:root {
  --canvas: #000000;
  --surface-soft: #0d0d0d;
  --surface-card: #1a1a1a;
  --surface-elevated: #262626;
  --hairline: #3c3c3c;
  --on-dark: #ffffff;
  --body: #bbbbbb;
  --body-strong: #e6e6e6;
  --muted: #7e7e7e;
  --stripe-blue-light: #0066b1;
  --stripe-blue-dark: #1c69d4;
  --stripe-red: #e22718;
  --success: #0fa336;
  --error: #e22718;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-weight: 300;
  color: var(--body);
  background: var(--canvas);
  margin: 0;
  line-height: 1.5;
}

h1, h2, h3 {
  color: var(--on-dark);
  font-weight: 700;
  text-transform: uppercase;
  margin: 0 0 20px;
  line-height: 1.15;
}
h1 { font-size: 48px; }
h2 { font-size: 34px; }
h3 { font-size: 24px; }
h4 { color: var(--on-dark); font-weight: 400; font-size: 18px; margin: 0 0 16px; text-transform: none; }

p { margin: 0 0 16px; font-weight: 300; }

a { color: var(--on-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 64px 0; }

.m-stripe {
  height: 4px;
  width: 100%;
  background: linear-gradient(to right, var(--stripe-blue-light) 0%, var(--stripe-blue-light) 33%, var(--stripe-blue-dark) 33%, var(--stripe-blue-dark) 66%, var(--stripe-red) 66%, var(--stripe-red) 100%);
}

.btn-primary {
  display: inline-block;
  background: transparent;
  color: var(--on-dark);
  padding: 16px 32px;
  border: 1px solid var(--on-dark);
  border-radius: 0;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  cursor: pointer;
}
.btn-primary:hover { background: var(--on-dark); color: #000; text-decoration: none; }

.btn-secondary {
  display: inline-block;
  background: var(--surface-card);
  color: var(--on-dark);
  padding: 16px 32px;
  border: none;
  border-radius: 0;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

.top-nav {
  background: var(--canvas);
  border-bottom: 1px solid var(--hairline);
  position: sticky;
  top: 0;
  z-index: 50;
}
.top-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  flex-wrap: wrap;
  gap: 12px;
}
.brand { font-size: 18px; font-weight: 700; color: var(--on-dark); text-transform: uppercase; letter-spacing: 1px; }
.nav-links { display: flex; gap: 28px; list-style: none; margin: 0; padding: 0; flex-wrap: wrap; }
.nav-links a { color: var(--body); font-size: 14px; font-weight: 400; letter-spacing: 0.5px; }
.nav-links a:hover { color: var(--on-dark); text-decoration: none; }

.card {
  background: var(--surface-card);
  border-radius: 0;
  padding: 24px;
}
.card h3 { text-transform: none; font-size: 20px; }
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
@media (max-width: 900px) { .card-grid { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 600px) { .card-grid { grid-template-columns: 1fr; } }

.spec-cell {
  background: var(--surface-soft);
  padding: 24px;
  text-align: center;
}
.spec-cell .value { font-size: 28px; font-weight: 700; color: var(--on-dark); }
.spec-cell .label { font-size: 12px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--muted); margin-top: 8px; }

.timeline {
  border-left: 2px solid var(--hairline);
  margin-left: 12px;
  padding-left: 32px;
}
.timeline-item { position: relative; padding-bottom: 32px; }
.timeline-item::before {
  content: "";
  position: absolute;
  left: -38px;
  top: 4px;
  width: 10px;
  height: 10px;
  background: var(--stripe-red);
}
.timeline-date { font-size: 12px; text-transform: uppercase; letter-spacing: 1.5px; color: var(--muted); margin-bottom: 4px; }

.breadcrumb { font-size: 13px; color: var(--muted); margin-bottom: 24px; }
.breadcrumb a { color: var(--muted); }
.breadcrumb span { margin: 0 6px; }

.toc { background: var(--surface-soft); padding: 24px; margin-bottom: 32px; border-left: 3px solid var(--stripe-red); }
.toc h4 { margin-bottom: 12px; font-size: 15px; }
.toc ul { margin: 0; padding-left: 20px; }
.toc li { margin-bottom: 6px; }

.related-content { margin-top: 48px; padding-top: 32px; border-top: 1px solid var(--hairline); }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 900px) { .related-grid { grid-template-columns: 1fr; } }
.related-grid a {
  display: block;
  background: var(--surface-card);
  padding: 16px;
  color: var(--on-dark);
  font-weight: 400;
  font-size: 15px;
}
.related-grid a:hover { background: var(--surface-elevated); text-decoration: none; }

img { max-width: 100%; height: auto; border-radius: 0; display: block; }

table { width: 100%; border-collapse: collapse; margin-bottom: 24px; }
th, td { border: 1px solid var(--hairline); padding: 12px; text-align: left; font-size: 14px; }
th { background: var(--surface-soft); color: var(--on-dark); font-weight: 700; }

details { border: 1px solid var(--hairline); padding: 16px 20px; margin-bottom: 12px; }
summary { font-weight: 700; color: var(--on-dark); cursor: pointer; }

footer { background: var(--canvas); color: var(--muted); padding: 64px 0 32px; font-size: 14px; border-top: 1px solid var(--hairline); }
.footer-columns { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; margin-bottom: 32px; }
@media (max-width: 900px) { .footer-columns { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 600px) { .footer-columns { grid-template-columns: 1fr; } }
.footer-columns h4 { font-size: 13px; text-transform: uppercase; letter-spacing: 1.5px; color: var(--on-dark); margin-bottom: 12px; font-weight: 700; }
.footer-columns ul { list-style: none; padding: 0; margin: 0; }
.footer-columns li { margin-bottom: 8px; }
.footer-columns a { color: var(--muted); }
.footer-legal { border-top: 1px solid var(--hairline); padding-top: 24px; font-size: 12px; color: var(--muted); }
.footer-legal p { margin-bottom: 8px; }

.cookie-banner {
  position: fixed;
  bottom: 24px; right: 24px;
  width: 340px;
  max-width: calc(100% - 48px);
  background: var(--canvas);
  border: 1px solid var(--hairline);
  color: var(--on-dark);
  padding: 24px;
  display: none;
  z-index: 100;
  flex-direction: column;
  gap: 16px;
}
.cookie-banner.visible { display: flex; }
.cookie-banner p { margin: 0; font-size: 14px; font-weight: 300; }
.cookie-actions { display: flex; gap: 12px; flex-direction: column; }
.cookie-actions button { border-radius: 0; padding: 12px 20px; font-weight: 700; font-size: 13px; letter-spacing: 1px; text-transform: uppercase; border: none; cursor: pointer; }
.cookie-accept { background: var(--on-dark); color: #000; }
.cookie-reject { background: transparent; color: var(--on-dark); border: 1px solid var(--on-dark) !important; }

form.contact-form { max-width: 520px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 14px; font-weight: 700; color: var(--on-dark); margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.5px; }
.form-group input {
  width: 100%;
  height: 48px;
  border: 1px solid var(--hairline);
  border-radius: 0;
  padding: 12px 16px;
  font-size: 14px;
  font-family: inherit;
  background: var(--surface-card);
  color: var(--on-dark);
}
.form-group input:focus { outline: none; border-color: var(--on-dark); }
.form-error { color: var(--error); font-size: 13px; margin-top: 4px; display: none; }
.form-error.visible { display: block; }
.form-success {
  background: var(--surface-soft);
  border-left: 3px solid var(--success);
  color: #6bd684;
  padding: 16px;
  margin-top: 16px;
  display: none;
}
.form-success.visible { display: block; }
.submit-btn[disabled] { opacity: 0.6; cursor: not-allowed; }

.disclaimer-box {
  background: var(--surface-soft);
  border-left: 3px solid var(--muted);
  padding: 16px 20px;
  font-size: 13px;
  color: var(--muted);
  margin: 24px 0;
}

.hero { padding: 64px 0; }
.hero p.lead { font-size: 18px; color: var(--body); max-width: 720px; font-weight: 300; }
.tag {
  display: inline-block;
  background: var(--surface-card);
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 4px 12px;
  margin-bottom: 12px;
}

.post-card { background: var(--surface-card); padding: 24px; }
.post-card .post-date { font-size: 12px; text-transform: uppercase; letter-spacing: 1.5px; color: var(--muted); margin-bottom: 8px; }
.post-card h3 { text-transform: none; font-size: 20px; }