/* =========================================================
   MERIVO Systems — Deep Tech Landing
   Aesthetic: Industrial precision · technical drawings ·
   monospace annotations · refined typographic contrast.
   ========================================================= */

:root {
  --bg: #050b16;
  --bg-2: #08111f;
  --bg-3: #0d1828;
  --surface: rgba(255, 255, 255, 0.02);
  --surface-2: rgba(255, 255, 255, 0.04);
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.16);
  --ink: #f4f6fa;
  --ink-2: #c5cdd9;
  --ink-3: #8892a3;
  --ink-4: #5a6478;

  --accent: #1F6BFF;
  --accent-2: #4d8aff;
  --accent-glow: rgba(31, 107, 255, 0.35);
  --accent-soft: rgba(31, 107, 255, 0.08);

  --navy-deep: #0a1628;

  --font-sans: 'Inter', system-ui, sans-serif;
  --font-display: 'Space Grotesk', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', monospace;

  --maxw: 1320px;
  --pad-x: clamp(24px, 5vw, 80px);
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  position: relative;
}

img {
  max-width: 100%;
  display: block;
}

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

button {
  font: inherit;
  cursor: pointer;
}

/* ====== Atmospheric overlays ====== */
.grid-overlay {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 80px 80px;
  pointer-events: none;
  z-index: 1;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}

.noise-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 2;
  opacity: 0.4;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/></filter><rect width='200' height='200' filter='url(%23n)' opacity='0.6'/></svg>");
}

/* ====== Mono label helper ====== */
.mono {
  font-family: var(--font-mono);
  font-weight: 400;
  letter-spacing: 0.04em;
  font-size: 0.72rem;
  text-transform: uppercase;
}

/* ====== Buttons ====== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid transparent;
  transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
  position: relative;
}

.btn--primary {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

.btn--primary:hover {
  background: var(--accent-2);
  box-shadow: 0 0 40px var(--accent-glow);
  transform: translateY(-1px);
}

.btn--ghost {
  border-color: var(--line-strong);
  color: var(--ink);
}

.btn--ghost:hover {
  border-color: var(--accent);
  color: var(--accent-2);
  background: var(--accent-soft);
}

.btn--lg {
  padding: 20px 36px;
  font-size: 0.85rem;
}

/* =========================================================
   NAV
   ========================================================= */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 20px var(--pad-x);
  background: linear-gradient(to bottom, rgba(5, 11, 22, 0.9), rgba(5, 11, 22, 0.4));
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.nav__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.nav__logo {
  height: 48px;
  width: auto;
  filter: invert(1) hue-rotate(180deg) brightness(1.1);
  mix-blend-mode: lighten;
}

.nav__links {
  display: flex;
  gap: 36px;
}

.nav__links a {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--ink-2);
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  position: relative;
  padding: 4px 0;
  transition: color 0.2s;
}

.nav__links a:hover {
  color: var(--accent-2);
}

.nav__links a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 0.3s ease;
}

.nav__links a:hover::after {
  width: 100%;
}

.nav__num {
  font-size: 0.6rem;
  color: var(--ink-4);
}

.nav__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink);
  padding: 10px 18px;
  border: 1px solid var(--line-strong);
  transition: all 0.2s;
}

.nav__cta:hover {
  border-color: var(--accent);
  color: var(--accent-2);
  background: var(--accent-soft);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.lang-btn {
  text-decoration: none;
  transition: transform 0.2s;
  display: flex;
  align-items: center;
  cursor: pointer;
  opacity: 0.8;
}

.lang-btn:hover {
  transform: scale(1.1);
  opacity: 1;
}

/* =========================================================
   HERO
   ========================================================= */
.hero {
  position: relative;
  min-height: 100vh;
  padding: 140px var(--pad-x) 80px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  z-index: 3;
}

.hero__bg {
  position: absolute;
  top: 50%;
  right: -10%;
  transform: translateY(-50%);
  width: 80vw;
  max-width: 900px;
  aspect-ratio: 1;
  z-index: 0;
  opacity: 0.9;
  pointer-events: none;
}

.hero__orbit {
  width: 100%;
  height: 100%;
  animation: rotate 60s linear infinite;
}

.hero__orbiter {
  transform-origin: 400px 400px;
  animation: rotate 12s linear infinite;
}

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

.hero__inner {
  position: relative;
  z-index: 2;
  max-width: var(--maxw);
  margin: 0 auto;
  width: 100%;
}

.hero__tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border: 1px solid var(--line-strong);
  color: var(--ink-2);
  margin-bottom: 36px;
  background: var(--surface);
  animation: fadeUp 1s 0.1s both;
}

.hero__tag .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: 0.4;
    transform: scale(0.8);
  }
}

.hero__title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2.6rem, 7.5vw, 7rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
  margin-bottom: 36px;
  max-width: 16ch;
}

.hero__title .line {
  display: block;
  overflow: hidden;
}

.hero__title .line>span {
  display: block;
  animation: rise 1.1s cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

.hero__title .line:nth-child(1)>span {
  animation-delay: 0.2s;
}

.hero__title .line:nth-child(2)>span {
  animation-delay: 0.35s;
}

.hero__title em {
  font-style: italic;
  color: var(--accent-2);
  font-weight: 400;
}

@keyframes rise {
  from {
    transform: translateY(100%);
    opacity: 0;
  }

  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes fadeUp {
  from {
    transform: translateY(20px);
    opacity: 0;
  }

  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.hero__sub {
  font-size: clamp(1rem, 1.4vw, 1.2rem);
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 56ch;
  margin-bottom: 48px;
  animation: fadeUp 1s 0.6s both;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 72px;
  animation: fadeUp 1s 0.75s both;
}

.hero__meta {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  border-top: 1px solid var(--line);
  padding-top: 32px;
  max-width: 760px;
  animation: fadeUp 1s 0.9s both;
}

.meta__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.meta__num {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 2.6vw, 2.4rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.meta__num .unit {
  font-size: 0.5em;
  color: var(--ink-3);
  margin-left: 2px;
}

.meta__label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  color: var(--ink-3);
  text-transform: uppercase;
}

.hero__scroll {
  position: absolute;
  bottom: 32px;
  right: var(--pad-x);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: var(--ink-3);
  z-index: 4;
}

.hero__scroll .line-v {
  width: 1px;
  height: 50px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0% {
    transform: scaleY(0);
    transform-origin: top;
  }

  50% {
    transform: scaleY(1);
    transform-origin: top;
  }

  51% {
    transform: scaleY(1);
    transform-origin: bottom;
  }

  100% {
    transform: scaleY(0);
    transform-origin: bottom;
  }
}

/* =========================================================
   SECTIONS — common
   ========================================================= */
.section {
  position: relative;
  padding: 140px var(--pad-x);
  z-index: 3;
}

.section__head {
  max-width: var(--maxw);
  margin: 0 auto 80px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.section__label {
  color: var(--accent-2);
  display: inline-flex;
  align-items: center;
}

.section__label .mono::before {
  content: '— ';
  color: var(--accent);
}

.section__title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2.2rem, 5.5vw, 4.8rem);
  line-height: 1;
  letter-spacing: -0.025em;
  max-width: 22ch;
}

.section__title em {
  font-style: italic;
  color: var(--accent-2);
  font-weight: 400;
}

.section__intro {
  max-width: 64ch;
  color: var(--ink-2);
  font-size: clamp(1rem, 1.2vw, 1.1rem);
  line-height: 1.6;
  margin-top: 12px;
}

/* =========================================================
   PRODUCTS
   ========================================================= */
.section--products {
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, var(--accent-soft), transparent 70%),
    var(--bg);
}

.product-flagship {
  max-width: var(--maxw);
  margin: 0 auto 100px;
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 80px;
  align-items: center;
}

.product-flagship__visual {
  position: relative;
  background: var(--bg-2);
  border: 1px solid var(--line);
  padding: 20px;
  aspect-ratio: 4/5;
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-flagship__visual::before,
.product-flagship__visual::after {
  content: '';
  position: absolute;
  width: 12px;
  height: 12px;
  border: 1px solid var(--accent);
}

.product-flagship__visual::before {
  top: -1px;
  left: -1px;
  border-right: none;
  border-bottom: none;
}

.product-flagship__visual::after {
  bottom: -1px;
  right: -1px;
  border-left: none;
  border-top: none;
}

.product-svg {
  width: 100%;
  height: 100%;
}

.bottle-pulse {
  animation: bottleScan 3s ease-in-out infinite;
}

@keyframes bottleScan {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.6;
    filter: drop-shadow(0 0 12px var(--accent));
  }
}

.badge {
  position: absolute;
  top: 20px;
  left: 20px;
  padding: 6px 12px;
  background: var(--accent);
  color: white;
  font-size: 0.65rem;
  z-index: 2;
}

.product__id {
  color: var(--accent-2);
  margin-bottom: 16px;
  display: inline-block;
}

.product__name {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.product__name span {
  font-style: italic;
  color: var(--ink-3);
  font-weight: 300;
}

.product__tagline {
  font-size: 1.15rem;
  color: var(--ink);
  margin-bottom: 14px;
  line-height: 1.4;
}

.product__desc {
  color: var(--ink-2);
  margin-bottom: 40px;
  line-height: 1.65;
  max-width: 60ch;
}

.product__features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px 28px;
}

.feature {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 16px;
  align-items: start;
}

.feature__icon {
  width: 40px;
  height: 40px;
  border: 1px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-2);
  flex-shrink: 0;
}

.feature__icon svg {
  width: 18px;
  height: 18px;
}

.feature h4 {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}

.feature p {
  font-size: 0.88rem;
  color: var(--ink-3);
  line-height: 1.55;
}

/* Pillars */
.pillars {
  max-width: var(--maxw);
  margin: 0 auto 100px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.pillar {
  padding: 40px 36px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--bg-2);
  transition: background 0.3s;
}

.pillar:hover {
  background: var(--bg-3);
}

.pillar__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.pillar__num {
  color: var(--accent-2);
}

.pillar h4 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.4rem;
  line-height: 1.15;
  letter-spacing: -0.015em;
}

.pillar ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.pillar li {
  font-size: 0.92rem;
  color: var(--ink-2);
  line-height: 1.55;
  padding-left: 18px;
  position: relative;
}

.pillar li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 1px;
  background: var(--accent);
}

.pillar li strong {
  color: var(--ink);
  font-weight: 600;
}

/* Specs */
.specs {
  max-width: var(--maxw);
  margin: 0 auto;
  border: 1px solid var(--line);
  background: var(--bg-2);
  padding: 48px;
}

.specs__head {
  display: flex;
  align-items: baseline;
  gap: 20px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.specs__head .mono {
  color: var(--accent-2);
}

.specs__head h3 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.6rem;
  letter-spacing: -0.015em;
}

.specs__table {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0 60px;
}

.spec {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.92rem;
}

.spec__k {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink-3);
}

.spec__v {
  color: var(--ink);
}

/* =========================================================
   TECHNOLOGY
   ========================================================= */
.section--tech {
  background: var(--bg);
  position: relative;
}

.tech__wrap {
  max-width: var(--maxw);
  margin: 0 auto;
}

@media (min-width: 1100px) {
  .tech__wrap {
    display: grid;
    grid-template-columns: 1fr 1.15fr;
    gap: 80px;
    align-items: flex-start;
  }

  .tech__wrap .section__head {
    margin-bottom: 0;
    position: sticky;
    top: 140px;
  }

  .tech__wrap .who__pipeline {
    margin-top: 0;
  }
}

.section--tech::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 10% 20%, var(--accent-soft), transparent 50%),
    radial-gradient(circle at 90% 80%, var(--accent-soft), transparent 50%);
  pointer-events: none;
}

.tech-grid {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  position: relative;
  z-index: 1;
}

.tech-card {
  padding: 40px 32px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--bg-2);
  position: relative;
  transition: all 0.4s ease;
  overflow: hidden;
}

.tech-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-soft), transparent 60%);
  opacity: 0;
  transition: opacity 0.4s;
  pointer-events: none;
}

.tech-card:hover {
  background: var(--bg-3);
}

.tech-card:hover::before {
  opacity: 1;
}

.tech-card:hover .tech-card__icon {
  color: var(--accent);
  border-color: var(--accent);
}

.tech-card--lg {
  grid-column: span 2;
}

.tech-card__num {
  position: absolute;
  top: 20px;
  right: 24px;
  color: var(--ink-4);
}

.tech-card__icon {
  width: 56px;
  height: 56px;
  border: 1px solid var(--line-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-2);
  margin-bottom: 28px;
  transition: all 0.3s;
}

.tech-card__icon svg {
  width: 28px;
  height: 28px;
}

.tech-card h3 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.35rem;
  margin-bottom: 12px;
  letter-spacing: -0.015em;
  line-height: 1.15;
}

.tech-card p {
  font-size: 0.92rem;
  color: var(--ink-2);
  line-height: 1.6;
  max-width: 50ch;
}

/* =========================================================
   WHO WE ARE
   ========================================================= */

/* =========================================================
   WHO WE ARE
   ========================================================= */
.section--who {
  background:
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
}

.who__grid {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 100px;
  align-items: start;
}

.who__left {
  position: sticky;
  top: 120px;
}

.who__left .section__label {
  margin-bottom: 24px;
}

.who__lead {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.4rem, 2.2vw, 1.8rem);
  line-height: 1.35;
  color: var(--ink);
  margin-bottom: 28px;
  letter-spacing: -0.015em;
}

.who__lead strong {
  font-weight: 400;
  font-style: italic;
  color: var(--accent-2);
}

.who__right>p {
  color: var(--ink-2);
  font-size: 1.05rem;
  line-height: 1.65;
  margin-bottom: 20px;
  max-width: 60ch;
}

.who__right strong {
  color: var(--ink);
  font-weight: 600;
}

.who__pipeline {
  margin-top: 64px;
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}

.pipeline-node {
  display: flex;
  align-items: center;
  gap: 32px;
  background: var(--bg-2);
  border: 1px solid var(--line-strong);
  padding: 32px;
  border-radius: 8px;
  position: relative;
  z-index: 2;
  transition: all 0.4s;
}

.pipeline-node:hover {
  background: var(--bg-3);
  transform: translateX(10px);
  border-color: var(--accent);
  box-shadow: 0 0 30px rgba(31, 107, 255, 0.15);
}

.node-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--bg);
  border: 1px solid var(--accent);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 0 20px rgba(31, 107, 255, 0.2);
}

.node-icon svg {
  width: 32px;
  height: 32px;
}

.node-content .mono {
  color: var(--accent-2);
  font-size: 0.75rem;
  margin-bottom: 8px;
  display: block;
}

.node-content h5 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
  margin-bottom: 8px;
  color: #fff;
}

.node-content p {
  color: var(--ink-2);
  line-height: 1.5;
  font-size: 0.95rem;
}

.pipeline-line {
  height: 40px;
  width: 2px;
  background: var(--line-strong);
  margin-left: 64px;
  position: relative;
  z-index: 1;
}

.pipeline-line::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--accent);
  opacity: 0.3;
}

@media (max-width: 600px) {
  .pipeline-node {
    flex-direction: column;
    text-align: center;
    gap: 16px;
    padding: 24px;
  }

  .pipeline-line {
    margin-left: 50%;
    height: 24px;
  }
}

/* =========================================================
   CTA
   ========================================================= */
.cta {
  position: relative;
  padding: 120px var(--pad-x);
  text-align: center;
  z-index: 3;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--bg);
  overflow: hidden;
}

.cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 80% at 50% 50%, var(--accent-soft), transparent 70%);
  pointer-events: none;
}

.cta__inner {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.cta__inner .mono {
  color: var(--accent-2);
  margin-bottom: 24px;
  display: inline-block;
}

.cta h2 {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2rem, 4.5vw, 3.6rem);
  line-height: 1.05;
  letter-spacing: -0.025em;
  margin-bottom: 48px;
}

.cta h2 em {
  font-style: italic;
  color: var(--accent-2);
  font-weight: 400;
}

/* =========================================================
   FOOTER
   ========================================================= */
.footer {
  background: var(--bg-2);
  padding: 80px var(--pad-x) 32px;
  position: relative;
  z-index: 3;
}

.footer__top {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.6fr 1fr 1.2fr 1.2fr;
  gap: 60px;
  padding-bottom: 60px;
  border-bottom: 1px solid var(--line);
}

.footer__logo {
  height: 86px;
  width: auto;
  margin-bottom: 20px;
  filter: invert(1) hue-rotate(180deg) brightness(1.1);
  mix-blend-mode: lighten;
}

.footer__brand p {
  color: var(--ink-3);
  font-size: 0.92rem;
  line-height: 1.5;
  max-width: 32ch;
  margin-bottom: 24px;
}

.footer__social {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border: 1px solid var(--line-strong);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: all 0.2s;
  color: var(--ink-2);
}

.footer__social:hover {
  border-color: var(--accent);
  color: var(--accent-2);
  background: var(--accent-soft);
}

.footer__col h6 {
  color: var(--accent-2);
  margin-bottom: 20px;
  font-weight: 400;
}

.footer__col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer__col a {
  color: var(--ink-2);
  font-size: 0.92rem;
  transition: color 0.2s;
}

.footer__col a:hover {
  color: var(--accent-2);
}

.footer__col--addr li {
  font-size: 0.9rem;
  color: var(--ink-2);
  line-height: 1.5;
}

.footer__col--addr strong {
  color: var(--ink);
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-family: var(--font-mono);
  display: inline-block;
  margin-bottom: 4px;
}

.footer__bottom {
  max-width: var(--maxw);
  margin: 40px auto 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  color: var(--ink-4);
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 1024px) {
  .nav__links {
    display: none;
  }

  .product-flagship {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .product__features {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

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

  .tech-card--lg {
    grid-column: span 2;
  }

  .who__grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .who__left {
    position: static;
  }

  .footer__top {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

  .specs__table {
    grid-template-columns: 1fr;
    gap: 0;
  }
}

@media (max-width: 720px) {
  .nav__cta {
    display: none;
  }

  .hero {
    padding-top: 110px;
  }

  .hero__bg {
    right: -30%;
    width: 130vw;
    opacity: 0.55;
  }

  .hero__meta {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .hero__scroll {
    display: none;
  }

  .section {
    padding: 90px var(--pad-x);
  }

  .section__head {
    margin-bottom: 56px;
  }

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

  .tech-card--lg {
    grid-column: span 1;
  }

  .specs {
    padding: 28px 20px;
  }

  .pillar {
    padding: 32px 24px;
  }

  .footer__top {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer__bottom {
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
  }

  .value {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .value__num {
    padding-top: 0;
  }
}

/* ====== Scroll reveal ====== */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s cubic-bezier(0.2, 0.8, 0.2, 1),
    transform 0.9s cubic-bezier(0.2, 0.8, 0.2, 1);
  will-change: opacity, transform;
}

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

/* ====== Nav scrolled state ====== */
.nav.is-scrolled {
  padding-top: 14px;
  padding-bottom: 14px;
  background: rgba(5, 11, 22, 0.92);
}

@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}