/*
 * Static pages (DESIGN.md §2–§6): landing, about, changelog. Shares tokens
 * with `play/style.css` via `tokens.css` so the two never drift.
 *
 * The rule that resolves every layout decision here: the terminal is the
 * page's substrate (text on black, monospace); anything showing the game is
 * a Comic Chat window pinned on top, with its own chrome and paper interior.
 * Never mixed inside one box (§1).
 */

@import url("/tokens.css");

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--page-bg);
  color: var(--console-fg);
  font-family: var(--mono);
  font-size: 16px;
  line-height: 1.45;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

a {
  color: var(--accent);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--console-bg);
  color: var(--accent);
  padding: 0.5rem 1rem;
  z-index: 10;
}

.skip-link:focus {
  left: 0.5rem;
  top: 0.5rem;
}

.wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------------- masthead (§3.1) ---------------- */

.masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 0;
  min-height: 3.5rem;
  padding: 8px 0;
  border-bottom: 1px solid var(--rule);
}

.masthead .wordmark {
  color: var(--console-fg);
  text-decoration: none;
  letter-spacing: 0.06em;
  font-size: 0.95rem;
  white-space: nowrap;
}

.masthead .wordmark:hover {
  color: var(--accent);
}

.masthead nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
}

.masthead nav a {
  text-decoration: none;
}

.masthead nav a:hover {
  text-decoration: underline;
}

section {
  padding: 64px 0;
  border-bottom: 1px solid var(--rule);
}

section:last-of-type {
  border-bottom: none;
}

h1,
h2,
h3 {
  font-weight: normal;
  margin: 0 0 16px;
}

/* ---------------- 1. introduction ---------------- */

#intro .wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 40px;
  align-items: center;
}

@media (max-width: 900px) {
  #intro .wrap {
    grid-template-columns: 1fr;
  }
}

#intro h1 {
  font-size: clamp(1.6rem, 4vw, 2.5rem);
  color: var(--console-fg);
  max-width: var(--measure);
}

#intro .deck {
  color: var(--console-dim);
  max-width: var(--measure);
  margin: 0 0 24px;
}

.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 24px;
  background: var(--amber);
  color: var(--ink);
  font-family: system-ui, "Segoe UI", Tahoma, sans-serif;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-decoration: none;
  border: 2px solid;
  border-color: #fff3 var(--comic-edge) var(--comic-edge) #fff3;
  border-radius: 0;
}

.cta:hover {
  filter: brightness(1.06);
}

.cta:active {
  border-color: var(--comic-edge) #fff3 #fff3 var(--comic-edge);
  transform: translate(1px, 1px);
}

.cta:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

.secondary-link {
  display: block;
  margin-top: 12px;
  color: var(--accent);
  text-decoration: none;
}

.secondary-link:hover {
  text-decoration: underline;
}

/* the pinned artifact: a Comic Chat window */

.comic-window {
  background: var(--comic-chrome);
  border: 1px solid var(--comic-edge);
  box-shadow: inset 1px 1px 0 #fff6;
}

.comic-window .titlebar {
  background: var(--titlebar);
  color: #fff;
  font-family: system-ui, "Segoe UI", Tahoma, sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  padding: 4px 8px;
}

.comic-window .cast-strip {
  background: var(--comic-chrome);
  border-bottom: 1px solid var(--comic-edge);
  padding: 4px 8px;
  font-family: system-ui, "Segoe UI", Tahoma, sans-serif;
  font-size: 0.75rem;
  color: var(--ink);
}

.comic-window .interior {
  background: var(--comic-paper);
  padding: 6px;
}

.comic-window img {
  display: block;
  width: 100%;
  height: auto;
}

/* ---------------- 2. features ---------------- */

#features .cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 720px) {
  #features .cards {
    grid-template-columns: 1fr;
  }
}

.card {
  background: var(--comic-paper);
  border: 1px solid var(--comic-edge);
  color: var(--ink);
}

.card .titlebar {
  background: var(--comic-chrome);
  border-bottom: 1px solid var(--comic-edge);
  font-family: system-ui, "Segoe UI", Tahoma, sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  padding: 6px 10px;
}

.card p {
  margin: 0;
  padding: 12px 16px 16px;
  font-family: var(--mono);
  font-size: 0.95rem;
}

/* ---------------- 3. background ---------------- */

#background .columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  max-width: var(--measure);
  margin: 0 auto 24px;
}

@media (max-width: 720px) {
  #background .columns {
    grid-template-columns: 1fr;
  }
}

#background .era-label {
  color: var(--accent);
  letter-spacing: 0.05em;
  font-size: 0.85rem;
  display: block;
  margin-bottom: 8px;
}

#background .thesis {
  max-width: var(--measure);
  margin: 0 auto;
  text-align: center;
  color: var(--console-fg);
}

#background .links {
  text-align: center;
  margin-top: 16px;
}

#background .links a {
  margin: 0 12px;
}

/* ---------------- 4. changelog ---------------- */

.changelog-list {
  max-width: var(--measure);
  margin: 0 auto 16px;
}

.changelog-row {
  display: grid;
  grid-template-columns: 6rem 8rem 1fr;
  gap: 16px;
  padding: 6px 0;
}

.changelog-row .version {
  color: var(--accent);
}

.changelog-row .date {
  color: var(--console-dim);
}

#changelog .view-full {
  display: block;
  max-width: var(--measure);
  margin: 0 auto;
  color: var(--accent);
  text-decoration: none;
}

#changelog .view-full:hover {
  text-decoration: underline;
}

#changelog .cta-repeat {
  display: block;
  width: max-content;
  margin: 24px auto 0;
}

/* ---------------- 5. footer ---------------- */

footer {
  padding: 40px 0 64px;
  color: var(--console-dim);
  font-size: 0.85rem;
}

footer p {
  margin: 0 0 4px;
}

footer a {
  color: var(--accent);
}

/* ---------------- about / changelog inner pages ---------------- */

.page-header {
  padding: 40px 0 24px;
  border-bottom: 1px solid var(--rule);
}

.page-header h1 {
  font-size: 1.8rem;
}

.prose {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 40px 0;
}

.prose h2 {
  color: var(--console-fg);
  font-size: 1.1rem;
  margin-top: 40px;
}

.prose p {
  color: var(--console-fg);
}

.prose a {
  color: var(--accent);
}