:root {
  color-scheme: light;
  --bg: #f6f7f9;
  --panel: #ffffff;
  --text: #17202a;
  --muted: #667085;
  --line: #d7dce2;
  --accent: #176b5b;
  --danger: #b42318;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 14px;
}

.shell {
  width: min(1180px, calc(100vw - 32px));
  margin: 24px auto;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}

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

h1 {
  margin-bottom: 4px;
  font-size: 28px;
}

h2 {
  margin-bottom: 12px;
  font-size: 18px;
}

section,
.panel {
  margin-bottom: 24px;
}

.panel {
  padding: 20px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.narrow {
  max-width: 420px;
  margin: 80px auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--panel);
  border: 1px solid var(--line);
}

th,
td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--muted);
  font-weight: 600;
}

input,
textarea {
  width: 100%;
  padding: 9px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  font: inherit;
}

textarea {
  min-height: 58px;
  resize: vertical;
}

button {
  padding: 9px 14px;
  border: 0;
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  font: inherit;
  cursor: pointer;
}

button.secondary {
  background: #344054;
}

button.compact {
  padding: 7px 12px;
}

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

.inline-form {
  grid-template-columns: 1fr 180px 180px auto;
  margin-bottom: 12px;
}

.split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.badge {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 999px;
  background: #e7f4ef;
  color: var(--accent);
}

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

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

.success {
  color: var(--accent);
}

.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.section-heading h2 {
  margin-bottom: 0;
}

.meta {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 8px 12px;
}

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

.meta dd {
  margin: 0;
}

.dialog-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.dialog-card {
  min-width: 0;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.dialog-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  padding: 12px;
  border-bottom: 1px solid var(--line);
}

.dialog-card h3 {
  margin: 0 0 4px;
  font-size: 15px;
}

.dialog-error {
  margin: 10px 12px 0;
}

.message-list {
  height: 360px;
  overflow-y: auto;
  padding: 10px 12px;
  background: #fbfcfd;
}

.dialog-message {
  margin-bottom: 10px;
  padding: 8px 9px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.dialog-message.outgoing {
  border-color: #b8dcca;
  background: #effaf4;
}

.message-meta {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 12px;
}

.message-text {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  line-height: 1.35;
}

.empty-state {
  padding: 12px 0;
}

.dialog-actions {
  padding: 10px 12px;
  border-top: 1px solid var(--line);
}

.send-message-form {
  display: grid;
  gap: 8px;
  margin-bottom: 10px;
}

.send-status {
  min-height: 18px;
  font-size: 12px;
}

.search-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  margin-bottom: 8px;
}

.search-status {
  min-height: 18px;
  margin-bottom: 10px;
}

.search-results {
  display: grid;
  gap: 10px;
}

.search-result {
  padding: 10px 12px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.search-result-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 6px;
}

.search-result-header span {
  color: var(--muted);
  font-size: 12px;
  text-align: right;
}

@media (max-width: 760px) {
  .topbar,
  .split {
    grid-template-columns: 1fr;
    display: grid;
  }

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

  .section-heading,
  .search-result-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .search-result-header span {
    text-align: left;
  }

  .dialog-grid {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 761px) and (max-width: 1080px) {
  .dialog-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}