/* Two Sons Limitada — industrial steel + brand red.
   Layout: full-bleed photo hero with manifest strip, then alternating light "plate" sections, one photo band. */
:root {
  --ink: #0f1a22;        /* deep steel navy: text, dark sections */
  --steel: #46555f;      /* secondary text */
  --zinc: #d5dbdf;       /* hairlines */
  --plate: #eef1f3;      /* galvanised light ground */
  --paper: #ffffff;      /* raised surfaces */
  --red: #d63a2b;        /* brand red (deepened #E74C3C for contrast) */
  --red-hi: #e74c3c;
  --on-dark: #f2f5f7;
  --on-dark-2: #b7c2ca;
  --bg: var(--plate);
  --fg: var(--ink);
  --surface: var(--paper);
  --muted: var(--steel);
  --line: var(--zinc);
  --dark: #0f1a22;
  --dark-2: #16242f;

  --f-display: "Barlow Condensed", "Arial Narrow", "Roboto Condensed", sans-serif;
  --f-body: "Barlow", "Segoe UI", system-ui, sans-serif;

  --s-xs: .8125rem; --s-sm: .9375rem; --s-md: 1.0625rem; --s-lg: 1.25rem;
  --s-h3: 1.375rem; --s-h2: clamp(2rem, 1.4rem + 2.6vw, 3.25rem); --s-h1: clamp(2.75rem, 1.6rem + 5.6vw, 6rem);
  --gutter: clamp(16px, 4vw, 40px);
  --maxw: 1240px;
  --r: 4px;
  --ease: cubic-bezier(.2,.7,.2,1);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0c151c; --fg: #e8edf0; --surface: #13202a; --muted: #9fadb7; --line: #253641;
    --red: #e5503f; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0c151c; --fg: #e8edf0; --surface: #13202a; --muted: #9fadb7; --line: #253641;
  --red: #e5503f; color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 400 var(--s-md)/1.6 var(--f-body); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3 { margin: 0; text-wrap: balance; }
p { margin: 0; }
:focus-visible { outline: 3px solid var(--red-hi); outline-offset: 3px; border-radius: 2px; }

.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block: clamp(64px, 9vw, 120px); }
section[id] { scroll-margin-top: 64px; }
.h2 { font: 700 var(--s-h2)/1.02 var(--f-display); letter-spacing: -.005em; text-transform: uppercase; }
.h3 { font: 600 var(--s-h3)/1.1 var(--f-display); text-transform: uppercase; letter-spacing: .01em; }
.lead { font-size: var(--s-lg); line-height: 1.55; color: var(--muted); max-width: 60ch; }

.skip { position: absolute; left: 8px; top: -60px; background: var(--red); color: #fff; padding: 10px 14px; z-index: 100; border-radius: var(--r); }
.skip:focus { top: 8px; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5em; min-height: 48px; padding: 0 26px; font: 600 1.0625rem/1 var(--f-display); letter-spacing: .06em; text-transform: uppercase; text-decoration: none; border: 2px solid transparent; border-radius: var(--r); cursor: pointer; transition: background-color .2s, color .2s, border-color .2s, transform .2s var(--ease); }
.btn:active { transform: translateY(1px); }
.btn-red { background: var(--red); color: #fff; }
.btn-red:hover { background: #b92f22; }
.btn-ghost { border-color: rgba(255,255,255,.55); color: #fff; }
.btn-ghost:hover { background: #fff; color: var(--dark); border-color: #fff; }
.btn-sm { min-height: 40px; padding: 0 18px; font-size: .9375rem; }
.btn-block { width: 100%; }

/* Header */
.site-header { position: fixed; inset: 0 0 auto 0; z-index: 50; padding-top: env(safe-area-inset-top, 0px); color: #fff; transition: background-color .3s, box-shadow .3s; }
.site-header.is-solid { background: rgba(15,26,34,.94); backdrop-filter: blur(8px); box-shadow: 0 1px 0 rgba(255,255,255,.06); }
.header-row { display: flex; align-items: center; gap: 24px; height: 76px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; flex-shrink: 0; }
.brand-mark { width: 44px; height: 33px; }
.brand-mark .nut-a { fill: var(--red-hi); }
.brand-mark .nut-b { fill: #fff; opacity: .92; }
.brand-mark .hole { fill: var(--dark); }
.brand-word { display: flex; flex-direction: column; line-height: .9; }
.brand-word b { font: 700 1.5rem/0.9 var(--f-display); text-transform: uppercase; letter-spacing: .02em; }
.brand-word small { font: 500 .75rem/1.2 var(--f-display); text-transform: uppercase; letter-spacing: .32em; opacity: .75; margin-top: 3px; }
.nav { display: flex; gap: 28px; margin-left: auto; }
.nav a { font: 500 1.0625rem/1 var(--f-display); text-transform: uppercase; letter-spacing: .06em; text-decoration: none; padding: 8px 0; position: relative; }
.nav a::after { content: ""; position: absolute; left: 0; right: 0; bottom: 2px; height: 2px; background: var(--red-hi); transform: scaleX(0); transform-origin: left; transition: transform .3s var(--ease); }
.nav a:hover::after, .nav a[aria-current="true"]::after { transform: scaleX(1); }
.header-actions { display: flex; align-items: center; gap: 14px; }
.lang { display: flex; border: 1px solid rgba(255,255,255,.35); border-radius: var(--r); overflow: hidden; }
.lang button { background: none; border: 0; color: inherit; font: 600 .8125rem/1 var(--f-display); letter-spacing: .1em; padding: 8px 10px; cursor: pointer; }
.lang button[aria-pressed="true"] { background: #fff; color: var(--dark); }
.menu-btn { display: none; width: 44px; height: 44px; background: none; border: 0; cursor: pointer; position: relative; }
.menu-btn span { position: absolute; left: 10px; right: 10px; height: 2px; background: #fff; transition: transform .25s var(--ease), top .25s; }
.menu-btn span:first-child { top: 17px; } .menu-btn span:last-child { top: 25px; }
.menu-btn[aria-expanded="true"] span:first-child { top: 21px; transform: rotate(45deg); }
.menu-btn[aria-expanded="true"] span:last-child { top: 21px; transform: rotate(-45deg); }

/* Hero */
.hero { position: relative; color: #fff; background: var(--dark); isolation: isolate; overflow: hidden; }
.hero-media, .hero-shade { position: absolute; inset: 0; z-index: -1; }
.hero-media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; transform: scale(1.08); transition: opacity 1.6s ease, transform 9s linear; }
.hero-media img.is-on { opacity: 1; transform: scale(1); }
.hero-shade { background: linear-gradient(90deg, rgba(10,18,24,.92) 0%, rgba(10,18,24,.72) 45%, rgba(10,18,24,.35) 100%), linear-gradient(0deg, rgba(10,18,24,.85) 0%, rgba(10,18,24,0) 40%); }
.hero-inner { padding-top: calc(76px + clamp(56px, 8vw, 110px)); padding-bottom: clamp(56px, 8vw, 96px); }
.hero-place { display: flex; align-items: center; gap: 10px; font: 500 1rem/1.2 var(--f-display); letter-spacing: .08em; text-transform: uppercase; color: var(--on-dark-2); margin-bottom: 22px; }
.hero-place .dot { width: 8px; height: 8px; background: var(--red-hi); border-radius: 50%; box-shadow: 0 0 0 0 rgba(231,76,60,.6); animation: pulse 2.4s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 10px rgba(231,76,60,0); } 100% { box-shadow: 0 0 0 0 rgba(231,76,60,0); } }
.hero-title { font: 700 var(--s-h1)/.92 var(--f-display); text-transform: uppercase; letter-spacing: -.01em; max-width: 19ch; }
.hero-title .line { display: block; overflow: hidden; padding-bottom: .04em; }
.hero-title .line > span { display: inline-block; }
.hero-title .line:last-child > span { color: var(--red-hi); }
.hero-lead { margin-top: 26px; max-width: 52ch; font-size: var(--s-lg); color: var(--on-dark); opacity: .88; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }

/* Orchestrated load: the one motion moment */
.js .hero-title .line > span { transform: translateY(105%); animation: rise .9s var(--ease) forwards; }
.js .hero-title .line:nth-child(2) > span { animation-delay: .12s; }
.js .hero-title .line:nth-child(3) > span { animation-delay: .24s; }
.js .hero-place, .js .hero-lead, .js .hero-ctas, .js .manifest-row { animation: fadeUp .8s var(--ease) both; }
.js .hero-place { animation-delay: .05s; } .js .hero-lead { animation-delay: .45s; } .js .hero-ctas { animation-delay: .58s; } .js .manifest-row { animation-delay: .72s; }
@keyframes rise { to { transform: none; } }
@keyframes fadeUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }

.manifest { border-top: 1px solid rgba(255,255,255,.14); background: rgba(10,18,24,.55); backdrop-filter: blur(6px); }
.manifest-row { display: grid; grid-template-columns: repeat(4, 1fr); }
.m-item { padding: 22px 20px; display: flex; flex-direction: column; gap: 4px; border-left: 1px solid rgba(255,255,255,.12); }
.m-item:first-child { border-left: 0; padding-left: 0; }
.m-item strong { font: 700 2.25rem/1 var(--f-display); font-variant-numeric: tabular-nums; }
.m-item span { font-size: var(--s-sm); color: var(--on-dark-2); }

/* About */
.about-grid { display: grid; grid-template-columns: 1fr 1.05fr; gap: clamp(40px, 6vw, 88px); align-items: center; }
.about-photos { position: relative; margin: 0 0 40px; }
.ph-main { width: 82%; aspect-ratio: 11/13; object-fit: cover; border-radius: var(--r); }
.ph-small { position: absolute; right: 0; bottom: -40px; width: 52%; aspect-ratio: 7/5.2; object-fit: cover; border-radius: var(--r); border: 6px solid var(--bg); }
.ph-tag { position: absolute; left: 0; top: 24px; transform: translateX(-12px); background: var(--red); color: #fff; font: 600 .9375rem/1 var(--f-display); letter-spacing: .06em; text-transform: uppercase; padding: 12px 16px; border-radius: 0 var(--r) var(--r) 0; }
.about-copy .h2 { margin-bottom: 22px; }
.pillars { list-style: none; padding: 0; margin: 36px 0 0; display: grid; gap: 22px; }
.pillars li { display: grid; grid-template-columns: 48px 1fr; gap: 16px; align-items: start; padding-top: 22px; border-top: 1px solid var(--line); }
.pillars svg { width: 40px; height: 40px; fill: none; stroke: var(--red); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.pillars h3 { font: 600 var(--s-h3)/1.1 var(--f-display); text-transform: uppercase; letter-spacing: .02em; margin-bottom: 4px; }
.pillars p { color: var(--muted); }

/* Catalog */
.catalog { background: var(--surface); }
.sec-head { display: grid; grid-template-columns: 1fr 1fr; gap: 24px 64px; align-items: end; margin-bottom: clamp(36px, 5vw, 56px); }
.sec-head p { color: var(--muted); max-width: 52ch; }
.cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.cat { display: flex; flex-direction: column; min-width: 0; }
.cat-img { overflow: hidden; border-radius: var(--r); aspect-ratio: 10/7; background: var(--line); }
.cat-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease); }
.cat:hover .cat-img img { transform: scale(1.05); }
.cat-body { position: relative; padding: 22px 0 0; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.cat-code { position: absolute; top: -20px; left: 16px; background: var(--dark); color: #fff; font: 700 .9375rem/1 var(--f-display); letter-spacing: .14em; padding: 10px 12px 9px; border-left: 4px solid var(--red-hi); }
.cat h3 { font: 600 1.5rem/1.1 var(--f-display); text-transform: uppercase; letter-spacing: .01em; margin-top: 8px; }
.cat p { color: var(--muted); }
.cat-link { margin-top: auto; padding-top: 10px; align-self: flex-start; font: 600 1rem/1 var(--f-display); text-transform: uppercase; letter-spacing: .08em; color: var(--red); text-decoration: none; border-bottom: 2px solid currentColor; padding-bottom: 4px; }
.cat-link:hover { color: var(--fg); }

/* Process */
.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; counter-reset: s; }
.steps li { padding: 28px 24px 8px 0; border-top: 3px solid var(--line); position: relative; }
.steps li::before { content: ""; position: absolute; left: 0; top: -3px; height: 3px; width: 56px; background: var(--red); }
.step-n { font: 700 3.5rem/1 var(--f-display); color: var(--red); display: block; margin-bottom: 14px; font-variant-numeric: tabular-nums; }
.steps h3 { font: 600 1.375rem/1.1 var(--f-display); text-transform: uppercase; margin-bottom: 8px; }
.steps p { color: var(--muted); max-width: 30ch; }

/* Band */
.band { position: relative; color: #fff; overflow: hidden; isolation: isolate; background: var(--dark); }
.band-img, .band-shade { position: absolute; inset: 0; z-index: -1; width: 100%; height: 100%; }
.band-img { object-fit: cover; object-position: center 60%; }
.band-shade { background: linear-gradient(90deg, rgba(10,18,24,.9) 0%, rgba(10,18,24,.6) 55%, rgba(10,18,24,.2) 100%); }
.band-inner { padding-block: clamp(80px, 12vw, 160px); display: flex; flex-direction: column; align-items: flex-start; gap: 22px; }
.band-title { font: 700 clamp(2.25rem, 1.5rem + 3.2vw, 4.25rem)/.98 var(--f-display); text-transform: uppercase; max-width: 16ch; }
.band p { max-width: 48ch; color: var(--on-dark); opacity: .88; font-size: var(--s-lg); }

/* Sectors */
.sectors { padding-block: clamp(44px, 6vw, 72px); border-bottom: 1px solid var(--line); }
.sectors-row { display: grid; grid-template-columns: 220px 1fr; gap: 24px 48px; align-items: center; }
.sector-list { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 10px; }
.sector-list li { font: 500 1.0625rem/1 var(--f-display); letter-spacing: .03em; padding: 12px 16px; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(40px, 6vw, 88px); align-items: start; }
.contact-info .h2 { margin-bottom: 18px; }
.details { margin: 36px 0 0; display: grid; gap: 22px; }
.details > div { padding-top: 18px; border-top: 1px solid var(--line); }
.details dt { font: 600 .9375rem/1 var(--f-display); text-transform: uppercase; letter-spacing: .1em; color: var(--muted); margin-bottom: 8px; }
.details dd { margin: 0; font-size: var(--s-lg); }
.details a { color: var(--fg); text-decoration-color: var(--red); text-underline-offset: 4px; }
.copy { margin-left: 10px; font: 600 .8125rem/1 var(--f-display); letter-spacing: .08em; text-transform: uppercase; padding: 7px 10px; border: 1px solid var(--line); background: var(--surface); color: var(--fg); border-radius: var(--r); cursor: pointer; vertical-align: middle; }
.copy:hover { border-color: var(--fg); }

.quote-form { background: var(--surface); border: 1px solid var(--line); border-top: 4px solid var(--red); border-radius: var(--r); padding: clamp(22px, 3.5vw, 40px); display: grid; gap: 18px; }
.f-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: grid; gap: 7px; min-width: 0; }
.field label { font: 600 .9375rem/1 var(--f-display); letter-spacing: .06em; text-transform: uppercase; }
.field input, .field select, .field textarea { width: 100%; font: inherit; font-size: 1rem; color: var(--fg); background: var(--bg); border: 1px solid var(--line); border-radius: var(--r); padding: 12px 14px; transition: border-color .2s, box-shadow .2s; }
.field textarea { resize: vertical; min-height: 120px; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--red); box-shadow: 0 0 0 3px color-mix(in srgb, var(--red) 22%, transparent); }
.field [aria-invalid="true"] { border-color: var(--red); }
.f-error { color: var(--red); font-weight: 600; }
.f-note { font-size: var(--s-xs); color: var(--muted); }

/* Footer */
.site-footer { background: var(--dark); color: var(--on-dark-2); padding-top: 64px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; padding-bottom: 48px; }
.site-footer .brand-word { color: #fff; margin-bottom: 14px; }
.site-footer h3 { font: 600 1rem/1 var(--f-display); text-transform: uppercase; letter-spacing: .12em; color: #fff; margin-bottom: 16px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.site-footer a { text-decoration: none; }
.site-footer a:hover { color: #fff; }
.f-brand p { max-width: 34ch; }
.footer-base { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; padding-block: 22px calc(22px + env(safe-area-inset-bottom, 0px)); border-top: 1px solid rgba(255,255,255,.1); font-size: var(--s-xs); }

/* Scroll reveal: content is visible by default; only below-the-fold items get the class at load */
.reveal.pre { opacity: 0; transform: translateY(22px); }
.reveal { transition: opacity .7s var(--ease), transform .7s var(--ease); }
.cat-grid .reveal:nth-child(3n+2), .steps .reveal:nth-child(2) { transition-delay: .08s; }
.cat-grid .reveal:nth-child(3n), .steps .reveal:nth-child(3) { transition-delay: .16s; }
.steps .reveal:nth-child(4) { transition-delay: .24s; }

/* Responsive */
@media (max-width: 1020px) {
  .nav { position: fixed; inset: calc(76px + env(safe-area-inset-top, 0px)) 0 auto 0; flex-direction: column; gap: 0; background: var(--dark); padding: 8px var(--gutter) 20px; margin: 0; transform: translateY(-8px); opacity: 0; visibility: hidden; transition: opacity .25s, transform .25s var(--ease), visibility .25s; }
  .nav.is-open { opacity: 1; transform: none; visibility: visible; }
  .nav a { padding: 16px 0; border-bottom: 1px solid rgba(255,255,255,.08); font-size: 1.25rem; }
  .nav a::after { display: none; }
  .header-actions { margin-left: auto; }
  .menu-btn { display: block; }
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); row-gap: 28px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .f-brand { grid-column: 1 / -1; }
}
@media (max-width: 820px) {
  .about-grid, .contact-grid, .sec-head { grid-template-columns: 1fr; }
  .about-photos { max-width: 560px; }
  .sectors-row { grid-template-columns: 1fr; }
  .manifest-row { grid-template-columns: repeat(2, 1fr); }
  .m-item:nth-child(3) { border-left: 0; padding-left: 0; }
  .m-item:nth-child(n+3) { border-top: 1px solid rgba(255,255,255,.12); }
  .hide-sm { display: none; }
}
@media (max-width: 560px) {
  .header-row { height: 64px; gap: 12px; }
  .nav { inset: calc(64px + env(safe-area-inset-top, 0px)) 0 auto 0; }
  .brand-mark { width: 36px; height: 27px; }
  .brand-word b { font-size: 1.25rem; }
  .hero-inner { padding-top: calc(64px + 56px); }
  .cat-grid, .steps, .f-row, .footer-grid { grid-template-columns: 1fr; }
  .m-item { padding: 16px 12px; }
  .m-item strong { font-size: 1.875rem; }
  .ph-small { bottom: -28px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .js .hero-title .line > span { transform: none; }
  .hero-media img { transform: none; }
  .reveal.pre { opacity: 1; transform: none; }
}