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.delete-board-btn{opacity:1;visibility:visible}.board-card-info{display:flex;gap:12px;font-size:13px;color:var(--text-secondary)}.board-card.create-form{border:2px dashed var(--border);padding:18px;align-items:center;justify-content:center}.board-card.create-new{border:1px dashed var(--border);background:var(--surface-muted);align-items:center;justify-content:center;color:var(--text-secondary);transition:background .2s ease,border-color .2s ease,color .2s ease}.board-card.create-new:hover{border-color:var(--accent);color:var(--accent);background:#4c63b614}.board-card.create-new:focus-visible{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.create-new-content{display:flex;flex-direction:column;align-items:center;gap:8px;font-weight:600}.create-icon{font-size:28px;line-height:1}.board-title-input{width:100%;border-radius:12px;border:1px solid var(--border);padding:12px 16px;font-size:16px;font-family:inherit;transition:border-color .2s ease,box-shadow .2s 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16px}.immersion-progress{font-size:13px}.immersion-content{padding:20px 16px;align-items:flex-start}.immersion-card{padding:24px 20px;border-radius:var(--radius-md)}.immersion-footer{padding:12px 8px;gap:8px;flex-wrap:nowrap}.immersion-nav-btn{padding:10px 12px;font-size:13px;min-width:0;flex:1;white-space:nowrap}.immersion-play-btn,.immersion-record-btn{padding:10px;font-size:18px;min-width:44px;flex-shrink:0}}:root{font-family:Inter,Noto Sans SC,-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif;line-height:1.5;font-weight:400;color:#2f3437;background-color:#f7f6f3;color-scheme:light;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;--bg-muted: #f7f6f3;--surface: #ffffff;--surface-muted: #f4f3f0;--border: #e3e2e0;--border-strong: #d5d3d0;--border-subtle: #ecebea;--text-primary: #2f3437;--text-secondary: #787774;--text-tertiary: #9b9a97;--accent: #4c63b6;--accent-strong: #3b4fa2;--accent-soft: rgba(76, 99, 182, .12);--radius-lg: 18px;--radius-md: 12px;--radius-sm: 8px;--shadow-sm: 0 18px 45px rgba(15, 22, 33, .06);--shadow-xs: 0 6px 20px rgba(15, 22, 33, .05);--max-width: 1400px;--column-width: 360px;--header-height: 74px}@media (min-width: 1400px){:root{--max-width: calc(100vw - 120px) }}@media (min-width: 1920px){:root{--max-width: calc(100vw - 160px) }}*{margin:0;padding:0;box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:var(--bg-muted);color:var(--text-primary)}#root{width:100%;min-height:100vh}button{font-family:inherit}a{color:inherit;text-decoration:none}