/* ============================================================
   KAIROS — Sovereign Multi-Domain AI Infrastructure Platform
   Stylesheet · Dark, premium, performance-first
   ============================================================ */

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

html {
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { font-weight: 600; line-height: 1.15; letter-spacing: -0.02em; }

::selection { background: var(--c-cyan); color: #000; }

/* -------- Tokens -------- */
:root {
  /* Surfaces */
  --bg: #07090F;
  --bg-2: #0B0F18;
  --surface: #0E1420;
  --surface-2: #131B2A;
  --surface-3: #182234;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);

  /* Text */
  --text: #EAEEF5;
  --text-2: #A4B0C2;
  --text-3: #6B7689;
  --text-4: #45505F;

  /* Accents (deck palette) */
  --c-cyan:  #00D4FF;
  --c-cyan-2: #5BC8E5;
  --c-green: #19D3A2;
  --c-amber: #F5B946;
  --c-blue:  #4D8AF0;
  --c-red:   #E85D75;

  /* Layout */
  --container: 1200px;
  --gutter: clamp(20px, 4vw, 48px);
  --section-py: clamp(80px, 10vw, 140px);
  --radius: 14px;
  --radius-lg: 20px;

  /* Type scale */
  --fs-hero: clamp(48px, 9vw, 128px);
  --fs-display: clamp(36px, 6vw, 72px);
  --fs-h2: clamp(32px, 4.5vw, 56px);
  --fs-h3: clamp(20px, 2vw, 24px);
  --fs-lede: clamp(16px, 1.4vw, 19px);

  /* Effects */
  --shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.5);
  --gradient-cyan: linear-gradient(135deg, #00D4FF 0%, #5BC8E5 100%);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* -------- Layout helpers -------- */
.container {
  width: 100%;
  max-width: var(--container);
  padding-inline: var(--gutter);
  margin-inline: auto;
}

.section {
  padding-block: var(--section-py);
  position: relative;
}

.section--alt { background: var(--bg-2); }
.section--alt + .section--alt { padding-top: 0; }

.section__head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(24px, 4vw, 64px);
  align-items: start;
  margin-bottom: clamp(48px, 6vw, 80px);
}

.section__num {
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: clamp(14px, 1vw, 16px);
  color: var(--c-cyan);
  letter-spacing: 0.08em;
  padding-top: 0.6em;
  position: relative;
}

.section__num::before {
  content: '';
  position: absolute;
  inset-block-start: 50%;
  inset-inline-start: -8px;
  width: 24px;
  height: 1px;
  background: var(--c-cyan);
  opacity: 0.5;
}

.section__title {
  font-size: var(--fs-h2);
  font-weight: 600;
  letter-spacing: -0.025em;
  margin-bottom: 20px;
  background: linear-gradient(180deg, #FFF 0%, #C6CFDF 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.section__lede {
  font-size: var(--fs-lede);
  color: var(--text-2);
  max-width: 60ch;
}

.section__pullquote {
  margin-top: clamp(48px, 6vw, 80px);
  font-size: clamp(20px, 2.4vw, 30px);
  line-height: 1.35;
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--text);
  max-width: 30ch;
  margin-inline: auto;
  text-align: center;
  text-wrap: balance;
}

.section__pullquote::before {
  content: '';
  display: block;
  width: 64px;
  height: 2px;
  background: var(--c-cyan);
  margin: 0 auto clamp(24px, 3vw, 40px);
}

/* -------- Buttons -------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.01em;
  border: 1px solid transparent;
  transition: all 0.25s var(--ease);
  white-space: nowrap;
  cursor: pointer;
}

.btn--lg { padding: 15px 26px; font-size: 15px; }

.btn--primary {
  background: var(--text);
  color: #000;
  border-color: var(--text);
}
.btn--primary:hover {
  background: var(--c-cyan);
  border-color: var(--c-cyan);
  transform: translateY(-1px);
}

.btn--ghost {
  color: var(--text);
  border-color: var(--border-strong);
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(8px);
}
.btn--ghost:hover {
  border-color: var(--c-cyan);
  color: var(--c-cyan);
  background: rgba(0, 212, 255, 0.05);
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease), backdrop-filter 0.3s;
  border-bottom: 1px solid transparent;
}

.nav.is-scrolled {
  background: rgba(7, 9, 15, 0.78);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom-color: var(--border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  width: 100%;
  max-width: var(--container);
  padding: 16px var(--gutter);
  margin-inline: auto;
}

.nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
}
.nav__mark {
  width: 72px;
  height: 72px;
  object-fit: contain;
  display: block;
  filter: drop-shadow(0 0 14px rgba(0, 180, 255, 0.4));
}
.nav__name {
  font-weight: 700;
  letter-spacing: 0.2em;
  font-size: 17px;
}

.nav__links {
  display: flex;
  gap: 30px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
}
.nav__links a {
  position: relative;
  padding: 4px 2px;
  color: var(--text-2);
  transition: color 0.2s;
}
.nav__links a:hover { color: var(--text); }
.nav__links a::after {
  content: '';
  position: absolute;
  inset-inline: 0;
  inset-block-end: -2px;
  height: 1px;
  background: var(--c-cyan);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}
.nav__links a:hover::after { transform: scaleX(1); }

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

.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px;
}
.nav__burger span {
  display: block;
  height: 1.5px;
  background: var(--text);
  transition: all 0.3s var(--ease);
}
.nav__burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav__burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.nav__progress {
  position: absolute;
  bottom: 0; left: 0;
  height: 1.5px;
  width: 0%;
  background: var(--gradient-cyan);
  transition: width 0.05s linear;
}

@media (max-width: 960px) {
  .nav__links {
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    flex-direction: column;
    gap: 0;
    background: rgba(7, 9, 15, 0.96);
    backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border);
    padding: 12px var(--gutter) 24px;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: all 0.25s var(--ease);
  }
  .nav__links a { padding: 14px 0; border-bottom: 1px solid var(--border); font-size: 16px; }
  .nav__links a:last-child { border-bottom: 0; }
  .nav.is-open .nav__links {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav__burger { display: flex; }
  .nav__cta .btn--ghost { display: none; }
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-block: 140px 80px;
  overflow: hidden;
  isolation: isolate;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 80% 60% at 50% 30%, rgba(0, 212, 255, 0.10), transparent 70%),
    radial-gradient(ellipse 60% 100% at 100% 100%, rgba(77, 138, 240, 0.08), transparent 60%),
    var(--bg);
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 40%, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 40%, #000 30%, transparent 80%);
}

.hero__orb {
  position: absolute;
  top: 50%;
  right: -10%;
  transform: translateY(-50%);
  width: clamp(400px, 60vw, 720px);
  aspect-ratio: 1;
  pointer-events: none;
  opacity: 0.85;
}

.orb {
  position: relative;
  width: 100%; height: 100%;
}
.orb__core {
  position: absolute;
  inset: 30%;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #5BC8E5 0%, #0084B4 30%, #001428 70%);
  box-shadow:
    inset -30px -30px 80px rgba(0, 0, 0, 0.7),
    inset 20px 20px 60px rgba(0, 212, 255, 0.3),
    0 0 80px rgba(0, 212, 255, 0.4);
  animation: orbFloat 8s ease-in-out infinite;
}
.orb__glow {
  position: absolute;
  inset: 25%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.4) 0%, transparent 60%);
  filter: blur(40px);
  animation: orbPulse 4s ease-in-out infinite;
}
.orb__ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(0, 212, 255, 0.18);
  animation: orbRotate 30s linear infinite;
}
.orb__ring--1 { inset: 0; }
.orb__ring--2 { inset: 8%; border-color: rgba(91, 200, 229, 0.12); animation-duration: 45s; animation-direction: reverse; }
.orb__ring--3 { inset: 16%; border-color: rgba(0, 212, 255, 0.06); animation-duration: 60s; }

@keyframes orbFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
@keyframes orbPulse {
  0%, 100% { opacity: 0.7; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.05); }
}
@keyframes orbRotate {
  to { transform: rotate(360deg); }
}

.hero__schema {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.22;
  filter: blur(0.4px);
  mix-blend-mode: screen;
  -webkit-mask-image: radial-gradient(ellipse 95% 80% at 50% 55%, #000 35%, transparent 92%);
          mask-image: radial-gradient(ellipse 95% 80% at 50% 55%, #000 35%, transparent 92%);
  animation: schemaFloat 14s ease-in-out infinite;
}
.hero__schema svg {
  width: 100%;
  height: 100%;
  display: block;
}
.hero__schema circle { transition: opacity 0.4s var(--ease); }
@keyframes schemaFloat {
  0%, 100% { transform: translateY(0) scale(1); opacity: 0.22; }
  50%      { transform: translateY(-8px) scale(1.012); opacity: 0.28; }
}
@media (max-width: 720px) {
  .hero__schema { opacity: 0.16; }
}

.hero__particles {
  position: absolute;
  inset: 0;
}
.hero__particles span {
  position: absolute;
  width: 2px; height: 2px;
  background: var(--c-cyan);
  border-radius: 50%;
  opacity: 0;
  animation: drift 12s linear infinite;
  box-shadow: 0 0 6px var(--c-cyan);
}
@keyframes drift {
  0%   { opacity: 0; transform: translate3d(0, 100px, 0); }
  10%  { opacity: 0.6; }
  90%  { opacity: 0.6; }
  100% { opacity: 0; transform: translate3d(0, -800px, 0); }
}

.hero__inner {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: clamp(28px, 4vw, 48px);
  max-width: 1100px;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 14px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-2);
  background: rgba(255, 255, 255, 0.02);
  backdrop-filter: blur(10px);
  width: fit-content;
}
.hero__eyebrow .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--c-cyan);
  box-shadow: 0 0 12px var(--c-cyan);
  animation: dotBlink 2.5s ease-in-out infinite;
}
@keyframes dotBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero__title {
  font-size: clamp(38px, 6.4vw, 92px);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.03em;
  white-space: nowrap;
}
.hero__title-line {
  display: inline;
  background: linear-gradient(180deg, #FFFFFF 0%, #B5C0D2 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__title-line + .hero__title-line { margin-left: 0.28em; }
@media (max-width: 720px) {
  .hero__title { white-space: normal; }
  .hero__title-line { display: block; }
  .hero__title-line + .hero__title-line { margin-left: 0; }
}
.hero__title-accent {
  background: linear-gradient(135deg, #00D4FF 0%, #5BC8E5 50%, #4D8AF0 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__lede {
  font-size: clamp(17px, 1.6vw, 22px);
  color: var(--text-2);
  max-width: 56ch;
  line-height: 1.5;
}

.hero__actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(20px, 3vw, 40px);
  padding-top: clamp(20px, 4vw, 40px);
  border-top: 1px solid var(--border);
  max-width: 720px;
}
.stat {}
.stat__value {
  font-size: clamp(28px, 3.5vw, 44px);
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--c-cyan);
  font-variant-numeric: tabular-nums;
}
.stat__label {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-top: 6px;
}

.hero__scroll {
  position: absolute;
  bottom: 30px;
  left: var(--gutter);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-3);
  font-family: 'JetBrains Mono', monospace;
}
.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(180deg, var(--c-cyan), transparent);
  position: relative;
  overflow: hidden;
}
.hero__scroll-line::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--c-cyan);
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(100%); }
}

@media (max-width: 720px) {
  .hero__stats { grid-template-columns: repeat(2, 1fr); }
  .hero__orb { right: -30%; opacity: 0.5; }
  .hero__scroll { display: none; }
}

/* ============================================================
   MARQUEE
   ============================================================ */
.marquee {
  border-block: 1px solid var(--border);
  background: var(--bg);
  overflow: hidden;
  padding-block: 28px;
}
.marquee__track {
  display: flex;
  align-items: center;
  gap: 32px;
  white-space: nowrap;
  font-size: clamp(20px, 2.6vw, 36px);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-3);
  animation: marquee 30s linear infinite;
  width: max-content;
}
.marquee__track > span:not(.marquee__dot) {
  background: linear-gradient(90deg, var(--text), var(--text-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.marquee__dot { color: var(--c-cyan); font-size: 0.4em; }
@keyframes marquee {
  to { transform: translateX(-50%); }
}

/* ============================================================
   ORIGIN — name etymology / manifesto
   ============================================================ */
.origin {
  position: relative;
  padding-block: clamp(120px, 18vw, 200px);
  background: var(--bg);
  overflow: hidden;
  isolation: isolate;
}

.origin::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 50% 40% at 30% 0%, rgba(0, 212, 255, 0.07), transparent 60%),
    radial-gradient(ellipse 40% 60% at 100% 100%, rgba(77, 138, 240, 0.05), transparent 65%);
  pointer-events: none;
  z-index: -1;
}

.origin::after {
  content: '';
  position: absolute;
  inset-inline: 0;
  inset-block-start: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-strong), transparent);
}

.origin__greek {
  position: absolute;
  inset-inline-end: -2vw;
  inset-block-start: -4vh;
  font-family: 'Inter', serif;
  font-weight: 200;
  font-size: clamp(180px, 32vw, 460px);
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: rgba(0, 212, 255, 0.045);
  pointer-events: none;
  user-select: none;
  z-index: -1;
  white-space: nowrap;
}

.origin__inner {
  position: relative;
  display: grid;
  gap: clamp(36px, 5vw, 64px);
  max-width: 980px;
}

.origin__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 14px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-2);
  background: rgba(255, 255, 255, 0.02);
  backdrop-filter: blur(10px);
  width: fit-content;
  margin-bottom: 28px;
}

.origin__eyebrow .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--c-cyan);
  box-shadow: 0 0 12px var(--c-cyan);
  animation: dotBlink 2.5s ease-in-out infinite;
}

.origin__title {
  font-size: clamp(48px, 8.5vw, 112px);
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 0.95;
  text-wrap: balance;
  max-width: 14ch;
  background: linear-gradient(180deg, #FFFFFF 0%, #B5C0D2 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.origin__lead {
  font-size: clamp(18px, 1.7vw, 22px);
  line-height: 1.55;
  color: var(--text);
  font-weight: 300;
  max-width: 60ch;
  text-wrap: pretty;
}

.origin__lead em {
  font-style: italic;
  color: var(--c-cyan);
  font-weight: 400;
}

.origin__pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(28px, 4vw, 56px);
  padding-top: clamp(20px, 3vw, 40px);
  border-top: 1px solid var(--border);
}

.origin__pillars li {
  display: grid;
  gap: 8px;
}

.origin__pillar-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-cyan);
  margin-bottom: 4px;
}

.origin__pillar-title {
  font-size: clamp(18px, 1.6vw, 22px);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
}

.origin__pillars p {
  font-size: 14px;
  line-height: 1.55;
  color: var(--text-2);
}

.origin__quote {
  font-size: clamp(28px, 4.6vw, 56px);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--text);
  text-wrap: balance;
  max-width: 24ch;
  padding-top: clamp(20px, 3vw, 40px);
  border-top: 1px solid var(--border);
  font-style: normal;
}

.origin__quote-accent {
  background: linear-gradient(135deg, #00D4FF 0%, #5BC8E5 60%, #4D8AF0 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

@media (max-width: 720px) {
  .origin__pillars { grid-template-columns: 1fr; gap: 28px; }
}

/* ============================================================
   GRID + CARDS
   ============================================================ */
.grid { display: grid; gap: clamp(16px, 2vw, 24px); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 960px) {
  .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
}

.card {
  --card-accent: var(--c-cyan);
  position: relative;
  padding: 28px 28px 28px 32px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), background 0.3s var(--ease);
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--card-accent);
}
.card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 0% 0%, var(--card-accent), transparent 50%);
  opacity: 0;
  transition: opacity 0.4s var(--ease);
  pointer-events: none;
  mix-blend-mode: overlay;
}

.card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--card-accent) 40%, transparent);
}
.card:hover::after { opacity: 0.08; }

.card--cyan  { --card-accent: var(--c-cyan); }
.card--green { --card-accent: var(--c-green); }
.card--amber { --card-accent: var(--c-amber); }
.card--blue  { --card-accent: var(--c-blue); }
.card--red   { --card-accent: var(--c-red); }

.card__kicker {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--card-accent);
  margin-bottom: 10px;
}
.card__title {
  font-size: var(--fs-h3);
  margin-bottom: 10px;
  color: var(--text);
}
.card p { color: var(--text-2); font-size: 15px; line-height: 1.55; }

.cards--compact .card { padding: 22px 24px 22px 26px; }
.cards--compact .card__title { font-size: 17px; }
.cards--compact .card p { font-size: 14px; }

/* ============================================================
   CALLOUT (operational definition)
   ============================================================ */
.callout {
  margin-top: clamp(40px, 5vw, 56px);
  padding: clamp(28px, 4vw, 44px);
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.06), rgba(77, 138, 240, 0.03));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}
.callout::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius-lg);
  padding: 1px;
  background: linear-gradient(135deg, var(--c-cyan), transparent 50%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.callout__label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-cyan);
  margin-bottom: 16px;
}
.callout__text {
  font-size: clamp(16px, 1.6vw, 19px);
  line-height: 1.6;
  color: var(--text);
}

.pipeline {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-top: 12px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.04em;
}
.pipeline > span:not(.pipeline__arrow) {
  padding: 5px 12px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
}
.pipeline__arrow { color: var(--c-cyan); }

/* ============================================================
   CLOSED-LOOP DIAGRAM
   ============================================================ */
.loop {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
  position: relative;
}
.loop::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, transparent 0%, rgba(0, 212, 255, 0.05) 50%, transparent 100%);
  pointer-events: none;
}

.loop__step {
  --accent: var(--c-cyan);
  padding: 32px 24px;
  border-right: 1px solid var(--border);
  position: relative;
  transition: background 0.3s var(--ease);
}
.loop__step:last-child { border-right: 0; }
.loop__step:hover { background: rgba(255, 255, 255, 0.02); }

.loop__step::before {
  content: '';
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 2px;
  background: var(--accent);
  transform-origin: left;
  transform: scaleX(0);
  transition: transform 0.6s var(--ease);
}
.loop__step.is-revealed::before { transform: scaleX(1); }

.loop__num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 16px;
}

.loop__title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text);
}

.loop__step p {
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.5;
}

@media (max-width: 960px) {
  .loop { grid-template-columns: repeat(2, 1fr); }
  .loop__step:nth-child(2n) { border-right: 0; }
  .loop__step:nth-child(-n+4) { border-bottom: 1px solid var(--border); }
}
@media (max-width: 480px) {
  .loop { grid-template-columns: 1fr; }
  .loop__step { border-right: 0; border-bottom: 1px solid var(--border); }
  .loop__step:last-child { border-bottom: 0; }
}

/* ============================================================
   DOMAINS
   ============================================================ */
.domains { gap: 12px; }

.domain {
  --accent: var(--c-cyan);
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all 0.3s var(--ease);
  position: relative;
  overflow: hidden;
}
.domain::before {
  content: '';
  position: absolute;
  inset: auto 0 0 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease);
}
.domain:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent) 40%, transparent);
  background: var(--surface-2);
}
.domain:hover::before { transform: scaleX(1); }

.domain__icon {
  width: 32px;
  height: 32px;
  color: var(--accent);
  margin-bottom: 24px;
}
.domain__title {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
  text-transform: uppercase;
}
.domain p {
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.5;
}

/* ============================================================
   PLATFORMS — tech showcase grid
   ============================================================ */
.platforms {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
@media (max-width: 1024px) { .platforms { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px)  { .platforms { grid-template-columns: 1fr; } }

.platform {
  --accent: var(--c-cyan);
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), background 0.3s var(--ease);
}

.platform::before {
  content: '';
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0.18);
  transform-origin: left;
  transition: transform 0.5s var(--ease);
}
.platform::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 100% 0%, var(--accent), transparent 55%);
  opacity: 0;
  transition: opacity 0.4s var(--ease);
  pointer-events: none;
  mix-blend-mode: overlay;
}

.platform:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--accent) 40%, transparent);
  background: var(--surface-2);
}
.platform:hover::before { transform: scaleX(1); }
.platform:hover::after { opacity: 0.10; }

.platform__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.platform__domain {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
}

.platform__media {
  margin: -28px -28px 22px;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #050810;
  border-bottom: 1px solid var(--border);
  position: relative;
}

/* Wide / featured platform — spans the whole row, image and text side-by-side */
.platform--wide {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(260px, 1fr) 1.25fr;
  grid-template-rows: auto;
  align-items: stretch;
  column-gap: 0;
  padding: 0;
  overflow: hidden;
}
.platform--wide .platform__media {
  grid-column: 1;
  grid-row: 1 / span 99;
  margin: 0;
  aspect-ratio: auto;
  height: 100%;
  min-height: 200px;
  align-self: stretch;
  border-bottom: none;
  border-right: 1px solid var(--border);
}
.platform--wide > :not(.platform__media) {
  grid-column: 2;
}
.platform--wide .platform__head {
  margin: 0;
  padding: 28px 28px 0;
}
.platform--wide .platform__name {
  font-size: clamp(22px, 2.2vw, 28px);
  margin: 0;
  padding: 8px 28px 6px;
  line-height: 1.2;
}
.platform--wide .platform__variants {
  margin: 0;
  padding: 0 28px 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--text-3);
  display: block;
}
.platform--wide .platform__desc {
  margin: 0;
  padding: 4px 28px 28px;
  font-size: 14px;
  line-height: 1.55;
  color: var(--text-2);
}
.platform--wide .platform__caps { display: none; }
@media (max-width: 900px) {
  .platform--wide {
    grid-template-columns: 1fr;
    column-gap: 0;
    padding: 0;
  }
  .platform--wide .platform__media {
    grid-column: 1;
    grid-row: auto;
    aspect-ratio: 16 / 9;
    height: auto;
    min-height: 0;
    margin: 0;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .platform--wide > :not(.platform__media) { grid-column: 1; }
  .platform--wide .platform__head { padding: 22px 24px 0; }
  .platform--wide .platform__name { padding: 8px 24px 4px; }
  .platform--wide .platform__variants { padding: 0 24px 8px; }
  .platform--wide .platform__desc { padding: 4px 24px 24px; }
}
.platform__media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    transparent 60%,
    rgba(7, 9, 15, 0.55) 100%
  );
  pointer-events: none;
}
.platform__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s var(--ease), filter 0.6s var(--ease);
  filter: saturate(0.9) contrast(1.05);
}
.platform:hover .platform__media img {
  transform: scale(1.04);
  filter: saturate(1) contrast(1.05);
}

.platform__name {
  font-size: 26px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 4px;
  text-wrap: balance;
}

.platform__variants {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--text-3);
  margin-bottom: 16px;
}

.platform__desc {
  font-size: 14px;
  line-height: 1.55;
  color: var(--text-2);
  margin-bottom: 18px;
  flex-grow: 0;
}

.platform__caps {
  display: grid;
  gap: 7px;
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  line-height: 1.5;
  color: var(--text-2);
}
.platform__caps li {
  position: relative;
  padding-left: 18px;
}
.platform__caps li::before {
  content: '';
  position: absolute;
  left: 0; top: 9px;
  width: 8px; height: 1px;
  background: var(--accent);
}

/* ============================================================
   STACK / LAYERS
   ============================================================ */
.stack__layers {
  display: grid;
  gap: 12px;
}

.layer {
  --accent: var(--c-cyan);
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: clamp(20px, 3vw, 40px);
  padding: clamp(24px, 3vw, 36px);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all 0.3s var(--ease);
  position: relative;
  overflow: hidden;
}
.layer:hover {
  border-color: color-mix(in srgb, var(--accent) 30%, transparent);
  background: var(--surface-2);
}

.layer__index {
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--accent);
  align-self: start;
  padding-top: 6px;
  border-top: 2px solid var(--accent);
  width: 36px;
}

.layer__title {
  font-size: clamp(20px, 2.4vw, 28px);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
  color: var(--text);
}
.layer__desc {
  font-size: 15px;
  line-height: 1.55;
  color: var(--text-2);
  margin-bottom: 18px;
}
.layer__points {
  display: grid;
  gap: 8px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--text-2);
}
.layer__points li {
  position: relative;
  padding-left: 20px;
}
.layer__points li::before {
  content: '';
  position: absolute;
  left: 0; top: 9px;
  width: 8px; height: 1px;
  background: var(--accent);
}
.layer__points strong {
  color: var(--text);
  font-weight: 600;
}

@media (max-width: 720px) {
  .layer { grid-template-columns: 1fr; gap: 16px; }
  .layer__index { width: auto; }
}

/* ============================================================
   CTA
   ============================================================ */
.cta {
  padding-block: clamp(80px, 10vw, 140px);
  background:
    radial-gradient(ellipse 60% 80% at 100% 0%, rgba(0, 212, 255, 0.10), transparent 60%),
    radial-gradient(ellipse 60% 80% at 0% 100%, rgba(77, 138, 240, 0.08), transparent 60%),
    var(--bg);
  position: relative;
  overflow: hidden;
}
.cta::before {
  content: '';
  position: absolute;
  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;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, #000, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, #000, transparent 80%);
  pointer-events: none;
}

.cta__inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: end;
  position: relative;
}
@media (max-width: 960px) {
  .cta__inner { grid-template-columns: 1fr; align-items: start; }
}

.cta__eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-cyan);
  margin-bottom: 24px;
}

.cta__title {
  font-size: clamp(48px, 8vw, 112px);
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 0.92;
  background: linear-gradient(180deg, #FFF 0%, #B5C0D2 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 24px;
}
.cta__title-accent {
  background: linear-gradient(135deg, #00D4FF 0%, #5BC8E5 50%, #4D8AF0 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.cta__lede {
  font-size: 17px;
  line-height: 1.55;
  color: var(--text-2);
  max-width: 50ch;
}

.cta__actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: stretch;
}
.cta__actions .btn { justify-content: center; }

@media (max-width: 720px) {
  .cta__actions { flex-direction: column; }
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  padding-block: clamp(56px, 8vw, 80px) 32px;
  font-size: 14px;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: clamp(28px, 4vw, 56px);
  margin-bottom: clamp(40px, 6vw, 64px);
}
@media (max-width: 720px) {
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }
}
@media (max-width: 480px) {
  .footer__grid { grid-template-columns: 1fr; }
}

.footer__mark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  color: var(--text);
}
.footer__mark span {
  font-weight: 700;
  letter-spacing: 0.18em;
}
.footer__mark img {
  width: 32px;
  height: 32px;
  object-fit: contain;
  filter: drop-shadow(0 0 10px rgba(0, 180, 255, 0.3));
}

.footer__tag {
  color: var(--text-2);
  max-width: 36ch;
  line-height: 1.55;
}

.footer__heading {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 18px;
}

.footer__col ul { display: grid; gap: 10px; }
.footer__col a {
  color: var(--text-2);
  transition: color 0.2s;
}
.footer__col a:hover { color: var(--c-cyan); }

.footer__address {
  font-style: normal;
  color: var(--text-2);
  line-height: 1.6;
  margin-bottom: 14px;
}
.footer__email {
  color: var(--text);
  border-bottom: 1px solid var(--border-strong);
  padding-bottom: 2px;
  transition: all 0.2s;
}
.footer__email:hover {
  color: var(--c-cyan);
  border-color: var(--c-cyan);
}

.footer__bottom {
  padding-top: 28px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  font-size: 12px;
  color: var(--text-3);
  letter-spacing: 0.02em;
}
.footer__confidential {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ============================================================
   REVEAL ANIMATIONS
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
  will-change: opacity, transform;
}
.reveal.is-revealed {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
}