:root {
  --bg: #f4f7fb;
  --panel: #ffffff;
  --text: #172033;
  --muted: #627086;
  --border: #d9e0ea;
  --primary: #0f766e;
  --primary-dark: #115e59;
  --danger: #b42318;
  --code-bg: #fff4cc;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.5;
}

button,
.button {
  border: 0;
  border-radius: 6px;
  background: var(--primary);
  color: #fff;
  padding: 10px 14px;
  cursor: pointer;
  text-decoration: none;
  font-size: 14px;
  white-space: nowrap;
}

button:hover,
.button:hover {
  background: var(--primary-dark);
}

button.secondary,
.button.secondary {
  background: #e8eef5;
  color: var(--text);
}

button.danger {
  background: var(--danger);
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
  font: inherit;
  background: #fff;
}

textarea {
  resize: vertical;
}

h1,
h2,
h3 {
  margin-top: 0;
}

.page {
  min-height: 100vh;
  padding: 32px 16px;
}

.user-page {
  display: flex;
  align-items: flex-start;
  justify-content: center;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
  box-shadow: 0 8px 24px rgba(19, 33, 68, 0.06);
}

.user-card,
.login-card {
  width: min(760px, 100%);
  margin-top: 40px;
}

.query-row,
.inline-form {
  display: flex;
  gap: 10px;
}

.query-row input {
  flex: 1;
}

.status-text,
.muted,
.meta {
  color: var(--muted);
}

.alert.error {
  color: var(--danger);
}

.email-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px;
  margin: 16px 0;
  background: #f9fbfd;
}

.email-alias {
  font-size: 20px;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.message-list {
  display: grid;
  gap: 14px;
}

.message-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
}

.message-card h3 {
  margin-bottom: 8px;
}

.codes {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0;
}

.code-badge {
  background: var(--code-bg);
  color: #4f3b00;
  border: 1px solid #e7c64f;
  font-weight: 700;
}

.message-text {
  max-height: 320px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
  background: #f7f9fc;
  border-radius: 6px;
  padding: 12px;
  font-family: Consolas, "Courier New", monospace;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: #fff;
  border-bottom: 1px solid var(--border);
}

.admin-layout {
  max-width: 1180px;
  margin: 0 auto;
  padding: 24px 16px 48px;
  display: grid;
  gap: 18px;
}

.form-stack {
  display: grid;
  gap: 12px;
}

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

.toolbar-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.toolbar-actions input {
  width: 240px;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 900px;
}

th,
td {
  border-bottom: 1px solid var(--border);
  padding: 10px;
  text-align: left;
  vertical-align: top;
}

th {
  background: #f7f9fc;
}

.op-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

@media (max-width: 640px) {
  .query-row,
  .inline-form,
  .email-box {
    flex-direction: column;
    align-items: stretch;
  }

  .panel {
    padding: 18px;
  }
}