:root {
  --bg: #f7f7f8;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --border: #e5e7eb;
  --accent: #2563eb;
  --low: #f59e0b;
}

* {
  box-sizing: border-box;
}

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

.app {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  padding: 16px;
}

.dog-selector {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
}

.app-title {
  margin: 0 0 12px 0;
  font-size: 1.25rem;
}

.dog-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.dog-item {
  padding: 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #fff;
  font-weight: 600;
}

.dog-item.selected {
  border-color: var(--accent);
  background: #eff6ff;
  color: var(--accent);
}

.dashboard {
  display: grid;
  gap: 16px;
}

.profile-card {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 16px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  align-items: center;
}

.profile-photo {
  width: 80px;
  height: 80px;
  border-radius: 12px;
  background: #e5e7eb;
}

.profile-info {
  display: grid;
  gap: 6px;
}

.dog-name {
  margin: 0;
  font-size: 1.25rem;
}

.dog-meta {
  margin: 0;
  color: var(--muted);
}

.quick-actions {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.action-btn {
  padding: 14px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  font-size: 1rem;
  font-weight: 600;
}

.status-tiles {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.tile {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  position: relative;
}

.tile h3 {
  margin: 0 0 8px 0;
  font-size: 1rem;
}

.placeholder {
  color: var(--muted);
}

.low-stock {
  border-color: #fde68a;
  background: #fffbeb;
}

.low-stock-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--low);
  color: #fff;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
}

@media (min-width: 900px) {
  .app {
    grid-template-columns: 260px 1fr;
    align-items: start;
  }

  .status-tiles {
    grid-template-columns: repeat(2, 1fr);
  }

  .profile-card {
    grid-template-columns: 100px 1fr;
  }

  .profile-photo {
    width: 100px;
    height: 100px;
  }
}