/* RA Peças — landing cinematográfica (design system R&A) */
:root {
  --gray-950: #050505;
  --gray-900: #0c0c0d;
  --gray-850: #121214;
  --gray-800: #19191c;
  --gray-500: #4a4a52;
  --gray-400: #71717a;
  --gray-300: #9c9ca4;
  --red-600: #7f0100;
  --red-500: #990100;
  --red-400: #bd1a15;
  --red-300: #e84a42;
  --text-strong: #f4f4f6;
  --text-body: #c8c8ce;
  --text-muted: #8a8a93;
  --border-subtle: #26262b;
  --accent: var(--red-500);
  --font-display: 'Archivo', 'Arial Narrow', sans-serif;
  --font-body: 'Poppins', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
  --container: 1120px;
  --pad: clamp(16px, 4vw, 24px);
  --ease-out: cubic-bezier(0.2, 0, 0, 1);
}

* { box-sizing: border-box; }
/* Sem scroll-behavior:smooth — conflitua com o Lenis (cada set de scrollTop
   viraria animação CSS e o scroll fica mole/preso). O Lenis é que suaviza. */
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--gray-900);
  color: var(--text-body);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
::selection { background: var(--accent); color: #fff; }
img, canvas { max-width: 100%; display: block; }

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--accent); color: #fff; padding: 12px 18px; font-weight: 600; text-decoration: none;
}
.skip-link:focus { left: 0; }

/* ---------- Header ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 40;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px var(--pad);
  background: linear-gradient(rgba(5,5,5,.85), rgba(5,5,5,0));
  border-top: 3px solid var(--accent);
}
.wordmark {
  font-family: var(--font-display); font-weight: 800; font-size: 20px;
  letter-spacing: .02em; text-transform: uppercase; line-height: 1;
  color: var(--text-strong); text-decoration: none; white-space: nowrap;
}
.wordmark span { color: var(--red-300); }
.site-header nav { display: flex; gap: clamp(12px, 3vw, 28px); align-items: center; }
.site-header nav a {
  color: var(--text-body); text-decoration: none; font-size: 13px; font-weight: 600;
  letter-spacing: .04em; text-transform: uppercase; padding: 8px 0;
}
.site-header nav a:hover, .site-header nav a:focus-visible { color: var(--text-strong); text-decoration: underline; }
.nav-phone { color: var(--red-300) !important; }
@media (max-width: 640px) { .site-header nav a:not(.nav-phone) { display: none; } }

/* ---------- Botões ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 0 24px; border: 1px solid transparent; border-radius: 4px;
  font-family: var(--font-body); font-weight: 600; font-size: 15px;
  text-decoration: none; cursor: pointer; white-space: nowrap;
  transition: background .15s var(--ease-out), border-color .15s var(--ease-out);
}
.btn--primary { background: var(--accent); color: #fff; }
.btn--primary:hover, .btn--primary:focus-visible { background: var(--red-400); }
.btn--primary:active { background: var(--red-600); }
.btn--ghost { background: transparent; color: var(--text-strong); border-color: var(--gray-500); }
.btn--ghost:hover, .btn--ghost:focus-visible { background: var(--gray-800); }
.btn--lg { min-height: 56px; padding: 0 34px; font-size: 17px; }
:focus-visible { outline: 2px solid var(--red-400); outline-offset: 2px; }

/* ---------- Secção scrub (canvas fixo) ---------- */
.scrub { position: relative; height: 500vh; background: var(--gray-950); }
.scrub__stage { position: sticky; top: 0; height: 100vh; height: 100svh; overflow: hidden; }
#car-canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.scrub__vignette {
  position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(ellipse at center, transparent 55%, rgba(5,5,5,.75) 100%);
}
.scrub__copy {
  position: absolute; z-index: 5; left: var(--pad); right: var(--pad);
  max-width: 680px; opacity: 0; margin: 0 auto;
}
.scrub__copy--1 { top: 22vh; left: clamp(16px, 8vw, 120px); right: auto; }
.eyebrow {
  margin: 0 0 12px; font-size: 12px; font-weight: 600; letter-spacing: .08em;
  text-transform: uppercase; color: var(--red-300);
}
.scrub__copy h1 {
  margin: 0 0 12px; font-family: var(--font-display); font-weight: 900;
  font-size: clamp(38px, 6.5vw, 72px); line-height: 1.02; letter-spacing: .02em;
  text-transform: uppercase; color: var(--text-strong); text-wrap: balance;
}
.lead { margin: 0 0 26px; font-size: clamp(15px, 2vw, 18px); color: var(--text-muted); max-width: 460px; }
.scrub__copy--2, .scrub__copy--3, .scrub__copy--4 { top: 50%; transform: translateY(-50%); text-align: center; left: var(--pad); right: var(--pad); }
.line {
  margin: 0; font-family: var(--font-display); font-weight: 800;
  font-size: clamp(26px, 4.5vw, 52px); letter-spacing: .02em; text-transform: uppercase;
  color: var(--text-strong); text-shadow: 0 2px 24px rgba(5,5,5,.8);
}
.scrub__hint {
  position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%);
  display: flex; align-items: center; gap: 10px; z-index: 5;
  font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--text-muted);
}
.scrub__hint span { display: block; width: 1px; height: 34px; background: linear-gradient(var(--red-300), transparent); animation: hint 1.6s var(--ease-out) infinite; }
@keyframes hint { 0% { transform: scaleY(.2); opacity: 0 } 40% { transform: scaleY(1); opacity: 1 } 100% { transform: scaleY(.2); opacity: 0 } }

/* ---------- Secções de conteúdo ---------- */
.section { max-width: var(--container); margin: 0 auto; padding: clamp(64px, 10vw, 120px) var(--pad); }
.section--alt { max-width: none; background: var(--gray-950); border-top: 1px solid var(--border-subtle); border-bottom: 1px solid var(--border-subtle); }
.section--alt > * { max-width: var(--container); margin-left: auto; margin-right: auto; }
.section h2 {
  margin: 0 0 10px; font-family: var(--font-display); font-weight: 800;
  font-size: clamp(28px, 4vw, 44px); letter-spacing: .02em; text-transform: uppercase;
  color: var(--text-strong); line-height: 1.05; text-wrap: balance;
}
.section-lead { margin: 0 0 36px; color: var(--text-muted); max-width: 560px; }

/* Categorias */
.cat-grid { list-style: none; margin: 36px 0 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; }
.cat-grid a {
  display: flex; align-items: baseline; gap: 14px; min-height: 68px; padding: 20px 18px;
  background: var(--gray-850); border: 1px solid var(--border-subtle); border-radius: 4px;
  font-family: var(--font-display); font-weight: 800; font-size: 20px; letter-spacing: .02em;
  text-transform: uppercase; color: var(--text-strong); text-decoration: none;
  transition: background .15s var(--ease-out), border-color .15s var(--ease-out);
}
.cat-grid a:hover, .cat-grid a:focus-visible { background: var(--gray-800); border-color: var(--gray-500); }
.cat-num { font-family: var(--font-mono); font-weight: 400; font-size: 12px; color: var(--red-300); }

/* Como funciona */
.steps { list-style: none; margin: 40px auto 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 28px; }
.steps h3 { margin: 14px 0 6px; font-family: var(--font-display); font-weight: 800; font-size: 17px; letter-spacing: .02em; text-transform: uppercase; color: var(--text-strong); }
.steps p { margin: 0; font-size: 14px; color: var(--text-muted); }
.step-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border: 1px solid var(--red-500); border-radius: 4px;
  font-family: var(--font-display); font-weight: 800; font-size: 18px; color: var(--red-300);
}

/* Confiança */
.trust { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 28px; margin-top: 36px; }
.trust-item { border-top: 3px solid var(--accent); padding-top: 18px; }
.trust-item h3 { margin: 0 0 8px; font-family: var(--font-display); font-weight: 800; font-size: 18px; letter-spacing: .02em; text-transform: uppercase; color: var(--text-strong); }
.trust-item p { margin: 0; font-size: 14px; color: var(--text-muted); }
.trust-item a { color: var(--red-300); }

/* Formulário */
.pedido-form { max-width: 780px; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 16px; margin-bottom: 16px; }
.pedido-form label { display: flex; flex-direction: column; gap: 6px; font-size: 12px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 16px; }
.form-grid label { margin-bottom: 0; }
.pedido-form input, .pedido-form textarea {
  width: 100%; padding: 12px 14px; min-height: 46px;
  background: var(--gray-950); color: var(--text-strong);
  border: 1px solid #3a3a41; border-radius: 2px;
  font-family: var(--font-body); font-size: 15px;
}
.pedido-form textarea { resize: vertical; }
.pedido-form input.mono { font-family: var(--font-mono); }
.pedido-form input:focus, .pedido-form textarea:focus { outline: none; border-color: var(--red-400); }
.form-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }
.form-note { margin-top: 12px; font-size: 12px; color: var(--gray-400); }
input:invalid:not(:placeholder-shown) { border-color: var(--red-400); }

/* Encerramento */
.closing { text-align: center; padding-top: clamp(90px, 14vw, 160px); padding-bottom: clamp(90px, 14vw, 160px); }
.closing h2 { font-size: clamp(30px, 5vw, 56px); margin-bottom: 30px; }

/* Footer */
.site-footer { background: var(--gray-950); border-top: 1px solid var(--border-subtle); padding: 40px var(--pad); }
.wordmark--sm { font-size: 17px; margin-bottom: 24px; }
.footer-cols { display: flex; flex-wrap: wrap; gap: 40px; max-width: var(--container); }
.footer-cols h4 { margin: 0 0 6px; font-size: 11px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--gray-500); }
.footer-cols p { margin: 0; font-size: 13px; color: var(--text-muted); }
.footer-cols a { color: var(--text-muted); }
.footer-legal { margin: 26px 0 0; padding-top: 16px; border-top: 1px solid var(--border-subtle); font-size: 12px; color: var(--gray-500); }

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .scrub { height: auto; }
  .scrub__stage { position: relative; height: 100vh; }
  .scrub__copy { opacity: 1 !important; position: relative; inset: auto; padding: 24vh var(--pad) 0 clamp(16px, 8vw, 120px); }
  .scrub__copy--2, .scrub__copy--3, .scrub__copy--4, .scrub__hint { display: none; }
  * { animation: none !important; transition: none !important; }
}