*{margin:0;padding:0;box-sizing:border-box}:root{--bg: #0a0a0a;--bg-elevated: #111;--bg-card: #161616;--text: #fafafa;--text-muted: #888;--text-secondary: #a0a0a0;--border: #2a2a2a;--primary: #10b981;--primary-hover: #059669;--secondary: #3b82f6;--error: #ef4444;--success: #22c55e;--warning: #f59e0b;--radius: 8px;--radius-lg: 12px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;line-height:1.6}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}code{font-family:SF Mono,Fira Code,Consolas,monospace;background:var(--bg-elevated);padding:.2em .4em;border-radius:4px;font-size:.9em}.header{border-bottom:1px solid var(--border);position:sticky;top:0;background:#0a0a0ae6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:100}.header-content{max-width:1200px;margin:0 auto;padding:1rem 2rem;display:flex;justify-content:space-between;align-items:center}.logo{font-size:1.5rem;font-weight:700;color:var(--text);text-decoration:none}.nav{display:flex;gap:1.5rem;align-items:center}.nav a{color:var(--text-secondary);text-decoration:none;transition:color .2s}.nav a:hover{color:var(--text);text-decoration:none}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.5rem 1rem;border-radius:var(--radius);font-weight:500;font-size:.9rem;cursor:pointer;border:none;transition:all .2s;text-decoration:none}.btn:hover{text-decoration:none}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover)}.btn-secondary{background:var(--bg-elevated);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover{background:var(--bg-card);border-color:var(--text-muted)}.btn-lg{padding:.75rem 1.5rem;font-size:1rem}.btn-sm{padding:.25rem .5rem;font-size:.8rem}.btn-block{width:100%}.btn-google{background:#fff;color:#333;border:1px solid #ddd;width:100%}.btn-google:hover{background:#f5f5f5}.btn-google svg{flex-shrink:0}.btn:disabled,.btn.disabled{opacity:.5;cursor:not-allowed}.btn-icon{font-size:1.1em}.hero{max-width:800px;margin:0 auto;padding:6rem 2rem;text-align:center}.hero h1{font-size:3.5rem;font-weight:700;line-height:1.1;margin-bottom:1.5rem;background:linear-gradient(135deg,var(--text) 0%,var(--text-secondary) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero-subtitle{font-size:1.25rem;color:var(--text-secondary);margin-bottom:2rem;max-width:600px;margin-left:auto;margin-right:auto}.hero-cta{display:flex;flex-direction:column;align-items:center;gap:.75rem}.cta-note{font-size:.9rem;color:var(--text-muted)}.how-it-works{max-width:1000px;margin:0 auto;padding:4rem 2rem}.how-it-works h2{text-align:center;font-size:2rem;margin-bottom:3rem}.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem}.step{background:var(--bg-card);padding:2rem;border-radius:var(--radius-lg);border:1px solid var(--border)}.step-number{width:40px;height:40px;background:var(--primary);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;margin-bottom:1rem}.step h3{font-size:1.25rem;margin-bottom:.5rem}.step p{color:var(--text-secondary)}.demo-section{max-width:900px;margin:0 auto;padding:4rem 2rem}.demo-section h2{text-align:center;font-size:2rem;margin-bottom:2rem}.code-block{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-lg);overflow-x:auto}.code-block pre{padding:1.5rem;margin:0}.code-block code{background:none;padding:0;font-size:.85rem;line-height:1.6;color:var(--text-secondary)}.features{max-width:1000px;margin:0 auto;padding:4rem 2rem;display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem}.feature{padding:1.5rem}.feature h3{font-size:1.1rem;margin-bottom:.5rem}.feature p{color:var(--text-secondary);font-size:.95rem}.footer{border-top:1px solid var(--border);padding:2rem;margin-top:4rem}.footer-content{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center}.footer p{color:var(--text-muted);font-size:.9rem}.footer nav{display:flex;gap:1.5rem}.footer nav a{color:var(--text-secondary);font-size:.9rem}.dashboard{max-width:1200px;margin:0 auto;padding:2rem}.dashboard-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:3rem;flex-wrap:wrap;gap:1rem}.dashboard-header h1{font-size:2rem;margin-bottom:.25rem}.welcome{color:var(--text-secondary)}.credits-display{background:var(--bg-card);padding:1rem 1.5rem;border-radius:var(--radius-lg);border:1px solid var(--border);display:flex;align-items:center;gap:1rem}.credits-count{font-size:2rem;font-weight:700;color:var(--primary)}.credits-label{color:var(--text-secondary)}.plan-badge{padding:.25rem .5rem;border-radius:4px;font-size:.75rem;font-weight:600;text-transform:uppercase}.plan-free{background:var(--bg-elevated);color:var(--text-secondary)}.plan-pro{background:var(--primary);color:#fff}.upgrade-link{font-size:.9rem}.issue-section{margin-bottom:3rem}.issue-section h2{font-size:1.5rem;margin-bottom:1.5rem}.issue-form{background:var(--bg-card);padding:2rem;border-radius:var(--radius-lg);border:1px solid var(--border)}.form-section{margin-bottom:2rem}.form-section h3{font-size:1rem;color:var(--text-secondary);margin-bottom:1rem}.csv-upload{position:relative}.csv-upload input[type=file]{position:absolute;opacity:0;width:100%;height:100%;cursor:pointer}.csv-label{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:2rem;border:2px dashed var(--border);border-radius:var(--radius);cursor:pointer;transition:all .2s}.csv-label:hover{border-color:var(--primary);background:#10b9810d}.csv-icon{font-size:2rem;margin-bottom:.5rem}.csv-hint{font-size:.85rem;color:var(--text-muted);margin-top:.25rem}.csv-preview{margin-top:1rem}.csv-summary{display:flex;justify-content:space-between;align-items:center;margin-bottom:.5rem;flex-wrap:wrap;gap:.5rem}.recipient-count{color:var(--primary);font-weight:500}.credits-needed{color:var(--text-secondary);font-size:.9rem}.csv-recipients{background:var(--bg-elevated);padding:1rem;border-radius:var(--radius);font-size:.9rem;color:var(--text-secondary)}.csv-recipients .more{color:var(--text-muted);font-style:italic;margin-top:.5rem}.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1rem}.form-group{display:flex;flex-direction:column;gap:.5rem}.form-group label{font-size:.9rem;color:var(--text-secondary)}.form-group input{padding:.75rem;border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-elevated);color:var(--text);font-size:1rem}.form-group input:focus{outline:none;border-color:var(--primary)}.form-group input::placeholder{color:var(--text-muted)}.form-actions{display:flex;align-items:center;gap:1rem;flex-wrap:wrap}.issue-status .success{color:var(--success)}.issue-status .error{color:var(--error)}.certificates-section h2{font-size:1.5rem;margin-bottom:1.5rem}.certificates-list{background:var(--bg-card);border-radius:var(--radius-lg);border:1px solid var(--border);overflow:hidden}.empty-state{padding:3rem;text-align:center;color:var(--text-secondary)}.certificates-table{width:100%;border-collapse:collapse}.certificates-table th,.certificates-table td{padding:1rem;text-align:left;border-bottom:1px solid var(--border)}.certificates-table th{background:var(--bg-elevated);font-weight:500;font-size:.85rem;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em}.certificates-table tr:last-child td{border-bottom:none}.certificates-table tr:hover td{background:var(--bg-elevated)}.verify-page{max-width:900px;margin:0 auto;padding:2rem}.verify-content{text-align:center}.verify-header{margin-bottom:2rem}.status-badge{display:inline-flex;align-items:center;gap:.5rem;padding:.5rem 1rem;border-radius:2rem;font-weight:600;font-size:.9rem;margin-bottom:1rem}.status-verified{background:#22c55e1a;color:var(--success);border:1px solid rgba(34,197,94,.3)}.status-invalid{background:#ef44441a;color:var(--error);border:1px solid rgba(239,68,68,.3)}.status-icon{font-size:1.1em}.verify-header h1{font-size:2.5rem;margin-bottom:.5rem}.course-name{font-size:1.25rem;color:var(--text-secondary)}.certificate-display{background:var(--bg-card);padding:1rem;border-radius:var(--radius-lg);border:1px solid var(--border);margin-bottom:2rem}.certificate-image{max-width:100%;height:auto;border-radius:var(--radius)}.certificate-details{display:flex;justify-content:center;gap:3rem;flex-wrap:wrap;margin-bottom:2rem;text-align:left}.detail{display:flex;flex-direction:column;gap:.25rem}.detail-label{font-size:.85rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em}.detail-value{display:flex;align-items:center;gap:.5rem}.copy-btn{background:none;border:none;cursor:pointer;font-size:1rem;opacity:.7;transition:opacity .2s}.copy-btn:hover{opacity:1}.certificate-actions{display:flex;justify-content:center;gap:1rem;flex-wrap:wrap}.not-found,.error-state{text-align:center;padding:4rem 2rem}.not-found h1,.error-state h1{font-size:2rem;margin:1rem 0}.not-found p,.error-state p{color:var(--text-secondary);margin-bottom:1rem}.hint{font-size:.9rem;color:var(--text-muted)}.verify-lookup{max-width:500px;margin:0 auto;padding:4rem 2rem;text-align:center}.verify-lookup h1{font-size:2rem;margin-bottom:.5rem}.verify-lookup p{color:var(--text-secondary);margin-bottom:2rem}.verify-form{display:flex;gap:.5rem}.verify-form input{flex:1;padding:.75rem 1rem;border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-elevated);color:var(--text);font-size:1rem;font-family:SF Mono,Fira Code,monospace}.verify-form input:focus{outline:none;border-color:var(--primary)}.pricing-page{max-width:1200px;margin:0 auto;padding:2rem}.pricing-header{text-align:center;margin-bottom:3rem}.pricing-header h1{font-size:2.5rem;margin-bottom:.5rem}.pricing-header p{color:var(--text-secondary);font-size:1.1rem}.usage-info{margin-bottom:2rem}.usage-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:1rem 1.5rem;display:flex;align-items:center;justify-content:center;gap:2rem;flex-wrap:wrap}.usage-label{color:var(--text-muted)}.usage-value{font-weight:600;color:var(--primary)}.usage-plan{color:var(--text-secondary)}.pricing-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem;margin-bottom:4rem}.pricing-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:2rem;display:flex;flex-direction:column;position:relative}.pricing-card.featured{border-color:var(--primary);box-shadow:0 0 0 1px var(--primary)}.featured-badge{position:absolute;top:-12px;left:50%;transform:translate(-50%);background:var(--primary);color:#fff;padding:.25rem .75rem;border-radius:1rem;font-size:.75rem;font-weight:600}.plan-name{font-size:1.5rem;font-weight:600;margin-bottom:1rem}.plan-price{margin-bottom:1.5rem}.plan-price .price{font-size:3rem;font-weight:700}.plan-price .period{color:var(--text-secondary)}.plan-features{list-style:none;flex:1;margin-bottom:1.5rem}.plan-features li{display:flex;align-items:center;gap:.75rem;padding:.5rem 0;color:var(--text-secondary)}.plan-features .check{color:var(--success);font-weight:700}.faq-section{padding:2rem 0}.faq-section h2{font-size:1.5rem;margin-bottom:2rem;text-align:center}.faq-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem}.faq-item{background:var(--bg-card);padding:1.5rem;border-radius:var(--radius-lg);border:1px solid var(--border)}.faq-item h3{font-size:1rem;margin-bottom:.5rem}.faq-item p{color:var(--text-secondary);font-size:.95rem}.auth-page{display:flex;align-items:center;justify-content:center;min-height:calc(100vh - 100px);padding:2rem}.auth-card{width:100%;max-width:400px;background:var(--bg-card);padding:2rem;border-radius:var(--radius-lg);border:1px solid var(--border)}.auth-card h1{font-size:1.75rem;margin-bottom:.5rem}.auth-subtitle{color:var(--text-secondary);margin-bottom:1.5rem}.auth-divider{display:flex;align-items:center;gap:1rem;margin:1.5rem 0;color:var(--text-muted);font-size:.9rem}.auth-divider:before,.auth-divider:after{content:"";flex:1;height:1px;background:var(--border)}.auth-form{display:flex;flex-direction:column;gap:1rem}.auth-error{color:var(--error);font-size:.9rem;min-height:1.5rem}.auth-terms{font-size:.8rem;color:var(--text-muted);text-align:center;margin-top:1rem}.auth-switch{text-align:center;margin-top:1.5rem;color:var(--text-secondary);font-size:.95rem}.not-found-page{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:calc(100vh - 100px);text-align:center}.not-found-page h1{font-size:6rem;font-weight:700;color:var(--text-muted);margin-bottom:.5rem}.not-found-page p{color:var(--text-secondary);margin-bottom:2rem}.loading{text-align:center;padding:4rem 2rem;color:var(--text-secondary)}.error{color:var(--error)}.success{color:var(--success)}@media (max-width: 768px){.hero h1{font-size:2.5rem}.header-content{padding:1rem}.dashboard-header{flex-direction:column}.credits-display{width:100%;justify-content:center}.certificate-details{flex-direction:column;gap:1.5rem;align-items:center}.certificate-actions{flex-direction:column}.certificate-actions .btn{width:100%}.verify-form{flex-direction:column}.footer-content{flex-direction:column;gap:1rem;text-align:center}}.legal-page{max-width:800px;margin:0 auto;padding:4rem 2rem}.legal-page h1{font-size:2.5rem;margin-bottom:.5rem}.legal-page .last-updated{color:var(--text-muted);margin-bottom:3rem}.legal-page section{margin-bottom:2.5rem}.legal-page h2{font-size:1.25rem;margin-bottom:1rem;color:var(--text)}.legal-page h3{font-size:1.1rem;margin-bottom:.5rem}.legal-page p{color:var(--text-secondary);margin-bottom:1rem;line-height:1.7}.legal-page ul{color:var(--text-secondary);margin-left:1.5rem;margin-bottom:1rem}.legal-page li{margin-bottom:.5rem}.support-page .support-options{display:flex;gap:2rem;flex-wrap:wrap}.support-page .support-option{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:2rem;flex:1;min-width:280px}.support-page .support-option h3{margin-bottom:1rem}.support-page .response-time{font-size:.875rem;color:var(--text-muted);margin-top:1rem}.support-page .faq-item{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;margin-bottom:1rem}.support-page .faq-item h3{color:var(--text);margin-bottom:.5rem}.support-page .faq-item p{margin-bottom:0}