:root {
  --bg: #f7f8fa;
  --surface: #ffffff;
  --border: #e1e4ea;
  --text: #1a1d24;
  --muted: #656b78;
  --accent: #10b981;
  --budget: #10b981;
  --balanced: #0ea5e9;
  --premium: #c026d3;
}

* {
  box-sizing: border-box;
}

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

.container {
  max-width: 780px;
  margin: 0 auto;
  padding: 64px 20px 40px;
}

header {
  text-align: center;
  margin-bottom: 32px;
}

h1 {
  font-size: 2.2rem;
  margin: 0 0 8px;
}

.rainbow {
  animation: rainbow-cycle 4s linear infinite;
}

@keyframes rainbow-cycle {
  0% { color: hsl(0, 85%, 55%); }
  16.66% { color: hsl(60, 85%, 45%); }
  33.33% { color: hsl(120, 70%, 45%); }
  50% { color: hsl(180, 70%, 40%); }
  66.66% { color: hsl(240, 70%, 60%); }
  83.33% { color: hsl(300, 70%, 55%); }
  100% { color: hsl(360, 85%, 55%); }
}

@media (prefers-reduced-motion: reduce) {
  .rainbow {
    animation: none;
    color: var(--accent);
  }
}

.subtitle {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 560px;
  margin: 0 auto 16px;
}

.subtitle:last-child {
  margin-bottom: 0;
}

#query-form {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
}

#query-input {
  flex: 1;
  padding: 14px 16px;
  font-size: 1rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
}

#query-input:focus {
  outline: 2px solid var(--accent);
}

.examples {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.example-chip {
  padding: 7px 14px;
  font-size: 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  cursor: pointer;
}

.example-chip:hover {
  border-color: var(--accent);
  color: var(--text);
}

#submit-btn {
  padding: 14px 22px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 10px;
  border: none;
  background: var(--accent);
  color: #ffffff;
  cursor: pointer;
}

#submit-btn:disabled {
  opacity: 0.6;
  cursor: default;
}

.status {
  text-align: center;
  color: var(--muted);
  margin: 16px 0;
  min-height: 1.4em;
}

.status.error {
  color: #dc2626;
}

.status.question {
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 16px;
  font-weight: 600;
}

.results {
  margin-top: 24px;
}

.task-label {
  text-align: center;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.8rem;
  margin-bottom: 20px;
}

.task-label.skeleton {
  color: transparent;
  background: #e5e7eb;
  border-radius: 4px;
  display: block;
  width: 160px;
  height: 0.8rem;
  margin: 0 auto 20px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
  border-top: 3px solid transparent;
}

.card.budget { border-top-color: var(--budget); }
.card.balanced { border-top-color: var(--balanced); }
.card.premium { border-top-color: var(--premium); }

.card.skeleton { border-top-color: var(--border); }

.card.skeleton .model,
.card.skeleton .price,
.card.skeleton .why {
  color: transparent;
  background: #e5e7eb;
  border-radius: 4px;
}

.card.skeleton .model { width: 70%; }
.card.skeleton .price { width: 50%; }
.card.skeleton .why { width: 100%; }

.card h2 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0 0 10px;
  color: var(--muted);
}

.card .model {
  font-weight: 700;
  font-size: 1.05rem;
  line-height: 1.25;
  margin: 0 0 4px;
  min-height: calc(1.25em * 2);
}

.card .price {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.3;
  margin: 0 0 10px;
  min-height: calc(1.3em * 2);
}

.card .why {
  font-size: 0.9rem;
  line-height: 1.4;
  margin: 0;
  min-height: calc(1.4em * 4);
}

.summary {
  margin-top: 20px;
  text-align: center;
  font-size: 1rem;
  line-height: 1.4;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 18px;
  min-height: calc(1.4em * 4);
  display: flex;
  align-items: center;
  justify-content: center;
}

.summary.skeleton {
  color: transparent;
  background: #e5e7eb;
  border-color: #e5e7eb;
}

footer {
  margin-top: 48px;
  text-align: center;
  color: var(--muted);
  font-size: 0.8rem;
}

footer p {
  margin: 4px 0;
}

footer a {
  color: var(--muted);
  text-decoration: underline;
}

footer a:hover {
  color: var(--text);
}

@media (max-width: 640px) {
  #query-form {
    flex-direction: column;
  }
  .cards {
    grid-template-columns: 1fr;
  }
}