/* ============================================================
   OS Ecosystem — Shared Design System
   Theme-able via CSS custom properties. Each site sets
   --accent / --accent-2 etc. on :root via a small theme block.
   Base look inherited from the OSPanel reference site.
   ============================================================ */

:root{
  /* default = OS Board / neutral tech (overridden per site) — LIGHT theme */
  --accent:#4456e6;
  --accent-d:#2c3bc4;
  --accent-l:#6f7eff;
  --accent-2:#0fb5a0;          /* secondary / teal */
  --ink:#10141f;               /* main text on light */
  --ink-soft:#41495c;
  --muted:#6b7388;
  --bg:#f6f8fc;                /* page background (light) */
  --bg-soft:#eef1f8;
  --bg-soft2:#e6eaf4;
  --line:rgba(16,20,31,.10);
  --line-strong:rgba(16,20,31,.16);
  --card:#ffffff;
  --card-2:#fbfcff;
  --grad:linear-gradient(120deg,var(--accent) 0%,var(--accent-2) 100%);
  --grad-soft:linear-gradient(120deg,color-mix(in srgb,var(--accent) 12%,#fff),color-mix(in srgb,var(--accent-2) 10%,#fff));
  --shadow:0 24px 60px -28px rgba(40,52,90,.30);
  --shadow-sm:0 12px 32px -16px rgba(40,52,90,.22);
  --glow:0 0 0 1px color-mix(in srgb,var(--accent) 30%,transparent), 0 18px 50px -22px color-mix(in srgb, var(--accent) 40%, transparent);
  --radius:22px; --radius-sm:14px; --radius-lg:30px;
  --max:1220px;
  --font-body:'Manrope',system-ui,-apple-system,Segoe UI,sans-serif;
  --font-head:'Plus Jakarta Sans','Manrope',sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  line-height:1.6;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
::selection{background:color-mix(in srgb,var(--accent) 60%,transparent);color:#fff}

h1,h2,h3,h4{font-family:var(--font-head);line-height:1.1;letter-spacing:-.02em;color:var(--ink);font-weight:800}
h1{font-size:clamp(2.4rem,6vw,4.6rem)}
h2{font-size:clamp(1.9rem,4vw,3rem)}
h3{font-size:clamp(1.2rem,2vw,1.5rem)}
p{color:var(--ink-soft)}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.eyebrow{display:inline-block;font-family:var(--font-head);font-weight:700;font-size:.8rem;letter-spacing:.18em;
  text-transform:uppercase;color:var(--accent-d);
  padding:.4rem .9rem;border:1px solid var(--line-strong);border-radius:50px;background:var(--card)}

/* ---------- WebGL world canvas ---------- */
#worldCanvas{position:fixed;inset:0;width:100%;height:100%;z-index:-2;opacity:0;transition:opacity 1.4s var(--ease)}
#worldCanvas.ready{opacity:1}
.world-tint{position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:radial-gradient(120% 80% at 50% -10%,transparent 40%,var(--bg) 100%),
             linear-gradient(180deg,transparent 60%,var(--bg) 100%)}
.no-webgl #worldCanvas{display:none}
.no-webgl body{background:
  radial-gradient(80% 60% at 70% -10%,color-mix(in srgb,var(--accent) 22%,transparent),transparent 60%),
  radial-gradient(70% 50% at 0% 20%,color-mix(in srgb,var(--accent-2) 16%,transparent),transparent 60%),
  var(--bg)}

/* ---------- Layout ---------- */
.wrap{max-width:var(--max);margin:0 auto;padding:0 clamp(1.2rem,4vw,2.4rem)}
section{position:relative;padding:clamp(4.5rem,9vw,8rem) 0}
.section-head{max-width:760px;margin:0 auto clamp(2.5rem,5vw,4rem);text-align:center}
.section-head .eyebrow{margin-bottom:1.6rem}
.section-head h2{margin-top:0}
.section-head p{margin-top:1rem;font-size:1.1rem}

/* ---------- Nav ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;transition:.4s var(--ease)}
.nav-inner{max-width:var(--max);margin:0 auto;padding:1rem clamp(1.2rem,4vw,2.4rem);
  display:flex;align-items:center;gap:1.4rem;justify-content:space-between}
.nav.scrolled{backdrop-filter:blur(18px);background:color-mix(in srgb,var(--bg) 72%,transparent);
  border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:.6rem;font-family:var(--font-head);font-weight:800;font-size:1.15rem;color:var(--ink);flex:none;white-space:nowrap}
.brand img{height:34px;width:auto;max-width:none}
.brand small{display:block;font-size:.62rem;letter-spacing:.22em;color:var(--muted);text-transform:uppercase;font-weight:600}
.nav-links{display:flex;gap:1.6rem;align-items:center;flex:1 1 auto;justify-content:center}
.nav-links a{font-size:.94rem;color:var(--ink-soft);font-weight:500;transition:.2s;position:relative}
.nav-links a:hover{color:var(--ink)}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:2px;background:var(--grad);transition:.25s var(--ease)}
.nav-links a:hover::after{width:100%}
.nav-right{display:flex;align-items:center;gap:1rem;flex:none}
.nav-burger{display:none;background:none;border:0;cursor:pointer;width:30px;height:22px;position:relative}
.nav-burger span{position:absolute;left:0;width:100%;height:2px;background:var(--ink);transition:.3s}
.nav-burger span:nth-child(1){top:0}.nav-burger span:nth-child(2){top:10px}.nav-burger span:nth-child(3){top:20px}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:.5rem;font-family:var(--font-head);font-weight:700;
  border-radius:50px;padding:.85rem 1.6rem;cursor:pointer;border:1px solid transparent;
  transition:.25s var(--ease);font-size:.95rem;white-space:nowrap}
.btn-primary{background:var(--grad);color:#ffffff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--glow)}
.btn-ghost{background:var(--card);color:var(--ink);border-color:var(--line-strong)}
.btn-ghost:hover{background:var(--card-2);border-color:var(--accent)}
.btn-lg{padding:1.05rem 2rem;font-size:1.02rem}

/* ---------- Hero ---------- */
.hero{min-height:100vh;display:flex;align-items:center;padding-top:7rem}
.hero-inner{display:grid;gap:3rem;align-items:center}
.hero h1{margin:.6rem 0 1.2rem}
.hero-sub{font-size:1.25rem;max-width:560px;color:var(--ink-soft)}
.hero-actions{display:flex;gap:1rem;flex-wrap:wrap;margin-top:2rem}
.hero-claim{display:flex;gap:1rem;margin-top:2rem;flex-wrap:wrap;color:var(--muted);font-weight:600;font-family:var(--font-head)}
.hero-claim .dot{color:var(--accent)}

/* ---------- Cards / grids ---------- */
.grid{display:grid;gap:1.4rem}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:1.8rem;
  transition:.3s var(--ease);position:relative;overflow:hidden;box-shadow:var(--shadow-sm)}
.card:hover{border-color:var(--line-strong);transform:translateY(-4px);box-shadow:var(--shadow)}
.card .ic{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;margin-bottom:1.1rem;
  background:var(--grad-soft);border:1px solid var(--line-strong);color:var(--accent-d)}
.card .ic svg{width:26px;height:26px}
.card .ic.ic-logo{width:auto;min-width:96px;height:52px;padding:0 16px;background:var(--card);border:1px solid var(--line);place-items:center}
.card .ic.ic-logo img{height:26px;width:auto;max-width:140px;display:block}
.card h3{margin-bottom:.5rem;font-size:1.18rem}
.card p{font-size:.96rem}

/* ---------- Stats ---------- */
.stats{display:flex;flex-wrap:wrap;gap:2.5rem;justify-content:center}
.stat{text-align:center}
.stat b{display:block;font-family:var(--font-head);font-size:clamp(2.2rem,5vw,3.4rem);font-weight:800;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{color:var(--muted);font-size:.92rem;letter-spacing:.05em}

/* ---------- Logo wall ---------- */
.logowall{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.logowall .lw{background:var(--bg-soft);aspect-ratio:16/9;display:grid;place-items:center;padding:1.4rem;
  transition:.3s}
.logowall .lw:hover{background:var(--bg-soft2)}
.logowall img{max-height:46px;max-width:80%;width:auto;object-fit:contain;filter:grayscale(1);opacity:.62;transition:.3s}
.logowall .lw:hover img{filter:none;opacity:1}
.logowall .lw small{position:absolute;bottom:.5rem;font-size:.6rem;color:var(--muted);letter-spacing:.05em}
.logowall .lw{position:relative}

/* ---------- Partner / product chips ---------- */
.chips{display:flex;flex-wrap:wrap;gap:.6rem}
.chip{padding:.5rem 1rem;border-radius:50px;background:var(--card);border:1px solid var(--line-strong);
  font-size:.88rem;font-weight:600;color:var(--ink-soft)}

/* ---------- Ecosystem switcher (cross-brand header dropdown) ---------- */
.eco-switch{position:relative}
.eco-btn{display:flex;align-items:center;gap:.4rem;background:var(--card);border:1px solid var(--line-strong);
  border-radius:50px;padding:.45rem .9rem;cursor:pointer;color:var(--ink);font-size:.85rem;font-weight:700;
  font-family:var(--font-head);transition:.2s}
.eco-btn:hover{border-color:var(--accent);color:var(--accent-d)}
.eco-btn svg{color:var(--accent)}
.eco-pop{position:absolute;right:0;top:calc(100% + 10px);width:300px;background:var(--card);
  border:1px solid var(--line-strong);border-radius:16px;padding:.6rem;box-shadow:var(--shadow);
  opacity:0;visibility:hidden;transform:translateY(-8px);transition:.2s;z-index:120}
.eco-switch.open .eco-pop{opacity:1;visibility:visible;transform:none}
.eco-sec{padding:.3rem 0}
.eco-sec+.eco-sec{border-top:1px solid var(--line);margin-top:.2rem;padding-top:.5rem}
.eco-cap{display:block;font-size:.62rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--muted);padding:.1rem .6rem .35rem}
.eco-item{display:flex;align-items:center;gap:.6rem;padding:.5rem .6rem;border-radius:10px;transition:.15s}
.eco-item:hover{background:var(--bg-soft)}
.eco-item .ei-dot{width:8px;height:8px;border-radius:50%;background:var(--accent);flex:none}
.eco-item .ei-main{flex:1;display:flex;flex-direction:column;font-size:.9rem;font-weight:600;color:var(--ink);line-height:1.15}
.eco-item .ei-main small{font-size:.72rem;font-weight:500;color:var(--muted)}
.eco-item .ei-arrow{color:var(--muted);font-size:1rem;transition:.15s}
.eco-item:hover .ei-arrow{color:var(--accent);transform:translateX(2px)}
.eco-item .ei-here{font-size:.66rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;
  color:var(--accent-d);background:var(--grad-soft);border:1px solid var(--line-strong);border-radius:50px;padding:.12rem .5rem}
.eco-item.here{background:var(--grad-soft)}
.eco-item.here .ei-main{color:var(--accent-d)}
@media (max-width:760px){ .eco-pop{width:min(86vw,300px)} .eco-btn .eco-lbl{display:none} }

/* ---------- Footer ---------- */
.footer{background:var(--bg-soft);border-top:1px solid var(--line);padding:4rem 0 2rem}
.footer-grid{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:2.5rem}
.footer-col h4{color:var(--ink);font-size:.95rem;margin-bottom:1.1rem;font-family:var(--font-head)}
.footer-col a,.footer-col span{display:block;color:var(--muted);font-size:.9rem;margin-bottom:.6rem;transition:.2s}
.footer-col a:hover{color:var(--ink)}
.footer-brand p{font-size:.9rem;margin-top:1rem;max-width:300px}
.footer-bottom{display:flex;flex-wrap:wrap;gap:1rem;justify-content:space-between;align-items:center;
  margin-top:3rem;padding-top:1.6rem;border-top:1px solid var(--line);color:var(--muted);font-size:.82rem}
.footer-affil{font-size:.85rem;color:var(--muted)}
.footer-affil b{color:var(--ink)}

/* ---------- Language switcher ---------- */
.lang{position:relative}
.lang-btn{display:flex;align-items:center;gap:.4rem;background:var(--card);border:1px solid var(--line-strong);
  border-radius:50px;padding:.45rem .8rem;cursor:pointer;color:var(--ink);font-size:.85rem;font-weight:600;font-family:var(--font-head)}
.lang-menu{position:absolute;right:0;top:calc(100% + 8px);background:var(--card);border:1px solid var(--line-strong);
  border-radius:14px;padding:.4rem;min-width:140px;opacity:0;visibility:hidden;transform:translateY(-6px);transition:.2s;box-shadow:var(--shadow)}
.lang.open .lang-menu{opacity:1;visibility:visible;transform:none}
.lang-menu button{display:block;width:100%;text-align:left;background:none;border:0;color:var(--ink-soft);padding:.5rem .7rem;
  border-radius:8px;cursor:pointer;font-size:.88rem;font-family:var(--font-body)}
.lang-menu button:hover,.lang-menu button.active{background:var(--bg-soft);color:var(--ink)}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:.8s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ---------- Responsive ---------- */
@media (max-width:920px){
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  .nav-links{position:fixed;inset:0 0 0 auto;width:min(80vw,320px);flex-direction:column;align-items:flex-start;
    justify-content:center;padding:2rem;background:var(--card);border-left:1px solid var(--line);box-shadow:var(--shadow);
    transform:translateX(100%);transition:.4s var(--ease);gap:1.4rem}
  .nav.open .nav-links{transform:none}
  .nav-burger{display:block;z-index:101}
  .nav.open .nav-burger span:nth-child(1){transform:rotate(45deg) translate(6px,6px)}
  .nav.open .nav-burger span:nth-child(2){opacity:0}
  .nav.open .nav-burger span:nth-child(3){transform:rotate(-45deg) translate(6px,-6px)}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
}