:root {
    --bg: #F7F3EA; --card: #FFFFFF; --ink: #1B1810; --muted: #8C8371; --line: #ECE6D6;
    --accent: #E8604C; --accent-soft: #FCE3DC; --accent-deep: #B8402F;
    --green: #3F9163; --green-soft: #E1F0E6;
    --gold: #C99A2E; --gold-soft: #FBF0D6;
    --sans: 'Space Grotesk', system-ui, sans-serif;
    --mono: 'IBM Plex Mono', ui-monospace, Menlo, Consolas, monospace;
  }
  :root:not([data-theme="light"]), :root[data-theme="dark"] {
    --bg: #F7F3EA; --card: #FFFFFF; --ink: #1B1810; --muted: #8C8371; --line: #ECE6D6;
    --accent: #E8604C; --accent-soft: #FCE3DC; --accent-deep: #B8402F;
    --green: #3F9163; --green-soft: #E1F0E6; --gold: #C99A2E; --gold-soft: #FBF0D6;
  }
  * { box-sizing: border-box; }
  html { height: 100%; scroll-padding-top: env(safe-area-inset-top, 0px); }
  body {
    margin: 0; min-height: 100%; background: var(--bg); color: var(--ink);
    font-family: var(--sans); overflow-x: hidden;
    padding: calc(40px + env(safe-area-inset-top, 0px)) 20px calc(45px + env(safe-area-inset-bottom, 0px));
    display: flex; justify-content: center;
  }
  .wrap { width: 100%; max-width: 530px; }
 
  .top { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 20px; }
  h1 { font-size: 40px; font-weight: 700; margin: 0; letter-spacing: -0.01em; }
  h1 span {color: var(--accent);}
  .sub {font-family: var(--mono); font-size: 12.5px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em;}

    .tabs {display: flex; gap: 7px; margin-bottom: 20px;}
    .tab {
    flex: 1; font-family: var(--sans); font-size: 15px; font-weight: 600; text-align: center;
    padding: 10px 0; border-radius: 14px; border: none; cursor: pointer;
    background-color: var(--card); color: var(--muted);
    }
    .tab.active {background-color: var(--ink); color: var(--bg);}

    .statline {display: flex; justify-content: space-between; align-items: center; font-family: var(--mono); font-size: 13px; color: var(--muted); margin-bottom: 12px; flex-wrap: wrap; gap: 7px;}
    .pills {display: flex; gap: 7px; flex-wrap: wrap; align-items: center;}
    .pill {background-color: var(--card); border: 1px solid var(--line); border-radius: 22px; padding: 6px 12px;}
    .pill b {color: var(--ink);}
    .hearts {letter-spacing: 3px; color: var(--accent); font-size: 22px; display: inline-flex; align-items: center;}
    .hearts .empty {color: var(--muted);}
    .level-badge {background: var(--accent-soft); color: var(--accent-deep); border-radius: 22px; padding: 6px 14px; font-weight: 600;}

    .progress-wrap {margin-bottom: 18px;}
    .progress-label {font-family: var(--mono); font-size: 12px; color: var(--muted); margin-bottom: 6px;}
    .progress-track {height: 6px; background: var(--line); border-radius: 5px; overflow: hidden;}
    .progress-fill { height: 100%; background-color: var(--accent); border-radius: 5px; transition: width 0.3s ease;}

    .card {background: var(--card); border-radius: 25px; box-shadow: 0 1px 3px rgba(27,24,16,0.04), 0 12px 35px rgba(27,24,16,0.06); padding: 25px 25px 22px; margin-bottom: 18px; position: relative;}
    .card-top {display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 16px; gap: 12px;}
    .prompt {font-size: 16px; color: var(--muted); margin: 0; line-height: 1.5; flex: 1; min-width: 0;}
    .timer {font-family: var(--mono); font-size: 15px; color: var(--gold); background: var(--gold-soft); border-radius: 12px; padding: 5px 11px; white-space: nowrap; flex-shrink: 0;}

    .grid {display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 5px;}
    .cell {aspect-ratio: 1; background: var(--bg); border-radius: 16px; display: flex; align-items: center;justify-content: center; flex-wrap: wrap; gap: 3px; padding: 7px;}
    .cell .g {line-height: 1;}
    .cell.c1 .g {font-size: 34px;} .cell.c2 .g {font-size: 24px;} .cell.c3 .g {font-size: 18px;}
    .cell.missing {background: var(--accent-soft); color: var(--accent); font-family: var(--mono); font-size: 23px; font-weight: 700; border: 2px dashed var(--accent); animation: pulse 1.8s ease-in-out infinite;}
    @keyframes pulse {0%, 100% {opacity: 1;} 50% {opacity: 0.55;}}

    .hint-row {display: flex; align-items: center; justify-content: space-between; margin: 16px 0 5px;}
    .hint-btn {font-family: var(--sans); font-size: 14px; font-weight: 600; background: var(--gold-soft); color: var(--gold); border: none; border-radius: 12px; padding: 9px 14px; cursor: pointer;}
    .hint-btn:disabled {opacity: 0.4; cursor: default;}
    .hint-note {font-family: var(--mono); font-size: 12px; color: var(--muted);}
    .revealed {display: flex; gap: 7px; margin-top: 9px; flex-wrap: wrap;}
    .revealed .chip {font-family: var(--mono); font-size: 12.5px; background: var(--bg); border-radius: 9px; padding: 5px 9px; display: flex; align-items: center; gap: 5px;}

    .choices-label {font-family: var(--mono); font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 14px;}
    .choices {display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px;}
    .choice {aspect-ratio: 1; background: var(--card); border: 2px solid var(--line); border-radius: 16px; display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 3px; padding: 7px; cursor: pointer; font-family: var(--sans); box-shadow: 0 1px 2px rgba(27,24,16,0.04), 0 6px 16px rgba(27,24,16,0.05);}
    .choice .g {line-height: 1;}
    .choice.c1 .g {font-size: 29px;} .choice.c2 .g {font-size: 20px;} .choice.c3 .g {font-size: 15px;}
    .choice:hover:not(:disabled) {border-color: var(--accent);}
    .choice:focus-visible {outline: none; border-color: var(--accent);}
    .choice:disabled {cursor: default;}
    .choice.correct {background: var(--green-soft); border-color: var(--green);}
    .choice.wrong {background: var(--accent-soft); border-color: var(--accent); opacity: 0.5;}

    .feedback { display: none; align-items: flex-start; gap: 9px; font-size: 14px; line-height: 1.5; border-radius: 13px; padding: 13px 15px; margin: 16px 0; }
    .feedback.show { display: flex; }
    .feedback.hint { background: var(--accent-soft); color: var(--accent-deep); }
    .feedback.solved { background: var(--green-soft); color: var(--green); }
    .feedback.over { background: var(--ink); color: var(--bg); }

    .next-btn { display: none; width: 100%; border: none; background: var(--ink); color: var(--bg); font-family: var(--sans); font-size: 16px; font-weight: 600; padding: 16px 0; border-radius: 16px; cursor: pointer; }
    .copy-btn { width: 100%; border: none; background: var(--ink); color: var(--bg); font-family: var(--sans); font-size: 16px; font-weight: 600; padding: 15px 0; border-radius: 16px; cursor: pointer; margin-top: 7px; }
    .next-btn.show {display: block;}
    .next-btn:hover {background: var(--accent-deep);}
    .daily-summary {text-align: center;}
    .emoji-row {font-size: 34px; letter-spacing: 7px; margin: 16px 0;}

    .copy-btn.copied {background: var(--green);}
    footer{margin-top: 25px; font-family: var(--mono); font-size: 12px; color: var(--muted); text-align: center;}

    .confetti { position: fixed; top: -12px; width: 9px; height: 9px; border-radius: 2px; pointer-events: none; z-index: 999; animation: confetti-fall linear forwards; }
    @keyframes confetti-fall { to { transform: translateY(110vh) translateX(var(--dx)) rotate(var(--rot)); opacity: 0.3; } }

    @media (max-width: 360px) { h1 { font-size: 32px; } .card { padding: 20px 18px 18px; } }