.song-editor-header{--song-title-line:calc(1.12rem * 1.3);background:var(--bg-primary);border-bottom:1px solid var(--border-color);flex-direction:column;gap:.5rem;padding:.5rem 0;display:flex;position:relative}.header-rail{min-height:var(--song-ctrl-h);align-items:center;gap:.5rem;display:flex}.rail-left,.rail-right{flex-shrink:0;align-items:center;gap:.4rem;display:inline-flex}.header-desktop-actions{align-items:center;gap:.4rem;display:inline-flex}.rail-center{flex:1;justify-content:center;min-width:0;padding:0 .5rem;display:flex}.header-rail--top.arrangement-wrapped{align-items:flex-start}.header-rail--top.arrangement-wrapped .rail-left,.header-rail--top.arrangement-wrapped .rail-right{min-height:var(--song-ctrl-h)}.header-rail--bottom{justify-content:flex-end}.song-editor-header .back-btn{height:var(--song-ctrl-h);min-height:var(--song-ctrl-h);border-radius:var(--song-ctrl-r);color:var(--text-secondary);background:0 0;border-color:transparent;padding:0 .6rem 0 .4rem;font-weight:600}.song-editor-header .back-btn:hover{background:var(--surface-2);color:var(--text-primary)}.song-editor-header .back-btn:focus-visible{background:var(--surface-2);color:var(--text-primary)}.title-arrangement-row{text-align:center;flex-wrap:wrap;justify-content:center;align-items:baseline;gap:.15rem 1rem;width:100%;min-width:0;display:flex}.song-title-group{flex-wrap:wrap;flex:0 auto;justify-content:center;align-items:baseline;gap:.15rem 1.75rem;width:max-content;min-width:0;max-width:100%;display:flex}.song-editor-header .song-title-text{width:max-content;max-width:100%;color:var(--text-primary);letter-spacing:-.01em;overflow-wrap:break-word;text-align:center;flex:none;min-width:0;margin:0;font-size:1.12rem;font-weight:750;line-height:1.3}.song-title-artist{min-width:0;max-width:100%;color:var(--text-secondary);text-align:center;flex:0 auto;font-size:.95rem;line-height:1.3;position:relative}.song-title-artist:before{content:"—";position:absolute;right:calc(100% + .875rem);transform:translate(50%)}.song-title-group.artist-wrapped .song-title-artist:before{visibility:hidden}.song-title-group.artist-wrapped .song-title-artist{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.song-editor-header .header-rail--top .arrangement-selector:before{color:var(--text-secondary);content:"·";opacity:.5;position:absolute;right:calc(100% + .4rem)}.title-arrangement-row.wrapped .arrangement-selector:before{visibility:hidden}.meta-strip-inline{flex-wrap:nowrap;align-items:center;gap:.5rem;min-width:0;max-width:100%;display:inline-flex}.song-editor-header .header-rail--top .arrangement-selector{flex:0 auto;width:max-content;min-width:0;max-width:100%;position:relative}.song-editor-header .header-rail--top .arrangement-selector .dropdown{min-width:0;max-width:100%}.song-editor-header .header-rail--top .arrangement-current-name{overflow-wrap:anywhere;-webkit-line-clamp:2;-webkit-box-orient:vertical;min-width:0;display:-webkit-box;overflow:hidden}.song-editor-header .arrangement-selector .arrangement-name{overflow-wrap:anywhere;white-space:normal}.song-editor-header .header-rail--top .arrangement-selector .dropdown-toggle{outline-offset:2px;box-shadow:none;color:var(--text-secondary);width:max-content;max-width:100%;min-width:unset;background:0 0;border:none;border-radius:6px;outline:2px solid transparent;gap:.25rem;height:auto;padding:.15rem 0;font-size:.92rem;font-weight:500}.song-editor-header .header-rail--top .arrangement-selector .dropdown-toggle:hover{background:var(--surface-2);color:var(--text-primary)}.song-editor-header .header-rail--top .arrangement-selector .dropdown-toggle:focus-visible{background:var(--surface-2);outline-color:var(--border-color);color:var(--text-primary)}.song-editor-header .header-rail--top .arrangement-selector .dropdown-arrow{opacity:.6;font-size:var(--font-size-xxs);flex-shrink:0}.song-editor-header .header-rail--top .arrangement-count{display:none}.song-editor-header-details:has(.song-editor-inline-info.is-empty){display:none}.song-editor-header .song-editor-header-details .song-editor-inline-info{margin-top:0}@media (width<=900px){.meta-strip-inline{flex-wrap:wrap;justify-content:flex-start}.song-editor-header .header-rail--bottom{display:none}.header-rail--top{min-height:var(--song-ctrl-h);gap:.25rem}.header-rail--top .rail-left,.header-rail--top .rail-right{min-height:var(--song-ctrl-h);flex-shrink:0}.header-rail--top .rail-right{display:inline-flex}.song-editor-header .back-btn{width:var(--song-ctrl-h);min-width:var(--song-ctrl-h);margin-left:calc((var(--song-ctrl-h) - 18px) / -2);justify-content:center;padding:0}.song-editor-header .back-btn svg{margin-right:0}.song-editor-header .back-btn .back-btn__label{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.header-rail--top .rail-center{flex:1 1 0;justify-content:flex-start;min-width:0;padding:0 .25rem 0 0}.title-arrangement-row{text-align:left;flex-direction:column;align-items:flex-start;gap:.15rem}.song-title-group{text-align:left;justify-content:flex-start;width:100%}.title-arrangement-row .arrangement-selector:before{display:none}.song-editor-header .song-title-text{-webkit-line-clamp:2;-webkit-box-orient:vertical;line-height:1.25;display:-webkit-box;overflow:hidden}.song-editor-header .song-title-text,.song-title-artist{text-align:left}.song-editor-header .song-title-text{font-size:var(--font-size-md)}.header-rail--top .kebab-menu,.header-desktop-actions,.song-title-artist{display:none}.header-rail--top .arrangement-selector .dropdown-toggle{font-size:var(--font-size-sm);text-align:left;padding:.1rem 0}.header-rail--top .arrangement-count{display:none}.song-editor-header .arrangement-line{justify-content:space-between;align-items:center;gap:.5rem;width:100%;min-width:0;display:flex}.song-editor-header .arrangement-line>.arrangement-selector{flex:0 auto;min-width:0}.header-mobile-popover--mode .view-toggle{min-height:var(--song-ctrl-h);height:var(--song-ctrl-h);border-radius:var(--song-ctrl-r)}.song-editor-header .mobile-pill-btn--icon{width:var(--song-ctrl-h);min-width:var(--song-ctrl-h);height:var(--song-ctrl-h);color:var(--text-secondary);border-radius:var(--song-ctrl-r);margin-right:calc((var(--song-ctrl-h) - 20px) / -2);background:0 0;border-color:transparent;flex-shrink:0;padding:0}.song-editor-header .mobile-pill-btn--icon:hover,.song-editor-header .mobile-pill-btn--icon[aria-expanded=true]{background:var(--surface-2);color:var(--text-primary)}.header-rail--top .rail-right{gap:.15rem}.header-mobile-popover .mobile-popover-panel{background:var(--surface-2);border:1px solid var(--border-color);z-index:20;border-radius:12px;flex-direction:column;gap:.5rem;min-width:220px;max-width:min(90vw,320px);padding:.75rem;display:flex;position:absolute;top:calc(100% + 8px);bottom:auto;left:0;transform:none;box-shadow:0 12px 32px rgba(0,0,0,.18)}.header-mobile-popover--actions .mobile-popover-panel{left:auto;right:0}.header-mobile-popover .mobile-popover-panel--buttons{flex-direction:row;justify-content:space-between;align-items:center;gap:.4rem;padding:.6rem .75rem}}@media (width<=480px){.status-text{display:none}.song-editor-header .header-rail--top .arrangement-selector .dropdown-toggle{gap:.2rem;padding:.12rem 0;font-size:.88rem}.header-mobile-popover .mobile-popover-panel{width:min(320px,100vw - 24px);max-width:none}}@media (width>900px){.mobile-header-status,.header-mobile-popover,.song-editor-header .header-mobile-popover--actions,.header-mobile-backdrop{display:none}}.mobile-header-status{align-items:center;gap:.25rem;display:none}.mobile-header-status .status-dot{width:10px;height:10px}.header-mobile-backdrop{z-index:15;background:rgba(0,0,0,.45);position:fixed;inset:0}.header-kebab-backdrop{z-index:25;position:fixed;inset:0}.header-mobile-popover{flex-direction:column;align-items:center;display:inline-flex}.header-mobile-popover--actions{flex-flow:row;align-items:center;gap:.4rem;display:inline-flex}.header-mobile-popover .mobile-pill-btn:not(.mobile-pill-btn--icon){width:auto;min-width:fit-content}.header-mobile-popover--mode .view-toggle--pill-row{min-width:0}.header-mobile-popover--mode .view-toggle--pill-row>.segment{padding:0 .6rem;font-size:.82rem}.song-save-warning{padding:var(--spacing-md);margin-block:var(--spacing-sm);color:var(--text-primary);background:var(--status-danger-bg);border-left:3px solid var(--accent-danger);border-radius:var(--border-radius-md)}.song-save-warning .btn{margin-top:var(--spacing-sm);margin-right:var(--spacing-sm)}@media (width<=480px){.header-mobile-popover--mode .view-toggle--pill-row>.segment{padding-inline:var(--spacing-xs)}}@media (width>900px){.screen--song-editor .song-editor-header{align-items:center;gap:var(--spacing-sm);max-width:none;padding-block:var(--spacing-xs);grid-template-columns:minmax(0,1fr) auto;display:grid}.song-editor-header>.header-rail--top{min-width:0}.song-editor-header>.header-rail--bottom{gap:var(--spacing-md)}.song-editor-header .header-rail--bottom>.rail-center{flex:none;padding:0}.song-editor-header .arrangement-line{display:contents}.song-editor-header .header-mobile-popover--mode{display:none}.song-editor-header .title-arrangement-row,.song-editor-header .song-title-group{text-align:left;justify-content:flex-start;gap:var(--spacing-sm)}.song-editor-header .song-title-artist:before,.song-editor-header .back-btn__label{display:none}.song-editor-header>.song-editor-header-details{grid-area:2/1/auto/-1}.song-editor-header .header-rail--top>.rail-center{flex:0 auto}.screen--song-editor .song-editor-header:has(>.header-rail--top.arrangement-wrapped){align-items:start}.song-editor-header>.header-rail--top.arrangement-wrapped{padding-top:calc((var(--song-ctrl-h) - var(--song-title-line)) / 2)}.song-editor-header>.header-rail--top.arrangement-wrapped>.rail-left,.song-editor-header>.header-rail--top.arrangement-wrapped>.rail-right{height:var(--song-title-line);min-height:0}}