:root {
  --bg: #0b1220;
  --card: #111a2e;
  --text: #e6e9ef;
  --muted: #9aa4b2;
  --border: rgba(255, 255, 255, 0.08);
  --primary: #4f8cff;
  --danger: #ff4d4d;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans", "Apple Color Emoji",
    "Segoe UI Emoji";
}

.app {
  min-height: 100vh;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: rgba(11, 18, 32, 0.85);
  backdrop-filter: blur(10px);
}

.brand {
  font-weight: 700;
  letter-spacing: 0.2px;
}

.main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 18px;
}

.stack {
  display: grid;
  gap: 14px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px;
}

h2 {
  margin: 0 0 10px;
  font-size: 18px;
}

label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 6px;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.25);
  color: var(--text);
  padding: 10px 12px;
  outline: none;
}

input:focus,
textarea:focus {
  border-color: rgba(79, 140, 255, 0.7);
}

.textarea {
  min-height: 220px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 13px;
}

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

.row {
  display: flex;
  gap: 10px;
  margin-top: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.row-between {
  justify-content: space-between;
}

.btn {
  border: 1px solid rgba(79, 140, 255, 0.6);
  background: rgba(79, 140, 255, 0.22);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 12px;
  cursor: pointer;
}

.btn:hover {
  background: rgba(79, 140, 255, 0.3);
}

.btn-ghost {
  border: 1px solid var(--border);
  background: transparent;
}

.btn-danger {
  border: 1px solid rgba(255, 77, 77, 0.6);
  background: rgba(255, 77, 77, 0.15);
}

.btn-danger:hover {
  background: rgba(255, 77, 77, 0.22);
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.muted {
  color: var(--muted);
  font-size: 12px;
}

.hidden {
  display: none;
}

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

.item {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 12px;
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
}

.item .title {
  font-weight: 600;
}

.item .sub {
  color: var(--muted);
  font-size: 12px;
  margin-top: 2px;
}

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

.pill {
  border: 1px solid var(--border);
  padding: 3px 8px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 12px;
}

.note {
  margin-top: 10px;
  color: var(--muted);
  font-size: 12px;
  white-space: pre-wrap;
}

.error {
  margin-top: 10px;
  color: #ff8a8a;
  font-size: 13px;
  white-space: pre-wrap;
}