body { font-family: 'Segoe UI', sans-serif; background: #f4f4f9; padding: 20px; }
h1 { text-align: center; color: #333; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; max-width: 1200px; margin: 0 auto; }
.card { background: white; padding: 20px; border-radius: 10px; box-shadow: 0 2px 5px rgba(0,0,0,0.1); }
.card-header { font-size: 1.2em; font-weight: bold; margin-bottom: 15px; border-bottom: 2px solid #eee; padding-bottom: 10px; }
.source-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.source-name { font-weight: 600; color: #555; }
.temp-box { text-align: right; }
.temp-main { font-size: 1.4em; font-weight: bold; color: #222; }
.temp-change { font-size: 0.8em; margin-left: 5px; }
.up { color: #d9534f; } /* Red for hotter */
.down { color: #5bc0de; } /* Blue for cooler */
.same { color: #ccc; }
.meta { font-size: 0.75em; color: #999; margin-top: 15px; text-align: center; }