:root {
  --pp-bg-0: #f6f1e8;
  --pp-bg-1: #ece3d5;
  --pp-ink: #4d4035;
  --pp-muted: #7b6c5f;
  --pp-card: rgba(255, 251, 244, 0.9);
  --pp-card-border: rgba(141, 122, 102, 0.24);
  --pp-accent: #9b7b5f;
  --pp-accent-strong: #7f5e42;
  --pp-good: #4e8b58;
  --pp-bad: #c2473b;
}

body[data-page="palette-hub"] {
  margin: 0;
  min-height: 100vh;
  color: var(--pp-ink);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(1000px 420px at 12% -10%, rgba(187, 166, 145, 0.36), transparent 66%),
    radial-gradient(900px 320px at 90% -18%, rgba(188, 172, 152, 0.22), transparent 70%),
    linear-gradient(160deg, var(--pp-bg-0), var(--pp-bg-1));
}

.palette-page-shell {
  width: min(1220px, calc(100vw - 32px));
  margin: 18px auto 28px;
}

.palette-page-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}

.palette-kicker {
  margin: 0 0 4px;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--pp-muted);
}

.palette-title {
  margin: 0;
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1;
  letter-spacing: 0.03em;
}

.palette-subtitle {
  margin: 8px 0 0;
  color: var(--pp-muted);
  font-size: 14px;
}

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

.palette-nav-btn {
  min-height: 36px;
  line-height: 36px;
  padding: 0 14px;
}

.palette-grid {
  display: grid;
  grid-template-columns: minmax(260px, 320px) minmax(0, 1fr);
  gap: 14px;
}

.card-surface {
  border-radius: 14px;
  border: 1px solid var(--pp-card-border);
  background: var(--pp-card);
  box-shadow: 0 10px 24px rgba(79, 60, 39, 0.08);
  backdrop-filter: blur(3px);
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 12px;
}

.panel-head h2 {
  margin: 0;
  font-size: 22px;
  line-height: 1.2;
}

.panel-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 30px;
  height: 24px;
  padding: 0 8px;
  border-radius: 999px;
  background: rgba(138, 117, 96, 0.2);
  color: #5f4d3e;
  font-size: 12px;
  font-weight: 700;
}

.palette-sidebar {
  padding: 14px;
}

.palette-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: calc(100vh - 210px);
  overflow: auto;
  padding-right: 2px;
}

.palette-item {
  width: 100%;
  text-align: left;
  border: 1px solid rgba(156, 137, 117, 0.28);
  background: linear-gradient(180deg, #fffaf2, #f6eee3);
  color: var(--pp-ink);
  border-radius: 10px;
  padding: 9px 10px;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease, border-color 0.12s ease;
}

.palette-item:hover {
  transform: translateY(-1px);
  border-color: rgba(125, 96, 70, 0.55);
  box-shadow: 0 8px 14px rgba(108, 85, 63, 0.14);
}

.palette-item.is-active {
  border-color: rgba(120, 88, 61, 0.78);
  box-shadow: 0 0 0 2px rgba(154, 123, 95, 0.24) inset;
}

.palette-item-title {
  font-weight: 700;
  font-size: 14px;
}

.palette-item-meta {
  margin-top: 5px;
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.palette-chip {
  display: inline-flex;
  align-items: center;
  height: 20px;
  padding: 0 7px;
  border-radius: 999px;
  font-size: 11px;
  color: #fff;
  background: #8a7158;
}

.palette-chip.custom {
  background: #4f8b5a;
}

.palette-chip.current {
  background: #8a5f44;
}

.palette-editor {
  padding: 14px;
}

.palette-toolbar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.palette-name-input {
  min-width: 180px;
  flex: 1 1 220px;
  height: 36px;
  border: 1px solid #d8cfc3;
  border-radius: 8px;
  padding: 0 10px;
  font-size: 14px;
  color: var(--pp-ink);
  background: #fffdf9;
}

.palette-editor-panels {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.color-panel {
  border: 1px solid #dfd4c8;
  border-radius: 10px;
  background: #fffaf3;
  padding: 10px;
}

.color-panel-head {
  font-size: 13px;
  color: var(--pp-muted);
  margin-bottom: 8px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.color-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 6px;
}

.color-item {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
}

.color-item input[type="color"] {
  width: 26px;
  height: 26px;
  border: none;
  background: transparent;
  padding: 0;
  cursor: pointer;
}

.color-item span {
  font-size: 11px;
  color: #7f7265;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.preview-panel {
  margin-top: 12px;
  border: 1px solid #dfd4c8;
  border-radius: 10px;
  background: #fffaf3;
  padding: 10px;
}

.preview-group + .preview-group {
  margin-top: 10px;
}

.preview-group h3 {
  margin: 0 0 6px;
  font-size: 12px;
  color: #806f5d;
  letter-spacing: 0.02em;
}

.preview-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.preview-tile {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  box-shadow: 0 2px 7px rgba(72, 49, 30, 0.16);
}

.legend-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.legend-pill {
  min-width: 72px;
  height: 26px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  box-shadow: 0 1px 6px rgba(72, 49, 30, 0.18);
}

.palette-note {
  margin: 10px 0 0;
  min-height: 20px;
  font-size: 13px;
  color: var(--pp-muted);
}

.palette-note.ok {
  color: var(--pp-good);
}

.palette-note.err {
  color: var(--pp-bad);
}

@media (max-width: 980px) {
  .palette-grid {
    grid-template-columns: 1fr;
  }

  .palette-list {
    max-height: 320px;
  }

  .palette-editor-panels {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .palette-page-shell {
    width: calc(100vw - 12px);
    margin: 10px auto 18px;
  }

  .palette-title {
    font-size: 32px;
  }

  .palette-subtitle {
    font-size: 13px;
  }

  .palette-nav {
    width: 100%;
    justify-content: flex-start;
  }

  .palette-toolbar .replay-button,
  .palette-name-input {
    width: 100%;
  }
}