:root {
  --bg: #f6f7f9; --card: #ffffff; --text: #1f2430; --muted: #6b7280; --line: #dfe3ea;
  --primary: #234e9b; --primary-text: #ffffff; --error: #b42318; --warn: #8a5a00; --ok: #17694a;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.6 "Pretendard", "Malgun Gothic", "Apple SD Gothic Neo", sans-serif; }
a { color: var(--primary); }
header.top { display: flex; flex-wrap: wrap; gap: 8px 20px; align-items: center; padding: 12px 16px; background: var(--card); border-bottom: 1px solid var(--line); }
.brand { font-weight: 700; text-decoration: none; color: var(--text); }
nav { display: flex; flex-wrap: wrap; gap: 6px 16px; align-items: center; }
main { max-width: 960px; margin: 0 auto; padding: 16px; }
footer { text-align: center; color: var(--muted); font-size: 13px; padding: 24px 0; }
h1 { font-size: 22px; margin: 12px 0; }
h2 { font-size: 18px; margin: 4px 0 12px; }
h3 { font-size: 16px; margin: 20px 0 8px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 16px; margin: 16px 0; }
.narrow { max-width: 420px; margin-left: auto; margin-right: auto; }
label { display: block; margin: 10px 0; font-size: 14px; color: var(--muted); }
input, select, textarea { display: block; width: 100%; margin-top: 4px; padding: 9px 10px; border: 1px solid var(--line); border-radius: 8px; font: inherit; color: var(--text); background: #fff; }
input.small { width: 84px; display: inline-block; }
input.medium { width: 150px; display: inline-block; }
input[type="radio"] { display: inline; width: auto; margin: 0 4px 0 0; }
textarea { resize: vertical; }
fieldset { border: 1px solid var(--line); border-radius: 8px; margin: 12px 0; padding: 4px 12px 8px; }
legend { color: var(--muted); font-size: 14px; padding: 0 6px; }
button, a.button { display: inline-block; padding: 9px 14px; border: 1px solid var(--line); border-radius: 8px; background: #fff; color: var(--text); font: inherit; cursor: pointer; text-decoration: none; }
button.primary { background: var(--primary); border-color: var(--primary); color: var(--primary-text); }
button.link { border: 0; background: none; color: var(--primary); padding: 0; text-decoration: underline; }
form.inline { display: inline; }
form.row { display: flex; flex-wrap: wrap; gap: 8px 12px; align-items: flex-end; }
form.row label { margin: 0; flex: 1 1 180px; }
.tabs { display: flex; flex-wrap: wrap; gap: 8px; }
.tab, .radio { display: inline-block; padding: 8px 12px; border: 1px solid var(--line); border-radius: 8px; color: var(--text); margin: 4px 8px 4px 0; }
.hint { color: var(--muted); font-size: 14px; }
.notice { background: #e8f1ff; border: 1px solid #bcd3f7; border-radius: 8px; padding: 10px 12px; }
.error { color: var(--error); }
.issues { border-radius: 8px; padding: 10px 14px; margin: 12px 0; }
.issues.error { background: #fdecea; border: 1px solid #f3b8b1; color: var(--error); }
.issues.warn { background: #fff6df; border: 1px solid #edd08a; color: var(--warn); }
.issues ul { margin: 6px 0 0; padding-left: 20px; }
.images { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 8px; margin-bottom: 12px; }
.images img { width: 100%; height: auto; border-radius: 6px; border: 1px solid var(--line); }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--line); vertical-align: top; }
td.actions form { margin: 2px 6px 2px 0; }
.status { padding: 2px 8px; border-radius: 999px; background: #eef0f4; font-size: 13px; white-space: nowrap; }
.status.completed, .status.generated { background: #e1f4ec; color: var(--ok); }
.status.failed { background: #fdecea; color: var(--error); }
.code { font-size: 30px; letter-spacing: 6px; }
code { background: #eef0f4; border-radius: 4px; padding: 1px 5px; font-size: 14px; }
.phrase-group { display: flex; flex-wrap: wrap; gap: 6px; align-items: flex-start; margin: 4px 0 12px; }
.phrase-group .hint { flex: 1 0 100%; }
.phrase-group[hidden] { display: none; }
button.phrase-pick { flex: 1 1 240px; text-align: left; font-size: 14px; white-space: pre-line; color: var(--text); }
pre.preview { margin: 4px 0 12px; padding: 10px 12px; background: var(--bg); border: 1px dashed var(--line); border-radius: 8px; font: inherit; font-size: 14px; white-space: pre-wrap; }
pre.live { margin: 12px 0 0; padding: 12px 14px; max-height: 60vh; overflow-y: auto; background: var(--bg); border: 1px solid var(--line); border-radius: 8px; font: inherit; white-space: pre-wrap; }
#suggestions label { color: var(--text); border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; }
#suggestions small { display: block; color: var(--muted); }
@media (max-width: 640px) {
  table, thead, tbody, tr, td, th { display: block; }
  thead { display: none; }
  tr { border-bottom: 1px solid var(--line); padding: 6px 0; }
  td { border: 0; padding: 2px 0; }
}