/* SmarTags · landing
   Lectura: producto de seguridad para motociclistas, dueños de mascotas y organizaciones en Juárez.
   Estética: señalética utilitaria, monocromo frío + un solo acento rojo. CSS nativo (sin framework).
   Diales: variance 7 · motion 5 · density 4. */

@font-face{font-family:"Geist";src:url("../fonts/Geist-Variable.woff2") format("woff2");font-weight:100 900;font-display:swap}
@font-face{font-family:"Geist Mono";src:url("../fonts/GeistMono-Variable.woff2") format("woff2");font-weight:100 900;font-display:swap}

:root{
  --bg:#F4F5F6; --surface:#FFFFFF; --sunken:#EBEDEF;
  --ink:#111418; --ink-2:#4A525B; --ink-3:#6F7881; --line:#DFE3E7;
  --accent:#C4223B; --accent-press:#A81B31; --on-accent:#FFFFFF; --accent-soft:rgba(196,34,59,.09);
  --nav:rgba(244,245,246,.72);
  --shadow:0 1px 2px rgba(17,20,24,.05),0 8px 24px -12px rgba(17,20,24,.18);
  --r:12px; --r-lg:20px;
  --ease-out:cubic-bezier(0.23,1,0.32,1);
  --ease-in-out:cubic-bezier(0.77,0,0.175,1);
  --wrap:1180px;
  color-scheme:light dark;
  interpolate-size:allow-keywords;
}
@media (prefers-color-scheme:dark){
  :root{
    --bg:#0E1013; --surface:#16191D; --sunken:#1C2025;
    --ink:#ECEEF0; --ink-2:#A9B0B8; --ink-3:#8A939C; --line:#272C32;
    --accent:#D23A51; --accent-press:#B92E43; --accent-soft:rgba(210,58,81,.14);
    --nav:rgba(14,16,19,.7);
    --shadow:0 1px 2px rgba(0,0,0,.4),0 10px 30px -12px rgba(0,0,0,.6);
  }
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--ink);font:400 1.0625rem/1.6 "Geist",system-ui,sans-serif;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{display:block;max-width:100%;height:auto}
.tile picture,.banner picture,.feat picture{display:contents}
a{color:inherit;text-decoration:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}
.ti{width:1.25em;height:1.25em;flex:none;stroke-width:1.75}
.mono{font-family:"Geist Mono",ui-monospace,monospace;font-feature-settings:"tnum"}

/* Tipografía: tracking negativo que crece con el tamaño, leading inverso */
h1,h2,h3{margin:0;font-weight:600;color:var(--ink)}
.display{font-size:clamp(2.6rem,5.4vw,4.5rem);line-height:1.02;letter-spacing:-.04em;font-weight:620}
.h2{font-size:clamp(1.9rem,3.4vw,2.9rem);line-height:1.06;letter-spacing:-.03em;max-width:18ch}
.h3{font-size:1.25rem;line-height:1.25;letter-spacing:-.012em}
.lede{font-size:clamp(1.0625rem,1.4vw,1.2rem);color:var(--ink-2);max-width:46ch;margin:0}
.body{color:var(--ink-2);max-width:60ch;margin:0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.75rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3)}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--accent)}

/* Botones: respuesta en pointer-down, hover solo con puntero fino */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;height:50px;padding:0 22px;border-radius:var(--r);font:600 1rem/1 "Geist",sans-serif;white-space:nowrap;border:1px solid transparent;cursor:pointer;
  transition:background-color 160ms ease,border-color 160ms ease,transform 120ms var(--ease-out)}
.btn:active{transform:scale(.97)}
.btn-primary{background:var(--accent);color:var(--on-accent)}
.btn-ghost{background:var(--surface);color:var(--ink);border-color:var(--line)}
.btn-sm{height:40px;padding:0 16px;font-size:.9375rem}
.btn .ti{width:18px;height:18px}
@media (hover:hover) and (pointer:fine){
  .btn-primary:hover{background:var(--accent-press)}
  .btn-ghost:hover{border-color:var(--ink-3)}
}

/* ---------- Nav: material translúcido sobre el contenido ---------- */
.nav{position:sticky;top:0;z-index:50;background:var(--nav);-webkit-backdrop-filter:blur(18px) saturate(180%);backdrop-filter:blur(18px) saturate(180%);
  border-bottom:1px solid color-mix(in srgb,var(--line) 70%,transparent)}
@media (prefers-reduced-transparency:reduce){.nav{background:var(--bg);-webkit-backdrop-filter:none;backdrop-filter:none}}
.nav .wrap{height:68px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:10px;font-weight:650;font-size:1.0625rem;letter-spacing:-.01em}
.brand svg{width:28px;height:28px;border-radius:7px}
.nav-links{display:flex;gap:26px;flex:1;font-size:.9375rem;color:var(--ink-2)}
.nav-links a{transition:color 150ms ease}
@media (hover:hover){.nav-links a:hover{color:var(--ink)}}
.nav-end{display:flex;align-items:center;gap:6px}
.nav-end .link{font-size:.9375rem;color:var(--ink-2);padding:8px 12px}
@media (max-width:880px){.nav-links{display:none}.nav .wrap{justify-content:space-between}}
@media (max-width:400px){.nav-end .link{display:none}}

/* ---------- Hero ---------- */
.hero{padding:72px 0 96px}
.hero .wrap{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);gap:56px;align-items:center}
.hero-copy{display:grid;gap:24px;justify-items:start}
.hero-ctas{display:flex;gap:10px;flex-wrap:wrap;margin-top:8px}
.stage{position:relative;justify-self:center;width:min(100%,420px);display:grid;place-items:center;padding:12px 0}
.device{position:relative;width:322px;height:640px;border-radius:44px;padding:11px;background:#0F1215;box-shadow:var(--shadow),0 40px 80px -30px rgba(17,20,24,.45);
  outline:1px solid rgba(255,255,255,.06);outline-offset:-1px}
.device::before{content:"";position:absolute;top:20px;left:50%;width:92px;height:26px;margin-left:-46px;border-radius:20px;background:#0F1215;z-index:2}
.device iframe{width:100%;height:100%;border:0;border-radius:34px;background:#fff;display:block}
.tap{position:absolute;left:-6px;bottom:96px;width:92px;height:92px;border-radius:50%;background:var(--surface);box-shadow:var(--shadow);display:grid;place-items:center;color:var(--ink);z-index:3}
.tap .ti{width:36px;height:36px;stroke-width:1.5}
.tap::before,.tap::after{content:"";position:absolute;inset:0;border-radius:50%;border:1.5px solid var(--accent);opacity:0}
.tap-label{position:absolute;left:96px;bottom:124px;z-index:3;background:var(--ink);color:var(--bg);font-size:.8125rem;font-weight:600;padding:7px 11px;border-radius:999px;white-space:nowrap}
@media (max-width:980px){
  .hero{padding:40px 0 72px}
  .hero .wrap{grid-template-columns:1fr;gap:48px}
  .stage{justify-self:start}
}
@media (max-width:420px){.device{width:290px;height:580px}.tap{left:-2px}.tap-label{display:none}}

/* ---------- Secciones ---------- */
.section{padding:112px 0}
.section + .section{border-top:1px solid var(--line)}
.head{display:grid;gap:16px;margin-bottom:56px}
@media (max-width:720px){.section{padding:80px 0}.head{margin-bottom:40px}}

/* Cómo funciona: línea de tiempo con verbos */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));position:relative;counter-reset:s}
.steps::before{content:"";position:absolute;left:0;right:0;top:23px;height:1px;background:var(--line)}
.step{position:relative;padding-right:36px}
.step .n{position:relative;width:46px;height:46px;border-radius:50%;background:var(--bg);border:1px solid var(--line);display:grid;place-items:center;color:var(--ink)}
.step .n .ti{width:22px;height:22px}
.step:first-child .n{background:var(--accent);border-color:var(--accent);color:var(--on-accent)}
.step h3{margin:22px 0 8px}
.step p{margin:0;color:var(--ink-2);max-width:32ch}
@media (max-width:820px){
  .steps{grid-template-columns:1fr;gap:34px}
  .steps::before{left:23px;right:auto;top:0;bottom:0;width:1px;height:auto}
  .step{display:grid;grid-template-columns:46px 1fr;column-gap:20px;padding:0}
  .step h3{margin:10px 0 6px}
  .step p{grid-column:2}
}

/* Usos: bento de 3 celdas exactas, todas con foto */
.bento{display:grid;grid-template-columns:1.25fr 1fr;grid-template-rows:repeat(2,minmax(260px,1fr));gap:16px}
.tile{position:relative;border-radius:var(--r-lg);overflow:hidden;background:var(--sunken);isolation:isolate;min-height:260px;display:flex;align-items:flex-end}
.tile.big{grid-row:span 2;min-height:560px}
.tile img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;transition:transform 700ms var(--ease-out)}
.tile::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(10,12,14,0) 35%,rgba(10,12,14,.78) 100%)}
.tile .in{padding:28px;color:#fff;display:grid;gap:8px;width:100%}
.tile h3{color:#fff;font-size:1.6rem;letter-spacing:-.025em;line-height:1.1}
.tile.big h3{font-size:clamp(1.8rem,2.6vw,2.4rem)}
.tile p{margin:0;color:rgba(255,255,255,.84);max-width:38ch;font-size:1rem}
.tile .go{display:inline-flex;align-items:center;gap:6px;margin-top:6px;font-weight:600;font-size:.9375rem}
.tile .go .ti{width:18px;height:18px;transition:transform 200ms var(--ease-out)}
@media (hover:hover) and (pointer:fine){
  .tile:hover img{transform:scale(1.03)}
  .tile:hover .go .ti{transform:translate(2px,-2px)}
}
@media (max-width:820px){
  .bento{grid-template-columns:1fr;grid-template-rows:none}
  .tile.big{grid-row:auto;min-height:440px}
  .tile{min-height:320px}
}

/* Control: rejilla 2x2 */
.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;display:grid;gap:10px;align-content:start}
.card .ico{width:44px;height:44px;border-radius:var(--r);background:var(--accent-soft);color:var(--accent);display:grid;place-items:center;margin-bottom:6px}
.card .ico .ti{width:22px;height:22px}
.card p{margin:0;color:var(--ink-2)}
@media (max-width:720px){.grid2{grid-template-columns:1fr}}

/* Organizaciones: foto panorámica + carril con scroll-snap */
.banner{border-radius:var(--r-lg);overflow:hidden;aspect-ratio:21/8;background:var(--sunken)}
.banner img{width:100%;height:100%;object-fit:cover;object-position:center 40%}
.rail{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(250px,1fr);gap:14px;margin-top:16px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:6px;scrollbar-width:thin}
.seg{scroll-snap-align:start;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;display:grid;gap:8px;align-content:start}
.seg .ti{width:24px;height:24px;color:var(--ink-3)}
.seg h3{font-size:1.0625rem;letter-spacing:-.01em;margin-top:8px}
.seg p{margin:0;font-size:.9375rem;color:var(--ink-2)}
.org-cta{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-top:32px}
.org-cta p{margin:0;color:var(--ink-2);max-width:52ch}
@media (max-width:720px){.banner{aspect-ratio:4/3}}

/* Tienda: destacado + resto */
.shop{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:16px}
.feat{position:relative;border-radius:var(--r-lg);overflow:hidden;background:var(--ink);color:#fff;display:grid;grid-template-rows:1fr auto;min-height:480px;isolation:isolate}
.feat img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-1;opacity:.62;transition:transform 700ms var(--ease-out)}
.feat .in{grid-row:2;padding:28px;display:grid;gap:10px;background:linear-gradient(180deg,rgba(10,12,14,0),rgba(10,12,14,.82) 40%)}
.feat h3{color:#fff;font-size:1.75rem;letter-spacing:-.025em}
.feat p{margin:0;color:rgba(255,255,255,.84);max-width:40ch}
.feat .row{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:8px}
.feat .price{font-size:1.5rem;font-weight:600;letter-spacing:-.02em}
.list{display:grid;gap:12px;align-content:start}
.item{display:grid;grid-template-columns:48px 1fr auto;gap:16px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:18px 20px;transition:border-color 160ms ease,transform 120ms var(--ease-out)}
.item:active{transform:scale(.985)}
.item .ico{width:48px;height:48px;border-radius:var(--r);background:var(--sunken);display:grid;place-items:center;color:var(--ink-2)}
.item .ico .ti{width:22px;height:22px}
.item b{display:block;font-weight:600;letter-spacing:-.01em}
.item span{display:block;color:var(--ink-2);font-size:.9375rem;line-height:1.4}
.item .price{font-weight:600;white-space:nowrap}
@media (hover:hover) and (pointer:fine){.item:hover{border-color:var(--ink-3)}.feat:hover img{transform:scale(1.03)}}
@media (max-width:900px){.shop{grid-template-columns:1fr}.feat{min-height:400px}}

/* FAQ: acordeón con altura animada (único caso donde se tolera animar height) */
.faq{max-width:780px;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:20px;padding:22px 0;font-weight:600;font-size:1.0625rem;letter-spacing:-.01em}
.faq summary::-webkit-details-marker{display:none}
.faq summary .ti{color:var(--ink-3);transition:transform 220ms var(--ease-out)}
.faq details[open] summary .ti{transform:rotate(45deg)}
.faq details::details-content{height:0;overflow:clip;transition:height 260ms var(--ease-out),content-visibility 260ms allow-discrete}
.faq details[open]::details-content{height:auto}
.faq details p{margin:0 0 22px;color:var(--ink-2);max-width:62ch}

/* Footer */
.foot{border-top:1px solid var(--line);padding:40px 0 56px;color:var(--ink-3);font-size:.9375rem}
.foot .wrap{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.foot nav{display:flex;gap:22px;flex-wrap:wrap}
@media (hover:hover){.foot a:hover{color:var(--ink)}}

/* ---------- Movimiento ----------
   1. Entrada del hero (raro, primera vista): jerarquía. ease-out fuerte, 60 ms de escalonado.
   2. Pulso NFC (explicación): enseña que el tag se acerca, no se escanea con cámara.
   3. Aparición al hacer scroll (evitar contenido que "salta"): una vez, transform + opacity.
   Todo detrás de prefers-reduced-motion; con reduce solo queda un fundido corto. */
@media (prefers-reduced-motion:no-preference){
  .rise{animation:rise 700ms var(--ease-out) both;animation-delay:calc(var(--i,0) * 60ms)}
  .device.rise{animation-name:rise-device;animation-duration:900ms}
  @keyframes rise{from{opacity:0;transform:translateY(14px)}}
  @keyframes rise-device{from{opacity:0;transform:translateY(24px) scale(.97)}}

  .tap::before{animation:ping 2.6s var(--ease-out) infinite 1.2s}
  .tap::after{animation:ping 2.6s var(--ease-out) infinite 1.9s}
  @keyframes ping{0%{opacity:.55;transform:scale(1)}100%{opacity:0;transform:scale(1.75)}}

  .js [data-reveal]{opacity:0;transform:translateY(18px);transition:opacity 700ms var(--ease-out),transform 700ms var(--ease-out);transition-delay:calc(var(--i,0) * 70ms)}
  .js [data-reveal].in{opacity:1;transform:none}
}
@media (prefers-reduced-motion:reduce){
  .rise{animation:fade 200ms ease both}
  @keyframes fade{from{opacity:0}}
  .faq details::details-content{transition:none}
}