/* Layout: identidade da marca — preto, dourado e prata. Tema escuro único (a marca é BLACK).
   Hero com diagrama de correia de acessórios em prata e tensor dourado; marcas em cartões
   no formato de etiqueta de caixa de peça. */
:root {
  --bg: #0a0a0b;
  --surface: #121214;
  --surface-2: #1a1a1d;
  --line: #2a2a2f;
  --fg: #f1f1ef;
  --muted: #a4a7ad;
  --silver: #c8cbd0;
  --silver-dim: #6f7379;
  --gold: #cfa54b;
  --gold-hi: #ecd08a;
  --gold-lo: #8d6a22;
  --gold-ink: #17130a;
  --todo: rgba(207,165,75,.18);
  --metal-gold: linear-gradient(135deg, var(--gold-hi) 0%, var(--gold) 45%, var(--gold-lo) 100%);
  --metal-silver: linear-gradient(180deg, #f4f5f7 0%, var(--silver) 55%, #8d9197 100%);
  --font-display: "Big Shoulders Display", "Arial Narrow", "Roboto Condensed", sans-serif;
  --font-body: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "Cascadia Mono", Consolas, monospace;
  --maxw: 1180px;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--bg); }
body {
  background: var(--bg); color: var(--fg);
  font: 400 1rem/1.6 var(--font-body);
  padding-inline: 16px;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: var(--maxw); margin-inline: auto; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--font-display); text-transform: uppercase; line-height: .95; margin: 0; text-wrap: balance; letter-spacing: .01em; }
p { margin: 0; }
.eyebrow { font: 500 .75rem/1 var(--font-mono); letter-spacing: .16em; text-transform: uppercase; color: var(--gold); }
.gold-text { background: var(--metal-gold); -webkit-background-clip: text; background-clip: text; color: transparent; }
.silver-text { background: var(--metal-silver); -webkit-background-clip: text; background-clip: text; color: transparent; }
mark.todo { background: var(--todo); color: inherit; border-bottom: 1px dashed var(--gold); padding: 0 .2em; border-radius: 2px; }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }

/* Botões */
.btn { display: inline-flex; align-items: center; gap: .5rem; font: 600 .95rem/1 var(--font-body); padding: .9rem 1.25rem; border-radius: 3px; text-decoration: none; border: 1px solid transparent; transition: transform .15s ease, background-color .15s ease, border-color .15s ease; }
.btn-primary { background: var(--metal-gold); color: var(--gold-ink); }
.btn-primary:hover { transform: translateY(-1px); }
.btn-ghost { border-color: var(--silver-dim); color: var(--silver); }
.btn-ghost:hover { border-color: var(--silver); background: var(--surface-2); }

/* Cabeçalho */
.topbar { border-bottom: 1px solid var(--line); font: 400 .78rem/1 var(--font-mono); color: var(--muted); }
.topbar .wrap { display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; justify-content: space-between; padding-block: .6rem; }
header.site { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 10; background: rgba(10,10,11,.94); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); margin-inline: -16px; padding-inline: 16px; }
header.site .wrap { display: flex; align-items: center; gap: 1.5rem; padding-block: .75rem; }
.logo img { display: block; height: 40px; width: auto; }
nav.main { display: flex; gap: 1.4rem; margin-left: auto; font-weight: 500; font-size: .93rem; }
nav.main a { text-decoration: none; color: var(--muted); }
nav.main a:hover { color: var(--gold-hi); }
header.site .btn { padding: .65rem 1rem; font-size: .88rem; }
@media (max-width: 860px) { nav.main { display: none; } header.site .btn { margin-left: auto; } .logo img { height: 32px; } }

/* Hero */
.hero { display: grid; grid-template-columns: 1.05fr .95fr; gap: 2.5rem; align-items: center; padding-block: 4rem 3rem; }
.hero > * { min-width: 0; }
.hero h1 { font-size: clamp(2.8rem, 6.4vw, 5.4rem); font-weight: 900; margin-top: 1rem; }
.hero .lead { margin-top: 1.4rem; font-size: 1.12rem; color: var(--muted); max-width: 34rem; }
.hero .actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2rem; }
.drive { width: 100%; height: auto; max-width: 560px; justify-self: end; }
.drive .pulley { fill: url(#pulleyFill); stroke: var(--silver-dim); stroke-width: 3; }
.drive .groove { fill: none; stroke: var(--line); stroke-width: 1.5; }
.drive .hub { fill: var(--bg); stroke: var(--silver); stroke-width: 1.5; }
.drive .spoke { stroke: var(--silver-dim); stroke-width: 3; stroke-linecap: round; }
.drive .belt-body { fill: none; stroke: #1c1c1f; stroke-width: 10; stroke-linejoin: round; }
.drive .belt-edge { fill: none; stroke: var(--silver); stroke-width: 1.2; opacity: .55; }
.drive .belt-ribs { fill: none; stroke: var(--silver-dim); stroke-width: 3; stroke-dasharray: 2 7; animation: run 1.2s linear infinite; }
.drive .lbl { font: 500 11px var(--font-mono); fill: var(--muted); letter-spacing: .08em; }
.drive .lbl-accent { fill: var(--gold); }
.drive .arm { stroke: url(#goldStroke); stroke-width: 8; stroke-linecap: round; }
.drive .tens .pulley { stroke: var(--gold); }
.spin { transform-box: fill-box; transform-origin: center; animation: spin 4s linear infinite; }
@keyframes run { to { stroke-dashoffset: -18; } }
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .drive .belt-ribs, .spin { animation: none; } }
@media (max-width: 860px) { .hero { grid-template-columns: 1fr; padding-block: 2.5rem 2rem; } .drive { justify-self: center; max-width: 440px; } }

/* Faixa de números */
.facts { display: grid; grid-template-columns: repeat(4, 1fr); border-block: 1px solid var(--line); }
.facts div { padding: 1.4rem 1.2rem; border-left: 1px solid var(--line); }
.facts div:first-child { border-left: 0; padding-left: 0; }
.facts b { display: inline-block; font: 800 2.4rem/1 var(--font-display); font-variant-numeric: tabular-nums; }
.facts span { display: block; margin-top: .4rem; color: var(--muted); font-size: .88rem; }
@media (max-width: 760px) { .facts { grid-template-columns: 1fr 1fr; } .facts div:nth-child(3) { border-left: 0; padding-left: 0; } .facts div:nth-child(n+3) { border-top: 1px solid var(--line); } }

/* Seções */
section.block { padding-block: 5rem 1rem; scroll-margin-top: 70px; }
.sec-head { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem 3rem; align-items: end; margin-bottom: 2.5rem; }
.sec-head h2 { font-size: clamp(2.2rem, 4.6vw, 3.6rem); font-weight: 800; margin-top: .7rem; }
.sec-head p { color: var(--muted); max-width: 36rem; }
@media (max-width: 760px) { .sec-head { grid-template-columns: 1fr; } }

/* História */
.story { display: grid; grid-template-columns: 1.1fr .9fr; gap: 3rem; }
.story > * { min-width: 0; }
.story-text { display: grid; gap: 1.1rem; font-size: 1.06rem; max-width: 38rem; }
.story-text p:first-child { font-size: 1.25rem; line-height: 1.5; }
.timeline { list-style: none; margin: 0; padding: 0; border-left: 2px solid var(--line); display: grid; gap: 1.6rem; }
.timeline li { position: relative; padding-left: 1.5rem; }
.timeline li::before { content: ""; position: absolute; left: -7px; top: .35rem; width: 12px; height: 12px; border-radius: 50%; background: var(--bg); border: 2px solid var(--gold); }
.timeline .yr { font: 800 1.6rem/1 var(--font-display); color: var(--silver); }
.timeline p { color: var(--muted); margin-top: .3rem; font-size: .95rem; }
@media (max-width: 860px) { .story { grid-template-columns: 1fr; } }

/* Marcas: cartão no formato de etiqueta de caixa de peça */
.brands { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.brand { background: var(--surface); padding: 1.6rem 1.5rem 1.4rem; display: grid; grid-template-rows: auto auto auto 1fr auto; gap: .9rem; min-width: 0; }
.brand-top { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; font: 500 .72rem/1 var(--font-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.brand-top .since { color: var(--gold); }
.brand h3 { font-size: 2.4rem; font-weight: 900; color: var(--silver); }
.brand .spec { color: var(--gold); font: 600 .9rem/1.3 var(--font-body); margin-top: -.4rem; }
.brand p { color: var(--muted); font-size: .94rem; }
.brand p strong { color: var(--fg); font-weight: 500; }
.media { display: flex; flex-wrap: wrap; gap: .5rem; }
.media a { display: inline-flex; align-items: center; gap: .45rem; font: 500 .8rem/1 var(--font-body); color: var(--fg); text-decoration: none; padding: .5rem .7rem .5rem .55rem; border: 1px solid var(--line); border-radius: 3px; transition: border-color .15s ease; }
.media a:hover { border-color: var(--gold); }
.media svg { width: 16px; height: 16px; flex: none; fill: var(--gold); }
.codes { display: flex; flex-wrap: wrap; gap: .4rem; padding-top: .9rem; border-top: 1px dashed var(--line); }
.codes span { font: 500 .74rem/1 var(--font-mono); padding: .35rem .5rem; background: var(--surface-2); color: var(--silver); border-radius: 2px; }
.brand.feature { grid-column: span 2; background: linear-gradient(160deg, #1c1a15 0%, var(--surface) 60%); }
.brand.feature h3 { font-size: 3.4rem; }
.brand.wide { grid-column: 1 / -1; grid-template-columns: 1fr 1.6fr; grid-template-rows: auto; column-gap: 2.5rem; align-items: start; }
.brand.wide > .col { display: grid; gap: .9rem; min-width: 0; }
@media (max-width: 960px) { .brands { grid-template-columns: 1fr 1fr; } .brand.wide { grid-template-columns: 1fr; } }
@media (max-width: 620px) { .brands { grid-template-columns: 1fr; } .brand.feature { grid-column: auto; } }
.note { margin-top: 1rem; color: var(--muted); font-size: .8rem; }

/* Produtos */
.cats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.cat { display: grid; grid-template-columns: auto 1fr; gap: .4rem 1rem; padding: 1.3rem; border: 1px solid var(--line); background: var(--surface); border-radius: 3px; text-decoration: none; transition: border-color .15s ease, transform .15s ease; min-width: 0; }
.cat:hover { border-color: var(--gold); transform: translateY(-2px); }
.cat svg { grid-row: span 3; width: 42px; height: 42px; stroke: var(--gold); fill: none; stroke-width: 1.8; }
.cat h3 { font-size: 1.5rem; font-weight: 800; color: var(--silver); }
.cat p { color: var(--muted); font-size: .88rem; }
.cat .go { font: 500 .75rem/1 var(--font-mono); color: var(--gold); }
@media (max-width: 960px) { .cats { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .cats { grid-template-columns: 1fr; } }

/* Confiança */
.trust { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; }
.trust div { display: grid; gap: .5rem; align-content: start; }
.trust b { font: 800 1.35rem/1.05 var(--font-display); text-transform: uppercase; color: var(--silver); }
.trust p { color: var(--muted); font-size: .92rem; }
.trust .ico { width: 30px; height: 30px; stroke: var(--gold); fill: none; stroke-width: 1.8; }
@media (max-width: 860px) { .trust { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .trust { grid-template-columns: 1fr; } }

/* Onde comprar */
.buy { margin-top: 5rem; border: 1px solid var(--gold-lo); background: radial-gradient(90% 120% at 0% 0%, rgba(207,165,75,.14), transparent 60%),linear-gradient(135deg, #1d1810 0%, var(--surface) 55%); border-radius: 4px; padding: 3rem clamp(1.4rem, 4vw, 3.5rem); display: grid; grid-template-columns: 1.3fr 1fr; gap: 2rem; align-items: center; }
.buy > * { min-width: 0; }
.buy h2 { font-size: clamp(2.2rem, 4.6vw, 3.6rem); font-weight: 900; }
.buy p { margin-top: 1rem; max-width: 32rem; color: var(--muted); }
.buy .channels { display: grid; gap: .7rem; }
.buy .ch { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 1rem 1.2rem; background: var(--metal-gold); color: var(--gold-ink); border-radius: 3px; text-decoration: none; font-weight: 600; }
.buy .ch small { font: 400 .75rem/1.2 var(--font-mono); display: block; margin-top: .2rem; opacity: .8; }
.buy .ch.soon { background: transparent; color: var(--silver); border: 1px dashed var(--silver-dim); }
@media (max-width: 760px) { .buy { grid-template-columns: 1fr; } }

/* Rodapé */
footer { margin-top: 5rem; border-top: 1px solid var(--line); padding-block: 2.5rem 3rem; color: var(--muted); font-size: .88rem; }
footer .wrap { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 2rem; }
footer .flogo { height: 54px; width: auto; display: block; }
footer h4 { margin: 0 0 .7rem; font: 500 .72rem/1 var(--font-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--gold); }
footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .4rem; }
footer a { text-decoration: none; }
footer a:hover { color: var(--fg); }
@media (max-width: 760px) { footer .wrap { grid-template-columns: 1fr; } }