@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap";:root{--bg-primary: #0f1117;--bg-secondary: #151821;--bg-card: #1a1d27;--bg-input: #252836;--bg-hover: #2a2d3a;--border: #2e3140;--border-focus: #6366f1;--text-primary: #e4e4e7;--text-secondary: #9ca3af;--text-muted: #6b7280;--accent: #6366f1;--accent-hover: #818cf8;--success: #4ade80;--success-dim: #166534;--danger: #f87171;--danger-dim: #991b1b;--warning: #fbbf24;--warning-dim: #92400e;--info: #60a5fa;--radius: 8px;--radius-lg: 12px;--radius-sm: 4px;--shadow: 0 1px 3px rgba(0, 0, 0, .3);--shadow-lg: 0 4px 12px rgba(0, 0, 0, .4);--font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;--mono: "JetBrains Mono", "Fira Code", monospace;--transition: .15s ease}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}body{font-family:var(--font);font-size:14px;line-height:1.5;color:var(--text-primary);background:var(--bg-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{min-height:100%;display:flex;flex-direction:column}a{color:var(--accent);text-decoration:none}a:hover{color:var(--accent-hover);text-decoration:underline}.layout{display:flex;flex-direction:column;min-height:100vh}.topbar{display:flex;align-items:center;justify-content:space-between;padding:0 24px;height:56px;background:var(--bg-secondary);border-bottom:1px solid var(--border);flex-shrink:0}.topbar-brand{display:flex;align-items:center;gap:8px;font-size:18px;font-weight:700;color:var(--text-primary);text-decoration:none}.topbar-brand:hover{color:var(--text-primary);text-decoration:none}.topbar-brand svg{width:24px;height:24px}.topbar-nav{display:flex;align-items:center;gap:16px}.topbar-user{color:var(--text-secondary);font-size:13px}.main-content{flex:1;padding:24px;max-width:1280px;width:100%;margin:0 auto}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px;transition:border-color var(--transition)}.card:hover{border-color:#3e4155}.card-clickable{cursor:pointer}.card-clickable:hover{border-color:var(--accent)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 16px;border:1px solid transparent;border-radius:var(--radius);font-family:var(--font);font-size:13px;font-weight:500;line-height:1;cursor:pointer;transition:all var(--transition);white-space:nowrap}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-hover)}.btn-danger{background:var(--danger-dim);color:var(--danger);border-color:var(--danger-dim)}.btn-danger:hover:not(:disabled){background:#7f1d1d}.btn-outline{background:transparent;color:var(--text-secondary);border-color:var(--border)}.btn-outline:hover:not(:disabled){background:var(--bg-hover);color:var(--text-primary);border-color:var(--text-muted)}.btn-ghost{background:transparent;color:var(--text-secondary);padding:6px 10px}.btn-ghost:hover:not(:disabled){background:var(--bg-hover);color:var(--text-primary)}.btn-sm{padding:5px 10px;font-size:12px}.form-group{display:flex;flex-direction:column;gap:6px}.form-label{font-size:13px;font-weight:500;color:var(--text-secondary)}.form-input,.form-select{padding:9px 12px;background:var(--bg-input);border:1px solid 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p{color:var(--text-secondary);font-size:14px}.auth-form{display:flex;flex-direction:column;gap:16px}.auth-footer{text-align:center;margin-top:20px;font-size:13px;color:var(--text-secondary)}.tier-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:4px}.tier-card{padding:16px;border:2px solid var(--border);border-radius:var(--radius);cursor:pointer;transition:all var(--transition);text-align:center}.tier-card:hover{border-color:var(--text-muted)}.tier-card.selected{border-color:var(--accent);background:#6366f114}.tier-name{font-weight:600;font-size:15px;margin-bottom:4px}.tier-price{font-size:20px;font-weight:700;color:var(--accent);margin-bottom:8px}.tier-price span{font-size:12px;font-weight:400;color:var(--text-muted)}.tier-features{font-size:12px;color:var(--text-secondary);line-height:1.6}.summary-bar{display:flex;gap:24px;padding:16px 20px;background:var(--bg-card);border:1px solid 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