:root { --text:#1e293b; --muted:#475569; --line:#e2e8f0; --accent:#1d4ed8; --bg:#f8fafc; --card:#ffffff; --err:#b91c1c; }
* { box-sizing:border-box; }
body { margin:0; background:var(--bg); color:var(--text); font-family:'Noto Sans KR','Apple SD Gothic Neo','Malgun Gothic',sans-serif; line-height:1.7; }
.wrap { max-width:720px; margin:0 auto; padding:28px 16px 48px; }
.nav { margin-bottom:16px; font-size:.95rem; }
a { color:var(--accent); }
h1 { font-size:1.6rem; margin:0 0 4px; }
.sub { color:var(--muted); margin:0 0 18px; }
.card { background:var(--card); border:1px solid var(--line); border-radius:14px; padding:22px 20px; }
.card h2 { font-size:1.05rem; margin:22px 0 10px; }
.card h2:first-child { margin-top:0; }
.plans { display:grid; grid-template-columns:repeat(auto-fit, minmax(220px, 1fr)); gap:10px; }
.plan-opt { display:flex; gap:10px; align-items:flex-start; border:1.5px solid var(--line); border-radius:12px; padding:14px; cursor:pointer; }
.plan-opt:has(input:checked) { border-color:var(--accent); background:#eff6ff; }
.plan-opt input { margin-top:6px; }
.plan-body { display:flex; flex-direction:column; }
.price { font-size:1.25rem; font-weight:800; color:var(--accent); }
.small { font-size:.88rem; color:var(--muted); }
.center { text-align:center; }
.fields { display:grid; gap:10px; }
.fields label { display:flex; flex-direction:column; font-weight:600; font-size:.95rem; }
.fields input { margin-top:4px; padding:11px 12px; font-size:1rem; border:1px solid #cbd5e1; border-radius:8px; }
.summary { width:100%; border-collapse:collapse; font-size:.95rem; }
.summary th, .summary td { border-bottom:1px solid var(--line); padding:9px 6px; text-align:left; vertical-align:top; }
.summary th { width:36%; color:var(--muted); font-weight:600; }
.agree { margin:18px 0 8px; display:grid; gap:8px; font-size:.92rem; }
.agree label { display:flex; gap:8px; align-items:flex-start; }
.agree input { margin-top:5px; flex:none; }
.btn { width:100%; margin-top:10px; padding:15px; font-size:1.08rem; font-weight:800; color:#fff; background:var(--accent); border:0; border-radius:10px; cursor:pointer; }
.btn:disabled { background:#94a3b8; cursor:not-allowed; }
.error { color:var(--err); font-weight:600; margin:8px 0 0; }
.banner { border-radius:10px; padding:12px 14px; margin-bottom:14px; font-weight:600; }
.banner.test { background:#fef9c3; border:1px solid #fde047; }
.banner.wait { background:#f1f5f9; border:1px solid #cbd5e1; }
.result { text-align:center; }
.result .icon { font-size:2.6rem; }
footer { margin-top:24px; color:var(--muted); font-size:.85rem; line-height:1.7; }