:root {
    --ink: #0F1420;
    --panel: #161D2E;
    --panel-hi: #1E2740;
    --line: #2A3450;
    --paper: #E7EAF2;
    --paper-dim: #9AA4BF;
    --teal: #33D6C0;
    --teal-dim: #1B7A6E;
    --amber: #F2B84B;
  }

  * { box-sizing: border-box; }

  body {
    margin: 0;
    background: var(--ink);
    color: var(--paper);
    font-family: 'Inter', sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 32px 16px 64px;
  }

  .page-shell {
    width: min(100%, 1700px);
    display: grid;
    grid-template-columns: 260px minmax(0, 1120px) 260px;
    gap: 24px;
    align-items: start;
  }

  .game-guide {
    grid-column: 1 / -1;
    background:
      radial-gradient(circle at top right, rgba(51, 214, 192, 0.12), transparent 36%),
      var(--panel);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 24px;
  }

  .game-guide-heading {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 18px;
  }

  .game-guide-kicker {
    margin: 0 0 5px;
    color: var(--teal);
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
  }

  .game-guide-heading h1 {
    margin-bottom: 4px;
  }

  .game-guide-intro {
    max-width: 720px;
    margin: 0;
    color: var(--paper-dim);
    font-size: 14px;
    line-height: 1.55;
  }

  .game-guide-jump {
    flex: 0 0 auto;
    color: var(--ink);
    background: var(--teal);
    border-radius: 8px;
    padding: 10px 14px;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 13px;
    font-weight: 700;
    text-decoration: none;
  }

  .game-guide-jump:hover { background: #4EE6D0; }

  .game-guide-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
  }

  .guide-card {
    background: rgba(15, 20, 32, 0.72);
    border: 1px solid var(--line);
    border-radius: 10px;
    overflow: hidden;
  }

  .guide-card[open] { border-color: var(--teal-dim); }

  .guide-card summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 16px;
    color: var(--paper);
    cursor: pointer;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 15px;
    font-weight: 700;
    list-style: none;
  }

  .guide-card summary::-webkit-details-marker { display: none; }
  .guide-card summary::after { content: "+"; color: var(--teal); font-size: 20px; }
  .guide-card[open] summary::after { content: "−"; }
  .guide-card summary:focus-visible { outline: 2px solid var(--teal); outline-offset: -2px; }

  .guide-card-content {
    padding: 0 16px 16px;
    color: var(--paper-dim);
    font-size: 13px;
    line-height: 1.6;
  }

  .guide-card-content p { margin: 0; }
  .guide-card-content p + p { margin-top: 8px; }
  .guide-card-content ol { margin: 0; padding-left: 20px; }
  .guide-card-content li + li { margin-top: 5px; }

  .support-note {
    display: block;
    margin-top: 10px;
    color: var(--amber);
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
  }

  .stage {
    width: 100%;
    max-width: 640px;
    transition: max-width 0.2s ease;
    margin: 0 auto;
  }

  .stage.wide {
    max-width: 1120px;
  }

  .stage.wide .options-list {
    max-height: 460px;
  }

  .stage.wide .item-grid {
    max-height: 520px;
  }

  /* --- Header / scoreboard signature --- */
  .header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 28px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--line);
  }

  .wordmark {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 22px;
    letter-spacing: -0.02em;
  }
  .wordmark span { color: var(--teal); }

  .round-tally {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    color: var(--paper-dim);
    letter-spacing: 0.04em;
  }
  .round-tally b { color: var(--amber); }

  /* --- Narrowing bracket signature element --- */
  .bracket {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 24px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    color: var(--paper-dim);
  }
  .bracket-seg {
    flex: 1;
    height: 3px;
    background: var(--line);
    border-radius: 2px;
    position: relative;
    overflow: hidden;
  }
  .bracket-seg.done::after {
    content: "";
    position: absolute;
    inset: 0;
    background: var(--teal);
  }
  .bracket-seg.active::after {
    content: "";
    position: absolute;
    inset: 0;
    background: var(--amber);
  }

  .card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 28px;
  }

  h1 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 26px;
    font-weight: 700;
    margin: 0 0 6px;
    letter-spacing: -0.01em;
  }
  p.lede {
    color: var(--paper-dim);
    margin: 0 0 24px;
    line-height: 1.5;
    font-size: 15px;
  }

  .grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  button.choice {
    background: var(--panel-hi);
    border: 1px solid var(--line);
    color: var(--paper);
    font-family: 'Inter', sans-serif;
    font-size: 15px;
    font-weight: 500;
    padding: 14px 16px;
    border-radius: 10px;
    cursor: pointer;
    text-align: left;
    transition: border-color 0.15s ease, transform 0.1s ease;
  }
  button.choice:hover { border-color: var(--teal); transform: translateY(-1px); }
  button.choice:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; }

  button.primary {
    background: var(--teal);
    color: #08211D;
    border: none;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 15px;
    padding: 14px 22px;
    border-radius: 10px;
    cursor: pointer;
    width: 100%;
    margin-top: 8px;
  }
  button.primary:hover { background: #4EE6D0; }
  button.primary:focus-visible { outline: 2px solid var(--paper); outline-offset: 2px; }
  button.primary:disabled { background: var(--line); color: var(--paper-dim); cursor: not-allowed; }

  button.ghost {
    background: transparent;
    border: 1px solid var(--line);
    color: var(--paper-dim);
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    padding: 10px 16px;
    border-radius: 8px;
    cursor: pointer;
    margin-top: 10px;
  }
  button.ghost:hover { border-color: var(--paper-dim); color: var(--paper); }

  .yesno { display: flex; gap: 10px; margin-top: 20px; }
  .yesno button {
    flex: 1;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 16px;
    padding: 16px;
    border-radius: 10px;
    border: none;
    cursor: pointer;
  }
  .yesno .yes { background: var(--teal); color: #08211D; }
  .yesno .yes:hover { background: #4EE6D0; }
  .yesno .no { background: var(--panel-hi); color: var(--paper); border: 1px solid var(--line); }
  .yesno .no:hover { border-color: var(--paper-dim); }

  .options-list {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    color: var(--paper-dim);
    background: var(--ink);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 14px 16px;
    line-height: 1.9;
    max-height: 320px;
    overflow-y: auto;
    margin: 4px 0 4px;
  }

  .page-search {
    display: flex;
    gap: 8px;
    margin-top: 12px;
  }

  .page-search input[type="text"] {
    margin-bottom: 0;
    flex: 1;
  }

  .page-search button {
    min-width: 110px;
    margin-top: 0;
    width: auto;
  }

  .live-guess-search {
    flex-wrap: wrap;
    margin-bottom: 14px;
  }

  .live-guess-search input[type="text"] {
    min-width: min(260px, 100%);
  }

  .live-submit-bar {
    position: sticky;
    bottom: 12px;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin: 12px 0;
    padding: 12px;
    border: 1px solid var(--teal);
    border-radius: 10px;
    background: rgba(22, 29, 46, 0.96);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  }

  .live-submit-bar .lede {
    margin: 0;
  }

  .live-submit-bar button {
    flex: 0 0 auto;
    width: auto;
    min-width: 180px;
    margin: 0;
  }

  .search-result {
    margin-top: 8px;
    font-size: 13px;
    font-family: 'JetBrains Mono', monospace;
    color: var(--paper-dim);
  }

  .search-result.found {
    color: var(--teal);
  }

  .search-result.missing {
    color: var(--amber);
  }

  .option-list-items {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
  }

  .option-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(74px, 1fr));
    gap: 8px;
  }

  .option-card {
    background: var(--panel-hi);
    border: 1px solid var(--line);
    border-radius: 10px;
    height: 74px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .option-card.guessed,
  .option-row.guessed {
    border-color: var(--amber);
    box-shadow: 0 0 0 1px rgba(242, 184, 75, 0.16);
  }

  .option-card .option-media {
    width: 48px;
    height: 48px;
  }

  .guess-badge {
    position: absolute;
    top: 6px;
    left: 6px;
    z-index: 1;
    background: var(--amber);
    color: #1b1205;
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    line-height: 1;
    padding: 3px 6px;
    border-radius: 999px;
  }

  .option-row {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--panel-hi);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 8px 10px;
    color: var(--paper);
    word-break: break-word;
  }

  .option-row .idx {
    color: var(--teal);
    min-width: 3ch;
  }

  .option-row.guessed .idx {
    color: var(--amber);
  }

  .option-row .guess-badge {
    position: static;
    margin-left: auto;
  }

  .option-media {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    border: 1px solid var(--line);
    background: rgba(15, 20, 32, 0.55);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    flex-shrink: 0;
  }

  .option-thumb {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .option-emoji {
    font-size: 20px;
    line-height: 1;
  }

  .status-flag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    font-weight: 500;
    padding: 6px 12px;
    border-radius: 20px;
    margin-bottom: 14px;
  }
  .status-flag.exists { background: rgba(51,214,192,0.14); color: var(--teal); }
  .status-flag.absent { background: rgba(242,184,75,0.12); color: var(--amber); }

  input[type="text"], input[type="number"] {
    width: 100%;
    background: var(--ink);
    border: 1px solid var(--line);
    color: var(--paper);
    font-family: 'JetBrains Mono', monospace;
    font-size: 15px;
    padding: 12px 14px;
    border-radius: 8px;
    margin-bottom: 4px;
  }
  input:focus-visible { outline: 2px solid var(--teal); outline-offset: 1px; }

  .item-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 6px;
    margin: 16px 0;
    max-height: 360px;
    overflow-y: auto;
    padding-right: 4px;
  }
  .item-tile {
    background: var(--panel-hi);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 10px 12px;
    font-size: 13px;
    cursor: pointer;
    display: flex;
    gap: 8px;
    align-items: center;
  }
  .item-tile:hover { border-color: var(--teal); }
  .item-tile.selected { border-color: var(--teal); background: rgba(51,214,192,0.12); }
  .item-tile .id { color: var(--teal-dim); font-family: 'JetBrains Mono', monospace; }

  .item-media {
    width: 34px;
    height: 34px;
    border-radius: 8px;
    border: 1px solid var(--line);
    background: rgba(15, 20, 32, 0.6);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    flex-shrink: 0;
  }

  .item-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .item-media .emoji {
    font-size: 20px;
    line-height: 1;
  }

  .result {
    text-align: center;
    padding: 12px 0 4px;
  }
  .result .verdict {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 6px;
  }
  .result .verdict.win { color: var(--teal); }
  .result .verdict.lose { color: var(--amber); }
  .result .answer-name {
    font-family: 'JetBrains Mono', monospace;
    font-size: 16px;
    color: var(--paper-dim);
    margin-bottom: 20px;
  }

  .result .result-answer-media {
    display: flex;
    justify-content: center;
    margin: 8px 0 14px;
  }

  .result-answer-media-wrap {
    position: relative;
    display: inline-flex;
  }

  .result-answer-media-badge {
    position: absolute;
    top: -8px;
    left: -8px;
    z-index: 1;
    background: var(--amber);
    color: #1b1205;
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    line-height: 1;
    padding: 4px 7px;
    border-radius: 999px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.18);
  }

  .result .result-answer-media .option-media {
    width: 96px;
    height: 96px;
  }

  .result .result-answer-media .option-thumb {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .result .result-answer-media .option-emoji {
    font-size: 54px;
    line-height: 1;
  }

  .answer-details {
    text-align: left;
    margin: 0 0 18px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: var(--ink);
    overflow: hidden;
  }

  .answer-details summary {
    cursor: pointer;
    padding: 12px 14px;
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    color: var(--paper);
    list-style: none;
  }

  .answer-details summary::-webkit-details-marker {
    display: none;
  }

  .answer-details summary::after {
    content: " +";
    color: var(--teal);
    font-family: 'JetBrains Mono', monospace;
  }

  .answer-details[open] summary::after {
    content: " -";
  }

  .answer-details-body {
    border-top: 1px solid var(--line);
    padding: 10px 14px 12px;
    display: grid;
    gap: 8px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    color: var(--paper-dim);
  }

  .answer-details-row {
    display: flex;
    justify-content: space-between;
    gap: 8px;
  }

  .answer-details-row .exists {
    color: var(--teal);
  }

  .answer-details-row .absent {
    color: var(--amber);
  }

  .answer-details-page {
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 8px 10px;
    background: rgba(30, 39, 64, 0.35);
  }

  .answer-details-items {
    margin-top: 8px;
    font-size: 12px;
    line-height: 1.6;
    color: var(--paper);
    word-break: break-word;
  }

  .answer-details-options {
    margin-top: 8px;
  }

  .answer-details-options .options-list {
    max-height: none;
    margin: 0;
  }

  .review-feedback {
    margin: 14px 0 18px;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: var(--ink);
    text-align: left;
  }

  .review-feedback-copy {
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    color: var(--paper);
    margin-bottom: 12px;
  }

  .review-actions {
    margin-top: 0;
  }

  .review-stack {
    display: grid;
    gap: 12px;
    margin: 18px 0 12px;
    text-align: left;
  }

  .review-page {
    border: 1px solid var(--line);
    border-radius: 10px;
    background: var(--ink);
    padding: 14px;
  }

  .review-page-top {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    align-items: center;
    margin-bottom: 8px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
  }

  .review-page-title {
    color: var(--paper);
  }

  .review-page-choice {
    color: var(--teal);
  }

  .review-page-note {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    color: var(--paper-dim);
    margin-bottom: 10px;
  }

  .error-box {
    background: rgba(242,184,75,0.1);
    border: 1px solid var(--amber);
    color: var(--amber);
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 13px;
    margin-bottom: 16px;
  }

  select {
    width: 100%;
    background: var(--ink);
    border: 1px solid var(--line);
    color: var(--paper);
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
    padding: 12px 14px;
    border-radius: 8px;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%239AA4BF' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
  }
  select:focus-visible { outline: 2px solid var(--teal); outline-offset: 1px; }
  select option { background: var(--panel); }

  .field { margin-bottom: 16px; }
  .field label {
    display: block;
    font-size: 11px;
    font-family: 'JetBrains Mono', monospace;
    color: var(--paper-dim);
    letter-spacing: 0.07em;
    text-transform: uppercase;
    margin-bottom: 6px;
  }

  .guess-difficulty-controls {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin: 14px 0 16px;
  }
  .guess-difficulty-label {
    margin-right: 4px;
    color: var(--paper-dim);
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
  }
  .guess-difficulty-controls .ghost {
    margin: 0;
    padding: 7px 12px;
    font-size: 12px;
  }
  .guess-difficulty-controls .ghost.active {
    border-color: var(--teal);
    color: var(--teal);
    background: rgba(51,214,192,0.1);
  }
  .guess-difficulty-controls .ghost:disabled {
    opacity: 0.45;
    cursor: not-allowed;
  }

  .setup-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
  }

  .setup-top h1 {
    margin-bottom: 0;
  }

  .setup-top .ghost {
    margin-top: 0;
    white-space: nowrap;
  }

  .setup-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .mode-btns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 20px;
  }
  .main-mode-heading {
    margin: 22px 0 -10px;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 12px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--paper-dim);
  }
  .mode-btns button.computer {
    display: flex;
    align-items: center;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: var(--panel-hi);
    border: 1px solid var(--line);
    color: var(--paper);
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 15px;
    padding: 16px;
    border-radius: 10px;
    cursor: pointer;
  }
  .mode-btns button.computer:hover { border-color: var(--teal); }
  .mode-btns button.user {
    display: flex;
    align-items: center;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: var(--teal);
    color: #08211D;
    border: none;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 15px;
    padding: 16px;
    border-radius: 10px;
    cursor: pointer;
  }
  .mode-btns button.user:hover { background: #4EE6D0; }

  .mode-btns .mode-title {
    display: block;
    font-size: 15px;
    line-height: 1.2;
  }

  .mode-btns .mode-description {
    display: block;
    font-family: 'Inter', sans-serif;
    font-size: 11px;
    font-weight: 500;
    line-height: 1.35;
  }

  .mode-btns button.computer .mode-description {
    color: var(--paper-dim);
  }

  .mode-btns button.user .mode-description {
    color: rgba(8, 33, 29, 0.72);
  }

  .mode-btns button.live {
    background: transparent;
    border: 1px dashed var(--teal);
    color: var(--teal);
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 15px;
    padding: 16px;
    border-radius: 10px;
    cursor: pointer;
  }
  .mode-btns button.live:hover { border-style: solid; background: rgba(51,214,192,0.1); }

  .live-events-section {
    margin-top: 28px;
    padding: 18px 14px 14px;
    border-top: 1px solid var(--line);
    background: rgba(255,255,255,0.018);
    border-radius: 10px;
  }

  .live-events-heading {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 10px;
  }

  .live-events-heading h2 {
    margin: 0;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 16px;
    color: var(--paper-dim);
  }

  .live-events-heading span {
    color: var(--paper-dim);
    font-size: 12px;
  }

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

  .live-event-card {
    min-width: 0;
    padding: 10px;
    background: transparent;
    border: 1px solid rgba(154,164,191,0.45);
    border-radius: 10px;
  }

  .live-event-card button.live {
    width: 100%;
    min-height: 52px;
    background: transparent;
    border: 1px solid rgba(51,214,192,0.55);
    color: var(--paper);
    border-radius: 8px;
    cursor: pointer;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 14px;
    font-weight: 700;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
  }

  .live-event-countdown {
    color: var(--teal);
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    font-weight: 700;
  }

  .live-event-card button.live:hover {
    background: rgba(51, 214, 192, 0.1);
    border-color: var(--teal);
  }

  .live-schedule-details { margin-top: 8px; }

  .live-schedule-details summary {
    color: var(--paper-dim);
    cursor: pointer;
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    list-style-position: inside;
    text-align: center;
  }

  .live-schedule-details[open] summary { color: var(--teal); }

  .live-schedule-copy {
    display: block;
    margin-top: 7px;
    color: var(--paper-dim);
    font-size: 11px;
    line-height: 1.45;
    text-align: center;
  }

  .live-meta {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    color: var(--paper-dim);
    margin: 8px 0 16px;
    line-height: 1.6;
  }

  .live-participants {
    border: 1px solid var(--line);
    border-radius: 10px;
    background: var(--ink);
    padding: 10px 12px;
    margin: 12px 0 16px;
  }

  .live-participants-title {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    color: var(--paper-dim);
    margin-bottom: 8px;
  }

  .live-participants-list {
    margin: 0;
    padding-left: 18px;
    display: grid;
    gap: 4px;
    font-size: 14px;
  }

  .main-scoreboard {
    position: sticky;
    top: 24px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 18px;
  }

  .main-scoreboard h2 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 18px;
    margin: 0 0 6px;
  }

  .main-scoreboard-copy {
    color: var(--paper-dim);
    font-size: 12px;
    margin: 0 0 14px;
  }

  .info-page-card ol.main-scoreboard-list,
  ol.main-scoreboard-list {
    counter-reset: scoreboard-rank;
    margin: 0;
    padding-left: 0;
    display: grid;
    gap: 8px;
    list-style: none;
  }

  .scoreboard-scroll {
    max-height: 292px;
    overflow-y: auto;
    overscroll-behavior: contain;
    padding: 2px 8px 2px 0;
    scrollbar-color: rgba(51, 214, 192, 0.48) transparent;
    scrollbar-width: thin;
  }

  .scoreboard-scroll:focus-visible {
    border-radius: 6px;
    outline: 2px solid rgba(51, 214, 192, 0.42);
    outline-offset: 3px;
  }

  .main-scoreboard-list li {
    counter-increment: scoreboard-rank;
    display: grid;
    grid-template-columns: 4ch minmax(0, 1fr) max-content;
    align-items: baseline;
    column-gap: 8px;
    min-width: 0;
  }

  .main-scoreboard-list li::before {
    content: counter(scoreboard-rank) ".";
    color: var(--paper-dim);
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    text-align: left;
  }

  .main-scoreboard-list li {
    font-family: 'Inter', sans-serif;
    font-size: 13px;
  }

  .main-scoreboard-list li strong {
    font-weight: 600;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .scoreboard-points {
    color: var(--paper-dim);
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    margin-left: 10px;
    white-space: nowrap;
  }

  .main-scoreboard-empty {
    color: var(--paper-dim);
    font-size: 13px;
    line-height: 1.5;
  }

  .scoreboard-group {
    border-top: 1px solid var(--line);
    padding-top: 12px;
    margin-top: 12px;
  }

  .scoreboard-group h3 {
    color: var(--teal);
    display: flex;
    flex-direction: column;
    gap: 2px;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 14px;
    font-weight: 700;
    margin: 0 0 8px;
  }

  .scoreboard-heading-line {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
  }

  .scoreboard-limit {
    color: var(--paper-dim);
    font-family: 'Inter', sans-serif;
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
  }

  .scoreboard-period-date {
    color: var(--paper-dim);
    font-family: 'Inter', sans-serif;
    font-size: 11px;
    font-weight: 400;
  }

  .leaderboard-hub {
    margin-top: 20px;
  }

  .leaderboard-hub-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 18px;
  }

  .leaderboard-hub-tab {
    flex: 1 1 0;
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.04);
    color: var(--paper-dim);
    cursor: pointer;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 15px;
    font-weight: 700;
  }

  .leaderboard-hub-tab:hover,
  .leaderboard-hub-tab:focus-visible {
    border-color: var(--teal);
    color: var(--paper);
  }

  .leaderboard-hub-tab.active {
    border-color: var(--teal);
    background: var(--teal);
    color: var(--ink);
  }

  .leaderboard-hub-board {
    position: static;
    min-width: 0;
  }

  .leaderboard-hub-board[hidden] {
    display: none;
  }

  .leaderboard-period-grid {
    display: grid;
    gap: 16px;
  }

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

  .leaderboard-period-grid-live {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .leaderboard-period-grid .scoreboard-group {
    min-width: 0;
  }

  .leaderboard-period-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 4px 0 14px;
  }

  .leaderboard-period-tab {
    flex: 1 1 120px;
    min-width: 0;
    border: 1px solid var(--line);
    border-radius: 9px;
    padding: 9px 12px;
    background: rgba(255, 255, 255, 0.035);
    color: var(--paper-dim);
    cursor: pointer;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 13px;
    font-weight: 700;
  }

  .leaderboard-period-tab:hover,
  .leaderboard-period-tab:focus-visible {
    border-color: var(--teal);
    color: var(--paper);
  }

  .leaderboard-period-tab.active {
    border-color: var(--teal);
    background: rgba(51, 214, 192, 0.16);
    color: var(--teal);
  }

  .leaderboard-period-active .scoreboard-group {
    margin-top: 0;
  }

  .leaderboard-hub-board .main-scoreboard-list li strong {
    overflow: visible;
    overflow-wrap: anywhere;
    text-overflow: clip;
    white-space: normal;
  }

  .live-events-hub {
    margin-top: 0;
  }

  .challenge-lobby-card,
  .live-events-lobby-card {
    margin-top: 18px;
  }

  .challenge-lobby-card .challenge-promo {
    margin-top: 0;
    padding-top: 0;
    border-top: 0;
  }

  .challenge-promo {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    margin-top: 22px;
    padding-top: 20px;
    border-top: 1px solid var(--line);
  }

  .challenge-promo h2,
  .challenge-promo p {
    margin: 0;
  }

  .challenge-promo-copy {
    max-width: 650px;
  }

  .challenge-promo-kicker {
    display: block;
    margin-bottom: 7px;
    color: var(--teal);
    font-family: 'Inter', sans-serif;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.09em;
    text-transform: uppercase;
  }

  .challenge-promo h2 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(21px, 2.5vw, 27px);
    letter-spacing: -0.025em;
    line-height: 1.1;
  }

  .challenge-promo p {
    color: var(--paper-dim);
    margin-top: 8px;
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    line-height: 1.55;
  }

  .challenge-settings-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px 16px;
    margin: 18px 0;
  }

  .challenge-invite {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 8px;
    margin: 16px 0 10px;
  }

  .challenge-invite-actions {
    display: flex;
    gap: 8px;
  }

  .challenge-code {
    color: var(--paper-dim);
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    margin-bottom: 18px;
  }

  .challenge-lobby-actions {
    display: flex;
    gap: 10px;
    margin-top: 18px;
  }

  .challenge-results {
    display: grid;
    gap: 10px;
    margin: 18px 0;
    padding: 0;
    list-style: none;
  }

  .challenge-result-row {
    display: grid;
    gap: 4px;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 10px;
  }

  .challenge-result-row span {
    color: var(--paper-dim);
    font-size: 13px;
  }

  .challenge-final-scores li {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: baseline;
    gap: 16px;
  }

  .challenge-final-scores li strong {
    min-width: 0;
    overflow-wrap: anywhere;
  }

  .challenge-final-scores .scoreboard-points {
    float: none;
    margin-left: 0;
    white-space: nowrap;
  }

  .challenge-reaction-trigger {
    position: fixed;
    right: 22px;
    bottom: 22px;
    z-index: 80;
    width: 52px;
    height: 52px;
    padding: 0;
    border: 1px solid rgba(242, 184, 75, 0.55);
    border-radius: 50%;
    background: rgba(21, 27, 41, 0.94);
    color: var(--amber);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.34);
    cursor: pointer;
  }

  .challenge-reaction-trigger:hover:not(:disabled) {
    transform: translateY(-2px);
    background: rgba(242, 184, 75, 0.13);
  }

  .challenge-reaction-trigger:disabled {
    cursor: default;
    opacity: 0.42;
  }

  .challenge-reaction-trigger svg {
    width: 23px;
    height: 23px;
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1.8;
  }

  .challenge-reaction-trigger > span {
    position: absolute;
    top: -4px;
    right: -3px;
    display: grid;
    place-items: center;
    min-width: 20px;
    height: 20px;
    padding: 0 5px;
    border-radius: 10px;
    background: var(--amber);
    color: var(--ink);
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    font-weight: 700;
  }

  .challenge-signal-picker-backdrop {
    position: fixed;
    inset: 0;
    z-index: 1200;
    display: grid;
    place-items: center;
    padding: 20px;
    background: rgba(4, 7, 13, 0.78);
    backdrop-filter: blur(7px);
  }

  .challenge-signal-picker {
    width: min(760px, 100%);
    max-height: min(78vh, 720px);
    overflow: hidden;
    padding: 20px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: var(--panel);
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.48);
  }

  .challenge-signal-picker-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 16px;
  }

  .challenge-signal-picker-heading h2,
  .challenge-signal-picker-heading p {
    margin: 0;
  }

  .challenge-signal-picker-heading p {
    margin-top: 5px;
    color: var(--paper-dim);
    font-size: 13px;
  }

  .challenge-signal-picker-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(76px, 1fr));
    gap: 7px;
    max-height: calc(min(78vh, 720px) - 105px);
    overflow-y: auto;
    padding-right: 4px;
  }

  .challenge-signal-picker-grid.text-mode {
    grid-template-columns: repeat(auto-fill, minmax(125px, 1fr));
  }

  .challenge-signal-picker-item {
    position: relative;
    display: grid;
    place-items: center;
    min-height: 68px;
    padding: 6px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: var(--panel-hi);
    color: var(--paper);
    font: inherit;
    cursor: pointer;
  }

  .challenge-signal-picker-item:hover:not(:disabled) {
    border-color: var(--amber);
    background: rgba(242, 184, 75, 0.09);
  }

  .challenge-signal-picker-item .challenge-signal-visual {
    width: 44px;
    height: 44px;
    object-fit: contain;
  }

  .challenge-signal-picker-item .challenge-signal-emoji {
    display: grid;
    place-items: center;
    font-size: 35px;
    line-height: 1;
  }

  .challenge-signal-picker-item.text-mode {
    min-height: 54px;
    padding: 8px 10px;
  }

  .challenge-signal-picker-item .challenge-signal-text {
    width: auto;
    height: auto;
    color: var(--paper);
    font-family: 'Inter', sans-serif;
    font-size: 12px;
    font-weight: 600;
    line-height: 1.25;
    text-align: center;
  }

  .challenge-signal-text-fallback {
    display: grid;
    place-items: center;
    overflow: hidden;
    color: var(--paper);
    font-size: 11px;
    line-height: 1.2;
    text-align: center;
  }

  .challenge-signal-shared-mark {
    position: absolute;
    top: 7px;
    right: 7px;
    display: grid;
    place-items: center;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--teal);
    color: var(--ink);
    font-size: 12px;
    font-weight: 800;
  }

  .challenge-signal-picker-item.shared {
    cursor: default;
    opacity: 0.55;
  }

  .challenge-signal-reaction {
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 1400;
    display: grid;
    place-items: center;
    width: 92px;
    height: 92px;
    padding: 8px;
    border: 1px solid rgba(242, 184, 75, 0.7);
    border-radius: 50%;
    background:
      radial-gradient(circle at 50% 50%, rgba(255, 248, 206, 0.32), rgba(51, 214, 192, 0.12) 48%, rgba(21, 27, 41, 0.82) 72%);
    box-shadow:
      0 0 22px rgba(242, 184, 75, 0.58),
      0 0 48px rgba(51, 214, 192, 0.34),
      0 16px 48px rgba(0, 0, 0, 0.42);
    pointer-events: none;
    animation: challenge-signal-fly 2.35s cubic-bezier(.2, .75, .25, 1) forwards;
  }

  .challenge-signal-reaction .challenge-signal-visual {
    width: 76px;
    height: 76px;
    object-fit: contain;
    filter:
      drop-shadow(0 0 8px rgba(255, 248, 206, 0.88))
      drop-shadow(0 0 14px rgba(242, 184, 75, 0.55));
  }

  .challenge-signal-reaction .challenge-signal-emoji {
    display: grid;
    place-items: center;
    font-size: 58px;
    line-height: 1;
    filter: drop-shadow(0 0 10px rgba(255, 230, 126, 0.88));
  }

  .challenge-signal-reaction.text-mode {
    width: auto;
    min-width: 92px;
    max-width: min(240px, calc(100vw - 40px));
    height: auto;
    min-height: 58px;
    padding: 14px 20px;
    border-radius: 16px;
  }

  .challenge-signal-reaction.text-mode .challenge-signal-text {
    width: auto;
    height: auto;
    color: var(--paper);
    font-family: 'Space Grotesk', sans-serif;
    font-size: 17px;
    font-weight: 700;
    line-height: 1.2;
    text-align: center;
    filter: drop-shadow(0 0 9px rgba(255, 230, 126, 0.38));
  }

  .challenge-signal-reaction::before,
  .challenge-signal-reaction::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
  }

  .challenge-signal-reaction::before {
    inset: -10px;
    border: 1px solid rgba(242, 184, 75, 0.58);
    box-shadow:
      0 0 18px rgba(242, 184, 75, 0.28),
      inset 0 0 15px rgba(51, 214, 192, 0.12);
    animation: challenge-signal-ring 1.05s ease-out infinite;
  }

  .challenge-signal-reaction::after {
    inset: -15px;
    background: conic-gradient(
      from 0deg,
      transparent 0deg,
      transparent 292deg,
      rgba(255, 242, 174, 0.08) 312deg,
      rgba(255, 248, 211, 0.72) 337deg,
      transparent 360deg
    );
    -webkit-mask: radial-gradient(circle, transparent 60%, #000 62%);
    mask: radial-gradient(circle, transparent 60%, #000 62%);
    opacity: 0.72;
    animation: challenge-signal-sheen 1.65s linear infinite;
  }

  @keyframes challenge-signal-fly {
    0% {
      opacity: 0;
      transform: translate3d(0, 28px, 0) scale(0.45) rotate(8deg);
    }
    14% {
      opacity: 1;
    }
    68% {
      opacity: 1;
      transform: translate3d(calc(-50vw + 66px), calc(-50vh + 66px), 0) scale(1.22) rotate(-3deg);
    }
    100% {
      opacity: 0;
      transform: translate3d(calc(-50vw + 66px), calc(-50vh + 25px), 0) scale(1.4) rotate(0);
    }
  }

  @keyframes challenge-signal-ring {
    0% {
      opacity: 0.72;
      transform: scale(0.9);
    }
    72% {
      opacity: 0.24;
      transform: scale(1.12);
    }
    100% {
      opacity: 0;
      transform: scale(1.18);
    }
  }

  @keyframes challenge-signal-sheen {
    to { transform: rotate(360deg); }
  }

  .live-visual-reaction {
    position: fixed;
    right: calc(18px + var(--live-reaction-lane, 0px));
    bottom: 18px;
    z-index: 1350;
    display: grid;
    place-items: center;
    width: 58px;
    height: 58px;
    padding: 7px;
    border: 1px solid rgba(51, 214, 192, 0.36);
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 248, 211, 0.2), rgba(51, 214, 192, 0.08) 58%, rgba(21, 27, 41, 0.6));
    box-shadow:
      0 0 15px rgba(51, 214, 192, 0.3),
      0 0 24px rgba(242, 184, 75, 0.2);
    pointer-events: none;
    animation: live-reaction-rise 2.05s cubic-bezier(.2, .72, .22, 1) forwards;
  }

  .live-visual-reaction::after {
    content: "";
    position: absolute;
    top: 48px;
    width: 2px;
    height: 36px;
    border-radius: 2px;
    background: linear-gradient(to bottom, rgba(51, 214, 192, 0.36), transparent);
    filter: blur(1px);
  }

  .live-visual-reaction .challenge-signal-visual {
    width: 42px;
    height: 42px;
    object-fit: contain;
    filter: drop-shadow(0 0 7px rgba(255, 248, 211, 0.62));
  }

  .live-visual-reaction .challenge-signal-emoji {
    display: grid;
    place-items: center;
    font-size: 35px;
    line-height: 1;
  }

  @keyframes live-reaction-rise {
    0% {
      opacity: 0;
      transform: translate3d(0, 22px, 0) scale(0.68);
    }
    14% {
      opacity: 0.92;
    }
    76% {
      opacity: 0.82;
      transform: translate3d(-8px, calc(-82vh + 78px), 0) scale(1);
    }
    100% {
      opacity: 0;
      transform: translate3d(-14px, calc(-94vh + 78px), 0) scale(0.86);
    }
  }

  .live-answer-mode {
    margin: 16px 0;
    padding: 14px;
    border: 1px solid var(--teal);
    border-radius: 10px;
    background: rgba(51, 214, 192, 0.08);
  }

  .live-answer-mode-title {
    margin: 0 0 10px;
    color: var(--paper);
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
  }

  .live-answer-mode-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    margin-bottom: 10px;
  }

  .live-answer-mode button.active {
    border-color: var(--teal);
    background: var(--teal);
    color: var(--ink);
  }

  .live-answer-mode .lede { margin: 0; }

  .live-selection-note {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin: 12px 0;
    padding: 10px 12px;
    border-left: 3px solid var(--teal);
    border-radius: 6px;
    background: rgba(51, 214, 192, 0.06);
    color: var(--paper-dim);
    font-size: 12px;
    line-height: 1.45;
  }

  .live-selection-note strong { color: var(--paper); }

  .live-selection-count {
    flex: 0 0 auto;
    color: var(--teal);
    font-family: 'JetBrains Mono', monospace;
    white-space: nowrap;
  }

  .site-header {
    width: min(100%, 1700px);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 24px;
    padding: 0 4px 18px;
    border-bottom: 1px solid var(--line);
  }

  .site-brand {
    color: var(--paper);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.055em;
    text-decoration: none;
    white-space: nowrap;
    transition: transform 0.18s ease, filter 0.18s ease;
  }

  .brand-word {
    position: relative;
    line-height: 1;
  }

  .site-brand .brand-accent {
    color: var(--teal);
    position: relative;
    text-shadow: 0 0 22px rgba(51, 214, 192, 0.22);
  }

  .site-brand .brand-accent::after {
    content: "";
    position: absolute;
    right: 2px;
    bottom: -5px;
    width: 82%;
    height: 3px;
    border-radius: 999px;
    background: linear-gradient(90deg, transparent, var(--teal));
    transform: rotate(-2deg);
    transform-origin: right center;
  }

  .brand-mark {
    display: inline-grid;
    place-items: center;
    width: 27px;
    height: 27px;
    margin-left: 2px;
    color: var(--ink);
    background: linear-gradient(145deg, #ffe29a, var(--amber));
    border-radius: 50% 50% 50% 12%;
    box-shadow: 0 5px 18px rgba(255, 193, 92, 0.24);
    font-family: 'Space Grotesk', sans-serif;
    font-size: 17px;
    line-height: 1;
    transform: rotate(5deg);
    transition: transform 0.18s ease;
  }

  .site-brand:hover {
    filter: brightness(1.08);
    transform: translateY(-1px);
  }

  .site-brand:hover .brand-mark { transform: rotate(-5deg) scale(1.1); }

  .site-nav {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 4px;
    flex-wrap: wrap;
  }

  .site-nav a {
    color: var(--paper-dim);
    border-radius: 7px;
    padding: 10px 12px;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0;
    line-height: 1.2;
    text-decoration: none;
    text-transform: none;
  }

  .site-nav a:hover,
  .site-nav a.active {
    color: var(--paper);
    background: var(--panel-hi);
  }

  .site-nav a.support-link { color: var(--amber); }

  .audio-settings {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 8px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: rgba(22, 29, 46, 0.82);
  }

  .audio-setting {
    display: flex;
    align-items: center;
    gap: 5px;
    color: var(--paper-dim);
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    white-space: nowrap;
  }

  .audio-toggle {
    min-width: 38px;
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 4px 7px;
    color: var(--paper-dim);
    background: var(--ink);
    font: inherit;
    cursor: pointer;
  }

  .audio-toggle[aria-pressed="true"] {
    border-color: var(--teal-dim);
    color: var(--ink);
    background: var(--teal);
  }

  .audio-toggle:focus-visible {
    outline: 2px solid var(--teal);
    outline-offset: 2px;
  }

  .info-page {
    width: min(100%, 900px);
    margin: 24px auto 0;
  }

  .info-page-card {
    background:
      radial-gradient(circle at top right, rgba(51, 214, 192, 0.11), transparent 40%),
      var(--panel);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: clamp(26px, 5vw, 52px);
  }

  .info-page-kicker {
    margin: 0 0 8px;
    color: var(--teal);
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
  }

  .info-page-card h1 { font-size: clamp(30px, 6vw, 48px); margin-bottom: 16px; }
  .info-page-card h2 { font-family: 'Space Grotesk', sans-serif; font-size: 20px; margin: 28px 0 8px; }
  .info-page-card p,
  .info-page-card li { color: var(--paper-dim); font-size: 15px; line-height: 1.7; }
  .info-page-card ol { padding-left: 22px; }
  .info-page-card li + li { margin-top: 8px; }
  .info-page-card .support-note {
    color: var(--amber);
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
  }

  .info-page-card .about-credit {
    margin: 28px 0 0;
    color: color-mix(in srgb, var(--paper-dim) 72%, transparent);
    font-size: 12px;
    line-height: 1.5;
  }

  .info-page-card .about-credit a {
    color: inherit;
    text-underline-offset: 2px;
  }

  .info-page-card .about-credit a:hover,
  .info-page-card .about-credit a:focus-visible {
    color: var(--teal);
  }

  .hidden { display: none !important; }
  body:not(.player-ready) .player-only { display: none !important; }
  body:not(.player-ready) #aboutLink { display: none !important; }
  body.focus-mode .site-nav,
  body.focus-mode .main-scoreboard,
  body.focus-mode .audio-settings,
  body.focus-mode .mobile-support-mount {
    display: none !important;
  }
  body.focus-mode .page-shell {
    grid-template-columns: minmax(0, 1120px);
    justify-content: center;
  }
  body.focus-mode .stage { grid-column: 1; }
  body.focus-mode .site-header {
    width: min(100%, 1120px);
    margin: 0 auto 14px;
    padding: 10px 18px 16px;
    align-items: center;
    flex-direction: column;
    justify-content: center;
    gap: 0;
    text-align: center;
    border-bottom: 0;
  }
  body.focus-mode .site-brand { font-size: 30px; }
  body.focus-mode .site-brand .brand-accent::after { display: none; }

  body:not(.player-ready) .page-shell {
    grid-template-columns: minmax(0, 1120px);
    justify-content: center;
  }
  body:not(.player-ready) .stage { grid-column: 1; }

  body:not(.player-ready) .site-header {
    width: min(100%, 1120px);
    margin: 0 auto 14px;
    padding: 10px 18px 16px;
    align-items: center;
    flex-direction: column;
    justify-content: center;
    gap: 0;
    text-align: center;
    border-bottom: 0;
  }

  body:not(.player-ready) .site-brand {
    font-size: clamp(38px, 8vw, 58px);
  }

  body:not(.player-ready) .site-brand .brand-accent::after {
    bottom: -7px;
    height: 4px;
  }

  @media (prefers-reduced-motion: reduce) {
    button.choice { transition: none; }
    .stage { transition: none; }
    .challenge-signal-reaction {
      animation-duration: 0.8s;
      animation-timing-function: ease-out;
    }
    .challenge-signal-reaction::before,
    .challenge-signal-reaction::after {
      animation: none;
    }
    .live-visual-reaction {
      animation-duration: 0.75s;
    }
  }

  @media (max-width: 1100px) {
    .page-shell { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .game-guide { order: -3; }
    .stage { grid-column: 1 / -1; order: 1; }
    .main-scoreboard { position: static; }
    .user-guess-scoreboard { order: 2; }
    .live-scoreboard { order: 3; }
    .game-guide-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .site-header { flex-wrap: wrap; }
    .audio-settings { width: 100%; justify-content: center; }
  }

  @media (max-width: 700px) {
    .page-shell { grid-template-columns: 1fr; }
    .stage { grid-column: auto; }
    #gamePage > .main-scoreboard { display: none; }
    .leaderboard-hub-tabs { flex-direction: column; }

    .leaderboard-period-grid-masters,
    .leaderboard-period-grid-live { grid-template-columns: 1fr; }
    .leaderboard-period-tab { flex-basis: calc(50% - 4px); }
    .challenge-promo { align-items: stretch; flex-direction: column; }
    .challenge-settings-grid { grid-template-columns: 1fr; }
    .challenge-invite { grid-template-columns: 1fr; }
    .challenge-invite-actions { display: grid; grid-template-columns: 1fr; }
    .challenge-lobby-actions { align-items: stretch; flex-direction: column; }
    .challenge-signal-picker-backdrop { align-items: end; padding: 0; }
    .challenge-signal-picker {
      width: 100%;
      max-height: 85dvh;
      padding: 16px;
      border-right: 0;
      border-bottom: 0;
      border-left: 0;
      border-radius: 18px 18px 0 0;
    }
    .challenge-signal-picker-grid {
      grid-template-columns: repeat(5, minmax(0, 1fr));
      gap: 5px;
      max-height: calc(85dvh - 100px);
    }
    .challenge-signal-picker-grid.text-mode {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .challenge-signal-picker-item {
      min-height: 52px;
      padding: 4px;
      border-radius: 8px;
    }
    .challenge-signal-picker-item .challenge-signal-visual {
      width: 34px;
      height: 34px;
    }
    .challenge-signal-picker-item .challenge-signal-emoji {
      font-size: 29px;
    }
    .live-submit-bar { align-items: stretch; flex-direction: column; }
    .live-submit-bar button { width: 100%; }
    .game-guide { padding: 18px; }
    .game-guide-heading { align-items: stretch; flex-direction: column; }
    .game-guide-jump { text-align: center; }
    .game-guide-grid { grid-template-columns: 1fr; }
    .site-header { align-items: flex-start; flex-direction: column; gap: 12px; }
    .site-nav { justify-content: flex-start; }
    .site-brand { font-size: 27px; }
    .site-nav { gap: 2px; }
    .site-nav a { padding: 8px; font-size: 11.5px; }
    .audio-settings {
      width: min(100% - 32px, 1180px);
      margin: 16px auto 34px;
      justify-content: flex-start;
      flex-wrap: wrap;
    }
    .mobile-support-mount:not(:empty) {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 8px;
      width: min(100% - 32px, 1180px);
      margin: 16px auto 0;
      text-align: center;
    }
    .mobile-support-mount a {
      display: block;
      padding: 12px 16px;
      border: 1px solid rgba(242, 183, 5, 0.42);
      border-radius: 10px;
      color: var(--amber);
      background: rgba(242, 183, 5, 0.07);
      font-family: 'Space Grotesk', sans-serif;
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 0.04em;
      text-decoration: none;
      text-transform: uppercase;
    }
    .mobile-support-mount #aboutLink {
      border-color: var(--line);
      color: var(--paper-dim);
      background: rgba(255, 255, 255, 0.025);
    }
    .live-event-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .live-selection-note { align-items: flex-start; flex-direction: column; gap: 5px; }
  }

  @media (max-width: 420px) {
    .grid { grid-template-columns: 1fr; }
    .mode-btns { grid-template-columns: 1fr; }
    .live-event-grid { grid-template-columns: 1fr; }
    .setup-top { flex-direction: column; align-items: stretch; }
    .setup-top .ghost { white-space: normal; }
    .setup-actions {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      width: 100%;
    }
    .setup-actions .ghost {
      width: 100%;
      min-width: 0;
      padding-inline: 10px;
    }
    .options-list { max-height: 300px; }
    .item-grid { max-height: 340px; }
  }

.site-footer {
  width: min(100% - 32px, 1180px);
  margin: 12px auto 28px;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

.site-footer a,
.legal-page a {
  color: var(--amber);
}

.legal-page {
  width: min(100% - 32px, 860px);
  margin: 28px auto 56px;
}

.legal-page article {
  padding: clamp(22px, 4vw, 42px);
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.legal-page h1 {
  margin-top: 0;
}

.legal-page h2 {
  margin: 30px 0 10px;
  color: var(--amber);
}

.legal-page p,
.legal-page li {
  line-height: 1.7;
}

.legal-page .legal-notice {
  padding: 14px 16px;
  border: 1px solid rgba(242, 183, 5, 0.42);
  border-radius: 10px;
  background: rgba(242, 183, 5, 0.07);
}
.language-setting {
  align-items: center;
  backdrop-filter: blur(10px);
  background: rgba(22, 29, 46, 0.9);
  border: 1px solid var(--line);
  border-radius: 999px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.16);
  color: var(--paper);
  display: flex;
  font-size: 0.78rem;
  gap: 0.45rem;
  padding: 0.18rem;
  position: fixed;
  right: 18px;
  top: 14px;
  z-index: 30;
}

.language-setting > span {
  border: 0;
  clip: rect(0 0 0 0);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  white-space: nowrap;
  width: 1px;
}

.language-setting select {
  background: transparent;
  border: 0;
  border-radius: 999px;
  color: inherit;
  cursor: pointer;
  font: inherit;
  outline: 0;
  padding: 0.38rem 1.55rem 0.38rem 0.55rem;
}

body:not(.language-picker-visible) .language-setting {
  display: none;
}

body.language-picker-visible.player-ready .site-header {
  padding-right: 145px;
}

@media (min-width: 1101px) {
  body.language-picker-visible.player-ready .site-header {
    padding-right: 95px;
  }
}

@media (max-width: 700px) {
  .language-setting {
    right: 10px;
    top: 10px;
  }

  body.language-picker-visible.player-ready .site-header {
    padding-right: 105px;
  }
}