:root{--color-primary: #2563eb;--color-accent: #f59e0b;--bg: #f7f8fa;--surface: #ffffff;--surface-2: #f1f3f5;--border: #e5e7eb;--text: #1f2430;--text-muted: #6b7280;--text-faint: #9ca3af;--danger: #ef4444;--warning: #f59e0b;--success: #16a34a;--info: #2563eb;--radius: 10px;--radius-sm: 7px;--shadow: 0 1px 2px rgba(16, 24, 40, .05), 0 1px 3px rgba(16, 24, 40, .08);--shadow-lg: 0 10px 30px rgba(16, 24, 40, .12);--font: -apple-system, BlinkMacSystemFont, "Pretendard", "Apple SD Gothic Neo", "Segoe UI", Roboto, "Helvetica Neue", sans-serif;font-family:var(--font);color:var(--text);background:var(--bg)}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}button{font-family:inherit;cursor:pointer;border:none;background:none}input,textarea,select{font-family:inherit;font-size:14px;color:var(--text);background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);padding:8px 10px;outline:none}input:focus,textarea:focus,select:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px color-mix(in srgb,var(--color-primary) 18%,transparent)}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border-radius:var(--radius-sm);font-size:14px;font-weight:600;background:var(--surface-2);color:var(--text);transition:filter .12s ease,background .12s ease}.btn:hover{filter:brightness(.97)}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover{filter:brightness(1.06)}.btn-ghost{background:transparent}.btn-ghost:hover{background:var(--surface-2)}.btn-sm{padding:5px 10px;font-size:13px}.btn:disabled{opacity:.5;cursor:not-allowed}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.muted{color:var(--text-muted)}.faint{color:var(--text-faint)}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-thumb{background:#d1d5db;border-radius:6px;border:2px solid var(--bg)}::-webkit-scrollbar-thumb:hover{background:#b6bcc4}