.ad-popup-overlay{position:fixed;bottom:2rem;left:2rem;width:clamp(250px,25vw,350px);background:#fff;border-radius:15px;box-shadow:0 10px 30px #0003;z-index:3000;overflow:hidden;animation:slideUpFade .5s ease-out;display:flex;flex-direction:column}@keyframes slideUpFade{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.ad-popup-content{position:relative;width:100%}.ad-popup-close-btn{position:absolute;top:10px;right:10px;width:30px;height:30px;background:#00000080;color:#fff;border:none;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:10;transition:background .2s}.ad-popup-close-btn:hover{background:#000000b3}.ad-popup-link{display:block;width:100%;text-decoration:none}.ad-popup-image{width:100%;height:auto;display:block}.ad-popup-footer{padding:.75rem;background:#f8f9fa;display:flex;justify-content:center;border-top:1px solid #eee}.ad-popup-bottom-close{background:#6c757d;color:#fff;border:none;padding:.5rem 1.5rem;border-radius:20px;font-size:.9rem;font-weight:600;cursor:pointer;transition:background .2s}.ad-popup-bottom-close:hover{background:#5a6268}:root{--background-main: #f0f8ff;--card-bg: #ffffff;--primary-accent: #007bff;--primary-accent-hover: #0056b3;--text-primary: #343a40;--text-secondary: #6c757d;--border-color: #d6eaff;--button-text: #ffffff;--success-color: #28a745;--success-color-hover: #218838;--save-btn-color: #17a2b8;--save-btn-hover: #138496;--share-btn-color: #6f42c1;--share-btn-hover: #5a349c;--error-bg: #e9f5ff;--error-border: #80bdff;--error-text: #004085;--font-family-display: "Playfair Display", serif;--font-family-body: "Noto Sans KR", sans-serif;--shadow: 0 5px 15px rgba(0, 91, 179, .1);--border-radius: 8px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family-body);background:var(--background-main);color:var(--text-primary);line-height:1.7;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{width:100%}.start-screen-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;background-image:url(https://upload.wikimedia.org/wikipedia/commons/thumb/e/ea/Van_Gogh_-_Starry_Night_-_Google_Art_Project.jpg/1280px-Van_Gogh_-_Starry_Night_-_Google_Art_Project.jpg);background-size:cover;background-position:center center;display:flex;justify-content:center;align-items:center;text-align:center;color:#fff;z-index:2000}.start-screen-overlay:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:#00000080;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}.start-screen-content{position:relative;z-index:1;animation:fadeIn 1.5s ease-out;padding:1rem}.start-screen-title{font-family:var(--font-family-display);font-size:clamp(2.5rem,1.5rem + 4vw,4rem);text-shadow:0 4px 15px rgba(0,0,0,.5);margin:0}.start-screen-subtitle{font-size:clamp(1rem,.8rem + 1vw,1.25rem);margin-bottom:1.5rem;margin-top:.5rem;text-shadow:0 2px 8px rgba(0,0,0,.5);font-weight:400}.start-screen-lang-switcher{display:flex;justify-content:center;flex-wrap:wrap;gap:.75rem;margin-bottom:2rem}.start-screen-lang-switcher .lang-btn{background:transparent;border:1px solid rgba(255,255,255,.8);color:#ffffffe6;padding:.5rem 1.25rem;border-radius:20px;cursor:pointer;font-family:var(--font-family-body);font-size:.9rem;font-weight:500;transition:all .3s ease}.start-screen-lang-switcher .lang-btn:hover{background:#fff3}.start-screen-lang-switcher .lang-btn.active{background:var(--primary-accent);border-color:var(--primary-accent);color:var(--button-text);font-weight:700}.start-screen-button{background-color:var(--primary-accent);color:var(--button-text);border:none;padding:1rem 2.5rem;border-radius:50px;font-size:clamp(1rem,.9rem + .5vw,1.2rem);font-weight:700;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 15px #007bff4d;text-transform:uppercase;letter-spacing:1px}.start-screen-button:hover{background-color:var(--primary-accent-hover);transform:translateY(-3px) scale(1.05);box-shadow:0 6px 20px #007bff66}.app-wrapper{background-image:url(https://upload.wikimedia.org/wikipedia/commons/thumb/e/ea/Van_Gogh_-_Starry_Night_-_Google_Art_Project.jpg/1280px-Van_Gogh_-_Starry_Night_-_Google_Art_Project.jpg);background-size:cover;background-position:center center;background-attachment:fixed}.app-wrapper.view-form,.app-wrapper.view-loading{height:100vh;overflow:hidden}.app-wrapper.view-artwork{height:auto;overflow:visible}.app-wrapper.view-artwork .container{overflow-y:visible;padding-top:0;max-width:800px}.app-wrapper.view-artwork .app-header{height:auto;min-height:150px}.app-wrapper.view-artwork footer{height:auto;padding:2rem 1rem}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.app-header{width:100%;height:35vh;position:relative;text-align:center;color:#fff;display:flex;align-items:center;justify-content:center;padding:1rem}.view-form .app-header,.view-loading .app-header{position:fixed;top:0;left:0;right:0;z-index:100}.view-slideshow .app-header{display:none}.app-header:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:#0006;z-index:0}.header-content{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;gap:.5rem}.logo{font-family:var(--font-family-display);font-weight:700;font-size:clamp(2rem,1.5rem + 2vw,2.5rem);text-shadow:0 2px 8px rgba(0,0,0,.6);color:#fff;margin:0;cursor:pointer}.subtitle{font-size:clamp(.9rem,.8rem + .5vw,1.1rem);font-weight:400;text-shadow:0 1px 4px rgba(0,0,0,.6);margin-bottom:.5rem}.lang-switcher{display:flex;justify-content:center;flex-wrap:wrap;gap:.5rem}.lang-btn{background:transparent;border:1px solid rgba(255,255,255,.8);color:#ffffffe6;padding:.3rem 1rem;border-radius:20px;cursor:pointer;font-family:var(--font-family-body);font-size:.8rem;font-weight:500;transition:all .3s ease}.lang-btn:hover{background:#ffffff1a}.lang-btn.active{background:var(--primary-accent);border-color:var(--primary-accent);color:var(--button-text);font-weight:700}.header-prompt{font-family:var(--font-family-display);font-size:clamp(1.2rem,1rem + 1vw,1.5rem);text-shadow:0 1px 4px rgba(0,0,0,.6);margin:0;font-weight:700}.music-player{display:flex;align-items:center;justify-content:center;width:100%}.view-form .music-player,.view-loading .music-player{background-color:transparent;padding:.5rem 1rem;margin-top:1rem;flex-direction:column;gap:.25rem;max-width:350px;border:none}.track-info{display:flex;flex-direction:column;align-items:center;text-align:center;min-width:0;overflow:hidden;width:100%}.track-title-wrapper{display:flex;width:fit-content}.track-title-wrapper.playing{animation:marquee-scroll 20s linear infinite}.track-title-segment{font-weight:500;white-space:nowrap;flex-shrink:0;padding-right:3rem}.view-form .track-title-segment,.view-loading .track-title-segment{font-size:.85rem;color:#fff}@keyframes marquee-scroll{0%{transform:translate(0)}to{transform:translate(-50%)}}.controls{display:flex;align-items:center}.view-form .controls,.view-loading .controls{gap:.25rem}.control-btn{background:transparent;border:none;cursor:pointer;padding:.4rem;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:background-color .2s,opacity .2s}.view-form .control-btn,.view-loading .control-btn{color:#fff}.view-form .control-btn:hover,.view-loading .control-btn:hover{background-color:#ffffff1a}.control-btn svg{width:18px;height:18px}.play-pause-btn{transform:scale(1.1)}.repeat-btn.mode-off{opacity:.6}.music-popup-content .repeat-btn.mode-one,.music-popup-content .repeat-btn.mode-all{color:var(--primary-accent)}.container{width:100%;max-width:1200px;text-align:center;margin:0 auto;padding:2rem 1rem}.view-form .container,.view-loading .container{position:absolute;top:35vh;bottom:20vh;left:0;right:0;overflow-y:auto;padding-top:2rem;padding-bottom:2rem}.view-slideshow .container{padding:0;max-width:none}main{width:100%}.card{background:var(--card-bg);border-radius:var(--border-radius);box-shadow:var(--shadow);border:1px solid var(--border-color);padding:2.5rem;text-align:left;animation:fadeIn .6s ease-in-out;position:relative;z-index:2}.artwork-display.card{margin-top:2rem}@keyframes fadeIn{0%{opacity:0;transform:translateY(15px)}to{opacity:1;transform:translateY(0)}}.user-form.card{background:transparent;box-shadow:none;border:none;padding:0;margin-top:0}.form-group{display:flex;flex-direction:column}.form-group input,.form-group select{width:100%;padding:.8rem;border:1px solid var(--border-color);border-radius:var(--border-radius);font-size:1rem;font-family:var(--font-family-body);background-color:#fff;transition:border-color .3s,box-shadow .3s}.form-group input:focus,.form-group 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brightness(.6);opacity:.8;z-index:0;transform:scale(1.1)}.image-loader-overlay{position:absolute;top:0;left:0;width:100%;height:100%;display:flex;justify-content:center;align-items:center;z-index:2}.artwork-image{width:100%;height:auto;display:block;max-height:600px;object-fit:contain;position:relative;z-index:1;opacity:0;transition:opacity .5s ease-in-out}.artwork-image.visible{opacity:1}.artwork-info{padding:2.5rem}.selected-emotion-display{text-align:center;margin-bottom:1.5rem;margin-top:-1rem}.emotion-tag{display:inline-block;background-color:var(--error-bg);color:var(--primary-accent);padding:.35rem 1.25rem;border-radius:20px;font-weight:700;font-size:.95rem;border:1px solid var(--border-color)}.artwork-title{font-family:var(--font-family-display);font-size:clamp(1.5rem,1.25rem + 1.5vw,2rem);font-weight:700;margin-bottom:.5rem;margin-top:1.5rem;color:var(--text-primary)}.artwork-artist{font-size:1.1rem;color:var(--text-secondary);margin-bottom:0}.message-box{background-color:var(--error-bg);border-left:4px solid var(--primary-accent);padding:1.5rem;margin:2rem 0;border-radius:var(--border-radius);font-style:italic;color:var(--text-primary)}.artwork-details-section{margin-top:2rem;padding-top:2rem;border-top:1px solid var(--border-color)}.artwork-details-section:first-of-type{margin-top:0;padding-top:0;border-top:none}.apuda-canvas{border-radius:var(--border-radius);padding:1.5rem;position:relative;overflow:hidden}.apuda-canvas:before{content:"ApuDa\a Canvas";white-space:pre;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) rotate(-15deg);font-family:var(--font-family-display);font-size:4rem;font-weight:700;line-height:1.1;text-align:center;color:#005bb314;pointer-events:none;z-index:0}.apuda-canvas>*{position:relative;z-index:1}.apuda-canvas h3{font-family:var(--font-family-display);color:var(--text-primary);font-size:clamp(1.3rem,1.1rem + .8vw,1.5rem);margin-bottom:1rem}.apuda-canvas .markdown-content{color:var(--text-primary)}.artwork-details-section p,.markdown-content{color:var(--text-primary);line-height:1.8;font-size:1rem}.markdown-content{white-space:pre-wrap}.apuda-canvas .markdown-content strong{font-weight:700;color:var(--primary-accent)}.instructions-overlay .markdown-content,.slideshow-text-overlay .markdown-content{color:#a3d5ff}.instructions-overlay .markdown-content strong,.slideshow-text-overlay .markdown-content strong{font-weight:700;color:#fff59d}.markdown-content .apuda-brand{font-weight:700;color:var(--primary-accent);font-style:italic}.met-link{display:block;text-decoration:none;font-weight:400;transition:all .3s ease;cursor:pointer;background-color:transparent;color:var(--text-secondary);border:none;padding:0;margin:1.5rem 0;text-align:left;font-size:.9rem}.met-link:hover{background-color:transparent;color:var(--primary-accent);text-decoration:underline}.action-buttons-group{display:flex;gap:1rem;margin-top:2.5rem}.action-btn{flex-grow:1;padding:1rem;border-radius:var(--border-radius);font-size:1.1rem;font-weight:700;cursor:pointer;transition:background-color .3s,transform .2s;text-align:center;text-decoration:none;color:var(--button-text);border:none}.action-btn:hover{transform:translateY(-2px)}.save-btn{background-color:var(--save-btn-color)}.save-btn:hover{background-color:var(--save-btn-hover)}.share-btn{background-color:var(--share-btn-color)}.share-btn:hover{background-color:var(--share-btn-hover)}.loading-spinner{display:flex;flex-direction:column;justify-content:center;align-items:center;height:100%;text-align:center;padding:1rem}.spinner{width:30px;height:30px;border:3px solid rgba(255,255,255,.2);border-top-color:#fff;border-radius:50%;animation:spin 1s linear infinite;margin:0 auto 1rem}.loading-title{font-family:var(--font-family-display);color:#fff;font-size:1.5rem;margin-bottom:1.5rem;text-shadow:0 2px 4px rgba(0,0,0,.5)}.loading-slogan{color:#fff;font-size:1rem;min-height:5.5em;display:inline-block;padding:1rem 1.5rem;line-height:1.5;text-align:center;text-shadow:0 1px 3px rgba(0,0,0,.5);background-color:#0009;border-radius:var(--border-radius);max-width:90%;box-shadow:0 4px 15px #0000004d}.slideshow-loading-message-box{border:1px solid rgba(255,255,255,.2);font-size:1.1rem;font-style:normal;min-height:0}.slogan-title{display:block;font-family:var(--font-family-display);font-style:italic;color:#fff;font-weight:700;margin-bottom:.5rem;font-size:1.1rem;line-height:1.3}.apuda-highlight{color:var(--primary-accent)}.typing-cursor{display:inline-block;width:3px;height:1.2em;background-color:#fff;animation:blink 1s step-end infinite;margin-left:4px;vertical-align:text-bottom}@keyframes spin{to{transform:rotate(360deg)}}@keyframes blink{0%,to{background-color:transparent}50%{background-color:#fff}}.copy-success-toast{position:fixed;bottom:2rem;left:50%;transform:translate(-50%);background-color:#000c;color:#fff;padding:.75rem 1.5rem;border-radius:2rem;z-index:1100;font-size:1rem;animation:toast-fade-in-out 2.5s ease-in-out forwards}@keyframes toast-fade-in-out{0%{opacity:0;transform:translate(-50%,10px)}20%{opacity:1;transform:translate(-50%)}80%{opacity:1;transform:translate(-50%)}to{opacity:0;transform:translate(-50%,-10px)}}.fullscreen-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;background-color:#000000d9;backdrop-filter:blur(5px);-webkit-backdrop-filter:blur(5px);display:flex;justify-content:center;align-items:center;z-index:1000;animation:fadeIn .3s ease}.fullscreen-content-wrapper{position:relative;width:100%;height:100%;display:flex;align-items:center;justify-content:center;padding:1rem}.fullscreen-image{display:block;max-width:100%;max-height:100%;object-fit:contain;box-shadow:0 10px 30px #00000080;-webkit-user-select:none;user-select:none;-webkit-user-drag:none}.instructions-overlay{position:absolute;bottom:0;left:0;width:100%;top:auto;transform:none;max-height:60vh;color:#fff;padding:4rem 2rem 5rem;overflow-y:auto;font-size:clamp(1.1rem,2.5vh,1.5rem);line-height:1.8;background:linear-gradient(to top,#000 30%,#000000e6 70%,#0000);text-shadow:0 1px 2px rgba(0,0,0,.7),0 2px 6px rgba(0,0,0,.8);-ms-overflow-style:none;scrollbar-width:none;opacity:1;transition:opacity 1.5s ease-in-out;text-align:left}.instructions-overlay.fade-out{opacity:0;pointer-events:none}.instructions-overlay::-webkit-scrollbar{display:none}.typing-cursor-viewer{display:inline-block;width:3px;height:1.2em;background-color:#fff;animation:blink 1s step-end infinite;margin-left:4px;vertical-align:text-bottom}.fullscreen-close-btn{position:absolute;top:15px;right:25px;background:none;border:none;color:#fff;font-size:3rem;font-weight:300;cursor:pointer;line-height:1;transition:transform .2s,color .2s;padding:.5rem;text-shadow:0 0 10px black;z-index:1001}.fullscreen-close-btn:hover{transform:scale(1.1);color:#fdd}.slideshow-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;background-color:#000;z-index:1000;animation:fadeIn .5s ease}.slideshow-image-wrapper{width:100%;height:100%;position:relative}.slideshow-image{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:contain;opacity:0;transition:opacity 1.5s ease-in-out}.slideshow-image.active{opacity:1;z-index:1}.slideshow-text-overlay{position:absolute;bottom:0;left:0;width:100%;color:#fff;padding:4rem 2rem 5rem;background:linear-gradient(to top,#000 30%,#000000e6 70%,#0000);text-shadow:0 1px 2px rgba(0,0,0,.7),0 2px 6px rgba(0,0,0,.8);font-size:clamp(1.1rem,2.5vh,1.5rem);line-height:1.8;opacity:0;transition:opacity 1s ease-in-out;pointer-events:none;z-index:2}.slideshow-text-overlay.visible{opacity:1}.slideshow-close-btn{position:absolute;top:15px;right:25px;z-index:3;background:none;border:none;color:#fffc;font-size:3rem;font-weight:300;cursor:pointer;text-shadow:0 0 10px black;opacity:0;pointer-events:none;transition:opacity .3s ease,transform .2s,color .2s}.slideshow-close-btn.visible{opacity:.8;pointer-events:auto}.slideshow-close-btn.visible:hover{color:#fff;transform:scale(1.1)}.slideshow-nav-btn{position:absolute;top:50%;transform:translateY(-50%);z-index:3;background:#007bff80;border:none;cursor:pointer;padding:.75rem;opacity:0;pointer-events:none;transition:opacity .3s,background-color .3s,transform .3s;border-radius:50%}.slideshow-nav-btn.visible{opacity:.8;pointer-events:auto}.slideshow-nav-btn.visible:hover{opacity:1;background:#007bffb3;transform:translateY(-50%) scale(1.05)}.slideshow-nav-btn 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