/*
 * GitHub Updater — documentation site
 * Built on the Terminal Workbench design tokens (tokens.css).
 */

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--twb-font-ui);
  font-size: 15px;
  line-height: var(--twb-line-height);
  color: var(--twb-text-normal);
  background: var(--twb-bg-0);
}

::selection { background: var(--twb-selection); }

code {
  font-family: var(--twb-font-mono);
  font-size: 0.92em;
  background: var(--twb-bg-2);
  border: var(--twb-border-width) solid var(--twb-border);
  border-radius: var(--twb-radius-s);
  padding: 0.08em 0.35em;
  color: var(--twb-text-soft);
}

a { color: var(--twb-accent-alt); text-decoration: none; }
a:hover { text-decoration: underline; }

/* The "terminal manifest" label idiom */
.manifest {
  font-family: var(--twb-font-mono);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--twb-text-muted);
}

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* ==================== NAV ==================== */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--twb-bg-1);
  border-bottom: var(--twb-border-width) solid var(--twb-border);
}

.nav-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: var(--twb-font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--twb-text-normal);
}
.nav-logo:hover { text-decoration: none; color: var(--twb-accent); }

.nav-links { display: flex; align-items: center; gap: 22px; }

.nav-links a.manifest { color: var(--twb-text-muted); transition: color var(--twb-transition); }
.nav-links a.manifest:hover { color: var(--twb-accent); text-decoration: none; }

.nav-github { display: flex; color: var(--twb-text-muted); transition: color var(--twb-transition); }
.nav-github:hover { color: var(--twb-text-normal); }
.nav-github svg { width: 20px; height: 20px; }

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  background: transparent;
  border: var(--twb-border-width) solid var(--twb-border);
  border-radius: var(--twb-radius-s);
  color: var(--twb-text-muted);
  cursor: pointer;
  transition: color var(--twb-transition), border-color var(--twb-transition), background var(--twb-transition);
}
.theme-toggle:hover { color: var(--twb-text-normal); border-color: var(--twb-border-strong); background: var(--twb-bg-3); }
.theme-toggle svg { width: 15px; height: 15px; }
.theme-toggle .icon-sun { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .icon-sun { display: block; }
  :root:not([data-theme="light"]) .theme-toggle .icon-moon { display: none; }
}

/* ==================== HERO ==================== */
.hero {
  max-width: 1080px;
  margin: 0 auto;
  padding: 72px 24px 88px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 56px;
  align-items: center;
}

.hero-logo { width: 100%; max-width: 460px; height: auto; display: block; margin-bottom: 28px; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 10px;
  border: var(--twb-border-width) solid var(--twb-tag-border);
  border-radius: var(--twb-radius-s);
  background: var(--twb-tag-bg);
  color: var(--twb-accent);
  margin-bottom: 20px;
}
.hero-badge .dot {
  width: 6px;
  height: 6px;
  border-radius: var(--twb-radius-pill);
  background: var(--twb-accent);
}

.hero-title {
  font-size: 34px;
  font-weight: 760;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-bottom: 14px;
}
.hero-title em { font-style: normal; color: var(--twb-accent); }

.hero-subtitle { color: var(--twb-text-soft); margin-bottom: 28px; max-width: 46ch; }

.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border-radius: var(--twb-radius-m);
  font-size: 14px;
  font-weight: 650;
  border: var(--twb-border-width) solid transparent;
  transition: background var(--twb-transition), color var(--twb-transition), border-color var(--twb-transition);
}
.btn:hover { text-decoration: none; }
.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 { border-color: var(--twb-border-strong); color: var(--twb-text-normal); }
.btn--ghost:hover { background: var(--twb-bg-3); }

/* Hero mock — a settings pane rendered as a terminal window */
.mock {
  background: var(--twb-bg-1);
  border: var(--twb-border-width) solid var(--twb-border);
  border-radius: var(--twb-radius-l);
  overflow: hidden;
  font-family: var(--twb-font-mono);
}

.mock-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 14px;
  background: var(--twb-bg-2);
  border-bottom: var(--twb-border-width) solid var(--twb-border);
}
.mock-prompt { color: var(--twb-accent); font-weight: 700; font-size: 13px; }
.mock-bar-right { margin-left: auto; color: var(--twb-text-faint); }

.mock-body { padding: 6px 0; }

.mock-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 14px;
  border-bottom: var(--twb-border-width) solid var(--twb-border);
  transition: background var(--twb-transition);
}
.mock-row:last-child { border-bottom: none; }
.mock-row:hover { background: var(--twb-active-line); }
.mock-row--head { background: transparent; }
.mock-row--head:hover { background: transparent; }

.mock-repo { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.mock-name {
  font-size: 12.5px;
  color: var(--twb-text-normal);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.mock-status { font-size: 11px; }
.mock-status--update { color: var(--twb-warm); }
.mock-status--update i { font-style: normal; color: var(--twb-accent-alt); }
.mock-status--ok { color: var(--twb-accent); }
.mock-status--muted { color: var(--twb-text-faint); }

.mock-chip {
  flex-shrink: 0;
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 4px 10px;
  border-radius: var(--twb-radius-s);
  border: var(--twb-border-width) solid var(--twb-border-strong);
  color: var(--twb-text-muted);
}
.mock-chip--accent {
  background: var(--twb-tag-bg);
  border-color: var(--twb-tag-border);
  color: var(--twb-accent);
}

.mock-foot {
  padding: 8px 14px;
  background: var(--twb-bg-2);
  border-top: var(--twb-border-width) solid var(--twb-border);
}
.mock-foot .manifest { color: var(--twb-text-faint); }

/* ==================== SECTIONS ==================== */
section { padding: 72px 0; }

.features { background: var(--twb-bg-1); border-top: var(--twb-border-width) solid var(--twb-border); border-bottom: var(--twb-border-width) solid var(--twb-border); }

.section-head { max-width: 620px; margin-bottom: 44px; }
.kicker { color: var(--twb-accent); margin-bottom: 10px; }
.section-title { font-size: 26px; font-weight: 740; line-height: 1.25; margin-bottom: 12px; }
.section-desc { color: var(--twb-text-soft); }

/* Feature grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.feature-card {
  background: var(--twb-bg-2);
  border: var(--twb-border-width) solid var(--twb-border);
  border-radius: var(--twb-radius-m);
  padding: 22px;
  transition: border-color var(--twb-transition), background var(--twb-transition);
}
.feature-card:hover { border-color: var(--twb-border-strong); background: var(--twb-bg-3); }

.feature-icon {
  display: inline-flex;
  padding: 8px;
  border-radius: var(--twb-radius-s);
  background: var(--twb-tag-bg);
  border: var(--twb-border-width) solid var(--twb-tag-border);
  color: var(--twb-accent);
  margin-bottom: 14px;
}
.feature-icon svg { width: 20px; height: 20px; }

.feature-card h3 { font-size: 15.5px; font-weight: 700; margin-bottom: 6px; }
.feature-card p { font-size: 13.5px; color: var(--twb-text-soft); line-height: 1.6; }

/* Steps */
.steps { max-width: 640px; }

.step { display: flex; gap: 20px; }

.step-marker { display: flex; flex-direction: column; align-items: center; }
.step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  flex-shrink: 0;
  border-radius: var(--twb-radius-s);
  background: var(--twb-tag-bg);
  border: var(--twb-border-width) solid var(--twb-tag-border);
  color: var(--twb-accent);
  font-family: var(--twb-font-mono);
  font-size: 13px;
  font-weight: 700;
}
.step-line { width: 1px; flex: 1; background: var(--twb-border); margin: 6px 0; }

.step-body { padding-bottom: 32px; }
.step-body h3 { font-size: 16px; font-weight: 700; margin-bottom: 5px; }
.step-body p { color: var(--twb-text-soft); font-size: 14px; }

/* Install */
.install-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.install-card {
  background: var(--twb-bg-1);
  border: var(--twb-border-width) solid var(--twb-border);
  border-radius: var(--twb-radius-m);
  padding: 24px;
}
.install-card h3 { color: var(--twb-accent); margin-bottom: 12px; }
.install-card p, .install-card li { font-size: 14px; color: var(--twb-text-soft); }
.install-card ol { padding-left: 20px; display: grid; gap: 6px; }

.code-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 14px;
  padding: 10px 14px;
  background: var(--twb-bg-2);
  border: var(--twb-border-width) solid var(--twb-border);
  border-radius: var(--twb-radius-m);
}
.code-line code { background: none; border: none; padding: 0; font-size: 13px; color: var(--twb-text-normal); overflow-x: auto; }

.copy-btn {
  flex-shrink: 0;
  background: transparent;
  border: var(--twb-border-width) solid var(--twb-border-strong);
  border-radius: var(--twb-radius-s);
  padding: 4px 10px;
  cursor: pointer;
  transition: background var(--twb-transition), color var(--twb-transition), border-color var(--twb-transition);
}
.copy-btn:hover { background: var(--twb-bg-3); color: var(--twb-text-normal); }
.copy-btn.copied { background: var(--twb-accent); border-color: var(--twb-accent); color: var(--twb-text-on-accent); }

/* ==================== FOOTER ==================== */
.footer {
  border-top: var(--twb-border-width) solid var(--twb-border);
  background: var(--twb-bg-1);
  padding: 20px 0;
}
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer-links { display: flex; gap: 18px; }
.footer .manifest { color: var(--twb-text-faint); }
.footer a.manifest:hover { color: var(--twb-accent); text-decoration: none; }

/* ==================== REVEAL ==================== */
[data-reveal] { opacity: 0; transform: translateY(10px); transition: opacity 400ms ease, transform 400ms ease; }
[data-reveal].revealed { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
  [data-reveal] { opacity: 1; transform: none; }
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 880px) {
  .hero { grid-template-columns: 1fr; padding-top: 48px; padding-bottom: 56px; gap: 40px; }
  .hero-logo { max-width: 420px; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .install-grid { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .feature-grid { grid-template-columns: 1fr; }
  .nav-links a.manifest { display: none; }
  .hero-title { font-size: 28px; }
  .mock-bar-right { display: none; }
}