:root{--bg: #f6f7fb;--surface: #ffffff;--surface-2: #f0f1f5;--border: #e2e5ec;--text: #1a1d26;--text-muted: #6b7280;--text-faint: #9ca3af;--accent: #7c3aed;--accent-hover: #6d28d9;--accent-light: #ede9fe;--accent-text: #6d28d9;--error: #dc2626}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);height:100dvh;overflow:hidden;-webkit-tap-highlight-color:transparent}.app{display:flex;height:100dvh;overflow:hidden}.btn{border:none;border-radius:8px;font-size:15px;font-weight:500;cursor:pointer;padding:10px 16px;min-height:44px;transition:background .15s}.btn--sm{padding:6px 12px;min-height:36px;font-size:14px}.btn--primary{background:var(--accent);color:#fff}.btn--primary:hover{background:var(--accent-hover)}.btn--ghost{background:transparent;color:var(--text-muted)}.btn--ghost:hover{background:var(--surface-2)}.btn:disabled{opacity:.4;cursor:default;pointer-events:none}.video-list{width:280px;flex-shrink:0;background:var(--surface);border-right:1px solid var(--border);padding:16px;overflow-y:auto;-webkit-overflow-scrolling:touch}.video-list__header{display:flex;align-items:flex-start;justify-content:space-between;gap:8px;margin-bottom:16px;padding:0 4px}.app-brand{display:flex;align-items:center;gap:10px}.app-brand__mark{width:28px;height:28px;flex-shrink:0;color:var(--accent)}.app-brand--lg .app-brand__mark{width:32px;height:32px}.app-brand--sm .app-brand__mark{width:24px;height:24px}.app-brand--sm .video-list__brand,.app-brand--sm .home__brand{font-size:18px}.app-brand--link{border:none;background:none;padding:0;margin:0;cursor:pointer;color:inherit;font:inherit;text-align:left}.app-brand--link:hover .video-list__brand,.app-brand--link:hover .home__brand,.app-brand--link:hover .login-card__title{color:var(--accent)}.app-brand__title,.app-brand .home__brand,.app-brand .video-list__brand,.app-brand .login-card__title{margin:0}.video-list__brand{font-size:20px;font-weight:700;letter-spacing:-.02em;color:var(--text)}.video-list__tagline{font-size:12px;color:var(--text-muted);margin-top:2px}.app-tagline__channel{margin:6px 0 0;font-size:13px}.app-tagline__channel a{display:inline-flex;align-items:center;flex-wrap:wrap;gap:6px;color:var(--text);text-decoration:none}.app-tagline__channel a:hover{color:var(--accent-text)}.app-tagline__channel a:hover .app-tagline__channel-name{text-decoration:underline}.app-tagline__channel-label{color:var(--text-muted)}.app-tagline__channel-name{color:var(--accent-text);font-weight:600}.app-tagline__yt-icon{width:18px;height:18px;flex-shrink:0;color:red}.video-list__title{font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted)}.video-list__items{list-style:none;display:flex;flex-direction:column;gap:4px}.video-list__empty{padding:16px 12px;font-size:14px;color:var(--text-muted);text-align:center}.song-search{display:block;margin-bottom:12px}.song-search__label{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.song-search__input{width:100%;background:var(--bg);border:1px solid var(--border);border-radius:8px;color:var(--text);font-size:14px;padding:10px 12px;min-height:40px;font-family:inherit}.song-search__input:focus{outline:none;border-color:var(--accent)}.song-search__input--compact{min-height:36px;padding:8px 10px;font-size:13px}.video-item{width:100%;display:flex;flex-direction:column;align-items:flex-start;gap:2px;padding:14px 12px;border:none;border-radius:8px;background:transparent;color:inherit;cursor:pointer;text-align:left;transition:background .15s;min-height:44px}.video-item:hover{background:var(--surface-2)}.video-item--active{background:var(--accent-light)}.video-item--active .video-item__title{color:var(--accent-text)}.video-item__title{font-size:15px;font-weight:500}.video-item__artist{font-size:13px;color:var(--text-muted)}.main{flex:1;display:flex;flex-direction:column;overflow:hidden;min-width:0;background:var(--bg)}.placeholder{flex:1;display:flex;align-items:center;justify-content:center;padding:24px}.placeholder__hint{color:var(--text-faint);font-size:16px}.player{flex:1;display:flex;gap:24px;padding:16px 20px;overflow:hidden;min-height:0;position:relative}.player__left{flex:1;display:flex;flex-direction:column;gap:12px;min-width:0;min-height:0}.player__right{flex:1;display:flex;flex-direction:column;min-width:0;min-height:0;border-left:1px solid var(--border);padding-left:24px;overflow-x:hidden;overflow-y:auto}.lyrics-panel__body{display:flex;flex:1 1 auto;min-height:12rem;gap:16px;overflow:hidden}.lyrics-panel__main{flex:1 1 auto;min-width:0;min-height:10rem;display:flex;flex-direction:column;overflow:hidden}.annot-notepad-wrap{flex-shrink:0;align-self:stretch;min-height:0;display:flex}.annot-notepad-wrap[hidden]{display:none!important}.annot-notepad{width:200px;flex-shrink:0;display:flex;flex-direction:column;min-height:0;align-self:stretch;position:relative;z-index:3;background:var(--surface);border-left:1px solid var(--border);padding-left:14px;overflow-y:auto}.annot-notepad__heading{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);margin:0 0 10px;flex-shrink:0}.annot-notepad__empty{margin:0;font-size:13px;line-height:1.45;color:var(--text-muted)}.annot-notepad__quote{margin:0 0 12px;font-size:14px;font-weight:600;line-height:1.35;color:var(--text)}.annot-notepad__section+.annot-notepad__section{margin-top:12px;padding-top:12px;border-top:1px solid var(--border)}.annot-notepad__section-title{margin:0 0 8px;font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted)}.annot-notepad__list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}.annot-notepad__item{display:flex;flex-direction:column;gap:4px}.annot-notepad__cat{align-self:flex-start;padding:2px 7px;border-radius:999px;font-size:10px;font-weight:700;color:#fff;line-height:1.3}.annot-notepad__text{margin:0;font-size:13px;line-height:1.45;color:var(--text);white-space:pre-wrap;word-break:break-word}.annot-notepad__text--empty{color:var(--text-muted);font-style:italic}.annot-notepad__optional{margin-top:10px;padding-top:10px;border-top:1px dashed var(--border)}.annot-notepad__optional-label{margin:0 0 4px;font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted)}.annot-notepad__optional-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}.annot-notepad__optional-list .annot-notepad__text{margin:0}.player__video{position:relative;flex:1;min-height:0;border-radius:12px;overflow:hidden;background:#000;box-shadow:0 2px 12px #00000014}.player__video-embed{width:100%;height:100%}.player__video-embed iframe{width:100%;height:100%;border:none}.player__video-embed--hidden{display:none}.player__header{flex-shrink:0}.player__mobile-top{display:none}.player__title{font-size:22px;font-weight:700;line-height:1.2;color:var(--text)}.player__artist{font-size:14px;color:var(--text-muted);margin-top:2px}.player__source{position:relative}.player__source-header{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.player__source-header .player__title{flex:1;min-width:0}.player__source-select-btn{flex-shrink:0;white-space:nowrap;border:1px solid var(--accent);background:var(--accent-light);color:var(--accent-text);font-weight:600}.player__source-select-btn:hover,.player__source-select-btn.btn--active{background:var(--accent);border-color:var(--accent-hover);color:#fff}.player__source-current{font-size:12px;color:var(--accent-text);margin-top:4px}.player__source-menu{margin:0;padding:4px;list-style:none;background:var(--surface);border:1px solid var(--border);border-radius:10px;box-shadow:0 8px 24px #0000001f}.player__source-option{display:block;width:100%;border:none;background:none;text-align:left;padding:10px 12px;border-radius:8px;font-size:14px;color:var(--text);cursor:pointer}.player__source-option:hover{background:var(--surface-2)}.player__source-option--active{background:var(--accent-light);color:var(--accent-text);font-weight:600}.player__video--audio{background:linear-gradient(145deg,#1a1d26,#2d2640)}.player__audio-panel{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;color:#fff}.player__audio-icon{font-size:48px;opacity:.85}.player__audio-label{font-size:15px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;opacity:.9}.player__controls{display:flex;align-items:center;gap:10px;flex-shrink:0}.player__play-btn{width:48px;height:48px;border-radius:50%;border:none;background:var(--accent);color:#fff;font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:background .15s;box-shadow:0 2px 8px #7c3aed40}.player__play-btn:hover{background:var(--accent-hover)}.player__time{font-size:13px;color:var(--text-muted);font-variant-numeric:tabular-nums;min-width:32px}.player__progress{flex:1;height:8px;background:var(--border);border-radius:4px;cursor:pointer;position:relative;touch-action:none}.player__progress-bar{height:100%;background:var(--accent);border-radius:4px;transition:width .1s linear;pointer-events:none}.lyrics__toolbar{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:8px;flex-shrink:0}.lyrics__actions{display:flex;flex-wrap:wrap;align-items:center;gap:6px}.btn--active{background:var(--surface-2);color:var(--accent)}.song-notes{flex-shrink:0;margin-bottom:10px;padding:10px 12px;border-radius:10px;border:1px solid var(--border);background:var(--surface-2);max-height:22rem;overflow-y:auto}.song-notes__label{display:block;margin-bottom:6px;font-size:12px;font-weight:600;color:var(--text-muted)}.song-notes__input{width:100%;min-height:14rem;resize:vertical;padding:8px 10px;border-radius:8px;border:1px solid var(--border);background:var(--surface);color:var(--text);font:inherit;line-height:1.45}.song-notes__input:focus{outline:2px solid var(--accent-light);border-color:var(--accent)}.song-notes__error{margin:0 0 6px;font-size:.85rem;color:#e57373}.annotation-schema{flex-shrink:0;margin-bottom:12px;padding:12px;border:1px solid var(--border);border-radius:8px;background:var(--surface-elevated, #fafafa);max-height:22rem;overflow-y:auto}.annotation-schema__header{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;margin-bottom:10px}.annotation-schema__intro{margin:0;font-size:.85rem;color:var(--text-muted);max-width:42rem}.annotation-schema__status{flex-shrink:0}.annotation-schema__error{margin:0 0 8px;font-size:.85rem;color:#e57373}.annotation-schema__list{list-style:none;margin:0 0 12px;padding:0;display:flex;flex-direction:column;gap:8px}.annotation-schema__row{display:flex;flex-wrap:wrap;gap:8px;align-items:center;padding:8px;border-radius:6px;background:#fff;border:1px solid var(--border)}.annotation-schema__field{display:flex;flex-direction:column;gap:2px;min-width:80px}.annotation-schema__field-label{font-size:.7rem;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted)}.annotation-schema__input,.annotation-schema__select{font:inherit;font-size:.85rem;padding:4px 6px;border:1px solid var(--border);border-radius:4px}.annotation-schema__input--id{width:4.5rem;font-family:ui-monospace,monospace}.color-select{position:relative;min-width:6.75rem}.color-select__trigger{display:flex;align-items:center;gap:6px;width:100%;font:inherit;font-size:.85rem;padding:4px 6px;border:1px solid var(--border);border-radius:4px;background:#fff;cursor:pointer;text-align:left}.color-select__trigger:hover{border-color:var(--text-muted)}.color-select__preview{width:14px;height:14px;border-radius:3px;flex-shrink:0;border:1px solid rgb(0 0 0 / 12%)}.color-select__label{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.color-select__caret{flex-shrink:0;font-size:.7rem;color:var(--text-muted);line-height:1}.color-select__menu{position:absolute;z-index:30;top:calc(100% + 2px);left:0;right:0;margin:0;padding:4px 0;list-style:none;max-height:11rem;overflow-y:auto;border:1px solid var(--border);border-radius:4px;background:#fff;box-shadow:0 4px 14px #0000001a}.color-select__option{display:flex;align-items:center;gap:8px;width:100%;padding:5px 8px;border:0;background:transparent;font:inherit;font-size:.85rem;text-align:left;cursor:pointer}.color-select__option:hover{background:var(--surface-elevated, #f4f4f5)}.color-select__option--selected{background:var(--accent-light, #ede9fe)}.color-select__option-label{min-width:0}.annotation-schema__checkbox{display:flex;align-items:center;gap:4px;font-size:.85rem}.annotation-schema__delete{margin-left:auto}.annotation-schema__add-title{margin:0 0 8px;font-size:.9rem}.annotation-schema__add-grid{display:flex;flex-wrap:wrap;gap:8px;align-items:flex-end}.lyrics__edit-bar{display:flex;gap:8px;margin-bottom:10px;flex-shrink:0}.lyrics__heading{font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);margin-bottom:0;flex-shrink:0}.lyrics{flex:1 1 auto;overflow-y:auto;display:flex;flex-direction:column;gap:10px;min-height:8rem;padding-right:4px;-webkit-overflow-scrolling:touch}.lyrics__block{flex-shrink:0}.lyrics__block--past .lyrics__line{color:var(--text-muted)}.lyrics__block--active .lyrics__line{color:var(--text);font-weight:600}.lyrics__block--annotate .lyrics__line{cursor:text;-webkit-user-select:text;user-select:text}.lyrics--annotate{-webkit-user-select:text;user-select:text}.lyrics--edit{-webkit-user-select:auto;user-select:auto}.lyrics__line-row--edit .lyrics__line-meta{opacity:1}.lyrics__line-row--edit .lyrics__line-content{display:flex;flex-direction:row;align-items:flex-start;gap:8px}.lyrics__line-row--edit .lyrics__line-content .lyrics__play-zone{grid-column:unset;grid-row:unset;flex-shrink:0}.lyrics__line-row--edit .lyrics__line-content .lyrics__line-text-area{flex:1;min-width:0;grid-column:unset;grid-row:unset}.lyrics__line-row--edit .lyrics__line-content .lyrics__input--line{grid-column:unset;grid-row:unset;flex:1;min-width:0;width:auto}.lyrics__input--line{font-size:16px;line-height:1.28;padding:4px 8px;margin-top:0;width:100%}.lyrics__line-row--active .lyrics__input--line{font-weight:600}.lyrics__line-row{display:flex;flex-direction:column;gap:0;padding:0;flex-shrink:0}.lyrics__line-content{display:grid;grid-template-columns:32px minmax(0,1fr);grid-template-rows:auto auto auto;column-gap:8px;align-items:start;width:100%;font-size:18px;line-height:1.28}.lyrics__line-content .lyrics__line-text-area{grid-column:2;grid-row:2;min-width:0}.lyrics__line-edit-wrap[hidden],.lyrics__line-annotate-wrap[hidden]{display:none!important}.lyrics__line-content .lyrics__annotated-embedded{min-width:0}.lyrics__line-content .lyrics__annotated-embedded .lyrics__line-stack{display:flex;flex-direction:column}.lyrics__line-content .lyrics__input--line{width:100%}.lyrics__line-content .lyrics__play-zone{grid-column:1;grid-row:2;align-self:start;justify-self:center;margin-top:max(0px,calc((1.28em - 22px)/2))}.lyrics__play-zone{flex-shrink:0;width:32px;height:22px;margin-top:0;border:none;padding:0;cursor:pointer;border-radius:4px;background:linear-gradient(90deg,#ede9fe,#c4b5fd,#a78bfa) center / 28px 5px no-repeat;opacity:.55;transition:opacity .15s,background-size .15s,filter .15s}.lyrics__line-row:hover .lyrics__play-zone{opacity:.9}.lyrics__play-zone:hover{opacity:1;background-size:32px 6px;filter:brightness(1.06)}.lyrics__line-row--active .lyrics__play-zone{opacity:1;background:linear-gradient(90deg,#ddd6fe,#8b5cf6 55%,#7c3aed) center / 32px 6px no-repeat;box-shadow:0 0 8px #7c3aed4d}.lyrics__line-row--live .lyrics__play-zone{opacity:1;background:linear-gradient(90deg,#fce7f3,#c084fc,#7c3aed) center / 32px 6px no-repeat;box-shadow:0 0 10px #c084fc59}.lyrics__line-meta{display:flex;align-items:center;justify-content:space-between;gap:8px;padding-left:40px;margin-bottom:2px}.lyrics__line-time{align-self:flex-start;border:none;background:none;padding:0 0 2px 40px;font-size:11px;font-variant-numeric:tabular-nums;color:var(--text-muted);cursor:pointer;opacity:0;transition:opacity .15s}.lyrics__line-row:hover .lyrics__line-time,.lyrics__line-row--live .lyrics__line-time{opacity:1}.lyrics__line-time:hover{color:var(--accent)}.lyrics__annotated-embedded{margin-top:0;min-width:0}.lyrics__line--embedded{font-size:18px;line-height:1.28;color:var(--text);padding:0;cursor:text;transition:color .2s}.lyrics__line-row--active .lyrics__line--embedded{color:var(--text);font-weight:600}.lyrics__line-row--past .lyrics__line--embedded{color:var(--text-muted)}.lyrics__autosave{font-size:12px;color:var(--text-muted);align-self:center}.lyrics__autosave--ok{color:var(--accent-text)}.lyrics__hint{font-size:13px;color:var(--text-muted);margin-bottom:10px;flex-shrink:0}.lyrics__line-text{-webkit-user-select:text;user-select:text}.lyrics__line-stack{display:inline-grid;grid-template-columns:minmax(0,max-content);max-width:100%;vertical-align:top}.lyrics__badge-layer{position:relative;grid-column:1;min-height:.72em;pointer-events:none;z-index:1}.lyrics__badge-layer--above{grid-row:1;margin-bottom:0}.lyrics__badge-layer--below{grid-row:3;margin-top:0}.lyrics__badges--positioned{position:absolute;pointer-events:auto;transform:translate(-50%);white-space:nowrap;transition:opacity .1s;z-index:2}.lyrics__badges--above{bottom:0}.lyrics__badges--below{top:0}.lyrics__atomic{padding:0 1px;background-color:transparent}.lyrics__block--annotate .lyrics__atomic--annotated{cursor:pointer}.lyrics__atomic--ling{border-radius:2px}.lyrics__annot-wrap{position:relative;display:inline}.lyrics__annot-wrap--has-notes{cursor:default}.lyrics__block--annotate .lyrics__annot-wrap--has-notes{cursor:pointer}.lyrics__annot-wrap--active .lyrics__atomic--annotated{outline:1px solid rgb(124 58 237 / 35%);outline-offset:2px;border-radius:2px}.lyrics__ling-markers{display:inline-flex;align-items:center;gap:2px;margin-left:1px;vertical-align:super;line-height:1;pointer-events:none;-webkit-user-select:none;user-select:none}.lyrics__ling-marker{display:inline-block;padding:0 3px;border-radius:3px;font-size:.48em;font-weight:800;line-height:1.2;color:#fff;letter-spacing:-.02em;text-transform:lowercase}.lyrics__atomic--vibrato{text-decoration-line:underline;text-decoration-style:wavy;text-decoration-color:#e11d48;text-decoration-thickness:1.5px;text-underline-offset:2px}.lyrics__line-row--past .lyrics__atomic--vibrato,.lyrics__block--past .lyrics__atomic--vibrato{text-decoration-color:#fda4af}.lyrics__line-row--past .lyrics__atomic--annotated{opacity:1}.lyrics__annot{display:inline-block;vertical-align:top}.lyrics__annot-inner{display:inline-flex;flex-direction:column;align-items:center;gap:4px}.lyrics__annot-inner--multi{vertical-align:bottom}.lyrics__annot-inner--multi .lyrics__badges{margin-bottom:1px}.lyrics__annot-inner--single .lyrics__badges{margin-top:1px}.lyrics__span{background:var(--accent-light);color:inherit;border-radius:3px;padding:0 2px;cursor:default;font-weight:inherit}.lyrics__block--annotate .lyrics__span{cursor:pointer;color:var(--accent-text);box-shadow:inset 0 -2px 0 var(--accent)}.lyrics__span--vibrato{background:#fdf2f8d9;box-shadow:inset 0 -2px #be123c80}.lyrics__block--annotate .lyrics__span--vibrato{box-shadow:inset 0 -2px #be123c80}.lyrics__block--past .lyrics__span--vibrato{background:#fdf2f873;box-shadow:inset 0 -2px #f472b673}.lyrics__badges{display:flex;flex-direction:row;flex-wrap:wrap;align-items:center;justify-content:center;-webkit-user-select:none;user-select:none;gap:4px}.lyrics__badge{display:inline-flex;flex-direction:row;align-items:center;gap:2px;padding:.1em .38em;font-size:.58em;font-weight:700;line-height:1;text-align:center;color:#fff;border-radius:999px;white-space:nowrap;box-shadow:0 1px 3px #00000026}.lyrics__badge-cat{font-size:1em;font-weight:800;text-transform:lowercase}.lyrics__badge-text{font-size:.9em;font-weight:500;opacity:.95;max-width:6em;overflow:hidden;text-overflow:ellipsis}.lyrics__badge--n{background:#2563eb}.lyrics__badge--o{background:#059669}.lyrics__badge--c{background:#d97706}.lyrics__badge--m{background:#7c3aed}.lyrics__badge--s{background:#0891b2}.lyrics__badge--w{background:#78716c}.lyrics__badge--v{background:#e11d48}.lyrics__badge--vv{background:#f472b6;font-size:.58em}.lyrics__block--active .lyrics__badge,.lyrics__line-row--active .lyrics__badge{font-size:.65em;padding:.18em .5em;box-shadow:0 2px 6px #0003}.lyrics__block--past .lyrics__badge{opacity:.85;box-shadow:none}.lyrics__block--past .lyrics__badge--n{background:#bfdbfe;color:#1d4ed8}.lyrics__block--past .lyrics__badge--o{background:#a7f3d0;color:#047857}.lyrics__block--past .lyrics__badge--c{background:#fde68a;color:#b45309}.lyrics__block--past .lyrics__badge--m{background:#ddd6fe;color:#6d28d9}.lyrics__block--past .lyrics__badge--s{background:#a5f3fc;color:#0e7490}.lyrics__block--past .lyrics__badge--w{background:#e7e5e4;color:#57534e}.lyrics__block--past .lyrics__badge--v{background:#fecdd3;color:#be123c}.lyrics__block--past .lyrics__badge--vv{background:#fce7f3;color:#db2777}.lyrics__line{font-size:18px;line-height:1.28;color:var(--text);cursor:text;transition:color .2s;padding:0}.lyrics__empty{font-style:italic;opacity:.5}.annot-popover__backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:200}.annot-popover{position:fixed;z-index:201;width:min(280px,calc(100vw - 24px));max-height:min(70vh,calc(100dvh - 16px));overflow-y:auto;background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:14px;box-shadow:0 8px 32px #0000001f}.annot-popover__quote{font-size:13px;color:var(--text-muted);font-style:italic;margin-bottom:10px;line-height:1.4;word-break:break-word}.annot-popover__notes{list-style:none;display:flex;flex-direction:column;gap:6px;margin-bottom:10px}.annot-popover__note-row{display:flex;align-items:center;gap:8px;padding:8px 10px;background:var(--surface-2);border-radius:8px}.annot-popover__cat-badge{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:6px;font-size:14px;font-weight:800;color:#fff;flex-shrink:0}.annot-popover__cat-badge--n{background:#2563eb}.annot-popover__cat-badge--o{background:#059669}.annot-popover__cat-badge--c{background:#d97706}.annot-popover__cat-badge--m{background:#7c3aed}.annot-popover__cat-badge--s{background:#0891b2}.annot-popover__cat-badge--w{background:#78716c}.annot-popover__cat-badge--v{background:#e11d48}.annot-popover__cat-badge--vv{background:#f472b6}.annot-popover__label{font-size:12px;font-weight:600;color:var(--text-muted);margin-bottom:8px;text-transform:uppercase;letter-spacing:.06em}.annot-popover__categories{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-bottom:10px}.annot-popover__cat{border:none;border-radius:8px;padding:12px 0;font-size:18px;font-weight:800;color:#fff;cursor:pointer;transition:transform .1s,opacity .1s}.annot-popover__cat:hover{transform:scale(1.05)}.annot-popover__cat--n{background:#2563eb}.annot-popover__cat--o{background:#059669}.annot-popover__cat--c{background:#d97706}.annot-popover__cat--m{background:#7c3aed}.annot-popover__cat--s{background:#0891b2}.annot-popover__cat--w{background:#78716c}.annot-popover__cat--v{background:#e11d48}.annot-popover__cat--vv{background:#f472b6;font-size:15px}.annot-popover__detail{width:100%;background:var(--bg);border:1px solid var(--border);border-radius:8px;color:var(--text);font-size:14px;font-family:inherit;padding:10px;margin-bottom:10px}.annot-popover__detail:focus{outline:none;border-color:var(--accent)}.annot-popover__textarea{width:100%;min-height:4.5rem;resize:vertical;background:var(--bg);border:1px solid var(--border);border-radius:8px;color:var(--text);font-size:14px;font-family:inherit;padding:10px;margin-bottom:10px;line-height:1.4}.annot-popover__textarea:focus{outline:none;border-color:var(--accent)}.annot-popover__cat--picked{box-shadow:0 0 0 2px #fff,0 0 0 4px var(--accent)}.annot-popover--ling{max-width:22rem}.lyrics__mode-toggle{display:inline-flex;border:1px solid var(--border);border-radius:6px;overflow:hidden}.lyrics__mode-toggle .btn{border-radius:0;border:0}.lyrics__mode-toggle .btn+.btn{border-left:1px solid var(--border)}.lyrics__badge--ling .lyrics__badge-text{max-width:12rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.lyrics__badges--ling{z-index:2}.annotation-schema--ling{border-color:#05966944}.ling-notes{margin-top:6px;display:flex;flex-direction:column;gap:4px}.ling-notes--past{opacity:.72}.ling-notes__item{border:1px solid var(--border);border-radius:6px;background:var(--surface-elevated, #f8faf8);overflow:hidden}.ling-notes__item--open{border-color:#05966955}.ling-notes__header{display:flex;align-items:stretch;gap:4px}.ling-notes__summary{flex:1;display:flex;align-items:center;gap:8px;padding:6px 8px;border:0;background:transparent;text-align:left;cursor:pointer;font:inherit;font-size:.8rem;color:var(--text);min-width:0}.ling-notes__summary:hover{background:#0596690f}.ling-notes__quote{font-weight:600;flex-shrink:0}.ling-notes__meta{flex:1;min-width:0;color:var(--text-muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.ling-notes__preview{color:var(--text);font-weight:400}.ling-notes__chevron{flex-shrink:0;color:var(--text-muted);font-size:.7rem}.ling-notes__edit{flex-shrink:0;align-self:center;margin-right:4px}.ling-notes__list{list-style:none;margin:0;padding:0 8px 8px;display:flex;flex-direction:column;gap:6px}.ling-notes__note{display:flex;flex-direction:column;gap:4px;padding:6px 8px;border-radius:4px;background:#fff;border:1px solid var(--border)}.ling-notes__cat{align-self:flex-start;font-size:.65rem;font-weight:600;text-transform:uppercase;letter-spacing:.04em;color:#fff;padding:2px 6px;border-radius:3px}.ling-notes__text{margin:0;font-size:.85rem;line-height:1.45;white-space:pre-wrap;word-break:break-word}.lyrics--ling-mode .lyrics__line-text{cursor:text}.annot-popover__note-text{flex:1;font-size:13px;color:var(--accent-text);font-weight:500}.annot-popover__note-remove{border:none;background:transparent;color:var(--text-muted);font-size:18px;line-height:1;cursor:pointer;padding:0 4px}.annot-popover__note-remove:hover{color:var(--error)}.annot-popover__input{width:100%;background:var(--bg);border:1px solid var(--border);border-radius:8px;color:var(--text);font-size:14px;font-family:inherit;padding:10px;resize:vertical;min-height:72px}.annot-popover__input:focus{outline:none;border-color:var(--accent)}.annot-popover__actions{display:flex;gap:6px;justify-content:flex-end;margin-top:10px}.annot-popover__delete{margin-right:auto;color:var(--error)!important}.lyrics__edit-row{display:grid;grid-template-columns:auto 1fr auto;gap:6px 8px;align-items:center;padding:10px;background:var(--surface);border:1px solid var(--border);border-radius:8px;flex-shrink:0;transition:border-color .15s,background .15s}.lyrics__edit-row--live{border-color:var(--accent);background:var(--accent-light)}.lyrics__edit-time{display:flex;align-items:center;gap:4px}.lyrics__set-time-btn{border:none;background:var(--accent);color:#fff;font-size:12px;font-weight:600;padding:8px 10px;border-radius:6px;cursor:pointer;white-space:nowrap;min-height:36px}.lyrics__set-time-btn:hover{background:var(--accent-hover)}.lyrics__time-nudge{display:flex;flex-direction:column;gap:2px}.lyrics__nudge-btn{width:28px;height:17px;border:1px solid var(--border);background:var(--surface-2);color:var(--text-muted);font-size:14px;line-height:1;border-radius:4px;cursor:pointer;padding:0}.lyrics__nudge-btn:hover{border-color:var(--accent);color:var(--accent-text)}.lyrics__input{background:var(--bg);border:1px solid var(--border);border-radius:6px;color:var(--text);font-size:14px;padding:8px 10px;width:100%;font-family:inherit}.lyrics__input:focus{outline:none;border-color:var(--accent)}.lyrics__input--time{width:72px;font-variant-numeric:tabular-nums;text-align:center;padding:8px 6px;font-size:13px}.lyrics__line-actions{display:flex;align-items:center;gap:2px}.lyrics__add-btn{width:32px;height:32px;border:none;background:transparent;color:var(--text-muted);font-size:20px;line-height:1;cursor:pointer;border-radius:6px}.lyrics__add-btn:hover{background:var(--accent-light);color:var(--accent-text)}.lyrics__remove-btn{width:32px;height:32px;border:none;background:transparent;color:var(--text-faint);font-size:20px;cursor:pointer;border-radius:6px}.lyrics__remove-btn:hover{background:#fee2e2;color:var(--error)}.lyrics__status{font-size:16px;color:var(--text-muted)}.lyrics__status--error{color:var(--error)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000059;display:flex;align-items:flex-end;justify-content:center;z-index:100;padding:0}.modal{background:var(--surface);border:1px solid var(--border);border-radius:16px 16px 0 0;width:100%;max-width:480px;max-height:90dvh;overflow-y:auto;padding:20px;padding-bottom:max(20px,env(safe-area-inset-bottom));box-shadow:0 -4px 24px #00000014}.modal__header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.modal__title{font-size:20px;font-weight:600}.modal__close{background:none;border:none;color:var(--text-muted);font-size:28px;line-height:1;cursor:pointer;padding:4px 8px;min-width:44px;min-height:44px}.modal__form{display:flex;flex-direction:column;gap:16px}.field{display:flex;flex-direction:column;gap:6px}.field__label{font-size:13px;font-weight:500;color:var(--text-muted)}.field__input{background:var(--bg);border:1px solid var(--border);border-radius:8px;color:var(--text);font-size:16px;padding:12px;min-height:44px;width:100%}.field__input:focus{outline:none;border-color:var(--accent)}.field__input--file{padding:10px;font-size:14px}.field__hint{font-size:12px;color:var(--text-muted)}.modal__loading{margin:0;color:var(--text-muted);font-size:.9rem}.modal__error{color:var(--error);font-size:14px}.modal__actions{display:flex;gap:10px;justify-content:flex-end;margin-top:4px}.modal__actions .btn{flex:1}.mobile-song-bar{display:none}.mobile-song-bar__search{display:block;padding:0 10px 8px}.mobile-song-bar__controls{display:flex;align-items:center;gap:6px;padding:0 10px;padding-bottom:max(8px,env(safe-area-inset-bottom))}.mobile-song-bar__empty{font-size:13px;color:var(--text-muted);padding:8px 14px;white-space:nowrap}@media(max-width:768px){.mobile-song-bar{display:flex;flex-direction:column;position:fixed;bottom:0;left:0;right:0;z-index:50;background:var(--surface);border-top:1px solid var(--border);padding-top:8px;box-shadow:0 -2px 12px #0000000f}.mobile-song-bar__nav{flex-shrink:0;width:40px;height:40px;border:none;border-radius:8px;background:var(--surface-2);color:var(--text);font-size:22px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center}.mobile-song-bar__nav:disabled{opacity:.3;cursor:default}.mobile-song-bar__scroll{flex:1;display:flex;gap:8px;overflow-x:auto;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;scrollbar-width:none;min-width:0}.mobile-song-bar__scroll::-webkit-scrollbar{display:none}.mobile-song-bar__chip{flex-shrink:0;scroll-snap-align:center;display:flex;flex-direction:column;align-items:flex-start;gap:1px;padding:8px 14px;border:1px solid var(--border);border-radius:20px;background:var(--bg);color:inherit;cursor:pointer;max-width:160px;min-height:44px;justify-content:center}.mobile-song-bar__chip--active{background:var(--accent-light);border-color:var(--accent)}.mobile-song-bar__chip-title{font-size:13px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:130px}.mobile-song-bar__chip--active .mobile-song-bar__chip-title{color:var(--accent-text)}.mobile-song-bar__chip-artist{font-size:11px;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:130px}.mobile-song-bar__add{flex-shrink:0;width:40px;height:40px;border:none;border-radius:8px;background:var(--accent);color:#fff;font-size:22px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center}.app--playing .video-list{display:none}.player__mobile-top{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-shrink:0;padding-bottom:8px;margin-bottom:4px;border-bottom:1px solid var(--border)}.player__mobile-top .btn{flex-shrink:0}.app:not(.app--playing) .main{display:none}.video-list{width:100%;border-right:none;padding:16px;padding-top:max(16px,env(safe-area-inset-top));padding-bottom:max(16px,env(safe-area-inset-bottom))}.player{flex-direction:column;gap:12px;padding:12px;padding-top:max(12px,env(safe-area-inset-top));padding-bottom:calc(108px + env(safe-area-inset-bottom))}.player__left{flex:none}.player__video{flex:none;aspect-ratio:16 / 9;max-height:36vh}.player__right{flex:1;border-left:none;padding-left:0;border-top:1px solid var(--border);padding-top:12px;min-height:0;overflow:hidden}.lyrics{--lyrics-mobile-line: 3.25rem;max-height:calc(var(--lyrics-mobile-line) * 5);overflow-y:auto;gap:2px;scroll-padding-block:1.25em;-webkit-overflow-scrolling:touch}.lyrics__hint{display:none}.lyrics>div{scroll-margin-block:.1em}.lyrics__line-content,.lyrics__line--embedded{line-height:1.2}.lyrics__badge-layer{min-height:.5em}.player__title{font-size:18px}.lyrics__line{font-size:16px;padding:0}.lyrics-panel__body{flex-direction:column;gap:10px;min-height:14rem}.lyrics-panel__main{min-height:10rem;flex:1 1 auto}.annot-notepad-wrap:not([hidden]){width:auto;border-top:1px solid var(--border);padding:10px 0 0;max-height:12rem;flex-shrink:0;overflow-y:auto}.annot-notepad-wrap:not([hidden]) .annot-notepad{width:auto;border-left:none;padding-left:0;max-height:none}.placeholder{display:none}}@media(min-width:769px){.modal-overlay{align-items:center;padding:24px}.modal{border-radius:16px;padding-bottom:20px}.modal__actions .btn{flex:none;min-width:100px}.app .main{display:flex}}.login-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:var(--bg)}.login-card{width:min(100%,380px);padding:32px;border-radius:16px;background:var(--surface);border:1px solid var(--border);box-shadow:0 12px 40px #0000002e}.login-card__title{margin:0;font-size:1.75rem;font-weight:700;letter-spacing:-.02em}.login-card__subtitle{margin:0 0 24px;color:var(--text-muted)}.login-card__form{display:flex;flex-direction:column;gap:16px}.login-card__error{margin:0;color:#e57373;font-size:.9rem}.login-card__submit{width:100%;margin-top:4px}.video-list__account{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:0 16px 12px;border-bottom:1px solid var(--border)}.video-list__username{font-size:.85rem;color:var(--text-muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.home{display:flex;height:100dvh;overflow:hidden}.home__sidebar{width:min(100%,340px);flex-shrink:0;background:var(--surface);border-right:1px solid var(--border);padding:24px 20px;overflow-y:auto;display:flex;flex-direction:column;gap:28px}.home__brand{font-size:24px;font-weight:700;letter-spacing:-.02em;margin:0}.login-card .app-brand{justify-content:center;margin-bottom:4px}.home__tagline{margin-top:4px;font-size:13px;color:var(--text-muted)}.home__section-title{font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);margin:0 0 12px}.home__section-header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}.home__section-header .home__section-title{margin-bottom:0}.home__load-error{margin:0;font-size:.9rem;color:#e57373}.home__songs{list-style:none;display:flex;flex-direction:column;gap:8px}.home__song{width:100%;text-align:left;padding:10px 12px;border-radius:10px;border:1px solid var(--border);background:var(--surface-2);cursor:pointer;transition:border-color .15s,background .15s}.home__song:hover{border-color:var(--accent-light)}.home__song--active{border-color:var(--accent);background:var(--accent-light)}.home__song-title{display:block;font-size:14px;font-weight:600;color:var(--text)}.home__song-artist{display:block;margin-top:2px;font-size:12px;color:var(--text-muted)}.home__steps{list-style:none;display:flex;flex-direction:column;gap:14px}.home__step{display:flex;flex-direction:column;gap:4px;font-size:14px;line-height:1.45;color:var(--text-muted)}.home__step strong{color:var(--text);font-weight:600}.home__login{margin-top:auto;padding-top:8px;border-top:1px solid var(--border)}.home__demo{flex:1;min-width:0;overflow:hidden}.home__demo .player{height:100%}.login-form__title{font-size:18px;font-weight:600;margin-bottom:4px}.login-form__subtitle{font-size:13px;color:var(--text-muted);margin-bottom:16px;line-height:1.45}.login-form{display:flex;flex-direction:column;gap:12px}.login-form__error{margin:0;color:var(--error);font-size:13px}.login-form__submit{width:100%;margin-top:4px}.player__demo-badge{font-size:12px;font-weight:500;color:var(--accent-text);background:var(--accent-light);padding:6px 10px;border-radius:6px;margin-bottom:12px;text-align:center}@media(max-width:900px){.home{flex-direction:column;overflow-x:hidden;overflow-y:auto;height:100dvh;-webkit-overflow-scrolling:touch}.home__sidebar{display:contents}.home__header{order:1;padding:16px 20px 0;background:var(--surface)}.home__demo-list{order:2;padding:12px 20px 16px;background:var(--surface);border-bottom:1px solid var(--border)}.home__demo{order:3;flex:none;min-height:0;overflow:visible;width:100%}.home__intro{order:4;padding:20px;background:var(--surface);border-top:1px solid var(--border)}.home__login{order:5;margin-top:0;padding:0 20px max(20px,env(safe-area-inset-bottom));background:var(--surface);border-top:1px solid var(--border)}.home__demo .player{height:auto;min-height:0;overflow:visible;padding-bottom:12px}.home__demo .player__left{flex:none}.home__demo .player__right{flex:none;min-height:0;overflow:hidden;display:flex;flex-direction:column}.home__demo .player .lyrics{flex:none;--lyrics-mobile-line: 3.25rem;max-height:calc(var(--lyrics-mobile-line) * 5);overflow-y:auto;min-height:0;-webkit-overflow-scrolling:touch}}@media(max-width:768px){.home__demo .player{flex-direction:column;gap:12px;padding:12px;padding-bottom:max(12px,env(safe-area-inset-bottom))}.home__demo .player__video{flex:none;aspect-ratio:16 / 9;max-height:36vh}.home__demo .player__right{border-left:none;padding-left:0;border-top:1px solid var(--border);padding-top:12px}}