:root { --coral: #FF7A5C; --ink: #1c1917; --muted: #78716c; --line: #e7e5e4; --bg: #FAFAF7; }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Pretendard", "Noto Sans KR", sans-serif; }
.wrap { max-width: 560px; margin: 0 auto; padding: 24px 16px 40px; }
.brand { font-weight: 800; font-size: 20px; letter-spacing: -0.02em; margin: 8px 0 20px; }
.brand span { color: var(--coral); }
.card { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 20px; margin-bottom: 16px; }
.card h2 { font-size: 15px; margin: 0 0 12px; color: var(--muted); font-weight: 600; }
.row { display: flex; justify-content: space-between; gap: 12px; padding: 6px 0; font-size: 15px; }
.row .k { color: var(--muted); flex-shrink: 0; }
.row .v { text-align: right; word-break: keep-all; }
.total { border-top: 1px solid var(--line); margin-top: 8px; padding-top: 12px; font-weight: 800; font-size: 18px; }
.btn { display: block; width: 100%; border: 0; border-radius: 14px; padding: 16px; font-size: 17px; font-weight: 700; background: var(--coral); color: #fff; cursor: pointer; text-align: center; text-decoration: none; }
.btn:disabled { opacity: .5; cursor: default; }
.btn.ghost { background: #fff; color: var(--ink); border: 1px solid var(--line); margin-top: 10px; }
.msg { text-align: center; padding: 32px 0 8px; }
.msg h1 { font-size: 22px; margin: 0 0 8px; }
.msg p { color: var(--muted); margin: 0; line-height: 1.6; }
.error { color: #c2410c; }
footer { color: var(--muted); font-size: 12px; line-height: 1.7; text-align: center; margin-top: 28px; }