/* RGR Pneumáticos — site
   Layout: cinematic dark industrial; full-bleed scenes alternating with a 1240px reading grid. */
/* RGR Pneumáticos — identidade: azul RGR #004177 + amarelo RGR #FBBA00 (cores do logo) */
:root {
  --ink: #050f1b;
  --ink-2: #081829;
  --panel: #0c2036;
  --navy: #004177;
  --line: rgba(190, 214, 240, 0.13);
  --line-2: rgba(190, 214, 240, 0.24);
  --text: #edf2f7;
  --text-2: #c9d5e2;
  --muted: #9cafc2;
  --dim: #6a7f95;
  --yellow: #fbba00;
  --yellow-ink: #fbba00;
  --brass: #d8a94a;
  --gold: linear-gradient(120deg, #ffd04d 0%, #fbba00 40%, #e0a000 100%);
  --display: "Saira", "Arial Narrow", Arial, sans-serif;
  --body: "Barlow", "Segoe UI", Arial, sans-serif;
  --mono: "Barlow Semi Condensed", "Barlow", Arial, sans-serif;
  --wrap: 1240px;
  --r: 3px;
  --field: rgba(255,255,255,.04);
  --field-2: rgba(255,255,255,.07);
  --card-a: rgba(255,255,255,.035);
  --card-b: rgba(255,255,255,.012);
  --tile-a: #0c2139;
  --tile-b: #081729;
  --hero-a: #030b15;
  --hero-b: #06172a;
  --cta-a: #004177;
  --cta-b: #062240;
  --foot: #030a13;
  --marq: #2f4760;
  --gridc: rgba(140,180,230,.06);
  --ov: 5,15,27;
  --shadow: rgba(0,0,0,.55);
  color-scheme: dark;
}
/* Versão "aço": nem branca nem escura — cinza-azulado de metal escovado; destaques em azul RGR */
:root[data-theme="light"] {
  --ink: #c9d1da;
  --ink-2: #bec7d1;
  --panel: #d9dfe6;
  --line: rgba(0, 45, 90, 0.16);
  --line-2: rgba(0, 45, 90, 0.30);
  --text: #0b2036;
  --text-2: #1c3550;
  --muted: #34495f;
  --dim: #53667b;
  --yellow-ink: #004177;
  --gold: linear-gradient(120deg, #004177 0%, #0a5a9e 100%);
  --field: rgba(255,255,255,.35);
  --field-2: rgba(255,255,255,.5);
  --card-a: rgba(255,255,255,.42);
  --card-b: rgba(255,255,255,.22);
  --tile-a: #dbe1e7;
  --tile-b: #ccd4dd;
  --hero-a: #d3dae2;
  --hero-b: #c4cdd7;
  --cta-a: #004177;
  --cta-b: #00315a;
  --foot: #b3bdc8;
  --marq: #8193a7;
  --gridc: rgba(0,45,90,.07);
  --ov: 201,209,218;
  --shadow: rgba(10,25,45,.30);
  color-scheme: light;
}
.logo-light { display: none; }
:root[data-theme="light"] .logo-dark { display: none; }
:root[data-theme="light"] .logo-light { display: block; }
.theme-btn { display: inline-grid; place-items: center; width: 42px; height: 42px; border-radius: 3px; border: 1px solid var(--line-2); background: var(--field); color: var(--text); cursor: pointer; flex: none; transition: border-color .2s, color .2s; }
.theme-btn:hover { border-color: var(--yellow); color: var(--yellow-ink); }
.theme-btn svg { width: 18px; height: 18px; }
.theme-btn .sun { display: none; }
:root[data-theme="light"] .theme-btn .sun { display: block; }
:root[data-theme="light"] .theme-btn .moon { display: none; }
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--ink); color: var(--text); font: 400 17px/1.6 var(--body); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img, video, canvas { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3, h4 { font-family: var(--display); font-weight: 700; line-height: 1.02; margin: 0; letter-spacing: -0.01em; text-wrap: balance; font-stretch: 112%; }
p { margin: 0; }
:focus-visible { outline: 2px solid var(--yellow); outline-offset: 3px; border-radius: 2px; }
::selection { background: var(--yellow); color: #111; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding-inline: clamp(20px, 4vw, 48px); }
.eyebrow { font: 600 13px/1 var(--mono); letter-spacing: 0.16em; text-transform: uppercase; color: var(--yellow-ink); display: inline-flex; align-items: center; gap: 12px; }
.eyebrow::before { content: ""; width: 22px; height: 6px; background: var(--yellow); transform: skewX(-24deg); flex: none; }
.lead { color: var(--muted); font-size: clamp(17px, 1.6vw, 20px); max-width: 60ch; }
.gold { background: var(--gold); -webkit-background-clip: text; background-clip: text; color: transparent; }
.mono { font-family: var(--mono); }
.tnum { font-variant-numeric: tabular-nums; }

/* buttons */
.btn { --b: var(--yellow); display: inline-flex; align-items: center; gap: 12px; padding: 15px 22px 15px 24px; border-radius: 3px; font: 600 15px/1 var(--body); text-decoration: none; border: 1px solid transparent; cursor: pointer; transition: transform .25s, background .25s, color .25s, border-color .25s; }
.btn svg { width: 16px; height: 16px; transition: transform .25s; }
.btn:hover svg { transform: translateX(4px); }
.btn.primary { background: var(--yellow); color: #0a0f14; }
.btn.primary:hover { background: #ffcb2e; }
.btn.ghost { border-color: var(--line-2); color: var(--text); background: var(--field); backdrop-filter: blur(8px); }
.btn.ghost:hover { border-color: var(--yellow-ink); color: var(--yellow-ink); }

/* header */
.site-head { position: fixed; inset: 0 0 auto 0; z-index: 50; padding-top: env(safe-area-inset-top, 0px); transition: background .35s, border-color .35s, backdrop-filter .35s; border-bottom: 1px solid transparent; }
.site-head.solid { background: rgba(var(--ov),.82); backdrop-filter: blur(14px) saturate(140%); border-bottom-color: var(--line); }
.site-head .bar { display: flex; align-items: center; gap: 28px; height: 92px; }
.site-head .logo img { height: 48px; width: auto; }
.site-head nav { display: flex; gap: 4px; margin-left: auto; }
.site-head nav a { text-decoration: none; color: var(--muted); font: 500 14px/1 var(--body); padding: 10px 14px; border-radius: 3px; transition: color .2s, background .2s; }
.site-head nav a:hover, .site-head nav a[aria-current="page"] { color: var(--text); background: var(--field-2); }
.site-head .btn { padding: 12px 18px; font-size: 14px; }
.menu-btn { display: none; margin-left: auto; background: none; border: 1px solid var(--line-2); color: var(--text); border-radius: 3px; padding: 10px 14px; font: 500 14px var(--body); }
@media (max-width: 920px) {
  .site-head .bar { height: 76px; }
  .site-head .logo img { height: 40px; }
  .site-head nav, .site-head .head-cta { display: none; }
  .menu-btn { display: inline-flex; margin-left: 0; }
  .theme-btn { margin-left: auto; }
  .site-head.open nav { display: flex; position: absolute; top: 76px; left: 0; right: 0; flex-direction: column; padding: 12px 20px 24px; background: rgba(var(--ov),.97); border-bottom: 1px solid var(--line); }
  .site-head.open nav a { font-size: 18px; padding: 14px 6px; border-radius: 0; border-bottom: 1px solid var(--line); }
}

/* sections */
section { position: relative; }
.pad { padding-block: clamp(80px, 11vw, 160px); }
.sec-head { display: grid; gap: 22px; margin: 0 auto clamp(40px, 6vw, 72px); max-width: 900px; justify-items: center; text-align: center; }
.sec-head .lead { margin-inline: auto; }
.sec-head .eyebrow::after, .page-hero .eyebrow::after { content: ""; width: 22px; height: 6px; background: var(--yellow); transform: skewX(-24deg); flex: none; }
.sec-head h2 { font-size: clamp(38px, 5.6vw, 84px); }
.rule { height: 1px; background: linear-gradient(90deg, transparent, var(--line-2), transparent); }

/* reveal (visible at rest; JS adds motion only when allowed) */
.reveal { opacity: 1; transform: none; }
.js-motion .reveal { opacity: 0; transform: translateY(28px); transition: opacity .9s cubic-bezier(.2,.7,.2,1), transform .9s cubic-bezier(.2,.7,.2,1); }
.js-motion .reveal.in { opacity: 1; transform: none; }

/* footer */
.site-foot { border-top: 1px solid var(--line); padding-block: 64px 40px; background: linear-gradient(180deg, var(--ink), var(--foot)); }
.site-foot .cols { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1fr; gap: 40px; }
.site-foot h4 { font: 500 12px/1 var(--mono); letter-spacing: .16em; text-transform: uppercase; color: var(--dim); margin-bottom: 18px; font-stretch: 100%; }
.site-foot a, .site-foot p { color: var(--muted); text-decoration: none; font-size: 15px; display: block; line-height: 1.9; }
.site-foot a:hover { color: var(--yellow-ink); }
.site-foot .legal { margin-top: 56px; padding-top: 24px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: 16px; justify-content: space-between; color: var(--dim); font-size: 13px; }
.site-foot .brand img { height: 58px; width: auto; margin-bottom: 22px; }
@media (max-width: 860px) { .site-foot .cols { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .site-foot .cols { grid-template-columns: 1fr; } }

/* page hero (inner pages) */
.page-hero { padding-top: calc(160px + env(safe-area-inset-top, 0px)); padding-bottom: clamp(56px, 8vw, 110px); position: relative; overflow: hidden; }
.page-hero::before { content: ""; position: absolute; left: 50%; top: calc(110px + env(safe-area-inset-top, 0px)); width: min(980px, 92vw); aspect-ratio: 180 / 88; transform: translateX(-50%); background: url("../media/rgr-marca.svg") center / contain no-repeat; opacity: .06; pointer-events: none; }
.page-hero .wrap > .eyebrow, .page-hero .wrap > h1, .page-hero .wrap > .lead { position: relative; }
.page-hero .wrap { text-align: center; }
.page-hero h1 { font-size: clamp(44px, 7vw, 112px); max-width: 16ch; margin-inline: auto; }
.page-hero .lead { margin: 26px auto 0; }

/* grain overlay */
.grain::after { content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .06; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>"); }

/* cards */
.card { position: relative; background: linear-gradient(180deg, var(--card-a), var(--card-b)); border: 1px solid var(--line); border-radius: var(--r); }

/* tables */
.tbl-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 3px; }
table.spec { width: 100%; border-collapse: collapse; font-size: 14px; font-variant-numeric: tabular-nums; }
table.spec th { text-align: left; font: 500 11px/1.2 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--dim); padding: 14px 16px; border-bottom: 1px solid var(--line-2); position: sticky; top: 0; background: var(--ink-2); white-space: nowrap; }
table.spec td { padding: 12px 16px; border-bottom: 1px solid var(--line); color: var(--text); }
table.spec td:first-child { font-family: var(--mono); color: var(--yellow-ink); white-space: nowrap; }
table.spec tr:hover td { background: rgba(251,186,0,0.06); }

@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; } }

/* ---------- marcas de precisão: cantos em amarelo RGR (como marcas de desenho técnico) ---------- */
.cm { position: absolute; inset: -1px; pointer-events: none; z-index: 4; }
.cm::before, .cm::after { content: ""; position: absolute; width: 16px; height: 16px; border: 0 solid var(--yellow); }
.cm::before { top: 0; left: 0; border-top-width: 2px; border-left-width: 2px; }
.cm::after { right: 0; bottom: 0; border-right-width: 2px; border-bottom-width: 2px; }
.rmark { position: absolute; top: 16px; right: 16px; width: 30px; height: auto; opacity: .9; pointer-events: none; z-index: 4; }
/* títulos: fonte técnica de traço reto, larga como as letras do logo */
h1, h2, h3, h4 { font-weight: 700; letter-spacing: -0.005em; }
.btn { border-radius: 3px; letter-spacing: .02em; }
.btn.primary { background: var(--yellow); color: #0b1a2a; }
.btn.primary:hover { background: #ffc828; }
.fam, .pc, .unit, .rc, .film, .hero-img, .viewer, .cta, .tbl-wrap, .lineinfo, .people .vid, .orig .v, .careers .v { position: relative; }

/* ---------- atmosfera: luz ambiente, névoa e sombras que integram tudo ---------- */
body::before { content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background: radial-gradient(55% 45% at 85% -5%, rgba(0,65,119,.32), transparent 70%), radial-gradient(45% 40% at -5% 105%, rgba(0,65,119,.22), transparent 70%), radial-gradient(30% 25% at 50% 50%, rgba(251,186,0,.025), transparent 70%); }
body { background-color: var(--ink); }
main, .site-foot { position: relative; z-index: 0; }
:root[data-theme="light"] body::before { background: radial-gradient(55% 45% at 85% -5%, rgba(255,255,255,.55), transparent 70%), radial-gradient(45% 40% at -5% 105%, rgba(0,65,119,.12), transparent 70%); }
.card, .fam, .pc, .unit, .rc, .cta, .viewer { box-shadow: 0 30px 70px -40px var(--shadow), 0 2px 0 rgba(255,255,255,.02) inset; transition: box-shadow .4s, border-color .3s, transform .4s cubic-bezier(.2,.7,.2,1); }
.fam:hover, .pc:hover, .unit:hover, .rc:hover { box-shadow: 0 50px 90px -40px var(--shadow), 0 0 0 1px rgba(251,186,0,.25); }
.film, .hero-img { box-shadow: 0 50px 120px -50px rgba(0,0,0,.75), 0 0 80px -30px rgba(0,65,119,.45); }
/* imagens ao lado do texto: bordas esfumaçadas que se dissolvem no fundo */
.orig .v, .careers .v, .people .vid { border: 0 !important; border-radius: 0 !important; box-shadow: none !important;
  mask-image: linear-gradient(90deg, transparent 0%, #000 10%, #000 70%, transparent 100%), linear-gradient(180deg, transparent 0%, #000 14%, #000 86%, transparent 100%); mask-composite: intersect; }
@media (max-width: 860px) { .orig .v, .careers .v, .people .vid { mask-image: linear-gradient(90deg, transparent 0%, #000 8%, #000 92%, transparent 100%), linear-gradient(180deg, transparent 0%, #000 12%, #000 85%, transparent 100%); mask-composite: intersect; } }
/* brilho que segue o cursor, como luz passando sobre metal */
.sheen { position: absolute; inset: 0; pointer-events: none; z-index: 3; opacity: 0; transition: opacity .35s; border-radius: inherit;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 50%), rgba(255,255,255,.09), transparent 45%); }
:root[data-theme="light"] .sheen { background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 50%), rgba(255,255,255,.55), transparent 45%); }
*:hover > .sheen { opacity: 1; }
/* palco iluminado sob as fotos de produto (mesmo efeito da peça 3D do topo) */
.fam .img::before, .pc .ph::before { content: ""; position: absolute; left: 50%; top: 50%; width: 80%; aspect-ratio: 1; transform: translate(-50%, -50%); background: radial-gradient(closest-side, rgba(70,140,220,.22), transparent 75%); pointer-events: none; }
.fam .img::after, .pc .ph::after { content: ""; position: absolute; left: 50%; bottom: 2%; width: 62%; height: 18px; transform: translateX(-50%); background: radial-gradient(closest-side, var(--shadow), transparent 80%); filter: blur(3px); pointer-events: none; }
.fam .img img, .pc .ph img { position: relative; z-index: 1; }
.pc .ph { position: relative; }
/* títulos que surgem palavra por palavra */
.js-motion .reveal .wr { display: inline-block; overflow: hidden; vertical-align: top; padding-bottom: .08em; margin-bottom: -.08em; }
.js-motion .reveal .wr > span { display: inline-block; transform: translateY(105%); transition: transform 1s cubic-bezier(.2,.75,.15,1); transition-delay: calc(var(--i) * 55ms); }
.js-motion .reveal.in .wr > span { transform: none; }