.sidebar{background:var(--surface-color);border-right:1px solid var(--border-color);width:250px;min-height:100vh;padding:30px 20px}.logo{color:var(--primary-color);text-align:center;margin-bottom:50px;font-size:28px;font-weight:700}.sidebar-nav{flex-direction:column;gap:10px;display:flex}.nav-item{border-radius:var(--border-radius);color:var(--text-secondary);transition:var(--transition);align-items:center;gap:15px;padding:14px 18px;text-decoration:none;display:flex}.nav-item:hover{background:var(--surface-hover-color);color:var(--text-primary)}.nav-item.active{background:var(--primary-color);color:#fff}.sidebar-divider{border:none;border-top:1px solid #374151;margin:18px 0}.sync-button{color:#fff;cursor:pointer;background:#2563eb;border:none;border-radius:10px;justify-content:center;align-items:center;gap:10px;width:100%;padding:12px;font-size:.95rem;font-weight:600;transition:all .2s;display:flex}.sync-button:hover{background:#1d4ed8}.sync-button:disabled{opacity:.7;cursor:not-allowed}.last-sync-card{background:#1f2937;border-radius:10px;margin-top:18px;padding:12px}.last-sync-title{color:#d1d5db;align-items:center;gap:8px;font-size:14px;font-weight:600;display:flex}.last-sync-time{color:#9ca3af;margin-top:8px;font-size:13px}.logout-button{color:#fff;cursor:pointer;background:#dc2626;border:none;border-radius:10px;justify-content:center;align-items:center;gap:8px;width:100%;margin-top:18px;padding:12px;font-weight:600;transition:all .2s;display:flex}.logout-button:hover{background:#b91c1c}.navbar{background:var(--surface-color);border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;height:70px;padding:0 32px;display:flex}.user-section{color:var(--text-primary);align-items:center;gap:12px;font-weight:600;display:flex}.main-layout{background:var(--background-color);min-height:100vh;display:flex}.main-content{flex-direction:column;flex:1;display:flex}.page-content{flex:1;padding:32px;overflow-y:auto}.loader-container{justify-content:center;align-items:center;width:100%;height:300px;display:flex}.loader{border:4px solid var(--border-color);border-top:4px solid var(--primary-color);border-radius:50%;width:45px;height:45px;animation:1s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.current-focus-card{background:var(--surface-color);border-radius:var(--border-radius);box-shadow:var(--card-shadow);border:1px solid var(--border-color);padding:28px}.current-focus-title{color:var(--text-primary);margin-bottom:28px;font-size:1.6rem;font-weight:700}.current-focus-content{justify-content:space-between;align-items:center;display:flex}.focus-item{text-align:center;flex:1}.focus-icon{width:56px;height:56px;color:var(--primary-color);background:#14b8a626;border-radius:50%;justify-content:center;align-items:center;margin:0 auto 14px;font-size:22px;display:flex}.focus-icon.warning{color:var(--warning-color);background:#f59e0b26}.focus-icon.success{color:var(--success-color);background:#22c55e26}.focus-label{color:var(--text-secondary);margin-bottom:8px;font-size:.95rem}.focus-value{color:var(--text-primary);font-size:1.45rem;font-weight:700}.focus-divider{background:var(--border-color);width:1px;height:90px}@media (width<=768px){.current-focus-content{flex-direction:column;gap:24px}.focus-divider{width:100%;height:1px}}.stat-card{background:var(--surface-color);border-radius:var(--border-radius);box-shadow:var(--card-shadow);border:1px solid var(--border-color);transition:var(--transition);align-items:center;gap:18px;padding:22px;display:flex}.stat-card:hover{border-color:var(--primary-color);transform:translateY(-4px)}.stat-icon{width:58px;height:58px;color:var(--primary-color);background:#14b8a626;border-radius:50%;justify-content:center;align-items:center;font-size:24px;display:flex}.stat-title{color:var(--text-secondary);margin-bottom:6px;font-size:14px}.recommendations-card{background:var(--surface-color);border-radius:var(--border-radius);box-shadow:var(--card-shadow);border:1px solid var(--border-color);flex-direction:column;justify-content:space-between;min-height:310px;padding:24px;display:flex}.recommendations-card h3{color:var(--text-primary);margin:0 0 16px;font-size:18px}.recommendations-card h2{color:var(--text-primary);margin:0 0 14px;font-size:24px;line-height:1.3}.rating{color:var(--text-secondary);margin:0}.recommendation-actions{flex-direction:column;align-items:flex-start;gap:14px;margin-top:28px;display:flex}.solve-btn{background:var(--primary-gradient);color:#0b1120;transition:var(--transition);border-radius:8px;padding:10px 18px;font-weight:700;text-decoration:none}.solve-btn:hover{opacity:.9;transform:translateY(-2px)}.generate-btn{cursor:pointer;color:var(--primary-color);background:0 0;border:none;padding:0;font-size:15px}.generate-btn:hover{text-decoration:underline}.generate-btn:disabled{opacity:.6;cursor:not-allowed}.recommendation-footer{border-top:1px solid var(--border-color);color:var(--text-secondary);justify-content:space-between;align-items:center;padding-top:16px;font-size:14px;display:flex}.recommendation-footer strong{color:var(--text-primary);font-weight:600}.progress-card{background:var(--surface-color);border-radius:var(--border-radius);box-shadow:var(--card-shadow);border:1px solid var(--border-color);flex-direction:column;padding:22px;display:flex}.progress-card h3{margin-bottom:22px}.progress-row{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;padding:14px 0;display:flex}.progress-row:last-child{border-bottom:none}.progress-row span{color:var(--text-secondary)}.progress-row strong{color:var(--text-primary);font-size:18px}.topic-card{background:var(--surface-color);border-radius:var(--border-radius);box-shadow:var(--card-shadow);border:1px solid var(--border-color);padding:22px}.topic-card h3{margin-bottom:18px}.topic-list{flex-wrap:wrap;gap:12px;display:flex}.topic-chip{transition:var(--transition);border-radius:999px;padding:10px 18px;font-size:14px;font-weight:600}.topic-chip.strong{color:var(--success-color);background:#22c55e2e}.topic-chip.weak{color:var(--danger-color);background:#f871712e}.topic-chip:hover{transform:translateY(-2px)}.dashboard{flex-direction:column;gap:24px;display:flex}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;display:grid}.dashboard-grid{grid-template-columns:1fr 1fr;align-items:start;gap:20px;display:grid}.recommendations-card,.progress-card{min-height:260px}.topics-grid{grid-template-columns:repeat(2,1fr);gap:20px;margin-top:-6px;display:grid}.current-focus-section{margin-top:28px}@media (width<=1000px){.dashboard-grid,.topics-grid{grid-template-columns:1fr}}.recommendation-filters{background:var(--surface-color);border:1px solid var(--border-color);border-radius:var(--border-radius);width:100%;box-shadow:var(--card-shadow);flex-direction:column;gap:28px;padding:30px;display:flex}.recommendation-filters h2{color:var(--text-primary);margin:0;font-size:1.5rem}.filter-group{flex-direction:column;gap:12px;display:flex}.filter-group>label{color:var(--text-secondary);font-size:14px;font-weight:600}.filters-row{grid-template-columns:1fr 1.4fr 1.5fr;align-items:start;gap:28px;display:grid}.mode-options{flex-direction:column;gap:12px;display:flex}.mode-options label{color:var(--text-primary);cursor:pointer;align-items:center;gap:10px;display:flex}.mode-options input{accent-color:var(--primary-color)}.slider-values{color:var(--text-primary);justify-content:center;margin-top:10px;font-weight:600;display:flex}.MuiSlider-root{color:var(--primary-color)!important}.MuiSlider-thumb{background:var(--text-primary)!important;border:3px solid var(--primary-color)!important;width:18px!important;height:18px!important}.MuiSlider-track{border:none!important}.MuiSlider-rail{background:var(--surface-hover-color)!important}.select__control{min-height:46px;background:var(--background-color)!important;border:1px solid var(--border-color)!important;box-shadow:none!important;border-radius:10px!important}.select__menu{background:var(--surface-color)!important;border:1px solid var(--border-color)!important}.select__option{background:var(--surface-color)!important;color:var(--text-primary)!important}.select__option--is-focused{background:var(--surface-hover-color)!important}.select__option--is-selected{background:var(--primary-color)!important;color:#0b1120!important}.select__single-value{color:var(--text-primary)!important}.select__placeholder{color:var(--text-secondary)!important}.select__input-container{color:var(--text-primary)!important}.select__multi-value{border-radius:6px;background:var(--primary-color)!important}.select__multi-value__label{font-weight:600;color:#0b1120!important}.select__multi-value__remove{color:#0b1120!important}.select__multi-value__remove:hover{background:var(--primary-color-hover)!important;color:#0b1120!important}.recommendation-filters button[type=submit]{background:var(--primary-gradient);color:#0b1120;cursor:pointer;width:240px;height:50px;transition:var(--transition);border:none;border-radius:10px;align-self:flex-end;margin-top:10px;font-size:.95rem;font-weight:700}.recommendation-filters button[type=submit]:hover{transform:translateY(-2px);box-shadow:0 6px 18px #14b8a64d}.smart-message{background:var(--background-color);border:1px solid var(--border-color);border-radius:10px;flex-direction:column;justify-content:center;gap:14px;min-height:140px;padding:18px 20px;display:flex}.smart-message p{color:var(--text-secondary);align-items:center;gap:12px;margin:0;font-size:.95rem;display:flex}.check-icon{color:var(--primary-color);flex-shrink:0;font-size:16px}.recommendation-card{background:var(--surface-color);border:1px solid var(--border-color);border-radius:var(--border-radius);box-shadow:var(--card-shadow);flex-direction:column;width:100%;padding:50px;display:flex}.card-title{color:var(--text-secondary);margin:0;font-size:16px}.recommendation-card h1{color:var(--text-primary);margin-top:10px;margin-bottom:25px;font-size:48px;line-height:1.2}.rating-pill{width:max-content;color:var(--primary-color);background:#14b8a626;border-radius:999px;padding:10px 18px;font-size:16px;font-weight:700}.button-row{gap:18px;margin-top:35px;display:flex}.topic-button{border:1px solid var(--border-color);background:var(--surface-hover-color);color:var(--text-primary);cursor:pointer;transition:var(--transition);border-radius:10px;align-items:center;gap:10px;padding:14px 20px;font-weight:600;display:flex}.topic-button:hover{background:var(--border-color)}.solve-button{background:var(--primary-gradient);color:#0b1120;transition:var(--transition);border-radius:10px;align-items:center;gap:10px;padding:14px 24px;font-weight:700;text-decoration:none;display:flex}.solve-button:hover{transform:translateY(-2px);box-shadow:0 6px 18px #14b8a64d}.topics-container{flex-wrap:wrap;gap:12px;margin-top:35px;display:flex}.topic-chip{color:var(--primary-color);background:#14b8a626;border-radius:999px;padding:10px 18px;font-size:15px;font-weight:600}.empty{justify-content:center;align-items:center;min-height:420px}.empty h2{color:var(--text-primary)}.empty p{color:var(--text-secondary);margin-top:12px}.recommendations-page{flex-direction:column;gap:28px;width:100%;display:flex}.page-header{margin-bottom:-4px}.recommendation-result{width:100%}.summary-grid{grid-template-columns:repeat(2,1fr);gap:24px;display:grid}.summary-card{background:var(--surface-color);border:1px solid var(--border-color);border-radius:var(--border-radius);box-shadow:var(--card-shadow);padding:28px}.summary-card h2{color:var(--text-primary);margin:0 0 24px;font-size:1.4rem}.summary-item{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;padding:16px 0;display:flex}.summary-item:last-child{border-bottom:none}.summary-left{color:var(--text-primary);align-items:center;gap:12px;font-weight:500;display:flex}.summary-icon{border-radius:50%;flex-shrink:0;width:8px;min-width:8px;max-width:8px;height:8px;min-height:8px;max-height:8px;margin:0;padding:0;font-size:0;line-height:0;display:inline-block}.good-icon:before{content:"🟢";font-size:14px}.bad-icon:before{content:"🔴";font-size:14px}.good{color:var(--success-color);font-weight:700}.bad{color:var(--danger-color);font-weight:700}@media (width<=900px){.summary-grid{grid-template-columns:1fr}}.topic-card{background:var(--surface-color);border:1px solid var(--border-color);border-radius:var(--border-radius);box-shadow:var(--card-shadow);transition:var(--transition);flex-direction:column;gap:20px;padding:28px;display:flex}.topic-card:hover{border-color:var(--primary-color);transform:translateY(-3px);box-shadow:0 12px 28px #00000059}.topic-header{justify-content:space-between;align-items:center;gap:20px;display:flex}.topic-header h2{color:var(--text-primary);margin:0;font-size:1.4rem;font-weight:700}.topic-percentage{color:var(--primary-color);background:#14b8a626;border-radius:999px;padding:8px 16px;font-size:.9rem;font-weight:700}.progress-bar{background:var(--surface-hover-color);border-radius:999px;width:100%;height:12px;overflow:hidden}.progress-fill{background:var(--primary-gradient);border-radius:999px;height:100%;transition:width .5s}.topic-stats{grid-template-columns:repeat(3,1fr);gap:24px;margin-top:4px;display:grid}.stat{background:var(--background-color);border:1px solid var(--border-color);border-radius:12px;flex-direction:column;justify-content:center;align-items:center;gap:8px;padding:18px;display:flex}.stat-label{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;font-size:.85rem}.stat-value{color:var(--text-primary);font-size:1.35rem;font-weight:700}@media (width<=900px){.topic-stats{grid-template-columns:1fr}}.topic-insights-page{flex-direction:column;gap:30px;width:100%;display:flex}.topic-insights-page h1{color:#fff;margin:0;font-size:2rem;font-weight:700}.topic-list{grid-template-columns:repeat(auto-fit,minmax(420px,1fr));gap:24px;width:100%;display:grid}.topic-insights-page h1{color:#fff;margin:0;font-size:2rem}@media (width<=1200px){.topic-list{grid-template-columns:repeat(auto-fit,minmax(350px,1fr))}}@media (width<=900px){.topic-list{grid-template-columns:1fr}}.summary-cards{grid-template-columns:repeat(3,1fr);gap:24px;display:grid}.summary-card{background:#242d3b;border-radius:18px;flex-direction:column;gap:18px;padding:28px;transition:all .25s;display:flex;box-shadow:0 10px 25px #00000040}.summary-card:hover{transform:translateY(-4px)}.summary-icon{color:#3b82f6;background:#2563eb26;border-radius:12px;justify-content:center;align-items:center;width:52px;height:52px;display:flex}.summary-icon svg{font-size:28px}.summary-title{color:#9ca3af;font-size:.95rem;font-weight:500}.summary-card h2{color:#fff;margin:0;font-size:2.2rem;font-weight:700}.positive-rating{color:#22c55e!important}.negative-rating{color:#ef4444!important}@media (width<=900px){.summary-cards{grid-template-columns:1fr}}.rating-chart-card{background:#242d3b;border-radius:18px;padding:36px;box-shadow:0 10px 25px #00000040}.rating-chart-header{margin-bottom:30px}.rating-chart-scroll{padding-bottom:4px;overflow-x:auto}.rating-chart-scroll::-webkit-scrollbar{height:8px}.rating-chart-scroll::-webkit-scrollbar-thumb{background:#374151;border-radius:4px}.rating-chart-scroll::-webkit-scrollbar-track{background:0 0}.rating-chart-header h2{color:#fff;margin:0;font-size:1.5rem}.rating-chart-header p{color:#9ca3af;margin-top:8px}.rating-tooltip{background:#1b2432;border:1px solid #374151;border-radius:14px;min-width:170px;padding:14px 18px;box-shadow:0 12px 24px #00000059}.rating-tooltip h4{color:#fff;margin:0 0 12px;font-size:1rem}.tooltip-content{justify-content:space-between;gap:18px;display:flex}.tooltip-content span{color:#9ca3af}.tooltip-content strong{color:#22c55e}.recharts-tooltip-wrapper{outline:none}.progress-review-page{flex-direction:column;gap:28px;width:100%;display:flex}.progress-review-header{align-items:left;flex-direction:column;gap:10px;display:flex}.progress-review-header h1{color:#fff;margin:0;font-size:2.3rem;font-weight:700}.progress-review-header p{color:#9ca3af;margin:0;font-size:1rem}.progress-toggle-container{justify-content:center;display:flex}.progress-toggle-container .MuiToggleButtonGroup-root{background:#242d3b;border:1px solid #374151;border-radius:14px;overflow:hidden}.progress-toggle-container .MuiToggleButton-root{text-transform:none;padding:10px 24px;font-size:.95rem;transition:all .2s;color:#fff!important;background-color:#242d3b!important;border:1px solid #374151!important;font-weight:700!important}.progress-filter-section{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:24px;display:flex}.custom-days{align-items:center;gap:12px;display:flex}.custom-days .MuiTextField-root{width:140px}.custom-days .MuiOutlinedInput-root{color:#fff;background:#242d3b}.custom-days .MuiOutlinedInput-notchedOutline{border-color:#374151}.custom-days .MuiInputLabel-root{color:#9ca3af}.custom-days .MuiButton-contained{text-transform:none;height:40px;font-weight:600}.progress-toggle-container .MuiToggleButton-root:hover{background:#2f3b4f}.progress-toggle-container .MuiToggleButton-root.Mui-selected{color:#fff!important;background:#2563eb!important;font-weight:700!important}@media (width<=900px){.progress-review-page{gap:24px}.progress-review-header h1{font-size:2rem}.progress-toggle-container .MuiToggleButton-root{padding:10px 16px;font-size:.85rem}}.contest-history-table{border:1px solid #2f3b4f;margin-top:24px;overflow:hidden;box-shadow:0 10px 25px #00000040;background-color:#1b2430!important;border-radius:14px!important}.contest-history-table table{border-collapse:separate;min-width:900px}.contest-history-table th{letter-spacing:.06em;text-transform:uppercase;color:#9ca3af!important;background-color:#242d3b!important;border-bottom:1px solid #374151!important;padding:16px!important;font-size:13px!important;font-weight:700!important}.contest-history-table td{color:#d1d5db;font-variant-numeric:tabular-nums;border-bottom:1px solid #2f3b4f!important;padding:16px!important;font-size:15px!important}.contest-history-table tbody tr:nth-of-type(2n){background-color:#1f2937}.contest-history-table tbody tr{transition:background-color .15s}.contest-history-table tbody tr:hover{background-color:#2a3648!important}.contest-history-table tbody tr:last-child td{border-bottom:none!important}.contest-link{color:#60a5fa;font-weight:600;text-decoration:none}.contest-link:hover{color:#93c5fd;text-decoration:underline}.rating-positive{background:#22c55e1f;border-radius:6px;font-weight:700;display:inline-block;color:#22c55e!important;padding:4px 10px!important}.rating-negative{background:#ef44441f;border-radius:6px;font-weight:700;display:inline-block;color:#ef4444!important;padding:4px 10px!important}.contest-history-page{flex-direction:column;gap:24px;display:flex}.contest-history-header{flex-direction:column;gap:10px;display:flex}.page-subtitle{color:#cbd5e1;line-height:1.6}.login-page{background:var(--background-color);flex-direction:column;justify-content:center;align-items:center;min-height:100vh;padding:24px;display:flex}.login-form{background:var(--surface-color);border-radius:var(--border-radius);flex-direction:column;gap:22px;width:460px;padding:50px;display:flex;box-shadow:0 12px 40px #00000040}.login-form h1{text-align:center;color:#fff;letter-spacing:.5px;margin:0;font-size:44px;font-weight:700}.login-form input{color:#fff;box-sizing:border-box;background:#2b3646;border:none;border-radius:10px;width:100%;padding:16px;font-size:16px}.login-form input::placeholder{color:#9ca3af}.login-form input:focus{outline:2px solid var(--primary-color)}.login-form button{background:var(--primary-color);color:#fff;cursor:pointer;border:none;border-radius:10px;padding:16px;font-size:17px;font-weight:600;transition:all .2s}.login-form button:hover{opacity:.92}.password-field{width:100%;position:relative}.password-field input{box-sizing:border-box;width:100%;padding-right:52px}.toggle-password{box-shadow:none;cursor:pointer;border:none;outline:none;justify-content:center;align-items:center;margin:0;padding:0;display:flex;position:absolute;top:50%;right:14px;transform:translateY(-50%);color:#000!important;background:0 0!important}.toggle-password svg{font-size:22px;color:#000!important}.toggle-password:hover{background:0 0!important}.toggle-password:hover svg{color:#000!important}.auth-footer{color:#9ca3af;justify-content:center;align-items:center;gap:8px;margin-top:8px;font-size:14px;display:flex}.link-button{color:var(--primary-color);cursor:pointer;border:none;padding:0;font-size:14px;font-weight:600;background:0 0!important}.link-button:hover{text-decoration:underline}.login-header{text-align:center;margin-top:-80px;margin-bottom:50px}.login-header h1{color:#fff;letter-spacing:-1px;margin:0;font-size:72px;font-weight:800}.login-header p{color:#9ca3af;margin-top:12px;font-size:20px;font-weight:400}*{box-sizing:border-box;margin:0;padding:0}:root{--background-color:#0b1120;--surface-color:#131b2e;--surface-hover-color:#1c2942;--primary-color:#14b8a6;--primary-color-hover:#0d9488;--primary-gradient:linear-gradient(135deg, #2dd4bf 0%, #22c55e 100%);--success-color:#22c55e;--warning-color:#f59e0b;--danger-color:#f87171;--text-primary:#f8fafc;--text-secondary:#94a3b8;--border-color:#1e293b;--border-radius:14px;--card-shadow:0 4px 16px #00000059;--transition:all .25s ease;--space-xs:8px;--space-sm:16px;--space-md:24px;--space-lg:32px;--space-xl:48px}body{background:var(--background-color);color:var(--text-primary);font-family:Inter,sans-serif}a{color:inherit;text-decoration:none}button{cursor:pointer;transition:var(--transition);border:none;outline:none}input{outline:none}img{max-width:100%;display:block}.page-title{font-size:32px;font-weight:700}.card-title{font-size:18px;font-weight:600}.stat-number{font-size:32px;font-weight:700}.label{color:var(--text-secondary);font-size:14px}.body-text{font-size:16px}.page-subtitle{color:var(--text-secondary);margin-top:6px;font-size:18px}