:root{--bg-primary: #0b1329;--bg-secondary: #080b16;--bg-card: rgba(23, 37, 84, .45);--bg-card-hover: rgba(30, 48, 110, .6);--primary: #6366f1;--primary-glow: rgba(99, 102, 241, .25);--primary-hover: #4f46e5;--accent: #d946ef;--accent-hover: #c084fc;--success: #10b981;--success-glow: rgba(16, 185, 129, .15);--success-border: #059669;--warning: #f59e0b;--warning-glow: rgba(245, 158, 11, .15);--danger: #ef4444;--danger-glow: rgba(239, 68, 68, .15);--danger-border: #dc2626;--text-primary: #f8fafc;--text-secondary: #cbd5e1;--text-muted: #64748b;--border: rgba(255, 255, 255, .08);--border-focus: rgba(99, 102, 241, .4);--radius-sm: 8px;--radius-md: 14px;--radius-lg: 24px;--radius-full: 9999px;--transition-fast: .15s ease;--transition-normal: .25s cubic-bezier(.4, 0, .2, 1);--transition-slow: .4s cubic-bezier(.4, 0, .2, 1);--glass-blur: blur(20px);--shadow-lg: 0 10px 30px -5px rgba(0, 0, 0, .6), 0 8px 15px -6px rgba(0, 0, 0, .6);--shadow-glow: 0 0 25px rgba(99, 102, 241, .3)}*{margin:0;padding:0;box-sizing:border-box;font-family:Inter,Noto Sans KR,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{background-color:var(--bg-secondary);background-image:radial-gradient(at 0% 0%,rgba(99,102,241,.12) 0px,transparent 40%),radial-gradient(at 100% 100%,rgba(217,70,239,.08) 0px,transparent 45%);background-attachment:fixed;color:var(--text-primary);min-height:100vh;overflow-x:hidden}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:var(--bg-secondary)}::-webkit-scrollbar-thumb{background:var(--border);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}@keyframes fadeIn{0%{opacity:0;transform:translateY(15px)}to{opacity:1;transform:translateY(0)}}@keyframes scaleIn{0%{transform:scale(.96);opacity:0}to{transform:scale(1);opacity:1}}@keyframes popUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}.animate-fade-in{animation:fadeIn var(--transition-normal) forwards}.animate-scale-in{animation:scaleIn var(--transition-normal) forwards}.animate-float{animation:float 5s ease-in-out infinite}.app-container{display:flex;flex-direction:column;min-height:100vh;width:100%}.main-content{flex:1;display:flex;flex-direction:column;width:100%;max-width:1200px;margin:0 auto;padding:80px 24px 40px}.glass-panel{background:var(--bg-card);backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);transition:all var(--transition-fast)}.glass-panel:hover{border-color:#ffffff1f;background:var(--bg-card-hover)}.header{position:fixed;top:0;left:0;right:0;height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 24px;z-index:100;border-radius:0;border-bottom:1px solid var(--border);background:#080b16d9;backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur)}.header-logo{display:flex;align-items:center;gap:10px;cursor:pointer}.logo-icon{font-size:1.6rem}.logo-text{font-weight:800;font-size:1.3rem;background:linear-gradient(135deg,#818cf8,#f472b6);-webkit-background-clip:text;-webkit-text-fill-color:transparent;letter-spacing:-.5px}.header-nav{display:flex;align-items:center;gap:16px}.user-badge{display:flex;align-items:center;gap:6px;padding:6px 12px;background:#ffffff0d;border:1px solid var(--border);border-radius:var(--radius-full);font-size:.85rem;font-weight:500;color:var(--text-secondary)}.admin-tag{background:var(--accent);color:#fff;font-size:.65rem;padding:1px 6px;border-radius:4px;font-weight:700;margin-left:6px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:var(--radius-md);font-weight:600;font-size:.95rem;cursor:pointer;transition:all var(--transition-fast);border:none;outline:none}.btn-primary{background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;box-shadow:var(--shadow-glow)}.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.15);box-shadow:0 0 25px #6366f166}.btn-primary:active{transform:translateY(0)}.btn-secondary{background:#ffffff0d;color:var(--text-primary);border:1px solid var(--border)}.btn-secondary:hover{background:#ffffff1a;border-color:#fff3}.btn-sm{padding:8px 16px;font-size:.85rem;border-radius:8px}.btn-xs{padding:4px 10px;font-size:.75rem;border-radius:6px}.btn-danger{background:#ef444426;color:#f87171;border:1px solid rgba(239,68,68,.3)}.btn-danger:hover{background:var(--danger);color:#fff;border-color:var(--danger-border)}.w-full{width:100%}.mt-4{margin-top:1rem}.mt-6{margin-top:1.5rem}.mb-6{margin-bottom:1.5rem}.text-danger{color:#ef4444!important}.text-center{text-align:center}.mx-auto{margin-left:auto;margin-right:auto}.input-field{width:100%;padding:12px 16px;background:#0a0f1ecc;border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text-primary);font-size:.95rem;outline:none;transition:all var(--transition-fast)}.input-field:focus{border-color:var(--primary);box-shadow:0 0 0 2px var(--primary-glow)}.auth-wrapper{margin:auto;width:100%;max-width:440px;padding:40px 0;display:flex;flex-direction:column;gap:24px}.auth-brand{text-align:center}.auth-brand h1{font-size:3rem;font-weight:900;background:linear-gradient(135deg,#818cf8,#d946ef);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:8px}.auth-brand p{color:var(--text-secondary);font-size:.95rem}.auth-card{padding:32px}.auth-tabs{display:flex;border-bottom:2px solid var(--border);margin-bottom:24px}.auth-tab{flex:1;background:none;border:none;color:var(--text-muted);font-size:1rem;font-weight:600;padding:12px;cursor:pointer;transition:all var(--transition-fast);text-align:center}.auth-tab.active{color:var(--text-primary);border-bottom:2px solid var(--primary)}.auth-form{display:flex;flex-direction:column;gap:18px}.form-group{display:flex;flex-direction:column;gap:8px}.form-group label{font-size:.85rem;font-weight:600;color:var(--text-secondary)}.pw-hint{font-size:.75rem;color:var(--text-muted);display:flex;justify-content:space-between;align-items:center}.pw-status-badge{padding:1px 6px;border-radius:4px;font-weight:700}.pw-status-badge.valid{background:#10b98126;color:#34d399}.pw-status-badge.invalid{background:#ef44441a;color:#f87171}.toast{padding:12px 16px;border-radius:var(--radius-sm);font-size:.9rem;font-weight:500;margin-bottom:12px}.toast-error{background:#ef444426;color:#f87171;border:1px solid rgba(239,68,68,.3)}.toast-success{background:#10b98126;color:#34d399;border:1px solid rgba(16,185,129,.3)}.dashboard-container{display:flex;flex-direction:column;gap:32px;margin-top:20px}.welcome-banner h2{font-size:2rem;font-weight:800;margin-bottom:8px}.welcome-banner p{color:var(--text-secondary)}.dashboard-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}@media (max-width: 768px){.dashboard-grid{grid-template-columns:1fr}}.dashboard-card{padding:36px;display:flex;flex-direction:column}.dashboard-card h3{font-size:1.4rem;font-weight:700;margin-bottom:8px}.dashboard-card p{color:var(--text-secondary);font-size:.95rem;line-height:1.5}.card-icon-wrapper{margin-bottom:20px;width:56px;height:56px;border-radius:var(--radius-md);background:#ffffff0a;display:flex;align-items:center;justify-content:center;border:1px solid var(--border)}.highlight-card{background:radial-gradient(circle at 100% 0%,rgba(99,102,241,.25) 0%,transparent 60%),var(--bg-card);border-color:#6366f140}.highlight-card:hover{border-color:#6366f166}.settings-fields{margin-top:24px;display:flex;flex-direction:column;gap:16px}.challenge-container{max-width:640px;width:100%;margin:auto;padding:10px 0;-webkit-user-select:none;user-select:none}.challenge-box{display:flex;flex-direction:column;gap:16px}.challenge-header{display:flex;align-items:center;justify-content:space-between;gap:12px}.close-btn{background:none;border:none;color:var(--text-muted);font-size:1.4rem;cursor:pointer;padding:2px;line-height:1;transition:color var(--transition-fast)}.close-btn:hover{color:var(--text-primary)}.progress-bar-track{flex:1;height:12px;background:#ffffff0d;border-radius:var(--radius-full);border:1px solid var(--border);overflow:hidden}.progress-bar-fill{height:100%;background:linear-gradient(90deg,#10b981,#34d399);border-radius:var(--radius-full);transition:width var(--transition-normal)}.progress-counter{font-size:.8rem;font-weight:700;color:var(--text-secondary)}.quiz-card{padding:24px;text-align:center;position:relative;overflow:hidden}.accuracy-badge{position:absolute;top:10px;right:12px;font-size:.7rem;font-weight:700;padding:3px 8px;background:#6366f126;color:#a5b4fc;border-radius:var(--radius-sm);border:1px solid rgba(99,102,241,.2)}.quiz-pos{font-size:.75rem;font-weight:700;text-transform:uppercase;color:var(--accent);background:#d946ef1a;padding:3px 10px;border-radius:var(--radius-full);display:inline-block;margin-bottom:8px}.quiz-word-wrapper{display:flex;align-items:center;justify-content:center;gap:12px;margin-bottom:8px}.quiz-question-word{font-size:2.3rem;font-weight:900;letter-spacing:-1px;text-shadow:0 0 15px rgba(255,255,255,.1)}.tts-btn{background:#6366f126;border:1px solid rgba(99,102,241,.25);border-radius:50%;width:40px;height:40px;display:flex;align-items:center;justify-content:center;color:var(--primary);cursor:pointer;transition:all var(--transition-fast);outline:none}.tts-btn:hover{background:var(--primary);color:#fff;transform:scale(1.1);box-shadow:0 0 15px #6366f14d}.tts-btn:active{transform:scale(.95)}.quiz-prompt{color:var(--text-secondary);font-size:.9rem}.interface-toggle{display:flex;background:#0a0f1e80;border:1px solid var(--border);border-radius:var(--radius-md);padding:3px}.toggle-tab{flex:1;background:none;border:none;color:var(--text-muted);font-weight:600;font-size:.85rem;padding:8px;border-radius:6px;cursor:pointer;transition:all var(--transition-fast)}.toggle-tab.active{background:#ffffff0d;color:var(--text-primary)}.choice-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}@media (max-width: 540px){.choice-grid{grid-template-columns:1fr;gap:8px}}.choice-btn{width:100%;padding:14px 20px;background:#1e293b4d;border:2px solid var(--border);border-radius:var(--radius-md);color:var(--text-primary);font-size:1rem;font-weight:600;text-align:left;cursor:pointer;transition:all var(--transition-fast);display:flex;align-items:center;justify-content:space-between}.choice-btn:hover{background:#6366f114;border-color:var(--primary);transform:translateY(-1px)}.choice-btn.selected{background:#6366f12e;border-color:var(--primary);box-shadow:0 0 12px #6366f133}.typing-box{background:#0a0f1e66;padding:6px;border-radius:var(--radius-md)}.typing-input{font-size:1.1rem;font-weight:600;padding:12px;text-align:center;border-color:var(--border)}.challenge-footer{min-height:70px}.check-btn{width:100%;padding:14px;font-size:1rem;border-radius:var(--radius-md)}.grading-toast{display:flex;align-items:center;justify-content:space-between;padding:24px 32px;border-radius:var(--radius-md);box-shadow:var(--shadow-lg);animation:popUp var(--transition-normal) forwards}.grading-content{display:flex;align-items:center;gap:16px}.grading-content h4{font-size:1.2rem;font-weight:700;margin-bottom:2px}.grading-content p{font-size:.9rem}.underline{text-decoration:underline;font-weight:700}.grading-success{background:#064e3be6;border:1px solid var(--success);color:#d1fae5}.grading-synonym{background:#783504e6;border:1px solid var(--warning);color:#fef3c7}.grading-error{background:#7f1d1de6;border:1px solid var(--danger);color:#fee2e2}.next-btn{background:#fff!important;color:var(--bg-secondary)!important;box-shadow:none}.next-btn:hover{transform:translateY(-2px);filter:brightness(.9)}.finished-card{padding:56px 40px;display:flex;flex-direction:column;align-items:center;gap:16px}.finished-card h2{font-size:2.2rem;font-weight:800}.finished-card p{color:var(--text-secondary)}.score-summary{display:flex;gap:24px;margin:24px 0;width:100%;max-width:400px}.score-item{flex:1;background:#ffffff08;border:1px solid var(--border);border-radius:var(--radius-md);padding:16px;display:flex;flex-direction:column;align-items:center;gap:6px}.score-item .label{font-size:.8rem;font-weight:600;color:var(--text-secondary)}.score-item .value{font-size:1.5rem;font-weight:800}.finished-actions{display:flex;gap:16px;width:100%;max-width:400px}.finished-actions button{flex:1}.admin-container{display:flex;flex-direction:column;gap:24px}.admin-header{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px}.admin-header h2{font-size:1.8rem;font-weight:800}.admin-tabs{display:flex;gap:10px;background:#0a0f1e66;padding:4px;border-radius:var(--radius-md);border:1px solid var(--border)}.admin-tab{background:none;border:none;color:var(--text-muted);font-size:.9rem;font-weight:600;padding:8px 16px;border-radius:8px;cursor:pointer;display:flex;align-items:center;gap:8px;transition:all var(--transition-fast)}.admin-tab.active{background:var(--primary);color:#fff}.admin-content-box{padding:24px}.admin-content-box h3{font-size:1.2rem;font-weight:700}.role-badge{font-size:.75rem;font-weight:700;padding:2px 8px;border-radius:4px}.role-badge.ADMIN{background:#d946ef26;color:#f472b6}.role-badge.USER{background:#ffffff0d;color:var(--text-secondary)}.status-dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:6px}.status-dot.verified{background:var(--success)}.status-dot.unverified{background:var(--text-muted)}.action-buttons{display:flex;gap:8px}.admin-content-grid{display:grid;grid-template-columns:360px 1fr;gap:24px;align-items:start}@media (max-width: 1024px){.admin-content-grid{grid-template-columns:1fr}}.admin-col{display:flex;flex-direction:column}.flex-1{flex:1}.mb-6{margin-bottom:24px}.h-full{height:100%}.dropzone{border:2px dashed var(--border);border-radius:var(--radius-md);padding:32px 16px;text-align:center;background:#ffffff03;cursor:pointer;transition:all var(--transition-fast);margin-top:16px;display:flex;flex-direction:column;align-items:center;gap:10px}.dropzone:hover,.dropzone.active{border-color:var(--success);background:#10b98105}.dropzone p{font-size:.9rem;font-weight:500;color:var(--text-secondary)}.file-hint{font-size:.75rem;color:var(--text-muted)}.hidden-file-input{display:none}.upload-status-toast{margin-top:12px;font-size:.85rem;font-weight:600;color:#34d399;text-align:center;padding:8px;background:#10b9811a;border-radius:6px}.word-form{display:flex;flex-direction:column;gap:16px}.form-row-2{display:grid;grid-template-columns:100px 1fr;gap:12px}.form-actions{display:flex;flex-direction:column;gap:8px}.search-box{display:flex;align-items:center;gap:8px;background:#0a0f1e99;border:1px solid var(--border);border-radius:8px;padding:6px 12px;width:240px}.search-box input{background:none;border:none;color:var(--text-primary);font-size:.85rem;outline:none;width:100%}.max-h-admin-table{max-height:650px;overflow-y:auto}.part-tag{font-size:.7rem;font-weight:700;padding:2px 6px;background:#ffffff0d;border-radius:4px;color:var(--text-secondary)}.weekly-chart-wrapper{background:#0a0f1e4d;padding:12px;border-radius:var(--radius-md);border:1px solid var(--border)}.history-table th,.history-table td{white-space:nowrap!important;text-overflow:ellipsis}@media (max-width: 680px){.btn-text-hide,.user-badge-text{display:none!important}.header-nav{gap:8px}.user-badge{padding:6px}}.carousel-container{box-shadow:var(--shadow-lg)}.carousel-slide{transition:transform var(--transition-normal)}.carousel-container button:hover{background:#ffffff26!important;border-color:var(--primary)!important;transform:translateY(-50%) scale(1.1)!important}