* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; display: flex; align-items: flex-start; justify-content: center; padding: 48px 16px; font-family: system-ui, -apple-system, "Segoe UI", "Malgun Gothic", sans-serif; background: #f4f5f7; color: #1d2127; }
.card { width: 100%; max-width: 440px; background: #fff; border-radius: 12px; padding: 28px 24px; box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06); }
h1 { font-size: 22px; margin: 0 0 20px; }
.done { text-align: center; padding: 48px 24px; }
.done h1 { margin: 0; }
.muted { color: #6b7280; margin: 0 0 20px; line-height: 1.5; }
label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 14px; }
input { display: block; width: 100%; margin-top: 6px; padding: 11px 12px; font-size: 15px; border: 1px solid #d1d5db; border-radius: 8px; }
input:focus { outline: 2px solid #2563eb; border-color: transparent; }
button { width: 100%; padding: 13px; font-size: 16px; font-weight: 700; color: #fff; background: #2563eb; border: 0; border-radius: 8px; cursor: pointer; margin-top: 6px; }
button:disabled { opacity: 0.6; cursor: default; }
.message { min-height: 1.5em; margin: 16px 0 0; color: #2563eb; }
.message.error { color: #dc2626; }
.info { display: grid; grid-template-columns: auto 1fr; gap: 8px 16px; margin: 0 0 20px; font-size: 14px; }
.info dt { color: #6b7280; }
.info dd { margin: 0; word-break: break-all; }
a { color: #2563eb; }
select { display: block; width: 100%; margin-top: 6px; padding: 11px 12px; font-size: 15px; border: 1px solid #d1d5db; border-radius: 8px; background: #fff; }
.req, .opt { font-size: 12px; font-weight: 500; margin-left: 4px; padding: 1px 6px; border-radius: 4px; }
.req { color: #b91c1c; background: #fee2e2; }
.opt { color: #4b5563; background: #f3f4f6; }