*{margin:0;padding:0;box-sizing:border-box}html{overflow-y:scroll}body{font-family:'Inter',system-ui,-apple-system,sans-serif;line-height:1.6;color:#1a202c;background:#fff}.header{background:#fff;border-bottom:1px solid #e2e8f0;padding:1rem 0;position:sticky;top:0;z-index:100}.nav-container{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;justify-content:space-between;align-items:center}.logo{font-size:1.5rem;font-weight:700;color:#667eea;text-decoration:none}.nav-links{display:flex;gap:2rem;list-style:none}.nav-links a{color:#4a5568;text-decoration:none;font-weight:500;transition:color .3s ease;position:relative;padding-bottom:4px}.nav-links a:hover{color:#667eea}.nav-links a.active{color:#667eea;font-weight:600}.nav-links a.active::after{content:'';position:absolute;bottom:-1px;left:0;right:0;height:3px;background:#667eea;border-radius:2px 2px 0 0}.container{max-width:1200px;margin:0 auto;padding:0 20px}.btn{padding:12px 24px;border-radius:8px;text-decoration:none;font-weight:600;transition:all .3s ease;border:2px solid;display:inline-block;text-align:center}.btn-primary{background:#667eea;color:#fff;border-color:#667eea}.btn-primary:hover{background:#5568d3;border-color:#5568d3;transform:translateY(-2px)}.btn-secondary{background:transparent;color:#fff;border-color:rgba(255,255,255,.3)}.btn-secondary:hover{background:rgba(255,255,255,.1);border-color:#fff}.btn-white{background:#fff;color:#667eea;border-color:#fff}.btn-white:hover{background:#f7fafc;transform:translateY(-2px)}.btn-submit{width:100%;padding:.875rem;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease}.btn-submit:hover{transform:translateY(-2px);box-shadow:0 10px 20px rgba(102,126,234,.3)}.btn-submit:active{transform:translateY(0)}.btn-submit:disabled{background:#cbd5e0;cursor:not-allowed;transform:none}.btn-social{flex:1;padding:.75rem;border:1px solid #e2e8f0;border-radius:8px;background:#fff;color:#4a5568;font-weight:500;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;justify-content:center;gap:.5rem}.btn-social:hover{background:#f7fafc;border-color:#cbd5e0}.form-group{margin-bottom:1.5rem}.form-label{display:block;font-weight:500;color:#2d3748;margin-bottom:.5rem;font-size:.95rem}.form-input{width:100%;padding:.75rem 1rem;border:1px solid #cbd5e0;border-radius:8px;font-size:1rem;font-family:inherit;transition:all .3s ease}.form-input:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 3px rgba(102,126,234,.1)}.form-input::placeholder{color:#a0aec0}.form-error{color:#f56565;font-size:.875rem;margin-top:.25rem;display:none}.form-input.error{border-color:#f56565}.form-input.error+.form-error{display:block}.form-checkbox{display:flex;align-items:center;gap:.5rem}.form-checkbox input[type="checkbox"]{width:18px;height:18px;cursor:pointer}.form-checkbox label{color:#4a5568;font-size:.9rem;cursor:pointer}.form-checkbox a{color:#667eea;text-decoration:none}.form-checkbox a:hover{text-decoration:underline}.form-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}.section-header{text-align:center;margin-bottom:3rem}.section-header h2{font-size:2.5rem;font-weight:700;margin-bottom:1rem;color:#2d3748}.section-header p{font-size:1.1rem;color:#718096;max-width:600px;margin:0 auto}.pricing-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem}.pricing-card{background:#fff;border:2px solid #e2e8f0;border-radius:12px;padding:2rem;text-align:center;position:relative;transition:transform .3s ease,box-shadow .3s ease}.pricing-card:hover{transform:translateY(-4px);box-shadow:0 20px 25px -5px rgba(0,0,0,.1)}.pricing-card.featured{border-color:#667eea}.pricing-card.featured::before{content:'Most Popular';position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:#667eea;color:#fff;padding:4px 16px;border-radius:16px;font-size:.75rem;font-weight:600;white-space:nowrap}.plan-name{font-size:1.5rem;font-weight:700;color:#2d3748;margin-bottom:.5rem}.plan-price{font-size:3rem;font-weight:700;color:#667eea;margin-bottom:.5rem}.plan-price span{font-size:1rem;color:#718096}.plan-description{color:#718096;margin-bottom:2rem;font-size:.95rem}.plan-features{list-style:none;margin-bottom:2rem;text-align:left}.plan-features li{padding:.5rem 0;display:flex;align-items:center;font-size:.95rem}.plan-features li:before{content:'✓';color:#48bb78;font-weight:bold;margin-right:.75rem;flex-shrink:0}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem}.feature-card{background:#fff;padding:1.5rem;border-radius:12px;box-shadow:0 4px 6px -1px rgba(0,0,0,.1);transition:transform .3s ease,box-shadow .3s ease}.feature-card:hover{transform:translateY(-4px);box-shadow:0 20px 25px -5px rgba(0,0,0,.1)}.feature-icon{width:48px;height:48px;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:8px;display:flex;align-items:center;justify-content:center;margin-bottom:1rem;color:#fff;font-size:1.5rem}.feature-card h3{font-size:1.2rem;font-weight:600;margin-bottom:.75rem;color:#2d3748}.feature-card p{color:#718096;line-height:1.6;font-size:.95rem}.code-block{background:#2d3748;color:#e2e8f0;padding:1.5rem;border-radius:8px;margin:1.5rem 0;overflow-x:auto;font-family:'Monaco','Consolas',monospace;font-size:.9rem;line-height:1.5}.code-inline{background:#edf2f7;color:#d53f8c;padding:.2rem .4rem;border-radius:4px;font-family:'Monaco','Consolas',monospace;font-size:.9em}.code-example{background:rgba(0,0,0,.2);border-radius:8px;padding:1rem;margin:2rem auto;max-width:100%;text-align:left;overflow-x:auto}.code-example pre{margin:0;color:#e2e8f0;font-size:.8rem;overflow-x:auto;white-space:pre-wrap;word-wrap:break-word}.alert{padding:1rem;border-radius:8px;margin-bottom:1.5rem;border-left:4px solid}.alert-info{background:#ebf8ff;border-color:#4299e1;color:#2c5282}.alert-warning{background:#fffaf0;border-color:#ed8936;color:#7c2d12}.alert-success{background:#f0fff4;border-color:#48bb78;color:#22543d}.alert-error{background:#fff5f5;border:1px solid #fc8181;color:#c53030}.alert.show{display:block}.divider{display:flex;align-items:center;text-align:center;margin:2rem 0}.divider::before,.divider::after{content:'';flex:1;border-bottom:1px solid #e2e8f0}.divider span{padding:0 1rem;color:#718096;font-size:.875rem}.social-buttons{display:flex;gap:1rem;margin-bottom:2rem}.footer{background:#2d3748;color:#e2e8f0;padding:40px 0;text-align:center}.footer-links{display:flex;justify-content:center;gap:2rem;margin-bottom:2rem;flex-wrap:wrap}.footer-links a{color:#e2e8f0;text-decoration:none;transition:color .3s ease}.footer-links a:hover{color:#fff}.footer p{font-size:.9rem;color:#a0aec0}.comparison-table{width:100%;border-collapse:collapse;background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 6px -1px rgba(0,0,0,.1)}.comparison-table th,.comparison-table td{padding:1rem;text-align:center;border-bottom:1px solid #e2e8f0}.comparison-table th{background:#f7fafc;font-weight:600;color:#2d3748}.comparison-table th:first-child,.comparison-table td:first-child{text-align:left;font-weight:500}.comparison-table .featured-col{background:#f7fafc}.check-mark{color:#48bb78;font-weight:bold;font-size:1.2rem}.x-mark{color:#cbd5e0;font-weight:bold;font-size:1.2rem}.param-table{width:100%;border-collapse:collapse;margin:1rem 0}.param-table th,.param-table td{padding:.75rem;text-align:left;border-bottom:1px solid #e2e8f0}.param-table th{background:#f7fafc;font-weight:600;color:#2d3748;font-size:.875rem}.param-table td{color:#4a5568;font-size:.9rem}.param-table code{background:#edf2f7;color:#d53f8c;padding:.2rem .4rem;border-radius:3px;font-family:'Monaco','Consolas',monospace;font-size:.85em}.endpoint-box{background:#fff;border:1px solid #e2e8f0;border-radius:8px;padding:1.5rem;margin:2rem 0;box-shadow:0 2px 4px rgba(0,0,0,.05)}.endpoint-header{display:flex;align-items:center;gap:1rem;margin-bottom:1rem;flex-wrap:wrap}.method{background:#48bb78;color:#fff;padding:.25rem .75rem;border-radius:4px;font-size:.875rem;font-weight:600}.method.post{background:#4299e1}.method.put{background:#ed8936}.method.delete{background:#f56565}.endpoint-url{font-family:'Monaco','Consolas',monospace;color:#2d3748;font-weight:500;font-size:1.1rem}.forgot-password{color:#667eea;text-decoration:none;font-size:.9rem;font-weight:500}.forgot-password:hover{text-decoration:underline}@media screen and (min-width:1024px){.section-header h2{font-size:2.5rem}.section-header p{font-size:1.1rem}.feature-card{padding:2rem}.feature-card h3{font-size:1.3rem}.feature-card p{font-size:1rem}.plan-price{font-size:3rem}.plan-features li{font-size:1rem}}@media screen and (min-width:768px) and (max-width:1023px){.container{padding:0 20px}.code-example{padding:1.25rem}.code-example pre{font-size:.85rem}.features-grid{grid-template-columns:repeat(2,1fr)}.pricing-grid{grid-template-columns:repeat(2,1fr)}}@media screen and (max-width:767px){.container{padding:0 15px}.section-header{margin-bottom:2rem}.section-header h2{font-size:1.75rem}.features-grid{grid-template-columns:1fr;gap:1rem}.feature-card{padding:1.25rem}.pricing-grid{grid-template-columns:1fr}.pricing-card{margin-bottom:1rem}.comparison-table{display:block;overflow-x:auto}.nav-links{gap:1rem;font-size:.9rem}.social-buttons{flex-direction:column}.form-row{flex-direction:column;align-items:flex-start;gap:1rem}.footer-links{flex-direction:column;gap:1rem}}@media screen and (max-width:480px){.container{padding:0 10px}.section-header h2{font-size:1.5rem}.feature-card{padding:1rem}.pricing-card{padding:1.25rem}.plan-price{font-size:2rem}.logo{font-size:1.2rem}.nav-links{display:none}.code-block{padding:1rem;font-size:.8rem}.param-table{font-size:.8rem}}@media print{.header,.footer,.nav-links,.btn{display:none}body{background:#fff;color:#000}}@media(prefers-contrast:more){.feature-card{border:2px solid #000}.pricing-card{border:2px solid #000}}@media(prefers-reduced-motion:reduce){*{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}