:root {
  --ink: #15233a;
  --ink-soft: #44566f;
  --paper: #f6f8fb;
  --card: #ffffff;
  --line: #d9e2ee;
  --line-soft: #e9eff7;
  --accent: #2455c3;
  --accent-deep: #173c94;
  --accent-wash: #e8eefc;
  --good: #1f7a4d;
  --good-wash: #e4f3ea;
  --warn: #9a5a06;
  --warn-wash: #fbf0da;
  --bad: #a83232;
  --bad-wash: #fbe8e6;
  --shadow: 0 1px 2px rgba(21, 35, 58, .04), 0 12px 32px rgba(21, 35, 58, .06);
  --radius: 14px;
  --sans: "Segoe UI Variable Text", "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --serif: "Noto Serif SC", "Songti SC", "SimSun", Georgia, serif;
  --mono: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
}

* { box-sizing: border-box; }

html { color-scheme: light; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.6;
  background:
    radial-gradient(900px 420px at 85% -10%, rgba(36, 85, 195, .10), transparent 65%),
    radial-gradient(700px 380px at -10% 100%, rgba(31, 122, 77, .07), transparent 60%),
    var(--paper);
}

.shell {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
  padding: 40px 0 32px;
}

.masthead {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.brand { display: flex; align-items: center; gap: 16px; }

.mark {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: var(--ink);
  color: #f3f6fc;
  font-family: var(--serif);
  font-size: 26px;
  line-height: 1;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .12);
}

h1, h2 { font-family: var(--serif); font-weight: 600; letter-spacing: .01em; margin: 0; }
h1 { font-size: 27px; }
h2 { font-size: 21px; }

.eyebrow {
  margin: 0 0 4px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.masthead-note { margin: 0; color: var(--ink-soft); font-size: 13px; }

main { padding-top: 30px; }

.login-card {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 48px;
  align-items: center;
  max-width: 880px;
  margin: 6vh auto 0;
  padding: 46px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 4px);
  box-shadow: var(--shadow);
}

.login-copy h2 { font-size: 30px; margin-bottom: 10px; }
.login-copy p { margin: 0 0 8px; color: var(--ink-soft); max-width: 38ch; }

.login-form { display: grid; gap: 10px; }
.login-form label { font-size: 13px; font-weight: 600; color: var(--ink-soft); }

input, select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #fdfefe;
  color: var(--ink);
  font: inherit;
  transition: border-color .15s ease, box-shadow .15s ease;
}

input:focus-visible, select:focus-visible, button:focus-visible {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(36, 85, 195, .18);
}

#totp {
  font-family: var(--mono);
  font-size: 30px;
  letter-spacing: .5em;
  text-align: center;
  padding: 14px 12px 14px 24px;
}

button { font: inherit; cursor: pointer; border: 0; border-radius: 9px; }

.primary {
  padding: 11px 18px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  transition: background .15s ease, transform .05s ease;
}
.primary:hover { background: var(--accent-deep); }
.primary:active { transform: translateY(1px); }

.ghost {
  padding: 9px 14px;
  background: transparent;
  color: var(--ink-soft);
  border: 1px solid var(--line);
}
.ghost:hover { border-color: var(--ink-soft); color: var(--ink); }

.danger { color: var(--bad); border-color: #e9c4c0; }
.danger:hover { border-color: var(--bad); }

.error {
  margin: 4px 0 0;
  padding: 9px 12px;
  border-radius: 8px;
  background: var(--bad-wash);
  color: var(--bad);
  font-size: 13px;
}

.toolbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; }

.tabs { display: flex; gap: 4px; padding: 4px; background: var(--accent-wash); border-radius: 11px; }

.tab {
  padding: 8px 16px;
  background: transparent;
  color: var(--ink-soft);
  font-weight: 600;
  font-size: 14px;
}
.tab.is-active { background: var(--card); color: var(--ink); box-shadow: 0 1px 3px rgba(21, 35, 58, .10); }

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin: 22px 0;
}

.stat {
  padding: 16px 18px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.stat span { display: block; color: var(--ink-soft); font-size: 13px; }
.stat strong { display: block; margin-top: 2px; font-family: var(--serif); font-size: 28px; font-weight: 600; }

.panel {
  padding: 24px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 18px;
}
.panel-head p { margin: 4px 0 0; color: var(--ink-soft); font-size: 13.5px; }
.panel-head input { width: min(260px, 40vw); }

.inline-form {
  display: flex;
  align-items: flex-end;
  gap: 12px;
  flex-wrap: wrap;
  padding: 16px;
  margin-bottom: 18px;
  background: #f9fbfe;
  border: 1px dashed var(--line);
  border-radius: 11px;
}
.field { display: grid; gap: 4px; min-width: 110px; }
.field.grow { flex: 1; min-width: 180px; }
.field label { font-size: 12px; font-weight: 600; color: var(--ink-soft); }

.secret-box {
  padding: 16px 18px;
  margin-bottom: 18px;
  background: var(--good-wash);
  border: 1px solid #c4e4d2;
  border-radius: 11px;
}
.secret-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.secret-row code {
  flex: 1;
  min-width: 260px;
  padding: 8px 10px;
  background: #fff;
  border: 1px solid #c4e4d2;
  border-radius: 8px;
  font-family: var(--mono);
  font-size: 16px;
  letter-spacing: .08em;
  word-break: break-all;
}
.hint { margin: 8px 0 0; color: var(--ink-soft); font-size: 12.5px; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
th {
  padding: 9px 10px;
  text-align: left;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
td { padding: 11px 10px; border-bottom: 1px solid var(--line-soft); vertical-align: middle; }
tbody tr:last-child td { border-bottom: 0; }
td.actions { text-align: right; white-space: nowrap; }
td.actions button { padding: 5px 9px; font-size: 12.5px; margin-left: 4px; }
.mono { font-family: var(--mono); }
.empty { padding: 26px 10px; text-align: center; color: var(--ink-soft); }

.pill {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}
.pill.open, .pill.active { background: var(--good-wash); color: var(--good); }
.pill.used { background: var(--accent-wash); color: var(--accent-deep); }
.pill.expired, .pill.disabled { background: var(--bad-wash); color: var(--bad); }
.pill.revoked { background: var(--warn-wash); color: var(--warn); }

.foot {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 34px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 12.5px;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 26px;
  transform: translateX(-50%);
  padding: 10px 18px;
  background: var(--ink);
  color: #f4f7fc;
  border-radius: 999px;
  font-size: 13.5px;
  box-shadow: var(--shadow);
}

@media (max-width: 760px) {
  .shell { width: calc(100% - 28px); padding-top: 22px; }
  .masthead { flex-direction: column; align-items: flex-start; gap: 10px; }
  .login-card { grid-template-columns: 1fr; gap: 26px; padding: 26px; margin-top: 18px; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .toolbar { flex-direction: column; align-items: stretch; }
  .tabs { justify-content: space-between; }
  .tab { flex: 1; }
  .panel { padding: 16px; }
  .panel-head { flex-direction: column; }
  .panel-head input { width: 100%; }
  .foot { flex-direction: column; }
}