/* ==========================================================================
   EVOSOL — Cinematic 2.5D scroll experience
   Colours sampled directly from the official logo files:
     slate #304953   green #7AC94C
   No WebGL. No animation library. One rAF loop writes --p per scene;
   every transform below is derived from it in CSS.
   ========================================================================== */

/* --- typed custom properties (progressive enhancement) ------------------- */
@property --p  { syntax: '<number>'; initial-value: 0; inherits: true; }
@property --pv { syntax: '<number>'; initial-value: 0; inherits: true; }

/* ==========================================================================
   1. TOKENS
   ========================================================================== */
:root {
  /* brand */
  --slate:        #304953;
  --slate-600:    #263b44;
  --slate-800:    #16262d;
  --green:        #7AC94C;
  --green-600:    #63ac3a;   /* dark backgrounds only */
  --green-700:    #437726;   /* accessible green for text on light */
  --green-100:    #d8f0c6;
  --ink:          #081014;
  --ink-2:        #0b161b;
  --offwhite:     #F7F9F9;
  --white:        #FFFFFF;

  /* derived surfaces */
  --line-dark:    color-mix(in srgb, var(--offwhite) 14%, transparent);
  --line-light:   color-mix(in srgb, var(--slate) 16%, transparent);
  --text-dim:     color-mix(in srgb, var(--offwhite) 62%, transparent);
  --text-dimmer:  color-mix(in srgb, var(--offwhite) 52%, transparent);
  --glass-dark:   color-mix(in srgb, var(--offwhite) 5%, transparent);

  /* type */
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Inter, Roboto,
          "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas,
          "Liberation Mono", monospace;

  /* motion */
  --amp: 26vh;                    /* global parallax amplitude              */
  --ease: cubic-bezier(.22,.61,.28,1);
  --ease-out: cubic-bezier(.16,1,.3,1);
  --dur: .9s;

  /* layout */
  --wrap: 1240px;
  --gut: clamp(20px, 5vw, 72px);
  --nav-h: 74px;

  color-scheme: dark;
}

/* ==========================================================================
   2. RESET / BASE
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--ink);
  color: var(--offwhite);
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg, picture { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, p { margin: 0; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
.svg-defs { position: absolute; width: 0; height: 0; overflow: hidden; }

:where(a, button, [tabindex]):focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 4px;
  border-radius: 4px;
}

.skip-link {
  position: fixed; top: 10px; left: 10px; z-index: 999;
  padding: 12px 20px; background: var(--green); color: var(--ink);
  font-weight: 700; border-radius: 8px; transform: translateY(-160%);
  transition: transform .3s var(--ease);
}
.skip-link:focus-visible { transform: none; }

.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gut); }

/* ==========================================================================
   3. TYPOGRAPHY
   ========================================================================== */
.display {
  font-weight: 700;
  letter-spacing: -.035em;
  line-height: 1.02;
  text-wrap: balance;
}
.display--xl { font-size: clamp(2.6rem, 7.2vw, 6.2rem); }
.display--lg { font-size: clamp(2.1rem, 5.4vw, 4.6rem); }
.display--md { font-size: clamp(1.9rem, 4.4vw, 3.6rem); }
.display em  { font-style: normal; color: var(--green); }

.lede {
  font-size: clamp(1.02rem, 1.5vw, 1.32rem);
  line-height: 1.62;
  color: var(--text-dim);
  max-width: 56ch;
}
.body {
  font-size: clamp(.98rem, 1.15vw, 1.1rem);
  line-height: 1.68;
  color: var(--text-dim);
  max-width: 46ch;
}
.body--wide { max-width: 62ch; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  font-family: var(--mono);
  font-size: .74rem; letter-spacing: .22em; text-transform: uppercase;
  line-height: 1.6; color: var(--green);
  margin-bottom: clamp(18px, 2.4vw, 30px);
}
.eyebrow .idx {
  font-weight: 700;
  padding: 4px 9px; border-radius: 4px;
  background: color-mix(in srgb, var(--green) 16%, transparent);
  border: 1px solid color-mix(in srgb, var(--green) 34%, transparent);
}
.eyebrow .dot {
  width: 7px; height: 7px; border-radius: 50%; background: var(--green);
  box-shadow: 0 0 0 0 color-mix(in srgb, var(--green) 60%, transparent);
  animation: ping 2.6s var(--ease) infinite;
}
@keyframes ping {
  0%   { box-shadow: 0 0 0 0 color-mix(in srgb, var(--green) 55%, transparent); }
  70%  { box-shadow: 0 0 0 12px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

/* --- split text ---------------------------------------------------------- */
.ln {
  display: block; overflow: hidden;
  padding-bottom: .1em; margin-bottom: -.1em;
}
.wd {
  display: inline-block;
  transform: translateY(112%) rotate(3deg);
  opacity: 0;
  transition:
    transform 1s var(--ease-out) calc(var(--i) * 42ms + var(--l) * 90ms),
    opacity   .7s linear         calc(var(--i) * 42ms + var(--l) * 90ms);
}
.is-in .wd { transform: none; opacity: 1; }

/* word-by-word scroll lighting — hero lede */
.lede[data-split] .wd {
  transition: transform 1s var(--ease-out) calc(var(--i) * 26ms), opacity .5s linear;
}
.scene--hero .is-in .lede .wd {
  opacity: clamp(.42, calc((var(--p) * 2.4 + .38 - var(--i) / var(--n)) * 7), 1);
}

/* --- generic reveal ------------------------------------------------------ */
[data-reveal] {
  opacity: 0; transform: translateY(26px);
  transition: opacity .8s var(--ease-out), transform .9s var(--ease-out);
}
[data-reveal].is-in { opacity: 1; transform: none; }

/* ==========================================================================
   4. BUTTONS / ARROWS
   ========================================================================== */
.btn {
  --bx: 0px; --by: 0px;
  position: relative; display: inline-flex; align-items: center; gap: 12px;
  padding: 15px 26px; border-radius: 999px;
  font-size: .95rem; font-weight: 600; letter-spacing: -.01em;
  isolation: isolate; overflow: hidden;
  transform: translate3d(var(--bx), var(--by), 0);
  transition: transform .45s var(--ease-out), border-color .35s, color .35s;
}
.btn::after {
  content: ''; position: absolute; inset: 0; z-index: -1;
  background: var(--green-600);
  transform: translateY(101%);
  transition: transform .55s var(--ease-out);
}
.btn--primary { background: var(--green); color: var(--ink); }
.btn--primary:hover::after, .btn--primary:focus-visible::after { transform: none; }
.btn--ghost {
  border: 1px solid var(--line-dark); color: var(--offwhite);
  background: var(--glass-dark); backdrop-filter: blur(8px);
}
.btn--ghost::after { background: color-mix(in srgb, var(--offwhite) 10%, transparent); }
.btn--ghost:hover { border-color: color-mix(in srgb, var(--green) 55%, transparent); }
.btn--ghost:hover::after, .btn--ghost:focus-visible::after { transform: none; }
.btn--sm { padding: 10px 18px; font-size: .86rem; }
.btn--lg { padding: 18px 32px; font-size: 1.02rem; }

.arrow {
  position: relative; width: 18px; height: 2px; background: currentColor;
  transition: transform .4s var(--ease-out);
}
.arrow::after {
  content: ''; position: absolute; right: 0; top: 50%;
  width: 8px; height: 8px; border-top: 2px solid currentColor; border-right: 2px solid currentColor;
  transform: translateY(-50%) rotate(45deg);
}
.btn:hover .arrow, a:hover > .arrow { transform: translateX(5px); }

.cta-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: clamp(28px, 4vw, 44px); }

/* ==========================================================================
   5. NAVIGATION
   ========================================================================== */
.nav {
  position: fixed; inset: 0 0 auto; z-index: 200;
  transition: background .5s var(--ease), backdrop-filter .5s, border-color .5s;
  border-bottom: 1px solid transparent;
}
.nav.is-stuck {
  background: color-mix(in srgb, var(--ink) 72%, transparent);
  backdrop-filter: blur(16px) saturate(1.3);
  border-bottom-color: var(--line-dark);
}
.nav.is-light.is-stuck {
  background: color-mix(in srgb, var(--offwhite) 78%, transparent);
  border-bottom-color: var(--line-light);
}
.nav__inner {
  max-width: var(--wrap); margin-inline: auto; padding: 0 var(--gut);
  height: var(--nav-h); display: flex; align-items: center; gap: 24px;
}
.nav__brand { flex: none; display: flex; align-items: center; gap: 11px; }
.nav__mark {
  width: 19px; height: 21px; flex: none; fill: var(--green);
  transition: transform .5s var(--ease-out);
}
.nav__brand:hover .nav__mark { transform: translateY(-2px) rotate(-4deg); }
.nav__word { display: grid; }
.nav__word > * { grid-area: 1 / 1; }
.nav__logo { width: auto; height: 19px; transition: opacity .45s var(--ease); }
.nav__logo--light { opacity: 0; pointer-events: none; }
.nav.is-light .nav__logo--dark  { opacity: 0; }
.nav.is-light .nav__logo--light { opacity: 1; }

.nav__menu { margin-left: auto; display: flex; align-items: center; gap: clamp(18px, 2.4vw, 34px); }
.nav__menu > ul { display: flex; gap: clamp(16px, 2vw, 30px); }
.nav__menu a:not(.btn) {
  position: relative; font-size: .9rem; font-weight: 500;
  color: var(--text-dim); transition: color .3s var(--ease);
}
.nav.is-light .nav__menu a:not(.btn) { color: color-mix(in srgb, var(--slate) 86%, transparent); }
.nav__menu a:not(.btn)::after {
  content: ''; position: absolute; left: 0; bottom: -6px; height: 1.5px; width: 100%;
  background: var(--green); transform: scaleX(0); transform-origin: right;
  transition: transform .45s var(--ease-out);
}
.nav__menu a:not(.btn):hover { color: var(--green); }
.nav__menu a:not(.btn):hover::after { transform: scaleX(1); transform-origin: left; }

.nav__progress { height: 2px; background: var(--line-dark); }
.nav__progress i {
  display: block; height: 100%; width: 100%; background: var(--green);
  transform: scaleX(0); transform-origin: left;
  box-shadow: 0 0 12px color-mix(in srgb, var(--green) 70%, transparent);
}

.nav__burger { display: none; width: 42px; height: 42px; position: relative; }
.nav__burger span {
  position: absolute; left: 10px; width: 22px; height: 2px; background: currentColor;
  transition: transform .4s var(--ease-out), opacity .3s;
}
.nav__burger span:nth-child(1) { top: 17px; }
.nav__burger span:nth-child(2) { top: 24px; }
.nav__burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(3.5px) rotate(45deg); }
.nav__burger[aria-expanded="true"] span:nth-child(2) { transform: translateY(-3.5px) rotate(-45deg); }
.nav.is-light { color: var(--slate); }

/* ==========================================================================
   6. THE 2.5D DEPTH SYSTEM
   Each .scene is tall; its .scene__stage pins for the duration.
   JS writes --p (0..1) on the scene; every layer derives its motion from it.
   ========================================================================== */
.scene { position: relative; height: var(--scene-height, 300vh); }
.scene__stage {
  position: sticky; top: 0;
  height: 100svh; overflow: hidden;
  display: grid; place-items: center;
  isolation: isolate;
}

.layer {
  position: absolute; inset: 0;
  display: grid; place-items: center;
  transform: translate3d(0, calc((var(--p) - .5) * var(--rate) * var(--amp) * -1), 0);
}
.layer > * { grid-area: 1 / 1; }

.depth-0 { --rate: .16; filter: blur(var(--b0, 2px)); z-index: 0; }
.depth-1 { --rate: .30; z-index: 1; }
.depth-2 { --rate: .50; z-index: 2; }
.depth-3 { --rate: .72; z-index: 3; }
.depth-4 { --rate: .20; z-index: 5; }   /* content: minimal drift, max legibility */
.depth-5 { --rate: .98; z-index: 6; pointer-events: none; }

/* atmospheric glows */
.glow {
  position: absolute; left: var(--x); top: var(--y);
  width: var(--s); height: var(--s);
  translate: -50% -50%; border-radius: 50%;
  opacity: .34; pointer-events: none;
}
.glow--green {
  background: radial-gradient(circle,
    color-mix(in srgb, var(--green) 62%, transparent) 0%,
    color-mix(in srgb, var(--green) 26%, transparent) 30%,
    color-mix(in srgb, var(--green) 7%,  transparent) 56%,
    transparent 76%);
  opacity: .3;
}
.glow--slate {
  background: radial-gradient(circle,
    color-mix(in srgb, var(--slate) 80%, transparent) 0%,
    color-mix(in srgb, var(--slate) 34%, transparent) 34%,
    transparent 74%);
  opacity: .6;
}

.vignette {
  position: absolute; inset: -2px 0; pointer-events: none;
  transform: translate3d(0, calc((var(--p) - .5) * var(--rate) * var(--amp)), 0);
  background:
    radial-gradient(120% 90% at 50% 45%, transparent 42%, var(--ink) 100%),
    linear-gradient(to bottom, var(--ink) 0%, transparent 16%, transparent 82%, var(--ink) 100%);
}
.vignette--heavy { background: radial-gradient(90% 70% at 50% 50%, transparent 18%, var(--ink) 88%); }

/* large background typography that parallaxes behind content */
.bleed-type {
  position: absolute; top: 50%; translate: 0 -50%;
  font-size: clamp(7rem, 22vw, 19rem); font-weight: 800; letter-spacing: -.05em;
  line-height: .8; white-space: nowrap; pointer-events: none;
  color: transparent;
  -webkit-text-stroke: 1.5px color-mix(in srgb, var(--offwhite) 8%, transparent);
  transform: translate3d(calc((var(--p) - .5) * -18vw), 0, 0);
}
.bleed-type--left  { left: -4vw; }
.bleed-type--right { right: -4vw; }
.bleed-type--light { -webkit-text-stroke-color: color-mix(in srgb, var(--slate) 12%, transparent); }

/* ==========================================================================
   7. HERO
   ========================================================================== */
.scene--hero .scene__stage { background: var(--ink); }
.hero__sky {
  position: absolute; inset: -6vh 0;
  background:
    radial-gradient(90% 70% at 62% 30%, color-mix(in srgb, var(--slate) 62%, transparent) 0%, transparent 62%),
    radial-gradient(70% 60% at 18% 82%, color-mix(in srgb, var(--slate-800) 90%, transparent) 0%, transparent 60%),
    linear-gradient(180deg, var(--ink-2) 0%, var(--ink) 100%);
}
/* perspective floor grid — the horizon of the ecosystem */
.hero__grid {
  position: absolute; left: -50%; right: -50%; bottom: -22%; height: 92%;
  background-image:
    linear-gradient(to right, color-mix(in srgb, var(--green) 18%, transparent) 1px, transparent 1px),
    linear-gradient(to bottom, color-mix(in srgb, var(--green) 14%, transparent) 1px, transparent 1px);
  background-size: 74px 74px;
  transform: perspective(520px) rotateX(66deg) scale(calc(1 + var(--p) * .28));
  transform-origin: 50% 100%;
  mask-image: linear-gradient(to top, #000 4%, transparent 72%);
  opacity: .55;
}
.hero__grid--fine {
  position: absolute; inset: -8vh 0; height: auto;
  background-size: 56px 56px; transform: none; opacity: .35;
  mask-image: radial-gradient(80% 70% at 50% 50%, #000 10%, transparent 78%);
}

.hero__net { position: absolute; inset: 0; width: 100%; height: 100%; opacity: .8; }
.hero__links path {
  stroke-dasharray: 1; stroke-dashoffset: calc(1 - var(--d, 0));
  opacity: .55;
}
.hero__nodes circle {
  fill: var(--green);
  opacity: calc(.25 + var(--d, 0) * .75);
  filter: drop-shadow(0 0 6px color-mix(in srgb, var(--green) 80%, transparent));
}
.scene--hero .hero__links path,
.scene--hero .hero__nodes circle { --d: clamp(0, calc(var(--p) * 4.2 + .08), 1); }

.glyph {
  position: absolute; fill: color-mix(in srgb, var(--slate) 82%, transparent);
  filter: drop-shadow(0 20px 40px rgba(0,0,0,.5));
  animation: float 13s ease-in-out infinite;
}
.glyph--a { width: 7vw; min-width: 62px; left: 8%;  top: 22%; animation-delay: -1s; opacity: .9; }
.glyph--b { width: 5vw; min-width: 44px; right: 12%; top: 16%; animation-delay: -5s;
            fill: color-mix(in srgb, var(--green) 55%, transparent); opacity: .7; }
.glyph--c { width: 8vw; min-width: 68px; right: 6%; bottom: 14%; animation-delay: -8s; opacity: .34; }
.glyph--d { width: 4vw; min-width: 38px; left: 18%; bottom: 20%; animation-delay: -3s; opacity: .45; }
@keyframes float {
  0%,100% { translate: 0 0; rotate: 0deg; }
  50%     { translate: 0 -22px; rotate: 2deg; }
}

.hero__content { text-align: left; }
.scene--hero .layer.depth-4 { align-items: center; }
.hero__content .display { margin-bottom: clamp(22px, 3vw, 34px); }

.particles { position: absolute; inset: 0; }
.particles i {
  position: absolute; left: var(--x); top: var(--y);
  width: var(--s); height: var(--s); border-radius: 50%;
  background: var(--green); opacity: var(--o);
  animation: drift var(--t) linear infinite; animation-delay: var(--dl);
  filter: blur(.3px);
}
@keyframes drift {
  from { transform: translateY(14vh) scale(.6); opacity: 0; }
  25%  { opacity: var(--o); }
  to   { transform: translateY(-42vh) scale(1); opacity: 0; }
}

.scroll-cue {
  position: absolute; left: 50%; bottom: 26px; translate: -50% 0; z-index: 7;
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  font-family: var(--mono); font-size: .66rem; letter-spacing: .2em;
  text-transform: uppercase; color: var(--text-dimmer);
  opacity: clamp(0, calc(1 - var(--p) * 6), 1);
  transition: opacity .3s linear;
}
.scroll-cue i {
  width: 1px; height: 42px; background: linear-gradient(var(--green), transparent);
  animation: cue 2.2s var(--ease) infinite;
}
@keyframes cue { 0%,100% { transform: scaleY(.3); opacity: .4; } 50% { transform: scaleY(1); opacity: 1; } }

/* --- the thread that stitches hero → scene 01 ---------------------------- */
.thread { position: relative; height: 200px; margin-top: -100px; z-index: 4; background: var(--ink); }
.thread svg { width: 100%; height: 100%; }
.thread__line {
  fill: none; stroke: var(--green); stroke-width: 2; stroke-linecap: round;
  stroke-dasharray: 1; stroke-dashoffset: calc(1 - var(--pv, 0));
  filter: drop-shadow(0 0 8px color-mix(in srgb, var(--green) 60%, transparent));
}

/* ==========================================================================
   8. SCENE 01 — INFRASTRUCTURE
   ========================================================================== */
.scene--infra .scene__stage { background: linear-gradient(180deg, var(--ink) 0%, var(--ink-2) 100%); }
.iso-floor {
  position: absolute; inset: -6vh 0;
  background:
    radial-gradient(70% 50% at 50% 78%, color-mix(in srgb, var(--slate) 44%, transparent) 0%, transparent 70%),
    linear-gradient(180deg, transparent 40%, color-mix(in srgb, var(--slate-800) 70%, transparent) 100%);
}
.iso { width: min(1180px, 96vw); height: auto; color: color-mix(in srgb, var(--offwhite) 24%, transparent); }
.iso__rack { opacity: 0; translate: 0 28px;
  transition: opacity .9s var(--ease-out), translate 1s var(--ease-out); }
.iso__rack:nth-of-type(1) { transition-delay: .05s } .iso__rack:nth-of-type(2) { transition-delay: .15s }
.iso__rack:nth-of-type(3) { transition-delay: .25s } .iso__rack:nth-of-type(4) { transition-delay: .35s }
.iso__rack:nth-of-type(5) { transition-delay: .45s }
.is-in .iso__rack { opacity: 1; translate: none; }
.iso__u path { stroke: color-mix(in srgb, var(--offwhite) 14%, transparent); }

/* the EVOSOL-green cable that travels the scene */
.cable__path {
  stroke-dasharray: 1;
  stroke-dashoffset: calc(1 - clamp(0, calc((var(--p) - .12) / .58), 1));
  filter: drop-shadow(0 0 10px color-mix(in srgb, var(--green) 70%, transparent));
}
.cable__head {
  offset-path: path("M200 470 L280 430 L410 430 L490 390 L620 385 L730 330 L840 385 L960 448 L960 470");
  offset-distance: calc(clamp(0, calc((var(--p) - .12) / .58), 1) * 100%);
  offset-rotate: 0deg;
  opacity: clamp(0, calc(var(--p) * 12), 1);
  filter: drop-shadow(0 0 12px var(--green));
}
.iso__ports circle {
  fill: none; stroke: var(--green); stroke-width: 1.6;
  opacity: clamp(.15, calc((var(--p) - .12) * 3), 1);
}

.scene__grid {
  display: grid; gap: clamp(28px, 4vw, 60px);
  grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr);
  align-items: end;
  padding-block: clamp(70px, 12vh, 130px);
  height: 100%; align-content: space-between;
}
.scene__grid--split { align-items: center; align-content: center; }
.scene__lead { align-self: start; }
.scene__grid .display--lg { font-size: clamp(1.9rem, 3.9vw, 3.4rem); }
.scene__aside { display: grid; gap: 18px; align-self: end; }

.card {
  padding: clamp(22px, 2.6vw, 32px); border-radius: 18px;
  background: color-mix(in srgb, var(--slate) 26%, transparent);
  border: 1px solid var(--line-dark);
  backdrop-filter: blur(14px);
  transition: transform .55s var(--ease-out), border-color .45s, box-shadow .55s;
}
.card:hover {
  transform: translateY(-6px);
  border-color: color-mix(in srgb, var(--green) 45%, transparent);
  box-shadow: 0 24px 60px -20px rgba(0,0,0,.7);
}
.card__title {
  font-size: clamp(1.06rem, 1.5vw, 1.3rem); font-weight: 650;
  letter-spacing: -.02em; margin-bottom: 12px;
}
.card p { font-size: .95rem; line-height: 1.62; color: var(--text-dim); }

.taglist { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.taglist li {
  font-family: var(--mono); font-size: .7rem; letter-spacing: .08em;
  padding: 7px 12px; border-radius: 999px;
  border: 1px solid var(--line-dark);
  color: var(--text-dim);
  background: color-mix(in srgb, var(--offwhite) 3%, transparent);
}
.taglist--wide { margin-top: clamp(26px, 3.4vw, 40px); gap: 10px; max-width: 78ch; }

/* cascading stack reveal for chip/tag groups */
[data-stack] li {
  opacity: 0; transform: translateY(16px) scale(.96);
  transition: opacity .6s var(--ease-out) calc(var(--i) * 55ms),
              transform .7s var(--ease-out) calc(var(--i) * 55ms),
              border-color .4s, color .4s;
}
[data-stack].is-in li { opacity: 1; transform: none; }
[data-stack] li:hover { border-color: color-mix(in srgb, var(--green) 60%, transparent); color: var(--green); }

/* ==========================================================================
   9. SCENE 02 — NETWORK TOPOLOGY
   ========================================================================== */
.scene--network .scene__stage { background: var(--ink); }
.topo { width: min(680px, 54vw); height: auto; translate: 30% 0; }
/* the copy owns the left half, the topology owns the right */
.scene--network .scene__grid--split { grid-template-columns: minmax(0, 520px); }
.scene--network .scene__aside { align-self: start; margin-top: 22px; }
.topo__links path {
  --d: clamp(0, calc((var(--p) * 1.55 - var(--k) * .052) * 7), 1);
  stroke-dasharray: 1; stroke-dashoffset: calc(1 - var(--d));
  opacity: calc(.25 + var(--d) * .55);
}
.topo__node { --d: clamp(0, calc((var(--p) * 1.55 - var(--k) * .05) * 7), 1); }
.topo__node circle {
  fill: color-mix(in srgb, var(--ink) 90%, transparent);
  stroke: var(--green); stroke-width: 1.8;
  opacity: var(--d);
  transform: scale(calc(.5 + var(--d) * .5));
  transform-box: fill-box; transform-origin: center;
  filter: drop-shadow(0 0 8px rgba(122, 201, 76, .45));
}
.topo__node--leaf circle { stroke: color-mix(in srgb, var(--offwhite) 40%, transparent); stroke-width: 1.2; }
.topo__node text {
  fill: var(--text-dim); font-family: var(--mono); font-size: 11px;
  letter-spacing: .1em; text-anchor: middle; text-transform: uppercase;
  opacity: calc(var(--d) * .9);
}

.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chips li {
  font-size: .88rem; font-weight: 550; padding: 11px 18px; border-radius: 12px;
  background: color-mix(in srgb, var(--slate) 34%, transparent);
  border: 1px solid var(--line-dark);
  backdrop-filter: blur(10px);
}

/* ==========================================================================
   10. SCENE 03 — CCTV
   ========================================================================== */
.scene--cctv .scene__stage { background: linear-gradient(180deg, var(--ink-2), var(--ink)); }
.cctv__sky {
  position: absolute; inset: -6vh 0;
  background: radial-gradient(80% 60% at 40% 25%, color-mix(in srgb, var(--slate) 50%, transparent), transparent 65%);
}
.cctv { width: min(1160px, 96vw); height: auto; color: color-mix(in srgb, var(--offwhite) 22%, transparent); }
.cctv__windows path { stroke: color-mix(in srgb, var(--green) 26%, transparent); stroke-width: 5; stroke-linecap: round; }
.cctv__cones path {
  --d: clamp(0, calc((var(--p) * 1.6 - var(--k) * .13) * 6), 1);
  fill: color-mix(in srgb, var(--green) 9%, transparent);
  stroke: color-mix(in srgb, var(--green) 28%, transparent); stroke-width: 1;
  opacity: var(--d);
  transform: scaleY(var(--d)); transform-box: fill-box; transform-origin: top center;
}
.cctv__cams g { --d: clamp(0, calc((var(--p) * 1.6 - var(--k) * .13) * 6), 1); opacity: var(--d); }
.cctv__cams rect { fill: color-mix(in srgb, var(--slate) 92%, var(--offwhite)); }
.cam__led { fill: var(--green); animation: blink 2.4s steps(1) infinite; }
@keyframes blink { 0%,60% { opacity: 1 } 61%,100% { opacity: .25 } }
.cctv__wire { stroke-dasharray: 1; stroke-dashoffset: calc(1 - clamp(0, calc((var(--p) - .3) / .4), 1)); opacity: .7; }
.cctv__nvr rect { fill: color-mix(in srgb, var(--slate) 80%, transparent); stroke: var(--green); stroke-width: 1.2; }
.cctv__nvr text {
  fill: var(--text-dim); font-family: var(--mono); font-size: 12px;
  letter-spacing: .14em; text-anchor: middle;
}

.monitor-wall {
  position: absolute; right: clamp(20px, 5vw, 90px); top: 50%; translate: 0 -50%;
  display: grid; grid-template-columns: repeat(2, clamp(96px, 11vw, 158px));
  gap: 10px; opacity: .9;
}
.monitor {
  position: relative; aspect-ratio: 16/10; border-radius: 8px; overflow: hidden;
  background: linear-gradient(140deg, color-mix(in srgb, var(--slate) 70%, transparent), var(--ink-2));
  border: 1px solid color-mix(in srgb, var(--green) 26%, transparent);
  opacity: clamp(0, calc((var(--p) * 1.7 - var(--i) * .12) * 6), 1);
  transform: translateY(calc((1 - clamp(0, calc((var(--p) * 1.7 - var(--i) * .12) * 6), 1)) * 20px));
}
.monitor .rec {
  position: absolute; left: 8px; top: 8px; width: 6px; height: 6px; border-radius: 50%;
  background: var(--green); animation: blink 2s steps(1) infinite;
  animation-delay: calc(var(--i) * .3s);
}
.monitor .scanline {
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, transparent, color-mix(in srgb, var(--green) 30%, transparent) 50%, transparent);
  height: 34%; animation: scan 4.5s linear infinite; animation-delay: calc(var(--i) * -1.1s);
}
@keyframes scan { from { transform: translateY(-120%) } to { transform: translateY(320%) } }

/* ==========================================================================
   11. SCENE 04 — THE CORE (perspective corridor)
   ========================================================================== */
.scene--core .scene__stage { background: #04090b; }
.core__void {
  position: absolute; inset: -6vh 0;
  background: radial-gradient(60% 50% at 50% 50%, color-mix(in srgb, var(--slate) 40%, transparent), #030709 78%);
}
.core__word {
  position: absolute; left: 50%; top: 50%; translate: -50% -50%;
  font-size: clamp(4.4rem, 17vw, 15rem); font-weight: 800; letter-spacing: -.045em;
  white-space: nowrap; color: transparent;
  -webkit-text-stroke: 3px color-mix(in srgb, var(--green) 62%, transparent);
  opacity: calc(clamp(0, calc((var(--p) + .12) * 7), 1) *
                clamp(0, calc((.5 - var(--p)) * 4.5), 1));
  transform: scale(calc(.86 + var(--p) * .7));
  filter: blur(calc(var(--p) * 5px));
}

.core__corridor {
  perspective: 780px; perspective-origin: 50% 50%;
  transform-style: preserve-3d; filter: none;
}
.rank {
  position: absolute; inset: 0; transform-style: preserve-3d;
  /* --dz is depth in thousands of px: negative = ahead, positive = behind you */
  --dz: calc(var(--z) * -.78 - .55 + var(--p) * 3.9);
  transform: translate3d(0, 0, calc(var(--dz) * 1000px));
  opacity: calc(
    clamp(0, calc((var(--dz) + 3.3) * 1.5), 1) *   /* fade in from the far end */
    clamp(0, calc((.52 - var(--dz)) * 5),    1));  /* fade out past the camera */
}
.rack {
  position: absolute; top: 50%; width: clamp(180px, 22vw, 320px); height: 62vh;
  translate: 0 -50%;
  border-radius: 6px;
  background:
    repeating-linear-gradient(180deg,
      color-mix(in srgb, var(--slate) 88%, transparent) 0 26px,
      color-mix(in srgb, var(--slate-800) 96%, transparent) 26px 32px),
    var(--slate-600);
  border: 1px solid color-mix(in srgb, var(--offwhite) 10%, transparent);
  box-shadow: inset 0 0 60px rgba(0,0,0,.8);
}
/* rack LEDs activate as you move deeper */
.rack::after {
  content: ''; position: absolute; inset: 10px 12px;
  background:
    repeating-linear-gradient(180deg,
      transparent 0 7px,
      var(--green) 7px 12px,
      transparent 12px 26px),
    repeating-linear-gradient(180deg,
      transparent 0 18px,
      color-mix(in srgb, var(--offwhite) 30%, transparent) 18px 20px,
      transparent 20px 26px);
  background-size: 26% 100%, 14% 100%;
  background-position: 8% 0, 66% 0;
  background-repeat: repeat-y;
  opacity: clamp(.38, calc(.38 + var(--p) * .75), 1);
  filter: drop-shadow(0 0 6px rgba(122, 201, 76, .7));
}
.rack::before {
  content: ''; position: absolute; inset: 0; border-radius: inherit;
  background: radial-gradient(62% 42% at 50% 50%,
    color-mix(in srgb, var(--green) 16%, transparent), transparent 72%);
  animation: rackglow 4.2s var(--ease) infinite;
  animation-delay: calc(var(--z) * -.8s);
}
@keyframes rackglow { 0%,100% { opacity: .22 } 50% { opacity: .68 } }
.rack--l { left: 2%;  transform: rotateY(32deg); transform-origin: left center; }
.rack--r { right: 2%; transform: rotateY(-32deg); transform-origin: right center; }

.core__haze {
  position: absolute; inset: -8vh 0; pointer-events: none;
  background: radial-gradient(46% 40% at 50% 50%, color-mix(in srgb, var(--green) 12%, transparent), transparent 70%);
  opacity: calc(.3 + var(--p) * .7);
}
.core__content { text-align: center; display: grid; justify-items: center; position: relative; }
.core__content::before {
  content: ''; position: absolute; inset: -8vh -6vw; z-index: -1;
  background: radial-gradient(58% 54% at 50% 50%, rgba(4,9,11,.74) 26%, rgba(4,9,11,.35) 55%, transparent 78%);
}
.core__content .taglist--wide { justify-content: center; }

/* ==========================================================================
   12. SCENE 05 — RADIUS / AAA (horizontal sequence)
   ========================================================================== */
.scene--aaa .scene__stage { background: linear-gradient(180deg, var(--ink), #06111a 60%, var(--ink)); }
.scene--aaa .layer--head { align-items: start; padding-top: clamp(84px, 13vh, 132px); }
.scene--aaa .layer--foot { align-items: end; padding-bottom: clamp(40px, 7vh, 78px); }
.aaa__head { text-align: center; }
.aaa__head .eyebrow { justify-content: center; }

.aaa__track {
  --p2: clamp(0, calc((var(--p) - .16) / .62), 1);
  width: 100%; overflow: hidden; padding-block: 20px;
}
.aaa__rail {
  position: relative; height: 2px; margin: 0 var(--gut) 40px;
  background: var(--line-dark); border-radius: 2px;
}
.aaa__fill {
  position: absolute; inset: 0; background: var(--green); border-radius: 2px;
  transform: scaleX(var(--p2)); transform-origin: left;
  box-shadow: 0 0 14px color-mix(in srgb, var(--green) 70%, transparent);
}
.aaa__packet {
  position: absolute; top: 50%; left: 0; width: 12px; height: 12px; border-radius: 50%;
  background: var(--green); translate: calc(var(--p2) * (100cqw - 12px)) -50%;
  box-shadow: 0 0 18px var(--green);
}
.aaa__rail { container-type: inline-size; }

.aaa__steps {
  display: flex; gap: clamp(16px, 2.4vw, 34px); padding-inline: var(--gut);
  width: max-content;
  /* horizontal travel driven by vertical scroll */
  transform: translate3d(calc(var(--p2) * (100vw - 100% - var(--gut) * 2)), 0, 0);
}
.aaa__step {
  --d: clamp(0, calc((var(--p2) * 6.4 - var(--k) * .96) * 2.2), 1);
  flex: none; width: clamp(230px, 26vw, 320px);
  padding: 26px 24px 28px; border-radius: 16px;
  background: color-mix(in srgb, var(--slate) calc(18% + var(--d) * 20%), var(--ink-2));
  border: 1px solid color-mix(in srgb, var(--green) calc(var(--d) * 52%), var(--line-dark));
  opacity: calc(.34 + var(--d) * .66);
  transform: translateY(calc((1 - var(--d)) * 16px)) scale(calc(.96 + var(--d) * .04));
  box-shadow: 0 0 calc(var(--d) * 40px) -12px color-mix(in srgb, var(--green) 60%, transparent);
}
.aaa__num {
  display: inline-block; font-family: var(--mono); font-size: .72rem; letter-spacing: .2em;
  color: var(--green); opacity: calc(.4 + var(--d) * .6); margin-bottom: 12px;
}
.aaa__step h3 { font-size: 1.2rem; font-weight: 650; letter-spacing: -.02em; margin-bottom: 8px; }
.aaa__step p { font-size: .9rem; line-height: 1.6; color: var(--text-dim); }

/* ==========================================================================
   13. SCENE 06 — COMPUTE & SCALE
   ========================================================================== */
.scene--compute .scene__stage { background: var(--ink); }
.compute {
  --split: clamp(0, calc((var(--p) - .14) / .42), 1);
  --lift:  clamp(0, calc((var(--p) - .52) / .34), 1);
  position: relative; display: grid; place-items: center;
  width: min(560px, 78vw); aspect-ratio: 1;
}
.compute__stack { position: relative; width: 100%; height: 62%; }
.vm {
  position: absolute; left: 50%; top: 50%; width: 34%; aspect-ratio: 16/9;
  translate: -50% -50%;
  display: grid; align-content: center; gap: 5px; padding: 10px;
  border-radius: 8px;
  background: linear-gradient(150deg, color-mix(in srgb, var(--slate) 78%, transparent), var(--slate-800));
  border: 1px solid color-mix(in srgb, var(--offwhite) 12%, transparent);
  box-shadow: 0 18px 40px -14px rgba(0,0,0,.8);
  /* one server divides into six virtualized systems */
  transform: translate3d(calc(var(--tx) * var(--split)), calc(var(--ty) * var(--split)), 0)
             scale(calc(1 - var(--split) * .1));
}
.vm:nth-child(1) { --tx: -118%; --ty: -112%; }
.vm:nth-child(2) { --tx:    0%; --ty: -112%; }
.vm:nth-child(3) { --tx:  118%; --ty: -112%; }
.vm:nth-child(4) { --tx: -118%; --ty:   12%; }
.vm:nth-child(5) { --tx:    0%; --ty:   12%; }
.vm:nth-child(6) { --tx:  118%; --ty:   12%; }
.vm i {
  height: 3px; border-radius: 2px;
  background: color-mix(in srgb, var(--offwhite) 18%, transparent);
}
.vm i:first-child {
  background: var(--green); width: calc(30% + var(--i) * 9%);
  box-shadow: 0 0 8px color-mix(in srgb, var(--green) 70%, transparent);
  opacity: calc(.3 + var(--split) * .7);
}

.compute__cloud {
  position: absolute; left: 50%; bottom: -6%; width: 72%; translate: -50% 0;
  color: color-mix(in srgb, var(--offwhite) 30%, transparent);
  opacity: var(--lift);
  transform: translateY(calc((1 - var(--lift)) * 40px));
}
.cloud__uplink { stroke-dasharray: 1; stroke-dashoffset: calc(1 - var(--lift)); }
.cloud__dots circle { fill: var(--green); opacity: calc(var(--lift) * .9); }

/* ==========================================================================
   14. SCENE 07 — SOFTWARE (dark → light)
   ========================================================================== */
.scene--software .scene__stage { background: var(--offwhite); color: var(--slate); }
.scene--software .lede,
.scene--software .body { color: color-mix(in srgb, var(--slate) 82%, transparent); }
.scene--software .taglist li {
  border-color: var(--line-light);
  color: color-mix(in srgb, var(--slate) 82%, transparent);
  background: var(--white);
}
.scene--software [data-stack] li:hover { border-color: var(--green-700); color: var(--green-700); }
.soft__wash {
  position: absolute; inset: -8vh 0;
  background:
    radial-gradient(70% 55% at 72% 28%, color-mix(in srgb, var(--green) 13%, transparent), transparent 62%),
    radial-gradient(60% 50% at 12% 82%, color-mix(in srgb, var(--slate) 10%, transparent), transparent 60%),
    var(--offwhite);
}
.software__content { text-align: left; }
.scene--software .display { color: var(--slate); }

.panels {
  --sep: clamp(0, calc((var(--p) - .12) / .5), 1);
  position: absolute; right: clamp(-40px, -2vw, 0px); top: 50%; translate: 0 -50%;
  width: min(620px, 52vw); aspect-ratio: 1;
  perspective: 1200px; transform-style: preserve-3d;
}
.panel {
  position: absolute; border-radius: 12px; overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line-light);
  box-shadow: 0 30px 70px -30px color-mix(in srgb, var(--slate) 55%, transparent);
  transform:
    translate3d(calc(var(--tx) * var(--sep)), calc(var(--ty) * var(--sep)), calc(var(--tz) * var(--sep)))
    rotateY(calc(-16deg * var(--sep))) rotateX(calc(6deg * var(--sep)));
  opacity: calc(.15 + var(--sep) * .85);
}
.panel--erp    { --tx: -6%;  --ty: -26%; --tz: 0px;    width: 76%; aspect-ratio: 16/10; left: 12%; top: 30%; z-index: 3; }
.panel--crm    { --tx: -46%; --ty:  16%; --tz: -140px; width: 54%; aspect-ratio: 4/3;   left: 8%;  top: 34%; z-index: 2; }
.panel--bill   { --tx:  34%; --ty: -50%; --tz: -220px; width: 44%; aspect-ratio: 4/3;   left: 30%; top: 34%; z-index: 1; }
.panel--api    { --tx:  40%; --ty:  44%; --tz: 90px;   width: 46%; aspect-ratio: 5/3;   left: 26%; top: 34%; z-index: 4; }
.panel--mobile { --tx: -60%; --ty:  62%; --tz: 180px;  width: 19%; aspect-ratio: 9/18;  left: 40%; top: 24%; z-index: 5; border-radius: 22px; }

.panel__bar {
  display: flex; align-items: center; gap: 6px; padding: 9px 12px;
  border-bottom: 1px solid var(--line-light);
  background: color-mix(in srgb, var(--slate) 4%, var(--white));
}
.panel__bar i { width: 7px; height: 7px; border-radius: 50%; background: color-mix(in srgb, var(--slate) 22%, transparent); }
.panel__bar i:first-child { background: var(--green); }
.panel__bar b {
  margin-left: 8px; font-size: .62rem; font-family: var(--mono);
  letter-spacing: .12em; text-transform: uppercase;
  color: color-mix(in srgb, var(--slate) 60%, transparent); font-weight: 600;
}
.panel__body { padding: 14px; display: grid; gap: 12px; height: 100%; align-content: start; }
.kpi { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.kpi span { height: 30px; border-radius: 6px; background: color-mix(in srgb, var(--slate) 8%, transparent); }
.kpi span:first-child { background: color-mix(in srgb, var(--green) 22%, transparent); }
.bars { display: flex; align-items: end; gap: 6px; height: 84px; }
.bars i {
  flex: 1; height: var(--h); border-radius: 3px 3px 0 0;
  background: color-mix(in srgb, var(--slate) 26%, transparent);
  transform: scaleY(var(--sep, 1)); transform-origin: bottom;
}
.bars i:nth-child(4) { background: var(--green); }
.rows { display: grid; gap: 9px; }
.rows i { height: 12px; border-radius: 4px; background: color-mix(in srgb, var(--slate) 9%, transparent); }
.rows i:nth-child(2) { width: 74%; }
.rows i:nth-child(4) { width: 58%; background: color-mix(in srgb, var(--green) 26%, transparent); }
.rows--tight i { height: 9px; }
.panel__body--code { font-family: var(--mono); font-size: .58rem; gap: 7px; }
.panel__body--code code {
  padding: 6px 9px; border-radius: 5px;
  background: color-mix(in srgb, var(--slate) 6%, transparent);
  color: color-mix(in srgb, var(--slate) 72%, transparent);
}
.panel__body--code code:nth-child(2) { color: var(--green-700); background: color-mix(in srgb, var(--green) 14%, transparent); }
.panel__notch {
  height: 22px; display: grid; place-items: center;
}
.panel__notch::after {
  content: ''; width: 34%; height: 5px; border-radius: 3px;
  background: color-mix(in srgb, var(--slate) 20%, transparent);
}

/* ==========================================================================
   15. SCENE 08 — THE ECOSYSTEM
   ========================================================================== */
.scene--eco .scene__stage { background: radial-gradient(70% 60% at 50% 50%, #0b171d, var(--ink) 75%); }
.eco__void { position: absolute; inset: -6vh 0; background: radial-gradient(50% 40% at 50% 50%, color-mix(in srgb, var(--slate) 34%, transparent), transparent 72%); }
.eco__pulse { animation: ecopulse 6s var(--ease) infinite; }
@keyframes ecopulse { 0%,100% { opacity: .16; transform: scale(1) } 50% { opacity: .3; transform: scale(1.07) } }

.scene--eco .layer--head { align-items: start; padding-top: clamp(66px, 9.5vh, 100px); }
.scene--eco .layer--foot { align-items: end; padding-bottom: clamp(26px, 4.5vh, 52px); }
.eco__head { text-align: center; display: grid; justify-items: center; }
.eco__foot { text-align: center; display: grid; justify-items: center; gap: 12px; }
.eco__head .eyebrow { justify-content: center; }

.eco { display: grid; justify-items: center; }
.eco__svg { width: min(620px, 66vw, 48vh); height: auto; }
/* the diagram is the subject here — hold it steadier against the headline */
.scene--eco .depth-3 { --rate: .34; align-items: center; padding-top: 7vh; }

.eco__links path {
  --d: clamp(0, calc((var(--p) * 1.9 - .18 - var(--k) * .085) * 6), 1);
  stroke-dasharray: 1; stroke-dashoffset: calc(1 - var(--d));
  opacity: calc(.3 + var(--d) * .6);
  filter: drop-shadow(0 0 6px rgba(122, 201, 76, .4));
}
.eco__ring path {
  stroke-dasharray: 1;
  stroke-dashoffset: calc(1 - clamp(0, calc((var(--p) - .5) / .3), 1));
}
.eco__node {
  --d: clamp(0, calc((var(--p) * 1.9 - .2 - var(--k) * .085) * 6), 1);
  opacity: var(--d);
}
.eco__mark {
  fill: color-mix(in srgb, var(--slate) 86%, var(--offwhite));
  overflow: visible;
  transform: scale(calc(.6 + var(--d) * .4));
  transform-box: fill-box; transform-origin: center;
  transition: fill .4s var(--ease);
}
.eco__node:nth-of-type(2n) .eco__mark { fill: color-mix(in srgb, var(--green) 78%, transparent); }
.eco__node text {
  fill: var(--offwhite); font-size: 25px; font-weight: 600; letter-spacing: -.005em;
  text-anchor: middle; opacity: calc(var(--d) * .92);
}
.eco__core {
  opacity: clamp(0, calc(var(--p) * 6), 1);
  transform: translate(450px, 450px) scale(calc(.7 + clamp(0, calc(var(--p) * 3), 1) * .3));
}
.eco__halo {
  fill: none; stroke: var(--green); stroke-width: 1.4; opacity: .4;
  transform-box: fill-box; transform-origin: center;
  animation: halo 4.5s var(--ease) infinite;
}
@keyframes halo { 0%,100% { transform: scale(1); opacity: .42 } 50% { transform: scale(1.14); opacity: .12 } }
.eco__mark--core {
  fill: var(--green);
  filter: drop-shadow(0 0 24px color-mix(in srgb, var(--green) 65%, transparent));
}
.eco__caption {
  font-family: var(--mono); font-size: .78rem; letter-spacing: .1em;
  color: var(--text-dim); text-align: center;
}
.eco__caption strong { color: var(--green); font-weight: 600; }
.count { color: var(--green); font-weight: 700; font-size: 1.15em; font-variant-numeric: tabular-nums; }

/* ==========================================================================
   16. SCENE 09 — MANAGED IT
   ========================================================================== */
.scene--managed .scene__stage { background: linear-gradient(180deg, var(--ink), var(--ink-2)); }
.console {
  border-radius: 18px; overflow: hidden;
  background: color-mix(in srgb, var(--slate) 26%, transparent);
  border: 1px solid var(--line-dark); backdrop-filter: blur(16px);
  box-shadow: 0 30px 80px -30px rgba(0,0,0,.8);
}
.console__bar {
  display: flex; align-items: center; gap: 10px; padding: 14px 18px;
  border-bottom: 1px solid var(--line-dark);
  font-family: var(--mono); font-size: .72rem; letter-spacing: .16em; text-transform: uppercase;
  color: var(--text-dim);
}
.pulse {
  width: 8px; height: 8px; border-radius: 50%; background: var(--green);
  animation: ping 2.2s var(--ease) infinite;
}
.console__rows li {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 13px 18px; font-size: .92rem;
  border-bottom: 1px solid color-mix(in srgb, var(--offwhite) 7%, transparent);
  opacity: clamp(0, calc((var(--p) * 2.4 - var(--i) * .1) * 5), 1);
  transform: translateX(calc((1 - clamp(0, calc((var(--p) * 2.4 - var(--i) * .1) * 5), 1)) * 18px));
}
.console__rows li:last-child { border-bottom: 0; }
.console__rows .led {
  width: 7px; height: 7px; border-radius: 50%; flex: none;
  background: var(--green);
  box-shadow: 0 0 10px color-mix(in srgb, var(--green) 80%, transparent);
  animation: led 3s var(--ease) infinite;
  animation-delay: calc(var(--i) * -.42s);
}
@keyframes led { 0%,100% { opacity: 1; transform: scale(1) } 55% { opacity: .32; transform: scale(.8) } }

/* ==========================================================================
   17. FINAL SCENE
   ========================================================================== */
.scene--final .scene__stage { background: radial-gradient(65% 60% at 50% 42%, #0c1a20, var(--ink) 78%); }
.final__void { position: absolute; inset: -6vh 0; background: radial-gradient(45% 40% at 50% 40%, color-mix(in srgb, var(--slate) 40%, transparent), transparent 70%); }

.lattice {
  width: min(440px, 62vmin); height: auto;
  opacity: calc(.1 + clamp(0, calc(var(--p) / .55), 1) * .2);
}
/* scattered geometry converging into the EVOSOL mark */
.tile {
  --a: clamp(0, calc((var(--p) - .04) / .5), 1);   /* assembly progress */
  fill: color-mix(in srgb, var(--slate) 96%, var(--offwhite));
  overflow: visible;
  transform-box: fill-box; transform-origin: center;
  transform:
    translate(calc(var(--sx) * (1 - var(--a))), calc(var(--sy) * (1 - var(--a))))
    rotate(calc(var(--sr) * (1 - var(--a))))
    scale(calc(.55 + var(--a) * .45));
  opacity: var(--a);
}
.tile--green { fill: color-mix(in srgb, var(--green) 74%, transparent); }
.tile:nth-child(1) { --sx: -140px; --sy: -220px; --sr: -38deg; }
.tile:nth-child(2) { --sx:  260px; --sy: -160px; --sr:  32deg; }
.tile:nth-child(3) { --sx:  280px; --sy:  180px; --sr: -26deg; }
.tile:nth-child(4) { --sx:   90px; --sy:  260px; --sr:  40deg; }
.tile:nth-child(5) { --sx: -270px; --sy:  190px; --sr:  24deg; }
.tile:nth-child(6) { --sx: -250px; --sy: -150px; --sr: -30deg; }
.tile:nth-child(7) { --sx:    0px; --sy:   40px; --sr:  90deg; }

.final__content { text-align: center; display: grid; justify-items: center; }
.final__content .lede { margin-top: 22px; }
.final__content .cta-row { justify-content: center; }

.contact {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px; margin-top: clamp(38px, 5vw, 60px); width: min(760px, 100%);
}
.contact a {
  display: grid; gap: 4px; position: relative;
  padding: 20px 22px; border-radius: 14px; text-align: left;
  background: color-mix(in srgb, var(--slate) 24%, transparent);
  border: 1px solid var(--line-dark); backdrop-filter: blur(12px);
  transition: transform .45s var(--ease-out), border-color .4s, background .4s;
}
.contact a:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--green) 55%, transparent);
  background: color-mix(in srgb, var(--slate) 36%, transparent);
}
.contact__k {
  font-family: var(--mono); font-size: .66rem; letter-spacing: .2em;
  text-transform: uppercase; color: var(--green);
}
.contact__v { font-size: .98rem; font-weight: 600; }
.contact .arrow { position: absolute; right: 20px; top: 50%; translate: 0 -50%; width: 14px; opacity: .5; }
.contact a:hover .arrow { opacity: 1; transform: translateX(4px); }

/* ==========================================================================
   17b. SOCIAL — fixed desktop rail + footer row
   ========================================================================== */
.social-rail {
  position: fixed; left: max(14px, 1.4vw); top: 50%; translate: 0 -50%; z-index: 150;
  display: grid; justify-items: center; gap: 14px;
  pointer-events: none;
}
.social-rail ul { display: grid; gap: 6px; pointer-events: auto; }
.social-rail__line {
  width: 1px; height: 68px;
  background: linear-gradient(to bottom, color-mix(in srgb, var(--green) 55%, transparent), transparent);
}
.social-rail a {
  display: grid; place-items: center; width: 38px; height: 38px; border-radius: 50%;
  color: var(--text-dimmer);
  transition: color .35s var(--ease), background .35s var(--ease), transform .45s var(--ease-out);
}
.social-rail a svg { width: 17px; height: 17px; fill: currentColor; }
.social-rail a:hover {
  color: var(--green);
  background: color-mix(in srgb, var(--green) 12%, transparent);
  transform: translateY(-2px);
}
.nav.is-light ~ .social-rail a { color: color-mix(in srgb, var(--slate) 78%, transparent); }
.nav.is-light ~ .social-rail .social-rail__line {
  background: linear-gradient(to bottom, color-mix(in srgb, var(--green-600) 60%, transparent), transparent);
}
@media (max-width: 1400px) { .social-rail { display: none; } }

.foot__social { display: flex; gap: 8px; }
.foot__social a {
  display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%;
  color: var(--text-dim);
  border: 1px solid var(--line-dark);
  transition: color .35s var(--ease), border-color .35s var(--ease),
              background .35s var(--ease), transform .45s var(--ease-out);
}
.foot__social a svg { width: 17px; height: 17px; fill: currentColor; }
.foot__social a:hover {
  color: var(--green);
  border-color: color-mix(in srgb, var(--green) 55%, transparent);
  background: color-mix(in srgb, var(--green) 10%, transparent);
  transform: translateY(-3px);
}

/* ==========================================================================
   18. FOOTER
   ========================================================================== */
.foot { position: relative; z-index: 10; background: var(--ink-2); border-top: 1px solid var(--line-dark); }
.foot__inner {
  display: grid; gap: 22px; justify-items: center; text-align: center;
  padding-block: clamp(48px, 7vw, 82px);
}
.foot__logo { height: 46px; width: auto; opacity: .9; }
.foot__tag { font-family: var(--mono); font-size: .72rem; letter-spacing: .18em; text-transform: uppercase; color: var(--green); }
.foot__nav { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 22px; }
.foot__nav a { font-size: .9rem; color: var(--text-dim); transition: color .3s; }
.foot__nav a:hover { color: var(--green); }
.foot__legal { font-size: .8rem; color: var(--text-dimmer); }

/* ==========================================================================
   19. RESPONSIVE — a dedicated mobile interpretation, not a shrunk desktop
   ========================================================================== */
@media (max-width: 1080px) {
  .scene__grid { grid-template-columns: 1fr; align-content: center; gap: 26px; }
  .scene__aside { align-self: center; }
  .monitor-wall { display: none; }
  .topo { translate: none; width: min(680px, 92vw); }
  .scene--network .scene__grid--split { grid-template-columns: 1fr; }
  .panels { position: relative; right: auto; top: auto; translate: none; width: min(520px, 84vw); margin-inline: auto; }
  .scene--software .layer.depth-3 { align-items: end; padding-bottom: 4vh; }
  .software__content { align-self: start; padding-top: 8vh; }
}

@media (max-width: 860px) {
  :root { --amp: 10vh; --nav-h: 62px; }

  .nav__menu {
    position: fixed; inset: var(--nav-h) 0 auto; flex-direction: column;
    align-items: stretch; gap: 0; padding: 18px var(--gut) 28px;
    background: color-mix(in srgb, var(--ink) 96%, transparent);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--line-dark);
    clip-path: inset(0 0 100% 0);
    transition: clip-path .5s var(--ease-out);
  }
  .nav.is-open .nav__menu { clip-path: inset(0 0 0 0); }
  .nav__menu > ul { flex-direction: column; gap: 0; }
  .nav__menu a:not(.btn) { display: block; padding: 15px 0; font-size: 1.05rem; border-bottom: 1px solid var(--line-dark); }
  .nav__menu a:not(.btn)::after { display: none; }
  .nav__cta { margin-top: 18px; justify-content: center; }
  .nav__burger { display: block; margin-left: auto; }
  .nav.is-light .nav__menu { background: color-mix(in srgb, var(--offwhite) 96%, transparent); }

  /* shorter scenes so the story never feels like a long scroll on a phone */
  .scene { height: min(var(--scene-height, 300vh), 260vh); }
  .scene--aaa { height: 300vh; }
  .scene__stage { height: 100svh; }
  .scene__grid { padding-block: clamp(84px, 14vh, 120px) clamp(40px, 8vh, 70px); }

  .hero__content { text-align: left; }
  .glyph--b, .glyph--d { display: none; }
  .bleed-type { font-size: clamp(5rem, 34vw, 9rem); }

  .iso, .topo, .cctv { width: 128vw; max-width: none; opacity: .8; }
  .rack { width: 46vw; }
  .aaa__steps { transform: translate3d(calc(var(--p2) * (100vw - 100% - var(--gut) * 2)), 0, 0); }
  .aaa__step { width: min(268px, 74vw); }
  .compute { width: 82vw; }
  .panels { width: 88vw; }
  .eco__svg { width: min(90vw, 46vh); }
  .eco__node text { font-size: 30px; }
  .contact { grid-template-columns: 1fr; }
  .cta-row .btn { flex: 1 1 auto; justify-content: center; }
}

@media (max-width: 480px) {
  .display--xl { font-size: clamp(2.15rem, 10vw, 3rem); }
  .display--lg { font-size: clamp(1.85rem, 8.4vw, 2.6rem); }
  .scroll-cue span { display: none; }
}

/* touch devices: soften depth so scrolling stays buttery */
@media (pointer: coarse) {
  :root { --amp: 9vh; }
  .depth-0 { --b0: 0px; }
  .card, .console, .contact a, .btn--ghost, .aaa__step, .chips li { backdrop-filter: none; }
}

/* ==========================================================================
   20. REDUCED MOTION — every scene collapses to a calm, complete page
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}

/* JS sets data-motion="reduced" when the user prefers reduced motion.
   Scroll-linked geometry is frozen at its finished state so all information
   is present without any movement. */
[data-motion="reduced"] .layer { transform: none !important; }
[data-motion="reduced"] .bleed-type { transform: none !important; }
[data-motion="reduced"] .wd { transform: none !important; opacity: 1 !important; }
[data-motion="reduced"] [data-reveal] { opacity: 1 !important; transform: none !important; }
[data-motion="reduced"] [data-stack] li { opacity: 1 !important; transform: none !important; }
[data-motion="reduced"] .hero__grid { transform: perspective(520px) rotateX(66deg); }
[data-motion="reduced"] .particles,
[data-motion="reduced"] .scroll-cue { display: none; }
[data-motion="reduced"] .core__word { filter: none; opacity: .8; transform: translate(-50%,-50%); }
[data-motion="reduced"] .rank { transform: translate3d(0,0,calc(var(--z) * -300px)); opacity: 1; }
[data-motion="reduced"] .aaa__steps { transform: none; overflow-x: auto; }
[data-motion="reduced"] .aaa__track { overflow-x: auto; }
[data-motion="reduced"] .panel { transform: none; position: relative; width: 100%; left: auto; top: auto; margin-bottom: 12px; }
[data-motion="reduced"] .panels { position: relative; height: auto; aspect-ratio: auto; perspective: none; }
[data-motion="reduced"] .iso__rack { opacity: 1; translate: none; }
[data-motion="reduced"] .vignette { transform: none; }
[data-motion="reduced"] .aaa__packet { display: none; }
[data-motion="reduced"] .aaa__step { --d: 1; }
[data-motion="reduced"] .aaa__steps { gap: 16px; padding-bottom: 8px; }