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var(--warn-border);color:#92400e;border-radius:var(--radius-lg);padding:12px 16px;font-size:13px;font-weight:500}.status{margin:10px 0;padding:10px 16px;border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--bg-1);color:var(--ink-1);font-size:13px}.toast-container{position:fixed;bottom:20px;right:20px;z-index:500;display:flex;flex-direction:column-reverse;gap:8px;pointer-events:none}.toast{pointer-events:auto;display:flex;align-items:center;gap:10px;padding:12px 16px;border-radius:var(--radius-lg);background:var(--bg-1);border:1px solid var(--line);box-shadow:var(--shadow-xl);font-size:13px;font-weight:500;color:var(--ink-0);animation:toast-in .3s var(--ease-out);max-width:380px}.toast-success{border-left:3px solid var(--ok)}.toast-error{border-left:3px solid var(--err)}.toast-warning{border-left:3px solid var(--warn)}.toast-info{border-left:3px solid var(--brand)}.toast-close{margin-left:auto;background:none;border:none;color:var(--ink-3);cursor:pointer;padding:2px;font-size:16px;line-height:1}.toast-close:hover{color:var(--ink-0);transform:none;box-shadow:none}.skeleton{background:linear-gradient(90deg,var(--bg-2) 25%,var(--bg-3) 50%,var(--bg-2) 75%);background-size:200% 100%;animation:skeleton-shimmer 1.5s ease infinite;border-radius:var(--radius-md)}.skeleton-text{height:14px;margin-bottom:8px}.skeleton-text:last-child{width:60%}.skeleton-card{height:120px;border-radius:var(--radius-xl)}.skeleton-line{height:10px;margin-bottom:6px;border-radius:var(--radius-sm)}.landing{overflow-x:hidden}.hero{position:relative;padding:100px 24px 80px;text-align:center;overflow:hidden}.hero-bg{position:absolute;inset:0;background:radial-gradient(ellipse 80% 50% at 50% -20%,rgba(37,99,235,.15),transparent),radial-gradient(ellipse 60% 40% at 80% 0%,rgba(124,58,237,.1),transparent),radial-gradient(ellipse 50% 30% at 20% 10%,rgba(37,99,235,.08),transparent);animation:hero-glow 12s ease-in-out infinite alternate}.hero-content{position:relative;max-width:720px;margin:0 auto}.hero-badge{display:inline-flex;align-items:center;gap:6px;padding:6px 16px;border-radius:var(--radius-full);background:var(--brand-bg);border:1px solid var(--brand-subtle);color:var(--brand);font-size:13px;font-weight:600;margin-bottom:24px;animation:fade-in-up .6s var(--ease-out)}.hero h1{font-size:clamp(36px,5.5vw,56px);font-weight:800;line-height:1.1;letter-spacing:-.03em;color:var(--ink-0);margin:0 0 16px;animation:fade-in-up .6s var(--ease-out) .1s both}.hero h1 .gradient-text{background:linear-gradient(135deg,var(--brand),#7c3aed);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero-subtitle{font-size:clamp(16px,2vw,19px);line-height:1.6;color:var(--ink-2);max-width:560px;margin:0 auto 32px;animation:fade-in-up .6s var(--ease-out) .2s both}.hero-cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;animation:fade-in-up .6s var(--ease-out) .3s both}.features{max-width:1080px;margin:0 auto;padding:60px 24px}.features h2{text-align:center;font-size:28px;font-weight:800;letter-spacing:-.02em;margin-bottom:40px}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}.feature-card{padding:28px;border-radius:var(--radius-xl);background:var(--bg-1);border:1px solid var(--line);transition:all var(--transition-base);box-shadow:var(--shadow-xs)}.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--brand-subtle)}.feature-icon{width:44px;height:44px;border-radius:var(--radius-lg);background:var(--brand-bg);display:flex;align-items:center;justify-content:center;margin-bottom:16px}.feature-icon svg{width:22px;height:22px;color:var(--brand)}.feature-card h3{font-size:16px;font-weight:700;margin:0 0 8px;color:var(--ink-0)}.feature-card p{font-size:14px;line-height:1.6;color:var(--ink-2);margin:0}.how-it-works{max-width:900px;margin:0 auto;padding:60px 24px}.how-it-works h2{text-align:center;font-size:28px;font-weight:800;letter-spacing:-.02em;margin-bottom:48px}.steps-row{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;align-items:center;gap:0}.step{text-align:center;padding:0 16px}.step-number{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-light));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:18px;margin:0 auto 14px;box-shadow:var(--shadow-brand)}.step h3{font-size:15px;font-weight:700;margin:0 0 6px}.step p{font-size:13px;color:var(--ink-2);margin:0;line-height:1.5}.step-connector{width:40px;height:2px;background:var(--line-strong);flex-shrink:0}.stats-section{padding:48px 24px;background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:24px;max-width:800px;margin:0 auto;text-align:center}.stat-item h3{font-size:32px;font-weight:800;letter-spacing:-.03em;color:var(--brand);margin:0 0 4px}.stat-item p{font-size:13px;color:var(--ink-2);margin:0;font-weight:500}.cta-section{max-width:560px;margin:0 auto;padding:60px 24px;text-align:center}.cta-section h2{font-size:24px;font-weight:800;letter-spacing:-.02em;margin-bottom:8px}.cta-section p{color:var(--ink-2);margin-bottom:24px}.cta-form{display:flex;gap:10px;max-width:420px;margin:0 auto}.cta-form input{flex:1;padding:12px 16px;border-radius:var(--radius-lg)}.footer{padding:32px 24px;border-top:1px solid var(--line);text-align:center;color:var(--ink-3);font-size:13px}.footer a{color:var(--ink-2);margin:0 12px}.footer a:hover{color:var(--brand)}.auth-page{min-height:calc(100vh - var(--header-height));display:flex;align-items:center;justify-content:center;padding:40px 20px;background:radial-gradient(ellipse 60% 50% at 50% 0%,rgba(37,99,235,.08),transparent)}.auth-card{width:100%;max-width:420px;padding:40px 36px;border-radius:var(--radius-2xl);background:var(--bg-1);border:1px solid var(--line);box-shadow:var(--shadow-xl);animation:fade-in-up .4s var(--ease-out)}.auth-card .auth-logo{width:48px;height:48px;margin:0 auto 20px;background:linear-gradient(135deg,var(--brand),#7c3aed);border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center}.auth-card .auth-logo svg{width:24px;height:24px;color:#fff}.auth-card h2{text-align:center;font-size:22px;font-weight:800;letter-spacing:-.02em;margin:0 0 6px}.auth-card .auth-subtitle{text-align:center;color:var(--ink-2);font-size:14px;margin:0 0 28px}.auth-card .stack{gap:14px}.auth-card input{padding:13px 16px;font-size:15px;border-radius:var(--radius-lg)}.auth-card .btn-primary{width:100%;padding:13px;font-size:15px;border-radius:var(--radius-lg);margin-top:4px}.auth-card .auth-switch{text-align:center;margin-top:20px;font-size:14px;color:var(--ink-2)}.auth-card .auth-switch a{font-weight:600;cursor:pointer}.auth-error{background:var(--err-bg);border:1px solid var(--err-border);color:var(--err);padding:10px 14px;border-radius:var(--radius-md);font-size:13px;font-weight:500;text-align:center;animation:shake .3s ease}@keyframes fade-in{0%{opacity:0}to{opacity:1}}@keyframes fade-in-up{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}@keyframes message-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes page-enter{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@keyframes hero-glow{0%{opacity:.8;transform:scale(1)}to{opacity:1;transform:scale(1.05)}}@keyframes typing-pulse{0%,80%,to{transform:scale(.6);opacity:.35}40%{transform:scale(1);opacity:1}}@keyframes vc-bounce{0%,80%,to{transform:translateY(0);opacity:.4}40%{transform:translateY(-3px);opacity:1}}@keyframes pulse-dot{0%,to{box-shadow:0 0 #2563eb4d}50%{box-shadow:0 0 0 6px #2563eb00}}@keyframes skeleton-shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}@keyframes toast-in{0%{opacity:0;transform:translate(40px)}to{opacity:1;transform:translate(0)}}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-6px)}75%{transform:translate(6px)}}@keyframes spin{to{transform:rotate(360deg)}}.animate-page-enter{animation:page-enter .25s var(--ease-out)}.animate-fade-in{animation:fade-in .3s var(--ease-out)}@media(max-width:1280px){.toolsGrid,.chainGrid{grid-template-columns:1fr 1fr}}@media(max-width:1024px){.sandboxLayout,.toolsGrid,.chainGrid{grid-template-columns:1fr}.toolPanel,.chainPanel{min-height:auto}.grid3,.grid4{grid-template-columns:1fr 1fr}}@media(max-width:768px){.hamburger{display:flex}.topbar{padding:0 16px}.topbar nav .desktop-only{display:none}.dash{grid-template-columns:1fr}.dash>aside{display:none}.dash>section{padding:16px}.grid2,.grid3,.grid4{grid-template-columns:1fr}.statusBar{flex-wrap:nowrap;overflow-x:auto;padding:12px 16px!important}.statusBar>div{flex-shrink:0}.bubble{max-width:90%}.chatComposer{padding:12px}.hero{padding:60px 20px 50px}.hero h1{font-size:32px}.steps-row{grid-template-columns:1fr;gap:24px}.step-connector{width:2px;height:24px;margin:0 auto}.features-grid{grid-template-columns:1fr;gap:14px}.cta-form{flex-direction:column}.auth-card{padding:32px 24px}}@media(max-width:480px){body{font-size:13.5px}.topbar{height:52px}.brand{font-size:15px}.hero{padding:48px 16px 40px}.hero h1{font-size:28px}.hero-subtitle{font-size:15px}.card{padding:16px;border-radius:var(--radius-lg)}.chatCard{min-height:400px}.auth-card{padding:28px 20px;border-radius:var(--radius-xl)}}