:root {
  color-scheme: dark;
  --bg: #0b0e12;
  --panel: #111821;
  --panel-2: #161f2b;
  --text: #f6f2eb;
  --muted: #aeb7c3;
  --line: rgba(255, 255, 255, 0.14);
  --red: #e2392d;
  --amber: #c79a57;
  --steel: #738092;
  --white: #ffffff;
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.42);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 18% 0%, rgba(226, 57, 45, 0.18), transparent 30rem),
    radial-gradient(circle at 85% 10%, rgba(199, 154, 87, 0.14), transparent 26rem),
    linear-gradient(180deg, #090b0f 0%, var(--bg) 48%, #0e1116 100%);
  color: var(--text);
  min-height: 100vh;
}

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

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

.site-header {
  width: min(1180px, calc(100% - 40px));
  min-height: 74px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.brand-mark {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: linear-gradient(145deg, #f4f4f3 0%, #d7dce2 100%);
  color: #111821;
  font-size: 0.82rem;
  border-radius: 4px;
  box-shadow: inset 0 -8px 20px rgba(0, 0, 0, 0.12);
}

.nav {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--muted);
  font-size: 0.92rem;
}

.nav a {
  padding: 8px 0;
  border-bottom: 2px solid transparent;
}

.nav a:hover,
.nav a[aria-current="page"] {
  color: var(--white);
  border-bottom-color: var(--red);
}

.hero,
.page-hero,
.section,
.contact-layout {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.hero {
  min-height: calc(100vh - 74px);
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(420px, 1fr);
  align-items: center;
  gap: 48px;
  padding: 64px 0 56px;
}

.hero-copy {
  max-width: 640px;
}

.hero h1 {
  font-size: clamp(4.4rem, 10vw, 8rem);
  overflow-wrap: normal;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--amber);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.76rem;
  font-weight: 800;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 20px;
  font-size: clamp(4.4rem, 12vw, 9.8rem);
  line-height: 0.82;
  letter-spacing: 0;
  text-transform: uppercase;
  overflow-wrap: anywhere;
}

h2 {
  font-size: clamp(2rem, 5vw, 4.2rem);
  line-height: 0.95;
  letter-spacing: 0;
  margin-bottom: 0;
}

h3 {
  font-size: 1.25rem;
  line-height: 1.12;
  margin-bottom: 12px;
}

.lead {
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  line-height: 1.55;
  max-width: 600px;
}

.hero-actions,
.contact-methods,
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 4px;
  font-weight: 800;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
  border-color: rgba(255, 255, 255, 0.34);
}

.button.primary {
  color: var(--white);
  background: var(--red);
  border-color: var(--red);
}

.button.secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.text-link {
  display: inline-flex;
  align-items: center;
  color: var(--white);
  border-bottom: 2px solid var(--red);
  font-weight: 800;
}

.hero-media {
  margin: 0;
  position: relative;
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.hero-media img {
  width: 100%;
  aspect-ratio: 1.36 / 1;
  object-fit: cover;
}

.hero-media figcaption {
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 18px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 14px;
  border: 1px solid var(--line);
  background: rgba(8, 11, 15, 0.72);
  backdrop-filter: blur(16px);
  color: var(--muted);
}

.hero-media figcaption strong {
  color: var(--white);
}

.section {
  padding: 86px 0;
  border-top: 1px solid var(--line);
}

.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
}

.body-copy {
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.72;
}

.grid-section {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.feature,
.design-grid article,
.archive-card,
.interest-form,
.notice,
.studio-panel {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.075), rgba(255, 255, 255, 0.025));
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.18);
}

.feature {
  min-height: 235px;
  padding: 22px;
}

.feature span,
.archive-card span,
.design-grid article span,
.timeline span {
  display: inline-block;
  margin-bottom: 30px;
  color: var(--amber);
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 900;
}

.feature p,
.archive-card p,
.design-grid p,
.timeline p,
.notice p,
.studio-panel p,
.form-note {
  color: var(--muted);
  line-height: 1.58;
}

.product-band {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 42px;
  align-items: center;
}

.product-copy p {
  color: var(--muted);
  line-height: 1.65;
}

.image-stack {
  display: grid;
  grid-template-columns: 1fr 0.72fr;
  gap: 14px;
  align-items: end;
}

.image-stack img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  border: 1px solid var(--line);
}

.image-stack img:last-child {
  height: 320px;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 28px;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border: 1px solid var(--line);
}

.timeline div {
  padding: 24px;
  min-height: 210px;
  border-right: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.035);
}

.timeline div:last-child {
  border-right: 0;
}

.timeline strong {
  display: block;
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.page-hero {
  padding: 92px 0 76px;
  max-width: 1000px;
}

.page-hero h1 {
  font-size: clamp(3rem, 8vw, 6.8rem);
  line-height: 0.92;
  max-width: 980px;
}

.page-hero p:not(.eyebrow) {
  color: var(--muted);
  font-size: 1.16rem;
  line-height: 1.62;
  max-width: 760px;
}

.page-hero.compact {
  padding-bottom: 44px;
}

.design-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.design-grid article {
  padding: 28px;
  min-height: 300px;
}

.design-grid h2 {
  font-size: clamp(1.7rem, 3vw, 2.7rem);
  margin-bottom: 16px;
}

.studio-panel,
.notice {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 34px;
  padding: 28px;
}

.spec-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.spec-list li {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 18px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.spec-list li:last-child {
  border-bottom: 0;
}

.spec-list span {
  color: var(--muted);
}

.visual-strip {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.visual-strip img {
  width: 100%;
  height: 390px;
  object-fit: cover;
  border: 1px solid var(--line);
}

.archive-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 18px;
}

.archive-card {
  overflow: hidden;
}

.archive-card.large {
  grid-row: span 2;
}

.archive-card img {
  width: 100%;
  height: 280px;
  object-fit: cover;
}

.archive-card.large img {
  height: 470px;
}

.archive-card div {
  padding: 24px;
}

.archive-card span {
  margin-bottom: 18px;
}

.archive-card h2 {
  font-size: clamp(1.7rem, 3vw, 3rem);
  margin-bottom: 14px;
}

.notice {
  align-items: center;
}

.contact-layout {
  min-height: calc(100vh - 74px);
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 46px;
  align-items: center;
  padding: 76px 0;
}

.contact-copy h1 {
  font-size: clamp(3rem, 8vw, 6.4rem);
  line-height: 0.92;
}

.contact-copy p {
  color: var(--muted);
  font-size: 1.12rem;
  line-height: 1.62;
}

.interest-form {
  padding: 26px;
}

.interest-form label {
  display: grid;
  gap: 8px;
  margin-bottom: 18px;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.interest-form input,
.interest-form select,
.interest-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.22);
  color: var(--text);
  padding: 13px 14px;
  font: inherit;
}

.interest-form textarea {
  resize: vertical;
}

.interest-form .button {
  width: 100%;
  cursor: pointer;
  font: inherit;
}

.form-note {
  margin: 14px 0 0;
  font-size: 0.9rem;
}

.site-footer {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 28px 0 40px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  color: var(--muted);
}

.site-footer strong {
  display: block;
  color: var(--white);
  margin-bottom: 5px;
}

.footer-links a {
  color: var(--muted);
}

.footer-links a:hover {
  color: var(--white);
}

@media (max-width: 920px) {
  .site-header,
  .site-footer {
    width: min(100% - 28px, 1180px);
  }

  .hero,
  .page-hero,
  .section,
  .contact-layout {
    width: min(100% - 28px, 1180px);
  }

  .hero,
  .split,
  .product-band,
  .studio-panel,
  .notice,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 50px;
  }

  .grid-section,
  .timeline,
  .design-grid,
  .archive-grid,
  .visual-strip {
    grid-template-columns: 1fr;
  }

  .timeline div {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .timeline div:last-child {
    border-bottom: 0;
  }

  .archive-card.large {
    grid-row: auto;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 620px) {
  .site-header {
    min-height: 68px;
    gap: 16px;
  }

  .brand span:last-child {
    display: none;
  }

  .nav {
    gap: 12px;
    font-size: 0.86rem;
  }

  h1,
  .page-hero h1,
  .contact-copy h1 {
    font-size: clamp(2.65rem, 14.5vw, 4.8rem);
    line-height: 0.9;
  }

  .hero-media figcaption,
  .spec-list li,
  .image-stack {
    grid-template-columns: 1fr;
  }

  .hero-media figcaption {
    position: static;
    border-left: 0;
    border-right: 0;
    border-bottom: 0;
  }

  .image-stack img,
  .image-stack img:last-child,
  .visual-strip img,
  .archive-card img,
  .archive-card.large img {
    height: auto;
    aspect-ratio: 1.35 / 1;
  }
}

/* GTSEAT home v0.2: product-first, automotive-style landing pass. */
.home-page {
  background:
    linear-gradient(180deg, rgba(226, 57, 45, 0.1), transparent 34rem),
    radial-gradient(circle at 50% 20%, rgba(255, 255, 255, 0.08), transparent 34rem),
    #050607;
}

.home-page .site-header {
  width: min(1500px, calc(100% - 40px));
  border-bottom-color: rgba(255, 255, 255, 0.09);
}

.gt-hero {
  width: min(1500px, calc(100% - 40px));
  min-height: calc(100vh - 74px);
  margin: 0 auto;
  padding: 22px 0 34px;
  display: grid;
  grid-template-rows: auto auto minmax(520px, 1fr) auto;
  gap: clamp(16px, 2.2vw, 28px);
}

.gt-hero-kicker,
.gt-hero-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  color: rgba(246, 242, 235, 0.58);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.gt-hero-title {
  display: grid;
  grid-template-columns: 0.44fr 1fr;
  gap: clamp(20px, 4vw, 60px);
  align-items: end;
}

.gt-hero-title .eyebrow {
  margin: 0 0 0.25em;
  color: var(--red);
  font-size: clamp(3rem, 11vw, 10.5rem);
  line-height: 0.78;
  letter-spacing: 0;
}

.gt-hero-title h1 {
  margin: 0;
  max-width: 900px;
  color: var(--text);
  font-size: clamp(2.35rem, 5.2vw, 6.2rem);
  line-height: 0.9;
  letter-spacing: -0.02em;
  text-transform: none;
  overflow-wrap: normal;
}

.gt-product-stage {
  position: relative;
  width: 100vw;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  display: grid;
  align-items: center;
  min-height: clamp(560px, 60vh, 780px);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background:
    linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.035) 48%, transparent 100%),
    radial-gradient(ellipse at 50% 65%, rgba(255, 255, 255, 0.08), transparent 44%);
}

.gt-product-stage::before {
  content: "";
  position: absolute;
  left: 2%;
  right: 2%;
  bottom: 13%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(246, 242, 235, 0.34), transparent);
}

.gt-product-stage img {
  position: relative;
  z-index: 1;
  width: min(96vw, 1840px);
  margin: 0 auto;
  max-height: min(66vh, 820px);
  object-fit: contain;
  filter: drop-shadow(0 38px 42px rgba(0, 0, 0, 0.62));
}

.gt-hero-bottom {
  align-items: end;
  text-transform: none;
  letter-spacing: 0;
}

.gt-hero-bottom p {
  max-width: 660px;
  margin: 0;
  color: rgba(246, 242, 235, 0.72);
  font-size: clamp(1rem, 1.4vw, 1.28rem);
  line-height: 1.6;
}

.gt-statement,
.gt-gallery,
.gt-principles,
.gt-cta {
  width: min(1380px, calc(100% - 40px));
  margin: 0 auto;
  padding: clamp(70px, 10vw, 140px) 0;
  border-top: 1px solid rgba(255, 255, 255, 0.09);
}

.gt-statement {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.72fr);
  gap: clamp(34px, 7vw, 100px);
  align-items: start;
}

.gt-statement span,
.gt-principle-heading span {
  display: block;
  margin-bottom: 22px;
  color: var(--red);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.gt-statement h2,
.gt-principle-heading h2,
.gt-cta h2 {
  max-width: 980px;
  font-size: clamp(2.8rem, 7vw, 7.8rem);
  line-height: 0.88;
  letter-spacing: -0.025em;
}

.gt-statement p {
  color: rgba(246, 242, 235, 0.66);
  font-size: clamp(1.05rem, 1.7vw, 1.35rem);
  line-height: 1.65;
}

.gt-gallery {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: clamp(16px, 2vw, 28px);
  align-items: stretch;
}

.gt-gallery figure {
  margin: 0;
  position: relative;
  overflow: hidden;
  background: #0b0d0f;
}

.gt-gallery img {
  width: 100%;
  height: 100%;
  min-height: 320px;
  object-fit: cover;
}

.gt-gallery-main img {
  object-fit: contain;
  padding: clamp(20px, 4vw, 58px);
  background: radial-gradient(circle at 50% 50%, #1a1d20, #050607 68%);
}

.gt-gallery figcaption {
  position: absolute;
  left: 18px;
  bottom: 16px;
  color: rgba(246, 242, 235, 0.82);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.gt-gallery-side {
  display: grid;
  gap: clamp(16px, 2vw, 28px);
}

.gt-principles {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 1.1fr);
  gap: clamp(34px, 6vw, 86px);
}

.gt-principle-list {
  border-top: 1px solid rgba(255, 255, 255, 0.16);
}

.gt-principle-list div {
  display: grid;
  grid-template-columns: minmax(180px, 0.5fr) minmax(0, 1fr);
  gap: 28px;
  padding: 28px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
}

.gt-principle-list strong {
  font-size: 1.1rem;
}

.gt-principle-list p {
  margin: 0;
  color: rgba(246, 242, 235, 0.64);
  line-height: 1.6;
}

.gt-cta {
  min-height: 70vh;
  display: grid;
  align-content: center;
  justify-items: start;
  background:
    linear-gradient(180deg, rgba(5, 6, 7, 0), #050607 84%),
    radial-gradient(circle at 72% 28%, rgba(226, 57, 45, 0.18), transparent 24rem);
}

.gt-cta .eyebrow {
  color: var(--red);
}

@media (max-width: 980px) {
  .gt-hero-title,
  .gt-statement,
  .gt-gallery,
  .gt-principles {
    grid-template-columns: 1fr;
  }

  .gt-hero-title .eyebrow {
    font-size: clamp(3.2rem, 18vw, 7.4rem);
  }

  .gt-hero-title h1 {
    font-size: clamp(2rem, 8.5vw, 4.8rem);
  }

  .gt-hero-bottom {
    align-items: start;
    flex-direction: column;
  }
}

@media (max-width: 620px) {
  .home-page .site-header,
  .gt-hero,
  .gt-statement,
  .gt-gallery,
  .gt-principles,
  .gt-cta {
    width: min(100% - 28px, 1500px);
  }

  .gt-hero {
    min-height: auto;
    padding: 18px 0 42px;
    gap: 18px;
  }

  .gt-hero-kicker {
    flex-direction: column;
    gap: 6px;
  }

  .gt-product-stage {
    min-height: clamp(300px, 50vh, 460px);
    margin-left: -14px;
    margin-right: -14px;
  }

  .gt-product-stage img {
    width: 100%;
    max-height: 430px;
    padding: 0 8px;
  }

  .gt-statement h2,
  .gt-principle-heading h2,
  .gt-cta h2 {
    font-size: clamp(2.4rem, 14vw, 4.8rem);
  }

  .gt-gallery img {
    min-height: 250px;
  }

  .gt-gallery-main img {
    object-fit: contain;
    padding: 18px;
  }

  .gt-principle-list div {
    grid-template-columns: 1fr;
    gap: 10px;
  }
}