@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";:root{--bg-dark:#0f172a;--bg-card:#1e293bb3;--text-main:#f8fafc;--text-muted:#94a3b8;--accent-primary:#a855f7;--accent-secondary:#06b6d4;--success:#10b981;--danger:#ef4444;--warning:#f59e0b;--glass-border:#ffffff1a;--glass-shadow:0 8px 32px 0 #0000005e;--card-gradient:linear-gradient(145deg, #1e293be6, #0f172ae6);--btn-transparent:#ffffff1a;--btn-transparent-hover:#fff3;--border-radius:16px;--transition:all .3s ease}body.light-mode{--bg-dark:#f1f5f9;--bg-card:#fffc;--text-main:#0f172a;--text-muted:#64748b;--accent-primary:#8b5cf6;--accent-secondary:#0ea5e9;--glass-border:#0000001a;--glass-shadow:0 8px 32px 0 #0000001a;--card-gradient:linear-gradient(145deg, #fff, #f1f5f9);--btn-transparent:#0000000d;--btn-transparent-hover:#0000001a}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-dark);color:var(--text-main);background:radial-gradient(circle at 15% 50%, #a855f726, transparent 25%), radial-gradient(circle at 85% 30%, #06b6d426, transparent 25%), var(--bg-dark);background-attachment:fixed;flex-direction:column;min-height:100vh;font-family:Inter,system-ui,-apple-system,sans-serif;display:flex}button{cursor:pointer;transition:var(--transition);border:none;outline:none;font-family:inherit}.glass-panel{background:var(--bg-card);-webkit-backdrop-filter:blur(12px);border:1px solid var(--glass-border);border-radius:var(--border-radius);box-shadow:var(--glass-shadow)}.login-screen-container{background-color:var(--background-color,#1a1a1a);width:100vw;height:100vh;color:var(--text-color,#fff);justify-content:center;align-items:center;font-family:Inter,sans-serif;display:flex}.login-card{background-color:var(--card-bg,#2a2a2a);text-align:center;border:1px solid var(--border-color,#333);border-radius:16px;width:90%;max-width:400px;padding:40px;box-shadow:0 10px 30px #0000004d}.login-card h1{background:linear-gradient(135deg,#ff6b6b,#ff8e53);-webkit-text-fill-color:transparent;-webkit-background-clip:text;margin-top:0;margin-bottom:10px;font-size:28px}.login-card p{color:#a0a0a0;margin-bottom:30px;font-size:15px}.login-error{color:#ff4d4d;background-color:#ff4d4d1a;border-radius:8px;margin-bottom:20px;padding:10px;font-size:14px}.google-login-btn{color:#333;cursor:pointer;background-color:#fff;border:none;border-radius:8px;justify-content:center;align-items:center;width:100%;padding:12px 20px;font-size:16px;font-weight:600;transition:all .2s;display:flex;box-shadow:0 2px 5px #0000001a}.google-login-btn:hover{background-color:#f1f1f1;transform:translateY(-2px);box-shadow:0 4px 10px #00000026}.google-login-btn:active{transform:translateY(0)}.google-login-btn:disabled{opacity:.7;cursor:not-allowed;transform:none}.google-icon{width:24px;height:24px;margin-right:12px}.ReloadPrompt-container{width:0;height:0;margin:0;padding:0}.ReloadPrompt-toast{border:1px solid var(--glass-border);z-index:9999;text-align:left;background-color:var(--bg-card);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);color:var(--text-main);border-radius:8px;margin:16px;padding:12px;animation:.3s ease-out slideUp;position:fixed;bottom:0;right:0;box-shadow:0 4px 15px #0000004d}.ReloadPrompt-message{margin-bottom:8px;font-size:.95rem}.ReloadPrompt-buttons{gap:8px;display:flex}.ReloadPrompt-toast-button{background:var(--accent-primary);color:#fff;cursor:pointer;border:none;border-radius:6px;padding:6px 12px;font-size:.9rem;font-weight:500}.ReloadPrompt-toast-button.close-btn{border:1px solid var(--glass-border);color:var(--text-muted);background:0 0}@keyframes slideUp{0%{opacity:0;transform:translateY(100%)}to{opacity:1;transform:translateY(0)}}.app-container{flex-direction:column;align-items:center;max-width:800px;min-height:100vh;margin:0 auto;padding:2rem;display:flex}header{text-align:center;width:100%;margin-bottom:2rem}h1{background:linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));-webkit-text-fill-color:transparent;-webkit-background-clip:text;margin-bottom:.5rem;font-size:2.5rem;font-weight:700}.subtitle{color:var(--text-muted);font-size:1.1rem}main{flex-direction:column;flex-grow:1;align-items:center;width:100%;display:flex}.flashcard-container{perspective:1000px;width:100%;max-width:500px;height:350px;margin-bottom:2rem}.flashcard{width:100%;height:100%;transform-style:preserve-3d;cursor:pointer;transition:transform .6s cubic-bezier(.4,.2,.2,1);position:relative}.flashcard.flipped{transform:rotateY(180deg)}.flashcard-face{backface-visibility:hidden;text-align:center;flex-direction:column;justify-content:center;align-items:center;width:100%;height:100%;padding:2rem;display:flex;position:absolute}.flashcard-front{background:var(--card-gradient)}.flashcard-back{background:var(--card-gradient);border-color:var(--accent-primary);transform:rotateY(180deg)}.word-type{color:var(--text-muted);background:#ffffff0d;border-radius:20px;padding:.25rem .75rem;font-size:.8rem;position:absolute;top:1rem;right:1rem}.word-main{margin-bottom:1rem;font-size:2.5rem;font-weight:700}.word-translation{color:var(--accent-secondary);margin-bottom:1rem;font-size:2rem;font-weight:600}.audio-btn{background:var(--btn-transparent);color:var(--text-main);border-radius:50%;justify-content:center;align-items:center;width:50px;height:50px;font-size:1.2rem;display:flex;position:absolute;bottom:1.5rem}.audio-btn:hover{background:var(--accent-primary);transform:scale(1.1)}.controls{justify-content:center;gap:1.5rem;width:100%;max-width:500px;display:flex}.btn{color:#fff;border-radius:30px;justify-content:center;align-items:center;gap:.5rem;min-width:160px;padding:1rem 2rem;font-size:1.1rem;font-weight:600;display:flex}.btn-know{background:linear-gradient(135deg, var(--success), #059669);box-shadow:0 4px 15px #10b9814d}.btn-dont-know{background:linear-gradient(135deg, var(--danger), #dc2626);box-shadow:0 4px 15px #ef44444d}.btn:hover{filter:brightness(1.1);transform:translateY(-3px)}.btn:active{transform:translateY(1px)}.btn:disabled{opacity:.5;cursor:not-allowed;filter:grayscale();box-shadow:none;transform:none}.progress-container{width:100%;max-width:500px;margin-bottom:2rem}.stats{color:var(--text-muted);justify-content:space-between;margin-bottom:.5rem;font-size:.9rem;display:flex}.progress-bar-bg{background:#ffffff1a;border-radius:10px;width:100%;height:8px;overflow:hidden}.progress-bar-fill{background:linear-gradient(90deg, var(--accent-secondary), var(--accent-primary));border-radius:10px;height:100%;transition:width .5s ease-out}.quiz-container,.typing-container{text-align:center;flex-direction:column;align-items:center;width:100%;max-width:500px;margin-bottom:2rem;padding:2.5rem;display:flex}.quiz-label{color:var(--text-muted);font-size:1rem;display:block}.quiz-options{flex-direction:column;gap:1rem;width:100%;margin-top:1.5rem;display:flex}.quiz-btn{background:var(--btn-transparent);border:1px solid var(--glass-border);color:var(--text-main);transition:var(--transition);border-radius:12px;padding:1rem;font-size:1.1rem}.quiz-btn:hover:not(:disabled){background:#ffffff26;transform:translateY(-2px)}.quiz-btn.correct{border-color:var(--success);background:#10b98133}.quiz-btn.incorrect{border-color:var(--danger);background:#ef444433}.hint-btn{background:var(--btn-transparent);color:var(--text-main);border-radius:20px;padding:.5rem 1rem;font-size:.9rem}.hint-btn:hover{background:#fff3}.typing-form{flex-direction:column;gap:1rem;width:100%;margin-top:1rem;display:flex}.typing-input{background:var(--btn-transparent);border:1px solid var(--glass-border);color:var(--text-main);text-align:center;transition:var(--transition);border-radius:12px;outline:none;padding:1rem;font-family:inherit;font-size:1.2rem}.typing-input:focus{border-color:var(--accent-primary);box-shadow:0 0 10px #a855f74d}.typing-input.correct-input{border-color:var(--success);background:#10b9811a}.typing-input.incorrect-input{border-color:var(--danger);background:#ef44441a}.btn-submit{background:linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));width:100%}.btn-submit:disabled{opacity:.5;cursor:not-allowed;transform:none}.correction{border:1px solid var(--danger);color:var(--text-main);background:#ef44441a;border-radius:8px;margin-top:1.5rem;padding:1rem}.mode-tabs{flex-wrap:wrap;justify-content:center;align-items:center;gap:.5rem;margin-top:1.5rem;margin-bottom:2rem;display:flex}.mode-tab{background:var(--btn-transparent);border:1px solid var(--glass-border);color:var(--text-main);cursor:pointer;transition:var(--transition);border-radius:20px;padding:.6rem 1.2rem;font-size:.95rem;font-weight:500}.mode-tab:hover{background:var(--btn-transparent-hover)}.mode-tab.active{background:linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));color:#fff;border-color:#0000;box-shadow:0 4px 12px #a855f74d}.direction-toggle{background:var(--btn-transparent);border:1px solid var(--glass-border);border-radius:30px;align-items:center;margin-top:1rem;padding:.3rem;display:flex}.direction-btn{color:var(--text-muted);background:0 0;border-radius:25px;padding:.5rem 1rem;font-size:.9rem;font-weight:600}.direction-btn.active{background:var(--bg-card);color:var(--text-main);box-shadow:0 2px 8px #0003}.word-list-scroll::-webkit-scrollbar{width:8px}.word-list-scroll::-webkit-scrollbar-track{background:#0000000d;border-radius:10px}.word-list-scroll::-webkit-scrollbar-thumb{background:var(--btn-transparent-hover);border-radius:10px}.word-list-scroll::-webkit-scrollbar-thumb:hover{background:var(--accent-primary)}.crossword-container{border-radius:16px;flex-direction:column;width:100%;max-width:900px;margin:0 auto;padding:1.5rem;display:flex}.cw-layout{flex-direction:column;gap:2rem;width:100%;margin-top:1rem;display:flex}@media (width>=992px){.cw-layout{flex-direction:row;align-items:flex-start}}.cw-grid-wrapper{background:0 0;border-radius:12px;flex:2;justify-content:flex-start;width:100%;min-width:0;padding:1rem;display:flex;overflow:auto}.cw-grid{background:0 0;gap:2px;margin:0 auto;padding:2px;display:grid}.cw-empty{background:0 0;width:32px;height:32px}@media (width>=600px){.cw-empty,.cw-cell{width:40px;height:40px}}.cw-cell{background:var(--bg-card);border:1px solid var(--glass-border);color:var(--text-main);cursor:pointer;-webkit-user-select:none;user-select:none;justify-content:center;align-items:center;font-size:1.1rem;font-weight:700;transition:all .2s;display:flex;position:relative;box-shadow:0 2px 4px #0000001a}.cw-cell:hover{background:var(--bg-dark)}.cw-active-word{background:#3b82f626;border-color:#3b82f666}.cw-active-cell{color:#fff;z-index:2;box-shadow:0 0 0 2px var(--accent-primary);border-color:#fff;background:var(--accent-primary)!important}.cw-number{color:var(--text-muted);font-size:.6rem;font-weight:400;line-height:1;position:absolute;top:2px;left:2px}.cw-correct{color:var(--success)}.cw-error{color:var(--danger)}.cw-clues{flex-direction:column;flex:1;gap:1.5rem;width:100%;min-width:280px;display:flex}.cw-clues-section h3{border-bottom:1px solid var(--glass-border);margin-top:0;margin-bottom:.5rem;padding-bottom:.5rem;font-size:1.1rem}.cw-clue{background:var(--bg-dark);color:var(--text-muted);cursor:pointer;border:1px solid #0000;border-radius:8px;margin-bottom:.5rem;padding:.5rem;font-size:.95rem;transition:all .2s}.cw-clue:hover{background:var(--bg-card);color:var(--text-main)}.cw-clue.active{border-color:var(--accent-primary);color:var(--text-main);background:#3b82f61a}@media (width<=600px){.app-container{padding:1rem}h1{font-size:2rem}.mode-tabs{gap:.3rem}.mode-tab{padding:.5rem .8rem;font-size:.85rem}.controls{flex-direction:column;gap:1rem}.btn{width:100%;padding:.8rem 1rem}.flashcard-container{height:300px}.word-main{font-size:2rem}.word-translation{font-size:1.5rem}.cw-empty,.cw-cell{width:32px;height:32px;font-size:1rem}}.scramble-container{flex-direction:column;align-items:center;display:flex}.scramble-slots{flex-wrap:wrap;justify-content:center;gap:.5rem;margin:2rem 0;display:flex}.scramble-slot{border-bottom:3px solid var(--glass-border);width:45px;height:50px;color:var(--text-main);cursor:pointer;justify-content:center;align-items:center;font-size:1.5rem;font-weight:700;transition:all .3s;display:flex}.scramble-slot.filled{border-bottom-color:var(--accent-primary);background:var(--btn-transparent);border-radius:8px 8px 0 0;box-shadow:0 -2px 10px #a855f71a}.scramble-slot.correct{color:var(--success);border-bottom-color:var(--success);background:#10b9811a}.scramble-slot.incorrect{color:var(--danger);border-bottom-color:var(--danger);background:#ef44441a}.scramble-pool{flex-wrap:wrap;justify-content:center;gap:.8rem;min-height:60px;margin-top:1rem;display:flex}.scramble-tile{background:var(--bg-card);border:1px solid var(--glass-border);width:45px;height:50px;color:var(--text-main);cursor:pointer;border-radius:8px;justify-content:center;align-items:center;font-size:1.5rem;font-weight:700;transition:transform .2s,background .2s;display:flex;box-shadow:0 4px 6px #0000001a}.scramble-tile:hover{background:var(--btn-transparent-hover);border-color:var(--accent-primary);transform:translateY(-3px)}.scramble-tile:active{transform:translateY(1px)}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-5px)}75%{transform:translate(5px)}}@keyframes pulse-green{0%{transform:scale(1)}50%{transform:scale(1.05)}to{transform:scale(1)}}.error-shake{animation:.4s ease-in-out shake}.correct-shake{animation:.5s ease-in-out pulse-green}.hangman-container{flex-direction:column;align-items:center;display:flex}.hangman-lives{gap:.5rem;margin-bottom:2rem;font-size:1.5rem;display:flex}.heart{transition:all .3s}.heart.lost{filter:grayscale()opacity(.5);transform:scale(.8)}.hangman-word{flex-wrap:wrap;justify-content:center;gap:.5rem;margin:1.5rem 0 3rem;display:flex}.hangman-blank{border-bottom:4px solid var(--text-main);width:40px;height:50px;color:var(--text-main);justify-content:center;align-items:flex-end;padding-bottom:5px;font-size:2rem;font-weight:700;transition:all .3s;display:flex}.hangman-blank.revealed{border-bottom-color:var(--success);color:var(--success)}.hangman-blank.missed{border-bottom-color:var(--danger);color:var(--danger)}.hangman-space{width:20px;color:var(--text-muted);justify-content:center;align-items:center;font-size:2rem;display:flex}.hangman-keyboard{flex-wrap:wrap;justify-content:center;gap:.5rem;max-width:500px;display:flex}.hangman-key{background:var(--bg-card);border:1px solid var(--glass-border);min-width:40px;height:45px;color:var(--text-main);cursor:pointer;border-radius:8px;justify-content:center;align-items:center;font-size:1.2rem;font-weight:600;transition:all .2s;display:flex;box-shadow:0 2px 4px #0000001a}.hangman-key:hover:not(:disabled){background:var(--btn-transparent-hover);transform:translateY(-2px)}.hangman-key:disabled{opacity:.5;cursor:not-allowed;box-shadow:none;transform:none}.hangman-key.correct{border-color:var(--success);color:var(--success);opacity:1;background:#10b98133}.hangman-key.wrong{border-color:var(--danger);color:var(--danger);opacity:1;background:#ef444433}@media (width<=600px){.scramble-slot,.scramble-tile{width:35px;height:40px;font-size:1.2rem}.hangman-blank{width:30px;height:40px;font-size:1.5rem}.hangman-key{min-width:32px;height:38px;padding:0 5px;font-size:1rem}}