:root{--red:#FF1744;--blue:#00D4FF;--redg:rgba(255,23,68,0.08);--blueg:rgba(0,212,255,0.08);--bg:#09090b;--s1:#0d0d10;--s2:#111115;--card:rgba(255,255,255,0.025);--ch:rgba(255,255,255,0.05);--bd:rgba(255,255,255,0.06);--bdl:rgba(255,255,255,0.12);--txt:#fafafa;--muted:#888;--dim:#555;--r:12px}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg);color:var(--txt);-webkit-font-smoothing:antialiased;overflow-x:hidden;line-height:1.6}
::selection{background:var(--red);color:#fff}
a{color:var(--blue);text-decoration:none;transition:color .2s}
a:hover{text-decoration:underline;color:#33ddff}

nav{position:fixed;top:.75rem;width:calc(100% - 2rem);max-width:1200px;left:50%;transform:translateX(-50%);z-index:1000;display:flex;align-items:center;justify-content:space-between;padding:.6rem 1.5rem;background:rgba(9,9,11,0.75);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);border:1px solid var(--bd);border-radius:16px;transition:background .3s,border-color .3s;box-shadow:0 4px 30px rgba(0,0,0,.2)}
nav:hover{border-color:var(--bdl)}
nav .lg{font-weight:800;font-size:1.05rem;letter-spacing:-.04em;background:linear-gradient(135deg,var(--red),var(--blue));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
nav .nl{display:flex;gap:2rem;align-items:center}

nav .nl a{color:var(--muted);text-decoration:none;font-size:.82rem;transition:color .2s;position:relative;padding:.2rem 0}
nav .nl a::after{content:"";position:absolute;bottom:-2px;left:0;width:0;height:1.5px;background:var(--blue);transition:width .25s;border-radius:2px}
nav .nl a:hover{color:var(--txt);text-decoration:none}
nav .nl a:hover::after{width:100%}
nav .nl a[aria-current="page"]{color:var(--txt)}
nav .nl a[aria-current="page"]::after{width:100%}
nav .nb{padding:.45rem 1.3rem;background:linear-gradient(135deg,var(--red),var(--blue));color:#fff;border:none;border-radius:9999px;font-size:.78rem;font-weight:600;text-decoration:none;transition:opacity .25s,transform .25s,box-shadow .25s}
nav .nb:hover{opacity:.95;transform:translateY(-1px);box-shadow:0 6px 24px rgba(255,23,68,.25);text-decoration:none}
nav .nb.mobile-show{display:none}
.nav-toggle{display:none;flex-direction:column;gap:4px;cursor:pointer;background:none;border:none;padding:4px}
.nav-toggle span{width:20px;height:2px;background:var(--txt);border-radius:2px;transition:all .25s}
.nav-toggle.open span:nth-child(1){transform:rotate(45deg) translate(4px,4px)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:rotate(-45deg) translate(4px,-4px)}

footer{text-align:center;padding:2.5rem 1.5rem;color:var(--dim);font-size:.75rem;border-top:1px solid var(--bd);margin-top:5rem;letter-spacing:.02em}

.hero{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:8rem 1.5rem 4rem;position:relative;z-index:1}
.hero-bg{position:absolute;top:-30%;left:-20%;width:140%;height:140%;background:radial-gradient(ellipse at 50% 40%,rgba(255,23,68,0.04) 0%,transparent 50%),radial-gradient(ellipse at 50% 60%,rgba(0,212,255,0.035) 0%,transparent 50%);pointer-events:none;z-index:-1}
.hbadge{display:inline-flex;align-items:center;gap:.4rem;padding:.35rem 1.1rem;border:1px solid rgba(255,23,68,.12);border-radius:9999px;font-size:.65rem;font-weight:500;color:var(--red);background:rgba(255,23,68,.04);margin-bottom:2rem;letter-spacing:.04em;text-transform:uppercase;transition:border-color .2s}
.hbadge:hover{border-color:rgba(255,23,68,.25)}
.hero h1{font-size:clamp(2rem,12vw,5.2rem);font-weight:800;letter-spacing:-.065em;line-height:1.02;margin-bottom:1.2rem}
.hero h1 .g{background:linear-gradient(135deg,var(--red),var(--blue));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.hero p{font-size:1.05rem;color:var(--muted);max-width:480px;line-height:1.75;margin-bottom:2.4rem}
.hbtns{display:flex;gap:.8rem;flex-wrap:wrap;justify-content:center}
.hbtns .bp{padding:.85rem 2.5rem;background:linear-gradient(135deg,var(--red),var(--blue));color:#fff;border-radius:9999px;font-size:.85rem;font-weight:600;text-decoration:none;transition:all .25s}
.hbtns .bp:hover{opacity:.92;transform:translateY(-2px);box-shadow:0 8px 32px rgba(255,23,68,.25);text-decoration:none}
.hbtns .bs{padding:.85rem 2.5rem;background:transparent;color:var(--blue);border:1px solid rgba(0,212,255,.15);border-radius:9999px;font-size:.85rem;text-decoration:none;transition:all .25s;font-family:"SF Mono","JetBrains Mono",Menlo,monospace;font-size:.8rem}
.hbtns .bs:hover{border-color:var(--blue);background:rgba(0,212,255,.06);transform:translateY(-2px);text-decoration:none;box-shadow:0 4px 20px rgba(0,212,255,.1)}

@media(max-width:768px){
  nav{padding:.5rem 1rem;top:.5rem;width:calc(100% - 1rem)}
  nav .nl{position:fixed;top:3.5rem;left:.5rem;right:.5rem;flex-direction:column;background:rgba(9,9,11,.92);backdrop-filter:blur(24px);border:1px solid var(--bd);border-radius:12px;padding:.8rem;gap:.3rem;display:none}
  nav .nl.open{display:flex}
  nav .nl a{padding:.6rem .8rem;font-size:.9rem;border-radius:8px}
  nav .nl a::after{display:none}
  nav .nl a:hover{background:var(--ch)}
  nav .nb{display:none}
  nav .nb.mobile-show{display:inline-block;text-align:center;margin-top:.3rem;padding:.6rem}
  .nav-toggle{display:flex}
  .hero{padding:6rem 1.2rem 3rem;min-height:90vh}
  .hero h1{font-size:clamp(1.8rem,10vw,2.8rem)}
  .hero p{font-size:.92rem;max-width:100%}
  .hbtns{flex-direction:column;align-items:center;width:100%}
  .hbtns .bp,.hbtns .bs{width:100%;max-width:280px;text-align:center;padding:.75rem 1.5rem;font-size:.82rem}
  .hbadge{font-size:.6rem;padding:.25rem .9rem}
  footer{padding:1.5rem 1rem;font-size:.7rem}
}

@media(max-width:480px){
  body{font-size:15px}
  nav .lg{font-size:.95rem}
  nav .nl{top:3.2rem}
  .hero h1{letter-spacing:-.04em}
}
/* ===== Light theme + navbar controls (flags + dark/light) ===== */
html[data-theme="light"]{--bg:#ffffff;--s1:#f4f5f7;--s2:#ffffff;--card:rgba(0,0,0,.025);--ch:rgba(0,0,0,.05);--bd:rgba(0,0,0,.08);--bdl:rgba(0,0,0,.16);--txt:#0d0d10;--muted:#555;--dim:#999}
html[data-theme="light"] nav{background:rgba(255,255,255,.82)}
html[data-theme="light"] nav .nl{background:rgba(255,255,255,.95)}
html[data-theme="light"] ::selection{background:var(--red);color:#fff}
.nav-ctrls{display:flex;align-items:center;gap:.45rem;margin-left:.35rem}
.mux-theme{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:10px;border:1px solid var(--bd);background:var(--card);color:var(--muted);cursor:pointer;transition:color .2s,border-color .2s,background .2s}
.mux-theme:hover{color:var(--blue);border-color:var(--bdl);background:var(--ch)}
.mux-theme svg{width:17px;height:17px;transition:transform .35s ease}
.mux-theme:hover svg{transform:rotate(35deg)}
.mux-lang{position:relative}
.mux-lang-btn{display:inline-flex;align-items:center;gap:.45rem;height:36px;padding:0 .6rem;border-radius:10px;border:1px solid var(--bd);background:var(--card);color:var(--txt);cursor:pointer;transition:border-color .2s,background .2s}
.mux-lang-btn:hover{border-color:var(--bdl);background:var(--ch)}
.mux-lang-btn .fi{width:21px;height:15px;border-radius:3px;box-shadow:0 0 0 1px rgba(0,0,0,.18)}
.mux-lang-btn .chev{width:13px;height:13px;color:var(--muted);transition:transform .22s}
.mux-lang.open .mux-lang-btn .chev{transform:rotate(180deg)}
.mux-lang.open .mux-lang-btn{border-color:var(--bdl)}
.mux-lang-menu{position:absolute;top:calc(100% + 10px);right:0;min-width:188px;background:var(--s2);border:1px solid var(--bdl);border-radius:14px;padding:.4rem;display:flex;flex-direction:column;gap:.12rem;box-shadow:0 18px 50px rgba(0,0,0,.5);opacity:0;visibility:hidden;transform:translateY(-6px) scale(.98);transform-origin:top right;transition:opacity .18s ease,transform .18s ease,visibility .18s;z-index:1200}
.mux-lang.open .mux-lang-menu{opacity:1;visibility:visible;transform:translateY(0) scale(1)}
.mux-lang-menu button{display:flex;align-items:center;gap:.7rem;width:100%;padding:.55rem .65rem;border:none;background:none;color:var(--txt);font:inherit;font-size:.83rem;border-radius:9px;cursor:pointer;text-align:left;transition:background .15s}
.mux-lang-menu button .fi{width:23px;height:17px;border-radius:3px;box-shadow:0 0 0 1px rgba(0,0,0,.18)}
.mux-lang-menu button:hover{background:var(--ch)}
.mux-lang-menu button.active{background:linear-gradient(135deg,rgba(255,23,68,.16),rgba(0,212,255,.16));font-weight:600}
@media(max-width:760px){.nav-ctrls{justify-content:center;margin:.6rem 0 .1rem}}