* {
  box-sizing: border-box;
}

:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --border: #e5e7eb;
  --brand: #b91c1c;
  --brand-dark: #991b1b;
  --user-bg: #eef4ff;
  --assistant-bg: #fff8e7;
  --pill-bg: #f3f4f6;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.app-shell {
  min-height: 100vh;
}

.hero {
  background: linear-gradient(135deg, #991b1b, #b91c1c);
  color: white;
  padding: 36px 20px;
}

.hero-inner {
  max-width: 1000px;
  margin: 0 auto;
}

.brand-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.hero h1 {
  margin: 0 0 10px 0;
  font-size: 34px;
}

.hero-text {
  margin: 0;
  font-size: 16px;
  max-width: 760px;
  line-height: 1.6;
}

.hero-note {
  margin-top: 14px;
  display: inline-block;
  background: rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 14px;
}

.main {
  max-width: 1000px;
  margin: -24px auto 0 auto;
  padding: 0 20px 32px 20px;
}

.card {
  background: var(--card);
  border-radius: 18px;
  padding: 20px;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.08);
  border: 1px solid rgba(0, 0, 0, 0.04);
}

.chat-box {
  min-height: 420px;
  max-height: 650px;
  overflow-y: auto;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: #fafafa;
}

.msg {
  margin: 12px 0;
  padding: 14px 16px;
  border-radius: 14px;
  line-height: 1.6;
}

.msg.user {
  background: var(--user-bg);
}

.msg.assistant {
  background: var(--assistant-bg);
}

.chat-form {
  display: flex;
  gap: 10px;
  margin-top: 16px;
}

.chat-form input {
  flex: 1;
  padding: 14px;
  border-radius: 12px;
  border: 1px solid #d1d5db;
  font-size: 16px;
  outline: none;
}

.chat-form input:focus {
  border-color: #ef4444;
}

.chat-form button,
.prompt-btn {
  padding: 12px 16px;
  border: none;
  border-radius: 12px;
  background: var(--brand);
  color: white;
  cursor: pointer;
  font-size: 15px;
  transition: background 0.15s ease;
}

.chat-form button:hover,
.prompt-btn:hover {
  background: var(--brand-dark);
}

.prompt-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.result-card {
  border: 1px solid var(--border);
  background: white;
  border-radius: 12px;
  padding: 14px;
  margin: 10px 0;
}

.category-card {
  background: #fffdf8;
}

.result-meta-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.pill {
  display: inline-block;
  background: #fee2e2;
  color: #991b1b;
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 12px;
  text-transform: capitalize;
}

.pill.soft {
  background: var(--pill-bg);
  color: #374151;
}

.snippet {
  margin: 8px 0;
  color: var(--muted);
  font-size: 14px;
}

.price {
  color: #111827;
  font-size: 14px;
  font-weight: bold;
}

.note {
  color: var(--muted);
  font-size: 14px;
}

.source {
  font-size: 13px;
  color: #4b5563;
  margin-top: 12px;
}

.shopping-list,
.branch-list {
  padding-left: 20px;
}

a {
  color: var(--brand);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

h4 {
  margin-bottom: 8px;
}

@media (max-width: 720px) {
  .hero h1 {
    font-size: 28px;
  }

  .chat-form {
    flex-direction: column;
  }

  .chat-form button {
    width: 100%;
  }
}