:root {
  --bg: #0b1020;
  --card: rgba(255, 255, 255, 0.06);
  --card-border: rgba(255, 255, 255, 0.10);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.70);
  --muted2: rgba(255, 255, 255, 0.55);
  --primary: #7c5cff;
  --primary-2: #4de1c1;
  --danger: #ff5c7a;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
  --radius: 16px;
  --radius-sm: 12px;
  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: radial-gradient(1200px 700px at 20% 15%, rgba(124, 92, 255, 0.35), transparent 55%),
    radial-gradient(900px 600px at 85% 30%, rgba(77, 225, 193, 0.28), transparent 60%),
    radial-gradient(800px 600px at 30% 90%, rgba(255, 92, 122, 0.18), transparent 55%),
    var(--bg);
}

code {
  color: rgba(255, 255, 255, 0.88);
}

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 28px 16px 36px;
  display: grid;
  gap: 14px;
}

.header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 4px;
}

h1 {
  margin: 0 0 6px 0;
  font-size: 22px;
  letter-spacing: 0.2px;
}

h2 {
  margin: 0;
  font-size: 16px;
  letter-spacing: 0.2px;
}

.subtle {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

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

.card {
  border: 1px solid var(--card-border);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.04));
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 14px;
  overflow: hidden;
}

.card-title {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 2px 2px 10px;
}

.hint {
  color: var(--muted2);
  font-size: 12px;
}

.list {
  list-style: decimal;
  margin: 0;
  padding: 0 0 0 22px;
  display: grid;
  gap: 10px;
}

.item {
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-sm);
  padding: 10px 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  user-select: none;
}

.item[draggable="true"] {
  cursor: grab;
}

.item:active {
  cursor: grabbing;
}

.item.dragging {
  opacity: 0.55;
  outline: 2px dashed rgba(124, 92, 255, 0.65);
  outline-offset: 2px;
}

.item-name {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.pill {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.85);
  background: rgba(124, 92, 255, 0.18);
  border: 1px solid rgba(124, 92, 255, 0.22);
  padding: 2px 8px;
  border-radius: 999px;
}

.name-text {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.93);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.item-controls {
  display: flex;
  gap: 6px;
  flex: 0 0 auto;
}

.btn {
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  padding: 8px 10px;
  border-radius: 12px;
  font-size: 13px;
  cursor: pointer;
  transition: transform 120ms ease, background 120ms ease, border-color 120ms ease;
}

.btn:hover {
  background: rgba(255, 255, 255, 0.10);
  border-color: rgba(255, 255, 255, 0.20);
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn:focus-visible,
input:focus-visible {
  outline: 2px solid rgba(124, 92, 255, 0.7);
  outline-offset: 2px;
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.03);
}

.btn-primary {
  background: linear-gradient(90deg, rgba(124, 92, 255, 0.90), rgba(77, 225, 193, 0.75));
  border-color: rgba(124, 92, 255, 0.35);
}

.btn[disabled] {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none !important;
}

.btn-danger {
  border-color: rgba(255, 92, 122, 0.35);
  background: rgba(255, 92, 122, 0.10);
}

.btn-mini {
  padding: 7px 8px;
  font-size: 12px;
}

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 12px;
  flex-wrap: wrap;
}

.add-form {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

input[type="text"] {
  width: min(420px, 72vw);
  padding: 9px 10px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  font-size: 13px;
}

.save-state {
  font-size: 12px;
  color: var(--muted2);
}

.result {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: start;
}

.result-text {
  margin: 0;
  padding: 12px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(0, 0, 0, 0.18);
  min-height: 86px;
  overflow: auto;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.90);
}

.footer {
  padding: 4px 4px 0;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 520px) {
  .header {
    flex-direction: column;
    align-items: stretch;
  }

  .actions {
    justify-content: flex-start;
  }

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