/* Suroda homepage — navy "Sound can now be aimed" build (2026-09, feature/suroda-homepage-qa).
   Scoped to index.html only; other pages keep styles.8c71f1a358.css. */
:root{
  --navy-950:#060B14; --navy-900:#0A1322; --navy-850:#0C1727; --navy-800:#101E33;
  --ink:#E9EFF8; --ink-muted:#A9B8CC; --ink-faint:#7C8CA3;
  --hairline:rgba(140,180,235,.16);
  --cyan:#6FCDF5; --cyan-bright:#9ADEFB; --cyan-deep:#2E9BD6;
  --cta-fill:#A6DDF6; --cta-ink:#06121F;
  --amber:#E8963C;
  --max:1240px; --gutter:clamp(20px,4vw,48px);
  --font-display:Manrope,Inter,-apple-system,'Segoe UI',sans-serif;
  --font-body:Inter,-apple-system,'Segoe UI',Roboto,sans-serif;
  --font-mono:'JetBrains Mono',ui-monospace,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--navy-950);color:var(--ink);font-family:var(--font-body);
  font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.inner{max-width:var(--max);margin:0 auto;padding:0 var(--gutter)}
:is(a,button,summary):focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px}
.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}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(6,11,20,.92);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--hairline)}
.navbar{display:flex;align-items:center;gap:16px;min-height:68px}
.brand{display:flex;align-items:center;gap:12px;font-family:var(--font-display);
  font-weight:700;font-size:21px;letter-spacing:.22em;text-transform:uppercase}
.brand img{width:34px;height:34px}
.nav-toggle{display:none;margin-left:auto;background:none;border:1px solid var(--hairline);
  border-radius:8px;padding:0 11px;min-width:44px;min-height:44px;align-items:center;justify-content:center;
  color:var(--ink);cursor:pointer}
.nav-toggle .bars{display:block;width:20px;height:2px;background:currentColor;position:relative}
.nav-toggle .bars::before,.nav-toggle .bars::after{content:"";position:absolute;left:0;width:20px;height:2px;background:currentColor}
.nav-toggle .bars::before{top:-6px}.nav-toggle .bars::after{top:6px}
.site-nav{margin-left:auto}
.nav-list{display:flex;align-items:center;gap:4px;list-style:none}
.nav-list a,.nav-list .nav-drop>button{display:block;padding:9px 13px;font-size:15px;color:var(--ink-muted);
  background:none;border:0;font:inherit;cursor:pointer;border-radius:8px;white-space:nowrap}
.nav-list a:hover,.nav-drop>button:hover{color:var(--ink)}
.nav-drop{position:relative}
.nav-drop>button::after{content:"";display:inline-block;margin-left:7px;width:7px;height:7px;
  border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;
  transform:translateY(-2px) rotate(45deg)}
.drop-menu{position:absolute;top:calc(100% + 6px);left:8px;min-width:200px;padding:8px;
  background:var(--navy-850);border:1px solid var(--hairline);border-radius:12px;
  box-shadow:0 16px 40px rgba(0,0,0,.5);list-style:none}
.nav-drop:not(.open) .drop-menu{display:none}
.drop-menu a{padding:9px 12px;border-radius:8px;color:var(--ink-muted)}
.drop-menu a:hover{background:var(--navy-800);color:var(--ink)}
.nav-cta{display:flex;align-items:center;gap:10px;margin-left:12px}
.nav-cta .btn{display:inline-flex;padding:10px 18px;font-weight:600}
.nav-cta .btn-outline{border:1px solid rgba(140,180,235,.34);color:var(--ink)}
.nav-cta .btn-outline:hover{border-color:var(--cyan-deep);color:var(--cyan-bright)}
.nav-cta .btn-solid{background:var(--cta-fill);color:var(--cta-ink)}
.nav-cta .btn-solid:hover{background:var(--cyan-bright)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:9px;
  padding:10px 18px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;font-family:var(--font-body)}
.btn-outline{border-color:var(--hairline);color:var(--ink)}
.btn-outline:hover{border-color:var(--cyan-deep);color:var(--cyan-bright)}
.btn-solid{background:var(--cta-fill);color:var(--cta-ink)}
.btn-solid:hover{background:var(--cyan-bright)}

/* ---------- hero ---------- */
.hero>.inner{width:100%}
.hero{position:relative;isolation:isolate;display:flex;align-items:center;
  min-height:clamp(560px,calc(100svh - 68px),980px);
  border-bottom:1px solid var(--hairline);
  /* Layer 1: legibility scrim (left). Layer 2: base tone. Layer 3: clean neighborhood
     render — drops in at /assets/hero-neighborhood.jpg; until Brian supplies it the
     gradients below stand alone (a missing background URL renders nothing, no broken UI). */
  background-image:
    linear-gradient(100deg,rgba(6,11,20,.94) 0%,rgba(6,11,20,.82) 30%,rgba(6,11,20,.28) 58%,rgba(8,14,26,.12) 100%),
    radial-gradient(120% 90% at 78% 38%,rgba(232,150,60,.14) 0%,rgba(232,150,60,0) 55%),
    linear-gradient(180deg,#0A1424 0%,#081020 55%,#060B14 100%);
  background-size:cover,cover,cover;
  background-position:right center,center,center;
  background-repeat:no-repeat}
.hero.has-art{background-image:
    linear-gradient(100deg,rgba(6,11,20,.94) 0%,rgba(6,11,20,.80) 30%,rgba(6,11,20,.22) 58%,rgba(8,14,26,.08) 100%),
    url("/assets/hero-neighborhood.jpg")}
.hero-copy{max-width:720px;padding:clamp(48px,8vh,96px) 0}
.hero h1{font-family:Manrope,Inter,-apple-system,'Segoe UI',sans-serif;font-weight:800;letter-spacing:-.02em;line-height:1.1;
  font-size:clamp(40px,4.6vw,68px);color:var(--ink)}
.hero-lead{margin-top:26px;max-width:32em;font-size:clamp(16px,1.35vw,19px);color:var(--ink-muted)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.btn-hero{font-family:var(--font-display);font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  font-size:14px;padding:15px 24px}
.btn-hero .arrow{transition:transform 180ms ease}
.btn-hero:hover .arrow{transform:translateX(3px)} 

/* ---------- three-column problem statement ---------- */
.threat-strip{border-bottom:1px solid var(--hairline);background:var(--navy-900)}
.threat-grid{display:grid;grid-template-columns:repeat(3,1fr)}
.threat-cell{display:grid;grid-template-columns:auto 1fr;gap:8px 20px;align-items:start;
  padding:clamp(28px,3.5vw,48px) clamp(20px,2.6vw,40px)}
.threat-cell + .threat-cell{border-left:1px solid var(--hairline)}
.threat-cell .icon{color:var(--cyan);margin-top:2px}
.threat-cell h2{font-family:var(--font-display);font-weight:700;font-size:16px;
  letter-spacing:.10em;text-transform:uppercase;align-self:center}
.threat-cell p{margin-top:8px;color:var(--ink-muted);font-size:15.5px}

/* ---------- process cards ---------- */
.process{padding:clamp(48px,6vw,84px) 0 clamp(56px,7vw,96px);background:var(--navy-950)}
.process-head{max-width:720px;margin:0 auto clamp(32px,4vw,52px);text-align:center}
.process-head .tag{font-family:var(--font-mono);font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--cyan-bright)}
.process-head h2{margin-top:14px;font-family:Manrope,Inter,-apple-system,'Segoe UI',sans-serif;font-weight:800;
  font-size:clamp(30px,3.4vw,46px);line-height:1.1;letter-spacing:-.01em;color:var(--ink)}
.process-head .sub{margin-top:14px;font-size:clamp(15px,1.25vw,18px);color:var(--ink-muted)}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(14px,1.6vw,22px)}
.pcard{display:flex;flex-direction:column;gap:12px;padding:28px 26px;
  background:linear-gradient(180deg,var(--navy-850),var(--navy-900));
  border:1px solid var(--hairline);border-radius:14px}
.pcard .step{display:flex;align-items:baseline;gap:10px;font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase}
.pcard .step-num{color:var(--cyan-bright)}
.pcard .step-stage{color:var(--ink-muted)}
.pcard .step-stage::before{content:"\00B7";margin-right:10px;color:var(--ink-faint)}
.pcard h3,.pcard h2{font-family:var(--font-display);font-weight:700;font-size:18px;letter-spacing:.01em;color:var(--ink)}
.pcard p{color:var(--ink-muted);font-size:15px}
.pcard .detail{margin-top:auto;padding-top:14px;border-top:1px solid var(--hairline);font-size:13.5px;color:var(--ink)}

/* ---------- trust strip ---------- */
.usecases{border-top:1px solid var(--hairline);background:var(--navy-900)}
.usecases .pcard{background:linear-gradient(180deg,var(--navy-900),var(--navy-950))}
.usecases .step-stage{text-transform:none;letter-spacing:.02em;font-family:var(--font-body,Inter,sans-serif);font-size:13px}
.trust{border-top:1px solid var(--hairline);background:var(--navy-900)}
.trust ul{display:flex;flex-wrap:wrap;justify-content:center;column-gap:14px;row-gap:6px;
  list-style:none;padding:22px 0;font-family:var(--font-mono);font-size:12.5px;
  letter-spacing:.14em;text-transform:uppercase;color:var(--ink-faint)}
.trust li{display:flex;align-items:center;gap:14px;white-space:nowrap}
.trust li + li::before{content:"·";color:var(--cyan-deep)}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--hairline);background:var(--navy-950)}
.fbar{display:flex;flex-wrap:wrap;gap:12px 28px;justify-content:space-between;
  padding:26px var(--gutter);max-width:var(--max);margin:0 auto;font-size:13.5px;color:var(--ink-faint)}
.fbar .links{display:flex;flex-wrap:wrap;gap:6px 18px}
.fbar a:hover{color:var(--ink)}


/* ---------- responsive ---------- */
@media (max-width:1023px){
  .threat-grid{grid-template-columns:1fr}
  .threat-cell + .threat-cell{border-left:0;border-top:1px solid var(--hairline)}
  .card-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1199px){
  .nav-toggle{display:inline-flex}
  .site-nav{position:fixed;inset:68px 0 auto 0;margin:0;background:var(--navy-900);
    border-bottom:1px solid var(--hairline);max-height:calc(100dvh - 68px);overflow-y:auto}
  .site-nav:not(.open){display:none}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;padding:10px var(--gutter) 18px}
  .nav-list a,.nav-drop>button{width:100%;text-align:left;padding:13px 10px;font-size:16px}
  .drop-menu{position:static;min-width:0;border:0;box-shadow:none;background:none;padding:0 0 0 18px}
  .nav-cta{margin:8px 0 0;flex-direction:column;align-items:stretch}
  .nav-cta .btn{width:100%;padding:13px}
  .hero{background-position:72% center,center,center}
  .hero.has-art{background-position:72% center,72% center}
}
@media (max-width:599px){
  .card-grid{grid-template-columns:1fr}
  .hero{min-height:min(88svh,780px)}
  .hero-actions .btn-hero{width:100%}
  .trust li{white-space:normal;text-align:center}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important;animation:none!important}
}

/* Typography audit: compact, clinical scale; applies to all pages */
.hero h1{font-size:30px;line-height:1.25;font-weight:600;letter-spacing:-.025em}
.hero-lead{margin-top:14px;font-size:16px}
.hero-actions{margin-top:24px}
.process-head{margin-bottom:clamp(16px,2vw,28px)}
.process-head .tag{margin-bottom:0}
.process-head h2{margin-top:10px;font-size:20px;line-height:1.25;font-weight:500;letter-spacing:-.025em;color:#f5f5f5}
.process-head .sub{margin-top:10px;font-size:15px}
.process,.usecases{padding:clamp(32px,4vw,56px) 0}
.threat-cell h2{font-size:16px;font-weight:600;letter-spacing:.06em}
.pcard h3,.pcard h2{font-size:16px;font-weight:600;letter-spacing:0}
@media (min-width:640px){
  .hero h1{font-size:36px}
  .process-head h2{font-size:24px}
  .threat-cell h2,.pcard h3,.pcard h2{font-size:18px}
}

/* hero fact pills */
.pills{list-style:none;margin:18px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.pills li{font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan-bright);
  padding:6px 10px;border:1px solid rgba(111,205,245,.35);border-radius:999px;background:rgba(10,19,34,.55)}
/* desktop nav row shifted left by about one button width */
@media (min-width:1280px){.site-nav{margin-right:48px}}

/* workflow cards (homepage #platform + /how-it-works): inner blocks + bottom callout with divider */
.stage-deep-dives{display:grid;gap:12px;margin-top:2px}
.stage-deep-dives h4{font-family:var(--font-display);font-size:14px;font-weight:600;color:var(--ink)}
.stage-deep-dives p{margin-top:4px}
.stage .detail,.pcard .detail{margin-top:auto;padding-top:14px;border-top:1px solid var(--hairline);font-size:13.5px;color:var(--ink)}
.pcard .step-stage:first-child::before,.stage .step-stage:first-child::before{content:none;margin:0}
/* breathing room between brand and first nav item on desktop/tablet-wide */
@media (min-width:1200px){.site-nav{padding-left:12px}}