/* ornith.cc - beige tube field recorder */
:root{
  --putty:#d9bfcc;--putty2:#cdafbe;--putty3:#e3cbd6;--hi:#f3e1ea;--edge:#a58493;--edge2:#8d6c7b;
  --ink:#211110;--mut:#483234;--olive:#480f0c;
  --tube:#120906;--tube2:#1d0d09;--ph:#f04b3c;--phd:#bf6258;--pht:#ebbcb9;--line:#521d16;
  --disp:"Jersey 25","Courier New",monospace;--body:"Geologica",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"Inconsolata",ui-monospace,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;scroll-padding-top:92px}
body{margin:0;background:var(--putty);color:var(--ink);font:400 17px/1.65 var(--body);overflow-x:hidden}
img,svg{max-width:100%}
a{color:var(--olive);text-underline-offset:3px}
h1,h2,h3,p,ul,ol,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:3px solid var(--ink);outline-offset:3px;border-radius:4px}
.tube :focus-visible,.bt :focus-visible,.foot :focus-visible,pre :focus-visible{outline-color:var(--ph)}
.skip{position:absolute;left:12px;top:-80px;z-index:99;background:var(--ink);color:var(--ph);padding:12px 18px;border-radius:8px}
.skip:focus{top:12px}
.w{width:100%;max-width:1224px;margin:0 auto;padding:0 28px}

/* ---------- type ---------- */
h1{font:400 clamp(2.7rem,5.4vw,4.7rem)/.92 var(--disp);letter-spacing:.005em;text-wrap:balance;overflow-wrap:break-word}
h2{font:400 clamp(2rem,3.4vw,2.9rem)/1 var(--disp);overflow-wrap:break-word}
h3,.h3{font:600 1.08rem/1.3 var(--body);letter-spacing:-.005em}
.lead{font-size:clamp(1.08rem,1.5vw,1.26rem);line-height:1.55;font-weight:300;color:var(--mut);max-width:62ch;margin-top:22px}
.eyebrow{display:inline-block;font:600 .82rem/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;
  background:var(--tube);color:var(--ph);padding:9px 12px 8px;border-radius:5px;margin-bottom:22px;text-shadow:0 0 8px rgba(240,75,60,.5)}

/* ---------- keycap buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:46px;padding:0 20px;
  font:600 1rem/1.1 var(--mono);letter-spacing:.04em;text-transform:uppercase;text-decoration:none;text-align:center;cursor:pointer;
  color:var(--ink);background:var(--ph);border:2px solid var(--ink);border-radius:9px;
  box-shadow:inset 0 2px 0 rgba(255,255,255,.55),inset 0 -3px 0 rgba(33,17,16,.22),0 4px 0 var(--ink);
  transition:transform .08s,box-shadow .08s,background .15s}
.btn:hover{background:#fb6358}
.btn:active{transform:translateY(3px);box-shadow:inset 0 2px 0 rgba(255,255,255,.4),inset 0 -2px 0 rgba(33,17,16,.2),0 1px 0 var(--ink)}
.btn.big{min-height:56px;padding:0 28px;font-size:1.08rem}
.btn.sm{min-height:44px;padding:0 14px;font-size:.9rem}
.btn.ghost{background:var(--putty3);color:var(--ink)}
.btn.ghost:hover{background:var(--hi)}
.btn[disabled]{opacity:.6;cursor:wait}
.tube .btn,.bt .btn,.foot .btn{border-color:#050a06;box-shadow:inset 0 2px 0 rgba(255,255,255,.5),inset 0 -3px 0 rgba(33,17,16,.25),0 4px 0 #6c1d16}
.tube .btn.ghost,.bt .btn.ghost{background:var(--tube2);color:var(--ph);border-color:var(--ph);box-shadow:0 4px 0 #47150f}
.tube .btn.ghost:hover{background:#29120c}

/* ---------- casing header ---------- */
.case{position:sticky;top:0;z-index:50;background:var(--putty2);border-bottom:2px solid var(--edge2);
  box-shadow:inset 0 2px 0 var(--hi),0 3px 0 rgba(33,17,16,.08)}
.case-in{display:flex;align-items:center;gap:18px;min-height:74px}
.logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font:400 2rem/1 var(--disp);min-height:44px}
.logo .mark{flex:none}
.nav{display:flex;gap:8px;margin-left:auto}
.nav a{display:inline-flex;align-items:center;min-height:44px;padding:0 15px;font:600 .9rem/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;
  text-decoration:none;color:var(--ink);background:var(--putty3);border:1px solid var(--edge2);border-radius:7px;
  box-shadow:inset 0 1px 0 var(--hi),0 3px 0 var(--edge2);transition:transform .08s,box-shadow .08s}
.nav a:hover{background:var(--hi)}
.nav a:active,.nav a[aria-current]{transform:translateY(2px);box-shadow:0 1px 0 var(--edge2)}
.nav a[aria-current]{background:var(--tube);color:var(--ph);border-color:var(--tube);text-shadow:0 0 8px rgba(240,75,60,.6)}
.led{width:10px;height:10px;border-radius:50%;background:var(--ph);border:2px solid var(--ink);box-shadow:0 0 0 3px rgba(240,75,60,.3);flex:none;margin:0 2px 0 8px}
.burger{display:none;width:46px;height:46px;flex:none;padding:0;cursor:pointer;background:var(--putty3);border:1px solid var(--edge2);border-radius:7px;
  box-shadow:inset 0 1px 0 var(--hi),0 3px 0 var(--edge2);flex-direction:column;align-items:center;justify-content:center;gap:5px}
.burger i{display:block;width:20px;height:3px;background:var(--ink)}

/* ---------- bands ---------- */
.band{padding:84px 0;position:relative;box-shadow:inset 0 2px 0 rgba(255,255,255,.45),inset 0 -2px 0 rgba(33,17,16,.14)}
.b1{background:var(--putty)}
.b2{background:var(--putty2)}
.b3{background:var(--putty3)}
.bt{background:var(--tube);color:var(--pht);box-shadow:inset 0 10px 0 var(--edge),inset 0 12px 0 #050a06,inset 0 -10px 0 var(--edge),inset 0 -12px 0 #050a06}
.bt::after,.tube::after{content:"";position:absolute;inset:0;pointer-events:none;z-index:2;
  background:repeating-linear-gradient(0deg,rgba(0,0,0,.26) 0 1px,transparent 1px 4px)}
.bt .w{position:relative;z-index:1}
.top{padding:54px 0 60px}
.sh{display:flex;align-items:center;gap:16px;margin-bottom:38px}
.sh .no{flex:none;font:400 1.5rem/1 var(--disp);background:var(--tube);color:var(--ph);padding:7px 10px 6px;border-radius:6px;text-shadow:0 0 8px rgba(240,75,60,.6)}
.sh h2{min-width:0}
.grille{flex:1;min-width:30px;height:18px;border-radius:3px;
  background:repeating-linear-gradient(90deg,rgba(33,17,16,.5) 0 5px,transparent 5px 14px)}
.bt .sh .no{background:var(--ph);color:var(--tube);text-shadow:none}
.bt .grille{background:repeating-linear-gradient(90deg,rgba(240,75,60,.4) 0 5px,transparent 5px 14px)}
.bt h2{color:var(--ph);text-shadow:0 0 14px rgba(240,75,60,.4)}

/* ---------- tube ---------- */
.tube{position:relative;overflow:hidden;background:radial-gradient(120% 90% at 50% 40%,#210f0a 0,var(--tube) 70%);color:var(--pht);
  border:9px solid #bb9baa;border-radius:30px;
  box-shadow:inset 0 0 0 3px #050a06,inset 0 0 70px rgba(240,75,60,.07),0 2px 0 var(--hi),0 -2px 0 var(--edge2),0 10px 24px -14px rgba(33,17,16,.55)}
.tin{position:relative;z-index:1;padding:26px;min-width:0}
.tube a{color:var(--ph)}
.tbar{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font:400 .86rem/1.3 var(--mono);color:var(--phd);letter-spacing:.04em;margin-bottom:10px}
.tbar span{overflow-wrap:anywhere;min-width:0}
.tl{font:600 .8rem/1 var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--phd);margin-bottom:14px}

/* sonogram */
.sono{display:block;width:100%;height:auto;color:var(--ph)}
.sono path{fill:none;stroke:currentColor;stroke-width:3}
.sono .g{stroke-width:1;opacity:.16}
.sono .h{opacity:.4}
.sono .m{filter:drop-shadow(0 0 4px rgba(240,75,60,.75))}
.hero-s{margin-bottom:14px;border-bottom:1px solid var(--line);border-top:1px solid var(--line)}
.strip{margin-top:44px;opacity:.75}

/* ---------- hero ---------- */
.hero{padding:62px 0 70px}
.hero-g{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.04fr);gap:54px;align-items:center}
.hero-c,.hero-t{min-width:0}
.bul{margin-top:26px;display:grid;gap:11px}
.bul li{position:relative;padding-left:34px;font-weight:500;line-height:1.45}
.bul li::before{content:"";position:absolute;left:0;top:.2em;width:20px;height:16px;
  background:linear-gradient(var(--olive),var(--olive)) 0 100%/4px 6px no-repeat,linear-gradient(var(--olive),var(--olive)) 8px 100%/4px 11px no-repeat,linear-gradient(var(--olive),var(--olive)) 16px 100%/4px 16px no-repeat}
.acts-h{display:flex;flex-wrap:wrap;gap:16px;margin-top:34px}
.hero>.w+.w{margin-top:54px}

/* facts = five channels of one tube */
.chan{display:grid;grid-template-columns:repeat(5,minmax(0,1fr))}
.chan>div{padding:4px 20px 0;border-left:1px dashed var(--line);min-width:0;display:flex;flex-direction:column}
.chan>div:first-child{border-left:0;padding-left:0}
.chan dt{order:2;font:400 .86rem/1.35 var(--mono);color:var(--phd);letter-spacing:.03em;margin-top:8px}
.chan dd{order:1;font:400 clamp(1.7rem,2.6vw,2.5rem)/1 var(--disp);color:var(--ph);text-shadow:0 0 12px rgba(240,75,60,.55);overflow-wrap:anywhere}
.lvl{order:3;display:block;height:8px;margin-top:14px;background:repeating-linear-gradient(90deg,var(--ph) 0 5px,transparent 5px 8px);opacity:.85}
.l1{width:28%}.l2{width:44%}.l3{width:62%}.l4{width:80%}.l5{width:100%}
.t-facts .tin{padding:24px 28px}

/* ---------- moulded panels ---------- */
.pans{display:grid;gap:22px}
.p3{grid-template-columns:repeat(3,minmax(0,1fr))}
.p4{grid-template-columns:repeat(4,minmax(0,1fr))}
.pan{position:relative;min-width:0;background:var(--putty3);border:1px solid var(--edge);border-radius:12px;padding:26px 24px 24px;
  box-shadow:inset 0 2px 0 var(--hi),0 4px 0 var(--edge)}
.b3 .pan{background:var(--putty)}
.pan .pn{display:inline-block;font:400 1.35rem/1 var(--disp);color:var(--ph);background:var(--tube);padding:6px 9px 5px;border-radius:5px;margin-bottom:16px;text-shadow:0 0 8px rgba(240,75,60,.6)}
.pan p{color:var(--mut);font-size:.98rem;margin-top:8px}
.p4 .pan{border-radius:12px 12px 12px 34px}

.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;counter-reset:s}
.steps li{display:flex;gap:18px;padding:6px 30px 6px 0;min-width:0}
.steps li+li{border-left:1px dashed var(--line);padding-left:30px}
.sn{flex:none;font:400 3.4rem/.8 var(--disp);color:var(--ph);text-shadow:0 0 14px rgba(240,75,60,.6);min-width:34px}
.steps h3{color:#f7cdcb}
.steps p{color:var(--pht);font-size:.98rem;margin-top:8px;font-weight:300}
.steps div{min-width:0}

/* ---------- prose ---------- */
.read{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:60px;align-items:start}
.prose{min-width:0;max-width:780px}
.prose.solo{margin:0 auto}
.prose>*+*{margin-top:1.15em}
.prose h2{margin-top:1.7em;padding-top:.5em;border-top:2px solid var(--ink)}
.prose>h2:first-child{margin-top:0}
.prose h3{font-size:1.2rem;margin-top:1.7em}
.prose ul,.prose ol{padding-left:1.4em}
.prose ul{list-style:square}.prose ol{list-style:decimal}
.prose li+li{margin-top:.45em}
.prose li::marker{color:var(--olive);font-weight:600}
.prose strong{font-weight:600}
.prose a{font-weight:500}
.prose :not(pre)>code{font:600 .92em var(--mono);background:var(--tube);color:var(--ph);padding:2px 7px;border-radius:5px;overflow-wrap:anywhere}
.prose table{display:block;max-width:100%;overflow-x:auto;border-collapse:collapse;font-size:.95rem;border:2px solid var(--ink);border-radius:10px;background:var(--hi)}
.prose th,.prose td{padding:11px 16px;text-align:left;vertical-align:top;border-bottom:1px solid var(--edge)}
.prose th{font:600 .82rem/1.3 var(--mono);letter-spacing:.08em;text-transform:uppercase;background:var(--tube);color:var(--ph);white-space:nowrap}
.prose tr:last-child td{border-bottom:0}
.prose blockquote{margin-left:0;margin-right:0;padding:14px 20px;border-left:6px solid var(--olive);background:var(--putty)}
.side{position:sticky;top:104px}
.side p{margin:10px 0 20px}
.side .btn{width:100%}

/* ---------- code ---------- */
pre.code{position:relative;margin:0;padding:20px 22px;overflow-x:auto;max-width:100%;background:var(--tube);color:var(--pht);
  font:400 .93rem/1.6 var(--mono);border:6px solid #bb9baa;border-radius:18px;box-shadow:inset 0 0 0 2px #050a06,0 2px 0 var(--hi),0 -1px 0 var(--edge2);
  tab-size:2;-webkit-overflow-scrolling:touch}
.prose pre.code{margin-top:1.3em}
pre.code code{font:inherit;white-space:pre}
pre.code .k{color:var(--ph);font-weight:600}
pre.code .s{color:#f7a6b1}
pre.code .c{color:#a55b51;font-style:italic}
.copy{display:block;position:sticky;left:0;right:0;margin:-4px 0 10px auto;min-height:44px;min-width:44px;padding:0 12px;cursor:pointer;
  font:600 .78rem/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--ph);background:var(--tube2);border:1px solid var(--ph);border-radius:7px;
  box-shadow:0 3px 0 #47150f}
.copy:hover{background:var(--ph);color:var(--tube)}
.copy:active{transform:translateY(2px);box-shadow:0 1px 0 #47150f}
.codebox{min-width:0}
.codetabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:6px}
.codetabs button{min-height:44px;padding:0 16px;cursor:pointer;font:600 .86rem/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;
  color:var(--phd);background:transparent;border:1px solid var(--line);border-radius:7px}
.codetabs button:hover{color:var(--ph);border-color:var(--ph)}
.codetabs button[aria-selected="true"]{background:var(--ph);color:var(--tube);border-color:var(--ph);box-shadow:0 0 16px rgba(240,75,60,.4)}
.tube pre.code{border:0;border-radius:0;box-shadow:none;background:transparent;padding:14px 0 4px}
.tube .copy{margin:0 0 10px auto}

/* ---------- forms (inside tubes) ---------- */
.key-g{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,480px);gap:0 60px;align-items:start}
.key-f{grid-column:2;grid-row:1/3}
.key-b{grid-column:1;min-width:0}
.keyhero{padding:46px 0 70px}
.key-c,.key-f{min-width:0}
.ben{margin-top:34px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px 30px}
.ben li{padding-top:14px;border-top:2px solid var(--ink);min-width:0}
.ben p{color:var(--mut);font-size:.96rem;margin-top:6px}
.t-form .tin{padding:30px}
.form{min-width:0}
.tabs2{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:0 0 20px;padding:5px;border:1px solid var(--line);border-radius:10px}
.tabs2 button{min-height:44px;cursor:pointer;font:600 .9rem/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--phd);background:transparent;border:0;border-radius:6px}
.tabs2 button.on,.tabs2 button.active,.tabs2 button[aria-selected="true"],.tabs2 button[aria-pressed="true"]{background:var(--ph);color:var(--tube)}
.row{margin-bottom:16px;min-width:0}
.row label,.calc label{display:block;font:600 .8rem/1.2 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--phd);margin-bottom:8px}
.tube input,.tube select,.tube textarea{display:block;width:100%;min-height:50px;padding:10px 14px;font:400 1.05rem/1.4 var(--mono);color:#fbd1d0;
  background:var(--tube2);border:2px solid var(--line);border-radius:8px;caret-color:var(--ph)}
.tube textarea{min-height:140px;resize:vertical}
.tube select{appearance:none;-webkit-appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--ph) 50%),linear-gradient(135deg,var(--ph) 50%,transparent 50%);
  background-position:calc(100% - 20px) 50%,calc(100% - 14px) 50%;background-size:6px 6px;background-repeat:no-repeat;padding-right:40px}
.tube input::placeholder,.tube textarea::placeholder{color:#9a534a}
.tube input:focus,.tube select:focus,.tube textarea:focus{outline:0;border-color:var(--ph);box-shadow:0 0 0 3px rgba(240,75,60,.25),0 0 18px rgba(240,75,60,.25)}
.note{font-size:.86rem;line-height:1.5;color:var(--phd);margin:12px 0}
.tube .note a{color:var(--ph)}
.form .btn[data-submit],form[data-support] button{width:100%;min-height:54px;font-size:1.05rem;margin-top:6px}
form[data-support] button{display:inline-flex;align-items:center;justify-content:center;cursor:pointer;font:600 1.05rem/1.1 var(--mono);letter-spacing:.04em;text-transform:uppercase;
  color:var(--ink);background:var(--ph);border:2px solid #050a06;border-radius:9px;box-shadow:inset 0 2px 0 rgba(255,255,255,.5),inset 0 -3px 0 rgba(33,17,16,.25),0 4px 0 #6c1d16}
form[data-support] button:active{transform:translateY(3px);box-shadow:0 1px 0 #6c1d16}
form[data-support] output,form[data-support] .out,[data-out]{display:block;margin-top:14px;font:400 .95rem/1.5 var(--mono);color:var(--ph)}
.form a.btn.ghost{width:100%;min-height:50px;text-transform:none;letter-spacing:0;font-family:var(--body);font-weight:500}
.msg{font:400 .95rem/1.45 var(--mono);color:var(--ph);margin:0 0 14px}
.msg:empty{display:none}
.msg.err{color:#ffa8fb;border:1px solid #ff66fc;background:rgba(255,70,251,.12);padding:10px 14px;border-radius:8px}
.keyout{display:none}
.keyout.on{display:block}
.keybox{font:600 1.02rem/1.5 var(--mono);color:var(--ph);background:var(--tube2);border:2px dashed var(--ph);border-radius:8px;padding:14px 16px;
  word-break:break-all;text-shadow:0 0 10px rgba(240,75,60,.5);margin:12px 0;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px}
.keybox span{min-width:0;flex:1 1 200px}
.keyout h3{color:var(--ph);font:400 1.8rem/1 var(--disp)}
.keyout code{font-family:var(--mono);color:var(--ph);overflow-wrap:anywhere}
.mut{color:var(--phd)}
.acts{display:flex;flex-wrap:wrap;gap:12px;margin-top:14px}
.keyout p{margin:8px 0;color:var(--pht)}
.sup-g{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,560px);gap:60px;align-items:start}
.sup-g>div{min-width:0}

/* ---------- calculator / pricing ---------- */
.price-g{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:56px;align-items:start}
.price-g>div{min-width:0}
.calc{display:grid;gap:16px;min-width:0}
.calc output{display:block;font:400 clamp(2.4rem,4vw,3.4rem)/1 var(--disp);color:var(--ph);text-shadow:0 0 16px rgba(240,75,60,.6);
  padding-top:18px;margin-top:6px;border-top:1px dashed var(--line);overflow-wrap:anywhere}
.calc p,.calc small,.calc span{color:var(--phd);font-size:.9rem}
.exs{display:grid;gap:18px}
.exs .pan{display:grid;grid-template-columns:auto minmax(0,1fr);column-gap:18px;align-items:start;padding:20px 22px}
.exs .pn{grid-row:1/3;margin:0}
.exs p{grid-column:2}
.top .tube{margin-top:40px}

/* ---------- docs / article ---------- */
.docs-g{display:grid;grid-template-columns:290px minmax(0,1fr);gap:60px;align-items:start}
.stick,.rail{position:sticky;top:104px}
.t-toc{border-width:7px;border-radius:24px}
.t-toc .tin{padding:22px 20px}
.toc{counter-reset:t;display:grid;gap:2px}
.toc li{counter-increment:t}
.toc a{display:flex;gap:10px;align-items:baseline;min-height:44px;padding:9px 0;font:400 .96rem/1.35 var(--mono);color:var(--pht);text-decoration:none;border-bottom:1px dashed var(--line)}
.toc li:last-child a{border-bottom:0}
.toc a::before{content:counter(t,decimal-leading-zero);color:var(--ph);font:400 1.1rem/1 var(--disp);flex:none}
.toc a:hover{color:var(--ph);text-shadow:0 0 8px rgba(240,75,60,.5)}
.art-g{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:64px;align-items:start}
.art-g .rail{grid-column:2;grid-row:1;display:grid;gap:26px}
.art-g .prose{grid-column:1;grid-row:1;font-size:1.06rem;line-height:1.75}
.art-g .side{position:static}
.art-top h1{max-width:20ch}
.meta{margin-top:20px;font:400 .9rem/1 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--mut)}
.take{margin-bottom:2em;font-size:1rem;line-height:1.55}
.take ol{counter-reset:k;margin-top:14px;display:grid;gap:12px;padding:0;list-style:none}
.take li{counter-increment:k;position:relative;padding-left:44px;margin:0}
.take li::before{content:counter(k);position:absolute;left:0;top:0;width:30px;height:28px;display:grid;place-items:center;
  font:400 1.25rem/1 var(--disp);background:var(--tube);color:var(--ph);border-radius:5px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:4px 10px;font:400 .88rem/1.2 var(--mono);letter-spacing:.06em;text-transform:uppercase;margin-bottom:22px;color:var(--mut)}
.crumbs a{display:inline-flex;align-items:center;min-height:44px;color:var(--olive)}
.crumbs i{font-style:normal;color:var(--edge2)}

/* ---------- faq ---------- */
.faq{display:grid;gap:12px;max-width:940px}
.faq details{background:var(--putty3);border:1px solid var(--edge);border-radius:10px;box-shadow:inset 0 2px 0 var(--hi),0 3px 0 var(--edge)}
.faq summary{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:60px;padding:14px 18px 14px 22px;cursor:pointer;list-style:none;font-weight:600;font-size:1.04rem;line-height:1.35}
.faq summary::-webkit-details-marker{display:none}
.faq summary span{min-width:0}
.faq summary i{flex:none;width:34px;height:30px;border-radius:6px;background:var(--tube);position:relative}
.faq summary i::before,.faq summary i::after{content:"";position:absolute;left:10px;top:13px;width:14px;height:4px;background:var(--ph)}
.faq summary i::after{transform:rotate(90deg)}
.faq details[open] summary i::after{display:none}
.faq details p{padding:0 22px 20px;color:var(--mut);max-width:76ch}

/* ---------- cta band / footer / 404 ---------- */
.cta{padding:80px 0 60px}
.cta-in{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-in>div{min-width:0}
.cta h2{font-size:clamp(2.3rem,4.4vw,3.8rem)}
.cta p{margin-top:12px;color:var(--pht);font-weight:300;max-width:56ch}
.foot{background:var(--putty2);border-top:2px solid var(--edge2);box-shadow:inset 0 2px 0 var(--hi);padding:48px 0 34px;font-size:.95rem}
.foot-g{display:flex;flex-wrap:wrap;gap:28px 48px;align-items:center;justify-content:space-between}
.foot-b p{color:var(--mut);margin-top:6px}
.foot-l{display:flex;flex-wrap:wrap;gap:0 22px}
.foot-l a{display:inline-flex;align-items:center;min-height:44px;font:600 .88rem/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ink)}
.foot .btn{border-color:var(--ink);box-shadow:inset 0 2px 0 rgba(255,255,255,.55),inset 0 -3px 0 rgba(33,17,16,.22),0 4px 0 var(--ink)}
.legal{margin-top:28px;padding-top:20px;border-top:1px dashed var(--edge2);color:var(--mut);font-size:.86rem;line-height:1.55}
.nf .tube{max-width:900px;margin:0 auto}
.nf-c{max-width:900px;margin:44px auto 0}

@media (prefers-reduced-motion:no-preference){
  .led{animation:led 2.4s steps(2,end) infinite}
  @keyframes led{50%{box-shadow:0 0 0 3px rgba(240,75,60,0)}}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}

/* ---------- responsive ---------- */
@media (max-width:1100px){
  .nav a{padding:0 11px;font-size:.84rem}
  .hero-g{gap:36px}
  .p4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .read,.art-g{grid-template-columns:minmax(0,1fr) 280px;gap:40px}
  .docs-g{grid-template-columns:250px minmax(0,1fr);gap:40px}
}
@media (max-width:940px){
  .burger{display:flex;order:3}
  .led{display:none}
  .btn.key{margin-left:auto;order:2}
  .nav{display:none;position:absolute;left:0;right:0;top:100%;margin:0;padding:16px 20px 22px;flex-direction:column;gap:10px;
    background:var(--putty2);border-bottom:2px solid var(--edge2);box-shadow:0 14px 24px -12px rgba(33,17,16,.5)}
  .nav.open{display:flex}
  .nav a{min-height:48px;font-size:.95rem}
  .hero-g,.key-g,.sup-g,.price-g,.read,.docs-g,.art-g{grid-template-columns:minmax(0,1fr)}
  .art-g .rail,.art-g .prose{grid-column:1;grid-row:auto}
  .rail,.side{position:static}
  .stick{position:relative;top:auto}
  .p3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:minmax(0,1fr);gap:22px}
  .steps li,.steps li+li{border-left:0;padding:0}
  .steps li+li{border-top:1px dashed var(--line);padding-top:22px}
  .chan{grid-template-columns:minmax(0,1fr)}
  .chan>div,.chan>div:first-child{flex-direction:row;align-items:baseline;justify-content:space-between;gap:16px;padding:12px 0;border-left:0;border-top:1px dashed var(--line)}
  .chan>div:first-child{border-top:0;padding-top:0}
  .chan dt{order:1;margin:0}
  .chan dd{order:2;text-align:right;font-size:1.9rem}
  .lvl{display:none}
  .band{padding:60px 0}
  .key-g{gap:30px}
  .key-f,.key-b{grid-column:1;grid-row:auto}
  .keyhero{padding:30px 0 56px}
  .ben{margin-top:14px}
  .key-c .lead{margin-bottom:0}
}
@media (max-width:620px){
  body{font-size:16px}
  .w{padding:0 16px}
  .case-in{min-height:64px;gap:10px}
  .logo{font-size:1.7rem;gap:8px}
  .logo .mark{width:30px;height:30px}
  .btn.key{min-height:44px;padding:0 11px;font-size:.84rem;letter-spacing:.02em}
  .p3,.p4,.ben{grid-template-columns:minmax(0,1fr)}
  .tube{border-width:6px;border-radius:22px}
  .tin,.t-form .tin,.t-facts .tin{padding:18px 16px}
  .band{padding:48px 0}
  .hero{padding:34px 0 48px}
  .top{padding:30px 0 44px}
  .sh{margin-bottom:26px;gap:12px}
  .acts-h .btn{width:100%}
  .cta-b,.cta-b .btn{width:100%}
  pre.code{padding:16px;border-width:5px;border-radius:14px;font-size:.86rem}
  .exs .pan{grid-template-columns:minmax(0,1fr)}
  .exs .pn{grid-row:auto;justify-self:start;margin-bottom:10px}
  .exs p{grid-column:1}
  .faq summary{padding-left:16px;font-size:1rem}
  .faq details p{padding:0 16px 18px}
  .foot-g{flex-direction:column;align-items:flex-start}
  .foot .btn{width:100%}
}
@media (max-width:380px){
  .logo span{font-size:1.5rem}
  .btn.key{padding:0 8px;font-size:.78rem}
}
.prose .take h2{border:0;padding:0;margin:0;font:600 1.08rem/1.3 var(--body)}