:root{
  --bg1:#071a33;
  --bg2:#061527;
  --card:#ffffff12;
  --card-2:#ffffff1a;
  --border:#ffffff28;
  --text:#E9F2FF;
  --muted:#B8C6DF;
  --accent:#4DB2FF;
  --accent-2:#7FCAFF;
  --accent-3:#5AC8FA;
  --ok:#63E6BE;
  --warn:#FFD77A;
  --danger:#FF6B6B;
  --ring:#74C0FC;
  --shadow:#000000a0;
}
*{box-sizing:border-box}
html,body{height:100%}
html{scroll-behavior:smooth}
body{
  margin:0; color:var(--text);
  font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,sans-serif;
  background:
    radial-gradient(1200px 600px at 20% 10%, #0f2e57 0%, transparent 40%),
    radial-gradient(800px 400px at 80% 20%, #103a6a 0%, transparent 55%),
    radial-gradient(600px 1600px at 50% 100%, #0b2545 0%, transparent 50%),
    linear-gradient(180deg, var(--bg1), var(--bg2));
  background-attachment:fixed;
  overflow-y:scroll;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
body::-webkit-scrollbar{display:none}

#bgfx{position:fixed;inset:0;z-index:0;pointer-events:none}

.wrap{max-width:1180px;margin-inline:auto;padding:0 24px;position:relative;z-index:1}

.site-header{
  position:sticky; top:0; z-index:10;
  backdrop-filter:saturate(140%) blur(10px);
  background:#061a33e6;
  border-bottom:1px solid var(--border);
}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;min-height:70px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--text);font-weight:900;letter-spacing:.5px}
.brand-logo{width:36px;height:36px;border-radius:18px;filter:drop-shadow(0 0 12px #ffffff33)}
.brand-name{text-transform:uppercase}

.nav{display:flex;align-items:center;gap:12px}
.nav a{color:var(--text);text-decoration:none;margin-left:6px;opacity:.9;position:relative;padding-bottom:2px}
.nav a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;border-radius:999px;background:linear-gradient(90deg,var(--accent-2),var(--accent-3));transition:width .18s ease}
.nav a:hover::after{width:100%}
.nav a.ext::after{margin-left:0}
.icon-btn{width:40px;height:40px;border-radius:999px;border:1px solid var(--border);display:grid;place-items:center;background:var(--card);cursor:pointer;transition:transform .09s ease, border-color .2s ease, box-shadow .2s ease}
.icon-btn:hover{transform:translateY(-2px);border-color:#ffffff3a;box-shadow:0 8px 24px var(--shadow)}
.icon{width:20px;height:20px;filter:drop-shadow(0 1px 10px #00000066) brightness(1.25)}

.hero{display:grid;place-items:center;padding:86px 0 74px}
.hero-inner{text-align:center;animation:fadeUp .35s ease-out both}
.hero-logo{width:min(300px,52vw);filter:drop-shadow(0 8px 30px #ffffff44);margin-bottom:18px;border-radius:32px}
.hero h1{font-size:clamp(30px,5vw,48px);font-weight:900;letter-spacing:.6px;margin:.2em 0}
.tagline{color:var(--muted);margin-top:8px;background:linear-gradient(90deg, #9fd6ff33, transparent);display:inline-block;padding:4px 12px;border-radius:999px}
.cta-row{margin-top:30px;display:flex;gap:18px;justify-content:center;flex-wrap:wrap}

.btn{display:inline-flex;align-items:center;justify-content:center;padding:13px 18px;border-radius:999px;border:1px solid var(--border);text-decoration:none;color:var(--text);background:var(--card);backdrop-filter: blur(10px);transition:transform .06s ease, border-color .2s ease, box-shadow .2s ease, background .2s ease}
.btn:hover{transform:translateY(-2px);border-color:#ffffff33;box-shadow:0 8px 24px var(--shadow);background:#ffffff1a}
.btn:active{transform:translateY(0)}
.btn-primary{background:linear-gradient(180deg,var(--accent),var(--accent-2));color:#04213E;border:0;font-weight:900;box-shadow:0 6px 20px #00000080}
.btn-danger{background:linear-gradient(180deg,#ff8a8a,#ff6b6b);color:#2b0a0a;border:0;font-weight:900}
.btn-ghost{background:transparent;border-color:transparent}
.btn[disabled]{opacity:.6;pointer-events:none}

.page-intro{padding:56px 0 16px}
.page-intro h1{font-size:clamp(28px,4.8vw,40px);margin:0 0 10px}
.page-intro p{color:var(--muted);margin:0}

.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:22px;
  overflow:hidden;
  display:flex;
  flex-direction:column;
  backdrop-filter: blur(12px);
  transition:transform .09s ease, box-shadow .2s ease, border-color .2s ease;
}
.card:hover{transform:translateY(-3px); box-shadow:0 14px 40px var(--shadow);border-color:#ffffff40}
.card-header{padding:16px 18px;border-bottom:1px solid var(--border);background:var(--card-2);display:flex;align-items:center;justify-content:space-between}
.card-body{padding:20px}
.card h2{margin:.2em 0;font-size:21px}
.card p{margin:0;color:var(--muted)}

.grid{display:grid;gap:26px;grid-template-columns:repeat(3,1fr)}
@media (max-width: 980px){.grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width: 640px){.grid{grid-template-columns:1fr}}

.doc-card{background:var(--card);border:1px solid var(--border);border-radius:20px;padding:20px;margin:0 0 18px}
.doc-card h2{margin-top:0}

.two-col{display:grid;grid-template-columns:1.2fr 1fr;gap:26px;align-items:center}
@media (max-width: 860px){.two-col{grid-template-columns:1fr;gap:18px}}

.alert{border:1px solid var(--border);background:var(--card);border-radius:18px;padding:14px 16px;margin:14px 0}
.alert-warning{border-color:#ffd77a40;background:#ffd77a14;color:#ffd77a}
.alert-danger{border-color:#ff7a7a40;background:#ff7a7a14;color:#ff7a7a}
.note-danger{color:var(--danger);font-weight:700;margin-top:10px}

.site-footer{border-top:1px solid var(--border);padding:26px 0;margin-top:70px;background:#061a33e6;backdrop-filter: blur(6px)}
.site-footer .wrap{display:flex;flex-direction:column;gap:12px;align-items:center;text-align:center}
.site-footer .links{display:flex;gap:18px;flex-wrap:wrap}
.site-footer a{color:var(--muted);text-decoration:none}
.site-footer a:hover{color:var(--text)}

.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* Forms */
.centered{display:grid;place-items:center;min-height:60vh}
.form{display:grid;gap:16px;max-width:560px;width:100%}
.input, select, textarea{
  width:100%;padding:13px 14px;border-radius:999px;
  border:1px solid var(--border);background:var(--card);
  color:var(--text);outline:none;transition:box-shadow .15s ease,border-color .2s ease, background .2s ease;
  appearance:none;
}
textarea{border-radius:18px;min-height:120px;resize:vertical}
.input:focus, select:focus, textarea:focus{box-shadow:0 0 0 4px #74C0FC22;border-color:var(--ring);background:#ffffff14}
.select{position:relative;display:grid}
.select:after{content:"";position:absolute;right:12px;top:50%;width:10px;height:10px;transform:translateY(-50%);border-right:2px solid #cbe3ff;border-bottom:2px solid #cbe3ff;rotate:45deg;pointer-events:none}
.help{color:var(--muted);font-size:.95rem}
.badge{display:inline-flex;align-items:center;gap:8px;padding:6px 10px;border:1px solid var(--border);border-radius:999px;background:var(--card);font-size:.9rem;color:var(--muted)}
.notice{padding:10px 12px;border:1px dashed var(--border);border-radius:16px;background:#ffffff0a;color:var(--muted)}

/* Sidebar layout */
.layout{display:grid;grid-template-columns:310px 1fr;gap:26px}
.sidebar{position:sticky; top:88px; height:fit-content; display:grid; gap:12px}
.group{background:var(--card);border:1px solid var(--border);border-radius:20px;overflow:hidden}
.group .title{padding:14px 16px;border-bottom:1px solid var(--border);font-weight:900;letter-spacing:.5px;background:var(--card-2)}
.menu{display:grid}
.menu a{display:flex;align-items:center;gap:12px;padding:14px 16px;color:var(--text);text-decoration:none;border-bottom:1px solid var(--border);transition:background .15s ease, transform .06s ease}
.menu a:last-child{border-bottom:0}
.menu a:hover,.menu a.active{background:#ffffff10;transform:translateX(1px)}
.menu img{width:19px;height:19px;border-radius:999px}

.content{display:grid;gap:18px}
.section{display:none; animation: fadeUp .18s ease-out both}
.section.active{display:block}

.table{width:100%;border-collapse:collapse}
.table th,.table td{border-bottom:1px solid var(--border);padding:12px 8px;text-align:left;color:var(--muted)}
.table th{color:var(--text);font-weight:800}
.t-right{text-align:right}

.kv{display:grid;grid-template-columns:200px 1fr;gap:12px;align-items:center;margin:10px 0}
.kv .key{color:var(--muted)}
.kv .val{font-weight:800}

.keytag{font-family:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;background:#00000055;padding:5px 9px;border-radius:12px}

.tabs{display:flex;gap:10px;margin-bottom:10px}
.tab-btn{padding:8px 12px;border-radius:999px;border:1px solid var(--border);background:var(--card);cursor:pointer}
.tab-btn.active{background:linear-gradient(180deg,var(--accent),var(--accent-2));color:#04213E;border:0;font-weight:800}

/* Modal */
.modal{position:fixed;inset:0;z-index:40;display:none;align-items:center;justify-content:center;background:#04122280;backdrop-filter: blur(8px) saturate(140%)}
.modal.open{display:flex}
.modal-card{width:min(520px,92vw);border-radius:24px;background:var(--card);border:1px solid var(--border);box-shadow:0 20px 60px var(--shadow);overflow:hidden;animation:fadeUp .2s ease-out both}
.modal-head{padding:16px 18px;background:var(--card-2);border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}
.modal-body{padding:18px;display:grid;gap:14px}

/* Products */
.product-card{box-shadow:0 0 0 1px #66bfff40, 0 14px 36px rgba(0,0,0,.6);border-radius:24px}
.card-img{width:100%;height:auto;display:block;border-radius:24px 24px 0 0;border-bottom:1px solid var(--border)}

/* Disclosure */
.disclosure{border:1px solid var(--border);border-radius:20px;overflow:hidden;background:var(--card)}
.disclosure summary{cursor:pointer;list-style:none;padding:14px 16px}
.disclosure[open] summary{background:#ffffff10}
.disclosure .disc-body{padding:8px 16px 16px;font-size:.95rem;color:var(--muted)}

/* Animations */
@keyframes fadeUp {from{opacity:0; transform:translateY(8px)} to{opacity:1; transform:none}}