/* ============================================================
   CIRCLE BRIDGE TECHNOLOGIES — v4
   Themed token system. Dark is default, light is a full parallel set.
   ============================================================ */

/* ---------- brand constants, never themed ---------- */
:root{
  --navy:#101A3A;
  --violet:#7057FF;
  --cyan:#21C7D9;
  --paper:#F7F9FC;
  --ink:#202638;
}

/* ---------- DARK (default) ---------- */
:root,
[data-theme="dark"]{
  --bg:#080E22;
  --surface:#0D1531;
  --surface-hi:#111C40;
  --text:#F7F9FC;
  --dim:rgba(247,249,252,.80);      /* body copy, ~10:1 on --bg */
  --dimmer:rgba(247,249,252,.62);   /* small labels, ~6.5:1 on --bg */
  --line:rgba(247,249,252,.16);
  --line-hot:rgba(247,249,252,.32);
  --hot:#3ED8E8;                    /* cyan lifted for text contrast */
  --grid-line:rgba(247,249,252,.03);
  --mast-bg:rgba(8,14,34,.82);
  --btn-bg:#21C7D9;
  --btn-fg:#101A3A;
  --accent:#8A76FF;      /* violet, lifted for small text on dark */

  /* schematic */
  --sc-grid:rgba(247,249,252,.05);
  --sc-hair:rgba(247,249,252,.34);
  --sc-deck:#3ED8E8;
  --sc-tower:rgba(247,249,252,.82);
  --sc-cable:rgba(247,249,252,.34);
  --sc-ring:rgba(247,249,252,.4);
  --sc-pill-fill:rgba(13,21,49,.9);
  --sc-pill-stroke:rgba(247,249,252,.5);
  --dot-fill:#080E22;
  --dot-stroke:rgba(247,249,252,.72);
  --chord:rgba(247,249,252,.26);

  /* the one contrasting band flips the other way */
  --inv-bg:#F7F9FC;
  --inv-text:#202638;
  --inv-dim:rgba(32,38,56,.75);
  --inv-dimmer:rgba(32,38,56,.70);
  --inv-line:rgba(16,26,58,.2);
  --inv-hot:#0E7A87;
}

/* ---------- LIGHT ---------- */
[data-theme="light"]{
  --bg:#F7F9FC;
  --surface:#FFFFFF;
  --surface-hi:#EEF3FA;
  --text:#202638;
  --dim:rgba(32,38,56,.80);
  --dimmer:rgba(32,38,56,.70);
  --line:rgba(16,26,58,.16);
  --line-hot:rgba(16,26,58,.34);
  --hot:#0E7A87;
  --grid-line:rgba(16,26,58,.045);
  --mast-bg:rgba(247,249,252,.85);
  --btn-bg:#101A3A;
  --btn-fg:#F7F9FC;
  --accent:#5334D6;      /* violet, deepened for small text on light */

  --sc-grid:rgba(16,26,58,.05);
  --sc-hair:rgba(16,26,58,.28);
  --sc-deck:#101A3A;
  --sc-tower:rgba(16,26,58,.7);
  --sc-cable:rgba(16,26,58,.3);
  --sc-ring:rgba(16,26,58,.32);
  --sc-pill-fill:#FFFFFF;
  --sc-pill-stroke:rgba(16,26,58,.45);
  --dot-fill:#FFFFFF;
  --dot-stroke:rgba(16,26,58,.6);
  --chord:rgba(16,26,58,.22);

  --inv-bg:#101A3A;
  --inv-text:#F7F9FC;
  --inv-dim:rgba(247,249,252,.80);
  --inv-dimmer:rgba(247,249,252,.62);
  --inv-line:rgba(247,249,252,.2);
  --inv-hot:#3ED8E8;
}

/* ---------- layout constants ---------- */
:root{
  --display:"Archivo",system-ui,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,monospace;
  --shell:1200px;
  --gutter:clamp(18px,4.4vw,52px);
  --bay:clamp(62px,7.5vw,100px);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--mono);font-size:.92rem;line-height:1.62;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
  transition:background .3s ease,color .3s ease;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(var(--grid-line) 1px,transparent 1px),
    linear-gradient(90deg,var(--grid-line) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(ellipse 120% 90% at 50% 0%,#000 20%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 120% 90% at 50% 0%,#000 20%,transparent 78%);
}
main,header,footer{position:relative;z-index:1}
img,svg{display:block;max-width:100%}
a{color:inherit}
.shell{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter)}

h1,h2,h3{font-family:var(--display);font-weight:650;font-variation-settings:"wdth" 110;letter-spacing:-.025em;line-height:1.03;margin:0;text-wrap:balance;color:var(--text)}
h2{font-size:clamp(1.75rem,1rem + 2.4vw,2.6rem)}
h3{font-size:1rem;letter-spacing:-.008em;font-variation-settings:"wdth" 104;line-height:1.3}
p{margin:0 0 .85rem}
p:last-child{margin-bottom:0}

.tag{font-family:var(--mono);font-size:.70rem;font-weight:500;letter-spacing:.18em;text-transform:uppercase}
.eyebrow{display:flex;align-items:center;gap:.6rem;color:var(--hot);margin:0 0 1.3rem}
.eyebrow::before{content:"//";color:var(--accent);letter-spacing:0}
.lede{font-family:var(--display);font-weight:400;font-variation-settings:"wdth" 100;font-size:clamp(1rem,.95rem + .35vw,1.14rem);line-height:1.55;color:var(--dim);max-width:48ch;letter-spacing:-.005em}

:focus-visible{outline:1.5px solid var(--violet);outline-offset:3px}
.skip{position:absolute;left:-9999px;top:0;z-index:100;background:var(--violet);color:#fff;padding:.75rem 1.1rem}
.skip:focus{left:12px;top:12px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

.btn{display:inline-flex;align-items:center;gap:.55rem;font-family:var(--mono);font-size:.7rem;font-weight:500;letter-spacing:.13em;text-transform:uppercase;text-decoration:none;padding:.85rem 1.3rem;border:1px solid;border-radius:0;cursor:pointer;transition:background .2s,color .2s,border-color .2s,box-shadow .2s}
.btn-go{background:var(--btn-bg);border-color:var(--btn-bg);color:var(--btn-fg)}
.btn-go:hover{background:var(--violet);border-color:var(--violet);color:#F7F9FC;box-shadow:0 0 24px rgba(112,87,255,.35)}
.btn-line{background:transparent;border-color:var(--line-hot);color:var(--text)}
.btn-line:hover{border-color:var(--hot);color:var(--hot)}
.btn .arw{transition:transform .2s}
.btn:hover .arw{transform:translateX(3px)}

/* ---------- status strip ---------- */
.strip{border-bottom:1px solid var(--line);background:var(--bg);font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;color:var(--dimmer)}
.strip-in{display:flex;align-items:center;gap:1.3rem;height:32px;overflow:hidden;white-space:nowrap}
.strip-in span{display:inline-flex;align-items:center;gap:.5rem}
.sep{opacity:.4}
.live{width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 0 rgba(33,199,217,.6);animation:pulse 2.4s infinite;flex:none}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(33,199,217,.55)}70%{box-shadow:0 0 0 7px rgba(33,199,217,0)}100%{box-shadow:0 0 0 0 rgba(33,199,217,0)}}
.strip-r{margin-left:auto}
@media (max-width:760px){.strip-hide{display:none}}

/* ---------- masthead ---------- */
.masthead{position:sticky;top:0;z-index:60;background:var(--mast-bg);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line);transition:background .3s ease}
.mast-in{display:flex;align-items:center;justify-content:space-between;gap:.7rem;height:64px}
.wordmark{display:flex;align-items:center;gap:.6rem;text-decoration:none;flex:none;color:var(--text)}
.wm-txt{font-family:var(--display);font-weight:700;font-variation-settings:"wdth" 104;font-size:.85rem;line-height:1}
.wm-txt b{color:var(--hot)}
.nav{display:flex;align-items:center;gap:1.7rem;margin-left:auto}
.nav a{font-size:.70rem;font-weight:500;letter-spacing:.14em;text-transform:uppercase;text-decoration:none;color:var(--dim);position:relative;padding:.25rem 0;transition:color .2s}
.nav a::after{content:"";position:absolute;left:0;bottom:-1px;width:0;height:1px;background:var(--hot);transition:width .25s}
.nav a:hover{color:var(--text)}
.nav a:hover::after{width:100%}
.mast-r{display:flex;align-items:center;gap:.5rem;flex:none}
.mast-cta{padding:.65rem 1.05rem}

/* theme toggle */
.theme{
  display:inline-flex;align-items:center;gap:.45rem;
  border:1px solid var(--line-hot);background:transparent;color:var(--dim);
  font-family:var(--mono);font-size:.655rem;font-weight:500;letter-spacing:.13em;text-transform:uppercase;
  padding:.6rem .72rem;cursor:pointer;transition:color .2s,border-color .2s;
}
.theme:hover{color:var(--text);border-color:var(--hot)}
.theme svg{width:13px;height:13px;flex:none}
[data-theme="dark"] .ico-sun{display:none}
[data-theme="light"] .ico-moon{display:none}
@media (max-width:420px){.theme-txt{display:none}}

.burger{display:none;width:40px;height:40px;border:1px solid var(--line-hot);background:transparent;cursor:pointer;padding:0;place-items:center}
.burger i{display:block;width:16px;height:1.4px;background:var(--text);position:relative;transition:background .2s}
.burger i::before,.burger i::after{content:"";position:absolute;left:0;width:16px;height:1.4px;background:var(--text);transition:transform .25s}
.burger i::before{top:-5px}.burger i::after{top:5px}
.burger[aria-expanded="true"] i{background:transparent}
.burger[aria-expanded="true"] i::before{transform:translateY(5px) rotate(45deg)}
.burger[aria-expanded="true"] i::after{transform:translateY(-5px) rotate(-45deg)}

/* ---------- hero ---------- */
.hero{padding-block:clamp(32px,4.5vw,54px) clamp(44px,6vw,76px)}
.hero-grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:clamp(26px,3.5vw,50px);align-items:center}
.hero h1{font-size:clamp(2.1rem,1.1rem + 3.9vw,3.6rem);font-weight:680;font-variation-settings:"wdth" 106;letter-spacing:-.035em;line-height:1;margin-bottom:1.3rem}
.hero h1 b{display:block;color:var(--hot);font-weight:680}
.cursor{display:inline-block;width:.5ch;height:.76em;background:var(--violet);margin-left:.12em;animation:blink 1.1s steps(2) infinite}
@keyframes blink{0%,49%{opacity:1}50%,100%{opacity:0}}
.hero-actions{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:1.8rem}
.chips{display:flex;flex-wrap:wrap;gap:.4rem;margin-top:2rem;padding-top:1.1rem;border-top:1px solid var(--line)}
.chip{border:1px solid var(--line);padding:.42rem .68rem;font-size:.645rem;letter-spacing:.14em;text-transform:uppercase;color:var(--dim)}
.chip::before{content:"› ";color:var(--accent)}

/* ---------- sector switcher ---------- */
.switch{margin-top:1rem;border:1px solid var(--line);background:var(--surface)}
.switch-bar{display:flex;align-items:center;gap:.5rem;padding:.55rem .78rem;border-bottom:1px solid var(--line);font-size:.645rem;letter-spacing:.15em;text-transform:uppercase;color:var(--dimmer)}
.switch-btns{display:flex;flex-wrap:wrap;gap:1px;background:var(--line)}
.sector{flex:1 1 auto;min-width:104px;background:var(--surface);border:0;color:var(--dim);font-family:var(--mono);font-size:.655rem;font-weight:500;letter-spacing:.12em;text-transform:uppercase;padding:.72rem .5rem;cursor:pointer;transition:background .2s,color .2s}
.sector:hover{background:var(--surface-hi);color:var(--text)}
.sector[aria-pressed="true"]{background:var(--violet);color:#F7F9FC}

/* ---------- schematic ---------- */
.sc-grid{stroke:var(--sc-grid);stroke-width:1}
.sc-hair{stroke:var(--sc-hair);stroke-width:1;fill:none}
.sc-deck{stroke:var(--sc-deck);stroke-width:2.2;fill:none;stroke-linecap:square}
.sc-tower{stroke:var(--sc-tower);stroke-width:1.8;fill:none}
.sc-cable{stroke:var(--sc-cable);stroke-width:.8;fill:none}
.sc-ring{stroke:var(--sc-ring);stroke-width:1;fill:none;stroke-dasharray:2 7}
.sc-lb{font-family:var(--mono);font-size:9.6px;letter-spacing:1.5px;fill:var(--dim);text-transform:uppercase}
.sc-lb-hot{fill:var(--hot);opacity:.95}
.sc-pill{fill:var(--sc-pill-fill);stroke:var(--sc-pill-stroke);stroke-width:1}
.sc-pt{font-family:var(--mono);font-size:9.2px;letter-spacing:1.1px;fill:var(--text)}
.swap{transition:opacity .22s ease}
.swap.out{opacity:0}
.member .chord{stroke:var(--chord);stroke-width:.85;transition:stroke .22s,stroke-width .22s}
.member .dot{fill:var(--dot-fill);stroke:var(--dot-stroke);stroke-width:1.4;transition:fill .22s,stroke .22s}
.member{cursor:crosshair}
.member:hover .chord{stroke:var(--violet);stroke-width:1.6}
.member:hover .dot{fill:var(--violet);stroke:var(--violet)}
.sc-hub{fill:var(--violet)}
.sc-node{fill:var(--cyan)}
.sc-packet{fill:var(--cyan)}
.sc-packet.v{fill:var(--violet)}

/* ---------- sections ---------- */
.bay{padding-block:var(--bay);border-top:1px solid var(--line)}
.bay-head{max-width:52ch;margin-bottom:clamp(30px,3.6vw,44px)}
.bay-head h2{margin-bottom:.8rem}

.mods{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.mod{background:var(--surface);padding:1.65rem 1.35rem 1.85rem;position:relative;transition:background .25s}
.mod:hover{background:var(--surface-hi)}
.mod::after{content:"";position:absolute;top:0;left:0;width:9px;height:9px;border-top:1px solid var(--hot);border-left:1px solid var(--hot);opacity:0;transition:opacity .25s}
.mod:hover::after{opacity:1}
.mod-k{display:block;color:var(--accent);margin-bottom:1.1rem;font-size:.66rem}
.mod h3{margin-bottom:.5rem}
.mod p{color:var(--dim);font-size:.865rem;line-height:1.58;margin:0}

/* four across, always */
.secs{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.sec{background:var(--surface);padding:1.3rem 1.1rem;transition:background .22s}
.sec:hover{background:var(--surface-hi)}
.sec .tag{color:var(--hot);font-size:.645rem;display:block;margin-bottom:.55rem}
.sec p{color:var(--dim);font-size:.845rem;line-height:1.5;margin:0}
.sec-note{margin-top:1.4rem;color:var(--dimmer);font-size:.835rem}

.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(26px,3.6vw,56px);align-items:start}
.rails{border-top:1px solid var(--line)}
.rail{display:grid;grid-template-columns:76px 1fr;gap:1rem;padding:1.05rem 0;border-bottom:1px solid var(--line);align-items:baseline}
.rail-k{color:var(--hot);font-size:.66rem;letter-spacing:.16em;text-transform:uppercase}
.rail h3{font-size:.94rem;margin-bottom:.22rem}
.rail p{color:var(--dim);font-size:.855rem;line-height:1.55;margin:0}

.console{border:1px solid var(--line);background:var(--surface);margin-top:1.6rem}
.console-bar{display:flex;align-items:center;gap:.5rem;padding:.55rem .8rem;border-bottom:1px solid var(--line);font-size:.645rem;letter-spacing:.14em;text-transform:uppercase;color:var(--dimmer)}
.console-bar .live{width:5px;height:5px}
.console pre{margin:0;padding:.95rem .9rem 1.05rem;font-size:.765rem;line-height:1.7;overflow-x:auto;color:var(--dim)}
.k{color:var(--hot)}.v{color:var(--text)}.n{color:var(--accent)}.c{color:var(--dimmer)}
.legal{margin-top:1.3rem;padding-left:.9rem;border-left:1px solid var(--violet);color:var(--dim);font-size:.8rem;line-height:1.6}

.svc{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:0 clamp(24px,3.5vw,56px)}
.svc-i{display:grid;grid-template-columns:34px 1fr;gap:.9rem;padding:1rem 0;border-bottom:1px solid var(--line);align-items:baseline}
.svc-i .tag{color:var(--accent);font-size:.66rem}
.svc-i h3{font-size:.93rem;margin-bottom:.18rem}
.svc-i p{color:var(--dim);font-size:.85rem;line-height:1.5;margin:0}

/* the one contrasting band, flips with the theme */
.invert{
  background:var(--inv-bg);
  --text:var(--inv-text);
  --dim:var(--inv-dim);
  --dimmer:var(--inv-dimmer);
  --line:var(--inv-line);
  --hot:var(--inv-hot);
  color:var(--text);
  transition:background .3s ease;
}
.piers{border-top:1px solid var(--line)}
.pier-row{display:grid;grid-template-columns:repeat(5,1fr)}
.pier{padding-right:1.2rem;position:relative}
.pier::before{content:"";position:absolute;left:0;top:0;width:1px;height:26px;background:var(--line-hot)}
.pier::after{content:"";position:absolute;left:-3px;top:23px;width:7px;height:7px;background:var(--violet)}
.pier-n{display:block;margin:42px 0 .55rem;color:var(--dimmer);font-size:.655rem}
.pier h3{font-size:.93rem;margin-bottom:.32rem}
.pier p{color:var(--dim);font-size:.84rem;line-height:1.5;margin:0}

.ip-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.ip-list li{display:grid;grid-template-columns:22px 1fr;gap:.8rem;padding:.9rem 0;border-bottom:1px solid var(--line);font-size:.875rem;color:var(--dim);line-height:1.55;align-items:baseline}
.ip-list li::before{content:"◆";color:var(--hot);font-size:.6rem}
.ip-list b{color:var(--text);font-weight:500}


/* ---------- enquiry form ---------- */
.form{border:1px solid var(--line);background:var(--surface);padding:clamp(18px,2.4vw,26px)}
.form-row{display:grid;gap:14px;grid-template-columns:1fr 1fr}
.field{display:flex;flex-direction:column;gap:.4rem;margin-bottom:14px}
.field label{font-family:var(--mono);font-size:.64rem;font-weight:500;letter-spacing:.16em;
  text-transform:uppercase;color:var(--dimmer)}
.field label .req{color:var(--accent)}
.field input,.field select,.field textarea{
  font-family:var(--mono);font-size:.875rem;color:var(--text);
  background:var(--bg);border:1px solid var(--line-hot);border-radius:0;
  padding:.72rem .8rem;width:100%;transition:border-color .18s,box-shadow .18s;
  -webkit-appearance:none;appearance:none;
}
.field textarea{min-height:118px;resize:vertical;line-height:1.55}
.field select{background-image:linear-gradient(45deg,transparent 50%,var(--dimmer) 50%),
  linear-gradient(135deg,var(--dimmer) 50%,transparent 50%);
  background-position:calc(100% - 17px) 52%,calc(100% - 12px) 52%;
  background-size:5px 5px,5px 5px;background-repeat:no-repeat;padding-right:34px;cursor:pointer}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--hot);box-shadow:0 0 0 2px rgba(33,199,217,.18)}
.field input::placeholder,.field textarea::placeholder{color:var(--dimmer);opacity:1}
.field .err{font-family:var(--mono);font-size:.7rem;color:#FF6B6B;display:none}
.field.bad input,.field.bad textarea,.field.bad select{border-color:#FF6B6B}
.field.bad .err{display:block}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-foot{display:flex;flex-wrap:wrap;align-items:center;gap:.9rem;margin-top:4px}
.form-note{font-family:var(--mono);font-size:.72rem;color:var(--dimmer);line-height:1.5;margin:0}
.form button[type=submit]{border:1px solid var(--btn-bg)}
.form button[disabled]{opacity:.55;cursor:progress}
.form-msg{margin-top:14px;padding:.85rem .95rem;font-family:var(--mono);font-size:.8rem;
  line-height:1.55;display:none}
.form-msg.ok{display:block;background:rgba(33,199,217,.1);border-left:2px solid var(--hot);color:var(--text)}
.form-msg.no{display:block;background:rgba(255,107,107,.1);border-left:2px solid #FF6B6B;color:var(--text)}
@media (max-width:560px){.form-row{grid-template-columns:1fr}}

.detail{display:grid;grid-template-columns:114px 1fr;gap:1rem;padding:.85rem 0;border-bottom:1px solid var(--line);align-items:baseline}
.detail:first-of-type{border-top:1px solid var(--line)}
.detail dt{color:var(--dimmer);font-size:.66rem;letter-spacing:.16em;text-transform:uppercase}
.detail dd{margin:0;font-size:.9rem;color:var(--text)}
.detail dd a{text-decoration:none;border-bottom:1px solid var(--line-hot);transition:color .2s,border-color .2s}
.detail dd a:hover{color:var(--hot);border-color:var(--hot)}

.foot{border-top:1px solid var(--line);padding-block:clamp(34px,4.6vw,52px) 1.4rem;background:var(--bg)}
.foot-top{display:flex;flex-wrap:wrap;gap:1.5rem;justify-content:space-between;align-items:flex-start;padding-bottom:1.8rem;border-bottom:1px solid var(--line)}
.foot-word{font-family:var(--display);font-weight:700;font-variation-settings:"wdth" 106;font-size:.95rem;color:var(--text)}
.foot-word span{display:block;font-family:var(--mono);font-size:.58rem;font-weight:400;letter-spacing:.18em;color:var(--dimmer);text-transform:uppercase;margin-top:.3rem}
.foot-nav{display:flex;flex-wrap:wrap;gap:.5rem 1.6rem}
.foot-nav a{font-size:.675rem;letter-spacing:.14em;text-transform:uppercase;color:var(--dim);text-decoration:none;transition:color .2s}
.foot-nav a:hover{color:var(--hot)}
.foot-base{padding-top:1.2rem;display:flex;flex-wrap:wrap;gap:.5rem 1.4rem;justify-content:space-between;color:var(--dimmer);font-size:.655rem;letter-spacing:.11em}

.rise{opacity:0;transform:translateY(14px);transition:opacity .65s cubic-bezier(.2,.7,.3,1),transform .65s cubic-bezier(.2,.7,.3,1)}
.rise.in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .mods,.secs{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:1000px){
  .hero-grid,.split{grid-template-columns:1fr}
  .hero-grid{gap:36px}
  .sc-wrap{order:2}
  .pier-row{grid-template-columns:1fr 1fr}
  .pier{padding-bottom:1.8rem}
}
@media (max-width:860px){
  .nav{position:fixed;inset:96px 0 auto;flex-direction:column;align-items:stretch;gap:0;background:var(--bg);border-bottom:1px solid var(--line);padding:.4rem var(--gutter) 1.4rem;transform:translateY(-8px);opacity:0;pointer-events:none;transition:opacity .22s,transform .22s;margin-left:0}
  .nav.open{opacity:1;transform:none;pointer-events:auto}
  .nav a{padding:.9rem 0;border-bottom:1px solid var(--line);font-size:.72rem}
  .nav a::after{display:none}
  .mast-cta{display:none}
  .burger{display:grid}
  .mast-in{justify-content:space-between}
}
@media (max-width:600px){
  .mods,.secs{grid-template-columns:1fr}
  .pier-row{grid-template-columns:1fr}
  .pier{padding-right:0}
  .detail,.rail{grid-template-columns:1fr;gap:.25rem}
  .sector{min-width:50%}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important}
  .rise{opacity:1;transform:none}
}