:root {
  --bg: #f3f4f6;
  --card: #ffffff;
  --line: #d9dce2;
  --text: #0f172a;
  --muted: #475569;
  --brand: #0f766e;
  --brand-2: #115e59;
  --danger: #b91c1c;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Source Sans 3", "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: var(--text);
  background: linear-gradient(140deg, #f8fafc, #eef7f7 35%, #f4f4f7);
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  padding: 24px;
  border-bottom: 1px solid var(--line);
  background: #ffffffcc;
  backdrop-filter: blur(6px);
  position: sticky;
  top: 0;
  z-index: 2;
}

.topbar h1 {
  margin: 0;
  font-size: 24px;
}

.muted {
  margin: 4px 0 0;
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 16px;
  padding: 20px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px;
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.04);
}

.card h2,
.card h3 {
  margin: 0 0 10px;
}

.stack {
  display: grid;
  gap: 10px;
}

.row {
  display: flex;
  gap: 8px;
  align-items: center;
}

.wrap {
  flex-wrap: wrap;
}

label {
  display: grid;
  gap: 4px;
  font-size: 14px;
  color: var(--muted);
}

input,
select,
button,
textarea {
  font: inherit;
}

input,
select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 9px 10px;
  background: #fff;
  color: var(--text);
}

.btn {
  border: none;
  border-radius: 9px;
  padding: 9px 11px;
  background: var(--brand);
  color: #fff;
  cursor: pointer;
  white-space: nowrap;
}

.btn:hover {
  background: var(--brand-2);
}

.btn-secondary {
  background: #334155;
}

.btn-secondary:hover {
  background: #1e293b;
}

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

.btn-danger:hover {
  background: #991b1b;
}

.auth-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.list {
  display: grid;
  gap: 8px;
  margin-top: 10px;
}

.item {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px;
  background: #f8fafc;
}

.item h4 {
  margin: 0 0 6px;
}

.badges {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin: 6px 0;
}

.badge {
  font-size: 12px;
  padding: 2px 7px;
  border-radius: 999px;
  border: 1px solid #cbd5e1;
  color: #0f172a;
  background: #f1f5f9;
}

.info {
  margin-top: 10px;
  white-space: pre-wrap;
  font-size: 13px;
  color: var(--muted);
}

.tabs {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  margin-bottom: 8px;
}

.tab {
  padding: 7px 10px;
  border-radius: 20px;
  border: 1px solid var(--line);
  background: #fff;
  color: #0f172a;
  cursor: pointer;
}

.tab.active {
  background: #0f172a;
  color: #fff;
}

.code {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #0b1220;
  color: #dbeafe;
  padding: 10px;
  font-size: 12px;
  min-height: 80px;
  overflow-x: auto;
}

.hidden {
  display: none;
}

.footer {
  padding: 0 20px 24px;
  color: var(--muted);
}

@media (max-width: 720px) {
  .topbar {
    position: static;
    flex-direction: column;
  }

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

  .row {
    flex-wrap: wrap;
  }
}