:root{--bg: #f3ecdc;--bg-1: #fbf6e9;--bg-2: #efe6d0;--bg-sunken: #e6dcc3;--bg-side: #2a2a22;--text: #2a2520;--text-soft: #4d4338;--text-dim: #7a6d5d;--text-faint: #a89c89;--border: rgba(60, 45, 25, .13);--border-strong: rgba(60, 45, 25, .22);--accent: #5e7c4d;--accent-soft: rgba(94, 124, 77, .14);--accent-hover: #4d6940;--heart: #b85a3b;--heart-soft: rgba(184, 90, 59, .1);--success: #5e7c4d;--success-bg: rgba(94, 124, 77, .14);--warn: #b3793a;--warn-bg: rgba(179, 121, 58, .16);--danger: #a3463a;--danger-bg: rgba(163, 70, 58, .12);--shadow-sm: 0 1px 2px rgba(40, 30, 15, .06);--shadow: 0 4px 18px rgba(40, 30, 15, .1);--shadow-lg: 0 16px 40px rgba(40, 30, 15, .18);--r-sm: 4px;--r: 8px;--r-lg: 12px;--r-xl: 16px;--r-pill: 999px;--nav-w: 232px;--font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--font-display: "Fraunces", Georgia, "Times New Roman", serif;--font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;--t-xs: 11px;--t-sm: 13px;--t-md: 14px;--t-lg: 16px;--t-xl: 20px;--t-2xl: 26px;--t-3xl: 34px;--t-4xl: 44px;--sheet-size-0: 14px;--sheet-size-1: 17px;--sheet-size-2: 21px;--ease: cubic-bezier(.4, 0, .2, 1);--ease-out: cubic-bezier(0, 0, .2, 1);--t-fast: .14s;--t-mid: .24s;--t-slow: .42s}:root[data-theme=dark]{--bg: #1a1812;--bg-1: #25221b;--bg-2: #2d2920;--bg-sunken: #15130d;--bg-side: #100e08;--text: #ede4d3;--text-soft: #c4b89f;--text-dim: #8e8270;--text-faint: #5c5345;--border: rgba(255, 235, 200, .08);--border-strong: rgba(255, 235, 200, .18);--accent: #8aab7a;--accent-soft: rgba(138, 171, 122, .16);--accent-hover: #9bbc8a;--heart: #d57956;--heart-soft: rgba(213, 121, 86, .14);--success-bg: rgba(138, 171, 122, .16);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);--shadow: 0 8px 24px rgba(0, 0, 0, .45);--shadow-lg: 0 24px 60px rgba(0, 0, 0, .6)}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}button{font:inherit;cursor:pointer}input,select,textarea{font:inherit;color:inherit}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}code{font-family:var(--font-mono);font-size:.9em}::selection{background:var(--accent-soft);color:var(--text)}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:999px;border:2px solid transparent;background-clip:padding-box}::-webkit-scrollbar-thumb:hover{background:var(--text-faint);border:2px solid transparent;background-clip:padding-box}.app-shell{display:flex;min-height:100vh;background:var(--bg)}.main-area{flex:1;min-width:0;overflow-y:auto;position:relative}.nav-sidebar{width:var(--nav-w);flex:0 0 var(--nav-w);background:var(--bg-side);color:#f5ebd7e0;display:flex;flex-direction:column;position:sticky;top:0;height:100vh;border-right:1px solid rgba(245,235,215,.05)}.nav-brand{padding:22px 22px 18px;display:flex;align-items:center;gap:10px}.brand-mark{width:30px;height:30px;border-radius:8px;background:var(--accent);display:inline-flex;align-items:center;justify-content:center;color:var(--bg-1);font-family:var(--font-display);font-size:18px;font-weight:700}.brand-text{font-family:var(--font-display);font-size:19px;font-weight:600;letter-spacing:-.01em;color:#f5ebd7f5}.nav-list{display:flex;flex-direction:column;padding:4px 10px 10px}.nav-section{font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.12em;color:#f5ebd766;padding:18px 12px 6px}.nav-link{background:transparent;border:0;color:#f5ebd7b3;display:flex;align-items:center;gap:12px;padding:9px 12px;border-radius:var(--r);font-size:14px;font-weight:500;cursor:pointer;text-align:left;transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease)}.nav-link:hover{background:#f5ebd70f;color:#f5ebd7f2}.nav-link-active{background:#f5ebd714;color:#f5ebd7f5;box-shadow:inset 3px 0 0 var(--accent)}.nav-lock{margin-left:auto;color:#f5ebd74d}.nav-import{margin:16px 14px 0;background:var(--accent);color:var(--bg-1);border:0;border-radius:var(--r);padding:10px 14px;display:flex;align-items:center;justify-content:center;gap:8px;font-size:14px;font-weight:600;cursor:pointer;transition:background var(--t-fast) var(--ease),transform var(--t-fast) var(--ease)}.nav-import:hover{background:var(--accent-hover);transform:translateY(-1px)}.nav-import:active{transform:translateY(0)}.nav-footer{margin-top:auto;padding:14px;border-top:1px solid rgba(245,235,215,.05)}.nav-offline{font-size:11px;color:#f5ebd74d;text-transform:uppercase;letter-spacing:.08em}.mobile-menu-btn{display:none;position:fixed;top:16px;left:16px;z-index:30;width:42px;height:42px;background:var(--bg-1);color:var(--text);border:1px solid var(--border);border-radius:var(--r);align-items:center;justify-content:center;box-shadow:var(--shadow);cursor:pointer}.nav-backdrop{display:none}.page{max-width:1200px;margin:0 auto;padding:32px clamp(20px,4vw,48px) 96px;animation:page-in var(--t-mid) var(--ease-out)}.page-narrow{max-width:720px}@keyframes page-in{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}.page-header{display:flex;align-items:flex-start;gap:16px;margin-bottom:28px}.page-header h1{font-family:var(--font-display);font-size:var(--t-3xl);font-weight:600;letter-spacing:-.015em;margin:0 0 6px;line-height:1.1;color:var(--text)}.page-sub{margin:0;color:var(--text-dim);font-size:var(--t-md);line-height:1.5}.page-header-actions{margin-left:auto;display:flex;gap:8px;align-items:center}.browse-hero{position:relative;border-radius:var(--r-xl);padding:40px 36px 36px;margin-bottom:32px;overflow:hidden;background:var(--bg-1);border:1px solid var(--border);box-shadow:var(--shadow-sm)}.browse-hero:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(circle 1px at 20% 30%,rgba(60,45,25,.1) 1px,transparent 1px),radial-gradient(circle 1px at 70% 60%,rgba(60,45,25,.08) 1px,transparent 1px),radial-gradient(circle 1px at 40% 80%,rgba(60,45,25,.1) 1px,transparent 1px);background-size:24px 24px,32px 32px,28px 28px;pointer-events:none;opacity:.5}.browse-hero>*{position:relative}.browse-hero-eyebrow{font-family:var(--font-display);font-style:italic;font-size:var(--t-sm);font-weight:500;color:var(--accent);margin-bottom:10px}.browse-hero h1{font-family:var(--font-display);font-size:clamp(28px,4vw,var(--t-4xl));font-weight:600;letter-spacing:-.015em;margin:0 0 10px;line-height:1.05;color:var(--text)}.browse-hero p{margin:0;color:var(--text-soft);font-size:var(--t-lg);line-height:1.6;max-width:560px}.section-h{font-family:var(--font-display);font-size:var(--t-xl);font-weight:600;letter-spacing:-.01em;margin:36px 0 14px;display:flex;align-items:baseline;gap:12px;color:var(--text)}.section-h:before{content:"";width:24px;height:1px;background:var(--text-faint);display:inline-block;transform:translateY(-4px)}.section-h-sub{font-family:var(--font-sans);font-size:var(--t-xs);color:var(--text-dim);font-weight:500;letter-spacing:.06em;text-transform:uppercase;font-style:normal}.filter-bar{display:flex;align-items:center;gap:10px;margin-bottom:16px;flex-wrap:wrap}.filter-search{flex:1;min-width:200px;display:flex;align-items:center;gap:8px;background:var(--bg-1);border:1px solid var(--border);border-radius:var(--r-pill);padding:0 12px 0 16px;height:42px;transition:border-color var(--t-fast) var(--ease),box-shadow var(--t-fast) var(--ease)}.filter-search:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.filter-search svg{color:var(--text-faint);flex-shrink:0}.filter-search input{flex:1;min-width:0;background:transparent;border:0;outline:0;padding:0;font-size:var(--t-md);color:var(--text);height:100%}.filter-search input::placeholder{color:var(--text-faint)}.filter-clear{border:0;background:transparent;color:var(--text-faint);padding:4px;border-radius:50%;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}.filter-clear:hover{color:var(--text);background:var(--bg-sunken)}.filter-sort{display:inline-flex;align-items:center;gap:8px;background:var(--bg-1);border:1px solid var(--border);border-radius:var(--r-pill);padding:0 14px;height:42px}.filter-sort-label{font-size:var(--t-xs);color:var(--text-dim);text-transform:uppercase;letter-spacing:.08em;font-weight:600}.filter-sort select{background:transparent;border:0;outline:0;font-size:var(--t-sm);font-weight:500;color:var(--text);cursor:pointer;padding:4px 18px 4px 0;-moz-appearance:none;appearance:none;-webkit-appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--text-dim) 50%),linear-gradient(135deg,var(--text-dim) 50%,transparent 50%);background-position:calc(100% - 8px) center,calc(100% - 4px) center;background-size:4px 4px,4px 4px;background-repeat:no-repeat}.filter-chips{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:24px}.chip{background:transparent;border:1px solid var(--border);border-radius:var(--r-pill);padding:6px 12px;font-size:var(--t-sm);color:var(--text-dim);cursor:pointer;font-weight:500;transition:color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease),background var(--t-fast) var(--ease)}.chip:hover{color:var(--text);border-color:var(--border-strong);background:var(--bg-1)}.chip-active{background:var(--accent);color:var(--bg-1);border-color:var(--accent)}.chip-clear{display:inline-flex;align-items:center;gap:4px;color:var(--text-dim);border-style:dashed}.chip-clear:hover{color:var(--danger);border-color:var(--danger);background:transparent}.search-row{display:flex;align-items:center;gap:12px;margin-bottom:20px;flex-wrap:wrap}.search-input{flex:1;min-width:240px}.search-input input{width:100%;background:var(--bg-1);border:1px solid var(--border);border-radius:var(--r);padding:11px 16px;font-size:var(--t-md);color:var(--text);transition:border-color var(--t-fast) var(--ease),box-shadow var(--t-fast) var(--ease)}.search-input input:focus{outline:0;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.sort-select{display:flex;align-items:center;gap:8px}.sort-select label{font-size:var(--t-xs);color:var(--text-dim);text-transform:uppercase;letter-spacing:.08em;font-weight:600}.sort-select select{background:var(--bg-1);border:1px solid var(--border);border-radius:var(--r);padding:9px 14px;color:var(--text);font-size:var(--t-sm);font-weight:500;cursor:pointer}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px}.card{position:relative;background:var(--bg-1);border:1px solid var(--border);border-radius:var(--r-lg);padding:16px 18px;cursor:pointer;transition:transform var(--t-fast) var(--ease),box-shadow var(--t-mid) var(--ease),border-color var(--t-fast) var(--ease);display:flex;flex-direction:column;gap:4px}.card:hover{transform:translateY(-1px);box-shadow:var(--shadow);border-color:var(--border-strong)}.card-title{font-weight:600;font-size:var(--t-md);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--text);padding-right:60px}.card-artist{color:var(--text-dim);font-size:var(--t-sm);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.card-foot{margin-top:10px;display:flex;flex-wrap:wrap;gap:4px}.card-pill{font-size:var(--t-xs);font-weight:500;background:var(--bg-sunken);border:1px solid transparent;border-radius:var(--r-pill);padding:2px 8px;color:var(--text-dim);display:inline-flex;align-items:center;gap:4px}.card-pill-key{color:var(--accent);background:var(--accent-soft);font-family:var(--font-mono);font-weight:600}.card-pill-public{background:var(--success-bg);color:var(--success)}.card-pill-private{background:var(--danger-bg);color:var(--danger)}.card-pill-demo{background:var(--text-dim);color:var(--bg)}.card-vis-private{background:var(--danger-bg);color:var(--danger)}.card-vis-listed{background:var(--warn-bg);color:var(--warn)}.card-vis-public{background:var(--accent-soft);color:var(--accent)}.card-vis-open{background:var(--success-bg);color:var(--success)}.card-actions-row{position:absolute;top:12px;right:12px;display:flex;gap:4px;align-items:center;z-index:2}.card-delete{position:relative;width:28px;height:28px;border:0;background:transparent;color:var(--text-faint);border-radius:var(--r);display:inline-flex;align-items:center;justify-content:center;opacity:0;transition:opacity var(--t-fast) var(--ease),color var(--t-fast) var(--ease),background var(--t-fast) var(--ease)}.card:hover .card-delete{opacity:1}.card-delete:hover{color:var(--danger);background:var(--bg-sunken)}.card .card-actions-row .heart-btn,.card .card-actions-row .more-wrap{opacity:0;transition:opacity var(--t-fast) var(--ease)}.card:hover .card-actions-row .heart-btn,.card:hover .card-actions-row .more-wrap,.card:focus-within .card-actions-row .heart-btn,.card:focus-within .card-actions-row .more-wrap{opacity:1}.card .card-actions-row .heart-btn-on{opacity:1}@media(hover:none){.card .card-actions-row .heart-btn,.card .card-actions-row .more-wrap,.card .card-actions-row .card-delete{opacity:1!important}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.skel{background:linear-gradient(90deg,var(--bg-sunken) 0%,var(--bg-1) 50%,var(--bg-sunken) 100%);background-size:200% 100%;animation:shimmer 1.4s linear infinite;border-radius:var(--r-sm)}.skel-card{border-radius:var(--r-lg);background:var(--bg-1);border:1px solid var(--border);padding:18px 16px;display:flex;flex-direction:column;gap:10px}.skel-line{height:14px}.skel-line-2{width:60%;height:12px}.page-empty{text-align:center;padding:80px 24px;color:var(--text-dim);background:var(--bg-1);border:1px dashed var(--border-strong);border-radius:var(--r-lg)}.page-empty h2,.page-empty h3{font-family:var(--font-display);color:var(--text);margin:0 0 8px;font-size:var(--t-xl);font-weight:600;letter-spacing:-.01em}.page-empty p{margin:0;font-size:var(--t-md);line-height:1.5}.page-empty .primary-btn{margin-top:20px}.list-empty{padding:24px 12px;color:var(--text-dim);font-size:var(--t-sm);text-align:center}.list-error{padding:16px;color:var(--danger);font-size:var(--t-sm)}.banner{display:flex;align-items:center;gap:12px;padding:12px 16px;border-radius:var(--r);margin-bottom:16px;font-size:var(--t-md);background:var(--bg-1);border:1px solid var(--border)}.banner-info{background:var(--accent-soft);border-color:#5e7c4d40;color:var(--text)}.banner .primary-btn{padding:7px 14px;font-size:var(--t-sm);margin-left:auto}.primary-btn{background:var(--accent);color:var(--bg-1);border:0;padding:10px 16px;border-radius:var(--r);font-weight:600;font-size:var(--t-sm);display:inline-flex;align-items:center;justify-content:center;gap:8px;cursor:pointer;transition:background var(--t-fast) var(--ease),transform var(--t-fast) var(--ease)}.primary-btn:hover:not(:disabled){background:var(--accent-hover);transform:translateY(-1px)}.primary-btn:active{transform:translateY(0)}.primary-btn:disabled{opacity:.5;cursor:not-allowed}.ghost-btn{background:var(--bg-1);color:var(--text);border:1px solid var(--border);padding:9px 14px;border-radius:var(--r);font-weight:500;font-size:var(--t-sm);display:inline-flex;align-items:center;gap:6px;cursor:pointer;transition:border-color var(--t-fast) var(--ease),background var(--t-fast) var(--ease)}.ghost-btn:hover{border-color:var(--border-strong);background:var(--bg-2)}.ghost-btn.danger{color:var(--danger);border-color:var(--danger);background:transparent}.ghost-btn.danger:hover{background:var(--danger);color:var(--bg-1)}.text-btn{background:transparent;border:0;color:var(--accent);font-size:var(--t-sm);cursor:pointer;padding:0;font-weight:500}.text-btn:hover{text-decoration:underline}.pill-btn{background:var(--bg-1);color:var(--text-dim);border:1px solid var(--border);padding:7px 14px;border-radius:var(--r-pill);font-size:var(--t-sm);font-weight:500;cursor:pointer;transition:color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease),background var(--t-fast) var(--ease)}.pill-btn:hover{color:var(--text);border-color:var(--border-strong)}.pill-btn-on{background:var(--accent);color:var(--bg-1);border-color:var(--accent)}.pill-btn-on:hover{color:var(--bg-1)}.icon-btn{width:34px;height:34px;border:0;background:transparent;color:var(--text-dim);border-radius:var(--r);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease)}.icon-btn:hover:not(:disabled){background:var(--bg-sunken);color:var(--text)}.icon-btn:disabled{opacity:.35;cursor:not-allowed}.step-btn{width:30px;height:30px;border:1px solid var(--border);background:var(--bg-1);color:var(--text);border-radius:var(--r);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:border-color var(--t-fast) var(--ease),background var(--t-fast) var(--ease),color var(--t-fast) var(--ease)}.step-btn:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}.step-btn:disabled{opacity:.35;cursor:not-allowed}.play-btn{width:38px;height:38px;border:0;background:var(--accent);color:var(--bg-1);border-radius:50%;display:inline-flex;align-items:center;justify-content:center;transition:background var(--t-fast) var(--ease),transform var(--t-fast) var(--ease)}.play-btn:hover{background:var(--accent-hover);transform:scale(1.04)}.tab-row{display:flex;gap:4px;border-bottom:1px solid var(--border);margin-bottom:20px}.tab{background:transparent;border:0;padding:12px 16px;font-size:var(--t-md);font-weight:500;color:var(--text-dim);cursor:pointer;position:relative;transition:color var(--t-fast) var(--ease)}.tab:hover,.tab-active{color:var(--text)}.tab-active:after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--accent);border-radius:2px 2px 0 0}.player{display:flex;flex-direction:column;height:100vh}.controls{position:sticky;top:0;z-index:10;background:#fbf6e9d9;backdrop-filter:saturate(180%) blur(12px);-webkit-backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--border);padding:10px 24px 10px 72px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}:root[data-theme=dark] .controls{background:#1a1812d9}.menu-btn{display:none}.control-group{display:flex;align-items:center;gap:6px}.control-label{font-size:var(--t-xs);color:var(--text-dim);text-transform:uppercase;letter-spacing:.08em;font-weight:600}.control-value{min-width:32px;text-align:center;font-variant-numeric:tabular-nums;font-weight:600;font-size:var(--t-sm)}.control-scroll{gap:4px}.select{height:30px;border:1px solid var(--border);border-radius:var(--r);background:var(--bg-1);padding:0 10px;color:var(--text);font-size:var(--t-sm);cursor:pointer}.theme-btn{margin-left:auto}.sheet-scroll{flex:1;overflow-y:auto;padding:32px clamp(16px,3vw,32px) 96px;scroll-behavior:smooth;background:var(--bg)}.sheet-page{max-width:920px;margin:0 auto;background:var(--bg-1);border:1px solid var(--border);border-radius:var(--r-lg);padding:40px clamp(24px,4vw,56px) 56px;box-shadow:var(--shadow-sm)}:root[data-theme=dark] .sheet-page{background:var(--bg-2)}@media(max-width:720px){.sheet-scroll{padding:24px 12px 80px}.sheet-page{padding:28px 20px 40px;border-radius:var(--r)}}.song-header{margin-bottom:28px}.song-header-row{display:flex;align-items:center;gap:14px;margin-bottom:12px;flex-wrap:wrap}.song-header h2{font-family:var(--font-display);margin:0;font-size:var(--t-3xl);font-weight:600;letter-spacing:-.015em;flex:1;min-width:0;line-height:1.1}.song-hero{display:flex;gap:20px;align-items:center;margin-bottom:16px}.song-hero-art{width:84px;height:84px;flex-shrink:0;border-radius:var(--r-lg);background:var(--accent);color:var(--bg-1);display:flex;align-items:center;justify-content:center;font-family:var(--font-display);font-size:38px;font-weight:600;letter-spacing:-.01em;box-shadow:var(--shadow)}.song-hero-text{flex:1;min-width:0}.song-hero-eyebrow{font-size:var(--t-xs);font-weight:600;text-transform:uppercase;letter-spacing:.1em;color:var(--text-dim);margin-bottom:6px}.song-hero-text h2{font-family:var(--font-display);margin:0 0 12px;font-size:var(--t-3xl);font-weight:600;letter-spacing:-.015em;line-height:1.05}.song-hero-actions{display:flex;gap:8px;flex-wrap:wrap;align-items:center}.song-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap;color:var(--text-dim)}.key-pill{font-size:var(--t-xs);border:1px solid var(--border);padding:3px 10px;border-radius:var(--r-pill);background:var(--bg-1);font-weight:500}.key-pill-inst{text-transform:capitalize;border-color:var(--accent);color:var(--accent)}.key-pill-readonly{background:var(--text-dim);color:var(--bg);border-color:var(--text-dim)}.chords-strip{margin:0 0 28px;padding:14px;background:var(--bg-1);border:1px solid var(--border);border-radius:var(--r-lg);overflow-x:auto}.chords-strip-inner{display:flex;gap:10px;min-width:max-content}.chord-tile{background:var(--bg-2);border:1px solid var(--border);border-radius:var(--r);padding:8px 6px 6px;width:88px;flex:0 0 88px;display:flex;flex-direction:column;align-items:center;gap:4px;cursor:pointer;transition:border-color var(--t-fast) var(--ease),transform var(--t-fast) var(--ease)}.chord-tile:hover{border-color:var(--accent);transform:translateY(-2px)}.chord-tile-name{font-family:var(--font-mono);font-weight:700;color:var(--accent);font-size:var(--t-md)}.chord-tile-canvas{width:76px;height:92px}.chord-tile-missing{width:76px;height:92px;display:flex;align-items:center;justify-content:center;color:var(--text-faint);font-size:var(--t-xl)}.sheet{font-family:var(--font-mono);font-size:var(--sheet-size-1)}:root[data-fontsize="0"] .sheet{font-size:var(--sheet-size-0)}:root[data-fontsize="2"] .sheet{font-size:var(--sheet-size-2)}.sheet-section{margin-bottom:32px}.sheet-section-label{font-family:var(--font-display);font-style:italic;margin:0 0 10px;font-size:var(--t-md);color:var(--accent);font-weight:500;letter-spacing:0}.sheet-line{display:flex;flex-wrap:wrap;align-items:flex-end;margin-bottom:4px;min-height:1em}.sheet-line-blank{height:.9em}.unit{display:inline-flex;flex-direction:column;white-space:pre}.unit-chord{height:1.15em;line-height:1.15}.chord-btn{background:transparent;border:0;color:var(--accent);font-family:var(--font-mono);font-weight:700;font-size:.92em;padding:0 2px 0 0;margin:0;cursor:pointer}.chord-btn:hover{color:var(--accent-hover);text-decoration:underline}.unit-lyric{line-height:1.55;color:var(--text)}.sheet-tab{font-family:var(--font-mono);background:var(--bg-2);border:1px solid var(--border);border-radius:var(--r);padding:14px;margin:12px 0;font-size:calc(var(--sheet-size-1) * .85);line-height:1.4;white-space:pre;overflow-x:auto;color:var(--text-soft)}.form-page-header{display:flex;align-items:center;gap:12px;margin-bottom:28px;flex-wrap:wrap}.form-page-header h1{margin:0;font-family:var(--font-display);font-size:var(--t-2xl);font-weight:600;letter-spacing:-.01em}.back-btn{padding:7px 12px;font-size:var(--t-sm)}.form-grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:28px}.form-fields{display:flex;flex-direction:column;gap:16px}.form-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px}.form-fields label{display:flex;flex-direction:column;gap:6px;font-size:var(--t-xs);color:var(--text-dim);text-transform:uppercase;letter-spacing:.08em;font-weight:600}.form-fields label>span{display:flex;align-items:center;gap:6px}.form-fields label em{color:var(--danger);font-style:normal}.form-fields .hint-em{color:var(--text-dim);font-style:italic;font-weight:400;text-transform:none}.form-fields input,.form-fields select,.form-fields textarea{background:var(--bg-1);color:var(--text);border:1px solid var(--border);border-radius:var(--r);padding:10px 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var(--accent-soft)}.popover-form .primary-btn{padding:6px 12px;font-size:var(--t-xs)}.playlist-list{list-style:none;margin:0;padding:0;background:var(--bg-1);border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden}.playlist-row{display:flex;align-items:center;gap:14px;padding:12px 16px;border-bottom:1px solid var(--border);cursor:pointer;transition:background var(--t-fast) var(--ease)}.playlist-row:last-child{border-bottom:0}.playlist-row:hover{background:var(--bg-2)}.playlist-pos{font-family:var(--font-mono);color:var(--text-faint);min-width:28px;text-align:right;font-size:var(--t-sm);font-weight:500}.playlist-row-info{flex:1;min-width:0}.playlist-row-title{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.playlist-row-artist{color:var(--text-dim);font-size:var(--t-sm);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:2px}.playlist-row-meta{display:flex;gap:6px}.member-list{list-style:none;margin:0;padding:0;max-width:600px;background:var(--bg-1);border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden}.member-row{display:flex;align-items:center;gap:12px;padding:12px 16px;border-bottom:1px solid var(--border)}.member-row:last-child{border-bottom:0}.member-avatar{width:36px;height:36px;border-radius:50%;background:var(--accent);display:inline-flex;align-items:center;justify-content:center;color:var(--bg-1);font-weight:700;font-size:var(--t-sm)}.member-name{flex:1;font-weight:500}.member-role{font-size:var(--t-xs);text-transform:uppercase;letter-spacing:.08em;color:var(--text-dim);font-weight:600}.toasts{position:fixed;bottom:24px;left:50%;transform:translate(-50%);display:flex;flex-direction:column;gap:8px;z-index:200;pointer-events:none}.toast{background:var(--text);color:var(--bg-1);padding:12px 18px;border-radius:var(--r-pill);font-size:var(--t-sm);font-weight:500;box-shadow:var(--shadow-lg);animation:pop-in var(--t-mid) var(--ease-out)}.kbd-toggle{position:fixed;right:18px;bottom:18px;width:36px;height:36px;border-radius:50%;border:1px solid var(--border);background:var(--bg-1);color:var(--text-dim);font-weight:700;font-size:var(--t-md);cursor:pointer;z-index:30;box-shadow:var(--shadow);transition:color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease)}.kbd-toggle:hover{color:var(--accent);border-color:var(--accent)}.kbd-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#281e0f80;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);display:flex;align-items:center;justify-content:center;z-index:100;padding:16px}.kbd-panel{background:var(--bg-1);border:1px solid var(--border);border-radius:var(--r-lg);padding:28px 32px;box-shadow:var(--shadow-lg);min-width:340px;animation:pop-in var(--t-mid) var(--ease-out)}.kbd-panel h3{margin:0 0 18px;font-family:var(--font-display);font-size:var(--t-lg);font-weight:600}.kbd-panel dl{display:grid;grid-template-columns:auto 1fr;gap:12px 20px;margin:0;align-items:center}.kbd-panel dt{display:flex;gap:4px}.kbd-panel dd{margin:0;color:var(--text-dim);font-size:var(--t-sm)}.kbd-panel kbd{font-family:var(--font-mono);font-size:var(--t-xs);background:var(--bg-sunken);border:1px solid var(--border);border-radius:var(--r-sm);padding:3px 8px;color:var(--text);font-weight:500}@media(max-width:720px){.page-header{flex-direction:column;align-items:stretch;gap:12px;margin-bottom:20px}.page-header-actions{margin-left:0;flex-wrap:wrap;gap:8px}.page-header-actions .primary-btn{flex:1;min-width:140px}.form-page-header{gap:8px}.form-page-header h1{width:100%;order:-1;font-size:var(--t-xl)}.form-page-header .ghost-btn,.form-page-header .primary-btn{padding:8px 12px;font-size:var(--t-sm)}.back-btn{padding:6px 10px}.filter-bar{gap:8px}.filter-sort{order:2;flex-shrink:0}.filter-search{order:1;flex:1 1 100%;min-width:0}}@media(max-width:800px){.nav-sidebar{position:fixed;inset:0 auto 0 0;transform:translate(-100%);transition:transform var(--t-mid) var(--ease);z-index:50;box-shadow:var(--shadow-lg)}.nav-sidebar-open{transform:translate(0)}.nav-backdrop{display:block;position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;z-index:40;animation:fade-in var(--t-fast) var(--ease-out)}.mobile-menu-btn{display:inline-flex}.page{padding:76px 16px 96px}.page-header h1{font-size:var(--t-2xl)}.browse-hero{padding:28px 22px 24px;margin-bottom:22px}.browse-hero h1{font-size:clamp(22px,6vw,30px)}.browse-hero p{font-size:var(--t-md)}.controls{padding:8px 14px 8px 60px;gap:10px}.control-label{display:none}.control-scroll{gap:2px}.form-grid{grid-template-columns:1fr;gap:18px}.form-preview{position:static;max-height:none}.form-row{grid-template-columns:1fr}.grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}.card{padding:14px}.import-row{grid-template-columns:1fr}.toasts{bottom:16px;left:12px;right:12px;transform:none}.section-h{font-size:var(--t-lg);margin:24px 0 12px}.song-hero{gap:14px;margin-bottom:12px}.song-hero-art{width:56px;height:56px;font-size:24px;border-radius:var(--r)}.song-hero-text h2{font-size:var(--t-xl);margin-bottom:8px}.song-meta{gap:6px}.key-pill{font-size:10px;padding:2px 8px}.tab-row{overflow-x:auto;flex-wrap:nowrap;-webkit-overflow-scrolling:touch}.tab{white-space:nowrap}}@media(max-width:480px){.page-header h1{font-size:var(--t-xl)}.browse-hero p,.filter-sort-label{display:none}.play-btn{width:34px;height:34px}.step-btn{width:28px;height:28px}}