/* ============================================================================
   NARMADA INFRASTRUCTURE — website v3  ·  futuristic construction identity
   Type system (unified, no serif/sans clash):
     Space Grotesk = display  ·  Inter = body/UI  ·  JetBrains Mono = data
   Look: cinematic dark hero with a scroll-driven 3D build (day→night),
   glassmorphism, steel-blue + safety-amber, clean light content sections.
   ========================================================================== */
:root{
  --navy:#0a1420; --navy-2:#0f1e30; --navy-3:#16263c;
  --steel:#3a76d6; --steel-2:#2f5fa8; --steel-glow:#5b93ec;
  --amber:#e0a03a; --amber-2:#c9852b;
  --paper:#f5f7fb; --paper-2:#e9edf4; --surface:#fff;
  --ink:#11202f; --ink-2:#46596c; --ink-3:#7d8da0;
  --line:#e3e8f0; --line-2:#ccd6e4;
  --glass:rgba(255,255,255,.06); --glass-line:rgba(255,255,255,.14);
  --max:1300px; --nav-h:74px; --ease:cubic-bezier(.16,1,.3,1);
  --font:'Inter','Noto Sans Gujarati',system-ui,sans-serif;
  --display:'Space Grotesk','Inter',system-ui,-apple-system,'Segoe UI',sans-serif;
  --mono:'JetBrains Mono',ui-monospace,monospace;
  --shadow:0 2px 4px rgba(10,20,32,.05),0 18px 44px -22px rgba(10,20,32,.24);
  --shadow-glow:0 0 0 1px rgba(58,118,214,.14),0 18px 50px -20px rgba(58,118,214,.4);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--paper);color:var(--ink);font-size:16px;line-height:1.6;
  -webkit-font-smoothing:antialiased;overflow-x:hidden}
::selection{background:var(--steel);color:#fff}
a{color:inherit;text-decoration:none}
img,svg,canvas{display:block;max-width:100%}
.wrap{max-width:var(--max);margin:0 auto;padding:0 5vw}
.sec{padding:clamp(64px,8vw,120px) 0;position:relative}
.sec.tint{background:linear-gradient(180deg,#eef2f8,#f5f7fb)}
.display{font-family:var(--display);font-weight:600;letter-spacing:-.02em;line-height:1.04}
.mono{font-family:var(--mono)}
.kicker{display:inline-flex;align-items:center;gap:9px;font-family:var(--mono);font-size:12px;font-weight:600;
  letter-spacing:.18em;text-transform:uppercase;color:var(--steel)}
.kicker::before{content:"";width:22px;height:1.5px;background:linear-gradient(90deg,var(--amber),transparent)}
.kicker.on-dark{color:var(--steel-glow)}
.h-display{font-family:var(--display);font-weight:600;font-size:clamp(40px,6.4vw,84px);line-height:1.01;letter-spacing:-.03em}
.h-1{font-family:var(--display);font-weight:600;font-size:clamp(30px,4vw,52px);line-height:1.08;letter-spacing:-.02em}
.h-3{font-family:var(--display);font-size:19px;font-weight:600;letter-spacing:-.01em}
.lede{font-size:clamp(16px,1.3vw,19px);color:var(--ink-2);max-width:56ch;line-height:1.7}
.muted{color:var(--ink-2)}
.grad{background:linear-gradient(100deg,var(--steel-glow),var(--steel) 45%,var(--amber));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}

/* ---------------- nav ---------------- */
nav{position:fixed;inset:0 0 auto;height:var(--nav-h);z-index:100;display:flex;align-items:center;
  transition:background .4s,box-shadow .4s,border-color .4s;border-bottom:1px solid transparent}
nav.on-dark{color:#fff}
nav.solid{background:rgba(245,247,251,.82);backdrop-filter:blur(16px) saturate(1.3);
  border-bottom-color:var(--line);color:var(--ink)}
nav.solid .brand b{color:var(--ink)}
nav .wrap{display:flex;align-items:center;gap:26px;width:100%}
.brand{display:flex;align-items:center;gap:11px}
.brand img{height:42px;width:auto;filter:drop-shadow(0 2px 6px rgba(0,0,0,.25))}
.brand b{font-family:var(--display);font-size:15px;font-weight:600;letter-spacing:.04em;color:#fff;transition:color .4s}
.brand b span{color:var(--steel-glow)}
.navlinks{margin-left:auto;display:flex;align-items:center;gap:2px}
.navlinks a{position:relative;font-size:14px;font-weight:500;padding:9px 14px;border-radius:8px;
  opacity:.82;transition:opacity .2s}
.navlinks a:hover,.navlinks a.on{opacity:1}
.navlinks a:not(.cta)::after{content:"";position:absolute;left:14px;right:100%;bottom:5px;height:1.5px;
  background:var(--amber);transition:right .3s var(--ease)}
.navlinks a:not(.cta):hover::after,.navlinks a.on:not(.cta)::after{right:14px}
.navlinks .cta{background:linear-gradient(120deg,var(--steel),var(--steel-2));color:#fff;padding:10px 18px;
  border-radius:9px;font-weight:600;opacity:1;box-shadow:var(--shadow-glow);transition:transform .25s,box-shadow .25s}
.navlinks .cta:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(58,118,214,.3),0 18px 40px -14px var(--steel)}
#burger{display:none;margin-left:auto;width:42px;height:42px;border:1px solid var(--glass-line);border-radius:9px;
  background:var(--glass);cursor:pointer;position:relative}
#burger i,#burger i::before,#burger i::after{content:"";position:absolute;left:11px;right:11px;height:2px;
  background:currentColor;transition:.25s}
#burger i{top:20px}#burger i::before{top:-6px}#burger i::after{top:6px}
@media(max-width:940px){
  #burger{display:block}
  .navlinks{position:fixed;top:var(--nav-h);left:0;right:0;background:var(--navy);color:#fff;flex-direction:column;
    align-items:stretch;padding:14px 5vw 24px;gap:2px;box-shadow:var(--shadow);
    transform:translateY(-130%);transition:transform .35s var(--ease)}
  body.menu-open .navlinks{transform:none}
  .navlinks a{padding:13px;opacity:1}
}

/* ---------------- buttons ---------------- */
.btn{display:inline-flex;align-items:center;gap:9px;font-family:var(--display);font-weight:600;font-size:15px;
  padding:14px 26px;border-radius:11px;transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s;
  position:relative;overflow:hidden;border:1px solid transparent;cursor:pointer;letter-spacing:-.01em}
.btn::before{content:"";position:absolute;top:0;bottom:0;left:-70%;width:45%;
  background:linear-gradient(105deg,transparent,rgba(255,255,255,.3),transparent);transform:skewX(-18deg);transition:left .6s var(--ease)}
.btn:hover::before{left:135%}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:linear-gradient(120deg,var(--steel),var(--steel-2));color:#fff;box-shadow:var(--shadow-glow)}
.btn-primary:hover{box-shadow:0 0 0 1px rgba(58,118,214,.3),0 20px 44px -16px var(--steel)}
.btn-amber{background:linear-gradient(120deg,var(--amber),var(--amber-2));color:#1a1206}
.btn-amber:hover{box-shadow:0 20px 44px -16px var(--amber)}
.btn-glass{background:var(--glass);border-color:var(--glass-line);color:#fff;backdrop-filter:blur(8px)}
.btn-glass:hover{background:rgba(255,255,255,.12)}
.btn-line{border-color:var(--line-2);color:var(--ink);background:var(--surface)}
.btn-line:hover{border-color:var(--steel);color:var(--steel)}
.btn .ar{transition:transform .25s}.btn:hover .ar{transform:translateX(4px)}

/* ================= HERO — text left · contained 3D stage right ============= */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;color:#fff;overflow:hidden;isolation:isolate;
  background:radial-gradient(130% 110% at 82% 8%,#14294300 0%,#0a1420 62%),
             linear-gradient(180deg,#0b1726 0%,#0a1420 100%)}
.hero-grid{position:absolute;inset:0;z-index:0;opacity:.45;pointer-events:none;
  background-image:linear-gradient(rgba(91,147,236,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(91,147,236,.08) 1px,transparent 1px);
  background-size:62px 62px;mask-image:radial-gradient(100% 90% at 25% 25%,#000 15%,transparent 88%)}
.hero-wrap{position:relative;z-index:2;width:100%;max-width:var(--max);margin:0 auto;min-height:100vh;
  padding:calc(var(--nav-h) + 2vh) 5vw 3vh;display:grid;grid-template-columns:1.04fr .96fr;
  gap:clamp(30px,4vw,64px);align-items:center}
.hero-copy{max-width:600px}
.hero .h-display{font-size:clamp(34px,4.5vw,60px);line-height:1.04;margin-top:18px;text-shadow:0 4px 30px rgba(0,0,0,.35)}
.hero .lede{color:#c1d0e2;margin-top:20px;max-width:46ch}
.hero-cta{margin-top:30px;display:flex;gap:13px;flex-wrap:wrap}
.hero-stats{margin-top:clamp(30px,4vw,44px);display:flex;gap:clamp(20px,3vw,42px);flex-wrap:wrap}
.hs b{font-family:var(--display);font-size:clamp(23px,2.3vw,31px);font-weight:600;display:flex;align-items:baseline;line-height:1}
.hs b i{font-style:normal;font-size:.48em;color:var(--amber);margin-left:3px;letter-spacing:0}
.hs>span{font-family:var(--mono);font-size:9.5px;font-weight:500;letter-spacing:.13em;text-transform:uppercase;color:#7f9fc4;margin-top:8px;display:block}

/* the contained 3D viewport — building can never spill onto the text */
.hero-stage{position:relative;aspect-ratio:1/1.18;width:100%;max-height:84vh;border-radius:22px;overflow:hidden;
  border:1px solid rgba(255,255,255,.1);background:linear-gradient(180deg,#13273f,#0a1420);
  box-shadow:0 40px 90px -34px rgba(0,0,0,.75),0 0 0 1px rgba(255,255,255,.02),inset 0 1px 0 rgba(255,255,255,.06)}
#buildCanvas{position:absolute;inset:0;width:100%;height:100%;display:block}
.stage-scrim{position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(10,20,32,.28),transparent 26%,transparent 66%,rgba(10,20,32,.62));
  box-shadow:inset 0 0 70px rgba(6,12,22,.5)}
.stage-top{position:absolute;top:15px;left:17px;right:17px;display:flex;justify-content:space-between;align-items:center;
  z-index:3;font-family:var(--mono);font-size:9.5px;letter-spacing:.15em;color:#9fc0e8}
.stage-top .live{display:inline-flex;align-items:center;gap:6px;color:#eaf2fb}
.stage-top .live i{width:7px;height:7px;border-radius:50%;background:#4ad07a;box-shadow:0 0 9px #4ad07a;animation:blip 1.8s ease-in-out infinite}
@keyframes blip{0%,100%{opacity:1}50%{opacity:.35}}
.hero-hud{position:absolute;left:16px;bottom:16px;z-index:3;display:flex;flex-direction:column;gap:7px;
  background:rgba(11,22,36,.5);border:1px solid rgba(255,255,255,.14);backdrop-filter:blur(14px);border-radius:13px;
  padding:14px 17px;min-width:196px}
.hero-hud .hud-t{font-family:var(--mono);font-size:9.5px;letter-spacing:.16em;text-transform:uppercase;color:#8fb0d8}
.hero-hud .hud-v{font-family:var(--display);font-size:30px;font-weight:600;line-height:1;display:flex;align-items:baseline;gap:5px}
.hero-hud .hud-v i{font-style:normal;font-size:13px;color:var(--amber)}
.hero-hud .hud-bar{height:5px;border-radius:3px;background:rgba(255,255,255,.12);overflow:hidden;margin-top:3px}
.hero-hud .hud-bar b{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--steel-glow),var(--amber));transition:width .2s linear}
.hero-hud .hud-phase{font-size:11.5px;color:#c4d2e2;font-weight:500;display:flex;align-items:center;gap:7px}
.hero-hud .hud-phase i{width:7px;height:7px;border-radius:50%;background:var(--amber);flex:0 0 auto;box-shadow:0 0 8px var(--amber)}
@media(max-width:960px){
  .hero-wrap{grid-template-columns:1fr;gap:34px}
  .hero-stage{aspect-ratio:16/13;max-height:52vh;order:2}
  .hero-copy{max-width:none;order:1}
}
@media(max-width:520px){.hero-stage{aspect-ratio:4/3}.hero-hud{min-width:0}.hs b{font-size:26px}}
.scroll-cue{position:absolute;left:50%;bottom:18px;z-index:3;transform:translateX(-50%);font-family:var(--mono);
  font-size:9.5px;letter-spacing:.3em;color:#7f9fc4;display:flex;flex-direction:column;align-items:center;gap:6px;animation:cue 2.2s ease-in-out infinite}
.scroll-cue::after{content:"";width:1px;height:24px;background:linear-gradient(var(--amber),transparent)}
@keyframes cue{0%,100%{opacity:.5;transform:translate(-50%,0)}50%{opacity:1;transform:translate(-50%,5px)}}
@media(max-width:960px){.scroll-cue{display:none}}

/* the scroll-driven build section: sticky canvas, tall scroll track */
#build-scroll{position:relative;background:var(--navy);color:#fff}
.build-track{height:360vh;position:relative}
.build-stage{position:sticky;top:0;height:100vh;overflow:hidden}
.build-stage canvas{position:absolute;inset:0;width:100%;height:100%}
.build-stage::before{content:"";position:absolute;inset:0;z-index:2;pointer-events:none;
  background:linear-gradient(90deg,rgba(8,15,25,.82) 0%,rgba(8,15,25,.5) 26%,transparent 48%)}
.build-copy{position:absolute;left:5vw;top:0;height:100%;display:flex;align-items:center;z-index:3;max-width:440px;pointer-events:none}
.bphase{position:absolute;opacity:0;transform:translateY(20px);transition:opacity .5s,transform .5s}
.bphase.on{opacity:1;transform:none;position:relative}
.bphase .num{font-family:var(--mono);font-size:12px;letter-spacing:.18em;color:var(--amber)}
.bphase h3{font-family:var(--display);font-size:clamp(26px,3.2vw,40px);font-weight:600;margin:8px 0 12px;letter-spacing:-.02em}
.bphase p{color:#b6c6d8;font-size:15.5px;line-height:1.7}
.build-hud{position:absolute;right:5vw;top:50%;transform:translateY(-50%);z-index:3;text-align:right}
.build-hud .pct{font-family:var(--display);font-size:clamp(60px,9vw,120px);font-weight:600;line-height:.9;color:#fff;letter-spacing:-.04em}
.build-hud .pct i{font-style:normal;font-size:.3em;color:var(--amber)}
.build-hud .plabel{font-family:var(--mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:#8fb0d8;margin-top:6px}
.build-hud .daynight{margin-top:14px;font-family:var(--mono);font-size:11px;color:#c4d2e2;display:flex;gap:8px;justify-content:flex-end;align-items:center}
@media(max-width:820px){
  .build-track{height:300vh}
  .build-hud{display:none}
  /* copy drops to the bottom of the frame and gets its own vertical scrim,
     so the structure above it stays fully visible on a phone */
  .build-stage::before{background:linear-gradient(180deg,rgba(8,15,25,.45) 0%,rgba(8,15,25,0) 26%,rgba(8,15,25,.72) 58%,rgba(8,15,25,.96) 100%)}
  .build-copy{left:0;right:0;top:auto;bottom:0;height:auto;max-width:none;
    align-items:flex-end;padding:0 22px calc(30px + env(safe-area-inset-bottom,0px))}
  .build-copy .wrap{padding:0!important;width:100%;max-width:100%}
  .bphase{width:100%}
  .bphase .num{font-size:11px;letter-spacing:.16em}
  .bphase h3{font-size:clamp(23px,6.4vw,32px);margin:6px 0 9px;text-wrap:balance}
  .bphase p{font-size:14.5px;line-height:1.62;color:#c6d4e4}
}
@media(max-width:420px){
  .build-copy{padding:0 18px calc(26px + env(safe-area-inset-bottom,0px))}
  .bphase p{font-size:13.8px}
}

/* ---------------- reveals ---------------- */
.rv{opacity:0;transform:translateY(28px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.rv.in{opacity:1;transform:none}
.rv.d1{transition-delay:.08s}.rv.d2{transition-delay:.16s}.rv.d3{transition-delay:.24s}.rv.d4{transition-delay:.32s}

/* ---------------- feature cards (glass, reactive) ---------------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:clamp(30px,4vw,54px)}
@media(max-width:920px){.cards{grid-template-columns:1fr}}
.card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:28px;position:relative;
  overflow:hidden;transition:transform .4s var(--ease),box-shadow .4s var(--ease),border-color .3s}
.card::after{content:"";position:absolute;inset:0;border-radius:16px;padding:1px;pointer-events:none;opacity:0;
  background:linear-gradient(130deg,var(--steel-glow),transparent 40%,transparent 60%,var(--amber));
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;transition:opacity .4s}
.card:hover{transform:translateY(-6px);box-shadow:0 30px 60px -30px rgba(20,40,70,.35)}
.card:hover::after{opacity:1}
.card .num{font-family:var(--mono);font-size:12px;color:var(--ink-3);letter-spacing:.1em}
.card h3{margin:12px 0 8px}
.card p{font-size:14.5px;color:var(--ink-2);line-height:1.65}
.card .ico{width:52px;height:52px;border-radius:13px;background:linear-gradient(135deg,#eaf1fc,#dfeaf8);
  display:grid;place-items:center;color:var(--steel);margin-bottom:16px;transition:transform .4s var(--ease)}
.card:hover .ico{transform:translateY(-3px) rotate(-4deg)}
.card .ico svg{width:26px;height:26px;stroke:currentColor;fill:none;stroke-width:1.7}
.card .go{position:absolute;right:24px;top:24px;color:var(--line-2);font-size:18px;transition:.3s}
.card:hover .go{color:var(--amber);transform:translate(3px,-3px)}

/* ---------------- split ---------------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,5vw,76px);align-items:center}
@media(max-width:920px){.split{grid-template-columns:1fr}}
.panel{border:1px solid var(--line);border-radius:18px;overflow:hidden;background:linear-gradient(160deg,#0e1d30,#0a1420);
  box-shadow:var(--shadow)}
.panel .cap{display:flex;justify-content:space-between;font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;
  color:#7fa2c8;padding:12px 16px;border-top:1px solid rgba(255,255,255,.08)}

/* ---------------- marquee ---------------- */
.marquee{overflow:hidden;background:var(--navy);color:#7fa2c8;padding:14px 0;white-space:nowrap;border-top:1px solid rgba(255,255,255,.06);border-bottom:1px solid rgba(255,255,255,.06)}
.marquee .track{display:inline-block;animation:mq 34s linear infinite}
.marquee span{font-family:var(--mono);font-size:12px;font-weight:500;letter-spacing:.18em;text-transform:uppercase;margin-right:42px}
.marquee i{color:var(--amber);font-style:normal;margin-left:42px}
@keyframes mq{to{transform:translateX(-50%)}}

/* ---------------- timeline ---------------- */
.timeline{display:flex;flex-direction:column}
.tstep{position:relative;padding:0 0 28px 36px}
.tstep::before{content:"";position:absolute;left:7px;top:8px;bottom:-4px;width:2px;background:var(--line-2)}
.tstep:last-child::before{display:none}
.tstep::after{content:"";position:absolute;left:0;top:5px;width:16px;height:16px;border-radius:50%;background:var(--surface);border:3px solid var(--steel)}
.tstep .tnum{font-family:var(--mono);font-size:12px;color:var(--amber-2);letter-spacing:.1em;font-weight:600}
.tstep h3{margin:3px 0 5px}
.tstep p{font-size:14.5px;color:var(--ink-2)}

/* ---------------- project cases ---------------- */
.case{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(26px,4vw,60px);align-items:center;margin-bottom:clamp(40px,6vw,84px)}
.case:nth-child(even){grid-template-columns:.95fr 1.05fr}
.case:nth-child(even) .case-media{order:2}
@media(max-width:860px){.case,.case:nth-child(even){grid-template-columns:1fr}.case:nth-child(even) .case-media{order:0}}
.case-media{position:relative;border-radius:18px;overflow:hidden;border:1px solid var(--line);background:#0c1a2b;box-shadow:var(--shadow)}
.case-media .tag{position:absolute;top:14px;left:14px;z-index:2;font-family:var(--mono);font-size:10px;font-weight:600;
  letter-spacing:.1em;background:rgba(10,20,32,.72);color:#fff;padding:6px 11px;border-radius:6px;border:1px solid var(--glass-line)}
.case-meta{display:flex;gap:clamp(16px,3vw,34px);margin-top:22px;flex-wrap:wrap}
.case-meta b{font-family:var(--display);font-size:24px;font-weight:600;display:block;line-height:1}
.case-meta span{font-family:var(--mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);margin-top:4px;display:block}

/* ---------------- big CTA ---------------- */
.bigcta{position:relative;background:linear-gradient(160deg,#0a1420,#12263e);color:#fff;
  padding:clamp(64px,9vw,120px) 0;text-align:center;overflow:hidden}
.bigcta .hero-grid{opacity:.14;mask-image:none}
.bigcta h2{font-family:var(--display);font-weight:600;font-size:clamp(32px,4.6vw,58px);position:relative;letter-spacing:-.02em}
.bigcta p{color:#b6c6d8;margin:16px auto 32px;max-width:52ch;position:relative}

/* ---------------- forms ---------------- */
.f-field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}
.f-field label{font-family:var(--mono);font-size:11px;font-weight:500;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3)}
.f-field input,.f-field select,.f-field textarea{background:var(--surface);border:1.5px solid var(--line-2);border-radius:11px;
  font:500 15px var(--font);color:var(--ink);padding:13px 15px;outline:none;transition:.2s}
.f-field input:focus,.f-field select:focus,.f-field textarea:focus{border-color:var(--steel);box-shadow:0 0 0 3px rgba(58,118,214,.14)}
.f-field textarea{min-height:120px;resize:vertical}

/* ---------------- footer ---------------- */
footer{background:#08111c;color:#8098b2;padding:clamp(48px,6vw,76px) 0 28px;font-size:14.5px}
.fgrid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:34px}
@media(max-width:920px){.fgrid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.fgrid{grid-template-columns:1fr}}
footer h4{font-family:var(--mono);color:#fff;font-size:11px;letter-spacing:.16em;text-transform:uppercase;margin-bottom:15px}
footer a{display:block;padding:4px 0;transition:color .2s}
footer a:hover{color:#fff}
footer .brand b{color:#fff}
.foot-bottom{border-top:1px solid rgba(255,255,255,.08);margin-top:40px;padding-top:22px;display:flex;
  justify-content:space-between;gap:14px;flex-wrap:wrap;font-family:var(--mono);font-size:11.5px;color:#5b7089}

/* page hero (interior pages) */
.phero{position:relative;background:linear-gradient(180deg,#0a1420,#0f1e30);color:#fff;padding:calc(var(--nav-h) + clamp(26px,3.4vw,48px)) 0 clamp(26px,3.4vw,48px);overflow:hidden}
.phero .hero-grid{mask-image:radial-gradient(80% 90% at 30% 20%,#000 30%,transparent 100%)}
.phero .lede{color:#c4d2e2}
.phero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(28px,4vw,60px);align-items:center;position:relative;z-index:2}
@media(max-width:920px){.phero-grid{grid-template-columns:1fr}}
/* live 3D panel on interior page heroes */
.phero-stage{position:relative;aspect-ratio:16/11.4;width:100%;border-radius:18px;overflow:hidden;
  border:1px solid rgba(255,255,255,.1);background:linear-gradient(180deg,#13273f,#0a1420);
  box-shadow:0 34px 80px -34px rgba(0,0,0,.7),inset 0 1px 0 rgba(255,255,255,.05)}
.phero-stage canvas{position:absolute;inset:0;width:100%;height:100%}
@media(max-width:920px){.phero-stage{aspect-ratio:16/11;max-height:46vh}}

@media (prefers-reduced-motion:reduce){*{animation-duration:.01s!important;transition-duration:.01s!important}}

/* =========================================================================
   MOBILE POLISH — phones and small tablets
   Uses small-viewport units so browser chrome (address bar) can never
   stretch a full-height section past the visible screen.
   ========================================================================= */
@supports (height:100svh){
  .hero,.hero-wrap{min-height:100svh}
  .build-stage{height:100svh}
}
@media(max-width:940px){
  /* menu panel must not swallow taps while it is closed */
  .navlinks{pointer-events:none;max-height:calc(100svh - var(--nav-h));overflow-y:auto}
  body.menu-open .navlinks{pointer-events:auto}
  .navlinks .cta{margin-top:8px;text-align:center;justify-content:center}
}
@media(max-width:640px){
  /* four stats read as a tidy 2×2 block instead of 3 + 1 orphan */
  .hero-stats{display:grid;grid-template-columns:1fr 1fr;gap:22px 14px;flex-wrap:nowrap}
  .hs>span{font-size:9px;letter-spacing:.1em;margin-top:6px}
  .hero-cta{gap:10px}
  .hero-cta .btn{flex:1 1 100%;justify-content:center}
  .hero .lede{max-width:none}
  .marquee span{font-size:11px;margin-right:30px}
  .marquee i{margin-left:30px}
  .case-meta{gap:18px 22px}
  .case-meta b{font-size:21px}
  .foot-bottom{flex-direction:column;gap:8px;text-align:left}
  .bigcta p{margin-bottom:26px}
  .tstep{padding-left:32px}
  .panel .cap{flex-direction:column;gap:3px}
}
@media(max-width:420px){
  .brand img{height:36px}
  .brand b{font-size:13.5px}
  .hero-stage{aspect-ratio:1/1.02}
  .hs b{font-size:24px}
}
/* Nothing may push the page sideways on a phone.
   `clip` (not `hidden`) — `hidden` would turn <body> into a scroll container
   and silently break every position:sticky section on the page. */
body{overflow-x:clip}
img,svg,canvas,video{max-width:100%}

/* ---------------- FAQ accordion ---------------- */
.faq{margin-top:clamp(26px,3.4vw,40px);border-top:1px solid var(--line)}
.faq-i{border-bottom:1px solid var(--line)}
.faq-i summary{list-style:none;cursor:pointer;display:flex;align-items:flex-start;gap:16px;
  padding:20px 0;font-family:var(--display);font-weight:600;font-size:clamp(16px,1.35vw,19px);
  color:var(--ink);letter-spacing:-.01em;transition:color .2s}
.faq-i summary::-webkit-details-marker{display:none}
.faq-i summary::after{content:"+";margin-left:auto;flex:0 0 auto;font-family:var(--mono);font-size:20px;
  line-height:1;color:var(--steel);transition:transform .3s var(--ease)}
.faq-i[open] summary::after{transform:rotate(45deg)}
.faq-i summary:hover{color:var(--steel)}
.faq-a{padding:0 44px 22px 0}
.faq-a p{font-size:15px;line-height:1.72;color:var(--ink-2);max-width:74ch}
@media(max-width:640px){
  .faq-i summary{padding:17px 0;gap:12px}
  .faq-a{padding:0 0 18px}
  .faq-a p{font-size:14.5px}
}

/* ---------------- coverage / districts ---------------- */
.areas{display:flex;flex-wrap:wrap;gap:9px;margin-top:22px}
.areas span{font-family:var(--mono);font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--ink-2);border:1px solid var(--line-2);border-radius:999px;padding:8px 14px;background:var(--surface)}