/* ==========================================================================
   BOLT LABS: Strict 12-Column Swiss Grid + Westworld Hero + Full-Bleed Ocean Footer
   ========================================================================== */

@font-face {
  font-family: "TAR Grid Suisse";
  src: url("fonts/SuisseIntl-Regular.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "TAR Grid Suisse";
  src: url("fonts/SuisseIntl-Medium.woff2") format("woff2");
  font-weight: 500;
  font-display: swap;
}

@font-face {
  font-family: "TAR Grid Suisse";
  src: url("fonts/SuisseIntl-Medium.woff2") format("woff2");
  font-weight: 600;
  font-display: swap;
}

@font-face {
  font-family: "TAR Grid Suisse Fallback";
  src: local("Arial"), local("Liberation Sans"), local("Arimo");
  font-weight: 400;
  size-adjust: 105.5%;
  ascent-override: 111.28%;
  descent-override: 52.7%;
  line-gap-override: 0%;
}

@font-face {
  font-family: "TAR Grid Suisse Fallback";
  src: local("Arial"), local("Liberation Sans"), local("Arimo");
  font-weight: 500;
  size-adjust: 108.59%;
  ascent-override: 108.12%;
  descent-override: 51.2%;
  line-gap-override: 0%;
}

:root {
  --u: 4px;
  --columns: 12;
  --gutter: calc(var(--u) * 6); /* 24px */
  --margin: calc(var(--u) * 8); /* 32px */
  --max: calc(var(--u) * 282);  /* 1128px */
  --measure: min(calc(100vw - var(--margin) * 2), var(--max));
  --col: calc((var(--measure) - (var(--columns) - 1) * var(--gutter)) / var(--columns));

  --bg: #f7f7f7;
  --surface: #ffffff;
  --surface-alt: #efefef;
  --ink: #1b1b1b;
  --ink-secondary: rgba(27, 27, 27, 0.72);
  --muted: #727272;
  --hairline: rgba(27, 27, 27, 0.09);
  --hairline-strong: rgba(27, 27, 27, 0.16);

  --stage-bg: #040507;
  --stage-ink: #f5f5f5;
  --stage-muted: rgba(245, 245, 245, 0.56);
  --stage-border: rgba(255, 255, 255, 0.12);

  --font-sans: "TAR Grid Suisse", "TAR Grid Suisse Fallback", "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-smooth: cubic-bezier(0.22, 1, 0.36, 1);
}

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

[id] {
  scroll-margin-top: calc(var(--u) * 24);
}

::selection {
  background: #0f0f10;
  color: #ff2b2b;
}

::-moz-selection {
  background: #0f0f10;
  color: #ff2b2b;
}

html {
  -webkit-tap-highlight-color: transparent;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  font-feature-settings: "cv02", "cv03", "cv04", "cv11";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: var(--bg);
  color: var(--ink);
  min-height: 100svh;
  overflow-x: clip;
  position: relative;
}

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

button, input {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
}

button {
  cursor: pointer;
  touch-action: manipulation;
  -webkit-user-select: none;
  user-select: none;
}

/* ==========================================================================
   Blur-Reveal System (tar.com RevealGroups)
   ========================================================================== */

@media (scripting: enabled) and (prefers-reduced-motion: no-preference) {
  html[data-reveal-ready] [data-reveal]:not([data-revealed]) [data-reveal-item] {
    opacity: 0;
    filter: blur(8px);
    transform: translateY(8px);
  }

  html[data-reveal-ready] [data-reveal] [data-reveal-item] {
    transition:
      opacity 0.65s var(--ease-smooth),
      filter 0.65s var(--ease-smooth),
      transform 0.65s var(--ease-smooth);
    transition-delay: calc(var(--item-index, 0) * 35ms);
  }

  html[data-reveal-ready] [data-reveal][data-revealed="instant"] [data-reveal-item] {
    transition-duration: 0s !important;
    transition-delay: 0s !important;
  }

  html[data-reveal-ready] [data-reveal][data-revealed] [data-reveal-item] {
    opacity: 1;
    filter: blur(0px);
    transform: translateY(0);
  }
}

/* ==========================================================================
   Right-Click Brand Logo Context Menu (tar.com BrandLogo)
   ========================================================================== */

.logo-context-menu {
  position: fixed;
  z-index: 200;
  min-width: 220px;
  padding: calc(var(--u) * 1.5);
  border-radius: calc(var(--u) * 2.5);
  background: rgba(18, 19, 22, 0.94);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.24), 0 0 0 1px rgba(255, 255, 255, 0.1);
  display: none;
  flex-direction: column;
  gap: 2px;
}

.logo-context-menu.is-open {
  display: flex;
}

.logo-menu-item {
  width: 100%;
  text-align: left;
  padding: calc(var(--u) * 2) calc(var(--u) * 3);
  border-radius: calc(var(--u) * 1.5);
  color: #ffffff;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: -0.01em;
  transition: background-color 0.14s ease;
}

@media (hover: hover) {
  .logo-menu-item:hover {
    background: rgba(255, 255, 255, 0.1);
  }
}

/* ==========================================================================
   Page Wrapper & Fixed Header (tar.com .page & .header)
   ========================================================================== */

.page {
  background: var(--bg);
  color: var(--ink);
  padding-bottom: 0;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 40;
  padding: calc(var(--u) * 5) 0;
  background: color-mix(in srgb, var(--bg) calc(var(--fade, 1) * 86%), transparent);
  backdrop-filter: blur(calc(var(--fade, 1) * 14px));
  -webkit-backdrop-filter: blur(calc(var(--fade, 1) * 14px));
  opacity: var(--fade, 1);
  transform: translateY(calc((1 - var(--fade, 1)) * -8px));
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.site-header.is-interactive {
  pointer-events: auto;
}

.header-inner {
  width: var(--measure);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(var(--columns), minmax(0, 1fr));
  column-gap: var(--gutter);
  align-items: center;
}

.brand-logo {
  grid-column: 1 / span 3;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  width: fit-content;
}

.bolt-nut-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  display: block;
}

.brand-mark {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  line-height: 1;
  color: var(--ink);
}

.header-nav {
  grid-column: 5 / -1;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: calc(var(--u) * 6);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--muted);
}

@media (hover: hover) {
  .header-nav a:hover {
    color: var(--ink);
  }
}

.header-cta-btn {
  background: var(--ink);
  color: #ffffff !important;
  border-radius: 14px;
  padding: 6px 13px;
  font-size: 13px;
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: -0.01em;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.15s ease;
}

@media (hover: hover) {
  .header-cta-btn:hover {
    opacity: 0.86;
  }
}

/* ==========================================================================
   1. Pinned Scroll-Morphing Westworld Landing Stage (tar.com .landing)
   ========================================================================== */

.landing {
  --pin-vh: min(100svh, 960px);
  --hero-h: calc(var(--measure) * 9 / 16);
  --hero-bottom: calc(var(--u) * 18 + var(--hero-h));
  --pin: max(var(--pin-vh), var(--hero-bottom));
  --travel: calc(var(--pin-vh) * 3.4);
  height: calc(var(--pin) + var(--travel));
  margin-bottom: calc(var(--hero-bottom) - var(--pin));
  position: relative;
}

.landing-pin {
  position: sticky;
  top: 0;
  height: var(--pin);
  overflow: hidden;
}

.landing-stage {
  position: absolute;
  top: calc(var(--e) * var(--u) * 18);
  left: calc(var(--e) * (100% - var(--measure)) / 2);
  width: calc(100% - var(--e) * (100% - var(--measure)));
  height: calc(var(--pin-vh) + var(--e) * (var(--hero-h) - var(--pin-vh)));
  border-radius: calc(var(--e) * var(--u) * 2);
  overflow: hidden;
  background: var(--stage-bg);
  box-shadow: 0 24px 60px rgba(0, 0, 0, calc(var(--e) * 0.14));
  will-change: top, left, width, height, border-radius;
}

.stage-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  cursor: grab;
}

.stage-canvas:active {
  cursor: grabbing;
}

.stage-scrim {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(4, 5, 7, 0.68) 0%, rgba(4, 5, 7, 0.12) 24%, rgba(4, 5, 7, 0.08) 76%, rgba(4, 5, 7, 0.55) 100%);
  pointer-events: none;
}

/* Cover Overlay on Landing Stage */
.landing-cover {
  z-index: 3;
  width: var(--measure);
  margin: 0 auto;
  padding-top: calc(var(--u) * 6);
  display: grid;
  grid-template-columns: repeat(var(--columns), minmax(0, 1fr));
  column-gap: var(--gutter);
  row-gap: calc(var(--u) * 28);
  align-items: start;
  color: #ffffff;
  opacity: calc(1 - var(--fade));
  transform: translateY(calc(var(--fade) * var(--u) * -2));
  pointer-events: none;
  position: relative;
}

.cover-logo {
  grid-column: 1 / span 4;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  line-height: 1;
  color: #ffffff;
}

.cover-logo .bolt-nut-icon {
  width: 17px;
  height: 17px;
}

.cover-headline {
  grid-column: 1 / span 6;
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: clamp(30px, 2.9vw, 40px);
  font-weight: 500;
  line-height: 1.06;
  letter-spacing: -0.045em;
  color: #ffffff;
}

.cover-headline span:last-child {
  color: rgba(255, 255, 255, 0.58);
}

/* ==========================================================================
   2. Two-Column Thesis & Credentials Section
   ========================================================================== */

.intro {
  width: var(--measure);
  margin: calc(var(--u) * 18) auto 0;
  display: grid;
  grid-template-columns: repeat(var(--columns), minmax(0, 1fr));
  column-gap: var(--gutter);
  align-items: start;
}

.intro-headline {
  grid-column: 1 / span 4;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 40px;
  font-weight: 500;
  line-height: 1.0;
  letter-spacing: -0.05em;
  color: var(--ink);
}

.intro-line {
  display: block;
}

.intro-line .word {
  display: inline-block;
  margin-right: 0.18em;
}

.intro-col-first {
  grid-column: 5 / span 4;
  display: flex;
  flex-direction: column;
  gap: calc(var(--u) * 5);
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.intro-col-second {
  grid-column: 9 / span 4;
  display: flex;
  flex-direction: column;
  gap: calc(var(--u) * 5);
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: -0.02em;
  color: var(--ink);
}

/* ==========================================================================
   3. Option 3 Architectural CAD Blueprint (dualite.dev + tar.com .system)
   ========================================================================== */

.system {
  width: var(--measure);
  margin: calc(var(--u) * 18) auto 0;
}

.cad-frame {
  position: relative;
  border: 1px solid var(--hairline-strong);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.55) 0%, rgba(247, 247, 247, 0.25) 100%);
  padding: calc(var(--u) * 4) 0;
}

.cad-corner {
  position: absolute;
  width: 8px;
  height: 8px;
  border-color: var(--ink);
  opacity: 0.45;
  pointer-events: none;
}

.cad-tl { top: -1px; left: -1px; border-top: 1.5px solid; border-left: 1.5px solid; }
.cad-tr { top: -1px; right: -1px; border-top: 1.5px solid; border-right: 1.5px solid; }
.cad-bl { bottom: -1px; left: -1px; border-bottom: 1.5px solid; border-left: 1.5px solid; }
.cad-br { bottom: -1px; right: -1px; border-bottom: 1.5px solid; border-right: 1.5px solid; }

.system-svg {
  display: block;
  width: 100%;
  height: auto;
  color: var(--ink);
  overflow: visible;
}

.system-labels {
  margin-top: calc(var(--u) * 3);
  display: grid;
  grid-template-columns: repeat(var(--columns), minmax(0, 1fr));
  column-gap: var(--gutter);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.35;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--muted);
}

.sys-label-1 { grid-column: 1 / span 4; }
.sys-label-2 { grid-column: 5 / span 4; }
.sys-label-3 { grid-column: 9 / span 4; }

/* ==========================================================================
   Shared Left Sticky Section Headings & Digit Reels (tar.com pattern)
   ========================================================================== */

.section-left {
  grid-column: 1 / span 4;
}

.sticky-heading-wrap {
  position: sticky;
  top: calc(var(--u) * 16);
  display: flex;
  align-items: baseline;
  gap: calc(var(--u) * 2.5);
}

.section-heading {
  position: sticky;
  top: calc(var(--u) * 16);
  font-size: 20px;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.04em;
  color: var(--ink);
}

.sticky-heading-wrap .section-heading {
  position: static;
}

.reel {
  display: inline-block;
  height: 1.2em;
  overflow: hidden;
  vertical-align: baseline;
  font-size: 20px;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.04em;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.reel-track {
  display: flex;
  flex-direction: column;
}

/* ==========================================================================
   4. Clinical & AI Leadership Section
   ========================================================================== */

.leadership-section {
  width: var(--measure);
  margin: calc(var(--u) * 20) auto 0;
  padding-top: calc(var(--u) * 10);
  border-top: 1px solid var(--hairline);
  display: grid;
  grid-template-columns: repeat(var(--columns), minmax(0, 1fr));
  column-gap: var(--gutter);
  align-items: start;
}

.leadership-grid {
  grid-column: 5 / -1;
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  column-gap: var(--gutter);
  row-gap: calc(var(--u) * 7);
}

.leader-item:nth-child(odd) {
  grid-column: 1 / span 4;
}

.leader-item:nth-child(even) {
  grid-column: 5 / span 4;
}

.leader-name {
  font-size: 16px;
  font-weight: 500;
  line-height: 1.35;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.leader-title {
  margin-top: 2px;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: -0.015em;
  color: var(--ink-secondary);
}

.leader-role {
  margin-top: 4px;
  font-size: 14px;
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--muted);
}

/* ==========================================================================
   5–7. Single-Column Sections (Mapping & RL, Data Pillars, Benchmarks)
   ========================================================================== */

.single-col-section {
  width: var(--measure);
  margin: calc(var(--u) * 20) auto 0;
  padding-top: calc(var(--u) * 10);
  border-top: 1px solid var(--hairline);
  display: grid;
  grid-template-columns: repeat(var(--columns), minmax(0, 1fr));
  column-gap: var(--gutter);
  align-items: start;
}

/* Strictly 1 column in the main reading flow (Image #4, #5) */
.single-col-body {
  grid-column: 5 / span 7;
  display: flex;
  flex-direction: column;
  gap: calc(var(--u) * 5);
}

.single-col-lead {
  font-size: 18px;
  font-weight: 500;
  line-height: 1.45;
  letter-spacing: -0.025em;
  color: var(--ink);
}

.single-col-copy {
  font-size: 15px;
  line-height: 1.55;
  letter-spacing: -0.015em;
  color: var(--muted);
}

/* Interactive Clinical Trace Workbench (Single-Column Stacked) */
.trace-workbench {
  margin-top: calc(var(--u) * 2);
  border-radius: calc(var(--u) * 2);
  background: #0b0c0f;
  color: #f5f5f5;
  border: 1px solid rgba(255, 255, 255, 0.1);
  overflow: hidden;
}

.workbench-tabs {
  display: flex;
  flex-wrap: wrap;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.02);
}

.wb-tab {
  padding: calc(var(--u) * 3) calc(var(--u) * 4);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: rgba(245, 245, 245, 0.48);
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  transition: color 0.15s ease, background-color 0.15s ease;
}

.wb-tab.is-active {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.06);
}

.workbench-grid {
  display: flex;
  flex-direction: column;
}

.wb-pane {
  padding: calc(var(--u) * 5);
  display: flex;
  flex-direction: column;
  gap: calc(var(--u) * 3.5);
}

.wb-pane-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.wb-pane-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
}

.wb-pane-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: rgba(245, 245, 245, 0.52);
  letter-spacing: 0.04em;
}

.wb-status-pill {
  font-family: var(--font-mono);
  font-size: 11px;
  color: rgba(245, 245, 245, 0.88);
}

.wb-hex {
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.7;
  color: rgba(245, 245, 245, 0.78);
  overflow-x: auto;
  white-space: pre;
}

.wb-steps {
  display: flex;
  flex-direction: column;
  gap: calc(var(--u) * 2);
}

.wb-step {
  display: grid;
  grid-template-columns: 52px 1fr auto;
  gap: calc(var(--u) * 3);
  align-items: baseline;
  padding: calc(var(--u) * 2) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 13px;
}

.wb-step:last-child {
  border-bottom: none;
}

.wb-step-idx {
  font-family: var(--font-mono);
  font-size: 11px;
  color: rgba(245, 245, 245, 0.48);
}

.wb-step-text {
  color: rgba(245, 245, 245, 0.88);
  line-height: 1.4;
}

.wb-step-score {
  font-family: var(--font-mono);
  font-size: 12px;
  color: #ffffff;
}

.wb-footer-bar {
  padding-top: calc(var(--u) * 2.5);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: rgba(245, 245, 245, 0.52);
}

.wb-reward {
  color: #ffffff;
  font-weight: 500;
}

/* Compact Single-Column Rows for Data Pillars & Benchmarks */
.compact-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--hairline);
}

.compact-row {
  padding: calc(var(--u) * 4.5) 0;
  border-bottom: 1px solid var(--hairline);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.compact-row-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.compact-title {
  font-size: 16px;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.compact-meta {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.compact-desc {
  font-size: 14px;
  line-height: 1.5;
  letter-spacing: -0.01em;
  color: var(--muted);
}

/* ==========================================================================
   7. Closing CTA Section (bluefyn.ai pattern — Image #49)
   ========================================================================== */

.closing-cta-section {
  position: relative;
  margin-top: calc(var(--u) * 24);
  width: 100%;
  background: #050507;
  color: #f5f5f5;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.iris-cta-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  z-index: 1;
}

.closing-cta-inner {
  position: relative;
  z-index: 2;
  width: var(--measure);
  margin: 0 auto;
  min-height: min(74svh, 620px);
  padding: calc(var(--u) * 28) 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.closing-cta-heading {
  max-width: 760px;
  font-size: 20px;
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: #ffffff;
}

.closing-cta-note {
  margin-top: 4px;
  max-width: 640px;
  font-size: 20px;
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: rgba(245, 245, 245, 0.45);
  text-wrap: balance;
}

.closing-cta-btn {
  margin-top: 24px;
  background: #f5f5f5;
  color: #111111;
  border-radius: 14px;
  padding: 7px 14px;
  font-size: 13px;
  font-weight: 500;
  line-height: 1.45;
  letter-spacing: -0.01em;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.15s ease, transform 0.15s ease;
}

@media (hover: hover) {
  .closing-cta-btn:hover {
    background: #ffffff;
  }
}

/* ==========================================================================
   8. Full-Bleed vgpu Particles Ocean Footer (Image #6, #7, #9)
   ========================================================================== */

.ocean-footer {
  position: relative;
  width: 100%;
  min-height: 720px;
  background: #020305;
  color: #f5f5f5;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.ocean-footer-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  z-index: 1;
}

/* Subtle top gradient so the footer navigation reads with razor contrast while the
   rolling 262,144-particle ocean fills the entire lower horizon from edge to edge */
.ocean-footer-scrim {
  position: absolute;
  inset: 0;
  z-index: 2;
  background:
    linear-gradient(180deg, rgba(2, 3, 5, 0.88) 0%, rgba(2, 3, 5, 0.52) 42%, rgba(2, 3, 5, 0.08) 76%, rgba(2, 3, 5, 0.45) 100%);
  pointer-events: none;
}

.ocean-footer-inner {
  position: relative;
  z-index: 3;
  width: var(--measure);
  min-height: 720px;
  margin: 0 auto;
  padding: calc(var(--u) * 16) 0 calc(var(--u) * 10);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  pointer-events: none;
}

.ocean-footer-top,
.ocean-footer-bottom {
  pointer-events: auto;
}

.ocean-footer-top {
  display: grid;
  grid-template-columns: repeat(var(--columns), minmax(0, 1fr));
  column-gap: var(--gutter);
  row-gap: calc(var(--u) * 8);
  align-items: start;
}

.footer-brand-col {
  grid-column: 1 / span 3;
  display: flex;
  flex-direction: column;
  gap: calc(var(--u) * 3.5);
}

.footer-brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  line-height: 1;
  color: #ffffff;
}

.footer-brand-mark .bolt-nut-icon {
  width: 17px;
  height: 17px;
}

.footer-brand-copy {
  font-size: 14px;
  line-height: 1.5;
  color: rgba(245, 245, 245, 0.64);
  max-width: 34ch;
}

.footer-cta-link {
  font-family: var(--font-mono);
  font-size: 12px;
  color: #ffffff;
  opacity: 0.88;
}

.footer-nav-col {
  grid-column: span 2;
  display: flex;
  flex-direction: column;
  gap: calc(var(--u) * 2.5);
  font-size: 14px;
  color: rgba(245, 245, 245, 0.68);
}

.footer-col-title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(245, 245, 245, 0.42);
  margin-bottom: 4px;
}

@media (hover: hover) {
  .footer-nav-col a:hover,
  .footer-cta-link:hover {
    color: #ffffff;
  }
}

.footer-Subscribe-col {
  grid-column: 10 / span 3;
  display: flex;
  flex-direction: column;
  gap: calc(var(--u) * 3);
}

.footer-sub-copy {
  font-size: 13px;
  line-height: 1.45;
  color: rgba(245, 245, 245, 0.62);
}

.footer-form {
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.28);
  padding-bottom: 8px;
}

.footer-input {
  flex: 1;
  font-size: 14px;
  color: #ffffff;
  outline: none;
}

.footer-input::placeholder {
  color: rgba(245, 245, 245, 0.42);
}

.footer-submit {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #ffffff;
  color: #050608;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
}

.ocean-footer-bottom {
  padding-top: calc(var(--u) * 6);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: rgba(245, 245, 245, 0.56);
}

.footer-meta-left {
  display: flex;
  align-items: center;
  gap: calc(var(--u) * 5);
}

.footer-dateline {
  display: flex;
  align-items: center;
  gap: calc(var(--u) * 5);
  font-variant-numeric: tabular-nums;
}

.footer-dateline strong {
  color: #ffffff;
  font-weight: 500;
}

/* ==========================================================================
   Responsive Breakpoints (Mobile-Native 4-Column Grid)
   ========================================================================== */

@media (max-width: 1024px) {
  :root {
    --margin: calc(var(--u) * 6);
    --gutter: calc(var(--u) * 4);
  }

  .intro-headline {
    grid-column: 1 / -1;
    margin-bottom: calc(var(--u) * 6);
  }

  .intro-col-first {
    grid-column: 1 / span 6;
  }

  .intro-col-second {
    grid-column: 7 / span 6;
  }

  .section-left {
    grid-column: 1 / -1;
    margin-bottom: calc(var(--u) * 5);
  }

  .leadership-grid,
  .single-col-body {
    grid-column: 1 / -1;
  }
}

@media (max-width: 720px) {
  :root {
    --columns: 4;
    --margin: calc(var(--u) * 5);
    --gutter: calc(var(--u) * 4);
  }

  .brand-logo {
    grid-column: 1 / span 2;
  }

  .header-nav {
    grid-column: 3 / -1;
    gap: calc(var(--u) * 3);
  }

  .header-nav a:not(.header-cta-btn) {
    display: none;
  }

  .landing {
    --hero-h: calc(var(--measure) * 1.05);
  }

  .cover-logo,
  .cover-headline,
  .intro-col-first,
  .intro-col-second,
  .sys-label-1,
  .sys-label-2,
  .sys-label-3,
  .leader-item:nth-child(odd),
  .leader-item:nth-child(even),
  .footer-brand-col,
  .footer-nav-col,
  .footer-Subscribe-col {
    grid-column: 1 / -1;
  }

  .landing-cover {
    padding-top: calc(var(--u) * 5);
    row-gap: calc(var(--u) * 6);
  }

  .cover-headline {
    font-size: clamp(24px, 6.8vw, 30px);
    line-height: 1.08;
  }

  .intro {
    margin-top: calc(var(--u) * 12);
    row-gap: calc(var(--u) * 5);
  }

  .intro-headline {
    font-size: 32px;
    margin-bottom: calc(var(--u) * 2);
  }

  .system-labels {
    row-gap: calc(var(--u) * 2.5);
  }

  .closing-cta-inner {
    min-height: 52svh;
    padding: calc(var(--u) * 20) 0;
  }

  .closing-cta-heading,
  .closing-cta-note {
    font-size: 18px;
  }
}