:root{--graphite-900: #0F1113;--graphite-800: #15181B;--graphite-700: #1A1D21;--graphite-600: #23272C;--graphite-500: #2E343B;--graphite-400: #3A424A;--steel-100: #F4F6F8;--steel-200: #E6E9ED;--steel-300: #C7CCD1;--steel-400: #A6ADB5;--steel-500: #838C96;--steel-600: #616a74;--blue-700: #1E4FD0;--blue-600: #2E6CF6;--blue-500: #4C82FF;--blue-400: #7BA4FF;--blue-glow: rgba(46, 108, 246, .35);--metal-sheen: linear-gradient(135deg, #EDF0F3 0%, #C7CCD1 38%, #9AA2AB 62%, #E4E8EC 100%);--graphite-sheen: linear-gradient(135deg, #23272C 0%, #15181B 55%, #0F1113 100%);--blue-sheen: linear-gradient(135deg, #4C82FF 0%, #2E6CF6 55%, #1E4FD0 100%);--bg: var(--steel-100);--bg-elevated: #FFFFFF;--bg-inverse: var(--graphite-700);--surface: #FFFFFF;--surface-muted: var(--steel-200);--border: #DDE2E7;--border-strong: #C7CCD1;--text: #14171A;--text-muted: #4A525B;--text-subtle: #6B7480;--text-inverse: #F4F6F8;--text-inverse-muted: #A6ADB5;--accent: var(--blue-600);--accent-hover: var(--blue-700);--accent-contrast: #FFFFFF;--success: #1F9D5B;--warning: #C9860B;--danger: #D33B3B;--danger-hover: #B32E2E;--focus-ring: 0 0 0 3px var(--blue-glow);--font-sans: "Inter", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;--font-display: "Space Grotesk", "Inter", system-ui, sans-serif;--font-mono: "JetBrains Mono", "SFMono-Regular", ui-monospace, Consolas, monospace;--fs-2xs: .6875rem;--fs-xs: .75rem;--fs-sm: .875rem;--fs-base: 1rem;--fs-md: 1.125rem;--fs-lg: 1.375rem;--fs-xl: 1.75rem;--fs-2xl: 2.25rem;--fs-3xl: 3rem;--fs-4xl: clamp(2.75rem, 6vw, 4.5rem);--lh-tight: 1.1;--lh-snug: 1.28;--lh-normal: 1.6;--tracking-tight: -.02em;--tracking-wide: .02em;--tracking-caps: .14em;--sp-1: .25rem;--sp-2: .5rem;--sp-3: .75rem;--sp-4: 1rem;--sp-5: 1.5rem;--sp-6: 2rem;--sp-7: 3rem;--sp-8: 4rem;--sp-9: 6rem;--sp-10: 8rem;--container: 1200px;--container-narrow: 820px;--radius-sm: 6px;--radius: 10px;--radius-lg: 16px;--radius-xl: 24px;--radius-pill: 999px;--shadow-sm: 0 1px 2px rgba(15, 17, 19, .06), 0 1px 3px rgba(15, 17, 19, .08);--shadow: 0 4px 12px rgba(15, 17, 19, .08), 0 2px 4px rgba(15, 17, 19, .06);--shadow-lg: 0 18px 40px rgba(15, 17, 19, .14), 0 6px 12px rgba(15, 17, 19, .08);--shadow-blue: 0 8px 24px rgba(46, 108, 246, .28);--header-h: 76px;--z-header: 100;--z-float: 90;--z-modal: 200;--transition: .18s cubic-bezier(.4, 0, .2, 1);--chrome-sheen: var(--graphite-sheen);--chrome-solid: var(--graphite-900);--chrome-header: color-mix(in srgb, var(--graphite-900) 82%, transparent);--chrome-header-scrolled: color-mix(in srgb, var(--graphite-900) 96%, transparent);--chrome-text: #ffffff;--chrome-text-muted: var(--steel-300);--chrome-text-subtle: var(--steel-400);--chrome-border: rgba(255, 255, 255, .08);--grid-line: rgba(199, 204, 209, .05)}html[data-theme=light]{--bg: #ffffff;--chrome-sheen: linear-gradient(135deg, #ffffff 0%, #eef1f4 58%, #e6e9ed 100%);--chrome-solid: #ffffff;--chrome-header: color-mix(in srgb, #ffffff 82%, transparent);--chrome-header-scrolled: color-mix(in srgb, #ffffff 96%, transparent);--chrome-text: #14171a;--chrome-text-muted: #4a525b;--chrome-text-subtle: #6b7480;--chrome-border: #dde2e7;--grid-line: rgba(46, 108, 246, .07)}.on-dark{--text: var(--text-inverse);--text-muted: var(--text-inverse-muted);--surface: var(--graphite-600);--border: rgba(255, 255, 255, .1)}html[data-theme=light] .on-dark{--text: #14171a;--text-muted: #4a525b;--surface: #ffffff;--border: #dde2e7}*,*:before,*:after{box-sizing:border-box}*{margin:0}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--header-h) + 1rem)}body{font-family:var(--font-sans);font-size:var(--fs-base);line-height:var(--lh-normal);color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;min-height:100dvh}img,picture,svg,video{display:block;max-width:100%;height:auto}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit;color:inherit}h1,h2,h3,h4{font-family:var(--font-display);line-height:var(--lh-tight);letter-spacing:var(--tracking-tight);font-weight:600;text-wrap:balance}p{text-wrap:pretty}:focus-visible{outline:none;box-shadow:var(--focus-ring);border-radius:var(--radius-sm)}::selection{background:var(--blue-600);color:#fff}.container{width:100%;max-width:var(--container);margin-inline:auto;padding-inline:var(--sp-5)}.container-narrow{max-width:var(--container-narrow)}.section{padding-block:var(--sp-9)}.section-sm{padding-block:var(--sp-7)}.eyebrow{display:inline-flex;align-items:center;gap:var(--sp-2);font-family:var(--font-mono);font-size:var(--fs-xs);font-weight:600;letter-spacing:var(--tracking-caps);text-transform:uppercase;color:var(--accent)}.eyebrow:before{content:"";width:22px;height:2px;background:var(--accent);display:inline-block}.section-title{font-size:var(--fs-2xl);margin-top:var(--sp-3)}.section-lead{color:var(--text-muted);font-size:var(--fs-md);margin-top:var(--sp-3);max-width:60ch}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--sp-2);padding:.75rem 1.4rem;border-radius:var(--radius);font-weight:600;font-size:var(--fs-sm);letter-spacing:.01em;border:1px solid transparent;cursor:pointer;transition:transform var(--transition),box-shadow var(--transition),background var(--transition),border-color var(--transition);white-space:nowrap}.btn:active{transform:translateY(1px)}.btn-primary{background:var(--blue-sheen);color:#fff;box-shadow:var(--shadow-blue)}.btn-primary:hover{box-shadow:0 10px 30px #2e6cf666;transform:translateY(-1px)}.btn-ghost{background:transparent;color:var(--text);border-color:var(--border-strong)}.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}.btn-dark{background:var(--graphite-700);color:#fff}.btn-dark:hover{background:var(--graphite-600)}.on-dark .btn-ghost{color:var(--chrome-text, #fff);border-color:var(--chrome-border, rgba(255,255,255,.28))}.on-dark .btn-ghost:hover{border-color:var(--chrome-text-subtle, #fff);background:color-mix(in srgb,var(--chrome-text, #fff) 8%,transparent)}.btn-lg{padding:.95rem 1.8rem;font-size:var(--fs-base)}.btn-block{width:100%}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition)}.card-hover:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--border-strong)}.badge{display:inline-flex;align-items:center;gap:.35rem;padding:.25rem .6rem;border-radius:var(--radius-pill);font-size:var(--fs-xs);font-weight:600;background:var(--surface-muted);color:var(--text-muted)}.badge-blue{background:#2e6cf61a;color:var(--blue-700)}.rule{height:1px;background:var(--border);border:0}.prose{max-width:72ch;color:var(--text);line-height:1.75}.prose>*+*{margin-top:1.1em}.prose h2{font-size:var(--fs-xl);margin-top:1.8em}.prose h3{font-size:var(--fs-lg);margin-top:1.4em}.prose a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}.prose ul,.prose ol{padding-left:1.4em}.prose li+li{margin-top:.4em}.prose img{border-radius:var(--radius);margin-block:1.5em}.prose blockquote{border-left:3px solid var(--accent);padding-left:1.2em;color:var(--text-muted);font-style:italic}.prose code{font-family:var(--font-mono);font-size:.9em;background:var(--surface-muted);padding:.15em .4em;border-radius:var(--radius-sm)}.grid{display:grid;gap:var(--sp-5)}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}@media(max-width:900px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}@media(max-width:620px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.section{padding-block:var(--sp-7)}}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.001ms!important;transition-duration:.001ms!important;scroll-behavior:auto!important}}