:root{--board-bg: #faf8f4;--panel: #fffaf0;--panel-strong: #ffffff;--ink: #22302f;--muted: #687876;--accent: #c45d3e;--accent-2: #2a7a6d;--line: #ded8ce;color:var(--ink);background:var(--board-bg);font-family:Outfit,Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;overflow:hidden}button,input,select,textarea{font:inherit}button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--line);border-radius:8px;background:var(--panel-strong);color:var(--ink);min-height:40px;padding:8px 12px;cursor:pointer}button:hover{border-color:var(--accent-2)}button.primary{background:var(--accent-2);border-color:var(--accent-2);color:#fff}button.icon-only{width:40px;padding:8px}button.danger{width:100%;margin-top:12px;border-color:#efb5ad;color:#9d2c21}.app-shell{width:100vw;height:100vh;background:var(--board-bg)}.theme-eink{--board-bg: #e8e8e2;--panel: #f6f6f0;--accent: #111;--accent-2: #444}.theme-ocean{--board-bg: #e8f5fb;--panel: #f8fcff;--accent: #0369a1;--accent-2: #087f8c}.theme-forest{--board-bg: #edf8ed;--panel: #fbfffb;--accent: #2f7d32;--accent-2: #1b6b5f}.topbar{position:fixed;z-index:20;top:14px;left:14px;right:14px;display:grid;grid-template-columns:190px 44px minmax(180px,1fr) 128px auto auto auto;gap:10px;align-items:center;padding:10px;border:1px solid var(--line);border-radius:8px;background:color-mix(in srgb,var(--panel) 92%,transparent);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);box-shadow:0 10px 30px #22302f14}.zoom-controls{display:grid;grid-template-columns:36px 54px 36px 36px;align-items:center;gap:6px;color:var(--muted);font-size:13px}.zoom-controls button{min-height:36px;padding:6px}.zoom-controls span{text-align:center}.brand{display:flex;flex-direction:column;gap:2px}.brand strong{font-size:16px}.brand span{color:var(--muted);font-size:12px}.title-input,.topbar select,.inspector input,.inspector select,.inspector textarea{width:100%;min-height:40px;border:1px solid var(--line);border-radius:8px;background:var(--panel-strong);color:var(--ink);padding:8px 10px}.toolbar{position:fixed;z-index:18;top:96px;left:14px;display:flex;flex-direction:column;gap:8px;width:96px;padding:10px;border:1px solid var(--line);border-radius:8px;background:color-mix(in srgb,var(--panel) 92%,transparent);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.board-library{position:fixed;z-index:22;top:96px;left:124px;width:min(380px,calc(100vw - 138px));max-height:calc(100vh - 116px);display:flex;flex-direction:column;gap:12px;padding:12px;border:1px solid var(--line);border-radius:8px;background:color-mix(in srgb,var(--panel) 96%,transparent);box-shadow:0 18px 46px #22302f24;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.library-actions{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px}.library-actions button{min-width:0}.board-list{display:flex;flex-direction:column;gap:8px;overflow:auto}.board-list p{margin:8px 4px;color:var(--muted)}.board-row{display:grid;grid-template-columns:minmax(0,1fr) 36px;gap:8px;align-items:center;padding:10px;border:1px solid var(--line);border-radius:8px;background:var(--panel-strong);cursor:pointer}.board-row:hover,.board-row.is-active{border-color:var(--accent-2)}.board-row span{min-width:0}.board-row strong,.board-row small{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.board-row small{margin-top:4px;color:var(--muted);font-size:12px}.board-row .icon-danger{min-height:34px;width:34px;padding:6px;border-color:#efb5ad;color:#9d2c21}.toolbar button{flex-direction:column;min-height:64px;padding:8px 6px}.toolbar span{font-size:12px}.inspector{position:fixed;z-index:18;top:96px;right:14px;width:min(300px,calc(100vw - 28px));max-height:calc(100vh - 116px);overflow:auto;display:flex;flex-direction:column;gap:10px;padding:14px;border:1px solid var(--line);border-radius:8px;background:color-mix(in srgb,var(--panel) 94%,transparent);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.inspector h2{margin:0;font-size:18px;text-transform:capitalize}.inspector p{color:var(--muted);line-height:1.4}.inspector p.warning{margin:0;padding:10px;border:1px solid #edc268;border-radius:8px;background:#fff7df;color:#7c5b10;font-size:13px}.inspector label{display:flex;flex-direction:column;gap:6px;color:var(--muted);font-size:13px}.inspector textarea{min-height:120px;resize:vertical}.inspector-title{display:flex;align-items:center;justify-content:space-between}.canvas-shell{position:fixed;top:0;right:0;bottom:0;left:0;overflow:hidden;background:var(--board-bg)}.canvas-shell.is-presentation{cursor:default}.canvas-shell.is-presentation .iframe-overlays iframe{border-color:transparent;box-shadow:0 10px 34px #22302f1f}.iframe-overlays{position:fixed;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:2}.iframe-overlays iframe{position:absolute;border:1px solid var(--accent-2);border-radius:12px;background:#fff;pointer-events:auto}.share-toast{position:fixed;z-index:30;left:50%;bottom:18px;transform:translate(-50%);display:flex;align-items:center;gap:10px;max-width:min(720px,calc(100vw - 28px));padding:10px;border:1px solid var(--line);border-radius:8px;background:var(--panel-strong);box-shadow:0 16px 40px #22302f29}.share-toast span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.share-list{position:fixed;z-index:29;right:328px;bottom:18px;display:flex;flex-direction:column;gap:8px;width:min(420px,calc(100vw - 356px))}.share-list div{display:grid;grid-template-columns:minmax(0,1fr) 38px;gap:8px;align-items:center;padding:8px;border:1px solid var(--line);border-radius:8px;background:var(--panel-strong);box-shadow:0 12px 32px #22302f1a}.share-list span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--muted);font-size:13px}.share-list button{min-height:36px;padding:6px}.exit-presentation{position:fixed;z-index:40;top:16px;right:16px}.empty-state{display:grid;min-height:100vh;place-content:center;gap:8px;padding:24px;text-align:center;background:var(--board-bg)}.empty-state h1{margin:0;color:var(--accent-2);font-size:clamp(2rem,6vw,4rem)}.empty-state p{margin:0;color:var(--muted)}@media(max-width:820px){.topbar{grid-template-columns:44px 1fr auto}.brand,.topbar select,.zoom-controls{display:none}.toolbar{top:auto;right:14px;bottom:14px;width:auto;flex-direction:row;overflow-x:auto}.toolbar button{min-width:68px}.inspector{top:auto;bottom:104px;right:14px;max-height:42vh}.board-library{left:14px;right:14px;width:auto}.share-list{display:none}}