:root{--hlc-lime: #bff355;--hlc-midnight: #002236;--hlc-cyan: #9fe3d9;--hlc-cream: #eee5e1;--hlc-lime-rgb: 191 243 85;--hlc-midnight-rgb: 0 34 54;--hlc-cyan-rgb: 159 227 217;--hlc-cream-rgb: 238 229 225;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 1.5rem;--space-8: 2rem;--space-10: 2.5rem;--space-12: 3rem;--space-16: 4rem;--space-20: 5rem;--space-24: 6rem;--font-sans: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: ui-monospace, "SFMono-Regular", "Menlo", monospace;--text-sm: .875rem;--text-base: 1rem;--text-lg: 1.125rem;--text-xl: 1.25rem;--text-2xl: 1.5rem;--text-3xl: 1.875rem;--text-4xl: 2.25rem;--text-5xl: 3rem;--leading-tight: 1.2;--leading-normal: 1.55;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--container-max: 1100px;--prose-max: 42rem;--nav-rail-collapsed: 64px;--nav-rail-width: 240px;--bottom-nav-height: 56px;--bg-primary: var(--hlc-cream);--bg-surface: #ffffff;--bg-elevated: #f7f3ee;--text-primary: var(--hlc-midnight);--text-secondary: #34495a;--text-muted: #6b7a8a;--border-primary: rgb(var(--hlc-midnight-rgb) / .1);--border-secondary: rgb(var(--hlc-midnight-rgb) / .18);--accent: var(--hlc-lime);--accent-hover: #a8e23a;--accent-soft: rgb(var(--hlc-lime-rgb) / .18);--accent-fg: var(--hlc-midnight);--accent-text: var(--hlc-midnight);--error: #b00020;--success: #1b5e20;--shadow-sm: 0 1px 2px rgb(var(--hlc-midnight-rgb) / .06);--shadow-md: 0 6px 18px -8px rgb(var(--hlc-midnight-rgb) / .18);--shadow-lg: 0 24px 48px -24px rgb(var(--hlc-midnight-rgb) / .28);color-scheme:light}[data-theme=dark]{--bg-primary: var(--hlc-midnight);--bg-surface: #07304b;--bg-elevated: #0e3e5d;--text-primary: var(--hlc-cream);--text-secondary: rgb(var(--hlc-cream-rgb) / .78);--text-muted: rgb(var(--hlc-cream-rgb) / .55);--border-primary: rgb(var(--hlc-cream-rgb) / .12);--border-secondary: rgb(var(--hlc-cream-rgb) / .22);--accent: var(--hlc-lime);--accent-hover: #d8f78a;--accent-soft: rgb(var(--hlc-lime-rgb) / .16);--accent-fg: var(--hlc-midnight);--accent-text: var(--hlc-lime);--error: #ff6b6b;--success: #6bcf7f;--shadow-sm: 0 1px 2px rgb(0 0 0 / .4);--shadow-md: 0 6px 18px -8px rgb(0 0 0 / .5);--shadow-lg: 0 24px 48px -24px rgb(0 0 0 / .6);color-scheme:dark}@media(prefers-color-scheme:dark){:root:not([data-theme]){--bg-primary: var(--hlc-midnight);--bg-surface: #07304b;--bg-elevated: #0e3e5d;--text-primary: var(--hlc-cream);--text-secondary: rgb(var(--hlc-cream-rgb) / .78);--text-muted: rgb(var(--hlc-cream-rgb) / .55);--border-primary: rgb(var(--hlc-cream-rgb) / .12);--border-secondary: rgb(var(--hlc-cream-rgb) / .22);--accent: var(--hlc-lime);--accent-hover: #d8f78a;--accent-soft: rgb(var(--hlc-lime-rgb) / .16);--accent-fg: var(--hlc-midnight);--accent-text: var(--hlc-lime);--error: #ff6b6b;--success: #6bcf7f;--shadow-sm: 0 1px 2px rgb(0 0 0 / .4);--shadow-md: 0 6px 18px -8px rgb(0 0 0 / .5);--shadow-lg: 0 24px 48px -24px rgb(0 0 0 / .6);color-scheme:dark}}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{font-size:16px;scroll-behavior:smooth}body{background:var(--bg-primary);color:var(--text-primary);font-family:var(--font-sans);line-height:var(--leading-normal);min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:inherit;text-decoration:none}a:hover{color:var(--accent-text)}button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:none;cursor:pointer}input,textarea{font-family:inherit;font-size:inherit;color:inherit}::selection{background:var(--accent-soft);color:var(--text-primary)}.skip-link{position:absolute;left:-9999px;top:0;z-index:100;background:var(--bg-surface);color:var(--text-primary);padding:var(--space-2) var(--space-4);border:1px solid var(--border-primary);border-radius:var(--radius-md)}.skip-link:focus{left:var(--space-4);top:var(--space-4)}.pane{width:var(--rail-collapsed-width, 64px);flex-shrink:0;position:fixed;top:0;bottom:0;background:var(--bg-surface);display:flex;flex-direction:column;overflow:hidden;transition:width .15s ease;z-index:30}.pane--left{left:0;border-right:1px solid var(--border-primary)}.pane--right{right:0;border-left:1px solid var(--border-primary)}.pane.expanded,.pane.pinned,.pane:focus-within{width:var(--_w)}.pane.resizing{transition:none}.pane-header{display:flex;align-items:center;height:3.5rem;flex-shrink:0;border-bottom:1px solid var(--border-primary);overflow:hidden}.pane-header-label{flex:1;min-width:0;cursor:default}.pane-header-label:hover{background:none;color:var(--text-secondary)}.pane-nav{flex:1 1 auto;overflow-x:hidden;overflow-y:auto;min-height:0;padding:var(--space-2) 0}.pane-group{margin-top:var(--space-3);padding-top:var(--space-3);border-top:1px solid var(--border-primary)}.pane-group:first-child{margin-top:0;padding-top:var(--space-1);border-top:none}.pane-group-label{padding:0 var(--space-3) var(--space-2);font-family:var(--font-mono);font-size:.66rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted);opacity:0;white-space:nowrap;overflow:hidden;transition:opacity .15s ease}.pane.expanded .pane-group-label,.pane.pinned .pane-group-label,.pane.open .pane-group-label,.pane:focus-within .pane-group-label{opacity:1}.pane-empty{padding:0 var(--space-3);font-size:var(--text-sm);color:var(--text-muted)}.pane-list{list-style:none;display:flex;flex-direction:column}.pane-item{display:flex;align-items:center;min-height:2.25rem;width:100%;border:none;background:none;cursor:pointer;font-size:var(--text-sm);font-weight:600;color:var(--text-secondary);text-align:left;text-decoration:none;border-radius:var(--radius-sm)}.pane-item:hover{background:var(--accent-soft);color:var(--text-primary)}.pane-item.current-section{background:var(--accent-soft);color:var(--accent-text)}.pane-item.current{background:var(--accent);color:var(--accent-fg)}.pane-item-disabled{color:var(--text-muted);cursor:default}.pane-icon{width:var(--rail-collapsed-width, 64px);flex-shrink:0;display:flex;align-items:center;justify-content:center}.pane-icon svg{width:20px;height:20px}.pane-pin{flex-shrink:0;flex-grow:0;width:var(--rail-collapsed-width, 64px);justify-content:center}.pane-pin[aria-pressed=true]{color:var(--accent-text)}.pane-pin--reveal{width:2rem;opacity:0;pointer-events:none;transition:opacity .15s ease}.pane-pin--reveal .pane-icon{width:auto}.pane.expanded .pane-pin--reveal,.pane.pinned .pane-pin--reveal,.pane:focus-within .pane-pin--reveal{opacity:1;pointer-events:auto}.pane-label{flex:1;min-width:0;opacity:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;padding-right:var(--space-3);transition:opacity .15s ease}.pane.expanded .pane-label,.pane.pinned .pane-label,.pane.open .pane-label,.pane:focus-within .pane-label{opacity:1}.pane-resize-handle{position:absolute;top:0;width:6px;height:100%;background:transparent;border:none;cursor:col-resize;opacity:0;pointer-events:none;padding:0;transition:opacity .15s ease,background .15s ease}.pane--left .pane-resize-handle{right:-3px}.pane--right .pane-resize-handle{left:-3px}.pane.expanded .pane-resize-handle,.pane.pinned .pane-resize-handle,.pane:focus-within .pane-resize-handle{opacity:1;pointer-events:auto}.pane-resize-handle:hover,.pane.resizing .pane-resize-handle{background:var(--accent);opacity:.5}