/* Lincoln Forge premium concept v2
   Palette derived from the prospect's own mark: navy #003352, red #b10000.
   Heat ramp (white > amber > orange > brand red > steel) is the concept layer. */

:root {
  --steel-950: oklch(0.16 0.022 245);
  --steel-900: oklch(0.185 0.024 243);
  --steel-850: oklch(0.22 0.026 243);
  --steel-200: oklch(0.86 0.012 240);
  --steel-300: oklch(0.74 0.018 240);
  --ink-engrave: oklch(0.3 0.035 243);
  --text: oklch(0.94 0.012 245);
  --text-muted: oklch(0.71 0.02 245);
  --text-faint: oklch(0.6 0.022 245);
  --brand-red: oklch(0.47 0.18 28);
  --brand-red-bright: oklch(0.54 0.19 28);
  --heat-white: #fff7e8;
  --heat-cream: #ffdfa8;
  --heat-amber: #ffb24a;
  --heat-orange: #f47b16;
  --heat-ember: #d8430a;
  --line-faint: oklch(0.32 0.025 243 / 0.6);
  --space-xs: 8px;
  --space-sm: 12px;
  --space-md: 24px;
  --space-lg: 48px;
  --space-xl: 96px;
  --font-display: "Big Shoulders Display", "Arial Narrow", sans-serif;
  --font-body: "Hanken Grotesk", "Helvetica Neue", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

.m-br { display: none; }

html { scroll-behavior: smooth; }

body {
  background: var(--steel-950);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--heat-orange); color: var(--steel-950); }

a { color: inherit; text-decoration: none; }

img { display: block; max-width: 100%; height: auto; }

.shell {
  width: min(1200px, calc(100% - 96px));
  margin-inline: auto;
}

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.02em;
  border-radius: 2px;
  padding: 10px 20px;
  transition: background-color 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
  white-space: nowrap;
}

.btn-lg { font-size: 15px; padding: 15px 30px; }

.btn-solid {
  background: var(--brand-red);
  color: #fff;
  box-shadow: 0 10px 28px oklch(0.47 0.18 28 / 0.32);
}
.btn-solid:hover { background: var(--brand-red-bright); transform: translateY(-1px); }

.btn-ghost {
  border: 1px solid oklch(0.5 0.025 243 / 0.7);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--heat-amber); color: var(--heat-amber); }

:focus-visible { outline: 2px solid var(--heat-amber); outline-offset: 2px; }

/* ---------- header ---------- */

.site-header {
  position: relative;
  z-index: 5;
  border-bottom: 1px solid oklch(1 0 0 / 0.07);
  background: var(--steel-950);
}

.header-row {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding-block: 16px;
}

.lockup { display: flex; align-items: center; gap: 12px; }

.mark-chip {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  background: oklch(0.27 0.05 243);
  border-radius: 3px;
  box-shadow: inset 0 1px 0 oklch(1 0 0 / 0.12);
}
.mark-chip img { width: 32px; height: 32px; }

.lockup-text { display: flex; flex-direction: column; }

.wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 24px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  line-height: 1;
}

.lockup-sub {
  font-size: 9.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-top: 3px;
}

.nav {
  display: flex;
  gap: 26px;
  margin-left: auto;
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.nav a:hover { color: var(--heat-amber); }

.header-actions { display: flex; align-items: center; gap: 18px; }

.header-phone {
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.03em;
  color: var(--text);
}
.header-phone:hover { color: var(--heat-amber); }

/* ---------- hero ---------- */

.hero {
  position: relative;
  overflow: hidden;
  padding-top: 44px;
}

/* machined texture + warm right-side ambience + grain */
.hero-ambient {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(1100px 700px at 86% 62%, oklch(0.55 0.16 45 / 0.16), transparent 65%),
    radial-gradient(900px 600px at 50% -10%, oklch(0.3 0.05 243 / 0.5), transparent 70%),
    repeating-linear-gradient(180deg, oklch(1 0 0 / 0.016) 0 1px, transparent 1px 7px);
}
.hero-ambient::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='0.55'/%3E%3C/svg%3E");
  opacity: 0.05;
}

.hero-inner { position: relative; z-index: 2; }

.eyebrow {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.eyebrow-rule {
  width: 34px;
  height: 2px;
  background: var(--brand-red-bright);
}

.display {
  font-family: var(--font-display);
  font-weight: 800;
  text-transform: uppercase;
  line-height: 0.92;
  letter-spacing: 0.004em;
  display: flex;
  flex-direction: column;
}

.hero .display {
  font-size: clamp(3.3rem, 8vw, 7.3rem);
  margin-top: 22px;
}

.display-heat { color: var(--heat-amber); }

.hero-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-lg);
  margin-top: 30px;
}

.hero-sub {
  max-width: 54ch;
  font-size: 17px;
  color: var(--text-muted);
}

.hero-ctas { display: flex; gap: 14px; flex-shrink: 0; }

/* ---------- the billet (concept visual) ---------- */

.billet-stage {
  position: relative;
  height: 126px;
  margin-top: 28px;
  z-index: 1;
}

.billet-bloom {
  position: absolute;
  right: -4%;
  top: 50%;
  width: 620px;
  height: 420px;
  transform: translateY(-50%);
  background: radial-gradient(closest-side, oklch(0.72 0.17 50 / 0.3), oklch(0.6 0.19 35 / 0.12) 45%, transparent 72%);
  filter: blur(10px);
}

.billet {
  position: absolute;
  left: -3%;
  right: -2%;
  top: 50%;
  height: 46px;
  transform: translateY(-50%) rotate(-1.1deg);
  border-radius: 3px;
  background: linear-gradient(90deg,
    #141b25 0%, #1d222b 12%, #34201a 26%, #5c180d 40%, #951c05 52%,
    #c33307 63%, #ec6a10 73%, var(--heat-amber) 82%, var(--heat-cream) 91%, var(--heat-white) 100%);
  box-shadow: 0 18px 60px oklch(0.6 0.18 40 / 0.25);
}

.billet::after {
  content: "";
  position: absolute;
  inset: -16px -8px;
  background: inherit;
  border-radius: 8px;
  filter: blur(30px);
  opacity: 0.5;
  z-index: -1;
}

.billet-cap {
  position: absolute;
  left: 0;
  top: 0;
  width: 13px;
  height: 100%;
  background: #0d131b;
  border-radius: 3px 0 0 3px;
  box-shadow: inset -3px 0 4px oklch(0 0 0 / 0.65);
}

.billet-scale {
  position: absolute;
  left: 3%;
  width: 36%;
  height: 100%;
  background:
    repeating-linear-gradient(100deg, transparent 0 22px, oklch(0 0 0 / 0.2) 22px 25px),
    repeating-linear-gradient(82deg, transparent 0 31px, oklch(0.6 0.02 243 / 0.07) 31px 33px);
}

.billet-edge {
  position: absolute;
  left: 32%;
  right: 4px;
  top: 3px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, transparent, oklch(1 0 0 / 0.6) 85%);
}

.sparks { position: absolute; inset: 0; }
.sparks i {
  position: absolute;
  border-radius: 50%;
  background: var(--heat-amber);
  box-shadow: 0 0 8px oklch(0.75 0.16 60 / 0.9);
  animation: ember 5s ease-in-out infinite alternate;
}
.sparks i:nth-child(1)  { width: 3px; height: 3px; right: 9%;  top: 22%; }
.sparks i:nth-child(2)  { width: 2px; height: 2px; right: 13%; top: 64%; background: var(--heat-white); }
.sparks i:nth-child(3)  { width: 4px; height: 4px; right: 17%; top: 30%; animation-delay: -1.2s; }
.sparks i:nth-child(4)  { width: 2px; height: 2px; right: 21%; top: 75%; }
.sparks i:nth-child(5)  { width: 3px; height: 3px; right: 24%; top: 14%; background: var(--heat-orange); animation-delay: -2.6s; }
.sparks i:nth-child(6)  { width: 2px; height: 2px; right: 28%; top: 58%; }
.sparks i:nth-child(7)  { width: 5px; height: 5px; right: 7%;  top: 48%; background: var(--heat-cream); filter: blur(1px); }
.sparks i:nth-child(8)  { width: 2px; height: 2px; right: 33%; top: 36%; animation-delay: -3.4s; }
.sparks i:nth-child(9)  { width: 3px; height: 3px; right: 11%; top: 84%; background: var(--heat-orange); }
.sparks i:nth-child(10) { width: 2px; height: 2px; right: 38%; top: 70%; opacity: 0.7; }
.sparks i:nth-child(11) { width: 2px; height: 2px; right: 15%; top: 8%;  animation-delay: -4.1s; }
.sparks i:nth-child(12) { width: 3px; height: 3px; right: 30%; top: 88%; opacity: 0.8; }

@keyframes ember {
  from { transform: translateY(0); opacity: 1; }
  to   { transform: translateY(-9px); opacity: 0.55; }
}

.billet-tag {
  position: relative;
  z-index: 2;
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-top: 6px;
}

/* ---------- proof plate ---------- */

.plate-wrap { position: relative; z-index: 2; padding-block: 22px 52px; }

.plate {
  position: relative;
  border-radius: 3px;
  padding: 26px 38px 22px;
  background:
    linear-gradient(180deg, oklch(0.62 0.14 45 / 0.16), transparent 16%),
    repeating-linear-gradient(90deg, oklch(1 0 0 / 0.05) 0 1px, transparent 1px 4px),
    linear-gradient(176deg, var(--steel-200), oklch(0.7 0.02 240) 58%, oklch(0.78 0.016 240));
  box-shadow:
    0 24px 60px oklch(0 0 0 / 0.45),
    inset 0 1px 0 oklch(1 0 0 / 0.65),
    inset 0 -2px 4px oklch(0 0 0 / 0.18);
  color: var(--ink-engrave);
}

.plate-screws {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle 5px at 16px 16px, oklch(0.45 0.025 243) 0 3px, oklch(0.85 0.01 240 / 0.9) 3.5px 4.5px, transparent 5px),
    radial-gradient(circle 5px at calc(100% - 16px) 16px, oklch(0.45 0.025 243) 0 3px, oklch(0.85 0.01 240 / 0.9) 3.5px 4.5px, transparent 5px),
    radial-gradient(circle 5px at 16px calc(100% - 16px), oklch(0.45 0.025 243) 0 3px, oklch(0.85 0.01 240 / 0.9) 3.5px 4.5px, transparent 5px),
    radial-gradient(circle 5px at calc(100% - 16px) calc(100% - 16px), oklch(0.45 0.025 243) 0 3px, oklch(0.85 0.01 240 / 0.9) 3.5px 4.5px, transparent 5px);
}

.plate-specs { display: flex; align-items: stretch; }

.plate-cell {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-inline: 28px;
}
.plate-cell:first-child { padding-left: 0; }

/* machined groove dividers between cells (two-tone, not accent stripes) */
.plate-cell + .plate-cell {
  background: linear-gradient(90deg, oklch(0.5 0.02 243 / 0.55) 0 1px, oklch(1 0 0 / 0.55) 1px 2px, transparent 2px);
}

.plate-value {
  white-space: nowrap;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 34px;
  line-height: 1;
  letter-spacing: 0.02em;
  text-shadow: 0 1px 0 oklch(1 0 0 / 0.5);
}

.plate-label {
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: oklch(0.37 0.03 243);
  text-shadow: 0 1px 0 oklch(1 0 0 / 0.4);
}

.plate-certs {
  display: flex;
  flex-wrap: wrap;
  column-gap: 26px;
  row-gap: 4px;
  margin-top: 18px;
  padding-top: 14px;
  /* machined groove, full width */
  background: linear-gradient(180deg, oklch(0.5 0.02 243 / 0.5) 0 1px, oklch(1 0 0 / 0.5) 1px 2px, transparent 2px);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: oklch(0.37 0.03 243);
  text-shadow: 0 1px 0 oklch(1 0 0 / 0.4);
}
.plate-certs strong { font-weight: 800; color: var(--ink-engrave); }

/* ---------- floor section ---------- */

.floor {
  position: relative;
  background: var(--steel-900);
  border-top: 1px solid oklch(1 0 0 / 0.05);
  padding-block: 84px 92px;
}

.floor-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-xl);
}

.eyebrow-floor .eyebrow-rule { background: var(--heat-orange); }

.display-md { font-size: clamp(2.3rem, 4vw, 3.6rem); margin-top: 18px; }

.floor-head-copy { max-width: 600px; }

.floor-lede {
  margin-top: 16px;
  font-size: 16.5px;
  color: var(--text-muted);
  max-width: 52ch;
}

.floor-photo {
  flex-shrink: 0;
  width: 330px;
}
.floor-photo img {
  border-radius: 3px;
  box-shadow: 0 18px 48px oklch(0 0 0 / 0.5), inset 0 1px 0 oklch(1 0 0 / 0.1);
}
.floor-photo figcaption {
  margin-top: 10px;
  font-size: 11.5px;
  line-height: 1.5;
  letter-spacing: 0.04em;
  color: var(--text-faint);
}

.heatline-wrap { margin-top: 64px; }

.heatline {
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--heat-cream), var(--heat-amber) 18%, var(--heat-ember) 48%, oklch(0.42 0.06 250) 82%, oklch(0.36 0.04 248));
  box-shadow: 0 0 18px oklch(0.7 0.16 55 / 0.35);
}

.stations {
  display: flex;
  gap: 40px;
  margin-top: 34px;
}

.station { flex: 1; }

.station-num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 42px;
  line-height: 1;
  display: block;
}
.station:nth-child(1) .station-num { color: var(--heat-amber); }
.station:nth-child(2) .station-num { color: var(--heat-orange); }
.station:nth-child(3) .station-num { color: oklch(0.6 0.12 35); }
.station:nth-child(4) .station-num { color: oklch(0.62 0.06 250); }

.station h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 23px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-top: 10px;
}

.station p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-muted);
}

/* ---------- closer ---------- */

.closer {
  background: var(--steel-950);
  border-top: 1px solid oklch(1 0 0 / 0.05);
  padding-block: 72px 28px;
}

.closer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xl);
}

.closer-motto {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.7rem, 2.6vw, 2.4rem);
  line-height: 1.1;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  max-width: 14em;
}

.closer-sub {
  margin-top: 14px;
  font-size: 15px;
  color: var(--text-muted);
  max-width: 46ch;
}

.closer-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 18px;
  flex-shrink: 0;
}

.closer-card address {
  font-style: normal;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-muted);
}
.closer-card address a:hover { color: var(--heat-amber); }

.concept-note {
  margin-top: 64px;
  padding-top: 16px;
  border-top: 1px solid oklch(1 0 0 / 0.06);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--text-faint);
}

/* ---------- responsive ---------- */

@media (max-width: 1080px) {
  .nav { display: none; }
}

@media (max-width: 860px) {
  .shell { width: calc(100% - 48px); }
  .hero-row { flex-direction: column; align-items: flex-start; gap: 26px; }
  .floor-head { flex-direction: column; gap: 40px; }
  .stations { flex-wrap: wrap; }
  .station { flex: 1 1 40%; }
  .closer-row { flex-direction: column; align-items: flex-start; gap: 40px; }
}

@media (max-width: 640px) {
  .shell { width: calc(100% - 36px); }
  .header-row { padding-block: 12px; }
  .header-phone { display: none; }
  .nav { display: none; }
  .mark-chip { width: 40px; height: 40px; }
  .mark-chip img { width: 28px; height: 28px; }
  .wordmark { font-size: 20px; }
  .lockup-sub { display: none; }
  .btn { padding: 9px 14px; font-size: 13px; }
  .btn-lg { padding: 12px 18px; font-size: 13.5px; }

  .hero { padding-top: 34px; }
  .eyebrow { font-size: 10px; letter-spacing: 0.16em; }
  .eyebrow-ext { display: none; }
  .m-br { display: inline; }
  .hero .display { font-size: clamp(2.9rem, 13.5vw, 3.6rem); margin-top: 16px; }
  .hero-row { margin-top: 20px; gap: 18px; }
  .hero-sub { font-size: 15px; }
  .hero-ctas { width: 100%; }
  .hero-ctas .btn { flex: 1; }

  .billet-stage { height: 84px; margin-top: 22px; }
  .billet { height: 30px; }
  .billet-bloom { width: 320px; height: 240px; }
  .billet-tag { font-size: 10.5px; }

  .plate-wrap { padding-block: 24px 44px; }
  .plate { padding: 18px 20px 16px; }
  .plate-cell { padding-inline: 13px; }
  .plate-cell-volume { display: none; }
  .plate-value { font-size: 20px; }
  .plate-label { font-size: 9px; letter-spacing: 0.12em; }
  .plate-certs { column-gap: 14px; font-size: 9.5px; margin-top: 14px; padding-top: 11px; }
  .plate-ida { display: none; }

  .floor { padding-block: 56px 64px; }
  .floor-photo { width: 100%; max-width: 320px; }
  .heatline-wrap { margin-top: 44px; }
  .stations { gap: 28px; margin-top: 28px; }
  .station { flex: 1 1 100%; }

  .closer { padding-block: 52px 22px; }
  .concept-note { margin-top: 44px; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}