@layer base, ui;

@layer base{
  :root{
    color-scheme:dark;
    --bg:oklch(.17 .028 255);
    --card:oklch(.23 .032 255);
    --text:oklch(.95 .008 250);
    --muted:oklch(.76 .028 248);
    --blue:oklch(.75 .125 242);
    --blue2:oklch(.84 .1 236);
    --red:oklch(.66 .2 25);
    --radius:14px;
    --ring:color-mix(in oklab,var(--blue) 60%,transparent);
    --border:color-mix(in oklab,var(--blue) 20%,transparent);
    --border-strong:color-mix(in oklab,var(--blue) 38%,transparent);
    --shadow:0 14px 40px oklch(.05 .03 255/.45);
    --mono:Consolas,'Cascadia Code',Menlo,monospace;
    --sans:Inter,system-ui,'Segoe UI',Roboto,Arial,sans-serif;
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{-webkit-text-size-adjust:100%;scrollbar-width:thin;scrollbar-color:color-mix(in oklab,var(--blue) 30%,transparent) transparent}
  body{min-height:100svh;background:linear-gradient(180deg,oklch(.19 .03 255),var(--bg) 42%);color:var(--text);font-family:var(--sans);font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
  body::before{content:'';position:fixed;inset:0;z-index:-1;pointer-events:none;background:
    radial-gradient(880px 520px at 84% -12%,color-mix(in oklab,var(--blue) 14%,transparent),transparent 62%),
    radial-gradient(720px 500px at -12% 34%,oklch(.6 .12 285/.07),transparent 60%),
    radial-gradient(900px 560px at 50% 118%,oklch(.6 .15 30/.06),transparent 62%)}
  body::after{content:'';position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.028;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E")}
  ::selection{background:color-mix(in oklab,var(--blue) 40%,transparent)}
  :focus-visible{outline:2px solid var(--blue);outline-offset:3px;border-radius:6px}
  a,button{touch-action:manipulation}
}

@layer ui{
  .container{max-width:1080px;margin:0 auto;padding:0 22px}
  .blue{color:var(--blue)} .red{color:var(--red)} .muted{color:var(--muted)} .small{font-size:12px}
  h1,h2,h3{text-wrap:balance}
  p{text-wrap:pretty}
  /* NAV */
  .nav{position:sticky;top:0;z-index:50;background:color-mix(in oklab,var(--bg) 72%,transparent);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}
  .nav-inner{display:flex;align-items:center;justify-content:space-between;height:62px}
  .logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);background:none;border:0;padding:0;font:inherit;cursor:pointer;transition:opacity .18s ease}
  .logo:hover{opacity:.85}
  .logo-banner{height:38px;width:auto;display:block}
  .logo.sm .logo-banner{height:48px}
  .nav-right{display:flex;align-items:center;gap:12px}
  .gh{color:var(--muted);text-decoration:none;display:inline-flex;padding:8px;border-radius:999px;transition:color .18s ease,background .18s ease}.gh:hover{color:var(--blue);background:color-mix(in oklab,var(--blue) 10%,transparent)}.gh svg{display:block}
  .langseg{display:flex;border:1px solid var(--border);border-radius:999px;overflow:hidden;background:color-mix(in oklab,var(--blue) 5%,transparent)}
  .langseg button{background:transparent;border:0;color:var(--muted);font-size:11.5px;font-weight:700;padding:5px 11px;cursor:pointer;font-family:var(--sans);transition:color .18s ease,background .18s ease}
  .langseg button+button{border-left:1px solid var(--border)}
  .langseg button.on{background:var(--blue);color:oklch(.18 .03 255)}
  .langseg button:not(.on):hover{color:var(--text)}
  /* HERO */
  .hero{position:relative;padding:52px 0 46px;border-bottom:1px solid var(--border);overflow:hidden}
  .hero::before{content:'';position:absolute;inset:0;z-index:0;pointer-events:none;background-image:
    linear-gradient(color-mix(in oklab,var(--blue) 6%,transparent) 1px,transparent 1px),
    linear-gradient(90deg,color-mix(in oklab,var(--blue) 6%,transparent) 1px,transparent 1px);
    background-size:40px 40px;opacity:.8;
    -webkit-mask-image:radial-gradient(720px 400px at 62% 4%,#000,transparent 78%);
    mask-image:radial-gradient(720px 400px at 62% 4%,#000,transparent 78%)}
  .hero::after{content:'';position:absolute;top:-170px;right:-100px;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,color-mix(in oklab,var(--blue) 16%,transparent),transparent 65%);pointer-events:none;animation:drift 16s ease-in-out infinite alternate}
  @keyframes drift{to{translate:-44px 28px;scale:1.07}}
  .hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1.06fr;gap:40px;align-items:center}
  .hero h1{font-size:clamp(26px,3.6vw,36px);line-height:1.2;letter-spacing:-.02em;margin:0 0 12px;max-width:24ch}
  .hero h1 .blue,.show-text h2 .blue{background:linear-gradient(115deg,var(--blue2),var(--blue));background-clip:text;-webkit-background-clip:text;color:transparent}
  .hero .desc{color:var(--muted);font-size:15px;line-height:1.65;margin-bottom:20px;max-width:50ch}
  .btns{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
  .btn{display:inline-flex;align-items:center;gap:9px;height:44px;padding:0 20px;border-radius:999px;text-decoration:none;font-size:13.5px;font-weight:600;letter-spacing:.01em;white-space:nowrap;border:1px solid transparent;color:var(--text);transition:translate .18s ease,scale .18s ease,box-shadow .18s ease,border-color .18s ease,background .18s ease,color .18s ease}
  .btn svg{flex:none;display:block;width:17px;height:17px}
  .btn b{font-weight:650}
  .btn small{font-size:11.5px;font-weight:500;color:inherit;opacity:.62}
  .btn:active{translate:0 0;scale:.97}
  .btn.primary{background:linear-gradient(180deg,oklch(1 0 0),oklch(.94 .008 250));color:oklch(.21 .03 255);box-shadow:inset 0 1px 0 oklch(1 0 0/.9),0 6px 20px oklch(.05 .03 255/.45)}
  .btn.primary:hover{translate:0 -2px;background:linear-gradient(180deg,oklch(1 0 0),oklch(.92 .035 245));box-shadow:inset 0 1px 0 oklch(1 0 0/.95),0 12px 32px oklch(.05 .03 255/.55),0 0 0 4px oklch(1 0 0/.07)}
  .btn.primary small{opacity:.58}
  .btn.outline{background:oklch(1 0 0/.05);border-color:oklch(1 0 0/.14);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:inset 0 1px 0 oklch(1 0 0/.05)}
  .btn.outline:hover{translate:0 -2px;background:linear-gradient(180deg,oklch(1 0 0/.1),color-mix(in oklab,var(--blue) 16%,transparent));border-color:oklch(1 0 0/.26);box-shadow:inset 0 1px 0 oklch(1 0 0/.08),0 10px 26px oklch(.05 .03 255/.4)}
  .btn.ghost{background:oklch(1 0 0/.04);border-color:oklch(1 0 0/.12);color:var(--muted)}
  .btn.ghost:hover{translate:0 -2px;color:var(--text);background:linear-gradient(180deg,oklch(1 0 0/.09),color-mix(in oklab,var(--blue) 12%,transparent));border-color:oklch(1 0 0/.22)}
  .release{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:11.5px;color:var(--muted);font-family:var(--mono);border:1px solid var(--border);border-radius:999px;padding:5px 12px;background:color-mix(in oklab,var(--card) 50%,transparent)}
  /* APP PREVIEW — styled like the TUI */
  .app{
    position:relative;
    --t-primary:#6FB3FF; --t-soft:#A9D2FF; --t-deep:#1E3F73; --t-ok:#57DBA4;
    --t-err:#FF9494; --t-gray:#AFC2DE; --t-dim:#6E82A6; --t-white:#EFF5FF;
    --t-border:#3A5480; --t-line:#26395A; --t-accent:#8FB4E3;
    font-family:var(--mono);font-size:11.5px;line-height:1.55;color:var(--t-white)}
  .app::before{content:'';position:absolute;inset:-8% -6%;z-index:0;border-radius:26px;background:radial-gradient(60% 58% at 50% 42%,color-mix(in oklab,var(--blue) 16%,transparent),transparent 72%);filter:blur(18px);pointer-events:none;animation:pulse 9s ease-in-out infinite alternate}
  .app::after{content:'';position:absolute;left:10%;right:10%;bottom:-16px;height:24px;z-index:0;border-radius:50%;background:radial-gradient(closest-side,color-mix(in oklab,var(--blue) 25%,transparent),transparent);filter:blur(12px);pointer-events:none}
  @keyframes pulse{to{opacity:.6;scale:1.03}}
  .app-box{position:relative;z-index:1;border:1px solid transparent;border-radius:12px;padding:16px 18px;background:
    linear-gradient(oklch(.235 .03 255),oklch(.215 .03 255)) padding-box,
    linear-gradient(150deg,color-mix(in oklab,var(--blue2) 50%,transparent),color-mix(in oklab,var(--blue) 8%,transparent) 45%,color-mix(in oklab,var(--blue2) 30%,transparent)) border-box;
    box-shadow:0 18px 48px oklch(.05 .03 255/.5),0 0 40px color-mix(in oklab,var(--blue) 8%,transparent)}
  .app-box::after{content:'';position:absolute;inset:0;border-radius:inherit;pointer-events:none;background:linear-gradient(180deg,oklch(1 0 0/.05),transparent 34%)}
  .t-accent{color:var(--t-accent);font-weight:700}
  .t-dot{width:.5em;height:.5em;border-radius:50%;background:var(--t-ok);display:inline-block;flex:none}
  .t-dot.err{background:var(--t-err)}
  .t-key{color:var(--t-dim);white-space:nowrap}
  .t-key b{color:var(--t-soft);font-weight:700}
  .t-title{font-weight:700;color:var(--t-white)}
  .t-sub{color:var(--t-gray)}
  .t-rule{border-top:1px solid var(--t-line);margin:8px 0}
  .t-section{color:var(--t-accent);font-weight:700;margin-top:10px}
  .t-strip{border-left:1px solid var(--t-line);padding-left:1ch;margin-top:2px}
  .t-input{display:flex;align-items:center;border:1px solid var(--t-primary);border-radius:8px;padding:0 1ch;min-height:1.9em;margin-top:2px;white-space:nowrap;overflow:hidden}
  .t-ph{color:var(--t-dim)}
  .t-cursor{flex:none;width:1ch;height:1.05em;background:var(--t-soft);animation:blink 1.06s steps(1) infinite}
  .t-link{color:var(--t-soft)}
  .t-sess{display:flex;align-items:center;gap:.5ch;color:var(--t-dim)}
  .t-sess b{color:var(--t-white);font-weight:700}
  .t-sess .t-dot{margin-right:.2ch}
  .t-meta{color:var(--t-dim)}
  .t-help{color:var(--t-gray);margin-top:8px}
  .t-bind{white-space:nowrap}
  .t-sep{color:var(--t-gray);margin:0 1ch}
  .t-menu{list-style:none;margin:0;padding:0}
  .t-menu li{display:flex;align-items:baseline;padding:0 1ch;color:var(--t-gray)}
  .t-ind{display:inline-block;width:0;white-space:pre}
  .t-menu li.sel .t-ind{width:2ch}
  .t-mark{display:inline-block;width:2ch;white-space:pre;color:var(--t-primary);font-weight:700}
  .t-mark::before{content:'  '}
  .t-menu li.sel .t-mark::before{content:'❱ '}
  .t-n{display:inline-block;min-width:2ch;text-align:right;color:var(--t-dim)}
  .t-menu li.sel .t-n{color:var(--t-primary);font-weight:700}
  .t-t{margin-left:2ch}
  .t-menu li.sel .t-t{margin-left:1ch;color:var(--t-white);font-weight:700}
  @keyframes blink{50%{opacity:0}}
  /* SECTIONS */
  .features{position:relative;padding:64px 0;border-bottom:1px solid var(--border)}
  .features::before{content:'';position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,color-mix(in oklab,var(--card) 45%,transparent),transparent)}
  .features h2{text-align:center;font-size:clamp(22px,2.6vw,28px);letter-spacing:-.02em}
  .sub{text-align:center;color:var(--muted);font-size:14px;margin:8px auto 28px;max-width:52ch}
  .grid8{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
  .f{position:relative;overflow:hidden;display:grid;grid-template-columns:auto 1fr;gap:0 10px;align-content:start;background:color-mix(in oklab,var(--card) 60%,transparent);border:1px solid var(--border);border-radius:var(--radius);padding:16px;transition:opacity .2s ease,translate .2s ease,border-color .2s ease,box-shadow .2s ease,background .2s ease}
  .f::before{content:'';position:absolute;inset:0 0 auto;height:1px;background:linear-gradient(90deg,transparent,color-mix(in oklab,var(--blue) 55%,transparent),transparent);opacity:0;transition:opacity .25s ease;pointer-events:none}
  .f:hover::before{opacity:1}
  .f:hover{translate:0 -2px;border-color:var(--border-strong);background:color-mix(in oklab,var(--card) 85%,transparent);box-shadow:var(--shadow)}
  .grid8:has(.f:hover) .f:not(:hover){opacity:.8}
  .f .ic{width:34px;height:34px;border:1px solid var(--border);border-radius:10px;display:grid;place-items:center;color:var(--blue);background:color-mix(in oklab,var(--blue) 9%,transparent);transition:border-color .2s ease,box-shadow .2s ease}
  .f:hover .ic{border-color:var(--border-strong);box-shadow:0 0 20px color-mix(in oklab,var(--blue) 20%,transparent)}
  .f .ic svg{width:19px;height:19px;display:block}
  .f h3{grid-column:2;align-self:center;font-size:14px;letter-spacing:-.01em}
  .f p{grid-column:1/-1;font-size:13px;line-height:1.55;color:var(--muted);margin-top:8px}
  .showcase{position:relative;padding:64px 0;border-bottom:1px solid var(--border)}
  .show-grid{display:grid;grid-template-columns:1.15fr .9fr;gap:40px;align-items:center}
  .eyebrow{font-size:10.5px;font-weight:600;letter-spacing:.18em;color:var(--blue2);opacity:.9}
  .show-text h2{font-size:clamp(22px,2.6vw,27px);line-height:1.25;letter-spacing:-.02em;margin:8px 0 12px}
  .show-text .desc{color:var(--muted);font-size:14px;line-height:1.65;margin-bottom:14px}
  .checks{list-style:none}.checks li{font-size:14px;margin:6px 0;padding-left:22px;position:relative}
  .checks li::before{content:'✔';position:absolute;left:0;color:var(--blue);font-size:12px;top:1px}
  .fmts{display:flex;flex-wrap:wrap;gap:5px;align-items:center;margin-top:16px;font-size:12px}
  .fmts-lbl{color:var(--muted);margin-right:2px}
  .fmt{font-family:var(--mono);font-size:11px;padding:2px 8px;border:1px solid var(--border);border-radius:999px;background:color-mix(in oklab,var(--card) 70%,transparent);color:var(--blue2);transition:border-color .18s ease}
  .fmt:hover{border-color:var(--border-strong)}
  /* FOOTER */
  footer{padding:26px 0 14px;background:linear-gradient(180deg,color-mix(in oklab,var(--card) 22%,transparent),transparent 70%)}
  .foot-top{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;flex-wrap:wrap}
  .foot-top.center{flex-direction:column;align-items:center;text-align:center;gap:12px}
  .foot-top.center .logo{justify-content:center}
  .fres{display:flex;gap:8px 20px;flex-wrap:wrap;justify-content:center}
  .fres a{color:var(--muted);text-decoration:none;font-size:13px;transition:color .18s ease}
  .fres a:hover{color:var(--blue)}
  .foot-bot{display:flex;justify-content:space-between;margin-top:18px;font-size:12px;color:var(--muted);flex-wrap:wrap;gap:8px}
  /* MOTION */
  .rv{opacity:0;translate:0 14px;transition:opacity .5s ease,translate .5s ease}
  .rv.vis{opacity:1;translate:0 0}
  @keyframes fadeUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
  @keyframes navSolid{
    from{background:color-mix(in oklab,var(--bg) 72%,transparent);box-shadow:0 0 0 0 oklch(.05 .03 255/0)}
    to{background:color-mix(in oklab,var(--bg) 90%,transparent);box-shadow:0 12px 32px oklch(.05 .03 255/.4)}
  }
  @media(prefers-reduced-motion:no-preference){
    @supports (animation-timeline: view()){
      .features .f,.show-text,.showcase .app{animation:fadeUp linear both;animation-timeline:view();animation-range:entry 8% cover 30%}
      .features .f:nth-child(2n){animation-range:entry 4% cover 30%}
      .features .f:nth-child(4n){animation-range:entry 0% cover 30%}
    }
    @supports (animation-timeline: scroll()){
      .nav{animation:navSolid linear both;animation-timeline:scroll(root);animation-range:0 140px}
    }
    .hero-left,.hero-right{opacity:1;translate:0 0;transition:opacity .55s ease,translate .55s ease}
    @starting-style{
      .hero-left,.hero-right{opacity:0;translate:0 10px}
    }
  }
  @media(prefers-reduced-motion:reduce){
    .rv{opacity:1;translate:0 0;transition:none}
    .hero::after{animation:none}
    .app::before{animation:none}
    .btn,.f,.t-menu li{transition:none}
    .f::before{transition:none}
  }
  /* VIEW TRANSITIONS */
  ::view-transition-old(root),::view-transition-new(root){animation-duration:.22s}
  /* RESPONSIVE */
  @media(max-width:1024px){
    .grid8{grid-template-columns:repeat(2,1fr)}
  }
  @media(max-width:900px){
    .hero{padding:44px 0 40px}
    .hero-grid,.show-grid{grid-template-columns:1fr}
    .features,.showcase{padding:56px 0}
  }
  @media(max-width:560px){
    .container{padding:0 16px}
    .grid8{grid-template-columns:1fr}
    .hero h1{font-size:25px;max-width:none}
    .btns .btn{flex:1 1 100%;justify-content:center}
    .btns .btn.ghost{flex:1 1 auto}
    .grid8:has(.f:hover) .f:not(:hover){opacity:1}
  }
}