/* RandomZone shared styles — light/dark aware, used by every page in the zone. */
:root{
  --bg:#f5f7fc;--bg2:#e9effb;--surface:#fff;--surface2:#f0f4fb;--ink:#12233a;--mut:#56698a;--line:rgba(18,35,58,.12);
  --a1:#7c4dff;--a2:#e040fb;--gold:#f5a300;--good:#1fae6e;--shadow:0 10px 30px rgba(30,40,80,.10);--shadow-lg:0 24px 60px rgba(30,40,80,.18);
  --pad:22px;--radius:20px;--hero-glow:rgba(124,77,255,.14);color-scheme:light;
}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){
  --bg:#0d0f24;--bg2:#1a1740;--surface:#161a38;--surface2:#1d2247;--ink:#eef2ff;--mut:#a3b0d0;--line:rgba(255,255,255,.12);
  --gold:#ffd54f;--good:#3dd68c;--shadow:0 10px 30px rgba(0,0,0,.35);--shadow-lg:0 24px 60px rgba(0,0,0,.5);--hero-glow:rgba(124,77,255,.3);color-scheme:dark}}
:root[data-theme=dark]{
  --bg:#0d0f24;--bg2:#1a1740;--surface:#161a38;--surface2:#1d2247;--ink:#eef2ff;--mut:#a3b0d0;--line:rgba(255,255,255,.12);
  --gold:#ffd54f;--good:#3dd68c;--shadow:0 10px 30px rgba(0,0,0,.35);--shadow-lg:0 24px 60px rgba(0,0,0,.5);--hero-glow:rgba(124,77,255,.3);color-scheme:dark}
body.water{--a1:#1e9bff;--a2:#5b5bf0;--hero-glow:rgba(30,155,255,.18)}
:root[data-theme=dark] body.water,:root:not([data-theme=light]) body.water{--hero-glow:rgba(30,155,255,.22)}

*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
html{scroll-behavior:smooth;scroll-padding-top:76px}
body{min-height:100vh;background:radial-gradient(1100px 520px at 50% -120px,var(--hero-glow),transparent 70%),linear-gradient(180deg,var(--bg),var(--bg2) 120%) fixed;color:var(--ink);
  font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{max-width:1120px;margin:0 auto;padding:0 max(var(--pad),env(safe-area-inset-left)) 0 max(var(--pad),env(safe-area-inset-right))}
.grad{background:linear-gradient(90deg,var(--a1),var(--a2));-webkit-background-clip:text;background-clip:text;color:transparent}
.only-dark{display:none!important}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]) .only-light{display:none!important}:root:not([data-theme=light]) .only-dark{display:block!important}}
:root[data-theme=dark] .only-light{display:none!important}:root[data-theme=dark] .only-dark{display:block!important}

/* nav */
.nav{position:sticky;top:0;z-index:50;backdrop-filter:saturate(1.4) blur(14px);-webkit-backdrop-filter:saturate(1.4) blur(14px);background:color-mix(in srgb,var(--bg) 78%,transparent);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;gap:18px;height:64px}
.brand{font-weight:900;font-size:1.12rem;text-decoration:none;letter-spacing:-.01em;display:flex;align-items:center;gap:8px;white-space:nowrap}
.brand b{background:linear-gradient(90deg,#7c4dff,#e040fb);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav .links{display:flex;gap:4px;margin-left:auto;align-items:center}
.nav .links a{color:var(--mut);text-decoration:none;font-weight:600;font-size:.92rem;padding:8px 11px;border-radius:10px}
.nav .links a:hover{color:var(--ink);background:var(--surface2)}
.iconbtn{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer;font-size:1.05rem;display:grid;place-items:center}
.iconbtn:hover{background:var(--surface2)}
@media (max-width:820px){.nav .links a.hide-sm{display:none}}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 24px;border-radius:14px;font:inherit;font-weight:800;text-decoration:none;cursor:pointer;border:1px solid transparent;transition:transform .15s,box-shadow .15s}
.btn:active{transform:scale(.97)}
.btn.primary{color:#fff;background:linear-gradient(135deg,var(--a1),var(--a2));box-shadow:0 10px 26px color-mix(in srgb,var(--a1) 45%,transparent)}
.btn.primary:hover{transform:translateY(-2px)}
.btn.ghost{background:var(--surface);border-color:var(--line);color:var(--ink)}
.btn.ghost:hover{background:var(--surface2)}
.btn.sm{min-height:38px;padding:0 15px;border-radius:11px;font-size:.88rem}

/* sections */
section{padding:72px 0}
.eyebrow{display:inline-block;font-size:.76rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--a1);background:color-mix(in srgb,var(--a1) 12%,transparent);border:1px solid color-mix(in srgb,var(--a1) 30%,transparent);padding:5px 13px;border-radius:999px}
h2.title{font-size:clamp(1.7rem,4.6vw,2.5rem);font-weight:900;letter-spacing:-.025em;line-height:1.12;text-align:center;margin-top:12px}
p.lead{color:var(--mut);text-align:center;max-width:640px;margin:12px auto 0;font-size:1.05rem}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.grid{display:grid;gap:16px}
footer.site{border-top:1px solid var(--line);padding:34px 0 48px;color:var(--mut);font-size:.9rem}
footer.site .wrap{display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between}
footer.site a{color:var(--mut);text-decoration:none}footer.site a:hover{color:var(--ink);text-decoration:underline}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}

/* mobile + touch hardening */
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{overflow-wrap:break-word}
.card,.grid>*{min-width:0}
code,kbd,samp{overflow-wrap:anywhere}
input[type=range]{min-height:28px}
.brand{min-height:44px}
.nav .links a{min-height:40px;display:inline-flex;align-items:center}
footer.site{padding-bottom:calc(48px + env(safe-area-inset-bottom))}
footer.site a{display:inline-block;padding:8px 2px}
.get-app-hide{display:none!important}
@media (max-width:600px){
  :root{--pad:16px}
  section{padding:48px 0}
  .nav .wrap{gap:10px;height:58px}
  .card{border-radius:16px}
  h2.title{margin-top:10px}
}
@media (max-width:360px){.brand{font-size:1.02rem}.btn{padding:0 18px}}