* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--twb-bg-0);
  color: var(--twb-text-normal);
  font-family: var(--twb-font-ui);
  line-height: var(--twb-line-height);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--twb-accent-alt); text-decoration: none; }
code { font-family: var(--twb-font-mono); font-size: 0.9em; color: var(--twb-text-soft);
  background: var(--twb-bg-2); border: 1px solid var(--twb-border); border-radius: var(--twb-radius-s); padding: 0.1em 0.4em; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.manifest { font-family: var(--twb-font-mono); font-size: 10.5px; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--twb-text-muted); }

/* Nav */
.nav { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--twb-bg-1) 82%, transparent);
  backdrop-filter: blur(8px); border-bottom: 1px solid transparent; transition: border-color var(--twb-transition); }
.nav--scrolled { border-bottom-color: var(--twb-border); }
.nav-inner { max-width: 1080px; margin: 0 auto; padding: 12px 24px; display: flex; align-items: center; justify-content: space-between; }
.nav-logo { display: flex; align-items: center; gap: 8px; color: var(--twb-text-normal); font-weight: 700; }
.nav-logo img { width: 24px; height: 24px; }
.nav-links { display: flex; align-items: center; gap: 22px; }
.nav-links a.manifest { color: var(--twb-text-muted); }
.nav-links a.manifest:hover { color: var(--twb-text-normal); }
.nav-github { color: var(--twb-text-muted); display: flex; }
.nav-github svg { width: 20px; height: 20px; }
.nav-github:hover { color: var(--twb-accent); }

/* Hero */
.hero { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 48px; align-items: center;
  max-width: 1080px; margin: 0 auto; padding: 72px 24px 56px; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; margin: 22px 0 18px;
  background: var(--twb-nav-active); border: 1px solid var(--twb-tag-border); color: var(--twb-text-soft);
  border-radius: var(--twb-radius-pill); padding: 5px 12px; }
.hero-badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--twb-accent); box-shadow: var(--twb-glow); }
.hero-title { font-size: 2.1rem; font-weight: 800; line-height: 1.2; letter-spacing: -0.02em; }
.hero-title em { color: var(--twb-accent); font-style: normal; }
.hero-sub { color: var(--twb-text-muted); font-size: 1.05rem; margin: 16px 0 26px; max-width: 40ch; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; gap: 8px; border-radius: var(--twb-radius-m);
  padding: 10px 16px; font-weight: 650; font-size: 0.95rem; border: 1px solid transparent; transition: all var(--twb-transition); }
.btn svg { width: 16px; height: 16px; }
.btn--primary { background: var(--twb-accent); color: var(--twb-text-on-accent); }
.btn--primary:hover { filter: brightness(1.08); }
.btn--ghost { background: transparent; border-color: var(--twb-border-strong); color: var(--twb-text-normal); }
.btn--ghost:hover { background: var(--twb-bg-2); }

/* Hero mock (TW editor panel showing the transform) */
.mock { background: var(--twb-bg-1); border: 1px solid var(--twb-border); border-radius: var(--twb-radius-l); overflow: hidden;
  box-shadow: var(--twb-shadow-pane); }
.mock-bar { display: flex; align-items: center; gap: 8px; background: var(--twb-bg-2);
  border-bottom: 1px solid var(--twb-border); padding: 10px 14px; }
.mock-bar .prompt { color: var(--twb-accent); font-family: var(--twb-font-mono); }
.mock-body { padding: 18px 16px; font-family: var(--twb-font-mono); font-size: 14px; line-height: var(--twb-line-height-code); }
.mock-line { white-space: pre; color: var(--twb-text-soft); }
.mock-line + .mock-line { margin-top: 4px; }
.mock-sep { color: var(--twb-text-faint); margin: 8px 0; }
.tok { border-radius: var(--twb-radius-s); padding: 0 3px; }
.tok--ok { color: var(--twb-accent); background: var(--twb-tag-bg); }
.tok--def { color: var(--twb-warm); background: color-mix(in srgb, var(--twb-warm) 13%, transparent); }
.tok--miss { color: var(--twb-red); background: color-mix(in srgb, var(--twb-red) 13%, transparent); }

/* Sections */
.section { padding: 56px 0; }
.kicker { margin-bottom: 10px; }
.section-title { font-size: 1.7rem; font-weight: 780; letter-spacing: -0.01em; color: var(--twb-text-normal); }
.section-desc { color: var(--twb-text-muted); margin-top: 10px; max-width: 60ch; }

/* Features */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 32px; }
.feature-card { background: var(--twb-bg-1); border: 1px solid var(--twb-border); border-radius: var(--twb-radius-m); padding: 20px; }
.feature-card:hover { border-color: var(--twb-border-strong); }
.feature-icon { color: var(--twb-accent); margin-bottom: 12px; }
.feature-icon svg { width: 22px; height: 22px; }
.feature-card h3 { font-size: 1.02rem; margin-bottom: 6px; color: var(--twb-text-normal); }
.feature-card p { color: var(--twb-text-muted); font-size: 0.92rem; }

/* Steps */
.steps { margin-top: 32px; display: flex; flex-direction: column; gap: 4px; }
.step { display: grid; grid-template-columns: 40px 1fr; gap: 16px; padding: 14px 0; }
.step-num { width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center;
  background: var(--twb-nav-active); border: 1px solid var(--twb-tag-border); color: var(--twb-accent);
  font-family: var(--twb-font-mono); font-weight: 700; }
.step h3 { color: var(--twb-text-normal); font-size: 1.02rem; margin-bottom: 4px; }
.step p { color: var(--twb-text-muted); font-size: 0.94rem; }

/* Install */
.install-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 32px; }
.install-card { position: relative; background: var(--twb-bg-1); border: 1px solid var(--twb-border);
  border-radius: var(--twb-radius-m); padding: 20px; }
.install-card--rec { border-color: var(--twb-tag-border); }
.install-tag { position: absolute; top: -10px; left: 16px; }
.install-card h3 { margin-bottom: 10px; color: var(--twb-text-normal); }
.install-card ol { margin-left: 18px; color: var(--twb-text-muted); font-size: 0.92rem; }
.install-card li { margin: 4px 0; }

/* Footer */
.footer { border-top: 1px solid var(--twb-border); margin-top: 40px; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; padding: 24px; color: var(--twb-text-muted); font-size: 0.9rem; }
.footer-inner img { width: 22px; height: 22px; vertical-align: middle; margin-right: 8px; }

/* Reveal */
[data-reveal] { opacity: 0; transform: translateY(12px); transition: opacity 0.5s ease, transform 0.5s ease; }
[data-reveal].revealed { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } [data-reveal] { opacity: 1; transform: none; transition: none; } }

@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; }
  .feature-grid, .install-grid { grid-template-columns: 1fr; }
  .nav-links a.manifest { display: none; }
}