:root{--bg: #fafbfc;--bg-elevated: rgba(255, 255, 255, .82);--bg-subtle: rgba(248, 250, 252, .9);--bg-inset: #f1f3f5;--text: #111827;--text-secondary: #4b5563;--text-tertiary: #9ca3af;--border: rgba(0, 0, 0, .08);--border-strong: rgba(0, 0, 0, .14);--accent: #6366f1;--accent-hover: #4f46e5;--accent-subtle: rgba(99, 102, 241, .08);--accent-glow: rgba(99, 102, 241, .18);--ok: #059669;--ok-bg: rgba(5, 150, 105, .08);--warn: #d97706;--warn-bg: rgba(217, 119, 6, .07);--err: #dc2626;--err-bg: rgba(220, 38, 38, .06);--info: #2563eb;--info-bg: rgba(37, 99, 235, .06);--shadow-xs: 0 1px 2px rgba(0, 0, 0, .04);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .06), 0 1px 2px rgba(0, 0, 0, .04);--shadow: 0 4px 6px -1px rgba(0, 0, 0, .05), 0 2px 4px -2px rgba(0, 0, 0, .03);--shadow-md: 0 8px 16px -4px rgba(0, 0, 0, .06), 0 4px 6px -2px rgba(0, 0, 0, .03);--shadow-lg: 0 20px 40px -8px rgba(0, 0, 0, .08);--radius: 12px;--radius-sm: 8px;--radius-xs: 6px;--radius-full: 9999px;--ease: cubic-bezier(.16, 1, .3, 1);--duration: .18s;--duration-slow: .28s}[data-theme=dark]{--bg: #09090b;--bg-elevated: rgba(24, 24, 27, .85);--bg-subtle: rgba(24, 24, 27, .65);--bg-inset: #131316;--text: #fafafa;--text-secondary: #a1a1aa;--text-tertiary: #52525b;--border: rgba(255, 255, 255, .07);--border-strong: rgba(255, 255, 255, .12);--accent: #818cf8;--accent-hover: #a5b4fc;--accent-subtle: rgba(129, 140, 248, .1);--accent-glow: rgba(129, 140, 248, .15);--ok: #34d399;--ok-bg: rgba(52, 211, 153, .1);--warn: #fbbf24;--warn-bg: rgba(251, 191, 36, .08);--err: #f87171;--err-bg: rgba(248, 113, 113, .08);--info: #60a5fa;--info-bg: rgba(96, 165, 250, .08);--shadow-xs: 0 1px 2px rgba(0, 0, 0, .3);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .4), 0 1px 2px rgba(0, 0, 0, .3);--shadow: 0 4px 6px -1px rgba(0, 0, 0, .4), 0 2px 4px -2px rgba(0, 0, 0, .25);--shadow-md: 0 8px 16px -4px rgba(0, 0, 0, .5), 0 4px 6px -2px rgba(0, 0, 0, .3);--shadow-lg: 0 20px 40px -8px rgba(0, 0, 0, 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auto}.section-subtitle,.hero-subtitle{margin-top:4px;margin-bottom:14px;color:var(--text-secondary);font-size:13px;line-height:1.5}.actions{display:flex;gap:8px;flex-wrap:wrap}.btn{border:none;border-radius:var(--radius-sm);min-height:36px;padding:0 14px;font-family:inherit;font-size:13px;font-weight:500;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:6px;transition:all var(--duration) var(--ease);position:relative}.btn:hover:not(:disabled){transform:translateY(-.5px)}.btn:active:not(:disabled){transform:translateY(0) scale(.98)}.btn:disabled{opacity:.4;cursor:not-allowed}.btn.primary{color:#fff;background:var(--accent);box-shadow:var(--shadow-xs)}.btn.primary:hover:not(:disabled){background:var(--accent-hover);box-shadow:0 2px 12px var(--accent-glow)}.btn.secondary{color:var(--text);border:1px solid var(--border-strong);background:var(--bg-elevated)}.btn.secondary:hover:not(:disabled){background:var(--bg-inset);border-color:var(--border-strong)}[data-theme=dark] .btn.secondary{background:#ffffff0d}[data-theme=dark] .btn.secondary:hover:not(:disabled){background:#ffffff14}.btn.danger{color:var(--err);border:1px solid var(--border);background:var(--err-bg)}.btn.danger:hover:not(:disabled){background:#dc26261f}.btn-theme{min-height:32px;font-size:12px;padding:0 10px;border-radius:var(--radius-xs)}input,textarea,select{width:100%;border:1px solid var(--border-strong);border-radius:var(--radius-sm);background:var(--bg);color:var(--text);padding:10px 12px;font:inherit;font-size:13px;transition:border-color var(--duration) var(--ease),box-shadow var(--duration) var(--ease)}[data-theme=dark] input,[data-theme=dark] textarea,[data-theme=dark] select{background:var(--bg-inset)}input:focus,textarea:focus,select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-subtle)}label{display:block;margin-bottom:6px;font-size:13px;font-weight:500;color:var(--text-secondary)}.form-row{margin-bottom:16px}.auth-switch{margin-top:16px;font-size:13px;color:var(--text-tertiary);text-align:center}.auth-switch a{color:var(--accent);font-weight:500}.auth-switch a:hover{text-decoration:underline}.app-shell{min-height:100vh;width:min(1280px,96vw);margin:0 auto;padding:12px;display:grid;grid-template-columns:240px minmax(0,1fr);gap:12px}.side-rail{border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-elevated);backdrop-filter:blur(20px) saturate(1.4);-webkit-backdrop-filter:blur(20px) saturate(1.4);padding:16px 12px;display:grid;align-content:start;gap:8px;position:sticky;top:12px;height:calc(100vh - 24px)}.brand{font-size:14px;font-weight:700;letter-spacing:-.01em;color:var(--text);padding:4px 0;display:flex;align-items:center;gap:8px}.brand-icon{color:var(--accent);flex-shrink:0}.side-nav{display:grid;gap:2px;margin-top:8px}.side-nav a{min-height:36px;border-radius:var(--radius-sm);color:var(--text-secondary);display:inline-flex;align-items:center;gap:10px;padding:0 10px;font-weight:500;font-size:13px;transition:background var(--duration) var(--ease),color var(--duration) var(--ease)}.side-nav a svg{flex-shrink:0;opacity:.65}.side-nav a:hover{background:var(--bg-inset);color:var(--text)}[data-theme=dark] .side-nav a:hover{background:#ffffff0d}.side-nav a.active{background:var(--accent-subtle);color:var(--accent);font-weight:600}.side-nav a.active svg{opacity:1}.side-shortcuts{margin-top:12px;padding-top:12px;border-top:1px solid var(--border)}.side-shortcuts-label{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--text-tertiary);margin:0 0 8px}.shortcut-row{display:flex;align-items:center;gap:4px;font-size:12px;color:var(--text-tertiary);margin-bottom:4px}.shortcut-row span{margin-left:auto;font-size:11px}kbd{display:inline-flex;align-items:center;justify-content:center;min-width:20px;height:20px;padding:0 5px;border-radius:4px;border:1px solid var(--border-strong);background:var(--bg);font-family:SF Mono,Fira Code,Consolas,monospace;font-size:10px;font-weight:600;color:var(--text-secondary)}[data-theme=dark] kbd{background:var(--bg-inset)}.side-status{margin-top:auto;padding-top:10px;border-top:1px solid var(--border)}.status-indicator{display:flex;align-items:center;gap:8px;font-size:12px;font-weight:500;padding:8px 10px;border-radius:var(--radius-sm)}.status-indicator.connected{color:var(--ok);background:var(--ok-bg)}.status-indicator.disconnected{color:var(--err);background:var(--err-bg)}.status-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}.status-indicator.connected 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var(--ease),box-shadow var(--duration-slow) var(--ease)}.landing-panel:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.landing-panel p{color:var(--text-secondary);font-size:13px;line-height:1.6}.landing-panel-kicker{text-transform:uppercase;letter-spacing:.08em;font-size:11px;color:var(--accent);font-weight:600;margin-bottom:6px}.landing-bottom{display:flex;justify-content:space-between;align-items:center;gap:16px}.landing-bottom p{color:var(--text-secondary);font-size:13px}.meta-row{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:6px}.meta-chip{font-size:11px;font-weight:500;border-radius:var(--radius-full);border:1px solid var(--border);padding:4px 10px;color:var(--text-tertiary)}.layout-grid{display:grid;grid-template-columns:1.3fr .85fr;gap:12px}.composer-shell{display:grid;gap:12px}.composer-hero{display:flex;justify-content:space-between;align-items:flex-start;gap:14px}.composer-main{display:grid;gap:12px}.composer-side{align-self:start;position:sticky;top:80px}.composer-section{border:1px solid var(--border);border-radius:var(--radius-sm);padding:14px;background:var(--bg)}[data-theme=dark] .composer-section{background:var(--bg-inset)}.composer-cta{justify-self:start;min-width:160px;min-height:40px;font-size:14px;font-weight:600}.upload-zone{border:1.5px dashed var(--border-strong);border-radius:var(--radius-sm);padding:28px 18px;text-align:center;background:var(--bg);transition:border-color var(--duration) var(--ease),background var(--duration) var(--ease);position:relative;cursor:pointer}[data-theme=dark] 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0}}#toast-root{position:fixed;right:14px;top:14px;display:grid;gap:8px;z-index:30}.toast{min-width:220px;max-width:340px;border-radius:var(--radius-sm);color:#fff;padding:10px 14px;font-size:13px;font-weight:500;box-shadow:var(--shadow-md);animation:toastIn .25s var(--ease)}.toast.success{background:var(--ok)}.toast.warning{background:var(--warn)}.toast.error{background:var(--err)}.toast.info{background:var(--info)}@keyframes toastIn{0%{opacity:0;transform:translateY(8px) scale(.96)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes fadeIn{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 980px){.app-shell{grid-template-columns:1fr;width:min(1080px,95vw)}.side-rail{position:static;height:auto}.workspace-topbar{flex-direction:column;align-items:flex-start}.workspace-toolbar{width:100%;justify-content:space-between}.landing-hero-grid,.landing-grid,.layout-grid{grid-template-columns:1fr}.composer-hero,.landing-bottom{flex-direction:column;align-items:flex-start}.composer-side{position:static}}@media (max-width: 640px){.card{padding:14px;border-radius:var(--radius-sm)}}.trusted-marquee-shell{overflow:hidden}.trusted-marquee-track{display:flex;width:max-content;gap:32px;align-items:center;animation:trustedMarqueeLTR 22s linear infinite}.trusted-marquee-item{display:inline-flex;align-items:center;gap:8px;color:#1e293b;opacity:.62;font-size:1.25rem;font-weight:700;white-space:nowrap;transition:opacity var(--duration) var(--ease),filter var(--duration) var(--ease);filter:grayscale(1)}.trusted-marquee-shell:hover .trusted-marquee-item{opacity:1;filter:grayscale(0)}@keyframes 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