* {
  box-sizing: border-box;
}
body {
  margin: 0;
  font-family:
    ui-sans-serif,
    system-ui,
    -apple-system,
    Segoe UI,
    Roboto,
    Arial;
  background: #0b1220;
  color: #e7eefc;
}
a {
  color: inherit;
  text-decoration: none;
}
code {
  background: rgba(255, 255, 255, 0.08);
  padding: 2px 6px;
  border-radius: 6px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
}
.brand {
  font-weight: 750;
}
.nav {
  display: flex;
  gap: 12px;
  align-items: center;
}
.linkbtn {
  background: transparent;
  color: inherit;
  border: 0;
  cursor: pointer;
  opacity: 0.9;
}
.linkbtn:hover {
  opacity: 1;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 18px;
}
h1 {
  margin: 0 0 12px;
}
h2 {
  margin: 0 0 10px;
}
.muted {
  opacity: 0.75;
}
.error {
  background: rgba(255, 0, 0, 0.15);
  border: 1px solid rgba(255, 0, 0, 0.35);
  padding: 10px;
  border-radius: 12px;
  margin-bottom: 12px;
}

.card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 14px;
  padding: 14px;
  margin-bottom: 14px;
}
.grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 14px;
}

.form {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: 520px;
}
input,
select {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: inherit;
  padding: 10px;
  border-radius: 12px;
}
button {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: inherit;
  padding: 10px 12px;
  border-radius: 12px;
  cursor: pointer;
}
button:hover {
  border-color: rgba(255, 255, 255, 0.3);
}
.danger {
  background: rgba(255, 0, 0, 0.18);
  border-color: rgba(255, 0, 0, 0.35);
}

.table {
  width: 100%;
  border-collapse: collapse;
}
.table th,
.table td {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 10px;
  text-align: left;
}
.btn {
  background: rgba(255, 255, 255, 0.1);
  padding: 8px 10px;
  border-radius: 10px;
  display: inline-block;
}
.inline {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  margin: 0 6px 0 0;
}

#list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.msg {
  width: 100%;
  text-align: left;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  padding: 10px;
  cursor: pointer;
}
.msg:hover {
  border-color: rgba(255, 255, 255, 0.25);
}
.msgTop {
  display: flex;
  justify-content: space-between;
  gap: 10px;
}
.subj {
  font-weight: 700;
}
.time {
  opacity: 0.75;
  font-size: 12px;
  white-space: nowrap;
}
.msgBottom {
  margin-top: 6px;
  opacity: 0.85;
  font-size: 13px;
}

.kv {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 10px;
}
.tabs {
  display: flex;
  gap: 8px;
  margin: 10px 0;
  flex-wrap: wrap;
}
.pre {
  white-space: pre-wrap;
  word-break: break-word;
  background: rgba(0, 0, 0, 0.35);
  padding: 10px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}
.iframe {
  width: 100%;
  height: 520px;
  border: 0;
  border-radius: 12px;
  background: #fff;
}