:root{--primary-purple:#667eea;--primary-violet:#764ba2;--primary-gradient:linear-gradient(135deg, #667eea 0%, #764ba2 100%);--primary-hover:#5568d3;--success-green:#28a745;--success-teal:#20c997;--success-gradient:linear-gradient(135deg, #28a745 0%, #20c997 100%);--error-red:#dc3545;--warning-yellow:#ffc107;--warning-bg:#fff3cd;--warning-text:#856404;--white:#ffffff;--gray-100:#f8f9fa;--gray-200:#e0e0e0;--gray-300:#999;--gray-400:#666;--gray-500:#555;--gray-600:#333;--gray-700:#6c757d;--gray-800:#5a6268;--black:#000000;--text-primary:#333;--text-secondary:#666;--text-tertiary:#555;--bg-white:#ffffff;--bg-light:#f8f9fa;--border-light:#e0e0e0;--border-focus:#667eea;--overlay-dark:rgba(0, 0, 0, 0.6);--overlay-darker:rgba(0, 0, 0, 0.8);--shadow-dark:rgba(0, 0, 0, 0.3);--shadow-purple:rgba(102, 126, 234, 0.3);--shadow-green:rgba(40, 167, 69, 0.3);--purple-overlay-light:rgba(102, 126, 234, 0.05);--violet-overlay-light:rgba(118, 75, 162, 0.05);--purple-overlay:rgba(102, 126, 234, 0.1);--violet-overlay:rgba(118, 75, 162, 0.1);--purple-focus:rgba(102, 126, 234, 0.1);--purple-shadow-light:rgba(102, 126, 234, 0.2)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background:var(--primary-gradient);min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}.container{background:var(--white);border-radius:16px;box-shadow:0 20px 60px var(--shadow-dark);padding:40px;max-width:600px;width:100%}h1{color:var(--text-primary);margin-bottom:10px;font-size:32px;text-align:center}.subtitle{color:var(--text-secondary);text-align:center;margin-bottom:30px;font-size:14px}.form-group{margin-bottom:20px}label{display:block;color:var(--text-tertiary);font-weight:500;margin-bottom:8px;font-size:14px}input[type="text"]{width:100%;padding:14px 16px;border:2px solid var(--border-light);border-radius:8px;font-size:16px;transition:all 0.3s ease;outline:none}input[type="text"]:focus{border-color:var(--border-focus);box-shadow:0 0 0 3px var(--purple-focus)}button{width:100%;padding:14px;background:var(--primary-gradient);color:var(--white);border:none;border-radius:8px;font-size:16px;font-weight:600;cursor:pointer;transition:transform 0.2s ease,box-shadow 0.2s ease}button:hover{transform:translateY(-2px);box-shadow:0 10px 20px var(--shadow-purple)}button:active{transform:translateY(0)}.result{background:var(--bg-light);border:2px solid var(--primary-purple);border-radius:8px;padding:20px;margin-top:20px}.result-label{color:var(--text-tertiary);font-size:14px;font-weight:500;margin-bottom:8px}.shortened-url{display:flex;gap:10px;align-items:center}.url-display{flex:1;padding:12px;background:var(--white);border:1px solid var(--border-light);border-radius:6px;word-break:break-all;font-family:"Courier New",monospace;font-size:14px;color:var(--primary-purple)}.copy-btn{padding:12px 20px;background:var(--primary-purple);color:var(--white);border:none;border-radius:6px;cursor:pointer;font-size:14px;font-weight:500;white-space:nowrap;transition:background 0.2s ease}.copy-btn:hover{background:var(--primary-hover)}.copy-btn.copied{background:var(--success-green)}.error{background:var(--warning-bg);border:1px solid var(--warning-yellow);color:var(--warning-text);padding:12px;border-radius:6px;margin-top:10px;font-size:14px}.modal{display:none;position:fixed;z-index:1000;left:0;top:0;width:100%;height:100%;background-color:var(--overlay-dark);animation:fadeIn 0.3s ease}.modal.show{display:flex;align-items:center;justify-content:center}@keyframes fadeIn{from{opacity:0}to{opacity:1}}.modal-content{background:var(--white);border-radius:16px;padding:40px;max-width:900px;width:90%;max-height:90vh;overflow-y:auto;position:relative;animation:slideUp 0.3s ease}@keyframes slideUp{from{transform:translateY(50px);opacity:0}to{transform:translateY(0);opacity:1}}.close-btn{position:absolute;top:15px;right:20px;font-size:28px;font-weight:700;color:var(--gray-300);cursor:pointer;background:none;border:none;width:auto;padding:0;line-height:1;transition:color 0.2s ease}.close-btn:hover{color:var(--text-primary);transform:none;box-shadow:none}.modal-header{text-align:center;margin-bottom:30px}.modal-header h2{color:var(--text-primary);font-size:28px;margin-bottom:10px}.modal-header p{color:var(--text-secondary);font-size:14px}.pricing-cards{display:flex;flex-direction:row;gap:20px}@media (max-width:768px){.pricing-cards{flex-direction:column}}.pricing-card{flex:1;border:2px solid var(--border-light);border-radius:12px;padding:25px;transition:all 0.3s ease;display:flex;flex-direction:column}.pricing-card:hover{border-color:var(--primary-purple);box-shadow:0 5px 15px var(--purple-shadow-light)}.pricing-card.featured{border-color:var(--primary-purple);background:linear-gradient(135deg,var(--purple-overlay-light) 0%,var(--violet-overlay-light) 100%)}.plan-name{font-size:20px;font-weight:600;color:var(--text-primary);margin-bottom:10px}.plan-price{font-size:32px;font-weight:700;color:var(--primary-purple);margin-bottom:5px}.plan-price span{font-size:16px;color:var(--text-secondary);font-weight:400}.plan-features{list-style:none;margin:20px 0;flex-grow:1}.plan-features li{padding:8px 0;color:var(--text-tertiary);font-size:14px}.plan-features li:before{content:"✓ ";color:var(--success-green);font-weight:700;margin-right:8px}.plan-btn{width:100%;padding:12px;background:var(--primary-gradient);color:var(--white);border:none;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;transition:transform 0.2s ease;margin-top:auto}.plan-btn:hover{transform:translateY(-2px)}.featured .plan-btn{background:linear-gradient(135deg,var(--primary-violet) 0%,var(--primary-purple) 100%)}.payment-form{max-width:500px;margin:0 auto}.form-row{display:flex;gap:15px;margin-bottom:15px}.form-row .form-group{flex:1;margin-bottom:0}input[type="text"],input[type="email"],input[type="tel"]{width:100%;padding:12px 14px;border:2px solid var(--border-light);border-radius:8px;font-size:14px;transition:all 0.3s ease;outline:none}input[type="text"]:focus,input[type="email"]:focus,input[type="tel"]:focus{border-color:var(--border-focus);box-shadow:0 0 0 3px var(--purple-focus)}.selected-plan{background:linear-gradient(135deg,var(--purple-overlay) 0%,var(--violet-overlay) 100%);padding:20px;border-radius:8px;margin-bottom:25px;text-align:center}.selected-plan h3{color:var(--text-primary);font-size:20px;margin-bottom:5px}.selected-plan 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ease;margin-top:10px}.back-btn:hover{background:var(--gray-800);transform:none}.error-message{color:var(--error-red);font-size:12px;margin-top:5px;display:none}.error-message.show{display:block}input.invalid{border-color:var(--error-red)}input.valid{border-color:var(--success-green)}.loader-overlay{display:none;position:fixed;z-index:2000;left:0;top:0;width:100%;height:100%;background-color:var(--overlay-darker);align-items:center;justify-content:center}.loader-overlay.show{display:flex}.loader{border:5px solid var(--gray-100);border-top:5px solid var(--primary-purple);border-radius:50%;width:60px;height:60px;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0deg)}100%{transform:rotate(360deg)}}.loader-text{color:var(--white);margin-top:20px;font-size:16px;text-align:center}.loader-container{display:flex;flex-direction:column;align-items:center}.error-popup{display:none;position:fixed;z-index:2001;left:0;top:0;width:100%;height:100%;background-color:var(--overlay-dark);align-items:center;justify-content:center}.error-popup.show{display:flex}.error-popup-content{background:var(--white);border-radius:16px;padding:40px;max-width:400px;width:90%;text-align:center;animation:slideUp 0.3s ease}.error-icon{width:80px;height:80px;margin:0 auto 20px;border-radius:50%;background:var(--error-red);display:flex;align-items:center;justify-content:center;font-size:48px;color:var(--white)}.error-popup-content h3{color:var(--text-primary);font-size:24px;margin-bottom:10px}.error-popup-content p{color:var(--text-secondary);font-size:14px;margin-bottom:25px}.error-popup-btn{width:100%;padding:12px;background:var(--primary-purple);color:var(--white);border:none;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;transition:background 0.2s ease}.error-popup-btn:hover{background:var(--primary-hover)}