:root{
  --theme-dark-ui:#0C1822;
  --sky:#F4FEFF;
  --sky-2:#E9FDFE;
  --paper:#ffffff;
  --paper-2:#f9f9fb;
  --paper-3:#f2f3f5;
  --ink:#333333;
  --body:#747474;
  --navy:#004874;
  --primary:#0c497a;
  --link:#198fd9;
  --hero:#4D84A1;
  --eyebrow:#64BBED;
  --rule:#5BB3E5;
  --gold:#F5BB61;
  --cyan:#22D3EE;
  --nle-cyan:#02b7cf;
  --green:#65bd7d;
  --orange:#e55f00;
  --teal:#3f999d;
  --banner:#198fd9;
  --foot:#0c497a;
  --edge:#e5e4e3;
  --display:"Raleway",Arial,Helvetica,sans-serif;
  --sans:"PT Sans",Arial,Helvetica,sans-serif;
  --ui:"Inter",Arial,Helvetica,sans-serif;
  --btn:"Roboto",Arial,Helvetica,sans-serif;
  --wrap:min(1160px, calc(100% - 48px));
  --radius:20px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
}
body{margin:0;font-family:var(--sans);font-size:17px;line-height:1.6;color:var(--body);background:var(--sky);text-rendering:optimizeLegibility}
img{max-width:100%;height:auto;display:block}
a{color:var(--link)}
button{font:inherit}
h1,h2,h3,p,ul,ol,figure,hr{margin:0}
.wrap{width:var(--wrap);margin-inline:auto}
.skip{position:absolute;left:16px;top:16px;z-index:100;background:var(--navy);color:#fff;padding:.55rem .9rem;border-radius:6px;text-decoration:none}
.skip:not(:focus){clip:rect(0 0 0 0);clip-path:inset(50%);width:1px;height:1px;overflow:hidden;white-space:nowrap}
:focus-visible{outline:3px solid var(--link);outline-offset:3px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}

/* Header: NLE light, logo left, Inter navy nav */
.top{position:sticky;top:0;z-index:40;background:rgba(244,254,255,.92);backdrop-filter:blur(12px)}
.top__in{display:flex;align-items:center;gap:1.2rem;min-height:88px}
.lockup{display:flex;align-items:center;text-decoration:none;flex:none}
.lockup .logo{height:30px;width:auto;display:block}
.nav-toggle{display:none;margin-left:auto;background:#fff;border:1px solid var(--navy);border-radius:6px;padding:.4rem .85rem;font-family:var(--ui);font-weight:600;color:var(--navy);cursor:pointer}
.top__nav{display:flex;align-items:center;gap:1.45rem;margin-left:auto}
.top__nav a{text-decoration:none;font-family:var(--ui);font-weight:600;font-size:16px;letter-spacing:.015em;color:var(--navy)}
.top__nav a:hover{color:var(--link)}
.top__cta{display:flex;align-items:center;gap:.85rem;margin-left:1rem;flex:none}
.top__cta .btn,.nav-cta .btn{white-space:nowrap}
.link-login{font-family:var(--ui);font-weight:600;font-size:16px;text-decoration:none;color:var(--navy)}
.link-login:hover{color:var(--link)}
.nav-cta{display:none}

/* Buttons: Roboto 700, modest radius, NLE primary navy */
.btn{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;border-radius:5px;font-family:var(--btn);font-weight:700;font-size:13px;letter-spacing:0;border:1px solid var(--primary);padding:10px 20px;min-height:40px;background:transparent;color:var(--primary);cursor:pointer;line-height:1}
.btn--lg{min-height:46px;padding:12px 24px;font-size:14px}
.btn--primary{background:var(--primary);color:#fff;border-color:var(--primary)}
.btn--primary:hover{background:#0a3d67;border-color:#0a3d67}
.btn--gold{background:var(--gold);color:var(--navy);border-color:var(--gold)}
.btn--gold:hover{filter:brightness(.96)}
.btn--ghost{background:#fff;color:var(--primary)}
.btn--ghost:hover{background:var(--primary);color:#fff}
.btn--light{background:#fff;color:var(--navy);border-color:#fff}
.btn--light:hover{background:var(--sky);color:var(--navy)}
.btn--onblue{background:transparent;color:#fff;border-color:#fff}
.btn--onblue:hover{background:#fff;color:var(--navy)}
.btn:disabled{opacity:.55;cursor:default}

/* Hero: centered NLE rhythm */
.hero{padding:2.4rem 0 3.4rem;background:
  radial-gradient(1200px 480px at 50% -10%, #d9f6ff 0%, transparent 60%),
  linear-gradient(180deg, #ffffff 0%, var(--sky) 28%, var(--sky-2) 100%)}
.hero__intro{text-align:center;max-width:820px;margin:0 auto 2.4rem}
.h1{font-family:var(--display);font-weight:800;font-size:clamp(1.85rem, 3.6vw, 2.35rem);line-height:1.15;letter-spacing:-.02em;color:var(--hero);text-wrap:balance}
.eyebrow{margin-top:.7rem;font-family:var(--ui);font-weight:600;font-size:.95rem;letter-spacing:.14em;text-transform:uppercase;color:var(--eyebrow)}
.eyebrow--navy{color:var(--navy);letter-spacing:.1em;margin:0 0 .7rem}
.hero__rule{border:0;border-top:2px solid var(--rule);width:min(640px, 92%);margin:1rem auto .95rem}
.lede{font-size:1.05rem;color:var(--body);max-width:40rem}
.hero__intro .lede{margin-inline:auto}
.hero__ctas{display:flex;flex-wrap:wrap;gap:.7rem;margin-top:1.25rem;justify-content:center}
.note{margin-top:.85rem;color:var(--body);font-size:.95rem}
.note a{font-weight:700;color:var(--navy);text-decoration:none}
.note a:hover{color:var(--link);text-decoration:underline}

/* Color rooms: NLE 4-col rounded tiles, abstract only */
.rooms{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1rem}
.room{position:relative;display:flex;flex-direction:column;justify-content:flex-end;min-height:200px;border-radius:var(--radius);overflow:hidden;text-decoration:none;color:#fff;box-shadow:0 2px 20px rgba(12,73,122,.12);isolation:isolate}
.room__art{position:absolute;inset:0;z-index:0}
.room__cap{position:relative;z-index:2;padding:1.05rem 2.4rem 1.05rem 1.15rem}
.room__cap b{display:block;font-family:var(--ui);font-weight:700;font-size:1.05rem;letter-spacing:.01em}
.room__cap span{display:block;font-family:var(--sans);font-size:.88rem;opacity:.92;margin-top:.1rem}
.room__go{position:absolute;right:1rem;bottom:1.15rem;z-index:2;width:18px;height:18px;border-right:2.5px solid #fff;border-top:2.5px solid #fff;transform:rotate(45deg)}
.room:hover{filter:brightness(1.06)}
.room:focus-visible{outline:3px solid var(--navy);outline-offset:3px}

.room--orange{background:linear-gradient(180deg, rgba(229,95,0,.45) 0%, #e55f00 100%)}
.room--gold{background:linear-gradient(180deg, rgba(255,200,55,.55) 0%, #e0a512 100%);color:#14324a}
.room--gold .room__go{border-color:#14324a}
.room--teal{background:linear-gradient(180deg, rgba(63,153,157,.45) 0%, #3f999d 100%)}
.room--navy{background:linear-gradient(180deg, rgba(2,90,138,.5) 0%, #004874 100%)}
.room--cyan{background:linear-gradient(180deg, rgba(2,183,207,.45) 0%, #02b7cf 100%)}
.room--green{background:linear-gradient(180deg, rgba(95,188,66,.5) 0%, #5fbc42 100%)}
.room--blue{background:linear-gradient(180deg, #1c3862 0%, #0c497a 100%)}
.room--wine{background:linear-gradient(180deg, rgba(159,28,51,.5) 0%, #9f1c33 100%)}

.blob{position:absolute;width:140px;height:140px;border-radius:50%;right:10%;top:-20%;background:radial-gradient(circle at 30% 30%, #fff 0 8%, rgba(255,255,255,.35) 28%, transparent 70%), radial-gradient(circle at 50% 50%, #ffc837, #e55f00);filter:blur(0);opacity:.85}
.chip{position:absolute;top:14px;left:14px;font-family:var(--ui);font-size:.7rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;background:rgba(255,255,255,.2);border:1px solid rgba(255,255,255,.45);border-radius:999px;padding:.2rem .5rem}
.bars{position:absolute;inset:18px 18px 58px;display:flex;align-items:flex-end;gap:8px}
.bars i{flex:1;height:var(--h,50%);background:rgba(20,50,74,.28);border-radius:4px 4px 0 0}
.dots{position:absolute;inset:16px 16px 56px;background-image:radial-gradient(circle, rgba(255,255,255,.55) 1.6px, transparent 2px);background-size:16px 16px}
.wave{position:absolute;inset:auto 0 42%;height:80px;background:radial-gradient(120% 80% at 0% 100%, transparent 40%, rgba(255,255,255,.22) 41% 60%, transparent 61%), radial-gradient(120% 80% at 100% 0%, transparent 40%, rgba(34,211,238,.35) 41% 60%, transparent 61%)}
.flowline{position:absolute;left:16px;right:16px;top:36px;height:2px;background:linear-gradient(90deg, transparent, #fff, transparent)}
.flowline::before,.flowline::after{content:"";position:absolute;width:10px;height:10px;border-radius:50%;background:#fff;top:-4px}
.flowline::before{left:18%}
.flowline::after{right:18%;background:var(--gold)}
.spark{position:absolute;width:90px;height:90px;right:16px;top:16px;border-radius:50%;background:conic-gradient(from 200deg, transparent, rgba(255,255,255,.7), transparent 40%);opacity:.7}
.gridish{position:absolute;inset:16px 16px 56px;background-image:linear-gradient(rgba(255,255,255,.18) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.18) 1px, transparent 1px);background-size:22px 22px}
.linkish{position:absolute;left:22px;top:28px;width:54px;height:28px;border:3px solid rgba(255,255,255,.7);border-radius:999px}
.linkish::after{content:"";position:absolute;left:28px;top:-6px;width:54px;height:28px;border:3px solid rgba(255,255,255,.45);border-radius:999px}

/* Meet / chat */
.sec{padding:4.2rem 0}
.sec--paper{background:var(--paper)}
.sec--sky{background:linear-gradient(180deg, var(--sky-2), #eef8fb)}
.h2{font-family:var(--display);font-weight:700;font-size:clamp(1.7rem, 3.2vw, 2.2rem);letter-spacing:-.01em;line-height:1.2;color:var(--navy);text-wrap:balance}
.sec__head{max-width:42rem;margin-bottom:1.8rem}
.sec__head .lede{margin-top:.7rem}

.meet{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:2.6rem;align-items:center}
.promises{list-style:none;padding:0;margin:1.6rem 0 0;display:grid;gap:1rem}
.promises li{display:flex;gap:.85rem;align-items:flex-start}
.promises span{flex:none;width:32px;height:32px;border-radius:50%;background:var(--navy);color:#fff;display:grid;place-items:center;font-family:var(--ui);font-weight:700;font-size:.85rem}
.promises b{display:block;font-family:var(--display);font-weight:700;color:var(--ink);font-size:1.05rem}
.promises p{margin-top:.15rem}

.chat{background:#fff;border:1px solid var(--edge);border-radius:var(--radius);padding:1.15rem 1.15rem 1.2rem;box-shadow:0 2px 20px rgba(12,73,122,.12)}
.chat__bar{display:flex;align-items:center;gap:.55rem;font-family:var(--ui);font-weight:600;font-size:.88rem;margin-bottom:.85rem;color:var(--navy)}
.chat__live{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 0 4px rgba(101,189,125,.25)}
.chat__msgs{display:flex;flex-direction:column;gap:.55rem;min-height:13.5rem}
.msg{background:var(--paper-3);border-radius:16px 16px 16px 6px;padding:.7rem .85rem;font-size:.95rem;max-width:38rem;color:var(--ink)}
.msg:not(.is-on){display:none}
@media (prefers-reduced-motion:reduce){.msg{display:block}}
.msg--you{align-self:flex-end;background:var(--navy);color:#fff;border-radius:16px 16px 6px 16px}
[hidden]{display:none!important}
.typing{display:flex;gap:.3rem;padding:.35rem .2rem}
.typing span{width:7px;height:7px;border-radius:50%;background:var(--body);animation:blink 1s infinite}
.typing span:nth-child(2){animation-delay:.15s}
.typing span:nth-child(3){animation-delay:.3s}
@keyframes blink{0%,80%,100%{opacity:.3}40%{opacity:1}}
.chat__acts{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:.9rem}
.chat__status{margin-top:.7rem;font-size:.9rem;color:var(--body)}
.chat__status.is-ok{color:#0d6a40;font-weight:700}
.side-steps{margin-top:1rem;display:grid;gap:.4rem}
.step{display:flex;align-items:center;gap:.55rem;font-size:.88rem;color:var(--body)}
.step i{width:16px;height:16px;border-radius:50%;border:2px solid var(--edge);flex:none;background:#fff}
.step.is-done{color:var(--ink);font-weight:600}
.step.is-done i{background:var(--green);border-color:var(--green)}

/* Tour */
.tour{background:#fff;border:1px solid var(--edge);border-radius:var(--radius);overflow:hidden;box-shadow:0 2px 20px rgba(12,73,122,.08)}
.tabbar{border-bottom:1px solid var(--edge);background:var(--paper-2)}
.tablist{display:flex;overflow-x:auto;scrollbar-width:thin;scroll-padding-inline:1rem;scroll-snap-type:inline proximity}
[role="tab"]{flex:none;scroll-snap-align:start;appearance:none;background:none;border:0;padding:1rem 1.05rem;font-family:var(--ui);font-weight:600;font-size:.9rem;color:var(--body);cursor:pointer;position:relative;white-space:nowrap}
[role="tab"][aria-selected="true"]{color:var(--navy)}
[role="tab"][aria-selected="true"]::after{content:"";position:absolute;inset:auto 12px 0;border-block-end:3px solid var(--banner)}
.panels{display:grid}
.panels > [role="tabpanel"]{grid-area:1/1}
.panel-in{padding:clamp(1rem,2vw,1.5rem)}
.mock{background:var(--paper-2);border:1px solid var(--edge);border-radius:16px;overflow:hidden}
.mock__bar{display:flex;align-items:center;gap:.4rem;padding:.6rem .9rem;background:#fff;border-bottom:1px solid var(--edge);font-family:var(--ui);font-size:.78rem;font-weight:600;color:var(--navy)}
.mock__dot{width:8px;height:8px;border-radius:50%;background:#e4e0d8}
.mock__dot:nth-child(1){background:#e55f00}
.mock__dot:nth-child(2){background:var(--gold)}
.mock__dot:nth-child(3){background:var(--green)}
.mock__body{display:grid;grid-template-columns:1.15fr .85fr;min-height:21rem}
.mock__main,.mock__side{padding:1.05rem 1.1rem}
.mock__side{background:#fff;border-left:1px solid var(--edge)}
.mock__label{font-size:.75rem;font-weight:700;color:var(--body);margin-bottom:.3rem;font-family:var(--ui);letter-spacing:.04em;text-transform:uppercase}
.mock h3{font-family:var(--display);font-weight:700;font-size:1.25rem;color:var(--navy);margin-bottom:.65rem}
.row{display:flex;justify-content:space-between;gap:1rem;padding:.65rem 0;border-bottom:1px solid var(--edge);align-items:baseline;color:var(--ink)}
.row:last-child{border-bottom:0}
.row span{color:var(--body);font-size:.9rem}
.pill{display:inline-block;border-radius:999px;padding:.12rem .5rem;font-size:.72rem;font-weight:700;font-family:var(--ui);background:var(--gold);color:var(--navy)}
.pill--ok{background:var(--green);color:#143214}
.pill--wait{background:#d7f3fa;color:var(--navy)}
.agent{margin-top:1rem;background:var(--navy);color:#fff;border-radius:14px;padding:1rem}
.agent b{color:var(--gold)}
.draft{background:#fff;border:1px solid var(--edge);border-radius:12px;padding:1rem;color:var(--ink)}
.draft em{font-style:normal;background:var(--gold);padding:0 .15em}

/* Alongside + stack */
.along{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
.along article,.layer{background:#fff;border:1px solid var(--edge);border-radius:var(--radius);padding:1.3rem 1.25rem;box-shadow:0 2px 16px rgba(12,73,122,.06)}
.along h3,.layer h3{font-family:var(--display);font-weight:700;font-size:1.25rem;color:var(--navy);margin-bottom:.4rem}
.layers{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
.layer--agent{background:var(--navy);color:#fff;border-color:var(--navy)}
.layer--agent h3{color:#fff}
.layer--agent p{color:rgba(255,255,255,.88)}

/* FAQ */
.faq details{border-bottom:1px solid var(--edge)}
.faq summary{cursor:pointer;font-family:var(--display);font-weight:700;font-size:1.15rem;padding:1rem 0;list-style:none;color:var(--navy)}
.faq summary::-webkit-details-marker{display:none}
.faq .a{padding:0 0 1.1rem;color:var(--body);max-width:44rem}

/* Finale: Family of Companies blue banner */
.finale{padding:4.2rem 0;text-align:center;background:var(--banner);color:#fff;
  background-image:radial-gradient(circle at 20px 20px, rgba(255,255,255,.12) 1.5px, transparent 2px);
  background-size:28px 28px}
.finale .h2{color:#fff;max-width:22ch;margin-inline:auto}
.finale .lede{margin:1rem auto 0;color:rgba(255,255,255,.92)}
.finale .hero__ctas{justify-content:center}

/* Footer */
.foot{padding:2rem 0 2.4rem;background:var(--foot);color:rgba(255,255,255,.86)}
.foot__in{display:flex;flex-wrap:wrap;gap:1.2rem 2rem;justify-content:space-between;align-items:center}
.foot p{max-width:36rem;font-size:.92rem}
.foot .logo{height:24px}
.foot__links{display:flex;gap:1.2rem}
.foot__links a{color:#fff;font-family:var(--ui);font-weight:600;text-decoration:none}
.foot__links a:hover{text-decoration:underline}

@media (max-width:900px){
  :root{--wrap:calc(100% - 32px)}
  .nav-toggle{display:inline-flex}
  .top__in{position:relative;min-height:72px}
  .top__nav{display:none;position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:flex-start;background:var(--sky);padding:1rem 1.2rem 1.2rem;border-bottom:1px solid var(--edge);gap:.75rem}
  .top__nav.is-open{display:flex}
  .top__cta{display:none}
  .nav-cta{display:flex;flex-direction:column;align-items:flex-start;gap:.75rem;margin-top:.35rem}
  .lockup .logo{height:26px}
  .rooms{grid-template-columns:repeat(2,minmax(0,1fr))}
  .meet,.mock__body,.along,.layers{grid-template-columns:1fr}
  .mock__side{border-left:0;border-top:1px solid var(--edge)}
}

/* ===== NLOS network exclusivity section (from Signal, light) ===== */
@property --race { syntax: "<angle>"; inherits: false; initial-value: 0deg; }
@keyframes flow-race { to { --race: 360deg; } }
.nl-net {
  --nn-surface: #FFFFFF; --nn-card: #fff; --nn-text: #333333; --nn-text-2: #747474;
  --nn-line: #E5E4E3; --nn-line-2: #C9D5DB; --nn-gold: #F5BB61; --nn-cyan: #22D3EE; --nn-navy: #004874;
  --nn-ease: cubic-bezier(.22,.61,.36,1);
  background: var(--paper-2); color: var(--nn-text);
  border-top: 1px solid var(--nn-line);
  padding: clamp(72px, 9vw, 112px) 0;
}
.nl-net .sra-intro { max-width: 720px; }
.nl-net .sra-intro h2 { margin: 14px 0 0; max-width: 22ch; color: var(--navy); font-family: var(--display); font-weight: 700;
  font-size: clamp(30px, 3.6vw, 46px); line-height: 1.15; letter-spacing: -.01em; }
.nl-net .sra__lead { margin: clamp(16px, 2vw, 22px) 0 0; font-size: clamp(1rem, 1.15vw, 1.08rem); line-height: 1.6; color: var(--nn-text-2); max-width: 56ch; }
.nl-net .paths { list-style: none; padding: 0; margin: 24px 0 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; max-width: 620px; }
.nl-net .paths li { display: flex; flex-direction: column; gap: 4px; padding: 14px 16px; border: 1px solid var(--nn-line-2); border-left: 3px solid var(--nn-gold); border-radius: 10px;
  position: relative; --race-c: var(--nn-gold); --race-t: var(--nn-gold); }
.nl-net .paths__k { font-size: 14.5px; font-weight: 600; font-family: var(--ui); color: var(--nn-text); }
.nl-net .paths__v { font-size: 14px; color: var(--nn-text-2); }
.nl-net .paths li::before, .nl-net .sra-col::before {
  content: ""; position: absolute; inset: -1px; border-radius: 11px; padding: 2px; pointer-events: none; z-index: 2;
  background:
    conic-gradient(from var(--race), transparent 0deg 210deg, color-mix(in srgb, var(--race-t) 45%, transparent) 285deg, var(--race-c) 348deg, transparent 360deg),
    linear-gradient(color-mix(in srgb, var(--race-c) 16%, transparent), color-mix(in srgb, var(--race-c) 16%, transparent));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor;
          mask: linear-gradient(#000 0 0) content-box exclude, linear-gradient(#000 0 0);
  filter: drop-shadow(0 0 5px color-mix(in srgb, var(--race-c) 55%, transparent));
  opacity: 0; animation: flow-race 2.6s linear infinite paused; transition: opacity .45s var(--nn-ease);
}
.nl-net .paths li:hover::before, .nl-net .paths li:focus-within::before,
.nl-net .sra-col:hover::before, .nl-net .sra-col:focus-within::before { opacity: 1; animation-play-state: running; }
.nl-net .sra-cols { margin-top: clamp(36px, 4.5vw, 56px); display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(16px, 2.2vw, 24px); align-items: stretch; }
.nl-net .sra-col { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 24px; padding: 26px 22px 24px;
  border: 1px solid var(--nn-line); border-radius: 14px; border-top: 3px solid var(--nn-line-2); background: var(--nn-card);
  position: relative; --race-c: var(--nn-cyan); --race-t: var(--nn-cyan); }
.nl-net .sra-col::before { inset: -3px -1px -1px; border-radius: 15px; }
.nl-net .sra-col--sra { border-top-color: #990000; --race-c: #990000; --race-t: #990000; }
.nl-net .sra-col--ds { border-top-color: var(--nn-gold); --race-c: var(--nn-gold); --race-t: var(--nn-gold); }
.nl-net .sra-col--sfp { border-top-color: var(--nn-cyan); --race-c: var(--nn-cyan); --race-t: var(--nn-cyan); }
.nl-net .sra-col__note { margin: 0; width: 100%; text-align: center; font-size: 14px; line-height: 1.55; color: var(--nn-text-2); flex: 1 1 auto; }
.nl-net .sra-col .sra__logo { width: 168px; max-width: 100%; height: 140px; object-fit: contain; object-position: center; margin: 0 auto; flex: none; align-self: center; }
.nl-net .sra__logo--white { display: none; }
.nl-net .sra__logo--color { display: block; }
.nl-net .brand-btn { position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 10px; margin-top: auto; width: 100%; min-height: 62px; padding: 14px 12px;
  border-radius: 6px; font-family: var(--ui); font-size: 14px; font-weight: 600; letter-spacing: -.005em; color: #FFFFFF; text-decoration: none;
  transition: background-color .2s var(--nn-ease), border-color .2s var(--nn-ease), transform .2s var(--nn-ease), box-shadow .2s var(--nn-ease); }
.nl-net .brand-btn__logo { width: 54px; height: auto; flex: none; }
.nl-net .brand-btn--sfp .brand-btn__logo, .nl-net .brand-btn--ds .brand-btn__logo { width: 34px; }
.nl-net .brand-btn__logo--color { display: none; }
.nl-net .brand-btn__logo--white { display: block; }
.nl-net .brand-btn__label { white-space: normal; text-align: center; }
.nl-net .brand-btn__ext { width: 13px; height: 13px; flex: none; opacity: .85; color: #FFFFFF; }
.nl-net .brand-btn__sr { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; }
.nl-net .brand-btn:active { transform: translateY(1px); }
.nl-net .brand-btn--sra { background: #990000; border: 1px solid #990000; box-shadow: 0 0 28px -10px rgba(153,0,0,.55); }
.nl-net .brand-btn--sra:hover { background: #7F0000; border-color: #7F0000; }
.nl-net .brand-btn--ds { background: #004874; border: 1px solid #004874; box-shadow: 0 0 28px -10px rgba(0,72,116,.55); }
.nl-net .brand-btn--ds:hover { background: #00385A; border-color: #00385A; }
.nl-net .brand-btn--sfp { background: #0F5C5C; border: 1px solid #0F5C5C; box-shadow: 0 0 28px -10px rgba(15,92,92,.55); }
.nl-net .brand-btn--sfp:hover { background: #0A4545; border-color: #0A4545; }
.nl-net .brand-btn:focus-visible { outline: 3px solid var(--nn-cyan); outline-offset: 3px; }
@media (max-width: 1020px) { .nl-net .sra-cols { grid-template-columns: 1fr; gap: 16px; } }
@media (max-width: 760px) { .nl-net .paths { grid-template-columns: 1fr; } .nl-net .brand-btn { font-size: 13.5px; } }
@media (prefers-reduced-motion: reduce) {
  .nl-net .paths li::before, .nl-net .sra-col::before { animation: none !important; background: linear-gradient(var(--race-c), var(--race-c)); filter: none; }
  .nl-net .paths li:hover::before, .nl-net .sra-col:hover::before { opacity: .85; }
}

/* ---------- theme switch (Signal model) ---------- */
html{color-scheme:light}
html[data-theme="dark"]{color-scheme:dark}

.lockup--head .logo--onDark{display:none}
html[data-theme="dark"] .lockup--head .logo--onLight{display:none}
html[data-theme="dark"] .lockup--head .logo--onDark{display:block}
html:not(.js) .theme{display:none}
.theme{
  width:36px;height:36px;flex:none;margin-left:.35rem;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--edge, rgba(0,72,116,.25));
  border-radius:999px;background:transparent;color:var(--navy);
  cursor:pointer;padding:0;
}
.theme:hover{border-color:currentColor}
.theme svg{width:16px;height:16px;display:none}
html[data-theme="dark"] .theme{color:#E8F3FA;border-color:rgba(232,243,250,.28)}
html[data-theme="dark"] .theme__sun{display:none}
html[data-theme="dark"] .theme__moon{display:block}
html[data-theme="light"] .theme__sun{display:block}
html[data-theme="light"] .theme__moon{display:none}
@media (max-width:900px){
  .theme{width:44px;height:44px;margin-left:auto;margin-right:.4rem;order:2}
  .nav-toggle{order:3;margin-left:0}
  .lockup{order:1}
}

html[data-theme="dark"]{
  --theme-dark-ui:#0C1822;
  --sky:#0C1822;
  --sky-2:#102230;
  --paper:#102230;
  --paper-2:#0C1822;
  --paper-3:#1A2C3A;
  --ink:#F2F6F8;
  --body:#C5D0D8;
  --hero:#C5DDF0;
  --eyebrow:#8ED0F0;
  --rule:#5BB3E5;
  --edge:rgba(232,243,250,.14);
  --link:#8ED0F0;
}
html[data-theme="dark"] body{background:#0C1822;color:#C5D0D8}
html[data-theme="dark"] .top{background:rgba(12,24,34,.92);border-bottom:1px solid var(--edge)}
html[data-theme="dark"] .top__nav a,
html[data-theme="dark"] .link-login,
html[data-theme="dark"] .note a{color:#E8F3FA}
html[data-theme="dark"] .top__nav a:hover,
html[data-theme="dark"] .link-login:hover,
html[data-theme="dark"] .note a:hover{color:#8ED0F0}
html[data-theme="dark"] .nav-toggle{background:#102230;color:#E8F3FA;border-color:#8ED0F0}
html[data-theme="dark"] .h2,
html[data-theme="dark"] .along h3,
html[data-theme="dark"] .layer h3,
html[data-theme="dark"] .faq summary,
html[data-theme="dark"] .mock h3,
html[data-theme="dark"] .chat__bar,
html[data-theme="dark"] .row,
html[data-theme="dark"] .promises b,
html[data-theme="dark"] .step.is-done{color:#F2F6F8}
html[data-theme="dark"] .hero{background:radial-gradient(1200px 480px at 50% -10%, rgba(25,143,217,.18) 0%, transparent 60%), linear-gradient(180deg, #0C1822 0%, #102230 100%)}
html[data-theme="dark"] .btn--ghost{background:#102230;color:#E8F3FA;border-color:#8ED0F0}
html[data-theme="dark"] .btn--ghost:hover{background:#198fd9;color:#0C1822;border-color:#198fd9}
html[data-theme="dark"] .btn--primary{background:#8ED0F0;color:#0C1822;border-color:#8ED0F0}
html[data-theme="dark"] .btn--primary:hover{background:#C5DDF0;border-color:#C5DDF0;color:#0C1822}
html[data-theme="dark"] .chat,
html[data-theme="dark"] .tour,
html[data-theme="dark"] .along article,
html[data-theme="dark"] .layer,
html[data-theme="dark"] .mock__side,
html[data-theme="dark"] .draft,
html[data-theme="dark"] .mock__bar{background:#152536;border-color:var(--edge);color:#C5D0D8}
html[data-theme="dark"] .msg{background:#1A2C3A;color:#F2F6F8}
html[data-theme="dark"] .tabbar{background:#102230;border-color:var(--edge)}
html[data-theme="dark"] [role="tab"]{color:#C5D0D8}
html[data-theme="dark"] [role="tab"][aria-selected="true"]{color:#E8F3FA}
html[data-theme="dark"] .mock{background:#102230;border-color:var(--edge)}
html[data-theme="dark"] .sec--paper{background:#102230}
html[data-theme="dark"] .sec--sky{background:linear-gradient(180deg, #102230, #0C1822)}
html[data-theme="dark"] .layer--agent{background:#004874;color:#F2F6F8;border-color:#004874}
html[data-theme="dark"] .layer--agent h3{color:#F2F6F8}
html[data-theme="dark"] .faq details,
html[data-theme="dark"] .faq{border-color:var(--edge)}
html[data-theme="dark"] .nl-net{background:#0C1822;color:#F2F6F8;border-color:var(--edge)}
html[data-theme="dark"] .nl-net .sra-intro h2{color:#F2F6F8}
html[data-theme="dark"] .nl-net{--nn-text:#F2F6F8;--nn-text-2:#C5D0D8;--nn-line:rgba(232,243,250,.14);--nn-line-2:rgba(232,243,250,.22);--nn-card:#152536}
html[data-theme="dark"] .nl-net .sra__logo--white{display:block}
html[data-theme="dark"] .nl-net .sra__logo--color{display:none}
html[data-theme="dark"] .nl-net .sra-col--ds,
html[data-theme="dark"] .nl-net .paths li{--race-c:#F5BB61;--race-t:#F5BB61}
html[data-theme="dark"] .nl-net .sra-col--sfp{--race-c:#22D3EE;--race-t:#22D3EE;border-top-color:#22D3EE}
html[data-theme="dark"] .nl-net .sra-col--ds{border-top-color:#F5BB61}
html[data-theme="dark"] @media (max-width:900px){
  .top__nav{background:#0C1822;border-color:var(--edge)}
}
@media (max-width:900px){
  html[data-theme="dark"] .top__nav{background:#0C1822;border-color:var(--edge)}
}

.top__nav a.btn--primary,
a.btn--primary,
.btn--primary{color:#fff}
html[data-theme="dark"] .top__nav a.btn--primary,
html[data-theme="dark"] a.btn--primary,
html[data-theme="dark"] .btn--primary{color:#0C1822}