:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --line: #e5e7eb;
  --coke: #e1162b;
  --pepsi: #1b61e0;
  --accent: #0f172a;
}

html, body { margin: 0; padding: 0; width: 100%; height: 100%; background: var(--bg); color: var(--text); font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif; }

#app { display: grid; grid-template-columns: 360px 1fr; width: 100%; height: 100vh; }

.panel { background: #fafbfc; border-right: 1px solid var(--line); padding: 20px; display: flex; flex-direction: column; gap: 16px; overflow-y: auto; }
.content { padding: 20px; overflow-y: auto; }

.brand-header { display: flex; align-items: center; gap: 10px; }
.brand { flex: 1; font-weight: 700; font-size: 20px; padding: 10px 12px; border-radius: 10px; text-align: center; background: var(--card); border: 1px solid var(--line); }
.brand.coke { color: var(--coke); }
.brand.pepsi { color: var(--pepsi); }
.vs { font-weight: 600; color: var(--muted); }

.controls { display: flex; flex-direction: column; gap: 12px; }
.control-label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.06em; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { background: var(--card); border: 1px solid var(--line); border-radius: 999px; padding: 8px 12px; font-size: 14px; display: inline-flex; align-items: center; gap: 8px; }
.chip .remove { width: 22px; height: 22px; border-radius: 50%; border: 1px solid var(--line); display: grid; place-items: center; color: var(--muted); background: #fff; cursor: pointer; }

.add-row { display: flex; gap: 8px; }
.input { flex: 1; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--line); background: #fff; font-size: 14px; }
.btn { padding: 10px 12px; border-radius: 10px; border: 1px solid var(--line); background: #fff; color: var(--text); cursor: pointer; }
.btn:hover { border-color: #cbd5e1; }
.btn.primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn.ghost { background: transparent; }

.toggle-group { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.toggle { padding: 10px 12px; border-radius: 10px; border: 1px solid var(--line); background: #fff; color: var(--text); cursor: pointer; font-size: 14px; }
.toggle.active { background: #0b1225; color: #fff; border-color: #0b1225; }

.actions { display: flex; gap: 8px; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 14px; display: flex; flex-direction: column; gap: 12px; }
.card-title { font-weight: 600; color: var(--muted); }
.grid { display: grid; grid-template-columns: 1fr 1fr; grid-auto-rows: minmax(300px, auto); gap: 14px; }
.card.wide { grid-column: 1 / -1; min-height: 240px; }

.table { width: 100%; border-collapse: collapse; }
.row { display: grid; grid-template-columns: 2fr 1fr 1fr 80px; padding: 8px 0; border-bottom: 1px solid var(--line); align-items: center; }
.row.head { font-size: 12px; color: var(--muted); text-transform: uppercase; }
.row .bar { height: 6px; border-radius: 999px; background: #eef2ff; position: relative; overflow: hidden; }
.row .bar .coke { position: absolute; left: 0; top: 0; bottom: 0; background: var(--coke); }
.row .bar .pepsi { position: absolute; right: 0; top: 0; bottom: 0; background: var(--pepsi); }

.loading { position: fixed; inset: 0; background: rgba(13, 18, 33, 0.28); backdrop-filter: blur(2px); display: grid; place-items: center; gap: 10px; }
.loading.hidden { display: none; }
.spinner { width: 36px; height: 36px; border-radius: 50%; border: 3px solid #fff; border-top-color: #0b1225; animation: spin 1s linear infinite; }
.loading-text { color: #fff; font-weight: 600; }

@keyframes spin { to { transform: rotate(360deg); } }

@media (max-width: 960px) {
  #app { grid-template-columns: 1fr; height: auto; min-height: 100vh; }
  .grid { grid-template-columns: 1fr; }
}