:root {
  --bg: #f1f5f9;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --accent: #2563eb;
  --accent-soft: #dbeafe;
  --warn: #b45309;
  --warn-bg: #fffbeb;
  --border: #e2e8f0;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(15, 23, 42, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

a { color: var(--accent); }

.wrap {
  width: min(1100px, 100% - 2rem);
  margin-inline: auto;
}

.topbar {
  background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 55%, #3b82f6 100%);
  color: #fff;
  padding: 1.75rem 0 1.25rem;
}

.eyebrow {
  margin: 0;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0.85;
}

.topbar h1 {
  margin: 0.25rem 0 0;
  font-size: clamp(1.5rem, 4vw, 2rem);
}

.topbar__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: flex-end;
}

.stats-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.pill {
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 999px;
  padding: 0.25rem 0.65rem;
  font-size: 0.8rem;
}

.pill--accent { background: #fff; color: var(--accent); font-weight: 700; }
.pill--muted { opacity: 0.9; }

.tabs {
  display: flex;
  gap: 0.35rem;
  padding: 1rem 0 0.5rem;
  overflow-x: auto;
}

.tab {
  border: 0;
  background: var(--card);
  color: var(--muted);
  padding: 0.55rem 1rem;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 600;
  white-space: nowrap;
  box-shadow: var(--shadow);
}

.tab--active {
  background: var(--accent);
  color: #fff;
}

main { padding: 0.5rem 0 3rem; }

.panel { display: none; }
.panel--active { display: block; }

.panel > h2 { margin: 0 0 1rem; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow);
}

.card--warn {
  border-color: #fcd34d;
  background: var(--warn-bg);
}

.filters__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.75rem;
  align-items: end;
}

label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
}

input, select {
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
  color: var(--text);
}

.filters__actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.btn {
  border: 0;
  border-radius: 8px;
  padding: 0.55rem 1rem;
  font-weight: 600;
  cursor: pointer;
}

.btn--primary { background: var(--accent); color: #fff; }
.btn--ghost { background: var(--bg); color: var(--text); border: 1px solid var(--border); }

.hint, .meta { color: var(--muted); font-size: 0.9rem; }
.hint code { background: var(--accent-soft); padding: 0.1rem 0.35rem; border-radius: 4px; }

.status {
  min-height: 1.5rem;
  margin: 0.5rem 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
}

.product-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.product-card .badge {
  align-self: flex-start;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  text-transform: uppercase;
}

.product-card h3 {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.35;
}

.product-card h3 a {
  color: inherit;
  text-decoration: none;
}

.product-card h3 a:hover { color: var(--accent); }

.product-card .sku { font-size: 0.8rem; color: var(--muted); margin: 0; }
.product-card .price {
  margin: 0.25rem 0 0;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent);
}

.product-card .link {
  margin-top: auto;
  font-size: 0.85rem;
  font-weight: 600;
}

.pagination {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  margin-top: 1rem;
}

.pagination button {
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 8px;
  padding: 0.4rem 0.75rem;
  cursor: pointer;
}

.pagination button:disabled { opacity: 0.45; cursor: not-allowed; }
.pagination .current {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.partner-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}

.partner-card h3, .strategy-card h3 { margin-top: 0; }

.partner-card__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}

.partner-card ul { margin: 0; padding-left: 1.2rem; }
.partner-card li { margin-bottom: 0.35rem; }

.diagram {
  background: #0f172a;
  color: #e2e8f0;
  padding: 1rem;
  border-radius: 8px;
  overflow-x: auto;
  font-size: 0.85rem;
}

.ok { color: #15803d; }

.caution-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
}

.caution-list li {
  padding: 0.65rem 0.65rem 0.65rem 2rem;
  position: relative;
  border-bottom: 1px solid var(--border);
}

.caution-list li:last-child { border-bottom: 0; }

.caution-list li::before {
  content: "!";
  position: absolute;
  left: 0.65rem;
  top: 0.65rem;
  width: 1.1rem;
  height: 1.1rem;
  background: #fef3c7;
  color: var(--warn);
  border-radius: 50%;
  font-size: 0.7rem;
  font-weight: 800;
  display: grid;
  place-items: center;
}

.footer {
  border-top: 1px solid var(--border);
  padding: 1.25rem 0 2rem;
  color: var(--muted);
  font-size: 0.85rem;
}

.empty-state {
  text-align: center;
  padding: 2rem;
  color: var(--muted);
  grid-column: 1 / -1;
}

@media (max-width: 640px) {
  .filters__actions { grid-column: 1 / -1; }
}