:root{--primary-gradient: linear-gradient(135deg, #6e8efb, #a777e3);--glass-bg: rgba(255, 255, 255, .1);--glass-border: rgba(255, 255, 255, .2);--text-color: #ffffff;--accent-color: #ffd700}.upgrade-banner{background:var(--primary-gradient);padding:40px;border-radius:20px;font-family:Inter,system-ui,-apple-system,sans-serif;color:var(--text-color);box-shadow:0 10px 30px #0000001a;position:relative;overflow:hidden;max-width:800px;margin:40px auto}.upgrade-banner:before{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(circle,rgba(255,255,255,.1) 0%,transparent 70%);animation:rotate 20s linear infinite}@keyframes rotate{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.banner-content{position:relative;z-index:1;display:flex;flex-direction:column;gap:30px}.banner-header{text-align:center}.banner-header h2{font-size:2.5rem;margin:0 0 10px;font-weight:800;color:#fff;text-shadow:0 2px 4px rgba(0,0,0,.2)}.banner-header p{font-size:1.1rem;opacity:.9;margin:0}.countdown-container{display:flex;justify-content:center;gap:20px}.timer-item{background:var(--glass-bg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--glass-border);padding:15px 20px;border-radius:12px;min-width:80px;text-align:center;transition:transform .3s ease}.timer-item:hover{transform:translateY(-5px);background:#ffffff26}.timer-value{display:block;font-size:2rem;font-weight:700;line-height:1}.timer-label{font-size:.8rem;text-transform:uppercase;letter-spacing:1px;opacity:.8}.features-highlight{background:#0000001a;padding:25px;border-radius:15px}.features-highlight h3{margin:0 0 15px;font-size:1.2rem}.features-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:15px}.features-list li{display:flex;align-items:flex-start;gap:15px}.feature-icon{font-size:1.5rem;background:#fff3;width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:50%}.feature-text strong{display:block;color:var(--accent-color)}.banner-footer{text-align:center}.upgrade-button{display:inline-block;background:var(--accent-color);color:#333;padding:15px 40px;border-radius:50px;text-decoration:none;font-weight:700;font-size:1.2rem;transition:all .3s ease;box-shadow:0 5px 15px #0003}.upgrade-button:hover{transform:scale(1.05);box-shadow:0 8px 25px #0000004d;background:#fff}@media (max-width: 768px){.upgrade-banner{padding:30px 20px;margin:20px}.banner-header h2{font-size:2rem}.countdown-container{display:grid;grid-template-columns:repeat(2,1fr);gap:15px;max-width:400px;margin:0 auto}.timer-item{padding:12px;min-width:unset}.timer-value{font-size:1.8rem}.features-highlight{padding:20px}.upgrade-button{width:100%;padding:15px 20px;box-sizing:border-box}}@media (max-width: 400px){.banner-header h2{font-size:1.6rem}.countdown-container{grid-template-columns:repeat(2,1fr);gap:10px}.timer-value{font-size:1.5rem}}.powered-by{margin-top:15px;font-size:.8rem;opacity:.7;font-style:italic;text-align:center}