:root {
  color-scheme: light;
  --bg: #f6f4ef;
  --ink: #171717;
  --muted: #64605a;
  --line: #d8d2c8;
  --panel: #fffefa;
  --danger: #d73232;
  --safe: #177f5b;
  --accent: #1f6feb;
  --shadow: 0 18px 50px rgba(20, 18, 14, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
}

button,
input {
  font: inherit;
}

.app {
  width: min(920px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 28px 0;
}

.topbar,
.scoreboard,
.name-grid {
  display: grid;
  gap: 12px;
}

.topbar {
  grid-template-columns: 1fr auto;
  align-items: center;
  margin-bottom: 16px;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: clamp(2rem, 6vw, 4rem);
  line-height: 0.95;
}

h2 {
  font-size: clamp(1.65rem, 5vw, 3rem);
  line-height: 1.05;
}

.label {
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.muted {
  color: var(--muted);
  line-height: 1.7;
}

.scoreboard {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  margin-bottom: 16px;
  overflow: hidden;
}

.scoreboard-scroll {
  overflow-x: auto;
}

.scoreboard-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  table-layout: fixed;
}

.scoreboard-table th,
.scoreboard-table td {
  height: 44px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 6px 8px;
  text-align: center;
  font-weight: 900;
}

.scoreboard-table th:first-child {
  width: 148px;
  text-align: left;
}

.scoreboard-table th:last-child,
.scoreboard-table td:last-child {
  border-right: 0;
}

.scoreboard-table thead th {
  background: #f2eee6;
  color: var(--muted);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
}

.scoreboard-table tbody th {
  color: var(--ink);
  font-size: 0.95rem;
}

.scoreboard-table tbody tr:last-child th,
.scoreboard-table tbody tr:last-child td {
  border-bottom: 0;
}

.scoreboard-table tbody tr.is-active th {
  color: var(--accent);
}

.scoreboard-table tbody tr.is-active th::after {
  content: "座る";
  display: inline-block;
  margin-left: 8px;
  border: 1px solid currentColor;
  border-radius: 999px;
  padding: 1px 6px;
  font-size: 0.68rem;
  line-height: 1.4;
  vertical-align: middle;
}

.scoreboard-table td.is-score {
  color: var(--safe);
}

.scoreboard-table td.is-shock {
  color: var(--danger);
}

.scoreboard-table td.is-current {
  background: rgba(31, 111, 235, 0.1);
  box-shadow: inset 0 0 0 2px var(--accent);
}

.scoreboard-table .score-total {
  background: var(--ink);
  color: #fff;
}

.scoreboard-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px;
  background: #f2eee6;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 900;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.panel {
  min-height: 480px;
  padding: clamp(20px, 5vw, 42px);
  display: grid;
  align-content: center;
  gap: 22px;
}

.hidden {
  display: none;
}

.name-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
}

input {
  width: 100%;
  min-height: 52px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0 14px;
  background: #fff;
  color: var(--ink);
}

.number-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.number-button {
  min-height: 76px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  cursor: pointer;
  font-weight: 900;
  display: grid;
  place-items: center;
  gap: 2px;
  transition:
    transform 120ms ease,
    border-color 120ms ease,
    background 120ms ease;
}

.number-button span {
  font-size: clamp(1.35rem, 5vw, 2rem);
  line-height: 1;
}

.number-button small {
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 900;
}

.number-button.is-locked {
  background: #ece7dd;
  color: #8b8378;
  cursor: not-allowed;
}

.number-button.is-selected {
  border-color: var(--accent);
  background: rgba(31, 111, 235, 0.1);
  box-shadow: inset 0 0 0 2px var(--accent);
}

.number-button.is-locked small {
  color: #8b8378;
}

.number-button:active {
  transform: scale(0.98);
}

.number-button:not(:disabled):hover {
  border-color: var(--accent);
}

.result-grid .number-button {
  cursor: default;
}

.result-grid .number-button.is-guess {
  border-color: var(--accent);
  background: rgba(31, 111, 235, 0.12);
  box-shadow: inset 0 0 0 2px var(--accent);
}

.result-grid .number-button.is-trap {
  border-color: var(--danger);
  background: rgba(215, 50, 50, 0.12);
  box-shadow: inset 0 0 0 2px var(--danger);
}

.result-grid .number-button.is-hit {
  background: var(--danger);
  color: #fff;
}

.result-grid .number-button.is-hit small {
  color: #fff;
}

.primary-button,
.ghost-button {
  min-height: 48px;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 800;
}

.primary-button {
  width: min(100%, 320px);
  border: 0;
  background: var(--ink);
  color: #fff;
  padding: 0 22px;
}

.primary-button:disabled {
  background: #b8b2a8;
  cursor: not-allowed;
}

.ghost-button {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  padding: 0 14px;
}

.result-panel.is-shock {
  border-color: rgba(215, 50, 50, 0.5);
}

.result-panel.is-safe {
  border-color: rgba(23, 127, 91, 0.5);
}

@media (max-width: 640px) {
  .app {
    width: min(100vw - 20px, 920px);
    padding: 14px 0;
  }

  .topbar {
    grid-template-columns: 1fr;
  }

  .scoreboard {
    margin-bottom: 12px;
  }

  .scoreboard-table {
    min-width: 430px;
  }

  .scoreboard-table th,
  .scoreboard-table td {
    height: 38px;
    padding: 5px 6px;
  }

  .scoreboard-table th:first-child {
    width: 112px;
  }

  .scoreboard-table tbody tr.is-active th::after {
    margin-left: 4px;
    padding-inline: 4px;
    font-size: 0.62rem;
  }

  .name-grid {
    grid-template-columns: 1fr;
  }

  .number-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .panel {
    min-height: 440px;
  }
}