/* ===== Proof-of-Work anti-bot gate ===== */
html:not(.pow-ok) body > *:not(#pow-gate):not(script){visibility:hidden}
html.pow-ok #pow-gate{display:none}
.pow-gate{position:fixed;inset:0;z-index:9999;display:flex;align-items:center;justify-content:center;
  background:#05070d;color:#eaf0ff;font-family:'General Sans',system-ui,sans-serif;transition:opacity .5s ease;
  background-image:radial-gradient(700px 500px at 50% 30%,rgba(6,182,212,.14),transparent 60%)}
.pow-gate.is-done{opacity:0;pointer-events:none}
.pow-gate__inner{display:flex;flex-direction:column;align-items:center;gap:14px;text-align:center;padding:24px}
.pow-gate__logo{border-radius:50%;box-shadow:0 0 0 1px rgba(59,130,246,.28),0 0 26px -4px rgba(6,182,212,.55);margin-bottom:2px}
.pow-gate__mark{color:#06b6d4;animation:pow-spin 1s linear infinite}
@keyframes pow-spin{to{transform:rotate(360deg)}}
.pow-gate__title{font-family:'Chillax','General Sans',system-ui,sans-serif;font-weight:600;font-size:1.1rem;letter-spacing:-.01em}
.pow-gate__sub{font-size:.82rem;color:#9aa8c7}
.pow-gate__sub span{color:#06b6d4;font-weight:600}
.pow-gate__bypass{margin-top:8px;font-size:.75rem;color:#6b7896;text-decoration:underline}
.pow-gate__bypass:hover{color:#9aa8c7}
@media (prefers-reduced-motion:reduce){.pow-gate__mark{animation:none}}

/* ===== G ASTRA — cinematic tech aesthetic ===== */
:root{
  --color-bg:#05070d;
  --color-bg-2:#080b16;
  --color-surface:#0d1220;
  --color-surface-2:#111829;
  --color-text:#eaf0ff;
  --color-text-muted:#9aa8c7;
  --color-text-dim:#6b7896;
  --color-border:#1c2740;
  --color-border-glow:rgba(59,130,246,.28);
  --color-primary:#3b82f6;
  --color-cyan:#06b6d4;
  --color-violet:#8b5cf6;
  --glow-cyan:rgba(6,182,212,.55);
  --glow-blue:rgba(59,130,246,.5);
  --radius-sm:10px;--radius:16px;--radius-lg:24px;--radius-xl:32px;--radius-full:999px;
  --space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:24px;--space-6:32px;
  --space-8:48px;--space-10:64px;--space-12:88px;--space-16:120px;
  --text-sm:.9rem;--text-base:1rem;--text-lg:1.15rem;--text-xl:1.4rem;--text-2xl:1.9rem;
  --text-3xl:2.6rem;--text-4xl:3.4rem;--text-hero:clamp(2.6rem,6vw,4.6rem);
  --font-body:'General Sans',system-ui,sans-serif;
  --font-display:'Chillax','General Sans',sans-serif;
  --ease-out:cubic-bezier(.16,1,.3,1);
  --ti:180ms cubic-bezier(.16,1,.3,1);
  --maxw:1200px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-body);background:var(--color-bg);color:var(--color-text);
  line-height:1.6;font-size:var(--text-base);overflow-x:hidden;position:relative;
  background-image:
    radial-gradient(900px 600px at 80% -5%, rgba(59,130,246,.16), transparent 60%),
    radial-gradient(800px 700px at 0% 30%, rgba(139,92,246,.10), transparent 55%),
    radial-gradient(900px 900px at 50% 120%, rgba(6,182,212,.12), transparent 60%);
}
#starfield{position:fixed;inset:0;width:100%;height:100%;z-index:0;pointer-events:none;opacity:.9}
.grid-overlay{
  position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.35;
  background-image:linear-gradient(var(--color-border-glow) 1px,transparent 1px),
    linear-gradient(90deg,var(--color-border-glow) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 40%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 40%,#000 0%,transparent 78%);
}
main,.bar,.foot{position:relative;z-index:1}
.wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--space-5)}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3{font-family:var(--font-display);font-weight:600;line-height:1.08;letter-spacing:-.02em}

/* ===== reveal ===== */
.reveal{opacity:1}
@supports (animation-timeline:view()){
  .reveal{opacity:0;animation:rv both linear;animation-timeline:view();animation-range:entry 0% entry 42%}
}
@keyframes rv{to{opacity:1}}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;animation:none}}

/* ===== eyebrow / section ===== */
.eyebrow{display:inline-block;font-size:.78rem;font-weight:600;letter-spacing:.18em;text-transform:uppercase;
  color:var(--color-cyan);margin-bottom:var(--space-4)}
.section-head{max-width:760px;margin:0 auto var(--space-10);text-align:center}
.section-title{font-size:var(--text-3xl);margin-bottom:var(--space-4)}
.section-lede{color:var(--color-text-muted);font-size:var(--text-lg)}

/* ===== buttons ===== */
.btn{display:inline-flex;align-items:center;gap:var(--space-2);font-weight:600;font-size:var(--text-sm);
  padding:12px 22px;border-radius:var(--radius-full);border:1px solid var(--color-border);
  transition:background var(--ti),color var(--ti),box-shadow var(--ti),transform var(--ti),border-color var(--ti);cursor:pointer}
.btn--sm{padding:9px 16px}
.btn--lg{padding:15px 30px;font-size:var(--text-base)}
.btn--primary{background:linear-gradient(120deg,var(--color-primary),var(--color-cyan));color:#031018;border-color:transparent;
  box-shadow:0 0 0 1px rgba(6,182,212,.3),0 10px 30px -10px var(--glow-cyan)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(6,182,212,.5),0 16px 40px -12px var(--glow-cyan)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{background:rgba(255,255,255,.03);color:var(--color-text);backdrop-filter:blur(6px)}
.btn--ghost:hover{border-color:var(--color-border-glow);transform:translateY(-2px);box-shadow:0 8px 24px -12px var(--glow-blue)}

/* ===== nav ===== */
.bar{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);
  background:color-mix(in oklab,var(--color-bg) 72%,transparent);border-bottom:1px solid var(--color-border)}
.bar__inner{display:flex;align-items:center;justify-content:space-between;height:66px;gap:var(--space-5)}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo__mark{border-radius:50%;box-shadow:0 0 0 1px var(--color-border-glow),0 0 18px -4px var(--glow-cyan)}
.logo__text{font-family:var(--font-display);font-weight:700;font-size:1.25rem;letter-spacing:.01em;white-space:nowrap}
.logo__g{color:#B0B6C1}
.logo__accent{background:linear-gradient(120deg,var(--color-primary),var(--color-cyan));-webkit-background-clip:text;background-clip:text;color:transparent}
.bar__nav{display:flex;gap:var(--space-6);margin-left:auto}
.bar__nav a{font-size:var(--text-sm);color:var(--color-text-muted);font-weight:500;white-space:nowrap;transition:color var(--ti)}
.bar__nav a:hover{color:var(--color-text)}
.bar__actions{display:flex;align-items:center;gap:var(--space-4)}
.lang-toggle{background:none;border:none;color:var(--color-text-dim);font-family:var(--font-body);font-size:var(--text-sm);font-weight:600;cursor:pointer;display:flex;gap:6px}
.lang-toggle .sep{color:var(--color-border)}
.lang-toggle [data-lang].active{color:var(--color-cyan)}
.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:6px}
.hamburger span{width:22px;height:2px;background:var(--color-text);border-radius:2px;transition:transform var(--ti),opacity var(--ti)}
.mobile-nav{display:none;flex-direction:column;padding:var(--space-4) var(--space-5);gap:var(--space-2);border-bottom:1px solid var(--color-border);background:var(--color-bg-2)}
.mobile-nav a{padding:10px 4px;color:var(--color-text-muted);font-weight:500;border-bottom:1px solid var(--color-border)}
.mobile-nav.open{display:flex}

/* ===== hero ===== */
.hero{position:relative;padding:var(--space-16) 0 var(--space-12);text-align:center;overflow:hidden}
.hero__inner{display:flex;flex-direction:column;align-items:center;max-width:900px}
.hero__emblem{position:relative;width:min(560px,86vw);margin-bottom:var(--space-6)}
.hero__emblem img{border-radius:var(--radius-xl);border:1px solid var(--color-border);
  box-shadow:0 30px 80px -30px rgba(0,0,0,.9),0 0 60px -20px var(--glow-blue);animation:float 7s ease-in-out infinite}
.hero__emblem-glow{position:absolute;inset:-14% -8%;z-index:-1;border-radius:50%;
  background:radial-gradient(closest-side,var(--glow-cyan),transparent 70%);filter:blur(40px);opacity:.55;animation:pulse 5s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
@keyframes pulse{0%,100%{opacity:.4}50%{opacity:.7}}
.hero__title{font-size:var(--text-hero);margin-bottom:var(--space-5);
  background:linear-gradient(180deg,#fff 30%,#9fc4ff 120%);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero__lede{color:var(--color-text-muted);font-size:var(--text-lg);max-width:680px;margin-bottom:var(--space-6)}
.hero__actions{display:flex;gap:var(--space-4);flex-wrap:wrap;justify-content:center;margin-bottom:var(--space-8)}
.hero__badges{display:flex;gap:var(--space-3);flex-wrap:wrap;justify-content:center}
.chip{display:inline-flex;align-items:center;gap:8px;font-size:.82rem;color:var(--color-text-muted);font-weight:500;
  padding:8px 14px;border-radius:var(--radius-full);border:1px solid var(--color-border);
  background:color-mix(in oklab,var(--color-surface) 60%,transparent);backdrop-filter:blur(6px)}
.chip svg{color:var(--color-cyan);flex-shrink:0}
.scroll-cue{display:flex;flex-direction:column;align-items:center;gap:4px;margin-top:var(--space-10);
  color:var(--color-text-dim);font-size:.72rem;letter-spacing:.15em;text-transform:uppercase}
.scroll-cue svg{animation:bob 2s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(5px)}}

/* ===== vision ===== */
.vision{padding:var(--space-12) var(--space-5)}
.vision__stats{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-5);margin-top:var(--space-8)}
.stat{padding:var(--space-6);border-radius:var(--radius-lg);border:1px solid var(--color-border);
  background:linear-gradient(160deg,var(--color-surface),var(--color-bg-2));text-align:center;
  transition:border-color var(--ti),transform var(--ti),box-shadow var(--ti)}
.stat:hover{border-color:var(--color-border-glow);transform:translateY(-3px);box-shadow:0 20px 50px -30px var(--glow-blue)}
.stat__num{display:block;font-family:var(--font-display);font-size:var(--text-2xl);font-weight:700;
  background:linear-gradient(120deg,var(--color-primary),var(--color-cyan));-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:var(--space-2)}
.stat__label{color:var(--color-text-muted);font-size:var(--text-sm)}

/* ===== levels ===== */
.levels{padding:var(--space-12) 0}
.level{display:grid;grid-template-columns:1.05fr 1fr;gap:var(--space-10);align-items:center;margin-bottom:var(--space-16)}
.level:last-child{margin-bottom:0}
.level--reverse .level__media{order:2}
.level__media{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--color-border);
  box-shadow:0 30px 70px -30px rgba(0,0,0,.85),0 0 50px -24px var(--glow-blue)}
.level__media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform 700ms var(--ease-out)}
.level__media:hover img{transform:scale(1.04)}
.level__num{position:absolute;top:14px;left:16px;z-index:2;font-family:var(--font-display);font-size:2.4rem;font-weight:700;
  color:rgba(255,255,255,.9);text-shadow:0 0 18px var(--glow-cyan);letter-spacing:-.03em}
.level__scan{position:absolute;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(180deg,transparent 40%,rgba(6,182,212,.14) 50%,transparent 60%);
  background-size:100% 220%;animation:scan 6s linear infinite;mix-blend-mode:screen;opacity:.7}
@keyframes scan{0%{background-position:0 -60%}100%{background-position:0 160%}}
.level__tag{display:inline-block;font-size:.78rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;
  color:var(--color-cyan);padding:5px 12px;border:1px solid var(--color-border-glow);border-radius:var(--radius-full);margin-bottom:var(--space-4)}
.level__title{font-size:var(--text-2xl);margin-bottom:var(--space-4)}
.level__desc{color:var(--color-text-muted);margin-bottom:var(--space-5)}
.level__points{list-style:none;display:flex;flex-direction:column;gap:var(--space-3);margin-bottom:var(--space-5)}
.level__points li{position:relative;padding-left:26px;color:var(--color-text);font-size:var(--text-sm)}
.level__points li::before{content:"";position:absolute;left:0;top:7px;width:12px;height:12px;border-radius:3px;
  background:linear-gradient(120deg,var(--color-primary),var(--color-cyan));box-shadow:0 0 10px -1px var(--glow-cyan)}
.level__status{display:inline-block;font-size:.8rem;color:var(--color-text-dim);font-style:italic}

/* ===== science ===== */
.science{padding:var(--space-12) 0}
.science__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-5);margin-bottom:var(--space-8)}
.sci-card{padding:var(--space-6);border-radius:var(--radius-lg);border:1px solid var(--color-border);
  background:linear-gradient(160deg,var(--color-surface),var(--color-bg-2));
  transition:border-color var(--ti),transform var(--ti),box-shadow var(--ti)}
.sci-card:hover{border-color:var(--color-border-glow);transform:translateY(-3px);box-shadow:0 24px 60px -34px var(--glow-blue)}
.sci-card__icon{width:52px;height:52px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius);
  color:var(--color-cyan);border:1px solid var(--color-border-glow);
  background:color-mix(in oklab,var(--color-primary) 10%,transparent);margin-bottom:var(--space-4)}
.sci-card h3{font-size:var(--text-xl);margin-bottom:var(--space-3)}
.sci-card p{color:var(--color-text-muted);font-size:var(--text-sm)}
.ip-bar{display:flex;align-items:center;gap:var(--space-4);padding:var(--space-5) var(--space-6);
  border:1px solid var(--color-border-glow);border-radius:var(--radius-lg);
  background:color-mix(in oklab,var(--color-surface) 60%,transparent);backdrop-filter:blur(6px)}
.ip-bar__mark{flex-shrink:0;width:44px;height:44px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-full);
  color:var(--color-primary);border:1px solid var(--color-border-glow);background:color-mix(in oklab,var(--color-primary) 10%,transparent)}
.ip-bar__text{font-size:var(--text-sm);color:var(--color-text-muted);max-width:80ch}
.ip-bar__text strong{color:var(--color-text);font-weight:600}

/* ===== invest ===== */
.invest{padding:var(--space-16) 0}
.invest__inner{max-width:820px;margin:0 auto;text-align:center;padding:var(--space-10) var(--space-6);
  border-radius:var(--radius-xl);border:1px solid var(--color-border-glow);position:relative;overflow:hidden;
  background:linear-gradient(160deg,var(--color-surface-2),var(--color-bg-2));
  box-shadow:0 40px 100px -50px var(--glow-blue)}
.invest__inner::before{content:"";position:absolute;inset:-1px;z-index:-1;border-radius:inherit;
  background:radial-gradient(600px 300px at 50% -10%,var(--glow-cyan),transparent 60%);opacity:.4}
.invest__title{font-size:var(--text-3xl);margin-bottom:var(--space-4)}
.invest__lede{color:var(--color-text-muted);font-size:var(--text-lg);margin-bottom:var(--space-8)}
.invest__steps{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-4);margin-bottom:var(--space-8);text-align:left}
.istep{display:flex;flex-direction:column;gap:var(--space-3);padding:var(--space-5);border-radius:var(--radius);
  border:1px solid var(--color-border);background:color-mix(in oklab,var(--color-surface) 50%,transparent)}
.istep__n{width:34px;height:34px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-full);
  font-family:var(--font-display);font-weight:700;color:#031018;background:linear-gradient(120deg,var(--color-primary),var(--color-cyan))}
.istep span:last-child{font-size:var(--text-sm);color:var(--color-text-muted)}
.invest__actions{display:flex;gap:var(--space-4);justify-content:center;flex-wrap:wrap}

/* ===== footer ===== */
.foot{border-top:1px solid var(--color-border);padding:var(--space-10) 0;background:var(--color-bg-2)}
.foot__inner{display:flex;justify-content:space-between;gap:var(--space-8);flex-wrap:wrap}
.foot__brand{display:flex;align-items:center;gap:10px}
.foot__meta{text-align:right;color:var(--color-text-dim);font-size:var(--text-sm);max-width:60ch}
.foot__meta a{color:var(--color-text-muted)}
.foot__meta a:hover{color:var(--color-cyan)}
.foot__legal{margin-top:var(--space-3);font-size:.78rem;line-height:1.5}
.foot__copy{margin-top:var(--space-2)}

/* ===== responsive ===== */
@media (max-width:900px){
  .bar__nav{display:none}
  .hamburger{display:flex}
  .btn--sm{display:none}
  .vision__stats,.science__grid,.invest__steps{grid-template-columns:1fr}
  .level,.level--reverse{grid-template-columns:1fr;gap:var(--space-6)}
  .level--reverse .level__media{order:0}
  .foot__inner{flex-direction:column}
  .foot__meta{text-align:left}
  .section-title,.invest__title{font-size:var(--text-2xl)}
}
@media (max-width:520px){
  .hero{padding:var(--space-10) 0 var(--space-10)}
  .hero__actions .btn{flex:1 1 100%;justify-content:center}
}