/* ============================================================
   Commander — design system
   Light, modern, positive-futuristic.
   Palette roles: canvas / surface / ink / muted / primary(aurora) / positive
   ============================================================ */
:root{
  --canvas:#F6F7FB;
  --surface:#FFFFFF;
  --ink:#0B1020;
  --muted:#5B6478;
  --line:#E7E9F3;
  --line-2:#EFF1F8;

  --primary:#6366F1;
  --violet:#8B5CF6;
  --cyan:#22D3EE;
  --positive:#10B981;
  --aurora:linear-gradient(120deg,#6366F1 0%,#8B5CF6 48%,#22D3EE 100%);

  --shadow-sm:0 1px 2px rgba(11,16,32,.05), 0 4px 14px rgba(11,16,32,.05);
  --shadow-md:0 8px 30px rgba(11,16,32,.09);
  --shadow-lg:0 30px 70px rgba(79,70,229,.18);

  --r-sm:12px; --r-md:18px; --r-lg:26px; --r-xl:34px;
  --space:8px;
  --maxw:1180px;

  --sans:"Inter",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --display:"Sora",var(--sans);
  --mono:"Space Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  margin:0;
  font-family:var(--sans);
  background:var(--canvas);
  color:var(--ink);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
button{color:inherit;font:inherit}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3{font-family:var(--display);font-weight:700;line-height:1.06;letter-spacing:-.02em;margin:0}
p{margin:0}

.wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:24px}
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:10px 16px;border-radius:0 0 10px 0;z-index:100}
.skip:focus{left:0}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--display);font-weight:600;font-size:15px;
  padding:14px 22px;border-radius:999px;border:1px solid transparent;
  cursor:pointer;transition:transform .18s ease, box-shadow .25s ease, background .2s ease;
  white-space:nowrap;
}
.btn--sm{padding:10px 18px;font-size:14px}
.btn--primary{background:var(--ink);color:#fff;box-shadow:var(--shadow-sm)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(11,16,32,.22)}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn--ghost:hover{background:#fff;border-color:#d7dbea;transform:translateY(-2px)}

.eyebrow,.kicker{
  display:inline-block;font-family:var(--mono);font-size:12.5px;font-weight:700;
  letter-spacing:.16em;text-transform:uppercase;color:var(--primary);
}
.kicker{background:linear-gradient(90deg,var(--primary),var(--violet));-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---------- Nav ---------- */
.nav{position:sticky;top:0;z-index:50;background:rgba(246,247,251,.78);backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:border-color .3s, background .3s}
.nav.is-stuck{border-color:var(--line);background:rgba(246,247,251,.92)}
.nav__row{display:flex;align-items:center;gap:20px;height:70px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--display);font-weight:700;font-size:19px}
.brand__mark{display:grid;place-items:center;filter:drop-shadow(0 6px 14px rgba(99,102,241,.35))}
.nav__links{display:flex;gap:28px;margin-left:auto}
.nav__links a{font-size:15px;color:var(--muted);font-weight:500;transition:color .2s;position:relative}
.nav__links a:hover{color:var(--ink)}
.nav__links a::after{content:"";position:absolute;left:0;bottom:-6px;height:2px;width:0;background:var(--aurora);transition:width .25s}
.nav__links a:hover::after{width:100%}
.nav .btn--primary{margin-left:8px}

/* ---------- Hero ---------- */
.hero{position:relative;padding:76px 0 90px;overflow:hidden}
.hero__grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero__title{font-size:clamp(42px,6.4vw,74px);font-weight:800;margin:18px 0 20px}
.hero__sub{font-size:clamp(17px,1.4vw,20px);color:var(--muted);max-width:44ch}
.hero__cta{display:flex;gap:14px;margin:30px 0 0;flex-wrap:wrap}
.hero__stats{list-style:none;display:flex;gap:34px;margin:38px 0 0;padding:0}
.hero__stats li{display:flex;flex-direction:column}
.hero__stats strong{font-family:var(--display);font-size:30px;font-weight:800;line-height:1;background:var(--aurora);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero__stats span{font-size:13.5px;color:var(--muted);margin-top:6px}

/* aurora background */
.aurora{position:absolute;inset:0;z-index:0;pointer-events:none;filter:blur(56px);opacity:.5}
.aurora span{position:absolute;border-radius:50%;display:block}
.aurora span:nth-child(1){width:520px;height:520px;background:#6366F1;top:-160px;left:-80px;animation:float1 15s ease-in-out infinite}
.aurora span:nth-child(2){width:440px;height:440px;background:#22D3EE;top:-80px;right:-60px;animation:float2 18s ease-in-out infinite}
.aurora span:nth-child(3){width:420px;height:420px;background:#8B5CF6;bottom:-220px;left:34%;animation:float1 20s ease-in-out infinite}
.hero>.wrap{position:relative;z-index:1}
@keyframes float1{0%,100%{transform:translate(0,0)}50%{transform:translate(30px,26px)}}
@keyframes float2{0%,100%{transform:translate(0,0)}50%{transform:translate(-28px,22px)}}

/* ---------- Phone / hero chat ---------- */
.hero__phone{display:grid;place-items:center}
.phone{
  position:relative;width:308px;height:600px;border-radius:44px;
  background:linear-gradient(#12172a,#0B1020);padding:12px;
  box-shadow:var(--shadow-lg), 0 0 0 2px rgba(255,255,255,.04) inset;
  transform:rotate(1.4deg);
}
.phone__notch{position:absolute;top:16px;left:50%;transform:translateX(-50%);width:110px;height:26px;background:#0B1020;border-radius:0 0 16px 16px;z-index:3}
.phone__screen{height:100%;background:#F4F6FD;border-radius:34px;overflow:hidden;display:flex;flex-direction:column}
.chat__head{display:flex;align-items:center;gap:11px;padding:26px 18px 14px;background:#fff;border-bottom:1px solid var(--line-2)}
.chat__avatar{width:38px;height:38px;border-radius:12px;background:var(--aurora);color:#fff;display:grid;place-items:center;font-family:var(--display);font-weight:700}
.chat__name{font-family:var(--display);font-weight:700;font-size:15px}
.chat__status{font-size:12px;color:var(--muted);display:flex;align-items:center;gap:6px}
.chat__status i{width:7px;height:7px;border-radius:50%;background:var(--positive);box-shadow:0 0 0 0 rgba(16,185,129,.5);animation:pulse 2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(16,185,129,.5)}70%{box-shadow:0 0 0 7px rgba(16,185,129,0)}100%{box-shadow:0 0 0 0 rgba(16,185,129,0)}}
.chat__body{flex:1;min-height:0;overflow:hidden;padding:16px 14px;display:flex;flex-direction:column;gap:9px}

/* chat bubbles (shared by hero + demo) */
.bubble{max-width:82%;padding:10px 13px;border-radius:16px;font-size:13.5px;line-height:1.45;animation:rise .4s ease both}
.bubble .who{display:block;font-family:var(--mono);font-size:10.5px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;opacity:.7;margin-bottom:3px}
.bubble--user{align-self:flex-end;background:var(--ink);color:#fff;border-bottom-right-radius:5px}
.bubble--agent{align-self:flex-start;background:#fff;border:1px solid var(--line);border-bottom-left-radius:5px}
.bubble--agent .who{color:var(--primary);opacity:1}
.bubble--sys{align-self:center;background:transparent;color:var(--muted);font-family:var(--mono);font-size:11px;max-width:100%}
.bubble--done{align-self:flex-start;background:rgba(16,185,129,.1);border:1px solid rgba(16,185,129,.28);color:#0a7255;font-weight:500}
.bubble--done .who{color:var(--positive)}
@keyframes rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
.typing{align-self:flex-start;background:#fff;border:1px solid var(--line);padding:12px 15px;border-radius:16px;display:flex;gap:5px}
.typing i{width:6px;height:6px;border-radius:50%;background:#b7bfd4;animation:blink 1.3s infinite}
.typing i:nth-child(2){animation-delay:.2s}.typing i:nth-child(3){animation-delay:.4s}
@keyframes blink{0%,60%,100%{opacity:.3;transform:translateY(0)}30%{opacity:1;transform:translateY(-3px)}}

/* ---------- Marquee ---------- */
.marquee{border-block:1px solid var(--line);background:var(--surface);overflow:hidden;padding:16px 0}
.marquee__track{display:flex;align-items:center;gap:22px;white-space:nowrap;width:max-content;animation:scroll 26s linear infinite;font-family:var(--display);font-weight:600;font-size:18px;color:var(--ink)}
.marquee__track i{color:var(--violet);font-style:normal;font-size:10px}
@keyframes scroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ---------- Sections ---------- */
.section{padding:96px 0}
.section--tint{background:linear-gradient(180deg,#fff,#FBFBFE)}
.section__head{max-width:640px;margin:0 auto 56px;text-align:center}
.section__head h2{font-size:clamp(30px,3.6vw,46px);margin:14px 0 16px}
.section__head p{color:var(--muted);font-size:18px}

/* ---------- Steps ---------- */
.steps{list-style:none;padding:0;margin:0 0 56px;display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.step{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:32px 28px;position:relative;transition:transform .25s, box-shadow .25s}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.step__num{font-family:var(--mono);font-size:14px;font-weight:700;color:transparent;background:var(--aurora);-webkit-background-clip:text;background-clip:text}
.step h3{font-size:22px;margin:12px 0 8px}
.step p{color:var(--muted);font-size:15.5px}

/* orchestration graphic */
.orchestrate{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-xl);padding:30px 20px 22px;box-shadow:var(--shadow-sm)}
.orch{width:100%;height:auto}
.olabel{font-family:var(--display);font-size:12px;font-weight:600;fill:var(--ink)}
.olabel-w{font-family:var(--display);font-size:13px;font-weight:700;fill:#fff}
.flow{stroke-dasharray:7 9;animation:dash 1.4s linear infinite}
@keyframes dash{to{stroke-dashoffset:-32}}
.onode{transform-box:fill-box;transform-origin:center}
.orch__legend{display:flex;align-items:center;justify-content:center;gap:6px;flex-wrap:wrap;margin-top:16px;font-size:13.5px;color:var(--muted);font-family:var(--mono)}
.dot{width:11px;height:11px;border-radius:50%;display:inline-block}
.dot--you{background:var(--primary)}.dot--agent{background:#cfd4e6;border:1px solid #b9c0d8}.dot--ship{background:var(--ink)}

/* ---------- Blocks ---------- */
.blocks{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.block{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:30px 26px;transition:transform .25s, box-shadow .25s, border-color .25s}
.block:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:#dfe3f1}
.block__icon{width:52px;height:52px;border-radius:15px;display:grid;place-items:center;color:#fff;background:var(--aurora);box-shadow:0 10px 22px rgba(99,102,241,.28);margin-bottom:18px}
.block__icon svg{width:26px;height:26px}
.block h3{font-size:21px;margin-bottom:8px}
.block p{color:var(--muted);font-size:15px}

/* ---------- Demo (in action) ---------- */
.demo{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-xl);box-shadow:var(--shadow-md);overflow:hidden}
.demo__tabs{display:flex;flex-wrap:wrap;gap:6px;padding:16px;border-bottom:1px solid var(--line-2);background:#FBFBFE}
.demo__tab{border:1px solid var(--line);background:#fff;border-radius:999px;padding:10px 16px;font-family:var(--display);font-weight:600;font-size:14px;color:var(--muted);cursor:pointer;transition:all .2s}
.demo__tab:hover{color:var(--ink);border-color:#d3d8ea}
.demo__tab.is-active{color:#fff;background:var(--ink);border-color:var(--ink)}
.demo__stage{display:grid;grid-template-columns:1.35fr .9fr;min-height:430px}
.demo__chat{padding:24px;display:flex;flex-direction:column;gap:10px;background:#F4F6FD;border-right:1px solid var(--line-2)}
.demo__side{padding:24px;display:flex;flex-direction:column}
.demo__side-title{font-family:var(--mono);font-size:11.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:14px}
.demo__roster{list-style:none;padding:0;margin:0 0 auto;display:flex;flex-direction:column;gap:10px}
.demo__roster li{display:flex;align-items:center;gap:10px;font-size:14px;opacity:0;transform:translateX(8px);transition:all .35s}
.demo__roster li.on{opacity:1;transform:none}
.demo__roster .rb{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;font-family:var(--display);font-weight:700;font-size:13px;color:#fff;background:var(--aurora);flex:none}
.demo__roster .rrole{color:var(--muted);font-size:12px}
.demo__outcome{margin-top:20px;border-radius:var(--r-md);padding:16px 18px;background:rgba(16,185,129,.09);border:1px solid rgba(16,185,129,.26);font-size:14px;opacity:0;transform:translateY(8px);transition:all .4s}
.demo__outcome.on{opacity:1;transform:none}
.demo__outcome b{font-family:var(--display);color:#0a7255;display:block;margin-bottom:4px}

/* ---------- Fleet ---------- */
.fleet{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.agent{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:24px;display:flex;flex-direction:column;gap:6px;transition:transform .2s, box-shadow .2s}
.agent:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm)}
.agent__badge{width:44px;height:44px;border-radius:13px;background:linear-gradient(135deg,#0B1020,#2b3357);color:#fff;display:grid;place-items:center;font-family:var(--display);font-weight:700;font-size:18px;margin-bottom:6px}
.agent h3{font-size:18px}
.agent p{color:var(--muted);font-size:14px}

/* ---------- Install ---------- */
.install__grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.install__copy h2{font-size:clamp(30px,3.6vw,44px);margin:14px 0 14px}
.install__copy>p{color:var(--muted);font-size:18px;max-width:46ch}
.install__steps{list-style:none;padding:0;margin:28px 0 30px;display:flex;flex-direction:column;gap:16px}
.install__steps li{display:flex;gap:16px;align-items:flex-start}
.install__steps span{flex:none;width:34px;height:34px;border-radius:11px;background:var(--aurora);color:#fff;display:grid;place-items:center;font-family:var(--display);font-weight:700}
.install__steps strong{font-family:var(--display);font-size:16px}
.install__steps p{color:var(--muted);font-size:14.5px}
.install__cta{display:flex;gap:14px;flex-wrap:wrap}

.install__panel{display:grid;place-items:center}
.ticket{width:100%;max-width:440px;background:#0B1020;border-radius:var(--r-lg);padding:24px;box-shadow:var(--shadow-lg);font-family:var(--mono);font-size:13px;color:#c7cde0}
.ticket__bar{display:flex;gap:7px;margin-bottom:16px}
.ticket__bar span{width:11px;height:11px;border-radius:50%;background:#3a4160}
.ticket__bar span:nth-child(1){background:#ff5f57}.ticket__bar span:nth-child(2){background:#febc2e}.ticket__bar span:nth-child(3){background:#28c840}
.ticket__mono{color:#8b93b3;margin-bottom:12px}
.ticket__line{padding:7px 0;border-top:1px solid #1c2238;line-height:1.5}
.ticket__line em{color:#22D3EE;font-style:normal}
.ticket__line.ok em{color:#8B5CF6}
.ticket__done{margin-top:12px;color:#34d399;font-weight:700}

/* ---------- Footer ---------- */
.footer{background:var(--ink);color:#c7cde0;padding:56px 0 30px}
.footer__row{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;padding-bottom:30px;border-bottom:1px solid #1c2238}
.footer__brand{display:flex;align-items:center;gap:12px}
.footer__name{font-family:var(--display);font-weight:700;font-size:18px;color:#fff}
.footer__tag{font-size:13.5px;color:#8b93b3}
.footer__links{display:flex;gap:26px;flex-wrap:wrap}
.footer__links a{color:#c7cde0;font-size:14.5px;transition:color .2s}
.footer__links a:hover{color:#fff}
.footer__base{padding-top:22px;font-size:13px;color:#7b83a3}
.footer__base p{color:#7b83a3}

/* ---------- Reveal on scroll ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease, transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media (max-width:960px){
  .hero__grid,.install__grid{grid-template-columns:1fr;gap:40px}
  .hero__phone{order:-1}
  .steps,.blocks,.fleet{grid-template-columns:1fr 1fr}
  .demo__stage{grid-template-columns:1fr}
  .demo__chat{border-right:none;border-bottom:1px solid var(--line-2)}
  .nav__links{display:none}
}
@media (max-width:620px){
  .wrap{padding-inline:18px}
  .section{padding:66px 0}
  .hero{padding:48px 0 64px}
  .steps,.blocks,.fleet{grid-template-columns:1fr}
  .hero__stats{gap:22px}
  .hero__stats strong{font-size:26px}
  .section__head p{font-size:16px}
  .demo__tab{font-size:13px;padding:9px 13px}
  .footer__row{flex-direction:column;align-items:flex-start}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
}