:root{--cert-primary: #13313B;--cert-bg: #f5f4f0;--cert-surface: #ffffff;--cert-text: #2c2c2c;--cert-text-light: #666666;--cert-border: #e0e0e0;--cert-error: #c0392b;--cert-success: #27ae60}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Geist,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:linear-gradient(135deg,#0f2830,#13313b,#1a4a5a);min-height:100vh;display:flex;align-items:center;justify-content:center;padding:1rem;color:var(--cert-text)}.cert-container{width:100%;max-width:480px}.cert-box{background:var(--cert-surface);border-radius:12px;padding:2.5rem 2rem;box-shadow:0 20px 60px #0000004d}.cert-header{display:flex;align-items:center;gap:1rem;margin-bottom:2rem;padding-bottom:1.5rem;border-bottom:1px solid var(--cert-border)}.cert-logo{width:48px;height:48px;opacity:.9}.cert-header-text{flex:1}.cert-title{font-family:Bodoni Moda SC,serif;font-size:1.5rem;font-weight:400;letter-spacing:.05em;color:var(--cert-primary);margin-bottom:.25rem}.cert-subtitle{font-size:.85rem;color:var(--cert-text-light);font-weight:400}.cert-form{margin-bottom:1.5rem}.cert-field{margin-bottom:1rem}.cert-label{display:block;font-size:.85rem;font-weight:500;color:var(--cert-text);margin-bottom:.5rem}.cert-input{width:100%;padding:.85rem 1rem;font-size:.95rem;font-family:Geist,sans-serif;border:1.5px solid var(--cert-border);border-radius:6px;background:var(--cert-surface);color:var(--cert-text);transition:all .2s ease}.cert-input:focus{outline:none;border-color:var(--cert-primary);box-shadow:0 0 0 3px #13313b1a}.cert-input::-moz-placeholder{color:#aaa}.cert-input::placeholder{color:#aaa}.cert-btn{width:100%;padding:.95rem 1.5rem;font-size:.95rem;font-weight:500;font-family:Geist,sans-serif;color:#f5f4f0;background:var(--cert-primary);border:none;border-radius:6px;cursor:pointer;transition:all .2s ease;display:flex;align-items:center;justify-content:center;gap:.5rem}.cert-btn:hover:not(:disabled){background:#0f2830;transform:translateY(-1px);box-shadow:0 4px 12px #13313b4d}.cert-btn:disabled{opacity:.6;cursor:not-allowed}.cert-loader{display:inline-flex;align-items:center}.cert-error{margin-top:.75rem;padding:.75rem;font-size:.85rem;color:var(--cert-error);background:#c0392b1a;border-radius:6px;display:none}.cert-error.show{display:block}.cert-info{display:flex;gap:.75rem;padding:1rem;background:#13313b0d;border-radius:6px;margin-bottom:1.5rem}.cert-info svg{flex-shrink:0;color:var(--cert-primary);margin-top:.1rem}.cert-info p{font-size:.82rem;line-height:1.5;color:var(--cert-text-light)}.cert-back{display:inline-flex;align-items:center;gap:.5rem;font-size:.85rem;color:var(--cert-text-light);text-decoration:none;transition:color .2s ease}.cert-back:hover{color:var(--cert-primary)}.cert-modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;z-index:9999;display:flex;align-items:center;justify-content:center;padding:1.5rem}.cert-modal{background:#fff;border-radius:10px;width:100%;max-width:900px;max-height:90vh;display:flex;flex-direction:column;overflow:hidden;box-shadow:0 24px 64px #00000038}.cert-modal-header{display:flex;align-items:center;justify-content:space-between;padding:1rem 1.5rem;background:linear-gradient(180deg,#13313b,#0f2830)}.cert-modal-eyebrow{font-family:Bodoni Moda SC,serif;font-size:.75rem;letter-spacing:3px;color:#f5f4f0b3;text-transform:uppercase}.cert-modal-close{background:none;border:none;color:#f5f4f099;font-size:1.5rem;line-height:1;cursor:pointer;padding:0 .25rem;transition:color .15s}.cert-modal-close:hover{color:#f5f4f0}.cert-modal-body{display:grid;grid-template-columns:340px 1fr;flex:1;overflow:hidden}.cert-modal-img-col{background:#f5f4f0;display:flex;flex-direction:column;justify-content:center;align-items:center;overflow:hidden;border-right:1px solid var(--cert-border);position:relative;padding:1.5rem}.cert-modal-img{width:100%;height:100%;-o-object-fit:contain;object-fit:contain;max-height:420px}.cert-modal-watermark{position:absolute;bottom:1rem;left:1rem;right:1rem;padding:.4rem .6rem;background:#fffffff2;border-radius:4px;font-size:.6rem;font-weight:600;letter-spacing:.05em;color:var(--cert-text-light);text-align:center}.cert-modal-info-col{padding:1.5rem 1.75rem 1.25rem;overflow-y:auto;display:flex;flex-direction:column;gap:.7rem}.cert-modal-badges{display:flex;gap:.4rem;flex-wrap:wrap}.cert-badge{font-size:.62rem;font-weight:600;letter-spacing:1.5px;text-transform:uppercase;padding:.25rem .6rem;border-radius:100px;background:var(--cert-border);color:var(--cert-text-light)}.cert-badge--valid{background:#27ae601a;color:#27ae60}.cert-modal-title{font-family:Geist,sans-serif;font-size:1.35rem;font-weight:400;line-height:1.3;color:var(--cert-text);letter-spacing:-.01em}.cert-modal-artist{font-size:.8rem;color:var(--cert-text-light);letter-spacing:.02em;text-transform:uppercase;font-family:Bodoni Moda SC,serif}.cert-modal-divider{height:1px;background:var(--cert-border)}.cert-modal-dl{display:flex;flex-direction:column;gap:.5rem}.cert-dl-row{display:grid;grid-template-columns:100px 1fr;gap:.5rem;font-size:.8rem}.cert-dl-row dt{color:var(--cert-text-light);font-weight:500}.cert-dl-row dd{color:var(--cert-text)}.cert-modal-text{font-size:.8rem;line-height:1.5;color:var(--cert-text);text-align:justify}.cert-modal-text p{margin-bottom:.6rem}.cert-modal-text strong{font-weight:600}.cert-modal-buyer{margin-top:0}.cert-modal-signature{margin-top:auto;padding-top:1rem}.cert-signature-img{display:block;width:100px;height:auto;mix-blend-mode:multiply;opacity:.88;margin-bottom:.1rem;pointer-events:none;-webkit-user-select:none;-moz-user-select:none;user-select:none}.cert-signature-name{font-size:.75rem;color:var(--cert-text-light);margin-bottom:.15rem}.cert-signature-place{font-size:.7rem;color:var(--cert-text-light)}.cert-modal-qrcode{margin-top:1rem;padding-top:1rem;border-top:1px solid var(--cert-border);display:flex;flex-direction:column;align-items:center;gap:.5rem}.cert-modal-qrcode canvas{border:2px solid var(--cert-border);border-radius:4px;padding:.5rem;background:#fff}.cert-qr-label{font-size:.7rem;color:var(--cert-text-light);text-align:center;margin:0}@media (max-width: 768px){.cert-box{padding:2rem 1.5rem}.cert-modal-overlay{padding:0;align-items:flex-start;background:#000c}.cert-modal{height:100dvh;max-height:100dvh;max-width:100vw;border-radius:0;width:100%;overflow-y:auto;-webkit-overflow-scrolling:touch;display:block;box-shadow:none}.cert-modal-header{position:sticky;top:0;z-index:2;padding:1rem 1.25rem}.cert-modal-eyebrow{font-size:.65rem;letter-spacing:2px}.cert-modal-close{font-size:1.75rem;padding:0 .25rem;opacity:.8}.cert-modal-body{display:flex;flex-direction:column;overflow:visible;flex:none}.cert-modal-img-col{flex-shrink:0;height:42vh;min-height:200px;max-height:42vh;border-right:none;border-bottom:2px solid var(--cert-border);padding:1.25rem 1.25rem 2.5rem;overflow:hidden;background:#f0ede8}.cert-modal-img{max-height:100%;max-width:100%;width:auto;height:100%;-o-object-fit:contain;object-fit:contain;display:block;margin:0 auto}.cert-modal-watermark{position:absolute;bottom:.5rem;left:50%;transform:translate(-50%);white-space:nowrap;font-size:.55rem;padding:.25rem .5rem;background:#ffffffd9;color:#999;border-radius:3px;letter-spacing:.04em}.cert-modal-info-col{overflow-y:visible;flex:none;padding:1.5rem 1.25rem 3.5rem;gap:.85rem;display:flex;flex-direction:column}.cert-modal-badges{margin-bottom:.25rem}.cert-badge{font-size:.6rem;padding:.2rem .65rem;letter-spacing:1px}.cert-modal-title{font-size:1.3rem;line-height:1.25;margin-top:.25rem}.cert-modal-artist{font-size:.75rem;margin-top:.1rem}.cert-modal-divider{margin:.1rem 0}.cert-modal-dl{gap:0}.cert-dl-row{grid-template-columns:1fr;gap:.1rem;padding:.4rem 0;border-bottom:1px solid var(--cert-border)}.cert-dl-row:last-child{border-bottom:none}.cert-dl-row dt{font-size:.65rem;text-transform:uppercase;letter-spacing:.06em;color:#999;font-weight:600}.cert-dl-row dd{font-size:.9rem;margin-bottom:.25rem}.cert-modal-text{font-size:.82rem;line-height:1.6}.cert-modal-signature{margin-top:1rem;padding-top:.75rem}.cert-signature-line{width:100px}.cert-signature-img{width:120px}.cert-signature-name{font-size:.8rem}.cert-signature-place{font-size:.75rem}}@media (max-width: 480px){body{padding:.5rem}.cert-box{padding:1.5rem 1rem}.cert-title{font-size:1.25rem}}