/* いただきバーガー 公式サイト — 1 枚の CSS を ja / en で共有する */

@font-face {
  font-family: "PixelMplus";
  src: url("fonts/pixelmplus12-subset.woff2") format("woff2"),
       url("fonts/pixelmplus12-subset.woff") format("woff");
  font-display: swap;
}
@font-face { font-family: "FusionPixelSC"; src: url("fonts/fusion-sc-subset.woff2") format("woff2"); font-display: swap; }
@font-face { font-family: "FusionPixelTC"; src: url("fonts/fusion-tc-subset.woff2") format("woff2"); font-display: swap; }
@font-face { font-family: "FusionPixelKO"; src: url("fonts/fusion-ko-subset.woff2") format("woff2"); font-display: swap; }

:root {
  --bg: #1d2333;
  --bg2: #232a3d;
  --panel: #2a3249;
  --line: #3e4866;
  --ink: #f4ecda;
  --mute: #b8b2a4;
  --gold: #ffd870;
  --brass: #f0b45c;
  --brown: #a8601c;
  --dark: #3a2418;
  --wood: #5a3c22;
  --pixel: "PixelMplus", "Hiragino Sans", "Noto Sans JP", "Yu Gothic UI", Meiryo, sans-serif;
  --text: system-ui, -apple-system, "Hiragino Sans", "Noto Sans JP", "Yu Gothic UI", Meiryo, sans-serif;
}

/* 見出しのドットフォントは言語で替える (ゲームと同じ: 中韓は Fusion Pixel、ロシア語は普通の書体) */
html[lang="zh-Hans"] {
  --pixel: "FusionPixelSC", "Microsoft YaHei", "PingFang SC", "Noto Sans SC", sans-serif;
  --text: system-ui, -apple-system, "Microsoft YaHei", "PingFang SC", "Noto Sans SC", sans-serif;
}
html[lang="zh-Hant"] {
  --pixel: "FusionPixelTC", "Microsoft JhengHei", "PingFang TC", "Noto Sans TC", sans-serif;
  --text: system-ui, -apple-system, "Microsoft JhengHei", "PingFang TC", "Noto Sans TC", sans-serif;
}
html[lang="ko"] {
  --pixel: "FusionPixelKO", "Malgun Gothic", "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  --text: system-ui, -apple-system, "Malgun Gothic", "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
}
html[lang="ko"] { word-break: keep-all; }
html[lang="ru"] { --pixel: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
html[lang="ru"] h2, html[lang="ru"] h3, html[lang="ru"] .tagline, html[lang="ru"] .btn,
html[lang="ru"] .features b, html[lang="ru"] .brand { font-weight: 700; }

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--text);
  font-size: 16px;
  line-height: 1.85;
  -webkit-text-size-adjust: 100%;
}

img { max-width: 100%; height: auto; display: block; }
.px { image-rendering: pixelated; image-rendering: crisp-edges; }
a { color: var(--gold); }

.wrap { max-width: 1080px; margin: 0 auto; padding-inline: 20px; }

.sr {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}

/* ---------- ヘッダー ---------- */

.site-header {
  position: sticky; top: 0; z-index: 10;
  background: rgba(29, 35, 51, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 2px solid var(--dark);
}
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; min-height: 56px;
}
.brand {
  display: flex; align-items: center; gap: 8px;
  color: var(--ink); text-decoration: none;
  font-family: var(--pixel); font-size: 24px;
}
.brand img { width: 28px; height: 28px; }
.nav { display: flex; align-items: center; gap: 14px; font-family: var(--pixel); }
.nav a { text-decoration: none; }

/* 言語メニュー (JS なし、details で開閉) */
.langs { position: relative; font-family: var(--text); font-size: 14px; }
.langs summary {
  list-style: none; cursor: pointer; white-space: nowrap;
  color: var(--mute); padding: 3px 10px; border: 2px solid var(--line);
}
.langs summary::-webkit-details-marker { display: none; }
.langs summary::after { content: " ▾"; }
.langs summary:hover, .langs[open] summary { color: var(--ink); border-color: var(--mute); }
.langs ul {
  position: absolute; right: 0; top: calc(100% + 8px); z-index: 20;
  margin: 0; padding: 6px 0; list-style: none; min-width: 190px;
  background: var(--panel); border: 3px solid var(--dark); box-shadow: 0 6px 0 rgba(0,0,0,0.35);
}
.langs li a { display: block; padding: 5px 16px; color: var(--ink); text-decoration: none; line-height: 1.5; }
.langs li a:hover { background: var(--line); }
.langs li a[aria-current] { color: var(--gold); }

/* ---------- ボタン ---------- */

.btn {
  display: inline-block;
  font-family: var(--pixel);
  font-size: 24px; line-height: 1.2;
  padding: 12px 26px 10px;
  color: var(--dark);
  background: var(--gold);
  text-decoration: none;
  border: 3px solid var(--dark);
  box-shadow: inset 0 -5px 0 var(--brass), 0 5px 0 var(--dark);
  transition: transform 0.08s, box-shadow 0.08s;
}
.btn:hover { transform: translateY(2px); box-shadow: inset 0 -5px 0 var(--brass), 0 3px 0 var(--dark); }
.btn:active { transform: translateY(5px); box-shadow: inset 0 -3px 0 var(--brass), 0 0 0 var(--dark); }
.btn.small { font-size: 12px; padding: 7px 14px 6px; border-width: 2px; box-shadow: inset 0 -3px 0 var(--brass), 0 3px 0 var(--dark); }

/* ---------- ヒーロー ---------- */

.hero {
  position: relative;
  background: var(--bg2) url("assets/hero.png") center bottom / cover no-repeat;
  image-rendering: pixelated;
  border-bottom: 6px solid var(--dark);
}
.hero::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(29,35,51,0.35) 0%, rgba(29,35,51,0.15) 45%, rgba(29,35,51,0.8) 100%);
  pointer-events: none;
}
.hero .wrap {
  position: relative; z-index: 1;
  display: flex; flex-direction: column; align-items: center; text-align: center;
  padding-block: 48px 56px;
}
.hero h1 { margin: 0; }
.hero .logo { width: min(560px, 86vw); filter: drop-shadow(0 6px 0 rgba(0,0,0,0.35)); }
.tagline {
  margin: 18px 0 4px;
  font-family: var(--pixel); font-size: 36px; line-height: 1.4;
  color: var(--ink);
  text-shadow: 0 3px 0 var(--dark), 2px 0 0 var(--dark), -2px 0 0 var(--dark), 0 -2px 0 var(--dark);
}
.alt-name { margin: 0 0 24px; font-family: var(--pixel); font-size: 24px; line-height: 1.4; color: var(--gold); text-shadow: 0 2px 0 var(--dark); }
.release {
  margin: 22px 0 0; font-size: 15px; color: var(--ink);
  background: rgba(29,35,51,0.8); padding: 4px 14px; border: 2px solid var(--dark);
}

/* ---------- セクション共通 ---------- */

section { padding-block: 64px; }
section.alt { background: var(--bg2); border-block: 4px solid var(--dark); }

h2 {
  margin: 0 0 28px;
  font-family: var(--pixel); font-weight: normal;
  font-size: 36px; line-height: 1.35;
  color: var(--gold);
  text-shadow: 0 3px 0 var(--brown), 0 6px 0 var(--dark);
  text-align: center;
}
h3 { margin: 0 0 8px; font-family: var(--pixel); font-weight: normal; font-size: 24px; line-height: 1.4; color: var(--gold); }

.lead { max-width: 760px; margin: 0 auto; font-size: 17px; }
.lead p { margin: 0 0 1em; }
.lead strong { color: var(--gold); }

/* ---------- Steam ウィジェット ---------- */

.steam-widget { max-width: 646px; margin: 36px auto 0; }
.steam-widget iframe { display: block; width: 100%; height: 190px; border: 0; }
@media (max-width: 680px) { .steam-widget { display: none; } }

/* ---------- 遊びの流れ ---------- */

.steps { display: grid; gap: 40px; }
.step {
  display: grid; grid-template-columns: 1.35fr 1fr; gap: 28px; align-items: center;
}
.step:nth-child(even) .shot { order: 2; }
.shot { border: 4px solid var(--dark); box-shadow: 0 6px 0 rgba(0,0,0,0.35); background: var(--dark); }
.step .num {
  display: inline-block; margin-bottom: 6px;
  font-family: var(--pixel); font-size: 12px; color: var(--dark);
  background: var(--brass); padding: 0 10px; border: 2px solid var(--dark);
}
.step p { margin: 0; }
@media (max-width: 760px) {
  .step { grid-template-columns: 1fr; gap: 14px; }
  .step:nth-child(even) .shot { order: 0; }
}

/* ---------- 積み上げるもの ---------- */

.features {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 16px;
}
.features li {
  background: var(--panel); border: 3px solid var(--dark);
  box-shadow: inset 0 3px 0 var(--line); padding: 18px 18px 16px;
}
.features b { display: block; font-family: var(--pixel); font-weight: normal; font-size: 24px; color: var(--gold); margin-bottom: 4px; }
.features span { color: var(--mute); font-size: 15px; line-height: 1.7; }

.challenge { max-width: 760px; margin: 40px auto 0; text-align: center; }
.challenge p { margin: 0; }

/* ---------- スクリーンショット ---------- */

.gallery { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; }
.gallery a { display: block; }
.gallery figure { margin: 0; }
.gallery figcaption { margin-top: 6px; font-size: 14px; color: var(--mute); }

/* ---------- ゲーム情報 ---------- */

.facts {
  max-width: 760px; margin: 0 auto;
  display: grid; grid-template-columns: max-content 1fr;
  border: 3px solid var(--dark); background: var(--panel);
}
.facts dt, .facts dd { margin: 0; padding: 10px 16px; border-bottom: 2px solid var(--line); }
.facts dt { font-family: var(--pixel); color: var(--gold); background: rgba(0,0,0,0.12); }
.facts dt:last-of-type, .facts dd:last-of-type { border-bottom: 0; }
@media (max-width: 520px) {
  .facts { grid-template-columns: 1fr; }
  .facts dt { border-bottom: 0; padding-bottom: 0; background: none; }
}

.cta-bottom { text-align: center; padding-block: 56px 72px; }
.cta-bottom p { margin: 0 0 22px; font-family: var(--pixel); font-size: 24px; }

@media (max-width: 560px) {
  .brand-name { display: none; }  /* 長い名前は折れる。すぐ下にロゴがあるのでアイコンだけにする */
  h2, .tagline { font-size: 24px; }
  .btn, .brand { font-size: 18px; }
  .alt-name { font-size: 16px; }
}

/* ---------- フッター ---------- */

.site-footer {
  background: #151a27; border-top: 4px solid var(--dark);
  padding-block: 32px; font-size: 13px; color: var(--mute); line-height: 1.8;
}
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 18px; }
.site-footer p { margin: 0; }
.site-footer .maker { display: flex; align-items: center; gap: 8px; font-family: var(--pixel); font-size: 24px; color: var(--ink); }
.site-footer .maker img { width: 24px; height: 24px; }