@font-face{font-family:Inter;font-style:normal;font-weight:400;font-display:swap;src:url(/fonts/inter-400.woff2) format("woff2")}[hidden]{display:none!important}@font-face{font-family:Inter;font-style:normal;font-weight:500;font-display:swap;src:url(/fonts/inter-500.woff2) format("woff2")}@font-face{font-family:Inter;font-style:normal;font-weight:600;font-display:swap;src:url(/fonts/inter-600.woff2) format("woff2")}@font-face{font-family:Inter;font-style:normal;font-weight:700;font-display:swap;src:url(/fonts/inter-700.woff2) format("woff2")}@font-face{font-family:JetBrains Mono;font-style:normal;font-weight:400;font-display:swap;src:url(/fonts/jbmono-400.woff2) format("woff2")}@font-face{font-family:JetBrains Mono;font-style:normal;font-weight:500;font-display:swap;src:url(/fonts/jbmono-500.woff2) format("woff2")}:root{--ink-abyss: #070d1a;--ink-deep: #0c1726;--ink-shelf: #13233d;--ink-edge: #1d3354;--ice-100: #f3f8ff;--ice-200: #bccfdf;--ice-300: #7891b1;--ice-400: #3d5a7e;--ice-cyan: #9ad8ff;--ice-cyan-bright: #d6ecff;--depth-red: #ff5d54;--paper-warm: #f5f1e8;--button-ink: #06111b;--header-bg: rgba(7, 13, 26, .84);--mobile-trigger-bg: rgba(7, 13, 26, .88);--mobile-overlay-bg: rgba(7, 13, 26, .94);--section-tint-start: rgba(7, 13, 26, .58);--section-tint-end: rgba(7, 13, 26, .72);--section-solid: rgba(6, 13, 24, .58);--card-bg: rgba(12, 26, 44, .68);--card-hover: rgba(154, 216, 255, .09);--footer-bg: rgba(7, 13, 26, .74);--float-bg: rgba(19, 35, 61, .92);--ghost-bg: rgba(7, 13, 26, .32);--ghost-border: var(--ink-edge);--ghost-color: var(--ice-100);--hero-shadow: rgba(7, 13, 26, .72);--hero-scrim-strong: rgba(7, 13, 26, .98);--hero-scrim-soft: rgba(7, 13, 26, .55);--modal-backdrop-bg: rgba(7, 13, 26, .78);--bg-image-filter: saturate(.5) contrast(1.12) brightness(.48) hue-rotate(195deg);--bg-image-opacity: .76;--bg-image-position: center 28%;--grain-opacity: .42;--veil-primary: radial-gradient(58% 48% at 50% 34%, transparent 0%, rgba(7, 13, 26, 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#ffffff;--ink-edge: #c2d0d6;--ice-100: #0b2236;--ice-200: #2a4558;--ice-300: #4a6575;--ice-400: #6d8592;--ice-cyan: #05648f;--ice-cyan-bright: #044f72;--depth-red: #b0342e;--paper-warm: #fcfaf4;--button-ink: #ffffff;--header-bg: rgba(244, 248, 248, .9);--mobile-trigger-bg: rgba(244, 248, 248, .94);--mobile-overlay-bg: rgba(232, 240, 242, .97);--section-tint-start: rgba(232, 240, 242, .48);--section-tint-end: rgba(244, 248, 248, .68);--section-solid: rgba(238, 244, 245, .54);--card-bg: rgba(255, 255, 255, .82);--card-hover: #f7fbfb;--footer-bg: rgba(228, 237, 239, .74);--float-bg: rgba(255, 255, 255, .96);--ghost-bg: rgba(255, 255, 255, .72);--ghost-border: #8aa0ab;--ghost-color: #0b2236;--hero-shadow: rgba(11, 34, 54, .12);--hero-scrim-strong: rgba(244, 248, 248, .92);--hero-scrim-soft: rgba(244, 248, 248, .42);--modal-backdrop-bg: rgba(11, 34, 54, .36);--bg-image-filter: saturate(.72) contrast(.95) brightness(1.05) hue-rotate(8deg);--bg-image-opacity: .82;--bg-image-position: center 22%;--grain-opacity: .12;--veil-primary: radial-gradient(52% 42% at 50% 36%, rgba(255, 255, 255, .06) 0%, rgba(232, 240, 242, .12) 48%, rgba(232, 240, 242, .56) 100%), linear-gradient(180deg, rgba(244, 248, 248, .64) 0%, rgba(244, 248, 248, .3) 16%, rgba(232, 240, 242, .08) 36%, rgba(232, 240, 242, .4) 72%, rgba(238, 244, 245, .74) 100%);--veil-accent: radial-gradient(42% 32% at 28% 22%, rgba(154, 216, 255, .14), transparent 70%), radial-gradient(38% 28% at 76% 68%, rgba(5, 100, 143, .08), transparent 72%);color-scheme:light}:root.theme-dark,:root:not([data-theme=light]){color-scheme:dark}*{box-sizing:border-box}html{min-width:320px;background:var(--ink-abyss);scroll-behavior:smooth}body{min-width:320px;min-height:100vh;margin:0;background:var(--ink-abyss);color:var(--ice-100);transition:background-color var(--duration) var(--ease-out),color var(--duration) var(--ease-out)}button,input,textarea{font:inherit}.skip-link{position:absolute;left:-9999px;top:0}.skip-link:focus{left:1rem;top:1rem;z-index:9999;padding:.5rem .75rem;background:var(--ink-shelf);color:var(--ice-100);border:1px solid var(--ink-edge);border-radius:4px}main:focus{outline:none}button,a{-webkit-tap-highlight-color:transparent}button{border:0;cursor:pointer;background:transparent;color:inherit}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--ice-cyan);outline-offset:3px}::selection{background:var(--ice-cyan);color:var(--ink-abyss)}.page-width{width:100%;max-width:1280px;margin:0 auto;padding:0 40px}.mono{font-family:var(--font-mono);font-feature-settings:"tnum" on,"ss01" on;letter-spacing:.04em}.mono-label{font-family:var(--font-mono);font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--ice-300)}.rule{height:1px;background:var(--ink-edge)}.site-shell{position:relative;display:flex;min-height:100vh;flex-direction:column;background:var(--ink-abyss);color:var(--ice-100);overflow-x:hidden;transition:background-color var(--duration) var(--ease-out),color var(--duration) var(--ease-out)}.bg-image{position:fixed;inset:0;z-index:0;background-image:url(/images/lp-iceberg.png);background-size:cover;background-position:var(--bg-image-position);background-repeat:no-repeat;filter:var(--bg-image-filter);opacity:var(--bg-image-opacity);pointer-events:none;transform:scale(1.06);transition:filter var(--duration) var(--ease-out),opacity var(--duration) var(--ease-out),background-position var(--duration) var(--ease-out)}.bg-veil{position:fixed;inset:0;z-index:1;pointer-events:none;overflow:hidden;transition:opacity var(--duration) var(--ease-out)}.bg-veil:before{content:"";position:absolute;inset:0;background:var(--veil-primary)}.bg-veil:after{content:"";position:absolute;inset:0;background:var(--veil-accent)}.bg-folio{position:absolute;z-index:0;top:32px;font-family:var(--font-mono);font-size:10px;letter-spacing:.32em;text-transform:uppercase;color:var(--ice-400);pointer-events:none;-webkit-user-select:none;user-select:none}.bg-folio-left{left:32px}.bg-folio-right{right:32px;text-align:right}.site-header{position:sticky;top:0;z-index:30;width:100%;background:var(--header-bg);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);border-bottom:1px solid var(--ink-edge)}.site-header-inner{display:flex;width:100%;max-width:1280px;min-height:58px;margin:0 auto;align-items:center;gap:32px;padding:12px 40px}.brand-link{display:inline-flex;align-items:center;flex-shrink:0}.brand-logo{display:block;height:36px;width:auto;object-fit:contain}.desktop-nav{display:flex;flex:1;align-items:stretch;align-self:stretch;gap:4px;min-width:0}.nav-link{position:relative;display:inline-flex;align-items:center;padding:0 10px;font-family:var(--font-ui);font-size:13px;font-weight:500;color:var(--ice-300);letter-spacing:.01em;white-space:nowrap;transition:color var(--duration-fast) var(--ease-out)}.nav-link:hover,.nav-link.is-active{color:var(--ice-100)}.nav-link.is-active:after{content:"";position:absolute;left:10px;right:10px;bottom:0;height:1.5px;background:var(--ice-cyan);border-radius:1px}.header-tools{display:inline-flex;align-items:center;gap:14px;flex-shrink:0}.lang-switch{display:inline-flex;align-items:center;gap:4px;font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase}.lang-button{min-height:44px;padding:6px 4px;color:var(--ice-300);transition:color var(--duration-fast) var(--ease-out)}.lang-button:hover{color:var(--ice-100)}.lang-button.is-active{color:var(--ice-cyan)}.lang-sep{color:var(--ice-400)}.theme-toggle{display:inline-flex;width:44px;height:44px;flex-shrink:0;align-items:center;justify-content:center;border:1px solid var(--ink-edge);border-radius:999px;background:var(--ghost-bg);color:var(--ice-100);transition:background-color var(--duration-fast) var(--ease-out),border-color var(--duration-fast) var(--ease-out),color var(--duration-fast) var(--ease-out)}.theme-toggle:hover{border-color:var(--ice-cyan);color:var(--ice-cyan)}.theme-toggle svg{width:17px;height:17px}.theme-icon-moon{display:none}:root.theme-light .theme-icon-sun{display:none}:root.theme-light .theme-icon-moon{display:block}.button-primary{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:44px;padding:11px 20px;font-family:var(--font-ui);font-size:13px;font-weight:600;letter-spacing:.03em;color:var(--button-ink);background:var(--ice-cyan);border-radius:var(--radius-sm);transition:background var(--duration-fast) var(--ease-out),transform var(--duration-fast) var(--ease-out)}.button-primary:hover{background:var(--ice-cyan-bright)}.button-primary:active{transform:translateY(1px)}.button-ghost{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:11px 18px;font-family:var(--font-ui);font-size:13px;font-weight:600;color:var(--ghost-color);border:1px solid var(--ghost-border);background:var(--ghost-bg);border-radius:var(--radius-sm);transition:border-color var(--duration-fast) var(--ease-out),color var(--duration-fast) var(--ease-out),background-color var(--duration-fast) var(--ease-out)}.button-ghost:hover{border-color:var(--ice-cyan);color:var(--ice-cyan);background:color-mix(in srgb,var(--ice-cyan) 8%,var(--ghost-bg))}.button-link{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-ui);font-size:13px;font-weight:500;color:var(--ice-cyan);letter-spacing:.02em;transition:gap var(--duration-fast) var(--ease-out)}.button-link:hover{gap:12px}.button-link .arrow{transition:transform var(--duration-fast) var(--ease-out)}.button-link:hover .arrow{transform:translate(2px)}.stack-gap-md{margin-top:28px}.stack-gap-sm{margin-bottom:12px}.lang-cluster{display:inline-flex;align-items:center;gap:4px}.mobile-menu-trigger{position:fixed;top:14px;right:16px;z-index:40;display:none;width:40px;height:40px;align-items:center;justify-content:center;border:1px solid var(--ink-edge);border-radius:999px;background:var(--mobile-trigger-bg);color:var(--ice-100);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.mobile-menu-overlay{position:fixed;inset:0;z-index:50;background:var(--mobile-overlay-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.mobile-menu-panel{position:absolute;top:0;right:0;width:min(86vw,380px);height:100%;padding:28px;border-left:1px solid var(--ink-edge);background:var(--ink-deep);color:var(--ice-100);display:flex;flex-direction:column}.mobile-menu-topline{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}.mobile-close{width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--ink-edge);border-radius:999px;color:var(--ice-200)}.mobile-close svg{width:16px;height:16px}.mobile-nav{display:flex;flex-direction:column;gap:6px}.mobile-nav-link{display:flex;align-items:baseline;justify-content:space-between;padding:14px 0;border-bottom:1px solid var(--ink-edge);font-family:var(--font-display);font-size:26px;font-weight:600;color:var(--ice-200);letter-spacing:-.02em}.mobile-nav-link.is-active{color:var(--ice-cyan)}.mobile-nav-link .mono-label{font-size:10px;letter-spacing:.18em}.mobile-tools{margin-top:auto;display:flex;flex-direction:column;gap:14px;padding-top:24px;border-top:1px solid var(--ink-edge)}.site-main{position:relative;z-index:10;flex:1;display:flex;flex-direction:column}.section-tint{position:relative;background:linear-gradient(180deg,var(--section-tint-start) 0%,var(--section-tint-end) 100%)}.hero{position:relative;padding:100px 0 120px;width:100%;isolation:isolate}.hero:before{position:absolute;z-index:-1;inset:24px 0;background:radial-gradient(ellipse at center,var(--hero-scrim-soft) 0%,transparent 72%);content:"";pointer-events:none}.hero>.page-width{display:flex;flex-direction:column;align-items:center;text-align:center}.hero-eyebrow{display:inline-flex;align-items:center;gap:10px;margin-bottom:28px}.hero-eyebrow .marker{width:6px;height:6px;background:var(--ice-cyan);border-radius:999px}.hero-thesis{font-family:var(--font-display);font-size:clamp(3.1rem,5.7vw,5.8rem);font-weight:700;letter-spacing:-.045em;line-height:.98;color:var(--ice-100);max-width:15ch;margin:0;text-wrap:balance;text-shadow:0 4px 32px var(--hero-shadow)}.hero-thesis em{font-style:normal;font-weight:700;color:var(--ice-cyan)}.hero-thesis-sub{margin-top:32px;max-width:54ch;font-size:1.0625rem;line-height:1.72;color:var(--ice-200);font-weight:400;text-shadow:0 2px 16px var(--hero-shadow)}.hero-actions{display:flex;align-items:center;gap:18px;margin-top:44px;flex-wrap:wrap;justify-content:center}.hero-meta{display:flex;align-items:center;gap:18px;margin-top:64px;padding-top:28px;border-top:1px solid var(--ink-edge);max-width:640px;width:100%;justify-content:center}.hero-meta-item{display:flex;flex-direction:column;gap:4px}.hero-meta-item .v{font-family:var(--font-mono);font-size:18px;color:var(--ice-100);font-feature-settings:"tnum" on}.hero-meta-item .l{font-family:var(--font-mono);font-size:10px;letter-spacing:.22em;text-transform:uppercase;color:var(--ice-300)}.index-strip{position:relative;padding:60px 0 80px;border-top:1px solid var(--ink-edge)}.index-header{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:36px;gap:24px;flex-wrap:wrap}.index-header h2{font-family:var(--font-display);font-size:clamp(1.6rem,2.4vw,2.2rem);font-weight:700;letter-spacing:-.02em;line-height:1.15;margin:0;max-width:28ch;color:var(--ice-100)}.index-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid var(--ink-edge);border-left:1px solid var(--ink-edge)}.index-tile{position:relative;padding:32px 28px 28px;border-right:1px solid var(--ink-edge);border-bottom:1px solid var(--ink-edge);display:flex;flex-direction:column;gap:18px;min-height:200px;background:var(--card-bg)}.index-tile .k{font-family:var(--font-mono);font-size:10px;letter-spacing:.22em;text-transform:uppercase;color:var(--ice-300)}.index-tile .v{font-family:var(--font-mono);font-size:clamp(2.4rem,4vw,3.4rem);font-weight:500;color:var(--ice-100);font-feature-settings:"tnum" on;line-height:1;letter-spacing:-.02em}.index-tile .v .u{font-size:.45em;color:var(--ice-300);margin-left:6px;letter-spacing:0}.index-tile .d{font-size:13px;line-height:1.55;color:var(--ice-200);margin:0}.index-tile .bar{margin-top:auto;position:relative;height:3px;background:var(--ink-edge);border-radius:999px;overflow:hidden}.index-tile .bar .fill{position:absolute;top:0;left:0;bottom:0;background:var(--ice-cyan)}.index-tile.is-risk .v{color:var(--depth-red)}.index-tile.is-risk .bar .fill{background:var(--depth-red)}.chain{padding:80px 0;border-top:1px solid var(--ink-edge)}.chain-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:60px;align-items:start}.chain-intro h2{font-family:var(--font-display);font-size:clamp(1.8rem,2.6vw,2.6rem);font-weight:700;letter-spacing:-.025em;line-height:1.15;margin:18px 0 0;color:var(--ice-100)}.chain-intro p{margin:20px 0 0;font-size:16px;line-height:1.7;color:var(--ice-200);max-width:48ch}.chain-flow{position:relative;display:flex;flex-direction:column;border-top:1px solid var(--ink-edge)}.chain-row{display:grid;grid-template-columns:96px 1fr auto;gap:24px;align-items:baseline;padding:22px 0;border-bottom:1px solid var(--ink-edge)}.chain-row .n{font-family:var(--font-mono);font-size:11px;letter-spacing:.22em;color:var(--ice-400)}.chain-row .t{font-family:var(--font-display);font-size:22px;font-weight:600;letter-spacing:-.02em;color:var(--ice-100);line-height:1.2}.chain-row .d{font-size:14px;line-height:1.6;color:var(--ice-300);margin:6px 0 0;max-width:56ch}.chain-row 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var(--ink-edge);border-bottom:1px solid var(--ink-edge);background:var(--card-bg);text-align:left;transition:background .2s ease;min-height:200px}.nav-card:hover{background:var(--card-hover)}.nav-card .ix{font-family:var(--font-mono);font-size:11px;letter-spacing:.22em;color:var(--ice-300)}.nav-card .ttl{font-family:var(--font-display);font-size:22px;font-weight:600;letter-spacing:-.02em;line-height:1.2;color:var(--ice-100);margin:0}.nav-card .dsc{font-size:14px;line-height:1.65;color:var(--ice-200);margin:0}.nav-card .go{margin-top:auto;display:inline-flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--ice-300);transition:color .16s ease,gap .16s ease}.nav-card:hover .go{color:var(--ice-cyan);gap:12px}.nav-card .go .arrow{width:14px;height:14px}.section-page{padding:80px 0 100px;background:var(--section-solid)}.section-page-header{display:grid;grid-template-columns:96px 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