* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: #0f172a;
  color: #e2e8f0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container { max-width: 800px; margin: 0 auto; padding: 0 20px; }

header {
  background: linear-gradient(135deg, #1e3a5f 0%, #0f172a 100%);
  padding: 40px 0 30px;
  text-align: center;
  border-bottom: 1px solid #1e293b;
}

header h1 { font-size: 2rem; color: #38bdf8; }
header p { color: #94a3b8; margin-top: 4px; }

main { flex: 1; padding: 30px 0; }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.card {
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 12px;
  padding: 20px;
  text-align: center;
  transition: transform 0.2s, border-color 0.2s;
}

.card:hover { transform: translateY(-2px); border-color: #38bdf8; }
.card .icon { font-size: 2.5rem; margin-bottom: 8px; }
.card .city { font-size: 1.1rem; font-weight: 600; color: #f1f5f9; }
.card .temp { font-size: 1.8rem; font-weight: 700; color: #38bdf8; margin: 6px 0; }
.card .desc { font-size: 0.85rem; color: #94a3b8; }

#refresh-btn {
  display: block;
  margin: 0 auto;
  padding: 10px 28px;
  background: #38bdf8;
  color: #0f172a;
  border: none;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}

#refresh-btn:hover { background: #7dd3fc; }

footer {
  text-align: center;
  padding: 20px 0;
  color: #475569;
  font-size: 0.8rem;
  border-top: 1px solid #1e293b;
}