:root{--bg:#121212;--sidebar-bg:#232329;--panel-bg:#232329;--panel-border:hsla(0,0%,100%,.1);--text:#ececf1;--muted:#9ba1b0;--accent:#6965db;--accent-soft:rgba(105,101,219,.2);--shadow:0 4px 12px rgba(0,0,0,.5)}[data-theme=light]{--bg:#fff;--sidebar-bg:#f3f4f6;--panel-bg:#f3f4f6;--panel-border:rgba(0,0,0,.1);--text:#1f2937;--muted:#6b7280;--accent:#6965db;--accent-soft:rgba(105,101,219,.15);--shadow:0 4px 12px rgba(0,0,0,.1)}*{box-sizing:border-box}body,html{margin:0;height:100%;font-family:Inter,Avenir Next,Segoe UI,sans-serif;background:var(--bg);color:var(--text);overflow:hidden;transition:background-color .3s ease,color .3s ease}button{font:inherit;cursor:pointer;border:none;background:none;color:inherit;display:flex;align-items:center;justify-content:center;transition:all .15s ease}.board-shell{width:100vw;height:100vh;display:flex}.board-shell,.workspace-shell{position:relative;overflow:hidden}.workspace-shell{flex:1 1;height:100%}.top-toolbar{position:absolute;top:12px;left:50%;transform:translateX(-50%);z-index:100;background:var(--panel-bg);border:1px solid var(--panel-border);border-radius:8px;padding:4px;display:flex;gap:4px;box-shadow:var(--shadow)}.tool-button{width:36px;height:36px;border-radius:6px;position:relative}.tool-button:hover{background:hsla(0,0%,100%,.05)}.tool-button.active{background:var(--accent-soft);color:var(--accent)}.tool-shortcut{position:absolute;bottom:2px;right:2px;font-size:8px;opacity:.5}.color-picker-container{display:flex;align-items:center;gap:4px;padding:0 4px}.color-swatch{width:20px;height:20px;border-radius:50%;border:2px solid transparent;transition:all .2s cubic-bezier(.4,0,.2,1);padding:0;box-shadow:0 2px 4px rgba(0,0,0,.2)}.color-swatch:hover{transform:scale(1.2);z-index:10}.color-swatch.active{border-color:#fff;transform:scale(1.1);box-shadow:0 0 8px hsla(0,0%,100%,.4)}.color-divider{width:1px;height:16px;background:var(--panel-border);margin:0 4px}.custom-color-input{width:20px;height:20px;padding:0;border:none;border-radius:50%;background:none;cursor:pointer;overflow:hidden;transition:transform .2s ease}.custom-color-input::-webkit-color-swatch-wrapper{padding:0}.custom-color-input::-webkit-color-swatch{border:2px solid transparent;border-radius:50%}.custom-color-input:hover{transform:scale(1.2)}.sidebar-trigger{top:12px;width:40px;height:40px;background:var(--panel-bg);border:1px solid var(--panel-border);border-radius:8px;box-shadow:var(--shadow)}.sidebar-panel,.sidebar-trigger{position:absolute;left:12px;z-index:110}.sidebar-panel{top:60px;width:240px;background:var(--sidebar-bg);border:1px solid var(--panel-border);border-radius:12px;box-shadow:0 12px 36px rgba(0,0,0,.6);padding:8px;display:flex;flex-direction:column;gap:4px;transform:translateX(-260px);transition:transform .2s cubic-bezier(.2,0,0,1)}.sidebar-panel.open{transform:translateX(0)}.menu-item{width:100%;justify-content:space-between;padding:8px 12px;border-radius:6px;font-size:13px}.menu-item:hover{background:hsla(0,0%,100%,.05)}.menu-divider{height:1px;background:var(--panel-border);margin:4px 0}.sidebar-section{padding:8px 12px}.sidebar-section h4{margin:0 0 8px;font-size:11px;text-transform:uppercase;color:var(--muted);letter-spacing:.05em}.bottom-left-controls{position:absolute;bottom:12px;left:12px;z-index:100;display:flex;flex-direction:column;gap:8px}.control-group{background:var(--panel-bg);border:1px solid var(--panel-border);border-radius:8px;padding:4px;display:flex;gap:4px;box-shadow:var(--shadow)}.control-button{width:32px;height:32px;border-radius:4px}.control-button:hover{background:hsla(0,0%,100%,.05)}.zoom-display{display:flex;align-items:center;padding:0 8px;font-size:12px;font-weight:500;color:var(--muted)}.canvas-shell{width:100%;height:100%;background:var(--bg)}.board-canvas{width:100%;height:100%;touch-action:none}.ai-button{background:linear-gradient(135deg,#7c3aed,#db2777);color:#fff!important;box-shadow:0 0 10px rgba(124,58,237,.4)}.ai-button.enhancing{animation:pulse 1.5s infinite}@keyframes pulse{0%{opacity:1}50%{opacity:.6}to{opacity:1}}.status-banner{position:absolute;bottom:20px;left:50%;transform:translateX(-50%);z-index:200;background:#2d1a1a;border:1px solid #f44;color:#f44;padding:8px 16px;border-radius:8px;font-size:13px}.home-shell{height:100vh;display:flex;align-items:center;justify-content:center;background:radial-gradient(circle at 10% 20%,var(--accent-soft),transparent 40%),radial-gradient(circle at 90% 80%,rgba(219,39,119,.1),transparent 40%),var(--bg)}.hero-card{text-align:center;max-width:600px;padding:48px;background:var(--panel-bg);border:1px solid var(--panel-border);border-radius:24px;box-shadow:var(--shadow);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.eyebrow{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.2em;color:var(--accent);margin-bottom:16px}.hero-card h1{font-size:48px;font-weight:800;margin:0 0 16px;letter-spacing:-.02em}.hero-copy{font-size:18px;line-height:1.6;color:var(--muted);margin-bottom:32px}.primary-button{background:var(--accent);color:#fff;padding:16px 32px;border-radius:12px;font-weight:600;font-size:16px;box-shadow:0 4px 20px var(--accent-soft);transition:transform .2s ease;display:inline-flex;margin:0 auto}.primary-button:hover{transform:translateY(-2px);box-shadow:0 8px 30px var(--accent-soft)}.primary-button:disabled{opacity:.5;cursor:not-allowed}.features-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:16px;gap:16px;margin-top:48px}.feature-item{padding:16px;background:hsla(0,0%,100%,.03);border-radius:12px;border:1px solid var(--panel-border);text-align:left}.feature-item h3{font-size:14px;font-weight:600;margin:0 0 4px}.feature-item p{font-size:12px;color:var(--muted);margin:0}.style-dropdown-menu{position:absolute;top:44px;left:50%;transform:translateX(-50%);z-index:1000;width:180px;background:hsla(0,0%,9%,.95);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid rgba(105,101,219,.4);border-radius:12px;box-shadow:0 10px 30px rgba(0,0,0,.5);padding:6px;display:flex;flex-direction:column;gap:2px;animation:slideDownMenu .15s ease-out}@keyframes slideDownMenu{0%{opacity:0;transform:translate(-50%,-10px)}to{opacity:1;transform:translate(-50%)}}.style-dropdown-item{width:100%;justify-content:flex-start;gap:10px;padding:8px 10px;border-radius:6px;font-size:12px;font-weight:500;color:#fff;transition:all .15s ease}.style-dropdown-item:hover{background:rgba(105,101,219,.2);color:#a5a6f6}.style-dropdown-item.active{background:var(--accent);color:#fff}.style-icon{display:flex;align-items:center;justify-content:center;opacity:.8}.style-dropdown-item.active .style-icon{opacity:1}.home-shell-custom{background:radial-gradient(circle at top,#1a1525 0,#010409 100%);min-height:100vh;height:100vh;width:100vw;overflow-y:auto;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;padding:4rem 2rem;font-family:Inter,system-ui,sans-serif}.home-container{max-width:1200px;width:100%}.home-header{justify-content:space-between;margin-bottom:4rem}.home-header,.home-logo{display:flex;align-items:center}.home-logo{gap:.75rem;font-weight:700;font-size:1.5rem;color:#fff}.home-logo-icon{width:32px;height:32px;background:linear-gradient(135deg,#6965db,#ff6b6b);border-radius:8px}.hero-section{display:flex;flex-direction:row;gap:4rem;align-items:center;margin:2rem 0 6rem;width:100%}.hero-video-container{flex:1.5 1;border-radius:32px;overflow:hidden;box-shadow:0 30px 60px rgba(0,0,0,.5),0 0 40px rgba(105,101,219,.2);border:1px solid hsla(0,0%,100%,.1);position:relative;aspect-ratio:16/9}.hero-video{width:100%;height:100%;display:block;object-fit:cover}.hero-video-overlay{position:absolute;inset:0;box-shadow:inset 0 0 0 1px hsla(0,0%,100%,.1);border-radius:32px;pointer-events:none}.hero-text-container{flex:1 1;text-align:center}.hero-title{font-size:clamp(2.5rem,5vw,4rem);font-weight:800;letter-spacing:-.03em;line-height:1.1;margin-bottom:1.5rem;color:#fff}.hero-title-gradient{background:linear-gradient(90deg,#a5a6f6,#ff8a8a);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.hero-description{font-size:1.25rem;color:#a0aec0;margin-bottom:2.5rem;line-height:1.6}.hero-button-wrapper{display:flex;justify-content:center}.hero-button{background:linear-gradient(135deg,#6965db,#5551c4);color:#fff;border:none;padding:1.25rem 2.5rem;font-size:1.125rem;font-weight:600;border-radius:12px;cursor:pointer;box-shadow:0 10px 25px rgba(105,101,219,.3);transition:transform .2s,box-shadow .2s}.hero-button:hover{transform:translateY(-2px)}.hero-button:disabled{opacity:.7;cursor:wait}.hero-error{color:#ff6b6b;margin-top:1rem}.features-grid-custom{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));grid-gap:2rem;gap:2rem;margin-top:4rem}.feature-item-custom{background:hsla(0,0%,100%,.03);border:1px solid hsla(0,0%,100%,.05);padding:2.5rem 2rem;border-radius:24px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);transition:transform .3s,background .3s}.feature-item-custom:hover{transform:translateY(-5px);background:hsla(0,0%,100%,.05)}.feature-icon-wrapper{background:rgba(105,101,219,.1);width:56px;height:56px;border-radius:16px;display:flex;align-items:center;justify-content:center;margin-bottom:1.5rem;border:1px solid rgba(105,101,219,.2)}.feature-title{font-size:1.25rem;font-weight:600;color:#fff;margin-bottom:.75rem}.feature-desc{color:#a0aec0;line-height:1.6}.home-footer{margin-top:8rem;border-top:1px solid hsla(0,0%,100%,.05);padding:3rem 0;text-align:center;color:#718096;font-size:.875rem}@media (max-width:768px){.home-shell-custom{padding:2rem 1rem}.home-header{margin-bottom:2rem}.hero-section{flex-direction:column;gap:2rem;margin:1rem 0 4rem}.hero-video-container{width:100%}.hero-title{font-size:2.5rem}.hero-description{font-size:1rem;margin-bottom:2rem}.features-grid-custom{grid-template-columns:1fr;gap:1.5rem;margin-top:2rem}.feature-item-custom{padding:1.5rem}.home-footer{margin-top:4rem;padding:2rem 0}}