@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Outfit:wght@400;500;600;700&display=swap";:root{--bg-color:#0f172a;--text-primary:#f8fafc;--text-secondary:#94a3b8;--accent-color:#8b5cf6;--accent-hover:#a78bfa;--glass-bg:#1e293bb3;--glass-border:#ffffff1a;--blob-1:#3b82f6;--blob-2:#8b5cf6;--text:var(--text-secondary);--text-h:var(--text-primary);--bg:var(--bg-color);--border:var(--glass-border);--accent:var(--accent-color);--glass-shadow:0 8px 32px 0 #0000004d;--button-text:#fff;--sans:"Outfit", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--heading:"Outfit", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif}@keyframes fadeInUp{0%{opacity:0;transform:translateY(15px)}to{opacity:1;transform:translateY(0)}}body{font-family:var(--sans);color:var(--text-h);background:var(--bg-color);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;flex-direction:column;min-height:100vh;margin:0;line-height:1.6;display:flex;position:relative;overflow-x:hidden}*{box-sizing:border-box}.glass-panel{background:var(--glass-bg);-webkit-backdrop-filter:blur(12px);border:1px solid var(--glass-border);box-shadow:var(--glass-shadow);border-radius:16px;animation:.4s cubic-bezier(.16,1,.3,1) forwards fadeInUp}.reveal-animation{animation:.4s cubic-bezier(.16,1,.3,1) forwards fadeInUp}.view-container{flex-direction:column;align-items:center;gap:24px;width:100%;max-width:600px;margin:0 auto;padding:32px;display:flex}h1,h2,h3,h4{font-family:var(--heading);color:var(--text-h);margin-top:0}.btn-primary{background:var(--accent);color:var(--button-text);cursor:pointer;border:none;border-radius:12px;justify-content:center;align-items:center;gap:12px;width:100%;padding:14px 28px;font-size:16px;font-weight:600;transition:all .25s cubic-bezier(.4,0,.2,1);display:inline-flex}.btn-primary:hover:not(:disabled){background:var(--accent-hover);filter:brightness(1.05);transform:translateY(-2px)scale(1.02);box-shadow:0 8px 20px #8b5cf64d}.btn-primary:active:not(:disabled){transform:translateY(0)}.btn-primary:disabled{opacity:.7;cursor:not-allowed}.login-wrapper{justify-content:center;align-items:center;min-height:100vh;padding:24px;display:flex}.login-card{text-align:center;width:100%;max-width:440px;padding:48px}.login-card h1{letter-spacing:-.5px;margin-bottom:8px;font-size:32px;font-weight:700}.login-card .subtitle{margin-bottom:40px;font-size:16px}.error-message{color:#ef4444;background:#ef44441a;border:1px solid #ef444433;border-radius:8px;margin-bottom:24px;padding:12px;font-size:14px}.course-card{background:#ffffff80;border:1px solid #0000001a;border-radius:12px;margin-bottom:20px;padding:20px}.back-button{color:var(--accent);cursor:pointer;background:0 0;border:none;margin-bottom:20px;padding:0;font-weight:600}.back-button:hover{color:var(--accent-hover);text-decoration:underline}.flashcard-progress{color:var(--text);margin-bottom:16px;font-size:14px}.flashcard-word{text-align:center;cursor:pointer;color:var(--text-h);margin-bottom:24px;font-size:32px;font-weight:700}.flashcard-audio-hint{color:var(--accent);margin-top:8px;font-size:14px;font-weight:400;display:block}.flashcard-definition{color:var(--text);border-top:1px solid var(--border);text-align:center;width:100%;margin-bottom:32px;padding:16px;font-size:20px}.flashcard-actions{justify-content:space-between;gap:8px;width:100%;display:flex}.btn-rating{cursor:pointer;border:none;border-radius:8px;flex:1;padding:10px;font-weight:600;transition:all .2s}.btn-rating:hover{filter:brightness(1.05);transform:translateY(-2px)scale(1.02)}.btn-rating-again{color:#b91c1c;background-color:#fee2e2}.btn-rating-hard{color:#c2410c;background-color:#ffedd5}.btn-rating-good{color:#15803d;background-color:#dcfce7}.btn-rating-easy{color:#1d4ed8;background-color:#dbeafe}.vocab-word{cursor:pointer;border-radius:4px;transition:all .2s cubic-bezier(.4,0,.2,1)}.target-word{color:var(--accent-hover);border-bottom:2px solid var(--accent);background-color:#8b5cf633;padding:0 4px}.target-word:hover{background-color:#8b5cf666}.secondary-word{border-bottom:2px dashed #0096ff99;padding:0 2px}.edit-word{border-bottom:2px dashed #0000;padding:0 4px}.edit-word.none-word{color:inherit;background-color:#0000;border-bottom:2px dashed #ccc}.edit-word.none-word:hover{background-color:#0000000d}.hover-scale{transition:all .2s cubic-bezier(.4,0,.2,1)}.hover-scale:hover{filter:brightness(1.05);transform:scale(1.02)}.extract-vocab-btn{border:1px solid var(--glass-border);color:var(--text-secondary);cursor:pointer;opacity:0;z-index:10;background:#0f172a99;border-radius:50%;justify-content:center;align-items:center;width:32px;height:32px;padding:6px;font-size:1rem;transition:all .3s;display:flex;position:absolute;bottom:10px;right:10px}.sentence-card:hover .extract-vocab-btn,.sentence-card.edit-mode .extract-vocab-btn{opacity:1}.extract-vocab-btn:hover{color:var(--text-primary);border-color:var(--accent-hover);background:#ffffff1a}.module-selector{background-color:var(--glass-bg);border:1px solid var(--border);color:var(--text-h);cursor:pointer;appearance:none;background-image:url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");background-position:right 12px center;background-repeat:no-repeat;background-size:16px;border-radius:8px;padding:8px 36px 8px 12px;font-size:16px;transition:all .2s}.module-selector:hover{border-color:var(--accent)}.module-selector:focus{border-color:var(--accent);outline:none;box-shadow:0 0 0 2px #8b5cf633}.module-selector option{color:#f8fafc;background-color:#1e293b}