:root {
    --cream:      #FFF7E8;
    --paper:      #FFFCF2;
    --off:        #F4EEDB;
    --ink:        #15132B;
    --ink-soft:   #2A2748;
    --muted:      #6A6588;
    --brand:      #6C63FF;
    --brand-deep: #4A41D4;
    --sun:        #FFC233;
    --mustard:    #FFC233;
    --hot:        #FF4F8B;
    --teal:       #1FC8A9;
    --mint:       #6EE7CF;
    --coral:      #FF8966;
    --good:       #2ECC71;
    --bad:        #E74C3C;
    --signal-dim:   #2A2748;
    --signal-green: #2ECC71;
  }
  * { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
  html, body {
    margin: 0; padding: 0;
    min-height: 100vh;
    background: var(--cream);
    color: var(--ink);
    font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
    background-image:
      radial-gradient(circle at 12% 8%,  rgba(255, 79, 139, 0.10) 0, transparent 38%),
      radial-gradient(circle at 88% 20%, rgba(108, 99, 255, 0.12) 0, transparent 42%),
      radial-gradient(circle at 50% 95%, rgba(31, 200, 169, 0.10) 0, transparent 45%);
    background-attachment: fixed;
    overflow-x: hidden;
    user-select: none;
    -webkit-user-select: none;
  }
  body::before {
    content: "";
    position: fixed; inset: 0;
    background-image:
      radial-gradient(rgba(31, 27, 58, 0.05) 1px, transparent 1px),
      radial-gradient(rgba(31, 27, 58, 0.025) 1px, transparent 1px);
    background-size: 24px 24px, 16px 16px;
    background-position: 0 0, 12px 12px;
    pointer-events: none;
    z-index: 0;
  }
  body {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 22px 16px 60px;
  }
  .wrap {
    width: 100%;
    max-width: 600px;
    text-align: center;
    position: relative;
    z-index: 1;
  }

  /* ---- Top brand nav ---- */
  .topnav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 18px;
    gap: 12px;
    text-align: left;
  }
  .logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--ink);
  }
  .logo-mark {
    width: 38px; height: 38px;
    background: var(--ink);
    border-radius: 10px;
    display: grid;
    place-items: center;
    color: var(--sun);
    font-family: 'Fredoka', sans-serif;
    font-weight: 900;
    font-size: 22px;
    transform: rotate(-4deg);
    box-shadow: 3px 3px 0 var(--hot);
    flex-shrink: 0;
  }
  .logo-text {
    font-family: 'Fredoka', sans-serif;
    font-weight: 800;
    font-size: 17px;
    letter-spacing: -0.01em;
    line-height: 1;
  }
  .logo-text .dot-mark { color: var(--hot); }
  .logo-text .tld { color: var(--brand); }
  .back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--paper);
    border: 2.5px solid var(--ink);
    border-radius: 999px;
    padding: 7px 14px;
    color: var(--ink);
    text-decoration: none;
    font-family: 'Fredoka', sans-serif;
    font-weight: 700;
    font-size: 13px;
    box-shadow: 3px 3px 0 var(--ink);
    transition: transform 0.1s, box-shadow 0.1s;
    flex-shrink: 0;
  }
  .back-link:hover {
    transform: translate(-1px, -1px);
    box-shadow: 4px 4px 0 var(--ink);
  }
  .back-link:active {
    transform: translate(1px, 1px);
    box-shadow: 2px 2px 0 var(--ink);
  }

  /* ---- Header ---- */
  h1 {
    font-family: 'Fredoka', sans-serif;
    font-size: clamp(40px, 8vw, 64px);
    font-weight: 900;
    margin: 12px 0 4px;
    letter-spacing: 0.02em;
    line-height: 0.95;
    color: var(--ink);
    text-shadow: 4px 4px 0 var(--mustard), 8px 8px 0 var(--teal);
    transform: rotate(-1.5deg);
    display: inline-block;
  }
  h1 .dot { color: var(--hot); display: inline-block; transform: scale(1.3) translateY(2px); }
  .sub {
    margin-top: 18px;
    font-size: 13px; font-weight: 700;
    color: var(--brand);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 18px;
  }

  /* ---- Panel ---- */
  .panel {
    background: var(--paper);
    border: 3px solid var(--ink);
    border-radius: 22px;
    padding: 26px 24px 28px;
    box-shadow: 12px 12px 0 var(--ink);
    position: relative;
    text-align: left;
  }
  .panel::after {
    content: "";
    position: absolute;
    top: -12px; right: -12px;
    width: 52px; height: 52px;
    background: var(--mustard);
    transform: rotate(15deg);
    border: 3px solid var(--ink);
    border-radius: 12px;
    z-index: 0;
  }
  .panel::before {
    content: "DAILY";
    position: absolute;
    top: 10px; right: 0;
    z-index: 1;
    transform: rotate(15deg);
    font-family: 'Fredoka', sans-serif;
    font-size: 11px;
    font-weight: 900;
    letter-spacing: 0.1em;
    color: var(--ink);
  }

  /* ---- Status bar ---- */
  .status {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    font-family: 'Fredoka', sans-serif;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--brand);
    position: relative;
    z-index: 2;
    padding-right: 44px;
  }
  .status strong { color: var(--ink); font-weight: 800; }

  /* ---- Prompt ---- */
  .prompt {
    font-family: 'Fredoka', sans-serif;
    font-size: 17px;
    font-weight: 600;
    margin: 12px 0 18px;
    min-height: 24px;
    color: var(--ink);
    text-align: center;
    line-height: 1.4;
  }
  .prompt .accent { color: var(--hot); font-weight: 800; }
  .prompt em { color: var(--good); font-style: normal; font-weight: 800; }

  /* ---- Signal indicator ---- */
  .signal {
    width: 100%;
    max-width: 420px;
    margin: 0 auto 16px;
    aspect-ratio: 16 / 9;
    background: var(--signal-dim);
    border: 3px solid var(--ink);
    border-radius: 22px;
    box-shadow: 5px 5px 0 var(--ink);
    display: grid;
    place-items: center;
    overflow: hidden;
    user-select: none;
    position: relative;
    /* No background transition. Flash needs to be instant for honest reaction timing. */
  }
  .signal.green {
    background: var(--signal-green);
    animation: gFlash 0.18s ease-out;
  }
  .signal.disabled { opacity: 0.85; }
  @keyframes gFlash {
    from { transform: scale(0.92); }
    to   { transform: scale(1); }
  }
  .signal-label {
    font-family: 'Fredoka', sans-serif;
    font-weight: 900;
    font-size: clamp(48px, 10vw, 80px);
    color: var(--off);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    line-height: 1;
    pointer-events: none;
    opacity: 0.85;
  }
  .signal.green .signal-label {
    color: white;
    text-shadow: 0 3px 0 rgba(0,0,0,0.22);
    opacity: 1;
  }
  .signal.idle .signal-label,
  .signal.wait .signal-label {
    font-size: clamp(28px, 6vw, 44px);
    letter-spacing: 0.14em;
  }

  /* ---- Per-round result card ---- */
  .round-result {
    background: var(--ink);
    color: var(--cream);
    padding: 14px 22px;
    border-radius: 16px;
    margin: 4px auto 14px;
    border: 3px solid var(--ink);
    box-shadow: 4px 4px 0 var(--teal);
    font-family: 'Fredoka', sans-serif;
    text-align: center;
    transform: rotate(-1deg);
    max-width: 360px;
    width: fit-content;
    animation: rrPop 0.4s cubic-bezier(.34,1.56,.64,1);
  }
  .round-result.error { box-shadow: 4px 4px 0 var(--hot); }
  @keyframes rrPop {
    from { opacity: 0; transform: rotate(-1deg) scale(0.85); }
    to   { opacity: 1; transform: rotate(-1deg) scale(1); }
  }
  .round-result .rr-label {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--teal);
    margin-bottom: 4px;
  }
  .round-result.error .rr-label { color: var(--coral); }
  .round-result .rr-headline {
    font-size: 28px;
    font-weight: 900;
    color: var(--mustard);
    line-height: 1.1;
    margin-bottom: 4px;
    font-variant-numeric: tabular-nums;
  }
  .round-result.error .rr-headline { color: var(--hot); }
  .round-result .rr-sub {
    font-size: 14px;
    font-weight: 600;
    color: var(--cream);
  }
  .round-result .rr-sub .em { font-size: 18px; vertical-align: middle; margin-right: 4px; }

  /* ---- Buttons ---- */
  .btn {
    appearance: none;
    border: 3px solid var(--ink);
    background: var(--mustard);
    color: var(--ink);
    font-family: 'Fredoka', sans-serif;
    font-weight: 800;
    font-size: 16px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 13px 28px;
    border-radius: 999px;
    cursor: pointer;
    box-shadow: 4px 5px 0 var(--ink);
    transition: transform 0.08s ease, box-shadow 0.08s ease, background 0.2s;
    margin: 4px;
  }
  .btn:hover { transform: translate(-1px, -1px); box-shadow: 5px 6px 0 var(--ink); }
  .btn:active { transform: translate(2px, 3px); box-shadow: 1px 2px 0 var(--ink); }
  .btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: 4px 5px 0 var(--ink) !important;
  }
  .btn.primary { background: var(--hot); color: white; }
  .btn.go      { background: var(--good); color: white; }
  .btn.next    { background: var(--brand); color: white; }
  .btn.share   { background: var(--teal); color: white; }
  .btn.ghost   { background: var(--paper); color: var(--ink); }

  /* ---- Scoreline ---- */
  .scoreline {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin: 22px 0 8px;
    flex-wrap: wrap;
  }
  .scoreline > div {
    background: var(--cream);
    border: 2.5px solid var(--ink);
    border-radius: 14px;
    padding: 12px 16px;
    text-align: center;
    min-width: 90px;
    box-shadow: 3px 3px 0 var(--ink);
  }
  .scoreline .num {
    font-family: 'Fredoka', sans-serif;
    color: var(--ink);
    font-weight: 800;
    font-size: 20px;
    line-height: 1;
    display: block;
    margin-bottom: 4px;
  }
  .scoreline > div > div:last-child {
    font-size: 11px;
    font-weight: 700;
    color: var(--brand);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    font-family: 'Fredoka', sans-serif;
  }

  /* ---- Final score ---- */
  .final {
    padding: 8px 0;
    text-align: center;
  }
  .final .label {
    color: var(--brand);
    font-size: 12px;
    font-family: 'Fredoka', sans-serif;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
  }
  .final .bigscore-card {
    margin: 14px auto 8px;
    background: var(--ink);
    color: var(--cream);
    padding: 22px 28px 18px;
    border-radius: 22px;
    text-align: center;
    box-shadow: 6px 6px 0 var(--brand);
    transform: rotate(-1deg);
    border: 3px solid var(--ink);
    font-family: 'Fredoka', sans-serif;
    display: inline-block;
  }
  .final .bigscore {
    font-family: 'Fredoka', sans-serif;
    font-size: 64px;
    font-weight: 900;
    color: var(--mustard);
    line-height: 1;
    margin: 4px 0 6px;
    font-variant-numeric: tabular-nums;
    letter-spacing: 0.02em;
  }
  .final .flavor {
    color: var(--cream);
    font-size: 18px;
    font-weight: 800;
    margin-top: 6px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
  }
  .final .flavor-sub {
    color: var(--cream);
    font-size: 13px;
    font-weight: 600;
    margin-top: 4px;
    letter-spacing: 0.04em;
    opacity: 0.85;
  }
  .final .rounds {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 8px;
    margin: 24px 0;
  }
  .final .rounds .r {
    background: var(--cream);
    padding: 12px 4px;
    border-radius: 10px;
    border: 2.5px solid var(--ink);
    box-shadow: 3px 3px 0 var(--ink);
  }
  .final .rounds .r .rtitle {
    color: var(--brand);
    font-family: 'Fredoka', sans-serif;
    font-weight: 700;
    font-size: 11px;
    letter-spacing: 0.04em;
  }
  .final .rounds .r .remoji {
    font-size: 18px;
    line-height: 1;
    margin-top: 2px;
  }
  .final .rounds .r .rscore {
    font-family: 'Fredoka', sans-serif;
    font-weight: 800;
    color: var(--ink);
    font-size: 14px;
    margin-top: 4px;
    font-variant-numeric: tabular-nums;
  }

  .footer-note {
    margin-top: 18px;
    font-size: 12px;
    color: var(--brand);
    opacity: 0.85;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-align: center;
  }

  .btn-row {
    display: flex;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 18px;
  }

  /* ---- Tap-anywhere overlay ---- */
  #tap-overlay {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: transparent;
    cursor: pointer;
    display: none;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
  }
  #tap-overlay.active { display: block; }

  /* ---- Countdown (locked view) ---- */
  .countdown {
    margin: 10px auto;
    font-family: 'Fredoka', sans-serif;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--brand);
    text-align: center;
  }
  .countdown .time {
    display: inline-block;
    background: var(--ink);
    color: var(--mustard);
    padding: 5px 12px;
    border-radius: 999px;
    font-size: 15px;
    letter-spacing: 0.1em;
    margin-left: 6px;
    font-variant-numeric: tabular-nums;
  }

  /* ---- Toast ---- */
  .toast {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--ink);
    color: var(--cream);
    padding: 10px 18px;
    border-radius: 999px;
    font-weight: 700;
    font-family: 'Fredoka', sans-serif;
    font-size: 14px;
    letter-spacing: 0.04em;
    box-shadow: 3px 3px 0 var(--brand);
    opacity: 0;
    transform: translateX(-50%) translateY(20px);
    pointer-events: none;
    transition: opacity 0.3s, transform 0.3s;
    z-index: 1500;
  }
  .toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }

  @media (max-width: 480px) {
    .panel { padding: 22px 16px 24px; }
    .scoreline { gap: 10px; }
    .scoreline > div { padding: 10px 12px; min-width: 78px; }
    .final .bigscore { font-size: 52px; }
    .final .rounds { gap: 6px; }
    .final .rounds .r { padding: 10px 2px; }
  }