:root{
  --ink:#0b1220; --muted:#64748b; --soft:#eef7f6;
  --brand:#0ea5a2; --brand-600:#0d9488; --brand-700:#0f766e;
  --accent:#f59e0b; --card:#ffffff; --ring:#cfe9e6;
}
*{box-sizing:border-box}
html,body{height:100%;scroll-behavior:smooth}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Ubuntu,Arial,sans-serif;color:var(--ink);background:#fff;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:1120px;margin:0 auto;padding:0 1rem}
.small{font-size:.9rem}

/* App frame */
.topbar{position:sticky;top:0;z-index:1001;display:flex;align-items:center;justify-content:space-between;gap:.75rem;height:56px;padding:0 1rem;background:linear-gradient(180deg,#f7ffff,#f1fffd);border-bottom:1px solid #e8f4f3}
.topbar .toggle{background:#fff;border:1px solid #e2e8f0;border-radius:.6rem;padding:.45rem .6rem;cursor:pointer}
.scrim{position:fixed;inset:0;background:rgba(2,6,6,.35);backdrop-filter:blur(2px);opacity:0;pointer-events:none;transition:.2s;z-index:1000}
.scrim.show{opacity:1;pointer-events:auto}

.app{display:grid;grid-template-columns:280px 1fr;gap:0;min-height:calc(100vh - 56px)}
.sidebar{background:#0b1f1d;color:#e7faf7;display:flex;flex-direction:column;transform:translateX(0);transition:.25s transform}
.sidebar .brand{display:flex;align-items:center;gap:.6rem;font-weight:800;padding:1rem;border-bottom:1px solid #133b37}
.sidebar .brand .dot{width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg,#22d3ee,#34d399)}
.nav{display:flex;flex-direction:column;padding:.5rem}
.nav a{padding:.65rem 1rem;border-radius:.6rem;color:#d9f5f1}
.nav a:hover{background:#0e2b29}
.nav a.active{background:linear-gradient(90deg,#0f766e,#0ea5a2);color:#fff}
.toggle{color:#0b1f1d}

@media (max-width: 992px){
  .app{grid-template-columns:1fr}
  .sidebar{position:fixed;left:0;top:56px;bottom:0;width:280px;transform:translateX(-100%)}
  .sidebar.open{transform:translateX(0)}
}

/* Main page column with sticky footer */
main.page{display:flex;flex-direction:column;min-height:100%}
.footer{margin-top:auto;background:#0b1f1d;color:#d0f0ec;border-top:1px solid #133b37}
.footer a{color:#9fe8dc}
.footer .wrap{display:grid;grid-template-columns:1fr auto;gap:1rem;align-items:center;padding:1rem}
.footer .small{font-size:.85rem}
@media (max-width: 768px){ .footer .wrap{grid-template-columns:1fr} }

/* Hero (no image) */
.hero{position:relative;color:#06312d;background:
  radial-gradient(800px 400px at -20% -20%, #dcfdfa 0%, transparent 55%),
  radial-gradient(700px 400px at 120% -10%, #dcfbf7 0%, transparent 50%),
  conic-gradient(from 180deg at 80% 10%, #ecfeff, #f0fdfa, #f0fdfa);
  border-bottom:1px solid #e8f4f3}
.hero .wrap{padding:3rem 0 2rem}
.hero h1{font-size:clamp(2rem,3.2vw,3rem);margin:.25rem 0 .6rem}
.hero .lead{color:#0b4943;max-width:60ch}
.kicker{display:inline-block;background:#e6fbf9;border:1px solid #c9f3ee;color:#0e766e;border-radius:999px;padding:.35rem .7rem;font-weight:700}
.chips{display:flex;flex-wrap:wrap;gap:.5rem;margin:1rem 0 0}
.chip{background:#e9fbfa;border:1px solid #d5f5f1;color:#0f766e;padding:.35rem .7rem;border-radius:999px;font-weight:600}
.cta{display:flex;gap:.6rem;margin-top:1rem;flex-wrap:wrap}
.btn{display:inline-block;font-weight:700;border-radius:.8rem;padding:.7rem 1rem;border:1px solid transparent}
.btn-primary{background:linear-gradient(180deg,#0ea5a2,#0d9488);color:#fff;border-color:#0d9488}
.btn-primary:hover{filter:brightness(.98)}
.btn-ghost{border-color:#c9f3ee;color:#0e766e;background:#f4fffe}
.shape{height:12px;background:linear-gradient(180deg,#fff0,#e8fffc,#fff);opacity:.8}

/* Sections */
.section{padding:3.2rem 0}
.section.light{background:#f8fdfc}
.section.split{border-top:1px solid #edf6f5;border-bottom:1px solid #edf6f5}

/* Grids & cards */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:1.2rem}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:1.2rem}
.card{background:var(--card);border-radius:1rem;box-shadow:0 10px 24px rgba(2,16,16,.06);overflow:hidden;border:1px solid #ecf5f4}
.pad{padding:1.1rem}
.card h3{margin:.2rem 0 .5rem}
.card p{color:var(--muted);margin:0}

/* Big impact widgets */
.widgets{display:grid;grid-template-columns:repeat(4,1fr);gap:1.2rem}
.widget{background:linear-gradient(180deg,#ffffff,#f2fffd);border:1px solid #e5f6f4;border-radius:1.2rem;box-shadow:0 20px 34px rgba(1,20,20,.08);padding:1.2rem;text-align:center;transform:translateY(10px);opacity:0;transition:.5s}
.widget.show{transform:none;opacity:1}
.widget .num{font:900 clamp(1.8rem,3vw,2.4rem)/1 var(--font,inherit);color:#0f766e}
.widget .sub{color:#6b7280}
@media (max-width: 992px){ .widgets{grid-template-columns:repeat(2,1fr)} }
@media (max-width: 560px){ .widgets{grid-template-columns:1fr} }

/* Roadmap timeline */
.roadmap{position:relative}
.roadmap .line{position:absolute;left:12px;top:6px;bottom:6px;width:3px;
  background:linear-gradient(#bfeee9,#0ea5a2);
  mask:linear-gradient(#000 0 var(--pct,0%),transparent var(--pct,0%))}
.step{position:relative;padding-left:32px}
.step .dot{position:absolute;left:7px;top:12px;width:12px;height:12px;border-radius:50%;background:#0ea5a2;box-shadow:0 0 0 4px #ecfffd}
.step .card{transition:.2s transform,.2s box-shadow}
.step .card:hover{transform:translateY(-3px);box-shadow:0 16px 30px rgba(3,26,26,.12)}

/* Reveal animations */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .45s ease,transform .45s ease}
.reveal.show{opacity:1;transform:none}
.flyL{transform:translateX(-20px)} .flyR{transform:translateX(20px)}
.flyL.show,.flyR.show{transform:none}
@media (prefers-reduced-motion: reduce){ .reveal,.widget{opacity:1 !important;transform:none !important;transition:none !important} }

/* Responsive tweaks */
@media (max-width: 992px){
  .grid-3{grid-template-columns:1fr}
  .grid-4{grid-template-columns:1fr 1fr}
  .grid-2{grid-template-columns:1fr}
}
@media (max-width: 768px){
  .hero .kicker,.hero .chips{display:none}
  .hero .wrap{padding:2.2rem 0 1.6rem}
}

/* Forms (contact) */
.input, textarea{width:100%;padding:.7rem;border:1px solid var(--ring);border-radius:.7rem}
.note-strong{background:#fff9e8;border:1px solid #fde6b3;color:#7a5304;padding:.45rem .6rem;border-radius:.6rem;font-weight:700}
/* --- FIX: mobile menu clickability & stacking --- */
.topbar{ z-index:1200 }   /* stays on top */
.scrim{  z-index:1000 }   /* under sidebar */
.sidebar{ z-index:1100 }  /* above scrim so links are clickable */
html.nav-open{ overflow:hidden } /* prevent page scroll when menu is open */