@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap";@import"https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;500;600&display=swap";:root{--fb-color-neutral-0: #ffffff;--fb-color-neutral-50: #f8fafc;--fb-color-neutral-100: #f1f5f9;--fb-color-neutral-200: #e2e8f0;--fb-color-neutral-300: #cbd5e1;--fb-color-neutral-400: #94a3b8;--fb-color-neutral-500: #64748b;--fb-color-neutral-600: #475569;--fb-color-neutral-700: #334155;--fb-color-neutral-800: #1e293b;--fb-color-neutral-900: #0f172a;--fb-color-neutral-950: #020617;--fb-color-blue-50: #eff6ff;--fb-color-blue-100: #dbeafe;--fb-color-blue-200: #bfdbfe;--fb-color-blue-300: #93c5fd;--fb-color-blue-400: #60a5fa;--fb-color-blue-500: #3b82f6;--fb-color-blue-600: #2563eb;--fb-color-blue-700: #1d4ed8;--fb-color-blue-800: #1e40af;--fb-color-blue-900: #1e3a8a;--fb-color-green-400: #4ade80;--fb-color-green-500: #22c55e;--fb-color-green-600: #16a34a;--fb-color-amber-400: #fbbf24;--fb-color-amber-500: #f59e0b;--fb-color-amber-600: #d97706;--fb-color-red-400: #f87171;--fb-color-red-500: #ef4444;--fb-color-red-600: #dc2626;--fb-color-yellow-300: #fde047;--fb-color-yellow-400: #facc15;--fb-space-xs: .25rem;--fb-space-sm: .5rem;--fb-space-md: .75rem;--fb-space-lg: 1rem;--fb-space-xl: 1.25rem;--fb-space-2xl: 1.5rem;--fb-space-3xl: 2rem;--fb-space-4xl: 2.5rem;--fb-space-5xl: 3rem;--fb-space-6xl: 4rem;--fb-radius-xs: .125rem;--fb-radius-sm: .25rem;--fb-radius-md: .375rem;--fb-radius-lg: .5rem;--fb-radius-xl: .75rem;--fb-radius-2xl: 1rem;--fb-radius-full: 9999px;--fb-font-size-xs: .75rem;--fb-font-size-sm: .875rem;--fb-font-size-base: 1rem;--fb-font-size-lg: 1.125rem;--fb-font-size-xl: 1.25rem;--fb-font-size-2xl: 1.5rem;--fb-font-size-3xl: 1.875rem;--fb-font-size-4xl: 2.25rem;--fb-font-size-5xl: 3rem;--fb-font-size-6xl: 3.75rem;--fb-font-size-7xl: 4.5rem;--fb-font-size-8xl: 6rem;--fb-font-weight-normal: 400;--fb-font-weight-medium: 500;--fb-font-weight-semibold: 600;--fb-font-weight-bold: 700;--fb-line-height-tight: 1.25;--fb-line-height-normal: 1.5;--fb-line-height-relaxed: 1.625;--fb-duration-fast: .15s;--fb-duration-normal: .3s;--fb-duration-slow: .6s;--fb-easing-ease: cubic-bezier(.4, 0, .2, 1);--fb-easing-ease-in: cubic-bezier(.4, 0, 1, 1);--fb-easing-ease-out: cubic-bezier(0, 0, .2, 1);--fb-shadow-xs: 0 1px 2px rgba(0, 0, 0, .05);--fb-shadow-sm: 0 1px 3px rgba(0, 0, 0, .1), 0 1px 2px rgba(0, 0, 0, .06);--fb-shadow-md: 0 4px 6px rgba(0, 0, 0, .07), 0 2px 4px rgba(0, 0, 0, .06);--fb-shadow-lg: 0 10px 15px rgba(0, 0, 0, .1), 0 4px 6px rgba(0, 0, 0, .05);--fb-shadow-xl: 0 20px 25px rgba(0, 0, 0, .1), 0 10px 10px rgba(0, 0, 0, .04);--fb-shadow-2xl: 0 25px 50px rgba(0, 0, 0, .25);--fb-z-dropdown: 1000;--fb-z-sticky: 1020;--fb-z-fixed: 1030;--fb-z-modal: 1040;--fb-z-popover: 1050;--fb-z-tooltip: 1060;--fb-z-toast: 1070}:root{--fb-surface-primary: var(--fb-color-blue-500);--fb-surface-secondary: var(--fb-color-neutral-500);--fb-surface-background: var(--fb-color-neutral-0);--fb-surface-elevated: var(--fb-color-neutral-50);--fb-surface-overlay: var(--fb-color-neutral-100);--fb-text-primary: var(--fb-color-neutral-900);--fb-text-secondary: var(--fb-color-neutral-600);--fb-text-muted: var(--fb-color-neutral-500);--fb-text-inverse: var(--fb-color-neutral-0);--fb-border-primary: var(--fb-color-neutral-200);--fb-border-secondary: var(--fb-color-neutral-300);--fb-border-focus: var(--fb-color-blue-500);--fb-semantic-success: var(--fb-color-green-500);--fb-semantic-warning: var(--fb-color-amber-500);--fb-semantic-error: var(--fb-color-red-500);--fb-semantic-info: var(--fb-color-blue-500);--fb-interactive-primary: var(--fb-color-blue-500);--fb-interactive-primary-hover: var(--fb-color-blue-600);--fb-interactive-primary-active: var(--fb-color-blue-700);--fb-interactive-secondary: var(--fb-color-neutral-500);--fb-interactive-secondary-hover: var(--fb-color-neutral-600);--fb-slide-indicator-bg: var(--fb-color-yellow-400);--fb-slide-indicator-text: var(--fb-color-neutral-0);--fb-interactive-primary-light: color-mix(in srgb, var(--fb-interactive-primary) 10%, transparent);--fb-border-hover: color-mix(in srgb, var(--fb-border-primary) 70%, var(--fb-interactive-primary));--fb-interactive-primary-light: rgba(59, 130, 246, .1)}.fb-slide__theme-base,[class*=fb-slide__theme-]{--fb-interactive-primary: var(--fb-color-primary-main);--fb-interactive-secondary: var(--fb-color-secondary-main);--fb-surface-background: var(--fb-color-background);--fb-surface-elevated: var(--fb-color-surface);--fb-surface-hover: var(--fb-color-surface-variant);--fb-text-primary: var(--fb-color-text);--fb-text-secondary: var(--fb-color-secondary-main);--fb-border-primary: var(--fb-color-secondary-main);--fb-semantic-success: var(--fb-color-success);--fb-semantic-warning: var(--fb-color-warning);--fb-semantic-error: var(--fb-color-error);--fb-slide-indicator-bg: var(--fb-color-primary-main);--fb-slide-indicator-text: var(--fb-color-surface-variant);--sl-color-text: var(--fb-text-primary);--sl-color-text-accent: var(--fb-text-primary);--sl-color-white: var(--fb-text-primary);--sl-color-gray-1: var(--fb-text-primary);--sl-color-gray-2: var(--fb-text-primary);--sl-color-black: var(--fb-text-primary);--fb-text-heading-1: color-mix(in srgb, var(--fb-color-primary-main) 70%, var(--fb-text-primary));--fb-text-heading-2: color-mix(in srgb, var(--fb-color-primary-main) 80%, var(--fb-text-primary));--fb-text-heading-3: color-mix(in srgb, var(--fb-color-primary-main) 90%, var(--fb-text-primary));--fb-text-heading-4: color-mix(in srgb, var(--fb-color-primary-main) 95%, var(--fb-text-primary));--fb-text-heading-5: color-mix(in srgb, var(--fb-color-primary-main) 97%, var(--fb-text-primary));--fb-text-heading-6: var(--fb-color-primary-main);--fb-component-toc-bg: var(--fb-color-surface);--fb-component-toc-text: var(--fb-color-text);--fb-component-toc-bg: var(--fb-surface-elevated);--fb-component-toc-text: var(--fb-text-primary);--fb-component-toc-border: var(--fb-border-primary);--fb-component-toc-hover-bg: var(--fb-surface-hover);--fb-component-toc-hover-border: var(--fb-interactive-primary);--fb-component-toc-active-bg: var(--fb-slide-indicator-bg);--fb-component-toc-active-text: var(--fb-slide-indicator-text);--fb-component-progress-bg: var(--fb-border-primary);--fb-component-progress-fill: var(--fb-component-toc-active-bg);--fb-component-btn-primary-bg: var(--fb-interactive-primary);--fb-component-btn-primary-text: var(--fb-text-inverse);--fb-component-btn-primary-hover: var(--fb-interactive-primary-hover);--fb-component-btn-secondary-bg: var(--fb-surface-elevated);--fb-component-btn-secondary-text: var(--fb-text-primary);--fb-component-btn-secondary-hover: var(--fb-surface-hover);--fb-component-search-highlight-bg: var(--fb-semantic-success);--fb-component-search-highlight-text: var(--fb-text-inverse);--fb-component-bookmark-bg: var(--fb-interactive-primary-light);--fb-component-bookmark-border: var(--fb-interactive-primary);--fb-component-bookmark-text: var(--fb-interactive-primary)}.fb-slide__theme-default{--fb-color-primary-main: #3b82f6;--fb-color-secondary-main: #94a3b8;--fb-color-background: #000000;--fb-color-surface: #2a3441;--fb-color-surface-variant: #1a202c;--fb-color-text: #ffffff;--fb-color-success: #22c55e;--fb-color-warning: #f59e0b;--fb-color-error: #ef4444;--fb-slide-indicator-bg: #be8e2d;--fb-text-heading-1: #ffffff;--fb-text-heading-2: #f8fafc;--fb-text-heading-3: #e2e8f0;--fb-text-heading-4: #cbd5e1;--fb-text-heading-5: #94a3b8;--fb-text-heading-6: var(--fb-color-primary-main);--fb-color-neutral-0: var(--fb-color-background);--fb-color-neutral-50: var(--fb-color-surface-variant);--fb-color-neutral-100: var(--fb-color-surface);--fb-color-neutral-200: #334155;--fb-color-neutral-300: #475569;--fb-color-neutral-500: #64748b;--fb-color-neutral-600: var(--fb-color-secondary-main);--fb-color-neutral-900: #f8fafc;--fb-color-neutral-950: var(--fb-color-text)}.fb-slide__theme-default-light{--fb-color-primary-main: #3b82f6;--fb-color-secondary-main: #94a3b8;--fb-color-background: #ffffff;--fb-color-surface: #f8fafc;--fb-color-surface-variant: #f1f5f9;--fb-color-text: #1e293b;--fb-color-success: #22c55e;--fb-color-warning: #f59e0b;--fb-color-error: #ef4444;--fb-surface-hover: var(--fb-color-neutral-200);--fb-slide-indicator-bg: var(--fb-color-blue-500);--fb-text-heading-1: #1f2937;--fb-text-heading-2: #374151;--fb-text-heading-3: #4b5563;--fb-text-heading-4: #6b7280;--fb-text-heading-5: #9ca3af;--fb-text-heading-6: var(--fb-color-primary-main)}.fb-slide__theme-dracula{--fb-color-primary-main: #ff79c6;--fb-color-secondary-main: #6272a4;--fb-color-background: #141414;--fb-color-surface: #353545;--fb-color-surface-variant: #2a2a3a;--fb-color-text: #f8f8f2;--fb-color-success: #50fa7b;--fb-color-warning: #ffb86c;--fb-color-error: #ff5555;--fb-text-heading-1: #b33367;--fb-text-heading-2: #cc417a;--fb-text-heading-3: #e54f8d;--fb-text-heading-4: #ff5da0;--fb-text-heading-5: #ff6bb3;--fb-text-heading-6: var(--fb-color-primary-main)}.fb-slide__theme-dracula-light{--fb-color-primary-main: #bd5eff;--fb-color-secondary-main: #6272a4;--fb-color-background: #f8f8f2;--fb-color-surface: #ffffff;--fb-color-surface-variant: #e8e8e3;--fb-color-text: #282a36;--fb-color-success: #42b883;--fb-color-warning: #f76707;--fb-color-error: #dc2626;--fb-border-primary: #d0d1d6;--fb-slide-indicator-text: var(--fb-color-neutral-0);--fb-text-heading-1: #5b21b6;--fb-text-heading-2: #6d28d9;--fb-text-heading-3: #7c3aed;--fb-text-heading-4: #9333ea;--fb-text-heading-5: #a855f7;--fb-text-heading-6: var(--fb-color-primary-main)}.fb-slide__theme-github{--fb-color-primary-main: #58a6ff;--fb-color-secondary-main: #7d8590;--fb-color-background: #0d1117;--fb-color-surface: #30363d;--fb-color-surface-variant: #21262d;--fb-color-text: #f0f6fc;--fb-color-success: #3fb950;--fb-color-warning: #f0883e;--fb-color-error: #da3633;--fb-text-heading-1: #0550ae;--fb-text-heading-2: #0969da;--fb-text-heading-3: #1088ff;--fb-text-heading-4: #2892ff;--fb-text-heading-5: #409cff;--fb-text-heading-6: var(--fb-color-primary-main)}.fb-slide__theme-github-light{--fb-color-primary-main: #0969da;--fb-color-secondary-main: #656d76;--fb-color-background: #ffffff;--fb-color-surface: #f6f8fa;--fb-color-surface-variant: #d1d9e0;--fb-color-text: #1f2328;--fb-color-success: #1a7f37;--fb-color-warning: #bf8700;--fb-color-error: #d1242f;--fb-slide-indicator-text: var(--fb-color-background);--fb-text-heading-1: #043c8a;--fb-text-heading-2: #05459a;--fb-text-heading-3: #064eaa;--fb-text-heading-4: #0757ba;--fb-text-heading-5: #0860ca;--fb-text-heading-6: var(--fb-color-primary-main)}.fb-slide__theme-discord{--fb-color-primary-main: #5865f2;--fb-color-secondary-main: #72767d;--fb-color-background: #02091c;--fb-color-surface: #40444b;--fb-color-surface-variant: #36393f;--fb-color-text: #ffffff;--fb-color-success: #57f287;--fb-color-warning: #fee75c;--fb-color-error: #ed4245;--fb-text-heading-1: #0f1284;--fb-text-heading-2: #1a1e9a;--fb-text-heading-3: #252db0;--fb-text-heading-4: #3640c6;--fb-text-heading-5: #4752dc;--fb-text-heading-6: var(--fb-color-primary-main)}.fb-slide__theme-discord-light{--fb-color-primary-main: #5865f2;--fb-color-secondary-main: #5c6f7f;--fb-color-background: #ffffff;--fb-color-surface: #f2f3f5;--fb-color-surface-variant: #e3e5e8;--fb-color-text: #2e3338;--fb-color-success: #23a559;--fb-color-warning: #f0b232;--fb-color-error: #d83c3e;--fb-slide-indicator-text: var(--fb-color-background);--fb-text-heading-1: #0f1284;--fb-text-heading-2: #1a1e9a;--fb-text-heading-3: #252db0;--fb-text-heading-4: #3640c6;--fb-text-heading-5: #4752dc;--fb-text-heading-6: var(--fb-color-primary-main)}.fb-slide__theme-onedark{--fb-color-primary-main: #61afef;--fb-color-secondary-main: #636d83;--fb-color-background: #282c34;--fb-color-surface: #2c313a;--fb-color-surface-variant: #21252b;--fb-color-text: #abb2bf;--fb-color-success: #98c379;--fb-color-warning: #e5c07b;--fb-color-error: #e06c75;--fb-text-heading-1: #ffffff;--fb-text-heading-2: #abb2bf;--fb-text-heading-3: #9ca3af;--fb-text-heading-4: #6b7280;--fb-text-heading-5: #4b5563;--fb-text-heading-6: #374151}.fb-slide__theme-onedark-light{--fb-color-primary-main: #4078f2;--fb-color-secondary-main: #a0a1a7;--fb-color-background: #fafafa;--fb-color-surface: #ffffff;--fb-color-surface-variant: #e5e5e6;--fb-color-text: #383a42;--fb-color-success: #50a14f;--fb-color-warning: #c18401;--fb-color-error: #e45649;--fb-slide-indicator-text: var(--fb-color-surface);--fb-text-heading-1: #1f2328;--fb-text-heading-2: #383a42;--fb-text-heading-3: #4b5563;--fb-text-heading-4: #6b7280;--fb-text-heading-5: #9ca3af;--fb-text-heading-6: var(--fb-color-secondary-main)}.fb-slide__theme-ocean{--fb-color-primary-main: #00d4ff;--fb-color-secondary-main: #64b5f6;--fb-color-background: #0a1929;--fb-color-surface: #1a2332;--fb-color-surface-variant: #0f1a26;--fb-color-text: #ffffff;--fb-color-success: #4cceac;--fb-color-warning: #ffa726;--fb-color-error: #f44336;--fb-text-heading-1: #0084af;--fb-text-heading-2: #0094bf;--fb-text-heading-3: #00a4cf;--fb-text-heading-4: #00b4df;--fb-text-heading-5: #00c4ef;--fb-text-heading-6: var(--fb-color-primary-main)}.fb-slide__theme-ocean-light{--fb-color-primary-main: #0288d1;--fb-color-secondary-main: #546e7a;--fb-color-background: #ffffff;--fb-color-surface: #f8fcff;--fb-color-surface-variant: #bbdefb;--fb-color-text: #0d47a1;--fb-color-success: #00695c;--fb-color-warning: #ef6c00;--fb-color-error: #c62828;--fb-slide-indicator-text: var(--fb-color-background);--fb-text-heading-1: #01336d;--fb-text-heading-2: #014481;--fb-text-heading-3: #025595;--fb-text-heading-4: #0266a9;--fb-text-heading-5: #0277bd;--fb-text-heading-6: var(--fb-color-primary-main)}.fb-slide__theme-dracula{--fb-toc-active-text: #282a36}.fb-slide__theme-github{--fb-btn-primary-text: #0d1117}[class*=fb-slide__theme-] .fb-slide__reading-mode-content .expressive-code{background-color:var(--fb-surface-elevated)!important;border:1px solid var(--fb-border-primary)!important;border-radius:.5rem!important;margin:1.5rem 0!important;box-shadow:0 2px 8px #0000001a!important;overflow:hidden!important}[class*=fb-slide__theme-] .fb-slide__reading-mode-content .expressive-code .frame{background-color:var(--fb-surface-elevated)!important;border:none!important}[class*=fb-slide__theme-] .fb-slide__reading-mode-content .expressive-code pre{background-color:var(--fb-surface-elevated)!important;color:var(--fb-text-primary)!important;margin:0!important;padding:1rem!important;font-family:Consolas,Monaco,Courier New,monospace!important;font-size:.875rem!important;line-height:1.5!important;overflow-x:auto!important}[class*=fb-slide__theme-] .fb-slide__reading-mode-content .expressive-code code{background-color:transparent!important;color:inherit!important;border:none!important;padding:0!important;font-size:inherit!important;line-height:inherit!important}[class*=fb-slide__theme-] .fb-slide__reading-mode-content pre:not(.expressive-code pre){background-color:var(--fb-surface-elevated)!important;color:var(--fb-text-primary)!important;border:1px solid var(--fb-border-primary)!important;padding:1rem!important;border-radius:.375rem!important;font-family:Consolas,Monaco,Courier New,monospace!important;font-size:.875rem!important;line-height:1.5!important;overflow-x:auto!important;margin:1rem 0!important;box-shadow:0 1px 3px #0000001a!important}[class*=fb-slide__theme-] .fb-slide__reading-mode-content code:not(pre code):not(.expressive-code code){background-color:var(--fb-surface-elevated)!important;color:var(--fb-text-primary)!important;border:1px solid var(--fb-border-primary)!important;padding:.2rem .4rem!important;border-radius:.25rem!important;font-weight:500!important;font-family:Consolas,Monaco,Courier New,monospace!important}[class*=fb-slide__theme-] .fb-slide__reading-mode-content ol,[class*=fb-slide__theme-] .fb-slide__reading-mode-content ol li,[class*=fb-slide__theme-] .fb-slide__reading-mode-content ul,[class*=fb-slide__theme-] .fb-slide__reading-mode-content ul li,[class*=fb-slide__theme-] .fb-slide__reading-mode-content p,[class*=fb-slide__theme-] .fb-slide__reading-mode-content span,[class*=fb-slide__theme-] .fb-slide__reading-mode-content div,[class*=fb-slide__theme-] .fb-slide__reading-mode-content td,[class*=fb-slide__theme-] .fb-slide__reading-mode-content th{color:var(--fb-text-primary)!important}[class*=fb-slide__theme-] .fb-slide__reading-mode-content h1{color:var(--fb-text-heading-1)!important}[class*=fb-slide__theme-] .fb-slide__reading-mode-content h2{color:var(--fb-text-heading-2)!important}[class*=fb-slide__theme-] .fb-slide__reading-mode-content h3{color:var(--fb-text-heading-3)!important}[class*=fb-slide__theme-] .fb-slide__reading-mode-content h4{color:var(--fb-text-heading-4)!important}[class*=fb-slide__theme-] .fb-slide__reading-mode-content h5{color:var(--fb-text-heading-5)!important}[class*=fb-slide__theme-] .fb-slide__reading-mode-content h6{color:var(--fb-text-heading-6)!important}.fb-theme-surface{background:linear-gradient(135deg,var(--fb-surface-elevated) 0%,color-mix(in srgb,var(--fb-surface-elevated) 95%,white) 100%);border:1px solid color-mix(in srgb,var(--fb-border-primary) 70%,white);box-shadow:0 2px 8px #0000001f}.fb-theme-button-primary{background:linear-gradient(135deg,var(--fb-component-btn-primary-bg) 0%,color-mix(in srgb,var(--fb-component-btn-primary-bg) 85%,white) 100%);color:var(--fb-component-btn-primary-text);border:none;box-shadow:0 2px 6px #00000026;transition:all .2s ease}.fb-theme-button-primary:hover{background:linear-gradient(135deg,var(--fb-component-btn-primary-hover) 0%,color-mix(in srgb,var(--fb-component-btn-primary-hover) 80%,white) 100%);transform:translateY(-1px);box-shadow:0 4px 12px #0003}.fb-theme-button-secondary{background:linear-gradient(135deg,var(--fb-component-btn-secondary-bg) 0%,color-mix(in srgb,var(--fb-component-btn-secondary-bg) 95%,white) 100%);color:var(--fb-component-btn-secondary-text);border:1px solid color-mix(in srgb,var(--fb-border-primary) 70%,white);box-shadow:0 1px 4px #0000001a;transition:all .2s ease}.fb-theme-button-secondary:hover{background:linear-gradient(135deg,var(--fb-component-btn-secondary-hover) 0%,color-mix(in srgb,var(--fb-component-btn-secondary-hover) 90%,white) 100%);border-color:var(--fb-border-hover);transform:translateY(-1px);box-shadow:0 3px 8px #00000026}.fb-slide__container,.fb-slide__modal{background-color:var(--fb-surface-background);color:var(--fb-text-primary);border:1px solid color-mix(in srgb,var(--fb-border-primary) 30%,transparent)}.fb-slide__toc{background:linear-gradient(135deg,var(--fb-component-toc-bg) 0%,color-mix(in srgb,var(--fb-component-toc-bg) 95%,white) 100%);border-color:var(--fb-component-toc-border);color:var(--fb-component-toc-text);box-shadow:0 2px 8px #00000026}.fb-slide__toc-item{transition:all .2s ease}.fb-slide__toc-item:hover{background:linear-gradient(135deg,var(--fb-component-toc-hover-bg) 0%,color-mix(in srgb,var(--fb-component-toc-hover-bg) 92%,white) 100%);border-color:var(--fb-component-toc-hover-border);transform:translateY(-1px);box-shadow:0 4px 12px #0003}.fb-slide__toc-item.active{background:linear-gradient(135deg,var(--fb-component-toc-active-bg) 0%,color-mix(in srgb,var(--fb-component-toc-active-bg) 85%,white) 100%);color:var(--fb-component-toc-active-text);border:2px solid color-mix(in srgb,var(--fb-component-toc-active-bg) 70%,white);box-shadow:0 3px 10px #00000040}.fb-slide__progress-bar{background-color:var(--fb-component-progress-bg);border-radius:4px;box-shadow:inset 0 1px 3px #0003}.fb-slide__progress-fill{background:linear-gradient(90deg,var(--fb-component-progress-fill) 0%,color-mix(in srgb,var(--fb-component-progress-fill) 85%,white) 100%);border-radius:4px;box-shadow:0 1px 3px #0000004d}@supports (color: color-mix(in srgb,red,blue)){:root{--fb-interactive-primary-hover: color-mix(in srgb, var(--fb-interactive-primary) 85%, black);--fb-surface-hover: color-mix(in srgb, var(--fb-surface-elevated) 95%, var(--fb-interactive-primary));--fb-border-hover: color-mix(in srgb, var(--fb-border-primary) 70%, var(--fb-interactive-primary));--fb-interactive-primary-light: color-mix(in srgb, var(--fb-interactive-primary) 10%, transparent)}}@media (max-width: 768px){:root{--fb-surface-elevated: color-mix(in srgb, var(--fb-surface-elevated) 98%, var(--fb-surface-background));--fb-space-lg: var(--fb-space-md);--fb-space-xl: var(--fb-space-lg);--fb-font-size-4xl: var(--fb-font-size-3xl);--fb-font-size-5xl: var(--fb-font-size-4xl)}}@media (prefers-contrast: high){:root{--fb-border-primary: color-mix(in srgb, var(--fb-text-primary) 30%, transparent);--fb-component-toc-hover-border: var(--fb-text-primary);--fb-interactive-primary: var(--fb-color-blue-700)}}@media (prefers-reduced-motion: reduce){:root{--fb-duration-fast: 0ms;--fb-duration-normal: 0ms;--fb-duration-slow: 0ms}}.fb-slide__modal{position:fixed;top:0;left:0;width:100vw;height:100vh;background:linear-gradient(135deg,var(--fb-surface-background),var(--fb-surface-elevated));z-index:2147483647!important;display:flex;align-items:center;justify-content:center}.fb-slide__modal.hidden{display:none}.fb-slide__search-container{padding:.75rem 1rem;border-bottom:1px solid var(--fb-border-primary);background:var(--fb-surface-background);display:flex;align-items:center;gap:.5rem;transition:opacity .3s ease,visibility .3s ease}.fb-slide__toc-sidebar.collapsed .fb-slide__search-container{opacity:0;visibility:hidden;pointer-events:none;overflow:hidden}.fb-slide__search-input{flex:1;padding:.5rem .75rem;border:1px solid var(--fb-border-primary);border-radius:var(--fb-radius-md);background:var(--fb-surface-background);color:var(--fb-text-primary);font-size:.875rem;transition:border-color .2s ease,box-shadow .2s ease}.fb-slide__search-input:focus{outline:none;border-color:var(--fb-interactive-primary);box-shadow:0 0 0 2px var(--fb-interactive-primary-light)}.fb-slide__search-input::placeholder{color:var(--fb-text-secondary)}.fb-slide__clear-search-btn{background:none;border:none;color:var(--fb-text-secondary);cursor:pointer;padding:.25rem;border-radius:.25rem;transition:all .2s ease;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden}.fb-slide__clear-search-btn.visible{opacity:1;visibility:visible}.fb-slide__clear-search-btn:hover{background:var(--fb-surface-hover);color:var(--fb-text-primary)}.fb-slide__modal .fb-slide__toc-sidebar .fb-slide__toc-content .fb-slide__toc-item-container.fb-slide__search-hidden{display:none!important;visibility:hidden!important;opacity:0!important;height:0!important;overflow:hidden!important;margin:0!important;padding:0!important}.fb-slide__modal .fb-slide__toc-sidebar .fb-slide__toc-content .fb-slide__toc-item-container.fb-slide__search-match{background:var(--fb-component-search-highlight-bg)!important;border:2px solid var(--fb-semantic-success)!important;box-shadow:0 4px 12px var(--fb-interactive-primary-light)!important;transform:translateY(-2px)!important}.fb-slide__modal .fb-slide__toc-sidebar .fb-slide__toc-content .fb-slide__toc-item-container.fb-slide__search-match .fb-slide__toc-item-number{background:linear-gradient(135deg,var(--fb-semantic-success),var(--fb-interactive-primary))!important;color:var(--fb-component-btn-primary-text)!important;animation:searchMatchPulse 1s ease-in-out!important}@keyframes searchMatchPulse{0%,to{transform:scale(1)}50%{transform:scale(1.1)}}.fb-slide__toc-item-title .fb-slide__search-highlight{background:var(--fb-component-search-highlight-bg);color:var(--fb-component-search-highlight-text);padding:.1rem .2rem;border-radius:.2rem;font-weight:600}.fb-slide__content .fb-slide__search-highlight{background:var(--fb-component-search-highlight-bg);color:var(--fb-component-search-highlight-text);padding:.1rem .3rem;border-radius:.3rem;font-weight:600;box-shadow:0 2px 4px var(--fb-interactive-primary-light);animation:slideSearchPulse .5s ease-in-out}@keyframes slideSearchPulse{0%{background:var(--fb-component-search-highlight-bg);transform:scale(1)}50%{background:var(--fb-semantic-success);transform:scale(1.05)}to{background:var(--fb-component-search-highlight-bg);transform:scale(1)}}.fb-slide__goto-modal{position:fixed!important;top:0!important;left:0!important;width:100vw!important;height:100vh!important;background:#000c!important;display:flex!important;align-items:center!important;justify-content:center!important;z-index:2147483649!important;overflow:visible!important}.fb-slide__goto-modal.hidden{display:none!important}.fb-slide__goto-modal-content{background:var(--fb-surface-background);border-radius:var(--fb-radius-lg);padding:var(--fb-space-3xl);box-shadow:var(--fb-shadow-2xl);border:1px solid var(--fb-border-primary);min-width:300px;text-align:center;pointer-events:auto!important;z-index:2147483650!important;position:relative!important}.fb-slide__goto-modal-content h3{margin:0 0 1rem;color:var(--fb-text-primary);font-size:1.5rem}.fb-slide__goto-input{width:100%;padding:.75rem;font-size:1.2rem;text-align:center;border:2px solid var(--fb-border-primary);border-radius:var(--fb-radius-lg);background:var(--fb-surface-background);color:var(--fb-text-primary);margin-bottom:1rem}.fb-slide__goto-input:focus{outline:none;border-color:var(--fb-interactive-primary);box-shadow:0 0 0 3px var(--fb-interactive-primary-light)}.fb-slide__goto-buttons{display:flex;gap:1rem;justify-content:center}.fb-slide__goto-btn{padding:.75rem 1.5rem;border:none;border-radius:var(--fb-radius-lg);font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s ease;pointer-events:auto!important;z-index:2147483650!important;position:relative!important}.fb-slide__goto-confirm{background:var(--fb-interactive-primary);color:var(--fb-btn-primary-text)}.fb-slide__goto-confirm:hover{background:var(--fb-interactive-primary-hover)}.fb-slide__goto-cancel{background:var(--fb-surface-elevated);color:var(--fb-text-primary)}.fb-slide__goto-cancel:hover{background:var(--fb-surface-hover)}.fb-slide__search-modal{position:fixed;top:0;left:0;width:100%;height:100%;background:color-mix(in srgb,var(--fb-surface-background) 20%,transparent);display:flex;align-items:center;justify-content:center;z-index:2147483648}.fb-slide__search-modal.hidden{display:none}.fb-slide__search-modal-content{background:var(--fb-surface-background);border-radius:.75rem;padding:0;box-shadow:0 20px 40px #0000004d;border:1px solid var(--fb-border-primary);width:90%;max-width:600px;max-height:80vh;display:flex;flex-direction:column}.fb-slide__search-modal-header{display:flex;align-items:flex-start;justify-content:space-between;padding:1.5rem 1.5rem 0;border-bottom:1px solid var(--fb-border-primary);margin-bottom:1rem}.fb-slide__search-modal-title-section{display:flex;flex-direction:column;gap:.75rem}.fb-slide__search-modal-header h3{margin:0;color:var(--fb-text-primary);font-size:1.25rem;font-weight:600}.fb-slide__search-keyboard-hints{display:flex;gap:1rem;flex-wrap:wrap}.fb-slide__keyboard-hint{display:flex;align-items:center;gap:.25rem;font-size:.75rem;color:var(--fb-text-secondary);font-weight:500}.fb-slide__keyboard-hint kbd{background:var(--fb-surface-elevated);color:var(--fb-text-primary);border:1px solid var(--fb-border-primary);border-radius:.25rem;padding:.125rem .375rem;font-size:.65rem;font-weight:600;font-family:ui-monospace,SFMono-Regular,SF Mono,Monaco,Consolas,Liberation Mono,Courier New,monospace;box-shadow:0 1px 2px #0000001a;min-width:1.25rem;text-align:center;line-height:1}.fb-slide__search-modal-close{background:none;border:none;cursor:pointer;padding:.5rem;border-radius:.375rem;color:var(--fb-text-primary);opacity:.7;transition:all .2s ease}.fb-slide__search-modal-close:hover{opacity:1;background:var(--fb-surface-hover)}.fb-slide__search-modal-input-container{position:relative;padding:0 1.5rem;margin-bottom:1rem}.fb-slide__search-modal-input{width:100%;padding:.75rem 2.5rem .75rem 1rem;font-size:1rem;border:2px solid var(--fb-border-primary);border-radius:var(--fb-radius-lg);background:var(--fb-surface-background);color:var(--fb-text-primary);box-sizing:border-box}.fb-slide__search-modal-input:focus{outline:none;border-color:var(--fb-interactive-primary);box-shadow:0 0 0 3px var(--fb-interactive-primary-light)}.fb-slide__search-modal-clear{position:absolute;right:2rem;top:50%;transform:translateY(-50%);background:none;border:none;cursor:pointer;padding:.375rem;border-radius:.25rem;color:var(--fb-text-primary);opacity:.6;transition:all .2s ease}.fb-slide__search-modal-clear:hover{opacity:1;background:var(--fb-surface-hover)}.fb-slide__search-results{flex:1;overflow-y:auto;padding:0 1.5rem 1.5rem}.fb-slide__search-results::-webkit-scrollbar{width:8px}.fb-slide__search-results::-webkit-scrollbar-track{background:var(--fb-surface-background);border-radius:4px}.fb-slide__search-results::-webkit-scrollbar-thumb{background:#6b7280;border-radius:4px;border:1px solid var(--fb-surface-background)}.fb-slide__search-results::-webkit-scrollbar-thumb:hover{background:#4b5563}[data-theme=dark] .fb-slide__search-results::-webkit-scrollbar-thumb{background:#4b5563}[data-theme=dark] .fb-slide__search-results::-webkit-scrollbar-thumb:hover{background:#6b7280}.fb-slide__search-results-info{padding:.75rem 0;color:var(--fb-text-primary);font-size:.875rem;font-weight:500;border-bottom:1px solid var(--fb-border-primary);margin-bottom:1rem}.fb-slide__search-results-list{display:flex;flex-direction:column;gap:.75rem}.fb-slide__search-result-item{padding:1rem;border:1px solid var(--fb-border-primary);border-radius:var(--fb-radius-lg);cursor:pointer;transition:all .2s ease;background:var(--fb-surface-background)}.fb-slide__search-result-item:hover{border-color:var(--fb-interactive-primary);box-shadow:0 2px 8px #0000001a;transform:translateY(-1px)}.fb-slide__search-result-item.fb-slide__search-result-selected{border-color:var(--fb-interactive-primary);background:var(--fb-interactive-primary-light);box-shadow:0 0 0 2px var(--fb-interactive-primary),0 4px 12px #00000026;transform:translateY(-2px)}.fb-slide__search-result-number{font-size:.75rem;color:var(--fb-interactive-primary);font-weight:600;margin-bottom:.25rem}.fb-slide__search-result-title{font-size:1rem;font-weight:600;color:var(--fb-text-primary);margin-bottom:.5rem;line-height:1.4}.fb-slide__search-result-snippet{font-size:.875rem;color:var(--fb-text-secondary);line-height:1.5}.fb-slide__search-no-results{text-align:center;padding:2rem;color:var(--fb-text-secondary);font-size:.875rem}.fb-slide__search-highlight{background:var(--fb-component-search-highlight-bg);color:var(--fb-component-search-highlight-text);border:1px solid var(--fb-semantic-success);border-radius:.25rem;padding:.125rem .25rem;font-weight:600;box-shadow:0 1px 3px var(--fb-interactive-primary-light)}.fb-slide__reading-mode-highlight{background:var(--fb-component-search-highlight-bg);color:var(--fb-component-search-highlight-text);border:1px solid var(--fb-semantic-success);border-radius:.25rem;padding:.125rem .25rem;font-weight:600;box-shadow:0 1px 3px var(--fb-interactive-primary-light);transition:all .3s ease}.fb-slide__reading-mode-highlight.fb-slide__highlight-focused{background:var(--fb-warning);color:var(--fb-text-primary);border-color:var(--fb-warning);box-shadow:0 0 0 3px var(--fb-interactive-primary-light);transform:scale(1.05)}.fb-slide__reading-mode-result{border-left:4px solid var(--fb-interactive-primary)}.laser-pointer-settings-modal{position:fixed!important;top:0!important;left:0!important;width:100%!important;height:100%!important;background:#000c!important;align-items:center!important;justify-content:center!important;z-index:2147483650!important;display:none!important}.laser-pointer-settings-modal.visible{display:flex!important}.laser-pointer-settings-content{background:var(--fb-surface-background);border-radius:.75rem;padding:2rem;box-shadow:0 20px 40px #0000004d;border:1px solid var(--fb-border-primary);width:90%;max-width:500px;max-height:80vh;overflow-y:auto}.laser-pointer-settings-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem;border-bottom:1px solid var(--fb-border);padding-bottom:1rem}.laser-pointer-settings-title{margin:0;color:var(--fb-text-primary);font-size:1.25rem;font-weight:600}.laser-pointer-settings-close{background:none;border:none;cursor:pointer;padding:.5rem;border-radius:.375rem;color:var(--fb-text-primary);opacity:.7;transition:all .2s ease;font-size:1.2rem}.laser-pointer-settings-close:hover{opacity:1;background:var(--fb-surface-hover)}.laser-pointer-setting-group{margin-bottom:1.5rem}.laser-pointer-setting-label{display:block;color:var(--fb-text-primary);font-weight:500;margin-bottom:.5rem;font-size:.9rem}.laser-pointer-color-picker{width:100%;height:40px;border:2px solid var(--fb-border-primary);border-radius:var(--fb-radius-lg);cursor:pointer;background:none;transition:border-color .2s ease}.laser-pointer-color-picker:hover{border-color:var(--fb-interactive-primary)}.laser-pointer-slider{width:100%;height:6px;border-radius:3px;background:var(--fb-border-primary);outline:none;-webkit-appearance:none;appearance:none}.laser-pointer-slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:20px;height:20px;border-radius:50%;background:var(--fb-interactive-primary);cursor:pointer;border:2px solid var(--fb-surface-background);box-shadow:0 2px 6px #0003}.laser-pointer-slider::-moz-range-thumb{width:20px;height:20px;border-radius:50%;background:var(--fb-interactive-primary);cursor:pointer;border:2px solid var(--fb-surface-background);box-shadow:0 2px 6px #0003}.laser-pointer-slider-value{display:inline-block;margin-left:.75rem;color:var(--fb-interactive-primary);font-weight:600;font-size:.9rem;min-width:3rem}.laser-pointer-toggle{position:relative;display:inline-block;width:50px;height:24px}.laser-pointer-toggle input{opacity:0;width:0;height:0}.laser-pointer-toggle-slider{position:absolute;cursor:pointer;inset:0;background-color:var(--fb-border);transition:.3s;border-radius:24px}.laser-pointer-toggle-slider:before{position:absolute;content:"";height:18px;width:18px;left:3px;bottom:3px;background-color:var(--fb-surface-background);transition:.3s;border-radius:50%;box-shadow:0 2px 4px #0003}.laser-pointer-toggle input:checked+.laser-pointer-toggle-slider{background-color:var(--fb-interactive-primary)}.laser-pointer-toggle input:checked+.laser-pointer-toggle-slider:before{transform:translate(26px)}.laser-pointer-setting-description{font-size:.8rem;color:var(--fb-text-secondary);margin-top:.25rem;line-height:1.4}.laser-pointer-preview{margin-top:1rem;padding:1rem;background:var(--fb-surface-elevated);border-radius:var(--fb-radius-lg);text-align:center}.laser-pointer-preview-line{height:4px;background:var(--fb-error);border-radius:2px;margin:.5rem auto;transition:all .3s ease}.fb-slide__help-modal{position:fixed;top:0;left:0;width:100%;height:100%;background:#000c;display:flex;align-items:center;justify-content:center;z-index:2147483649!important}.fb-slide__help-modal.hidden{display:none}.fb-slide__help-content{background:var(--fb-surface-background);border-radius:.75rem;padding:0;box-shadow:0 20px 40px #0000004d;border:1px solid var(--fb-border-primary);width:90%;max-width:600px;max-height:80vh;display:flex;flex-direction:column;overflow:hidden}.fb-slide__modal-header{display:flex;justify-content:space-between;align-items:center;padding:1rem 1.5rem .75rem;border-bottom:1px solid var(--fb-border)}.fb-slide__modal-title{margin:0;color:var(--fb-text-primary);font-size:1.25rem;font-weight:600}.fb-slide__modal-header .fb-slide__close-btn{background:none;border:none;cursor:pointer;padding:.5rem;border-radius:.375rem;color:var(--fb-text-primary);font-size:1.2rem;opacity:.7;transition:all .2s ease;min-width:auto;width:auto;height:auto}.fb-slide__modal-header .fb-slide__close-btn:hover{opacity:1;background:var(--fb-surface-hover);transform:none}.fb-slide__help-body{padding:1rem;overflow-y:auto;max-height:70vh}.fb-slide__help-section{margin-bottom:1.25rem}.fb-slide__help-section:last-child{margin-bottom:0}.fb-slide__help-section h4{margin:0 0 .75rem;color:var(--fb-text-primary);font-size:1.1rem;font-weight:600;border-bottom:1px solid var(--fb-border);padding-bottom:.25rem}.fb-slide__help-shortcuts{display:flex;flex-direction:column;gap:.5rem}.fb-slide__help-shortcut{display:flex;align-items:center;justify-content:space-between;padding:.25rem 0}.fb-slide__help-keys{display:flex;align-items:center;gap:.25rem;flex-shrink:0}.fb-slide__help-keys kbd{background:var(--fb-surface-elevated);color:var(--fb-text-primary);border:1px solid var(--fb-border-primary);border-radius:.25rem;padding:.25rem .5rem;font-size:.75rem;font-weight:600;font-family:ui-monospace,SFMono-Regular,SF Mono,Monaco,Consolas,Liberation Mono,Courier New,monospace;box-shadow:0 1px 2px #0000001a;min-width:1.5rem;text-align:center}.fb-slide__help-description{color:var(--fb-text-primary);font-size:.9rem;margin-left:1rem;flex:1}.fb-slide__input-error,.fb-slide__goto-input-error{border-color:var(--fb-error)!important;box-shadow:0 0 0 3px color-mix(in srgb,var(--fb-error) 30%,transparent)!important}.fb-slide__error-tooltip{position:absolute;top:-35px;left:50%;transform:translate(-50%);background:var(--fb-error);color:var(--fb-btn-primary-text);padding:5px 10px;border-radius:4px;font-size:12px;white-space:nowrap;z-index:1000;pointer-events:none}.fb-slide__error-tooltip-container{position:relative}@supports not (color: color-mix(in srgb,red,blue)){.fb-slide__input-error,.fb-slide__goto-input-error{box-shadow:0 0 0 3px #ef44444d!important}.fb-slide__search-modal{background:#000c}}@media (max-width: 768px){.fb-slide__search-keyboard-hints{gap:.5rem}.fb-slide__keyboard-hint{font-size:.7rem}.fb-slide__keyboard-hint kbd{font-size:.6rem;padding:.1rem .3rem;min-width:1rem}.fb-slide__help-content{width:95%;max-height:85vh}.fb-slide__help-body{padding:1rem;max-height:75vh}.fb-slide__help-shortcut{flex-direction:column;align-items:flex-start;gap:.5rem;padding:.75rem 0;border-bottom:1px solid var(--fb-border)}.fb-slide__help-shortcut:last-child{border-bottom:none}.fb-slide__help-description{margin-left:0;font-size:.85rem}.fb-slide__help-keys kbd{font-size:.7rem;padding:.2rem .4rem}}[role=dialog] *:focus{outline:2px solid var(--fb-interactive-primary);outline-offset:2px;border-radius:4px}.fb-slide__modal *:focus{outline:2px solid var(--fb-interactive-primary);outline-offset:2px}.fb-slide__modal[role=dialog],.fb-slide__goto-modal[role=dialog]{position:relative}.fb-slide__input[aria-invalid=true],.fb-slide__goto-input[aria-invalid=true]{border-color:var(--fb-error)!important;box-shadow:0 0 0 3px color-mix(in srgb,var(--fb-error) 30%,transparent)!important}.fb-slide__error-tooltip[role=alert]{position:absolute;top:-35px;left:50%;transform:translate(-50%);background:var(--fb-error);color:var(--fb-btn-primary-text);padding:5px 10px;border-radius:4px;font-size:12px;white-space:nowrap;z-index:1000;pointer-events:none;font-weight:600;box-shadow:0 2px 8px #0003}.fb-slide__search-result-item:focus{outline:2px solid var(--fb-interactive-primary);outline-offset:2px}@media (prefers-contrast: high){[role=dialog] *:focus{outline:3px solid var(--fb-text-primary);outline-offset:3px;background:var(--fb-semantic-warning)}.fb-slide__error-tooltip[role=alert]{background:var(--fb-text-primary);color:var(--fb-surface-background);border:2px solid var(--fb-surface-background)}}@media (prefers-reduced-motion: reduce){.fb-slide__search-result-item{transition:none;animation:none}.fb-slide__search-highlight{animation:none}.fb-slide__reading-mode-highlight{transition:none}@keyframes 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cubic-bezier(.4,0,.2,1);box-shadow:0 2px 8px var(--fb-interactive-primary-light),0 0 0 1px #ffffff1a,inset 0 1px #fff3;border:1px solid rgba(255,255,255,.2);position:relative;overflow:hidden}.fb-slide__toc-item-number:after{content:"";position:absolute;inset:-2px;background:conic-gradient(from 0deg,transparent 0deg,var(--fb-interactive-primary) 90deg,transparent 360deg);border-radius:50%;opacity:0;transition:opacity .3s ease;z-index:-1}.fb-slide__toc-item-container:hover .fb-slide__toc-item-number:after{opacity:1;animation:rotate 2s linear infinite}.fb-slide__toc-item-number:before{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:conic-gradient(from 0deg,transparent,rgba(255,255,255,.3),transparent);animation:rotate 3s linear infinite;opacity:0;transition:opacity .3s}.fb-slide__toc-item-container:hover .fb-slide__toc-item-number{background:var(--fb-interactive-primary);transform:scale(1.2) rotate(10deg);box-shadow:0 6px 20px var(--fb-interactive-primary-light);border-color:#fff6}.fb-slide__toc-item-container:hover .fb-slide__toc-item-number:before{opacity:1}.fb-slide__toc-item-title{flex:1;text-align:left;transition:all .3s ease;font-weight:500;word-wrap:break-word;overflow-wrap:break-word;display:flex;flex-direction:column;gap:4px}.fb-slide__toc-item-main-title{font-size:1rem;font-weight:inherit;line-height:1.3;margin:0;color:var(--fb-component-toc-text)!important}.fb-slide__toc-item-meta{display:flex;gap:12px;align-items:center;font-size:.75rem;opacity:.7;transition:opacity .3s ease;color:inherit!important}.fb-slide__toc-reading-time{display:flex;align-items:center;gap:4px;color:var(--fb-text-secondary)!important;font-weight:500}.fb-slide__toc-reading-time .fb-slide__toc-icon{display:inline-flex;align-items:center;margin-right:6px;flex-shrink:0}.fb-slide__toc-reading-time .fb-slide__toc-icon svg{width:16px;height:16px;color:var(--fb-text-muted);stroke:var(--fb-text-muted)}.fb-slide__toc-item.active .fb-slide__toc-reading-time .fb-slide__toc-icon svg{color:var(--fb-slide-indicator-text);stroke:var(--fb-slide-indicator-text);opacity:.7}.fb-slide__toc-bookmark-indicator{display:flex;align-items:center;gap:2px;color:var(--fb-semantic-warning)!important;font-weight:600;opacity:.9}.fb-slide__toc-bookmark-indicator .fb-slide__toc-icon{display:inline-flex;align-items:center;margin-right:4px;flex-shrink:0}.fb-slide__toc-bookmark-indicator .fb-slide__toc-icon svg{width:16px;height:16px;color:var(--fb-semantic-warning);fill:var(--fb-semantic-warning)}.fb-slide__toc-item.active .fb-slide__toc-bookmark-indicator .fb-slide__toc-icon svg{color:var(--fb-semantic-warning);fill:var(--fb-semantic-warning);filter:brightness(1.2)}.fb-slide__toc-item-preview{position:absolute;top:0;left:calc(100% + 12px);width:300px;background:var(--fb-surface-background);border:2px solid var(--fb-component-toc-border);border-radius:12px;padding:16px;box-shadow:0 12px 32px #00000026;z-index:1000;opacity:0;transform:translate(-10px) scale(.95);transition:all .3s cubic-bezier(.4,0,.2,1);pointer-events:none;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}.fb-slide__toc-item-container:hover .fb-slide__toc-item-preview{opacity:1;transform:translate(0) scale(1);pointer-events:auto}.fb-slide__toc-preview-content{font-size:.85rem;line-height:1.4;color:var(--fb-component-toc-text);max-height:120px;overflow:hidden;position:relative}.fb-slide__toc-preview-content:after{content:"";position:absolute;bottom:0;left:0;right:0;height:20px;background:linear-gradient(transparent,var(--fb-surface-background))}.fb-slide__toc-item-container:hover .fb-slide__toc-item-title{font-weight:600;text-shadow:0 2px 8px var(--fb-interactive-primary-light)}.fb-slide__toc-content .fb-slide__toc-item-container.h3{margin-left:1.5rem!important;background:none!important;border-color:var(--fb-component-toc-border)!important;box-shadow:0 1px 6px 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var(--fb-interactive-primary-light),0 0 0 1px var(--fb-interactive-primary-light);position:relative;z-index:10}.fb-slide__toc-item:focus-visible{background:var(--fb-interactive-primary-light);border-color:var(--fb-interactive-primary)}.fb-slide__toc-item:focus:not(:focus-visible){outline:none}@media (prefers-contrast: high){.fb-slide__toc-item:focus{outline:4px solid var(--fb-component-toc-text);background:var(--fb-semantic-warning);color:var(--fb-component-toc-text)}}@media (prefers-reduced-motion: reduce){.fb-slide__toc-item,.fb-slide__toc-item-number,.fb-slide__toc-item-preview{transition:none;animation:none}.fb-slide__toc-item:hover{transform:none}.fb-slide__toc-item-number:before,.fb-slide__toc-item-number:after{animation:none}}@supports not (color: color-mix(in srgb,red,blue)){.fb-slide__toc-item.h2{background:#10b9811a}.fb-slide__toc-item.h3{background:#f59e0b1a}.fb-slide__toc-item.h4{background:#ef44441a}}@keyframes rotate{0%{transform:rotate(0)}to{transform:rotate(360deg)}}