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li{color:#4b5563;line-height:1.6;margin-bottom:.5rem}.contact-info{background:linear-gradient(135deg,#f59e0b0d,#d977060d);padding:1.5rem;border-radius:10px;border-left:4px solid #f59e0b;margin-top:1rem;border:1px solid rgba(245,158,11,.1)}.contact-info p{margin-bottom:.5rem;color:#374151}.contact-info strong{color:#1f2937;font-weight:600}@media (max-width: 768px){.terms-of-service{padding:1rem 0}.terms-content{margin:0 1rem;padding:2rem;border-radius:15px}.terms-title{font-size:2rem}.terms-section h2{font-size:1.3rem}}@media (max-width: 480px){.terms-content{padding:1.5rem}.terms-title{font-size:1.8rem}.terms-section h2{font-size:1.2rem}}.billing-page{min-height:100vh;background:linear-gradient(135deg,#f59e0b,#d97706);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.navbar{position:fixed;top:0;left:0;right:0;background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid rgba(245,158,11,.1);box-shadow:0 2px 20px #f59e0b1a;z-index:1000;padding:0}.nav-container{max-width:1200px;margin:0 auto;padding:0 2rem;display:flex;align-items:center;justify-content:space-between;height:70px}.nav-logo{display:flex;align-items:center;gap:.75rem;text-decoration:none;color:inherit;transition:all .3s ease;cursor:pointer}.nav-logo:hover{transform:translateY(-1px);opacity:.8}.logo-img{width:40px;height:40px;border-radius:8px}.nav-logo-text{font-size:1.5rem;font-weight:700;background:linear-gradient(135deg,#f59e0b,#d97706);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin:0}.nav-links{display:flex;gap:2rem}.nav-links a{color:#374151;text-decoration:none;font-weight:500;transition:color .3s ease;position:relative}.nav-links a:hover{color:#f59e0b}.nav-links a:after{content:"";position:absolute;bottom:-5px;left:0;width:0;height:2px;background:linear-gradient(135deg,#f59e0b,#d97706);transition:width .3s ease}.nav-links a:hover:after{width:100%}.nav-actions{display:flex;align-items:center;gap:1rem}.login-btn{background:linear-gradient(135deg,#f59e0b,#d97706);color:#fff;border:none;padding:.75rem 1.5rem;border-radius:8px;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:0 2px 8px #f59e0b4d}.login-btn:hover{transform:translateY(-2px);box-shadow:0 4px 12px #f59e0b66}.billing-content{padding-top:80px;min-height:100vh;display:flex;align-items:center;justify-content:center;padding:100px 1rem 2rem}.billing-container{max-width:800px;width:100%}.billing-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:3rem;position:relative}.billing-title{position:absolute;left:50%;transform:translate(-50%);margin:0}.back-btn{background:#fff3;border:2px solid rgba(255,255,255,.3);color:#fff;padding:.75rem;border-radius:50%;width:48px;height:48px;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;justify-content:center;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.back-btn:hover{background:#ffffff4d;border-color:#ffffff80;transform:translateY(-2px)}.back-icon{font-size:1.2rem}.billing-title{font-size:3rem;font-weight:700;color:#fff;margin:0;text-shadow:0 2px 4px rgba(0,0,0,.1);position:absolute;left:50%;transform:translate(-50%)}.billing-card{background:#fff;border-radius:20px;padding:3rem;box-shadow:0 25px 50px #00000026;border:1px solid rgba(245,158,11,.1)}.billing-info{text-align:center;margin-bottom:3rem}.billing-subtitle{font-size:1.5rem;font-weight:700;color:#1f2937;margin:0 0 1rem}.billing-description{font-size:1rem;color:#6b7280;margin:0;line-height:1.6}.balance-section{margin-bottom:3rem}.balance-card{background:linear-gradient(135deg,#f59e0b0d,#d977060d);border:2px solid rgba(245,158,11,.2);border-radius:16px;padding:2rem;display:flex;align-items:center;gap:1.5rem}.balance-icon{font-size:3rem;flex-shrink:0}.balance-info{flex:1}.balance-title{font-size:1.25rem;font-weight:600;color:#374151;margin:0 0 .5rem}.balance-amount{font-size:2.5rem;font-weight:700;color:#f59e0b;margin:0 0 .5rem}.balance-description{font-size:.875rem;color:#6b7280;margin:0}.purchase-history{margin-bottom:3rem}.history-title{font-size:1.25rem;font-weight:600;color:#374151;margin:0 0 1.5rem}.history-list{background:#f9fafb;border-radius:12px;padding:2rem;border:1px solid #e5e7eb}.history-empty{text-align:center;color:#6b7280}.empty-icon{font-size:3rem;margin-bottom:1rem;opacity:.5}.empty-text{font-size:1rem;margin:0}.purchase-actions{text-align:center}.purchase-btn{background:linear-gradient(135deg,#f59e0b,#d97706);color:#fff;border:none;padding:1rem 2rem;border-radius:12px;font-size:1.125rem;font-weight:600;cursor:pointer;transition:all .3s ease;display:inline-flex;align-items:center;gap:.75rem;box-shadow:0 4px 12px #f59e0b4d}.purchase-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px #f59e0b66}.btn-icon{font-size:1.25rem}@media (max-width: 768px){.nav-container{padding:0 1rem;height:60px}.nav-links{display:none}.billing-content{padding:80px 1rem 2rem}.billing-card{padding:2rem}.billing-title{font-size:2rem}.balance-card{flex-direction:column;text-align:center;gap:1rem}.balance-amount{font-size:2rem}}@media (max-width: 480px){.billing-card,.balance-card,.history-list{padding:1.5rem}}