:root {
  color-scheme: dark;
  --ink: #0a0a0a;
  --ink-warm: #18150b;
  --surface: #171717;
  --surface-warm: #242113;
  --surface-raised: #202020;
  --paper: #f8f8f6;
  --amber: #ecb613;
  --amber-muted: #675a32;
  --teal: #30d1c7;
  --teal-soft: #1d433e;
  --danger: #ff6b6b;
  --muted: #9ba5b7;
  --muted-warm: #c9bb92;
  --border: rgba(255, 255, 255, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--ink);
  color: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  line-height: 1.5;
}

.alpha-banner {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: center;
  padding: 10px 16px;
  background: var(--amber);
  color: var(--ink);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
}

.hero {
  position: relative;
  min-height: 82svh;
  overflow: hidden;
  padding: 24px clamp(18px, 5vw, 72px) 68px;
  background:
    linear-gradient(rgba(10, 10, 10, 0.28), rgba(10, 10, 10, 0.72)),
    radial-gradient(circle at 22% 18%, rgba(236, 182, 19, 0.22), transparent 28%),
    radial-gradient(circle at 80% 36%, rgba(48, 209, 199, 0.18), transparent 30%),
    var(--ink);
}

.topbar,
.hero-copy,
.section-inner,
footer {
  width: min(1120px, 100%);
  margin: 0 auto;
}

.topbar {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--paper);
  font-size: 18px;
  font-weight: 900;
}

.brand img,
.alpha img {
  display: block;
}

.status-pill,
.hero-note {
  border: 1px solid rgba(236, 182, 19, 0.34);
  background: rgba(36, 33, 19, 0.78);
  color: var(--muted-warm);
}

.status-pill {
  padding: 7px 10px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 800;
}

.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 760px;
  margin-top: clamp(74px, 14vh, 132px);
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--muted-warm);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 2.4px;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  color: var(--paper);
  font-size: clamp(54px, 12vw, 132px);
  line-height: 0.88;
  font-weight: 900;
  letter-spacing: 0;
}

h2 {
  max-width: 760px;
  margin: 0;
  color: var(--paper);
  font-size: clamp(30px, 5vw, 58px);
  line-height: 1;
  font-weight: 900;
  letter-spacing: 0;
}

h3 {
  margin: 12px 0 8px;
  color: var(--paper);
  font-size: 20px;
  line-height: 1.1;
  font-weight: 900;
}

.lead {
  max-width: 720px;
  margin: 24px auto 0;
  color: rgba(248, 248, 246, 0.84);
  font-size: clamp(18px, 2vw, 23px);
}

.hero-note {
  display: inline-flex;
  max-width: 640px;
  margin-top: 28px;
  padding: 13px 15px;
  border-radius: 8px;
  font-weight: 700;
}

.intro-band,
.steps,
.principles,
.trust,
.alpha {
  padding: clamp(56px, 8vw, 104px) clamp(18px, 5vw, 72px);
}

.intro-band {
  background: var(--paper);
  color: var(--ink);
}

.intro-band h2,
.intro-band p {
  color: var(--ink);
}

.intro-band .eyebrow {
  color: var(--amber-muted);
}

.intro-band p,
.steps p,
.principles li,
.trust p,
.alpha p {
  max-width: 780px;
  font-size: 18px;
}

.steps {
  background: var(--ink-warm);
}

.step-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 34px;
}

.step-grid article {
  min-height: 240px;
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(32, 32, 32, 0.72);
}

.step-number {
  color: var(--amber);
  font-weight: 900;
}

.step-grid p,
.principles p,
.trust-grid p,
.alpha p {
  color: rgba(248, 248, 246, 0.72);
}

.principles {
  background: var(--surface);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(28px, 6vw, 72px);
  align-items: start;
}

.principles ul {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.principles li {
  padding: 16px 18px;
  border-left: 3px solid var(--teal);
  background: rgba(29, 67, 62, 0.28);
  color: rgba(248, 248, 246, 0.78);
}

.trust {
  background: var(--paper);
  color: var(--ink);
}

.trust h2,
.trust h3,
.trust p {
  color: var(--ink);
}

.trust .eyebrow {
  color: var(--amber-muted);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 34px;
}

.trust-grid article {
  min-height: 246px;
  padding: 22px;
  border: 1px solid rgba(10, 10, 10, 0.14);
  border-radius: 8px;
  background: #ffffff;
}

.trust-grid p {
  color: rgba(10, 10, 10, 0.72);
}

.alpha {
  background: var(--ink);
  text-align: center;
}

.alpha .section-inner {
  display: grid;
  justify-items: center;
}

.alpha img {
  margin-bottom: 18px;
}

.alpha p:not(.eyebrow) {
  margin-left: auto;
  margin-right: auto;
  color: rgba(248, 248, 246, 0.74);
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 24px clamp(18px, 5vw, 72px) 36px;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 900px) {
  .step-grid,
  .trust-grid,
  .split {
    grid-template-columns: 1fr;
  }

  .step-grid article,
  .trust-grid article {
    min-height: 0;
  }
}

@media (max-width: 620px) {
  .hero {
    min-height: 78svh;
    padding-bottom: 48px;
  }

  .topbar {
    align-items: flex-start;
  }

  .status-pill {
    max-width: 120px;
    text-align: center;
  }

  .hero-copy {
    margin-top: 56px;
  }

  footer {
    flex-direction: column;
  }
}