/* =========================================================
   StatIQ Lab — "The Instrument"
   A causal-analytics lab rendered as a precision instrument:
   warm near-black canvas, faint plotting grid, one phosphor-green
   signal, technical Space Grotesk over mono readouts.
   ========================================================= */

:root {
  /* ---- surfaces (lifted charcoal-green) ---- */
  --void:      #0e1613;
  --void-2:    #0a120f;
  --panel:     #14201b;
  --panel-2:   #19261f;
  --panel-3:   #1f2d26;

  /* ---- lines / grid ---- */
  --line:      rgba(126,166,146,.13);
  --line-2:    rgba(126,166,146,.22);
  --line-3:    rgba(126,166,146,.34);
  --grid:      rgba(126,166,146,.05);

  /* ---- text ---- */
  --text:      #e7efe9;
  --muted:     #94a99e;
  --faint:     #71887c;

  /* ---- signal (the one accent) ---- */
  --signal:    #35e0a1;
  --signal-2:  #16b57f;
  --signal-3:  #0c7d57;
  --signal-ink:#04140d;
  --glow:      rgba(53,224,161,.09);
  --glow-2:    rgba(53,224,161,.18);

  /* ---- functional (rationed) ---- */
  --amber:     #e7b84e;
  --slate:     #7fa8d8;
  --clay:      #e8794f;

  --maxw: 1240px;
  --pad: clamp(20px, 5vw, 64px);
  --radius: 14px;
  --radius-lg: 20px;
  --radius-panel: 28px;

  --ff-display: "Space Grotesk", "Inter", system-ui, -apple-system, Segoe UI, sans-serif;
  --ff-body: "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --ff-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.34, 1.4, 0.64, 1);
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  font-family: var(--ff-body);
  background: var(--void);
  color: var(--text);
  line-height: 1.65;
  font-size: 16.5px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg, canvas { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
em { font-style: normal; }
strong { font-weight: 600; color: var(--text); }

::selection { background: rgba(53,224,161,.26); color: #fff; }
:focus-visible { outline: 2px solid var(--signal); outline-offset: 3px; border-radius: 4px; }

/* ---------- ambient: plotting grid + radial depth ---------- */
.grid-fx {
  position: fixed; inset: -2px; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(130% 100% at 50% 0%, #000 35%, transparent 92%);
          mask-image: radial-gradient(130% 100% at 50% 0%, #000 35%, transparent 92%);
}
body::before {
  content: ""; position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(900px 620px at 70% -10%, rgba(53,224,161,.10), transparent 60%),
    radial-gradient(760px 640px at 8% 2%, rgba(22,181,127,.06), transparent 58%),
    linear-gradient(180deg, var(--void-2), var(--void) 40%);
}

/* ---------- scroll progress ---------- */
.scroll-progress { position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 200; background: transparent; }
.scroll-progress span {
  display: block; height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--signal-3), var(--signal));
  box-shadow: 0 0 12px var(--glow-2);
}

/* ---------- left plot-axis spine (draws with scroll) ---------- */
.spine { position: fixed; left: 32px; top: 15vh; bottom: 15vh; width: 2px; z-index: 90; background: var(--line-2); border-radius: 2px; }
.spine::before { content: ""; position: absolute; left: -5px; top: 0; bottom: 0; width: 7px; background: repeating-linear-gradient(180deg, var(--line-2) 0 1px, transparent 1px 56px); }
.spine__fill { position: absolute; top: 0; left: 0; width: 100%; height: 0%; border-radius: 2px; background: linear-gradient(180deg, var(--signal-3), var(--signal)); box-shadow: 0 0 8px var(--glow-2); }
.spine__fill::after { content: ""; position: absolute; left: 50%; bottom: -3px; transform: translateX(-50%); width: 7px; height: 7px; border-radius: 50%; background: var(--signal); box-shadow: 0 0 10px var(--glow-2); }
@media (max-width: 1380px) { .spine { display: none; } }

/* ---------- skip link ---------- */
.skip-link {
  position: fixed; top: 12px; left: 50%; transform: translate(-50%, -160%);
  z-index: 400; background: var(--signal); color: var(--signal-ink);
  font-family: var(--ff-body); font-weight: 600; font-size: 14px;
  padding: 11px 20px; border-radius: 999px;
  transition: transform .25s var(--ease);
}
.skip-link:focus-visible { transform: translate(-50%, 0); outline-offset: 4px; }

/* ---------- boot sequence (curtain) ---------- */
.curtain {
  position: fixed; inset: 0; z-index: 300; pointer-events: none;
  background: var(--void); display: none;
  place-items: center; grid-auto-flow: row; align-content: center; justify-items: center; row-gap: 16px;
  animation: curtainUp .6s var(--ease) .7s forwards;
}
.intro .curtain { display: grid; }
.curtain::after {
  content: "// causal engine · online";
  font-family: var(--ff-mono); font-size: 11px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--signal); opacity: 0; animation: bootLine .4s var(--ease) .3s both;
}
.curtain__mark { width: 54px; height: 54px; color: var(--text); animation: markIn .5s var(--ease) both; filter: drop-shadow(0 0 14px var(--glow-2)); }
.curtain__mark rect { fill: var(--signal); }
.curtain__word {
  font-family: var(--ff-display); font-weight: 600; font-size: 19px;
  letter-spacing: -.01em; color: var(--text);
  animation: markIn .5s var(--ease) .12s both;
}
.curtain__word i { font-style: normal; color: var(--signal); }
@keyframes markIn { from { opacity: 0; transform: scale(.7) translateY(8px); } }
@keyframes bootLine { from { opacity: 0; transform: translateY(6px); } to { opacity: .85; } }
@keyframes curtainUp { to { transform: translateY(-101%); visibility: hidden; } }

.js.intro .hw i { animation-delay: calc(.85s + var(--i, 0) * .07s); }

/* js-failed safety net */
.js-failed .reveal, .js-failed .qw, .js-failed .wb-row { opacity: 1 !important; transform: none !important; filter: none !important; }
.js-failed .curtain { display: none !important; }
.js-failed .steps::before { transform: scaleX(1); }

/* parallax */
.js [data-parallax] { transform: translate3d(0, calc(var(--py, 0) * 1px), 0); }

/* =========================================================
   NAV
   ========================================================= */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: background .4s var(--ease), border-color .4s var(--ease), backdrop-filter .4s, box-shadow .4s;
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(8,17,13,.72);
  backdrop-filter: blur(16px) saturate(130%);
  -webkit-backdrop-filter: blur(16px) saturate(130%);
  border-bottom-color: var(--line-2);
}
.nav__inner {
  max-width: var(--maxw); margin: 0 auto;
  padding: 16px var(--pad);
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
}
.brand { display: inline-flex; align-items: center; gap: 11px; color: var(--text); font-family: var(--ff-display); }
.brand__mark { width: 34px; height: 34px; color: var(--text); }
.brand__mark rect { fill: var(--signal); }
.brand__text { font-size: 22px; font-weight: 600; letter-spacing: -.01em; line-height: 1; }
.brand__dim { color: var(--signal); }
.brand__lockup { display: inline-flex; flex-direction: column; justify-content: center; gap: 3px; }
.brand__tagline {
  font-family: var(--ff-mono); font-weight: 400;
  font-size: 10.5px; line-height: 1; color: var(--faint);
  letter-spacing: .04em; white-space: nowrap;
}

.nav__links { display: flex; gap: 30px; }
.nav__links a {
  font-family: var(--ff-mono); font-size: 12.5px; letter-spacing: .02em; color: var(--muted);
  position: relative; transition: color .25s; white-space: nowrap;
}
.nav__links a::after {
  content: ""; position: absolute; left: 0; bottom: -6px; height: 1.5px; width: 0;
  background: var(--signal); box-shadow: 0 0 8px var(--glow-2); transition: width .3s var(--ease);
}
.nav__links a:hover { color: var(--text); }
.nav__links a:hover::after, .nav__links a.is-active::after { width: 100%; }
.nav__links a.is-active { color: var(--signal); }

.nav__toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav__toggle span { display: block; width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: .3s var(--ease); }
.nav__toggle span + span { margin-top: 5px; }
.nav.is-open .nav__toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav.is-open .nav__toggle span:nth-child(2) { opacity: 0; }
.nav.is-open .nav__toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav__mobile {
  display: none; flex-direction: column; gap: 4px;
  padding: 8px var(--pad) 22px;
  background: rgba(8,17,13,.97); backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line-2);
  max-height: calc(100dvh - 62px); overflow-y: auto;
}
.nav__mobile a { padding: 13px 4px; color: var(--muted); border-bottom: 1px solid var(--line); font-family: var(--ff-mono); font-size: 14px; }
.nav__mobile a:last-child { border: 0; margin-top: 10px; text-align: center; }
/* keep the CTA button's own ink colour (beats .nav__mobile a) */
.nav__mobile .btn--primary { color: var(--signal-ink); font-family: var(--ff-body); }

/* =========================================================
   SIDE PLOT DOTS
   ========================================================= */
.dots { position: fixed; right: 26px; top: 50%; transform: translateY(-50%); z-index: 90; display: flex; flex-direction: column; gap: 13px; }
.dots a { width: 16px; height: 16px; position: relative; display: grid; place-items: center; }
.dots a::before {
  content: ""; width: 8px; height: 8px; border-radius: 2px; transform: rotate(45deg);
  background: transparent; border: 1.5px solid var(--faint);
  transition: background .3s, border-color .3s, transform .3s var(--ease-spring), box-shadow .3s;
}
.dots a:hover::before { border-color: var(--signal); }
.dots a.is-active::before { background: var(--signal); border-color: var(--signal); box-shadow: 0 0 0 4px var(--glow); }
.dots a::after {
  content: attr(data-label);
  position: absolute; right: 26px; top: 50%; transform: translateY(-50%) translateX(6px);
  font-family: var(--ff-mono); font-size: 10.5px; letter-spacing: .06em; white-space: nowrap;
  background: var(--panel-2); color: var(--text); padding: 5px 11px; border-radius: 7px; border: 1px solid var(--line-2);
  opacity: 0; pointer-events: none;
  transition: opacity .25s var(--ease), transform .25s var(--ease);
}
.dots a:hover::after, .dots a:focus-visible::after { opacity: 1; transform: translateY(-50%) translateX(0); }
@media (max-width: 1380px) { .dots { display: none; } }

/* =========================================================
   BUTTONS
   ========================================================= */
.btn {
  position: relative; overflow: hidden;
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--ff-body); font-weight: 600; font-size: 15px;
  padding: 14px 24px; border-radius: 999px;
  cursor: pointer; border: 1px solid transparent; white-space: nowrap;
  transition: transform .25s var(--ease), box-shadow .3s var(--ease), background .3s, color .3s, border-color .3s;
}
.btn--sm { padding: 10px 18px; font-size: 13.5px; }
.btn--lg { padding: 16px 30px; font-size: 16px; }

.btn--primary { background: var(--signal); color: var(--signal-ink); box-shadow: 0 0 0 1px var(--signal-2) inset, 0 12px 34px -12px var(--glow-2); }
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 0 0 1px var(--signal) inset, 0 16px 44px -12px var(--glow-2); background: #45ecb0; }
.btn--primary::after {
  content: ""; position: absolute; top: 0; bottom: 0; left: -80%; width: 45%;
  background: linear-gradient(105deg, transparent, rgba(255,255,255,.4), transparent);
  transform: skewX(-20deg); transition: left .6s var(--ease); pointer-events: none;
}
.btn--primary:hover::after { left: 130%; }

.btn--ghost { background: transparent; color: var(--text); border: 1px solid var(--line-3); }
.btn--ghost:hover { border-color: var(--signal); color: var(--signal); transform: translateY(-2px); }

.btn__arrow { transition: transform .3s var(--ease); }
.btn:hover .btn__arrow { transform: translateX(4px); }
.btn:active { transform: translateY(0) scale(.97); }

.nav__cta { background: var(--signal); color: var(--signal-ink); }
.nav__cta:hover { transform: translateY(-1px); background: #45ecb0; box-shadow: 0 10px 26px -12px var(--glow-2); }

.nav__cta-mobile {
  display: none; background: var(--signal); color: var(--signal-ink);
  font-family: var(--ff-body); font-weight: 600; font-size: 13.5px;
  padding: 9px 17px; border-radius: 999px; white-space: nowrap;
  transition: transform .25s var(--ease);
}
.nav__cta-mobile:active { transform: scale(.97); }

/* =========================================================
   SHARED SECTION / EYEBROW
   ========================================================= */
.section { position: relative; z-index: 2; max-width: var(--maxw); margin: 0 auto; padding: clamp(80px, 10vw, 150px) var(--pad); }
.section__head { max-width: 780px; margin-bottom: clamp(44px, 6vw, 76px); }
.section__title {
  font-family: var(--ff-display); font-weight: 600;
  font-size: clamp(30px, 4.6vw, 54px); line-height: 1.05; letter-spacing: -.025em;
  color: var(--text); margin: 20px 0 22px; text-wrap: balance;
}
section[id] { scroll-margin-top: 84px; }
.section__head > .section__title:first-child, .optimizer__head > .section__title:first-child { margin-top: 0; }
.section__title em { color: var(--signal); font-style: normal; }
.section__lead { font-size: clamp(16px, 2vw, 19px); color: var(--muted); max-width: 64ch; }
.section__lead em { color: var(--text); font-weight: 600; }
.section__lead strong { color: var(--text); }

.eyebrow {
  font-family: var(--ff-mono); font-size: 12px; font-weight: 500;
  letter-spacing: .18em; text-transform: uppercase;
  color: var(--signal); display: inline-flex; align-items: center; gap: 10px;
}
.eyebrow::before { content: "//"; color: var(--signal-2); opacity: .8; }
.eyebrow__dot { width: 7px; height: 7px; border-radius: 1px; background: var(--signal); box-shadow: 0 0 8px var(--glow-2); animation: pulseDot 2.4s ease-in-out infinite; }
.eyebrow__dot--static { animation: none; }
@keyframes pulseDot { 0%,100% { opacity: 1; } 50% { opacity: .35; } }

.num { font-family: var(--ff-mono); font-variant-numeric: tabular-nums; }

/* =========================================================
   HERO
   ========================================================= */
.hero {
  position: relative; min-height: 100svh;
  display: flex; flex-direction: column; justify-content: center;
  padding: 132px var(--pad) 88px; overflow: hidden; z-index: 2; text-align: center;
}
.hero__canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; opacity: .46; -webkit-mask-image: radial-gradient(120% 90% at 50% 55%, #000 45%, transparent 90%); mask-image: radial-gradient(120% 90% at 50% 55%, #000 45%, transparent 90%); }
.hero__glow { position: absolute; z-index: 0; width: 720px; height: 720px; right: -180px; top: -160px; background: radial-gradient(circle, var(--glow), transparent 62%); filter: blur(12px); pointer-events: none; }

.hero__inner { position: relative; z-index: 3; max-width: 1000px; margin: 0 auto; width: 100%; }
.hero .eyebrow {
  justify-content: center; font-size: 11.5px; letter-spacing: .16em; gap: 9px;
  padding: 9px 18px; border: 1px solid var(--line-2); border-radius: 999px;
  background: rgba(10,22,17,.6); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
}
.hero .eyebrow::before { content: none; }
.hero__title {
  font-family: var(--ff-display); font-weight: 600; color: var(--text);
  font-size: clamp(46px, 8.4vw, 108px); line-height: 1.0; letter-spacing: -.03em; margin: 30px 0 30px;
}
.hero__line { display: block; }
.hw { display: inline-block; overflow: hidden; vertical-align: bottom; padding-bottom: .08em; margin-bottom: -.08em; }
.hw i { display: inline-block; font-style: normal; will-change: transform; }
.js .hw i { transform: translateY(115%); animation: wordUp 1s var(--ease) forwards; animation-delay: calc(.18s + var(--i, 0) * .07s); }
@keyframes wordUp { to { transform: translateY(0); } }
.hw .serif { color: var(--signal); font-style: normal; text-shadow: 0 0 14px var(--glow-2); }

.hero__sub { font-size: clamp(17px, 2.3vw, 21px); color: var(--muted); max-width: 50ch; margin: 0 auto; line-height: 1.6; }
.hero__sub strong { color: var(--text); }
.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; margin: 38px 0 26px; justify-content: center; }
.hero__note { font-family: var(--ff-mono); font-size: 12.5px; color: var(--faint); max-width: 62ch; margin: 0 auto; line-height: 1.75; letter-spacing: .01em; }
.hero__note-strong { color: var(--signal); }

.hero__scroll { position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%); z-index: 3; width: 24px; height: 40px; border: 1.5px solid var(--line-2); border-radius: 14px; display: grid; place-items: start center; padding-top: 7px; }
.hero__scroll span { width: 4px; height: 8px; border-radius: 4px; background: var(--signal); animation: scrollDot 1.8s var(--ease) infinite; }
@keyframes scrollDot { 0% { opacity: 0; transform: translateY(-2px);} 40% { opacity: 1;} 80%,100% { opacity: 0; transform: translateY(12px);} }

/* =========================================================
   WORKED EXAMPLE / STATS
   ========================================================= */
.stats { position: relative; z-index: 2; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: linear-gradient(180deg, rgba(14,29,22,.5), transparent); }
.stats__grid {
  max-width: var(--maxw); margin: 0 auto;
  padding: clamp(48px, 6vw, 78px) var(--pad) clamp(26px, 3vw, 34px);
  display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 34px 44px; align-items: start;
}
.stat-intro { align-self: start; }
.wex-tag {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--ff-mono); font-size: 10.5px; font-weight: 500; letter-spacing: .14em;
  text-transform: uppercase; color: var(--signal);
  padding: 6px 13px 6px 10px; border-radius: 999px;
  background: rgba(53,224,161,.06); border: 1px solid var(--line-2);
}
.wex-tag__dot { width: 6px; height: 6px; border-radius: 1px; background: var(--signal); box-shadow: 0 0 8px var(--glow-2); animation: pulseDot 2.4s ease-in-out infinite; }
.stat-intro__lead { margin-top: 16px; font-size: 15.5px; color: var(--muted); line-height: 1.5; max-width: 26ch; }
.stat-intro__lead strong { color: var(--text); }

.stat { border-top: 1px solid var(--line-2); padding-top: 18px; }
.stat__kick { display: block; font-family: var(--ff-mono); font-size: 10.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--faint); margin-bottom: 14px; }
.stat__num { font-family: var(--ff-display); font-weight: 600; font-size: clamp(38px, 4.8vw, 56px); line-height: 1; color: var(--text); display: block; margin-bottom: 12px; letter-spacing: -.02em; }
.stat--hero .stat__num { color: var(--signal); text-shadow: 0 0 16px var(--glow-2); }
.stat__num .num { font-family: var(--ff-display); }
.stat__label { font-size: 14.5px; color: var(--muted); line-height: 1.5; }
.stat__label strong { color: var(--text); }
.stats__foot { max-width: var(--maxw); margin: 0 auto; padding: 2px var(--pad) clamp(46px, 5.5vw, 64px); font-family: var(--ff-mono); font-size: 11.5px; letter-spacing: .01em; color: var(--faint); line-height: 1.7; }

/* =========================================================
   CARDS (shared surface)
   ========================================================= */
.svc-grid { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 20px; align-items: stretch; }
.svc, .leak-card, .proof-card, .founder {
  position: relative; background: var(--panel-2); border: 1px solid var(--line); border-radius: var(--radius-lg);
  transition: transform .4s var(--ease), border-color .4s, box-shadow .4s, background .4s;
}
.svc:hover, .leak-card:hover, .proof-card:hover, .founder:hover {
  transform: translateY(-3px); border-color: var(--line-3); background: var(--panel-3);
  box-shadow: 0 24px 50px -30px rgba(0,0,0,.7), 0 0 30px -18px var(--glow-2);
}
.svc { padding: 30px 28px; display: flex; flex-direction: column; }
.svc--flag { border-color: var(--line-3); background: linear-gradient(180deg, rgba(53,224,161,.07), var(--panel-2)); box-shadow: 0 24px 60px -40px var(--glow-2); }
.svc--flag:hover { border-color: var(--signal-2); }
.svc__tag {
  position: absolute; top: 18px; right: 18px;
  font-family: var(--ff-mono); font-size: 9.5px; font-weight: 500; letter-spacing: .13em;
  text-transform: uppercase; color: var(--signal);
  padding: 4px 10px; border-radius: 999px; background: rgba(53,224,161,.09); border: 1px solid var(--line-2);
}
.svc__icon { width: 46px; height: 46px; color: var(--signal); margin-bottom: 18px; filter: drop-shadow(0 0 10px var(--glow)); }
.svc__icon svg { width: 100%; height: 100%; }
.svc h3 { font-family: var(--ff-display); font-weight: 600; font-size: 22px; letter-spacing: -.01em; color: var(--text); margin-bottom: 10px; line-height: 1.25; }
.svc p { font-size: 14.5px; color: var(--muted); line-height: 1.6; flex: 1; }
.svc p em { color: var(--text); }
.svc__link { margin-top: 22px; padding-top: 14px; border-top: 1px solid var(--line); font-family: var(--ff-mono); font-size: 12.5px; color: var(--signal); display: inline-flex; align-items: center; gap: 7px; }
.svc__link span { transition: transform .3s var(--ease); }
.svc__link:hover span { transform: translateX(4px); }

/* =========================================================
   THE LEAK
   ========================================================= */
.leaks { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.leak-card { padding: 28px; overflow: hidden; }
.leak-card__n { font-family: var(--ff-mono); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--clay); }
.leak-card h3 { font-family: var(--ff-display); font-weight: 600; font-size: 21px; margin: 8px 0 10px; letter-spacing: -.01em; color: var(--text); line-height: 1.25; }
.leak-card p { font-size: 14.5px; color: var(--muted); line-height: 1.55; }
.leak-card__viz { height: 74px; margin-bottom: 22px; border-radius: 12px; background: var(--void); border: 1px solid var(--line); display: flex; align-items: flex-end; gap: 7px; padding: 12px 14px; overflow: hidden; }
.leak-card__viz--subsidy span { flex: 1; height: var(--h); border-radius: 3px 3px 0 0; position: relative; background: linear-gradient(180deg, #33453c, #1c2a24); transform-origin: bottom; }
.leak-card__viz--subsidy span::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 0%; background: var(--clay); opacity: .8; border-radius: 0 0 2px 2px; transition: height 1s var(--ease) .4s; }
.leak-card.is-visible .leak-card__viz--subsidy span::after { height: 42%; }
.leak-card.is-visible .leak-card__viz--subsidy span:nth-child(2)::after { height: 30%; transition-delay: .5s; }
.leak-card.is-visible .leak-card__viz--subsidy span:nth-child(3)::after { height: 52%; transition-delay: .6s; }
.leak-card.is-visible .leak-card__viz--subsidy span:nth-child(4)::after { height: 26%; transition-delay: .7s; }
.leak-card.is-visible .leak-card__viz--subsidy span:nth-child(5)::after { height: 46%; transition-delay: .8s; }
.leak-card.is-visible .leak-card__viz--subsidy span:nth-child(6)::after { height: 34%; transition-delay: .9s; }
.leak-card__viz svg { width: 100%; height: 100%; color: var(--clay); }
.leak-spike { stroke-dasharray: 340; stroke-dashoffset: 340; }
.leak-card.is-visible .leak-spike { animation: drawLine 1.6s var(--ease) .35s forwards; }
@keyframes drawLine { to { stroke-dashoffset: 0; } }
.leak-card__viz--swap { align-items: center; justify-content: center; gap: 18px; }
.swap-bar { display: flex; flex-direction: column; align-items: center; gap: 4px; height: 100%; justify-content: flex-end; }
.swap-bar b { width: 26px; border-radius: 4px 4px 0 0; transition: height 1.1s var(--ease) .45s; }
.swap-bar label { font-family: var(--ff-mono); font-size: 9.5px; color: var(--faint); }
.swap-bar--up b { height: 26%; background: linear-gradient(180deg, #33453c, #1c2a24); }
.swap-bar--down b { height: 66%; background: linear-gradient(180deg, var(--clay), rgba(232,121,79,.35)); }
.leak-card.is-visible .swap-bar--up b { height: 66%; }
.leak-card.is-visible .swap-bar--down b { height: 26%; }
.swap-arrow { color: var(--faint); font-size: 17px; padding-bottom: 14px; }
.leak__net { margin-top: 36px; text-align: center; font-size: 15.5px; color: var(--muted); }
.leak__net strong { color: var(--text); }

/* =========================================================
   ELEVATED PANELS (flagship + contact)
   ========================================================= */
.section--dark {
  background: var(--panel); border: 1px solid var(--line-2);
  border-radius: var(--radius-panel); overflow: hidden;
  width: min(calc(var(--maxw) + 80px), calc(100% - 2 * var(--pad)));
  margin: clamp(40px, 6vw, 80px) auto;
  padding: clamp(56px, 8vw, 108px) clamp(28px, 6vw, 80px);
  box-shadow: 0 40px 120px -60px #000, 0 0 60px -40px var(--glow-2);
}
.section--dark > * { position: relative; z-index: 1; }
.aurora {
  position: absolute; z-index: 0; inset: -30%;
  background:
    radial-gradient(38% 34% at 24% 70%, var(--glow-2), transparent 70%),
    radial-gradient(30% 30% at 78% 24%, rgba(53,224,161,.10), transparent 70%),
    radial-gradient(26% 28% at 62% 82%, rgba(22,181,127,.14), transparent 70%);
  filter: blur(48px); animation: aurora 22s ease-in-out infinite alternate; pointer-events: none;
}
@keyframes aurora { from { transform: rotate(0deg) scale(1); } to { transform: rotate(8deg) scale(1.12); } }

/* =========================================================
   THE OPTIMIZER
   ========================================================= */
.optimizer__head { max-width: 780px; margin-bottom: clamp(44px, 6vw, 64px); }
.optimizer__grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: clamp(32px, 5vw, 64px); align-items: center; }
.workbook-wrap { perspective: 1100px; }
.workbook { background: var(--void); border: 1px solid var(--line-2); border-radius: var(--radius-lg); box-shadow: 0 40px 90px -40px #000, 0 0 0 1px rgba(53,224,161,.05) inset; overflow: hidden; transform-style: preserve-3d; transition: transform .35s var(--ease); }
.workbook__head { display: flex; justify-content: space-between; align-items: center; padding: 16px 20px; border-bottom: 1px solid var(--line); }
.workbook__title { font-family: var(--ff-mono); font-size: 11.5px; letter-spacing: .14em; color: var(--muted); }
.workbook__title b { color: var(--text); font-weight: 500; }
.workbook__live { font-family: var(--ff-mono); font-size: 10.5px; color: var(--signal); display: inline-flex; align-items: center; gap: 6px; }
.workbook__live span { width: 6px; height: 6px; border-radius: 50%; background: var(--signal); box-shadow: 0 0 8px var(--glow-2); animation: pulseDot 1.6s infinite; }
.workbook__live--static { color: var(--muted); }
.workbook__live--static span { animation: none; background: var(--faint); box-shadow: none; }
.workbook__cols { display: grid; grid-template-columns: 1.5fr .9fr 1.1fr 74px; gap: 10px; padding: 10px 20px 8px; font-family: var(--ff-mono); font-size: 9.5px; letter-spacing: .12em; text-transform: uppercase; color: var(--faint); }
.workbook__rows { display: flex; flex-direction: column; }
.wb-row { display: grid; grid-template-columns: 1.5fr .9fr 1.1fr 74px; gap: 10px; align-items: center; padding: 12px 20px; border-top: 1px solid var(--line); font-size: 13px; transition: background .5s; }
.js [data-reveal] .wb-row, .js .workbook-wrap .wb-row { opacity: 0; transform: translateY(14px); }
.workbook-wrap.is-visible .wb-row { animation: rowIn .7s var(--ease) forwards; }
.workbook-wrap.is-visible .wb-row:nth-child(1) { animation-delay: .25s; }
.workbook-wrap.is-visible .wb-row:nth-child(2) { animation-delay: .40s; }
.workbook-wrap.is-visible .wb-row:nth-child(3) { animation-delay: .55s; }
.workbook-wrap.is-visible .wb-row:nth-child(4) { animation-delay: .70s; }
.workbook-wrap.is-visible .wb-row:nth-child(5) { animation-delay: .85s; }
@keyframes rowIn { to { opacity: 1; transform: translateY(0); } }
.wb-row.is-updating { background: rgba(53,224,161,.1); }
.wb-row__prod { color: var(--text); font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.wb-row__city { color: var(--muted); }
.wb-row__price { font-family: var(--ff-mono); font-size: 12px; color: var(--muted); white-space: nowrap; }
.wb-row__price i { font-style: normal; color: var(--faint); padding: 0 1px; }
.wb-row__price b { color: var(--text); font-weight: 500; }
.wb-row.is-updating .wb-row__price b { color: var(--signal); }
.workbook__foot { display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; padding: 14px 20px; border-top: 1px solid var(--line); font-family: var(--ff-mono); font-size: 11px; color: var(--muted); }
.workbook__foot b { color: var(--signal); font-weight: 500; }
.workbook__caption { margin-top: 14px; font-size: 12.5px; color: var(--muted); font-family: var(--ff-mono); }

.chip { font-family: var(--ff-mono); font-size: 10.5px; font-weight: 500; letter-spacing: .08em; text-transform: uppercase; padding: 4px 10px; border-radius: 999px; text-align: center; border: 1px solid transparent; display: inline-block; }
.chip--raise  { color: var(--signal); background: rgba(53,224,161,.14); border-color: rgba(53,224,161,.34); }
.chip--invest { color: var(--slate); background: rgba(127,168,216,.13); border-color: rgba(127,168,216,.3); }
.chip--hold   { color: var(--muted); background: rgba(255,255,255,.05); border-color: var(--line-2); }
.chip--test   { color: var(--amber); background: rgba(231,184,78,.12); border-color: rgba(231,184,78,.3); }

.actions4 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.action4 { padding: 22px; border-radius: var(--radius); border: 1px solid var(--line); background: rgba(255,255,255,.02); transition: transform .3s var(--ease), border-color .3s, background .3s; }
.action4:hover { transform: translateY(-2px); background: rgba(255,255,255,.04); border-color: var(--line-2); }
.action4__chip { margin-bottom: 12px; font-size: 11.5px; padding: 5px 12px; }
.action4 p { font-size: 14px; color: var(--muted); line-height: 1.5; }

.optimizer__subhead { font-family: var(--ff-display); font-weight: 600; font-size: clamp(21px, 2.6vw, 27px); letter-spacing: -.015em; color: var(--text); margin-bottom: 26px; }
.optimizer__subhead em { color: var(--signal); font-style: normal; }
.rhythm { margin-top: clamp(56px, 7vw, 88px); }
.rhythm__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.rhythm__item { padding: 22px; border-radius: var(--radius); border: 1px solid var(--line); background: rgba(255,255,255,.02); transition: transform .3s var(--ease), border-color .3s; }
.rhythm__item:hover { transform: translateY(-2px); border-color: rgba(53,224,161,.4); }
.rhythm__when { font-family: var(--ff-mono); font-size: 10px; letter-spacing: .13em; text-transform: uppercase; color: var(--signal); display: inline-block; margin-bottom: 12px; padding: 4px 10px; border-radius: 999px; background: rgba(53,224,161,.1); border: 1px solid var(--line-2); }
.rhythm__item h4 { font-family: var(--ff-display); font-weight: 600; font-size: 17.5px; color: var(--text); margin-bottom: 6px; letter-spacing: -.01em; }
.rhythm__item p { font-size: 13.5px; color: var(--muted); line-height: 1.5; }

.rails { margin-top: clamp(56px, 7vw, 88px); }
.rails__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.rail { padding: 20px 22px; border-radius: var(--radius); border: 1px solid rgba(53,224,161,.2); background: rgba(53,224,161,.045); transition: transform .3s var(--ease), border-color .3s; }
.rail:hover { transform: translateY(-2px); border-color: rgba(53,224,161,.5); }
.rail b { display: block; font-family: var(--ff-display); font-weight: 600; font-size: 16px; color: var(--text); margin-bottom: 6px; letter-spacing: -.01em; }
.rail p { font-size: 13.5px; color: var(--muted); line-height: 1.5; }
.optimizer__micro { margin-top: 26px; font-family: var(--ff-mono); font-size: 12.5px; color: var(--muted); }

.optimizer__cta { margin-top: clamp(44px, 5.5vw, 68px); display: flex; flex-wrap: wrap; align-items: center; gap: 16px 22px; padding-top: clamp(28px, 3.5vw, 40px); border-top: 1px solid var(--line-2); }
.optimizer__cta-note { font-family: var(--ff-mono); font-size: 12.5px; color: var(--muted); line-height: 1.5; }

/* =========================================================
   PROOF
   ========================================================= */
.proof__grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(36px, 5vw, 72px); align-items: center; }
.donut-wrap { display: flex; flex-direction: column; align-items: center; gap: 22px; }
.donut { position: relative; width: min(320px, 78vw); }
.donut svg { transform: rotate(-90deg); }
.donut circle { fill: none; stroke-width: 24; }
.donut__track { stroke: var(--line); }
.donut__val { stroke: var(--signal); stroke-linecap: round; stroke-dasharray: 502.65; stroke-dashoffset: 502.65; filter: drop-shadow(0 0 6px var(--glow-2)); transition: stroke-dashoffset 1.6s var(--ease) .3s; }
.donut.in-view .donut__val { stroke-dashoffset: 452.4; }
.donut__center { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; gap: 4px; }
.donut__big { font-family: var(--ff-display); font-weight: 600; font-size: clamp(40px, 6vw, 56px); line-height: 1; color: var(--signal); letter-spacing: -.02em; text-shadow: 0 0 16px var(--glow-2); }
.donut__big .num { font-family: var(--ff-display); }
.donut__label { font-size: 13px; color: var(--muted); line-height: 1.4; }
.donut__legend { display: flex; flex-direction: column; gap: 8px; font-family: var(--ff-mono); font-size: 12px; color: var(--muted); }
.donut__legend .dot { display: inline-block; width: 9px; height: 9px; border-radius: 2px; margin-right: 8px; }
.dot--green { background: var(--signal); box-shadow: 0 0 6px var(--glow-2); }
.dot--soft { background: #33453c; }

.proof__cards { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.proof-card { padding: 24px; }
.proof-card__big { display: block; font-family: var(--ff-display); font-weight: 600; font-size: clamp(22px, 2.6vw, 28px); color: var(--signal); letter-spacing: -.015em; margin-bottom: 10px; line-height: 1.15; }
.proof-card__big .num { font-family: var(--ff-display); }
.proof-card__big em { font-style: normal; font-size: .6em; color: var(--muted); font-weight: 500; }
.proof-card h3 { font-family: var(--ff-display); font-weight: 600; font-size: 16.5px; color: var(--text); letter-spacing: -.01em; line-height: 1.35; margin-bottom: 8px; }
.proof-card p { font-size: 14.5px; color: var(--muted); line-height: 1.55; }

/* confidence gauges — evidence strength as an instrument readout */
.gauge { margin-top: 18px; }
.gauge i { display: block; font-family: var(--ff-mono); font-size: 9px; font-style: normal; letter-spacing: .14em; text-transform: uppercase; color: var(--faint); margin-bottom: 7px; }
.gauge > span { display: block; height: 3px; border-radius: 2px; background: var(--line-2); position: relative; overflow: hidden; }
.gauge > span::after { content: ""; position: absolute; left: 0; top: 0; height: 100%; width: 0; border-radius: 2px; background: var(--signal); box-shadow: 0 0 8px var(--glow-2); transition: width 1.5s var(--ease) .35s; }
.proof-card.is-visible .gauge > span::after { width: var(--lvl, 100%); }
.gauge--mid > span::after { background: var(--amber); box-shadow: 0 0 8px rgba(231,184,78,.4); }
.gauge--low i { color: var(--clay); }
.gauge--low > span::after { background: var(--clay); box-shadow: 0 0 8px rgba(232,121,79,.4); }
.proof__foot { margin-top: 44px; text-align: center; font-size: 14px; color: var(--muted); max-width: 76ch; margin-inline: auto; line-height: 1.7; }
.proof__foot strong { color: var(--text); }

.workbook-shot { max-width: 900px; margin: clamp(36px, 4.5vw, 56px) auto 0; }
.workbook-shot__frame { position: relative; border: 1px solid var(--line-2); border-radius: var(--radius-lg); overflow: hidden; background: var(--panel-2); box-shadow: 0 34px 66px -36px #000; }
@media (max-width: 640px) { .workbook-shot__frame::after { content: ""; position: absolute; top: 46px; right: 0; bottom: 0; width: 42px; z-index: 2; background: linear-gradient(90deg, rgba(14,29,22,0), var(--panel-2) 78%); pointer-events: none; } }
.workbook-shot__bar { display: flex; align-items: center; gap: 10px; padding: 11px 16px; background: var(--void); border-bottom: 1px solid var(--line); }
.wbs-badge { font-family: var(--ff-mono); font-size: 9.5px; font-weight: 500; letter-spacing: .1em; color: var(--signal-ink); background: var(--signal); border-radius: 5px; padding: 3px 7px; }
.workbook-shot__file { font-family: var(--ff-mono); font-size: 12px; color: var(--muted); }
.workbook-shot__meta { margin-left: auto; font-family: var(--ff-mono); font-size: 10.5px; color: var(--faint); }
.workbook-shot__scroll { overflow-x: auto; }
.workbook-shot__table { width: 100%; min-width: 640px; border-collapse: collapse; font-size: 13.5px; }
.workbook-shot__table th, .workbook-shot__table td { padding: 12px 18px; text-align: left; border-bottom: 1px solid var(--line); white-space: nowrap; }
.workbook-shot__table thead th { font-family: var(--ff-mono); font-size: 10.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--faint); background: var(--void); }
.workbook-shot__table tbody td { color: var(--muted); }
.workbook-shot__table tbody td:first-child { font-weight: 500; color: var(--text); }
.workbook-shot__table .num-col { text-align: right; font-family: var(--ff-mono); }
.workbook-shot__table tbody tr { transition: background .2s; }
.workbook-shot__table tbody tr:hover { background: rgba(255,255,255,.02); }
.workbook-shot__table tfoot td { padding: 14px 18px; font-family: var(--ff-mono); font-size: 12.5px; color: var(--muted); background: rgba(53,224,161,.06); border-top: 1px solid var(--line-2); border-bottom: 0; }
.workbook-shot__table tfoot .num-col { color: var(--signal); font-weight: 600; font-size: 14.5px; }
.wbs-tag { display: inline-block; font-family: var(--ff-mono); font-size: 10.5px; font-weight: 500; letter-spacing: .04em; text-transform: uppercase; padding: 3px 10px; border-radius: 999px; border: 1px solid transparent; }
.wbs-tag--raise  { color: var(--signal); background: rgba(53,224,161,.12); border-color: rgba(53,224,161,.32); }
.wbs-tag--invest { color: var(--slate); background: rgba(127,168,216,.1); border-color: rgba(127,168,216,.28); }
.wbs-tag--hold   { color: var(--faint); background: rgba(255,255,255,.03); border-color: var(--line); }
.wbs-tag--test   { color: var(--amber); background: rgba(231,184,78,.1); border-color: rgba(231,184,78,.3); }
.workbook-shot__cap { margin-top: 18px; font-size: 13.5px; color: var(--muted); line-height: 1.6; text-align: center; max-width: 70ch; margin-inline: auto; }
.workbook-shot__cap strong { color: var(--signal); }

/* =========================================================
   PULL QUOTE
   ========================================================= */
.quote { padding-top: 0; text-align: center; }
.quote__block { max-width: 900px; margin: 0 auto; }
.quote__text { font-family: var(--ff-display); font-weight: 500; font-size: clamp(30px, 5vw, 60px); line-height: 1.18; letter-spacing: -.02em; color: var(--text); }
.qw { display: inline-block; }
.js .qw { opacity: .12; transition: opacity .7s var(--ease); transition-delay: calc(var(--i, 0) * 85ms); }
.js .quote.is-visible .qw { opacity: 1; }
.qw--accent { color: var(--signal); text-shadow: 0 0 14px var(--glow-2); }
.quote__cite { margin-top: 26px; font-family: var(--ff-mono); font-size: 13px; color: var(--muted); letter-spacing: .02em; }

/* =========================================================
   METHOD
   ========================================================= */
.steps { list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; position: relative; }
.steps::before { content: ""; position: absolute; top: 27px; left: 6%; right: 6%; height: 2px; background: linear-gradient(90deg, var(--signal), var(--signal-3)); box-shadow: 0 0 10px var(--glow); transform: scaleX(0); transform-origin: left; transition: transform 1.6s var(--ease) .25s; }
.steps.is-visible::before { transform: scaleX(1); }
.js .steps.is-visible .step__num { animation: numPop .55s var(--ease) backwards; }
.js .steps.is-visible .step:nth-child(1) .step__num { animation-delay: .20s; }
.js .steps.is-visible .step:nth-child(2) .step__num { animation-delay: .45s; }
.js .steps.is-visible .step:nth-child(3) .step__num { animation-delay: .70s; }
.js .steps.is-visible .step:nth-child(4) .step__num { animation-delay: .95s; }
@keyframes numPop { from { opacity: 0; transform: scale(.72); } }
.step { position: relative; padding: 0 18px; }
.step:first-child { padding-left: 0; }
.step:last-child { padding-right: 0; }
.step__num { position: relative; z-index: 2; display: inline-grid; place-items: center; width: 54px; height: 54px; border-radius: 12px; font-family: var(--ff-mono); font-size: 15px; color: var(--signal-ink); background: var(--signal); margin-bottom: 22px; box-shadow: 0 0 0 6px var(--void), 0 0 26px -6px var(--glow-2); transition: transform .3s var(--ease); }
.step:hover .step__num { transform: scale(1.04); }
.step__body h3 { font-family: var(--ff-display); font-weight: 600; font-size: 21px; margin-bottom: 10px; letter-spacing: -.01em; color: var(--text); }
.step__body p { font-size: 14.5px; color: var(--muted); line-height: 1.55; }
.method__micro { margin-top: 40px; font-family: var(--ff-mono); font-size: 12.5px; color: var(--faint); }

/* =========================================================
   COMPARISON
   ========================================================= */
.compare { padding-top: 0; }
.table-frame { position: relative; }
.table-scroll { overflow-x: auto; border-radius: var(--radius-lg); border: 1px solid var(--line-2); }
@media (max-width: 640px) { .table-frame::after { content: ""; position: absolute; top: 1px; right: 1px; bottom: 1px; width: 40px; z-index: 2; border-radius: 0 var(--radius-lg) var(--radius-lg) 0; background: linear-gradient(90deg, rgba(10,22,17,0), var(--panel-2) 80%); pointer-events: none; } }
.cmp { width: 100%; min-width: 640px; border-collapse: collapse; background: var(--panel-2); }
.cmp th, .cmp td { padding: 18px 22px; text-align: left; font-size: 14.5px; border-bottom: 1px solid var(--line); }
.cmp thead th { font-family: var(--ff-mono); font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--faint); background: var(--void); border-bottom: 1px solid var(--line-2); }
.cmp tbody th { font-family: var(--ff-display); font-weight: 600; color: var(--text); font-size: 15px; letter-spacing: -.01em; white-space: nowrap; }
.cmp td { color: var(--muted); }
.cmp tbody tr:last-child th, .cmp tbody tr:last-child td { border-bottom: 0; }
.cmp tbody tr { transition: background .25s; }
.cmp tbody tr:hover { background: rgba(255,255,255,.02); }
.cmp .cmp__us { background: rgba(53,224,161,.07); color: var(--signal); font-weight: 600; }
.cmp thead .cmp__us { color: var(--signal); background: rgba(53,224,161,.1); border-bottom-color: var(--line-3); }
.cmp tbody .cmp__us { border-bottom-color: var(--line-2); }

/* =========================================================
   ABOUT / FOUNDER
   ========================================================= */
.about { padding-top: clamp(40px, 5vw, 72px); }
.about__grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(36px, 5vw, 72px); align-items: center; }
.about__intro .section__title { margin-top: 18px; }
.about__intro .section__lead { margin-top: 4px; }
.about__vision { margin-top: 24px; font-size: 16px; color: var(--muted); max-width: 52ch; border-left: 2px solid var(--signal-3); padding-left: 16px; }
.founder { padding: 32px; }
.founder__head { display: flex; align-items: center; gap: 18px; margin-bottom: 18px; }
.founder__photo { width: 84px; height: 84px; border-radius: 16px; overflow: hidden; flex: none; background: rgba(53,224,161,.08); border: 1px solid var(--line-2); display: grid; place-items: center; font-family: var(--ff-display); font-weight: 600; font-size: 30px; color: var(--signal); }
.founder__photo img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(1); }
.founder__name { font-family: var(--ff-display); font-weight: 600; font-size: 20px; color: var(--text); letter-spacing: -.01em; }
.founder__role { display: block; margin-top: 6px; font-family: var(--ff-mono); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--faint); }
.founder__bio { font-size: 15px; color: var(--muted); line-height: 1.65; }
.founder__bio strong { color: var(--text); }
.founder__links { margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--line); display: flex; gap: 22px; flex-wrap: wrap; }
.founder__links a { font-family: var(--ff-mono); font-size: 13px; color: var(--signal); display: inline-flex; align-items: center; gap: 7px; border-bottom: 1px solid transparent; transition: border-color .25s; }
.founder__links a:hover { border-bottom-color: var(--signal); }

/* =========================================================
   ENGAGEMENT (timeline)
   ========================================================= */
.timeline { list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; position: relative; padding-top: 10px; }
.timeline::before { content: ""; position: absolute; top: 15px; left: 2%; right: 2%; height: 2px; background: var(--line-2); border-radius: 2px; }
.timeline::after { content: ""; position: absolute; top: 15px; left: 2%; height: 2px; width: 0; background: linear-gradient(90deg, var(--signal-3), var(--signal)); box-shadow: 0 0 10px var(--glow); border-radius: 2px; transition: width 1.8s var(--ease) .3s; }
.timeline.is-visible::after { width: 96%; }
.tl { position: relative; padding-top: 34px; }
.tl__dot { position: absolute; top: 8px; left: 0; z-index: 2; width: 16px; height: 16px; border-radius: 50%; background: var(--void); border: 3px solid var(--signal); box-shadow: 0 0 0 5px var(--void), 0 0 10px var(--glow-2); transform: scale(0); transition: transform .5s var(--ease-spring); }
.timeline.is-visible .tl:nth-child(1) .tl__dot { transform: scale(1); transition-delay: .35s; }
.timeline.is-visible .tl:nth-child(2) .tl__dot { transform: scale(1); transition-delay: .75s; }
.timeline.is-visible .tl:nth-child(3) .tl__dot { transform: scale(1); transition-delay: 1.15s; }
.timeline.is-visible .tl:nth-child(4) .tl__dot { transform: scale(1); transition-delay: 1.55s; }
.tl__tag { font-family: var(--ff-mono); font-size: 11px; letter-spacing: .13em; text-transform: uppercase; color: var(--signal); display: inline-block; margin-bottom: 10px; background: rgba(53,224,161,.08); border: 1px solid var(--line-2); padding: 4px 10px; border-radius: 999px; }
.tl h3 { font-family: var(--ff-display); font-weight: 600; font-size: 21px; letter-spacing: -.01em; color: var(--text); margin-bottom: 8px; }
.tl p { font-size: 14.5px; color: var(--muted); line-height: 1.55; }
.engagement__note { margin-top: 48px; text-align: center; font-size: 15px; color: var(--muted); max-width: 72ch; margin-inline: auto; line-height: 1.65; }
.engagement__note strong { color: var(--signal); }

/* =========================================================
   FAQ
   ========================================================= */
.faq { padding-top: 0; }
.faq__list { max-width: 820px; margin: 0 auto; border-top: 1px solid var(--line-2); }
.faq__item { border-bottom: 1px solid var(--line-2); }
.faq__item summary { cursor: pointer; list-style: none; position: relative; padding: 22px 44px 22px 2px; font-family: var(--ff-display); font-weight: 600; font-size: 17px; color: var(--text); letter-spacing: -.01em; transition: color .25s; }
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary:hover { color: var(--signal); }
.faq__item summary::after { content: "+"; position: absolute; right: 6px; top: 50%; transform: translateY(-50%); font-family: var(--ff-mono); font-weight: 400; font-size: 19px; color: var(--faint); transition: transform .3s var(--ease), color .25s; }
.faq__item[open] summary::after { transform: translateY(-50%) rotate(45deg); color: var(--signal); }
.faq__item p { padding: 0 44px 24px 2px; font-size: 15px; color: var(--muted); line-height: 1.65; max-width: 72ch; }
.faq__item p strong { color: var(--text); }

/* =========================================================
   CONTACT (elevated panel)
   ========================================================= */
.contact { text-align: center; }
.contact__inner { position: relative; max-width: 880px; margin: 0 auto; overflow: hidden; padding: clamp(56px, 8vw, 100px) clamp(28px, 6vw, 70px); border-radius: var(--radius-panel); background: var(--panel); border: 1px solid var(--line-2); box-shadow: 0 40px 120px -60px #000, 0 0 60px -40px var(--glow-2); }
.contact__inner > * { position: relative; z-index: 1; }
.contact__title { font-family: var(--ff-display); font-weight: 600; font-size: clamp(34px, 6vw, 62px); line-height: 1.04; letter-spacing: -.025em; color: var(--text); }
.contact__title em { color: var(--signal); font-style: normal; text-shadow: 0 0 16px var(--glow-2); }
.contact__sub { font-size: clamp(16px, 2vw, 19px); color: var(--muted); max-width: 56ch; margin: 24px auto 36px; line-height: 1.6; }
.contact__cta { display: flex; flex-direction: column; align-items: center; gap: 18px; }
.contact__email { font-family: var(--ff-mono); font-size: 15px; color: var(--signal); border-bottom: 1px solid transparent; transition: border-color .3s; }
.contact__email:hover { border-bottom-color: var(--signal); }
.contact__micro { margin-top: 28px; font-family: var(--ff-mono); font-size: 12.5px; color: var(--faint); }

/* =========================================================
   FOOTER
   ========================================================= */
.footer { position: relative; z-index: 2; border-top: 1px solid var(--line-2); background: var(--void-2); }
.footer__top { max-width: var(--maxw); margin: 0 auto; padding: clamp(44px, 5.5vw, 64px) var(--pad) 36px; display: flex; justify-content: space-between; align-items: flex-start; gap: 32px 56px; flex-wrap: wrap; }
.footer__brand { max-width: 34ch; }
.footer__brand .brand { display: inline-flex; }
.footer__pitch { font-size: 14.5px; color: var(--muted); line-height: 1.55; margin-top: 14px; }
.footer__col { display: flex; flex-direction: column; gap: 13px; align-items: flex-start; }
.footer__head { font-family: var(--ff-mono); font-size: 10.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--faint); margin-bottom: 4px; }
.footer__col a, .footer__col span { font-size: 14.5px; color: var(--muted); }
.footer__col a { transition: color .25s var(--ease); }
.footer__col a:hover { color: var(--signal); }
.footer__nav { display: grid; grid-auto-flow: column; grid-template-rows: repeat(4, auto); gap: 13px 48px; align-content: start; }
.footer__nav a { justify-self: start; font-size: 14.5px; color: var(--muted); transition: color .25s var(--ease); }
.footer__nav a:hover { color: var(--signal); }
.footer__base { max-width: var(--maxw); margin: 0 auto; padding: 22px var(--pad); border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-family: var(--ff-mono); font-size: 11.5px; color: var(--faint); }

/* =========================================================
   NODE-NETWORK FX (contact)
   ========================================================= */
.panel-fx { width: 100%; height: 100%; pointer-events: none; opacity: .9; }
.contact__inner > .panel-fx { position: absolute; inset: 0; z-index: 0; }
.panel-fx .fx-links line { stroke: var(--line-2); stroke-width: 1; }
.panel-fx .flow { stroke: var(--signal); stroke-width: 1.6; stroke-linecap: round; stroke-dasharray: 5 600; filter: drop-shadow(0 0 4px var(--glow-2)); }
.panel-fx .f1 { animation: fxFlow 3s linear infinite; }
.panel-fx .f2 { animation: fxFlow 3.4s linear infinite .6s; }
.panel-fx .f3 { animation: fxFlow 4s linear infinite 1.1s; }
.panel-fx .f4 { animation: fxFlow 3.2s linear infinite 1.7s; }
@keyframes fxFlow { from { stroke-dashoffset: 0; } to { stroke-dashoffset: -605; } }
.panel-fx .fx-nodes circle { fill: rgba(148,169,158,.4); }
.panel-fx .pulse { fill: var(--signal); filter: drop-shadow(0 0 5px var(--glow-2)); animation: fxPulse 2.8s ease-in-out infinite; }
.panel-fx .p2 { animation-delay: .5s; }
.panel-fx .p3 { animation-delay: 1s; }
.panel-fx .p4 { animation-delay: 1.5s; }
@keyframes fxPulse { 0%, 100% { opacity: .35; } 50% { opacity: 1; } }

/* =========================================================
   REVEAL
   ========================================================= */
.js .reveal { transition: opacity .6s var(--ease), transform .6s var(--ease), border-color .35s var(--ease), box-shadow .35s var(--ease), background-color .35s var(--ease); }
.js :where(.reveal:not(.is-visible)) { opacity: 0; transform: translateY(16px); }
.js .reveal.is-rested { transition-delay: 0s; transition-duration: .5s; }
.js .steps:not(.is-visible) { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: .06s; }
.reveal[data-delay="2"] { transition-delay: .12s; }
.reveal[data-delay="3"] { transition-delay: .18s; }
.reveal[data-delay="4"] { transition-delay: .24s; }
.reveal[data-delay="5"] { transition-delay: .30s; }

@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1; transform: none; transition: none; }
  .js .hw i { transform: none; animation: none; }
  .js .wb-row, .js .workbook-wrap .wb-row { opacity: 1 !important; transform: none !important; animation: none !important; }
  .hero__scroll span, .eyebrow__dot, .wex-tag__dot, .panel-fx .flow, .panel-fx .pulse, .aurora,
  .workbook__live span, .leak-spike { animation: none !important; }
  .leak-spike { stroke-dashoffset: 0; }
  .donut__val { transition: none; }
  .timeline::after, .tl__dot { transition: none; }
  .curtain, .intro .curtain { display: none; }
  .js .qw { opacity: 1; transition: none; }
  .steps::before { transform: scaleX(1); transition: none; }
  .js .steps.is-visible .step__num { animation: none; }
  .js [data-parallax] { transform: none; }
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 1120px) {
  .nav__links { gap: 22px; }
  .brand__mark { width: 30px; height: 30px; }
  .brand__text { font-size: 20px; }
}
@media (max-width: 1080px) {
  .optimizer__grid { grid-template-columns: 1fr; gap: 44px; }
  .proof__grid { grid-template-columns: 1fr; gap: 52px; }
  .donut-wrap { margin: 0 auto; }
  .about__grid { grid-template-columns: 1fr; gap: 40px; }
  .nav__links, .nav__cta { display: none; }
  .nav__cta-mobile { display: inline-flex; align-items: center; margin-left: auto; margin-right: 4px; }
  .nav__toggle { display: block; }
  .nav.is-open .nav__mobile { display: flex; }
  .svc-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
  .leaks { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
}
@media (max-width: 980px) {
  .stats__grid { grid-template-columns: repeat(2, 1fr); gap: 30px 34px; }
  .stat-intro { grid-column: 1 / -1; }
  .steps { grid-template-columns: 1fr 1fr; gap: 44px 18px; }
  .steps::before { display: none; }
  .rhythm__grid, .rails__grid { grid-template-columns: 1fr 1fr; }
  .timeline { grid-template-columns: 1fr 1fr; gap: 40px 24px; }
  .timeline::before, .timeline::after { display: none; }
  .tl { padding-top: 0; padding-left: 30px; }
  .tl__dot { top: 4px; box-shadow: 0 0 10px var(--glow-2); transform: scale(1); }
}
@media (max-width: 720px) {
  .hero .eyebrow { border: 0; padding: 0; background: none; backdrop-filter: none; -webkit-backdrop-filter: none; flex-wrap: wrap; row-gap: 4px; max-width: 34ch; margin-inline: auto; }
  .actions4 { grid-template-columns: 1fr; }
  .proof__cards { grid-template-columns: 1fr; }
  .footer__top { gap: 26px; }
  .footer__base { flex-direction: column; gap: 10px; }
  .footer__nav { gap: 4px 44px; }
  .footer__nav a { padding: 8px 0; }
  .workbook__cols { grid-template-columns: 1.5fr 1.15fr 64px; }
  .workbook__cols span:nth-child(2) { display: none; }
  .wb-row { grid-template-columns: 1.5fr 1.15fr 64px; }
  .wb-row__city { display: none; }
}
@media (max-width: 560px) { .rhythm__grid, .rails__grid { grid-template-columns: 1fr; } .timeline { grid-template-columns: 1fr; } }
@media (max-width: 480px) {
  body { font-size: 16px; }
  .stats__grid { grid-template-columns: 1fr; gap: 30px; }
  .steps { grid-template-columns: 1fr; }
  .hero__cta { flex-direction: column; align-items: stretch; }
  .hero__cta .btn { justify-content: center; }
  .nav__inner .brand__tagline { display: none; }
  .hero .eyebrow__logo { width: 30px; height: 30px; }
}

/* platform logos: lift onto dark */
.eyebrow__logo { width: 34px; height: 34px; border-radius: 9px; display: inline-block; box-shadow: 0 4px 12px -2px rgba(0,0,0,.5); background: #fff; padding: 2px; }
.eyebrow .eyebrow__logo:first-of-type { margin-left: 5px; }