:root{color-scheme:dark;--canvas: #0d1117;--canvas-deep: #010409;--surface: #161b22;--surface-raised: #1c2128;--surface-muted: #21262d;--border: #30363d;--border-muted: #21262d;--text-primary: #f0f6fc;--text-secondary: #c9d1d9;--text-tertiary: #8b949e;--accent-green: #5fed83;--accent-green-hover: #7ef59a;--accent-green-dim: #238636;--accent-blue: #8dd6ff;--accent-purple: #9350ff;--accent-indigo: #5049c2;--brand: var(--accent-green);--brand-fg: var(--text-inverse);--brand-light: rgba(95, 237, 131, .12);--accent: var(--accent-blue);--accent-light: rgba(141, 214, 255, .12);--info: var(--accent-blue);--info-light: rgba(141, 214, 255, .1);--success: var(--accent-green);--success-light: rgba(95, 237, 131, .1);--font-heading: "Inter", system-ui, sans-serif;--font-body: "Inter", system-ui, sans-serif;--font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-full: 9999px;--shadow-glow-green: 0 0 24px rgba(95, 237, 131, 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transparent;border-radius:var(--radius-sm);font-family:var(--font-body);font-size:var(--text-base);font-weight:var(--weight-semibold);letter-spacing:-.01em;cursor:pointer;user-select:none;transition:background var(--duration-fast) var(--ease-standard),border-color var(--duration-fast) var(--ease-standard),color var(--duration-fast) var(--ease-standard),box-shadow var(--duration-fast) var(--ease-standard),transform var(--duration-fast) var(--ease-spring)}.btn:active{transform:translateY(1px)}.btn-sm{height:var(--size-control-sm);padding:0 var(--space-14);font-size:var(--text-md)}.btn-lg{height:var(--size-control-lg);padding:0 var(--space-24);font-size:var(--text-lg);border-radius:var(--radius-md)}.btn-primary{background:linear-gradient(180deg,#7ef59a 0%,var(--accent-green) 100%);color:var(--text-inverse);box-shadow:var(--shadow-glow-green),inset 0 1px #ffffff40}.btn-primary:hover{background:linear-gradient(180deg,#9effb3 0%,var(--accent-green-hover) 100%);box-shadow:0 0 32px 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a:hover{color:var(--accent-blue)}@media(max-width:640px){.hub-header{flex-direction:column}.hub-tile-grid,.card-grid-tight{grid-template-columns:1fr}.start-path-steps{flex-direction:column;align-items:stretch}.start-path-sep{display:none}}