@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Noto+Sans+KR:wght@300;400;500;700&display=swap";:root{--bg-color:#0d0d12;--surface-color:#19192399;--surface-border:#ffffff14;--text-primary:#fff;--text-secondary:#a0a0ab;--accent-color:#d4af37;--accent-glow:#d4af374d;--success-color:#4ade80;--error-color:#f87171;--font-sans:"Inter", "Noto Sans KR", sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-color);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-image:radial-gradient(circle at 15%,#d4af370d,#0000 25%),radial-gradient(circle at 85% 30%,#aa3bff0d,#0000 25%);flex-direction:column;min-height:100vh;line-height:1.5;display:flex}#root{width:100%;min-height:100vh;display:flex}.glass-panel{background:var(--surface-color);-webkit-backdrop-filter:blur(12px);border:1px solid var(--surface-border);border-radius:16px}.glass-button{border:1px solid var(--surface-border);color:var(--text-primary);cursor:pointer;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#ffffff0d;border-radius:8px;padding:12px 24px;font-weight:500;transition:all .2s}.icon-btn{white-space:nowrap;justify-content:center;align-items:center;gap:6px;display:inline-flex}.action-btn{width:90px;height:36px;padding:0!important;font-size:13px!important}.proceed-btn{justify-content:center;align-items:center;min-width:200px;height:48px;margin-top:16px;display:flex;border-radius:24px!important;font-size:16px!important}.test-card h3{color:var(--accent-color);text-align:center;margin:0;font-size:20px}.test-instruction{color:var(--text-secondary);text-align:center;min-height:36px;margin:0;font-size:13px}@keyframes shake{0%,to{transform:translate(0)}20%{transform:translate(-8px)}40%{transform:translate(8px)}60%{transform:translate(-4px)}80%{transform:translate(4px)}}.shake-error{animation:.3s cubic-bezier(.36,.07,.19,.97) both shake}.glass-button:hover{background:#ffffff1a;transform:translateY(-1px);box-shadow:0 4px 12px #0003}.glass-button.primary{background:var(--accent-color);color:#000;border:none}.glass-button.primary:hover{box-shadow:0 0 20px var(--accent-glow);background:#e5c458}h1,h2,h3,h4{letter-spacing:-.02em;font-weight:600}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:#fff3;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#ffffff4d}.reward-overlay{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:1000;padding:var(--spacing-xl);background:#000000d9;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.reward-card{border-radius:var(--radius-lg);width:100%;max-width:400px;padding:var(--spacing-2xl);text-align:center;background:#1e1e1ecc;border:1px solid #ffffff1a;position:relative;overflow:hidden;box-shadow:0 25px 50px -12px #00000080,inset 0 0 0 1px #ffffff1a}.reward-card:before{content:"";background:radial-gradient(circle at center, rgba(var(--accent-rgb), .15) 0%, transparent 60%);z-index:0;pointer-events:none;width:200%;height:200%;position:absolute;top:-50%;left:-50%}.new-unlock-badge{background:var(--accent-color);color:#fff;z-index:10;padding:4px 30px;font-size:12px;font-weight:600;position:absolute;top:20px;right:-30px;transform:rotate(45deg);box-shadow:0 4px 12px #0003}.reward-icon-container{background:rgba(var(--accent-rgb), .1);border:1px solid rgba(var(--accent-rgb), .3);width:80px;height:80px;margin:0 auto var(--spacing-xl);z-index:1;border-radius:50%;justify-content:center;align-items:center;display:flex;position:relative}.reward-icon{color:var(--accent-color);filter:drop-shadow(0 0 10px rgba(var(--accent-rgb), .5))}.reward-title{margin:0 0 var(--spacing-sm);background:linear-gradient(135deg,#fff 0%,#ffffffb3 100%);-webkit-text-fill-color:transparent;z-index:1;-webkit-background-clip:text;font-size:28px;font-weight:700;position:relative}.reward-translation{color:var(--text-secondary);margin:0 0 var(--spacing-xl);z-index:1;font-size:16px;font-weight:500;position:relative}.reward-divider{height:1px;margin:0 0 var(--spacing-xl);z-index:1;background:linear-gradient(90deg,#0000,#ffffff1a,#0000);position:relative}.reward-description{color:#ffffffd9;margin:0 0 var(--spacing-2xl);z-index:1;font-size:15px;line-height:1.6;position:relative}.reward-btn{z-index:1;width:100%;padding:14px;font-size:16px;font-weight:600;position:relative}.gallery-overlay{background:var(--bg-primary);z-index:900;flex-direction:column;display:flex;position:fixed;inset:0;overflow:hidden}.gallery-header{padding:var(--spacing-xl);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#121212cc;border-bottom:1px solid #ffffff0d;justify-content:center;align-items:center;display:flex;position:relative}.gallery-tabs{gap:var(--spacing-md);border-radius:var(--radius-lg);background:#ffffff0d;padding:4px;display:flex}.tab-btn{color:var(--text-secondary);border-radius:var(--radius-md);cursor:pointer;background:0 0;border:none;padding:10px 24px;font-size:16px;font-weight:600;transition:all .3s}.tab-btn:hover{color:var(--text-primary)}.tab-btn.active{background:var(--accent-color);color:#fff;box-shadow:0 4px 12px rgba(var(--accent-rgb), .3)}.gallery-header .exit-btn{right:var(--spacing-xl);position:absolute}.gallery-content{padding:var(--spacing-2xl);flex:1;overflow-y:auto}.gallery-grid{gap:var(--spacing-xl);max-width:1000px;margin:0 auto;display:grid}.rewards-grid{grid-template-columns:repeat(auto-fill,minmax(180px,1fr))}.lexicon-grid{grid-template-columns:repeat(auto-fill,minmax(120px,1fr))}.gallery-card{aspect-ratio:3/4;border-radius:var(--radius-lg);cursor:pointer;padding:var(--spacing-lg);text-align:center;flex-direction:column;justify-content:center;align-items:center;display:flex;position:relative;overflow:hidden}.gallery-card.locked{cursor:default;background:#1e1e1e80;border:1px solid #ffffff05}.gallery-card.unlocked{border:1px solid rgba(var(--accent-rgb), .3);background:#282828cc}.gallery-card.unlocked:before{content:"";background:radial-gradient(circle at center, rgba(var(--accent-rgb), .05) 0%, transparent 70%);pointer-events:none;width:200%;height:200%;position:absolute;top:-50%;left:-50%}.reward-card-item.locked .mystery-icon{background:linear-gradient(135deg,gold 0%,#b8860b 100%);-webkit-text-fill-color:transparent;filter:drop-shadow(0 4px 10px #ffd70033);-webkit-background-clip:text;font-size:48px;font-weight:900}.reward-card-item.unlocked h4{color:var(--text-primary);margin:0 0 8px;font-size:18px;font-weight:700}.reward-card-item.unlocked p{color:var(--text-secondary);margin:0;font-size:13px}.lexicon-card-item{aspect-ratio:1}.lexicon-card-item.locked .locked-icon{color:#ffffff1a}.lexicon-card-item.unlocked .lexicon-char{color:var(--text-primary);margin-bottom:4px;font-size:42px;font-weight:700}.lexicon-audio-icon{color:var(--accent-color);opacity:.5;position:absolute;top:12px;right:12px}.lexicon-card-item.unlocked:hover .lexicon-audio-icon{opacity:1}.lexicon-date{color:#ffffff4d;letter-spacing:.5px;font-family:monospace;font-size:10px;position:absolute;bottom:8px}.home-container{max-width:900px;padding:var(--spacing-2xl) var(--spacing-xl);flex-direction:column;min-height:100vh;margin:0 auto;display:flex}.home-header{text-align:center;margin-bottom:40px}.home-header h1{margin-bottom:var(--spacing-sm);background:linear-gradient(135deg,#fff 0%,#ffffffb3 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;font-size:36px;font-weight:800}.home-header p{color:var(--text-secondary);font-size:18px}.course-matrix{gap:var(--spacing-xl);grid-template-columns:repeat(auto-fit,minmax(280px,1fr));display:grid}.course-card{padding:var(--spacing-xl);border-radius:var(--radius-lg);cursor:pointer;flex-direction:column;display:flex;position:relative;overflow:hidden}.course-card.locked{cursor:not-allowed;opacity:.6}.course-card.completed{border-color:rgba(var(--success-rgb), .3)}.card-header{margin-bottom:var(--spacing-md);justify-content:space-between;align-items:center;display:flex}.card-header h3{text-transform:uppercase;letter-spacing:1px;color:var(--accent-color);margin:0;font-size:14px}.status-badge{border-radius:12px;align-items:center;gap:4px;padding:4px 8px;font-size:12px;font-weight:600;display:flex}.status-badge.success{background:rgba(var(--success-rgb), .15);color:var(--success-color)}.status-badge.locked{color:var(--text-secondary);background:#ffffff1a}.course-card h2{margin:0 0 var(--spacing-md) 0;font-size:24px;font-weight:700}.card-preview{color:var(--text-secondary);letter-spacing:2px;margin-bottom:var(--spacing-xl);flex-grow:1;font-family:Malgun Gothic,Apple SD Gothic Neo,sans-serif;font-size:18px}.card-action{align-items:center;gap:var(--spacing-sm);color:var(--text-primary);font-size:15px;font-weight:600;display:flex}.course-card:not(.locked):hover .card-action{color:var(--accent-color)}.collection-entry-card{margin-top:var(--spacing-2xl);padding:var(--spacing-xl);border-radius:var(--radius-lg);cursor:pointer;align-items:center;gap:var(--spacing-xl);border:1px solid rgba(var(--accent-rgb), .2);background:linear-gradient(135deg,#1e1e1e99 0%,#28282899 100%);display:flex}.collection-icon{background:rgba(var(--accent-rgb), .15);width:50px;height:50px;color:var(--accent-color);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;display:flex}.collection-info h3{margin:0 0 var(--spacing-xs) 0;color:var(--text-primary);font-size:20px}.collection-info p{color:var(--text-secondary);margin:0;font-family:monospace;font-size:14px}.setup-container{flex-direction:column;justify-content:center;align-items:center;gap:60px;width:100vw;height:100vh;display:flex}.setup-header{text-align:center}.setup-header h1{color:var(--accent-color);margin-bottom:12px;font-size:36px}.setup-header p{color:var(--text-secondary);font-size:16px}.setup-cards{gap:40px;display:flex}.setup-card{text-align:center;flex-direction:column;align-items:center;gap:20px;width:320px;padding:40px;display:flex}.setup-icon{color:var(--text-primary);margin-bottom:10px}.setup-card h2{margin:0;font-size:24px}.setup-card p{color:var(--text-secondary);font-size:14px;line-height:1.6}.status-indicator{border-radius:20px;align-items:center;gap:8px;margin-top:auto;padding:8px 16px;font-size:14px;display:flex}.status-indicator.passed{color:var(--success-color);background:#4ade801a}.status-indicator.testing{color:var(--accent-color);background:#d4af371a;animation:1.5s infinite pulse-op}.setup-action-btn{width:100%;margin-top:auto}.proceed-lesson-btn{border-radius:40px;padding:16px 48px;font-size:20px;transition:all .3s}@keyframes pulse-op{0%{opacity:.5}50%{opacity:1}to{opacity:.5}}.learn-phase-container{flex-direction:column;justify-content:center;align-items:center;width:100%;height:100%;display:flex}.learn-content{flex-direction:column;align-items:center;gap:40px;width:100%;max-width:600px;padding:60px 80px;display:flex}.char-showcase{cursor:pointer;flex-direction:column;align-items:center;gap:24px;display:flex;position:relative}.huge-char{color:var(--text-primary);text-shadow:0 0 40px #ffffff1a;margin:0;font-size:160px;line-height:1;transition:color .3s}.huge-char.playing{color:var(--accent-color);text-shadow:0 0 60px var(--accent-glow)}.huge-play{color:var(--text-secondary);transition:all .3s;position:absolute;bottom:-40px}.char-showcase:hover .huge-play{color:var(--accent-color);transform:scale(1.1)}.learn-details{text-align:center;flex-direction:column;gap:16px;display:flex}.learn-details h2{color:var(--accent-color);font-size:24px}.learn-details p{color:var(--text-secondary);font-size:16px;line-height:1.6}.test-phase-container{flex-direction:column;justify-content:center;align-items:center;gap:32px;width:100%;height:100%;display:flex}.test-cards-container{justify-content:center;width:100%;display:flex}.test-card{border:1px solid var(--surface-border);flex-direction:column;align-items:center;gap:16px;width:340px;padding:28px 32px;transition:all .3s;display:flex}.test-card.passed{border-color:var(--success-color);box-shadow:0 0 20px #4ade801a}.test-card.failed{border-color:var(--error-color);box-shadow:0 0 20px #f871711a}.canvas-wrapper{border:1px solid var(--surface-border);background:#0006;border-radius:16px;width:240px;height:240px;position:relative;overflow:hidden}.watermark{color:#fff;pointer-events:none;-webkit-user-select:none;user-select:none;font-size:160px;font-weight:700;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.draw-canvas{cursor:crosshair;z-index:2;width:100%;height:100%;display:block;position:relative}.card-actions{justify-content:center;align-items:center;gap:12px;width:100%;min-height:36px;margin-top:auto;display:flex}.score-badge{border-radius:16px;align-items:center;gap:6px;padding:4px 12px;font-size:13px;display:flex}.score-badge.success{color:var(--success-color);background:#4ade801a}.score-badge.fail{color:var(--error-color);background:#f871711a;font-size:11px}.voice-wrapper{flex-direction:column;align-items:center;gap:12px;width:100%;display:flex}.waveform-container{border:1px solid var(--surface-border);background:#0000004d;border-radius:8px;width:280px;height:64px;position:relative;overflow:hidden}.wave-canvas{width:100%;height:100%;display:block}.auto-play-label{color:var(--accent-color);background:#000000b3;border-radius:8px;align-items:center;gap:4px;padding:2px 10px;font-size:11px;animation:1.5s infinite pulse-op;display:flex;position:absolute;bottom:4px;left:50%;transform:translate(-50%)}.mic-btn{border:2px solid var(--surface-border);width:60px;height:60px;color:var(--text-primary);cursor:pointer;background:#ffffff0d;border-radius:50%;justify-content:center;align-items:center;transition:all .3s;display:flex}.mic-btn.listening{border-color:var(--accent-color);background:#d4af3726;animation:1.5s infinite pulse-ring;box-shadow:0 0 20px #d4af374d}.mic-btn.passed-mic{border-color:var(--success-color);color:var(--success-color);cursor:default;background:#4ade801a}.mic-btn:disabled:not(.passed-mic){opacity:.3;cursor:not-allowed}.transcript-box{justify-content:center;align-items:center;width:100%;min-height:48px;display:flex}.transcript{color:var(--text-secondary);text-align:center;font-size:13px}.transcript.active{color:var(--accent-color);animation:1.5s infinite pulse-op}.diff-display{border:1px solid var(--surface-border);background:#ffffff05;border-radius:8px;flex-direction:column;gap:6px;width:100%;padding:10px 12px;font-size:14px;display:flex}.diff-row{justify-content:space-between;align-items:center;display:flex}.diff-label{color:var(--text-secondary);font-size:12px}.diff-verdict{text-align:center;border-top:1px solid var(--surface-border);padding-top:4px;font-size:13px}.success-text{color:var(--success-color)}.error-text{color:var(--error-color)}.replay-controls{gap:10px;display:flex}.completion-footer{position:absolute;bottom:60px}.error-action{color:var(--error-color);border-color:var(--error-color)}.error-action:hover{background:#f871711a}.text-btn{background:#ffffff0d;border-color:#0000;padding:4px 12px}.text-btn:hover{background:#ffffff1a}.submit-draw-btn{padding:8px 16px;font-size:14px}@keyframes pulse-ring{0%{box-shadow:0 0 #d4af3766}70%{box-shadow:0 0 0 15px #d4af3700}to{box-shadow:0 0 #d4af3700}}.choice-phase-container{flex-direction:column;gap:1.5rem;height:100%;display:flex}.big-audio-btn-wrapper,.big-char-wrapper{justify-content:center;align-items:center;margin:2rem 0;display:flex}.big-audio-btn{width:120px;height:120px;color:var(--primary-color);background:#64ffda1a;border-radius:50%;justify-content:center;align-items:center;display:flex}.big-audio-btn:hover{background:#64ffda33}.big-char{text-shadow:0 0 20px #64ffda4d;font-size:6rem;font-weight:800}.options-grid{grid-template-columns:repeat(2,1fr);gap:1rem;width:100%;max-width:400px;margin:0 auto;display:grid}.option-btn{justify-content:center;align-items:center;height:100px;font-size:2rem;font-weight:700;transition:all .3s;display:flex}.option-btn.active{border-color:var(--primary-color);background:#64ffda26}.option-btn.correct{border-color:var(--success-color);color:var(--success-color);background:#4ade8033}.option-btn.incorrect{border-color:var(--error-color);color:var(--error-color);background:#f8717133}.option-audio{align-items:center;gap:.5rem;font-size:1.2rem;font-weight:600;display:flex}.lesson-container{flex-direction:column;width:100vw;height:100vh;display:flex;overflow:hidden}.lesson-header{z-index:100;align-items:center;gap:32px;height:80px;padding:0 40px;display:flex}.exit-btn{width:40px;height:40px;color:var(--text-secondary);border-radius:50%;justify-content:center;align-items:center;padding:0;display:flex}.exit-btn:hover{color:var(--text-primary);background:#ffffff1a}.timeline-bar-container{background:#ffffff08;border-radius:8px;flex:1;justify-content:flex-start;align-items:center;gap:4px;height:20px;margin-left:20px;padding:0 10px;display:flex;position:relative}.timeline-segment{background:var(--primary-color);cursor:pointer;opacity:.6;border-radius:3px;flex-shrink:1;width:20px;height:6px;transition:all .2s;position:relative}.timeline-segment:hover{opacity:1;transform:scaleY(1.8)}.timeline-segment.future{pointer-events:none;background:#ffffff1a}.timeline-segment.current{background:var(--accent-color);box-shadow:0 0 8px var(--accent-color);opacity:1;transform:scaleY(1.5)}.timeline-tooltip{border:1px solid var(--primary-color);z-index:100;pointer-events:none;background:#0a192ff2;border-radius:8px;flex-direction:column;align-items:center;gap:4px;min-width:80px;margin-top:12px;padding:8px 12px;display:flex;position:absolute;top:100%;left:50%;transform:translate(-50%);box-shadow:0 4px 12px #00000080}.tooltip-target{color:var(--primary-color);font-size:24px;font-weight:800}.tooltip-type{color:var(--text-secondary);white-space:nowrap;font-size:12px}.jump-frontier-btn{background:var(--accent-color);color:#0a192f;cursor:pointer;white-space:nowrap;border:none;border-radius:12px;margin-left:8px;padding:6px 12px;font-size:12px;font-weight:700;transition:all .2s}.jump-frontier-btn:hover{box-shadow:0 0 10px var(--accent-color);transform:scale(1.05)}.lesson-content{flex:1;display:flex;position:relative}.phase-wrapper{justify-content:center;align-items:center;width:100%;height:100%;display:flex;position:absolute;top:0;left:0}.phase-indicator{color:var(--accent-color);letter-spacing:4px;text-transform:uppercase;border:1px solid var(--accent-glow);background:#d4af371a;border-radius:20px;padding:6px 20px;font-size:14px;position:absolute;top:20px;left:50%;transform:translate(-50%)}.app-container{background-color:var(--bg-color);background-image:radial-gradient(circle at 15%,#d4af3708,#0000 30%),radial-gradient(circle at 85% 30%,#aa3bff08,#0000 30%);flex-direction:column;width:100vw;height:100vh;display:flex;overflow:hidden}