/* Partly Heroic site — journal paper + brass + stained glass, after docs/UI_STYLE.md (game repo).
   Pixel rules: hard edges only, integer px steps, Cubic 11 at multiples of 11 px. */

@font-face {
  font-family: "Cubic 11";
  src: url("../fonts/Cubic_11.woff2") format("woff2");
  font-display: swap;
}

:root {
  --ink: #1c1430;
  --enamel-0: #0a1128; --enamel-1: #111d42; --enamel-2: #1a2f66; --enamel-3: #2f5da8; --enamel-4: #4a7fd0; --enamel-5: #8fb8f0;
  --brass-0: #3e240a; --brass-1: #6e4614; --brass-2: #a87426; --brass-3: #e8b64a; --brass-4: #f8dc8a; --brass-5: #fff4cc;
  --ivory-0: #9c8a60; --ivory-1: #d8c89c; --ivory-2: #f4ecd4;
  --crimson-1: #7e1a28; --crimson-2: #b3262e; --crimson-3: #e2584a;
  --vert-2: #4fa444; --violet: #b46ae0;
  --steel-2: #7d879e; --steel-3: #cdd4e2;
  --tap-0: #070b1c; --tap-1: #0d1430; --tap-2: #131c40;
  --px: 4px;
  --font: "Cubic 11", "PingFang TC", "Hiragino Sans", "Noto Sans CJK TC", system-ui, sans-serif;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 22px;
  line-height: 1.6;
  color: var(--ivory-2);
  background-color: var(--tap-1);
  /* heraldic diaper: 1px-step diamonds on the tapestry */
  background-image:
    linear-gradient(45deg, var(--tap-2) 25%, transparent 25%, transparent 75%, var(--tap-2) 75%),
    linear-gradient(45deg, var(--tap-2) 25%, transparent 25%, transparent 75%, var(--tap-2) 75%);
  background-size: 32px 32px;
  background-position: 0 0, 16px 16px;
  -webkit-font-smoothing: none;
  -moz-osx-font-smoothing: grayscale;
  font-smooth: never;
  text-rendering: optimizeSpeed;
  overflow-wrap: anywhere;
}
img { max-width: 100%; height: auto; display: block; }
img.px, .px { image-rendering: pixelated; image-rendering: crisp-edges; }
a { color: var(--brass-4); text-underline-offset: 4px; text-decoration-thickness: 2px; }
a:hover { color: var(--brass-5); }
a:focus-visible, summary:focus-visible, .btn:focus-visible { outline: 4px solid var(--brass-4); outline-offset: 2px; }

.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 16px; z-index: 9; background: var(--brass-3); color: var(--ink); padding: 8px 16px; }

.wrap { width: 100%; max-width: 1100px; margin: 0 auto; padding: 0 16px; }

/* ---------- stepped (pixel) corners ---------- */
.paper, .frame, .btn, .ribbon span, .rating {
  clip-path: polygon(
    0 8px, 4px 8px, 4px 4px, 8px 4px, 8px 0,
    calc(100% - 8px) 0, calc(100% - 8px) 4px, calc(100% - 4px) 4px, calc(100% - 4px) 8px, 100% 8px,
    100% calc(100% - 8px), calc(100% - 4px) calc(100% - 8px), calc(100% - 4px) calc(100% - 4px), calc(100% - 8px) calc(100% - 4px), calc(100% - 8px) 100%,
    8px 100%, 8px calc(100% - 4px), 4px calc(100% - 4px), 4px calc(100% - 8px), 0 calc(100% - 8px));
}

/* ---------- top bar: enamel plate on a brass rail ---------- */
.topbar {
  background: var(--enamel-2);
  border-bottom: 4px solid var(--brass-3);
  box-shadow: 0 4px 0 var(--ink), inset 0 -4px 0 var(--brass-1);
}
.topbar__in {
  max-width: 1100px; margin: 0 auto; padding: 12px 16px 16px;
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px 24px;
}
.brand { display: flex; align-items: center; gap: 12px; color: var(--brass-4); text-decoration: none; font-size: 22px; }
.brand img { width: 44px; height: 44px; border: 4px solid var(--ink); outline: 4px solid var(--brass-3); }
.nav, .langs { display: flex; flex-wrap: wrap; gap: 4px 16px; }
.nav { flex: 1 1 auto; }
.nav a, .langs a { color: var(--ivory-2); text-decoration: none; padding: 2px 4px; border-bottom: 4px solid transparent; }
.nav a:hover, .langs a:hover { color: var(--brass-4); }
.nav a[aria-current], .langs a[aria-current] { color: var(--brass-4); border-bottom-color: var(--brass-3); }
.langs { gap: 4px 8px; }
.langs a { border: 4px solid var(--enamel-1); background: var(--enamel-1); padding: 0 8px; }
.langs a[aria-current] { background: var(--brass-3); border-color: var(--brass-3); color: var(--ink); }

/* ---------- stained-glass strip ---------- */
.glass {
  display: grid; grid-template-columns: repeat(16, 1fr); gap: 4px;
  background: var(--ink); padding: 4px; height: 24px;
}
.glass i { display: block; }
.glass i:nth-child(6n+1) { background: var(--enamel-4); }
.glass i:nth-child(6n+2) { background: var(--brass-3); }
.glass i:nth-child(6n+3) { background: var(--crimson-2); }
.glass i:nth-child(6n+4) { background: var(--vert-2); }
.glass i:nth-child(6n+5) { background: var(--violet); }
.glass i:nth-child(6n+6) { background: var(--ivory-2); }
.glass i:nth-child(odd) { box-shadow: inset 4px 4px 0 rgba(255, 255, 255, .35); }

/* ---------- frames ---------- */
.frame {
  margin: 0;
  padding: 12px;
  background: var(--brass-3);
  box-shadow: inset 4px 4px 0 var(--brass-5), inset -4px -4px 0 var(--brass-1), inset 0 0 0 8px var(--brass-2);
  border: 4px solid var(--ink);
}
.frame img { border: 4px solid var(--ink); width: 100%; }
.frame--sm { padding: 8px; }

/* ---------- paper (journal card) ---------- */
.paper {
  background: var(--ivory-2);
  color: var(--ink);
  border: 4px solid var(--ink);
  box-shadow: inset 0 0 0 4px var(--brass-3), inset 0 0 0 8px var(--brass-1), inset 8px 8px 0 4px var(--ivory-1);
  padding: 28px 28px 24px;
}
.paper a { color: var(--enamel-3); }
.paper a:hover { color: var(--crimson-2); }

/* ---------- buttons ---------- */
.btn {
  display: inline-block;
  font: inherit; font-size: 22px; line-height: 1.4;
  padding: 12px 24px;
  min-height: 48px;
  color: var(--crimson-1);
  background: var(--brass-3);
  border: 4px solid var(--ink);
  box-shadow: inset 4px 4px 0 var(--brass-5), inset -4px -4px 0 var(--brass-1);
  text-decoration: none;
  text-align: center;
}
.btn:hover { background: var(--brass-4); color: var(--crimson-1); }
.btn:active { transform: translateY(2px); box-shadow: inset 4px 4px 0 var(--brass-1), inset -4px -4px 0 var(--brass-5); }
.btn--soon {
  color: var(--steel-3); background: var(--enamel-1);
  box-shadow: inset 4px 4px 0 var(--enamel-3), inset -4px -4px 0 var(--enamel-0);
  cursor: default;
}

/* ---------- hero ---------- */
.hero {
  display: grid; grid-template-columns: minmax(0, 1fr) 440px; gap: 40px; align-items: center;
  padding-top: 48px; padding-bottom: 32px;
}
.hero__kicker {
  display: inline-block; margin: 0 0 8px; padding: 0 12px;
  background: var(--crimson-2); color: var(--ivory-2);
  box-shadow: 0 4px 0 var(--crimson-1);
}
.hero__title {
  margin: 0; font-size: 88px; line-height: 1.15; font-weight: normal; letter-spacing: 4px;
  color: var(--brass-4);
  text-shadow: 4px 0 0 var(--ink), -4px 0 0 var(--ink), 0 4px 0 var(--ink), 0 -4px 0 var(--ink), 4px 8px 0 var(--crimson-1);
}
.hero__alt { margin: 8px 0 0; color: var(--enamel-5); }
.hero__tagline { margin: 16px 0 0; font-size: 33px; line-height: 1.4; color: var(--ivory-2); }
.hero__pitch { margin: 16px 0 0; color: var(--ivory-1); max-width: 34em; }
.hero__cta { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; margin-top: 28px; }
.hero__art { transform: rotate(0); }

/* Taiwan rating mark (保護級). TODO: replace with the official icon file (≥ 45×45 px) when available. */
.rating {
  display: inline-flex; flex-direction: column; align-items: center; justify-content: center;
  width: 88px; height: 72px; padding: 4px 0;
  background: #1f6fd1; color: #fff; border: 4px solid var(--ivory-2);
  line-height: 1.1; text-align: center;
}
.rating b { font-weight: normal; font-size: 22px; white-space: nowrap; }
.rating small { font-size: 22px; }

/* ---------- sections ---------- */
.block { padding-top: 24px; padding-bottom: 32px; }
.ribbon { margin: 0 0 24px; font-weight: normal; font-size: 33px; line-height: 1.3; text-align: center; }
.ribbon span {
  display: inline-block; padding: 8px 40px;
  background: var(--enamel-3); color: var(--brass-5);
  border: 4px solid var(--ink);
  box-shadow: inset 0 0 0 4px var(--brass-3), inset 0 -8px 0 4px var(--enamel-2);
}

.cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.card h3 {
  display: flex; align-items: center; gap: 12px;
  margin: 0 0 12px; font-size: 33px; line-height: 1.3; font-weight: normal; color: var(--crimson-1);
}
.card h3 img { width: 48px; height: 48px; flex: none; }
.card p { margin: 0; }

.heroes { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.hero-card h3 { margin: 16px 0 4px; font-weight: normal; font-size: 33px; color: var(--brass-4); }
.hero-card h3 small { margin-left: 12px; font-size: 22px; color: var(--enamel-5); }
.hero-card p { margin: 0; color: var(--ivory-1); }
.hero-card img { aspect-ratio: 4 / 5; object-fit: cover; }
.hero-card--alice .frame { background: var(--enamel-4); }
.hero-card--aoi .frame { background: var(--vert-2); }
.hero-card--luna .frame { background: var(--violet); }

.facts h2 { display: flex; align-items: center; gap: 12px; margin: 0 0 8px; font-weight: normal; font-size: 33px; color: var(--crimson-1); }
.facts h2 img { width: 48px; height: 48px; }
.facts ul { margin: 0; padding-left: 1.2em; }
.facts li::marker { content: "◆ "; color: var(--brass-2); }

/* ---------- documents (privacy / terms / support) ---------- */
.doc { max-width: 860px; margin: 40px auto 48px; }
.doc h1 { margin: 0 0 12px; font-weight: normal; font-size: 44px; line-height: 1.3; color: var(--crimson-1); }
.doc h2 {
  margin: 32px 0 8px; font-weight: normal; font-size: 33px; line-height: 1.3; color: var(--enamel-2);
  padding-bottom: 4px; border-bottom: 4px dotted var(--brass-2);
}
.doc p, .doc ul, .doc ol { margin: 8px 0; }
.doc ul, .doc ol { padding-left: 1.4em; }
.doc li { margin: 4px 0; }
.doc strong, .doc b { font-weight: normal; color: var(--crimson-1); background: linear-gradient(transparent 60%, var(--brass-4) 60%); }
.doc__meta { color: var(--ivory-0); margin: 0 0 16px !important; padding: 8px 12px; background: var(--ivory-1); color: var(--ink); }
.doc .note { color: #5a4a2c; }

.faq {
  margin: 12px 0; border: 4px solid var(--ink); background: #fbf6e6;
}
.faq summary {
  cursor: pointer; list-style: none; padding: 12px 16px 12px 48px; position: relative;
  background: var(--ivory-1); color: var(--ink);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before {
  content: "+"; position: absolute; left: 12px; top: 12px; width: 26px; height: 26px; line-height: 22px; text-align: center;
  background: var(--enamel-3); color: var(--brass-5); border: 2px solid var(--ink);
}
.faq[open] summary::before { content: "−"; background: var(--crimson-2); }
.faq[open] summary { border-bottom: 4px solid var(--ink); }
.faq > ol, .faq > ul, .faq > p { margin: 12px 16px; }
.contact { margin: 16px 0; }
.contact__mail { display: inline-block; margin-top: 12px; }

/* ---------- footer ---------- */
.foot { margin-top: 32px; background: var(--tap-0); border-top: 4px solid var(--brass-2); }
.foot__in { max-width: 1100px; margin: 0 auto; padding: 24px 16px 32px; color: var(--steel-3); }
.foot__links { display: flex; flex-wrap: wrap; gap: 8px 24px; margin-bottom: 12px; }
.foot__links a { color: var(--ivory-2); }
.foot__notice { margin: 8px 0; padding: 8px 12px; border: 4px solid var(--enamel-2); color: var(--ivory-1); }
.foot__small { margin: 8px 0; }
.foot__small a { color: var(--steel-3); }
.foot__copy { margin: 8px 0 0; color: var(--brass-4); }

/* ---------- responsive ---------- */
@media (max-width: 960px) {
  .hero { grid-template-columns: minmax(0, 1fr) 360px; gap: 24px; }
  .hero__title { font-size: 66px; }
}
@media (max-width: 760px) {
  body { font-size: 22px; }
  .hero { grid-template-columns: 1fr; padding-top: 24px; }
  .hero__art { order: -1; max-width: 400px; width: 100%; margin: 0 auto; }
  .hero__title { font-size: 55px; }
  .hero__tagline { font-size: 22px; }
  .cards { grid-template-columns: 1fr; }
  .heroes { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; }
  .card h3, .ribbon, .facts h2, .doc h2, .hero-card h3 { font-size: 22px; }
  .ribbon span { padding: 8px 24px; }
  .doc h1 { font-size: 33px; }
  .paper { padding: 20px 16px 16px; }
  .wrap { padding: 0 12px; }
  .faq > ol, .faq > ul, .faq > p { margin: 12px 8px; }
  .doc ul, .doc ol { padding-left: 1.2em; }
  .hero__title { text-shadow: 2px 0 0 var(--ink), -2px 0 0 var(--ink), 0 2px 0 var(--ink), 0 -2px 0 var(--ink), 2px 4px 0 var(--crimson-1); }
  .doc { margin: 24px auto 32px; }
  .topbar__in { gap: 8px 16px; }
  .nav { order: 3; flex-basis: 100%; gap: 4px 12px; }
  .langs { margin-left: auto; }
}
@media (max-width: 380px) {
  .hero__title { font-size: 44px; }
  .brand span { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .btn:active { transform: none; }
}