/* このパスワードは使えません — 見た目
 *   骨格はルート AGENTS.md のとおり。普通にスクロールするページで、fixed は使わない
 */

[hidden] { display: none !important; }

:root {
  --bg: #f7f4ee;
  --ink: #26231f;
  --sub: #7a7268;
  --box: #fffdf9;
  --edge: #cfc6b8;
  --ng-bg: #fbe9e6;
  --ng-edge: #e2a197;
  --ng-head: #c4473a;
  --ok-bg: #e8f3e5;
  --ok-edge: #a3c99a;
  --ok-head: #3f8a3a;
  --hair: rgba(43, 38, 31, .16);
  --font: "Hiragino Sans", "Yu Gothic UI", "Meiryo", sans-serif;
  --serif: "Shippori Mincho", "Yu Mincho", "Hiragino Mincho ProN", serif;
  color-scheme: light;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  line-height: 1.7;
}

#app { padding: 0 16px 40px; }

/* ── ヘッダ ───────────────────────────────────── */
#site-header {
  max-width: 1200px;
  margin: 0 auto;
  padding: 12px 0;
  display: flex;
  align-items: center;
  gap: 14px;
  border-bottom: 1px solid var(--hair);
}
.apps-link {
  color: var(--sub);
  text-decoration: none;
  font-size: 13px;
  border: 1px solid var(--hair);
  border-radius: 999px;
  padding: 3px 10px;
  white-space: nowrap;
}
.apps-link:hover { color: var(--ink); border-color: rgba(43, 38, 31, .35); }
.header-logo {
  margin: 0;
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: baseline;
  gap: 10px;
  white-space: nowrap;
  overflow: hidden;
}
.header-logo a {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  color: inherit;
  text-decoration: none;
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(17px, 5vw, 22px);
  letter-spacing: .04em;
}
.header-sub { font-size: 12px; color: var(--sub); overflow: hidden; text-overflow: ellipsis; }

#game,
#guide-section {
  max-width: 640px;
  margin: 0 auto;
}

.ask {
  margin: 36px 0 8px;
  font-size: .95rem;
}

.box {
  position: relative;
  display: block;
  background: var(--box);
  border: 2px solid var(--edge);
  border-radius: 10px;
  padding: 12px 40px 12px 14px;
}

#confirm .box { padding-top: 22px; }

.box:focus-within { border-color: #8f8577; }

.box-label {
  position: absolute;
  top: 4px;
  left: 14px;
  font-size: .75rem;
  color: var(--sub);
}

.box textarea {
  display: block;
  width: 100%;
  border: 0;
  outline: 0;
  resize: vertical;
  background: transparent;
  color: var(--ink);
  font: 500 1.2rem/1.5 var(--font);
  word-break: break-all;
}

.pw {
  min-height: 1.6em;
  outline: 0;
  font-size: 28px;
  line-height: 1.35;
  word-break: break-all;
  white-space: pre-wrap;
}

.pw:empty::before {
  content: "ここに入力";
  color: #b9b0a3;
}

.pw .b { font-weight: 800; }
.pw .i { font-style: italic; }
.pw .f-gothic { font-family: var(--font); }
.pw .f-mincho { font-family: "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", "MS Mincho", serif; }
.pw .f-sakasama {
  display: inline-block;
  transform: rotate(180deg);
  font-family: var(--font);
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  font-size: .85rem;
}

.toolbar button {
  min-width: 36px;
  height: 32px;
  border: 1px solid var(--edge);
  border-radius: 6px;
  background: var(--box);
  font: inherit;
  font-size: 1rem;
  cursor: pointer;
}

.toolbar select {
  height: 32px;
  margin-left: 4px;
  border: 1px solid var(--edge);
  border-radius: 6px;
  background: var(--box);
  font: inherit;
}

.tool-hint { color: var(--sub); font-size: .75rem; }

.over {
  margin-top: 20px;
  padding: 18px;
  border: 2px solid var(--ng-edge);
  border-radius: 10px;
  background: var(--ng-bg);
  text-align: center;
}

.over-msg { margin: 0 0 12px; font-size: 1.15rem; font-weight: 700; }

.over button {
  padding: 8px 20px;
  border: 1px solid var(--ng-head);
  border-radius: 8px;
  background: #fff;
  color: var(--ng-head);
  font: inherit;
  cursor: pointer;
}

.rule-media { padding: 6px 12px 4px; }

.media-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.mini {
  padding: 4px 12px;
  border: 1px solid var(--edge);
  border-radius: 6px;
  background: #fff;
  font: inherit;
  font-size: .85rem;
  cursor: pointer;
}

.mini:disabled { cursor: default; opacity: .7; }

.captcha {
  border-radius: 6px;
  max-width: 100%;
}

.swatch {
  width: 120px;
  height: 64px;
  border-radius: 6px;
  border: 1px solid rgba(0, 0, 0, .15);
}

.pref {
  display: block;
  width: 160px;
  height: 160px;
  fill: #3b4a5c;
}

.sponsors { display: flex; flex-wrap: wrap; gap: 8px; }

.sponsor {
  padding: 6px 12px;
  border-radius: 6px;
  color: #fff;
  font-weight: 800;
  font-size: .9rem;
}

.sponsor.s0 { background: #b5502e; }
.sponsor.s1 { background: #2f6f8f; }
.sponsor.s2 { background: #6b4c9a; }

.shogi { display: block; width: 100%; max-width: 330px; }
.shogi .pc { font: 700 20px "Yu Mincho", "Hiragino Mincho ProN", serif; text-anchor: middle; fill: #222; }
.shogi .pc.pro { fill: #b3261e; }
.shogi .lbl { font: 11px var(--font); text-anchor: middle; fill: #6d6457; }
.hand { margin: 4px 0 0; font-size: .9rem; }

.kana {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  gap: 4px;
  margin-bottom: 8px;
}

.kana button {
  height: 32px;
  padding: 0;
  border: 1px solid var(--edge);
  border-radius: 4px;
  background: #fff;
  font: inherit;
  cursor: pointer;
}

.kana button.on { background: var(--ng-head); border-color: var(--ng-head); color: #fff; }
.kana button:disabled { cursor: default; }

.len {
  position: absolute;
  right: 10px;
  bottom: 4px;
  font-size: .75rem;
  color: var(--sub);
}

#confirm,
#done { margin-top: 20px; }

.confirm-text { margin: 0 0 8px; font-weight: 700; }

#done {
  padding: 18px;
  border: 2px solid var(--ok-edge);
  border-radius: 10px;
  background: var(--ok-bg);
  text-align: center;
}

.done-title { margin: 0; font-size: 1.25rem; font-weight: 700; }
.done-time { margin: 4px 0 0; color: var(--sub); }
.done-pw { margin: 12px 0; font-size: 1.1rem; word-break: break-all; }

#again {
  padding: 8px 20px;
  border: 1px solid var(--ok-head);
  border-radius: 8px;
  background: #fff;
  color: var(--ok-head);
  font: inherit;
  cursor: pointer;
}

.rules {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
}

.rule {
  margin: 0 0 12px;
  border: 2px solid var(--ng-edge);
  border-radius: 10px;
  background: var(--ng-bg);
  overflow: hidden;
  box-shadow: 0 2px 6px rgba(43, 38, 31, .08);
}

.rule.ok {
  border-color: var(--ok-edge);
  background: var(--ok-bg);
}

.rule-head {
  padding: 4px 12px;
  background: var(--ng-edge);
  color: #fff;
  font-size: .85rem;
  font-weight: 700;
}

.rule.ok .rule-head { background: var(--ok-edge); }

.rule-text { margin: 0; padding: 10px 12px 2px; }
.rule-note { margin: 0; padding: 0 12px 10px; font-size: .85rem; color: var(--sub); }
.rule-note:empty { padding-bottom: 8px; }

.rule.new { animation: pop .35s ease-out; }

@keyframes pop {
  from { transform: translateY(-8px); opacity: 0; }
  to { transform: none; opacity: 1; }
}

#guide-section {
  margin-top: 48px;
  color: var(--sub);
  font-size: .9rem;
}

#guide-section h2 { font-size: 1rem; color: var(--ink); }
#guide-section h3 { margin: 20px 0 0; font-size: .9rem; color: var(--ink); }

/* ── 関連アプリ・広告・フッタ ───────────────────────── */
.related-apps { max-width: 1200px; margin: 40px auto 0; background: rgba(255, 253, 249, .7); border: 1px solid var(--hair); border-radius: 12px; padding: 16px; }
.related-apps-title { font-size: 15px; margin: 0 0 10px; }
.related-apps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
@media (max-width: 760px) { .related-apps-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; } }
.related-app-link {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--hair);
  border-radius: 10px;
  overflow: hidden;
  background: var(--box);
  color: var(--ink);
  text-decoration: none;
  transition: transform .15s, box-shadow .15s, border-color .15s;
}
.related-app-link:hover { transform: translateY(-2px); border-color: rgba(43, 38, 31, .3); box-shadow: 0 8px 20px rgba(43, 38, 31, .1); }
.ra-thumb { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; background: var(--edge); }
.ra-name { padding: 10px 12px 2px; font-size: 15px; font-weight: 700; }
.ra-desc { padding: 0 12px 12px; font-size: 13px; line-height: 1.5; color: var(--sub); }
@media (max-width: 440px) {
  .ra-name { padding: 8px 10px 2px; font-size: 13px; line-height: 1.4; }
  .ra-desc { padding: 0 10px 10px; font-size: 12px; }
}
#ad-section { max-width: 1200px; margin: 28px auto 0; }

#site-footer { max-width: 1200px; margin: 44px auto 0; padding-top: 16px; border-top: 1px solid var(--hair); color: var(--sub); }
.footer-links { display: flex; gap: 16px; flex-wrap: wrap; font-size: 13px; }
.footer-link { color: var(--sub); text-decoration: none; }
.footer-link:hover { color: var(--ink); }
.footer-copy { font-size: 12px; }

@media (max-width: 760px) {
  .header-sub { display: none; }
}

/* 名前が長いので、狭い画面では «このパスワードは／使えません» で折り返す */
@media (max-width: 440px) {
  .header-logo,
  .header-logo a { white-space: normal; line-height: 1.3; word-break: keep-all; }
}