:root{--bg-body:#16171d;--bg-card:#1a1b25;--bg-card-glass:#1a1b25cc;--bg-surface:#111218;--bg-elevated:#1e1f2e;--bg-strip:#141520;--bg-track:#252636;--bg-input:#16171e99;--bg-input-focus:#1e1f2acc;--bg-tooltip:#0e0f16f2;--bg-sticky:#16171de0;--text-primary:#f3f4f6;--text-secondary:#e5e7eb;--text-tertiary:#d1d5db;--text-body:#9ca3af;--text-muted:#6b7280;--text-subtle:#4b5563;--text-faint:#3b3c4f;--text-ghost:#2e303a;--glass-2:#ffffff05;--glass-3:#ffffff08;--glass-4:#ffffff0a;--glass-5:#ffffff0d;--glass-6:#ffffff0f;--glass-8:#ffffff14;--glass-10:#ffffff1a;--glass-divider:linear-gradient(90deg, transparent, #ffffff0f, transparent);--scrollbar-thumb:#2a2b3a;--scrollbar-hover:#3b3c52;--shadow-card:none;--shadow-lg:0 6px 20px #0000004d;--accent-pale:#e9d5ff;--accent-soft:#a78bfa;--accent-soft-rgb:167, 139, 250;--accent:#c084fc;--accent-rgb:192, 132, 252;--accent-bright:#a855f7;--accent-bright-rgb:168, 85, 247;--accent-deep:#7c3aed;--accent-deep-rgb:124, 58, 237;--accent-strong:#6d28d9;--accent-deepest:#4c1d95;--accent-bg:rgba(var(--accent-rgb), .08);--accent-border:rgba(var(--accent-rgb), .15);--sans:system-ui, "Segoe UI", Roboto, sans-serif;--heading:system-ui, "Segoe UI", Roboto, sans-serif;--mono:ui-monospace, Consolas, monospace;font:18px/145% var(--sans);letter-spacing:.18px;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;color:var(--text-body);background:var(--bg-body);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (width<=1024px){:root{font-size:16px}}[data-theme=light]{--bg-body:#f5f6fb;--bg-card:#fff;--bg-card-glass:#ffffffe0;--bg-surface:#eceef4;--bg-elevated:#e4e6ed;--bg-strip:#eceef4;--bg-track:#dfe1e9;--bg-input:#ebedf4bf;--bg-input-focus:#e4e6eee6;--bg-tooltip:#fffffff7;--bg-sticky:#f5f6fbeb;--text-primary:#1a1b2e;--text-secondary:#2d2e40;--text-tertiary:#4a4b5e;--text-body:#5c5d72;--text-muted:#71738c;--text-subtle:#8e90a6;--text-faint:#a8aaba;--text-ghost:#c5c7d2;--glass-2:#00000004;--glass-3:#00000006;--glass-4:#00000009;--glass-5:#0000000d;--glass-6:#0000000f;--glass-8:#00000012;--glass-10:#00000014;--glass-divider:linear-gradient(90deg, transparent, #0000000f, transparent);--scrollbar-thumb:#c8cad6;--scrollbar-hover:#b0b3c0;--shadow-card:0 1px 3px #0000000a, 0 1px 2px #00000005;--shadow-lg:0 8px 24px #0000000f;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}[data-theme=light] .navbar{box-shadow:0 1px 6px #0000000f}[data-theme=light] .navbar-hamburger:hover{background:rgba(var(--accent-deep-rgb), .06)}[data-theme=light] .search-input{background:var(--bg-surface);border-color:#00000014}[data-theme=light] .search-input:focus{background:var(--bg-card);border-color:var(--accent-deep);box-shadow:0 0 0 3px rgba(var(--accent-deep-rgb), .1)}[data-theme=light] .sidebar{box-shadow:2px 0 12px #0000000a}[data-theme=light] .sidebar-item:hover{background:rgba(var(--accent-deep-rgb), .05);border-color:rgba(var(--accent-deep-rgb), .08)}[data-theme=light] .sidebar-item:hover .sidebar-item-icon svg{color:var(--accent-deep)}[data-theme=light] .sidebar-item:hover .sidebar-item-label{color:var(--text-primary)}[data-theme=light] .sidebar-item.active{background:rgba(var(--accent-deep-rgb), .1);border-color:rgba(var(--accent-deep-rgb), .2);box-shadow:inset 0 0 0 1px rgba(var(--accent-deep-rgb), .06)}[data-theme=light] .sidebar-item.active .sidebar-item-label{color:var(--accent-deepest);font-weight:700}[data-theme=light] .sidebar-item.active .sidebar-item-icon svg{color:var(--accent-deep)}[data-theme=light] .sidebar-item.active:before{background:var(--accent-deep);box-shadow:0 0 6px rgba(var(--accent-deep-rgb), .4)}[data-theme=light] .sidebar-item.active:hover{background:rgba(var(--accent-deep-rgb), .13)}[data-theme=light] .profile-panel{-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);background:#fffffff2;box-shadow:0 12px 40px #0000001f,0 0 0 1px #0000000f}[data-theme=light] .pp-item:hover{background:rgba(var(--accent-deep-rgb), .06);border-color:rgba(var(--accent-deep-rgb), .08)}[data-theme=light] .pp-item:hover span{color:var(--text-primary)}[data-theme=light] .pp-item:hover svg{color:var(--accent-deep)}[data-theme=light] .back-btn{color:var(--text-body);background:#ffffffe6;border-color:#0000001a;box-shadow:0 2px 8px #0000000f}[data-theme=light] .back-btn:hover{color:var(--accent-deep);border-color:rgba(var(--accent-deep-rgb), .25);box-shadow:0 4px 14px rgba(var(--accent-deep-rgb), .1);background:#fff;transform:translateY(-2px)}[data-theme=light] .back-btn:active{box-shadow:0 4px 14px rgba(var(--accent-deep-rgb), .12);transform:translateY(0)scale(.92)}[data-theme=light] .back-btn:hover svg{transform:translate(-2px)}[data-theme=light] .exam-tab:hover{color:var(--text-primary);background:rgba(var(--accent-deep-rgb), .05)}[data-theme=light] .exam-tab.active{color:var(--accent-deepest);background:rgba(var(--accent-deep-rgb), .12);border-color:rgba(var(--accent-deep-rgb), .28);font-weight:700}[data-theme=light] .exam-tab-add{border-color:#0000001f}[data-theme=light] .exam-tab-add:hover{background:rgba(var(--accent-deep-rgb), .06);border-color:rgba(var(--accent-deep-rgb), .2)}[data-theme=light] .grind-card{background:radial-gradient(ellipse at 15% -10%, rgba(var(--accent-deep-rgb), .06) 0%, transparent 45%), radial-gradient(ellipse at 85% 110%, rgba(var(--accent-rgb), .04) 0%, transparent 45%), var(--bg-card);border-color:rgba(var(--accent-deep-rgb), .12);box-shadow:0 2px 16px #0000000a}[data-theme=light] .grind-card:hover{border-color:rgba(var(--accent-deep-rgb), .2);box-shadow:0 8px 32px #00000014, 0 0 0 1px rgba(var(--accent-deep-rgb), .06)}[data-theme=light] .grind-card:before,[data-theme=light] .grind-card:after{opacity:.15}[data-theme=light] .grind-border-glow{opacity:.12}[data-theme=light] .track-rail{background:var(--bg-track);box-shadow:inset 0 1px 2px #0000000f}[data-theme=light] .node-dot{background:var(--bg-card);border-color:#c5c7d2}[data-theme=light] .node-dot svg{color:#a8aaba}[data-theme=light] .track-node:hover .node-dot{background:rgba(var(--accent-deep-rgb), .1);border-color:var(--accent-deep);box-shadow:0 0 10px rgba(var(--accent-deep-rgb), .15)}[data-theme=light] .track-node:hover .node-dot svg{color:var(--accent-strong)}[data-theme=light] .node-stage-label{color:#a8aaba}[data-theme=light] .track-node-wrapper:hover .node-stage-label{color:var(--text-primary)}[data-theme=light] .node-tooltip{background:#fff;border-color:#0000001a;box-shadow:0 8px 28px #0000001f}[data-theme=light] .node-tooltip:after{border-top-color:#fff}[data-theme=light] .node-tooltip-icon svg{color:var(--accent-deep)}[data-theme=light] .node-tooltip-label{color:var(--text-primary)}[data-theme=light] .node-tooltip-target{color:var(--text-body)}[data-theme=light] .grind-status{border-top-color:#0000000d}[data-theme=light] .subject-card{border-color:#0000000f;box-shadow:0 1px 4px #0000000a}[data-theme=light] .subject-card:hover{border-color:rgba(var(--accent-deep-rgb), .2);box-shadow:0 10px 32px #00000014, 0 0 0 1px rgba(var(--accent-deep-rgb), .08)}[data-theme=light] .subject-card:hover .subject-name{color:var(--text-primary)}[data-theme=light] .subject-expand-btn,[data-theme=light] .subject-cta-arrow{background:var(--bg-surface);border-color:#0000000f}[data-theme=light] .subject-chip{background:var(--bg-surface);color:var(--text-body);border-color:#0000000f}[data-theme=light] .subject-card:hover .subject-chip{background:rgba(var(--accent-deep-rgb), .06);border-color:rgba(var(--accent-deep-rgb), .12);color:var(--text-tertiary)}[data-theme=light] .subject-card:hover .subject-chip svg{color:var(--accent-deep)}[data-theme=light] .subject-progress-track{background:var(--bg-track)}[data-theme=light] .subject-divider{background:var(--glass-divider)}[data-theme=light] .test-card{border-color:#0000000f;box-shadow:0 1px 4px #0000000a}[data-theme=light] .test-card:hover{border-color:rgba(var(--accent-deep-rgb), .15);box-shadow:0 6px 22px #00000012, 0 0 0 1px rgba(var(--accent-deep-rgb), .05)}[data-theme=light] .test-arrow{background:var(--bg-surface);border-color:#0000000f}[data-theme=light] .test-card:hover .test-arrow{background:rgba(var(--accent-deep-rgb), .08);border-color:rgba(var(--accent-deep-rgb), .2)}[data-theme=light] .social-btn svg{background:var(--bg-card);border-color:#00000012}[data-theme=light] .matq-footer{box-shadow:0 -4px 16px #00000008}[data-theme=light] .cs-dropdown{background:#fff;border-color:#0000001a;box-shadow:0 12px 36px #0000001f}[data-theme=light] .cs-option:hover{background:rgba(var(--accent-deep-rgb), .06);color:var(--text-primary)}[data-theme=light] .cs-option.active{color:var(--accent-deepest);background:rgba(var(--accent-deep-rgb), .1);font-weight:600}[data-theme=light] .cs-trigger{background:var(--bg-surface);border-color:#0000001a}[data-theme=light] .cs-wrap.open .cs-trigger{border-color:var(--accent-deep);background:#fff}[data-theme=light] .sp-hero-panel{background:radial-gradient(ellipse at 30% 0%, rgba(var(--accent-deep-rgb), .05) 0%, transparent 60%), var(--bg-card);border-color:#0000000f}[data-theme=light] .sp-continue-card{background:var(--bg-card);border-color:rgba(var(--accent-deep-rgb), .12);box-shadow:0 2px 12px #0000000a}[data-theme=light] .sp-continue-card:hover{border-color:rgba(var(--accent-deep-rgb), .22);box-shadow:0 6px 24px #00000012}[data-theme=light] .sp-continue-bar{background:var(--bg-track)}[data-theme=light] .sp-bookmarks-bar{background:var(--bg-sticky);border-bottom-color:#0000000d}[data-theme=light] .sp-bookmark-pill{background:var(--bg-surface);color:var(--text-body);border-color:#00000012}[data-theme=light] .sp-bookmark-pill:hover{background:rgba(var(--accent-deep-rgb), .07);border-color:rgba(var(--accent-deep-rgb), .2);color:var(--accent-deepest);box-shadow:0 2px 8px rgba(var(--accent-deep-rgb), .08)}[data-theme=light] .sp-filter-chip{background:var(--bg-surface);color:var(--text-body);border-color:#00000012}[data-theme=light] .sp-filter-chip:hover{background:rgba(var(--accent-deep-rgb), .07);border-color:rgba(var(--accent-deep-rgb), .18);color:var(--accent-deepest)}[data-theme=light] .sp-chapter-card{border-color:#0000000f;box-shadow:0 1px 3px #00000008}[data-theme=light] .sp-chapter-card:hover{border-color:rgba(var(--accent-deep-rgb), .18);background:#fff;transform:translateY(-2px)scale(1.005);box-shadow:0 6px 22px #00000012}[data-theme=light] .sp-chapter-card:hover .sp-ch-name{color:var(--text-primary)}[data-theme=light] .sp-chapter-card:hover .sp-ch-year{color:var(--text-body)}[data-theme=light] .sp-chapter-card:hover .sp-ch-year strong{color:var(--accent-deep)}[data-theme=light] .sp-chapter-card:hover .sp-ch-progress{color:var(--text-body)}[data-theme=light] .sp-chapter-card:hover .sp-ch-progress strong{color:var(--accent-deep)}[data-theme=light] .sp-chapter-card:hover .sp-ch-arrow{color:var(--accent-deep);background:rgba(var(--accent-deep-rgb), .08)}[data-theme=light] .sp-ch-icon{background:rgba(var(--accent-deep-rgb), .06);border-color:rgba(var(--accent-deep-rgb), .1);color:var(--text-subtle)}[data-theme=light] .sp-chapter-card:hover .sp-ch-icon{color:var(--accent-deep);background:rgba(var(--accent-deep-rgb), .12);border-color:rgba(var(--accent-deep-rgb), .25);box-shadow:0 0 8px rgba(var(--accent-deep-rgb), .1)}[data-theme=light] .sp-filter-sep{background:var(--bg-track)}[data-theme=light] .sp-category-title{color:var(--text-body)}[data-theme=light] .mt-hero-inner{background:radial-gradient(ellipse at 30% 0%, rgba(var(--accent-deep-rgb), .05) 0%, transparent 50%), var(--bg-card)}[data-theme=light] .mt-year-bar{background:var(--bg-sticky);border-bottom-color:#0000000f}[data-theme=light] .mt-year-tab:hover{background:rgba(var(--accent-deep-rgb), .05);color:var(--text-primary)}[data-theme=light] .mt-year-tab.active{color:var(--accent-deepest);background:rgba(var(--accent-deep-rgb), .12);border-color:rgba(var(--accent-deep-rgb), .28);font-weight:700}[data-theme=light] .mt-test-card{border-color:#0000000f;box-shadow:0 1px 3px #00000008}[data-theme=light] .mt-test-card:hover{border-color:rgba(var(--accent-deep-rgb), .15);background:#fff;transform:translateY(-1px);box-shadow:0 6px 22px #00000012}[data-theme=light] .mt-test-card:hover .mt-test-title{color:var(--text-primary)}[data-theme=light] .mt-test-card:hover .mt-test-stat{color:var(--text-body)}[data-theme=light] .mt-session-header{border-bottom-color:#0000000d}[data-theme=light] .syl-hero-inner{background:radial-gradient(ellipse at 30% 0%, rgba(var(--accent-deep-rgb), .05) 0%, transparent 50%), var(--bg-card)}[data-theme=light] .syl-card{border-color:#0000000f;box-shadow:0 1px 4px #0000000a}[data-theme=light] .syl-card:hover{box-shadow:0 10px 32px #00000014}[data-theme=light] .sd-root-card{background:linear-gradient(135deg, color-mix(in srgb, var(--subject-color) 6%, transparent), transparent), var(--bg-card);box-shadow:0 4px 20px #0000000f}[data-theme=light] .sd-unit-card{box-shadow:0 1px 4px #0000000a}[data-theme=light] .sd-topic{border-color:#0000000d}[data-theme=light] .sd-topic:hover{background:rgba(var(--accent-deep-rgb), .03)}[data-theme=light] .sd-tooltip{color:var(--text-primary);background:#fff;border-color:#0000001a;box-shadow:0 8px 28px #0000001f}[data-theme=light] .pf-header{background:var(--bg-card);border-bottom-color:#0000000d}[data-theme=light] .pf-progress-card{border-color:#0000000f;box-shadow:0 1px 3px #00000008}[data-theme=light] .pf-progress-card:hover{border-color:#0000001a;box-shadow:0 4px 14px #0000000d}[data-theme=light] .pf-prog-bar{background:var(--bg-track)}[data-theme=light] .pf-journey-btn{border-color:#00000012}[data-theme=light] .pf-journey-btn:hover{background:rgba(var(--accent-deep-rgb), .05);border-color:rgba(var(--accent-deep-rgb), .15);color:var(--accent-deep)}[data-theme=light] .pf-meta-dot{background:var(--bg-track)}[data-theme=light] .ep-header-inner{background:radial-gradient(ellipse at 30% 0%, rgba(var(--accent-deep-rgb), .04) 0%, transparent 50%), var(--bg-card)}[data-theme=light] .ep-input{background:var(--bg-surface);border-color:#0000001a}[data-theme=light] .ep-input:focus{border-color:var(--accent-deep);background:#fff}[data-theme=light] .ep-input::placeholder{color:#a8aaba}[data-theme=light] .ep-password-btn{background:var(--bg-surface);border-color:#00000012}[data-theme=light] .ep-password-btn:hover{border-color:rgba(var(--accent-deep-rgb), .2);background:rgba(var(--accent-deep-rgb), .04)}[data-theme=light] .ep-avatar-edit{border-color:rgba(var(--accent-deep-rgb), .3);background:#fff}[data-theme=light] .bm-hero-inner{background:radial-gradient(ellipse at 30% 0%, rgba(var(--accent-deep-rgb), .05) 0%, transparent 50%), var(--bg-card)}[data-theme=light] .bm-group-chip{background:var(--bg-card);color:var(--text-body);border-color:#00000014}[data-theme=light] .bm-group-chip:hover{background:rgba(var(--accent-deep-rgb), .04);border-color:rgba(var(--accent-deep-rgb), .15);color:var(--text-primary);box-shadow:0 2px 8px #0000000a}[data-theme=light] .bm-group-chip.active{background:rgba(var(--accent-deep-rgb), .12);border-color:rgba(var(--accent-deep-rgb), .3);color:var(--accent-deepest);box-shadow:0 2px 10px rgba(var(--accent-deep-rgb), .1)}[data-theme=light] .bm-group-count{color:var(--text-body);background:#0000000d}[data-theme=light] .bm-group-chip.active .bm-group-count{background:rgba(var(--accent-deep-rgb), .18);color:var(--accent-deepest)}[data-theme=light] .bm-subject-tab{color:var(--text-body)}[data-theme=light] .bm-subject-tab:hover{color:var(--text-primary);background:#00000008}[data-theme=light] .bm-subject-tab.active{color:var(--accent-deepest);background:rgba(var(--accent-deep-rgb), .12);border-color:rgba(var(--accent-deep-rgb), .28);font-weight:700}[data-theme=light] .bm-ch-pill{background:var(--bg-card);color:var(--text-body);border-color:#00000014}[data-theme=light] .bm-ch-pill:hover{color:var(--text-primary);border-color:rgba(var(--accent-deep-rgb), .15);background:rgba(var(--accent-deep-rgb), .04)}[data-theme=light] .bm-ch-pill.active{color:var(--accent-deepest);background:rgba(var(--accent-deep-rgb), .12);border-color:rgba(var(--accent-deep-rgb), .28);box-shadow:0 1px 6px rgba(var(--accent-deep-rgb), .08);font-weight:600}[data-theme=light] .bm-add-group{color:var(--accent-deep);border-color:rgba(var(--accent-deep-rgb), .25)}[data-theme=light] .bm-add-group:hover{color:var(--accent-deepest);background:rgba(var(--accent-deep-rgb), .06);border-color:rgba(var(--accent-deep-rgb), .35)}[data-theme=light] .bm-clear-btn{color:var(--text-body);border-color:#0000001a}[data-theme=light] .bm-clear-btn:hover{color:#dc2626;background:#dc26260a;border-color:#dc262640}[data-theme=light] .bm-results-count{color:var(--text-body)}[data-theme=light] .bm-q-card{background:var(--bg-card);border-color:#0000000f;box-shadow:0 1px 3px #00000008}[data-theme=light] .bm-q-card:hover{border-color:rgba(var(--accent-deep-rgb), .18);box-shadow:0 6px 22px #00000012}[data-theme=light] .bm-q-text{color:var(--text-secondary)}[data-theme=light] .bm-q-year{color:var(--text-body)}[data-theme=light] .bm-q-remove{color:var(--text-faint)}[data-theme=light] .bm-q-remove:hover{color:#dc2626;background:#dc26260d}[data-theme=light] .bm-q-solve-btn{color:var(--accent-strong);background:rgba(var(--accent-deep-rgb), .08);border-color:rgba(var(--accent-deep-rgb), .18)}[data-theme=light] .bm-q-solve-btn:hover{background:rgba(var(--accent-deep-rgb), .14);border-color:rgba(var(--accent-deep-rgb), .3);box-shadow:0 2px 10px rgba(var(--accent-deep-rgb), .1)}[data-theme=light] .mn-hero-inner{background:radial-gradient(ellipse at 30% 0%, rgba(var(--accent-deep-rgb), .05) 0%, transparent 50%), var(--bg-card)}[data-theme=light] .mn-tab{color:var(--text-body)}[data-theme=light] .mn-tab:hover{color:var(--text-primary);background:#00000008}[data-theme=light] .mn-tab.active{color:var(--accent-deepest);background:rgba(var(--accent-deep-rgb), .12);border-color:rgba(var(--accent-deep-rgb), .28);font-weight:700}[data-theme=light] .mn-sub-chip{color:var(--text-body);border-color:#00000014}[data-theme=light] .mn-sub-chip:hover{color:var(--text-primary);border-color:#0000001f}[data-theme=light] .mn-sub-chip.active{color:var(--accent-deepest);background:rgba(var(--accent-deep-rgb), 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