@import url("./design-tokens.css");
@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;700&family=IBM+Plex+Mono:wght@400;500&display=swap");

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background:
    var(--gradient-backdrop-amber-glow),
    var(--gradient-backdrop-blue-glow),
    var(--gradient-backdrop);
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--color-ink);
  font-family: var(--font-sans);
  background-image:
    linear-gradient(var(--color-line-muted) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-line-muted) 1px, transparent 1px);
  background-size: var(--grid-size) var(--grid-size);
}

a {
  color: inherit;
  text-decoration: none;
}

.page-shell {
  width: min(var(--page-shell-width), calc(100% - 32px));
  margin: 0 auto;
  padding: 20px 0 40px;
}

.topbar,
.hero,
.feature-grid,
.callout,
.footer {
  position: relative;
  z-index: 1;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 48px;
  padding: 10px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-brand-mark);
  background: var(--gradient-brand-mark);
  box-shadow: var(--shadow-button);
}

.brand-text {
  font-size: 1.1rem;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.text-link {
  color: var(--color-muted);
  font-size: 0.95rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  font-weight: 600;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  color: var(--color-on-accent);
  background: var(--gradient-accent);
  box-shadow: var(--shadow-button);
}

.button-secondary,
.button-quiet {
  border-color: var(--color-line);
  background: var(--color-surface-quiet);
  backdrop-filter: blur(12px);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 36px;
  align-items: center;
  margin-bottom: 36px;
}

.hero-copy {
  padding: 26px 0 20px;
}

.eyebrow,
.window-label,
.mini-kicker,
.feature-index {
  margin: 0 0 14px;
  color: var(--color-accent-deep);
  font-family: var(--font-mono);
  font-size: 0.86rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
p,
dd,
dt,
li {
  margin: 0;
}

h1 {
  max-width: 10ch;
  font-size: clamp(3.4rem, 8vw, 6.3rem);
  line-height: 0.92;
  letter-spacing: -0.05em;
}

.hero-text {
  max-width: 58ch;
  margin-top: 20px;
  color: var(--color-muted);
  font-size: 1.08rem;
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.hero-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 28px;
}

.hero-facts div,
.feature-card,
.callout,
.card-window {
  border: 1px solid var(--color-line);
  background: var(--color-surface);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-panel);
}

.hero-facts div {
  padding: 16px 18px;
  border-radius: 20px;
}

dt {
  color: var(--color-muted);
  font-size: 0.85rem;
}

dd {
  margin-top: 8px;
  font-size: 1rem;
  font-weight: 600;
}

.hero-card {
  display: flex;
  justify-content: center;
}

.card-window {
  width: min(100%, 460px);
  padding: 22px;
  border-radius: var(--radius-xl);
}

.window-stack {
  display: grid;
  gap: 16px;
}

.mini-panel {
  padding: 22px;
  border: 1px solid var(--color-line-muted);
  border-radius: 22px;
  background: var(--color-surface-quiet);
}

.mini-panel-highlight {
  background: var(--gradient-surface-highlight);
}

.mini-panel h2 {
  font-size: 1.65rem;
  line-height: 1.05;
  margin-bottom: 14px;
}

.mini-panel p,
.feature-card p {
  color: var(--color-muted);
  line-height: 1.7;
}

.signal-list {
  margin: 0;
  padding-left: 18px;
  color: var(--color-muted);
  display: grid;
  gap: 10px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 24px;
}

.feature-card {
  padding: 24px;
  border-radius: 24px;
}

.feature-card h2 {
  margin-bottom: 12px;
  font-size: 1.55rem;
  line-height: 1.15;
}

.callout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 26px 28px;
  border-radius: 28px;
  margin-bottom: 22px;
}

.callout h2 {
  max-width: 14ch;
  font-size: clamp(1.9rem, 4vw, 3rem);
  line-height: 1.02;
}

.callout-links {
  display: grid;
  gap: 12px;
  min-width: min(100%, 320px);
}

.callout-links a {
  padding: 14px 16px;
  border: 1px solid var(--color-line);
  border-radius: 18px;
  background: var(--color-surface-quiet);
  font-weight: 600;
}

.footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 18px 4px 0;
  color: var(--color-muted);
}

.footer-links {
  display: flex;
  gap: 18px;
}

@media (max-width: 980px) {
  .hero,
  .callout {
    grid-template-columns: 1fr;
    display: grid;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .hero-facts {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: min(100% - 20px, 1180px);
    padding-top: 14px;
  }

  .topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .topbar-actions,
  .hero-actions,
  .footer {
    width: 100%;
  }

  .topbar-actions,
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .callout {
    padding: 22px;
  }
}