:root {
  --ground: #F2F4F3; --surface: #FFFFFF; --ink: #16201C; --muted: #5E6B66; --line: #DCE2DF;
  --field: #F7F9F8; --accent: #1F6F5C; --accent-ink: #FFFFFF;
  --long: #0E8A5F; --long-soft: #E3F4EC; --short: #C2413A; --short-soft: #FBE7E5;
  --close: #4A5560; --close-soft: #E8ECEF; --warn: #9A5B00; --warn-soft: #FFF3DC;
  --ok: #0E8A5F; --ok-soft: #E3F4EC; --bad: #C2413A; --bad-soft: #FBE7E5;
  --code-bg: #16201C; --code-ink: #D9F2E7;
  --sans: "IBM Plex Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "Cascadia Mono", Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --ground: #0F1513; --surface: #17201D; --ink: #E4ECE8; --muted: #93A29C; --line: #2A3531;
    --field: #121A17; --accent: #4FB89A; --accent-ink: #0F1513;
    --long: #3CC48E; --long-soft: #173127; --short: #EF6E66; --short-soft: #3A1E1C;
    --close: #A9B4BE; --close-soft: #232C33; --warn: #F0B45A; --warn-soft: #33280F;
    --ok: #3CC48E; --ok-soft: #173127; --bad: #EF6E66; --bad-soft: #3A1E1C;
    --code-bg: #0A0F0D; --code-ink: #BFEBD8;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--ground); color: var(--ink); font: 15px/1.55 var(--sans); }
a { color: var(--accent); }
[hidden] { display: none !important; }

.topbar { background: var(--surface); border-bottom: 1px solid var(--line); }
.topbar-in { max-width: 920px; margin: 0 auto; padding: 10px 16px; display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.brand { font-weight: 700; color: var(--ink); text-decoration: none; margin-right: auto; }
.nav { display: flex; gap: 4px; flex-wrap: wrap; }
.nav a { text-decoration: none; color: var(--muted); padding: 6px 10px; border-radius: 8px; font-size: 0.9rem; font-weight: 500; }
.nav a[aria-current="page"] { background: var(--field); color: var(--ink); font-weight: 600; }
.who { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; color: var(--muted); }
.who form { margin: 0; }

.wrap { max-width: 920px; margin: 0 auto; padding-inline: 16px; padding-block: 24px 56px; display: grid; gap: 18px; }
.narrow { max-width: 440px; }
h1 { font-size: 1.4rem; margin: 0; letter-spacing: -0.01em; text-wrap: balance; }
h2 { font-size: 1.02rem; margin: 0; }
.sub { color: var(--muted); margin: 4px 0 0; font-size: 0.92rem; }

.panel { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 18px; display: grid; gap: 14px; min-width: 0; align-content: start; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 720px) { .grid2 { grid-template-columns: 1fr; } }
.row { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; }

label, .label { font-size: 0.78rem; font-weight: 600; color: var(--muted); letter-spacing: 0.04em; display: block; margin-bottom: 6px; }
input[type="text"], input[type="email"], input[type="password"], input[type="number"], select, textarea {
  width: 100%; font: 500 0.95rem var(--sans); color: var(--ink); background: var(--field);
  border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px;
}
input.mono, .mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
textarea { min-height: 70px; resize: vertical; }
input:focus-visible, select:focus-visible, textarea:focus-visible, button:focus-visible, a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.check { display: flex; gap: 8px; align-items: flex-start; font-size: 0.88rem; color: var(--ink); letter-spacing: 0; font-weight: 400; }
.check input { margin-top: 4px; }

.btn { font: 600 0.9rem var(--sans); border: 0; border-radius: 8px; padding: 10px 16px; cursor: pointer;
  background: var(--accent); color: var(--accent-ink); white-space: nowrap; text-decoration: none; display: inline-block; }
.btn.ghost { background: transparent; color: var(--accent); border: 1px solid var(--line); }
.btn.danger { background: transparent; color: var(--bad); border: 1px solid var(--line); }
.btn.sm { padding: 6px 10px; font-size: 0.82rem; }
.btn.wide { width: 100%; }
.inline { display: inline; margin: 0; }
.actions-row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

.flash { border-radius: 10px; padding: 10px 14px; font-size: 0.9rem; }
.flash.ok { background: var(--ok-soft); color: var(--ok); }
.flash.err { background: var(--bad-soft); color: var(--bad); }
.note { font-size: 0.85rem; border-radius: 8px; padding: 8px 12px; background: var(--warn-soft); color: var(--warn); }
.hint { font-size: 0.8rem; color: var(--muted); }

.pill { display: inline-block; font-size: 0.75rem; font-weight: 600; padding: 2px 9px; border-radius: 999px; white-space: nowrap; }
.pill.ok { background: var(--ok-soft); color: var(--ok); }
.pill.bad { background: var(--bad-soft); color: var(--bad); }
.pill.warn { background: var(--warn-soft); color: var(--warn); }
.pill.admin { background: var(--code-bg); color: var(--code-ink); }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
th { text-align: left; font-size: 0.75rem; color: var(--muted); font-weight: 600; letter-spacing: 0.04em; padding: 8px 10px; border-bottom: 1px solid var(--line); white-space: nowrap; }
td { padding: 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
tr:last-child td { border-bottom: 0; }
td.num { font-family: var(--mono); font-variant-numeric: tabular-nums; white-space: nowrap; }
.empty { color: var(--muted); font-size: 0.9rem; }

pre, .code { margin: 0; background: var(--code-bg); color: var(--code-ink); font: 400 0.86rem/1.6 var(--mono);
  padding: 12px 14px; border-radius: 10px; white-space: pre-wrap; word-break: break-all; }
.copyline { display: flex; gap: 8px; align-items: stretch; }
.copyline code { flex: 1; min-width: 0; font: 400 0.85rem var(--mono); background: var(--field); border: 1px solid var(--line);
  border-radius: 8px; padding: 9px 12px; overflow-x: auto; white-space: nowrap; }

/* 메시지 만들기 */
.acts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.act { font: 600 1rem var(--sans); padding: 11px 8px; border-radius: 10px; border: 1.5px solid var(--line);
  background: var(--field); color: var(--muted); cursor: pointer; }
.act small { display: block; font-weight: 500; font-size: 0.72rem; opacity: 0.8; }
.act[aria-pressed="true"][data-v="long"]  { background: var(--long-soft);  border-color: var(--long);  color: var(--long); }
.act[aria-pressed="true"][data-v="short"] { background: var(--short-soft); border-color: var(--short); color: var(--short); }
.act[aria-pressed="true"][data-v="close"] { background: var(--close-soft); border-color: var(--close); color: var(--close); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { font: 500 0.88rem var(--sans); border: 1.5px solid var(--line); border-radius: 999px; background: var(--field);
  color: var(--muted); padding: 6px 14px; cursor: pointer; }
.chip[aria-pressed="true"] { border-color: var(--accent); color: var(--accent); background: var(--surface); font-weight: 600; }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.seg button { font: 500 0.8rem var(--sans); border: 0; background: transparent; color: var(--muted); padding: 5px 11px; cursor: pointer; }
.seg button + button { border-left: 1px solid var(--line); }
.seg button[aria-pressed="true"] { background: var(--accent); color: var(--accent-ink); }
.exit-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; margin-bottom: 6px; }
.exit-head .label { margin: 0; }
.calc { font: 400 0.8rem var(--mono); color: var(--muted); min-height: 1.2em; margin-top: 4px; }

.plans { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.plan { border: 1.5px solid var(--line); border-radius: 12px; padding: 14px; display: grid; gap: 2px; cursor: pointer; background: var(--field); }
.plan:has(input:checked) { border-color: var(--accent); background: var(--surface); }
.plan input { position: absolute; opacity: 0; pointer-events: none; }
.plan .price { font: 700 1.25rem var(--sans); font-variant-numeric: tabular-nums; }
.plan .per { color: var(--muted); font-size: 0.82rem; }

.toast { position: fixed; left: 50%; bottom: calc(24px + env(safe-area-inset-bottom, 0px)); transform: translateX(-50%);
  background: var(--ink); color: var(--surface); padding: 8px 16px; border-radius: 999px; font-size: 0.88rem; }