/* ============================================================================
   bat1n.com — a real product site in the Batin instrument register.
   Dark, near-monochrome, teal only on action/active, signal only on "blocked".
   Structured like a security-vendor site (nav, hero, feature grid, sections,
   footer), not a single column in a void.
   ========================================================================== */
:root{
  --night:#0A051D; --night-2:#0E0A2A; --surface:#15103C; --elevated:#1B1550;
  --teal:#5FE9CC; --teal-dim:rgba(95,233,204,.10); --glow:#8DFFF0;
  --signal:#FF5D8F;
  --cream:#F1ECFF; --muted:#A197D6; --dim:#6B6099;
  --line:rgba(161,151,214,.12); --line-2:rgba(161,151,214,.18); --line-teal:rgba(95,233,204,.35);
  --mono:ui-monospace,'JetBrains Mono','SF Mono',Consolas,monospace;
  --sans:'Inter','Segoe UI Variable Text',system-ui,-apple-system,Roboto,sans-serif;
  --r:12px; --r-lg:18px; --r-pill:999px;
  --container:1140px;
  --ease:cubic-bezier(.2,0,0,1);
}
*{box-sizing:border-box;margin:0}
html{scroll-behavior:smooth}
html,body{min-height:100%}
body{background:var(--night);color:var(--cream);font-family:var(--sans);line-height:1.6;
  -webkit-font-smoothing:antialiased;overflow-x:hidden}
::selection{background:var(--teal);color:var(--night)}
a{color:inherit;text-decoration:none}
img,svg{display:block}

.container{max-width:var(--container);margin:0 auto;padding:0 clamp(20px,5vw,40px)}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.04em;color:var(--dim)}
.eyebrow .t{color:var(--teal)}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:9px;font-family:var(--sans);font-size:14px;
  font-weight:600;padding:11px 18px;border-radius:var(--r);cursor:pointer;border:1px solid transparent;
  transition:all var(--t,.15s) var(--ease)}
.btn-primary{background:var(--teal);color:var(--night)}
.btn-primary:hover{background:var(--glow)}
.btn-ghost{background:transparent;color:var(--cream);border-color:var(--line-2)}
.btn-ghost:hover{border-color:var(--line-teal);color:var(--teal)}
.btn svg{width:16px;height:16px}

/* ---- nav ---- */
.nav{position:sticky;top:0;z-index:50;background:rgba(10,5,29,.72);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line)}
.nav .row{display:flex;align-items:center;gap:28px;height:64px}
.brand{display:flex;align-items:center;gap:11px;font-weight:600;letter-spacing:.01em}
.brand img{width:26px;height:26px}
.brand .wm{font-size:16px}
.nav .links{display:flex;align-items:center;gap:26px;margin-left:8px}
.nav .links a{font-size:14px;color:var(--muted);transition:color .15s var(--ease)}
.nav .links a:hover{color:var(--cream)}
.nav .spacer{flex:1}
.nav .right{display:flex;align-items:center;gap:14px}
.nav .ghlink{font-size:14px;color:var(--muted)}
.nav .ghlink:hover{color:var(--cream)}
@media(max-width:760px){.nav .links{display:none}}

/* ---- hero ---- */
.hero{position:relative;border-bottom:1px solid var(--line);overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;z-index:0;
  background:radial-gradient(60% 70% at 78% 20%, rgba(95,233,204,.07), transparent 60%),
             radial-gradient(50% 60% at 10% 90%, rgba(124,156,255,.06), transparent 60%)}
.hero .grid{position:relative;z-index:1;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;
  align-items:center;padding:clamp(56px,9vh,110px) 0 clamp(56px,9vh,100px)}
.hero .status{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:12px;
  color:var(--muted);border:1px solid var(--line-2);border-radius:var(--r-pill);padding:6px 13px;margin-bottom:24px}
.hero .status::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--teal);
  box-shadow:0 0 9px -1px var(--teal)}
.hero h1{font-family:var(--sans);font-weight:600;font-size:clamp(34px,5.2vw,58px);line-height:1.04;
  letter-spacing:-.02em;margin-bottom:20px}
.hero h1 .q{color:var(--muted);font-weight:500}
.hero .sub{font-size:17px;color:var(--muted);max-width:52ch;margin-bottom:32px}
.hero .cta{display:flex;gap:14px;flex-wrap:wrap}
.hero .mark{display:flex;align-items:center;justify-content:center}
.hero .mark img{width:min(300px,72%);height:auto;filter:drop-shadow(0 24px 60px rgba(0,0,0,.5))}
@media(max-width:860px){.hero .grid{grid-template-columns:1fr;gap:24px}.hero .mark{order:-1;justify-content:flex-start}.hero .mark img{width:120px}}

/* ---- section scaffold ---- */
.section{padding:clamp(64px,10vh,110px) 0;border-bottom:1px solid var(--line)}
.section .head{max-width:64ch;margin-bottom:44px}
.section h2{font-family:var(--sans);font-weight:600;font-size:clamp(26px,3.4vw,40px);
  letter-spacing:-.015em;line-height:1.1;margin:12px 0 14px}
.section .lede{font-size:16px;color:var(--muted);max-width:58ch}

/* ---- features: editorial numbered rows (the icon-card grid read as a template) ---- */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:32px 28px;counter-reset:feat}
@media(max-width:900px){.features{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.features{grid-template-columns:1fr;gap:22px}}
.card{background:transparent;border:0;border-top:1px solid var(--line-2);border-radius:0;
  padding:18px 4px 0;counter-increment:feat;transition:border-color .18s var(--ease)}
.card::before{content:"0" counter(feat);font-family:var(--mono);font-size:11px;
  letter-spacing:.14em;color:var(--teal);display:block;margin-bottom:10px}
.card.locked::before{color:var(--signal)}
.card:hover{border-top-color:var(--line-teal)}
.card.locked{border-top-color:rgba(255,93,143,.35)}
.card .ic{display:none}
.card h3{font-size:16px;font-weight:600;margin-bottom:8px;color:var(--cream)}
.card p{font-size:14px;color:var(--muted);line-height:1.6}
.card .tag{display:inline-block;margin-top:14px;font-family:var(--mono);font-size:11px;color:var(--dim)}
.card.locked .tag{color:var(--signal)}
.card .tag.on{color:var(--teal)}

/* ---- soul / quote band ---- */
.band{background:
   linear-gradient(0deg,var(--night),var(--night)),
   radial-gradient(60% 100% at 20% 0%, rgba(95,233,204,.06), transparent 70%);
  border-bottom:1px solid var(--line)}
.band .inner{padding:clamp(64px,10vh,110px) 0}
.band .q{font-family:var(--sans);font-weight:500;font-size:clamp(22px,3vw,34px);line-height:1.3;
  letter-spacing:-.01em;max-width:24ch}
.band .q .hl{color:var(--teal)}
.band .principles{margin-top:40px;display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
@media(max-width:760px){.band .principles{grid-template-columns:1fr;gap:20px}}
.band .principles .p{border-top:1px solid var(--line-2);padding-top:16px}
.band .principles .p .n{font-family:var(--mono);font-size:11px;color:var(--dim);margin-bottom:8px}
.band .principles .p .b{font-size:15px;color:var(--cream);font-weight:500;margin-bottom:6px}
.band .principles .p .d{font-size:13.5px;color:var(--muted);line-height:1.55}

/* ---- editions ---- */
.editions{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
@media(max-width:860px){.editions{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.editions{grid-template-columns:1fr}}
.ed{border:1px solid var(--line);border-radius:var(--r);padding:20px;background:var(--night-2)}
.ed.first{border-color:var(--line-teal);background:var(--surface)}
.ed .k{font-family:var(--mono);font-size:11px;color:var(--dim);margin-bottom:10px}
.ed .nm{font-size:16px;font-weight:600;margin-bottom:6px}
.ed.first .nm{color:var(--teal)}
.ed .d{font-size:13px;color:var(--muted);line-height:1.55}
.ed .now{display:inline-block;margin-top:12px;font-family:var(--mono);font-size:10px;color:var(--teal)}

/* ---- engine banner ---- */
.engine{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
@media(max-width:820px){.engine{grid-template-columns:1fr;gap:24px}}
.engine .stat{display:flex;flex-direction:column;gap:14px}
.engine .stat .f{display:grid;grid-template-columns:140px 1fr;gap:14px;font-family:var(--mono);
  font-size:13px;padding:12px 0;border-top:1px solid var(--line)}
.engine .stat .f .k{color:var(--dim)}
.engine .stat .f .v{color:var(--muted)}
.engine .stat .f .v.on{color:var(--teal)}

/* ---- footer ---- */
.footer{padding:64px 0 40px}
.footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:44px;
  border-bottom:1px solid var(--line)}
@media(max-width:760px){.footer .cols{grid-template-columns:1fr 1fr}}
.footer .about .brand{margin-bottom:14px}
.footer .about p{font-size:13.5px;color:var(--muted);max-width:36ch;line-height:1.6}
.footer .col h4{font-family:var(--mono);font-size:11px;color:var(--dim);margin-bottom:14px;font-weight:400}
.footer .col a{display:block;font-size:14px;color:var(--muted);padding:5px 0;transition:color .15s var(--ease)}
.footer .col a:hover{color:var(--teal)}
.footer .bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:24px;
  font-family:var(--mono);font-size:12px;color:var(--dim)}
.footer .bottom .ar{color:var(--muted)}

/* ============================================================================
   PRINT / PDF. Keep the dark design and the desktop layout in the exported PDF.
   ========================================================================== */
@media print{
  :root{ --container:1100px }
  html,body{ background:var(--night)!important; print-color-adjust:exact; -webkit-print-color-adjust:exact }
  *{ -webkit-print-color-adjust:exact; print-color-adjust:exact }
  @page{ size:1180px 1660px; margin:0 }
  .nav{ position:static }
  .hero .grid{ grid-template-columns:1.15fr .85fr }      /* keep desktop hero */
  .features{ grid-template-columns:repeat(3,1fr) }       /* keep 3-up cards */
  .editions{ grid-template-columns:repeat(4,1fr) }
  .engine{ grid-template-columns:1fr 1fr }
  .band .principles{ grid-template-columns:repeat(3,1fr) }
  .footer .cols{ grid-template-columns:1.4fr 1fr 1fr 1fr }
  .section,.band .inner,.footer{ break-inside:avoid-page }
  .card,.ed{ break-inside:avoid }
}

/* ============================================================================
   v2 POLISH — depth, motion, and the live product mockup.
   ========================================================================== */
.grain{position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.04;mix-blend-mode:overlay;
  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='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
.nav,.hero,.section,.band,.footer{position:relative;z-index:2}

/* hero mockup */
.mark{position:relative}
.glow{position:absolute;inset:-14% -10% -20% -10%;z-index:0;
  background:radial-gradient(48% 48% at 62% 38%, rgba(95,233,204,.20), transparent 70%);filter:blur(22px)}
.mock{position:relative;z-index:1;border-radius:14px;overflow:hidden;border:1px solid var(--line-2);
  background:linear-gradient(180deg,#0E0A2A,#0A0720);
  box-shadow:0 44px 100px -34px rgba(0,0,0,.85),0 0 0 1px rgba(0,0,0,.4);
  transform:perspective(1500px) rotateY(-7deg) rotateX(2.5deg);transition:transform .6s var(--ease)}
.mock:hover{transform:perspective(1500px) rotateY(-2deg) rotateX(1deg)}
.mock-bar{display:flex;align-items:center;gap:8px;padding:10px 13px;background:rgba(255,255,255,.03);border-bottom:1px solid var(--line)}
.mock-bar .d{width:9px;height:9px;border-radius:50%}
.mock-bar .d.r{background:#ff5d6c66}.mock-bar .d.y{background:#ffce5466}.mock-bar .d.g{background:#5fe9cc66}
.mock-addr{margin-left:10px;font-family:var(--mono);font-size:11px;color:var(--dim);background:rgba(255,255,255,.03);border-radius:6px;padding:4px 14px}
.mock-screen{padding:34px 28px 26px;display:flex;flex-direction:column;align-items:center;gap:18px;min-height:236px;justify-content:center}
.clk{text-align:center}
.clk .hms{font-family:var(--mono);font-size:36px;color:var(--cream);font-variant-numeric:tabular-nums;letter-spacing:.02em;line-height:1}
.clk .casc{display:flex;gap:10px;justify-content:center;margin-top:9px;font-family:var(--mono);font-size:11px;color:var(--muted);font-variant-numeric:tabular-nums}
.clk .casc span{min-width:3ch;animation:flick 2.2s steps(1,end) infinite}
.clk .casc span:nth-child(2){animation-duration:1.3s}
.clk .casc span:nth-child(3){animation-duration:.8s}
.clk .casc span:nth-child(4){animation-duration:.5s}
.clk .casc span:nth-child(5){animation-duration:.32s}
@keyframes flick{0%,100%{opacity:.3}50%{opacity:.9}}
.clk .units{display:flex;gap:10px;justify-content:center;margin-top:7px;border-top:1px solid var(--line);padding-top:7px}
.clk .units span{min-width:3ch;font-family:var(--mono);font-size:8.5px;color:var(--dim)}
.msearch{width:100%;display:flex;align-items:center;gap:10px;border:1px solid var(--line-2);border-radius:10px;padding:10px 13px;background:var(--surface)}
.msearch .mg{color:var(--muted);font-size:14px}
.msearch .ph{font-family:var(--mono);font-size:12px;color:var(--dim)}
.mstat{width:100%;display:flex;justify-content:space-between;font-family:var(--mono);font-size:10px;color:var(--dim)}
.mstat .ok{color:var(--teal);display:inline-flex;align-items:center;gap:6px}
.mstat .ok::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--teal);box-shadow:0 0 7px -1px var(--teal);animation:pulse 2.4s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
@media(max-width:860px){.mock{transform:none}.mark{max-width:440px}}

/* card hover glow */
/* card glow removed: features are flat editorial rows now */

/* scroll reveal — progressive enhancement, content shows if unsupported */
@media(prefers-reduced-motion:no-preference){
  @supports (animation-timeline:view()){
    .reveal{animation:rise both linear;animation-timeline:view();animation-range:entry 2% cover 26%}
    @keyframes rise{from{opacity:0;transform:translateY(28px)}to{opacity:1;transform:none}}
  }
}

/* print: flatten the mockup tilt and drop the grain for a crisp PDF */
@media print{
  .grain{display:none}
  .mock{transform:none}
  .glow{opacity:.6}
  .clk .casc span{opacity:.7;animation:none}
  .mstat .ok::before{animation:none}
}

/* ---- inner page headers (Download, Donate, Source, Mission, Mark, Contact) ---- */
.phead{max-width:62ch;margin-bottom:42px}
.ptitle{font-family:var(--sans);font-weight:600;font-size:clamp(30px,4.6vw,52px);letter-spacing:-.02em;line-height:1.06;margin:12px 0 16px}
.plede{font-size:16px;color:var(--muted);max-width:62ch;line-height:1.65}
.nav .links a.brand,.nav a{ text-decoration:none }

/* ---- ecosystem product grid ---- */
.eco{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:760px){.eco{grid-template-columns:1fr}}
.eco .ed .k{color:var(--teal);opacity:.85}