:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #14141f;
  --bg-tertiary: #1e1e2e;
  --text-primary: #ffffff;
  --text-secondary: #a0a0b0;
  --text-muted: #606070;
  --accent: #00d4ff;
  --accent-secondary: #00ff88;
  --danger: #ff4466;
  --focus-ring: #00d4ff;
  --focus-glow: rgba(0, 212, 255, 0.4);
  --radius-md: 12px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html, body {
  width: 600px; height: 600px; overflow: hidden;
  background: #000;
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}
#app { width: 100%; height: 100%; position: relative; }
.screen { width: 100%; height: 100%; position: absolute; top: 0; left: 0; display: flex; flex-direction: column; }
.screen.hidden { display: none; }
.focusable { transition: all 0.15s ease; border: 2px solid transparent; cursor: pointer; outline: none; }
.focusable:focus { border-color: var(--focus-ring); box-shadow: 0 0 20px var(--focus-glow); }
.hidden { display: none !important; }

/* ---------- shared chrome ---------- */
.bar {
  flex: 0 0 auto;
  background: var(--bg-primary);
  padding: 18px 22px 14px;
  border-bottom: 1px solid var(--bg-tertiary);
}
.title { font-size: 26px; font-weight: 700; letter-spacing: -0.3px; }
.subtitle { font-size: 14px; color: var(--text-secondary); margin-top: 3px; }
.body {
  flex: 1 1 auto;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.body::-webkit-scrollbar { width: 0; height: 0; }
.hint {
  flex: 0 0 auto;
  background: var(--bg-primary);
  color: var(--text-muted);
  font-size: 12px;
  text-align: center;
  padding: 9px;
  letter-spacing: 0.4px;
  border-top: 1px solid var(--bg-tertiary);
}

/* ---------- home group rows ---------- */
.group-row {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  min-height: 76px;
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  text-align: left;
  color: var(--text-primary);
}
.group-meta { flex: 0 0 auto; min-width: 140px; }
.group-name { display: block; font-size: 19px; font-weight: 600; }
.group-count { display: block; font-size: 13px; color: var(--text-secondary); margin-top: 2px; }
.strip { display: flex; flex: 1 1 auto; height: 40px; border-radius: 8px; overflow: hidden; border: 1px solid rgba(255,255,255,0.12); }
.strip span { flex: 1 1 auto; }

/* ---------- list color rows ---------- */
.color-row {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  min-height: 60px;
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  padding: 8px 14px;
  text-align: left;
  color: var(--text-primary);
}
.swatch {
  flex: 0 0 auto;
  width: 44px; height: 44px;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.18);
}
.c-name { flex: 1 1 auto; font-size: 17px; font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.c-fav { flex: 0 0 auto; color: var(--accent-secondary); font-size: 16px; width: 18px; text-align: center; }
.c-hex { flex: 0 0 auto; font-size: 14px; color: var(--text-secondary); font-variant-numeric: tabular-nums; letter-spacing: 0.5px; }

.empty {
  margin: auto;
  text-align: center;
  color: var(--text-secondary);
  font-size: 16px;
  padding: 40px 20px;
  line-height: 1.5;
}

/* ---------- detail ---------- */
.detail-swatch {
  flex: 0 0 auto;
  height: 240px;
  width: 100%;
  border-bottom: 1px solid rgba(255,255,255,0.14);
}
.detail-info {
  flex: 1 1 auto;
  overflow-y: auto;
  padding: 18px 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.detail-info::-webkit-scrollbar { width: 0; }
.detail-name { font-size: 30px; font-weight: 700; letter-spacing: -0.4px; }
.val-row { display: flex; align-items: baseline; gap: 12px; }
.val-label { width: 54px; flex: 0 0 auto; font-size: 13px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; }
.val-data { font-size: 19px; font-weight: 500; font-variant-numeric: tabular-nums; }
.detail-actions {
  flex: 0 0 auto;
  display: flex;
  gap: 12px;
  padding: 0 22px 16px;
}
.btn {
  flex: 1 1 0;
  min-height: 56px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 17px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.btn.fav-on { color: var(--accent-secondary); }