*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:#f5f5f5;color:#333}#app{min-height:100vh}.auth-prompt{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;padding:2rem;text-align:center}.auth-prompt h1{margin-bottom:1rem;font-size:2rem}.auth-prompt p{margin-bottom:2rem;color:#666}.auth-button{display:inline-block;padding:.75rem 1.5rem;background:#0061ff;color:#fff;text-decoration:none;border-radius:4px;font-weight:500}.auth-button:hover{background:#0052cc}.app{max-width:1400px;margin:0 auto;padding:2rem}.app-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;padding-bottom:1rem;border-bottom:2px solid #ddd}.app-header h1{font-size:1.5rem}.filter-toggle{display:flex;gap:.5rem}.filter-btn{padding:.5rem 1rem;background:#fff;border:2px solid #ddd;border-radius:4px;cursor:pointer;font-size:.875rem;font-weight:500;transition:all .2s}.filter-btn:hover{border-color:#0061ff}.filter-btn.active{background:#0061ff;color:#fff;border-color:#0061ff}.header-controls{display:flex;gap:1rem;align-items:center}.cart-btn-floating{position:fixed;bottom:1.5rem;right:1.5rem;padding:.75rem 1rem;background:#fff;border:2px solid #0061ff;border-radius:8px;cursor:pointer;font-size:1.25rem;transition:all .2s;display:flex;align-items:center;justify-content:center;z-index:1500;box-shadow:0 2px 8px #00000026}.cart-btn-floating:hover{background:#0061ff;transform:scale(1.05)}.cart-btn-floating:hover .cart-icon{color:#fff}.cart-btn-floating .cart-icon{color:#0061ff;transition:color .2s}.cart-btn-floating .cart-badge{position:absolute;top:-.5rem;right:-.5rem;min-width:1.5rem;height:1.5rem;background:#d32f2f;color:#fff;font-size:.875rem;font-weight:700;border-radius:50%;display:flex;align-items:center;justify-content:center;padding:0 .25rem;box-shadow:0 2px 4px #0003}.cart-panel{position:fixed;top:0;right:-400px;width:400px;max-width:90vw;height:100vh;background:#fff;box-shadow:-4px 0 20px #00000026;z-index:2000;display:flex;flex-direction:column;transition:right .3s ease-in-out}.cart-panel.open{right:0}.cart-panel-header{display:flex;justify-content:space-between;align-items:center;padding:1rem 1.5rem;border-bottom:1px solid #ddd}.cart-panel-header h2{margin:0;font-size:1.25rem}.cart-panel-close{background:none;border:none;font-size:2rem;cursor:pointer;color:#666;line-height:1;padding:0}.cart-panel-close:hover{color:#333}.cart-panel-content{flex:1;overflow-y:auto;padding:1rem}.cart-empty{text-align:center;color:#666;padding:2rem}.cart-item{display:flex;align-items:center;gap:.75rem;padding:.75rem;border-radius:8px;background:#f5f5f5;margin-bottom:.5rem}.cart-item-thumb{width:48px;height:48px;border-radius:4px;background-color:#ddd;flex-shrink:0;overflow:hidden}.cart-item-thumb img{width:100%;height:100%;object-fit:cover}.cart-item-info{flex:1;min-width:0}.cart-item-name{font-size:.875rem;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.cart-item-size{font-size:.75rem;color:#666}.cart-item-remove{background:none;border:none;font-size:1.5rem;cursor:pointer;color:#999;padding:0;line-height:1}.cart-item-remove:hover{color:#d32f2f}.cart-panel-footer{padding:1rem 1.5rem;border-top:1px solid #ddd;display:flex;flex-direction:column;gap:.75rem}.cart-total{font-weight:500;text-align:center}.cart-download-btn{padding:.75rem 1.5rem;background:#0061ff;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:1rem;font-weight:500}.cart-download-btn:hover{background:#0052cc}.cart-clear-btn{padding:.5rem;background:none;color:#666;border:none;cursor:pointer;font-size:.875rem;text-decoration:underline}.cart-clear-btn:hover{color:#d32f2f}.download-modal{position:fixed;inset:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:3000}.download-modal-content{background:#fff;border-radius:12px;padding:2rem;width:400px;max-width:90vw;text-align:center}.download-modal-content h3{margin:0 0 1rem}.download-progress-text{margin-bottom:1rem;color:#666}.download-progress-track{height:8px;background:#e0e0e0;border-radius:4px;overflow:hidden;margin-bottom:1.5rem}.download-progress-bar{height:100%;background:#0061ff;border-radius:4px;transition:width .3s ease}.download-cancel-btn{padding:.5rem 1.5rem;background:none;border:2px solid #ddd;border-radius:4px;cursor:pointer;font-size:.875rem}.download-cancel-btn:hover{border-color:#d32f2f;color:#d32f2f}.loading,.error{text-align:center;padding:3rem;font-size:1.25rem}.error{color:#d32f2f}.photo-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:1rem}.month-header{grid-column:1 / -1;position:sticky;top:0;z-index:100;background:linear-gradient(to bottom,#f5f5f5,#e8e8e8);border-bottom:2px solid #ccc;padding:.75rem 1rem;margin-bottom:.5rem;display:flex;justify-content:space-between;align-items:center;font-weight:600;font-size:1.125rem;box-shadow:0 2px 4px #0000001a}.month-header-title{color:#333;font-size:1.125rem;font-weight:600}.month-header-count{color:#666;font-size:.875rem;font-weight:500}.photo-thumbnail{position:relative;aspect-ratio:1;overflow:hidden;border-radius:8px;cursor:pointer;background:#e0e0e0}.photo-thumbnail img{width:100%;height:100%;object-fit:cover;transition:transform .2s}.photo-thumbnail:hover img{transform:scale(1.05)}.thumbnail-select{position:absolute;top:.5rem;left:.5rem;width:1.5rem;height:1.5rem;background:#fffc;border:2px solid rgba(0,0,0,.3);border-radius:4px;cursor:pointer;z-index:10;display:flex;align-items:center;justify-content:center;font-size:1rem;font-weight:700;color:#0061ff;opacity:0;transition:opacity .2s,background-color .2s}.photo-thumbnail:hover .thumbnail-select,.thumbnail-select.selected{opacity:1}.thumbnail-select.selected{background:#0061ff;border-color:#0061ff;color:#fff}.thumbnail-select:hover{background:#fff;border-color:#0061ff}.thumbnail-select.selected:hover{background:#0052cc;border-color:#0052cc}.thumbnail-star{position:absolute;top:.5rem;right:.5rem;background:#000000b3;color:gold;font-size:1.25rem;padding:.25rem .5rem;border-radius:4px;pointer-events:none;z-index:10}.video-play-button{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:4rem;height:4rem;pointer-events:none;z-index:5;transition:opacity .2s;opacity:.9}.photo-thumbnail:hover .video-play-button{opacity:1}.video-play-button svg{width:100%;height:100%;filter:drop-shadow(0 2px 4px rgba(0,0,0,.3))}.lightbox{position:fixed;inset:0;background:#000000e6;display:none;align-items:center;justify-content:center;z-index:1000}.lightbox-content{position:relative;display:flex;align-items:center;justify-content:center;max-width:90vw;max-height:90vh}.lightbox-image,.lightbox-video{width:90vw;height:90vh;object-fit:contain;display:none}.lightbox-loading{color:#fff;font-size:1.5rem;padding:2rem}.lightbox-close{position:absolute;top:1rem;right:1rem;background:#fff;border:none;padding:0;border-radius:4px;cursor:pointer;font-size:2rem;line-height:0;width:3rem;height:3rem;z-index:1001;display:flex;align-items:center;justify-content:center}.lightbox-close:hover{background:#f0f0f0}.lightbox-select{position:absolute;top:1rem;right:9rem;background:#fff;border:none;padding:0;border-radius:4px;cursor:pointer;font-size:1.75rem;line-height:0;width:3rem;height:3rem;z-index:1001;transition:transform .2s,background-color .2s;display:flex;align-items:center;justify-content:center;color:#0061ff}.lightbox-select:hover{background:#f0f0f0;transform:scale(1.1)}.lightbox-select.selected{background:#0061ff;color:#fff}.lightbox-select.selected:hover{background:#0052cc}.lightbox-star{position:absolute;top:1rem;right:5rem;background:#fff;border:none;padding:0;border-radius:4px;cursor:pointer;font-size:1.75rem;line-height:0;width:3rem;height:3rem;z-index:1001;transition:transform .2s;display:flex;align-items:center;justify-content:center;color:gold}.lightbox-star:hover{background:#f0f0f0;transform:scale(1.1)}.lightbox-nav{position:absolute;top:50%;transform:translateY(-50%);background:#fff;border:none;padding:0;border-radius:4px;cursor:pointer;font-size:2.5rem;line-height:0;z-index:1001;width:3rem;height:3rem;display:flex;align-items:center;justify-content:center}.lightbox-nav:hover{background:#f0f0f0}.lightbox-prev{left:1rem}.lightbox-next{right:1rem}.exif-progress{background:#fff3cd;border:1px solid #ffc107;border-radius:4px;padding:1rem;margin-bottom:1rem;text-align:center}.exif-progress-text{color:#856404;font-size:.875rem}.exif-refresh-link{margin-left:1rem;color:#0061ff;text-decoration:underline;cursor:pointer}.exif-refresh-link:hover{color:#0052cc}@media(max-width:480px){.app{padding:1rem}.photo-grid{grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:.5rem}.app-header{flex-direction:column;gap:1rem;align-items:stretch}.filter-buttons{justify-content:center}}