@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@300;400;500;600&family=Playfair+Display:ital,wght@0,400;0,500;1,400;1,500&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root {
  --sf-bg: #030404;
  --sf-text: #f1f1ed;
  --sf-muted: #bec6c2;
  --sf-dim: #737d78;
  --sf-line: rgba(255, 255, 255, 0.16);
  --sf-line-soft: rgba(255, 255, 255, 0.09);
  /* Default (Events & Meetings) accent — teal. --sf-accent-rgb is the same
     color as an "r, g, b" triplet with no wrapper, so any rgba(var(...), a)
     usage below can still control its own alpha. */
  --sf-accent: #4fe0e6;
  --sf-accent-rgb: 79, 224, 230;
  /* Two supporting hues used only by the decorative multi-color surfaces
     (background aurora, the floating showcase card's gradient border/glow,
     and the shimmer on italic heading text) — never on solid text, buttons,
     borders or anything a11y-relevant, so it's safe for these to be more
     "vibe" than exact brand color. */
  --sf-hue2: #a68cf0;
  --sf-hue2-rgb: 186, 120, 232;
  --sf-hue3: #7c96f5;
  --sf-hue3-rgb: 108, 130, 240;
  --sf-hue4-rgb: 94, 232, 160;
  --sf-serif: 'Playfair Display', Georgia, serif;
  --sf-sans: 'DM Sans', Arial, sans-serif;
  --sf-mono: 'IBM Plex Mono', monospace;
}

/* ==========================================================================
   Platform theming
   ==========================================================================
   Driven entirely by the "Platform Color Theme" field (module.platform_theme)
   which module.html renders as data-enm-theme="..." on the .enm-root wrapper
   that everything else lives inside. Every themed color in this file reads
   from the --sf-accent(-rgb) / --sf-hue2/3(-rgb) / --sf-hue4-rgb custom
   properties above rather than a literal color, so overriding those four
   properties here re-colors the accent text, buttons, borders, glows, the
   background aurora and the heading shimmer everywhere at once.

   Primary --sf-accent values are each platform's real brand color (sources:
   Brandfetch brand profiles + each platform's own live site, checked
   September 2026 — Bizzabo in particular has moved on from the blue some
   directories still list, to the yellow their current site actually uses).
   The --sf-hue2/3/4 values are NOT hand-picked per platform — they're the
   default teal/violet/indigo/emerald aurora hues uniformly hue-rotated by
   the same amount as the accent color, so every theme keeps the same
   internal color harmony as the original design instead of needing 40+
   individually chosen values. Treat --sf-accent as "verify against your
   brand kit if exact accuracy matters"; treat --sf-hue2/3/4 as ambient/
   decorative only. */
.enm-root[data-enm-theme="cvent"] {
  --sf-accent: #00ef6b;
  --sf-accent-rgb: 0, 239, 107;
  --sf-hue2: #8cadf0;
  --sf-hue2-rgb: 120, 120, 232;
  --sf-hue3: #7cdef5;
  --sf-hue3-rgb: 108, 208, 240;
  --sf-hue4-rgb: 110, 232, 94;
}
.enm-root[data-enm-theme="bizzabo"] {
  --sf-accent: #ffc629;
  --sf-accent-rgb: 255, 198, 41;
  --sf-hue2: #91f08c;
  --sf-hue2-rgb: 120, 232, 152;
  --sf-hue3: #bbf57c;
  --sf-hue3-rgb: 170, 240, 108;
  --sf-hue4-rgb: 232, 118, 94;
}
.enm-root[data-enm-theme="swoogo"] {
  --sf-accent: #f46a34;
  --sf-accent-rgb: 244, 106, 52;
  --sf-hue2: #bef08c;
  --sf-hue2-rgb: 139, 232, 120;
  --sf-hue3: #f2f57c;
  --sf-hue3-rgb: 230, 240, 108;
  --sf-hue4-rgb: 232, 94, 133;
}
.enm-root[data-enm-theme="hubilo"] {
  --sf-accent: #d1dd2b;
  --sf-accent-rgb: 209, 221, 43;
  --sf-hue2: #8cf0a9;
  --sf-hue2-rgb: 120, 232, 189;
  --sf-hue3: #93f57c;
  --sf-hue3-rgb: 126, 240, 108;
  --sf-hue4-rgb: 232, 164, 94;
}
.enm-root[data-enm-theme="spotme"] {
  --sf-accent: #e85c30;
  --sf-accent-rgb: 232, 92, 48;
  --sf-hue2: #c2f08c;
  --sf-hue2-rgb: 144, 232, 120;
  --sf-hue3: #f5f37c;
  --sf-hue3-rgb: 236, 240, 108;
  --sf-hue4-rgb: 232, 94, 139;
}
.enm-root[data-enm-theme="on24"] {
  /* ON24's literal brand blue (#3040e8) reads fine on their own white
     product UI, but used as small text/label color against this page's
     near-black card backgrounds it measures ~2.9:1 contrast — well under
     the 4.5:1 WCAG AA minimum for text, which is why the "01/02/03…" card
     numbers and section-number eyebrows were hard to make out. Lightened
     to the same hue/saturation, just brighter, so it still reads as
     ON24 blue but clears AA (~5.2:1) — every other platform's accent in
     this file already sits in the 4.4–13.4:1 range, this brings on24 in
     line with the rest instead of being the one outlier. */
  --sf-accent: #6c77ef;
  --sf-accent-rgb: 108, 119, 239;
  --sf-hue2: #f08ce3;
  --sf-hue2-rgb: 232, 120, 180;
  --sf-hue3: #cc7cf5;
  --sf-hue3-rgb: 201, 108, 240;
  --sf-hue4-rgb: 94, 183, 232;
}
.enm-root[data-enm-theme="rainfocus"] {
  --sf-accent: #e71356;
  --sf-accent-rgb: 231, 19, 86;
  --sf-hue2: #f0e68c;
  --sf-hue2-rgb: 206, 232, 120;
  --sf-hue3: #f5b07c;
  --sf-hue3-rgb: 240, 171, 108;
  --sf-hue4-rgb: 232, 94, 215;
}
.enm-root[data-enm-theme="whova"] {
  --sf-accent: #069eed;
  --sf-accent-rgb: 6, 158, 237;
  --sf-hue2: #c48cf0;
  --sf-hue2-rgb: 220, 120, 232;
  --sf-hue3: #877cf5;
  --sf-hue3-rgb: 126, 108, 240;
  --sf-hue4-rgb: 94, 232, 202;
}
.enm-root[data-enm-theme="vfairs"] {
  --sf-accent: #f1614b;
  --sf-accent-rgb: 241, 97, 75;
  --sf-hue2: #cdf08c;
  --sf-hue2-rgb: 156, 232, 120;
  --sf-hue3: #f5e67c;
  --sf-hue3-rgb: 240, 230, 108;
  --sf-hue4-rgb: 232, 94, 153;
}
.enm-root[data-enm-theme="amego"] {
  --sf-accent: #9d5cff;
  --sf-accent-rgb: 157, 92, 255;
  --sf-hue2: #f08cad;
  --sf-hue2-rgb: 232, 120, 120;
  --sf-hue3: #f57cdd;
  --sf-hue3-rgb: 240, 108, 208;
  --sf-hue4-rgb: 94, 109, 232;
}


* { box-sizing: border-box; }

html {
  background: var(--sf-bg);
  overflow-x: hidden;
}
/* `clip` hides sideways overflow WITHOUT turning html/body into scroll
   containers (which would silently break every position: sticky below). */
@supports (overflow: clip) {
  html, body { overflow-x: clip !important; }
}

body {
  margin: 0;
  background: var(--sf-bg);
  color: var(--sf-text);
  font-family: var(--sf-sans);
  overflow-x: hidden;
}

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

/* Fixed background — a soft, slow-drifting teal/dark gradient "aurora".
   Three large, blurred radial-gradient blobs on a fixed layer, each
   drifting on its own slow, looping path via transform (GPU-accelerated,
   no layout/paint cost). This replaces what used to be a Three.js/WebGL
   scene (particles + a spotlight rig): no library to download, nothing to
   boot or fail to boot on an older device or unsupported browser, and
   effectively free to keep running. */
.sf-aurora {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
  background: var(--sf-bg);
}
.aurora-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.75;
  will-change: transform;
}
.aurora-1 {
  /* Brand teal — the anchor hue, largest + brightest blob. */
  width: 52vw;
  height: 52vw;
  top: -6vw;
  left: -4vw;
  background: radial-gradient(circle at 50% 50%, rgba(var(--sf-accent-rgb), 0.48), rgba(var(--sf-accent-rgb), 0) 70%);
  animation: enm-aurora-drift-1 42s ease-in-out infinite;
}
.aurora-2 {
  /* Cool indigo-blue — sits opposite the teal blob for a two-tone drift. */
  width: 46vw;
  height: 46vw;
  bottom: -8vw;
  right: -2vw;
  background: radial-gradient(circle at 50% 50%, rgba(var(--sf-hue3-rgb), 0.36), rgba(var(--sf-hue3-rgb), 0) 70%);
  animation: enm-aurora-drift-2 50s ease-in-out infinite;
}
.aurora-3 {
  /* Soft violet — the classic third aurora hue, kept central and subtle. */
  width: 40vw;
  height: 40vw;
  top: 26vh;
  left: 34vw;
  background: radial-gradient(circle at 50% 50%, rgba(var(--sf-hue2-rgb), 0.3), rgba(var(--sf-hue2-rgb), 0) 70%);
  animation: enm-aurora-drift-3 60s ease-in-out infinite;
}
.aurora-4 {
  /* Emerald-green accent — smallest blob, adds the green streak that
     reads unmistakably as "aurora" without crowding the brand teal. */
  width: 30vw;
  height: 30vw;
  top: -4vh;
  right: 14vw;
  background: radial-gradient(circle at 50% 50%, rgba(var(--sf-hue4-rgb), 0.26), rgba(var(--sf-hue4-rgb), 0) 70%);
  animation: enm-aurora-drift-4 55s ease-in-out infinite;
}
@keyframes enm-aurora-drift-1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(6vw, 8vh) scale(1.12); }
}
@keyframes enm-aurora-drift-2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-7vw, -6vh) scale(1.08); }
}
@keyframes enm-aurora-drift-3 {
  0%, 100% { transform: translate(-4vw, 0) scale(0.95); }
  50% { transform: translate(4vw, -5vh) scale(1.1); }
}
@keyframes enm-aurora-drift-4 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-5vw, 6vh) scale(1.15); }
}
@media (max-width: 640px) {
  .aurora-blob { filter: blur(50px); opacity: 0.6; }
  .aurora-4 { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .aurora-blob { animation: none; }
}

/* Background Atmosphere */
.sf-atmosphere {
  position: fixed; inset: 0; z-index: 1; pointer-events: none;
  background: radial-gradient(ellipse at 50% 50%, transparent 55%, rgba(3, 4, 4, 0.32) 80%, rgba(3, 4, 4, 0.88) 100%);
  transition: background 0.75s ease;
}

.sf-grain {
  position: fixed; inset: -50%; z-index: 2; pointer-events: none; opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.8'/%3E%3C/svg%3E");
}

/* Side Navigation */
.side-nav {
  position: fixed; z-index: 60; left: clamp(20px, 2.5vw, 40px); top: 50%; transform: translateY(-50%);
  display: flex; flex-direction: column; width: 175px;
}
.side-nav::before {
  content: 'ON THIS PAGE'; font-family: var(--sf-mono); font-size: 8.5px; letter-spacing: 0.32em; color: #78817d; margin-bottom: 22px;
}
.side-nav a {
  display: flex; align-items: center; gap: 14px; min-height: 29px; font-size: 10px; color: #68716d; transition: color 0.3s ease;
}
.side-nav .tick {
  display: block; width: 14px; height: 1px; background: #515955; transition: width 0.35s ease, background 0.35s ease;
}
.side-nav a.active { color: #f1f1ed; }
.side-nav a.active .tick { width: 36px; background: var(--sf-accent); }
.side-nav a:focus-visible { color: #f1f1ed; outline: 2px solid var(--sf-accent); outline-offset: 4px; border-radius: 4px; }

/* Right Badge */
.sf-edge-badge {
  position: fixed; z-index: 55; right: 0; top: 45%; width: 44px; height: 160px;
  background: #f3f3ef; color: #090a09; display: flex; align-items: center; justify-content: space-between; flex-direction: column; padding: 12px 0;
}
.sf-edge-badge span { font-family: var(--sf-serif); font-size: 18px; font-weight: 500; }
.sf-edge-badge b { font-size: 9px; writing-mode: vertical-rl; transform: rotate(180deg); letter-spacing: 0.12em; font-family: var(--sf-mono); }


/* Ambient sound toggle (mont-fort style). Stays reachable at every viewport
   width, unlike the side-nav/edge-badge, since sound should stay available
   on mobile too. */
.sf-sound-toggle {
  position: fixed;
  z-index: 70;
  right: 22px;
  bottom: 22px;
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--sf-line);
  background: rgba(5, 10, 12, 0.72);
  color: #e7eae8;
  cursor: pointer;
  backdrop-filter: blur(8px);
  transition: border-color 0.25s ease, background 0.25s ease, color 0.25s ease;
}
.sf-sound-toggle:hover { border-color: var(--sf-accent); color: var(--sf-accent); }
.sf-sound-toggle:focus-visible { outline: 2px solid var(--sf-accent); outline-offset: 3px; }
.sf-sound-toggle[aria-pressed="true"] {
  border-color: var(--sf-accent);
  color: var(--sf-accent);
  background: rgba(8, 20, 22, 0.85);
}
.sf-sound-toggle .sst-canvas { width: 22px; height: 22px; display: block; }
.sst-sr-label {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
@media (max-width: 640px) {
  .sf-sound-toggle { right: 16px; bottom: 16px; width: 42px; height: 42px; }
}
@media (prefers-reduced-motion: reduce) {
  .sf-sound-toggle { transition: none; }
}


/* ==========================================================================
   Page layout — /platforms/bizzabo/
   Hero + environment panel · poster cards · ledger · hub with data-flow
   arrows · stair steps · sticky-FAQ · centred CTA
   ========================================================================== */
.content { position: relative; z-index: 10; width: 100%; }
.sf-atmosphere {
  background: radial-gradient(ellipse at 50% 50%, rgba(3,4,4,.3) 0%, rgba(3,4,4,.55) 70%, rgba(3,4,4,.86) 100%);
}
[hidden] { display: none !important; }

section { position: relative; display: block; padding: 96px 0; }
.wrap-wide {
  width: auto;
  max-width: 1180px;
  margin-left: clamp(240px, 18vw, 340px);
  margin-right: clamp(60px, 8vw, 150px);
}
.panel { position: relative; isolation: isolate; }
.panel::before, .hero-copy::before {
  content: ""; position: absolute; z-index: -1; inset: -40px -50px; pointer-events: none;
  background: radial-gradient(ellipse at center, rgba(3,4,4,.82) 0%, rgba(3,4,4,.42) 60%, transparent 85%);
  filter: blur(14px);
}

/* Typography */
.sec-label { display: flex; gap: 12px; align-items: center; margin: 0 0 18px; font-family: var(--sf-mono); font-size: 10px; letter-spacing: .25em; text-transform: uppercase; color: #aab2ae; }
.sec-label b { color: var(--sf-accent); font-weight: 400; }
.sec-label--center { justify-content: center; }
h1, h2, h3, p { margin-top: 0; }
.content h1, .content h2 { color: #f1f1ed; text-shadow: 0 2px 24px rgba(0,0,0,.7); }
h1 { font-family: var(--sf-serif); font-size: clamp(38px, 4.2vw, 62px); font-weight: 400; line-height: 1.04; letter-spacing: -.045em; margin: 0 0 24px; }
h2 { font-family: var(--sf-serif); font-size: clamp(34px, 3.8vw, 56px); font-weight: 400; line-height: 1.06; letter-spacing: -.035em; margin: 0 0 20px; max-width: 20ch; }
.h2-wide { max-width: 24ch; }
/* Italic accent phrases: slow gradient shimmer in the theme's hues. */
h1 em, h2 em {
  font-style: italic; font-weight: 400;
  background: linear-gradient(90deg, var(--sf-accent) 0%, var(--sf-hue2) 35%, var(--sf-hue3) 55%, var(--sf-accent) 100%);
  background-size: 220% 100%;
  -webkit-background-clip: text; background-clip: text;
  color: transparent; -webkit-text-fill-color: transparent;
  animation: enm-em-shimmer 7s linear infinite;
}
@keyframes enm-em-shimmer { 0% { background-position: 0% 50%; } 100% { background-position: 220% 50%; } }
.section-sub, .hero-subheading { color: #c0c8c4; font-size: 16px; line-height: 1.65; margin: 0; max-width: 58ch; text-shadow: 0 1px 12px rgba(0,0,0,.85); }
.section-sub p, .hero-subheading p { margin: 0 0 1.1em; color: inherit; }
.section-sub p:last-child, .hero-subheading p:last-child { margin-bottom: 0; }
.section-sub strong, .hero-subheading strong { color: #f5f8f6; }
.rich-copy a, .item-copy a { color: var(--sf-accent); border-bottom: 1px solid rgba(var(--sf-accent-rgb), .4); }

.reveal { opacity: 0; transform: translateY(20px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
.stagger > * { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; transition-delay: calc(var(--i, 0) * 90ms); }
.reveal.in .stagger > * { opacity: 1; transform: none; }

/* Buttons */
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center; background: #f0f1ed; color: #090a09;
  border-radius: 999px; padding: 15px 28px; font-family: var(--sf-mono); font-size: 11px; text-transform: uppercase; letter-spacing: .16em; font-weight: 600; transition: all .25s ease; text-align: center;
}
.btn-primary:hover { background: var(--sf-accent); transform: translateY(-2px); }
.btn-primary.btn-lg { padding: 19px 36px; font-size: 11px; }

/* ---------- 01 Hero ---------- */
.hero { min-height: 100vh; min-height: 100svh; padding: 90px 0 80px; overflow: hidden; display: flex; align-items: center; }
.hero-grid {
  position: relative; z-index: 1; width: 100%;
  display: grid; grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr); gap: clamp(36px, 5vw, 80px); align-items: center;
  margin-left: clamp(240px, 18vw, 340px); margin-right: clamp(40px, 6vw, 110px); max-width: 1240px;
}
.hero-copy { position: relative; isolation: isolate; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px 28px; align-items: center; margin-top: 32px; }
.scroll-cue { position: absolute; left: clamp(240px, 18vw, 340px); bottom: 30px; display: flex; align-items: center; gap: 10px; font-family: var(--sf-mono); font-size: 9px; letter-spacing: .2em; text-transform: uppercase; color: #e4e6e2; text-shadow: 0 1px 4px rgba(0,0,0,.9); z-index: 1; }
.scroll-cue .ln { width: 28px; height: 1px; background: var(--sf-accent); }
/* The H1 stays complete in the HTML (SEO / no-JS); JS only adds this caret while typing. */
.hero h1.is-typing::after { content: ""; display: inline-block; width: .045em; height: .78em; margin-left: .08em; background: var(--sf-accent); box-shadow: 0 0 14px rgba(var(--sf-accent-rgb), .55); animation: enm-type-caret .7s steps(1, end) infinite; vertical-align: -.04em; }
@keyframes enm-type-caret { 50% { opacity: 0; } }

/* Tilted visual: built-in "event environment" window, or an uploaded image/video in the same frame */
.hero-visual { position: relative; width: 100%; max-width: 560px; justify-self: end; perspective: 1400px; }
.hv-back { position: absolute; inset: 0; border-radius: 22px; border: 1px solid rgba(var(--sf-accent-rgb), .22); background: rgba(var(--sf-accent-rgb), .04); transform-origin: center; }
.hv-back-1 { transform: translate(26px, -22px) rotateY(-12deg) rotateX(3deg); opacity: .8; }
.hv-back-2 { transform: translate(52px, -44px) rotateY(-12deg) rotateX(3deg); opacity: .45; }
.hv-win, .hv-frame {
  position: relative; transform: rotateY(-12deg) rotateX(3deg); transform-origin: center;
  border-radius: 22px; border: 1px solid rgba(var(--sf-accent-rgb), .38); overflow: hidden;
  background: linear-gradient(160deg, rgba(var(--sf-accent-rgb), .12), rgba(5,10,12,.94) 46%);
  box-shadow: 0 40px 90px rgba(0,0,0,.6), 0 0 70px rgba(var(--sf-accent-rgb), .14), inset 0 1px 0 rgba(255,255,255,.07);
  animation: hv-float 9s ease-in-out infinite;
}
@keyframes hv-float { 0%, 100% { translate: 0 0; } 50% { translate: 0 -10px; } }
.hv-bar { display: flex; align-items: center; gap: 7px; padding: 14px 18px; border-bottom: 1px solid var(--sf-line-soft); background: rgba(255,255,255,.025); }
.hv-bar i { width: 9px; height: 9px; border-radius: 50%; background: rgba(255,255,255,.16); }
.hv-bar i:first-child { background: rgba(var(--sf-accent-rgb), .8); }
.hv-bar span { margin-left: 10px; font-family: var(--sf-mono); font-size: 10px; letter-spacing: .14em; text-transform: uppercase; color: var(--sf-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.hv-rows { list-style: none; margin: 0; padding: 12px 18px 20px; }
.hv-row { display: grid; grid-template-columns: 24px minmax(0, 1fr) 76px; align-items: center; gap: 12px; padding: 14px 0; border-bottom: 1px solid var(--sf-line-soft); }
.hv-row:last-child { border-bottom: 0; }
.hv-tick { display: grid; place-items: center; width: 22px; height: 22px; border-radius: 50%; border: 1px solid rgba(var(--sf-accent-rgb), .55); color: var(--sf-accent); animation: hv-tick 11s ease-in-out infinite; animation-delay: calc(var(--i) * .7s); }
.hv-name { font-family: var(--sf-serif); font-size: 19px; letter-spacing: -.01em; color: #eef1ee; }
.hv-meter { height: 4px; border-radius: 4px; background: rgba(255,255,255,.1); overflow: hidden; }
.hv-meter b { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--sf-accent), var(--sf-hue3)); transform-origin: left center; animation: hv-fill 11s ease-in-out infinite; animation-delay: calc(var(--i) * .7s); }
@keyframes hv-fill { 0% { transform: scaleX(0); } 14%, 84% { transform: scaleX(1); } 94%, 100% { transform: scaleX(0); } }
@keyframes hv-tick { 0%, 13% { opacity: .25; background: transparent; box-shadow: none; } 18%, 84% { opacity: 1; background: rgba(var(--sf-accent-rgb), .18); box-shadow: 0 0 14px rgba(var(--sf-accent-rgb), .45); } 94%, 100% { opacity: .25; background: transparent; box-shadow: none; } }
.hv-frame { aspect-ratio: 4 / 3; }
.hv-frame--logo { display: grid; place-items: center; padding: 8%; }
.hv-media { display: block; width: 100%; height: 100%; object-fit: cover; }
.hv-media--contain { object-fit: contain; }

/* ---------- 02 Challenge — poster cards ---------- */
.poster-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; margin-top: 52px; align-items: start; }
.poster { position: relative; overflow: hidden; min-height: 360px; padding: 34px 30px 36px; border-radius: 20px; border: 1px solid var(--sf-line-soft); background: rgba(5,10,12,.85); transition: border-color .3s, transform .6s ease, opacity .6s ease; }
.poster::before { content: ""; position: absolute; left: 0; top: 0; right: 0; height: 2px; background: linear-gradient(90deg, var(--sf-accent), transparent 80%); }
.poster::after { content: ""; position: absolute; right: -30%; bottom: -40%; width: 80%; aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle, rgba(var(--sf-accent-rgb), .12), transparent 70%); pointer-events: none; }
.poster > * { position: relative; z-index: 1; }
.poster-n { display: block; margin: 0 0 30px; font-family: var(--sf-serif); font-size: clamp(96px, 9vw, 132px); line-height: .85; letter-spacing: -.04em; color: transparent; -webkit-text-stroke: 1px rgba(var(--sf-accent-rgb), .6); }
.poster h3 { font-family: var(--sf-serif); font-size: clamp(22px, 1.9vw, 27px); font-weight: 400; line-height: 1.2; letter-spacing: -.02em; margin: 0 0 14px; color: #fff; }
.poster p { margin: 0; font-size: 15px; line-height: 1.7; color: #b3bbb7; }
@media (min-width: 1151px) {
  .poster:nth-child(2) { margin-top: 44px; }
}
@media (hover: hover) and (pointer: fine) {
  .poster:hover { border-color: rgba(var(--sf-accent-rgb), .5); }
  .poster:hover .poster-n { -webkit-text-stroke-color: var(--sf-accent); }
}

/* ---------- 03 What E&M handles — ledger (div grid, theme-proof) ---------- */
.ledger { margin-top: 40px; }
.lg-head, .lg-row { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); column-gap: 28px; }
.lg-head { padding: 0 0 14px; border-bottom: 1px solid rgba(var(--sf-accent-rgb), .5); font-family: var(--sf-mono); font-size: 10px; letter-spacing: .22em; text-transform: uppercase; color: var(--sf-accent); }
.lg-row { padding: 26px 0; border-bottom: 1px solid var(--sf-line-soft); background: transparent; transition: background .25s; }
.lg-area { display: flex; align-items: flex-start; gap: 0; min-width: 0; }
.lg-n { flex: 0 0 44px; font-family: var(--sf-mono); font-size: 10px; letter-spacing: .14em; color: var(--sf-accent); padding-top: 7px; }
.lg-t { font-family: var(--sf-serif); font-size: clamp(21px, 1.9vw, 27px); line-height: 1.2; letter-spacing: -.02em; color: #fff; transition: transform .25s; }
.lg-what { font-size: 15.5px; line-height: 1.7; color: #b3bbb7; transition: color .25s; }
@media (hover: hover) and (pointer: fine) {
  .lg-row:hover { background: linear-gradient(90deg, rgba(var(--sf-accent-rgb), .09), transparent 85%); }
  .lg-row:hover .lg-what { color: #e4eae6; }
  .lg-row:hover .lg-t { transform: translateX(8px); }
}

/* ---------- 04 Technology ecosystem — hub with data-flow arrows ---------- */
[data-flow="out"] { --fc: var(--sf-hue3); --fc-rgb: var(--sf-hue3-rgb); }
[data-flow="in"] { --fc: var(--sf-hue2); --fc-rgb: var(--sf-hue2-rgb); }
[data-flow="both"] { --fc: var(--sf-accent); --fc-rgb: var(--sf-accent-rgb); }
.orbit { position: relative; display: flex; flex-direction: column; margin-top: 46px; }
.orbit-lines { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; pointer-events: none; z-index: 0; }
.orbit-row { position: relative; z-index: 1; list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(var(--cols, 3), minmax(0, 1fr)); gap: 18px; }
.orbit-node { position: relative; padding: 20px 22px 22px; border: 1px solid var(--sf-line-soft); border-radius: 16px; background: rgba(5,10,12,.9); transition: border-color .25s, transform .25s; }
.orbit-node h3 { font-family: var(--sf-serif); font-size: 22px; font-weight: 400; letter-spacing: -.015em; margin: 12px 0 4px; color: #fff; }
.on-eg { display: block; margin: 0 0 10px; font-family: var(--sf-mono); font-size: 10.5px; line-height: 1.5; letter-spacing: .02em; color: #7e8985; }
.orbit-node p { margin: 0; font-size: 13.5px; line-height: 1.6; color: #a9b1ad; }
.flow-tag { display: inline-flex; align-items: center; gap: 8px; padding: 5px 11px 5px 8px; border-radius: 999px; border: 1px solid rgba(var(--fc-rgb), .5); background: rgba(var(--fc-rgb), .1); font-family: var(--sf-mono); font-size: 9px; letter-spacing: .1em; text-transform: uppercase; color: #eef2ef; }
.flow-tag i { font-style: normal; font-size: 12px; line-height: 1; color: var(--fc); }
@media (hover: hover) and (pointer: fine) {
  .orbit-node:hover { border-color: rgba(var(--fc-rgb), .6); transform: translateY(-2px); }
}
.orbit-hub { position: relative; z-index: 1; width: 190px; aspect-ratio: 1; margin: 96px auto; display: grid; place-items: center; }
.orbit-hub::before { content: ""; position: absolute; inset: -34%; border-radius: 50%; background: radial-gradient(circle, rgba(var(--sf-accent-rgb), .22), transparent 68%); pointer-events: none; }
.orbit-hub-ring { position: absolute; inset: -8px; border-radius: 50%; border: 1px solid transparent; background: conic-gradient(from 0deg, rgba(var(--sf-accent-rgb), .9), rgba(var(--sf-hue2-rgb), .1) 30%, rgba(var(--sf-hue3-rgb), .85) 60%, rgba(var(--sf-accent-rgb), .1) 85%, rgba(var(--sf-accent-rgb), .9)) border-box; -webkit-mask: linear-gradient(#000 0 0) padding-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask: linear-gradient(#000 0 0) padding-box exclude, linear-gradient(#000 0 0); padding: 2px; animation: hub-spin 14s linear infinite; }
@keyframes hub-spin { to { transform: rotate(360deg); } }
.orbit-hub-core { position: relative; width: 100%; height: 100%; border-radius: 50%; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; background: radial-gradient(circle at 50% 36%, rgba(var(--sf-accent-rgb), .22), rgba(5,12,14,.97) 70%); border: 1px solid rgba(var(--sf-accent-rgb), .6); box-shadow: 0 0 50px rgba(var(--sf-accent-rgb), .22), inset 0 0 30px rgba(var(--sf-accent-rgb), .08); }
.orbit-hub-core b { font-family: var(--sf-serif); font-size: clamp(26px, 2.6vw, 34px); font-weight: 400; letter-spacing: -.03em; color: #fff; text-shadow: 0 0 20px rgba(var(--sf-accent-rgb), .55); }
.orbit-hub-core em { margin-top: 6px; font-style: normal; font-family: var(--sf-mono); font-size: 9px; letter-spacing: .2em; text-transform: uppercase; color: var(--sf-accent); }
/* JS-drawn connectors */
.ol-path { fill: none; stroke: rgba(var(--fc-rgb), .6); stroke-width: 1.4; stroke-linecap: round; stroke-dasharray: 1; stroke-dashoffset: 1; transition: stroke-dashoffset 1.1s cubic-bezier(.22,.61,.36,1); transition-delay: calc(var(--i, 0) * 120ms + .3s); }
.ol-arrow { fill: var(--fc); opacity: 0; transition: opacity .5s ease; transition-delay: calc(var(--i, 0) * 120ms + 1.1s); }
.ol-dot { fill: var(--fc); filter: drop-shadow(0 0 5px rgba(var(--fc-rgb), .9)); opacity: 0; transition: opacity .5s ease; transition-delay: calc(var(--i, 0) * 120ms + 1.3s); }
.reveal.in .ol-path { stroke-dashoffset: 0; }
.reveal.in .ol-arrow, .reveal.in .ol-dot { opacity: 1; }
.flow-legend { list-style: none; display: flex; flex-wrap: wrap; gap: 10px 26px; margin: 34px 0 0; padding: 0; }
.flow-legend li { display: inline-flex; align-items: center; gap: 9px; font-family: var(--sf-mono); font-size: 10px; letter-spacing: .12em; text-transform: uppercase; color: #aab2ae; }
.flow-legend i { display: grid; place-items: center; width: 24px; height: 24px; border-radius: 50%; border: 1px solid rgba(var(--fc-rgb), .55); background: rgba(var(--fc-rgb), .1); font-style: normal; font-size: 12px; color: var(--fc); }
.eco-caption { max-width: 66ch; margin: 28px 0 0; padding-left: 18px; border-left: 2px solid var(--sf-accent); font-size: 15px; line-height: 1.7; color: #c0c8c4; }

/* ---------- 05 Approach — stair steps ---------- */
.stairs { list-style: none; margin: 54px 0 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; align-items: start; counter-reset: none; }
.stair { position: relative; overflow: hidden; min-height: 210px; padding: 28px 26px 30px; border-radius: 18px; border: 1px solid var(--sf-line-soft); background: rgba(5,10,12,.85); }
.stair::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 2px; background: linear-gradient(180deg, var(--sf-accent), transparent); }
.stair-n { position: absolute; right: 18px; top: -.12em; font-family: var(--sf-serif); font-size: 112px; line-height: 1; letter-spacing: -.04em; color: transparent; -webkit-text-stroke: 1px rgba(var(--sf-accent-rgb), .3); pointer-events: none; }
.stair h3 { position: relative; font-family: var(--sf-serif); font-size: 26px; font-weight: 400; letter-spacing: -.02em; margin: 56px 0 10px; color: #fff; }
.stair p { position: relative; margin: 0; font-size: 14.5px; line-height: 1.65; color: #a9b1ad; }
@media (min-width: 1151px) {
  .stair:nth-child(3n + 2) { margin-top: 36px; }
  .stair:nth-child(3n) { margin-top: 72px; }
}

/* ---------- 06 FAQ — sticky heading + accordion cards ---------- */
.faq-layout { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: clamp(36px, 6vw, 96px); align-items: start; }
.faq-head { position: sticky; top: 110px; }
.faq-head h2 { max-width: 12ch; }
.faq-item { margin: 0 0 12px; border: 1px solid var(--sf-line-soft); border-radius: 16px; background: rgba(5,10,12,.85); transition: border-color .3s, background .3s; }
.faq-item.open { border-color: rgba(var(--sf-accent-rgb), .45); background: linear-gradient(135deg, rgba(var(--sf-accent-rgb), .07), rgba(5,10,12,.9) 60%); }
.faq-q { display: grid; grid-template-columns: minmax(0, 1fr) 28px; align-items: center; gap: 14px; padding: 22px 26px; cursor: pointer; border-radius: 16px; }
.faq-q:focus-visible { outline: 2px solid var(--sf-accent); outline-offset: 2px; }
.faq-q h3 { font-family: var(--sf-serif); font-size: clamp(18px, 1.6vw, 22px); font-weight: 400; line-height: 1.3; letter-spacing: -.015em; margin: 0; color: #eef1ee; }
.plus { display: grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; border: 1px solid rgba(var(--sf-accent-rgb), .5); color: var(--sf-accent); font-size: 18px; line-height: 1; transition: transform .3s ease, background .3s; }
.faq-item.open .plus { transform: rotate(45deg); background: rgba(var(--sf-accent-rgb), .15); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .4s ease; }
.faq-a .item-copy { padding: 0 60px 26px 26px; font-size: 15.5px; line-height: 1.7; color: #b3bbb7; }
.faq-a .item-copy p { margin: 0 0 .8em; color: inherit; }
.faq-a .item-copy p:last-child { margin-bottom: 0; }

/* ---------- 07 CTA — centred statement ---------- */
.cta-band { padding: 110px 0 150px; overflow: hidden; }
.cta-stage { position: relative; margin-left: clamp(240px, 18vw, 340px); margin-right: clamp(60px, 8vw, 150px); padding: 80px 0; text-align: center; }
.cta-ring { position: absolute; left: 50%; top: 50%; border-radius: 50%; pointer-events: none; transform: translate(-50%, -50%); }
.cta-ring-1 { width: min(560px, 90%); aspect-ratio: 1; border: 1px solid rgba(var(--sf-accent-rgb), .28); box-shadow: 0 0 80px rgba(var(--sf-accent-rgb), .08) inset; }
.cta-ring-2 { width: min(820px, 130%); aspect-ratio: 1; border: 1px dashed rgba(var(--sf-accent-rgb), .18); animation: cta-spin 90s linear infinite; }
@keyframes cta-spin { to { transform: translate(-50%, -50%) rotate(360deg); } }
.cta-inner { position: relative; z-index: 1; display: flex; flex-direction: column; align-items: center; }
.cta-inner h2 { max-width: 14ch; font-size: clamp(40px, 5vw, 74px); margin: 0 0 22px; }
.cta-inner .section-sub { max-width: 46ch; margin: 0 auto 34px; }

/* ---------- Responsive ---------- */
@media (max-width: 1150px) {
  .side-nav, .sf-edge-badge { display: none; }
  .wrap-wide, .cta-stage { margin-left: 32px; margin-right: 32px; max-width: none; }
  .hero-grid { margin-left: 32px; margin-right: 32px; max-width: none; }
  .scroll-cue { left: 32px; }
  section { padding: 76px 0; }
  .poster-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .poster { min-height: 0; }
  .poster:nth-child(even) { margin-top: 32px; }
  .poster-n { font-size: 96px; margin-bottom: 22px; }
  .stairs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stair:nth-child(even) { margin-top: 28px; }
  .faq-layout { grid-template-columns: 1fr; gap: 28px; }
  .faq-head { position: static; }
  .faq-head h2 { max-width: 20ch; }
  .cta-band { padding-bottom: 110px; }
}
@media (max-width: 900px) {
  .hero { align-items: flex-start; padding-top: 100px; }
  .hero-grid { grid-template-columns: 1fr; gap: 56px; }
  .hero-visual { justify-self: center; max-width: 480px; padding-right: 20px; }
  .hero-copy { max-width: 640px; }
  .hv-win, .hv-frame, .hv-back { transform: none; }
  .hv-back-1 { transform: translate(14px, -12px); }
  .hv-back-2 { transform: translate(28px, -24px); }
  /* hub diagram stacks: hub first, then every node on one spine. Tags stay visible. */
  .orbit { margin-top: 36px; }
  .orbit-lines { display: none; }
  .orbit-hub { order: -1; width: 170px; margin: 0 auto 28px; }
  .orbit-row { display: flex; flex-direction: column; gap: 12px; padding-left: 22px; margin-left: 10px; border-left: 1px solid rgba(var(--sf-accent-rgb), .35); }
  .orbit-row--top { margin-bottom: 12px; }
  .orbit-node { padding: 16px 18px 18px; }
  .orbit-node::before { content: ""; position: absolute; left: -23px; top: 28px; width: 22px; height: 1px; background: rgba(var(--fc-rgb), .55); }
}
@media (max-width: 640px) {
  .wrap-wide, .cta-stage { margin-left: 20px; margin-right: 20px; }
  .hero-grid { margin-left: 20px; margin-right: 20px; }
  .scroll-cue { display: none; }
  h1 { font-size: clamp(32px, 9.4vw, 44px); }
  h2 { font-size: clamp(30px, 8.6vw, 40px); max-width: none; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn-primary { width: 100%; }
  .hero-visual { padding-right: 14px; }
  .hv-row { grid-template-columns: 22px minmax(0, 1fr) 54px; gap: 10px; }
  .hv-name { font-size: 17px; }
  .poster-grid, .stairs { grid-template-columns: 1fr; gap: 16px; margin-top: 36px; }
  .poster:nth-child(even), .stair:nth-child(even) { margin-top: 0; }
  .poster { padding: 26px 22px 28px; }
  .poster-n { font-size: 80px; margin-bottom: 16px; }
  .stair { min-height: 0; padding: 24px 22px 26px; }
  .stair h3 { margin-top: 40px; }
  .stair-n { font-size: 92px; }
  /* ledger rows become stacked blocks */
  .lg-head { display: none; }
  .lg-row { grid-template-columns: 1fr; row-gap: 10px; padding: 22px 0; }
  .lg-n { flex-basis: 36px; }
  .lg-what { padding-left: 36px; font-size: 15px; }
  .faq-q { padding: 18px 18px; }
  .faq-a .item-copy { padding: 0 18px 22px; font-size: 15px; }
  .cta-stage { padding: 56px 0; }
  .cta-inner h2 { max-width: none; }
  .cta-inner .btn-primary { width: 100%; }
  .aurora-blob { filter: blur(50px); opacity: .6; }
  .aurora-4 { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto !important; }
  h1 em, h2 em { animation: none; background-position: 35% 50%; }
  .hv-win, .hv-frame, .hv-tick, .hv-meter b, .orbit-hub-ring, .cta-ring-2, .aurora-blob { animation: none !important; }
  .hv-meter b { transform: none; }
  .hv-tick { background: rgba(var(--sf-accent-rgb), .18); }
  .reveal, .stagger > * { opacity: 1; transform: none; transition: none; }
  .ol-path, .ol-arrow, .ol-dot { transition: none; }
  .ol-path { stroke-dashoffset: 0; }
  .ol-arrow, .ol-dot { opacity: 1; }
  .btn-primary:hover, .orbit-node:hover { transform: none; }
  .sf-sound-toggle { transition: none; }
}