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button:hover{background:#fff3}.show-image-btn{color:#fff;cursor:pointer;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:3;background:#ffffff1a;border:1px solid #fff3;border-radius:50%;justify-content:center;align-items:center;padding:.5rem;font-size:1.5rem;transition:all .3s;display:flex;position:absolute;bottom:2rem;right:2rem}@media (max-width:768px){.flashcard-learning{padding:1rem}.learning-header{margin-bottom:1rem}.header-actions{display:none}.flashcard{max-width:100%;height:350px}.card-image{font-size:5rem}.card-title{font-size:2rem}.card-description{font-size:1rem}}@media (max-width:480px){.card-image{font-size:4rem}.card-title{font-size:1.8rem}.card-content{padding:1.5rem}}.control-btn{transition:all .2s;position:relative}.control-btn:hover{transform:scale(1.1)}.control-btn:active{transform:scale(.95)}.control-btn:focus{outline-offset:2px;outline:2px solid #3b82f6}.fancy-error-container{justify-content:center;align-items:center;display:flex}.error-background{pointer-events:none;width:100%;height:100%;position:absolute;top:0;left:0}.floating-shape{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#ffffff1a;border-radius:50%;position:absolute}.shape-1{background:#ffffff26;width:100px;height:100px;top:10%;left:10%}.shape-2{background:#ffffff1a;width:150px;height:150px;top:60%;right:10%}.shape-3{background:#fff3;width:80px;height:80px;bottom:20%;left:20%}.fancy-error-content{text-align:center;color:#fff;z-index:2;max-width:600px;position:relative}.error-number{-webkit-text-fill-color:transparent;text-shadow:0 10px 30px #0000004d;background:linear-gradient(45deg,#fff,#f0f0f0);-webkit-background-clip:text;background-clip:text;margin-bottom:1rem;font-size:8rem;font-weight:900}.error-icon{filter:drop-shadow(0 5px 15px #0000004d);margin-bottom:1.5rem;font-size:4rem}.error-title{text-shadow:0 2px 10px #0000004d;margin-bottom:1rem;font-size:2.5rem;font-weight:700}.error-message{opacity:.9;text-shadow:0 1px 5px #0000004d;margin-bottom:2.5rem;font-size:1.2rem;line-height:1.6}.error-actions{flex-wrap:wrap;justify-content:center;gap:1rem;display:flex}.error-button{cursor:pointer;border:none;border-radius:50px;padding:12px 30px;font-size:1rem;font-weight:600;text-decoration:none;transition:all .3s;display:inline-block}.error-button.primary{color:#667eea;background:#fff;box-shadow:0 5px 15px #0003}.error-button.secondary{color:#fff;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:0 0;border:2px solid #ffffff80}.error-button:hover{transform:translateY(-2px)}.error-decoration{pointer-events:none;z-index:-1;width:300px;height:300px;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.decoration-circle{border:2px dashed #fff3;border-radius:50%;width:100%;height:100%}@media (max-width:768px){.fancy-error-container{padding:1rem}.error-number{font-size:6rem}.error-title{font-size:2rem}.error-message{font-size:1.1rem}.error-actions{flex-direction:column;align-items:center}.error-button{width:200px}.shape-1,.shape-2,.shape-3{display:none}}@media (max-width:480px){.error-number{font-size:4rem}.error-title{font-size:1.5rem}.error-message{font-size:1rem}}@tailwind base;@tailwind components;@tailwind utilities;:root{--bg:#fffdf6;--accent1:#ff6f91;--accent2:#ff9671;--accent3:#ffc75f;--primary:#ffb703;--muted:#7b8794;--card:#fff}*{box-sizing:border-box;background:0 0;margin:0;padding:0}html{background:0 0;height:100%}body{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);background-color:unset;overscroll-behavior-y:contain;background-attachment:fixed;min-height:100vh;margin:0;padding:0;font-family:"Baloo 2",cursive;overflow-x:hidden}.app{background:linear-gradient(135deg,#1a1a2e 0%,#16213e 50%,#0f3460 100%);min-height:100vh;position:relative}.main-content{z-index:2;position:relative}.footer{z-index:1;text-align:center;color:#fff;opacity:.8;padding:2rem;position:relative}.animated-bg{z-index:1;pointer-events:none;width:100%;height:100%;position:fixed;top:0;left:0}.floating-shape{background:#ffffff1a;border-radius:50%;animation:6s ease-in-out infinite float;position:absolute}.shape1{width:100px;height:100px;animation-delay:0s;top:10%;left:10%}.shape2{width:150px;height:150px;animation-delay:2s;top:60%;right:10%}.shape3{width:80px;height:80px;animation-delay:4s;bottom:20%;left:20%}.shape4{width:120px;height:120px;animation-delay:1s;top:30%;right:20%}.shape5{width:90px;height:90px;animation-delay:3s;bottom:10%;right:30%}.header{z-index:3;justify-content:space-between;align-items:center;padding:1.5rem 2rem;display:flex;position:relative}.logo{background:linear-gradient(135deg,var(--accent1),var(--accent2),var(--accent3));color:#fff;border-radius:12px;justify-content:center;align-items:center;width:56px;height:56px;font-family:"Baloo 2",cursive;font-size:20px;font-weight:800;display:flex;box-shadow:0 8px 18px #0000001f}.logo-text{color:#fff;font-size:3rem;text-decoration:none}.logo i{color:gold;animation:4s linear infinite spin}@media (max-width:768px){.logo-text{font-size:1.5rem}}.brand{pointer-events:auto;align-items:center;gap:12px;display:flex}.title{color:#2b2b2b;font-family:"Baloo 2",cursive;font-size:20px}.sub{color:var(--muted);margin-top:2px;font-size:12px}.language-toggle{color:#fff;cursor:pointer;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#fff3;border:2px solid #ffffff4d;border-radius:25px;align-items:center;gap:.5rem;padding:.5rem 1rem;font-family:inherit;font-size:1.3em;font-weight:600;transition:all .3s;display:flex}.language-toggle:hover{background:#ffffff4d;transform:scale(1.05)}@media (max-width:768px){.language-toggle{font-size:unset}}@media (max-width:480px){.language-toggle{font-size:unset}.language-switcher .lang-text{display:none}}