:root {
  --color-canvas: #f6f6f3;
  --color-surface: #ffffff;
  --color-subtle: #efefeb;
  --color-line: #e3e3de;
  --color-ink: #1b1b19;
  --color-ink-muted: #6a6a64;
  --color-accent: #2f5bea;
  --color-accent-strong: #2449c4;
  --color-accent-soft: #e9eefd;
  --color-on-accent: #ffffff;

  --radius-sm: 6px;
  --radius-md: 9px;
  --radius-lg: 14px;

  --font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  --shadow-card: 0 1px 2px rgb(0 0 0 / 0.05);
  --shadow-pop: 0 8px 30px rgb(0 0 0 / 0.12);

  --width-page: 72rem;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  color: var(--color-ink);
  background: var(--color-canvas);
  -webkit-text-size-adjust: 100%;
}

a {
  color: inherit;
}

.wrap {
  max-width: var(--width-page);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.topbar {
  border-bottom: 1px solid var(--color-line);
  background: var(--color-surface);
}

.topbar-inner {
  height: 3.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  font-weight: 600;
  font-size: 1.05rem;
  text-decoration: none;
  color: var(--color-ink);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.6rem 1.15rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-on-accent);
}

.btn-primary:hover {
  background: var(--color-accent-strong);
}

.btn-ghost {
  background: var(--color-surface);
  color: var(--color-ink);
  border-color: var(--color-line);
}

.btn-ghost:hover {
  background: var(--color-subtle);
}

.hero {
  padding: 5.5rem 0 4rem;
}

.hero-inner {
  max-width: 42rem;
}

.hero h1 {
  font-size: 2.6rem;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 1.1rem;
}

.lede {
  font-size: 1.1rem;
  line-height: 1.6;
  color: var(--color-ink-muted);
  margin: 0 0 2rem;
}

.cta-row {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.features {
  padding: 3rem 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 1.5rem;
}

.card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}

.card p {
  margin: 0;
  color: var(--color-ink-muted);
  line-height: 1.55;
}

.closing {
  padding: 4rem 0 6rem;
}

.closing-inner {
  text-align: center;
  background: var(--color-accent-soft);
  border-radius: var(--radius-lg);
  padding: 3rem 1.5rem;
}

.closing h2 {
  margin: 0 0 1.5rem;
  font-size: 1.6rem;
}

.footer {
  border-top: 1px solid var(--color-line);
}

.footer-inner {
  height: 3.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--color-ink-muted);
  font-size: 0.9rem;
}

.footer-inner a {
  text-decoration: none;
  color: var(--color-ink-muted);
}

.footer-inner a:hover {
  color: var(--color-ink);
}

@media (max-width: 640px) {
  .hero {
    padding: 3.5rem 0 2.5rem;
  }

  .hero h1 {
    font-size: 2rem;
  }

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