:root {
  --ink: #f5efe6;
  --muted: rgba(229, 218, 205, 0.76);
  --line: rgba(255, 255, 255, 0.1);
  --charcoal: #101114;
  --charcoal-soft: #17191f;
  --panel: rgba(255, 255, 255, 0.05);
  --panel-strong: rgba(255, 255, 255, 0.08);
  --gold: #d8a14f;
  --gold-soft: #f0c784;
  --copper: #b86a36;
  --blue: #7e9cb9;
  --radius: 24px;
  --shadow: 0 22px 70px rgba(0, 0, 0, 0.28);
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(216, 161, 79, 0.18), transparent 24%),
    radial-gradient(circle at 80% 15%, rgba(76, 91, 120, 0.16), transparent 22%),
    linear-gradient(180deg, #0f1114 0%, #171a20 45%, #0f1114 100%);
}

.container {
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(20px);
  background: rgba(9, 10, 13, 0.68);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header-row {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: inherit;
}

.site-logo {
  width: clamp(150px, 22vw, 240px);
  height: auto;
  display: block;
  border-radius: 10px;
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.18);
}

.brand-copy {
  display: none;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 20px;
}

.site-nav a {
  color: rgba(245, 239, 230, 0.88);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.2s ease, opacity 0.2s ease;
}

.site-nav a:hover {
  color: var(--gold-soft);
}

.menu-toggle {
  display: none;
  width: 46px;
  height: 46px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: transparent;
  color: inherit;
}

.hero {
  padding: 54px 0 20px;
}

.hero-panel {
  min-height: calc(100svh - 132px);
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: 28px;
  align-items: stretch;
  background:
    linear-gradient(140deg, rgba(10, 11, 15, 0.94), rgba(26, 28, 34, 0.84)),
    linear-gradient(135deg, rgba(184, 106, 54, 0.18), rgba(216, 161, 79, 0.08));
  color: #f8f3ec;
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 34px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.hero-copy {
  padding: 56px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  animation: slideUp 0.9s ease both;
}

.eyebrow {
  margin: 0 0 14px;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.74rem;
  color: rgba(240, 199, 132, 0.84);
}

.hero h1,
.section-heading h2,
.contact-hero h1 {
  margin: 0;
  line-height: 0.98;
  letter-spacing: -0.04em;
}

.hero h1 {
  font-size: clamp(3rem, 7vw, 6.2rem);
  max-width: 9ch;
}

.lead {
  font-size: 1.05rem;
  line-height: 1.7;
  max-width: 58ch;
  color: rgba(248, 243, 236, 0.82);
}

.hero-actions,
.inline-actions,
.contact-actions,
.brand-banner-track {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.button,
button,
.filter-chip {
  font: inherit;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border-radius: 999px;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 0.25s ease, background 0.25s ease, border-color 0.25s ease, color 0.25s ease, box-shadow 0.25s ease;
}

.button:hover,
.filter-chip:hover,
button:hover {
  transform: translateY(-2px);
}

.button.primary {
  background: linear-gradient(135deg, var(--gold), var(--gold-soft));
  color: #131313;
  font-weight: 700;
  box-shadow: 0 14px 24px rgba(216, 161, 79, 0.18);
}

.button.secondary {
  border-color: rgba(255, 255, 255, 0.16);
  color: #fff5ea;
  background: rgba(255, 255, 255, 0.02);
}

.hero-side {
  position: relative;
  padding: 34px;
  background:
    linear-gradient(160deg, rgba(255, 255, 255, 0.08), transparent 48%),
    repeating-linear-gradient(-45deg, rgba(255, 255, 255, 0.05) 0 14px, rgba(255, 255, 255, 0.01) 14px 28px);
}

.hero-statue {
  height: 100%;
  min-height: 420px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 28px;
  padding: 24px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.02)),
    radial-gradient(circle at 50% 0%, rgba(216, 161, 79, 0.22), transparent 36%);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  animation: fadeIn 1s ease both;
}

.tire-visual {
  align-self: center;
  width: min(320px, 80%);
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    radial-gradient(circle at center, rgba(17, 17, 17, 0.96) 0 22%, rgba(240, 230, 218, 0.92) 22% 33%, transparent 33%),
    repeating-radial-gradient(circle at center, #0f1012 0 11px, #6f7782 11px 14px, #0f1012 14px 18px),
    radial-gradient(circle at 40% 35%, rgba(255, 255, 255, 0.16), transparent 18%);
  box-shadow: inset 0 0 0 14px rgba(255, 255, 255, 0.08), 0 30px 50px rgba(0, 0, 0, 0.24);
  animation: rollIn 1.4s ease both;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.hero-metrics div {
  padding: 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.hero-metrics div:hover {
  transform: translateY(-4px);
  border-color: rgba(240, 199, 132, 0.22);
}

.hero-metrics span {
  display: block;
}

.hero-metrics span:first-child {
  font-size: 1.8rem;
  font-weight: 700;
}

.hero-metrics span:last-child {
  color: rgba(245, 239, 230, 0.72);
}

section {
  padding: 26px 0;
}

.surface,
.cta-panel,
.catalog-toolbar,
.contact-panel,
.quote-builder,
.contact-card,
.model-card,
.brand-band,
.brand-banner {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 10px 34px rgba(0, 0, 0, 0.14);
}

.section-shell {
  padding: 28px;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: end;
  margin-bottom: 22px;
}

.section-heading h2,
.contact-hero h1 {
  font-size: clamp(2.2rem, 5vw, 4rem);
}

.section-copy {
  margin: 0;
  max-width: 62ch;
  color: var(--muted);
  line-height: 1.7;
}

.brand-banner {
  padding: 22px 24px;
  overflow: hidden;
  position: relative;
}

.brand-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(216, 161, 79, 0.08), transparent 32%, transparent 68%, rgba(126, 156, 185, 0.08));
  pointer-events: none;
}

.brand-banner-track {
  align-items: center;
  justify-content: space-between;
  position: relative;
  z-index: 1;
}

.brand-banner-item {
  flex: 1;
  min-width: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 16px 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  animation: shimmerFloat 5.5s ease-in-out infinite;
}

.brand-banner-item:nth-child(2) {
  animation-delay: 0.6s;
}

.brand-banner-item img {
  width: 94px;
  max-height: 54px;
  object-fit: contain;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 12px;
  padding: 6px;
}

.brand-banner-copy strong {
  display: block;
  font-size: 1rem;
}

.brand-banner-copy span {
  color: var(--muted);
  font-size: 0.92rem;
}

.brand-grid,
.catalog-grid,
.contact-grid,
.stats-grid {
  display: grid;
  gap: 18px;
}

.brand-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.brand-band,
.model-card,
.contact-card,
.quote-builder {
  padding: 24px;
}

.brand-visual {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 18px;
  align-items: center;
  margin-bottom: 18px;
}

.brand-logo-image {
  width: 100%;
  max-width: 130px;
  padding: 10px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.88);
  object-fit: contain;
}

.brand-product-image {
  width: 100%;
  max-height: 170px;
  object-fit: contain;
  filter: drop-shadow(0 18px 22px rgba(0, 0, 0, 0.18));
}

.brand-band.warm,
.model-card.warm {
  background: linear-gradient(180deg, rgba(39, 29, 21, 0.86), rgba(25, 21, 18, 0.82));
}

.brand-band.cool,
.model-card.cool {
  background: linear-gradient(180deg, rgba(21, 27, 35, 0.88), rgba(15, 19, 25, 0.82));
}

.brand-band h3,
.model-card h3,
.contact-card h3,
.quote-builder h3 {
  margin: 0;
  font-size: 1.65rem;
}

.brand-band p,
.contact-card p,
.quote-builder p {
  color: var(--muted);
}

.mini-tags,
.tag-row,
.filter-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.mini-tags span,
.tag-row span {
  display: inline-flex;
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.82rem;
  color: rgba(245, 239, 230, 0.86);
  background: rgba(255, 255, 255, 0.02);
}

.stats-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.stat-block {
  padding: 24px;
  border-radius: 22px;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.04));
  border: 1px solid var(--line);
  transition: transform 0.28s ease, border-color 0.28s ease;
}

.stat-block:hover {
  transform: translateY(-5px);
  border-color: rgba(216, 161, 79, 0.22);
}

.stat-block strong {
  display: block;
  font-size: 2.1rem;
  margin-bottom: 8px;
}

.stat-block span {
  color: var(--muted);
}

.catalog-toolbar {
  padding: 22px;
  display: grid;
  gap: 16px;
}

.catalog-toolbar input,
.catalog-toolbar select,
.quote-builder input,
.quote-builder select,
.quote-builder textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.03);
  padding: 14px 16px;
  color: inherit;
}

.catalog-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 18px;
}

.model-card {
  display: grid;
  gap: 16px;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.model-card:hover,
.brand-band:hover,
.contact-card:hover,
.quote-builder:hover {
  transform: translateY(-5px);
  border-color: rgba(216, 161, 79, 0.18);
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.2);
}

.model-media {
  min-height: 220px;
  display: grid;
  place-items: center;
  padding: 18px;
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
  overflow: hidden;
}

.model-media img {
  width: 100%;
  max-height: 220px;
  object-fit: contain;
  transition: transform 0.45s ease;
}

.model-card:hover .model-media img,
.brand-band:hover .brand-product-image {
  transform: scale(1.04);
}

.model-head {
  display: grid;
  gap: 8px;
}

.model-head .eyebrow {
  color: var(--gold-soft);
  margin: 0;
}

.model-copy,
.empty-state,
.bullet-list,
.contact-card ul,
.trust-list {
  color: var(--muted);
  line-height: 1.7;
  margin: 0;
}

.bullet-list,
.contact-card ul,
.trust-list {
  padding-left: 18px;
}

.source-link,
.contact-link {
  color: var(--gold-soft);
  text-decoration: none;
  font-weight: 600;
}

.contact-link:hover,
.source-link:hover {
  color: #fff;
}

.cta-panel {
  padding: 28px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: center;
}

.contact-hero {
  padding: 54px 0 10px;
}

.contact-grid {
  grid-template-columns: 0.88fr 1.12fr;
  align-items: start;
}

.quote-builder form {
  display: grid;
  gap: 14px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

textarea {
  min-height: 136px;
  resize: vertical;
}

.quote-output {
  min-height: 180px;
}

.filter-chip {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
  color: inherit;
  padding: 10px 14px;
  border-radius: 999px;
  cursor: pointer;
}

.filter-chip.active {
  background: linear-gradient(135deg, var(--gold), var(--gold-soft));
  color: #141414;
  border-color: transparent;
}

.footer {
  padding: 26px 0 48px;
}

.footer-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  color: var(--muted);
}

.footer-row a {
  color: inherit;
  text-decoration: none;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes rollIn {
  from {
    transform: translateY(24px) rotate(-16deg) scale(0.92);
    opacity: 0;
  }
  to {
    transform: translateY(0) rotate(0) scale(1);
    opacity: 1;
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(28px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes shimmerFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

@media (max-width: 960px) {
  .hero-panel,
  .contact-grid,
  .cta-panel,
  .catalog-grid,
  .brand-grid,
  .stats-grid,
  .brand-banner-track {
    grid-template-columns: 1fr;
  }

  .hero-panel {
    min-height: auto;
  }

  .hero-copy,
  .hero-side {
    padding: 28px;
  }

  .site-nav {
    position: fixed;
    top: 78px;
    left: 16px;
    right: 16px;
    display: none;
    flex-direction: column;
    align-items: flex-start;
    padding: 18px;
    background: rgba(19, 21, 26, 0.98);
    border: 1px solid var(--line);
    border-radius: 22px;
    box-shadow: var(--shadow);
  }

  .site-nav.open {
    display: flex;
  }

  .menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .hero h1 {
    max-width: 11ch;
  }

  .brand-visual,
  .brand-banner-track {
    grid-template-columns: 1fr;
  }

  .brand-logo-image {
    max-width: 180px;
  }

  .brand-banner-item {
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(var(--max), calc(100% - 20px));
  }

  .hero {
    padding-top: 24px;
  }

  .hero-copy,
  .hero-side,
  .section-shell,
  .brand-band,
  .model-card,
  .contact-card,
  .quote-builder,
  .cta-panel,
  .catalog-toolbar,
  .brand-banner {
    padding: 20px;
  }

  .hero-metrics {
    grid-template-columns: 1fr;
  }

  .form-grid,
  .section-heading,
  .footer-row {
    grid-template-columns: 1fr;
    display: grid;
  }
}