:root {
  --arc-black: #050403;
  --arc-panel: rgba(12, 13, 15, 0.78);
  --arc-panel-strong: rgba(8, 9, 11, 0.92);
  --arc-line: rgba(255, 255, 255, 0.10);
  --arc-line-strong: rgba(255, 255, 255, 0.24);
  --arc-text: rgba(255, 255, 255, 0.94);
  --arc-muted: rgba(255, 255, 255, 0.64);
  --arc-dim: rgba(255, 255, 255, 0.38);
  --arc-white: #ffffff;
  --arc-shadow: rgba(0, 0, 0, 0.42);
  --max: 1200px;
  --gutter: clamp(20px, 4vw, 56px);
  --radius: 3px;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  min-width: 320px;
  margin: 0;
  background: var(--arc-black);
  color: var(--arc-text);
  font-family: "DM Sans", system-ui, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Faint technical grid behind everything */
body::before {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  content: "";
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 88px 88px;
  opacity: 0.16;
}

body::after {
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  content: "";
  background:
    linear-gradient(
      180deg,
      rgba(5, 4, 3, 0.18) 0%,
      rgba(5, 4, 3, 0.08) 34%,
      rgba(5, 4, 3, 0.46) 82%,
      rgba(5, 4, 3, 0.72) 100%
    ),
    linear-gradient(
      90deg,
      rgba(5, 4, 3, 0.40) 0%,
      rgba(5, 4, 3, 0.08) 48%,
      rgba(5, 4, 3, 0.44) 100%
    );
}

main,
.footer {
  position: relative;
  z-index: 4;
}

.site-backdrop {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}
.site-backdrop img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  filter: saturate(1) contrast(1.02) brightness(0.98);
  transform: scale(1.01);
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
h1, h2, h3, p { margin-top: 0; }

h1, h2, h3, .nav-cta, .btn, .brand-name, .status-line, .section-marker,
.focus-no, .meta-list dt, .footer-brand, .footer-tag {
  font-family: "Michroma", system-ui, Arial, sans-serif;
  font-weight: 400;
}

:focus-visible {
  outline: 2px solid var(--arc-white);
  outline-offset: 3px;
  border-radius: var(--radius);
}

.skip-link {
  position: fixed;
  top: -60px;
  left: 16px;
  z-index: 200;
  padding: 10px 16px;
  border-radius: var(--radius);
  background: var(--arc-white);
  color: var(--arc-black);
  font-family: "Michroma", system-ui, Arial, sans-serif;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: top 0.2s ease;
}
.skip-link:focus { top: 16px; }

/* ──────── NAV ──────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px var(--gutter);
  background: transparent;
  transition: background 0.25s ease, border-color 0.25s ease,
    backdrop-filter 0.25s ease;
}
.nav.is-scrolled {
  background: rgba(5, 4, 3, 0.55);
  border-bottom: 1px solid var(--arc-line);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
}

.brand {
  display: inline-flex;
  gap: 11px;
  align-items: center;
  font-family: "Michroma", system-ui, Arial, sans-serif;
  font-size: 13px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--arc-text);
}
.brand-emblem {
  width: auto;
  height: 32px;
  display: block;
}
.brand-wordmark {
  width: auto;
  height: 15px;
  display: block;
  opacity: 0.96;
}

.nav-links {
  display: inline-flex;
  gap: 28px;
  align-items: center;
  margin: 0;
  padding: 0;
  list-style: none;
}
.nav-links a {
  font-family: "DM Sans", system-ui, Arial, sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.20em;
  text-transform: uppercase;
  color: var(--arc-muted);
  transition: color 0.2s ease;
  padding: 6px 2px;
  position: relative;
}
.nav-links a:hover,
.nav-links a.is-active { color: var(--arc-text); }

.nav-cta {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 18px;
  border: 1px solid var(--arc-line-strong);
  border-radius: var(--radius);
  font-family: "DM Sans", system-ui, Arial, sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--arc-text);
  background: rgba(255, 255, 255, 0.05);
  transition: background 0.2s ease, border-color 0.2s ease;
}
.nav-cta:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.5);
}

/* ──────── HERO ──────── */
.hero {
  position: relative;
  display: grid;
  align-items: end;
  min-height: 100svh;
  padding: 110px var(--gutter) clamp(48px, 8vw, 96px);
}
.hero-overlay {
  position: relative;
  z-index: 4;
  width: min(720px, 100%);
  margin: 0;
  text-align: left;
}

.status-line {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 26px;
  font-family: "Michroma", system-ui, Arial, sans-serif;
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--arc-dim);
}
.status-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--arc-white);
  box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.10),
    0 0 14px rgba(255, 255, 255, 0.45);
  animation: pulse 2.6s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.45; transform: scale(0.72); }
}
@media (prefers-reduced-motion: reduce) {
  .status-dot { animation: none; }
}

.hero-title {
  margin: 0 0 26px;
  font-family: "Michroma", system-ui, Arial, sans-serif;
  font-size: clamp(4rem, 14vw, 10.5rem);
  font-weight: 400;
  line-height: 0.9;
  letter-spacing: 0.08em;
  text-shadow: 0 12px 36px rgba(0, 0, 0, 0.42);
}

.hero-copy {
  width: min(560px, 100%);
  margin: 0 0 36px;
  color: rgba(255, 255, 255, 0.78);
  font-family: "DM Sans", system-ui, Arial, sans-serif;
  font-size: clamp(0.98rem, 1.4vw, 1.12rem);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.btn {
  position: relative;
  isolation: isolate;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  overflow: hidden;
  padding: 0 34px;
  border: 1px solid var(--arc-line-strong);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.04);
  color: var(--arc-text);
  font-family: "DM Sans", system-ui, Arial, sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  line-height: 1;
  transition: transform 0.2s ease, border-color 0.2s ease,
    background 0.2s ease, color 0.2s ease, opacity 0.2s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.11);
  color: var(--arc-white);
}
.btn-primary::after {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  background: linear-gradient(115deg, transparent 30%, rgba(255, 255, 255, 0.50) 50%, transparent 70%);
  transform: translateX(-150%);
  transition: transform 0.85s cubic-bezier(0.22, 1, 0.36, 1);
}
.btn-primary:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.34);
}
.btn-primary:hover::after {
  transform: translateX(150%);
}
.btn-secondary {
  border: 1px solid var(--arc-line-strong);
  background: rgba(5, 4, 3, 0.20);
  color: var(--arc-text);
}
.btn-secondary:hover {
  border-color: rgba(255, 255, 255, 0.55);
  background: rgba(255, 255, 255, 0.10);
}
.btn-full { width: 100%; }

.hero-scroll {
  position: absolute;
  z-index: 4;
  right: var(--gutter);
  bottom: clamp(28px, 5vw, 56px);
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: "Michroma", system-ui, Arial, sans-serif;
  font-size: 9px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--arc-dim);
}
.scroll-line {
  display: inline-block;
  width: 56px;
  height: 1px;
  background: linear-gradient(90deg, var(--arc-dim), transparent);
}

/* ──────── SECTIONS ──────── */
.section {
  width: min(calc(100% - var(--gutter) * 2), var(--max));
  min-height: 88svh;
  margin: 0 auto;
  padding: clamp(80px, 12vw, 140px) 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.section-marker {
  display: inline-flex;
  align-items: center;
  margin-bottom: 28px;
  font-family: "Michroma", system-ui, Arial, sans-serif;
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--arc-dim);
  border-top: 1px solid var(--arc-line);
  padding-top: 24px;
  width: 100%;
}

.section-title {
  margin: 0;
  font-size: clamp(2rem, 4.4vw, 3.6rem);
  line-height: 1.06;
  letter-spacing: 0.01em;
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.95fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: start;
  margin-bottom: clamp(36px, 6vw, 64px);
}

.section-lead {
  margin: 0;
  color: var(--arc-muted);
  font-size: 1rem;
  line-height: 1.7;
}

/* MISSION */
.section-mission {
  text-align: left;
}
.section-mission .section-marker {
  margin-bottom: 36px;
}
.anchor-title {
  max-width: 980px;
  margin: 0 0 44px;
  font-size: clamp(2.6rem, 7vw, 5.6rem);
  line-height: 1.02;
  letter-spacing: 0.005em;
}
.mission-body {
  width: min(920px, 100%);
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}
.mission-body p {
  margin: 0;
  color: var(--arc-muted);
  font-size: clamp(1rem, 1.4vw, 1.12rem);
  line-height: 1.78;
}

/* INITIATIVE */
.initiative-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: clamp(24px, 5vw, 72px);
  flex-wrap: wrap;
  padding: clamp(30px, 5vw, 58px);
  border: 1px solid var(--arc-line);
  border-radius: var(--radius);
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.015)),
    var(--arc-panel);
  box-shadow: 0 36px 90px rgba(0, 0, 0, 0.42);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.initiative-text {
  display: grid;
  gap: 12px;
  max-width: 640px;
}
.product-name {
  margin: 0;
  font-size: clamp(2rem, 5vw, 4.2rem);
  line-height: 0.98;
  letter-spacing: 0.04em;
}
.product-copy {
  margin: 0;
  color: var(--arc-muted);
  font-size: 1rem;
  line-height: 1.7;
}
.initiative-card .btn { flex-shrink: 0; }

/* FOCUS */
.focus-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}
.focus-grid article {
  display: grid;
  align-content: start;
  gap: 18px;
  min-height: 260px;
  padding: clamp(20px, 2.4vw, 28px);
  border: 1px solid var(--arc-line);
  border-radius: var(--radius);
  background: var(--arc-panel-strong);
  transition: border-color 0.25s ease, transform 0.25s ease,
    background 0.25s ease;
}
.focus-grid article:hover {
  border-color: var(--arc-line-strong);
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.04);
}
.focus-no {
  display: inline-block;
  font-family: "Michroma", system-ui, Arial, sans-serif;
  font-size: 0.76rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--arc-dim);
}
.focus-grid h3 {
  margin: 0;
  font-size: clamp(0.92rem, 1.05vw, 1.04rem);
  line-height: 1.35;
  letter-spacing: 0.01em;
}
.focus-grid p {
  margin: 0;
  color: var(--arc-muted);
  font-family: "DM Sans", system-ui, Arial, sans-serif;
  font-size: 0.92rem;
  line-height: 1.62;
}

/* CLOSING */
.section-closing {
  text-align: left;
  padding-bottom: clamp(120px, 14vw, 200px);
}
.section-closing .section-marker {
  margin-bottom: 38px;
}
.closing-title {
  max-width: 880px;
  margin: 0 0 22px;
  font-size: clamp(2.4rem, 6vw, 4.6rem);
  line-height: 1.04;
  letter-spacing: 0.01em;
}
.closing-lead {
  margin: 0 0 36px;
  width: min(540px, 100%);
  color: var(--arc-muted);
  font-size: clamp(1rem, 1.4vw, 1.12rem);
  line-height: 1.7;
}
.section-closing .hero-actions { justify-content: flex-start; }

/* ──────── FOOTER ──────── */
.footer {
  width: min(calc(100% - var(--gutter) * 2), var(--max));
  margin: 0 auto;
  padding: 36px 0 60px;
  border-top: 1px solid var(--arc-line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
}
.footer-row {
  display: inline-flex;
  align-items: baseline;
  gap: 18px;
  flex-wrap: wrap;
}
.footer-brand {
  font-family: "Michroma", system-ui, Arial, sans-serif;
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--arc-text);
}
.footer-tag {
  font-family: "DM Sans", system-ui, Arial, sans-serif;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--arc-dim);
}
.footer-link {
  color: var(--arc-muted);
  font-family: "DM Sans", system-ui, Arial, sans-serif;
  font-size: 11px;
  letter-spacing: 0.10em;
  text-transform: uppercase;
}
.footer-link:hover { color: var(--arc-text); }

/* ──────── RESPONSIVE ──────── */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .section-head { grid-template-columns: 1fr; gap: 18px; }
  .section { min-height: auto; padding: clamp(72px, 12vw, 112px) 0; }
  .mission-body { grid-template-columns: 1fr; width: min(700px, 100%); }
  .focus-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero-scroll { display: none; }
}

@media (max-width: 600px) {
  .nav {
    padding: 14px 18px;
  }
  .brand-name { font-size: 11px; letter-spacing: 0.18em; }
  .nav-cta { font-size: 10px; padding: 0 12px; min-height: 36px; }
  .hero { padding-top: 96px; padding-bottom: 72px; }
  .hero-overlay { width: 100%; }
  .site-backdrop img {
    object-position: center center;
    transform: scale(1.02);
  }
  .hero-title {
    font-size: clamp(2.6rem, 15vw, 4.4rem);
    letter-spacing: 0.05em;
  }
  .hero-copy { font-size: 0.98rem; }
  .btn { width: 100%; max-width: 320px; }
  .anchor-title { font-size: 2.4rem; }
  .section { padding: 72px 0; }
  .section-title { font-size: 1.8rem; }
  .closing-title { font-size: 2.2rem; }
  .focus-grid { grid-template-columns: 1fr; }
  .footer { flex-direction: column; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}