:root{
  --ink:#16171A;
  --ink-2:#494d56;
  --ink-3:#727680;
  --paper:#F4F4F1;
  --card:#FFFFFF;
  --line:rgba(22,23,26,0.10);
  --line-2:rgba(22,23,26,0.06);
  --dark:#121317;
  --dark-2:#191b20;
  --dark-line:rgba(255,255,255,0.10);
  --accent:#D32F2F;
  --radius:14px;
  --maxw:1160px;
  --c-text:#c9d1d9; --c-com:#8b949e; --c-kw:#ff7b72; --c-str:#a5d6ff;
  --c-type:#d2a8ff; --c-tag:#7ee787; --c-attr:#79c0ff; --c-num:#79c0ff;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:"IBM Plex Sans",system-ui,sans-serif;
  font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{font-family:"Space Grotesk",sans-serif;font-weight:600;line-height:1.08;margin:0;letter-spacing:-0.02em;}
a{color:inherit;text-decoration:none;}
p{margin:0;}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px;}
.mono{font-family:"IBM Plex Mono",monospace;}
.eyebrow{font-family:"IBM Plex Mono",monospace;font-size:12.5px;letter-spacing:0.12em;text-transform:uppercase;color:var(--accent);font-weight:500;}
.btn{
  display:inline-flex;align-items:center;gap:9px;font-family:"IBM Plex Sans",sans-serif;
  font-weight:600;font-size:15.5px;padding:13px 20px;border-radius:calc(var(--radius) - 4px);
  border:1px solid transparent;cursor:pointer;transition:transform .14s ease, background .14s ease, border-color .14s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px);}
.btn--red{background:var(--accent);color:#fff;}
.btn--red:hover{background:#b9281f;}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--line);}
.btn--ghost:hover{border-color:var(--ink);}
.btn--ondark{background:transparent;color:#fff;border-color:var(--dark-line);}
.btn--ondark:hover{border-color:#fff;}
.ic{width:17px;height:17px;display:inline-block;flex:none;}

/* ---------- announcement ---------- */
.ticker{background:var(--dark);color:rgba(255,255,255,0.78);font-family:"IBM Plex Mono",monospace;font-size:12.5px;letter-spacing:0.02em;}
.ticker .wrap{display:flex;align-items:center;gap:10px;height:38px;}
.ticker .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);flex:none;box-shadow:0 0 0 4px rgba(211,47,47,0.18);}
.ticker b{color:#fff;font-weight:500;}
.ticker .sep{opacity:0.35;}
@media(max-width:720px){
  .ticker .wrap{height:auto;padding:9px 0;font-size:11.5px;margin-left:10px;}
  .ticker .sep,.ticker .wrap > span:last-child{display:none;}
}

/* ---------- nav ---------- */
header.nav{position:sticky;top:0;z-index:50;background:rgba(244,244,241,0.82);backdrop-filter:blur(12px);border-bottom:1px solid transparent;transition:border-color .2s ease, background .2s ease;}
header.nav.scrolled{border-bottom-color:var(--line);background:rgba(244,244,241,0.94);}
.nav .wrap{display:flex;align-items:center;gap:28px;height:70px;}
.brand{display:flex;align-items:center;gap:11px;}
.brand img{width:38px;height:38px;border-radius:9px;display:block;}
.brand .wm{display:flex;flex-direction:column;line-height:1.05;}
.brand .wm b{font-family:"Space Grotesk",sans-serif;font-weight:600;font-size:16px;letter-spacing:-0.01em;}
.brand .wm span{font-family:"IBM Plex Mono",monospace;font-size:10px;letter-spacing:0.14em;text-transform:uppercase;color:var(--ink-3);}
.nav nav{display:flex;gap:26px;margin-left:6px;}
.nav nav a{font-size:15px;color:var(--ink-2);font-weight:500;transition:color .14s ease;}
.nav nav a:hover,.nav nav a.active{color:var(--ink);}
.nav .spacer{flex:1;}
@media(max-width:860px){.nav nav{display:none;}}

/* ---------- hero ---------- */
.hero{background:var(--dark);color:#fff;position:relative;overflow:hidden;}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--dark-line) 1px,transparent 1px),linear-gradient(90deg,var(--dark-line) 1px,transparent 1px);background-size:46px 46px;mask-image:radial-gradient(ellipse 80% 70% at 70% 0%,#000 0%,transparent 75%);opacity:0.5;}
.hero .wrap{position:relative;display:grid;grid-template-columns:1.05fr 1fr;gap:54px;align-items:center;padding:72px 28px 78px;}
.hero h1{font-size:clamp(34px,4.4vw,56px);letter-spacing:-0.03em;}
.hero h1 em{font-style:normal;color:var(--accent);}
.hero .lede{color:rgba(255,255,255,0.7);font-size:18.5px;margin-top:22px;max-width:31em;}
.hero .cta{display:flex;gap:12px;margin-top:30px;flex-wrap:wrap;}
.hero .trust{margin-top:20px;font-family:"IBM Plex Mono",monospace;font-size:12.5px;color:rgba(255,255,255,0.5);display:flex;align-items:center;gap:8px;}
.hero .trust .g{color:#7ee787;}
.hero .htags{margin-top:26px;display:flex;flex-wrap:wrap;gap:8px;}
.hero .htags .t{font-family:"IBM Plex Mono",monospace;font-size:11.5px;color:rgba(255,255,255,0.7);background:rgba(255,255,255,0.05);border:1px solid var(--dark-line);padding:5px 11px;border-radius:999px;}
.hero.hero--light{background:var(--paper);color:var(--ink);}
.hero.hero--light::before{display:none;}
.hero.hero--light .lede{color:var(--ink-2);}
.hero.hero--light .trust{color:var(--ink-3);}
.hero.hero--light .htags .t{color:var(--ink-2);background:var(--card);border-color:var(--line);}
.hero.hero--light .btn--ondark{color:var(--ink);border-color:var(--line);}
.hero.hero--light .btn--ondark:hover{border-color:var(--ink);}
@media(max-width:860px){.hero .wrap{grid-template-columns:1fr;gap:38px;padding:50px 28px 56px;}}

/* ---------- code editor ---------- */
.editor{background:#0c0d11;border:1px solid var(--dark-line);border-radius:var(--radius);overflow:hidden;box-shadow:0 30px 60px -24px rgba(0,0,0,0.6);}
.editor .bar{display:flex;align-items:center;gap:7px;padding:11px 14px;border-bottom:1px solid var(--dark-line);background:#101116;}
.editor .bar .dots{display:flex;gap:6px;margin-right:6px;}
.editor .bar .dots i{width:11px;height:11px;border-radius:50%;display:block;}
.editor .tabs{display:flex;gap:2px;}
.editor .tab{font-family:"IBM Plex Mono",monospace;font-size:12px;color:#8b949e;padding:5px 12px;border-radius:7px 7px 0 0;cursor:pointer;border:1px solid transparent;border-bottom:none;transition:color .12s ease,background .12s ease;}
.editor .tab.active{color:#fff;background:#0c0d11;border-color:var(--dark-line);}
.editor pre{margin:0;padding:20px 20px 24px;overflow-x:auto;font-family:"IBM Plex Mono",monospace;font-size:13.5px;line-height:1.7;color:var(--c-text);}
.editor pre::-webkit-scrollbar{height:8px;}
.editor pre::-webkit-scrollbar-thumb{background:#2a2d34;border-radius:8px;}
.editor .pane{display:none;}
.editor .pane.active{display:block;}
.ln{color:#484e58;user-select:none;display:inline-block;width:1.6em;}
.c-com{color:var(--c-com);font-style:italic;} .c-kw{color:var(--c-kw);} .c-str{color:var(--c-str);}
.c-type{color:var(--c-type);} .c-tag{color:var(--c-tag);} .c-attr{color:var(--c-attr);} .c-num{color:var(--c-num);}

/* ---------- generic section ---------- */
section{padding:84px 0;}
.sec-head{max-width:38em;margin-bottom:44px;}
.sec-head h2{font-size:clamp(26px,3vw,38px);margin-top:12px;}
.sec-head p{color:var(--ink-2);font-size:18px;margin-top:14px;}

/* page-hero (non-home) */
.page-hero{padding:64px 0 8px;}
.page-hero h1{font-size:clamp(32px,4.2vw,52px);}
.page-hero .lede{color:var(--ink-2);font-size:19px;margin-top:18px;max-width:34em;}

/* ---------- faceless band ---------- */
.faceless{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;}
.feat{background:var(--card);padding:30px 28px;}
.feat .n{font-family:"IBM Plex Mono",monospace;font-size:12px;color:var(--accent);letter-spacing:0.08em;}
.feat h3{font-size:19px;margin:14px 0 8px;}
.feat p{color:var(--ink-2);font-size:15.5px;}
@media(max-width:760px){.feat-grid{grid-template-columns:1fr;}}

/* ---------- credential / stats ---------- */
.cred{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:center;}
.cred .badge-cred{display:inline-flex;align-items:center;gap:9px;background:rgba(211,47,47,0.08);border:1px solid rgba(211,47,47,0.25);border-radius:8px;padding:7px 14px;font-family:"IBM Plex Mono",monospace;font-size:12.5px;font-weight:500;color:var(--accent);margin-bottom:18px;}
.cred h2{font-size:clamp(26px,3vw,38px);}
.cred p{color:var(--ink-2);font-size:17px;margin-top:16px;}
.stats-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;}
.stat{background:var(--card);padding:30px 28px;}
.stat .num{font-family:"Space Grotesk";font-size:42px;font-weight:600;letter-spacing:-0.02em;line-height:1;}
.stat .num span{color:var(--accent);}
.stat .lbl{font-size:14px;color:var(--ink-3);margin-top:10px;font-family:"IBM Plex Mono",monospace;}
@media(max-width:760px){.cred{grid-template-columns:1fr;gap:34px;}}
.stats-grid--4{grid-template-columns:repeat(4,1fr);}
@media(max-width:860px){.stats-grid--4{grid-template-columns:repeat(2,1fr);}}

/* ---------- tutorials ---------- */
.vid-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.vid{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--card);transition:transform .16s ease, box-shadow .16s ease, border-color .16s ease;}
.vid:hover{transform:translateY(-4px);box-shadow:0 22px 40px -26px rgba(22,23,26,0.4);}
.vid .thumb{position:relative;aspect-ratio:16/9;background:#101116;display:block;}
.vid .thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;}
.vid .thumb .playover{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;z-index:2;background:rgba(12,13,17,0.12);transition:background .16s ease;}
.vid:hover .thumb .playover{background:rgba(12,13,17,0.04);}
.vid .thumb .playover i{width:54px;height:54px;border-radius:50%;background:rgba(211,47,47,0.94);display:flex;align-items:center;justify-content:center;box-shadow:0 8px 24px rgba(0,0,0,0.35);transition:transform .16s ease;}
.vid:hover .thumb .playover i{transform:scale(1.08);}
.vid .thumb .playover i svg{width:20px;height:20px;margin-left:3px;}
.vid .ph{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:repeating-linear-gradient(135deg,#15171d,#15171d 11px,#181b22 11px,#181b22 22px);}
.vid .ph .play{width:54px;height:54px;border-radius:50%;background:var(--accent);display:flex;align-items:center;justify-content:center;box-shadow:0 8px 24px rgba(211,47,47,0.4);}
.vid .ph .play svg{width:20px;height:20px;margin-left:3px;}
.vid .dur{position:absolute;right:10px;bottom:10px;background:rgba(0,0,0,0.8);color:#fff;font-family:"IBM Plex Mono",monospace;font-size:11.5px;padding:3px 7px;border-radius:6px;z-index:2;}
.vid .soon{position:absolute;left:10px;top:10px;background:var(--accent);color:#fff;font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:0.06em;text-transform:uppercase;padding:4px 8px;border-radius:6px;z-index:2;}
.vid .body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:9px;flex:1;}
.vid .tag{font-family:"IBM Plex Mono",monospace;font-size:11.5px;color:var(--ink-3);letter-spacing:0.06em;}
.vid h3{font-size:18px;line-height:1.25;}
.vid .links{margin-top:auto;display:flex;gap:16px;flex-wrap:wrap;padding-top:4px;}
.vid .links a{font-family:"IBM Plex Sans";font-size:13.5px;font-weight:600;color:var(--accent);display:inline-flex;align-items:center;gap:5px;}
.vid .links a:hover{text-decoration:underline;}
.vid .meta{margin-top:auto;font-size:13.5px;color:var(--ink-3);}
.vid.is-soon{border-style:dashed;}
@media(max-width:860px){.vid-grid{grid-template-columns:1fr;}}

/* ---------- learning paths ---------- */
.paths{background:var(--card);border-top:1px solid var(--line);}
.tabs-row{display:flex;gap:8px;margin-bottom:30px;flex-wrap:wrap;}
.ptab{font-family:"IBM Plex Sans",sans-serif;font-weight:600;font-size:15px;padding:11px 18px;border-radius:999px;border:1px solid var(--line);background:transparent;cursor:pointer;color:var(--ink-2);transition:all .14s ease;display:flex;align-items:center;gap:9px;}
.ptab .pic{width:9px;height:9px;border-radius:50%;background:var(--ink-3);}
.ptab.active{background:var(--ink);color:#fff;border-color:var(--ink);}
.ptab.active .pic{background:var(--accent);}
.path-pane{display:none;}
.path-pane.active{display:block;animation:fade .3s ease;}
@keyframes fade{from{opacity:0;transform:translateY(6px);}to{opacity:1;transform:none;}}
.steps{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;}
.step{background:var(--card);padding:22px 24px;display:flex;gap:16px;align-items:flex-start;}
.step .num{font-family:"IBM Plex Mono",monospace;font-size:13px;color:var(--accent);font-weight:500;padding-top:2px;min-width:28px;}
.step h4{font-size:16.5px;font-family:"Space Grotesk";font-weight:600;}
.step p{color:var(--ink-2);font-size:14.5px;margin-top:5px;}
@media(max-width:680px){.steps{grid-template-columns:1fr;}}

/* ---------- newsletter ---------- */
.news{background:var(--dark);color:#fff;border-radius:var(--radius);padding:56px 48px;text-align:center;position:relative;overflow:hidden;}
.news::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 50% -20%,rgba(211,47,47,0.22),transparent 60%);}
.news>*{position:relative;}
.news h2{font-size:clamp(26px,3vw,40px);}
.news p.sub{color:rgba(255,255,255,0.7);font-size:18px;margin-top:14px;}
.nl-form{display:flex;gap:10px;max-width:480px;margin:30px auto 0;}
.nl-form input{flex:1;background:rgba(255,255,255,0.06);border:1px solid var(--dark-line);color:#fff;border-radius:calc(var(--radius) - 4px);padding:14px 16px;font-family:"IBM Plex Sans";font-size:15.5px;outline:none;transition:border-color .14s ease;}
.nl-form input::placeholder{color:rgba(255,255,255,0.4);}
.nl-form input:focus{border-color:var(--accent);}
.nl-form input.err{border-color:#ff6b6b;}
.nl-note{font-family:"IBM Plex Mono",monospace;font-size:12.5px;color:rgba(255,255,255,0.45);margin-top:16px;}
.nl-ok{display:none;margin:26px auto 0;max-width:480px;background:rgba(126,231,135,0.1);border:1px solid rgba(126,231,135,0.35);border-radius:var(--radius);padding:18px 20px;color:#cdefd0;font-size:15.5px;}
.nl-ok.show{display:block;animation:fade .3s ease;}
@media(max-width:560px){.nl-form{flex-direction:column;}.news{padding:44px 24px;}}

/* contact form (posts to Formspree) */
.contact-wrap{max-width:640px;}
.contact-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:32px 32px 34px;}
.cf-row{display:flex;gap:16px;}
.cf-field{display:flex;flex-direction:column;gap:7px;margin-bottom:16px;flex:1;}
.cf-field > span{font-family:"IBM Plex Mono",monospace;font-size:12px;letter-spacing:0.06em;text-transform:uppercase;color:var(--ink-3);}
.cf-field input,.cf-field textarea{width:100%;background:var(--paper);border:1px solid var(--line);color:var(--ink);border-radius:calc(var(--radius) - 4px);padding:12px 14px;font-family:"IBM Plex Sans",sans-serif;font-size:15.5px;outline:none;transition:border-color .14s ease;}
.cf-field input::placeholder,.cf-field textarea::placeholder{color:var(--ink-3);}
.cf-field input:focus,.cf-field textarea:focus{border-color:var(--accent);}
.cf-field input.err,.cf-field textarea.err{border-color:#e0564f;}
.cf-field textarea{resize:vertical;min-height:130px;line-height:1.5;}
.cf-hp{position:absolute !important;left:-9999px !important;width:1px;height:1px;opacity:0;}
.cf-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin-top:4px;}
.cf-note{font-size:13.5px;color:var(--ink-3);}
.cf-note a{color:var(--accent);font-weight:600;}
.cf-ok,.cf-err{display:none;margin-top:18px;border-radius:calc(var(--radius) - 4px);padding:14px 16px;font-size:15px;line-height:1.5;}
.cf-ok{background:rgba(40,160,70,0.08);border:1px solid rgba(40,160,70,0.35);color:#1c6b32;}
.cf-err{background:rgba(211,47,47,0.07);border:1px solid rgba(211,47,47,0.3);color:#b9281f;}
.cf-err a{color:#b9281f;font-weight:600;text-decoration:underline;}
.cf-ok.show,.cf-err.show{display:block;animation:fade .3s ease;}
@media(max-width:560px){.cf-row{flex-direction:column;gap:0;}.contact-card{padding:24px 20px 26px;}}

/* ---------- premium ---------- */
.tier-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:36px;}
.billing{display:flex;align-items:center;gap:10px;font-family:"IBM Plex Mono",monospace;font-size:13px;color:var(--ink-2);}
.switch{width:46px;height:26px;border-radius:999px;background:var(--ink);border:none;cursor:pointer;position:relative;padding:0;flex:none;}
.switch i{position:absolute;top:3px;left:3px;width:20px;height:20px;border-radius:50%;background:#fff;transition:left .18s ease;}
.switch.annual i{left:23px;}
.billing .save{color:var(--accent);}
.tiers{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.tier{border:1px solid var(--line);border-radius:var(--radius);padding:32px 30px;background:var(--card);display:flex;flex-direction:column;}
.tier.pro{background:var(--dark);color:#fff;border-color:var(--dark);position:relative;}
.tier .badge{font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:0.08em;text-transform:uppercase;color:var(--accent);}
.tier.pro .badge{color:#ff9b94;}
.tier h3{font-size:23px;margin:10px 0 4px;}
.tier .price{font-family:"Space Grotesk";font-size:40px;font-weight:600;letter-spacing:-0.02em;margin:14px 0 2px;}
.tier .price small{font-family:"IBM Plex Mono";font-size:14px;font-weight:400;color:var(--ink-3);}
.tier.pro .price small{color:rgba(255,255,255,0.5);}
.tier .pdesc{color:var(--ink-2);font-size:15px;min-height:42px;}
.tier.pro .pdesc{color:rgba(255,255,255,0.6);}
.tier ul{list-style:none;padding:0;margin:22px 0 26px;display:flex;flex-direction:column;gap:13px;}
.tier li{display:flex;gap:11px;align-items:flex-start;font-size:15px;color:var(--ink-2);}
.tier.pro li{color:rgba(255,255,255,0.82);}
.tier li .chk{color:var(--accent);flex:none;margin-top:2px;}
.tier .cta-wrap{margin-top:auto;}
.tier .soon-tag{font-family:"IBM Plex Mono";font-size:11.5px;color:var(--ink-3);text-align:center;margin-top:12px;}
@media(max-width:760px){.tiers{grid-template-columns:1fr;}}

/* ---------- blog list ---------- */
.post-list{display:flex;flex-direction:column;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;}
.post-row{background:var(--card);padding:28px 30px;display:grid;grid-template-columns:120px 1fr auto;gap:24px;align-items:center;transition:background .15s ease;}
.post-row:hover{background:#fbfbfa;}
.post-row .pkind{font-family:"IBM Plex Mono",monospace;font-size:11.5px;color:var(--accent);letter-spacing:0.06em;}
.post-row .pdate{font-family:"IBM Plex Mono",monospace;font-size:11.5px;color:var(--ink-3);margin-top:6px;}
.post-row h3{font-size:19px;line-height:1.3;}
.post-row p{color:var(--ink-2);font-size:15px;margin-top:7px;max-width:46em;}
.post-row .plinks{display:flex;gap:14px;flex-wrap:wrap;}
.post-row .plinks a{font-family:"IBM Plex Sans";font-size:13.5px;font-weight:600;color:var(--accent);white-space:nowrap;}
.post-row .plinks a:hover{text-decoration:underline;}
.post-row.is-soon{opacity:0.62;}
@media(max-width:760px){.post-row{grid-template-columns:1fr;gap:12px;}}

/* ---------- resources ---------- */
.res-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.res-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px 26px 28px;display:flex;flex-direction:column;gap:10px;transition:border-color .15s ease,transform .15s ease;}
.res-card:hover{border-color:rgba(211,47,47,0.3);transform:translateY(-3px);}
.res-card .rtype{font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:0.1em;text-transform:uppercase;color:var(--ink-3);}
.res-card h3{font-size:18px;line-height:1.3;}
.res-card p{color:var(--ink-2);font-size:14.5px;}
.res-card .rfoot{margin-top:auto;padding-top:8px;}
.res-card .rfoot a{font-family:"IBM Plex Sans";font-size:13.5px;font-weight:600;color:var(--accent);}
.res-card .rfoot a:hover{text-decoration:underline;}
.res-card .rsoon{font-family:"IBM Plex Mono";font-size:12px;color:var(--ink-3);}
@media(max-width:860px){.res-grid{grid-template-columns:1fr;}}

/* copyable resource pages (resources/*.html) */
.res-view{max-width:920px;}
.res-view .editor{margin-top:18px;}
.res-view .editor + .editor{margin-top:16px;}
.res-view .editor .bar .fn{font-family:"IBM Plex Mono",monospace;font-size:12px;color:#8b949e;margin-right:auto;}
.res-view .editor pre{max-height:64vh;overflow:auto;}
.copy-btn{font-family:"IBM Plex Mono",monospace;font-size:12px;color:#c9d1d9;background:rgba(255,255,255,0.06);border:1px solid var(--dark-line);border-radius:7px;padding:6px 12px;cursor:pointer;display:inline-flex;align-items:center;gap:7px;transition:background .12s ease,color .12s ease,border-color .12s ease;}
.copy-btn:hover{background:rgba(255,255,255,0.12);color:#fff;}
.copy-btn.copied{color:#28c840;border-color:rgba(40,200,64,0.5);}
.copy-btn svg{display:block;}
.res-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px;}
.res-back{display:inline-block;font-family:"IBM Plex Mono",monospace;font-size:13px;color:var(--ink-3);margin-top:20px;}
.res-back:hover{color:var(--accent);}
.res-note{font-family:"IBM Plex Mono",monospace;font-size:12.5px;color:var(--ink-3);margin-top:16px;}
/* per-command blocks: description (text) + its own copyable editor */
.cmd-group{margin-top:44px;}
.cmd-group:first-of-type{margin-top:8px;}
.cmd-group > .eyebrow{margin-bottom:4px;}
.cmd-block{margin-top:24px;}
.cmd-block .cmd-when{font-family:"IBM Plex Sans",sans-serif;font-weight:600;color:var(--ink);font-size:16.5px;}
.cmd-block .cmd-desc{font-size:15px;color:var(--ink-2);line-height:1.5;margin:3px 0 12px;max-width:60ch;}
.cmd-block .editor{margin-top:0;}
.cmd-block .editor pre{padding:16px 20px;}
/* parameter reference list (non-copyable key → meaning) */
.param-list{margin-top:22px;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;}
.param-list .param{display:grid;grid-template-columns:250px 1fr;gap:18px;padding:14px 20px;border-top:1px solid var(--line-2);align-items:baseline;}
.param-list .param:first-child{border-top:0;}
.param-list .param .pk{font-family:"IBM Plex Mono",monospace;font-size:13.5px;color:var(--accent);}
.param-list .param .pd{font-size:14.5px;color:var(--ink-2);line-height:1.45;}
@media(max-width:640px){.param-list .param{grid-template-columns:1fr;gap:4px;}}

/* ---------- footer ---------- */
footer{background:var(--dark);color:rgba(255,255,255,0.62);padding:62px 0 38px;}
.foot-top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;}
.foot-brand .fb-lockup{display:inline-flex;align-items:center;gap:12px;}
.foot-brand img{width:44px;height:44px;border-radius:10px;}
.foot-brand .fb-lockup span{font-family:"Space Grotesk",sans-serif;font-weight:600;font-size:18px;color:#fff;letter-spacing:-0.01em;}
.foot-brand p{margin-top:18px;font-size:14.5px;max-width:30em;color:rgba(255,255,255,0.5);line-height:1.65;}
.foot-col h5{font-family:"IBM Plex Mono";font-size:11.5px;letter-spacing:0.1em;text-transform:uppercase;color:rgba(255,255,255,0.4);margin:0 0 14px;font-weight:500;}
.foot-col a{display:block;font-size:14.5px;padding:5px 0;color:rgba(255,255,255,0.68);transition:color .12s ease;}
.foot-col a:hover{color:#fff;}
.foot-bot{display:flex;justify-content:space-between;align-items:center;margin-top:48px;padding-top:24px;border-top:1px solid var(--dark-line);font-family:"IBM Plex Mono";font-size:12.5px;color:rgba(255,255,255,0.4);gap:16px;flex-wrap:wrap;}
@media(max-width:760px){.foot-top{grid-template-columns:1fr 1fr;gap:30px;}}

/* ---------- mobile nav ---------- */
.nav-burger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px;margin-left:6px;}
.nav-burger span{width:22px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s ease,opacity .2s ease;}
.nav.open .nav-burger span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav.open .nav-burger span:nth-child(2){opacity:0;}
.nav.open .nav-burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.nav-cta-m{display:none;}
@media(max-width:860px){
  .nav-burger{display:flex;}
  .nav .wrap > .btn--red{display:none;}
  .nav nav{display:none;position:absolute;top:70px;left:0;right:0;flex-direction:column;gap:0;margin:0;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:0 16px 30px -22px rgba(22,23,26,0.5);padding:6px 0 12px;}
  .nav.open nav{display:flex;}
  .nav nav a{padding:13px 28px;font-size:16px;}
  .nav-cta-m{display:block;margin:8px 28px 2px;background:var(--accent);color:#fff !important;border-radius:calc(var(--radius) - 4px);text-align:center;padding:13px;font-weight:600;}
}

/* ---------- motion ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .62s cubic-bezier(.22,1,.36,1),transform .62s cubic-bezier(.22,1,.36,1);will-change:opacity,transform;}
.reveal.in{opacity:1;transform:none;}

/* Hero entrance. Base state is VISIBLE (no opacity:0 declared). The animation's
   0% keyframe holds the hidden start; with fill-mode `forwards` + a tiny non-zero
   delay, a clock frozen at t=0 sits in the pre-delay phase and renders the visible
   base style — so print, PDF, and capture contexts show content, while real
   browsers still play the fade-up. */
@media (prefers-reduced-motion: no-preference){
  .hero .eyebrow,.hero h1,.hero .lede,.hero .cta,.hero .trust,.hero .htags,.hero .editor,
  .page-hero .eyebrow,.page-hero h1,.page-hero .lede{
    animation:heroUp .7s cubic-bezier(.22,1,.36,1) .04s forwards;
  }
  .hero .lede{animation-delay:.12s;}
  .hero .cta{animation-delay:.20s;}
  .hero .trust{animation-delay:.28s;}
  .hero .htags{animation-delay:.34s;}
  .hero .editor{animation-delay:.16s;}
}
@keyframes heroUp{from{opacity:0;transform:translateY(20px);}to{opacity:1;transform:none;}}

@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1 !important;transform:none !important;transition:none !important;}
}