:root{--color-text-secondary: #6b7280;--speaker-color: #0ea5e9}.spatial-page{font-family:Arial,sans-serif;max-width:1200px;margin:0 auto;padding:var(--spacing-lg);display:flex;flex-direction:column;gap:var(--panel-gap);min-height:100vh}#spatialContainer{display:flex;flex-direction:column;gap:10px}.spatial-header{padding:var(--spacing-md);flex:none}.demo-nav{margin-bottom:var(--spacing-md);padding-bottom:var(--spacing-sm);border-bottom:1px solid var(--color-border)}.nav-back-link{font-size:.85rem;color:var(--color-primary);text-decoration:none;font-weight:500;display:inline-flex;align-items:center;gap:4px;transition:opacity .2s}.nav-back-link:hover{opacity:.8;text-decoration:underline}.title-container{display:flex;align-items:center;gap:var(--spacing-sm)}.main-title-container{display:flex;align-items:center;gap:var(--spacing-sm);flex:1}.header-info{display:flex;flex-direction:column;gap:.5rem}.header-info--title{display:flex;flex-direction:row;gap:.85rem;align-items:center}.main-title{font-size:1.25rem;font-weight:600;margin:0;color:var(--color-primary)}.version-badge{background:var(--color-primary);color:var(--color-surface);padding:.2rem .5rem;border-radius:var(--border-radius);font-size:.8rem;font-weight:500}.copyright{font-size:.8rem;color:var(--color-text-secondary)}.spatial-subtitle{margin-top:var(--spacing-md);padding-top:var(--spacing-md);border-top:1px solid var(--color-border);display:flex;align-items:center;gap:10px}.spatial-subtitle .tagline{font-size:1.75rem;font-weight:700;font-style:normal;color:var(--speaker-color);letter-spacing:-.01em}.speaker-test{display:inline-flex;align-items:center;padding:3px 12px;font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--color-surface);background:var(--color-text-secondary);border-radius:999px;line-height:1.4;white-space:nowrap}.theme-toggle-container{display:flex;gap:5px;align-items:center}.theme-icon{display:grid;grid-template-columns:1fr;grid-template-rows:1fr;height:24px;width:24px}.theme-icon--moon,.theme-icon--sun{grid-row:1;grid-column:1;width:24px;height:24px;transition:opacity .3s}.theme-icon--moon{opacity:0}.theme-icon--sun{opacity:1}.theme-toggle{display:flex;align-items:center;margin-right:.5rem}.theme-switch{position:relative;display:inline-block;width:40px;height:20px}.theme-switch input{opacity:0;width:0;height:0}.theme-slider{position:absolute;cursor:pointer;top:0;right:0;bottom:0;left:0;background-color:#ccc;transition:.4s;border-radius:20px}.theme-slider:before{position:absolute;content:"";height:16px;width:16px;left:2px;bottom:2px;background-color:#fff;transition:.4s;border-radius:50%}input:checked+.theme-slider{background-color:#2196f3}input:checked+.theme-slider:before{transform:translate(20px)}.preload-btn{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-sm);min-height:36px}.spinner{display:none;width:16px;height:16px;border:2px solid #f3f3f3;border-top:2px solid #3498db;border-radius:50%;animation:spin 1s linear infinite}.preload-btn.loading .spinner{display:block}.preload-btn.loading .button-text{opacity:.7}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.spatial-main-layout{display:flex;flex-direction:row;gap:var(--spacing-md);align-items:stretch}.spatial-room-section{flex:1;min-width:0}.spatial-settings-panel{width:260px;flex-shrink:0;padding:var(--spacing-md);background:var(--color-surface-secondary);border:1px solid var(--color-border);border-radius:var(--border-radius);display:flex;flex-direction:column;align-self:stretch}.spatial-settings-panel h4{margin:0 0 var(--spacing-xs) 0;font-size:.9rem;color:var(--color-text);flex-shrink:0}.spatial-settings-panel .spatial-settings-scroll{flex:1;overflow-y:auto;padding-right:4px;min-height:0}.spatial-settings-panel .spatial-settings{display:flex;flex-direction:column;gap:var(--spacing-sm);margin-top:var(--spacing-sm);margin-left:0;flex-wrap:nowrap}.spatial-settings-panel .spatial-setting-group{display:flex;flex-direction:column;gap:2px}.spatial-settings-panel .spatial-setting-group label{font-size:.78rem;color:var(--color-text)}.spatial-settings-panel .spatial-setting-group select,.spatial-settings-panel .spatial-setting-group input{padding:3px 6px;border:1px solid var(--color-border);border-radius:var(--border-radius);background:var(--color-surface);color:var(--color-text);font-size:.8rem}.spatial-settings-panel .spatial-setting-group input[type=number]{width:100%;box-sizing:border-box}.spatial-settings-scroll::-webkit-scrollbar{width:5px}.spatial-settings-scroll::-webkit-scrollbar-track{background:transparent}.spatial-settings-scroll::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:3px}.spatial-info{padding:var(--spacing-md)}.spatial-description{margin:0 0 var(--spacing-md) 0;font-size:.9rem;color:var(--color-text);line-height:1.6}.sound-selector-row{display:flex;align-items:center;gap:var(--spacing-md);flex-wrap:wrap}.sound-selector-label{font-size:.875rem;font-weight:500;color:var(--color-text);white-space:nowrap}.sound-select-dropdown{background:var(--color-surface-secondary);color:var(--color-text);border:1px solid var(--color-border);padding:6px 12px;border-radius:var(--border-radius);font-size:.875rem;cursor:pointer;transition:all .2s;min-width:200px;-webkit-appearance:auto;-moz-appearance:auto;appearance:auto}.sound-select-dropdown:focus{outline:none;border-color:var(--speaker-color);box-shadow:0 0 0 2px color-mix(in srgb,var(--speaker-color) 30%,transparent)}.audio-mode-label{font-size:.875rem;font-weight:500;color:var(--color-text);white-space:nowrap}.audio-mode-select{background:var(--color-surface-secondary);color:var(--color-text);border:1px solid var(--color-border);padding:6px 12px;border-radius:var(--border-radius);font-size:.875rem;cursor:pointer;min-width:180px;-webkit-appearance:auto;-moz-appearance:auto;appearance:auto}.audio-mode-select:focus{outline:none;border-color:var(--speaker-color);box-shadow:0 0 0 2px color-mix(in srgb,var(--speaker-color) 30%,transparent)}.spatial-room-panel{padding:var(--spacing-md)}.room-layout-wrapper{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-sm)}.room-label-top,.room-label-bottom{font-size:.8rem;color:var(--color-text-secondary);font-weight:500}.room-layout{width:100%;max-width:600px}.room-border{display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,auto);gap:12px;padding:20px;border:2px solid var(--color-border);border-radius:12px;background:var(--color-surface-secondary);position:relative}.spatial-tabs{display:flex;gap:0;margin:0;padding:0 12px;position:relative;z-index:1}.spatial-tab{background:var(--color-surface-secondary);border:1px solid var(--color-border);border-bottom:none;padding:10px 24px;font-size:.875rem;font-weight:500;color:var(--color-text-secondary);cursor:pointer;border-radius:8px 8px 0 0;transition:all .2s ease;white-space:nowrap;position:relative;margin-right:2px;margin-bottom:-1px}.spatial-tab:hover:not(.active){color:var(--color-text);background:color-mix(in srgb,var(--color-surface) 70%,var(--color-surface-secondary))}.spatial-tab.active{background:var(--color-surface);color:var(--color-text);font-weight:600;border-color:var(--color-border);border-bottom:1px solid var(--color-surface)}.spatial-tab.active:after{content:"";position:absolute;bottom:-1px;left:0;right:0;height:2px;background:var(--color-surface)}.spatial-tab-content-wrapper{background:var(--color-surface);border:1px solid var(--color-border);border-radius:0 8px 8px;padding:var(--spacing-md);position:relative;z-index:0}.spatial-tab-content{animation:tabFadeIn .25s ease}@keyframes tabFadeIn{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}.free-move-desc{margin:0 0 var(--spacing-md) 0;font-size:.85rem;color:var(--color-text-secondary);line-height:1.5;text-align:center}.free-move-room{display:block!important;height:300px;position:relative;cursor:none;overflow:hidden;min-height:300px}.free-move-room.free-move-active{border-color:var(--speaker-color);box-shadow:0 0 20px color-mix(in srgb,var(--speaker-color) 20%,transparent)}.free-move-tv-label{position:absolute;top:10px;left:50%;transform:translate(-50%);font-size:1.5rem;opacity:.6;pointer-events:none}.free-move-listener{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:2rem;opacity:.5;pointer-events:none;z-index:1}.free-move-speaker{position:absolute;font-size:1.8rem;line-height:1;transform:translate(-50%,-50%);rotate:var(--speaker-angle, 0deg);transform-origin:center;pointer-events:none;z-index:2;transition:rotate .05s linear;will-change:rotate;filter:drop-shadow(0 0 6px color-mix(in srgb,var(--speaker-color) 60%,transparent))}.free-move-room.free-move-active .free-move-speaker{font-size:2.2rem;filter:drop-shadow(0 0 10px color-mix(in srgb,var(--speaker-color) 80%,transparent))}.free-move-controls{display:flex;justify-content:center;align-items:center;gap:var(--spacing-md);margin-top:var(--spacing-md);flex-wrap:wrap}.toggle-card{display:flex;align-items:center;gap:10px;padding:14px 20px;background:var(--color-surface-secondary);border:1px solid var(--color-border);border-radius:12px;min-width:170px;transition:border-color .25s ease,box-shadow .25s ease}.toggle-card.is-active{border-color:var(--speaker-color);box-shadow:0 0 12px color-mix(in srgb,var(--speaker-color) 20%,transparent)}.toggle-card-header{display:flex;align-items:center;gap:8px}.toggle-card-icon{font-size:1.15rem;line-height:1}.toggle-card-label{font-size:.85rem;font-weight:600;color:var(--color-text);-webkit-user-select:none;user-select:none}.toggle-switch{position:relative;display:inline-block;width:48px;height:26px;flex-shrink:0}.toggle-switch input{opacity:0;width:0;height:0}.toggle-slider{position:absolute;cursor:pointer;top:0;right:0;bottom:0;left:0;background-color:silver;transition:.3s ease;border-radius:26px}.toggle-slider:before{position:absolute;content:"";height:20px;width:20px;left:3px;bottom:3px;background:#fff;transition:.3s ease;border-radius:50%;box-shadow:0 1px 3px #0003}input:checked+.toggle-slider{background-color:var(--speaker-color)}input:checked+.toggle-slider:before{transform:translate(22px)}.toggle-card-status{font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.04em;color:var(--color-text-secondary);transition:color .25s ease}.toggle-card.is-active .toggle-card-status{color:var(--speaker-color)}.mute-btn{display:inline-flex;align-items:center;justify-content:center;padding:8px;background:var(--color-surface-secondary);border:1px solid var(--color-border);border-radius:8px;cursor:pointer;transition:border-color .25s ease,box-shadow .25s ease,color .25s ease;color:var(--color-text-secondary);line-height:1}.mute-btn:hover{border-color:var(--speaker-color);box-shadow:0 0 10px color-mix(in srgb,var(--speaker-color) 20%,transparent);color:var(--speaker-color)}.mute-btn:active{transform:scale(.95)}.mute-btn.is-muted{border-color:#ef4444;color:#ef4444}.mute-btn.is-muted:hover{box-shadow:0 0 10px #ef444433}.speaker-btn{display:flex;flex-direction:column;align-items:center;gap:4px;padding:12px 8px;background:var(--color-surface);border:2px solid var(--color-border);border-radius:10px;cursor:pointer;transition:all .2s;color:var(--color-text);min-width:80px}.speaker-btn:not(:disabled):hover{border-color:var(--speaker-color);background:color-mix(in srgb,var(--speaker-color) 10%,var(--color-surface));transform:scale(1.05)}.speaker-btn.active{border-color:var(--speaker-color);background:var(--speaker-color);color:#fff;box-shadow:0 0 12px color-mix(in srgb,var(--speaker-color) 60%,transparent)}.speaker-btn:disabled{opacity:.5;cursor:not-allowed}.speaker-icon svg{width:20px;height:20px}.speaker-short-label{font-size:.9rem;font-weight:700;line-height:1}.speaker-label{font-size:.65rem;color:inherit;opacity:.8;text-align:center;line-height:1.2}.listener-dot{display:flex;flex-direction:column;align-items:center;gap:4px;padding:12px 8px;background:transparent}.listener-icon{font-size:1.4rem;line-height:1}.listener-label{font-size:.75rem;color:var(--color-text-secondary)}.sub-row{display:flex;justify-content:center;margin-top:var(--spacing-sm)}.sub-btn{flex-direction:row;gap:8px;min-width:160px}.active-speaker-info{margin-top:var(--spacing-md);padding:var(--spacing-sm) var(--spacing-md);background:var(--color-surface-secondary);border-radius:var(--border-radius);display:flex;flex-direction:column;gap:4px;min-height:44px;justify-content:center}.active-label{font-size:.875rem;color:var(--color-text)}.active-coords{font-size:.8rem;color:var(--color-text-secondary);font-family:monospace}.channel-note{font-size:.75rem;color:var(--color-text-secondary);font-family:monospace}.selector-row-divider{display:inline-block;width:1px;height:22px;background:var(--color-border);margin:0 4px;flex-shrink:0}.channel-info{display:inline-flex;align-items:center;background:var(--color-surface-secondary);border:1px solid var(--color-border);border-radius:20px;padding:4px 12px;font-size:.75rem;font-weight:500;color:var(--color-text-secondary);white-space:nowrap;transition:background .2s,border-color .2s,color .2s}.channel-info--ok{background:color-mix(in srgb,#22c55e 12%,var(--color-surface-secondary));border-color:color-mix(in srgb,#22c55e 40%,transparent);color:color-mix(in srgb,#16a34a 80%,var(--color-text))}.channel-info--warn{background:color-mix(in srgb,#f97316 12%,var(--color-surface-secondary));border-color:color-mix(in srgb,#f97316 40%,transparent);color:color-mix(in srgb,#ea580c 80%,var(--color-text))}body.dark-theme .channel-info--ok{background:color-mix(in srgb,#22c55e 15%,#1e1e1e);border-color:color-mix(in srgb,#22c55e 35%,transparent);color:#86efac}body.dark-theme .channel-info--warn{background:color-mix(in srgb,#f97316 15%,#1e1e1e);border-color:color-mix(in srgb,#f97316 35%,transparent);color:#fdba74}.spatial-coords-panel{padding:var(--spacing-md)}.spatial-coords-panel h4{margin:0 0 var(--spacing-sm) 0;font-size:.95rem;color:var(--color-text)}.coords-desc{font-size:.8rem;color:var(--color-text-secondary);margin:0 0 var(--spacing-md) 0;line-height:1.5}.coords-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:6px}.coord-row{display:flex;justify-content:space-between;align-items:center;padding:5px 8px;background:var(--color-surface-secondary);border-radius:var(--border-radius);border:1px solid var(--color-border);transition:all .2s}.coord-row.active{border-color:var(--speaker-color);background:color-mix(in srgb,var(--speaker-color) 15%,var(--color-surface))}.coord-label{font-size:.8rem;font-weight:600;color:var(--color-text)}.coord-value{font-size:.75rem;color:var(--color-text-secondary);font-family:monospace}body.dark-theme{--color-text-secondary: #b0b0b0}body.dark-theme .theme-icon--moon{opacity:1;stroke:#ffb74d}body.dark-theme .theme-icon--sun{opacity:0}body.dark-theme .room-border{border-color:#404040;background:#1a1a1a}body.dark-theme .sound-select-dropdown,body.dark-theme .audio-mode-select{background:#2a2a2a;border-color:#404040}body.dark-theme .coord-row{background:#1a1a1a;border-color:#404040}body.dark-theme .active-speaker-info{background:#1a1a1a}body.dark-theme .spatial-tab-content-wrapper{background:#1a1e24;border-color:#404040}body.dark-theme .spatial-tab{background:#2a2d35;border-color:#404040;color:#999}body.dark-theme .spatial-tab:hover:not(.active){color:#ccc;background:#353840}body.dark-theme .spatial-tab.active{background:#1a1e24;color:#e0e0e0;border-color:#404040;border-bottom-color:#1a1e24}body.dark-theme .spatial-tab.active:after{background:#1a1e24}body.dark-theme .free-move-tv-label{filter:invert(1)}body.dark-theme .free-move-listener{filter:invert(1) brightness(1.2);opacity:.8}body.dark-theme .listener-icon{filter:invert(1);opacity:.9}@media (max-width: 600px){.spatial-page{padding:var(--spacing-sm)}.room-border{gap:6px;padding:12px}.speaker-btn{min-width:60px;padding:8px 4px}.speaker-label{display:none}}