*{margin:0;padding:0;box-sizing:border-box}:root{--bg-color: #ffffff;--text-color: #333333;--border-color: #e0e0e0;--primary-color: #4285f4;--hover-color: #357ae8;--card-bg: #ffffff;--shadow: 0 2px 8px rgba(0, 0, 0, .1);--shadow-hover: 0 4px 16px rgba(0, 0, 0, .15)}@media (prefers-color-scheme: dark){:root{--bg-color: #1a1a1a;--text-color: #e0e0e0;--border-color: #333333;--primary-color: #5a9ef4;--hover-color: #4a8ee4;--card-bg: #2a2a2a;--shadow: 0 2px 8px rgba(0, 0, 0, .3);--shadow-hover: 0 4px 16px rgba(0, 0, 0, .4)}}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background-color:var(--bg-color);color:var(--text-color);line-height:1.6}#app{max-width:1400px;margin:0 auto;padding:20px}header{display:flex;justify-content:space-between;align-items:center;margin-bottom:30px;padding-bottom:20px;border-bottom:2px solid var(--border-color)}header h1{font-size:2rem;font-weight:600}.header-actions{display:flex;gap:10px}.upload-btn,.clear-btn,.share-btn{padding:10px 20px;background-color:var(--primary-color);color:#fff;border:none;border-radius:8px;cursor:pointer;font-size:1rem;font-weight:500;transition:background-color .2s;display:inline-block}.upload-btn:hover,.clear-btn:hover,.share-btn:hover{background-color:var(--hover-color)}.clear-btn{background-color:#dc3545}.clear-btn:hover{background-color:#c82333}.share-btn{background-color:#9c27b0}.share-btn:hover{background-color:#7b1fa2}.drop-zone{border:3px dashed var(--border-color);border-radius:12px;padding:60px 20px;text-align:center;margin-bottom:30px;cursor:pointer;transition:all .3s;background-color:var(--card-bg)}.drop-zone:hover,.drop-zone.dragover{border-color:var(--primary-color);background-color:#4285f40d}.drop-zone p{font-size:1.2rem;color:var(--text-color)}.tabs{display:flex;gap:10px;margin-bottom:30px;border-bottom:2px solid var(--border-color)}.tab-btn{padding:12px 24px;background:none;border:none;border-bottom:3px solid transparent;color:var(--text-color);font-size:1rem;font-weight:500;cursor:pointer;transition:all .2s}.tab-btn:hover{color:var(--primary-color)}.tab-btn.active{color:var(--primary-color);border-bottom-color:var(--primary-color)}.tab-content{display:none}.tab-content.active{display:block}.loading{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px 20px;gap:20px}.spinner{width:50px;height:50px;border:4px solid var(--border-color);border-top-color:var(--primary-color);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.empty-message{text-align:center;padding:60px 20px;font-size:1.2rem;color:#999}.year-section{margin-bottom:50px}.year-header{font-size:2rem;font-weight:600;margin-bottom:30px;padding-bottom:10px;border-bottom:2px solid var(--border-color)}.month-section{margin-bottom:40px}.month-header{font-size:1.5rem;font-weight:500;margin-bottom:15px;color:var(--primary-color)}.zip-download-btn{margin-bottom:20px;padding:8px 16px;background-color:#28a745;color:#fff;border:none;border-radius:6px;cursor:pointer;font-size:.9rem;transition:background-color .2s}.zip-download-btn:hover{background-color:#218838}.photo-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:20px;margin-bottom:30px}.photo-card{background-color:var(--card-bg);border-radius:12px;overflow:hidden;box-shadow:var(--shadow);cursor:pointer;transition:transform .2s,box-shadow .2s}.photo-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}.photo-card img{width:100%;height:200px;object-fit:cover;display:block}.photo-info{padding:12px}.photo-date{font-size:.9rem;font-weight:500;margin-bottom:6px;color:var(--text-color)}.photo-model{font-size:.8rem;color:#666}@media (prefers-color-scheme: dark){.photo-model{color:#999}}.photo-modal{position:fixed;top:0;left:0;width:100%;height:100%;background-color:#000000e6;display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px}.modal-content{position:relative;max-width:90vw;max-height:90vh;background-color:var(--card-bg);border-radius:12px;padding:20px;overflow-y:auto}.modal-close{position:absolute;top:10px;right:20px;font-size:2rem;color:var(--text-color);cursor:pointer;line-height:1;z-index:1001}.modal-close:hover{color:var(--primary-color)}.modal-content img{max-width:100%;max-height:70vh;display:block;margin:0 auto 20px;border-radius:8px}.modal-info{color:var(--text-color)}.modal-info p{margin-bottom:8px}.map-link{color:#4285f4;text-decoration:none;font-weight:500;display:inline-block;margin-top:4px}.map-link:hover{text-decoration:underline}.mini-map{width:100%;height:250px;margin-top:15px;border-radius:8px;overflow:hidden;box-shadow:var(--shadow);border:2px solid var(--border-color)}#map-view{width:100%;height:600px;border-radius:12px;overflow:hidden;box-shadow:var(--shadow)}.map-popup{text-align:center}.map-popup img{max-width:200px;max-height:200px;border-radius:8px;margin-bottom:8px}.map-popup p{margin:4px 0;font-size:.9rem}@media (max-width: 768px){header{flex-direction:column;align-items:flex-start;gap:15px}header h1{font-size:1.5rem}.photo-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:15px}.year-header{font-size:1.5rem}.month-header{font-size:1.2rem}#map-view{height:400px}}.features-section{max-width:1200px;margin:60px auto;padding:40px 20px}.features-section h2{font-size:2rem;margin-bottom:40px;text-align:center;color:var(--text-color)}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:25px}.feature-card{background-color:var(--card-bg);border-radius:12px;padding:25px;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s}.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}.feature-card h3{font-size:1.3rem;margin-bottom:12px;color:var(--primary-color)}.feature-card p{color:var(--text-color);line-height:1.8;margin:0}.guide-section{max-width:1000px;margin:60px auto;padding:40px 20px;background-color:var(--card-bg);border-radius:12px}.guide-section h2{font-size:2rem;margin-bottom:40px;text-align:center;color:var(--text-color)}.guide-steps{display:flex;flex-direction:column;gap:30px}.guide-step{display:flex;gap:20px;align-items:flex-start}.step-number{flex-shrink:0;width:50px;height:50px;border-radius:50%;background-color:var(--primary-color);color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:700}.step-content{flex:1}.step-content h3{font-size:1.3rem;margin-bottom:10px;color:var(--text-color)}.step-content p{color:var(--text-color);line-height:1.8;margin:0}.faq-section{max-width:1000px;margin:60px auto;padding:40px 20px}.faq-section h2{font-size:2rem;margin-bottom:30px;text-align:center;color:var(--text-color)}.faq-list{display:flex;flex-direction:column;gap:20px}.faq-item{background-color:var(--card-bg);border-radius:12px;padding:25px;box-shadow:var(--shadow);transition:box-shadow .2s}.faq-item:hover{box-shadow:var(--shadow-hover)}.faq-item h3{font-size:1.2rem;margin-bottom:12px;color:var(--primary-color)}.faq-item p{color:var(--text-color);line-height:1.8;margin:0}.footer{background-color:var(--card-bg);border-top:2px solid var(--border-color);margin-top:60px;padding:40px 20px 20px}.footer-content{max-width:1200px;margin:0 auto 30px;display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:40px}.footer-section h3{font-size:1.2rem;margin-bottom:15px;color:var(--text-color)}.footer-section p{color:var(--text-color);line-height:1.8;margin:0}.footer-section ul{list-style:none;padding:0;margin:0}.footer-section ul li{margin-bottom:10px}.footer-section a{color:var(--text-color);text-decoration:none;transition:color .2s}.footer-section a:hover{color:var(--primary-color)}.footer-bottom{max-width:1200px;margin:0 auto;padding-top:20px;border-top:1px solid var(--border-color);text-align:center;color:var(--text-color)}.footer-bottom p{margin:0;font-size:.9rem}.footer-bottom a{color:var(--primary-color);text-decoration:none}.footer-bottom a:hover{text-decoration:underline}@media (max-width: 768px){.features-section,.guide-section,.faq-section{margin:40px auto;padding:20px}.features-section h2,.guide-section h2,.faq-section h2{font-size:1.5rem}.features-grid{grid-template-columns:1fr}.guide-step{flex-direction:column;text-align:center}.step-number{margin:0 auto}.footer-content{grid-template-columns:1fr;gap:30px}}.share-sheet{position:fixed;top:0;left:0;width:100%;height:100%;z-index:2000;display:flex;align-items:flex-end;justify-content:center;opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s}.share-sheet.active{opacity:1;visibility:visible}.share-sheet-backdrop{position:absolute;top:0;left:0;width:100%;height:100%;background-color:#00000080;cursor:pointer}.share-sheet-content{position:relative;background-color:var(--card-bg);border-radius:20px 20px 0 0;width:100%;max-width:600px;max-height:80vh;padding:0;z-index:2001;transform:translateY(100%);transition:transform .3s ease-out;overflow-y:auto;box-shadow:0 -4px 20px #0003}.share-sheet.active .share-sheet-content{transform:translateY(0)}.share-sheet-header{display:flex;justify-content:space-between;align-items:center;padding:20px;border-bottom:1px solid var(--border-color);position:sticky;top:0;background-color:var(--card-bg);z-index:10}.share-sheet-header h2{margin:0;font-size:1.5rem;color:var(--text-color)}.share-close-btn{background:none;border:none;font-size:2rem;color:var(--text-color);cursor:pointer;padding:0;width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:background-color .2s}.share-close-btn:hover{background-color:var(--border-color)}.share-preview{padding:20px;text-align:center;border-bottom:1px solid var(--border-color)}.share-preview-content{display:inline-block;max-width:100%;border-radius:8px;overflow:hidden;box-shadow:var(--shadow)}.share-options{padding:20px;display:grid;grid-template-columns:repeat(2,1fr);gap:15px}.share-option-btn{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;padding:20px;background-color:var(--card-bg);border:2px solid var(--border-color);border-radius:12px;cursor:pointer;transition:all .2s;font-size:.9rem;color:var(--text-color)}.share-option-btn:hover{border-color:var(--primary-color);background-color:#4285f41a;transform:translateY(-2px);box-shadow:var(--shadow)}.share-icon{font-size:2rem;display:flex;align-items:center;justify-content:center;width:40px;height:40px}.share-icon svg{width:100%;height:100%;max-width:40px;max-height:40px}.share-icon-kakao svg{border-radius:8px}.share-icon-insta svg{border-radius:8px}.share-icon-twitter svg{border-radius:50%}.share-icon-facebook svg{border-radius:50%}.share-message{padding:20px;border-top:1px solid var(--border-color)}.share-message h3{margin:0 0 15px;font-size:1.1rem;color:var(--text-color)}.share-message-text{background-color:var(--bg-color);padding:15px;border-radius:8px;margin-bottom:15px;white-space:pre-wrap;word-break:break-word;color:var(--text-color);border:1px solid var(--border-color);font-size:.9rem;line-height:1.6}.share-copy-message-btn{width:100%;padding:12px;background-color:var(--primary-color);color:#fff;border:none;border-radius:8px;cursor:pointer;font-size:1rem;font-weight:500;transition:background-color .2s}.share-copy-message-btn:hover{background-color:var(--hover-color)}.share-instagram-hint{margin-top:15px;padding:12px;background-color:#9c27b01a;border-left:4px solid #9c27b0;border-radius:4px;font-size:.85rem;color:var(--text-color);line-height:1.6}@media (max-width: 768px){.share-sheet-content{max-height:85vh}.share-options{grid-template-columns:repeat(2,1fr);gap:10px}.share-option-btn{padding:15px;font-size:.8rem}.share-icon{font-size:1.5rem;width:32px;height:32px}.share-icon svg{max-width:32px;max-height:32px}}