:root{color-scheme:dark;--font: "DM Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-mono: ui-monospace, "SF Mono", Menlo, monospace;--text-2xs: .6875rem;--text-xs: .75rem;--text-sm: .8125rem;--text-base: .9375rem;--text-md: 1rem;--text-lg: 1.125rem;--text-xl: 1.375rem;--text-2xl: 1.75rem;--leading-tight: 1.25;--leading-normal: 1.5;--leading-relaxed: 1.625;--tracking-tight: -.025em;--tracking-normal: 0;--tracking-wide: .025em;--tracking-wider: .06em;--tracking-caps: .08em;--bg: #070b14;--bg-soft: #0d1424;--surface: #131c2e;--surface-hover: #1a2740;--text: #eef2ff;--text-muted: #94a3b8;--text-faint: #64748b;--border: rgba(148, 163, 184, .12);--border-strong: rgba(148, 163, 184, .22);--accent: #38bdf8;--accent-strong: #0ea5e9;--accent-text: #041018;--accent-soft: rgba(56, 189, 248, .14);--danger: #f87171;--danger-soft: rgba(248, 113, 113, .12);--warning: #fbbf24;--warning-soft: rgba(251, 191, 36, .12);--success: #4ade80;--success-soft: rgba(74, 222, 128, 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.08)}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:var(--font)}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;-webkit-text-size-adjust:100%;font-size:var(--text-md);line-height:var(--leading-normal);letter-spacing:var(--tracking-normal);touch-action:manipulation;background:radial-gradient(circle at top right,rgba(56,189,248,.08),transparent 32%),radial-gradient(circle at bottom left,rgba(139,92,246,.06),transparent 28%),var(--bg)}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}button,input,textarea,select{font:inherit}.app-shell{max-width:var(--app-max);margin:0 auto;min-height:100dvh;padding:12px 16px calc(24px + env(safe-area-inset-bottom))}.app-shell--wide{max-width:var(--app-max-wide)}.app-header{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;padding:8px 0 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0;color:var(--text-muted);font-size:var(--text-sm);line-height:var(--leading-normal)}.app-header__back{display:inline-flex;align-items:center;gap:4px;color:var(--text-muted);font-size:var(--text-sm);font-weight:500;margin-bottom:6px}.app-header__actions{display:flex;gap:8px;align-items:center;flex-shrink:0}.app-main{display:grid;gap:14px}.app-footer{position:sticky;bottom:0;padding-top:12px;background:linear-gradient(to top,var(--bg),transparent)}.icon-btn{width:42px;height:42px;border-radius:12px;border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;font-size:1rem}.icon-btn:active{transform:scale(.98)}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}.card__header{margin-bottom:14px}.card__title{margin:0;font-size:var(--text-lg);font-weight:700;letter-spacing:var(--tracking-tight);line-height:var(--leading-tight)}.card__desc{margin:6px 0 0;color:var(--text-muted);font-size:var(--text-sm);line-height:var(--leading-relaxed)}.stack{display:grid;gap:12px}.stack--sm{gap:8px}.btn{min-height:var(--touch);border-radius:14px;border:1px solid var(--border);background:var(--surface-hover);color:var(--text);padding:0 18px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:var(--text-base);font-weight:600;letter-spacing:var(--tracking-wide);line-height:1.2;transition:transform .15s ease,background .15s ease,border-color .15s ease}.btn:active:not(:disabled){transform:scale(.98)}.btn:disabled{opacity:.55;cursor:not-allowed}.btn--full{width:100%}.btn--primary,.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-strong));color:var(--accent-text);border-color:transparent}.btn--accent{background:var(--accent-soft);color:var(--accent);border-color:color-mix(in srgb,var(--accent) 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ease,background .15s ease}.profile-btn:hover{border-color:var(--accent);text-decoration:none}.profile-btn--compact{padding:2px}.profile-btn__avatar{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;font-size:var(--text-sm);font-weight:800;background:linear-gradient(135deg,var(--accent-soft),var(--surface-hover));color:var(--accent);border:1px solid color-mix(in srgb,var(--accent) 30%,transparent)}.profile-btn__avatar--premium{background:linear-gradient(135deg,var(--premium-soft),var(--surface-hover));color:var(--premium);border-color:color-mix(in srgb,var(--premium-strong) 35%,transparent)}.profile-btn__label{padding-right:10px;font-size:var(--text-sm);font-weight:600;color:var(--text-muted)}.plan-banner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;padding:20px 22px;border-radius:var(--radius-lg);border:1px solid var(--border);margin-bottom:16px}.plan-banner--free{background:linear-gradient(135deg,var(--surface),var(--bg-soft));border-color:var(--border-strong)}.plan-banner--premium{background:linear-gradient(135deg,var(--premium-soft),var(--surface));border-color:color-mix(in srgb,var(--premium-strong) 35%,transparent)}.plan-banner__title{margin:10px 0 6px;font-size:var(--text-lg)}.plan-banner__desc{margin:0;font-size:var(--text-sm);color:var(--text-muted);line-height:var(--leading-relaxed);max-width:520px}.plan-banner__meta{margin:0;font-size:var(--text-sm);color:var(--text-muted)}.plan-features{margin:0 0 16px;padding-left:18px;line-height:var(--leading-relaxed);color:var(--text-muted)}.profile-grid,.projects-grid{display:grid;gap:14px}.main-menu__plan{margin-top:10px}.parts-search-trigger{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-width:42px;height:42px;padding:0 10px;border-radius:12px;border:1px solid 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var(--info)}@media(min-width:900px){.parts-search-backdrop{align-items:center;padding:24px}.parts-search-sheet{max-height:min(85vh,780px);border-radius:var(--radius-lg)}}.tabs{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;padding:6px;border-radius:18px;background:var(--bg-soft);border:1px solid var(--border);overflow-x:auto}.tabs__item{min-height:44px;border:none;border-radius:12px;background:transparent;color:var(--text-muted);font-size:.78rem;font-weight:700;cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;padding:6px 4px}.tabs__item--active{background:var(--surface);color:var(--text);box-shadow:var(--shadow)}.project-card{display:block;text-decoration:none;color:inherit;transition:transform .15s ease,border-color .15s ease}.project-card:hover{text-decoration:none;transform:translateY(-1px);border-color:var(--border-strong)}.project-card__top{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}.project-card__title{margin:0;font-size:var(--text-md);font-weight:700;letter-spacing:var(--tracking-tight);line-height:var(--leading-tight)}.project-card__meta{margin-top:8px;display:flex;gap:8px;flex-wrap:wrap}.capture-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.capture-action{min-height:92px;border-radius:16px;border:1px solid var(--border);background:var(--bg-soft);color:var(--text);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;cursor:pointer;font-weight:700}.capture-action--primary{background:var(--accent-soft);border-color:color-mix(in srgb,var(--accent) 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35%,transparent);background:var(--surface);box-shadow:var(--shadow);font-size:var(--text-sm);animation:slide-up .2s ease-out}.toast__dismiss{border:none;background:transparent;color:var(--text-muted);cursor:pointer;padding:4px;font-size:var(--text-sm)}.busy-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000073;display:grid;place-items:center;z-index:100;padding:20px}.busy-overlay__card{min-width:220px;padding:20px 24px;border-radius:18px;background:var(--surface);border:1px solid var(--border);display:flex;align-items:center;gap:12px;box-shadow:var(--shadow)}.spinner{width:22px;height:22px;border-radius:50%;border:3px solid var(--border);border-top-color:var(--accent);animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.auth-page{min-height:100dvh;display:grid;align-content:center;gap:18px;max-width:440px;margin:0 auto;padding:24px 16px calc(24px + env(safe-area-inset-bottom))}.auth-hero{text-align:center;padding:12px 0 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h1{margin:0;font-size:var(--text-md);font-weight:700;letter-spacing:var(--tracking-tight);line-height:var(--leading-tight);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-header__subtitle{margin:2px 0 0;font-size:var(--text-xs);line-height:var(--leading-normal);color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-header__actions{display:flex;gap:6px;flex-shrink:0;align-items:center;flex-wrap:wrap;justify-content:flex-end}.chat-thread{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:10px;padding:14px 4px 12px;min-height:0}.chat-thread--empty{justify-content:center}.chat-welcome{text-align:center;padding:32px 16px;color:var(--text-muted)}.chat-welcome__icon{display:inline-grid;place-items:center;width:56px;height:56px;border-radius:18px;background:linear-gradient(135deg,var(--accent-soft),var(--surface));font-size:1.6rem;margin-bottom:12px}.chat-welcome__title{margin:0 0 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