:root{--bg:#f4f8f6;--surface:#fff;--soft:#e3f1ea;--text:#17241f;--muted:#556660;--line:#d3e2db;--accent:#1f8a5b;--accent-strong:#136342;--on-accent:#fff;--good:#2f7d4f;--warn:#b3261e;color-scheme:light;font-family:Apple SD Gothic Neo,Malgun Gothic,맑은 고딕,sans-serif}@media (prefers-color-scheme:dark){:root{--bg:#121815;--surface:#1a221e;--soft:#1f3128;--text:#ecf3ef;--muted:#a3b3ac;--line:#2f3d36;--accent:#3fbf85;--accent-strong:#7fe0b2;--on-accent:#08160f;--good:#6cc391;--warn:#ff8a80;color-scheme:dark}}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font-size:16px;line-height:1.7}a{color:var(--accent-strong)}.wrap{width:min(960px,100% - 32px);margin:0 auto}.skip-link{position:absolute;left:-999px}.skip-link:focus{background:var(--surface);z-index:9;padding:8px;top:8px;left:8px}.site-header{border-bottom:1px solid var(--line);background:var(--surface)}.header-inner{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;min-height:64px;display:flex}.brand{color:var(--text);align-items:center;gap:10px;font-size:19px;font-weight:800;text-decoration:none;display:flex}.brand small{color:var(--muted);font-size:12px;font-weight:500;display:block}.brand-mark{background:var(--accent);width:36px;height:36px;color:var(--on-accent);border-radius:10px;place-items:center;display:grid}.site-header nav{gap:16px;font-size:14px;font-weight:600;display:flex}.site-header nav a{color:var(--muted);text-decoration:none}main{padding:24px 0 48px}h1{letter-spacing:-.5px;margin:8px 0 12px;font-size:clamp(24px,4vw,32px);line-height:1.3}h2{margin:36px 0 12px;font-size:21px}h3{margin:20px 0 8px;font-size:17px}.lead{color:var(--muted);font-size:17px}.answer{background:var(--soft);border-left:4px solid var(--accent);border-radius:8px;padding:14px 16px}.card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px}.calc-grid{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;display:grid}.calc-grid label{gap:4px;font-size:14px;font-weight:600;display:grid}.calc-grid input,.calc-grid select{border:1px solid var(--line);background:var(--bg);width:100%;color:var(--text);border-radius:8px;padding:9px 10px;font-size:16px}.hint{color:var(--muted);font-size:13px;font-weight:400}.result{grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:10px;margin-top:16px;display:grid}.result div{background:var(--soft);border-radius:10px;padding:12px}.result strong{font-size:22px;display:block}.result span{color:var(--muted);font-size:13px}.table-wrap{overflow-x:auto}table{border-collapse:collapse;background:var(--surface);width:100%;font-size:15px}th,td{border:1px solid var(--line);text-align:right;white-space:nowrap;padding:8px 10px}th:first-child,td:first-child{text-align:left}thead th{background:var(--soft)}caption{text-align:left;color:var(--muted);caption-side:bottom;padding:6px 0;font-size:13px}.grid{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:10px;padding:0;list-style:none;display:grid}.grid a{background:var(--surface);border:1px solid var(--line);color:var(--text);border-radius:10px;padding:12px 14px;text-decoration:none;display:block}.grid a small{color:var(--muted);display:block}.shop{margin-top:32px}.shop ul{gap:8px;padding:0;list-style:none;display:grid}.shop li a{font-weight:700}.shop .disclosure,.crumbs{color:var(--muted);font-size:13px}.crumbs a{color:var(--muted)}details{background:var(--surface);border:1px solid var(--line);border-radius:10px;margin:8px 0;padding:10px 14px}summary{cursor:pointer;font-weight:700}.site-footer{border-top:1px solid var(--line);color:var(--muted);padding:24px 0;font-size:14px}.site-footer nav{flex-wrap:wrap;gap:14px;margin:8px 0;display:flex}.result .big{background:var(--accent);color:var(--on-accent);grid-column:1/-1}.result .big span{color:var(--on-accent);opacity:.85}.result .big strong{font-size:30px}fieldset{border:1px solid var(--line);border-radius:12px;margin:14px 0 0;padding:12px 14px 14px}legend{padding:0 6px;font-weight:800}.calc-grid label.check{grid-template-columns:auto 1fr;align-items:center;font-weight:500}.calc-grid label.check input{width:auto}.breakdown td:last-child{font-variant-numeric:tabular-nums}.note{color:var(--muted);font-size:14px}