:root{--bg-color: #0f172a;--card-bg: #1e293b;--text-primary: #f8fafc;--text-secondary: #94a3b8;--accent-color: #38bdf8;--accent-hover: #0ea5e9;--glass-bg: rgba(30, 41, 59, .7);--border-color: rgba(255, 255, 255, .1)}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-primary);font-family:Inter,sans-serif;line-height:1.6;min-height:100vh;display:flex;justify-content:center;padding:2rem 1rem}#app{width:100%;max-width:600px}header{text-align:center;margin-bottom:3rem}h1{font-family:Outfit,sans-serif;font-size:2.5rem;background:linear-gradient(135deg,#38bdf8,#818cf8);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:.5rem}.subtitle{color:var(--text-secondary);font-size:1.1rem}.view-enter{animation:slideUpFade .4s cubic-bezier(.16,1,.3,1) forwards}@keyframes slideUpFade{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.card{background:var(--glass-bg);border:1px solid var(--border-color);border-radius:1.5rem;padding:2.5rem;box-shadow:0 20px 40px -15px #0000004d;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);transition:transform .3s cubic-bezier(.16,1,.3,1),box-shadow .3s ease}.card:hover{box-shadow:0 30px 60px -12px #0006}#step-content{margin-bottom:2rem}h2{font-size:1.5rem;margin-bottom:1.5rem}.option-list{display:grid;gap:1rem}.option-item{background:#ffffff08;border:1px solid var(--border-color);padding:1.25rem;border-radius:1rem;cursor:pointer;transition:all .3s cubic-bezier(.16,1,.3,1)}.option-item:hover{background:#ffffff14;border-color:#fff3;transform:translate(4px)}.option-item.selected{background:#38bdf81a;border-color:var(--accent-color);box-shadow:0 0 20px #38bdf81a}button{width:100%;padding:1rem;border-radius:.75rem;font-weight:600;font-size:1rem;cursor:pointer;transition:all .3s cubic-bezier(.16,1,.3,1);border:none;position:relative;overflow:hidden}button.primary{background:linear-gradient(135deg,var(--accent-color) 0%,#818cf8 100%);color:#fff;box-shadow:0 4px 12px #38bdf84d}button.primary:hover{transform:translateY(-2px);box-shadow:0 8px 20px #38bdf866;filter:brightness(1.1)}button.primary:active{transform:translateY(0)}button.secondary{background:#ffffff08;color:var(--text-secondary);border:1px solid var(--border-color);margin-top:.5rem}button.secondary:hover{color:var(--text-primary);background:#ffffff14;border-color:#fff3}.calendar-nav-btn{width:36px!important;height:36px!important;padding:0!important;border-radius:50%!important;display:flex;align-items:center;justify-content:center;background:#ffffff0d;border:1px solid var(--border-color);color:var(--text-secondary);cursor:pointer;transition:all .2s ease;margin-top:0!important}.calendar-nav-btn:hover{background:#ffffff1a;color:var(--text-primary);transform:scale(1.05);border-color:var(--accent-color)}.calendar-nav-btn svg{width:20px;height:20px}#loading-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#0f172acc;display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:100;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}.spinner{width:40px;height:40px;border:4px solid rgba(56,189,248,.2);border-top-color:var(--accent-color);border-radius:50%;animation:spin 1s linear infinite;margin-bottom:1rem}@keyframes spin{to{transform:rotate(360deg)}}.nav-tabs{display:flex;gap:.5rem;margin-bottom:2rem;overflow-x:auto;padding-bottom:.5rem}.nav-tab{white-space:nowrap;padding:.75rem 1.25rem;border-radius:.75rem;background:#ffffff08;border:1px solid var(--border-color);color:var(--text-secondary);font-size:.95rem;font-weight:500;cursor:pointer;transition:all .3s cubic-bezier(.16,1,.3,1);display:flex;align-items:center;gap:.5rem}.nav-tab:hover{background:#ffffff14;color:var(--text-primary);transform:translateY(-1px)}.nav-tab.active{background:linear-gradient(135deg,var(--accent-color) 0%,#818cf8 100%);color:#fff;border-color:transparent;box-shadow:0 4px 12px #38bdf833}.badge{display:inline-block;background:#ef4444;color:#fff;padding:.25rem .5rem;border-radius:.375rem;font-size:.75rem;font-weight:700}.bottom-nav{display:none;position:fixed;bottom:0;left:0;right:0;background:#0f172af2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-top:1px solid var(--border-color);padding:.5rem 1rem calc(.5rem + env(safe-area-inset-bottom));justify-content:space-around;z-index:1000}.bottom-nav-item{background:none;border:none;color:var(--text-secondary);display:flex;flex-direction:column;align-items:center;gap:.25rem;padding:.5rem;cursor:pointer;font-size:.75rem}.bottom-nav-item .icon{font-size:1.5rem;margin-bottom:2px}.bottom-nav-item.active{color:var(--accent-color)}.bottom-nav-item:hover{background:none;color:var(--text-primary)}.icon-wrapper{position:relative;display:inline-block}.badge-dot{position:absolute;top:0;right:-2px;width:8px;height:8px;background:#ef4444;border-radius:50%;border:1px solid var(--bg-color)}@media(max-width:480px){body{padding:1rem 1rem calc(8rem + env(safe-area-inset-bottom));align-items:flex-start;min-height:100dvh}#desktop-nav{display:none!important}.bottom-nav{display:flex}header{margin-bottom:1.5rem;display:flex;flex-direction:column;align-items:center}.auth-logged-in{width:100%;justify-content:center;margin-bottom:1rem}.card{padding:1.5rem;margin-bottom:2rem}#step-actions{padding-bottom:2rem}#app{max-width:100%;width:100%}#step-content{padding-bottom:8rem}.sticky-actions{position:fixed!important;left:0;right:0;bottom:calc(60px + env(safe-area-inset-bottom));background:linear-gradient(to top,var(--bg-color) 80%,transparent);padding:1rem 1.5rem 1.5rem!important;z-index:100;display:flex!important;flex-direction:row-reverse;gap:.75rem}.sticky-actions button{flex:1;margin:0!important}}.review-quality{padding:1rem .5rem!important;background:#ffffff0d!important;border:2px solid var(--border-color)!important;color:var(--text-primary)!important;transition:all .2s ease;min-height:100px;display:flex;flex-direction:column;align-items:center;justify-content:center}.review-quality:hover{background:#ffffff1a!important;transform:translateY(-2px)}@keyframes flip{0%{transform:rotateY(0)}to{transform:rotateY(180deg)}}.progress-bar{width:100%;height:8px;background:#ffffff1a;border-radius:4px;overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg,var(--accent-color),var(--accent-hover));width:0%;transition:width .3s ease}.status-new{color:#60a5fa}.status-learning{color:#fbbf24}.status-mastered{color:#4ade80}.status-suspended{color:#a78bfa}.narrative-card{background:#0f172a;border:1px solid var(--border-color);border-radius:.75rem;padding:1rem;margin-bottom:1rem;transition:all .2s ease}.narrative-card:hover{background:#1e293b;border-color:var(--accent-color)}.truncate-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:200;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}.modal{background:var(--card-bg);border-radius:1rem;padding:2rem;max-width:500px;width:90%;box-shadow:0 25px 50px -12px #00000080}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1rem;margin-bottom:2rem}.stat-card{background:linear-gradient(135deg,#38bdf81a,#818cf81a);border:1px solid var(--border-color);border-radius:1rem;padding:1.5rem;text-align:center}.stat-value{font-size:2rem;font-weight:700;color:var(--accent-color);margin:.5rem 0}.stat-label{font-size:.9rem;color:var(--text-secondary)}input[type=text],input[type=file],textarea{width:100%;padding:.75rem;border:1px solid var(--border-color);border-radius:.5rem;background:#0f172a;color:var(--text-primary);font-family:Inter,sans-serif;font-size:1rem;transition:border-color .2s ease}input[type=text]:focus,input[type=file]:focus,textarea:focus{outline:none;border-color:var(--accent-color);box-shadow:0 0 0 3px #38bdf81a}input[type=range]{width:100%;cursor:pointer;accent-color:var(--accent-color)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#38bdf84d;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#38bdf880}.narrative-box{background:#0f172a;padding:1.5rem;border-radius:1rem;margin-bottom:1.5rem;font-size:1.1rem;line-height:1.8}.narrative-text-container{padding:.25rem 0}.sentence-text{cursor:pointer;padding:2px;border-radius:4px;transition:all .2s ease;display:inline;line-height:1.8}.sentence-text:hover{background:#ffffff0d;color:var(--accent-color)}.sentence-text.playing{background:#38bdf833;color:var(--accent-color);box-shadow:0 1px 0 var(--accent-color)}.key-phrases-details summary::-webkit-details-marker{display:none}.key-phrases-details[open] summary{border-bottom:1px solid rgba(255,255,255,.05);margin-bottom:.5rem;color:var(--accent-color)!important}.review-footer{position:fixed;bottom:0;left:0;right:0;background:#0f172af2;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border-top:1px solid var(--border-color);padding:.75rem 1.5rem calc(.75rem + env(safe-area-inset-bottom));z-index:1000;box-shadow:0 -10px 40px #00000080;animation:footerSlideUp .3s ease-out}@keyframes footerSlideUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}.app-footer{margin-top:2rem;padding:1.5rem 0;padding-bottom:calc(80px + env(safe-area-inset-bottom));border-top:1px solid var(--border-color);text-align:center}.auth-footer-content{display:flex;flex-direction:column;align-items:center;gap:.5rem;color:var(--text-secondary);font-size:.85rem}.footer-user-email{opacity:.7}.btn-link{background:none;border:none;color:var(--accent-color);font-size:.85rem;font-weight:500;cursor:pointer;text-decoration:underline;padding:4px 8px;width:auto}.btn-link:hover{color:var(--accent-hover);background:#ffffff0d;border-radius:4px}.auth-form-compact{display:flex;justify-content:center;padding:1rem 0}#auth-required{text-align:center;padding:3rem 1rem}#auth-required h2{margin-bottom:1rem}#auth-required p{color:var(--text-secondary);margin-bottom:2rem}.btn{padding:.75rem 1.5rem;border-radius:.75rem;font-weight:600;font-size:1rem;cursor:pointer;transition:all .2s ease;border:none}.btn-primary{background-color:var(--accent-color);color:#fff}.btn-primary:hover:not(:disabled){background-color:var(--accent-hover);transform:translateY(-1px)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-secondary{background:transparent;color:var(--text-secondary);border:1px solid var(--border-color)}.btn-secondary:hover{color:var(--text-primary);background:#ffffff0d}.btn-google{background:#fff;color:#1f1f1f;border:none;display:flex;align-items:center;justify-content:center;font-weight:500;box-shadow:0 2px 8px #00000026}.btn-google:hover{background:#f8f8f8;transform:translateY(-1px);box-shadow:0 4px 12px #0003}.auth-divider{display:flex;align-items:center;text-align:center;margin:1.5rem 0;color:var(--text-secondary);font-size:.9rem}.auth-divider:before,.auth-divider:after{content:"";flex:1;border-bottom:1px solid var(--border-color)}.auth-divider span{padding:0 .75rem}@media(max-width:480px){body{padding:1rem}h1{font-size:2rem}.card{padding:1.5rem}.nav-tabs{gap:.25rem}.nav-tab{padding:.5rem .75rem;font-size:.85rem}.stat-grid{grid-template-columns:repeat(2,1fr)}.auth-form{padding:1.5rem}.user-info{flex-direction:column;gap:.5rem}.calendar-grid{gap:.25rem;margin-bottom:1.5rem}.calendar-day{border-radius:.25rem;font-size:.9rem}.calendar-header{font-size:.85rem;padding:.25rem 0}.entry-dot{width:4px;height:4px;margin-bottom:2px}.editable-narrative{font-size:1rem;padding:.75rem}}.calendar-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:.5rem;margin-bottom:2rem}.calendar-header{text-align:center;font-weight:700;color:var(--text-secondary);padding:.5rem 0}.calendar-day{aspect-ratio:1;background:#0f172a;border-radius:.5rem;display:flex;flex-direction:column;justify-content:center;align-items:center;cursor:pointer;position:relative;transition:all .2s;border:1px solid transparent}.calendar-day:hover{background:#1e293b}.calendar-day.empty{background:transparent;cursor:default}.calendar-day.has-entry{border-color:var(--accent-color);background:#2563eb1a}.calendar-day.selected{background:var(--accent-color);color:#fff;border-color:var(--accent-color)}.entry-dot{width:6px;height:6px;background:var(--accent-color);border-radius:50%;margin-bottom:4px}.calendar-day.selected .entry-dot{background:#fff}.editable-narrative{width:100%;min-height:200px;padding:1rem;border:1px solid var(--border-color);border-radius:.75rem;background:#ffffff08;color:var(--text-primary);font-family:inherit;font-size:1.1rem;line-height:1.6;resize:vertical;transition:all .2s ease}.editable-narrative:focus{outline:none;border-color:var(--accent-color);background:#ffffff0d}