:root {
  --accent: #7b274d;
  --accent2: #d9822e;
  --grad: linear-gradient(120deg, var(--accent), var(--accent2));
  --btn-c1: var(--accent);
  --btn-c2: var(--accent2);
  --btn-grad: linear-gradient(120deg, var(--btn-c1), var(--btn-c2));
  --bg: #f4f1ea;
  --text: #2b2b2b;
  --card-bg: #ffffff;
  --card-border: #e6dfe0;
  --muted: #6b6b66;
  --danger: #c0392b;
  --hero-grid: rgba(20, 20, 40, 0.05);
}
:root[data-theme="dark"] {
  --accent: #d36999;
  --accent2: #ffb066;
  /* ボタンの塗りは文字用のaccentよりトーンを落として、暗い背景で発光しすぎないようにする */
  --btn-c1: #7b274d;
  --btn-c2: #d9822e;
  --bg: #121214;
  --text: #ececee;
  --card-bg: #1c1c20;
  --card-border: #2c2c31;
  --muted: #9a9aa2;
  --danger: #ff7a70;
  --hero-grid: rgba(255, 255, 255, 0.06);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  font-family: "Hiragino Sans", "Yu Gothic", Meiryo, sans-serif;
  background-color: var(--bg);
  background-image:
    radial-gradient(circle, var(--hero-grid) 1px, transparent 1px),
    radial-gradient(900px circle at 15% -10%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 55%),
    radial-gradient(800px circle at 100% 10%, color-mix(in srgb, var(--accent2) 9%, transparent), transparent 55%);
  background-size: 22px 22px, auto, auto;
  background-attachment: fixed;
  color: var(--text);
}

.site-nav { width: 100%; padding: .6rem 1rem; font-size: .85rem; }
.site-nav a {
  display: inline-flex;
  align-items: center;
  color: var(--text);
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 999px;
  padding: .35rem .9rem;
  text-decoration: none;
  transition: border-color .15s ease, transform .15s ease;
}
.site-nav a:hover { border-color: var(--accent); transform: translateY(-1px); }

.site-header { padding: 1.2rem 1rem .4rem; text-align: center; }
.site-header h1 {
  margin: 0;
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.subtitle { margin: .3rem 0 0; color: var(--muted); font-size: .95rem; }

.ad-slot { width: 100%; max-width: 640px; min-height: 60px; margin: .8rem auto; border-radius: 6px; background: repeating-linear-gradient(45deg,#eee,#eee 10px,#e2e2e2 10px,#e2e2e2 20px); }

main { width: 100%; max-width: 520px; padding: 0 1rem 2rem; display: flex; flex-direction: column; align-items: center; }
.hidden { display: none !important; }

.setup-screen, .lobby-panel, .howto {
  width: 100%;
  padding: 1.5rem 1.2rem;
  margin-bottom: 1rem;
  border-radius: 12px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  box-shadow: 0 4px 16px rgba(0,0,0,.06);
  text-align: center;
}
.setup-screen h2, .lobby-panel h3, .howto h2 { margin-top: 0; font-size: 1.15rem; }

.name-input, .answer-input {
  display: block;
  width: 100%;
  max-width: 260px;
  margin: .5rem auto 1.2rem;
  padding: .6rem .7rem;
  border: 1px solid var(--card-border);
  border-radius: 6px;
  background: var(--card-bg);
  color: var(--text);
  font: inherit;
  text-align: center;
}

.mode-btn, .reset-btn {
  border: 0;
  border-radius: 8px;
  padding: .8rem 1rem;
  background: var(--btn-grad);
  color: #fff;
  font: inherit;
  font-weight: bold;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease;
}
.mode-btn:hover, .reset-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px color-mix(in srgb, var(--btn-c1) 35%, transparent);
}
.mode-btn:disabled {
  opacity: .5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}
.reset-btn { padding: .5rem 1rem; font-size: .9rem; }

.link-btn {
  border: 0;
  padding: .3rem;
  color: var(--accent);
  background: none;
  font: inherit;
  font-size: .85rem;
  text-decoration: underline;
  cursor: pointer;
}
.secondary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: .5rem 1rem;
  border: 1px solid var(--card-border);
  border-radius: 6px;
  background: var(--card-bg);
  color: var(--text);
  font: inherit;
  font-size: .9rem;
  font-weight: bold;
  text-decoration: none;
  cursor: pointer;
  transition: border-color .15s ease, transform .15s ease;
}
.secondary-btn:hover { border-color: var(--accent); transform: translateY(-1px); }
.online-choice { display: flex; flex-direction: column; align-items: center; gap: 1rem; margin-top: 1rem; }
.join-row { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: .5rem; }
.join-row input {
  width: 130px;
  padding: .6rem .7rem;
  border: 1px solid var(--card-border);
  border-radius: 6px;
  background: var(--card-bg);
  color: var(--text);
  font: inherit;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: .15em;
}

.host-wait { margin-bottom: 1rem; padding-bottom: 1rem; border-bottom: 1px solid var(--card-border); }
.room-code { margin: .5rem 0; color: var(--accent); font-size: 2rem; font-weight: bold; letter-spacing: .2em; }
.online-status { margin: .5rem 0 0; color: var(--muted); font-size: .9rem; }
.online-error { min-height: 1.2em; margin-top: .8rem; color: var(--danger); font-size: .9rem; }
.roster { display: flex; flex-direction: column; gap: .4rem; padding: 0; margin: .5rem 0 1rem; list-style: none; }
.roster li { padding: .5rem .8rem; border-radius: 6px; background: color-mix(in srgb, var(--accent) 8%, var(--card-bg)); font-weight: bold; }

.game-area { width: 100%; display: flex; flex-direction: column; align-items: center; }
.word-box, .vote-panel, .guess-box, .speaking-order-box {
  width: 100%;
  padding: 1rem 1.2rem;
  margin-bottom: .8rem;
  border-radius: 12px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  box-shadow: 0 4px 16px rgba(0,0,0,.06);
  text-align: center;
}
.word-label, .result-label { margin: 0; color: var(--muted); font-size: .8rem; }
.word { margin: .3rem 0 0; color: var(--accent); font-size: 2rem; font-weight: bold; word-break: break-all; }
.speaking-order { display: flex; flex-direction: column; gap: .4rem; margin: .5rem 0 0; padding: 0 0 0 1.6rem; list-style: decimal; text-align: left; }
.speaking-order li { padding: .4rem .6rem; border-radius: 6px; background: color-mix(in srgb, var(--accent) 8%, var(--card-bg)); font-weight: bold; }
.game-hint { width: 100%; margin: 0 0 1rem; color: var(--muted); font-size: .9rem; text-align: center; line-height: 1.6; }
.vote-panel h3, .guess-box h2 { margin-top: 0; font-size: 1rem; }
.candidates { display: flex; flex-wrap: wrap; justify-content: center; gap: .5rem; margin-bottom: .5rem; }
.candidates button {
  border: 0;
  border-radius: 8px;
  padding: .5rem .8rem;
  color: #fff;
  background: var(--btn-grad);
  font: inherit;
  font-weight: bold;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease;
}
.candidates button:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px color-mix(in srgb, var(--btn-c1) 35%, transparent);
}
.candidates button.selected { outline: 3px solid var(--text); }
.host-tally-box { margin-top: 1rem; padding-top: 1rem; border-top: 1px solid var(--card-border); }
.guess-box h2 { color: var(--accent); font-size: 1.2rem; }
.guess-box .answer-input { margin-bottom: .7rem; }

.overlay { position: fixed; inset: 0; z-index: 1000; display: flex; align-items: center; justify-content: center; background: rgba(0,0,0,.55); }
.overlay-card {
  width: 360px;
  max-width: 90%;
  max-height: 85vh;
  overflow-y: auto;
  position: relative;
  z-index: 1001;
  padding: 1.5rem 2rem;
  border-radius: 12px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  text-align: center;
}
.result-text { margin: 0 0 .8rem; font-size: 1.3rem; font-weight: bold; }
.result-word { margin: .3rem 0 0; color: var(--accent); font-size: 1.3rem; font-weight: bold; }
.word-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .6rem;
  margin: .8rem 0 1rem;
}
.word-compare-item {
  padding: .7rem .5rem;
  border-radius: 8px;
  border: 1px solid var(--card-border);
}
.word-compare-item.citizen { background: color-mix(in srgb, var(--accent) 10%, var(--card-bg)); border-color: color-mix(in srgb, var(--accent) 35%, var(--card-border)); }
.word-compare-item.wolf { background: color-mix(in srgb, var(--accent2) 14%, var(--card-bg)); border-color: color-mix(in srgb, var(--accent2) 40%, var(--card-border)); }
.result-counts { max-width: 260px; margin: 0 auto 1rem; padding-left: 1.4rem; text-align: left; }
.result-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: .6rem; margin-top: .4rem; }
.other-games { margin-top: 1.2rem; padding-top: 1rem; border-top: 1px solid var(--card-border); }
.other-games p { margin: 0 0 .5rem; color: var(--muted); font-weight: bold; }
.other-games ul { display: flex; flex-wrap: wrap; justify-content: center; gap: .5rem; margin: 0; padding: 0; list-style: none; }
.other-games a {
  display: inline-block;
  padding: .4rem .8rem;
  border-radius: 999px;
  color: var(--accent);
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  font-size: .85rem;
  text-decoration: none;
  transition: border-color .15s ease, transform .15s ease;
}
.other-games a:hover { border-color: var(--accent); transform: translateY(-1px); }

.howto ul { padding-left: 1.2rem; text-align: left; line-height: 1.6; }
.site-footer { margin-top: auto; padding: 1rem; color: var(--muted); font-size: .8rem; text-align: center; }
.site-footer p { margin: .2rem; }
.site-footer a { color: inherit; }

@media (max-width: 480px) {
  .site-header h1 { font-size: 1.4rem; }
  .overlay-card { padding: 1.2rem 1rem; }
  .word { font-size: 1.6rem; }
  .word-compare { grid-template-columns: 1fr; }
  .result-actions { flex-direction: column; }
}