:root{--primary-bg: #0f172a;--card-bg: rgba(30, 41, 59, .7);--accent-color: #3b82f6;--accent-light: #60a5fa;--text-main: #f1f5f9;--text-secondary: #94a3b8;--success: #10b981;--font-main: "Outfit", sans-serif;--glass-border: rgba(255, 255, 255, .1);--shadow: 0 8px 32px 0 rgba(0, 0, 0, .5)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-main);background-color:var(--primary-bg);background-image:radial-gradient(at 0% 0%,hsla(253,16%,7%,1) 0,transparent 50%),radial-gradient(at 50% 0%,hsla(225,39%,30%,1) 0,transparent 50%),radial-gradient(at 100% 0%,hsla(339,49%,30%,1) 0,transparent 50%);color:var(--text-main);min-height:100vh;display:flex;justify-content:center;align-items:center;overflow-x:hidden}#app{width:100%;max-width:600px;padding:2rem}.verb-card{background:var(--card-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--glass-border);border-radius:24px;padding:2.5rem;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:1.5rem;transition:transform .3s ease,box-shadow .3s ease}.verb-card:hover{transform:translateY(-5px);box-shadow:0 12px 40px #0009}.header{margin-bottom:2rem}.header-meta{display:flex;justify-content:space-between;align-items:center}.progress-container{width:100%;background:#ffffff0d;height:8px;border-radius:4px;overflow:hidden;margin-bottom:.75rem}.progress-bar{height:100%;background:linear-gradient(90deg,var(--accent-color),var(--success));width:0%;transition:width .5s cubic-bezier(.175,.885,.32,1.275)}.progress-text,.card-counter{font-size:.75rem;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.1em;font-weight:700}.hidden{display:none!important}.success-screen{background:var(--card-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--glass-border);border-radius:24px;padding:3rem;text-align:center;box-shadow:var(--shadow);animation:fadeIn .4s ease forwards}.success-content h2{font-size:2rem;margin-bottom:1rem;background:linear-gradient(135deg,var(--accent-light) 0%,var(--success) 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.success-content p{color:var(--text-secondary);margin-bottom:2rem}.trophy-icon{font-size:4rem;margin-bottom:1rem}.root-line{display:flex;align-items:center;justify-content:space-between;gap:1rem}.verb-display{font-size:2.5rem;font-weight:700;letter-spacing:-.02em;background:linear-gradient(135deg,#fff,#cbd5e1);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.meaning-display{font-size:1.25rem;color:var(--text-secondary)}.audio-btn{background:#3b82f626;border:1px solid var(--accent-color);color:var(--accent-light);width:48px;height:48px;border-radius:50%;display:flex;justify-content:center;align-items:center;cursor:pointer;transition:all .2s ease;flex-shrink:0}.audio-btn:hover{background:var(--accent-color);color:#fff;transform:scale(1.1)}.audio-btn svg{width:20px;height:20px}.tense-selector{display:flex;align-items:center;gap:1rem;background:#0003;padding:.75rem 1rem;border-radius:12px;border:1px solid var(--glass-border)}.tense-selector label{font-size:.75rem;text-transform:uppercase;font-weight:700;color:var(--text-secondary)}select{background:transparent;border:none;color:var(--text-main);font-family:var(--font-main);font-size:1rem;cursor:pointer;outline:none}select option{background:var(--primary-bg)}.example-line{display:flex;align-items:flex-start;justify-content:space-between;gap:1.5rem;padding-top:1rem;border-top:1px solid var(--glass-border)}.sentence-display{font-size:1.5rem;font-weight:500;line-height:1.4;color:#fff}.translation-line{color:var(--text-secondary);font-size:1rem;font-style:italic;margin-top:-.5rem}.navigation{display:flex;justify-content:space-between;margin-top:2rem}.nav-btn{background:#ffffff0d;border:1px solid var(--glass-border);color:var(--text-main);padding:.75rem 1.5rem;border-radius:12px;cursor:pointer;font-weight:600;transition:all .2s ease}.nav-btn:hover:not(:disabled){background:#ffffff1a;border-color:var(--text-secondary)}.nav-btn:disabled{opacity:.3;cursor:not-allowed}.nav-btn.primary{background:var(--accent-color);border:none}.nav-btn.primary:hover{background:var(--accent-light)}.header-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.mode-badge{background:#3b82f633;color:var(--accent-light);padding:.25rem .75rem;border-radius:99px;font-size:.7rem;font-weight:800;letter-spacing:.1em;border:1px solid rgba(59,130,246,.3)}.timer-container{display:flex;align-items:center;gap:.5rem;font-weight:700;color:var(--text-main);background:#ffffff0d;padding:.4rem .8rem;border-radius:12px;border:1px solid var(--glass-border)}.timer-icon{width:16px;height:16px;color:var(--accent-light)}.timer-low{color:#ef4444;animation:pulse 1s infinite}@keyframes pulse{0%{opacity:1}50%{opacity:.5}to{opacity:1}}.mode-selector{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-bottom:2rem}.mode-btn{background:#ffffff08;border:1px solid var(--glass-border);color:var(--text-secondary);padding:.75rem;border-radius:12px;cursor:pointer;font-weight:600;transition:all .2s ease}.mode-btn.active{background:#3b82f61a;border-color:var(--accent-color);color:var(--text-main)}.conjugation-container{margin:1rem 0}.conjugation-grid{display:grid;grid-template-columns:1fr 1fr;gap:.75rem}.conj-item{display:flex;flex-direction:column;background:#ffffff08;padding:.75rem 1rem;border-radius:12px;border:1px solid var(--glass-border)}.conj-pronoun{font-size:.65rem;color:var(--text-secondary);text-transform:uppercase;font-weight:700;margin-bottom:.25rem}.conj-verb{font-size:1.1rem;font-weight:600;color:var(--text-main)}.sr-question{text-align:center;margin-bottom:2rem}.sr-question h3{font-size:.8rem;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.1em;margin-bottom:.5rem}.sr-prompt-details{display:flex;flex-direction:column;gap:.5rem}.sr-meaning{font-size:2rem;font-weight:700;color:#fff}.sr-tense-tag{background:var(--accent-color);padding:.25rem .75rem;border-radius:6px;font-size:.7rem;font-weight:800;align-self:center}.sr-test-grid{display:flex;flex-direction:column;gap:2rem}.sr-input-group label{display:block;font-size:1.25rem;font-weight:700;margin-bottom:.75rem;color:var(--accent-light)}.input-wrapper{display:flex;gap:.5rem}.sr-input-group input{flex:1;background:#0000004d;border:2px solid var(--glass-border);border-radius:12px;padding:1rem;color:#fff;font-size:1.25rem;font-family:inherit;outline:none;transition:border-color .2s ease}.sr-input-group input:focus{border-color:var(--accent-color)}.sr-action-btn{background:var(--accent-color);border:none;color:#fff;padding:0 1.5rem;border-radius:12px;font-weight:700;cursor:pointer}.sr-feedback{margin-top:1.5rem;padding:1rem;border-radius:12px;text-align:center;display:flex;align-items:center;justify-content:center;gap:.75rem;font-weight:600}.sr-feedback.success{background:#10b98126;color:#34d399;border:1px solid rgba(16,185,129,.3)}.sr-feedback.error{background:#ef444426;color:#f87171;border:1px solid rgba(239,68,68,.3)}.header-actions{display:flex;align-items:center;gap:1rem}.auth-btn{background:#ffffff0d;border:1px solid var(--glass-border);color:var(--text-main);padding:.5rem 1rem;border-radius:12px;cursor:pointer;display:flex;align-items:center;gap:.5rem;font-weight:600;transition:all .2s ease}.auth-btn:hover{background:#ffffff1a;border-color:var(--accent-light)}.modal-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#000c;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;justify-content:center;align-items:center;z-index:1000;animation:fadeIn .3s ease}.modal-content{background:var(--primary-bg);border:1px solid var(--glass-border);border-radius:24px;padding:2.5rem;width:90%;max-width:400px;position:relative;box-shadow:var(--shadow)}.close-btn{position:absolute;top:1rem;right:1.5rem;background:none;border:none;color:var(--text-secondary);font-size:2rem;cursor:pointer}.auth-tabs{display:flex;margin-bottom:2rem;border-bottom:1px solid var(--glass-border)}.tab-btn{flex:1;background:none;border:none;color:var(--text-secondary);padding:1rem;cursor:pointer;font-weight:600;border-bottom:2px solid transparent;transition:all .2s ease}.tab-btn.active{color:var(--accent-light);border-bottom-color:var(--accent-color)}.auth-form{display:flex;flex-direction:column;gap:1.25rem}.input-field{display:flex;flex-direction:column;gap:.5rem}.input-field label{font-size:.8rem;font-weight:700;color:var(--text-secondary);text-transform:uppercase}.input-field input{background:#0000004d;border:1px solid var(--glass-border);padding:.8rem 1rem;border-radius:12px;color:#fff;outline:none}.auth-submit-btn{background:var(--accent-color);color:#fff;border:none;padding:1rem;border-radius:12px;font-weight:700;cursor:pointer;margin-top:.5rem}.divider{display:flex;align-items:center;text-align:center;margin:1.5rem 0;color:var(--text-secondary);font-size:.8rem}.divider:before,.divider:after{content:"";flex:1;border-bottom:1px solid var(--glass-border)}.divider span{padding:0 1rem}.google-btn{width:100%;background:#fff;color:#333;border:none;padding:.8rem;border-radius:12px;font-weight:600;display:flex;align-items:center;justify-content:center;gap:.75rem;cursor:pointer;transition:transform .2s ease}.google-btn:hover{transform:translateY(-2px)}.google-icon{width:20px;height:20px}#user-profile-view{text-align:center}#user-profile-view h3{margin-bottom:.5rem}#user-profile-view p{color:var(--text-secondary)}.mt-4{margin-top:1rem}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.animate-fade{animation:fadeIn .4s ease forwards}@media(max-width:480px){.conjugation-grid{grid-template-columns:1fr}}.landing-page{max-width:1000px;margin:0 auto;padding:4rem 2rem;text-align:center}.landing-hero{padding:6rem 0;background:radial-gradient(circle at center,rgba(56,189,248,.1) 0%,transparent 70%)}.hero-title{font-size:4.5rem;line-height:1.1;font-weight:800;margin-bottom:1.5rem}.hero-subtitle{font-size:1.5rem;color:var(--text-secondary);max-width:700px;margin:0 auto 3rem;line-height:1.6}.accent-text{background:linear-gradient(135deg,#38bdf8,#818cf8);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.nav-btn.large{padding:1.25rem 3rem;font-size:1.2rem}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;margin:6rem 0}.feature-card{background:#ffffff08;border:1px solid var(--glass-border);padding:3.5rem 2rem;border-radius:32px;transition:all .3s ease;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.feature-card:hover{transform:translateY(-10px);background:#ffffff0d;border-color:var(--accent-light)}.feature-icon{font-size:3rem;margin-bottom:1.5rem}.mobile-instructions{background:#0f172a80;border-radius:40px;padding:4rem 2rem;border:1px solid var(--glass-border);margin-bottom:6rem}.mobile-instructions h2{font-size:2.5rem;margin-bottom:2rem}.instruction-steps{display:flex;justify-content:center;gap:4rem;flex-wrap:wrap}.step-item{display:flex;align-items:center;gap:1.5rem;text-align:left;max-width:300px}.step-num{background:var(--accent-color);width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:50%;font-weight:900;flex-shrink:0}.landing-footer{padding-top:4rem;border-top:1px solid var(--glass-border);color:var(--text-secondary);font-size:.9rem}@media(max-width:768px){.hero-title{font-size:3rem}.hero-subtitle{font-size:1.2rem}.features-grid{grid-template-columns:1fr}.instruction-steps{gap:2rem}}#app.hidden,.landing-page.hidden{display:none!important}.footer-links{margin-top:1rem;display:flex;justify-content:center;gap:2rem}.footer-links a{color:var(--text-secondary);text-decoration:none;font-size:.8rem;transition:color .2s ease}.footer-links a:hover{color:var(--accent-light)}.gdpr-banner{position:fixed;bottom:0;left:0;width:100%;background:var(--card-bg);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-top:1px solid var(--glass-border);padding:1.5rem 2rem;z-index:2000;animation:slideUp .5s ease}.gdpr-content{max-width:1000px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;gap:2rem}.gdpr-content p{color:var(--text-secondary);font-size:.9rem;line-height:1.5}.gdpr-content a{color:var(--accent-light);text-decoration:underline}.nav-btn.small{padding:.5rem 1.5rem;font-size:.85rem}.nav-btn.danger{background:#ef44441a;border:1px solid #ef4444;color:#f87171}.nav-btn.danger:hover{background:#ef4444;color:#fff}.policy-content{max-width:600px;max-height:80vh;overflow-y:auto}.policy-text h2{font-size:1.5rem;margin-bottom:1.5rem;color:var(--accent-light)}.policy-text h3{font-size:1.1rem;margin:1.5rem 0 .5rem;color:#fff}.policy-text p,.policy-text li{color:var(--text-secondary);font-size:.95rem;line-height:1.6;margin-bottom:1rem}@keyframes slideUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}@media(max-width:768px){.gdpr-content{flex-direction:column;text-align:center;gap:1.5rem}}