/* Polar Fulfillment shared styles: tokens, nav, buttons, footer. index.html carries its own copy inline. */
:root{
  --canvas:#0A1628;
  --panel:#111F3A;
  --panel-2:#16264A;
  --line:rgba(157,176,204,.16);
  --line-strong:rgba(157,176,204,.42);
  --accent:#35D0FF;
  --accent-hover:#6ADDFF;
  --accent-muted:rgba(53,208,255,.16);
  --text-secondary:#9DB0CC;
  --text-primary:#EEF4FB;
  --ice:#F3F7FC;
  --ice-panel:#FBFDFF;
  --ice-line:rgba(10,22,40,.10);
  --ice-line-strong:rgba(10,22,40,.34);
  --ink:#0A1628;
  --ink-secondary:#4B5C78;
  --display:"Instrument Sans",system-ui,sans-serif;
  --body:"Inter",system-ui,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,monospace;
  --serif:"Instrument Serif",Georgia,serif;
  --ease:cubic-bezier(.22,.61,.36,1);
  --ease-soft:cubic-bezier(.4,0,.2,1);
  --tshadow:0 1px 2px rgba(5,5,10,.95),0 3px 12px rgba(5,5,10,.78),0 10px 44px rgba(5,5,10,.8);
}
*{box-sizing:border-box}
html{overflow-x:hidden;overflow-x:clip;scroll-behavior:smooth}
body{margin:0;overflow-x:hidden;overflow-x:clip;background:var(--canvas);color:var(--text-primary);font-family:var(--body);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;opacity:0;animation:pagein 1.1s var(--ease-soft) forwards}
@keyframes pagein{to{opacity:1}}
a{color:inherit}
img{display:block;max-width:100%}
h1,h2,h3{font-family:var(--display);font-weight:600;line-height:1.08;letter-spacing:-.022em;margin:0}
p{margin:0}
.skip{position:absolute;left:-999px;top:8px;z-index:100;background:var(--accent);color:var(--ink);padding:10px 16px;border-radius:8px;font-weight:600}
.skip:focus{left:16px}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.mono{font-family:var(--mono);font-weight:500;letter-spacing:.02em}
.kicker{font-family:var(--mono);font-weight:500;font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin-bottom:18px;display:flex;align-items:baseline;gap:10px}
.kicker::before{content:"";width:18px;height:1px;background:var(--accent);align-self:center}
.light .kicker{color:#0A7FA8}
.light .kicker::before{background:#0A7FA8}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;font-family:var(--display);font-weight:600;font-size:16px;letter-spacing:-.005em;padding:14px 22px;border-radius:10px;border:1px solid transparent;text-decoration:none;cursor:pointer;transition:transform .35s var(--ease),background .35s var(--ease),border-color .35s var(--ease),box-shadow .35s var(--ease);text-shadow:none;line-height:1.2}
.btn-primary{background:var(--accent);color:var(--ink);box-shadow:0 0 0 0 rgba(53,208,255,0)}
.btn-primary:hover{background:var(--accent-hover);transform:translateY(-2px);box-shadow:0 12px 34px -10px rgba(53,208,255,.55)}
.btn-ghost{background:rgba(238,244,251,.06);color:var(--text-primary);border-color:var(--line-strong)}
.btn-ghost:hover{background:rgba(238,244,251,.12);transform:translateY(-2px)}
.light .btn-ghost{background:transparent;color:var(--ink);border-color:var(--ice-line-strong)}
.light .btn-ghost:hover{background:rgba(10,22,40,.05)}
.btn svg{width:16px;height:16px;transition:transform .35s var(--ease)}
.btn:hover svg{transform:translateX(3px)}
@media (pointer:coarse){.btn{min-height:44px}}

/* the environment layer */
.env{position:fixed;inset:-20%;z-index:0;pointer-events:none;background:
  radial-gradient(ellipse 40% 50% at 20% 20%,rgba(53,208,255,.10),transparent 70%),
  radial-gradient(ellipse 50% 40% at 80% 80%,rgba(59,130,246,.12),transparent 70%),
  radial-gradient(ellipse 60% 60% at 50% 50%,rgba(16,38,74,.6),transparent 80%);
  animation:envdrift 80s linear infinite;animation-delay:-20s}
@keyframes envdrift{0%{transform:translate3d(0,0,0) rotate(0deg)}50%{transform:translate3d(3%,-2%,0) rotate(1.5deg)}100%{transform:translate3d(0,0,0) rotate(0deg)}}
.env::after{content:"";position:absolute;inset:0;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='.5'/%3E%3C/svg%3E");opacity:.05;mix-blend-mode:overlay}

/* nav */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;transition:background .5s var(--ease),border-color .5s var(--ease),backdrop-filter .5s var(--ease)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:68px}
.nav.solid{background:rgba(10,22,40,.78);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-family:var(--display);font-weight:600;font-size:17px;letter-spacing:-.01em}
.brand svg{width:28px;height:28px}
.nav-links{display:flex;gap:28px;align-items:center;list-style:none;margin:0;padding:0}
.nav-links a{text-decoration:none;font-size:14.5px;font-weight:500;color:var(--text-secondary);transition:color .3s var(--ease)}
.nav-links a:hover{color:var(--text-primary)}
.nav .btn{padding:10px 16px;font-size:14.5px}
.nav-links a.btn-primary{color:var(--ink)}
.nav-links a.btn-primary:hover{color:var(--ink)}
.nav-toggle{display:none;background:none;border:1px solid var(--line-strong);border-radius:8px;color:var(--text-primary);width:44px;height:44px;cursor:pointer}
.nav-toggle svg{width:20px;height:20px}
@media (max-width:860px){
  .nav-links{position:fixed;top:68px;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:rgba(10,22,40,.96);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);padding:8px 24px 16px;transform:translateY(-8px);opacity:0;pointer-events:none;transition:opacity .35s var(--ease),transform .35s var(--ease)}
  .nav-links.open{opacity:1;transform:none;pointer-events:auto}
  .nav-links li{border-bottom:1px solid var(--line)}
  .nav-links li:last-child{border:0;padding-top:12px}
  .nav-links a{display:block;padding:14px 0;font-size:16px}
  .nav-links .btn{display:flex}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
}

/* footer */
footer{position:relative;z-index:1;background:#071020;border-top:1px solid var(--line);padding:56px 0 36px;color:var(--text-secondary);font-size:14px}
footer .top{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;align-items:flex-start}
footer .brand{color:var(--text-primary)}
footer .cols{display:flex;gap:56px;flex-wrap:wrap}
footer .cols ul{list-style:none;padding:0;margin:10px 0 0;display:grid;gap:8px}
footer .cols a{text-decoration:none;color:var(--text-secondary);transition:color .3s var(--ease)}
footer .cols a:hover{color:var(--text-primary)}
footer .cols .t{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--text-primary)}
footer .bottom{margin-top:44px;padding-top:22px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px}
footer .addr{margin-top:12px;max-width:30ch;line-height:1.6}
footer .addr a{text-decoration:none;color:var(--accent)}
footer .social{display:inline-flex;align-items:center;gap:9px;margin-top:16px;text-decoration:none;color:var(--text-secondary);font-size:14px;transition:color .3s var(--ease)}
footer .social:hover{color:var(--accent)}
footer .social svg{width:18px;height:18px;flex:none}

@media (prefers-reduced-motion: reduce){*,*::before,*::after{animation:none !important;transition:none !important}body{opacity:1}.env{animation:none}html{scroll-behavior:auto}}

/* --- touch ergonomics: real tap targets without changing the look --- */
@media (pointer:coarse){
  .nav .brand{min-height:44px}
  .track .more,.card .more{min-height:44px}
  footer .cols a{display:inline-block;padding:11px 0}
  .faq summary{padding-top:20px;padding-bottom:20px}
  footer .brand{min-height:44px}
  footer .addr a{display:inline-block;padding:11px 0}
  footer .social{min-height:44px}
  .article .back{min-height:44px;align-items:center}
}