*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh}.app{min-height:100vh;padding:20px}.container{max-width:1200px;margin:0 auto}.header{text-align:center;color:#fff;margin-bottom:40px;padding:40px 20px}.header h1{font-size:3rem;margin-bottom:10px;text-shadow:2px 2px 4px rgba(0,0,0,.2)}.header .subtitle{font-size:1.2rem;opacity:.9}.upload-section{background:#fff;border-radius:20px;padding:40px;box-shadow:0 10px 40px #0000001a;margin-bottom:30px}.upload-area{border:3px dashed #667eea;border-radius:15px;padding:60px 20px;text-align:center;cursor:pointer;transition:all .3s ease;background:#f8f9ff}.upload-area:hover{border-color:#764ba2;background:#f0f2ff;transform:translateY(-2px)}.upload-area.dragover{border-color:#764ba2;background:#e8ebff;transform:scale(1.02)}.upload-icon{font-size:4rem;margin-bottom:20px}.upload-text{font-size:1.3rem;color:#333;margin-bottom:10px}.upload-hint{color:#666;font-size:.9rem}.preview-section{margin-top:30px}.preview-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:15px;margin-bottom:20px}.preview-item{position:relative;border-radius:10px;overflow:hidden;aspect-ratio:1}.preview-item img{width:100%;height:100%;object-fit:cover}.remove-btn{position:absolute;top:5px;right:5px;background:#f00c;color:#fff;border:none;border-radius:50%;width:30px;height:30px;cursor:pointer;font-size:1.2rem;display:flex;align-items:center;justify-content:center;transition:all .3s ease}.remove-btn:hover{background:red;transform:scale(1.1)}.context-section{margin-top:30px}.context-section label{display:block;margin-bottom:10px;font-weight:600;color:#333}.context-textarea{width:100%;min-height:100px;padding:15px;border:2px solid #e0e0e0;border-radius:10px;font-size:1rem;resize:vertical;font-family:inherit;transition:border-color .3s ease}.context-textarea:focus{outline:none;border-color:#667eea}.style-section{margin-top:30px}.style-section label{display:block;margin-bottom:10px;font-weight:600;color:#333}.style-buttons{display:flex;gap:10px}.style-btn{flex:1;padding:15px;border:2px solid #e0e0e0;background:#fff;border-radius:10px;cursor:pointer;font-size:1rem;font-weight:600;transition:all .3s ease}.style-btn:hover{border-color:#667eea;background:#f8f9ff}.style-btn.active{border-color:#667eea;background:#667eea;color:#fff}.generate-section{margin-top:30px;text-align:center}.generate-btn{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;padding:18px 60px;border-radius:50px;font-size:1.2rem;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:0 5px 20px #667eea66}.generate-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 25px #667eea80}.generate-btn:disabled{opacity:.6;cursor:not-allowed}.loading{text-align:center;padding:40px;color:#fff}.spinner{border:4px solid rgba(255,255,255,.3);border-top:4px solid white;border-radius:50%;width:50px;height:50px;animation:spin 1s linear infinite;margin:0 auto 20px}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.result-section{background:#fff;border-radius:20px;padding:40px;box-shadow:0 10px 40px #0000001a;margin-top:30px}.result-images{margin:30px 0}.image-gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px;margin-bottom:30px}.gallery-item{position:relative;border-radius:15px;overflow:hidden;box-shadow:0 5px 15px #0000001a;transition:transform .3s ease,box-shadow .3s ease}.gallery-item:hover{transform:translateY(-5px);box-shadow:0 8px 25px #00000026}.gallery-item img{width:100%;height:auto;display:block;object-fit:cover}.result-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:30px;padding-bottom:20px;border-bottom:2px solid #e0e0e0}.result-title{font-size:2rem;color:#333}.action-buttons{display:flex;gap:10px}.action-btn{padding:10px 20px;border:2px solid #667eea;background:#fff;color:#667eea;border-radius:8px;cursor:pointer;font-weight:600;transition:all .3s ease}.action-btn:hover{background:#667eea;color:#fff}.action-btn.naver-btn{background:#03c75a;color:#fff;border-color:#03c75a}.action-btn.naver-btn:hover{background:#02b350;border-color:#02b350}.action-btn:disabled{opacity:.6;cursor:not-allowed}.result-content{line-height:1.8;color:#333}.result-content h1,.result-content h2,.result-content h3{margin-top:30px;margin-bottom:15px;color:#667eea}.result-content p{margin-bottom:15px}.result-content img{max-width:100%;border-radius:10px;margin:20px 0}.result-meta{margin-top:30px;padding-top:20px;border-top:2px solid #e0e0e0}.keywords{display:flex;flex-wrap:wrap;gap:10px;margin-top:10px}.keyword-tag{background:#f0f2ff;color:#667eea;padding:8px 15px;border-radius:20px;font-size:.9rem;font-weight:600}@media (max-width: 768px){.header h1{font-size:2rem}.upload-section,.result-section{padding:20px}.upload-area{padding:40px 20px}.style-buttons{flex-direction:column}.result-header{flex-direction:column;gap:15px;align-items:flex-start}.action-buttons{width:100%}.action-btn{flex:1}}.error-message{background:#fee;border:2px solid #fcc;color:#c33;padding:15px;border-radius:10px;margin-top:20px;text-align:center}.success-message{background:#efe;border:2px solid #cfc;color:#3c3;padding:15px;border-radius:10px;margin-top:20px;text-align:center}.app.split-screen-mode .container{max-width:100%;display:grid;grid-template-columns:1fr 1fr;gap:20px;height:calc(100vh - 40px);overflow:hidden}.app.split-screen-mode .header{grid-column:1 / -1;padding:20px;margin-bottom:0}.main-panel{overflow-y:auto;padding-right:10px}.main-panel.split{max-height:calc(100vh - 200px)}.live-preview-panel{background:#fff;border-radius:20px;padding:20px;box-shadow:0 10px 40px #0000001a;display:flex;flex-direction:column;overflow:hidden}.live-preview-header{border-bottom:2px solid #e0e0e0;padding-bottom:15px;margin-bottom:20px}.live-preview-header h3{font-size:1.5rem;color:#333;margin-bottom:15px;display:flex;align-items:center;gap:10px}.progress-bar-container{width:100%;height:30px;background:#f0f0f0;border-radius:15px;overflow:hidden;margin-bottom:10px;position:relative}.progress-bar-fill{height:100%;background:linear-gradient(90deg,#667eea,#764ba2);transition:width .3s ease;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:600;font-size:.9rem}.live-message{color:#666;font-size:1rem;font-weight:500;text-align:center}.live-preview-content{flex:1;overflow-y:auto;display:flex;align-items:center;justify-content:center;background:#f8f9ff;border-radius:15px;padding:20px}.live-screenshot{max-width:100%;height:auto;border-radius:10px;box-shadow:0 5px 20px #0000001a}.live-placeholder{text-align:center;color:#666}.live-spinner{border:4px solid rgba(102,126,234,.2);border-top:4px solid #667eea;border-radius:50%;width:60px;height:60px;animation:spin 1s linear infinite;margin:0 auto 20px}@media (max-width: 1200px){.app.split-screen-mode .container{grid-template-columns:1fr;grid-template-rows:auto 1fr;height:auto}.live-preview-panel{min-height:500px}}