/* =========================================================
   Sensate Robotics — Concept 1 "SWEEP"
   Bright mission-control radar aesthetic. Green + white.
   ========================================================= */

/* ---------- Tokens ---------- */
:root {
  /* greens */
  --forest-900: #08301F;
  --forest-800: #0B3D2E;
  --forest-700: #0E5A3F;
  --emerald-600: #059669;
  --emerald-500: #10B981;
  --emerald-400: #16C784;
  --mint-300: #6EE7B7;
  --mint-200: #A7F3D0;
  --mint-100: #D7F7E8;

  /* base / neutrals */
  --white: #FFFFFF;
  --off-white: #F4FAF7;
  --paper: #EEF6F1;
  --ink-900: #0A1F18;
  --ink-600: #3A4F47;
  --ink-400: #6B7F77;
  --line: #D5E6DE;
  --line-strong: #B7D6C8;

  /* functional */
  --glow-emerald: rgba(16,185,129,0.18);
  --grid-line: rgba(11,61,46,0.05);
  --grid-line-strong: rgba(11,61,46,0.08);
  --shadow-soft: 0 1px 2px rgba(10,31,24,0.04), 0 8px 24px rgba(10,31,24,0.06);
  --shadow-lift: 0 2px 6px rgba(10,31,24,0.06), 0 18px 48px rgba(10,31,24,0.10);

  /* type */
  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;

  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);

  --maxw: 1200px;
  --gutter: 24px;
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink-900);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }

h1, h2, h3, h4 { font-family: var(--font-display); margin: 0; }

p { margin: 0; }

a { color: var(--emerald-600); text-decoration: none; }

ol, ul { margin: 0; padding: 0; list-style: none; }

strong { font-weight: 600; color: var(--ink-900); }

::selection { background: var(--mint-200); color: var(--ink-900); }

/* ---------- A11y helpers ---------- */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; top: -60px; left: 16px; z-index: 2000;
  background: var(--emerald-500); color: #fff;
  padding: 10px 16px; border-radius: 8px; font-weight: 600;
  transition: top .2s var(--ease);
}
.skip-link:focus { top: 12px; }

:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--glow-emerald), 0 0 0 1px var(--emerald-500);
  border-radius: 6px;
}

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

.section { padding-block: 72px; position: relative; }
.section--alt { background: var(--off-white); }

.section__head { max-width: 720px; margin-bottom: 40px; }
.section__head--center { margin-inline: auto; text-align: center; }

/* ---------- Type roles ---------- */
.eyebrow {
  font-family: var(--font-display);
  font-size: 13px; font-weight: 600;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--emerald-600);
  display: inline-flex; align-items: center; gap: 8px;
  margin-bottom: 18px;
}
.eyebrow--mint { color: var(--mint-200); }

.reticle-plus {
  color: var(--emerald-500);
  font-weight: 700;
  font-family: var(--font-display);
  line-height: 1;
}
.eyebrow--mint .reticle-plus { color: var(--mint-300); }

.section__title {
  font-size: clamp(28px, 3.4vw, 44px);
  line-height: 1.08; font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--ink-900);
}

.section__lead {
  margin-top: 18px;
  font-size: clamp(17px, 1.4vw, 20px);
  line-height: 1.5; color: var(--ink-600);
  max-width: 60ch;
}

.accent { color: var(--emerald-500); }
.accent-mint { color: var(--mint-300); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-body);
  font-size: 16px; font-weight: 600; letter-spacing: 0.01em;
  padding: 14px 24px; min-height: 48px;
  border-radius: 10px; border: 1.5px solid transparent;
  cursor: pointer; position: relative;
  transition: transform .2s var(--ease), background .2s var(--ease),
              border-color .2s var(--ease), color .2s var(--ease), box-shadow .2s var(--ease);
  white-space: nowrap;
}

.btn__mark {
  display: inline-grid; place-items: center;
  width: 22px; height: 22px; border-radius: 999px;
  background: rgba(255,255,255,0.18);
  font-size: 14px; line-height: 1;
}

.btn--primary { background: var(--emerald-500); color: #fff; }
.btn--primary:hover { background: var(--emerald-600); transform: translateY(-1px); box-shadow: var(--shadow-soft); }
.btn--primary:active { transform: translateY(0); background: var(--emerald-600); }

.btn--ghost {
  background: transparent; border-color: var(--line-strong); color: var(--forest-700);
}
.btn--ghost:hover { border-color: var(--emerald-500); color: var(--emerald-600); background: var(--mint-100); }

.btn--primary-dark { background: var(--emerald-400); color: var(--forest-900); }
.btn--primary-dark .btn__mark { background: rgba(8,48,31,0.16); }
.btn--primary-dark:hover { background: var(--mint-300); transform: translateY(-1px); box-shadow: 0 12px 32px rgba(0,0,0,0.25); }

.btn--ghost-dark { background: transparent; border-color: var(--mint-300); color: var(--mint-200); }
.btn--ghost-dark:hover { background: rgba(167,243,208,0.10); }

/* button ping (added by JS) */
.btn .btn-ping {
  position: absolute; left: 50%; top: 50%;
  width: 8px; height: 8px; border-radius: 999px;
  border: 2px solid var(--mint-300);
  transform: translate(-50%, -50%) scale(1);
  pointer-events: none; opacity: .9;
  animation: btnPing .6s var(--ease) forwards;
}
@keyframes btnPing {
  to { transform: translate(-50%, -50%) scale(7); opacity: 0; }
}

/* =========================================================
   NAV
   ========================================================= */
.nav {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(255,255,255,0.80);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  transition: background .25s var(--ease), box-shadow .25s var(--ease);
}
.nav.is-scrolled {
  background: rgba(255,255,255,0.94);
  box-shadow: var(--shadow-soft);
}

.nav__inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.nav__logo { display: inline-flex; align-items: center; }
.nav__logo img { height: 28px; width: auto; }

.nav__links { display: flex; align-items: center; gap: 28px; }
.nav__links a {
  font-size: 15px; font-weight: 500; letter-spacing: 0.01em;
  color: var(--ink-600); position: relative; padding: 4px 0;
  transition: color .2s var(--ease);
}
.nav__links a::after {
  content: ""; position: absolute; left: 0; bottom: -2px;
  width: 100%; height: 1px; background: var(--emerald-500);
  transform: scaleX(0); transform-origin: left;
  transition: transform .2s var(--ease);
}
.nav__links a:hover { color: var(--ink-900); }
.nav__links a:hover::after { transform: scaleX(1); }
.nav__links a.is-active { color: var(--forest-700); }
.nav__links a.is-active::after { transform: scaleX(1); }

.nav__actions { display: flex; align-items: center; gap: 12px; }
.nav__cta { padding: 10px 18px; min-height: 44px; }

.nav__toggle {
  display: none;
  flex-direction: column; gap: 5px; justify-content: center;
  width: 44px; height: 44px; padding: 0;
  background: transparent; border: 0; cursor: pointer;
}
.nav__toggle span {
  display: block; width: 24px; height: 2px; border-radius: 2px;
  background: var(--emerald-600); margin-inline: auto;
  transition: transform .25s var(--ease), opacity .2s var(--ease);
}
.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu sheet */
.mobile-menu {
  position: absolute; top: 100%; left: 0; right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
  padding: 16px var(--gutter) 24px;
}
.mobile-menu[hidden] { display: none; }
.mobile-menu nav { display: flex; flex-direction: column; gap: 4px; }
.mobile-menu a {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-body); font-size: 18px; font-weight: 500;
  color: var(--ink-900); padding: 14px 4px;
  border-bottom: 1px solid var(--line);
}
.mobile-menu a .reticle-plus { color: var(--emerald-500); font-size: 14px; }
.mobile-menu__cta {
  margin-top: 16px; justify-content: center; border-bottom: none !important;
  color: #fff !important;
}

/* =========================================================
   HERO
   ========================================================= */
.hero { position: relative; overflow: hidden; padding-block: 56px 80px; }

.hero__grid-bg {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    repeating-linear-gradient(0deg, var(--grid-line) 0 1px, transparent 1px 40px),
    repeating-linear-gradient(90deg, var(--grid-line) 0 1px, transparent 1px 40px);
  -webkit-mask-image: radial-gradient(ellipse at center, #000 35%, transparent 82%);
  mask-image: radial-gradient(ellipse at center, #000 35%, transparent 82%);
  opacity: 0.9;
}

.hero__inner {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1fr; gap: 48px;
  align-items: center;
}

.hero__title {
  font-size: clamp(38px, 6vw, 72px);
  line-height: 1.04; font-weight: 700; letter-spacing: -0.02em;
  color: var(--ink-900); margin-top: 4px;
}
.hero__lead {
  margin-top: 22px;
  font-size: clamp(17px, 1.6vw, 20px); line-height: 1.5;
  color: var(--ink-600); max-width: 52ch;
}
.hero__cta {
  display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px;
}
.hero__trust {
  margin-top: 28px; font-size: 13px; color: var(--ink-400);
}
.hero__trust strong { color: var(--ink-600); font-weight: 600; }

/* --- Scope --- */
.hero__scope-wrap { display: flex; justify-content: center; }

.scope {
  position: relative;
  width: min(560px, 80vw);
  aspect-ratio: 1 / 1;
}
.scope__svg { width: 100%; height: 100%; }

/* rotating sweep */
.scope__sweep {
  position: absolute; inset: 0;
  border-radius: 50%;
  background: conic-gradient(from 0deg,
    rgba(22,199,132,0.55) 0deg,
    rgba(22,199,132,0.18) 18deg,
    rgba(22,199,132,0.04) 38deg,
    transparent 46deg,
    transparent 360deg);
  /* clip to the scope field circle (radius 258 of 560 = 92.1%) */
  -webkit-mask: radial-gradient(circle at center, #000 92%, transparent 92.3%);
  mask: radial-gradient(circle at center, #000 92%, transparent 92.3%);
  animation: sweepRotate 6s linear infinite;
  pointer-events: none;
}
/* crisp leading edge line */
.scope__sweep::before {
  content: ""; position: absolute;
  left: 50%; top: 50%; width: 46%; height: 2px;
  transform-origin: left center;
  background: linear-gradient(90deg, transparent, var(--emerald-400));
  box-shadow: 0 0 8px rgba(22,199,132,0.6);
}
@keyframes sweepRotate { to { transform: rotate(360deg); } }

/* ping dots — synchronized to sweep (45deg wedge → delay = bearing/360 * 6s) */
.ping__wave { transform-box: fill-box; transform-origin: center; opacity: 0; }
.ping .ping__wave { animation: pingWave 6s linear infinite; }

/* ping bearings: dot1 ≈ 65°, dot2 ≈ 145°, dot3 ≈ 295° (measured from N, clockwise) */
.ping--1 .ping__wave { animation-delay: 1.08s; }
.ping--2 .ping__wave { animation-delay: 2.42s; }
.ping--3 .ping__wave { animation-delay: 4.92s; }

@keyframes pingWave {
  0%   { transform: scale(1);   opacity: 0; }
  3%   { transform: scale(1);   opacity: 0.9; }
  16%  { transform: scale(4.6); opacity: 0; }
  100% { transform: scale(4.6); opacity: 0; }
}

/* outer ring breathing */
.ring--outer { animation: ringBreathe 4s ease-in-out infinite; }
@keyframes ringBreathe { 0%,100% { opacity: .4; } 50% { opacity: .62; } }

/* HUD */
.scope__hud {
  position: absolute; top: 8%; left: 6%;
  display: flex; flex-direction: column; gap: 4px;
  font-family: var(--font-display); font-size: 11px; font-weight: 500;
  letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-400);
  pointer-events: none;
}
.hud__live { color: var(--emerald-600); display: inline-flex; align-items: center; gap: 6px; }
.hud__live i {
  width: 6px; height: 6px; border-radius: 999px; background: var(--emerald-500);
  box-shadow: 0 0 0 0 rgba(16,185,129,0.5);
  animation: livePulse 2s ease-in-out infinite;
}
@keyframes livePulse {
  0%,100% { box-shadow: 0 0 0 0 rgba(16,185,129,0.45); }
  50%     { box-shadow: 0 0 0 5px rgba(16,185,129,0); }
}
.scope__hud-label {
  position: absolute; bottom: 9%; right: 7%;
  font-family: var(--font-display); font-size: 11px; font-weight: 500;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--emerald-600);
  pointer-events: none;
}

/* =========================================================
   PROBLEM (dark forest band)
   ========================================================= */
.problem {
  position: relative; overflow: hidden;
  background: var(--forest-800); color: #fff;
  padding-block: 88px;
}
.problem__grid {
  position: absolute; inset: 0; pointer-events: none; opacity: 0.5;
  background:
    repeating-radial-gradient(circle at 12% 18%,
      rgba(167,243,208,0.06) 0 1px, transparent 1px 80px);
}
.problem__inner { position: relative; text-align: center; max-width: 860px; margin-inline: auto; }
.problem__title {
  font-size: clamp(28px, 3.6vw, 44px); line-height: 1.12; font-weight: 600;
  letter-spacing: -0.01em; color: #fff;
}
.problem__sub {
  margin-top: 24px; font-size: clamp(16px, 1.4vw, 18px); line-height: 1.6;
  color: rgba(255,255,255,0.72); max-width: 64ch; margin-inline: auto;
}

/* =========================================================
   TECHNOLOGY
   ========================================================= */
.tech { position: relative; overflow: hidden; }
.tech__grid {
  position: absolute; top: 0; right: 0; width: 60%; height: 70%;
  pointer-events: none; opacity: 0.7;
  background:
    repeating-radial-gradient(circle at 100% 0%,
      var(--grid-line) 0 1px, transparent 1px 80px);
  -webkit-mask: radial-gradient(circle at 100% 0%, #000, transparent 75%);
  mask: radial-gradient(circle at 100% 0%, #000, transparent 75%);
}

.tech__grid-cards {
  display: grid; grid-template-columns: 1fr; gap: 24px;
}

/* generic card */
.card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--shadow-soft);
  padding: 28px;
  transition: transform .2s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.card__corner {
  position: absolute; font-family: var(--font-display); font-weight: 700;
  font-size: 12px; line-height: 1; color: var(--line-strong);
  transition: color .2s var(--ease);
}
.card__corner--tl { top: 10px; left: 12px; }
.card__corner--tr { top: 10px; right: 12px; }
.card__corner--bl { bottom: 10px; left: 12px; }
.card__corner--br { bottom: 10px; right: 12px; }

.tech-card { display: flex; flex-direction: column; }
.tech-card:hover,
.tech-card:focus-visible {
  border-color: var(--emerald-500);
  box-shadow: var(--shadow-lift);
  transform: translateY(-4px);
}
.tech-card:hover .card__corner,
.tech-card:focus-visible .card__corner { color: var(--emerald-500); }

.tech-card__top {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 12px; margin-bottom: 16px;
}
.card__index {
  font-family: var(--font-display); font-size: 12px; font-weight: 600;
  letter-spacing: 0.04em; color: var(--emerald-600);
}
.glyph { width: 44px; height: 44px; flex: none; }
.tech-card:hover .glyph { animation: glyphPing .6s var(--ease); }
@keyframes glyphPing { 0% { opacity: .5; transform: scale(.9); } 100% { opacity: 1; transform: scale(1); } }

.tech-card__title { font-size: 24px; font-weight: 600; letter-spacing: -0.01em; color: var(--ink-900); }
.tech-card__tag { margin-top: 6px; font-size: 14px; font-weight: 500; color: var(--forest-700); }
.tech-card__body { margin-top: 12px; font-size: 15px; line-height: 1.6; color: var(--ink-600); flex: 1; }
.micro-link {
  margin-top: 18px; padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 14px; font-weight: 500; color: var(--emerald-600);
}

/* =========================================================
   ECONOMICS
   ========================================================= */
.metrics {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px;
}
.metric {
  text-align: center; border-radius: 16px; padding: 32px 20px;
  display: flex; flex-direction: column; align-items: center;
}
.metric__gauge { width: 48px; height: 24px; margin-bottom: 14px; }
.metric__num {
  font-family: var(--font-display); font-size: clamp(40px, 5vw, 64px);
  font-weight: 700; line-height: 1; letter-spacing: -0.02em;
  color: var(--emerald-500); font-variant-numeric: tabular-nums;
}
.metric:nth-child(2) .metric__num,
.metric:nth-child(4) .metric__num { color: var(--forest-800); }
.metric__label { margin-top: 12px; font-size: 14px; font-weight: 500; color: var(--ink-600); }

.econ-strip {
  margin-top: 40px; padding: 18px 24px;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  display: flex; flex-wrap: wrap; align-items: center; justify-content: center;
  gap: 14px 20px; font-size: 15px; color: var(--ink-600); text-align: center;
}
.econ-strip strong { color: var(--forest-800); font-weight: 700; }
.reticle-dot {
  display: inline-block; width: 6px; height: 6px; border-radius: 999px;
  background: var(--emerald-500); flex: none;
}

/* =========================================================
   HOW IT WORKS
   ========================================================= */
.how { position: relative; overflow: hidden; }
.how__grid {
  position: absolute; inset: 0; pointer-events: none; opacity: 0.8;
  background: repeating-linear-gradient(0deg, var(--grid-line) 0 1px, transparent 1px 40px);
  -webkit-mask: radial-gradient(ellipse 60% 50% at center, #000 30%, transparent 80%);
  mask: radial-gradient(ellipse 60% 50% at center, #000 30%, transparent 80%);
}

.flow {
  position: relative;
  display: grid; grid-template-columns: 1fr; gap: 32px;
}
.flow__line {
  position: absolute; left: 28px; top: 28px; bottom: 28px; width: 0;
  border-left: 1px dashed var(--emerald-500); opacity: 0.55;
}
.flow__signal {
  position: absolute; left: -4px; top: 0; width: 8px; height: 8px;
  border-radius: 999px; background: var(--emerald-500);
  box-shadow: 0 0 8px rgba(16,185,129,0.7);
  animation: signalDownV 4s var(--ease) infinite;
}
@keyframes signalDownV {
  0% { top: 0%; opacity: 0; }
  8% { opacity: 1; }
  92% { opacity: 1; }
  100% { top: 100%; opacity: 0; }
}

.flow__step { position: relative; padding-left: 80px; }
.flow__node {
  position: absolute; left: 0; top: 0;
  width: 56px; height: 56px; border-radius: 999px;
  background: var(--white); border: 1.5px solid var(--emerald-500);
  display: grid; place-items: center;
  box-shadow: 0 0 0 6px rgba(16,185,129,0.06);
}
.flow__node span {
  font-family: var(--font-display); font-size: 18px; font-weight: 600; color: var(--emerald-600);
}
.flow__title { font-size: 24px; font-weight: 600; letter-spacing: -0.01em; color: var(--ink-900); margin-bottom: 6px; }
.flow__body { font-size: 15px; line-height: 1.6; color: var(--ink-600); max-width: 60ch; }

/* =========================================================
   MARKETS
   ========================================================= */
.market-tier { margin-top: 28px; }
.market-tier:first-of-type { margin-top: 0; }
.market-tier__label {
  font-family: var(--font-display); font-size: 13px; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--forest-700);
  margin-bottom: 14px;
}
.chips { display: flex; flex-wrap: wrap; gap: 12px; }
.chip {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--white); border: 1px solid var(--line); border-radius: 999px;
  padding: 9px 18px; font-size: 14px; font-weight: 500; color: var(--ink-600);
  position: relative; transition: background .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
}
.chip:hover { background: var(--mint-100); border-color: var(--emerald-500); }
.chip__dot {
  width: 6px; height: 6px; border-radius: 999px; background: var(--emerald-500); flex: none;
}
.chip--primary {
  background: var(--mint-200); border-color: var(--emerald-500); color: var(--emerald-600); font-weight: 600;
}
.chip--ghost {
  border-style: dashed; color: var(--ink-400); background: transparent;
}
.chip__cross { color: var(--line-strong); font-family: var(--font-display); font-weight: 700; }
.chip-ping {
  position: absolute; left: 16px; top: 50%; width: 6px; height: 6px;
  border-radius: 999px; border: 2px solid var(--mint-300);
  transform: translate(-50%,-50%) scale(1); pointer-events: none;
  animation: btnPing .6s var(--ease) forwards;
}

/* =========================================================
   TEAM
   ========================================================= */
.team__grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px;
}
.founder {
  background: var(--off-white); border-radius: 18px; padding: 24px; text-align: center;
}
.founder:hover { box-shadow: var(--shadow-lift); transform: translateY(-3px); }
.founder__avatar {
  position: relative; width: 96px; height: 96px; margin: 0 auto 18px;
}
.founder__avatar svg { width: 100%; height: 100%; }
.founder:hover .founder__avatar::after {
  content: ""; position: absolute; inset: 0; border-radius: 999px;
  border: 1.5px solid var(--emerald-500);
  animation: btnPing .6s var(--ease) forwards;
}
.founder__initials {
  position: absolute; inset: 0; display: grid; place-items: center;
  font-family: var(--font-display); font-size: 26px; font-weight: 600; color: var(--forest-800);
}
.founder__name { font-size: 21px; font-weight: 600; color: var(--ink-900); }
.founder__role { margin-top: 8px; font-size: 14px; line-height: 1.5; color: var(--ink-600); }

/* =========================================================
   INVESTORS
   ========================================================= */
.investors { position: relative; overflow: hidden; padding-block: 96px; }
.investors__grid {
  position: absolute; inset: 0; pointer-events: none; opacity: 0.8;
  background:
    repeating-radial-gradient(circle at 50% 45%,
      var(--grid-line) 0 1px, transparent 1px 70px);
  -webkit-mask: radial-gradient(circle at 50% 45%, #000 20%, transparent 65%);
  mask: radial-gradient(circle at 50% 45%, #000 20%, transparent 65%);
}

.techstars { position: relative; display: flex; justify-content: center; margin-bottom: 48px; }
.techstars__ring {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%,-50%);
  width: 460px; height: 460px; max-width: 90vw; border-radius: 999px;
  border: 1px solid var(--mint-200); opacity: 0.6; pointer-events: none;
}
.techstars__ring::after {
  content: ""; position: absolute; inset: 60px; border-radius: 999px;
  border: 1px solid var(--mint-100);
}
.techstars__panel {
  position: relative; background: var(--white);
  border: 1px solid var(--line-strong); border-radius: 24px;
  box-shadow: var(--shadow-soft); padding: 40px 48px;
  display: flex; flex-direction: column; align-items: center; gap: 22px;
  text-align: center; max-width: 100%;
}
.techstars__pill {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--mint-200); color: var(--forest-800);
  font-family: var(--font-display); font-size: 13px; font-weight: 600;
  letter-spacing: 0.06em; padding: 7px 14px; border-radius: 999px;
}
.techstars__logo { height: 40px; width: auto; }

.backers {
  display: flex; flex-wrap: wrap; justify-content: center; align-items: center;
  gap: 16px 28px;
}
.backer {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  padding: 14px 22px; border: 1px solid var(--line); border-radius: 14px;
  background: var(--white);
}
.backer__mark {
  font-family: var(--font-display); font-size: 22px; font-weight: 700;
  letter-spacing: 0.04em; color: var(--forest-800);
}
.backer__sub { font-size: 13px; color: var(--ink-600); }
.backer--pill {
  flex-direction: row; border-radius: 999px; background: var(--off-white);
}

/* =========================================================
   CTA BAND
   ========================================================= */
.cta {
  position: relative; overflow: hidden;
  background: var(--forest-900); color: #fff;
  padding-block: 96px; text-align: center;
}
.cta__grid {
  position: absolute; inset: 0; pointer-events: none; opacity: 0.6;
  background:
    repeating-radial-gradient(circle at 50% 50%,
      rgba(167,243,208,0.05) 0 1px, transparent 1px 70px);
}
.cta__sweep {
  position: absolute; left: 50%; top: 50%;
  width: 140vw; aspect-ratio: 1/1; transform: translate(-50%,-50%);
  pointer-events: none; border-radius: 50%;
  background: conic-gradient(from 0deg,
    rgba(167,243,208,0.10) 0deg, rgba(167,243,208,0.02) 30deg, transparent 60deg, transparent 360deg);
  animation: sweepRotate 12s linear infinite;
}
.cta__inner { position: relative; z-index: 1; max-width: 720px; margin-inline: auto; }
.cta__title { font-size: clamp(28px, 3.6vw, 44px); line-height: 1.1; font-weight: 600; color: #fff; }
.cta__lead { margin-top: 18px; font-size: clamp(16px, 1.4vw, 18px); color: rgba(255,255,255,0.72); }
.cta__btns { margin-top: 32px; display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }

/* =========================================================
   FOOTER
   ========================================================= */
.footer { background: var(--forest-800); color: rgba(255,255,255,0.7); padding-block: 56px 28px; }
.footer__inner {
  display: grid; grid-template-columns: 1fr; gap: 40px;
}
.footer__brand img { height: 24px; width: auto; }
.footer__tagline { margin-top: 14px; color: var(--mint-200); font-size: 15px; }

.footer__cols {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
}
.footer__col h3 {
  font-family: var(--font-display); font-size: 13px; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase; color: #fff; margin-bottom: 14px;
}
.footer__col a {
  display: block; color: rgba(255,255,255,0.7); font-size: 15px;
  padding: 5px 0; width: fit-content; position: relative;
  transition: color .2s var(--ease);
}
.footer__col a::after {
  content: ""; position: absolute; left: 0; bottom: 2px; width: 100%; height: 1px;
  background: var(--mint-200); transform: scaleX(0); transform-origin: left;
  transition: transform .2s var(--ease);
}
.footer__col a:hover { color: var(--mint-200); }
.footer__col a:hover::after { transform: scaleX(1); }

.footer__bottom {
  margin-top: 40px; padding-top: 22px;
  border-top: 1px solid rgba(255,255,255,0.12);
  display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; align-items: center;
  font-size: 13px; color: rgba(255,255,255,0.6);
}
.footer__meta { display: inline-flex; align-items: center; gap: 8px; }
.footer__meta .reticle-dot { background: var(--mint-300); }

/* =========================================================
   SCROLL REVEALS
   ========================================================= */
/* Reveals are a progressive enhancement: hidden state only applies once JS
   "arms" the page (html.reveal-armed). Without JS — or before it runs — all
   content is fully visible, so nothing can ever stay invisible. */
.reveal-armed .reveal {
  opacity: 0; transform: translateY(16px);
  transition: opacity .6s var(--ease), transform .6s var(--ease);
}
.reveal-armed .reveal.is-in { opacity: 1; transform: none; }

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (min-width: 768px) {
  :root { --gutter: 32px; }
  .tech__grid-cards { grid-template-columns: repeat(2, 1fr); }
  .team__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  :root { --gutter: 48px; }
  .section { padding-block: 120px; }
  .investors { padding-block: 120px; }
  .cta { padding-block: 120px; }

  .nav__inner { height: 72px; }

  .hero__inner {
    grid-template-columns: 46% 54%;
    gap: 32px; min-height: 78vh;
  }
  .hero__scope-wrap { justify-content: center; }

  .tech__grid-cards { grid-template-columns: repeat(4, 1fr); }
  .metrics { grid-template-columns: repeat(4, 1fr); }
  .team__grid { grid-template-columns: repeat(4, 1fr); }

  /* horizontal signal flow */
  .flow { grid-template-columns: repeat(4, 1fr); gap: 24px; }
  .flow__step { padding-left: 0; padding-top: 76px; }
  .flow__node { left: 0; top: 0; }
  .flow__line {
    left: 28px; right: 28px; top: 28px; bottom: auto; width: auto; height: 0;
    border-left: none; border-top: 1px dashed var(--emerald-500);
  }
  .flow__signal { top: -4px; left: 0; animation: signalRight 4s var(--ease) infinite; }
  @keyframes signalRight {
    0% { left: 0%; opacity: 0; }
    8% { opacity: 1; } 92% { opacity: 1; }
    100% { left: 100%; opacity: 0; }
  }

  .footer__inner { grid-template-columns: 1fr auto; gap: 64px; }
  .footer__cols { grid-template-columns: repeat(3, minmax(120px, 1fr)); }
}

@media (max-width: 1023px) {
  .nav__links { display: none; }
  .nav__cta { display: none; }
  .nav__toggle { display: flex; }
}

@media (max-width: 520px) {
  .metrics { grid-template-columns: repeat(2, 1fr); }
  .scope { width: min(420px, 86vw); }
  .hero__cta .btn,
  .cta__btns .btn { flex: 1 1 auto; justify-content: center; }
}

/* =========================================================
   REDUCED MOTION — static "captured frame"
   ========================================================= */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .reveal { opacity: 1 !important; transform: none !important; }

  /* freeze sweep at ~315° (upper-left) static fan */
  .scope__sweep {
    animation: none !important;
    transform: rotate(315deg);
  }
  /* show pings in mid-pulse */
  .ping .ping__wave { animation: none !important; opacity: .5; transform: scale(3); transform-box: fill-box; transform-origin: center; }
  .ring--outer { animation: none !important; opacity: .55; }
  .cta__sweep { animation: none !important; }
  .flow__signal { animation: none !important; left: 50%; top: 50%; opacity: 1; }
  .hud__live i { animation: none !important; }
}