@import url("https://fonts.googleapis.com/css2?family=Source+Serif+4:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500;1,600;1,700&family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap");:root{--c-navy:#1b2838;--c-navy-mid:#243447;--c-navy-light:#2e4057;--c-steel:#2f7a9c;--c-steel-light:#3b96bf;--c-steel-pale:#e8f3f9;--c-steel-wash:#f1f7fa;--c-bg:#fafbfc;--c-bg-warm:#f5f6f8;--c-white:#fff;--c-border:#dde1e6;--c-text:#1a1f2b;--c-text-secondary:#5a6372;--c-text-muted:#8c95a4;--c-green:#1a7a4a;--c-green-pale:#e9f7ef;--c-amber:#8a6200;--c-amber-pale:#fdf5e1;--c-red:#a03020;--c-red-pale:#fceeed;--font-serif:"Source Serif 4",Georgia,"Times New Roman",serif;--font-sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;--font-mono:"JetBrains Mono","Fira Code","Cascadia Code",Consolas,monospace;--fs-xs:0.75rem;--fs-sm:0.875rem;--fs-base:1rem;--fs-lg:1.125rem;--fs-xl:1.25rem;--fs-2xl:1.5rem;--fs-3xl:1.875rem;--fs-4xl:2.25rem;--sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:20px;--sp-6:24px;--sp-8:32px;--sp-10:40px;--sp-12:48px;--r:10px;--r-sm:6px;--r-lg:16px;--r-full:9999px;--shadow:0 2px 16px rgba(27,40,56,.07);--shadow-elevated:0 8px 32px rgba(27,40,56,.12);--shadow-inset:inset 0 1px 3px rgba(27,40,56,.06);--shadow-sm:0 1px 8px rgba(27,40,56,.06);--shadow-card:0 2px 16px rgba(27,40,56,.08);--shadow-hover:0 4px 20px rgba(27,40,56,.12);--transition:200ms ease;--transition-slow:400ms ease;--sidebar-width:260px;--topbar-height:56px;--property-panel-width:280px;--primary-blue:var(--c-steel);--primary-blue-hover:var(--c-steel-light);--text-primary:var(--c-text);--text-secondary:var(--c-text-secondary);--text-tertiary:var(--c-text-muted);--bg-secondary:var(--c-bg-warm);--border-color:var(--c-border)}[data-theme=dark]{--c-bg:#1a1f2b;--c-bg-warm:#252a38;--c-white:#2d3444;--c-border:#3d4555;--c-text:#e8eaed;--c-text-secondary:#b8bbc2;--c-text-muted:#8c95a4;--c-navy:#e8f3f9;--c-navy-mid:#c7dee9;--c-navy-light:#a6cfdf;--c-steel:#5ba4c8;--c-steel-light:#7bb8d4;--c-steel-pale:#2f4555;--c-steel-wash:#283645;--c-green:#3fa96e;--c-green-pale:#1f3d2e;--c-amber:#d4a627;--c-amber-pale:#3d3520;--c-red:#e85740;--c-red-pale:#3d241f;--shadow:0 2px 16px rgba(0,0,0,.4);--shadow-elevated:0 8px 32px rgba(0,0,0,.6);--shadow-inset:inset 0 1px 3px rgba(0,0,0,.3);--shadow-sm:0 1px 8px rgba(0,0,0,.3);--shadow-card:0 2px 16px rgba(0,0,0,.5);--shadow-hover:0 4px 20px rgba(0,0,0,.6)}*{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-sans);font-size:var(--fs-base);line-height:1.6;color:var(--c-text);background-color:var(--c-bg)}h1,h2,h3,h4{font-family:var(--font-serif);font-weight:600;line-height:1.3}h1{font-size:var(--fs-4xl)}h2{font-size:var(--fs-3xl)}h3{font-size:var(--fs-2xl)}h4{font-size:var(--fs-xl)}.mono,code,pre{font-family:var(--font-mono)}a{color:var(--c-steel);text-decoration:none;transition:color var(--transition)}a:hover{color:var(--c-steel-light)}:focus-visible{outline:2px solid var(--c-steel);outline-offset:2px;border-radius:var(--r-sm)}.slide-default{background:var(--c-bg)}.slide-warm{background:var(--c-bg-warm)}.slide-dark{background:linear-gradient(135deg,var(--c-navy) 0,var(--c-navy-light) 100%);color:#fff}.slide-accent{background:linear-gradient(135deg,var(--c-steel) 0,var(--c-steel-light) 100%);color:#fff}.slide-hero{background:linear-gradient(135deg,var(--c-navy) 0,var(--c-steel) 100%);color:#fff}