:root{--leaf:#0d3326;--leaf2:#0a241c;--ink:#e9fff7;--muted:#b5d2c7;--accent:#6de3a1}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:linear-gradient(180deg,var(--leaf),var(--leaf2));color:var(--ink);font-family:Atkinson Hyperlegible,Inter,system-ui,Arial,sans-serif}
.wrap{width:min(1040px,92%);margin:0 auto}
.top{background:rgba(6,20,16,.6);backdrop-filter:blur(6px);border-bottom:1px solid #0f3b2b;position:sticky;top:0;z-index:10}
.row{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.mark{font-weight:800;letter-spacing:.04em;text-transform:lowercase;color:#bff5d6}
.mark.sm{font-size:18px}
.tabs a{color:var(--ink);text-decoration:none;margin-left:14px;padding:8px 10px;border-radius:10px}
.tabs a[aria-current="page"],.tabs a:hover{background:#0f3b2b}

/* mobile nav */
.nav-toggle{display:none}
.hamburger{display:none;cursor:pointer;margin-left:12px}
.hamburger span{display:block;width:22px;height:2px;background:#e9fff7;margin:5px 0;transition:transform .2s ease,opacity .2s ease}
@media (max-width:900px){
  .tabs{display:none}
  .hamburger{display:block}
  .nav-toggle:checked ~ .hamburger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-toggle:checked ~ .hamburger span:nth-child(2){opacity:0}
  .nav-toggle:checked ~ .hamburger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .nav-toggle:checked ~ .tabs{display:flex;position:absolute;right:4%;left:4%;top:56px;background:#0f3b2b;border:1px solid #184e3a;border-radius:12px;padding:10px;flex-direction:column}
  .tabs a{margin:6px 0}
}

.intro{padding:40px 0 12px;border-bottom:1px solid #0f3b2b}
.intro .muted{color:var(--muted)}
.list{display:flex;gap:10px;flex-wrap:wrap;padding:0;margin:10px 0 0;list-style:none}
.list li{border:1px solid #184e3a;border-radius:999px;padding:6px 10px}

.embed{padding:20px 0}
.board{position:relative;border:1px solid #184e3a;border-radius:14px;overflow:hidden;background:rgba(9,28,22,.6)}
.board::before{content:"";position:absolute;inset:-40% -40% auto auto;width:180px;height:180px;background:radial-gradient(closest-side,rgba(109,227,161,.25),transparent);filter:blur(20px)}
.board iframe{display:block;width:100%;height:min(70vh,720px);border:0}

.info{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:18px 0 30px}
.info article{background:rgba(9,28,22,.6);border:1px solid #184e3a;border-radius:12px;padding:14px}
.info h3{margin:0 0 8px}
.info p{margin:0;color:var(--muted)}

.foot{border-top:1px solid #0f3b2b;background:#081913;padding:22px 0}
.grid{display:grid;grid-template-columns:1.2fr .8fr;gap:16px}
.links{padding:0;margin:0;list-style:none}
.links a{color:var(--ink);text-decoration:none}
.links a:hover{color:var(--accent)}

.gate{position:fixed;inset:0;background:rgba(0,0,0,.5);display:grid;place-items:center;z-index:2147483647}
.gate[hidden]{display:none !important}
.sheet{background:#0c291f;border:1px solid #184e3a;border-radius:14px;padding:18px;width:min(520px,92%)}
.btn{appearance:none;border:1px solid #184e3a;background:#0a231b;color:var(--ink);padding:10px 12px;border-radius:10px;cursor:pointer}
.btn.green{background:#0f3b2b}

@media (max-width:900px){
  .info{grid-template-columns:1fr}
  .grid{grid-template-columns:1fr}
}