/* Páginas de detalle (/terminal, /completo, /caja, /app) y de compra (/comprar).
   Usan la base de /estilos.css (colores, barra, botones, pie). */
.volver{display:inline-flex;align-items:center;gap:6px;min-height:44px;font-size:15px;font-weight:500;color:var(--muted);text-decoration:none}
.volver:hover{color:var(--navy)}

/* encabezado del producto */
.det-hero{background:var(--ww);padding:12px 0 36px}
.det-hero .wrap{display:grid;gap:16px 24px}
.det-hero .volver{grid-column:1/-1;justify-self:start}
.det-copy{display:flex;flex-direction:column;gap:14px}
.det-copy h1{font-size:34px;line-height:38px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips span{padding:6px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;line-height:18px;font-weight:500;color:var(--muted)}
.det-foto img{width:100%;height:auto;border-radius:20px;background:#fff;border:1px solid var(--line)}
.precio-box{display:flex;flex-direction:column;gap:10px;padding:18px;background:#fff;border:1px solid var(--line);border-radius:16px}
.precio-box .fila{display:flex;align-items:baseline;justify-content:space-between;gap:12px;flex-wrap:wrap}
.precio-box .que{font-size:14px;line-height:20px;color:var(--muted)}
.precio-box .que b{display:block;font-size:15px;color:var(--ink)}
.precio-box .monto{font-size:30px;line-height:34px;font-weight:700;letter-spacing:-.6px;color:var(--ink);white-space:nowrap}
.precio-box .monto small{font-size:14px;font-weight:500;color:var(--muted);letter-spacing:0}
.precio-box hr{border:0;border-top:1px solid var(--line);margin:2px 0}
.precio-box .promo-mini{font-size:13px;line-height:18px;font-weight:700;color:var(--navy)}
.det-ctas{display:flex;flex-direction:column;gap:10px}
.det-ctas .btn{width:100%}
.det-ctas .nota{text-align:center}

/* secciones */
.equipos{display:grid;gap:12px}
.equipo{display:flex;gap:14px;padding:18px;background:var(--ww);border:1px solid var(--line);border-radius:14px}
.equipo h3{font-size:17px;line-height:22px;font-weight:700}
.equipo p{font-size:15px;line-height:22px;color:var(--muted);margin-top:4px}
.pasos-det{display:flex;flex-direction:column;gap:28px}
.paso-det{display:grid;gap:16px;align-items:center}
.paso-det .txt{display:flex;flex-direction:column;gap:8px}
.paso-det h3{font-size:20px;line-height:26px;font-weight:700}
.paso-det p{font-size:15px;line-height:23px;color:var(--muted)}
.paso-det ul{margin:4px 0 0;padding-left:20px;display:flex;flex-direction:column;gap:6px}
.paso-det li{font-size:15px;line-height:22px;color:var(--muted)}
.paso-det li b{color:var(--ink)}
.paso-det .pn{display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:700;letter-spacing:.8px;color:var(--navy);text-transform:uppercase}
.paso-det .pn span{width:30px;height:30px;border-radius:50%;background:var(--navy);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:15px;letter-spacing:0}
.pantalla{border-radius:14px;overflow:hidden;border:1px solid var(--line);box-shadow:0 14px 34px rgba(13,13,13,.10);background:#fff}
.pantalla img{display:block;width:100%;height:auto}
.medios{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.medios div{padding:14px;background:var(--ww);border:1px solid var(--line);border-radius:12px}
.medios b{display:block;font-size:15px;line-height:20px}
.medios span{display:block;font-size:13px;line-height:18px;color:var(--muted);margin-top:2px}
.medios .ancho{grid-column:1/-1}
.ticket{max-width:260px;margin:0 auto;padding:20px 18px;background:#fff;border:1px solid var(--line);border-radius:6px;box-shadow:0 14px 34px rgba(13,13,13,.10);font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12px;line-height:18px;color:#222}
.ticket .c{text-align:center}
.ticket .r{display:flex;justify-content:space-between;gap:8px}
.ticket hr{border:0;border-top:1px dashed #999;margin:8px 0}
.ticket .qr{width:64px;height:64px;margin:8px auto 4px;background:repeating-conic-gradient(#222 0 25%,#fff 0 50%) 0 0/16px 16px;border:4px solid #fff;outline:1px solid #222}
.funciones{display:grid;gap:12px}
.funcion{padding:18px;background:var(--ww);border:1px solid var(--line);border-radius:14px;display:flex;flex-direction:column;gap:6px}
.funcion h3{font-size:16px;line-height:22px;font-weight:700}
.funcion p{font-size:14px;line-height:21px;color:var(--muted)}
.saber{display:grid;gap:12px}
.saber .infobox{background:var(--ww)}
.otras{display:grid;gap:12px}
.otra{display:flex;align-items:center;gap:14px;padding:12px;background:#fff;border:1px solid var(--line);border-radius:14px;text-decoration:none;color:var(--ink)}
.otra:hover{border-color:var(--navy)}
.otra img{flex:none;width:96px;height:64px;object-fit:cover;border-radius:10px;background:var(--ww)}
.otra b{display:block;font-size:16px;line-height:22px}
.otra span{display:block;font-size:14px;line-height:20px;color:var(--muted)}
.cierre-det{background:var(--navy);color:#fff}
.cierre-det .wrap{display:flex;flex-direction:column;gap:12px}
.cierre-det h2{font-size:28px;line-height:33px}
.cierre-det p{font-size:16px;line-height:24px;color:var(--soft)}
.cierre-det .det-ctas{margin-top:8px}

/* barra fija del celular: precio + comprar */
.barra-compra{position:fixed;left:0;right:0;bottom:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:#fff;border-top:1px solid var(--line);box-shadow:0 -8px 24px rgba(13,13,13,.08);transform:translateY(110%);transition:transform .25s ease}
.barra-compra.on{transform:none}
.barra-compra .p{font-size:13px;line-height:17px;color:var(--muted)}
.barra-compra .p b{display:block;font-size:18px;line-height:22px;color:var(--ink)}
.barra-compra .btn{min-height:46px;padding:0 20px;font-size:16px}
@media (prefers-reduced-motion:reduce){.barra-compra{transition:none}}

/* compra */
.compra{background:var(--ww);padding:20px 0 120px;min-height:70vh}
.compra .wrap{display:grid;grid-template-columns:minmax(0,1fr);gap:20px;align-items:start}
.compra h1{font-size:28px;line-height:34px}
.compra .sub{font-size:15px;line-height:22px;color:var(--muted);margin-top:6px}
.paso-c{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;display:flex;flex-direction:column;gap:14px}
.paso-c h2{display:flex;align-items:center;gap:10px;font-size:19px;line-height:24px;letter-spacing:-.2px}
.paso-c h2 span{flex:none;width:30px;height:30px;border-radius:50%;background:var(--navy);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:15px}
.paso-c .ayuda{font-size:14px;line-height:20px;color:var(--muted)}
.c-form{display:flex;flex-direction:column;gap:16px}
.c-form fieldset{border:0;margin:0;padding:0;min-width:0}
.kit-opts,.pago-opts{display:grid;gap:10px}
.kit-opt,.pago-opt{position:relative;display:flex;gap:12px;align-items:center;padding:12px 14px 12px 46px;background:#fff;border:2px solid var(--line);border-radius:14px;cursor:pointer}
.kit-opt input,.pago-opt input{position:absolute;left:16px;top:50%;width:20px;height:20px;margin:-10px 0 0;accent-color:var(--navy)}
.kit-opt:has(input:checked),.pago-opt:has(input:checked){border-color:var(--navy);background:var(--soft)}
.kit-opt:has(input:focus-visible),.pago-opt:has(input:focus-visible){outline:3px solid var(--blue);outline-offset:2px}
.kit-opt img{flex:none;width:56px;height:40px;object-fit:cover;border-radius:8px;background:var(--ww)}
.kit-opt .t,.pago-opt .t{display:flex;flex-direction:column;gap:2px;min-width:0}
.kit-opt b,.pago-opt b{font-size:16px;line-height:21px}
.kit-opt small,.pago-opt small{font-size:13px;line-height:18px;color:var(--muted)}
.kit-opt .pr{margin-left:auto;font-size:16px;font-weight:700;white-space:nowrap}
@media (max-width:420px){.kit-opt img{display:none}}
.pago-opt{align-items:flex-start;padding-top:14px;padding-bottom:14px}
.pago-opt input{top:26px}
.pago-opt .rec{display:inline-block;margin-left:6px;vertical-align:1px;padding:2px 9px;border-radius:999px;background:#E3F4E8;color:#1E6B3A;font-size:12px;font-weight:700}
.c-fields{display:grid;gap:14px}
.c-field{display:flex;flex-direction:column;gap:6px}
.c-field label{font-size:14px;line-height:18px;font-weight:700}
.c-field input,.c-field select{width:100%;min-height:48px;padding:0 14px;background:#fff;border:1px solid #C9CDD3;border-radius:10px;color:var(--ink);font:inherit;font-size:16px}
.c-field input:focus,.c-field select:focus{outline:2px solid var(--navy);outline-offset:1px;border-color:var(--navy)}
.c-field.invalid input,.c-field.invalid select{border-color:#C62828}
.c-field .hint{font-size:13px;line-height:18px;color:var(--muted)}
.c-err{font-size:13px;line-height:18px;color:#C62828}
.c-err:empty{display:none}
.c-acepta label{display:flex;align-items:flex-start;gap:12px;font-size:15px;line-height:22px;cursor:pointer}
.c-acepta input{flex:none;width:22px;height:22px;margin:1px 0 0;accent-color:var(--navy)}
.c-acepta.invalid label{color:#C62828}
.c-msg{font-size:15px;line-height:22px;color:#C62828}
.c-msg:empty{display:none}
.c-msg a{font-weight:700}
.c-form .btn:disabled{opacity:.6;cursor:progress}
.c-seguro{display:flex;align-items:center;gap:8px;justify-content:center;font-size:13px;line-height:18px;color:var(--muted)}
.resumen{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px;display:flex;flex-direction:column;gap:12px}
.resumen .eyebrow{font-size:12px}
.resumen img{width:100%;height:auto;border-radius:12px;background:var(--ww)}
.resumen h3{font-size:20px;line-height:26px}
.resumen ul{margin:0;padding-left:18px;font-size:14px;line-height:21px;color:var(--muted)}
.resumen .fila{display:flex;justify-content:space-between;gap:12px;font-size:15px;line-height:22px}
.resumen .total{padding-top:12px;border-top:1px solid var(--line);font-size:18px;font-weight:700}
.resumen .abono{padding:12px 14px;background:var(--ww);border-radius:12px;font-size:14px;line-height:20px;color:var(--muted)}
.resumen .abono b{color:var(--ink)}
.c-banner{padding:16px 18px;border-radius:14px;background:var(--soft);border:1px solid var(--navy);display:flex;flex-direction:column;gap:4px}
.c-banner.bad{background:#FDECEA;border-color:#C62828}
.c-banner h2{font-size:18px;line-height:24px}
.c-banner p{font-size:15px;line-height:22px;color:var(--muted)}
.c-listo{display:flex;flex-direction:column;gap:16px}
.c-listo h2{font-size:24px;line-height:30px}
.c-listo .pasos-l{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:14px}
.c-listo .pasos-l>li{display:flex;gap:12px;align-items:flex-start}
.c-listo .pasos-l>li>span{flex:none;width:30px;height:30px;border-radius:50%;background:var(--navy);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:15px;font-weight:700}
.c-listo .pasos-l>li>div{flex:1;min-width:0;display:flex;flex-direction:column;gap:8px}
.c-listo .pasos-l b{font-size:16px;line-height:22px}
.c-listo .pasos-l p{font-size:15px;line-height:22px;color:var(--muted)}
.c-banco{display:grid;gap:8px;margin:0}
.c-banco div{display:flex;flex-wrap:wrap;align-items:center;gap:2px 12px;padding:10px 12px;background:var(--ww);border:1px solid var(--line);border-radius:10px}
.c-banco dt{flex:0 0 100%;font-size:12px;line-height:16px;font-weight:700;letter-spacing:.6px;color:var(--muted);text-transform:uppercase}
.c-banco dd{flex:1;margin:0;font-size:17px;line-height:24px;font-weight:700;word-break:break-all}
.c-copiar{min-height:36px;padding:0 12px;background:#fff;border:1px solid var(--navy);border-radius:8px;color:var(--navy);font:inherit;font-size:14px;font-weight:700;cursor:pointer}

@media (min-width:900px){
  .det-hero{padding:16px 0 72px}
  .det-hero .wrap{grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:8px 56px;align-items:start}
  .det-foto{grid-column:2;grid-row:2;position:sticky;top:104px}
  .det-copy{grid-column:1;grid-row:2}
  .det-copy h1{font-size:46px;line-height:52px}
  .det-ctas{flex-direction:row;flex-wrap:wrap;align-items:center}
  .det-ctas .btn{width:auto;padding:0 22px;font-size:16px}
  .kit-opt img{width:72px;height:48px}
  .equipos{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
  .paso-det{grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:48px}
  .paso-det.inv .txt{order:2}
  .pasos-det{gap:56px}
  .paso-det h3{font-size:24px;line-height:30px}
  .paso-det p,.paso-det li{font-size:16px;line-height:25px}
  .funciones{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
  .saber{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
  .otras{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
  .cierre-det .wrap{align-items:center;text-align:center}
  .cierre-det h2{font-size:38px;line-height:44px}
  .cierre-det .det-ctas{justify-content:center}
  .barra-compra{display:none}
  .compra{padding:28px 0 80px}
  .compra .wrap{grid-template-columns:minmax(0,1fr) 360px;gap:32px}
  .compra .cabeza{grid-column:1/-1}
  .compra h1{font-size:36px;line-height:42px}
  .resumen{position:sticky;top:104px}
  .paso-c{padding:26px}
  .c-fields{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 20px}
  .c-field.full{grid-column:1/-1}
  .c-form .btn{align-self:flex-start;padding:0 36px}
  .c-banco{grid-template-columns:repeat(2,minmax(0,1fr))}
}