:root{--color-primary:#60a5fa;--color-primary-hover:#3b82f6;--color-bg:#0f172a;--color-surface:#1e293b;--color-surface-2:#334155;--color-border:#334155;--color-text:#e2e8f0;--color-text-muted:#94a3b8;--color-danger:#f87171;--radius:8px;--font-sans:system-ui, -apple-system, "Segoe UI", "Hiragino Kaku Gothic ProN", "Noto Sans JP", Meiryo, sans-serif}*{box-sizing:border-box}body,html{margin:0;padding:0}body{background:var(--color-bg);color:var(--color-text);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;line-height:1.6}a{color:var(--color-primary);text-decoration:none}a:hover{color:var(--color-primary-hover)}button{font-family:inherit}