.promo-container{background:linear-gradient(135deg,#004aad,#00aaff);color:#fff;text-align:center;padding:30px;border-radius:10px;font-family:Arial,sans-serif;max-width:600px;margin:40px auto;box-shadow:0 4px 12px rgb(0 0 0 / .25)}.promo-title{font-size:1.8em;font-weight:700;margin-bottom:10px}.promo-text{color:#fff;font-size:1.1em;margin-bottom:20px}.countdown{font-size:2em;font-weight:700;background:rgb(255 255 255 / .2);padding:10px 20px;border-radius:8px;display:inline-block}.footer-text{margin-top:20px;font-size:.9em;opacity:.9}