:root{--primary-color:#2563eb;--primary-hover:#1d4ed8;--bg-dark:#0f172a;--bg-card:#1e293b;--text-primary:#f8fafc;--text-secondary:#94a3b8;--border-color:#334155;--success-color:#22c55e;--error-color:#ef4444}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:linear-gradient(135deg,var(--bg-dark) 0,#1a1a2e 100%);color:var(--text-primary);min-height:100vh}.container{max-width:1200px;margin:0 auto;padding:2rem}.card{background:var(--bg-card);border-radius:16px;padding:2rem;border:1px solid var(--border-color);box-shadow:0 4px 24px rgba(0,0,0,.3)}h1{font-size:2.5rem;font-weight:700;background:linear-gradient(135deg,#60a5fa,#a78bfa);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:.5rem}h2{font-size:1.5rem;color:var(--text-primary);margin-bottom:1rem}.upload-zone{border:2px dashed var(--border-color);border-radius:12px;padding:3rem;text-align:center;cursor:pointer;transition:all .3s ease;background:rgba(37,99,235,.05)}.upload-zone:hover{border-color:var(--primary-color);background:rgba(37,99,235,.1)}.upload-zone.dragover{border-color:var(--success-color);background:rgba(34,197,94,.1)}.upload-icon{font-size:3rem;margin-bottom:1rem}.upload-text{margin-bottom:.5rem}.upload-hint,.upload-text{color:var(--text-secondary)}.upload-hint{font-size:.875rem;opacity:.7}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.75rem 1.5rem;font-size:1rem;font-weight:500;border-radius:8px;border:none;cursor:pointer;transition:all .2s ease}.btn-primary{background:var(--primary-color);color:white}.btn-primary:hover{background:var(--primary-hover);transform:translateY(-1px)}.btn-primary:disabled{background:var(--border-color);cursor:not-allowed;transform:none}.btn-secondary{background:transparent;color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary:hover{background:rgba(255,255,255,.05)}.template-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));grid-gap:1rem;gap:1rem;margin:1.5rem 0}.template-card{background:rgba(255,255,255,.05);border:2px solid var(--border-color);border-radius:12px;padding:1.5rem;text-align:center;cursor:pointer;transition:all .2s ease}.template-card:hover{border-color:var(--primary-color);background:rgba(37,99,235,.1)}.template-card.active{border-color:var(--primary-color);background:rgba(37,99,235,.15)}.template-name{font-weight:600;margin-bottom:.25rem}.template-desc{font-size:.875rem;color:var(--text-secondary)}.preview-container{display:grid;grid-template-columns:1fr 300px;grid-gap:2rem;gap:2rem;margin-top:2rem}@media (max-width:900px){.preview-container{grid-template-columns:1fr}}.preview-image{max-width:100%;border-radius:8px;box-shadow:0 4px 24px rgba(0,0,0,.4)}.exif-panel{background:rgba(255,255,255,.03);border-radius:12px;padding:1.5rem}.exif-item{display:flex;justify-content:space-between;padding:.75rem 0;border-bottom:1px solid var(--border-color)}.exif-item:last-child{border-bottom:none}.exif-label{color:var(--text-secondary)}.exif-value{font-weight:500}.loading{display:flex;align-items:center;justify-content:center;gap:.5rem;padding:2rem;color:var(--text-secondary)}.spinner{width:24px;height:24px;border:3px solid var(--border-color);border-top-color:var(--primary-color);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}.download-group{display:flex;gap:1rem;margin-top:1.5rem}.format-select{display:flex;gap:.5rem;margin-bottom:1rem}.format-btn{padding:.5rem 1rem;border-radius:6px;border:1px solid var(--border-color);background:transparent;color:var(--text-primary);cursor:pointer;transition:all .2s}.format-btn.active{background:var(--primary-color);border-color:var(--primary-color)}