*{margin:0;padding:0;box-sizing:border-box}.app{min-height:100vh;background-color:#b0d7ff;display:flex;flex-direction:column;align-items:center;padding:0 20px}.countdown-banner{background:#0a0a0a;padding:25px 20px;border-radius:10px;text-align:center;margin-top:100px}.timer-display{font-family:Courier New,monospace;font-size:1.5rem;font-weight:700;color:#fff;display:flex;align-items:center;gap:4px}