/* f1scaleforme — design tokens y componentes compartidos entre Home, Catálogo, Producto y Carrito */
:root{
  --bg:#FFFFFF; --surface:#FFFFFF; --surface-2:#F3F5FA;
  --ink:#0B1A3D; --muted:#55617F; --line:#E1E6F0;
  /* --accent: relleno (botones, badges). --accent-text: rojo para texto sobre la página. --accent-hot: rojo para texto sobre azul marino. */
  --accent:#E10600; --accent-ink:#FFFFFF; --accent-text:#D30500; --accent-hot:#FF5A4F; --accent-soft:#FFE3E0;
  --stripe-2:#10285F;
  --board:#10285F; --board-deep:#0A1B47; --board-lift:#1A3C8F; --board-line:#2D4485; --chalk:#FFFFFF; --chalk-dim:#B9C4E0;
  --danger:#B42318; --success:#17803F;
  --radius-lg:18px; --radius-md:12px; --radius-sm:8px;
  --font-display:'Oswald','Arial Narrow',sans-serif;
  --font-body:'Public Sans','Segoe UI',sans-serif;
  --font-mono:'IBM Plex Mono','SFMono-Regular',monospace;
  --font-num:'Oswald','Arial Narrow',sans-serif;   /* cifras de precios y medidas */
}
/* Tema claro por defecto (blanco). El oscuro solo se activa con data-theme="dark". */
:root[data-theme="dark"]{
  --bg:#071230; --surface:#0D1B42; --surface-2:#12244F;
  --ink:#F4F6FB; --muted:#9DABCE; --line:#22376E;
  --accent-text:#FF5A4F; --accent-soft:#3A1622; --stripe-2:#F4F6FB; --danger:#FF7B70;
}
*{ box-sizing:border-box; }
body{ margin:0; background:var(--bg); color:var(--ink); font-family:var(--font-body); }
h1,h2,h3,.font-display{ font-family:var(--font-display); text-transform:uppercase; letter-spacing:.02em; text-wrap:balance; }
.font-mono{ font-family:var(--font-mono); font-variant-numeric:tabular-nums; }
.num{ font-family:var(--font-num); font-weight:600; font-size:1.08em; letter-spacing:.015em; font-variant-numeric:lining-nums tabular-nums; }
a{ color:inherit; }
::selection{ background:var(--accent-soft); color:var(--ink); }
:focus-visible{ outline:2px solid var(--accent); outline-offset:2px; border-radius:4px; }

.shell{ max-width:1360px; margin:0 auto; padding:0 20px; }

/* Franja superior */
.announce{ background:var(--accent); color:var(--accent-ink); font-family:var(--font-mono); font-size:.72rem; letter-spacing:.08em; text-transform:uppercase; text-align:center; padding:.45rem 1rem; }

/* Header */
header.site{ position:sticky; top:0; z-index:40; background:color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter:blur(10px); }
header.site::after{ content:""; position:absolute; left:0; right:0; bottom:0; height:3px; background:linear-gradient(90deg, var(--accent) 0 22%, var(--stripe-2) 22% 24.5%, var(--line) 24.5%); }
/* Logo: insignia roja F1 con líneas de velocidad + nombre en dos pesos */
.logo{ display:flex; align-items:center; gap:.65rem; padding-left:14px; line-height:1; text-decoration:none; }
.logo-mark{ position:relative; isolation:isolate; display:inline-flex; align-items:center; justify-content:center; padding:.36rem .72rem .36rem .62rem; font-family:var(--font-display); font-weight:700; font-size:1.45rem; letter-spacing:.02em; color:var(--accent-ink); }
.logo-mark::before{ content:""; position:absolute; inset:0; z-index:-1; background:var(--accent); border-radius:3px; transform:skewX(-14deg); }
.logo-mark::after{ content:""; position:absolute; right:calc(100% + 3px); top:50%; width:11px; height:17px; translate:0 -50%; transform:skewX(-14deg);
  background:
    linear-gradient(var(--accent), var(--accent)) 100% 0 / 100% 3px no-repeat,
    linear-gradient(var(--accent), var(--accent)) 100% 50% / 68% 3px no-repeat,
    linear-gradient(var(--accent), var(--accent)) 100% 100% / 40% 3px no-repeat; }
.logo-word{ display:flex; flex-direction:column; gap:.3rem; }
.logo-name{ font-family:var(--font-display); font-weight:700; font-size:1.4rem; letter-spacing:.01em; color:var(--ink); }
.logo-name span{ font-weight:400; color:var(--accent-text); }
.logo-tag{ font-family:var(--font-mono); font-size:.56rem; letter-spacing:.16em; text-transform:uppercase; color:var(--muted); white-space:nowrap; }
@media (max-width:480px){ .logo-tag{ display:none; } .logo-name{ font-size:1.2rem; } .logo-mark{ font-size:1.25rem; } }
.search-input{ background:var(--surface); border:1px solid var(--line); border-radius:999px; }
.search-input:focus-within{ border-color:var(--accent); }
.icon-btn{ border:1px solid var(--line); background:var(--surface); border-radius:999px; transition:border-color .15s ease, color .15s ease; }
.icon-btn:hover{ border-color:var(--accent); color:var(--accent-text); }

/* Botón "Volver" y etiquetas seleccionables */
.back-btn{ display:inline-flex; align-items:center; gap:.4rem; padding:.45rem .95rem .45rem .7rem; border:1px solid var(--line); border-radius:999px; background:var(--surface); color:var(--ink); font-size:.85rem; font-weight:600; text-decoration:none; cursor:pointer; transition:border-color .15s ease, color .15s ease; }
.back-btn:hover{ border-color:var(--accent); color:var(--accent-text); }
.pill{ display:inline-flex; align-items:center; gap:.45rem; padding:.35rem .85rem; border:1px solid var(--line); border-radius:999px; background:var(--surface); color:var(--ink); font-size:.8rem; font-weight:600; cursor:pointer; text-decoration:none; transition:border-color .15s ease, color .15s ease; }
.pill:hover{ border-color:var(--accent); color:var(--accent-text); }
.pill[aria-pressed="true"]{ background:var(--accent); border-color:var(--accent); color:var(--accent-ink); }
.pill i{ width:9px; height:9px; border-radius:99px; flex:none; }
.pill .n{ font-family:var(--font-mono); font-size:.7rem; opacity:.7; }

/* Hero */
.hero{ background:linear-gradient(120deg, var(--board-deep) 0%, var(--board) 55%, var(--board-lift) 100%); color:var(--chalk); border-radius:var(--radius-lg); overflow:hidden; position:relative; }
.hero-grid{ background-image:
    repeating-linear-gradient(0deg, var(--board-line) 0 1px, transparent 1px 44px),
    repeating-linear-gradient(90deg, var(--board-line) 0 1px, transparent 1px 44px);
  opacity:.35; position:absolute; inset:0; }
@media (min-width:768px){
  .hero::before{ content:""; position:absolute; inset:0; pointer-events:none;
    background:linear-gradient(105deg, transparent 0 57%, var(--accent) 57% 61%, transparent 61% 63%, #FFFFFF 63% 64%, transparent 64%); }
}
.chip{ font-family:var(--font-mono); font-size:.72rem; letter-spacing:.06em; border:1px solid var(--board-line); border-radius:999px; padding:.35rem .7rem; color:var(--chalk-dim); background:transparent; cursor:pointer; }
.chip:hover{ border-color:var(--chalk-dim); }
.chip.active{ background:var(--accent); border-color:var(--accent); color:var(--accent-ink); }

/* Toolbar */
.toolbar{ border:1px solid var(--line); background:var(--surface); border-radius:var(--radius-md); }
select, .price-input{ background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-sm); color:var(--ink); }

/* Sidebar filters */
aside.filters{ background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-lg); height:fit-content; }
.filter-section + .filter-section{ border-top:1px solid var(--line); }
.filter-title{ font-family:var(--font-display); font-size:.82rem; letter-spacing:.06em; color:var(--muted); }
.filter-scroll{ max-height:190px; overflow-y:auto; scrollbar-width:thin; scrollbar-color:var(--line) transparent; }
.filter-scroll::-webkit-scrollbar{ width:6px; }
.filter-scroll::-webkit-scrollbar-thumb{ background:var(--line); border-radius:99px; }
.opt{ display:flex; align-items:center; justify-content:space-between; gap:.5rem; padding:.32rem 0; font-size:.88rem; cursor:pointer; }
.opt input{ accent-color:var(--accent); }
.opt .count{ font-family:var(--font-mono); font-size:.72rem; color:var(--muted); }
.mini-search{ background:var(--surface-2); border:1px solid var(--line); border-radius:var(--radius-sm); }

/* Product grid */
.grid-products{ display:grid; grid-template-columns:repeat(auto-fill, minmax(240px, 1fr)); gap:20px; }
.card{ background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-lg); overflow:hidden; display:flex; flex-direction:column; transition:border-color .15s ease, box-shadow .15s ease; }
.card:hover{ border-color:var(--accent); box-shadow:0 14px 28px -18px rgba(16,40,95,.6); }
.card:hover .board{ transform:translateY(-2px); }
.board{ background:linear-gradient(160deg, var(--board) 0%, var(--board-deep) 100%); color:var(--chalk); aspect-ratio:4/3; position:relative; padding:14px; display:flex; flex-direction:column; justify-content:space-between; transition:transform .18s ease; }
.board::before{ content:""; position:absolute; inset:0; background-image:repeating-linear-gradient(0deg, rgba(255,255,255,.04) 0 1px, transparent 1px 8px); pointer-events:none; }
.team-bar{ position:absolute; top:0; left:0; right:0; height:5px; }
.board-code{ font-family:var(--font-display); font-size:2.1rem; font-weight:700; line-height:1; letter-spacing:.02em; }
.board-num{ font-family:var(--font-mono); font-size:.78rem; color:var(--chalk-dim); }
.board-meta{ font-family:var(--font-mono); font-size:.68rem; color:var(--chalk-dim); display:flex; justify-content:space-between; }
.scale-badge{ position:absolute; top:12px; right:12px; background:rgba(6,18,50,.6); border:1px solid var(--board-line); color:var(--chalk); font-family:var(--font-mono); font-size:.68rem; padding:.2rem .5rem; border-radius:999px; }
.price-tag{ font-family:var(--font-num); font-weight:600; font-size:1.08em; letter-spacing:.015em; font-variant-numeric:lining-nums tabular-nums; }
.buy-btn{ background:var(--accent); color:var(--accent-ink); border-radius:var(--radius-sm); font-family:var(--font-display); font-weight:600; letter-spacing:.06em; text-transform:uppercase; border:none; cursor:pointer; box-shadow:0 8px 18px -10px rgba(225,6,0,.75); transition:transform .15s ease, background .15s ease; }
.buy-btn:hover{ background:#F01A0F; transform:translateY(-1px); }
.buy-btn.added{ background:var(--success); }

.skip-link{ position:absolute; left:-999px; top:0; background:var(--accent); color:var(--accent-ink); padding:.5rem 1rem; border-radius:0 0 8px 0; }
.skip-link:focus{ left:0; z-index:100; }

/* Tarjeta con foto real */
.board.has-photo{ padding:0; background:var(--surface-2); }
.board.has-photo::before{ display:none; }
.board-photo{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; }
.board.has-photo .team-bar, .board.has-photo .scale-badge, .photo-flag{ z-index:2; }
.photo-flag{ position:absolute; left:12px; bottom:12px; line-height:0; }

/* Banderas de los pilotos */
.flag{ display:inline-block; flex:none; vertical-align:middle; height:var(--flag-h, 14px); width:calc(var(--flag-h, 14px) * 1.5); border-radius:2px; box-shadow:0 0 0 1px rgba(11,26,61,.22); }
.collection-flag{ position:absolute; top:20px; right:18px; z-index:2; }
.flag-badge{ position:absolute; right:-6px; bottom:-3px; line-height:0; }

/* Colecciones por piloto: una pila de pizarras que lleva a todas las de ese piloto */
.collection{ position:relative; isolation:isolate; display:flex; flex-direction:column; text-decoration:none; background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-lg); transition:transform .15s ease, border-color .15s ease, box-shadow .15s ease; }
.collection::before, .collection::after{ content:""; position:absolute; z-index:-1; height:34px; border-radius:12px 12px 0 0; }
.collection::before{ top:-9px; left:14px; right:14px; background:color-mix(in srgb, var(--board) 55%, #fff); }
.collection::after{ top:-17px; left:28px; right:28px; background:color-mix(in srgb, var(--board) 28%, #fff); }
.collection:hover{ transform:translateY(-3px); border-color:var(--accent); box-shadow:0 14px 28px -18px rgba(16,40,95,.55); }
.collection-board{ position:relative; overflow:hidden; aspect-ratio:16 / 9; padding:18px 18px 14px; display:flex; flex-direction:column; justify-content:space-between; color:var(--chalk); background:linear-gradient(160deg, var(--board) 0%, var(--board-deep) 100%); border-radius:calc(var(--radius-lg) - 1px) calc(var(--radius-lg) - 1px) 0 0; }
.collection-board::before{ content:""; position:absolute; inset:0; background-image:repeating-linear-gradient(0deg, rgba(255,255,255,.04) 0 1px, transparent 1px 8px); pointer-events:none; }
.collection-bar{ position:absolute; top:0; left:0; right:0; height:6px; display:flex; z-index:2; }
.collection-board.has-photo::before{ content:none; }
.collection-photo{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; z-index:0; }
.collection-board.has-photo::after{ content:""; position:absolute; inset:0; z-index:1; pointer-events:none; background:linear-gradient(to bottom, rgba(6,18,50,.72) 0%, rgba(6,18,50,.08) 38%, rgba(6,18,50,.08) 55%, rgba(6,18,50,.85) 100%); }
.collection-bar i{ flex:1; }
.collection-code{ position:relative; z-index:2; font-family:var(--font-display); font-weight:700; font-size:clamp(2.6rem, 5vw, 3.6rem); line-height:1; letter-spacing:.02em; }
.collection-board .board-meta{ position:relative; z-index:2; }
.collection-info{ display:flex; flex-direction:column; gap:.3rem; padding:14px 16px 16px; min-width:0; }
.collection-name{ font-family:var(--font-display); font-weight:700; font-size:1.25rem; line-height:1.1; text-transform:uppercase; letter-spacing:.02em; color:var(--ink); }
.collection-teams{ font-size:.78rem; color:var(--muted); white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.collection-cta{ display:inline-block; align-self:flex-start; margin-top:.55rem; padding:.5rem .9rem; font-size:.78rem; }

/* Pie: bandera de cuadros */
footer.site{ position:relative; padding-top:3rem; }
footer.site::before{ content:""; position:absolute; top:0; left:0; right:0; height:16px;
  background:conic-gradient(var(--ink) 25%, transparent 0 50%, var(--ink) 0 75%, transparent 0) 0 0 / 16px 16px; }

@media (max-width:900px){
  #filtersAside{ position:fixed; inset:0 20% 0 0; z-index:50; transform:translateX(-105%); transition:transform .22s ease; overflow-y:auto; border-radius:0; }
  #filtersAside.open{ transform:translateX(0); }
  #filtersBackdrop{ display:none; position:fixed; inset:0; background:rgba(0,0,0,.4); z-index:45; }
  #filtersBackdrop.open{ display:block; }
}
@media (prefers-reduced-motion: reduce){
  *{ transition:none !important; animation:none !important; }
}