/* =========================================================
       ARUS ROBOTICS — INTELLIGENCE PAGE
       ========================================================= */

    :root {
      --paper: #f2f0e9;
      --paper-2: #e5e2d8;
      --paper-3: #d8d5cb;

      --ink: #10110f;
      --ink-2: #1b1c19;
      --ink-soft: #43453f;
      --muted: #7b7d76;

      --blue: #1648ff;
      --orange: #ff5a1f;
      --acid: #d7ff38;

      --white: #ffffff;

      --line: rgba(16, 17, 15, 0.16);
      --line-light: rgba(255, 255, 255, 0.18);

      --max: 1500px;
      --gutter: 38px;
    }

    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      background: var(--paper);
      color: var(--ink);

      font-family:
        Arial,
        Helvetica,
        sans-serif;

      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

    button {
      font: inherit;
    }

    svg {
      display: block;
    }

    ::selection {
      background: var(--blue);
      color: white;
    }

    .container {
      width: min(
        calc(100% - (var(--gutter) * 2)),
        var(--max)
      );

      margin-inline: auto;
    }

    .mono {
      font-family:
        "Courier New",
        Courier,
        monospace;
    }

    /* =========================================================
       TYPOGRAPHY
       ========================================================= */

    .display {
      font-size: clamp(66px, 9vw, 155px);

      font-weight: 800;
      line-height: 0.82;

      letter-spacing: -0.08em;
      text-transform: uppercase;
    }

    .display-medium {
      font-size: clamp(50px, 6.8vw, 106px);

      font-weight: 800;
      line-height: 0.86;

      letter-spacing: -0.07em;
      text-transform: uppercase;
    }

    .heading {
      font-size: clamp(32px, 4vw, 64px);

      font-weight: 750;

      line-height: 0.95;
      letter-spacing: -0.055em;
    }

    .eyebrow {
      display: flex;
      align-items: center;
      gap: 10px;

      font-family:
        "Courier New",
        Courier,
        monospace;

      font-size: 10px;

      text-transform: uppercase;
      letter-spacing: 0.08em;
    }

    .eyebrow::before {
      content: "";

      width: 7px;
      height: 7px;

      background: var(--orange);
    }

    .section-index {
      font-family:
        "Courier New",
        Courier,
        monospace;

      font-size: 10px;

      text-transform: uppercase;
      letter-spacing: 0.08em;

      color: var(--muted);
    }

    /* =========================================================
       NAVIGATION
       ========================================================= */

    .nav {
      position: fixed;
      top: 0;
      left: 0;

      width: 100%;
      z-index: 100;

      border-bottom: 1px solid transparent;

      transition:
        background 0.25s ease,
        border-color 0.25s ease;
    }

    .nav.scrolled {
      background: rgba(242, 240, 233, 0.95);

      backdrop-filter: blur(10px);

      border-color: var(--line);
    }

    .nav-inner {
      min-height: 86px;

      display: grid;

      grid-template-columns:
        230px
        1fr
        auto;

      align-items: center;

      gap: 30px;
    }

    .brand {
      display: flex;
      align-items: center;

      gap: 13px;

      font-size: 20px;

      font-weight: 800;
      letter-spacing: -0.04em;
    }

    .brand-mark {
      width: 34px;
      height: 34px;

      background: var(--ink);

      position: relative;
    }

    .brand-mark::before {
      content: "";

      position: absolute;

      top: 0;
      right: 0;

      width: 12px;
      height: 12px;

      background: var(--orange);
    }

    .brand-mark::after {
      content: "";

      position: absolute;

      left: 6px;
      bottom: 6px;

      width: 7px;
      height: 18px;

      background: var(--paper);
    }

    .nav-links {
      display: flex;

      justify-content: center;

      gap: 34px;

      font-size: 11px;

      text-transform: uppercase;
      letter-spacing: 0.05em;
    }

    .nav-links a {
      opacity: 0.58;

      transition: opacity 0.2s ease;
    }

    .nav-links a:hover,
    .nav-links a.active {
      opacity: 1;
    }

    .nav-links a.active {
      font-weight: 700;
    }

    .nav-cta {
      min-height: 44px;

      padding-inline: 18px;

      display: inline-flex;
      align-items: center;
      justify-content: center;

      border: 1px solid var(--ink);

      font-size: 10px;

      text-transform: uppercase;
      letter-spacing: 0.06em;

      transition:
        background 0.2s ease,
        color 0.2s ease;
    }

    .nav-cta:hover {
      background: var(--ink);
      color: var(--paper);
    }

    /* =========================================================
       HERO
       ========================================================= */

    .hero {
      padding-top: 86px;

      border-bottom: 1px solid var(--ink);
    }

    .hero-grid {
      min-height: 850px;

      display: grid;

      grid-template-columns:
        minmax(0, 1fr)
        minmax(460px, 0.9fr);

      border-left: 1px solid var(--ink);
      border-right: 1px solid var(--ink);
    }

    .hero-copy {
      padding: 70px 45px 45px;

      border-right: 1px solid var(--ink);

      display: flex;
      flex-direction: column;
    }

    .hero-top {
      display: flex;

      justify-content: space-between;

      gap: 30px;

      margin-bottom: 70px;
    }

    .hero h1 span {
      display: block;
    }

    .hero h1 .blue {
      color: var(--blue);
    }

    .hero h1 .muted {
      color: #989890;
    }

    .hero h1 .muted,
    .hero h1 .blue {
      max-width: 100%;
    }

    .hero-bottom {
      margin-top: auto;

      padding-top: 60px;

      display: grid;

      grid-template-columns:
        1fr
        220px;

      gap: 60px;

      align-items: end;
    }

    .hero-description {
      max-width: 650px;

      font-size: clamp(20px, 1.8vw, 28px);

      line-height: 1.32;

      letter-spacing: -0.03em;
    }

    .hero-note {
      font-family:
        "Courier New",
        Courier,
        monospace;

      font-size: 9px;

      line-height: 1.6;

      text-transform: uppercase;
      letter-spacing: 0.06em;

      color: var(--muted);
    }

    /* =========================================================
       HERO SYSTEM MAP
       ========================================================= */

    .hero-system {
      background: var(--ink);

      color: var(--paper);

      position: relative;

      overflow: hidden;
    }

    .hero-system-grid {
      position: absolute;
      inset: 0;

      background-image:
        linear-gradient(
          rgba(255,255,255,0.05) 1px,
          transparent 1px
        ),
        linear-gradient(
          90deg,
          rgba(255,255,255,0.05) 1px,
          transparent 1px
        );

      background-size: 48px 48px;
    }

    .system-interface {
      position: absolute;
      inset: 0;

      padding: 25px;

      display: flex;
      flex-direction: column;
    }

    .system-interface-top {
      display: flex;

      justify-content: space-between;

      font-family:
        "Courier New",
        monospace;

      font-size: 9px;

      text-transform: uppercase;
      letter-spacing: 0.07em;
    }

    .system-interface-top span:last-child {
      color: var(--acid);
    }

    .neural-map {
      position: relative;

      flex: 1;

      display: flex;
      align-items: center;
      justify-content: center;
    }

    .neural-center {
      width: 150px;
      height: 150px;

      border: 1px solid rgba(255,255,255,0.8);

      border-radius: 50%;

      display: grid;
      place-items: center;

      position: relative;

      background: rgba(255,255,255,0.02);
    }

    .neural-center::before {
      content: "";

      width: 18px;
      height: 18px;

      background: var(--blue);

      border-radius: 50%;

      box-shadow:
        0 0 0 10px rgba(22,72,255,0.18),
        0 0 40px rgba(22,72,255,0.75);
    }

    .neural-ring {
      position: absolute;

      border: 1px solid rgba(255,255,255,0.22);

      border-radius: 50%;
    }

    .ring-1 {
      width: 280px;
      height: 280px;

      animation: rotate 18s linear infinite;
    }

    .ring-2 {
      width: 430px;
      height: 430px;

      border-style: dashed;

      animation: rotateReverse 28s linear infinite;
    }

    .ring-3 {
      width: 580px;
      height: 580px;

      opacity: 0.5;
    }

    @keyframes rotate {
      to {
        transform: rotate(360deg);
      }
    }

    @keyframes rotateReverse {
      to {
        transform: rotate(-360deg);
      }
    }

    .node {
      position: absolute;

      min-width: 110px;

      padding: 9px 11px;

      border: 1px solid rgba(255,255,255,0.35);

      background: var(--ink);

      font-family:
        "Courier New",
        monospace;

      font-size: 8px;

      text-transform: uppercase;
      letter-spacing: 0.05em;
    }

    .node span {
      display: block;

      margin-top: 4px;

      color: rgba(255,255,255,0.5);
    }

    .node.one {
      top: 18%;
      left: 8%;
    }

    .node.two {
      top: 18%;
      right: 7%;
    }

    .node.three {
      bottom: 18%;
      left: 9%;
    }

    .node.four {
      bottom: 18%;
      right: 8%;
    }

    .node.five {
      top: 48%;
      right: 2%;
    }

    .connection {
      position: absolute;

      height: 1px;

      background: rgba(255,255,255,0.35);

      transform-origin: left center;
    }

    .c1 {
      width: 155px;
      top: 32%;
      left: 22%;

      transform: rotate(25deg);
    }

    .c2 {
      width: 145px;
      top: 32%;
      right: 22%;

      transform: rotate(-25deg);
    }

    .c3 {
      width: 160px;
      bottom: 31%;
      left: 22%;

      transform: rotate(-25deg);
    }

    .c4 {
      width: 160px;
      bottom: 31%;
      right: 22%;

      transform: rotate(25deg);
    }

    .system-interface-bottom {
      display: grid;

      grid-template-columns:
        repeat(3, 1fr);

      border-top: 1px solid rgba(255,255,255,0.25);
    }

    .system-stat {
      min-height: 80px;

      padding: 15px;

      border-right: 1px solid rgba(255,255,255,0.25);
    }

    .system-stat:last-child {
      border-right: none;
    }

    .system-stat-label {
      font-family:
        "Courier New",
        monospace;

      font-size: 8px;

      text-transform: uppercase;

      color: rgba(255,255,255,0.45);

      margin-bottom: 12px;
    }

    .system-stat-value {
      font-size: 18px;

      font-weight: 700;
    }

    /* =========================================================
       PRINCIPLE STRIP
       ========================================================= */

    .principle-strip {
      background: var(--acid);

      border-bottom: 1px solid var(--ink);
    }

    .principle-grid {
      min-height: 64px;

      display: grid;

      grid-template-columns:
        180px
        repeat(5, 1fr);

      border-left: 1px solid var(--ink);
      border-right: 1px solid var(--ink);
    }

    .principle-cell {
      padding: 0 18px;

      display: flex;
      align-items: center;

      border-right: 1px solid var(--ink);

      font-family:
        "Courier New",
        monospace;

      font-size: 9px;

      text-transform: uppercase;
      letter-spacing: 0.05em;
    }

    .principle-cell:last-child {
      border-right: none;
    }

    /* =========================================================
       INTRO
       ========================================================= */

    .intro {
      padding: 145px 0;

      border-bottom: 1px solid var(--ink);
    }

    .intro-grid {
      display: grid;

      grid-template-columns:
        220px
        1fr;

      gap: 70px;
    }

    .intro-main {
      max-width: 1050px;
    }

    .intro-main h2 {
      margin-bottom: 60px;
    }

    .intro-copy {
      display: grid;

      grid-template-columns:
        1fr
        1fr;

      gap: 70px;
    }

    .intro-copy p:first-child {
      font-size: 23px;

      line-height: 1.4;

      letter-spacing: -0.03em;
    }

    .intro-copy p:last-child {
      font-size: 15px;

      line-height: 1.7;

      color: var(--ink-soft);
    }

    /* =========================================================
       STACK
       ========================================================= */

    .stack {
      border-bottom: 1px solid var(--ink);
    }

    .stack-header {
      min-height: 230px;

      display: grid;

      grid-template-columns:
        220px
        1fr;

      gap: 70px;

      align-items: end;

      padding: 70px 0;
    }

    .stack-list {
      border-top: 1px solid var(--ink);
    }

    .stack-row {
      display: grid;

      grid-template-columns:
        110px
        minmax(250px, 0.75fr)
        minmax(300px, 1fr)
        230px;

      min-height: 230px;

      border-bottom: 1px solid var(--ink);

      transition:
        background 0.2s ease,
        color 0.2s ease;
    }

    .stack-row:last-child {
      border-bottom: none;
    }

    .stack-row:hover {
      background: var(--ink);
      color: var(--paper);
    }

    .stack-row > div {
      padding: 28px;

      border-right: 1px solid currentColor;
    }

    .stack-row > div:last-child {
      border-right: none;
    }

    .stack-id {
      font-family:
        "Courier New",
        monospace;

      font-size: 9px;

      text-transform: uppercase;
    }

    .stack-name {
      font-size: clamp(26px, 3vw, 45px);

      line-height: 0.95;

      font-weight: 750;

      letter-spacing: -0.05em;

      text-transform: uppercase;
    }

    .stack-copy {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .stack-copy p {
      max-width: 570px;

      font-size: 15px;

      line-height: 1.65;

      opacity: 0.72;
    }

    .stack-tech {
      margin-top: 30px;

      display: flex;

      flex-wrap: wrap;

      gap: 8px;
    }

    .stack-tech span {
      padding: 6px 8px;

      border: 1px solid currentColor;

      font-family:
        "Courier New",
        monospace;

      font-size: 8px;

      text-transform: uppercase;
    }

    .stack-state {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .stack-state-label {
      font-family:
        "Courier New",
        monospace;

      font-size: 8px;

      text-transform: uppercase;
    }

    .stack-arrow {
      font-size: 40px;
    }

    /* =========================================================
       WORLD MODEL SECTION
       ========================================================= */

    .world-model {
      background: var(--blue);

      color: white;

      padding: 135px 0;
    }

    .world-grid {
      display: grid;

      grid-template-columns:
        0.8fr
        1.2fr;

      gap: 90px;
    }

    .world-copy .eyebrow::before {
      background: var(--acid);
    }

    .world-copy h2 {
      margin-top: 40px;
    }

    .world-copy p {
      max-width: 520px;

      margin-top: 40px;

      font-size: 18px;

      line-height: 1.55;

      opacity: 0.82;
    }

    .world-interface {
      min-height: 620px;

      border: 1px solid rgba(255,255,255,0.5);

      position: relative;

      overflow: hidden;

      background:
        linear-gradient(
          rgba(255,255,255,0.07) 1px,
          transparent 1px
        ),
        linear-gradient(
          90deg,
          rgba(255,255,255,0.07) 1px,
          transparent 1px
        );

      background-size: 42px 42px;
    }

    .world-label {
      position: absolute;

      top: 18px;
      left: 18px;

      font-family:
        "Courier New",
        monospace;

      font-size: 9px;

      text-transform: uppercase;
    }

    .world-object {
      position: absolute;

      border: 1px solid white;
    }

    .object-a {
      width: 150px;
      height: 150px;

      left: 13%;
      top: 34%;
    }

    .object-b {
      width: 210px;
      height: 100px;

      right: 12%;
      top: 27%;
    }

    .object-c {
      width: 130px;
      height: 190px;

      right: 20%;
      bottom: 13%;
    }

    .world-object::before,
    .world-object::after {
      content: "";

      position: absolute;

      background: white;
    }

    .world-object::before {
      width: 100%;
      height: 1px;

      left: 0;
      top: 50%;
    }

    .world-object::after {
      width: 1px;
      height: 100%;

      top: 0;
      left: 50%;
    }

    .world-target {
      position: absolute;

      width: 48px;
      height: 48px;

      border: 2px solid var(--acid);

      border-radius: 50%;

      left: 49%;
      top: 49%;

      transform: translate(-50%, -50%);
    }

    .world-target::after {
      content: "";

      position: absolute;

      width: 8px;
      height: 8px;

      border-radius: 50%;

      background: var(--acid);

      left: 50%;
      top: 50%;

      transform: translate(-50%, -50%);
    }

    .world-vector {
      position: absolute;

      width: 170px;
      height: 1px;

      background: var(--acid);

      left: 50%;
      top: 50%;

      transform: rotate(-28deg);

      transform-origin: left center;
    }

    .world-data {
      position: absolute;

      bottom: 18px;
      left: 18px;
      right: 18px;

      display: grid;

      grid-template-columns:
        repeat(4, 1fr);

      border-top: 1px solid rgba(255,255,255,0.5);
    }

    .world-data-cell {
      padding-top: 15px;

      font-family:
        "Courier New",
        monospace;

      font-size: 8px;

      text-transform: uppercase;

      color: rgba(255,255,255,0.65);
    }

    .world-data-cell strong {
      display: block;

      margin-top: 7px;

      color: white;

      font-size: 13px;
    }

    /* =========================================================
       CONTROL LOOP
       ========================================================= */

    .control {
      padding: 145px 0;

      border-bottom: 1px solid var(--ink);
    }

    .control-header {
      display: grid;

      grid-template-columns:
        220px
        1fr;

      gap: 70px;

      margin-bottom: 80px;
    }

    .control-header-main {
      display: grid;

      grid-template-columns:
        1fr
        0.65fr;

      gap: 80px;

      align-items: end;
    }

    .control-header-main p {
      font-size: 16px;

      line-height: 1.65;

      color: var(--ink-soft);
    }

    .loop {
      display: grid;

      grid-template-columns:
        repeat(5, 1fr);

      border-top: 1px solid var(--ink);
      border-left: 1px solid var(--ink);
    }

    .loop-step {
      min-height: 260px;

      padding: 22px;

      border-right: 1px solid var(--ink);
      border-bottom: 1px solid var(--ink);

      display: flex;
      flex-direction: column;
      justify-content: space-between;

      position: relative;

      transition:
        background 0.2s ease,
        color 0.2s ease;
    }

    .loop-step:hover {
      background: var(--orange);
    }

    .loop-step-num {
      font-family:
        "Courier New",
        monospace;

      font-size: 9px;
    }

    .loop-step-name {
      font-size: 21px;

      font-weight: 700;

      line-height: 1;

      letter-spacing: -0.04em;

      text-transform: uppercase;
    }

    .loop-step-copy {
      font-size: 12px;

      line-height: 1.5;

      max-width: 180px;
    }

    .loop-step::after {
      content: "→";

      position: absolute;

      right: 18px;
      top: 50%;

      font-size: 25px;

      transform: translateY(-50%);
    }

    .loop-step:last-child::after {
      content: "↺";
    }

    /* =========================================================
       SIMULATION
       ========================================================= */

    .simulation {
      background: var(--ink);

      color: var(--paper);

      border-bottom: 1px solid rgba(255,255,255,0.2);
    }

    .simulation-grid {
      display: grid;

      grid-template-columns:
        1fr
        1fr;

      min-height: 760px;

      border-left: 1px solid rgba(255,255,255,0.2);
      border-right: 1px solid rgba(255,255,255,0.2);
    }

    .simulation-copy {
      padding: 70px 55px;

      border-right: 1px solid rgba(255,255,255,0.2);

      display: flex;
      flex-direction: column;
    }

    .simulation-copy h2 {
      margin-top: 50px;
    }

    .simulation-copy p {
      max-width: 600px;

      margin-top: 40px;

      font-size: 17px;

      line-height: 1.6;

      color: rgba(242,240,233,0.68);
    }

    .simulation-list {
      margin-top: auto;

      border-top: 1px solid rgba(255,255,255,0.25);
    }

    .simulation-list-row {
      min-height: 75px;

      display: grid;

      grid-template-columns:
        50px
        1fr
        auto;

      align-items: center;

      border-bottom: 1px solid rgba(255,255,255,0.25);
    }

    .simulation-list-row:last-child {
      border-bottom: none;
    }

    .simulation-list-num {
      font-family:
        "Courier New",
        monospace;

      font-size: 8px;

      color: rgba(255,255,255,0.4);
    }

    .simulation-list-name {
      font-size: 13px;
    }

    .simulation-list-state {
      font-family:
        "Courier New",
        monospace;

      font-size: 8px;

      color: var(--acid);

      text-transform: uppercase;
    }

    .simulation-visual {
      position: relative;

      overflow: hidden;

      background:
        linear-gradient(
          rgba(255,255,255,0.04) 1px,
          transparent 1px
        ),
        linear-gradient(
          90deg,
          rgba(255,255,255,0.04) 1px,
          transparent 1px
        );

      background-size: 36px 36px;
    }

    .sim-floor {
      position: absolute;

      width: 520px;
      height: 320px;

      left: 50%;
      top: 53%;

      transform:
        translate(-50%, -50%)
        rotateX(60deg)
        rotateZ(-35deg);

      border: 1px solid rgba(255,255,255,0.5);
    }

    .sim-box {
      position: absolute;

      border: 1px solid var(--acid);
    }

    .sim-box.a {
      width: 120px;
      height: 180px;

      left: 25%;
      top: 28%;
    }

    .sim-box.b {
      width: 150px;
      height: 80px;

      right: 17%;
      top: 42%;
    }

    .sim-robot {
      --sim-pointer-x: 0px;
      --sim-pointer-y: 0px;
      --sim-motion-x: 0px;
      --sim-motion-y: 0px;
      --sim-motion-r: 0deg;
      --sim-motion-scale: 1;

      width: 80px;
      height: 130px;

      position: absolute;

      left: 48%;
      top: 44%;

      transform:
        translate(-50%, -50%)
        translate(var(--sim-pointer-x), var(--sim-pointer-y))
        translate(var(--sim-motion-x), var(--sim-motion-y))
        rotate(var(--sim-motion-r))
        scale(var(--sim-motion-scale));

      border: 2px solid var(--blue);

      background: rgba(22,72,255,0.1);
    }

    .sim-robot::before {
      content: "";

      position: absolute;

      width: 44px;
      height: 44px;

      border: 2px solid var(--blue);

      left: 50%;
      top: -55px;

      transform: translateX(-50%);
    }

    .sim-path {
      position: absolute;

      width: 270px;
      height: 170px;

      border: 1px dashed var(--orange);

      border-radius: 50%;

      left: 50%;
      top: 49%;

      transform: translate(-50%, -50%) rotate(-15deg);
    }

    .simulation-visual-label {
      position: absolute;

      top: 20px;
      left: 20px;

      font-family:
        "Courier New",
        monospace;

      font-size: 9px;

      text-transform: uppercase;
    }

    .simulation-runtime {
      position: absolute;

      right: 20px;
      bottom: 20px;

      padding: 12px;

      border: 1px solid rgba(255,255,255,0.25);

      font-family:
        "Courier New",
        monospace;

      font-size: 8px;

      line-height: 1.6;

      text-transform: uppercase;
    }

    /* =========================================================
       FLEET LEARNING
       ========================================================= */

    .fleet {
      padding: 140px 0;

      border-bottom: 1px solid var(--ink);
    }

    .fleet-grid {
      display: grid;

      grid-template-columns:
        0.8fr
        1.2fr;

      gap: 90px;
    }

    .fleet-copy h2 {
      margin-top: 40px;
    }

    .fleet-copy p {
      max-width: 500px;

      margin-top: 35px;

      font-size: 17px;

      line-height: 1.6;

      color: var(--ink-soft);
    }

    .fleet-network {
      border-top: 1px solid var(--ink);
      border-left: 1px solid var(--ink);

      display: grid;

      grid-template-columns:
        repeat(2, 1fr);
    }

    .fleet-node {
      min-height: 240px;

      border-right: 1px solid var(--ink);
      border-bottom: 1px solid var(--ink);

      padding: 22px;

      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .fleet-node.central {
      background: var(--blue);
      color: white;
    }

    .fleet-node-top {
      display: flex;

      justify-content: space-between;

      font-family:
        "Courier New",
        monospace;

      font-size: 8px;

      text-transform: uppercase;
    }

    .fleet-node-name {
      font-size: 22px;

      font-weight: 700;

      text-transform: uppercase;

      letter-spacing: -0.04em;
    }

    .fleet-node-data {
      font-family:
        "Courier New",
        monospace;

      font-size: 9px;

      line-height: 1.5;
    }

    /* =========================================================
       SAFETY
       ========================================================= */

    .safety {
      background: var(--orange);

      padding: 130px 0;

      border-bottom: 1px solid var(--ink);
    }

    .safety-grid {
      display: grid;

      grid-template-columns:
        220px
        1fr;

      gap: 70px;
    }

    .safety-main h2 {
      max-width: 1000px;
    }

    .safety-content {
      margin-top: 65px;

      display: grid;

      grid-template-columns:
        repeat(3, 1fr);

      border-top: 1px solid var(--ink);
      border-left: 1px solid var(--ink);
    }

    .safety-item {
      min-height: 220px;

      padding: 22px;

      border-right: 1px solid var(--ink);
      border-bottom: 1px solid var(--ink);

      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .safety-item-num {
      font-family:
        "Courier New",
        monospace;

      font-size: 8px;
    }

    .safety-item h3 {
      font-size: 18px;

      text-transform: uppercase;

      letter-spacing: -0.03em;
    }

    .safety-item p {
      font-size: 12px;

      line-height: 1.5;
    }

    /* =========================================================
       CTA
       ========================================================= */

    .cta {
      border-bottom: 1px solid var(--ink);
    }

    .cta-grid {
      min-height: 600px;

      display: grid;

      grid-template-columns:
        1.2fr
        0.8fr;

      border-left: 1px solid var(--ink);
      border-right: 1px solid var(--ink);
    }

    .cta-main {
      padding: 80px 55px;

      border-right: 1px solid var(--ink);

      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .cta-main h2 span {
      color: var(--blue);
    }

    .cta-bottom {
      display: grid;

      grid-template-columns:
        1fr
        250px;

      gap: 50px;

      align-items: end;
    }

    .cta-bottom p {
      max-width: 580px;

      font-size: 17px;

      line-height: 1.6;

      color: var(--ink-soft);
    }

    .button {
      min-height: 56px;

      padding-inline: 18px;

      display: flex;
      align-items: center;
      justify-content: space-between;

      border: 1px solid var(--ink);

      font-size: 10px;

      text-transform: uppercase;
      letter-spacing: 0.05em;

      transition:
        background 0.2s ease,
        color 0.2s ease,
        transform 0.2s ease;
    }

    .button:hover {
      transform: translateX(4px);
    }

    .button.blue {
      background: var(--blue);

      border-color: var(--blue);

      color: white;
    }

    .button.blue:hover {
      background: var(--ink);

      border-color: var(--ink);
    }

    .cta-side {
      background: var(--acid);

      padding: 40px;

      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .cta-side-top {
      font-family:
        "Courier New",
        monospace;

      font-size: 9px;

      text-transform: uppercase;
    }

    .cta-side-message {
      font-size: clamp(29px, 4vw, 58px);

      font-weight: 750;

      line-height: 0.93;
      letter-spacing: -0.055em;

      text-transform: uppercase;
    }

    /* =========================================================
       FOOTER
       ========================================================= */

    footer {
      background: var(--ink);

      color: var(--paper);

      padding: 70px 0 25px;
    }

    .footer-grid {
      display: grid;

      grid-template-columns:
        1.4fr
        repeat(3, 1fr);

      gap: 50px;
    }

    .footer-brand p {
      max-width: 350px;

      margin-top: 25px;

      font-size: 13px;
      line-height: 1.6;

      color: rgba(242,240,233,0.55);
    }

    .footer-column h4 {
      margin-bottom: 20px;

      font-family:
        "Courier New",
        monospace;

      font-size: 9px;

      text-transform: uppercase;

      color: rgba(242,240,233,0.4);
    }

    .footer-column a {
      display: block;

      margin-bottom: 12px;

      font-size: 13px;

      color: rgba(242,240,233,0.72);
    }

    .footer-column a:hover {
      color: white;
    }

    .footer-bottom {
      margin-top: 70px;

      padding-top: 22px;

      border-top: 1px solid rgba(255,255,255,0.16);

      display: flex;
      justify-content: space-between;

      gap: 20px;

      font-family:
        "Courier New",
        monospace;

      font-size: 9px;

      color: rgba(242,240,233,0.4);

      text-transform: uppercase;
    }

    /* =========================================================
       REVEAL
       ========================================================= */

    .motion-ready .reveal {
      opacity: 0;

      transform: translateY(25px);

      transition:
        opacity 0.7s ease,
        transform 0.7s ease;
    }

    .motion-ready .reveal.visible {
      opacity: 1;
      transform: translateY(0);
    }

    /* =========================================================
       RESPONSIVE
       ========================================================= */

    @media (min-width: 1151px) {
      .hero .display {
        font-size: clamp(66px, 7.05vw, 116px);
        letter-spacing: -0.065em;
      }
    }

    @media (max-width: 1150px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }

      .hero-copy {
        min-height: 730px;

        border-right: none;

        border-bottom: 1px solid var(--ink);
      }

      .hero-system {
        min-height: 700px;
      }

      .world-grid,
      .fleet-grid {
        grid-template-columns: 1fr;
      }

      .simulation-grid {
        grid-template-columns: 1fr;
      }

      .simulation-copy {
        min-height: 650px;

        border-right: none;

        border-bottom: 1px solid rgba(255,255,255,0.2);
      }

      .simulation-visual {
        min-height: 620px;
      }

      .loop {
        grid-template-columns:
          repeat(3, 1fr);
      }

      .cta-grid {
        grid-template-columns: 1fr;
      }

      .cta-main {
        min-height: 600px;

        border-right: none;

        border-bottom: 1px solid var(--ink);
      }

      .cta-side {
        min-height: 320px;
      }
    }

    @media (max-width: 850px) {
      :root {
        --gutter: 18px;
      }

      .nav-inner {
        min-height: 72px;

        grid-template-columns:
          1fr
          auto;
      }

      .nav-links {
        display: none;
      }

      .hero {
        padding-top: 72px;
      }

      .hero-copy {
        min-height: 680px;

        padding: 50px 24px 30px;
      }

      .hero-bottom {
        grid-template-columns: 1fr;
      }

      .hero-system {
        min-height: 600px;
      }

      .ring-3 {
        width: 430px;
        height: 430px;
      }

      .ring-2 {
        width: 330px;
        height: 330px;
      }

      .principle-grid {
        grid-template-columns: 1fr;
      }

      .principle-cell {
        min-height: 48px;

        border-right: none;

        border-bottom: 1px solid var(--ink);
      }

      .intro-grid,
      .stack-header,
      .control-header,
      .safety-grid {
        grid-template-columns: 1fr;

        gap: 30px;
      }

      .intro-copy {
        grid-template-columns: 1fr;
      }

      .stack-row {
        grid-template-columns: 1fr;
      }

      .stack-row > div {
        border-right: none;

        border-bottom: 1px solid currentColor;
      }

      .stack-row > div:last-child {
        border-bottom: none;
      }

      .stack-state {
        min-height: 100px;

        flex-direction: row;

        align-items: center;
      }

      .control-header-main {
        grid-template-columns: 1fr;
      }

      .loop {
        grid-template-columns: 1fr 1fr;
      }

      .fleet-network {
        grid-template-columns: 1fr;
      }

      .safety-content {
        grid-template-columns: 1fr;
      }

      .cta-main {
        padding: 60px 26px;
      }

      .cta-bottom {
        grid-template-columns: 1fr;
      }

      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }

      .footer-brand {
        grid-column: 1 / -1;
      }
    }

    @media (max-width: 560px) {
      .display {
        font-size: 54px;
      }

      .hero h1.display {
        font-size: 48px;
      }

      .display-medium {
        font-size: 52px;
        letter-spacing: -0.04em;
        overflow-wrap: break-word;
      }

      .cta .display-medium {
        font-size: 46px;
      }

      .hero-top {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
      }

      .hero-system {
        min-height: 540px;
      }

      .sim-floor {
        width: min(360px, calc(100vw - 120px));
        height: 230px;
      }

      .simulation-visual-label {
        right: 18px;
        left: 18px;
      }

      .node {
        min-width: 85px;

        font-size: 7px;
      }

      .ring-3 {
        width: 330px;
        height: 330px;
      }

      .ring-2 {
        width: 260px;
        height: 260px;
      }

      .ring-1 {
        width: 190px;
        height: 190px;
      }

      .neural-center {
        width: 110px;
        height: 110px;
      }

      .loop {
        grid-template-columns: 1fr;
      }

      .world-data {
        grid-template-columns: 1fr 1fr;
      }

      .footer-grid {
        grid-template-columns: 1fr;
      }

      .footer-brand {
        grid-column: auto;
      }

      .footer-bottom {
        flex-direction: column;
      }
    }

    @media (prefers-reduced-motion: reduce) {
      .sim-robot {
        --sim-pointer-x: 0px;
        --sim-pointer-y: 0px;
      }
    }