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

:root {
  --canvas:            #181818;
  --canvas-elevated:   #303030;
  --canvas-light:      #ffffff;
  --surface-soft:      #f7f7f7;
  --surface-strong:    #ebebeb;
  --primary:           #da291c;
  --primary-active:    #b01e0a;
  --ink:               #ffffff;
  --body-color:        #969696;
  --body-on-light:     #181818;
  --muted:             #666666;
  --hairline:          #303030;
  --hairline-on-light: #d2d2d2;
  --font:              'Inter', -apple-system, system-ui, sans-serif;
  --sp-xxxs: 4px;
  --sp-xxs:  8px;
  --sp-xs:   16px;
  --sp-sm:   24px;
  --sp-md:   32px;
  --sp-lg:   48px;
  --sp-xl:   64px;
  --sp-xxl:  96px;
  --sp-super:128px;
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
  background: var(--canvas);
  color: var(--body-color);
  font-family: var(--font);
  font-size: 14px;
  font-weight: 400;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
ul { list-style: none; }

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--sp-md);
}

/* NAV */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--canvas);
  border-bottom: 1px solid var(--hairline);
  height: 64px;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand-mark {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.02em;
}
.brand-mark span { color: var(--primary); }

.primary-nav { display: flex; gap: var(--sp-md); }
.nav-link {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.65px;
  text-transform: uppercase;
  color: var(--body-color);
  padding: var(--sp-xxs) 0;
  border-bottom: 2px solid transparent;
  transition: color .2s, border-color .2s;
}
.nav-link:hover, .nav-link.active { color: var(--ink); border-color: var(--primary); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--sp-xxs);
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  transition: transform .2s, opacity .2s;
}

/* HERO */
.hero {
  position: relative;
  height: 90vh;
  min-height: 520px;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
}
.hero-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(24,24,24,.92) 0%, rgba(24,24,24,.3) 55%, transparent 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  padding: var(--sp-xxl) var(--sp-md);
  max-width: 860px;
}
.hero-label {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.1px;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: var(--sp-xs);
}
.hero-title {
  font-size: clamp(36px, 6vw, 80px);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: var(--sp-sm);
}
.hero-sub {
  font-size: 16px;
  color: var(--body-color);
  max-width: 540px;
  margin-bottom: var(--sp-lg);
}
.hero-actions { display: flex; gap: var(--sp-xs); flex-wrap: wrap; }

/* BUTTONS */
.btn-primary {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  padding: 14px 32px;
  height: 48px;
  line-height: 1;
  border: none;
  border-radius: 0;
  cursor: pointer;
  white-space: nowrap;
  transition: background .2s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}
.btn-primary:hover { background: var(--primary-active); }
.btn-outline {
  display: inline-flex;
  align-items: center;
  background: transparent;
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  padding: 14px 32px;
  height: 48px;
  line-height: 1;
  border: 1px solid var(--ink);
  border-radius: 0;
  cursor: pointer;
  white-space: nowrap;
  text-decoration: none;
  transition: border-color .2s, color .2s;
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }

/* SECTIONS */
.section-dark { padding: var(--sp-xxl) 0; background: var(--canvas); }
.section-light { padding: var(--sp-xxl) 0; background: var(--surface-soft); }
.section-elevated { padding: var(--sp-xxl) 0; background: var(--canvas-elevated); }

.section-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.1px;
  text-transform: uppercase;
  color: var(--primary);
  display: block;
  margin-bottom: var(--sp-xs);
}
.section-title {
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--ink);
  line-height: 1.2;
  margin-bottom: var(--sp-sm);
}
.section-title-light { color: var(--body-on-light); }
.section-body { font-size: 14px; color: var(--body-color); max-width: 660px; line-height: 1.7; }
.section-body-light { color: var(--body-on-light); }
.section-head { margin-bottom: var(--sp-xl); }

/* CARD GRID */
.card-grid { display: grid; gap: var(--sp-md); }
.card-grid-3 { grid-template-columns: repeat(3, 1fr); }
.card-grid-2 { grid-template-columns: repeat(2, 1fr); }

.feature-card {
  background: var(--canvas-elevated);
  border: 1px solid var(--hairline);
  overflow: hidden;
}
.feature-card-img { width: 100%; height: 220px; object-fit: cover; }
.feature-card-body { padding: var(--sp-sm); }
.feature-card-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.1px;
  text-transform: uppercase;
  color: var(--primary);
  display: block;
  margin-bottom: var(--sp-xxs);
}
.feature-card-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.3;
  margin-bottom: var(--sp-xs);
}
.feature-card-text { font-size: 14px; color: var(--body-color); line-height: 1.6; }
.feature-card-link {
  display: inline-block;
  margin-top: var(--sp-sm);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.65px;
  text-transform: uppercase;
  color: var(--primary);
  border-bottom: 1px solid var(--primary);
  padding-bottom: 2px;
}

.feature-card-light {
  background: var(--canvas-light);
  border: 1px solid var(--hairline-on-light);
  overflow: hidden;
}
.feature-card-light .feature-card-title { color: var(--body-on-light); }
.feature-card-light .feature-card-text { color: #555; }

/* LIVERY BAND */
.livery-band {
  background: var(--primary);
  padding: var(--sp-xxl) 0;
  text-align: center;
}
.livery-band .section-title { color: var(--ink); margin-bottom: var(--sp-xs); }
.livery-band p { color: rgba(255,255,255,.85); font-size: 16px; max-width: 600px; margin: 0 auto var(--sp-lg); }

/* SPEC CELLS */
.spec-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: var(--sp-md); margin-top: var(--sp-xl); }
.spec-cell { text-align: center; }
.spec-value {
  font-size: clamp(40px,5vw,80px);
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.02em;
  line-height: 1;
  display: block;
  margin-bottom: var(--sp-xxs);
}
.spec-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.1px;
  text-transform: uppercase;
  color: var(--muted);
}

/* ARTICLE PAGE */
.article-hero {
  width: 100%;
  height: 420px;
  object-fit: cover;
}
.article-container { max-width: 820px; margin: 0 auto; padding: var(--sp-xxl) var(--sp-md); }
.article-meta {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.1px;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: var(--sp-sm);
}
.article-title {
  font-size: clamp(26px, 4vw, 48px);
  font-weight: 500;
  color: var(--ink);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: var(--sp-sm);
}
.article-lead {
  font-size: 17px;
  color: var(--body-color);
  line-height: 1.7;
  border-left: 3px solid var(--primary);
  padding-left: var(--sp-sm);
  margin-bottom: var(--sp-xl);
}
.article-body h2 {
  font-size: 24px;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.01em;
  margin: var(--sp-xl) 0 var(--sp-sm);
}
.article-body h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  margin: var(--sp-lg) 0 var(--sp-xs);
}
.article-body p { font-size: 15px; color: var(--body-color); line-height: 1.8; margin-bottom: var(--sp-sm); }
.article-body ul, .article-body ol { margin: var(--sp-xs) 0 var(--sp-sm) var(--sp-md); }
.article-body li { font-size: 15px; color: var(--body-color); line-height: 1.8; margin-bottom: var(--sp-xxs); }
.article-body a { color: var(--primary); border-bottom: 1px solid transparent; }
.article-body a:hover { border-color: var(--primary); }
.article-body strong { color: var(--ink); font-weight: 600; }
.article-img {
  width: 100%;
  height: 360px;
  object-fit: cover;
  margin: var(--sp-xl) 0;
}

/* HAIRLINE */
.hairline { border: none; border-top: 1px solid var(--hairline); margin: var(--sp-xl) 0; }

/* FORM */
.contact-form { max-width: 540px; }
.form-group { margin-bottom: var(--sp-sm); }
.form-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.1px;
  text-transform: uppercase;
  color: var(--body-color);
  margin-bottom: var(--sp-xxs);
}
.form-input {
  width: 100%;
  background: var(--canvas);
  color: var(--ink);
  border: 1px solid var(--hairline);
  border-radius: 4px;
  padding: 14px 16px;
  height: 48px;
  font-size: 14px;
  font-family: var(--font);
  outline: none;
}
.form-input:focus { border-color: var(--primary); }

/* BADGE */
.badge {
  display: inline-block;
  background: var(--canvas-elevated);
  color: var(--ink);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.1px;
  text-transform: uppercase;
  border-radius: 9999px;
  padding: 4px 12px;
}

/* FOOTER */
.site-footer { background: var(--canvas); padding: var(--sp-xl) 0 0; border-top: 1px solid var(--hairline); }
.footer-grid { display: grid; grid-template-columns: 2fr repeat(4, 1fr); gap: var(--sp-xl); padding-bottom: var(--sp-xl); }
.footer-brand { font-size: 18px; font-weight: 700; color: var(--ink); margin-bottom: var(--sp-xs); }
.footer-brand span { color: var(--primary); }
.footer-tagline { font-size: 13px; color: var(--body-color); line-height: 1.6; }
.footer-heading { font-size: 12px; font-weight: 600; letter-spacing: 1.1px; text-transform: uppercase; color: var(--ink); margin-bottom: var(--sp-sm); }
.footer-col ul li { margin-bottom: var(--sp-xxs); }
.footer-col ul a { font-size: 13px; color: var(--body-color); }
.footer-col ul a:hover { color: var(--ink); }
.footer-col ul li { font-size: 13px; color: var(--body-color); }
.footer-body { font-size: 13px; color: var(--body-color); line-height: 1.6; }
.footer-bottom {
  border-top: 1px solid var(--hairline);
  padding: var(--sp-sm) 0;
}
.footer-bottom .container { display: flex; justify-content: space-between; align-items: center; gap: var(--sp-sm); flex-wrap: wrap; }
.footer-bottom p { font-size: 12px; color: var(--muted); }
.footer-bottom a { color: var(--muted); }
.footer-bottom a:hover { color: var(--ink); }

/* COOKIE BANNER */
.cookie-banner {
  position: fixed;
  bottom: var(--sp-md);
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  background: var(--canvas-elevated);
  border: 1px solid var(--hairline);
  padding: var(--sp-sm) var(--sp-md);
  max-width: 680px;
  width: calc(100% - var(--sp-xl));
  display: none;
}
.cookie-banner.visible { display: block; }
.cookie-inner { display: flex; align-items: center; gap: var(--sp-md); flex-wrap: wrap; }
.cookie-inner p { font-size: 13px; color: var(--body-color); flex: 1; }
.cookie-inner a { color: var(--primary); }
.cookie-actions { display: flex; gap: var(--sp-xs); }

/* BREADCRUMB */
.breadcrumb { padding: var(--sp-sm) 0; }
.breadcrumb ol { display: flex; gap: var(--sp-xxs); flex-wrap: wrap; }
.breadcrumb li { font-size: 12px; color: var(--muted); }
.breadcrumb li + li::before { content: '›'; margin-right: var(--sp-xxs); }
.breadcrumb a { color: var(--body-color); }
.breadcrumb a:hover { color: var(--ink); }

/* RELATED */
.related-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: var(--sp-md); }

/* PAGE */
.page-container { max-width: 860px; margin: 0 auto; padding: var(--sp-xxl) var(--sp-md); }
.page-title { font-size: clamp(26px,4vw,48px); font-weight: 500; color: var(--ink); letter-spacing: -0.02em; margin-bottom: var(--sp-lg); }
.page-body h2 { font-size: 22px; font-weight: 500; color: var(--ink); margin: var(--sp-xl) 0 var(--sp-sm); }
.page-body p { font-size: 15px; color: var(--body-color); line-height: 1.8; margin-bottom: var(--sp-sm); }
.page-body ul { margin: var(--sp-xs) 0 var(--sp-sm) var(--sp-md); }
.page-body li { font-size: 15px; color: var(--body-color); line-height: 1.8; margin-bottom: var(--sp-xxs); }
.page-body a { color: var(--primary); }
.page-updated { font-size: 12px; color: var(--muted); margin-bottom: var(--sp-xl); }

/* RESPONSIVE */
@media (max-width: 1024px) {
  .card-grid-3 { grid-template-columns: repeat(2,1fr); }
  .spec-grid { grid-template-columns: repeat(2,1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .related-grid { grid-template-columns: repeat(2,1fr); }
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .primary-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--canvas);
    flex-direction: column;
    padding: var(--sp-sm) var(--sp-md);
    border-bottom: 1px solid var(--hairline);
    gap: var(--sp-xs);
  }
  .primary-nav.open { display: flex; }
  .site-header { position: relative; }
  .card-grid-3 { grid-template-columns: 1fr; }
  .card-grid-2 { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr; }
  .spec-grid { grid-template-columns: repeat(2,1fr); }
  .footer-grid { grid-template-columns: 1fr; gap: var(--sp-lg); }
  .hero-content { padding: var(--sp-lg) var(--sp-md); }
}

@media (max-width: 640px) {
  .hero { height: 70vh; }
  .article-hero { height: 260px; }
  .spec-grid { grid-template-columns: repeat(2,1fr); }
  .footer-bottom .container { flex-direction: column; text-align: center; }
}