:root{--color-primary:#f85818;--color-primary-hover:#e04d10;--color-primary-light:#fff3ed;--color-primary-soft:#fff7f3;--color-bg:#f5f5f5;--color-surface:#fff;--color-border:#e0e0e0;--color-text:#222;--color-text-secondary:#555;--color-text-muted:#888;--color-sidebar:#1a1a2e;--color-sidebar-accent:#f85818;--color-success:#2e7d32;--color-success-bg:#e8f5e9;--color-warning:#e65100;--color-warning-bg:#fff3e0;--color-error:#c62828;--color-error-bg:#ffebee;--color-info:#0d47a1;--color-info-bg:#e3f2fd;--text-xs:.75rem;--text-sm:.8125rem;--text-base:.875rem;--text-lg:1rem;--text-xl:1.125rem;--text-2xl:1.25rem;--text-3xl:1.5rem;--font-body:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--font-mono:"SF Mono","Cascadia Code","Consolas",monospace}:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px;border-radius:2px}button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}body{font-family:var(--font-body);font-size:var(--text-base);line-height:1.6;color:var(--color-text);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}h1{font-size:var(--text-3xl);font-weight:700;letter-spacing:-.02em}h2{font-size:var(--text-2xl);letter-spacing:-.01em}h2,h3{font-weight:600}h3{font-size:var(--text-xl)}.btn-primary{background:var(--color-primary);color:#fff;border:none;padding:.625rem 1.25rem;border-radius:6px;cursor:pointer;font-size:var(--text-base);font-weight:500;text-decoration:none;display:inline-flex;align-items:center;transition:background .15s}.btn-primary:hover{background:var(--color-primary-hover)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}