:root{--bg: #f2f6f5;--surface: #ffffff;--text: #16262a;--muted: #5f7378;--border: #d8e2e0;--accent: #0f766e;--accent-soft: #d9efec;--danger: #b03a3a;--font-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;--font-mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace}:root[data-theme=dark]{--bg: #101a1c;--surface: #182426;--text: #e2ecea;--muted: #8aa19e;--border: #263539;--accent: #4fd8c6;--accent-soft: #143330;--danger: #e07070}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font-ui);line-height:1.5}a{color:var(--accent)}button{font:inherit;color:inherit;background:none;border:none;cursor:pointer;padding:0}.page{max-width:760px;margin:0 auto;padding:0 16px calc(24px + env(safe-area-inset-bottom))}.page-narrow{max-width:620px}.muted{color:var(--muted);font-weight:400}.app-header{display:flex;align-items:center;gap:12px;padding:20px 0 12px}.app-title{font-family:var(--font-serif);font-size:28px;font-weight:600;margin:0;flex:1}.app-header-actions{display:flex;align-items:center;gap:8px}.btn{display:inline-block;padding:10px 16px;border-radius:10px;border:1px solid var(--border);background:var(--surface);text-decoration:none;font-weight:500;min-height:44px}.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}:root[data-theme=dark] .btn-primary{color:#06201d}.btn:disabled{opacity:.6;cursor:default}.icon-btn{display:inline-flex;align-items:center;justify-content:center;min-width:44px;min-height:44px;border-radius:10px;font-size:18px;color:var(--muted);text-decoration:none}.icon-btn:hover{background:var(--accent-soft);color:var(--text)}.fav-active{color:var(--accent)}.toggle-active{background:var(--accent-soft);color:var(--accent)}.delete-armed{background:var(--danger);color:#fff;font-size:14px;font-weight:600;padding:0 10px}.link-btn{color:var(--accent);text-decoration:underline;padding:8px 0;text-align:left}.text-input,.search-input,.paste-area{width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:10px;background:var(--surface);color:var(--text);font:inherit;min-height:44px}.text-input:focus,.search-input:focus,.paste-area:focus{outline:2px solid 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.text-input{flex:1}.error-box{background:var(--accent-soft);border:1px solid var(--accent);color:var(--text);border-radius:10px;padding:12px 14px;font-size:14px}.paste-form{display:flex;flex-direction:column;gap:10px}.paste-meta{display:flex;gap:10px}.paste-area{font-family:var(--font-mono);font-size:13px;resize:vertical}.song-page{padding-top:0}.song-header{position:sticky;top:0;z-index:10;background:var(--bg);border-bottom:1px solid var(--border);padding:8px 0 10px}.song-header-top{display:flex;align-items:center;gap:8px}.song-header-titles{flex:1;min-width:0}.song-title{font-family:var(--font-serif);font-size:22px;font-weight:600;margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.song-artist{margin:0;color:var(--muted);font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.song-key{color:var(--accent);font-weight:600}.song-meta{display:flex;flex-wrap:wrap;gap:6px;padding:6px 0 2px}.chip{font-size:13px;color:var(--muted);border:1px solid var(--border);border-radius:999px;padding:3px 10px}.toolbar{display:flex;flex-wrap:wrap;align-items:center;gap:6px;padding-top:6px}.toolbar-group{display:inline-flex;align-items:center;border:1px solid var(--border);border-radius:10px;background:var(--surface)}.toolbar-group .icon-btn{border-radius:9px}.toolbar-value{min-width:36px;text-align:center;font-variant-numeric:tabular-nums;color:var(--accent);font-weight:600}.toolbar-value:disabled{color:var(--muted);font-weight:400}.scroll-group{padding-right:10px;gap:6px}.scroll-group input[type=range]{width:90px;accent-color:var(--accent)}.diagrams{display:flex;flex-wrap:wrap;gap:8px;padding:14px 0 0}.chord-diagram{margin:0;text-align:center}.chord-diagram figcaption{font-family:var(--font-mono);font-size:13px;color:var(--accent);font-weight:600}.cd-line{stroke:var(--muted);stroke-width:1}.cd-nut{fill:var(--text)}.cd-dot{fill:var(--accent)}.cd-open{fill:none;stroke:var(--muted);stroke-width:1.5}.cd-marker,.cd-basefret{fill:var(--muted);font-size:11px;text-anchor:middle}.song-body{padding-top:16px;font-family:var(--font-mono)}.song-section{margin-bottom:8px}.section-header{display:flex;align-items:center;gap:8px;font-family:var(--font-ui);font-weight:700;font-size:.95em;color:var(--accent);padding:10px 0 4px;width:100%;text-align:left}.chevron{display:inline-block;transition:transform .15s;font-size:12px}.chevron-collapsed{transform:rotate(-90deg)}.song-lines{overflow-x:auto}.song-line{min-width:max-content}.chord-line,.lyric-line{white-space:pre;line-height:1.45}.chord-line{color:var(--accent);font-weight:700}.blank-line{height:1.45em}@media(min-width:640px){.app-title{font-size:32px}.song-title{font-size:26px}}