/* ============================================================
   StratoSense — landing prototype
   Visual system matched to the StratoSense site (#F5F5F5 / #0B0B0B / #FFC107)
   and the Pilot Base flat-vector illustration language.
   Light ground, black ink, single gold accent. No blue anywhere
   except the Cap's physical status LED.
   ============================================================ */

:root{
  --bg:#F5F5F5;
  --bg-2:#FFFFFF;
  --bg-3:#EFEFEF;
  --ink:#0B0B0B;
  --ink-2:#4A4A4A;
  --ink-3:#8A8A8A;
  --line:#E2E2E2;
  --line-2:#CFCFCF;

  --gold:#FFC107;
  --gold-2:#E8A317;
  --gold-3:#FFD968;
  --gold-wash:#FFF6DC;
  --gold-line:rgba(255,193,7,.55);

  --ok:#2E9E6B;
  --ok-wash:#E7F5EE;
  --alarm:#C83A32;

  /* illustration palette */
  --mtn-1:#EDEDED; --mtn-2:#E0E0E0; --mtn-3:#D2D2D2; --mtn-line:#C2C2C2;
  --city-1:#CFCFCF; --city-2:#B6B6B6; --city-3:#9C9C9C;
  --field-1:#FFC107; --field-2:#F0B000; --field-3:#FFD34D;
  --sun:#FDF1D6;

  --r:12px; --r-s:8px; --r-l:20px; --r-xl:28px;
  --wrap:1280px;
  --f:'Hanken Grotesk','Inter',system-ui,-apple-system,'Segoe UI',sans-serif;
  --fm:'JetBrains Mono',ui-monospace,Consolas,monospace;
  --ease:cubic-bezier(.22,.61,.36,1);
  --sh:0 1px 2px rgba(11,11,11,.04),0 8px 26px rgba(11,11,11,.06);
  --sh-l:0 2px 6px rgba(11,11,11,.05),0 18px 50px rgba(11,11,11,.09);
}

*,*::before,*::after{box-sizing:border-box}
*{margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--ink);font-family:var(--f);font-size:16px;line-height:1.6;
  -webkit-font-smoothing:antialiased;font-feature-settings:'tnum' 1;overflow-x:hidden}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:28px}
.mono{font-family:var(--fm);font-variant-numeric:tabular-nums}
.gold{color:var(--gold-2)}
.vh{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-9999px;top:0;z-index:200;background:var(--gold);color:var(--ink);padding:12px 20px;font-weight:800;border-radius:0 0 var(--r-s) 0}
.skip:focus{left:0}
:focus-visible{outline:2.5px solid var(--gold-2);outline-offset:3px;border-radius:4px}

/* ── type ───────────────────────────────────────────────── */
h1,h2,h3,h4{line-height:1.08;letter-spacing:-.028em;font-weight:800}
h1{font-size:clamp(2.9rem,7vw,5.6rem);letter-spacing:-.042em;text-transform:uppercase}
h2{font-size:clamp(2rem,4.2vw,3.4rem);text-transform:uppercase}
h3{font-size:1.1rem;letter-spacing:-.012em;text-transform:none}
p{text-wrap:pretty}

.eyebrow{display:flex;align-items:center;gap:12px;font-size:.66rem;font-weight:800;letter-spacing:.2em;text-transform:uppercase;color:var(--ink-3)}
.eyebrow .rule{width:40px;height:3px;background:var(--gold);border-radius:2px;flex:none}
.hrule{width:64px;height:3px;background:var(--gold);border-radius:2px;margin:20px 0 22px}
.lede{font-size:clamp(1.05rem,1.5vw,1.3rem);color:var(--ink-2);max-width:54ch;font-weight:500}
.sec-sub{color:var(--ink-2);max-width:60ch;margin-top:16px;font-size:1.02rem}
.note{color:var(--ink-3);font-size:.84rem;max-width:74ch;margin-top:24px}
.sim-note{color:var(--ink-3);font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;margin-top:12px;font-weight:700}

/* ── buttons ────────────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:15px 30px;
  border-radius:999px;border:2px solid var(--gold);background:var(--gold);color:var(--ink);
  font-weight:800;font-size:.9rem;letter-spacing:.03em;cursor:pointer;transition:.22s var(--ease);text-transform:uppercase}
.btn:hover{background:var(--gold-2);border-color:var(--gold-2);transform:translateY(-2px);box-shadow:0 10px 26px rgba(255,193,7,.34)}
.btn:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line-2)}
.btn-ghost:hover{background:var(--ink);border-color:var(--ink);color:#fff;box-shadow:none}
.btn-sm{padding:10px 20px;font-size:.76rem}
.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

.pill{display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;border:1.5px solid var(--line-2);
  background:#fff;font-size:.64rem;font-weight:800;letter-spacing:.11em;color:var(--ink-2)}
.pill.ok{color:var(--ok);border-color:#A9DCC4;background:var(--ok-wash)}
.pill.warn{color:var(--gold-2);border-color:var(--gold-line);background:var(--gold-wash)}
.dot{width:9px;height:9px;border-radius:50%;background:var(--ink-3);flex:none}
.dot.ok{background:var(--ok)}
.dot.warn{background:var(--gold)}

/* ── nav ────────────────────────────────────────────────── */
.nav{position:sticky;top:0;z-index:100;background:rgba(245,245,245,.88);backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;transition:border-color .3s,background .3s}
.nav.stuck{border-bottom-color:var(--line);background:rgba(245,245,245,.97)}
.nav-in{display:flex;align-items:center;gap:26px;height:76px}
.brand{display:flex;align-items:center;gap:12px;flex:none}
.brand-mark{width:34px;height:30px;flex:none}
.brand-txt{display:flex;flex-wrap:wrap;align-items:baseline;line-height:1}
.brand-txt b{font-weight:800;font-size:1.16rem;letter-spacing:-.01em}
.brand-txt i{font-style:normal;font-weight:800;color:var(--gold-2);font-size:1.16rem;letter-spacing:-.01em}
.brand-txt em{flex-basis:100%;font-style:normal;font-size:.47rem;letter-spacing:.3em;color:var(--ink-3);margin-top:5px;text-transform:uppercase;font-weight:700}
.nav-links{display:flex;gap:28px;margin-left:auto;font-size:.85rem;font-weight:600;color:var(--ink-2)}
.nav-links a{position:relative;padding:4px 0;transition:color .2s}
.nav-links a::after{content:'';position:absolute;left:0;right:100%;bottom:0;height:2.5px;background:var(--gold);border-radius:2px;transition:right .26s var(--ease)}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after{right:0}
.nav-toggle{display:none;flex-direction:column;gap:5px;width:44px;height:44px;align-items:center;justify-content:center;
  background:#fff;border:1.5px solid var(--line-2);border-radius:var(--r-s);cursor:pointer;margin-left:auto}
.nav-toggle span{width:18px;height:2px;background:var(--ink);transition:.25s var(--ease);border-radius:2px}
.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)}
.nav-drawer{display:none;flex-direction:column;border-top:1px solid var(--line);background:#fff}
.nav-drawer a{padding:16px 28px;border-bottom:1px solid var(--line);color:var(--ink-2);font-weight:600}
.nav-drawer a:hover{color:var(--gold-2);background:var(--bg)}

/* ── scene (shared illustration) ────────────────────────── */
.scene{width:100%;height:auto;display:block}
.cloud{fill:none;stroke:var(--line-2);stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
.bird{fill:none;stroke:var(--ink);stroke-width:2.2;stroke-linecap:round}
.sun-c{fill:var(--sun)}
.m1{fill:var(--mtn-1)}.m2{fill:var(--mtn-2)}.m3{fill:var(--mtn-3)}
.m-line{fill:none;stroke:var(--mtn-line);stroke-width:2;stroke-linejoin:round}
.snow{fill:#fff}
.c1{fill:var(--city-1)}.c2{fill:var(--city-2)}.c3{fill:var(--city-3)}
.c-win{fill:var(--gold)}
.f1{fill:var(--field-1)}.f2{fill:var(--field-2)}.f3{fill:var(--field-3)}
.furrow{fill:none;stroke:#0B0B0B;stroke-width:2;opacity:.24;stroke-linecap:round}
.furrow-l{stroke:#fff;opacity:.5}
.blk{fill:var(--ink)}
.beam{fill:var(--gold);opacity:.22}
.tower{fill:none;stroke:var(--ink);stroke-width:2.6;stroke-linejoin:round}
.tower-g{fill:var(--gold)}
.prop{fill:var(--ink)}
.dr-body{fill:var(--ink)}
.dr-gold{fill:var(--gold)}

/* hero-only motion */
.heli{transform-box:fill-box;transform-origin:center;animation:hover 4.6s var(--ease) infinite}
@keyframes hover{0%,100%{transform:translateY(0)}50%{transform:translateY(-9px)}}
.spin{transform-box:fill-box;transform-origin:center;animation:spin 1.1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.tele{stroke:var(--gold-2);stroke-width:2.4;stroke-dasharray:6 8;fill:none;animation:march 1.6s linear infinite}
@keyframes march{to{stroke-dashoffset:-28}}

/* ── hero ───────────────────────────────────────────────── */
.hero{position:relative;background:var(--bg-2);border-bottom:1px solid var(--line);overflow:hidden}
.hero-in{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;padding-block:clamp(48px,6vw,84px)}
.hero-copy h1{margin:22px 0 0}
.hero-copy h1 em{font-style:normal;color:var(--gold-2)}
.hero-sub{font-size:clamp(1.15rem,2vw,1.6rem);font-weight:700;letter-spacing:-.02em;margin-top:14px;line-height:1.2}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-marks{display:flex;flex-wrap:wrap;gap:0;margin-top:40px;border-top:1px solid var(--line);padding-top:26px}
.hero-marks li{list-style:none;flex:1;min-width:120px;padding-right:18px;border-right:1px solid var(--line)}
.hero-marks li:last-child{border-right:0;padding-right:0}
.hero-marks b{display:block;font-size:.74rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase}
.hero-marks span{display:block;font-size:.76rem;color:var(--ink-3);margin-top:5px;line-height:1.4}
.hero-art{position:relative}
.hero-hud{background:#fff;border:1.5px solid var(--line);border-radius:var(--r);
  box-shadow:var(--sh);padding:16px 20px;margin-top:18px;position:relative;z-index:2;max-width:420px;margin-inline:auto}
.hud-top{display:flex;align-items:center;gap:9px;font-size:.76rem;letter-spacing:.11em;color:var(--ok);font-weight:800}
.hud-id{margin-left:auto;font-family:var(--fm);font-size:.7rem;color:var(--ink-3);letter-spacing:0}
.hud-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:12px}
.hud-grid dt{font-size:.53rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);font-weight:700}
.hud-grid dd{font-family:var(--fm);font-size:1.22rem;margin-top:3px;font-weight:500}
.hud-grid dd i,.demo-grid dd i{font-style:normal;font-size:.6rem;color:var(--ink-3);margin-left:3px}
.hud-grid dd.sm,.demo-grid dd .sm{font-size:.82rem;font-family:var(--f);font-weight:700}

/* ── strips / sections ──────────────────────────────────── */
.strip{background:var(--ink);color:#fff;padding-block:26px}
.strip-in{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:10px 28px;text-align:center}
.strip-in b{font-size:clamp(1.05rem,2vw,1.5rem);font-weight:800;letter-spacing:.01em;text-transform:uppercase}
.strip-in i{font-style:normal;color:var(--gold);font-size:.9rem}

.sec{padding-block:clamp(72px,8.5vw,120px);border-bottom:1px solid var(--line)}
.sec-w{background:var(--bg-2)}
.sec-hd{margin-bottom:clamp(38px,5vw,60px);max-width:760px}
.sec-hd h2{margin-top:16px}
.sec-hd h2 em{font-style:normal;color:var(--gold-2)}

.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ── feature row (Pilot Base pattern) ───────────────────── */
.frow{display:grid;grid-template-columns:repeat(4,1fr);gap:0;background:#fff;border:1.5px solid var(--line);
  border-radius:var(--r-xl);box-shadow:var(--sh);overflow:hidden}
.frow li{list-style:none;padding:28px 26px;border-right:1px solid var(--line);display:flex;gap:16px;align-items:flex-start}
.frow li:last-child{border-right:0}
.frow .ico{width:40px;height:40px;flex:none;color:var(--gold-2)}
.frow b{display:block;font-size:.95rem;font-weight:800}
.frow p{font-size:.84rem;color:var(--ink-2);margin-top:4px;line-height:1.45}

/* ── steps ──────────────────────────────────────────────── */
.steps{list-style:none;display:grid;gap:20px;grid-template-columns:repeat(5,1fr)}
.step{background:#fff;border:1.5px solid var(--line);border-radius:var(--r-l);padding:26px 22px;display:flex;flex-direction:column;
  transition:border-color .25s,transform .25s,box-shadow .25s}
.step:hover{border-color:var(--gold);transform:translateY(-4px);box-shadow:var(--sh-l)}
.step-n{font-family:var(--fm);font-size:1.5rem;font-weight:500;color:var(--gold);line-height:1}
.step h3{margin:14px 0 9px;font-weight:800;text-transform:uppercase;font-size:.95rem;letter-spacing:.06em}
.step p{font-size:.85rem;color:var(--ink-2)}
.step-art{width:100%;height:auto;margin-top:auto;padding-top:22px}
.sa-box{fill:#fff;stroke:var(--line-2);stroke-width:1.5}
.sa-box.sa-ok{stroke:#A9DCC4;fill:var(--ok-wash)}
.sa-t{fill:var(--ink);font-family:var(--fm);font-size:11px;text-anchor:middle}
.sa-t.sa-okt{fill:var(--ok);font-family:var(--f);font-weight:800;font-size:10px;letter-spacing:.1em}
.sa-s{fill:var(--ink-3);font-size:9px;text-anchor:middle;font-family:var(--f);font-weight:600}
.sa-link{stroke:var(--gold);stroke-width:2;stroke-dasharray:4 4}
.sa-trace{fill:none;stroke:var(--gold);stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round}
.sa-pk{fill:var(--gold-2)}
.step.in .sa-trace{stroke-dasharray:260;stroke-dashoffset:260;animation:draw 1.1s var(--ease) .2s forwards}
@keyframes draw{to{stroke-dashoffset:0}}

/* ── devices ────────────────────────────────────────────── */
.devices{display:grid;grid-template-columns:1fr auto 1fr;gap:26px;align-items:stretch}
.device{background:#fff;border:1.5px solid var(--line);border-radius:var(--r-xl);padding:32px;
  transition:border-color .25s,box-shadow .25s;box-shadow:var(--sh)}
.device:hover,.device:focus-visible{border-color:var(--gold);box-shadow:var(--sh-l)}
.dev-side{font-size:.62rem;letter-spacing:.17em;text-transform:uppercase;font-weight:800;display:inline-flex;
  align-items:center;gap:8px;padding:6px 14px;border-radius:999px;border:1.5px solid var(--line-2)}
.dev-side-air{color:var(--ink);border-color:var(--gold);background:var(--gold-wash)}
.dev-side-ground{color:var(--ink-2)}
.device h3{font-size:1.8rem;margin:18px 0 22px;font-weight:800;text-transform:uppercase;letter-spacing:-.02em}
.dev-stage{background:var(--bg);border:1.5px solid var(--line);border-radius:var(--r);padding:14px;margin-bottom:22px}
.dev-svg{width:100%;height:auto}
.dev-call{opacity:0;transition:opacity .3s}
.device:hover .dev-call,.device:focus-visible .dev-call,.device.on .dev-call{opacity:1}
.dev-call circle{fill:none;stroke:var(--gold-2);stroke-width:1.6;stroke-dasharray:3 3}
.dev-call path{stroke:var(--gold-2);stroke-width:1.6}
.dev-call text{fill:var(--gold-2);font-size:8.5px;font-weight:800;letter-spacing:.1em;font-family:var(--f)}
.dev-copy{color:var(--ink-2);font-size:.94rem}
.dev-facts{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px;padding-top:22px;border-top:1px solid var(--line)}
.dev-facts dt{font-size:.56rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);font-weight:700}
.dev-facts dd{font-size:.92rem;margin-top:5px;font-weight:600}
.dev-vs{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;padding-inline:4px}
.dev-vs span{font-size:.58rem;letter-spacing:.22em;text-transform:uppercase;color:var(--ink-3);font-weight:700}
.dev-vs b{font-size:.58rem;letter-spacing:.16em;text-transform:uppercase;color:var(--gold-2);writing-mode:vertical-rl;margin-top:6px;font-weight:800}
.dev-guard{display:flex;align-items:center;gap:14px;margin-top:32px;padding:18px 22px;border:2px solid var(--gold);
  background:var(--gold-wash);border-radius:var(--r-l);color:var(--ink);font-size:.92rem;font-weight:600}
.dev-guard .ico{width:24px;height:24px;flex:none;color:var(--gold-2)}

/* device geometry colours */
.t-shell-u{fill:#D9DDE1}.t-shell-l{fill:#AFB5BC}
.t-grain{stroke:#C4CAD0;stroke-width:.8}
.t-seam{stroke:#8A9098;stroke-width:2}
.t-port{fill:#2A2E33;stroke:#7B828A;stroke-width:1.2}
.t-mark{fill:#7A8189;font-family:var(--f);font-size:9px;font-weight:800;letter-spacing:.11em}
.t-cable{stroke:#C83A32;stroke-width:7;fill:none;stroke-linecap:round}
.t-conn{fill:#F0EBE0;stroke:#C3BDB0;stroke-width:1.2}
.c-body{fill:#2B2F35}.c-body-2{fill:#22262B}.c-deck{fill:#1A1D21}
.c-puck{fill:#3B424A}.c-mast{fill:#1F2226}
.c-damp{fill:#4A5159}.c-bolt{fill:#8A9199}
.c-mark{fill:#A8AFB7;font-family:var(--f);font-size:9px;font-weight:800;letter-spacing:.11em}
.cap-led{fill:#4C8DFF}   /* the only permitted blue: physical status LED */
.dev-shadow{fill:#0B0B0B;opacity:.10}
.ctl-shell{fill:#E9ECEF}.ctl-shell-2{fill:#D3D8DD}
.ctl-screen{fill:#12151A}
.ctl-trace{stroke:var(--gold);stroke-width:2;fill:none}
.ctl-ant{stroke:#9AA1A9;stroke-width:5;stroke-linecap:round;fill:none}

/* ── ecosystem wheel ────────────────────────────────────── */
.eco{display:grid;grid-template-columns:1fr 1.15fr;gap:40px;align-items:center}
.eco-svg{width:100%;height:auto}
.eco-hub{fill:var(--gold-wash)}
.eco-ring{fill:none;stroke:var(--gold);stroke-width:2;stroke-dasharray:6 7;opacity:.75}
.eco-node circle{fill:#fff;stroke:var(--gold);stroke-width:2.4;transition:.25s}
.eco-node:hover circle{fill:var(--gold-wash)}
.eco-node text{font-family:var(--f);text-anchor:middle}
.eco-node .en{fill:var(--ink);font-size:12.5px;font-weight:800;letter-spacing:.06em;text-transform:uppercase}
.eco-node .ed{fill:var(--ink-3);font-size:10.5px;font-weight:500}
.eco-arm{stroke:var(--gold-2);stroke-width:1.8;stroke-dasharray:4 5;fill:none;opacity:.8}
.eco-ico{fill:none;stroke:var(--ink);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.eco-ico-g{stroke:var(--gold-2)}

/* ── flow ───────────────────────────────────────────────── */
.flow{display:grid;grid-template-columns:1fr 320px;gap:24px;align-items:center}
.flow-svg{width:100%;height:auto;background:#fff;border:1.5px solid var(--line);border-radius:var(--r-xl);padding:18px;box-shadow:var(--sh)}
.flow-node circle{fill:#fff;stroke:var(--line-2);stroke-width:2;transition:stroke .3s}
.flow-node text{fill:var(--ink-2);font-size:13px;text-anchor:middle;font-family:var(--f);font-weight:700}
.flow-node text.fs{fill:var(--ink-3);font-size:10.5px;letter-spacing:.06em;font-weight:500}
.flow-node.hot circle{stroke:var(--gold);stroke-width:3}
.flow-pk{fill:var(--gold-2)}
.fi{fill:none;stroke:var(--ink-2);stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.flow-out{background:#fff;border:1.5px solid var(--line);border-radius:var(--r-xl);padding:26px;box-shadow:var(--sh)}
.flow-out h3{font-size:.8rem;margin-bottom:18px;text-transform:uppercase;letter-spacing:.12em;font-weight:800;color:var(--ink-3)}
.flow-out dl>div{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px 0;border-bottom:1px solid var(--line)}
.flow-out dl>div:last-child{border-bottom:0}
.flow-out dt{font-size:.6rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);font-weight:700}
.flow-out dd{font-size:.92rem;font-weight:600}
.flow-out dd span{color:var(--ink-3);font-size:.72rem}

/* ── demo / airspace ────────────────────────────────────── */
.demo{display:grid;grid-template-columns:1fr 340px;gap:22px}
.demo-map{position:relative;background:#fff;border:1.5px solid var(--line);border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh)}
.demo-map svg{width:100%;height:auto}
.map-bg{fill:#FBFAF7}
.grid line{stroke:#E6E6E4;stroke-width:1}
.contour path{fill:none;stroke:#DCDCD8;stroke-width:1.6}
.zone rect,.zone path{fill:rgba(255,193,7,.13);stroke:var(--gold-2);stroke-width:2.4;stroke-dasharray:8 6}
.zone.zone-a rect,.zone.zone-a path{fill:rgba(255,193,7,.07);stroke:rgba(232,163,23,.75)}
.zone text{fill:#8A6410;font-size:11.5px;font-weight:800;letter-spacing:.1em;font-family:var(--f);paint-order:stroke;stroke:#FBFAF7;stroke-width:3.5;stroke-linejoin:round}
.zone-b.hot rect{stroke-width:3.8;fill:rgba(255,193,7,.26);stroke-dasharray:none}
.corridor{stroke:rgba(255,193,7,.16);stroke-width:30;stroke-linecap:round}
.route{stroke:#9B9B96;stroke-width:3;stroke-linecap:round;stroke-dasharray:9 8}
.route-done{stroke:var(--gold);stroke-width:4.5;stroke-linecap:round;filter:drop-shadow(0 1px 2px rgba(232,163,23,.45))}
.craft-halo{fill:rgba(255,193,7,.3)}
.craft-ico circle{fill:var(--ink)}
.craft-ico path{stroke:var(--ink);stroke-width:2.8;stroke-linecap:round}
.craft.warn .craft-halo{fill:rgba(232,163,23,.45)}
.map-tag{fill:var(--ink-2);font-family:var(--fm);font-size:12px;font-weight:500}
.bnd path{stroke:var(--gold-2);stroke-width:1.8;stroke-dasharray:5 4}
.map-legend{position:absolute;left:16px;bottom:14px;display:flex;flex-wrap:wrap;gap:16px;font-size:.66rem;color:var(--ink-3);font-weight:600}
.map-legend span{display:flex;align-items:center;gap:7px}
.lg{width:16px;height:3px;border-radius:2px;background:var(--gold)}
.lg-zone{background:none;border:1.5px dashed var(--gold-2);height:11px;width:13px}
.lg-craft{width:9px;height:9px;border-radius:50%;background:var(--ink)}

.demo-side{background:#fff;border:1.5px solid var(--line);border-radius:var(--r-xl);padding:24px;display:flex;flex-direction:column;box-shadow:var(--sh)}
.demo-status{display:flex;align-items:center;gap:10px;font-size:.84rem;font-weight:800;letter-spacing:.11em;padding-bottom:16px;border-bottom:1px solid var(--line)}
.demo-status.ok b{color:var(--ok)}
.demo-status.warn b{color:var(--gold-2)}
.demo-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;padding:18px 0;border-bottom:1px solid var(--line)}
.demo-grid dt{font-size:.54rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);font-weight:700}
.demo-grid dd{font-family:var(--fm);font-size:1.34rem;margin-top:4px;font-weight:500}
.demo-adv{margin-top:16px;padding:15px;border:2px solid var(--gold);background:var(--gold-wash);border-radius:var(--r)}
.adv-h{display:flex;align-items:center;gap:8px;font-size:.68rem;font-weight:800;letter-spacing:.12em;color:var(--gold-2)}
.demo-adv dl{margin-top:11px;display:grid;gap:7px}
.demo-adv dl>div{display:flex;justify-content:space-between;font-size:.78rem;color:var(--ink-2);font-weight:600}
.demo-adv dd{font-family:var(--fm);color:var(--ink)}
.demo-log{list-style:none;margin-top:16px;flex:1;min-height:130px;max-height:196px;overflow:auto;display:flex;flex-direction:column;gap:9px}
.demo-log li{display:flex;gap:10px;font-size:.78rem;color:var(--ink-2);opacity:0;animation:logIn .4s var(--ease) forwards;font-weight:600}
.demo-log time{font-family:var(--fm);color:var(--ink-3);font-size:.72rem;flex:none;font-weight:400}
@keyframes logIn{to{opacity:1}}
.demo-ctl{display:flex;gap:10px;margin-top:18px}
.demo-ctl .btn{flex:1;padding-inline:14px}

/* ── dashboard ──────────────────────────────────────────── */
.dash{background:#fff;border:1.5px solid var(--line);border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-l)}
.dash-bar{display:flex;align-items:center;gap:7px;padding:14px 20px;border-bottom:1px solid var(--line);background:var(--bg)}
.dash-dot{width:10px;height:10px;border-radius:50%;background:var(--line-2)}
.dash-bar p{margin-left:12px;font-size:.74rem;color:var(--ink-3);font-weight:700;letter-spacing:.06em}
.dash-status{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:18px 20px;border-bottom:1px solid var(--line)}
.dash-status b{color:var(--ok);font-size:1.06rem;letter-spacing:.09em;margin-right:16px;font-weight:800}
.ds-k{font-size:.54rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);font-weight:700}
.ds-v{font-size:.94rem;margin-right:16px;font-weight:600}
.dash-body{display:grid;grid-template-columns:1fr 300px}
.dash-tbl{width:100%;border-collapse:collapse;font-size:.88rem}
.dash-tbl th[scope=col]{text-align:left;font-size:.56rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);font-weight:800;padding:13px 20px;border-bottom:1px solid var(--line)}
.dash-tbl td,.dash-tbl th[scope=row]{padding:15px 20px;border-bottom:1px solid var(--line);color:var(--ink-2);text-align:left;font-weight:500}
.dash-tbl th[scope=row]{color:var(--ink);font-weight:600}
.dash-tbl tbody tr:last-child td,.dash-tbl tbody tr:last-child th{border-bottom:0}
.dash-tbl tbody tr{transition:background .2s}
.dash-tbl tbody tr:hover{background:var(--bg)}
.dash-side{border-left:1px solid var(--line);padding:20px}
.spark{width:100%;height:auto;margin:14px 0 18px}
.spark path{stroke:var(--gold);stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round;fill:none}
.dash-kv>div{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px solid var(--line);font-size:.82rem}
.dash-kv>div:last-child{border-bottom:0}
.dash-kv dt{color:var(--ink-3);font-weight:600}
.dash-kv dd{font-weight:600}
.dash-note{padding:0 20px 18px}

/* ── recorder ───────────────────────────────────────────── */
.rec{display:grid;grid-template-columns:1fr 360px;gap:22px}
.rec-map{background:#fff;border:1.5px solid var(--line);border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh)}
.rec-map svg{width:100%;height:auto}
.rec-ctl{background:#fff;border:1.5px solid var(--line);border-radius:var(--r-xl);padding:24px;display:flex;flex-direction:column;box-shadow:var(--sh)}
.rec-read{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.rec-read .rk{display:block;font-size:.54rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);margin-bottom:5px;font-weight:700}
.rec-read b{font-size:1rem;font-weight:700}
#recScrub{-webkit-appearance:none;appearance:none;width:100%;height:5px;border-radius:3px;background:var(--line);margin:24px 0 4px;cursor:pointer}
#recScrub::-webkit-slider-thumb{-webkit-appearance:none;width:20px;height:20px;border-radius:50%;background:var(--gold);border:3px solid #fff;box-shadow:0 2px 8px rgba(11,11,11,.22);cursor:grab}
#recScrub::-moz-range-thumb{width:20px;height:20px;border-radius:50%;background:var(--gold);border:3px solid #fff;cursor:grab}
#recScrub::-moz-range-progress{height:5px;background:var(--gold);border-radius:3px}
.rec-events{list-style:none;margin-top:16px;display:flex;flex-direction:column;gap:2px;flex:1}
.rec-events button{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:var(--r-s);font-size:.82rem;
  color:var(--ink-3);cursor:pointer;transition:.2s;border:1.5px solid transparent;background:none;width:100%;text-align:left;font-weight:600}
.rec-events button:hover{background:var(--bg);color:var(--ink-2)}
.rec-events button.on{background:var(--gold-wash);border-color:var(--gold);color:var(--ink)}
.rec-events .rt{font-family:var(--fm);font-size:.72rem;flex:none;width:44px;font-weight:400}
.rec-events .rd{width:8px;height:8px;border-radius:50%;background:var(--line-2);flex:none}
.rec-events button.on .rd{background:var(--gold)}
#recMarks circle{fill:#fff;stroke:var(--line-2);stroke-width:2.5}
#recMarks circle.on{fill:var(--gold);stroke:var(--gold-2)}

/* ── two-up ─────────────────────────────────────────────── */
.two{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.two-card{background:#fff;border:1.5px solid var(--line);border-radius:var(--r-xl);padding:32px;box-shadow:var(--sh)}
.two-card h3{font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-3);font-weight:800}
.two-lead{font-size:1.7rem;font-weight:800;letter-spacing:-.025em;margin-top:8px;text-transform:uppercase}
.two-art{width:100%;height:auto;margin:24px 0 8px;background:var(--bg);border:1.5px solid var(--line);border-radius:var(--r);padding:10px}
.two-link{fill:none;stroke:var(--gold-2);stroke-width:2.2;stroke-dasharray:5 6}
.ra-screen{fill:#fff;stroke:var(--line-2);stroke-width:1.5}
.ra-zone{fill:var(--gold-wash);stroke:var(--gold-2);stroke-width:1.6;stroke-dasharray:5 4}
.ra-route{fill:none;stroke:var(--gold);stroke-width:2.6}
.ra-craft circle{fill:var(--ink)}
.ra-t{fill:var(--gold-2);font-size:8px;font-weight:800;letter-spacing:.11em;font-family:var(--f)}
.two-list{list-style:none;margin-top:16px}
.two-list li{padding:16px 0;border-bottom:1px solid var(--line)}
.two-list li:last-child{border-bottom:0}
.two-list span{font-size:.55rem;letter-spacing:.17em;text-transform:uppercase;color:var(--gold-2);font-weight:800}
.two-list b{display:block;margin:5px 0 4px;font-size:1.02rem;font-weight:700}
.two-list p{font-size:.86rem;color:var(--ink-2)}

/* ── incident ───────────────────────────────────────────── */
.inc{background:#fff;border:1.5px solid var(--line);border-radius:var(--r-xl);padding:26px;max-width:880px;box-shadow:var(--sh)}
.inc-head{display:flex;align-items:center;gap:14px;padding-bottom:16px;border-bottom:1px solid var(--line);font-weight:700}
.inc-list{list-style:none;margin-top:6px}
.inc-list button{display:flex;align-items:center;gap:14px;width:100%;text-align:left;padding:15px 12px;background:none;
  border:1.5px solid transparent;border-bottom:1px solid var(--line);cursor:pointer;transition:.2s;border-radius:var(--r-s)}
.inc-list button:hover{background:var(--bg)}
.inc-list li:last-child button{border-bottom:0}
.inc-list .it{font-family:var(--fm);font-size:.76rem;color:var(--ink-3);flex:none;width:52px}
.inc-list .ib{flex:1}
.inc-list .ib b{display:block;font-size:.94rem;font-weight:700}
.inc-list .ib span{font-size:.78rem;color:var(--ink-3)}

/* ── architecture ───────────────────────────────────────── */
.arch{display:grid;grid-template-columns:1fr 320px;gap:24px;align-items:start}
#archSvg{width:100%;height:auto;background:#fff;border:1.5px solid var(--line);border-radius:var(--r-xl);padding:14px;box-shadow:var(--sh)}
.an rect{fill:#fff;stroke:var(--line-2);stroke-width:2;transition:stroke .25s,fill .25s}
.an text{fill:var(--ink-2);font-size:13px;text-anchor:middle;font-family:var(--f);pointer-events:none;font-weight:700}
.an text.sub{fill:var(--ink-3);font-size:10px;letter-spacing:.07em;font-weight:500}
.an{cursor:pointer}
.an:hover rect{stroke:var(--gold)}
.an.on rect{stroke:var(--gold);stroke-width:3;fill:var(--gold-wash)}
.an.on text{fill:var(--ink)}
.an.rel rect{stroke:var(--gold-line)}
.ae{stroke:var(--line-2);stroke-width:2;fill:none;transition:stroke .25s,stroke-width .25s}
.ae.on{stroke:var(--gold);stroke-width:3}
.arch-info{background:#fff;border:1.5px solid var(--line);border-radius:var(--r-xl);padding:26px;position:sticky;top:100px;box-shadow:var(--sh)}
.arch-info h3{font-size:1.06rem;margin-bottom:10px;font-weight:800}
.arch-info p{font-size:.88rem;color:var(--ink-2)}
.arch-rel{list-style:none;margin-top:18px;padding-top:18px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:7px}
.arch-rel li{font-size:.64rem;letter-spacing:.09em;text-transform:uppercase;color:var(--ink);border:1.5px solid var(--gold);
  background:var(--gold-wash);padding:5px 11px;border-radius:999px;font-weight:800}

/* ── trust + protocols ──────────────────────────────────── */
.trust-grid{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.trust-grid li{background:#fff;border:1.5px solid var(--line);border-radius:var(--r-l);padding:28px;transition:.25s;box-shadow:var(--sh)}
.trust-grid li:hover{border-color:var(--gold);box-shadow:var(--sh-l)}
.trust-grid .ico{width:34px;height:34px;color:var(--gold-2);margin-bottom:14px}
.trust-grid h3{margin-bottom:9px;font-weight:800;font-size:1rem}
.trust-grid p{font-size:.87rem;color:var(--ink-2)}
.proto{list-style:none;display:flex;flex-wrap:wrap;gap:12px}
.proto li{font-family:var(--fm);font-size:.85rem;color:var(--ink-2);border:1.5px solid var(--line);background:#fff;
  padding:12px 22px;border-radius:999px;transition:.2s;font-weight:500}
.proto li:hover{border-color:var(--gold);color:var(--ink)}

/* ── cta + footer ───────────────────────────────────────── */
.cta{background:var(--ink);color:#fff;border-bottom:0}
.cta-in{padding-block:clamp(72px,9vw,116px);text-align:center;display:flex;flex-direction:column;align-items:center}
.cta h2{color:#fff}
.cta h2 em{font-style:normal;color:var(--gold)}
.cta-in p{color:#BDBDBD;margin-top:18px;max-width:52ch;font-size:1.04rem}
.cta-in .hero-cta{justify-content:center}
.cta .btn-ghost{color:#fff;border-color:#3A3A3A}
.cta .btn-ghost:hover{background:#fff;color:var(--ink);border-color:#fff}

.foot{background:var(--bg-2);padding-top:66px;border-top:1px solid var(--line)}
.foot-in{display:grid;grid-template-columns:1.2fr 2fr;gap:46px;padding-bottom:48px}
.foot-co{margin-top:20px;font-size:.94rem;color:var(--ink-2);font-weight:700}
.foot-tag{font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-3);margin-top:8px;font-weight:700}
.foot-nav{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.foot-nav h4{font-size:.58rem;letter-spacing:.17em;text-transform:uppercase;color:var(--ink-3);margin-bottom:15px;font-weight:800}
.foot-nav a{display:block;font-size:.88rem;color:var(--ink-2);padding:6px 0;transition:color .2s;font-weight:600}
.foot-nav a:hover{color:var(--gold-2)}
.foot-bot{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;padding-block:24px;border-top:1px solid var(--line);font-size:.78rem;color:var(--ink-3)}

/* ── responsive ─────────────────────────────────────────── */
@media (max-width:1180px){
  .hero-in{grid-template-columns:1fr;gap:20px}
  .hero-art{order:-1}
  .hero-hud{position:static;margin-top:16px;width:100%}
  .steps{grid-template-columns:repeat(3,1fr)}
  .flow,.demo,.rec,.arch,.eco{grid-template-columns:1fr}
  .arch-info{position:static}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
  .dash-body{grid-template-columns:1fr}
  .dash-side{border-left:0;border-top:1px solid var(--line)}
  .frow{grid-template-columns:1fr 1fr}
  .frow li:nth-child(2){border-right:0}
  .frow li:nth-child(-n+2){border-bottom:1px solid var(--line)}
}
@media (max-width:900px){
  .nav-links{display:none}
  .nav-in .btn-sm{display:none}
  .nav-toggle{display:flex}
  .nav-drawer{display:none}
  .nav-drawer.open{display:flex}
  .devices{grid-template-columns:1fr}
  .dev-vs{flex-direction:row;padding-block:4px}
  .dev-vs b{writing-mode:horizontal-tb;margin-top:0}
  .two{grid-template-columns:1fr}
}
@media (max-width:720px){
  .wrap{padding-inline:18px}
  .steps{grid-template-columns:1fr}
  .trust-grid{grid-template-columns:1fr}
  .frow{grid-template-columns:1fr}
  .frow li{border-right:0;border-bottom:1px solid var(--line)}
  .frow li:last-child{border-bottom:0}
  .foot-in{grid-template-columns:1fr;gap:34px}
  .foot-nav{grid-template-columns:1fr 1fr}
  .rec-read,.demo-grid{grid-template-columns:1fr 1fr}
  .hero-marks li{flex-basis:50%;border-right:0;padding-top:12px}
  .dash-status{gap:8px}
  .ds-v{margin-right:10px}
  .dash-tbl th[scope=col]:nth-child(4),.dash-tbl td:nth-child(4){display:none}
  .foot-bot{flex-direction:column;gap:8px}
  .strip-in b{font-size:1rem}
}
@media (max-width:420px){
  .hud-grid{grid-template-columns:1fr 1fr}
  .demo-ctl{flex-direction:column}
  .brand-txt em{display:none}
  .device{padding:22px}
}

/* ── reduced motion ─────────────────────────────────────── */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  .reveal{opacity:1;transform:none}
  .heli,.spin,.tele{animation:none}
  .flow-pk{display:none}
  .step.in .sa-trace{stroke-dasharray:none;stroke-dashoffset:0;animation:none}
}

/* ── dummy vector basemap ───────────────────────────────── */
.bm-land{fill:#F4F2ED}
.bm-w{fill:#E3E8E4;stroke:#D2D9D3;stroke-width:1}
.bm-g{fill:#ECF0E6;stroke:#DDE4D4;stroke-width:1}
.bm-b{fill:#EBE8E1;stroke:#E2DED5;stroke-width:.8}
.bm-mc{stroke:#FFFFFF;stroke-width:4.5;fill:none;stroke-linecap:round}
.bm-m{stroke:#E6E2D9;stroke-width:2.2;fill:none;stroke-linecap:round}
.bm-ac{stroke:#FFFFFF;stroke-width:9;fill:none;stroke-linecap:round}
.bm-a{stroke:#E9E3D4;stroke-width:5.5;fill:none;stroke-linecap:round}
.bm-lb{fill:#9E9887;font-family:var(--f);font-size:10.5px;font-weight:700;letter-spacing:.14em;text-anchor:middle;
  paint-order:stroke;stroke:#F4F2ED;stroke-width:3.5;stroke-linejoin:round}
.bm-t{stroke:#E0DBD1;stroke-width:1;stroke-dasharray:3 5}
.bm-sc-bg{fill:rgba(255,255,255,.82);stroke:#E2DED5;stroke-width:1}
.bm-sc-k{fill:#0B0B0B}
.bm-sc-w{fill:#FFFFFF;stroke:#0B0B0B;stroke-width:1}
.bm-sc-t{fill:#6B6B6B;font-family:var(--fm);font-size:8.5px}
.bm-n{fill:#0B0B0B}
.bm-nt{fill:#6B6B6B;font-family:var(--f);font-size:9px;font-weight:800;text-anchor:middle}

/* ── realistic media layer (replaces vector when supplied) ── */
.media-slot{position:relative}
.media-real{width:100%;height:auto;display:block;border-radius:var(--r-l);object-fit:cover}
.dev-stage.has-real{padding:0;overflow:hidden}
.dev-stage.has-real .media-real{border-radius:0}
.hero-art.has-real .media-real{border-radius:var(--r-l);box-shadow:var(--sh-l)}

/* ── cropped illustration bands ─────────────────────────── */
.band{background:#fff;border-bottom:1px solid var(--line);overflow:hidden}
.band img{width:100%;height:auto;display:block;min-height:120px;object-fit:cover;object-position:center bottom}
.two-photo{width:100%;height:auto;display:block;margin:24px 0 8px;border:1.5px solid var(--line);
  border-radius:var(--r);background:#fff}
.hero-art.has-real .media-real{border-radius:0;box-shadow:none}
.hero-media{border-radius:var(--r-l);overflow:hidden}
.hero-media.has-real{background:#fff}