*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #1a1a2e;--surface: #16213e;--tile-bg: #0f3460;--tile-border: #1a4a7a;--accent: #7c5cbf;--accent-hover:#9370db;--text: #e8e8f0;--text-muted: #8888aa;--danger: #e05e5e;--success: #5eba7d;--shadow: 0 2px 8px rgba(0,0,0,.4);--half-low: #3a8c8c;--half-high: #b07830;--parity-odd: #7c5cbf;--parity-even: #3a8c8c;--tile-height: 60px;--font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif}html{font-family:var(--font);font-size:16px;background:var(--bg);color:var(--text);min-height:100%}body{min-height:100vh;display:flex;flex-direction:column;align-items:center}#app{width:100%;max-width:420px;padding:0 16px;display:flex;flex-direction:column;min-height:100vh}#header{display:flex;align-items:center;justify-content:center;position:relative;padding:16px 0 12px;border-bottom:1px solid rgba(255,255,255,.08);margin-bottom:20px}#title{font-size:1.5rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--text)}#help-btn,#stats-btn{position:absolute;width:28px;height:28px;border-radius:50%;border:1.5px solid var(--text-muted);background:transparent;color:var(--text-muted);font-size:.875rem;font-weight:600;cursor:pointer;display:flex;align-items:center;justify-content:center;padding:0;transition:border-color .15s,color .15s}#help-btn{right:0}#stats-btn{left:0}#help-btn:hover,#stats-btn:hover{border-color:var(--text);color:var(--text)}#stats-btn svg{width:14px;height:14px}#main{flex:1;display:flex;flex-direction:column;gap:16px}#tile-container{flex-shrink:0}#tile-list{list-style:none;display:flex;flex-direction:column;gap:8px;position:relative}.tile{height:var(--tile-height);background:var(--tile-bg);border:1px solid var(--tile-border);border-radius:10px;display:flex;align-items:center;justify-content:space-between;padding:0 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80ms}.btn:active{transform:scale(.97)}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover)}.btn-accent{background:var(--success);color:#fff}.btn-accent:hover{background:#6dd494}.btn-ghost{background:transparent;color:var(--text-muted);border:1.5px solid var(--text-muted);padding:10px 24px;font-size:.875rem}.btn-ghost:hover{color:var(--text);border-color:var(--text)}.btn-text-link{background:none;border:none;color:var(--text-muted);font-family:var(--font);font-size:.8rem;cursor:pointer;padding:4px 0;text-decoration:underline;text-underline-offset:2px;transition:color .15s}.btn-text-link:hover{color:var(--text)}.reveal-actions{display:flex;flex-direction:column;align-items:center;gap:8px;width:100%}.feedback-msg{font-size:.875rem;color:var(--danger);text-align:center;min-height:1.2em;transition:opacity .3s ease}.feedback-msg.hidden{opacity:0;pointer-events:none}.feedback-msg.visible{opacity:1}#reveal-container{padding-top:8px}.reveal-panel{background:var(--surface);border:1px solid rgba(255,255,255,.08);border-radius:12px;padding:24px 20px;display:flex;flex-direction:column;align-items:center;gap:8px;animation:fadeIn .3s ease}.reveal-solved{font-size:1rem;color:var(--text-muted)}.reveal-rule-label{font-size:.8rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em}.reveal-rule-name{font-size:1.25rem;font-weight:700;color:var(--text);text-align:center}.reveal-cycle-text{font-size:.875rem;color:var(--text-muted);text-align:center;line-height:1.6;word-break:break-word}.copied-msg{font-size:.8rem;color:var(--success);margin-top:2px}.copied-msg.hidden{visibility:hidden}.already-played{background:var(--surface);border:1px solid rgba(255,255,255,.08);border-radius:12px;padding:24px 20px;display:flex;flex-direction:column;gap:10px;align-items:center;text-align:center}.already-played p{font-size:.95rem;color:var(--text-muted)}.already-played strong{color:var(--text)}.next-puzzle-hint{font-size:.8rem!important;margin-top:4px}.error-msg,.no-puzzle-msg{text-align:center;color:var(--text-muted);font-size:.95rem;padding:40px 0}.modal{position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;display:flex;align-items:center;justify-content:center}.modal.hidden{display:none}.modal-backdrop{position:absolute;top:0;right:0;bottom:0;left:0;background:#0009}.modal-content{position:relative;background:var(--surface);border:1px solid rgba(255,255,255,.1);border-radius:16px;padding:28px 24px;max-width:340px;width:calc(100% - 32px);display:flex;flex-direction:column;gap:12px;box-shadow:0 16px 48px #0009}.modal-content h2{font-size:1.2rem;font-weight:700;color:var(--text)}.modal-content p{font-size:.9rem;color:var(--text-muted);line-height:1.6}.modal-close{position:absolute;top:12px;right:14px;background:transparent;border:none;color:var(--text-muted);font-size:1rem;cursor:pointer;padding:4px 6px}.modal-close:hover{color:var(--text)}.tile-list--readonly .tile{cursor:default;pointer-events:none}.tile-list--readonly .tile-handle{display:none}.hint-panel{background:#ffffff0a;border:1px solid rgba(255,255,255,.09);border-radius:8px;padding:10px 16px;font-size:.85rem;color:var(--text-muted);text-align:center;line-height:1.5}.hint-panel em{color:var(--text);font-style:normal;font-weight:600}.reveal-demo{width:100%;padding:4px 0}.reveal-cycle{display:flex;flex-wrap:wrap;align-items:baseline;gap:2px 0;justify-content:center;font-size:.9rem;line-height:1.8}.reveal-word{white-space:nowrap;color:var(--text)}.reveal-highlight-letter,.reveal-highlight-vowel{font-weight:700;color:var(--accent-hover)}.reveal-half-low{display:inline-block;padding:0 3px;border-radius:3px;background:#3a8c8c40;color:var(--half-low);font-weight:700}.reveal-half-high{display:inline-block;padding:0 3px;border-radius:3px;background:#b0783040;color:var(--half-high);font-weight:700}.reveal-count{font-size:.75em;opacity:.65;font-weight:400}.reveal-ring-wrap{display:flex;justify-content:center;margin-top:10px}.reveal-alphabet-ring{display:block;overflow:visible}.reveal-arrow{color:var(--text-muted);opacity:.5}.reveal-caption{font-size:.8rem;color:var(--text-muted);text-align:center;margin-top:8px;line-height:1.5}.reveal-legend{display:flex;flex-wrap:wrap;justify-content:center;gap:6px 10px;margin-top:6px}.reveal-legend-item{font-size:.8rem;font-weight:600}.reveal-anagram-char{display:inline-block;color:var(--accent-hover);font-weight:700}.reveal-compound-label{display:inline-block;font-size:.65em;color:var(--text-muted);vertical-align:super;margin:0 2px;white-space:nowrap}.reveal-compound-legend{margin-top:8px;text-align:center;line-height:1.8}.reveal-compound-item{display:inline-block;font-size:.8rem;font-weight:600;color:var(--text-muted);margin:0 4px}.stats-modal-content{max-height:90vh;overflow-y:auto;gap:20px}.stats-headline{display:flex;flex-direction:column;align-items:center;gap:4px;padding:4px 0 8px}.stats-headline-number{font-size:3.5rem;font-weight:700;color:var(--text);line-height:1}.stats-headline-label{font-size:.65rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--text-muted)}.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;width:100%}.stats-cell{display:flex;flex-direction:column;align-items:center;gap:4px;padding:10px 4px;background:#ffffff0a;border-radius:8px}.stats-cell-number{font-size:1.5rem;font-weight:700;color:var(--text);line-height:1}.stats-cell-label{font-size:.6rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted);text-align:center;line-height:1.3}.stats-chart{display:flex;flex-direction:column;gap:5px;width:100%}.chart-row{display:flex;align-items:center;gap:6px}.chart-label{width:26px;text-align:right;font-size:.8rem;font-weight:600;color:var(--text-muted);flex-shrink:0}.chart-track{flex:1;height:22px;display:flex;align-items:center}.chart-bar{height:100%;border-radius:3px;background:var(--tile-border);min-width:3px;transition:width 0ms}.chart-bar--today{background:var(--accent)}.chart-count{width:24px;text-align:left;font-size:.8rem;color:var(--text-muted);flex-shrink:0}.stats-empty{font-size:.85rem;color:var(--text-muted);text-align:center;padding:8px 0;line-height:1.5}@keyframes fadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}