/* MetalBack — black & white, minimal */
:root {
  --bg: #000;
  --fg: #fff;
  --fg-2: #c9c9c9;
  --muted: #8a8a8a;
  --faint: #4a4a4a;
  --line: #1c1c1c;
  --line-2: #2a2a2a;
  --card: #070707;
  --sans: 'Inter', -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --wrap: 1180px;
  --gutter: clamp(16px, 4vw, 40px);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 400 17px/1.6 var(--sans); letter-spacing: -0.005em;
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
::selection { background: var(--fg); color: var(--bg); }
:focus-visible { outline: 2px solid var(--fg); outline-offset: 3px; border-radius: 4px; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
.eyebrow {
  font: 500 12px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--muted);
  display: inline-flex; align-items: center; gap: 10px;
}
.eyebrow::before { content: ''; width: 18px; height: 1px; background: var(--faint); }

/* ---------- nav ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  background: rgba(0,0,0,.72); backdrop-filter: saturate(140%) blur(14px); -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid transparent; transition: border-color .3s;
}
.nav.scrolled { border-bottom-color: var(--line); }
.nav-in { height: 68px; display: flex; align-items: center; gap: 24px; }
.logo { display: inline-flex; align-items: center; gap: 12px; font-weight: 800; font-size: 18px; letter-spacing: -0.02em; }
.logo svg { width: 30px; height: 30px; }
.nav-links { margin-left: auto; display: flex; align-items: center; gap: 30px; font-size: 14.5px; color: var(--fg-2); }
.nav-links a:not(.btn) { position: relative; transition: color .2s; }
.nav-links a:not(.btn):hover { color: var(--fg); }
.nav-links a:not(.btn)::after { content: ''; position: absolute; left: 0; right: 100%; bottom: -6px; height: 1px; background: var(--fg); transition: right .25s; }
.nav-links a:not(.btn):hover::after { right: 0; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  height: 48px; padding: 0 22px; border-radius: 999px;
  font: 600 15px/1 var(--sans); letter-spacing: -0.01em; white-space: nowrap;
  border: 1px solid var(--fg); background: var(--fg); color: var(--bg);
  transition: background .2s, color .2s, transform .15s;
}
.btn:hover { background: transparent; color: var(--fg); }
.btn:active { transform: scale(.98); }
.btn-ghost { background: transparent; color: var(--fg); border-color: var(--line-2); }
.btn-ghost:hover { border-color: var(--fg); }
.btn-sm { height: 38px; padding: 0 16px; font-size: 14px; }
.btn .arr { transition: transform .2s; }
.btn:hover .arr { transform: translate(2px, -2px); }

/* ---------- hero ---------- */
.hero { position: relative; padding: clamp(140px, 20vh, 200px) 0 clamp(64px, 10vh, 110px); overflow: hidden; }
.hero-grid {
  position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 72px 72px; background-position: center top;
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, #000 0%, transparent 75%);
          mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, #000 0%, transparent 75%);
  opacity: .7;
}
.hero-mark {
  position: absolute; right: calc(var(--gutter) * -0.5); top: 120px; width: min(46vw, 560px); opacity: .07; pointer-events: none;
}
.hero .wrap { position: relative; }
.hero h1 {
  margin: 26px 0 0; font-weight: 800; letter-spacing: -0.055em; line-height: .92;
  font-size: clamp(54px, 10.5vw, 148px);
}
.hero h1 .dim { color: var(--faint); }
.hero-sub { margin: 34px 0 0; max-width: 560px; font-size: clamp(17px, 1.6vw, 20px); color: var(--fg-2); line-height: 1.55; }
.hero-cta { margin-top: 40px; display: flex; flex-wrap: wrap; gap: 12px; }
.hero-meta {
  margin-top: clamp(64px, 10vh, 110px); padding-top: 22px; border-top: 1px solid var(--line);
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}
.hero-meta div { display: flex; flex-direction: column; gap: 6px; }
.hero-meta strong { font-size: 15px; font-weight: 600; }
.hero-meta span { font: 500 11.5px/1.3 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }

/* ---------- sections ---------- */
.section { padding: clamp(80px, 13vh, 140px) 0; border-top: 1px solid var(--line); }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; flex-wrap: wrap; margin-bottom: clamp(36px, 6vh, 64px); }
.section-head h2 { margin: 18px 0 0; font-size: clamp(36px, 5.4vw, 68px); line-height: 1; letter-spacing: -0.045em; font-weight: 800; }
.section-head p { margin: 0; max-width: 380px; color: var(--muted); font-size: 15.5px; }

/* ---------- products ---------- */
.products { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.product {
  position: relative; display: flex; flex-direction: column;
  background: var(--card); border: 1px solid var(--line); border-radius: 24px; overflow: hidden;
  transition: border-color .3s, transform .3s;
}
.product:hover { border-color: var(--line-2); transform: translateY(-3px); }
.product-art {
  position: relative; aspect-ratio: 16 / 10; border-bottom: 1px solid var(--line);
  background: radial-gradient(120% 90% at 50% 0%, #141414 0%, #050505 60%);
  display: grid; place-items: center; overflow: hidden;
}
.product-art svg { width: 82%; height: auto; transition: transform .6s cubic-bezier(.2,.7,.2,1); }
.product:hover .product-art svg { transform: scale(1.025); }
.product-body { padding: clamp(24px, 3vw, 36px); display: flex; flex-direction: column; gap: 18px; flex: 1; }
.product-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.product-name { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.product h3 { margin: 0; font-size: clamp(30px, 3.2vw, 40px); letter-spacing: -0.04em; line-height: 1; font-weight: 800; }
.product-cat { font: 500 11.5px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.status {
  display: inline-flex; align-items: center; gap: 8px; padding: 6px 11px; border: 1px solid var(--line-2); border-radius: 999px;
  font: 500 11px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--fg-2); white-space: nowrap;
}
.status i { width: 6px; height: 6px; border-radius: 50%; background: var(--fg); box-shadow: 0 0 0 0 rgba(255,255,255,.6); animation: pulse 2.4s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(255,255,255,.5); } 70% { box-shadow: 0 0 0 7px rgba(255,255,255,0); } 100% { box-shadow: 0 0 0 0 rgba(255,255,255,0); } }
.product p { margin: 0; color: var(--fg-2); font-size: 16px; max-width: 46ch; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; list-style: none; }
.tags li { font-size: 13px; color: var(--fg-2); padding: 6px 12px; border: 1px solid var(--line); border-radius: 999px; }
.product-foot { margin-top: auto; padding-top: 8px; display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.product-url { font: 500 13px/1 var(--mono); color: var(--muted); }

/* ---------- about ---------- */
.about { display: grid; grid-template-columns: 1.15fr 1fr; gap: clamp(32px, 6vw, 96px); align-items: start; }
.about-lead { margin: 0; font-size: clamp(26px, 3.2vw, 40px); line-height: 1.18; letter-spacing: -0.03em; font-weight: 600; }
.about-lead span { color: var(--faint); }
.about-copy { color: var(--fg-2); font-size: 16.5px; display: flex; flex-direction: column; gap: 18px; }
.about-copy p { margin: 0; }
.facts { margin: 8px 0 0; display: grid; grid-template-columns: auto 1fr; gap: 12px 24px; font-size: 14.5px; }
.facts dt { font: 500 11.5px/1.9 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.facts dd { margin: 0; color: var(--fg); }

.principles { margin-top: clamp(56px, 9vh, 96px); display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.principle { padding: 32px 28px 8px 0; }
.principle + .principle { padding-left: 28px; border-left: 1px solid var(--line); }
.principle .num { font: 500 12px/1 var(--mono); color: var(--muted); letter-spacing: .1em; }
.principle h4 { margin: 18px 0 10px; font-size: 21px; letter-spacing: -0.02em; font-weight: 700; }
.principle p { margin: 0; color: var(--muted); font-size: 15px; }

/* ---------- contact ---------- */
.contact-mail {
  display: inline-flex; align-items: center; gap: .3em; margin-top: 8px;
  font-size: clamp(30px, 6.6vw, 88px); font-weight: 800; letter-spacing: -0.05em; line-height: 1.05; white-space: nowrap;
  background: linear-gradient(var(--fg), var(--fg)) left bottom / 0% 3px no-repeat; padding-bottom: 6px;
  transition: background-size .45s cubic-bezier(.2,.7,.2,1);
}
.contact-mail:hover { background-size: 100% 3px; }
.contact-mail .arr { font-size: .5em; color: var(--muted); transition: transform .3s, color .3s; }
.contact-mail:hover .arr { transform: translate(6px, -6px); color: var(--fg); }
.contact-grid { margin-top: clamp(48px, 8vh, 80px); display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.contact-card { padding: 24px; border: 1px solid var(--line); border-radius: 18px; background: var(--card); }
.contact-card span { font: 500 11.5px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.contact-card p { margin: 12px 0 0; font-size: 15.5px; color: var(--fg-2); }
.contact-card a { color: var(--fg); border-bottom: 1px solid var(--line-2); transition: border-color .2s; }
.contact-card a:hover { border-color: var(--fg); }

/* ---------- footer ---------- */
.footer { border-top: 1px solid var(--line); padding: 56px 0 40px; }
.footer-top { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.footer-cols { display: flex; gap: clamp(40px, 8vw, 96px); flex-wrap: wrap; }
.footer-col { display: flex; flex-direction: column; gap: 12px; font-size: 14.5px; color: var(--fg-2); }
.footer-col strong { font: 500 11.5px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--muted); margin-bottom: 4px; font-weight: 500; }
.footer-col a:hover { color: var(--fg); }
.footer-tag { margin: 16px 0 0; color: var(--muted); font-size: 14.5px; max-width: 300px; }
.footer-bottom {
  margin-top: 56px; padding-top: 22px; border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; gap: 12px 24px; flex-wrap: wrap;
  font: 500 12px/1.6 var(--mono); letter-spacing: .04em; color: var(--muted);
}
.wordmark {
  margin-top: 48px; font-weight: 800; letter-spacing: -0.06em; line-height: .8;
  font-size: clamp(64px, 16.5vw, 232px); color: #101010; user-select: none; white-space: nowrap; overflow: hidden;
}

/* ---------- reveal ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .9s cubic-bezier(.2,.7,.2,1), transform .9s cubic-bezier(.2,.7,.2,1); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s; } .reveal.d2 { transition-delay: .16s; } .reveal.d3 { transition-delay: .24s; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .status i { animation: none; }
  * { transition-duration: 0s !important; }
}

/* ---------- legal pages ---------- */
.legal { padding: 140px 0 96px; }
.legal .wrap { max-width: 780px; }
.legal h1 { margin: 22px 0 8px; font-size: clamp(40px, 6vw, 64px); letter-spacing: -0.045em; line-height: 1; font-weight: 800; }
.legal .updated { margin: 0 0 40px; font: 500 12px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.legal h2 { margin: 48px 0 12px; font-size: 22px; letter-spacing: -0.02em; font-weight: 700; }
.legal p, .legal li { color: var(--fg-2); font-size: 16px; }
.legal ul { padding-left: 20px; }
.legal li { margin: 6px 0; }
.legal a { color: var(--fg); border-bottom: 1px solid var(--line-2); }
.legal a:hover { border-color: var(--fg); }
.legal .box { margin: 28px 0; padding: 20px 22px; border: 1px solid var(--line); border-radius: 16px; background: var(--card); }
.legal .box p { margin: 0; }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .products, .about { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .principles { grid-template-columns: 1fr; }
  .principle, .principle + .principle { padding: 28px 0 4px; border-left: 0; }
  .principle + .principle { border-top: 1px solid var(--line); }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .nav-links a.hide-sm { display: none; }
  .nav-links { gap: 18px; }
  .hero-meta { grid-template-columns: 1fr 1fr; }
  .hero-meta div:last-child { grid-column: 1 / -1; }
  .hero-mark { width: 80vw; top: 90px; right: -30vw; }
  .hero-cta .btn { flex: 1; }
  .product-art svg { width: 90%; }
  .footer-bottom { flex-direction: column; }
  .contact-mail { font-size: 8.4vw; }
}