:root {
  color-scheme: dark;
  --ink: #eef6ef;
  --muted: rgba(232, 241, 235, 0.68);
  --quiet: rgba(232, 241, 235, 0.48);
  --line: rgba(210, 241, 232, 0.16);
  --deep: #060909;
  --deep-blue: #0a1016;
  --green: #1f7a62;
  --green-deep: #114e41;
  --mint: #bdeede;
  --mint-bright: #dcfff4;
  --gold: #d39a3d;
  --violet: #c89bff;
  --violet-bright: #b66cff;
  --glass: rgba(255, 255, 255, 0.075);
  --shadow: 0 28px 86px rgba(0, 0, 0, 0.38);
  --radius: 8px;
  --core-size: clamp(9.4rem, 13vw, 11.8rem);
  --orbit-inner: clamp(14rem, 24vw, 20rem);
  --orbit-middle: clamp(18rem, 32vw, 28rem);
  --orbit-outer: clamp(23rem, 43vw, 38rem);
  --engine-scale: 1;
  --breath-speed: 3.5s;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 0;
  scroll-behavior: smooth;
}

body {
  min-width: 0;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 50% 46%, rgba(31, 122, 98, 0.26), transparent 24rem),
    radial-gradient(circle at 50% 34%, rgba(200, 155, 255, 0.14), transparent 34rem),
    linear-gradient(145deg, #050707 0%, var(--deep-blue) 48%, #07100d 100%);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.5;
  overflow-x: hidden;
}

body::before,
body::after {
  position: fixed;
  inset: 0;
  z-index: -2;
  content: "";
  pointer-events: none;
}

body::before {
  opacity: 0.28;
  background:
    linear-gradient(rgba(210, 241, 232, 0.08) 1px, transparent 1px) 0 0 / 72px 72px,
    linear-gradient(90deg, rgba(210, 241, 232, 0.07) 1px, transparent 1px) 0 0 / 72px 72px,
    radial-gradient(circle, rgba(220, 255, 244, 0.18) 0 1px, transparent 1.3px) 18px 22px / 54px 54px;
  mask-image: radial-gradient(circle at 50% 48%, black 0 42%, transparent 78%);
}

body::after {
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(0, 0, 0, 0.62), transparent 16%, transparent 84%, rgba(0, 0, 0, 0.62)),
    linear-gradient(180deg, rgba(0, 0, 0, 0.5), transparent 24%, transparent 74%, rgba(0, 0, 0, 0.62));
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--mint-bright);
  outline-offset: 5px;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: clamp(0.85rem, 2vw, 1.2rem) clamp(1rem, 4vw, 3rem);
  background: linear-gradient(180deg, rgba(6, 9, 9, 0.72), rgba(6, 9, 9, 0.08));
  border-bottom: 1px solid rgba(210, 241, 232, 0.08);
  backdrop-filter: blur(18px);
}

.brand,
.nav,
.hero-actions,
.footer {
  display: flex;
  align-items: center;
}

.brand {
  gap: 0.7rem;
  color: rgba(247, 255, 250, 0.94);
  font-weight: 850;
}

.brand-mark {
  position: relative;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 2.65rem;
  height: 2.65rem;
  overflow: hidden;
  color: var(--mint-bright);
  background:
    radial-gradient(circle at 50% 48%, rgba(220, 255, 244, 0.25), transparent 28%),
    conic-gradient(from 24deg, rgba(220, 255, 244, 0.52), transparent 14%, rgba(211, 154, 61, 0.48) 30%, transparent 46%, rgba(200, 155, 255, 0.42) 65%, transparent 82%, rgba(220, 255, 244, 0.52)),
    linear-gradient(145deg, rgba(6, 16, 15, 0.96), rgba(24, 18, 34, 0.9));
  border: 1px solid rgba(220, 255, 244, 0.36);
  border-radius: 999px;
  box-shadow:
    0 0 28px rgba(31, 122, 98, 0.28),
    0 14px 34px rgba(0, 0, 0, 0.34),
    inset 0 0 18px rgba(220, 255, 244, 0.12);
  font-family:
    "Segoe UI Variable Display", "SF Pro Display", "Aptos Display", Inter,
    ui-sans-serif, system-ui, sans-serif;
  font-size: 0.72rem;
  font-weight: 950;
  letter-spacing: 0;
}

.brand-mark::before,
.brand-mark::after {
  position: absolute;
  content: "";
  pointer-events: none;
}

.brand-mark::before {
  inset: 0.32rem;
  border: 1px solid rgba(220, 255, 244, 0.34);
  border-left-color: rgba(211, 154, 61, 0.52);
  border-bottom-color: transparent;
  border-radius: inherit;
  box-shadow: inset 0 0 16px rgba(31, 122, 98, 0.18);
}

.brand-mark::after {
  left: 0.22rem;
  right: 0.22rem;
  top: 50%;
  height: 1px;
  background:
    linear-gradient(90deg, transparent, rgba(220, 255, 244, 0.65), transparent),
    linear-gradient(90deg, rgba(211, 154, 61, 0.7), transparent 22%, transparent 78%, rgba(200, 155, 255, 0.72));
  box-shadow:
    0 -0.56rem 0 -0.5px rgba(220, 255, 244, 0.22),
    0 0.56rem 0 -0.5px rgba(220, 255, 244, 0.18);
}

.brand-mark span {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 1.55rem;
  height: 1.55rem;
  color: rgba(247, 255, 250, 0.95);
  background: radial-gradient(circle, rgba(6, 14, 14, 0.86), rgba(4, 7, 7, 0.54));
  border: 1px solid rgba(220, 255, 244, 0.18);
  border-radius: 999px;
  text-shadow: 0 0 12px rgba(220, 255, 244, 0.45);
}

.nav {
  justify-content: flex-end;
  gap: clamp(1rem, 3vw, 2.2rem);
  color: rgba(232, 241, 235, 0.66);
  font-size: 0.92rem;
  font-weight: 760;
}

.nav a {
  transition: color 180ms ease;
}

.nav a:hover {
  color: var(--mint-bright);
}

.landing-shell {
  min-height: 100vh;
}

.landing-section {
  position: relative;
  display: grid;
  min-height: 100vh;
  grid-template-rows: auto minmax(31rem, 1fr) auto;
  align-items: center;
  gap: clamp(0.9rem, 2vh, 1.5rem);
  width: min(1440px, calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(5.2rem, 9vh, 6.5rem) 0 clamp(1.3rem, 4vh, 2.5rem);
}

.landing-section::before {
  position: absolute;
  inset: 8% 10% auto;
  height: 72%;
  content: "";
  pointer-events: none;
  background:
    radial-gradient(ellipse at 50% 52%, rgba(220, 255, 244, 0.14), transparent 38%),
    radial-gradient(ellipse at 50% 55%, rgba(182, 108, 255, 0.12), transparent 58%);
  filter: blur(2px);
}

.hero-intro {
  position: relative;
  z-index: 3;
  width: min(770px, 100%);
  margin: 0 auto;
  text-align: center;
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: rgba(220, 255, 244, 0.72);
  font-size: clamp(0.7rem, 1vw, 0.78rem);
  font-weight: 900;
  letter-spacing: 0;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1,
h2,
h3 {
  margin: 0;
  font-family:
    "Segoe UI Variable Display", "SF Pro Display", "Aptos Display", Inter,
    ui-sans-serif, system-ui, sans-serif;
  line-height: 1.03;
  font-weight: 880;
  letter-spacing: 0;
}

h1 {
  max-width: 13ch;
  margin: 0 auto;
  font-size: clamp(2.45rem, 5.6vw, 5.5rem);
  text-wrap: balance;
}

.hero-intro p:last-child {
  max-width: 41rem;
  margin: 1rem auto 0;
  color: var(--muted);
  font-size: clamp(0.98rem, 1.4vw, 1.16rem);
}

.engine-visualization {
  --parallax-x: 0px;
  --parallax-y: 0px;
  position: relative;
  z-index: 2;
  width: min(1180px, 100%);
  min-height: clamp(29rem, 58vh, 43rem);
  margin: 0 auto;
  isolation: isolate;
}

.engine-connections {
  position: absolute;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  overflow: visible;
  pointer-events: none;
}

.connection-path,
.connection-pulse {
  fill: none;
  stroke-linecap: round;
  filter: url("#connectionBlur");
}

.connection-path {
  stroke: url("#channelGlow");
  stroke-width: 1.15;
  opacity: 0.52;
}

.connection-pulse {
  stroke: rgba(220, 255, 244, 0.9);
  stroke-width: 2.2;
  stroke-dasharray: 7 93;
  stroke-dashoffset: 100;
  opacity: 0.48;
  animation: connection-pulse 5.4s linear infinite;
  animation-delay: var(--pulse-delay);
}

.engine-visualization.feature-one-active .connection-one,
.engine-visualization.feature-two-active .connection-two,
.engine-visualization.feature-three-active .connection-three,
.engine-visualization.feature-four-active .connection-four,
.engine-visualization.feature-five-active .connection-five,
.engine-visualization.feature-six-active .connection-six {
  stroke-width: 1.8;
  opacity: 0.9;
}

.atlas-engine {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 5;
  width: var(--orbit-outer);
  height: var(--orbit-outer);
  transform: translate(-50%, -47%) scale(var(--engine-scale));
  transform-style: preserve-3d;
}

.engine-aura,
.engine-pulse-wave,
.engine-orbit,
.engine-core,
.engine-detail-ring,
.engine-title,
.engine-subtitle {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.engine-aura {
  border-radius: 999px;
  pointer-events: none;
}

.aura-one {
  width: 86%;
  height: 86%;
  background:
    radial-gradient(circle, rgba(220, 255, 244, 0.18), rgba(31, 122, 98, 0.1) 35%, transparent 68%);
  filter: blur(8px);
  animation: aura-breathe 6.6s ease-in-out infinite;
}

.aura-two {
  width: 108%;
  height: 78%;
  background:
    radial-gradient(ellipse, rgba(200, 155, 255, 0.13), rgba(31, 122, 98, 0.08) 42%, transparent 72%);
  filter: blur(16px);
  animation: aura-wander 9s ease-in-out infinite;
}

.engine-pulse-wave {
  width: var(--core-size);
  height: var(--core-size);
  border: 1px solid rgba(220, 255, 244, 0.32);
  border-radius: 999px;
  opacity: 0;
  animation: pulse-wave 5.2s ease-out infinite;
}

.wave-two {
  animation-delay: 2.6s;
}

.engine-orbit {
  pointer-events: none;
  border-radius: 999px;
  transform-style: preserve-3d;
}

.engine-orbit::before,
.engine-orbit::after {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  content: "";
}

.engine-orbit-one {
  width: var(--orbit-inner);
  height: calc(var(--orbit-inner) * 0.78);
  z-index: 8;
  animation: orbit-clockwise 18s linear infinite;
}

.engine-orbit-one::before {
  border: 1px solid rgba(220, 255, 244, 0.36);
  border-left-color: transparent;
  border-bottom-color: rgba(200, 155, 255, 0.32);
  box-shadow: 0 0 18px rgba(31, 122, 98, 0.14);
}

.engine-orbit-one::after {
  inset: 11%;
  border-top: 1px dashed rgba(220, 255, 244, 0.28);
  border-right: 1px dashed rgba(220, 255, 244, 0.16);
}

.engine-orbit-two {
  width: var(--orbit-middle);
  height: calc(var(--orbit-middle) * 0.58);
  z-index: 4;
  transform: translate(-50%, -50%) rotate(-9deg);
  animation: orbit-counter 29s linear infinite;
}

.engine-orbit-two::before {
  border: 1px solid rgba(200, 155, 255, 0.28);
  border-top-color: transparent;
  border-right-color: rgba(220, 255, 244, 0.2);
}

.engine-orbit-two::after {
  inset: 4%;
  border: 1px dotted rgba(220, 255, 244, 0.18);
  clip-path: polygon(0 0, 76% 0, 62% 100%, 0 100%);
}

.engine-orbit-three {
  width: var(--orbit-outer);
  height: calc(var(--orbit-outer) * 0.46);
  z-index: 2;
  transform: translate(-50%, -50%) rotate(14deg);
  animation: orbit-clockwise-wide 41s linear infinite;
}

.engine-orbit-three::before {
  border: 1px solid rgba(220, 255, 244, 0.13);
  border-right-color: transparent;
  border-bottom-color: rgba(211, 154, 61, 0.22);
}

.engine-orbit-three::after {
  inset: 9%;
  border-top: 2px solid rgba(220, 255, 244, 0.18);
  border-left: 1px solid rgba(200, 155, 255, 0.16);
  clip-path: polygon(7% 0, 100% 0, 88% 48%, 9% 100%, 0 100%, 0 0);
}

.orbit-particle,
.orbit-signal {
  position: absolute;
  display: block;
  border-radius: 999px;
}

.orbit-particle {
  width: 0.5rem;
  height: 0.5rem;
  background: var(--mint-bright);
  box-shadow:
    0 0 12px rgba(220, 255, 244, 0.9),
    0 0 28px rgba(31, 122, 98, 0.55);
}

.particle-one { top: -0.18rem; left: 54%; }
.particle-two { right: 6%; top: 55%; width: 0.34rem; height: 0.34rem; opacity: 0.8; }
.particle-three { left: 12%; top: 19%; width: 0.42rem; height: 0.42rem; background: var(--violet); }
.particle-four { right: 23%; bottom: -0.15rem; width: 0.62rem; height: 0.62rem; }
.particle-five { left: 27%; bottom: 5%; width: 0.35rem; height: 0.35rem; background: var(--gold); }
.particle-six { right: 11%; top: 22%; width: 0.45rem; height: 0.45rem; opacity: 0.72; }

.orbit-signal {
  top: 50%;
  left: 50%;
  width: 1.2rem;
  height: 0.16rem;
  background: linear-gradient(90deg, transparent, rgba(220, 255, 244, 0.95), transparent);
  box-shadow: 0 0 18px rgba(220, 255, 244, 0.7);
  transform-origin: -5.5rem center;
}

.signal-one {
  animation: signal-run 4.8s linear infinite;
}

.signal-two {
  animation: signal-run 7.2s linear infinite reverse;
}

.engine-detail-ring {
  pointer-events: none;
}

.ring-back {
  z-index: 3;
  width: calc(var(--core-size) * 1.82);
  height: calc(var(--core-size) * 1.82);
  border-radius: 999px;
  color: rgba(220, 255, 244, 0.36);
  font-size: 0.51rem;
  font-weight: 800;
}

.ring-back::before {
  position: absolute;
  inset: 0;
  content: "";
  border-radius: inherit;
  border: 1px solid rgba(220, 255, 244, 0.12);
  background:
    conic-gradient(from 0deg, transparent 0 8deg, rgba(220, 255, 244, 0.22) 8deg 9deg, transparent 9deg 32deg),
    radial-gradient(circle, transparent 57%, rgba(220, 255, 244, 0.08) 58%, transparent 60%);
  animation: slow-reverse 34s linear infinite;
}

.ring-back span {
  position: absolute;
  white-space: nowrap;
}

.ring-back span:nth-child(1) { left: 47%; top: 0; transform: translateX(-50%); }
.ring-back span:nth-child(2) { right: -1.2rem; top: 45%; transform: rotate(82deg); }
.ring-back span:nth-child(3) { bottom: 0.35rem; left: 38%; }
.ring-back span:nth-child(4) { left: -1.6rem; top: 48%; transform: rotate(-80deg); }

.ring-front {
  z-index: 9;
  width: calc(var(--core-size) * 1.36);
  height: calc(var(--core-size) * 1.36);
  border-radius: 999px;
  animation: orbit-counter 22s linear infinite;
}

.ring-front i {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 1px;
  height: 0.9rem;
  background: rgba(220, 255, 244, 0.26);
  transform-origin: 0 calc(var(--core-size) * -0.68);
}

.ring-front i:nth-child(1) { transform: rotate(0deg) translateY(calc(var(--core-size) * 0.68)); }
.ring-front i:nth-child(2) { transform: rotate(30deg) translateY(calc(var(--core-size) * 0.68)); }
.ring-front i:nth-child(3) { transform: rotate(60deg) translateY(calc(var(--core-size) * 0.68)); }
.ring-front i:nth-child(4) { transform: rotate(90deg) translateY(calc(var(--core-size) * 0.68)); }
.ring-front i:nth-child(5) { transform: rotate(120deg) translateY(calc(var(--core-size) * 0.68)); }
.ring-front i:nth-child(6) { transform: rotate(150deg) translateY(calc(var(--core-size) * 0.68)); }
.ring-front i:nth-child(7) { transform: rotate(180deg) translateY(calc(var(--core-size) * 0.68)); }
.ring-front i:nth-child(8) { transform: rotate(210deg) translateY(calc(var(--core-size) * 0.68)); }
.ring-front i:nth-child(9) { transform: rotate(240deg) translateY(calc(var(--core-size) * 0.68)); }
.ring-front i:nth-child(10) { transform: rotate(270deg) translateY(calc(var(--core-size) * 0.68)); }
.ring-front i:nth-child(11) { transform: rotate(300deg) translateY(calc(var(--core-size) * 0.68)); }
.ring-front i:nth-child(12) { transform: rotate(330deg) translateY(calc(var(--core-size) * 0.68)); }

.engine-core {
  z-index: 7;
  display: grid;
  place-items: center;
  width: var(--core-size);
  height: var(--core-size);
  overflow: hidden;
  border: 1px solid rgba(220, 255, 244, 0.58);
  border-radius: 999px;
  background:
    radial-gradient(circle at 50% 50%, rgba(220, 255, 244, 0.2), transparent 20%),
    radial-gradient(circle at 48% 38%, rgba(200, 155, 255, 0.19), transparent 37%),
    linear-gradient(145deg, rgba(8, 14, 16, 0.96), rgba(14, 25, 23, 0.74));
  box-shadow:
    inset 0 0 24px rgba(220, 255, 244, 0.16),
    inset 0 -18px 42px rgba(0, 0, 0, 0.48),
    0 0 24px rgba(220, 255, 244, 0.22),
    0 0 78px rgba(31, 122, 98, 0.34);
  animation: core-breathe var(--breath-speed) ease-in-out infinite;
}

.engine-core::before,
.engine-core::after {
  position: absolute;
  content: "";
  border-radius: inherit;
}

.engine-core::before {
  inset: 0.75rem;
  border: 1px solid rgba(220, 255, 244, 0.22);
  box-shadow: inset 0 0 28px rgba(200, 155, 255, 0.1);
}

.engine-core::after {
  inset: 1.45rem;
  border: 1px dashed rgba(220, 255, 244, 0.18);
  animation: slow-spin 18s linear infinite;
}

.core-noise {
  position: absolute;
  inset: 0;
  opacity: 0.14;
  background:
    radial-gradient(circle at 12% 28%, white 0 1px, transparent 1.2px),
    radial-gradient(circle at 70% 32%, white 0 1px, transparent 1.1px),
    radial-gradient(circle at 35% 77%, white 0 1px, transparent 1.1px),
    radial-gradient(circle at 83% 68%, white 0 1px, transparent 1.1px);
  background-size: 42px 52px;
}

.core-ring {
  position: absolute;
  border-radius: inherit;
  pointer-events: none;
}

.core-ring-one {
  inset: 0.45rem;
  border: 1px solid rgba(220, 255, 244, 0.3);
}

.core-ring-two {
  inset: 2.25rem;
  border: 1px solid rgba(200, 155, 255, 0.22);
}

.core-ring-three {
  inset: 3.55rem;
  border: 1px dotted rgba(220, 255, 244, 0.22);
}

.core-sweep {
  position: absolute;
  inset: -28%;
  background: conic-gradient(from 0deg, transparent 0 72%, rgba(220, 255, 244, 0.24) 78%, transparent 84% 100%);
  animation: slow-spin 8.5s linear infinite;
}

.engine-monogram {
  position: relative;
  z-index: 3;
  width: 48%;
  height: 48%;
  overflow: visible;
  filter: drop-shadow(0 0 14px rgba(220, 255, 244, 0.45));
}

.engine-monogram path:first-child {
  fill: rgba(220, 255, 244, 0.88);
  stroke: rgba(255, 255, 255, 0.24);
  stroke-width: 1.2;
}

.engine-monogram path:nth-child(2) {
  fill: rgba(8, 16, 16, 0.98);
}

.engine-monogram path:last-child {
  fill: none;
  stroke: rgba(211, 154, 61, 0.76);
  stroke-width: 2.3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.core-light {
  position: absolute;
  z-index: 4;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 999px;
  background: #ffffff;
  box-shadow: 0 0 18px rgba(220, 255, 244, 0.9);
}

.engine-title {
  top: calc(50% + (var(--core-size) * 0.86));
  z-index: 11;
  color: rgba(247, 255, 250, 0.92);
  font-size: clamp(0.78rem, 1.15vw, 0.94rem);
  font-weight: 900;
  letter-spacing: 0.18em;
  text-align: center;
  white-space: nowrap;
}

.engine-subtitle {
  top: calc(50% + (var(--core-size) * 1.03));
  z-index: 11;
  width: max-content;
  max-width: 18rem;
  color: rgba(232, 241, 235, 0.6);
  font-size: clamp(0.78rem, 1vw, 0.9rem);
  text-align: center;
}

.engine-feature {
  position: absolute;
  z-index: 8;
  display: grid;
  width: 10.8rem;
  justify-items: center;
  gap: 0.42rem;
  padding: 0;
  color: rgba(247, 255, 250, 0.86);
  background: transparent;
  border: 0;
  font: inherit;
  text-align: center;
  cursor: pointer;
  animation: feature-float var(--float-speed, 6s) ease-in-out infinite;
  animation-delay: var(--float-delay, 0s);
}

.feature-one { left: 5%; top: 15%; --float-speed: 6.4s; --float-delay: -1s; }
.feature-two { right: 6%; top: 15%; --float-speed: 7s; --float-delay: -2.8s; }
.feature-three { left: 0; top: 44%; --float-speed: 7.4s; --float-delay: -4s; }
.feature-four { right: 0; top: 44%; --float-speed: 6.8s; --float-delay: -2s; }
.feature-five { left: 10%; bottom: 9%; --float-speed: 7.8s; --float-delay: -5s; }
.feature-six { right: 10%; bottom: 9%; --float-speed: 6.2s; --float-delay: -3s; }

.feature-icon {
  position: relative;
  display: grid;
  place-items: center;
  width: 3.8rem;
  height: 3.8rem;
  color: var(--mint-bright);
  border: 1px solid rgba(220, 255, 244, 0.22);
  border-radius: 999px;
  background:
    radial-gradient(circle at 50% 42%, rgba(220, 255, 244, 0.16), transparent 48%),
    rgba(255, 255, 255, 0.04);
  box-shadow:
    0 0 26px rgba(31, 122, 98, 0.2),
    inset 0 0 18px rgba(220, 255, 244, 0.08);
  backdrop-filter: blur(12px);
  transition: transform 200ms ease, box-shadow 200ms ease, border-color 200ms ease;
}

.feature-icon::before {
  position: absolute;
  inset: -0.75rem;
  z-index: -1;
  content: "";
  border-radius: inherit;
  background: radial-gradient(circle, rgba(31, 122, 98, 0.18), transparent 68%);
}

.feature-icon svg {
  width: 1.85rem;
  height: 1.85rem;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2.2;
}

.feature-label {
  color: rgba(247, 255, 250, 0.84);
  font-size: 0.92rem;
  font-weight: 850;
  line-height: 1.12;
  transition: color 200ms ease, opacity 200ms ease;
}

.feature-note {
  color: rgba(232, 241, 235, 0.42);
  font-size: 0.72rem;
  font-weight: 700;
  line-height: 1.1;
}

.engine-feature:hover .feature-icon,
.engine-feature:focus-visible .feature-icon {
  border-color: rgba(220, 255, 244, 0.58);
  box-shadow:
    0 0 34px rgba(220, 255, 244, 0.24),
    0 0 70px rgba(31, 122, 98, 0.28),
    inset 0 0 20px rgba(220, 255, 244, 0.14);
  transform: scale(1.08);
}

.engine-feature:hover .feature-label,
.engine-feature:focus-visible .feature-label {
  color: var(--mint-bright);
}

.hero-actions {
  position: relative;
  z-index: 5;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.button {
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  padding: 0.82rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-weight: 850;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, color 180ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button.primary {
  color: #06100d;
  background: linear-gradient(135deg, var(--mint-bright), rgba(211, 154, 61, 0.92));
  border-color: rgba(220, 255, 244, 0.5);
  box-shadow: 0 16px 42px rgba(31, 122, 98, 0.24);
}

.button.secondary {
  color: rgba(247, 255, 250, 0.76);
  background: rgba(255, 255, 255, 0.045);
  border-color: rgba(220, 255, 244, 0.2);
}

.button.secondary:hover {
  color: var(--mint-bright);
  border-color: rgba(220, 255, 244, 0.42);
}

@keyframes core-breathe {
  0%,
  100% {
    transform: translate(-50%, -50%) scale(0.97);
    box-shadow:
      inset 0 0 24px rgba(220, 255, 244, 0.13),
      inset 0 -18px 42px rgba(0, 0, 0, 0.48),
      0 0 20px rgba(220, 255, 244, 0.18),
      0 0 62px rgba(31, 122, 98, 0.26);
  }

  50% {
    transform: translate(-50%, -50%) scale(1.03);
    box-shadow:
      inset 0 0 31px rgba(220, 255, 244, 0.22),
      inset 0 -18px 42px rgba(0, 0, 0, 0.48),
      0 0 32px rgba(220, 255, 244, 0.32),
      0 0 92px rgba(31, 122, 98, 0.42);
  }
}

@keyframes aura-breathe {
  0%,
  100% { transform: translate(-50%, -50%) scale(0.94); opacity: 0.72; }
  50% { transform: translate(-50%, -50%) scale(1.08); opacity: 1; }
}

@keyframes aura-wander {
  0%,
  100% { transform: translate(-50%, -50%) rotate(-5deg) scale(0.96); opacity: 0.5; }
  50% { transform: translate(calc(-50% + var(--parallax-x)), calc(-50% + var(--parallax-y))) rotate(7deg) scale(1.04); opacity: 0.82; }
}

@keyframes pulse-wave {
  0% { transform: translate(-50%, -50%) scale(0.9); opacity: 0; }
  12% { opacity: 0.34; }
  78% { opacity: 0; }
  100% { transform: translate(-50%, -50%) scale(2.06); opacity: 0; }
}

@keyframes orbit-clockwise {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes orbit-clockwise-wide {
  from { transform: translate(-50%, -50%) rotate(14deg); }
  to { transform: translate(-50%, -50%) rotate(374deg); }
}

@keyframes orbit-counter {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to { transform: translate(-50%, -50%) rotate(-360deg); }
}

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

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

@keyframes signal-run {
  from { transform: rotate(0deg) translateX(5.6rem); opacity: 0; }
  12%,
  72% { opacity: 0.9; }
  to { transform: rotate(360deg) translateX(5.6rem); opacity: 0; }
}

@keyframes feature-float {
  0%,
  100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

@keyframes connection-pulse {
  to { stroke-dashoffset: 0; }
}

/* Shared detail-page support for the existing subpages. */
main:not(.landing-shell) {
  width: min(1160px, calc(100% - 2rem));
  margin: 0 auto;
  padding-top: 5.5rem;
}

.detail-page {
  color-scheme: dark;
}

.detail-page .site-header {
  position: sticky;
}

.detail-page h1 {
  margin: 0;
}

.lead,
.detail-page p {
  color: var(--muted);
}

.engines-detail-hero,
.case-detail-hero {
  display: flex;
  min-height: 50vh;
  flex-direction: column;
  justify-content: center;
  padding: clamp(3rem, 9vw, 7rem) 0 clamp(2rem, 5vw, 4rem);
  text-align: center;
}

.engines-detail-hero h1,
.case-detail-hero h1 {
  max-width: 14ch;
}

.lead {
  max-width: 46rem;
  margin: 1.2rem auto 0;
  font-size: 1.08rem;
}

.engine-detail-grid,
.case-detail-grid,
.engine-idea-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-bottom: clamp(2rem, 6vw, 5rem);
}

.engine-detail-grid article,
.case-detail-grid article,
.engine-idea-grid article,
.case-coming-soon,
.engine-ideas {
  padding: clamp(1rem, 3vw, 1.35rem);
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.engine-detail-grid span,
.case-detail-grid span,
.engine-idea-grid span {
  display: inline-flex;
  margin-bottom: 0.8rem;
  color: var(--mint);
  font-size: 0.78rem;
  font-weight: 900;
}

.engine-detail-grid h2,
.case-detail-grid h2,
.engine-idea-grid h3,
.case-coming-soon h2,
.engine-ideas h2 {
  max-width: 100%;
  font-size: clamp(1.25rem, 2.3vw, 2rem);
}

.engine-ideas {
  margin-bottom: clamp(2rem, 6vw, 5rem);
}

.engine-ideas-heading {
  max-width: 720px;
  margin: 0 auto 1.5rem;
  text-align: center;
}

.footer {
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
  width: min(1160px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.5rem 0 2rem;
  color: var(--quiet);
  border-top: 1px solid var(--line);
  text-align: center;
}

@media (max-width: 1120px) {
  :root {
    --engine-scale: 0.88;
    --orbit-outer: clamp(21rem, 49vw, 34rem);
  }

  .landing-section {
    width: min(100% - 1.4rem, 1080px);
  }

  .engine-visualization {
    min-height: 35rem;
  }

  .feature-one { left: 2%; }
  .feature-two { right: 2%; }
  .feature-three { left: -1%; }
  .feature-four { right: -1%; }
  .feature-five { left: 4%; }
  .feature-six { right: 4%; }
}

@media (max-width: 820px) {
  .site-header {
    position: absolute;
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    width: 100%;
    justify-content: flex-start;
  }

  .landing-section {
    grid-template-rows: auto auto auto;
    gap: 1.4rem;
    min-height: 100vh;
    padding-top: 8.5rem;
  }

  .engine-visualization {
    display: grid;
    min-height: 46rem;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.95rem 0.55rem;
    align-items: end;
    padding-top: 22rem;
  }

  .engine-connections {
    display: none;
  }

  .atlas-engine {
    top: 10.4rem;
    width: min(27rem, 100vw);
    height: min(27rem, 100vw);
    transform: translate(-50%, -50%) scale(0.76);
  }

  .engine-feature {
    position: relative;
    inset: auto;
    width: auto;
    min-height: 7.4rem;
    align-content: start;
    animation: none;
  }

  .feature-icon {
    width: 3.4rem;
    height: 3.4rem;
  }

  .feature-note {
    display: none;
  }

  .hero-actions {
    padding-bottom: 0.5rem;
  }

  .engine-detail-grid,
  .case-detail-grid,
  .engine-idea-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 520px) {
  :root {
    --core-size: 8.9rem;
  }

  body::before {
    background-size: 54px 54px, 54px 54px, 42px 42px;
  }

  .landing-section {
    width: min(100% - 1rem, 480px);
  }

  h1 {
    font-size: clamp(2.25rem, 12vw, 3.25rem);
  }

  .hero-intro p:last-child {
    font-size: 0.98rem;
  }

  .engine-visualization {
    min-height: 43rem;
    padding-top: 19.8rem;
  }

  .atlas-engine {
    top: 9.3rem;
    transform: translate(-50%, -50%) scale(0.62);
  }

  .engine-title {
    letter-spacing: 0.13em;
  }

  .engine-feature {
    min-height: 6.9rem;
  }

  .feature-label {
    max-width: 8.8rem;
    font-size: 0.84rem;
  }

  .button {
    width: min(100%, 20rem);
  }

  main:not(.landing-shell) {
    width: min(100% - 1rem, 1160px);
  }

  .engine-detail-grid,
  .case-detail-grid,
  .engine-idea-grid {
    grid-template-columns: 1fr;
  }
}

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

.connection-pulse,
  .orbit-signal {
    opacity: 0;
  }
}

/* Rebuilt second page: the deeper Atlas Engines system content. */
.systems-page .site-header {
  position: sticky;
}

.systems-page {
  background:
    linear-gradient(180deg, rgba(3, 6, 6, 0.78), rgba(3, 6, 6, 0.92)),
    radial-gradient(circle at 18% 8%, rgba(200, 155, 255, 0.16), transparent 28rem),
    radial-gradient(circle at 82% 18%, rgba(31, 122, 98, 0.2), transparent 34rem),
    url("assets/atlas-digital-engine-room.png") center top / cover fixed no-repeat,
    #050707;
}

.systems-page::before {
  opacity: 0.2;
}

.systems-shell {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding-top: clamp(2rem, 5vw, 4rem);
}

.systems-hero {
  position: relative;
  display: grid;
  min-height: 72vh;
  align-content: center;
  justify-items: center;
  padding: clamp(3rem, 8vw, 7rem) 0;
  overflow: hidden;
  isolation: isolate;
  text-align: center;
}

.systems-hero::before,
.systems-hero::after {
  position: absolute;
  inset: 0;
  z-index: -2;
  content: "";
  pointer-events: none;
}

.systems-hero::before {
  left: calc(50% - 50vw);
  right: calc(50% - 50vw);
  background:
    linear-gradient(90deg, rgba(3, 6, 6, 0.9) 0%, rgba(3, 6, 6, 0.44) 48%, rgba(3, 6, 6, 0.72) 100%),
    url("assets/atlas-office-implied-woman.png") center / cover no-repeat;
  transform: scale(1.02);
  animation: systems-photo-drift 18s ease-in-out infinite alternate;
}

.systems-hero::after {
  left: calc(50% - 50vw);
  right: calc(50% - 50vw);
  z-index: -1;
  background:
    radial-gradient(circle at 50% 42%, rgba(220, 255, 244, 0.12), transparent 20rem),
    linear-gradient(180deg, transparent 64%, rgba(5, 7, 7, 0.95));
}

.systems-hero > * {
  position: relative;
  z-index: 1;
}

.systems-hero h1 {
  max-width: 14ch;
  text-shadow: 0 26px 70px rgba(0, 0, 0, 0.72);
}

.systems-section {
  position: relative;
  margin: clamp(1rem, 3vw, 2rem) 0;
  padding: clamp(2rem, 5vw, 4rem);
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 0%, rgba(220, 255, 244, 0.08), transparent 22rem),
    rgba(255, 255, 255, 0.055);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow:
    0 34px 110px rgba(0, 0, 0, 0.44),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(18px);
  transition: transform 260ms ease, border-color 260ms ease, box-shadow 260ms ease;
}

.systems-section::before {
  position: absolute;
  inset: 0;
  z-index: 0;
  content: "";
  pointer-events: none;
  opacity: 0.18;
  background:
    radial-gradient(circle, rgba(220, 255, 244, 0.36) 0 1px, transparent 1.4px) 0 0 / 54px 54px;
  mask-image: linear-gradient(180deg, black, transparent 78%);
}

.systems-section::after {
  position: absolute;
  inset: 0;
  z-index: 0;
  content: "";
  pointer-events: none;
  opacity: 0.4;
  background:
    linear-gradient(90deg, rgba(4, 7, 7, 0.92), rgba(4, 7, 7, 0.54) 52%, rgba(4, 7, 7, 0.92)),
    var(--section-photo);
  background-size: cover;
  background-position: center;
  transform: scale(1.02);
  transition: opacity 280ms ease, transform 600ms ease;
}

.systems-section:hover {
  border-color: rgba(220, 255, 244, 0.28);
  box-shadow:
    0 42px 128px rgba(0, 0, 0, 0.52),
    0 0 58px rgba(31, 122, 98, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.12);
  transform: translateY(-2px);
}

.systems-section:hover::after {
  opacity: 0.54;
  transform: scale(1.055);
}

.photo-office {
  --section-photo: url("assets/atlas-office-implied-woman.png");
}

.photo-engine {
  --section-photo: url("assets/atlas-digital-engine-room.png");
}

.systems-section > * {
  position: relative;
  z-index: 1;
}

.split-section,
.audit-section,
.integrations-section,
.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(1.5rem, 5vw, 3rem);
  align-items: center;
}

.section-heading {
  width: min(760px, 100%);
  margin: 0 auto clamp(1.5rem, 4vw, 2.5rem);
  text-align: center;
}

.section-heading h2,
.systems-section h2 {
  max-width: 15ch;
}

.section-heading h2,
.section-heading p,
.systems-section h2,
.systems-section p {
  margin-left: auto;
  margin-right: auto;
}

.section-heading p,
.copy-stack p,
.systems-section p {
  color: var(--muted);
}

.copy-stack {
  display: grid;
  gap: 1rem;
}

.copy-stack p {
  max-width: 44rem;
  margin-top: 0;
  margin-bottom: 0;
  font-size: 1.04rem;
}

.problem-grid,
.service-grid,
.proof-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
}

.service-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.proof-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.problem-grid article,
.service-grid article,
.proof-grid article,
.workflow article {
  min-height: 13rem;
  padding: 1.1rem;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.13), rgba(255, 255, 255, 0.05));
  border: 1px solid rgba(220, 255, 244, 0.18);
  border-radius: var(--radius);
  box-shadow:
    0 20px 54px rgba(0, 0, 0, 0.32),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(18px);
  transition: transform 220ms ease, border-color 220ms ease, box-shadow 220ms ease, background 220ms ease;
}

.problem-grid article:hover,
.service-grid article:hover,
.proof-grid article:hover,
.workflow article:hover {
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.07));
  border-color: rgba(220, 255, 244, 0.36);
  box-shadow:
    0 30px 72px rgba(0, 0, 0, 0.42),
    0 0 34px rgba(31, 122, 98, 0.14),
    inset 0 1px 0 rgba(255, 255, 255, 0.16);
  transform: translateY(-6px);
}

.problem-grid span,
.service-grid span,
.workflow span {
  display: inline-grid;
  place-items: center;
  width: 2.35rem;
  height: 2.35rem;
  margin-bottom: 1rem;
  color: var(--mint-bright);
  border: 1px solid rgba(220, 255, 244, 0.32);
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 950;
}

.problem-grid h3,
.service-grid h3,
.workflow h3 {
  margin-bottom: 0.5rem;
  font-size: 1.02rem;
}

.problem-grid p,
.service-grid p,
.workflow p,
.proof-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.audit-tool {
  display: grid;
  gap: 1rem;
  padding: clamp(1rem, 3vw, 1.5rem);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0.06));
  border: 1px solid rgba(220, 255, 244, 0.24);
  border-radius: var(--radius);
  box-shadow:
    0 28px 80px rgba(0, 0, 0, 0.36),
    inset 0 1px 0 rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(20px);
}

.audit-tool label {
  display: grid;
  gap: 0.5rem;
  color: rgba(247, 255, 250, 0.82);
  font-weight: 800;
}

.audit-tool select {
  width: 100%;
  min-height: 3rem;
  padding: 0.75rem 0.85rem;
  color: var(--ink);
  background: rgba(6, 12, 12, 0.94);
  border: 1px solid rgba(220, 255, 244, 0.2);
  border-radius: var(--radius);
  font: inherit;
}

.audit-result {
  display: block;
  min-height: 5rem;
  padding: 1rem;
  color: var(--muted);
  background: rgba(6, 12, 12, 0.58);
  border: 1px solid rgba(220, 255, 244, 0.14);
  border-radius: var(--radius);
}

.audit-result.is-active {
  color: var(--mint-bright);
  border-color: rgba(220, 255, 244, 0.38);
}

.integration-grid,
.traffic-flow {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.7rem;
}

.traffic-flow {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.integration-grid span,
.traffic-flow span {
  display: grid;
  min-height: 3.2rem;
  place-items: center;
  padding: 0.75rem;
  color: rgba(247, 255, 250, 0.8);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(220, 255, 244, 0.18);
  border-radius: 999px;
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.28);
  text-align: center;
  font-weight: 800;
  transition: transform 200ms ease, border-color 200ms ease, box-shadow 200ms ease, color 200ms ease;
}

.integration-grid span:hover,
.traffic-flow span:hover {
  color: var(--mint-bright);
  border-color: rgba(220, 255, 244, 0.36);
  box-shadow: 0 20px 46px rgba(0, 0, 0, 0.36), 0 0 26px rgba(31, 122, 98, 0.14);
  transform: translateY(-4px);
}

.proof-grid strong {
  display: block;
  margin-bottom: 0.7rem;
  color: var(--mint-bright);
  font-size: clamp(2rem, 4vw, 3.6rem);
  line-height: 0.95;
}

.workflow {
  display: grid;
  grid-template-columns: repeat(6, minmax(14rem, 1fr));
  gap: 0.9rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
  scroll-snap-type: x proximity;
}

.workflow article {
  min-height: 14rem;
  scroll-snap-align: start;
}

.case-section,
.contact-section {
  background:
    radial-gradient(circle at 20% 20%, rgba(200, 155, 255, 0.12), transparent 22rem),
    radial-gradient(circle at 80% 30%, rgba(31, 122, 98, 0.12), transparent 24rem),
    rgba(255, 255, 255, 0.06);
}

.case-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.case-section p,
.contact-section p {
  max-width: 42rem;
}

@media (max-width: 980px) {
  .split-section,
  .audit-section,
  .integrations-section,
  .contact-section,
  .case-section {
    grid-template-columns: 1fr;
  }

  .case-section {
    align-items: flex-start;
    flex-direction: column;
  }

  .problem-grid,
  .service-grid,
  .proof-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .traffic-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .systems-shell {
    width: min(100% - 1rem, 1180px);
    padding-top: 7rem;
  }

  .systems-section {
    padding: 1.25rem;
  }

  .problem-grid,
  .service-grid,
  .proof-grid,
  .integration-grid,
  .traffic-flow {
    grid-template-columns: 1fr;
  }
}

.systems-page .button {
  box-shadow:
    0 16px 36px rgba(0, 0, 0, 0.34),
    inset 0 1px 0 rgba(255, 255, 255, 0.18);
}

.systems-page .button.primary {
  box-shadow:
    0 20px 52px rgba(31, 122, 98, 0.34),
    0 0 34px rgba(220, 255, 244, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.32);
}

.systems-page .button:hover {
  box-shadow:
    0 26px 64px rgba(0, 0, 0, 0.42),
    0 0 38px rgba(31, 122, 98, 0.18),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
  transform: translateY(-4px);
}

@keyframes systems-photo-drift {
  from {
    transform: scale(1.02) translate3d(-0.4rem, 0, 0);
  }

  to {
    transform: scale(1.08) translate3d(0.4rem, -0.35rem, 0);
  }
}