:root {
  color-scheme: light dark;

  --bg: #f6f7f9;
  --surface: #ffffff;
  --border: #dfe3e8;
  --text: #1c2024;
  --text-muted: #666e78;
  --accent: #1f5fa9;
  --accent-text: #ffffff;
  --error-bg: #fdeceb;
  --error-text: #a3261c;
  --info-bg: #eaf3fb;
  --info-text: #1a4d80;
  --bot-bg: #f0f2f5;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16181c;
    --surface: #1e2126;
    --border: #343941;
    --text: #e6e8eb;
    --text-muted: #9aa2ad;
    --accent: #5b9bd9;
    --accent-text: #10131a;
    --error-bg: #3a1f1d;
    --error-text: #f0a9a2;
    --info-bg: #1b2c3d;
    --info-text: #9dc5e8;
    --bot-bg: #262a31;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 -apple-system, "Segoe UI", "Malgun Gothic", system-ui, sans-serif;
}

body.centered {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px 16px;
}

/* ── 카드 (로그인·비밀번호 변경) ───────────────────── */

.card {
  width: 100%;
  max-width: 400px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px 28px;
}

.card h1 { margin: 0 0 4px; font-size: 22px; }
.sub { margin: 0 0 24px; color: var(--text-muted); font-size: 14px; }
.hint { margin: 20px 0 0; color: var(--text-muted); font-size: 13px; }

.formgroup {
  margin: 20px 0 4px;
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  border-top: 1px solid var(--border);
  padding-top: 14px;
}
.formgroup:first-of-type { border-top: 0; padding-top: 0; margin-top: 8px; }

label {
  display: block;
  margin: 16px 0 6px;
  font-size: 13px;
  font-weight: 600;
}

input[type="text"], input[type="password"], input:not([type]), textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
}

input:focus, textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

button {
  margin-top: 24px;
  width: 100%;
  padding: 11px;
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-text);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

button:hover { filter: brightness(1.08); }
button:disabled { opacity: .55; cursor: default; }

.notice {
  margin: 0 0 16px;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 14px;
}
.notice--error { background: var(--error-bg); color: var(--error-text); }
.notice--info  { background: var(--info-bg);  color: var(--info-text); }

/* ── 상단 바 ───────────────────────────────────── */

.topbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

.topbar__title { font-weight: 700; }
.topbar__spacer { flex: 1; }
.topbar__user { color: var(--text-muted); }
.topbar__link { color: var(--accent); text-decoration: none; }
.topbar__logout { margin: 0; }

.linklike {
  margin: 0;
  padding: 0;
  width: auto;
  background: none;
  border: 0;
  color: var(--accent);
  font: inherit;
  cursor: pointer;
  text-decoration: underline;
}

/* ── 채팅 ──────────────────────────────────────── */

.chat {
  display: flex;
  flex-direction: column;
  max-width: 780px;
  margin: 0 auto;
  padding: 20px 16px 12px;
  min-height: calc(100vh - 49px);
}

.messages { flex: 1; }

.msg { margin-bottom: 20px; }

.msg__body {
  padding: 14px 16px;
  border-radius: 12px;
  background: var(--bot-bg);
  overflow-wrap: anywhere;
}

.msg--user .msg__body {
  background: var(--accent);
  color: var(--accent-text);
  margin-left: auto;
  max-width: 80%;
  width: fit-content;
}

.msg__body > :first-child { margin-top: 0; }
.msg__body > :last-child { margin-bottom: 0; }
.msg__body h2 { font-size: 16px; margin: 18px 0 8px; }
.msg__body ul, .msg__body ol { padding-left: 20px; }

.msg__caution {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 13px;
}

.msg__sources {
  margin-top: 12px;
  border-top: 1px solid var(--border);
  padding-top: 10px;
  font-size: 13px;
}

.msg__sources summary { cursor: pointer; color: var(--text-muted); }
.msg__sources li { margin: 6px 0; color: var(--text-muted); }
.msg__sources b { color: var(--text); }

.msg__actions {
  margin-top: 10px;
  text-align: right;
}

.msg__flag {
  font-size: 12px;
  color: var(--text-muted);
  text-decoration: none;
}
.msg__flag:hover { text-decoration: underline; }

.msg--pending .msg__body { color: var(--text-muted); font-style: italic; }
.msg--failed .msg__body { background: var(--error-bg); color: var(--error-text); }

/* ── 입력창 ────────────────────────────────────── */

.composer {
  position: sticky;
  bottom: 0;
  display: flex;
  gap: 8px;
  align-items: flex-end;
  padding: 12px 0;
  background: var(--bg);
}

.composer textarea {
  flex: 1;
  resize: none;
  max-height: 180px;
}

.composer button {
  margin: 0;
  width: auto;
  padding: 11px 20px;
  flex-shrink: 0;
}

.disclaimer {
  margin: 0 0 12px;
  color: var(--text-muted);
  font-size: 12px;
  text-align: center;
}

/* ── 관리자 ────────────────────────────────────── */

.admin {
  max-width: 900px;
  margin: 0 auto;
  padding: 20px 16px 40px;
}

.confidential {
  margin: 0 0 20px;
  padding: 10px 14px;
  border-left: 3px solid var(--accent);
  background: var(--info-bg);
  color: var(--info-text);
  font-size: 13px;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 22px;
  margin-bottom: 18px;
}

.panel h2 {
  margin: 0 0 12px;
  font-size: 17px;
}

.panel .count {
  display: inline-block;
  min-width: 22px;
  padding: 0 7px;
  border-radius: 11px;
  background: var(--accent);
  color: var(--accent-text);
  font-size: 12px;
  text-align: center;
  vertical-align: middle;
}

.muted { color: var(--text-muted); font-size: 14px; }

.stats { display: flex; gap: 14px; flex-wrap: wrap; }

.stat {
  flex: 1;
  min-width: 120px;
  padding: 14px 16px;
  border-radius: 10px;
  background: var(--bot-bg);
}
.stat--alert { background: var(--error-bg); }
.stat--alert .stat__num { color: var(--error-text); }
.stat__num { display: block; font-size: 28px; font-weight: 700; line-height: 1.2; }
.stat__label { color: var(--text-muted); font-size: 13px; }

.panel form label { margin-top: 12px; }
.panel button.small {
  margin-top: 10px;
  width: auto;
  padding: 8px 18px;
  font-size: 14px;
}
.panel form.inline { margin-top: 12px; }

.credential-box {
  margin-bottom: 16px;
  padding: 14px 16px;
  border: 1px solid var(--accent);
  border-radius: 10px;
  background: var(--info-bg);
  color: var(--info-text);
}
.credential-box p { margin: 4px 0; }
.credential-box code {
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--surface);
  font-size: 15px;
  user-select: all;
}

.account-results { list-style: none; margin: 14px 0 0; padding: 0; }
.account-results li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.account-results li:last-child { border-bottom: none; }
.account-results form.inline { margin-top: 0; }

.tablewrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 14px; }
th, td { padding: 8px 10px; border-bottom: 1px solid var(--border); text-align: left; }
th { color: var(--text-muted); font-weight: 600; }
td.num { text-align: right; font-variant-numeric: tabular-nums; }

.entry {
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 8px;
  font-size: 14px;
}
.entry--flagged { border-color: var(--error-text); }
.entry summary {
  padding: 10px 12px;
  cursor: pointer;
  display: flex;
  gap: 10px;
  align-items: baseline;
  flex-wrap: wrap;
}
.entry__body { padding: 0 14px 14px; }
.entry__body pre {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  background: var(--bot-bg);
  padding: 10px 12px;
  border-radius: 8px;
  font: 13px/1.6 inherit;
  margin: 4px 0 12px;
}
.entry__reason { color: var(--error-text); }

.tag {
  padding: 2px 8px;
  border-radius: 10px;
  background: var(--bot-bg);
  font-size: 12px;
  white-space: nowrap;
}

code { font-size: 13px; }

@media (max-width: 520px) {
  .card { padding: 24px 20px; }
  .topbar { gap: 10px; padding: 10px 14px; font-size: 13px; }
  .topbar__user { display: none; }
}