#tool{position:relative;overflow:hidden}
#tool::before{content:"도구 실행";display:block;margin:-4px 0 22px;color:var(--brand);font-size:12px;font-weight:900;letter-spacing:.12em;text-transform:uppercase}
.panel{padding:30px;border-radius:24px;box-shadow:0 18px 45px -32px rgba(15,23,42,.38)}
.field{min-width:0;margin-bottom:18px}
.field label{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:8px;color:var(--text);font-size:14px;font-weight:800}
.input,.textarea,.select{min-height:48px;border-color:var(--line);background:color-mix(in srgb,var(--card) 72%,var(--bg));transition:border-color .15s,box-shadow .15s,background .15s}
.input:hover,.textarea:hover,.select:hover{border-color:color-mix(in srgb,var(--brand) 52%,var(--line))}
.input:focus,.textarea:focus,.select:focus{background:var(--card);box-shadow:0 0 0 4px color-mix(in srgb,var(--brand) 14%,transparent)}
.textarea{min-height:190px;line-height:1.65}
.hint{margin:2px 0 0;color:var(--muted);font-size:13px;line-height:1.55}
.check{display:flex;align-items:center;gap:9px;min-height:48px;padding:11px 13px;border:1px solid var(--line);border-radius:12px;background:color-mix(in srgb,var(--card) 72%,var(--bg));font-size:14px;font-weight:700;cursor:pointer}
.check input{width:18px;height:18px;accent-color:var(--brand)}
.actions{align-items:center;margin-top:22px;padding-top:18px;border-top:1px solid var(--line)}
.btn{min-height:44px;padding:11px 18px;box-shadow:0 8px 20px -14px var(--brand);transition:transform .15s,filter .15s,opacity .15s}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn:disabled{cursor:wait;opacity:.55;transform:none}
.action-status{margin-left:auto;color:var(--muted);font-size:13px;font-weight:700}
.result{position:relative;margin-top:20px;min-height:84px;padding:20px;border-color:color-mix(in srgb,var(--brand) 34%,var(--line));background:color-mix(in srgb,var(--soft) 54%,var(--card));line-height:1.7}
.result::before{content:"결과";display:block;margin-bottom:8px;color:var(--muted);font-size:11px;font-weight:900;letter-spacing:.12em}
.result strong{display:inline-block;margin-bottom:3px;font-size:clamp(20px,3vw,28px);line-height:1.35}
.result.is-error{border-color:#fca5a5;background:#fff1f2;color:#991b1b}
.result.is-error::before{content:"확인 필요";color:#b91c1c}
.dark .result.is-error{border-color:#7f1d1d;background:rgba(127,29,29,.24);color:#fecaca}
.preview{border-color:var(--line);background:color-mix(in srgb,var(--card) 80%,var(--bg))}
.metric-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px;margin-top:14px}
.metric{padding:14px;border:1px solid var(--line);border-radius:14px;background:var(--card)}
.metric span{display:block;color:var(--muted);font-size:12px;font-weight:700}
.metric b{display:block;margin-top:4px;font-size:18px}
.code-output{display:block;padding:14px;border:1px solid var(--line);border-radius:12px;background:var(--bg);font:13px/1.65 ui-monospace,SFMono-Regular,Consolas,monospace;white-space:pre-wrap;overflow-wrap:anywhere}
.tool-table-wrap{margin-top:16px;overflow:auto;border:1px solid var(--line);border-radius:14px}
.tool-table{width:100%;border-collapse:collapse;min-width:540px;background:var(--card);font-size:14px}
.tool-table th,.tool-table td{padding:11px 13px;border-bottom:1px solid var(--line);text-align:right;white-space:nowrap}
.tool-table th:first-child,.tool-table td:first-child{text-align:left}
.tool-table th{background:var(--bg);color:var(--muted);font-size:12px}
.tool-table tr:last-child td{border-bottom:0}
.segmented{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}
.segmented button{padding:9px 13px;border:1px solid var(--line);border-radius:10px;background:var(--card);color:var(--text);font:inherit;font-size:14px;font-weight:700;cursor:pointer}
.segmented button:hover,.segmented button[aria-pressed="true"]{border-color:var(--brand);background:var(--soft);color:var(--brand)}
.inline-note{padding:12px 14px;border-left:3px solid var(--brand);border-radius:8px;background:var(--soft);color:var(--muted);font-size:13px}
.wheel-stage{position:relative;display:grid;place-items:center;min-height:330px;margin:18px 0;overflow:hidden}
.wheel-stage::before{content:"";position:absolute;z-index:2;top:12px;border-left:13px solid transparent;border-right:13px solid transparent;border-top:27px solid var(--text)}
.wheel-disc{display:grid;place-items:center;width:min(280px,76vw);aspect-ratio:1;border:9px solid var(--card);border-radius:50%;background:conic-gradient(#4f46e5 0 120deg,#06b6d4 120deg 240deg,#f59e0b 240deg);box-shadow:0 18px 45px -22px rgba(15,23,42,.6);transition:transform 2.25s cubic-bezier(.12,.68,.12,1)}
.wheel-disc span{display:grid;place-items:center;width:62px;aspect-ratio:1;border:7px solid var(--card);border-radius:50%;background:var(--text);color:var(--card);font-size:24px;font-weight:900}
@media(max-width:700px){.panel{padding:20px;border-radius:18px}.actions{display:grid;grid-template-columns:1fr 1fr}.actions .btn:first-child{grid-column:1/-1}.action-status{grid-column:1/-1;margin-left:0;text-align:center}.result{padding:17px}.textarea{min-height:160px}}