:root {
  --bg: #06080c;
  --surface: #0d1117;
  --surface-2: #121822;
  --line: rgba(255,255,255,0.11);
  --line-strong: rgba(255,255,255,0.18);
  --text: #f2f5f8;
  --muted: #9ea8b4;
  --muted-2: #788290;
  --accent: #d93f2f;
  --accent-soft: rgba(217, 63, 47, 0.14);
  --silver: #d8dce2;
  --max: 1320px;
  --radius: 24px;
  --shadow: 0 30px 90px rgba(0, 0, 0, 0.45);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(217,63,47,0.08), transparent 28%),
    linear-gradient(180deg, #05070a 0%, #0a0f15 40%, #05070a 100%);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a { color: inherit; text-decoration: none; }
p { margin: 0; line-height: 1.65; color: var(--muted); }
h1, h2, h3 { margin: 0; letter-spacing: -0.04em; line-height: 1.02; }
h1 { font-size: clamp(3.5rem, 7vw, 6.5rem); max-width: 11ch; }
h2 { font-size: clamp(2.3rem, 4vw, 4rem); max-width: 11ch; }
h3 { font-size: 1.28rem; }
label { display: block; }

.frame {
  position: fixed;
  inset: 14px;
  border: 1px solid rgba(255,255,255,0.06);
  pointer-events: none;
  z-index: 0;
}

.topbar,
.hero,
.paddock-band,
.system-section,
.join-section,
.footer {
  width: min(calc(100% - 56px), var(--max));
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.topbar {
  padding: 24px 0 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.brand-lockup { display: flex; align-items: center; gap: 14px; }
.brand-lockup strong { display: block; font-size: 1rem; }
.brand-lockup span:last-child { display: block; color: var(--muted-2); font-size: 0.84rem; letter-spacing: 0.04em; text-transform: uppercase; }
.brand-mark { width: 18px; height: 18px; background: linear-gradient(135deg, var(--silver), var(--accent)); transform: skew(-24deg); display: inline-block; }
nav { display: flex; gap: 26px; color: var(--muted); font-size: 0.95rem; }
.eyebrow { color: var(--silver); font-size: 0.78rem; letter-spacing: 0.22em; text-transform: uppercase; margin-bottom: 18px; }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(420px, 0.95fr);
  gap: 28px;
  padding: 38px 0 24px;
  align-items: stretch;
}
.hero-copy,
.race-sheet,
.paddock-band > div,
.system-card,
.workflow-grid article,
.membership-table,
.join-section {
  background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.015));
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.hero-copy {
  padding: 52px 48px 42px;
  border-radius: 34px 22px 34px 22px;
  overflow: hidden;
  position: relative;
}
.hero-copy::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(217,63,47,0.10), transparent 32%);
  pointer-events: none;
}
.lede { margin-top: 20px; max-width: 62ch; font-size: 1.08rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin: 34px 0; }
.button {
  min-height: 54px;
  padding: 0 22px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  border: 1px solid var(--line-strong);
}
.button-primary { background: var(--accent); border-color: var(--accent); color: white; }
.button-secondary { background: transparent; }
.hero-strip {
  display: grid;
  gap: 12px;
  padding-top: 22px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.hero-strip div { display: flex; flex-direction: column; gap: 5px; }
.hero-strip span { font-size: 0.72rem; letter-spacing: 0.16em; color: var(--muted-2); }
.hero-strip strong { font-size: 0.98rem; font-weight: 600; }

.race-sheet {
  border-radius: 18px 30px 18px 30px;
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.sheet-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--muted-2);
  text-transform: uppercase;
}
.sheet-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.sheet-grid.compact article {
  min-height: auto;
}
.sheet-grid article,
.trace-box {
  background: rgba(0,0,0,0.18);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 16px;
  padding: 16px;
}
.sheet-grid label,
.trace-caption span {
  display: block;
  margin-bottom: 12px;
  color: var(--muted-2);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.sheet-grid strong { display: block; margin-bottom: 0; font-size: 1.1rem; }
.sheet-grid p { font-size: 0.94rem; }
.trace-box svg { width: 100%; height: auto; display: block; border-radius: 12px; }
.trace-main { padding: 12px; }
.mini-traces {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.trace-caption { padding-top: 10px; }
.trace-caption p { max-width: 54ch; }

.paddock-band {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  padding: 6px 0 58px;
}
.paddock-band > div {
  padding: 20px 22px;
  border-radius: 12px;
}
.paddock-band span {
  color: var(--accent);
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 0.14em;
}
.paddock-band p { margin-top: 8px; color: var(--silver); }

.system-section { padding-bottom: 54px; }
.section-head { max-width: 780px; margin-bottom: 24px; }
.section-head p:last-child { margin-top: 16px; }
.narrow { max-width: 720px; }
.system-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.system-layout.compact .system-card { min-height: auto; }
.system-card {
  border-radius: 28px;
  padding: 24px;
  min-height: 320px;
}
.system-card.local { background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(125,136,148,0.05)); }
.system-card.cloud { background: linear-gradient(180deg, rgba(217,63,47,0.13), rgba(255,255,255,0.02)); border-color: rgba(217,63,47,0.28); }
.card-tag {
  display: inline-block;
  margin-bottom: 16px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255,255,255,0.05);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  color: var(--silver);
}
.system-card h3 { margin-bottom: 18px; max-width: 14ch; }
.system-card ul {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 12px;
  color: var(--muted);
  line-height: 1.55;
}

.join-section {
  border-radius: 26px;
  padding: 30px;
  margin-bottom: 34px;
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 26px;
}
.join-form {
  display: grid;
  gap: 14px;
}
.join-form label span {
  display: block;
  margin-bottom: 8px;
  color: var(--silver);
  font-size: 0.92rem;
}
.join-form input {
  width: 100%;
  min-height: 56px;
  border-radius: 14px;
  border: 1px solid var(--line-strong);
  background: rgba(0,0,0,0.2);
  color: var(--text);
  padding: 0 16px;
  font: inherit;
}
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.captcha-wrap {
  min-height: 68px;
  display: flex;
  align-items: center;
}
.join-form button {
  min-height: 58px;
  border: 0;
  border-radius: 14px;
  background: var(--silver);
  color: #0a0e13;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}
.helper,
.feedback { font-size: 0.95rem; }
.feedback { min-height: 24px; color: var(--silver); }
.footer {
  padding: 0 0 64px;
  color: var(--muted-2);
}

@media (max-width: 1180px) {
  .hero,
  .join-section,
  .system-layout,
  .paddock-band,
  .sheet-grid,
  .mini-traces {
    grid-template-columns: 1fr;
  }

  .hero { gap: 18px; }
}

@media (max-width: 820px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  nav { flex-wrap: wrap; gap: 14px; }
  .hero-copy,
  .race-sheet,
  .system-card,
  .workflow-grid article,
  .join-section { padding: 22px; }
  h1 { font-size: 2.8rem; }
  h2 { font-size: 2.1rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}