:root {
  color-scheme: light;
  --bg: #f6f7f9;
  --surface: #ffffff;
  --line: #d9dee7;
  --text: #1f2937;
  --muted: #687386;
  --primary: #0f766e;
  --primary-dark: #115e59;
  --danger: #b42318;
  --warning: #b54708;
  --success: #067647;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 14px;
}

a {
  color: inherit;
  text-decoration: none;
}

.topbar {
  height: 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  background: #ffffff;
  border-bottom: 1px solid var(--line);
}

.brand {
  font-weight: 700;
  letter-spacing: 0;
}

.topbar nav {
  display: flex;
  gap: 18px;
  color: var(--muted);
}

.page {
  max-width: 1240px;
  margin: 0 auto;
  padding: 28px;
}

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 18px;
}

.toolbar.compact {
  margin-top: 28px;
}

h1,
h2 {
  margin: 0 0 6px;
  letter-spacing: 0;
}

h1 {
  font-size: 26px;
}

h2 {
  font-size: 19px;
}

.muted {
  color: var(--muted);
}

.block {
  display: block;
  margin-top: 4px;
}

.small {
  font-size: 13px;
  color: #465365;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #ffffff;
  color: var(--text);
  font-weight: 600;
  cursor: pointer;
}

.btn.primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #ffffff;
}

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

.btn.ghost {
  background: transparent;
}

.button-row,
.actions {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.table-wrap,
.panel-section {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.panel-section {
  padding: 18px;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  padding: 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: middle;
}

th {
  background: #eef2f6;
  color: #334155;
  font-size: 12px;
  text-transform: uppercase;
}

tr:last-child td {
  border-bottom: 0;
}

.empty {
  text-align: center;
  padding: 36px;
  color: var(--muted);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
}

.form-grid.wide {
  border: 0;
  padding: 0;
}

.span-2 {
  grid-column: span 2;
}

label {
  display: grid;
  gap: 7px;
  color: #334155;
  font-weight: 700;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px 11px;
  font: inherit;
  color: var(--text);
  background: #ffffff;
}

textarea {
  min-height: 180px;
  font-family: Consolas, Monaco, monospace;
  font-size: 13px;
}

.form-actions {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-top: 14px;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

.metrics div {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 15px;
}

.metrics strong {
  display: block;
  font-size: 24px;
}

.metrics span {
  color: var(--muted);
}

.thumb {
  width: 58px;
  height: 58px;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: 6px;
}

.no-image {
  display: inline-flex;
  width: 58px;
  height: 58px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--muted);
}

.status {
  display: inline-flex;
  min-width: 74px;
  justify-content: center;
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  background: #eef2f6;
  color: #334155;
}

.status.sent,
.status.success {
  background: #dcfae6;
  color: var(--success);
}

.status.pending {
  background: #fff6dc;
  color: var(--warning);
}

.status.error {
  background: #fee4e2;
  color: var(--danger);
}

.alert {
  padding: 12px 14px;
  margin-bottom: 14px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #ffffff;
}

.alert.success {
  border-color: #abefc6;
  color: var(--success);
}

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

.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.login-box {
  width: min(420px, 100%);
  display: grid;
  gap: 14px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
}

@media (max-width: 820px) {
  .page {
    padding: 18px;
  }

  .toolbar,
  .topbar {
    align-items: flex-start;
    flex-direction: column;
    height: auto;
  }

  .topbar {
    padding: 16px 18px;
  }

  .form-grid,
  .metrics {
    grid-template-columns: 1fr;
  }

  .span-2 {
    grid-column: span 1;
  }

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