.board-start-layer{pointer-events:none;z-index:var(--z-ui);font-family:var(--font-sans);position:absolute;inset:0}.board-start-empty{text-align:center;pointer-events:auto;width:min(420px,100% - 40px);position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.board-start-empty h2{color:var(--color-text,#282828);letter-spacing:-.025em;margin:0 0 12px;font-size:clamp(24px,4vw,30px);font-weight:500;line-height:1.2}.board-start-empty p{color:var(--color-text-muted,#71717a);margin:0;font-size:14px;line-height:1.6}.board-start-empty button{font:inherit;cursor:pointer;border:0;justify-content:center;align-items:center;gap:9px;font-size:14px;transition:background .15s,color .15s;display:inline-flex}.board-start-empty .board-start-upload{color:#f8f8f8;background:#0e8bff;border-radius:32px;gap:8px;min-height:46px;margin-top:26px;padding:12px 20px;font-size:15px;font-weight:500;transition:background .12s,transform .12s}.board-start-upload:hover{background:#0078e0;transform:scale(1.01)}.board-start-upload:active{background:#006acc;transform:scale(.98)}.board-start-actions{flex-wrap:wrap;justify-content:center;gap:8px;margin-top:12px;display:flex}.board-start-actions button{min-height:44px;color:var(--color-text,#474e5a);background:0 0;border-radius:12px;padding:10px 12px}.board-start-actions button:hover{background:#8080801f}.board-start-empty .board-start-hint{margin-top:26px;font-size:12px}.board-start-hint kbd{font:inherit;color:var(--color-text,#474e5a);margin-left:5px}.board-start-add{right:max(48px, env(safe-area-inset-right));bottom:max(48px, env(safe-area-inset-bottom));color:#474e5a;cursor:pointer;pointer-events:auto;background:#fdfdfd;border:0;border-radius:20px;place-items:center;width:56px;height:56px;display:grid;position:absolute;box-shadow:0 1px 1px #0000000d,0 2px 8px 2px #0000000d,0 16px 32px #0000001a}.board-start-add:hover{background:#eaeaea}.board-start-add svg{transition:transform .18s}.board-start-layer button:focus-visible{outline-offset:4px;outline:2px solid #5ca7ff}@media (width<=600px){.board-start-add{right:max(20px, env(safe-area-inset-right));bottom:max(48px, env(safe-area-inset-bottom))}}@media (prefers-reduced-motion:reduce){.board-start-layer button,.board-start-add svg{transition:none}}