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h3{display:flex;align-items:center;gap:.5rem;color:var(--text-primary);margin-bottom:1rem;font-size:1.25rem}.insight-icon{font-size:1.5rem}.insight-item{display:flex;gap:1rem;padding:1rem;margin-bottom:1rem;border-radius:8px;background:var(--bg-primary)}.insight-item.strength{border-left:4px solid #22C55E}.insight-item.improvement{border-left:4px solid #F59E0B}.insight-marker{font-size:1.5rem;flex-shrink:0}.insight-content{flex:1}.insight-title{font-weight:700;color:var(--text-primary);margin-bottom:.25rem}.insight-description{color:var(--text-secondary);font-size:.9rem;line-height:1.5}.loading-indicator{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:4rem 2rem;text-align:center}.spinner{width:48px;height:48px;border:4px solid var(--border-light);border-top-color:var(--primary-color);border-radius:50%;animation:spin 1s linear infinite;margin-bottom:1rem}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:768px){.progress-dashboard{padding:1rem .5rem 6rem}.stats-row{grid-template-columns:1fr;gap:.75rem}.month-selector h2{font-size:1.25rem;min-width:150px}}.auth-button{padding:.5rem 1rem;border:none;border-radius:.375rem;font-size:.875rem;font-weight:600;cursor:pointer;transition:all .2s ease;display:flex;align-items:center;gap:.5rem;background:var(--primary-color);color:#fff;box-shadow:0 1px 3px #0000001a;white-space:nowrap;height:32px}.auth-button:hover{background:var(--primary-color);opacity:.9;transform:translateY(-1px);box-shadow:0 4px 8px #00000026}.auth-button:active{transform:translateY(0);box-shadow:0 2px 4px #0000001a}.sign-in-button{background:var(--primary-color);color:#fff}.user-button{background:var(--bg-primary);color:var(--text-primary);border:2px solid var(--border-color);box-shadow:0 1px 3px #00000014}.user-button:hover{background:var(--bg-secondary);border-color:var(--primary-color);box-shadow:0 2px 6px #0000001f}.user-avatar{width:1.5rem;height:1.5rem;border-radius:50%;background:var(--primary-color);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:.75rem}.user-name{max-width:150px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.dropdown-arrow{font-size:.7rem;opacity:.7}.auth-button-container{position:relative}.auth-menu{position:absolute;top:calc(100% + .5rem);right:0;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:.5rem;box-shadow:0 4px 12px #0000001a;min-width:150px;z-index:1000;overflow:hidden}.auth-menu-item{width:100%;padding:.75rem 1rem;border:none;background:transparent;color:var(--text-primary);text-align:left;cursor:pointer;transition:background .2s;font-size:.9rem}.auth-menu-item:hover{background:var(--bg-secondary)}[data-theme=dark] .auth-menu{box-shadow:0 4px 12px #0000004d}.bottom-nav{position:fixed;bottom:0;left:0;right:0;background:var(--bg-primary);border-top:1px solid var(--border-color);display:flex;justify-content:space-around;align-items:center;padding:.5rem 0;z-index:1000;box-shadow:0 -2px 10px #0000001a}.sidebar-header{display:none}.nav-items{display:flex;width:100%;justify-content:space-around}.nav-item{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.25rem;padding:.5rem 1rem;background:none;border:none;cursor:pointer;color:var(--text-secondary);transition:all .2s;min-width:60px}.nav-item:hover,.nav-item.active{color:var(--primary-color)}.nav-icon{font-size:1.5rem;line-height:1}.nav-label{font-size:.75rem;font-weight:500}@media(min-width:768px){.bottom-nav{position:fixed;inset:0 auto 0 0;width:240px;flex-direction:column;justify-content:flex-start;padding:0;border-top:none;border-right:1px solid var(--border-color);box-shadow:2px 0 10px #0000000d}.sidebar-header{display:flex;flex-direction:column;padding:1.5rem 1rem;border-bottom:1px solid var(--border-color);gap:1rem}.sidebar-title h1{font-size:1.5rem;font-weight:700;color:var(--text-primary);margin:0 0 .5rem;line-height:1.2}.sidebar-title p{font-size:.75rem;color:var(--text-secondary);margin:0;line-height:1.4}.sidebar-actions{display:flex;flex-direction:column;gap:.75rem}.language-selector{display:flex;gap:.5rem}.lang-button{flex:1;padding:.5rem;font-size:.75rem;font-weight:600;border:1.5px solid var(--border-color);border-radius:.375rem;background:var(--bg-primary);color:var(--text-primary);cursor:pointer;transition:all .2s ease;height:32px}.lang-button:hover{background:var(--bg-secondary);border-color:var(--primary-color)}.lang-button.active{background:var(--primary-color);color:#fff;border-color:var(--primary-color)}.sidebar-auth{width:100%}.sidebar-auth .auth-button{width:100%;justify-content:center}.nav-items{flex-direction:column;width:100%;padding:1rem 0;gap:.5rem}.nav-item{width:100%;padding:1rem;flex-direction:row;justify-content:flex-start;gap:.75rem;border-radius:.5rem;margin:0 .5rem}.nav-item:hover{background:var(--bg-secondary)}.nav-item.active{background:var(--primary-light);color:var(--primary-color)}.nav-icon{font-size:1.25rem}.nav-label{font-size:.875rem;font-weight:500}}.sign-in-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg-secondary);padding:2rem}.sign-in-container{background:var(--bg-primary);border-radius:24px;padding:3rem;max-width:500px;width:100%;box-shadow:var(--shadow-lg);position:relative;border:2px solid var(--border-color);transition:all .3s ease}.sign-in-header{text-align:center;margin-bottom:2.5rem}.sign-in-logo{font-size:4rem;margin-bottom:.5rem;line-height:1}.sign-in-header h1{font-size:2.5rem;color:var(--text-primary);margin-bottom:.75rem;font-weight:700;transition:color .3s ease}.sign-in-header p{color:var(--text-secondary);font-size:1.1rem;transition:color .3s ease}.sign-in-form{margin-bottom:1.5rem}.sign-in-form :global([data-clerk-element]){width:100%}.sign-in-form :global(.cl-card){background:transparent!important;box-shadow:none!important;border:none!important;padding:0!important}.sign-in-form :global(.cl-headerTitle),.sign-in-form :global(.cl-headerSubtitle){display:none!important}.sign-in-form :global(.cl-socialButtonsBlockButton),.sign-in-form :global(.cl-formButtonPrimary){background:var(--primary-color)!important;border-radius:12px!important;padding:.875rem 1.5rem!important;font-weight:600!important;font-size:1rem!important;transition:all .2s!important;border:none!important;color:#fff!important}.sign-in-form :global(.cl-socialButtonsBlockButton):hover,.sign-in-form :global(.cl-formButtonPrimary):hover{background:var(--primary-hover)!important;transform:translateY(-2px)!important;box-shadow:var(--shadow-md)!important}.sign-in-form :global(.cl-formFieldInput){background:var(--bg-input)!important;border:2px solid var(--border-color)!important;border-radius:12px!important;padding:.875rem 1rem!important;color:var(--text-primary)!important;font-size:1rem!important;transition:all .2s!important}.sign-in-form :global(.cl-formFieldInput):focus{border-color:var(--primary-color)!important;outline:none!important;box-shadow:0 0 0 3px var(--primary-light)!important}.sign-in-form :global(.cl-footerActionLink){color:var(--primary-color)!important;font-weight:600!important;transition:color .2s!important}.sign-in-form :global(.cl-footerActionLink):hover{color:var(--primary-hover)!important}[data-theme=dark] .sign-in-container{box-shadow:var(--shadow-lg);border-color:var(--border-color)}@media(max-width:768px){.sign-in-container{padding:2rem 1.5rem;border-radius:20px}.sign-in-header h1{font-size:2rem}.sign-in-logo{font-size:3rem}.mascot-card{min-width:70px;padding:.75rem}.mascot{font-size:2rem}}.sign-up-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg-secondary);padding:2rem}.sign-up-container{background:var(--bg-primary);border-radius:24px;padding:3rem;max-width:500px;width:100%;box-shadow:var(--shadow-lg);position:relative;border:2px solid var(--border-color);transition:all .3s ease}.sign-up-header{text-align:center;margin-bottom:2.5rem}.sign-up-logo{font-size:4rem;margin-bottom:.5rem;line-height:1}.sign-up-header h1{font-size:2.5rem;color:var(--text-primary);margin-bottom:.75rem;font-weight:700;transition:color .3s ease}.sign-up-header p{color:var(--text-secondary);font-size:1.1rem;transition:color .3s ease}.tutor-mascots{display:flex;justify-content:center;gap:1rem;margin-bottom:2.5rem;flex-wrap:wrap}.mascot-card{display:flex;flex-direction:column;align-items:center;gap:.5rem;padding:1rem;border-radius:16px;background:var(--bg-secondary);border:2px solid var(--border-color);transition:all .3s ease;min-width:80px}.mascot-card:hover{border-color:var(--tutor-color, var(--primary-color));transform:translateY(-4px);box-shadow:var(--shadow-md)}.mascot{font-size:2.5rem;line-height:1;animation:float 3s ease-in-out infinite}.mascot-label{font-size:.85rem;color:var(--text-secondary);font-weight:600;transition:color .3s ease}.mascot-card:nth-child(1) .mascot{animation-delay:0s}.mascot-card:nth-child(2) .mascot{animation-delay:.5s}.mascot-card:nth-child(3) .mascot{animation-delay:1s}.mascot-card:nth-child(4) .mascot{animation-delay:1.5s}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}.sign-up-form{margin-bottom:1.5rem}.sign-up-form :global([data-clerk-element]){width:100%}.sign-up-form :global(.cl-card){background:transparent!important;box-shadow:none!important;border:none!important;padding:0!important}.sign-up-form :global(.cl-headerTitle),.sign-up-form :global(.cl-headerSubtitle){display:none!important}.sign-up-form :global(.cl-socialButtonsBlockButton),.sign-up-form :global(.cl-formButtonPrimary){background:var(--primary-color)!important;border-radius:12px!important;padding:.875rem 1.5rem!important;font-weight:600!important;font-size:1rem!important;transition:all .2s!important;border:none!important;color:#fff!important}.sign-up-form :global(.cl-socialButtonsBlockButton):hover,.sign-up-form :global(.cl-formButtonPrimary):hover{background:var(--primary-hover)!important;transform:translateY(-2px)!important;box-shadow:var(--shadow-md)!important}.sign-up-form :global(.cl-formFieldInput){background:var(--bg-input)!important;border:2px solid var(--border-color)!important;border-radius:12px!important;padding:.875rem 1rem!important;color:var(--text-primary)!important;font-size:1rem!important;transition:all .2s!important}.sign-up-form :global(.cl-formFieldInput):focus{border-color:var(--primary-color)!important;outline:none!important;box-shadow:0 0 0 3px var(--primary-light)!important}.sign-up-form :global(.cl-footerActionLink){color:var(--primary-color)!important;font-weight:600!important;transition:color .2s!important}.sign-up-form :global(.cl-footerActionLink):hover{color:var(--primary-hover)!important}.continue-anonymous{width:100%;padding:.875rem 1.5rem;background:transparent;border:2px solid var(--border-color);border-radius:12px;color:var(--text-primary);font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s;margin-top:1rem}.continue-anonymous:hover{background:var(--bg-secondary);border-color:var(--primary-color);transform:translateY(-2px)}[data-theme=dark] .sign-up-container{box-shadow:var(--shadow-lg);border-color:var(--border-color)}@media(max-width:768px){.sign-up-container{padding:2rem 1.5rem;border-radius:20px}.sign-up-header h1{font-size:2rem}.sign-up-logo{font-size:3rem}.mascot-card{min-width:70px;padding:.75rem}.mascot{font-size:2rem}}.data-migration-overlay{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:10000;padding:1rem}.data-migration-modal{background:var(--bg-primary);border-radius:1rem;padding:2rem;max-width:400px;width:100%;text-align:center;box-shadow:0 8px 24px #0003}.migration-icon{font-size:3rem;margin-bottom:1rem}.data-migration-modal h2{color:var(--text-primary);margin-bottom:1rem;font-size:1.5rem}.data-migration-modal p{color:var(--text-secondary);margin-bottom:2rem;line-height:1.6}.migration-actions{display:flex;flex-direction:column;gap:.75rem}.migration-button{padding:.75rem 1.5rem;border:none;border-radius:.5rem;font-size:1rem;font-weight:500;cursor:pointer;transition:all .2s}.migration-button:disabled{opacity:.6;cursor:not-allowed}.migration-button.primary{background:var(--primary-color);color:#fff}.migration-button.primary:hover:not(:disabled){opacity:.9;transform:translateY(-1px)}.migration-button.secondary{background:transparent;color:var(--text-primary);border:1px solid var(--border-color)}.migration-button.secondary:hover:not(:disabled){background:var(--bg-secondary);border-color:var(--primary-color)}[data-theme=dark] .data-migration-modal{box-shadow:0 8px 24px #0006}.app{min-height:100vh;display:flex;flex-direction:column;background:var(--bg-secondary);transition:background .3s ease}.controls{display:flex;gap:1rem;justify-content:center;align-items:center;flex-wrap:wrap}.controls .control-select{min-width:200px}.control-select{padding:.75rem 1.5rem;font-size:1.1rem;border:2px solid var(--primary-color);border-radius:8px;background:var(--bg-primary);color:var(--text-primary);cursor:pointer;font-weight:500;min-width:150px;transition:all .3s ease}.control-select:hover{background:var(--bg-tertiary)}.control-select:focus{outline:none;border-color:var(--primary-hover);box-shadow:0 0 0 3px var(--primary-light)}.app-main{flex:1;display:flex;justify-content:center;align-items:center;padding:2rem 2rem 6rem;width:100%;max-width:1400px;margin:0 auto}@media(max-width:768px){.app-main{padding:1rem 1rem 6rem}}@media(min-width:768px){.app-main{padding-left:240px;padding:2rem}}*{margin:0;padding:0;box-sizing:border-box}:root{--bg-primary: #ffffff;--bg-secondary: #f8f9fa;--bg-tertiary: #f1f3f5;--bg-input: #ffffff;--bg-input-wrapper: #f1f3f5;--text-primary: #212529;--text-secondary: #495057;--text-tertiary: #6c757d;--border-color: #dee2e6;--border-light: #e9ecef;--user-message-bg: #e7f5ff;--user-message-text: #1971c2;--assistant-message-bg: #ffffff;--assistant-message-text: #212529;--primary-gradient: linear-gradient(135deg, #4dabf7 0%, #339af0 100%);--primary-color: #4dabf7;--primary-hover: #339af0;--primary-light: #e7f5ff;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 2px 8px rgba(0, 0, 0, .08);--shadow-lg: 0 4px 16px rgba(0, 0, 0, .1);--success-color: #51cf66;--error-color: #ff8787;--info-color: #74c0fc;--warning-color: #ffd43b}[data-theme=dark]{--bg-primary: #1c1c1e;--bg-secondary: #2c2c2e;--bg-tertiary: #3a3a3c;--bg-input: #2c2c2e;--bg-input-wrapper: #3a3a3c;--text-primary: #f2f2f7;--text-secondary: #e5e5ea;--text-tertiary: #98989d;--border-color: #38383a;--border-light: #48484a;--user-message-bg: #1e3a5f;--user-message-text: #74c0fc;--assistant-message-bg: #2c2c2e;--assistant-message-text: #f2f2f7;--primary-gradient: linear-gradient(135deg, #5c9ce6 0%, #4dabf7 100%);--primary-color: #5c9ce6;--primary-hover: #4dabf7;--primary-light: #1e3a5f;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .4);--shadow-md: 0 4px 12px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .5);--success-color: #6bcf7f;--error-color: #ff8787;--info-color: #74c0fc;--warning-color: #ffd43b}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:var(--bg-secondary);min-height:100vh;font-size:16px;line-height:1.6;color:var(--text-primary);transition:background .3s ease,color .3s ease}#root{min-height:100vh;display:flex;flex-direction:column}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}