem 0 0;position:relative}
.how li::before{content:"";position:absolute;top:-6px;left:0;width:11px;height:11px;border-radius:50%;background:var(--t-gold);box-shadow:0 0 0 5px var(--t-night)}
.how li b{display:block;font-size:1.15rem;letter-spacing:-.015em;color:#fff}
.how li p{margin-top:.5rem;color:var(--t-soft);font-size:15.5px}
.how__note{margin-top:2.6rem;color:var(--t-soft);font-size:15.5px;max-width:44rem}
.how__note b{color:var(--t-ink)}

/* ============================================================
   CIERRE
   ============================================================ */
.close{padding:clamp(5rem,10vw,8rem) 0;background:radial-gradient(60% 80% at 50% 100%,rgba(31,160,106,.18),transparent 70%),var(--t-night-2);border-top:1px solid var(--t-line)}
.close__in{display:flex;flex-direction:column;align-items:center;text-align:center}
.close h2{font-size:clamp(2.2rem,5vw,4rem);max-width:16ch}
.close p{margin-top:1.2rem;max-width:36rem;color:var(--t-soft);font-size:1.1rem}
.close__cta{margin-top:2.2rem;display:flex;gap:.8rem;flex-wrap:wrap;justify-content:center}

/* ============================================================
   MOVIMIENTO: la torre se levanta capa por capa en el hero
   ============================================================ */
@media (prefers-reduced-motion:no-preference){
  .js .hero__tower .tower li{animation:coil .8s var(--ease) both;animation-delay:calc(var(--i) * 90ms + 200ms)}
  @keyframes coil{from{opacity:0;transform:translateY(-26px) scaleX(.94)}to{opacity:1;transform:none}}
  .js .hero__tower .tower li.yours{animation:coil .8s var(--ease) both,breathe 2.8s ease-in-out 1.4s infinite}
  @keyframes breathe{50%{border-color:rgba(231,206,134,.95)}}
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:980px){
  .hero__grid{grid-template-columns:minmax(0,1fr)}
  .hero__tower{max-width:460px;width:100%;margin:0 auto}
  .layers__body{grid-template-columns:minmax(0,1fr)}
  .rail{display:none}
  .how ol{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:2rem}
}
@media (max-width:640px){
  body{font-size:16px}
  .hero__cta .btn,.close__cta .btn{flex:1 1 100%}
  .tower li{font-size:12.5px;padding:0 12px}
  .pair{grid-template-columns:minmax(0,1fr)}
  .how ol{grid-template-columns:minmax(0,1fr);border-top:0;border-left:1px solid rgba(201,162,75,.35);padding-left:1.4rem}
  .how li{padding:0 0 0 0}
  .how li::before{left:-1.4rem;top:.35rem;transform:translateX(-50%)}
  .layer--yours .btn{width:100%}
}

/* ============================================================
   DESARROLLADORES (sección que reemplaza index.html)
   ============================================================ */
.dev{padding:clamp(5rem,9vw,7rem) 0;border-top:1px solid var(--t-line)}
.dev__head{max-width:46rem}
.dev h2{font-size:clamp(2rem,4vw,3.2rem);max-width:20ch}
.dev__head p{margin-top:1rem;color:var(--t-soft);font-size:1.08rem}
.dev__ready{list-style:none;margin:2.4rem 0 0;padding:0;display:flex;flex-wrap:wrap;gap:.5rem}
.dev__ready li{font-size:14px;padding:.45rem .9rem;border-radius:999px;background:linear-gradient(180deg,#15382A,#0E271D);border:1px solid rgba(234,243,236,.08);color:var(--t-ink)}
.dev__arch{margin-top:3rem;display:grid;grid-template-columns:200px 60px minmax(0,1fr);align-items:center}
.dev__ai{display:flex;flex-direction:column;gap:.6rem}
.dev__ai span{padding:.9rem 1rem;border-radius:12px;border:1px solid rgba(201,162,75,.45);color:var(--t-gold-soft);font-weight:600;text-align:center}
.dev__wire{height:2px;background:linear-gradient(90deg,var(--t-gold),rgba(201,162,75,.2))}
.dev__arch ol{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--t-line);border:1px solid var(--t-line);border-radius:16px;overflow:hidden}
.dev__arch li{background:var(--t-night-2);padding:1.3rem 1.4rem}
.dev__arch li b{color:#fff;letter-spacing:-.01em}
.dev__arch li p{margin-top:.4rem;color:var(--t-soft);font-size:15px}
.dev__cta{margin-top:2.6rem;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:1.2rem 2rem}
.dev__cta p{max-width:40rem;color:var(--t-soft)}
@media (max-width:980px){
  .dev__arch{grid-template-columns:minmax(0,1fr)}
  .dev__ai{flex-direction:row}
  .dev__ai span{flex:1}
  .dev__wire{width:2px;height:28px;margin:0 auto;background:linear-gradient(var(--t-gold),rgba(201,162,75,.2))}
}
@media (max-width:640px){
  .dev__arch ol{grid-template-columns:minmax(0,1fr)}
  .dev__cta .btn{width:100%}
}