@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

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

:root {
  --canvas: #181818;
  --canvas-elevated: #303030;
  --canvas-light: #ffffff;
  --surface-soft-light: #f7f7f7;
  --surface-strong-light: #ebebeb;
  --primary: #da291c;
  --primary-active: #b01e0a;
  --hairline: #303030;
  --hairline-on-light: #d2d2d2;
  --ink: #ffffff;
  --body: #969696;
  --body-on-light: #181818;
  --muted: #666666;
  --on-primary: #ffffff;
  --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 { scroll-behavior: smooth; }

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

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

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

/* NAV */
.site-nav {
  background: var(--canvas);
  border-bottom: 1px solid var(--hairline);
  height: 64px;
  position: sticky;
  top: 0;
  z-index: 100;
}
.site-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.nav-logo {
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.nav-logo span { color: var(--primary); }
.nav-links {
  display: flex;
  gap: var(--sp-md);
  list-style: none;
}
.nav-links a {
  font-size: 13px;
  font-weight: 600;
  color: var(--body);
  text-transform: uppercase;
  letter-spacing: 0.65px;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--ink); }
.nav-links a.active { color: var(--ink); }
.nav-hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--sp-xxs);
  flex-direction: column;
  gap: 5px;
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  transition: all 0.2s;
}

/* HERO */
.hero-band {
  position: relative;
  width: 100%;
  height: 70vh;
  min-height: 480px;
  overflow: hidden;
  background: var(--canvas);
}
.hero-band img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(24,24,24,0.85) 100%);
}
.hero-content {
  position: absolute;
  bottom: var(--sp-xxl);
  left: 0;
  right: 0;
  padding: 0 var(--sp-md);
  max-width: 1280px;
  margin: 0 auto;
}
.hero-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.1px;
  color: var(--primary);
  margin-bottom: var(--sp-xs);
}
.hero-h1 {
  font-size: 80px;
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -1.6px;
  color: var(--ink);
  max-width: 900px;
  margin-bottom: var(--sp-sm);
}
.hero-sub {
  font-size: 14px;
  color: var(--body);
  max-width: 560px;
  margin-bottom: var(--sp-md);
}
.btn-primary {
  display: inline-block;
  background: var(--primary);
  color: var(--on-primary);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  padding: 14px 32px;
  height: 48px;
  line-height: 1;
  border-radius: 0;
  border: none;
  cursor: pointer;
  transition: background 0.15s;
}
.btn-primary:hover { background: var(--primary-active); }
.btn-outline {
  display: inline-block;
  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-radius: 0;
  border: 1px solid var(--ink);
  cursor: pointer;
  margin-left: var(--sp-xs);
  transition: border-color 0.15s, color 0.15s;
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }

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

/* SECTION HEADERS */
.section-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.1px;
  color: var(--primary);
  margin-bottom: var(--sp-xs);
}
.section-title {
  font-size: 36px;
  font-weight: 500;
  letter-spacing: -0.36px;
  line-height: 1.2;
  color: var(--ink);
  margin-bottom: var(--sp-xs);
}
.section-body {
  font-size: 14px;
  color: var(--body);
  max-width: 640px;
}

/* BAND - DARK */
.band-dark {
  background: var(--canvas);
  padding: var(--sp-xxl) 0;
}
.band-elevated {
  background: var(--canvas-elevated);
  padding: var(--sp-xxl) 0;
}

/* BAND - LIGHT */
.band-light {
  background: var(--canvas-light);
  padding: var(--sp-xxl) 0;
}
.band-light .section-title { color: var(--body-on-light); }
.band-light .section-body { color: #444; }
.band-light .section-label { color: var(--primary); }

/* BAND - RED ACCENT */
.band-accent {
  background: var(--primary);
  padding: var(--sp-xxl) 0;
  text-align: center;
}
.band-accent .section-title { color: var(--on-primary); margin-bottom: var(--sp-sm); }
.band-accent .section-body { color: rgba(255,255,255,0.85); margin: 0 auto var(--sp-md); }

/* ARTICLE CARDS - DARK */
.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-radius: 0;
  overflow: hidden;
  border: 1px solid var(--hairline);
  transition: box-shadow 0.2s;
}
.feature-card:hover { box-shadow: 0 4px 8px rgba(0,0,0,0.3); }
.feature-card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}
.feature-card-body { padding: var(--sp-sm); }
.feature-card-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.1px;
  color: var(--primary);
  margin-bottom: var(--sp-xxs);
}
.feature-card-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.2;
  margin-bottom: var(--sp-xxs);
}
.feature-card-excerpt {
  font-size: 13px;
  color: var(--body);
  line-height: 1.5;
  margin-bottom: var(--sp-sm);
}
.feature-card-meta {
  font-size: 12px;
  color: var(--muted);
}
.feature-card-link {
  display: inline-block;
  margin-top: var(--sp-xs);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.65px;
  color: var(--primary);
}

/* ARTICLE CARDS - LIGHT */
.feature-card-light {
  background: var(--canvas-light);
  border: 1px solid var(--hairline-on-light);
  border-radius: 0;
  overflow: hidden;
  transition: box-shadow 0.2s;
}
.feature-card-light:hover { box-shadow: 0 4px 8px rgba(0,0,0,0.1); }
.feature-card-light .feature-card-body { padding: var(--sp-md); }
.feature-card-light .feature-card-title { color: var(--body-on-light); }
.feature-card-light .feature-card-excerpt { color: #444; }
.feature-card-light .feature-card-meta { color: #888; }

/* ARTICLE PAGE */
.article-hero {
  width: 100%;
  height: 480px;
  object-fit: cover;
  object-position: center;
  display: block;
}
.article-header {
  background: var(--canvas);
  padding: var(--sp-xxl) 0 var(--sp-lg);
  border-bottom: 1px solid var(--hairline);
}
.article-header .badge { margin-bottom: var(--sp-sm); }
.article-h1 {
  font-size: 56px;
  font-weight: 500;
  letter-spacing: -1.12px;
  line-height: 1.1;
  color: var(--ink);
  max-width: 800px;
  margin-bottom: var(--sp-sm);
}
.article-meta {
  font-size: 13px;
  color: var(--muted);
  display: flex;
  gap: var(--sp-md);
}
.article-body {
  background: var(--canvas-light);
  padding: var(--sp-xxl) 0;
}
.article-content {
  max-width: 760px;
}
.article-content h2 {
  font-size: 26px;
  font-weight: 500;
  letter-spacing: 0.195px;
  color: var(--body-on-light);
  margin: var(--sp-xxl) 0 var(--sp-sm);
  line-height: 1.5;
}
.article-content h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--body-on-light);
  margin: var(--sp-lg) 0 var(--sp-xs);
  line-height: 1.2;
}
.article-content p {
  font-size: 15px;
  color: #333;
  line-height: 1.7;
  margin-bottom: var(--sp-sm);
}
.article-content ul, .article-content ol {
  padding-left: var(--sp-md);
  margin-bottom: var(--sp-sm);
}
.article-content li {
  font-size: 15px;
  color: #333;
  line-height: 1.7;
  margin-bottom: var(--sp-xxs);
}
.article-content a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.article-content figure {
  margin: var(--sp-xxl) 0;
}
.article-content figure img {
  width: 100%;
  height: 400px;
  object-fit: cover;
}
.article-content figcaption {
  font-size: 12px;
  color: #888;
  margin-top: var(--sp-xs);
  line-height: 1.4;
}
.article-sidebar {
  position: sticky;
  top: 80px;
}
.article-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: var(--sp-xxl);
  align-items: start;
}
.sidebar-box {
  background: var(--surface-soft-light);
  border: 1px solid var(--hairline-on-light);
  padding: var(--sp-sm);
  margin-bottom: var(--sp-sm);
}
.sidebar-title {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.65px;
  color: var(--body-on-light);
  margin-bottom: var(--sp-sm);
  padding-bottom: var(--sp-xs);
  border-bottom: 1px solid var(--hairline-on-light);
}
.sidebar-list { list-style: none; }
.sidebar-list li { margin-bottom: var(--sp-xs); }
.sidebar-list a {
  font-size: 13px;
  color: #444;
  line-height: 1.4;
}
.sidebar-list a:hover { color: var(--primary); }

/* SPEC BAND */
.spec-band {
  background: var(--canvas-elevated);
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  padding: var(--sp-xxl) 0;
}
.spec-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-md);
  text-align: center;
}
.spec-value {
  font-size: 56px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -1.12px;
  line-height: 1;
}
.spec-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.1px;
  color: var(--body);
  margin-top: var(--sp-xxs);
}

/* FORM */
.contact-form {
  background: var(--canvas-elevated);
  padding: var(--sp-xxl) 0;
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-sm);
  margin-bottom: var(--sp-sm);
}
.form-field { display: flex; flex-direction: column; gap: var(--sp-xxs); }
.form-field label {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.65px;
  color: var(--body);
}
.form-field input, .form-field textarea {
  background: var(--canvas);
  border: 1px solid var(--hairline);
  border-radius: 4px;
  color: var(--ink);
  font-family: var(--font);
  font-size: 14px;
  padding: 14px 16px;
  height: 48px;
  outline: none;
  transition: border-color 0.15s;
}
.form-field textarea { height: auto; resize: vertical; min-height: 120px; }
.form-field input:focus, .form-field textarea:focus { border-color: var(--primary); }
.form-full { grid-column: 1 / -1; }
.form-note { font-size: 12px; color: var(--muted); margin-top: var(--sp-xxs); }

/* FOOTER */
.site-footer {
  background: var(--canvas);
  border-top: 1px solid var(--hairline);
  padding: var(--sp-xl) 0 var(--sp-md);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: var(--sp-md);
  margin-bottom: var(--sp-xl);
}
.footer-brand-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--sp-sm);
}
.footer-brand-name span { color: var(--primary); }
.footer-desc {
  font-size: 13px;
  color: var(--body);
  line-height: 1.6;
  max-width: 280px;
  margin-bottom: var(--sp-sm);
}
.footer-contact {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.8;
}
.footer-col-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.1px;
  color: var(--ink);
  margin-bottom: var(--sp-sm);
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: var(--sp-xxs); }
.footer-col a {
  font-size: 13px;
  color: var(--body);
  transition: color 0.15s;
}
.footer-col a:hover { color: var(--ink); }
.footer-bottom {
  border-top: 1px solid var(--hairline);
  padding-top: var(--sp-sm);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-copy { font-size: 12px; color: var(--muted); }

/* COOKIE BANNER */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--canvas-elevated);
  border-top: 1px solid var(--hairline);
  padding: var(--sp-sm) var(--sp-md);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-md);
}
.cookie-text { font-size: 13px; color: var(--body); max-width: 720px; }
.cookie-text a { color: var(--primary); text-decoration: underline; }
.cookie-actions { display: flex; gap: var(--sp-xs); flex-shrink: 0; }
.btn-cookie-accept {
  background: var(--primary);
  color: var(--on-primary);
  border: none;
  padding: 10px 24px;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.1px;
  cursor: pointer;
  border-radius: 0;
}
.btn-cookie-reject {
  background: transparent;
  color: var(--body);
  border: 1px solid var(--hairline);
  padding: 10px 24px;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.1px;
  cursor: pointer;
  border-radius: 0;
}

/* PAGES (about, privacy, terms) */
.page-header {
  background: var(--canvas);
  padding: var(--sp-xxl) 0 var(--sp-lg);
  border-bottom: 1px solid var(--hairline);
}
.page-h1 {
  font-size: 56px;
  font-weight: 500;
  letter-spacing: -1.12px;
  line-height: 1.1;
  color: var(--ink);
  margin-bottom: var(--sp-xs);
}
.page-sub { font-size: 14px; color: var(--body); }
.page-body {
  background: var(--canvas-light);
  padding: var(--sp-xxl) 0;
}
.page-content { max-width: 760px; }
.page-content h2 {
  font-size: 26px;
  font-weight: 500;
  color: var(--body-on-light);
  margin: var(--sp-xxl) 0 var(--sp-sm);
  line-height: 1.5;
}
.page-content h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--body-on-light);
  margin: var(--sp-lg) 0 var(--sp-xs);
}
.page-content p {
  font-size: 15px;
  color: #333;
  line-height: 1.7;
  margin-bottom: var(--sp-sm);
}
.page-content ul { padding-left: var(--sp-md); margin-bottom: var(--sp-sm); }
.page-content li { font-size: 15px; color: #333; line-height: 1.7; margin-bottom: var(--sp-xxs); }
.page-content a { color: var(--primary); text-decoration: underline; }

/* BREADCRUMB */
.breadcrumb {
  background: var(--canvas);
  padding: var(--sp-xs) 0;
  border-bottom: 1px solid var(--hairline);
}
.breadcrumb ol { display: flex; gap: var(--sp-xxs); list-style: none; align-items: center; font-size: 12px; color: var(--muted); }
.breadcrumb ol li + li::before { content: '/'; margin-right: var(--sp-xxs); }
.breadcrumb a { color: var(--body); }
.breadcrumb a:hover { color: var(--ink); }

/* DISCLAIMER */
.disclaimer {
  background: var(--canvas-elevated);
  border-left: 3px solid var(--primary);
  padding: var(--sp-sm);
  font-size: 13px;
  color: var(--muted);
  margin: var(--sp-xxl) 0 0;
}

/* RESPONSIVE */
@media (max-width: 1024px) {
  .hero-h1 { font-size: 56px; }
  .card-grid-3 { grid-template-columns: repeat(2, 1fr); }
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { position: static; }
  .spec-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--canvas);
    padding: var(--sp-sm) var(--sp-md);
    border-bottom: 1px solid var(--hairline);
    gap: var(--sp-sm);
  }
  .hero-h1 { font-size: 36px; letter-spacing: -0.5px; }
  .hero-band { height: 55vh; }
  .hero-content { bottom: var(--sp-lg); }
  .section-title { font-size: 26px; }
  .article-h1, .page-h1 { font-size: 32px; letter-spacing: -0.3px; }
  .card-grid-3, .card-grid-2 { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .cookie-banner { flex-direction: column; align-items: flex-start; }
  .spec-grid { grid-template-columns: repeat(2, 1fr); }
  .spec-value { font-size: 40px; }
}
@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: var(--sp-xs); text-align: center; }
  .article-meta { flex-direction: column; gap: var(--sp-xxs); }
}