:root{--tile-bg:#fff;--tile-shadow:#e3dfee;--tile-text:#8d93a8;--active-bg:#ff8fb3;--active-shadow:#e0608c;--active-text:#fff;--glow-strong-bg:#ffe066;--glow-strong-shadow:#e6c33f;--glow-strong-text:#8a6d00;--glow-mid-bg:#fff3bf;--glow-mid-shadow:#ecdc9a;--glow-mid-text:#b59a30;--glow-weak-bg:#fffae3;--glow-weak-shadow:#f0e8c8;--glow-weak-text:#c4b78a;--panel-bg:#fff;--panel-shadow:#e8e4f0;--accent:#f4719c;--muted:#9aa0b5;--font-latin:"Fredoka", sans-serif;--font-ja:"Zen Maru Gothic", var(--font-latin), sans-serif}*{box-sizing:border-box}body{min-height:100dvh;font-family:var(--font-ja);color:var(--tile-text);touch-action:manipulation;-webkit-tap-highlight-color:transparent;background:linear-gradient(#fff7ec,#ffeef5) fixed;margin:0}button{font-family:inherit;font-size:inherit;cursor:pointer;color:inherit;background:0 0;border:none;padding:0}.start{max-width:420px;padding:32px 16px calc(32px + env(safe-area-inset-bottom));flex-direction:column;margin:0 auto;display:flex}.start-title{font-family:var(--font-latin);color:var(--accent);text-align:center;margin:16px 0 0;font-size:40px;font-weight:700}.start-sub{text-align:center;color:var(--muted);margin:6px 0 18px;font-size:14px}.picker{background:var(--panel-bg);box-shadow:0 4px 0 var(--panel-shadow);border-radius:16px;margin-top:14px;padding:14px}.label{font-family:var(--font-latin);letter-spacing:.12em;color:var(--muted);font-size:11px;font-weight:600}.key-grid{grid-template-columns:repeat(6,1fr);gap:6px;margin-top:10px;display:grid}.key-cell{font-family:var(--font-latin);color:var(--muted);background:#f1eefa;border-radius:10px;padding:9px 0;font-weight:600;transition:transform 80ms,box-shadow 80ms;box-shadow:0 3px #e0dcec}.key-cell.sel,.toggle.sel{background:var(--active-bg);color:var(--active-text);box-shadow:0 3px 0 var(--active-shadow)}.toggle-row{gap:8px;margin-top:10px;display:flex}.toggle{color:var(--muted);background:#f1eefa;border-radius:10px;flex:1;padding:10px 0;font-weight:700;transition:transform 80ms,box-shadow 80ms;box-shadow:0 3px #e0dcec}.genre-row{flex-wrap:wrap;gap:8px;margin-top:10px;display:flex}.toggle.genre{flex:none;padding:10px 16px}.key-cell:active,.toggle:active,.start-btn:active,.icon-btn:active{box-shadow:0 1px 0 var(--panel-shadow);transform:translateY(2px)}.start-btn{background:var(--active-bg);color:var(--active-text);box-shadow:0 4px 0 var(--active-shadow);border-radius:16px;margin-top:22px;padding:16px 0;font-size:16px;font-weight:700}.board-screen{max-width:480px;min-height:100dvh;padding:12px 12px calc(12px + env(safe-area-inset-bottom));flex-direction:column;margin:0 auto;display:flex}.topbar{align-items:center;gap:8px;display:flex}.chip{background:var(--panel-bg);box-shadow:0 3px 0 var(--panel-shadow);color:var(--muted);border-radius:999px;align-items:center;padding:7px 14px;font-size:13px;font-weight:700;display:inline-flex}.chip-accent{color:var(--accent)}.spacer{flex:1}.icon-btn{background:var(--panel-bg);width:38px;height:38px;box-shadow:0 3px 0 var(--panel-shadow);color:var(--muted);border-radius:12px;justify-content:center;align-items:center;font-size:16px;transition:transform 80ms,box-shadow 80ms;display:inline-flex}.board{--tile-size:clamp(44px, 14.5vw, 64px);flex-direction:column;flex:1;justify-content:center;gap:8px;display:flex}.hexrow{transform:translateX(calc((var(--tile-size) + 8px) / -4));justify-content:center;gap:8px;display:flex}.hexrow.offset{transform:translateX(calc((var(--tile-size) + 8px) / 4))}.tile,.tile-empty{width:var(--tile-size);height:var(--tile-size);flex:none}.tile{background:var(--tile-bg);color:var(--tile-text);box-shadow:0 4px 0 var(--tile-shadow);font-family:var(--font-latin);border-radius:30%;justify-content:center;align-items:center;font-size:clamp(13px,3.6vw,16px);font-weight:600;transition:transform 80ms,box-shadow 80ms,background-color .15s,color .15s;animation:.3s backwards tile-pop;display:flex}.tile:active{box-shadow:0 1px 0 var(--tile-shadow);transform:translateY(3px)}.tile.active{background:var(--active-bg);color:var(--active-text);box-shadow:0 4px 0 var(--active-shadow)}.tile.glow-strong{background:var(--glow-strong-bg);color:var(--glow-strong-text);box-shadow:0 4px 0 var(--glow-strong-shadow);animation:.3s backwards tile-pop,1.6s ease-in-out .3s infinite glow-pulse}.tile.glow-mid{background:var(--glow-mid-bg);color:var(--glow-mid-text);box-shadow:0 4px 0 var(--glow-mid-shadow)}.tile.glow-weak{background:var(--glow-weak-bg);color:var(--glow-weak-text);box-shadow:0 4px 0 var(--glow-weak-shadow)}@keyframes glow-pulse{0%,to{transform:scale(1)}50%{transform:scale(1.06)}}@keyframes tile-pop{0%{opacity:0;transform:scale(.6)}to{opacity:1;transform:scale(1)}}.strip{background:var(--panel-bg);box-shadow:0 4px 0 var(--panel-shadow);border-radius:14px;align-items:center;gap:6px;min-height:52px;margin-top:10px;padding:10px;display:flex;overflow-x:auto}.strip-empty{color:var(--muted);justify-content:center;font-size:13px}.prog-chip{font-family:var(--font-latin);color:var(--muted);background:#f1eefa;border-radius:9px;flex:none;padding:7px 10px;font-size:13px;font-weight:600}.prog-chip.now{background:var(--active-bg);color:var(--active-text);animation:.25s chip-bounce}@keyframes chip-bounce{50%{transform:scale(1.15)}}.controls{align-items:center;gap:12px;margin-top:10px;display:flex}.play-btn{background:var(--active-bg);width:52px;height:52px;color:var(--active-text);box-shadow:0 4px 0 var(--active-shadow);border-radius:50%;flex:none;font-size:18px;transition:transform 80ms,box-shadow 80ms}.play-btn:active{box-shadow:0 1px 0 var(--active-shadow);transform:translateY(2px)}.bpm-wrap{flex-direction:column;flex:1;gap:2px;display:flex}.bpm-wrap input[type=range]{width:100%;accent-color:var(--accent);margin:0}.bpm-label{font-family:var(--font-latin);color:var(--muted);font-size:11px;font-weight:600}.icon-btn.on{color:var(--accent)}.lib-link{color:var(--muted);align-self:center;margin-top:16px;font-size:13px;text-decoration:underline}.toast{left:50%;bottom:calc(24px + env(safe-area-inset-bottom));color:#fff;z-index:20;background:#5c5566;border-radius:999px;max-width:calc(100vw - 32px);padding:10px 18px;font-size:13px;font-weight:700;animation:.2s toast-in;position:fixed;transform:translate(-50%);box-shadow:0 4px 14px #5c556659}@keyframes toast-in{0%{opacity:0;transform:translate(-50%,8px)}}.modal-backdrop{z-index:10;background:#5c556659;justify-content:center;align-items:center;padding:16px;display:flex;position:fixed;inset:0}.modal{background:var(--panel-bg);box-shadow:0 6px 0 var(--panel-shadow);border-radius:20px;flex-direction:column;gap:10px;width:100%;max-width:380px;max-height:70dvh;padding:18px;display:flex;overflow-y:auto}.modal-title{color:#6b6477;margin:0;font-size:16px}.modal-empty{color:var(--muted);text-align:center;margin:18px 0;font-size:13px}.lib-item{align-items:center;gap:8px;display:flex}.lib-main{text-align:left;background:#f7f4fc;border-radius:12px;flex-direction:column;flex:1;gap:2px;padding:10px 12px;display:flex}.lib-name{color:#6b6477;font-weight:700}.lib-meta{color:var(--muted);font-size:11px}.modal-close{margin-top:6px}