@import "https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700;800;900&display=swap";.btn{text-transform:uppercase;letter-spacing:.8px;-webkit-user-select:none;user-select:none;border-radius:12px;justify-content:center;align-items:center;font-weight:700;transition:all .2s;display:inline-flex;position:relative}.btn:active{margin-top:4px;transform:translateY(4px);border-bottom-width:0!important}.btn-sm{height:40px;padding:0 16px;font-size:14px}.btn-md{height:50px;padding:0 24px;font-size:16px}.btn-lg{height:60px;padding:0 32px;font-size:18px}.btn-primary{background-color:var(--green);color:#fff;border-bottom:4px solid var(--green-shadow)}.btn-primary:hover{background-color:var(--green-hover)}.btn-secondary{background-color:var(--blue);color:#fff;border-bottom:4px solid var(--blue-shadow)}.btn-secondary:hover{background-color:var(--blue-hover)}.btn-danger{background-color:var(--red);color:#fff;border-bottom:4px solid var(--red-shadow)}.btn-danger:hover{background-color:var(--red-hover)}.btn-ghost{color:var(--text);background-color:#0000;border-bottom:2px solid #0000}.btn-ghost:hover{background-color:var(--grey)}.btn-sidebar{color:var(--text);text-transform:none;letter-spacing:normal;background-color:#0000;border:2px solid #0000;border-radius:12px;justify-content:flex-start;gap:16px;font-size:15px;font-weight:700}.btn-sidebar:hover{background-color:var(--grey)}.btn-active{color:var(--blue);background-color:#ddf4ff;border:2px solid #84d8ff}.btn-active:hover{background-color:#ddf4ff}.btn-sidebarOutline{color:var(--blue);border:2px solid var(--border);border-bottom:4px solid var(--border);background-color:#fff}.btn-sidebarOutline:hover{background-color:var(--grey)}.sidebar{border-right:2px solid var(--border);background-color:var(--bg);flex-direction:column;width:256px;height:100vh;padding:24px;display:flex;position:fixed;top:0;left:0}.sidebar-header{margin-bottom:32px;padding-left:16px}.sidebar-logo{color:var(--green);letter-spacing:-.5px;font-size:24px;font-weight:800}.sidebar-nav{flex-direction:column;gap:8px;width:100%;display:flex}.nav-button{color:#777;width:100%}.nav-active{color:var(--blue);background-color:#ddf4ff;border:2px solid #84d8ff}@media (width<=768px){.sidebar{border-right:none;border-top:2px solid var(--border);z-index:50;flex-direction:row;justify-content:space-around;align-items:center;width:100%;height:80px;padding:0 16px;top:auto;bottom:0}.sidebar-header{display:none}.sidebar-nav{flex-direction:row;justify-content:space-around;gap:0}.nav-label{display:none}.nav-button{justify-content:center;width:60px;padding:0}}.learn-container{flex-direction:column;width:100%;max-width:600px;margin:0 auto;padding-bottom:60px;display:flex}.unit-section{margin-bottom:48px}.unit-header{color:#fff;border-radius:16px;justify-content:space-between;align-items:center;margin-bottom:24px;padding:24px;display:flex}.unit-title{margin-bottom:8px;font-size:24px;font-weight:800}.unit-desc{opacity:.9;font-size:16px}.unit-btn{color:#fff;text-transform:uppercase;background:0 0;border:2px solid #fff;border-bottom-width:4px;border-radius:12px;padding:12px 24px;font-weight:800;transition:all .2s}.unit-btn:active{border-bottom-width:2px;margin-top:2px;transform:translateY(2px)}.unit-path{flex-direction:column;align-items:center;gap:32px;display:flex;position:relative}.lesson-node-container{justify-content:center;align-items:center;width:100px;height:100px;display:flex;position:relative}.path-line{background-color:var(--grey);z-index:0;width:2px;height:32px;position:absolute;top:100%;left:50%}.lesson-node{z-index:10;cursor:pointer;border:none;border-radius:50%;justify-content:center;align-items:center;width:72px;height:72px;transition:transform .2s;display:flex;position:relative}.lesson-node:active{transform:translateY(4px);box-shadow:inset 0 -4px #0000001a!important}.node-completed{box-shadow:inset 0 -8px #0003}.node-current{box-shadow:inset 0 -8px 0 #0003, 0 0 0 4px white, 0 0 0 8px var(--grey);animation:2s infinite pulse}.node-locked{background-color:var(--grey);box-shadow:inset 0 -8px 0 var(--grey-shadow);cursor:default}.node-locked:active{transform:none}.floating-start{color:var(--green);border:2px solid var(--grey);text-transform:uppercase;z-index:20;background-color:#fff;border-radius:8px;padding:8px 16px;font-weight:800;animation:2s infinite bounce;position:absolute;top:-50px}.triangle{border-bottom:2px solid var(--grey);border-right:2px solid var(--grey);background-color:#fff;width:10px;height:10px;position:absolute;bottom:-6px;left:50%;transform:translate(-50%)rotate(45deg)}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}@keyframes pulse{0%{box-shadow:inset 0 -8px #0003,0 0 0 4px #fff,0 0 0 8px #e5e5e5}50%{box-shadow:inset 0 -8px #0003,0 0 0 4px #fff,0 0 0 12px #e5e5e580}to{box-shadow:inset 0 -8px #0003,0 0 0 4px #fff,0 0 0 8px #e5e5e5}}.lesson-page{background-color:var(--bg);z-index:100;flex-direction:column;width:100vw;height:100dvh;display:flex;position:fixed;top:0;left:0}.lesson-header{align-items:center;gap:16px;width:100%;max-width:1056px;margin:0 auto;padding:24px;display:flex}.close-btn{border-radius:50%;padding:8px;transition:background-color .2s}.close-btn:hover{background-color:var(--grey)}.progress-bar-container{background-color:var(--grey);border-radius:8px;flex:1;height:16px;overflow:hidden}.progress-bar{background-color:var(--green);border-radius:8px;height:100%;transition:width .3s}.lesson-content{flex-direction:column;flex:1;justify-content:center;width:100%;max-width:600px;margin:0 auto;padding:24px;display:flex;overflow-y:auto}.question-title{color:var(--text);margin-bottom:32px;font-size:32px;font-weight:800}.listening-ui{justify-content:center;margin-bottom:48px;display:flex}.audio-btn{background-color:var(--blue);border-bottom:8px solid var(--blue-shadow);border-radius:24px;justify-content:center;align-items:center;width:150px;height:150px;transition:all .2s;display:flex}.audio-btn:active{border-bottom-width:4px;transform:translateY(4px)}.select-options{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:16px;display:grid}.select-option{border:2px solid var(--border);border-bottom:4px solid var(--border);cursor:pointer;background-color:#fff;border-radius:16px;flex-direction:column;align-items:center;gap:16px;padding:24px;transition:all .2s;display:flex}.select-option:active{border-bottom-width:2px;transform:translateY(2px)}.select-selected{border-color:var(--blue);border-bottom-color:var(--blue-shadow);background-color:#ddf4ff}.option-image{font-size:64px}.option-text{color:var(--text);font-size:20px;font-weight:800}.translate-container{flex-direction:column;gap:32px;display:flex}.translate-answer-area{border-top:2px solid var(--border);border-bottom:2px solid var(--border);flex-wrap:wrap;align-content:flex-start;gap:12px;min-height:80px;padding:16px 0;display:flex}.translate-options-area{flex-wrap:wrap;justify-content:center;gap:12px;display:flex}.translate-word-btn{border:2px solid var(--border);border-bottom:4px solid var(--border);color:var(--text);cursor:pointer;background-color:#fff;border-radius:12px;padding:12px 20px;font-size:18px;font-weight:700;transition:all .2s}.translate-word-btn:active:not(:disabled){border-bottom-width:2px;transform:translateY(2px)}.translate-word-hidden{background-color:var(--grey);border-color:var(--grey);color:#0000;cursor:default}.lesson-footer{border-top:2px solid var(--border);background-color:#fff;padding:24px;transition:background-color .3s}.footer-correct{background-color:#d7ffb8;border-top-color:#b3ea81}.footer-correct .footer-message{color:var(--green-hover)}.footer-wrong{background-color:#ffdfe0;border-top-color:#ffb3b8}.footer-wrong .footer-message{color:var(--red-hover)}.footer-content{justify-content:space-between;align-items:center;width:100%;max-width:1056px;margin:0 auto;display:flex}.footer-message h2{font-size:24px;font-weight:800}.check-btn{min-width:150px}.placeholder-text{text-align:center;color:#888;font-size:20px;font-weight:700}.auth-container{background-color:#fff;justify-content:center;align-items:center;width:100%;min-height:100vh;display:flex}.auth-card{text-align:center;border:2px solid #e5e5e5;border-radius:16px;width:100%;max-width:400px;padding:32px;box-shadow:0 4px #e5e5e5}.auth-title{color:#58cc02;letter-spacing:-1px;margin-bottom:8px;font-size:32px;font-weight:800}.auth-subtitle{color:#4b4b4b;margin-bottom:24px;font-size:18px;font-weight:700}.auth-form{flex-direction:column;gap:16px;display:flex}.auth-input{color:#4b4b4b;box-sizing:border-box;background-color:#f7f7f7;border:2px solid #e5e5e5;border-radius:12px;width:100%;padding:12px 16px;font-family:inherit;font-size:16px;transition:all .2s}.auth-input:focus{background-color:#fff;border-color:#1cb0f6;outline:none}.auth-submit{width:100%;margin-top:8px}.auth-error{color:#ff4b4b;background-color:#ffebf0;border-radius:8px;margin-bottom:16px;padding:12px;font-size:14px;font-weight:700}.auth-toggle{color:#777;margin-top:24px;font-size:15px;font-weight:700}.auth-link{color:#1cb0f6;cursor:pointer}.auth-link:hover{filter:brightness(.9)}.profile-container{width:100%;max-width:600px;margin:0 auto;padding:24px}.profile-content{flex-direction:column;gap:32px;display:flex}.profile-title{color:#4b4b4b;text-align:center;border-bottom:2px solid #e5e5e5;padding-bottom:24px;font-size:28px;font-weight:800}.profile-section{flex-direction:column;gap:16px;display:flex}.section-title{color:#a1a1a1;letter-spacing:.8px;font-size:17px;font-weight:800}.info-card,.management-card{background-color:#fff;border:2px solid #e5e5e5;border-radius:16px}.info-row{border-bottom:2px solid #e5e5e5;justify-content:space-between;padding:16px 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(width<=768px){.main-content{padding-bottom:80px;padding-left:0}}:root{--green:#58cc02;--green-hover:#46a302;--green-shadow:#58a700;--blue:#1cb0f6;--blue-hover:#1899d6;--blue-shadow:#1185ba;--red:#ff4b4b;--red-hover:#ea2b2b;--red-shadow:#ea2b2b;--grey:#e5e5e5;--grey-hover:#d5d5d5;--grey-shadow:#b7b7b7;--dark-grey:#4b4b4b;--dark-grey-hover:#373737;--border:#e5e5e5;--bg:#fff;--text:#3c3c3c}*{box-sizing:border-box;margin:0;padding:0;font-family:Nunito,sans-serif}body{background-color:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}button{cursor:pointer;background:0 0;border:none;font-family:Nunito,sans-serif}a{color:inherit;text-decoration:none}.flex{display:flex}.flex-col{flex-direction:column;display:flex}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.flex-1{flex:1}.w-full{width:100%}.h-full{height:100%}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:#e5e5e5;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#d5d5d5}