:root {
  --ink: #0f172a;
  --bg: #e8edf7;
  --paper: #eef2f8;
  --panel: #ffffff;
  --panel-soft: #f8fbff;
  --text: var(--ink);
  --muted: #334155;
  --accent: #1d4ed8;
  --accent-strong: #0c4a6e;
  --line: #9eb4d7;
  --navy: #0c3b7a;
  --navy-dark: #1e3a5f;
  --event-green: #2fbf71;
  --event-red: #ef4444;
  --event-yellow: #facc15;
  --event-pink: #f472b6;
  --event-cyan: #38bdf8;
  --event-orange: #f97316;
  --event-violet: #a78bfa;
  --btn-primary-a: #1d4ed8;
  --btn-primary-b: #0c4a6e;
  --btn-success-a: #059669;
  --btn-success-b: #166534;
  --mint: #6BDB76;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Space Grotesk, Avenir Next, Segoe UI, sans-serif;
  background:
    radial-gradient(circle at 12% 14%, rgba(254, 243, 199, 0.8) 0, transparent 26%),
    radial-gradient(circle at 82% 18%, rgba(219, 234, 254, 0.95) 0, transparent 32%),
    radial-gradient(circle at 72% 82%, rgba(220, 252, 231, 0.85) 0, transparent 28%),
    linear-gradient(180deg, #f5f7fc 0%, var(--bg) 100%);
  color: var(--text);
  min-height: 100vh;
}

.shell {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 20px 60px;
  position: relative;
}

.hero {
  padding: 16px 24px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 22px 54px rgba(97, 129, 182, 0.18);
  backdrop-filter: blur(8px);
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--navy);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.82rem;
  font-weight: 700;
}

.hero-brand {
  margin: 0 0 8px;
  color: var(--mint);
  font-size: clamp(1.2rem, 2.5vw, 1.8rem);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.4rem);
  color: var(--mint);
}

h2 {
  color: var(--navy);
}

.lead {
  color: var(--muted);
  line-height: 1.6;
  font-size: 0.95rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.button {
  display: inline-block;
  padding: 12px 16px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.98rem;
  line-height: 1.15;
  border: none;
  cursor: pointer;
  transition: transform 120ms ease, box-shadow 180ms ease, background-color 180ms ease, border-color 180ms ease, color 180ms ease;
}

.button.primary {
  background: linear-gradient(135deg, var(--btn-primary-a), var(--btn-primary-b));
  color: #f8fbff;
  box-shadow: 0 14px 28px rgba(29, 78, 216, 0.24);
}

.button.secondary {
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--line);
  color: var(--text);
  box-shadow: 0 10px 20px rgba(158, 180, 215, 0.12);
}

.button:focus-visible {
  outline: 3px solid rgba(29, 78, 216, 0.28);
  outline-offset: 2px;
}

.button.primary:not(:disabled):hover {
  box-shadow: 0 18px 30px rgba(29, 78, 216, 0.28);
  transform: translateY(-1px);
}

.button.secondary:not(:disabled):hover {
  background: rgba(219, 234, 254, 0.8);
  border-color: rgba(29, 78, 216, 0.32);
  color: var(--text);
  transform: translateY(-1px);
}

.button:not(:disabled):active {
  transform: translateY(0);
}

.button.danger {
  background: linear-gradient(135deg, #ef4444, #be123c);
  color: #fff;
}

.button.black-piece-button {
  background: linear-gradient(135deg, var(--navy-dark), var(--navy));
  color: #f8fafc;
  border: 1px solid rgba(12, 59, 122, 0.24);
}

.panel {
  margin-top: 22px;
  padding: 24px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid var(--line);
  box-shadow: 0 16px 36px rgba(123, 146, 187, 0.14);
}

.feature-grid,
.room-list {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.room-card {
  background: var(--panel-soft);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px;
  box-shadow: 0 10px 24px rgba(123, 146, 187, 0.1);
}

.section-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.title-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.status-pill {
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(219, 234, 254, 0.95);
  color: var(--navy);
  border: 1px solid rgba(29, 78, 216, 0.18);
  font-size: 0.85rem;
}

.room-card h3 {
  margin-top: 0;
  margin-bottom: 10px;
  color: var(--navy);
}

.room-card p {
  color: var(--muted);
  margin: 0 0 14px;
  line-height: 1.5;
}

.room-link {
  color: var(--accent);
  font-weight: 700;
  text-decoration: none;
}

.card-actions {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 14px;
}

.game-card {
  max-width: none;
}

.accent-button {
  background: linear-gradient(135deg, var(--btn-success-a), var(--btn-success-b));
  color: #f8fbff;
}

.join-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
  margin-top: 16px;
}

.compact-input {
  max-width: 180px;
  margin-top: 0;
}

.game-card .meta {
  margin-top: 0;
  margin-bottom: 6px;
}

.room-number-list {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 14px;
}

.room-chip {
  border-radius: 999px;
  padding: 6px 10px;
  background: rgba(219, 234, 254, 0.7);
  font-size: 0.82rem;
  color: var(--navy-dark);
}

.mini-button {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.82);
  color: var(--text);
  border-radius: 999px;
  padding: 8px 12px;
  cursor: pointer;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.meta span {
  border-radius: 999px;
  padding: 6px 10px;
  background: rgba(219, 234, 254, 0.7);
  font-size: 0.82rem;
}

.compact {
  padding-bottom: 20px;
}

.room-layout {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr;
  gap: 18px;
}

.board {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  grid-template-rows: repeat(8, 1fr);
  grid-auto-rows: 1fr;
  width: min(560px, 100%);
  aspect-ratio: 1 / 1;
  border: 1px solid var(--line);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 18px 36px rgba(123, 146, 187, 0.16);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(226, 236, 250, 0.92));
}

.square {
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  padding: 0;
  cursor: pointer;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  font: inherit;
  transition: transform 120ms ease, box-shadow 140ms ease, filter 140ms ease;
}

.square.light {
  background: #f6e7cf;
}

.square.dark {
  background: #cf9360;
}

.piece {
  position: relative;
  width: 68%;
  aspect-ratio: 1 / 1;
  height: auto;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  line-height: 1;
  box-sizing: border-box;
  flex-shrink: 0;
  box-shadow: 0 8px 14px rgba(30, 58, 95, 0.16);
}

.piece.red {
  background: var(--event-red);
  border: 3px solid #7f1d1d;
  color: #fff7f7;
}

.piece.cream {
  background: #fffaf0;
  border: 3px solid var(--navy-dark);
  color: var(--navy-dark);
}

.piece.yellow {
  background: var(--event-yellow);
  border: 3px solid #a16207;
  color: #111827;
}

.piece.king::before {
  content: '';
  position: absolute;
  inset: 18%;
  border-radius: 50%;
}

.piece.red.king::before {
  border: 3px solid #111827;
}

.piece.cream.king::before {
  border: 3px solid #f8fafc;
}

.piece.king {
  font-size: 1rem;
}

.chess-piece {
  width: auto;
  height: auto;
  aspect-ratio: auto;
  border-radius: 0;
  background: transparent;
  border: none;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
}

.chess-piece.white-piece {
  color: #fff8dc;
  text-shadow: 0 1px 2px rgba(30, 58, 95, 0.28);
}

.chess-piece.black-piece {
  color: var(--navy-dark);
  text-shadow: 0 0 1px rgba(248, 250, 252, 0.4);
}

.connect4-board {
  background: linear-gradient(180deg, #2563eb, var(--navy));
  gap: 6px;
  padding: 8px;
  border-radius: 24px;
}

.connect4-square {
  background: radial-gradient(circle at 30% 28%, #eff6ff, #bfdbfe);
  border-radius: 999px;
}

.connect4-piece {
  width: 82%;
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  box-shadow: inset 0 2px 0 rgba(255, 255, 255, 0.32), 0 6px 10px rgba(15, 23, 42, 0.16);
}

.connect4-piece.empty {
  background: #f8fbff;
  border: 3px solid #bfd0ea;
}

.connect4-piece.red,
.connect4-piece.player-one {
  background: radial-gradient(circle at 30% 28%, #fda4af, var(--event-red));
  border: 3px solid #be123c;
}

.connect4-piece.yellow,
.connect4-piece.player-two {
  background: radial-gradient(circle at 30% 28%, #fef08a, var(--event-yellow));
  border: 3px solid #ca8a04;
}

.tictactoe-board {
  background: linear-gradient(180deg, #dbeafe, #c7d8f5);
  gap: 8px;
  padding: 8px;
  border-radius: 24px;
}

.tictactoe-square {
  background: rgba(255, 255, 255, 0.92);
  border-radius: 18px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.75);
}

.tictactoe-piece {
  width: auto;
  height: auto;
  aspect-ratio: auto;
  border: none;
  background: transparent;
  font-size: clamp(2.2rem, 7vw, 4rem);
  font-weight: 900;
}

.tictactoe-piece.x-piece {
  color: var(--accent);
  text-shadow: 0 6px 12px rgba(29, 78, 216, 0.16);
}

.tictactoe-piece.o-piece {
  color: var(--event-orange);
  text-shadow: 0 6px 12px rgba(249, 115, 22, 0.16);
}

.battleship-shell {
  display: block;
  width: min(760px, 100%);
  aspect-ratio: auto !important;
  border: none;
  background: transparent;
  overflow: visible;
}

.battleship-wrap {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
}

.battleship-panel {
  background: var(--panel-soft);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 12px;
  box-shadow: 0 10px 22px rgba(123, 146, 187, 0.1);
}

.battleship-panel h3 {
  margin-top: 0;
  color: var(--navy);
}

.battleship-grid {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  gap: 4px;
  padding: 4px;
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(219, 234, 254, 0.72), rgba(191, 219, 254, 0.82));
}

.battleship-cell {
  aspect-ratio: 1 / 1;
  border-radius: 10px;
  border: 1px solid rgba(158, 180, 215, 0.55);
  background: #cfe0fb;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.battleship-cell.own-cell {
  background: #bad4f7;
}

.battleship-cell.own-cell.preview-valid {
  background: rgba(47, 191, 113, 0.22);
  box-shadow: inset 0 0 0 2px rgba(47, 191, 113, 0.55);
}

.battleship-cell.own-cell.preview-invalid {
  background: rgba(239, 68, 68, 0.26);
  box-shadow: inset 0 0 0 2px rgba(252, 165, 165, 0.7);
}

.battleship-cell.own-cell.ship-drop {
  animation: battleship-ship-drop 420ms ease-out;
}

.battleship-dot {
  width: 70%;
  aspect-ratio: 1 / 1;
  border-radius: 999px;
  transition: transform 120ms ease, background-color 120ms ease, border-color 120ms ease, opacity 120ms ease;
}

.battleship-dot.empty {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(158, 180, 215, 0.6);
}

.battleship-dot.ship {
  background: rgba(47, 191, 113, 0.8);
  border: 2px solid var(--event-green);
}

.battleship-dot.preview {
  opacity: 0.92;
}

.battleship-cell.own-cell.preview-valid .battleship-dot.preview {
  background: rgba(47, 191, 113, 0.55);
  border: 2px dashed rgba(47, 191, 113, 0.95);
  transform: scale(0.92);
}

.battleship-cell.own-cell.preview-invalid .battleship-dot.preview {
  background: rgba(248, 113, 113, 0.54);
  border: 2px dashed rgba(254, 202, 202, 0.95);
  transform: scale(0.88);
}

.battleship-dot.hit {
  background: #ef4444;
  border: 2px solid #fecaca;
}

.battleship-dot.miss {
  background: #e2e8f0;
  border: 2px solid #94a3b8;
  width: 36%;
}

@keyframes battleship-ship-drop {
  0% {
    transform: scale(0.8);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08), 0 0 0 rgba(88, 230, 212, 0);
  }

  55% {
    transform: scale(1.08);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08), 0 0 18px rgba(88, 230, 212, 0.4);
  }

  100% {
    transform: scale(1);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08), 0 0 0 rgba(88, 230, 212, 0);
  }
}

.square.selected {
  outline: 3px solid #fbbf24;
  outline-offset: -3px;
  filter: saturate(1.05);
}

.square.move-target {
  box-shadow: inset 0 0 0 3px rgba(56, 189, 248, 0.72);
}

.square.forced-piece {
  box-shadow: inset 0 0 0 3px rgba(12, 59, 122, 0.55);
}

.board-status {
  color: var(--muted);
}

.room-sidebar {
  background: var(--panel-soft);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
}

.control-block {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.control-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.game-control-panel .game-control-button {
  display: block;
  width: 100%;
  min-height: 58px;
  margin-top: 10px;
  font-size: 1.12rem;
  font-weight: 800;
  letter-spacing: 0.01em;
}

.prediction-control-panel .prediction-reset-button {
  background: rgba(219, 234, 254, 0.85);
}

.game-control-panel .game-control-button:disabled {
  opacity: 1;
  background: rgba(219, 234, 254, 0.55);
  border: 1px solid rgba(158, 180, 215, 0.45);
  color: #6b7b93;
  box-shadow: none;
}

.text-input {
  width: 100%;
  margin-top: 8px;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.92);
  color: var(--text);
  box-shadow: inset 0 1px 2px rgba(123, 146, 187, 0.08);
}

.button:disabled,
.mini-button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.social-damage-shell {
  display: block;
  width: min(760px, 100%);
  aspect-ratio: auto !important;
  border: none;
  background: transparent;
  overflow: visible;
}

.social-damage-wrap {
  display: grid;
  gap: 14px;
}

.compact-game-shell {
  width: min(980px, 100%);
}

.compact-game-shell.hangman-shell {
  display: flex;
  flex-direction: column;
  width: min(980px, 100%);
  grid-template-columns: none;
  grid-template-rows: none;
  aspect-ratio: auto;
}

.compact-game-shell .social-damage-wrap {
  grid-template-columns: repeat(2, minmax(220px, 1fr));
  align-items: start;
}

.compact-game-shell .social-damage-wrap.high-low-layout {
  grid-template-areas:
    'current controls'
    'score controls';
}

.compact-game-shell .social-damage-wrap.high-low-layout .high-low-current-card-panel {
  grid-area: current;
}

.compact-game-shell .social-damage-wrap.high-low-layout .high-low-score-panel {
  grid-area: score;
}

.compact-game-shell .social-damage-wrap.high-low-layout .high-low-controls-panel {
  grid-area: controls;
}

.compact-game-shell .social-damage-wrap.calendar-creator-layout {
  grid-template-columns: minmax(280px, 1fr) minmax(340px, 1.4fr);
}

.calendar-csv-input {
  width: 100%;
  min-height: 220px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.94);
  color: var(--text);
  resize: vertical;
  padding: 10px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', monospace;
  line-height: 1.35;
}

.calendar-control-row {
  margin-top: 10px;
}

.calendar-preview-meta {
  color: var(--muted);
  margin-top: 0;
}

.calendar-preview-months {
  display: grid;
  gap: 14px;
}

.calendar-month-card {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 14px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 10px 24px rgba(123, 146, 187, 0.1);
  position: relative;
  overflow: hidden;
}

.calendar-month-card::before {
  content: '';
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 6px;
  background: linear-gradient(90deg, var(--event-green), var(--event-cyan), var(--event-violet), var(--event-pink));
}

.calendar-month-card h4 {
  margin: 0 0 10px;
  color: var(--navy);
}

.calendar-month-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 6px;
}

.calendar-day-header {
  text-align: center;
  font-size: 0.75rem;
  color: var(--navy-dark);
  font-weight: 700;
  padding: 2px 0;
}

.calendar-day-cell {
  min-height: 58px;
  border-radius: 14px;
  border: 1px solid rgba(158, 180, 215, 0.45);
  background: rgba(248, 251, 255, 0.98);
  padding: 6px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.calendar-day-cell--empty {
  border-color: transparent;
  background: transparent;
}

.calendar-day-cell--active {
  border-color: rgba(29, 78, 216, 0.26);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(239, 246, 255, 0.94));
  box-shadow: 0 8px 18px rgba(123, 146, 187, 0.12);
}

.calendar-day-number {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--navy-dark);
}

.calendar-day-chip {
  font-size: 0.65rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.32);
  color: #fff;
  padding: 3px 7px;
  width: fit-content;
  font-weight: 700;
  box-shadow: 0 6px 10px rgba(15, 23, 42, 0.08);
}

.calendar-day-chip.event-parenting {
  background: var(--event-green);
}

.calendar-day-chip.event-graduation {
  background: var(--event-red);
}

.calendar-day-chip.event-summer {
  background: var(--event-yellow);
  color: var(--ink);
}

.calendar-day-chip.event-break {
  background: var(--event-pink);
}

.calendar-day-chip.event-trip {
  background: var(--event-cyan);
  color: var(--ink);
}

.calendar-day-chip.event-winter {
  background: var(--event-orange);
}

.calendar-day-chip.event-other {
  background: var(--event-violet);
}

.calendar-day-more {
  font-size: 0.62rem;
  color: var(--muted);
}

.social-panel {
  background: var(--panel-soft);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px;
}

.social-panel h3 {
  margin-top: 0;
  color: var(--navy);
}

.social-prompt-card {
  border-radius: 12px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(158, 180, 215, 0.55);
}

.social-prompt-card p {
  margin-top: 0;
  font-size: 1.05rem;
  color: var(--text);
}

.social-prompt-card span {
  color: var(--navy);
  font-weight: 700;
}

.waiting-card {
  opacity: 0.9;
}

.social-hand,
.social-submission-list {
  display: grid;
  gap: 10px;
  margin-top: 12px;
}

.social-hand {
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

.social-card-button,
.social-submission-card {
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.94);
  color: var(--text);
  padding: 14px;
  text-align: left;
  min-height: 92px;
}

.social-card-button {
  cursor: pointer;
}

.social-card-button.selected-card {
  outline: 3px solid #fbbf24;
  outline-offset: -3px;
  border-color: rgba(251, 191, 36, 0.5);
}

.social-submission-card strong {
  display: block;
  margin-bottom: 8px;
  color: var(--navy);
}

.social-submission-card p {
  margin: 0;
}

.social-score-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
}

.compact-score-list {
  margin-top: 10px;
}

.social-score-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 10px;
  border-radius: 10px;
  background: rgba(219, 234, 254, 0.55);
}

.social-score-list li strong {
  color: var(--navy);
}

.social-score-list li.judge-row {
  border: 1px solid rgba(29, 78, 216, 0.3);
}

/* ── Playing card component ──────────────────────────── */

.playing-card-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  padding: 8px 0 4px;
}

.playing-card-remaining {
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.playing-card {
  position: relative;
  width: 120px;
  height: 168px;
  border-radius: 14px;
  background: #fff;
  border: 2px solid rgba(0, 0, 0, 0.12);
  box-shadow: 0 12px 26px rgba(123, 146, 187, 0.22), 0 2px 6px rgba(123, 146, 187, 0.14);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: Georgia, 'Times New Roman', serif;
  user-select: none;
}

.playing-card--red .playing-card__corner,
.playing-card--red .playing-card__center {
  color: #c0392b;
}

.playing-card--black .playing-card__corner,
.playing-card--black .playing-card__center {
  color: #111;
}

.playing-card__corner {
  position: absolute;
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.15;
  text-align: center;
}

.playing-card__corner--tl {
  top: 8px;
  left: 10px;
}

.playing-card__corner--br {
  bottom: 8px;
  right: 10px;
  transform: rotate(180deg);
}

.playing-card__center {
  font-size: 2.8rem;
  line-height: 1;
}

.playing-card--back {
  background: linear-gradient(135deg, var(--navy) 25%, #1d4ed8 50%, var(--navy-dark) 75%);
  border-color: rgba(29, 78, 216, 0.28);
}

.playing-card__back-design {
  width: 90px;
  height: 136px;
  border-radius: 8px;
  border: 2px solid rgba(219, 234, 254, 0.45);
  background: repeating-linear-gradient(
    45deg,
    rgba(219, 234, 254, 0.12) 0px,
    rgba(219, 234, 254, 0.12) 4px,
    transparent 4px,
    transparent 12px
  );
}

/* ── Coin component ──────────────────────────────────── */

.coin-display {
  width: 130px;
  height: 130px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: Georgia, 'Times New Roman', serif;
  font-weight: 700;
  font-size: 1.45rem;
  letter-spacing: 0.04em;
  box-shadow: 0 12px 26px rgba(123, 146, 187, 0.22), inset 0 -4px 8px rgba(0, 0, 0, 0.14), inset 0 2px 6px rgba(255, 255, 255, 0.2);
  user-select: none;
}

.coin-display--waiting {
  background: radial-gradient(circle at 35% 35%, #ffffff, #dbeafe);
  border: 3px solid rgba(158, 180, 215, 0.45);
  color: var(--muted);
  font-size: 2.2rem;
}

.coin-display--heads {
  background: radial-gradient(circle at 35% 35%, #c9a227, #9a7a10);
  border: 3px solid #e0b930;
  color: #fff8e0;
  text-shadow: 0 1px 3px rgba(0,0,0,0.4);
}

.coin-display--tails {
  background: radial-gradient(circle at 35% 35%, #8fa8c8, #5c748e);
  border: 3px solid #a0bdda;
  color: #eef4ff;
  text-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

/* ── Hangman ──────────────────────────────────────────────── */
.hangman-wrap {
  display: flex;
  flex-direction: column;
  gap: 0;
  width: 100%;
}

.hangman-wrap > .social-panel {
  width: 100%;
  box-sizing: border-box;
}

.hangman-word-display {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(1.5rem, 1fr);
  gap: 4px;
  width: 100%;
  padding: 12px 0;
  overflow-x: auto;
}

.hangman-letter-tile {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  min-width: 0;
  height: 48px;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--navy);
  border-bottom: 3px solid var(--navy);
  text-transform: uppercase;
}

.hangman-letter-tile[data-blank="true"] {
  color: transparent;
}

.hangman-status-line {
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
  margin: 4px 0 0;
}

.hangman-alpha-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.hangman-letter-btn {
  min-width: 34px;
  height: 34px;
  padding: 0 4px;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: 6px;
}

.hangman-letter-btn.hangman-guessed {
  opacity: 0.35;
  cursor: not-allowed;
}

.hangman-party-visual-wrap {
  margin-top: 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.hangman-party-stage {
  width: 170px;
  height: 150px;
  border: 1px solid rgba(98, 121, 158, 0.25);
  border-radius: 12px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(239, 245, 255, 0.95));
  display: flex;
  align-items: center;
  justify-content: center;
}

.coin-display__label {
  pointer-events: none;
}

/* ── Mastermind ───────────────────────────────────────────── */

.mastermind-layout {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.mastermind-status-meta {
  margin: 0;
  color: var(--muted);
}

.mastermind-revealed-code {
  margin: 8px 0 0;
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent);
}

.mastermind-input {
  text-transform: none;
}

.mastermind-history-list li {
  gap: 12px;
}

/* ── Number range display ──────────────────────────── */

.number-range-display {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 18px 12px 14px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid rgba(158, 180, 215, 0.45);
  margin-top: 6px;
  text-align: center;
  box-shadow: 0 12px 24px rgba(123, 146, 187, 0.12);
}

.number-range-display__min,
.number-range-display__max {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  font-family: Georgia, 'Times New Roman', serif;
}

.number-range-display__sep {
  font-size: 1.4rem;
  color: var(--muted);
  line-height: 1;
}

.number-range-display__meta {
  font-size: 0.82rem;
  color: var(--muted);
  margin-top: 4px;
}

.number-range-display--solved {
  border-color: rgba(47, 191, 113, 0.45);
  background: rgba(220, 252, 231, 0.72);
}

.number-range-display__badge {
  font-size: 2.4rem;
  color: var(--accent);
  line-height: 1;
}

.number-range-display__solved-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
}

@media (max-width: 780px) {
  .room-layout {
    grid-template-columns: 1fr;
  }

  .compact-game-shell .social-damage-wrap {
    grid-template-columns: 1fr;
  }

  .compact-game-shell .social-damage-wrap.high-low-layout {
    grid-template-areas: none;
  }

  .compact-game-shell .social-damage-wrap.calendar-creator-layout {
    grid-template-columns: 1fr;
  }
}