:root {
    --bg: #0b0f13;
    --bg-2: #10161c;
    --ink: #0d1217;
    --paper: #f2f0e9;
    --paper-2: #e7e4db;
    --white: #fbfaf6;
    --muted: #8f9aa4;
    --muted-dark: #58616a;
    --line-dark: rgba(13, 18, 23, 0.16);
    --line-light: rgba(255, 255, 255, 0.14);
    --accent: #c7a264;
    --accent-soft: #e1c99d;
    --shell: min(1440px, calc(100vw - 80px));
    --header-h: 86px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
    font-size: 16px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}
body.nav-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
::selection { background: var(--accent); color: var(--ink); }

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}
.skip-link {
    position: fixed;
    left: 20px;
    top: 20px;
    z-index: 1000;
    transform: translateY(-150%);
    background: var(--white);
    color: var(--ink);
    padding: 12px 16px;
    font-weight: 700;
}
.skip-link:focus { transform: translateY(0); }
.shell { width: var(--shell); margin-inline: auto; }

.site-header {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 100;
    height: var(--header-h);
    border-bottom: 1px solid rgba(255,255,255,0.09);
    background: rgba(11, 15, 19, 0.7);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    transition: background 180ms ease, box-shadow 180ms ease;
}
.site-header.is-scrolled {
    background: rgba(11, 15, 19, 0.94);
    box-shadow: 0 14px 40px rgba(0,0,0,0.2);
}
.header-inner {
    min-height: var(--header-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 34px;
}
.brand {
    display: inline-flex;
    align-items: center;
    gap: 13px;
    min-width: 265px;
}
.brand-mark {
    width: 40px;
    height: 40px;
    display: grid;
    place-items: center;
    flex: 0 0 auto;
}
.brand-mark img { width: 38px; filter: invert(1) brightness(1.7); }
.brand-copy { display: flex; flex-direction: column; color: var(--white); }
.brand-copy strong {
    font-size: 16px;
    line-height: 1;
    letter-spacing: 0.19em;
    font-weight: 760;
}
.brand-copy span {
    margin-top: 7px;
    color: #9ca5ad;
    font-size: 9px;
    line-height: 1;
    letter-spacing: 0.085em;
    text-transform: uppercase;
    white-space: nowrap;
}
.desktop-nav { display: flex; align-items: center; gap: 28px; margin-left: auto; }
.desktop-nav a {
    color: #b7bec5;
    font-size: 12px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: color 160ms ease;
}
.desktop-nav a:hover, .desktop-nav a:focus-visible { color: var(--white); }
.header-actions { display: flex; align-items: center; gap: 14px; }
.header-cta {
    padding: 11px 15px;
    border: 1px solid rgba(255,255,255,0.25);
    color: var(--white);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.09em;
    text-transform: uppercase;
    transition: background 160ms ease, color 160ms ease, border-color 160ms ease;
}
.header-cta:hover, .header-cta:focus-visible { background: var(--white); color: var(--ink); border-color: var(--white); }
.nav-toggle { display: none; background: transparent; border: 0; width: 44px; height: 44px; padding: 12px; }
.nav-toggle span:not(.sr-only) { display: block; height: 1px; background: var(--white); margin: 5px 0; }
.mobile-nav { display: none; }

.hero {
    min-height: 820px;
    position: relative;
    overflow: hidden;
    background:
        linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px),
        radial-gradient(circle at 77% 27%, rgba(199,162,100,0.11), transparent 28%),
        var(--bg);
    background-size: 46px 46px, 46px 46px, auto, auto;
    color: var(--white);
    padding-top: calc(var(--header-h) + 112px);
}
.hero::before {
    content: "";
    position: absolute;
    inset: var(--header-h) 0 auto 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0 8%, rgba(255,255,255,0.14) 8% 92%, transparent 92%);
}
.hero-orbit {
    position: absolute;
    width: 720px;
    height: 720px;
    right: -115px;
    top: 65px;
    opacity: 0.055;
    pointer-events: none;
}
.hero-orbit img { width: 100%; filter: invert(1); }
.hero-grid {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(360px, 0.58fr);
    gap: 9vw;
    align-items: end;
}
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: var(--accent-soft);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}
.eyebrow span { width: 38px; height: 1px; background: var(--accent); }
.hero h1 {
    margin: 32px 0 30px;
    max-width: 920px;
    font-size: clamp(64px, 6.6vw, 116px);
    line-height: 0.88;
    letter-spacing: -0.058em;
    font-weight: 690;
}
.hero h1 em { color: #9ea8b1; font-style: normal; font-weight: 360; }
.hero-lede {
    max-width: 780px;
    margin: 0;
    color: #c4cbd1;
    font-size: clamp(19px, 1.65vw, 26px);
    line-height: 1.5;
    letter-spacing: -0.018em;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 38px; }
.button {
    min-height: 52px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 22px;
    padding: 0 20px;
    border: 1px solid transparent;
    font-size: 11px;
    font-weight: 780;
    letter-spacing: 0.11em;
    text-transform: uppercase;
    transition: transform 160ms ease, background 160ms ease, color 160ms ease, border-color 160ms ease;
}
.button:hover, .button:focus-visible { transform: translateY(-2px); }
.button-primary { background: var(--white); color: var(--ink); }
.button-primary:hover, .button-primary:focus-visible { background: var(--accent-soft); }
.button-secondary { color: var(--white); border-color: rgba(255,255,255,0.26); background: rgba(255,255,255,0.02); }
.button-secondary:hover, .button-secondary:focus-visible { border-color: rgba(255,255,255,0.6); }
.hero-note { margin: 18px 0 0; color: #777f87; font-size: 12px; }
.engagement-panel {
    border: 1px solid rgba(255,255,255,0.16);
    background: rgba(16, 22, 28, 0.74);
    backdrop-filter: blur(8px);
    box-shadow: 0 30px 90px rgba(0,0,0,0.28);
}
.panel-kicker {
    padding: 16px 18px;
    border-bottom: 1px solid var(--line-light);
    color: #8e979f;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}
.investment-block { padding: 27px 24px 25px; border-bottom: 1px solid var(--line-light); }
.investment-block span, .investment-block small { display: block; }
.investment-block span { color: #8f989f; font-size: 11px; text-transform: uppercase; letter-spacing: 0.11em; }
.investment-block strong { display: block; margin: 8px 0 3px; font-size: clamp(38px, 3.2vw, 54px); letter-spacing: -0.05em; line-height: 1; }
.investment-block small { color: var(--accent-soft); font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; }
.panel-list { margin: 0; padding: 0; }
.panel-list > div { display: grid; grid-template-columns: 95px 1fr; gap: 15px; padding: 19px 24px; border-bottom: 1px solid var(--line-light); }
.panel-list dt { color: #7e8890; font-size: 10px; text-transform: uppercase; letter-spacing: 0.1em; }
.panel-list dd { margin: 0; color: #c9d0d5; font-size: 13px; line-height: 1.45; }
.text-link { display: flex; justify-content: space-between; align-items: center; padding: 18px 24px; color: var(--white); font-size: 11px; font-weight: 720; letter-spacing: 0.09em; text-transform: uppercase; }
.text-link:hover, .text-link:focus-visible { color: var(--accent-soft); }
.hero-rail {
    position: relative;
    z-index: 2;
    display: flex;
    justify-content: space-between;
    gap: 24px;
    margin-top: 100px;
    padding: 18px 0 25px;
    border-top: 1px solid rgba(255,255,255,0.12);
    color: #626d75;
    font-size: 9px;
    font-weight: 720;
    letter-spacing: 0.17em;
}

.section { padding: 130px 0; }
.intro-section { background: var(--paper); }
.split-heading { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 10vw; align-items: start; }
.section-number {
    margin-bottom: 22px;
    color: #717a82;
    font-size: 10px;
    font-weight: 760;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}
.section-number-light { color: #78838d; }
h2 {
    margin: 0;
    max-width: 920px;
    font-size: clamp(44px, 4.6vw, 78px);
    line-height: 0.98;
    letter-spacing: -0.048em;
    font-weight: 650;
}
.section-copy { max-width: 650px; padding-top: 34px; }
.section-copy p, .section-head > p, .system-copy p, .experience-copy p { color: var(--muted-dark); font-size: 16px; }
.lead { color: var(--ink) !important; font-size: clamp(19px, 1.5vw, 24px) !important; line-height: 1.5; letter-spacing: -0.017em; }

.section-dark { background: #27313a; color: var(--white); }
.section-dark .section-number { color: #9aa5ad; }
.section-dark .section-head > p { color: #c4ccd2; }
.section-head { display: grid; grid-template-columns: 1.3fr 0.55fr; gap: 9vw; align-items: end; margin-bottom: 68px; }
.section-head > p { margin: 0 0 4px; max-width: 520px; }
.mode-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line-light); border-left: 1px solid var(--line-light); }
.mode-card { min-height: 355px; padding: 28px 26px 24px; border-right: 1px solid var(--line-light); border-bottom: 1px solid var(--line-light); display: flex; flex-direction: column; }
.mode-index { color: var(--accent); font-size: 10px; font-weight: 800; letter-spacing: 0.12em; }
.mode-card h3 { margin: 66px 0 18px; font-size: 38px; line-height: 1; letter-spacing: -0.045em; font-weight: 620; }
.mode-card p { margin: 0; color: #c1c9cf; font-size: 14px; }
.mode-line { margin-top: auto; padding-top: 35px; color: #e0e5e8; font-size: 9px; letter-spacing: 0.11em; text-transform: uppercase; }

.services-section { background: var(--white); }
.service-list { border-top: 1px solid var(--line-dark); }
.service-row {
    display: grid;
    grid-template-columns: 70px minmax(280px, 0.95fr) 1.05fr;
    gap: 3vw;
    padding: 42px 0 46px;
    border-bottom: 1px solid var(--line-dark);
}
.service-no { color: #8c949a; font-size: 10px; font-weight: 750; letter-spacing: 0.12em; padding-top: 7px; }
.service-title h3 { margin: 0 0 10px; font-size: clamp(27px, 2.3vw, 39px); line-height: 1.05; letter-spacing: -0.036em; font-weight: 650; }
.service-title span { display: block; max-width: 470px; color: #747d84; font-size: 13px; line-height: 1.5; }
.service-copy p { max-width: 650px; margin: 0 0 20px; color: #3b444b; font-size: 15px; }
.service-copy ul { display: flex; flex-wrap: wrap; gap: 7px; margin: 0; padding: 0; list-style: none; }
.service-copy li { border: 1px solid #d2d0c8; padding: 7px 9px; color: #5e666c; font-size: 9px; letter-spacing: 0.08em; text-transform: uppercase; }

.system-section { background: #dcd8cc; padding: 130px 0; overflow: hidden; }
.system-grid { display: grid; grid-template-columns: 1fr 0.95fr; gap: 10vw; align-items: center; }
.system-visual {
    position: relative;
    min-height: 590px;
    overflow: hidden;
    border: 1px solid rgba(13,18,23,0.17);
    background:
        linear-gradient(rgba(13,18,23,0.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(13,18,23,0.045) 1px, transparent 1px),
        linear-gradient(90deg, transparent calc(50% - 0.5px), rgba(13,18,23,0.10) 50%, transparent calc(50% + 0.5px)),
        linear-gradient(transparent calc(50% - 0.5px), rgba(13,18,23,0.10) 50%, transparent calc(50% + 0.5px)),
        radial-gradient(circle at 50% 50%, rgba(255,255,255,0.48), rgba(255,255,255,0.08) 56%, transparent 72%);
    background-size: 36px 36px, 36px 36px, auto, auto, auto;
    box-shadow: inset 0 0 0 1px rgba(255,255,255,0.2);
}
.system-visual::before, .system-visual::after { content: ""; position: absolute; border: 1px solid rgba(13,18,23,0.14); border-radius: 50%; inset: 11%; }
.system-visual::after { inset: 27%; border-color: rgba(199,162,100,0.34); }
.system-core { position: absolute; left: 50%; top: 50%; width: 166px; height: 166px; transform: translate(-50%, -50%); background: #111820; border: 1px solid rgba(199,162,100,0.36); display: grid; place-items: center; box-shadow: 0 26px 60px rgba(13,18,23,0.22), 0 0 0 12px rgba(255,255,255,0.28); }
.system-core img { width: 82px; filter: invert(1) brightness(1.8); opacity: 0.92; }
.system-core span { position: absolute; bottom: 17px; color: #aab3ba; font-size: 8px; font-weight: 760; letter-spacing: 0.17em; }
.system-node { position: absolute; padding: 9px 12px; background: rgba(242,240,233,0.94); border: 1px solid rgba(13,18,23,0.24); box-shadow: 0 8px 20px rgba(13,18,23,0.06); font-size: 9px; font-weight: 820; letter-spacing: 0.14em; }
.system-node::before { content: ""; display: inline-block; width: 4px; height: 4px; margin-right: 7px; vertical-align: 2px; background: var(--accent); }
.node-1 { left: 12%; top: 17%; }.node-2 { right: 10%; top: 20%; }.node-3 { right: 8%; bottom: 20%; }.node-4 { left: 12%; bottom: 15%; }.node-5 { left: 6%; top: 49%; }.node-6 { right: 4%; top: 49%; }
.system-copy h2 { max-width: 750px; }
.system-copy .lead { margin-top: 36px; }
.principle-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 34px; }
.principle-row span { border: 1px solid rgba(13,18,23,0.19); padding: 8px 10px; font-size: 9px; font-weight: 780; letter-spacing: 0.1em; text-transform: uppercase; }

.method-section { background: var(--paper); }
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line-dark); border-left: 1px solid var(--line-dark); }
.process-step { min-height: 270px; padding: 24px 22px; border-right: 1px solid var(--line-dark); border-bottom: 1px solid var(--line-dark); }
.process-step span { color: #8c949a; font-size: 10px; font-weight: 780; letter-spacing: 0.12em; }
.process-step h3 { margin: 70px 0 12px; font-size: 25px; letter-spacing: -0.035em; }
.process-step p { margin: 0; color: #667077; font-size: 13px; }
.process-step-final { grid-column: span 2; background: var(--bg); color: var(--white); }
.process-step-final p { color: #9aa4ac; max-width: 520px; }
.process-step-final span { color: var(--accent); }

.experience-section { background: var(--white); }
.experience-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 10vw; align-items: start; }
.experience-copy { position: sticky; top: calc(var(--header-h) + 35px); }
.experience-copy .lead { margin-top: 34px; }
.timeline { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--line-dark); }
.timeline li { display: grid; grid-template-columns: 105px 1fr; gap: 26px; padding: 30px 0 31px; border-bottom: 1px solid var(--line-dark); }
.timeline > li > span { color: var(--accent); font-size: 26px; line-height: 1; letter-spacing: -0.03em; }
.timeline strong { display: block; margin-bottom: 6px; font-size: 21px; letter-spacing: -0.02em; }
.timeline p { margin: 0; color: #737c83; font-size: 13px; }

.principles-section { background: #2b343d; color: var(--white); }
.principles-section .section-number { color: #a0aab2; }
.principles-grid { display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid var(--line-light); border-left: 1px solid var(--line-light); }
.principles-grid article { min-height: 285px; padding: 24px 20px; border-right: 1px solid var(--line-light); border-bottom: 1px solid var(--line-light); }
.principles-grid span { color: var(--accent); font-size: 10px; font-weight: 800; letter-spacing: 0.12em; }
.principles-grid h3 { margin: 86px 0 12px; font-size: 24px; }
.principles-grid p { margin: 0; color: #c1c8ce; font-size: 13px; }

.contact-section { background: #27313a; color: var(--white); padding: 145px 0 120px; border-top: 1px solid rgba(255,255,255,0.13); }
.contact-grid { display: grid; grid-template-columns: 0.78fr 1.22fr; gap: 9vw; align-items: start; }
.contact-copy { position: sticky; top: calc(var(--header-h) + 35px); }
.contact-copy h2 { max-width: 650px; }
.contact-lede { max-width: 600px; margin: 31px 0 0; color: #d0d6da; font-size: 20px; line-height: 1.55; letter-spacing: -0.015em; }
.fit-box { margin-top: 44px; border-top: 1px solid var(--line-light); padding-top: 22px; }
.fit-box > span { color: var(--accent-soft); font-size: 10px; font-weight: 780; letter-spacing: 0.14em; text-transform: uppercase; }
.fit-box ul { list-style: none; padding: 0; margin: 18px 0 0; }
.fit-box li { position: relative; padding: 11px 0 11px 22px; border-bottom: 1px solid rgba(255,255,255,0.11); color: #bec7cd; font-size: 13px; }
.fit-box li::before { content: "+"; position: absolute; left: 0; color: var(--accent); }
.contact-form-wrap { border: 1px solid rgba(255,255,255,0.18); background: #1c252d; padding: 32px; }
.project-form { display: grid; gap: 21px; }
.form-row { display: grid; gap: 9px; }
.form-row.two-col { grid-template-columns: 1fr 1fr; gap: 16px; }
.project-form label { display: grid; gap: 9px; }
.project-form label > span { color: #b1bac1; font-size: 9px; font-weight: 780; letter-spacing: 0.12em; text-transform: uppercase; }
.project-form input, .project-form select, .project-form textarea {
    width: 100%;
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 0;
    background: #141c23;
    color: var(--white);
    outline: none;
    padding: 14px 14px;
    transition: border-color 150ms ease, background 150ms ease;
}
.project-form input, .project-form select { min-height: 52px; }
.project-form textarea { resize: vertical; min-height: 170px; }
.project-form input:focus, .project-form select:focus, .project-form textarea:focus { border-color: var(--accent); background: #10171d; }
.project-form textarea::placeholder { color: #7f8a92; }
.project-form select { color-scheme: dark; }
.form-submit-row { display: flex; align-items: center; justify-content: space-between; gap: 25px; padding-top: 8px; }
.form-submit-row p { margin: 0; max-width: 380px; color: #a3adb5; font-size: 10px; }
.button-submit { border: 0; background: var(--accent-soft); color: var(--ink); min-width: 220px; }
.button-submit:hover, .button-submit:focus-visible { background: var(--white); }
.hp-field { position: absolute !important; left: -9999px !important; width: 1px !important; height: 1px !important; overflow: hidden !important; }
.form-alert { margin-bottom: 22px; padding: 15px 17px; border: 1px solid; font-size: 13px; }
.form-alert-success { border-color: rgba(122,177,141,0.5); background: rgba(122,177,141,0.08); color: #bfe0ca; }
.form-alert-error { border-color: rgba(199,162,100,0.5); background: rgba(199,162,100,0.08); color: var(--accent-soft); }
.form-alert code { font-size: 0.95em; }

.site-footer { background: #080b0f; color: var(--white); border-top: 1px solid rgba(255,255,255,0.1); }
.footer-grid { display: grid; grid-template-columns: 1.2fr 0.5fr 0.8fr; gap: 8vw; padding: 70px 0 55px; }
.brand-footer .brand-mark { width: 44px; height: 44px; }
.footer-brand p { max-width: 500px; margin: 24px 0 0; color: #6f7a83; font-size: 13px; }
.footer-links, .footer-statement { display: flex; flex-direction: column; align-items: flex-start; gap: 10px; }
.footer-label { margin-bottom: 9px; color: #505c65; font-size: 9px; font-weight: 780; letter-spacing: 0.14em; text-transform: uppercase; }
.footer-links a { color: #858f97; font-size: 12px; }
.footer-links a:hover, .footer-links a:focus-visible { color: var(--white); }
.footer-statement strong { max-width: 300px; font-size: 26px; line-height: 1.1; letter-spacing: -0.03em; }
.footer-statement a { margin-top: 10px; color: var(--accent-soft); font-size: 10px; font-weight: 760; letter-spacing: 0.1em; text-transform: uppercase; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding: 21px 0 27px; border-top: 1px solid rgba(255,255,255,0.08); color: #4f5a63; font-size: 9px; letter-spacing: 0.09em; text-transform: uppercase; }

.reveal { opacity: 1; transform: none; }
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity 620ms ease, transform 620ms ease; }
.js .reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (max-width: 1180px) {
    :root { --shell: min(100% - 52px, 1200px); }
    .desktop-nav { display: none; }
    .nav-toggle { display: block; }
    .mobile-nav {
        display: block;
        position: fixed;
        left: 0;
        right: 0;
        top: var(--header-h);
        height: calc(100vh - var(--header-h));
        background: rgba(11,15,19,0.98);
        transform: translateY(-110%);
        opacity: 0;
        pointer-events: none;
        transition: transform 220ms ease, opacity 220ms ease;
    }
    .mobile-nav.is-open { transform: translateY(0); opacity: 1; pointer-events: auto; }
    .mobile-nav-inner { display: flex; flex-direction: column; padding-top: 35px; }
    .mobile-nav a { padding: 18px 0; border-bottom: 1px solid rgba(255,255,255,0.1); color: var(--white); font-size: 20px; }
    .hero-grid { gap: 5vw; }
    .hero h1 { font-size: clamp(58px, 7vw, 86px); }
    .mode-grid { grid-template-columns: repeat(2, 1fr); }
    .process-grid { grid-template-columns: repeat(3, 1fr); }
    .process-step-final { grid-column: span 1; }
    .principles-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 900px) {
    :root { --shell: calc(100vw - 36px); --header-h: 76px; }
    .header-cta { display: none; }
    .brand { min-width: 0; }
    .brand-copy span { display: none; }
    .hero { min-height: 0; padding-top: calc(var(--header-h) + 82px); }
    .hero-grid, .split-heading, .section-head, .system-grid, .experience-grid, .contact-grid { grid-template-columns: 1fr; }
    .hero-grid { gap: 62px; }
    .hero h1 { font-size: clamp(54px, 13vw, 86px); }
    .hero-lede { font-size: 19px; }
    .engagement-panel { max-width: 620px; }
    .hero-rail { overflow-x: auto; justify-content: flex-start; padding-bottom: 20px; margin-top: 76px; }
    .hero-rail span { min-width: max-content; }
    .section { padding: 92px 0; }
    .section-copy { padding-top: 0; }
    .section-head { gap: 28px; margin-bottom: 48px; }
    .service-row { grid-template-columns: 46px 1fr; gap: 20px; }
    .service-copy { grid-column: 2; }
    .system-section { padding: 92px 0; }
    .system-grid { gap: 58px; }
    .system-visual { min-height: 480px; }
    .experience-copy, .contact-copy { position: static; }
    .principles-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-grid { gap: 55px; }
}

@media (max-width: 620px) {
    :root { --shell: calc(100vw - 28px); }
    .site-header { backdrop-filter: blur(12px); }
    .brand-copy strong { font-size: 14px; }
    .brand-mark { width: 34px; height: 34px; }
    .brand-mark img { width: 32px; }
    .hero { padding-top: calc(var(--header-h) + 64px); }
    .hero h1 { margin-top: 24px; font-size: clamp(50px, 15vw, 72px); line-height: 0.92; }
    .hero-lede { font-size: 17px; }
    .hero-actions { align-items: stretch; flex-direction: column; }
    .hero-actions .button { width: 100%; }
    .panel-list > div { grid-template-columns: 1fr; gap: 5px; }
    .hero-orbit { width: 520px; height: 520px; right: -240px; top: 120px; }
    h2 { font-size: clamp(40px, 12vw, 58px); }
    .mode-grid, .process-grid, .principles-grid { grid-template-columns: 1fr; }
    .mode-card { min-height: 290px; }
    .mode-card h3 { margin-top: 44px; }
    .service-row { grid-template-columns: 1fr; gap: 12px; padding: 34px 0; }
    .service-copy { grid-column: 1; }
    .service-no { padding-top: 0; }
    .system-visual { min-height: 390px; }
    .system-core { width: 130px; height: 130px; }
    .system-core img { width: 66px; }
    .node-6, .node-5 { display: none; }
    .timeline li { grid-template-columns: 74px 1fr; gap: 16px; }
    .timeline > li > span { font-size: 21px; }
    .contact-section { padding: 95px 0 80px; }
    .contact-form-wrap { padding: 20px; }
    .form-row.two-col { grid-template-columns: 1fr; }
    .form-submit-row { align-items: stretch; flex-direction: column; }
    .button-submit { width: 100%; }
    .footer-grid { grid-template-columns: 1fr; gap: 44px; }
    .footer-bottom { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
    .reveal { opacity: 1; transform: none; }
}

/* ARXIMUS platform-specific adaptations. The original layout system is preserved. */
.system-security {
    background: #27313a;
    color: var(--white);
}
.system-security .section-number { color: #9aa5ad; }
.system-security .system-copy h2 { color: var(--white); }
.system-security .system-copy p { color: #c4ccd2; }
.system-security .system-copy .lead { color: #f7f6f2 !important; }
.system-security .principle-row span {
    color: #d7dde1;
    border-color: rgba(255,255,255,0.16);
    background: rgba(255,255,255,0.025);
}
.system-diagram { width: 100%; }
.system-diagram svg { display: block; overflow: visible; }
.deployment-list > li > span {
    font-size: clamp(16px, 1.65vw, 24px);
    font-weight: 650;
    letter-spacing: -0.02em;
}

@media (max-width: 620px) {
    .system-diagram { overflow: hidden; }
    .system-diagram svg { width: 122%; max-width: none; margin-left: -11%; }
    .deployment-list > li > span { font-size: 14px; letter-spacing: 0; }
}