:root{--ink:#17212b;--muted:#687481;--line:#d9e0e5;--paper:#f5f7f8;--panel:#fff;--accent:#e5482d;--accent-dark:#ba321d;--navy:#18364d;--soft:#eaf0f4}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:Pretendard,"Noto Sans KR","Malgun Gothic",sans-serif}.app-header{min-height:150px;padding:34px max(24px,calc((100vw - 1180px)/2));display:flex;align-items:flex-end;justify-content:space-between;color:#fff;background:linear-gradient(120deg,#12293a,#214b67)}.eyebrow{margin:0 0 8px!important;color:#f2aa9e;font-size:12px;font-weight:800;letter-spacing:.18em}.app-header h1{margin:0;font-size:32px;letter-spacing:-.04em}.app-header p{margin:8px 0 0;color:#cbd7df}.live-total{text-align:right}.live-total span{display:block;color:#cbd7df;font-size:13px}.live-total strong{display:block;margin-top:5px;font-size:28px;color:#fff}.screen-tabs{position:sticky;top:0;z-index:5;display:flex;justify-content:center;gap:10px;padding:12px;background:rgba(245,247,248,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}.tab{width:190px;padding:10px 18px;border:1px solid var(--line);border-radius:14px;background:#fff;color:var(--muted);display:flex;align-items:center;gap:12px;font-size:15px;cursor:pointer}.tab b{display:grid;place-items:center;width:30px;height:30px;border-radius:9px;background:var(--soft);color:var(--navy)}.tab.active{border-color:var(--navy);box-shadow:0 5px 16px #15364d1a;color:var(--ink);font-weight:800}.tab.active b{background:var(--navy);color:#fff}main{max-width:1180px;margin:0 auto;padding:32px 22px 80px}.screen{display:none}.screen.active{display:block}.section-heading{display:flex;gap:14px;align-items:center;margin:26px 0 14px}.section-heading>span{font-size:12px;font-weight:900;color:var(--accent)}.section-heading h2{margin:0;font-size:20px}.section-heading p{margin:3px 0 0;font-size:13px;color:var(--muted)}.form-grid{display:grid;gap:12px;padding:18px;background:var(--panel);border:1px solid var(--line);border-radius:16px}.form-grid.four{grid-template-columns:repeat(4,1fr)}.form-grid.three{grid-template-columns:repeat(3,1fr)}label{font-size:12px;font-weight:800;color:var(--muted)}input,select{width:100%;height:45px;margin-top:7px;padding:0 12px;border:1px solid #cbd3d9;border-radius:9px;background:#fff;color:var(--ink);font-size:15px;font-weight:700;outline:none}input:focus,select:focus{border-color:var(--navy);box-shadow:0 0 0 3px #18364d12}.metric{padding:10px 14px;border-radius:10px;background:var(--navy);color:#fff}.metric span{font-size:12px;color:#bfcdd7}.metric strong{display:block;margin-top:5px;font-size:22px}.choice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:12px}.choice{display:flex;align-items:center;gap:12px;padding:15px;border:1px solid var(--line);border-radius:12px;background:#fff;cursor:pointer}.choice input{width:20px;height:20px;margin:0;accent-color:var(--accent)}.choice span{color:var(--ink);font-size:14px}.choice small{display:block;margin-top:3px;color:var(--muted);font-weight:500}.primary,.secondary{border:0;border-radius:12px;font-size:15px;font-weight:900;cursor:pointer}.primary{display:flex;justify-content:space-between;width:100%;margin-top:28px;padding:17px 22px;color:#fff;background:var(--accent)}.primary:hover{background:var(--accent-dark)}.result-hero{display:flex;justify-content:space-between;align-items:end;padding:28px;border-radius:18px;background:linear-gradient(130deg,#e6492f,#ba321d);color:#fff}.result-hero p{margin:0 0 8px;color:#ffd9d2}.result-hero strong{display:block;font-size:42px}.result-hero span{display:block;margin-top:8px;color:#ffe6e1}.secondary{padding:12px 16px;background:#fff;color:var(--accent-dark)}.cost-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:14px 0}.cost-cards div{padding:18px;border:1px solid var(--line);border-radius:14px;background:#fff}.cost-cards span{display:block;color:var(--muted);font-size:12px}.cost-cards strong{display:block;margin-top:5px;font-size:21px}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:14px;background:#fff}table{width:100%;border-collapse:collapse;min-width:900px}th,td{padding:13px 12px;border-bottom:1px solid var(--line);text-align:right;font-size:13px}th{background:var(--soft);color:#42525f;font-size:12px}th:nth-child(-n+5),td:nth-child(-n+5){text-align:left}tbody tr:last-child td{border-bottom:0}.group{color:var(--accent);font-weight:900}.notice{padding:14px;color:var(--muted);font-size:12px;text-align:center}
@media(max-width:760px){.app-header{min-height:170px;padding:28px 20px;align-items:flex-start;flex-direction:column}.app-header h1{font-size:26px}.live-total{text-align:left;margin-top:20px}.screen-tabs{justify-content:stretch}.tab{width:50%;justify-content:center}.tab span{font-size:13px}main{padding:18px 14px 60px}.form-grid.four,.form-grid.three{grid-template-columns:1fr 1fr}.choice-grid{grid-template-columns:1fr}.result-hero{align-items:flex-start;gap:20px;flex-direction:column}.result-hero strong{font-size:34px}.cost-cards{grid-template-columns:1fr}.table-wrap{border:0;background:transparent;overflow:visible}table{min-width:0}thead{display:none}tbody{display:grid;gap:10px}tbody tr{display:grid;grid-template-columns:1fr 1fr;padding:14px;border:1px solid var(--line);border-radius:13px;background:#fff}td{display:flex;justify-content:space-between;gap:12px;padding:7px;border:0;text-align:right!important}td:before{content:attr(data-label);color:var(--muted);font-size:11px;font-weight:700}td:nth-child(1){grid-column:1/-1;padding-bottom:2px}.form-grid label:first-child:last-child{grid-column:1/-1}}
.header-actions{display:flex;align-items:flex-end;gap:18px}.install-button{padding:11px 16px;border:1px solid #ffffff55;border-radius:10px;background:#fff;color:var(--navy);font-weight:900;cursor:pointer}.install-guide{position:fixed;inset:0;z-index:30;display:grid;place-items:end center;padding:18px;background:#09172199}.install-guide[hidden]{display:none}.install-guide>div{position:relative;width:min(100%,460px);padding:24px;border-radius:18px;background:#fff;box-shadow:0 20px 60px #0005}.install-guide h2{margin:0 0 10px}.install-guide p{margin:0;color:var(--muted);line-height:1.7}.install-guide button{position:absolute;top:12px;right:14px;border:0;background:none;font-size:28px;cursor:pointer}
@media(max-width:760px){.app-header{min-height:190px}.header-actions{width:100%;justify-content:space-between;align-items:flex-end;margin-top:20px}.live-total{text-align:right;margin-top:0}}