/* ============================================================
   SIGNALMATRIX AI — Homepage
   ============================================================ */

:root {
  --sys-min:      370px;
  --sys-pad:      34px 28px 24px;
  --sys-gap:      16px;

  /* Section rhythm — Regular */
  --sec-pad-y:    130px;
  --sec-pad-tight: 72px;

  /* Navy spine */
  --navy-1000:  #060A18;
  --navy-900:   #0A0F1E;
  --navy-800:   #0E1530;
  --navy-700:   #131C3E;
  --navy-600:   #1B254F;
  --navy-500:   #2B3868;
  --line:       rgba(255,255,255,0.08);
  --line-2:     rgba(255,255,255,0.16);

  /* Text — all ADA AA against navy spine */
  --fg:         #EEF1FA;
  --fg-mute:    #B4BCD4;
  --fg-dim:     #8B95B5;
  --fg-faint:   #5F6989;   /* decorative only */

  /* Brand green — dominant accent */
  --green:        #00FF88;
  --green-2:      #4DFFA8;
  --green-soft:   rgba(0, 255, 136, 0.10);
  --green-line:   rgba(0, 255, 136, 0.28);
  --green-glow:   rgba(0, 255, 136, 0.45);

  /* Vertical / pillar accents */
  --teal:         #2DD4BF;
  --teal-soft:    rgba(45, 212, 191, 0.10);
  --teal-line:    rgba(45, 212, 191, 0.32);

  --purple:       #A78BFA;
  --purple-soft:  rgba(167, 139, 250, 0.10);
  --purple-line:  rgba(167, 139, 250, 0.32);

  --amber:        #FBBF24;
  --amber-soft:   rgba(251, 191, 36, 0.10);
  --amber-line:   rgba(251, 191, 36, 0.32);

  /* Type */
  --font-sans: 'Inter Tight', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  background: var(--navy-1000);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  overflow-wrap: break-word;
}
::selection { background: var(--green); color: var(--navy-1000); }

.shell { max-width: 1440px; margin: 0 auto; position: relative; }
section { position: relative; }

/* ============================================================
   SHARED
   ============================================================ */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--green);
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.eyebrow .dot {
  width: 7px; height: 7px; border-radius: 999px;
  background: var(--green);
  box-shadow: 0 0 12px var(--green-glow);
}

.sec-title {
  margin: 18px 0 0;
  font-family: var(--font-sans);
  font-size: 52px;
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.025em;
  color: var(--fg);
  max-width: 760px;
}
.sec-title .accent { color: var(--green); }

.sec-sub {
  margin: 18px 0 0;
  font-size: 18px;
  line-height: 1.55;
  color: var(--fg-mute);
  max-width: 640px;
}

/* Buttons */
.btn {
  --bg: transparent;
  --fg-btn: var(--fg);
  --br: var(--line-2);
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 22px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: -0.005em;
  color: var(--fg-btn);
  background: var(--bg);
  border: 1px solid var(--br);
  border-radius: 8px;
  cursor: pointer;
  text-decoration: none;
  transition: transform 200ms ease, background 200ms ease, border-color 200ms ease;
}
.btn:hover { transform: translateY(-1px); }
.btn .glyph { font-size: 15px; line-height: 1; transition: transform 200ms ease; }
.btn:hover .glyph { transform: translateX(3px); }
.btn.primary {
  --bg: var(--green);
  --fg-btn: var(--navy-1000);
  --br: var(--green);
  font-weight: 600;
  box-shadow: 0 1px 0 rgba(255,255,255,0.22) inset, 0 12px 36px -16px var(--green-glow);
}
.btn.primary:hover { --bg: var(--green-2); --br: var(--green-2); }
.btn.ghost { --bg: rgba(255,255,255,0.04); }
.btn.ghost:hover { --bg: rgba(255,255,255,0.09); --br: rgba(255,255,255,0.26); }

/* Grid background ornament */
.grid-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black 30%, transparent 80%);
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  background: rgba(10, 15, 30, 0.78);
  border-bottom: 1px solid var(--line);
  padding: 18px 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

/* Image logo — nav + footer */
.brand { display: flex; align-items: center; text-decoration: none; flex-shrink: 0; }
.brand img { height: 28px; width: auto; display: block; }

/* Hamburger toggle — hidden on desktop, shown at the mobile breakpoint below */
.nav-toggle {
  display: none;
  position: relative;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--line-2);
  border-radius: 8px;
  color: var(--fg);
  cursor: pointer;
  flex-shrink: 0;
}
.nav-toggle__icon { width: 20px; height: 20px; }
.nav-toggle__icon--close { display: none; }
.nav-toggle[aria-expanded="true"] .nav-toggle__icon--open { display: none; }
.nav-toggle[aria-expanded="true"] .nav-toggle__icon--close { display: block; }

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
  flex: 1;
  justify-content: flex-end;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  justify-content: flex-end;
  padding-right: 8px;
}
.nav-item { position: relative; }
.nav-link {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  color: var(--fg-mute);
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 8px 0;
  background: none;
  border: 0;
  transition: color 200ms ease;
}
.nav-link:hover { color: var(--fg); }
.nav-link svg { width: 14px; height: 14px; }

.nav-dropdown a {
  display: flex;
  align-items: center;
  padding: 11px 12px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--fg);
  text-decoration: none;
  transition: background 180ms ease;
}
.nav-dropdown a:hover { background: var(--navy-700); }

/* Nav CTA — matches agents page btn--primary */
.btn--primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font-sans);
  letter-spacing: -0.005em;
  cursor: pointer;
  white-space: nowrap;
  border: 0;
  text-decoration: none;
  background: var(--green);
  color: var(--navy-1000);
  transition: filter 200ms ease, transform 200ms ease;
}
.btn--primary:hover { filter: brightness(1.10); transform: translateY(-2px); }
.btn--primary svg { width: 16px; height: 16px; }

/* ============================================================
   HERO  (no eyebrow per spec)
   ============================================================ */
.hero {
  position: relative;
  padding: 56px 80px 72px;
  overflow: hidden;
  isolation: isolate;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 70% 60% at 80% 0%, rgba(0, 255, 136, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 10% 100%, rgba(0, 255, 136, 0.07) 0%, transparent 60%);
}
.hero .grid-bg { z-index: -1; }

.hero h1 {
  margin: 0;
  font-size: clamp(38px, 4.5vw, 58px);
  font-weight: 500;
  line-height: 1.06;
  letter-spacing: -0.03em;
  max-width: 1100px;
}
.hero h1 .accent { color: var(--green); }

.hero-sub {
  margin: 32px 0 44px;
  font-size: 21px;
  line-height: 1.5;
  color: var(--fg-mute);
  max-width: 680px;
  font-weight: 400;
}

.hero-ctas { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }

/* Constellation/particle field — hero only */
.signal-orn {
  position: absolute;
  top: 80px;
  right: -100px;
  width: 480px;
  height: 480px;
  z-index: -1;
  opacity: 0.7;
  pointer-events: none;
}
.particles {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.55;
  display: block;
}

/* ============================================================
   TRUST BAR
   ============================================================ */
.trust {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(14, 21, 48, 0) 0%, rgba(14, 21, 48, 0.4) 100%);
  overflow: hidden;
}
.trust-marquee {
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.trust-row {
  display: flex;
  align-items: center;
  width: max-content;
  padding: 26px 0;
  animation: trust-scroll 30s linear infinite;
  will-change: transform;
}
.trust-marquee:hover .trust-row { animation-play-state: paused; }
@keyframes trust-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(var(--marquee-distance, -50%)); }
}
@media (prefers-reduced-motion: reduce) {
  .trust-row { animation: none; }
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 22px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--fg-mute);
  border-right: 1px solid var(--line);
  white-space: nowrap;
  flex-shrink: 0;
}
.trust-item .ico {
  width: 28px; height: 28px;
  border-radius: 7px;
  display: grid; place-items: center;
  background: var(--green-soft);
  color: var(--green);
  flex-shrink: 0;
}

/* ============================================================
   SECTION SHELL
   ============================================================ */
.sec { position: relative; padding: var(--sec-pad-y) 80px; }
/* Tighten run of stacked sections: Industries → Approach → Opportunity → FAQ */
#verticals { padding-bottom: var(--sec-pad-tight); }
.systems-sec { padding-top: var(--sec-pad-tight); padding-bottom: var(--sec-pad-tight); }
.sec[aria-label="The opportunity"] { padding-top: var(--sec-pad-tight); padding-bottom: var(--sec-pad-tight); }
.faq-sec { padding-top: var(--sec-pad-tight); }
.sec-head {
  margin-bottom: 56px;
  max-width: 900px;
}

/* ============================================================
   VERTICALS  (Section 4)
   Each card carries its assigned vertical accent.
   ============================================================ */
.verticals {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.v-card {
  --c: var(--teal);
  --c-soft: var(--teal-soft);
  --c-line: var(--teal-line);
  position: relative;
  padding: 36px 38px;
  background: linear-gradient(180deg, rgba(19, 28, 62, 0.55) 0%, rgba(14, 21, 48, 0.35) 100%);
  border: 1px solid var(--line);
  border-left: 3px solid var(--c);
  border-radius: 14px;
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 28px;
  align-items: start;
  text-decoration: none;
  color: inherit;
  transition: transform 240ms ease, border-color 240ms ease;
  overflow: hidden;
}
.v-card[data-c="purple"] { --c: var(--purple); --c-soft: var(--purple-soft); --c-line: var(--purple-line); }
.v-card[data-c="green"]  { --c: var(--green);  --c-soft: var(--green-soft);  --c-line: var(--green-line); }
.v-card[data-c="amber"]  { --c: var(--amber);  --c-soft: var(--amber-soft);  --c-line: var(--amber-line); }
.v-card::after {
  content: "";
  position: absolute;
  top: 0; right: 0;
  width: 260px; height: 260px;
  background: radial-gradient(circle at 100% 0%, color-mix(in oklab, var(--c) 20%, transparent) 0%, transparent 60%);
  pointer-events: none;
  opacity: 0.6;
}
.v-card:hover {
  transform: translateY(-3px);
  border-top-color: var(--c-line);
  border-right-color: var(--c-line);
  border-bottom-color: var(--c-line);
}
.v-card:hover .v-cta .glyph { transform: translateX(4px); }

.v-icon {
  width: 56px; height: 56px;
  border-radius: 13px;
  background: var(--c-soft);
  color: var(--c);
  display: grid; place-items: center;
  border: 1px solid var(--c-line);
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}
.v-icon svg { width: 26px; height: 26px; }

.v-body { display: flex; flex-direction: column; gap: 16px; position: relative; z-index: 1; }
.v-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c);
}
.v-card h3 {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 22px;
  line-height: 1.25;
  letter-spacing: -0.018em;
  color: var(--fg);
}
.v-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--fg-mute);
}
.v-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c);
}
.v-cta .glyph { transition: transform 220ms ease; }

/* ============================================================
   THREE SYSTEMS  (Section 5)
   ============================================================ */
.systems-sec {
  background: linear-gradient(180deg, var(--navy-1000) 0%, var(--navy-900) 50%, var(--navy-1000) 100%);
}
.systems {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.sys {
  --c: var(--green);
  --c-soft: var(--green-soft);
  --c-line: var(--green-line);
  position: relative;
  background: var(--navy-800);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: var(--sys-pad);
  display: flex;
  flex-direction: column;
  gap: var(--sys-gap);
  overflow: hidden;
  min-height: var(--sys-min);
  box-shadow: 0 0 0 1px var(--c-line) inset, 0 0 60px -30px color-mix(in oklab, var(--c) 50%, transparent);
}
.sys[data-c="teal"]   { --c: var(--teal);   --c-soft: var(--teal-soft);   --c-line: var(--teal-line); }
.sys[data-c="purple"] { --c: var(--purple); --c-soft: var(--purple-soft); --c-line: var(--purple-line); }

.sys::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(ellipse 80% 50% at 50% 0%, color-mix(in oklab, var(--c) 20%, transparent) 0%, transparent 60%);
}

.sys-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  position: relative;
  z-index: 1;
}
.sys-num {
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--fg-dim);
}
.sys-num .roman {
  color: var(--c);
  margin-right: 6px;
  font-weight: 600;
}
.sys-icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  background: var(--c-soft);
  border: 1px solid var(--c-line);
  color: var(--c);
  display: grid; place-items: center;
  box-shadow: 0 0 24px -8px color-mix(in oklab, var(--c) 50%, transparent);
}
.sys-icon svg { width: 26px; height: 26px; }

.sys h3 {
  margin: 0;
  position: relative;
  z-index: 1;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 22px;
  line-height: 1.22;
  letter-spacing: -0.02em;
  color: var(--fg);
}
.sys h3 .accent { color: var(--c); }

.sys p {
  margin: 0;
  position: relative;
  z-index: 1;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--fg-mute);
}
.sys-foot {
  margin-top: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  text-decoration: none;
  color: var(--c);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  position: relative;
  z-index: 1;
  transition: gap 200ms ease;
}
.sys-foot:hover { gap: 20px; }
.sys-callout {
  margin: 40px auto 0;
  max-width: 820px;
  text-align: center;
  padding: 24px 36px;
  border: 1px solid var(--line-2);
  background: rgba(255,255,255,0.03);
  border-radius: 14px;
  font-size: 17px;
  color: var(--fg);
  line-height: 1.5;
}
.sys-callout .accent { color: var(--green); font-weight: 500; }

/* ============================================================
   STATS  (Section 6)
   ============================================================ */
.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.stat {
  --c: var(--green);
  position: relative;
  padding: 36px 32px;
  background: linear-gradient(180deg, var(--navy-800) 0%, var(--navy-900) 100%);
  border: 1px solid var(--line);
  border-left: 3px solid var(--c);
  border-radius: 14px;
  overflow: hidden;
  min-height: 320px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.stat[data-c="teal"]   { --c: var(--teal); }
.stat[data-c="purple"] { --c: var(--purple); }
.stat-num {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 88px;
  line-height: 0.95;
  letter-spacing: -0.045em;
  color: var(--c);
}
.stat h3 {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 19px;
  line-height: 1.3;
  letter-spacing: -0.015em;
  color: var(--fg);
}
.stat p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--fg-mute);
}
.stat-src {
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--fg-dim);
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

/* ============================================================
   FAQ  (Section 7)
   ============================================================ */
.faq-sec { padding: 130px 80px; }
.faq-wrap { max-width: 880px; margin: 0 auto; }
.faq-head { margin-bottom: 48px; text-align: center; }
.faq-head .sec-title { margin-inline: auto; }

.faq {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--line);
}
.faq details {
  border-bottom: 1px solid var(--line);
  padding: 24px 0;
}
.faq summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  color: var(--fg);
  transition: color 180ms ease;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary:hover { color: var(--green); }
.faq summary h3 {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 19px;
  line-height: 1.45;
  letter-spacing: -0.015em;
  color: inherit;
  flex: 1;
}
.faq .toggle {
  flex-shrink: 0;
  width: 32px; height: 32px;
  border-radius: 8px;
  border: 1px solid var(--line-2);
  background: rgba(255,255,255,0.03);
  color: var(--green);
  display: grid; place-items: center;
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 400;
  line-height: 1;
  transition: background 180ms ease, transform 240ms ease;
}
.faq details[open] .toggle { background: var(--green-soft); transform: rotate(45deg); }
.faq-body {
  margin-top: 18px;
  color: var(--fg-mute);
  font-size: 15.5px;
  line-height: 1.7;
  max-width: 760px;
}
.faq-body p { margin: 0 0 12px; }
.faq-body p:last-child { margin-bottom: 0; }
.faq-body strong { color: var(--fg); font-weight: 600; }
.faq-body em { color: var(--green); font-style: normal; font-weight: 500; }
.faq-body ol, .faq-body ul {
  margin: 12px 0;
  padding-left: 20px;
}
.faq-body li {
  margin: 8px 0;
}
.faq-body li::marker { color: var(--green); }

/* ============================================================
   AUDIT BANNER  (Section 8)
   ============================================================ */
.audit-sec { padding: 30px 80px 130px; }
.audit-card {
  position: relative;
  padding: 64px 64px;
  border-radius: 22px;
  background:
    radial-gradient(ellipse 60% 80% at 100% 0%, rgba(45, 212, 191, 0.18) 0%, transparent 60%),
    radial-gradient(ellipse 60% 80% at 0% 100%, rgba(0, 255, 136, 0.16) 0%, transparent 60%),
    linear-gradient(180deg, var(--navy-800), var(--navy-900));
  border: 1px solid transparent;
  overflow: hidden;
  isolation: isolate;
}
.audit-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 22px;
  padding: 1px;
  background: linear-gradient(135deg, var(--green) 0%, var(--teal) 100%);
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  opacity: 0.6;
  pointer-events: none;
}
.audit-grid {
  display: grid;
  grid-template-columns: 1.4fr auto;
  gap: 56px;
  align-items: center;
}
.audit-card h2 {
  margin: 18px 0 0;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 44px;
  line-height: 1.08;
  letter-spacing: -0.025em;
  color: var(--fg);
  max-width: 640px;
}
.audit-card h2 .accent { color: var(--green); }
.audit-card .audit-sub {
  margin: 18px 0 0;
  font-size: 17px;
  line-height: 1.55;
  color: var(--fg-mute);
  max-width: 580px;
}
.audit-actions {
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: flex-end;
}
.audit-reassure {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--fg-dim);
  text-align: right;
}

/* ============================================================
   FOUNDERS  (Section 9)
   ============================================================ */
.founders-sec { padding: 130px 80px; }
.founders-head { margin-bottom: 56px; max-width: 1100px; }
.founders-head .sec-title { max-width: 1000px; }
.founders-lead {
  margin: 18px 0 0;
  font-size: 18px;
  line-height: 1.55;
  color: var(--fg-mute);
  max-width: 760px;
}

.founders-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.founder {
  position: relative;
  padding: 36px;
  background: linear-gradient(180deg, var(--navy-800) 0%, var(--navy-900) 100%);
  border: 1px solid var(--line);
  border-radius: 18px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.founder-head {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 24px;
  align-items: center;
}
.portrait {
  width: 120px; height: 120px;
  border-radius: 999px;
  background:
    repeating-linear-gradient(135deg,
      rgba(255,255,255,0.05) 0 6px,
      rgba(255,255,255,0.02) 6px 12px),
    var(--navy-700);
  border: 1px solid var(--line-2);
  display: grid;
  place-items: center;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-dim);
  padding: 0 6px;
  flex-shrink: 0;
}
.portrait span {
  background: rgba(6,10,24,0.7);
  padding: 4px 8px;
  border-radius: 999px;
}
.founder h3 {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 26px;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--fg);
}
.founder .role {
  margin: 6px 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--green);
}
.founder .li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-mute);
  text-decoration: none;
  transition: color 180ms ease;
}
.founder .li:hover { color: var(--green); }
.founder .li-ico {
  width: 22px; height: 22px;
  border-radius: 5px;
  border: 1px solid var(--line-2);
  display: grid; place-items: center;
  color: var(--fg-mute);
}
.founder .li:hover .li-ico { color: var(--green); border-color: var(--green-line); }
.founder-bio {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--fg-mute);
}

.founders-callout {
  margin-top: 24px;
  padding: 32px 36px;
  background:
    radial-gradient(ellipse 50% 100% at 0% 50%, rgba(0, 255, 136, 0.10) 0%, transparent 70%),
    var(--navy-800);
  border: 1px solid var(--green-line);
  border-radius: 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}
.founders-callout p {
  margin: 0;
  font-size: 18px;
  line-height: 1.5;
  color: var(--fg);
  flex: 1;
  min-width: 320px;
}
.founders-callout p b { color: var(--green); font-weight: 600; }
.founders-callout .btn { flex-shrink: 0; }

/* ============================================================
   FOOTER
   ============================================================ */
.foot {
  position: relative;
  padding: 96px 0 32px;
  border-top: 1px solid var(--line);
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(0, 255, 136, 0.05) 0%, transparent 60%),
    var(--navy-1000);
}
.foot-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr 1.3fr;
  gap: 48px;
  padding: 0 80px 56px;
  border-bottom: 1px solid var(--line);
}
.foot-brand img { height: 32px; width: auto; display: block; }
.foot-brand p {
  margin: 22px 0 0;
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--fg-mute);
  max-width: 360px;
}
.foot-brand .contact {
  margin-top: 22px;
  display: grid;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--fg-mute);
}
.foot-brand .contact a { color: var(--fg-mute); text-decoration: none; transition: color 180ms ease; }
.foot-brand .contact a:hover { color: var(--green); }
.foot-cta .socials {
  display: flex;
  gap: 10px;
  margin-top: 22px;
}
.foot-cta .socials a {
  width: 36px; height: 36px;
  border-radius: 9px;
  border: 1px solid var(--line-2);
  display: grid; place-items: center;
  color: var(--fg-mute);
  text-decoration: none;
  transition: color 180ms ease, background 180ms ease, border-color 180ms ease;
}
.foot-cta .socials a:hover {
  color: var(--navy-1000);
  background: var(--green);
  border-color: var(--green);
}
.foot-cta .socials svg { width: 16px; height: 16px; }

.foot-col h5 {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--green);
}
.foot-col ul {
  list-style: none;
  margin: 0; padding: 0;
  display: grid;
  gap: 10px;
}
.foot-col a {
  font-size: 14px;
  color: var(--fg-mute);
  text-decoration: none;
  transition: color 180ms ease;
}
.foot-col a:hover { color: var(--fg); }

.foot-cta p {
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.55;
  color: var(--fg-mute);
}
.foot-cta .btn {
  width: 100%;
  justify-content: center;
  padding: 14px 14px;
  font-size: 13px;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.foot-bottom {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 32px;
  padding: 28px 80px 0;
}
.foot-badges {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}
.foot-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-mute);
}
.foot-badge .ico { color: var(--green); display: inline-grid; place-items: center; }
.foot-bottom .legal {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--fg-dim);
  text-align: right;
}
.foot-bottom .legal a { color: var(--fg-dim); text-decoration: none; }
.foot-bottom .legal a:hover { color: var(--green); }

/* Focus ring (ADA) */
a:focus-visible, button:focus-visible, .btn:focus-visible, summary:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* ---- Tablet: ~1024px — collapse grids, shrink outer gutters ---- */
@media (max-width: 1024px) {
  .nav { padding: 16px 32px; }
  .hero { padding: 90px 32px 100px; }
  .sec { padding: var(--sec-pad-y) 32px; }
  .faq-sec { padding: 100px 32px; }
  .audit-sec { padding: 24px 32px 100px; }
  .founders-sec { padding: 100px 32px; }
  .foot { padding: 72px 32px 32px; }

  .verticals { grid-template-columns: 1fr; }
  .systems { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr; }
  .founders-grid { grid-template-columns: 1fr; }
  .foot-top { grid-template-columns: 1fr 1fr; padding-left: 32px; padding-right: 32px; }
  .foot-bottom { padding-left: 32px; padding-right: 32px; }
  .audit-grid { grid-template-columns: 1fr; }
  .audit-actions { align-items: flex-start; }
  .audit-reassure { text-align: left; }

  /* Mobile nav — hamburger replaces the inline link row */
  .nav-toggle { display: inline-flex; }
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 16px;
    background: var(--navy-900);
    border-bottom: 1px solid var(--line);
    padding: 16px 32px 28px;
    max-height: calc(100vh - 100%);
    overflow-y: auto;
    z-index: 49;
  }
  .nav-menu.is-open { display: flex; }
  .nav-links { flex-direction: column; align-items: stretch; gap: 4px; width: 100%; padding-right: 0; }
  .nav-link { width: 100%; justify-content: space-between; padding: 12px 4px; }
  .nav-item { width: 100%; }
  .nav-dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    background: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border: 0;
    box-shadow: none;
    padding: 0 0 0 12px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 200ms ease;
  }
  .nav-item.is-open .nav-dropdown,
  .nav-item:focus-within .nav-dropdown {
    max-height: 320px;
    padding: 4px 0 8px 12px;
  }
  .nav-menu .btn--primary { width: 100%; justify-content: center; }
}

/* ---- ~860px — trust bar reflow ---- */
@media (max-width: 860px) {
  .trust-item { border-right: 0; padding: 0 12px; }
}

/* ---- Mobile: ~768px — type scale, single-column cards ---- */
@media (max-width: 768px) {
  .sec-title { font-size: clamp(30px, 7vw, 44px); }
  .hero h1 { font-size: clamp(28px, 7.5vw, 40px); }
  .hero-sub { font-size: 17px; }
  .signal-orn { opacity: 0.25; }
  .particles { opacity: 0.25; }
  .stat-num { font-size: clamp(48px, 14vw, 72px); }
  .v-card { grid-template-columns: 56px 1fr; padding: 28px 24px; }
  .sys { padding: 28px 24px 20px; }
  .founder-head { grid-template-columns: 80px 1fr; }
  .portrait { width: 80px; height: 80px; }
  .founders-callout { flex-direction: column; align-items: flex-start; }
  .founders-callout p { min-width: 0; }
  .foot-top { grid-template-columns: 1fr 1fr; gap: 32px; }
}

/* ---- Small mobile: ~480px — iPhone SE/mini class devices ---- */
@media (max-width: 480px) {
  :root { --sys-min: 260px; }

  .nav { padding: 14px 16px; }
  .hero { padding: 28px 20px 48px; }
  .sec { padding: var(--sec-pad-tight) 20px; }
  .faq-sec { padding: 70px 20px; }
  .audit-sec { padding: 20px 20px 70px; }
  .audit-card { padding: 36px 24px; }
  .founders-sec { padding: 70px 20px; }
  .foot { padding: 56px 0 24px; }
  .nav-menu { padding: 16px 20px 24px; }

  .foot-top { grid-template-columns: 1fr; padding-left: 20px; padding-right: 20px; }
  .foot-bottom { grid-template-columns: 1fr; gap: 16px; padding-left: 20px; padding-right: 20px; }
  .foot-bottom .legal { text-align: left; }

  .hero-ctas { flex-direction: column; align-items: stretch; }
  .hero-ctas .btn { justify-content: center; }

  .verticals { gap: 14px; }
  .v-card { grid-template-columns: 48px 1fr; gap: 16px; padding: 22px 18px; }
  .v-icon { width: 48px; height: 48px; }
  .v-icon svg { width: 22px; height: 22px; }

  .stat { padding: 26px 22px; min-height: unset; }
  .stat-num { font-size: clamp(40px, 16vw, 56px); }

  .founder { padding: 24px; }
  .founder-head { grid-template-columns: 1fr; justify-items: start; gap: 16px; }

  .audit-actions { width: 100%; }
  .audit-actions .btn { width: 100%; justify-content: center; }

  .founders-callout { padding: 24px; }
  .founders-callout .btn { width: 100%; justify-content: center; }
}