.loading-container{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:60vh;gap:1.5rem}.loading-spinner{width:60px;height:60px;border:4px solid rgba(212,175,55,.2);border-top-color:var(--accent-gold);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-text{color:var(--text-secondary);font-size:1.2rem;font-weight:300}.double-face{position:relative;left:-.125rem;bottom:-.5rem}.face{position:absolute}.face-one{z-index:2}.face-two{z-index:1;top:-1.125rem;right:.625rem}.flip-container{perspective:1200px;width:140px;height:196px;cursor:pointer;transition:transform .2s ease}.flip-container:hover{transform:translateY(-8px) scale(1.05)}.flip-container:hover .front img,.flip-container:hover .back img{box-shadow:var(--shadow-glow)}.flipper{position:relative;width:100%;height:100%;transition:transform .7s cubic-bezier(.4,0,.2,1);transform-style:preserve-3d}.flip-container.flipped .flipper{transform:rotateY(180deg)}.front,.back{position:absolute;width:100%;height:100%;backface-visibility:hidden;border-radius:.5rem;overflow:hidden}.front{z-index:2;transform:rotateY(0)}.back{transform:rotateY(180deg)}.front img,.back img{width:100%;height:100%;object-fit:contain;object-position:center;display:block;border-radius:.5rem;transition:all .3s ease;box-shadow:var(--shadow-md);image-rendering:-webkit-optimize-contrast;image-rendering:crisp-edges;image-rendering:high-quality;-webkit-backface-visibility:hidden;backface-visibility:hidden;transform:translateZ(0)}.front img{border:2px solid rgba(212,175,55,.3)}.back img{border:2px solid rgba(74,144,226,.3);filter:brightness(.95)}.card-preview{position:fixed;z-index:1000;pointer-events:none;width:350px;max-width:90vw;animation:previewFadeIn .2s ease-out;filter:drop-shadow(0 10px 40px rgba(0,0,0,.6));display:flex;flex-direction:column;gap:1rem}.preview-image-container{width:100%;height:490px;flex-shrink:0}.preview-image-container img{width:100%;height:100%;object-fit:contain;border-radius:.5rem;border:3px solid var(--accent-gold);box-shadow:var(--shadow-lg),0 0 30px #d4af3766;background:var(--bg-primary)}.preview-info{background:linear-gradient(135deg,#1a1f2efa,#0f1419fa);backdrop-filter:blur(10px);border:2px solid rgba(212,175,55,.3);border-radius:.5rem;padding:1rem;box-shadow:var(--shadow-md);display:flex;flex-direction:column;gap:.75rem}.info-item{display:flex;justify-content:space-between;align-items:center;gap:1rem}.info-label{color:var(--text-secondary);font-size:.9rem;font-weight:500;text-transform:uppercase;letter-spacing:.05em}.info-value{color:var(--text-primary);font-size:1rem;font-weight:600;text-align:right;flex:1}.info-loading{color:var(--text-secondary);font-size:.9rem;text-align:center;padding:.5rem;font-style:italic}@keyframes previewFadeIn{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}@media (max-width: 768px){.card-preview{width:250px}.preview-image-container{height:350px}.preview-info{padding:.75rem;gap:.5rem}.info-label{font-size:.8rem}.info-value{font-size:.9rem}}.error-container{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:60vh;gap:1.5rem;padding:2rem}.error-icon{font-size:4rem;filter:drop-shadow(0 0 10px rgba(255,0,0,.3))}.error-message{color:var(--text-secondary);font-size:1.2rem;text-align:center;max-width:500px}@media (max-width: 768px){.main-title{font-size:2.5rem}.subtitle{font-size:1rem}.flip-container{width:100px;height:140px}.flip-container:hover{transform:translateY(-4px) scale(1.03)}.app-header{padding:1.5rem 0}.header-content{padding:0 1rem}}