:root{--brand-h: 250;--brand-s: 84%;--brand-l: 60%;--brand: hsl(var(--brand-h) var(--brand-s) var(--brand-l));--brand-strong: hsl(var(--brand-h) var(--brand-s) calc(var(--brand-l) - 8%));--brand-soft: hsl(var(--brand-h) var(--brand-s) var(--brand-l) / .12);--brand-contrast: #ffffff;--radius-sm: 6px;--radius: 10px;--radius-lg: 16px;--shadow-sm: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .1);--shadow-md: 0 4px 8px -2px rgba(16, 24, 40, .1), 0 2px 4px -2px rgba(16, 24, 40, .06);--shadow-lg: 0 12px 24px -6px rgba(16, 24, 40, .12);--font-sans: "Inter", "Pretendard", system-ui, -apple-system, "Segoe UI", sans-serif;--transition: .16s cubic-bezier(.4, 0, .2, 1)}:root,:root[data-theme=light]{--bg: #f6f7f9;--surface: #ffffff;--surface-2: #f0f1f4;--surface-hover: #f3f4f6;--border: #e4e7ec;--border-strong: #d0d5dd;--text: #101828;--text-2: #475467;--text-3: #98a2b3;--success: #16a34a;--warning: #d97706;--danger: #dc2626;--danger-soft: rgba(220, 38, 38, .1);color-scheme:light}:root[data-theme=dark]{--bg: #0c0e12;--surface: #15181e;--surface-2: #1c2027;--surface-hover: #22262e;--border: #272b33;--border-strong: #363b45;--text: #f0f2f5;--text-2: #a3acba;--text-3: #6b7480;--brand-l: 64%;--brand-soft: hsl(var(--brand-h) var(--brand-s) var(--brand-l) / .18);--success: #22c55e;--warning: #f59e0b;--danger: #f87171;--danger-soft: rgba(248, 113, 113, .14);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);--shadow-md: 0 4px 10px rgba(0, 0, 0, .45);--shadow-lg: 0 14px 28px rgba(0, 0, 0, .5);color-scheme:dark}*{box-sizing:border-box}html,body,#app{height:100%;margin:0}body{font-family:var(--font-sans);background:var(--bg);color:var(--text);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased;transition:background var(--transition),color var(--transition)}a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3,h4{margin:0;color:var(--text);font-weight:650;letter-spacing:-.01em}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-sm)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:9px 16px;border-radius:var(--radius-sm);border:1px solid transparent;font:inherit;font-weight:600;font-size:13px;cursor:pointer;transition:background var(--transition),border-color var(--transition),opacity var(--transition);white-space:nowrap}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-primary{background:var(--brand);color:var(--brand-contrast)}.btn-primary:hover:not(:disabled){background:var(--brand-strong)}.btn-ghost{background:transparent;color:var(--text-2);border-color:var(--border-strong)}.btn-ghost:hover:not(:disabled){background:var(--surface-hover);color:var(--text)}.btn-danger{background:var(--danger);color:#fff}.btn-sm{padding:6px 11px;font-size:12px}.input,.textarea,.select{width:100%;padding:9px 12px;background:var(--surface);border:1px solid var(--border-strong);border-radius:var(--radius-sm);color:var(--text);font:inherit;font-size:13px;transition:border-color var(--transition),box-shadow var(--transition)}.input:focus,.textarea:focus,.select:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}.textarea{resize:vertical;min-height:90px}.label{display:block;font-size:12px;font-weight:600;color:var(--text-2);margin-bottom:6px}.badge{display:inline-flex;align-items:center;padding:2px 9px;border-radius:999px;font-size:11px;font-weight:600;background:var(--surface-2);color:var(--text-2);border:1px solid var(--border)}.badge-brand{background:var(--brand-soft);color:var(--brand);border-color:transparent}.badge-success{background:#22c55e1f;color:var(--success);border-color:transparent}.badge-warning{background:#f59e0b24;color:var(--warning);border-color:transparent}.muted{color:var(--text-3)}.stack{display:flex;flex-direction:column;gap:16px}.row{display:flex;align-items:center;gap:10px}.spread{display:flex;align-items:center;justify-content:space-between;gap:12px}.spinner{width:16px;height:16px;border:2px solid var(--brand-soft);border-top-color:var(--brand);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}