/* ==========================================================================
   OptInfra.co — design system

   Dark-first. The bare :root block IS the dark palette (the design's home);
   the two light blocks below redefine the same tokens — one for viewers whose
   OS asks for light, one for an explicit toggle. Nothing outside those three
   blocks names a raw colour, so both themes stay in sync by construction.
   ========================================================================== */

:root{
  color-scheme:dark;

  --bg:        #0B0C0E;
  --bg-2:      #0D0E11;
  --bg-3:      #111318;

  --ink:       #FAFBFD;
  --ink-2:     rgba(250,251,253,.66);
  --ink-3:     rgba(250,251,253,.42);
  --ink-4:     rgba(250,251,253,.24);

  --line:      rgba(250,251,253,.11);
  --line-2:    rgba(250,251,253,.06);
  --line-3:    rgba(250,251,253,.20);

  --surface:   rgba(250,251,253,.024);
  --surface-2: rgba(250,251,253,.05);

  --ok:        #4ADE80;
  --on-ink:    #062012;
  --warn:      #F5B544;
  --cell:      rgba(250,251,253,.055);
  --cell-on:   rgba(74,222,128,.82);
  --cell-glow: 0 0 9px -3px rgba(74,222,128,.5);

  --nav-bg:    rgba(11,12,14,.52);
  --nav-bg-2:  rgba(11,12,14,.86);
  --menu-bg:   rgba(9,10,12,.97);
  --modal-bg:  rgba(6,7,9,.66);

  --scrim:     11,12,14;
  --vig:       0,0,0;
  --vig-a1:    .55;
  --vig-a2:    .5;
  --grain-a:   .14;

  /* the floating card inverts against the page: bright on dark, dark on light */
  --card-1:    #F7F8FA;
  --card-2:    #E7E9ED;
  --card-3:    #D9DCE2;
  --card-ink:  #0B0C0E;
  --card-ink-2:#4A4F58;
  --card-ink-3:#8A9099;
  --card-line: rgba(0,0,0,.12);
  --card-inset:rgba(255,255,255,.6);
  --card-ring: rgba(255,255,255,.14);
  --card-shadow:0 40px 80px -26px rgba(0,0,0,.75);

  --sans: "SF Pro Display", -apple-system, BlinkMacSystemFont, "Inter",
          "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: "SF Mono", ui-monospace, SFMono-Regular, "JetBrains Mono",
          "Roboto Mono", Menlo, Consolas, monospace;

  --wrap: 1260px;
  --pad:  40px;
  --ease: cubic-bezier(.22,.61,.24,1);
  --ease-out: cubic-bezier(.16,1,.3,1);
  --nav-h: 58px;
}

/* --- light: OS preference, unless the toggle has explicitly said dark --- */
@media (prefers-color-scheme: light){
  :root:not([data-theme="dark"]){
    color-scheme:light;
    --bg:#F3F4F1; --bg-2:#EDEEEA; --bg-3:#FFFFFF;
    --ink:#0D1110;
    --ink-2:rgba(13,17,16,.72);
    --ink-3:rgba(13,17,16,.50);
    --ink-4:rgba(13,17,16,.30);
    --line:rgba(13,17,16,.15);
    --line-2:rgba(13,17,16,.08);
    --line-3:rgba(13,17,16,.28);
    --surface:rgba(13,17,16,.028);
    --surface-2:rgba(13,17,16,.055);
    --ok:#15803D; --on-ink:#F3F4F1; --warn:#A65B0B;
    --cell:rgba(13,17,16,.07);
    --cell-on:#1B9E4B;
    --cell-glow:0 0 9px -3px rgba(21,128,61,.45);
    --nav-bg:rgba(243,244,241,.6);
    --nav-bg-2:rgba(243,244,241,.9);
    --menu-bg:rgba(243,244,241,.97);
    --modal-bg:rgba(13,17,16,.34);
    --scrim:243,244,241;
    --vig:255,255,255; --vig-a1:.42; --vig-a2:.38;
    --grain-a:.05;
    --card-1:#15181C; --card-2:#0F1215; --card-3:#0A0C0E;
    --card-ink:#FAFBFD; --card-ink-2:#AEB4BE; --card-ink-3:#787E88;
    --card-line:rgba(255,255,255,.14);
    --card-inset:rgba(255,255,255,.09);
    --card-ring:rgba(0,0,0,.2);
    --card-shadow:0 34px 70px -28px rgba(13,17,16,.4);
  }
}

/* --- light: explicit toggle, beats a dark OS --- */
:root[data-theme="light"]{
  color-scheme:light;
  --bg:#F3F4F1; --bg-2:#EDEEEA; --bg-3:#FFFFFF;
  --ink:#0D1110;
  --ink-2:rgba(13,17,16,.72);
  --ink-3:rgba(13,17,16,.50);
  --ink-4:rgba(13,17,16,.30);
  --line:rgba(13,17,16,.15);
  --line-2:rgba(13,17,16,.08);
  --line-3:rgba(13,17,16,.28);
  --surface:rgba(13,17,16,.028);
  --surface-2:rgba(13,17,16,.055);
  --ok:#15803D; --on-ink:#F3F4F1; --warn:#A65B0B;
  --cell:rgba(13,17,16,.07);
  --cell-on:#1B9E4B;
  --cell-glow:0 0 9px -3px rgba(21,128,61,.45);
  --nav-bg:rgba(243,244,241,.6);
  --nav-bg-2:rgba(243,244,241,.9);
  --menu-bg:rgba(243,244,241,.97);
  --modal-bg:rgba(13,17,16,.34);
  --scrim:243,244,241;
  --vig:255,255,255; --vig-a1:.42; --vig-a2:.38;
  --grain-a:.05;
  --card-1:#15181C; --card-2:#0F1215; --card-3:#0A0C0E;
  --card-ink:#FAFBFD; --card-ink-2:#AEB4BE; --card-ink-3:#787E88;
  --card-line:rgba(255,255,255,.14);
  --card-inset:rgba(255,255,255,.09);
  --card-ring:rgba(0,0,0,.2);
  --card-shadow:0 34px 70px -28px rgba(13,17,16,.4);
}

/* ---------- reset ---------- */
*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; font-size:16px; }
html,body{ margin:0; padding:0; }
body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:1rem;
  line-height:1.55;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
  text-rendering:optimizeLegibility;
  transition:background .5s var(--ease), color .5s var(--ease);
}
img,svg,canvas{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
button{ font:inherit; color:inherit; background:none; border:0; cursor:pointer; }
ul,ol{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4,p{ margin:0; }
[hidden]{ display:none !important; }
::selection{ background:var(--ink); color:var(--bg); }

.skip{
  position:fixed; left:-9999px; top:10px; z-index:999;
  background:var(--ink); color:var(--bg); padding:10px 16px; border-radius:4px;
}
.skip:focus{ left:12px; }
:focus-visible{ outline:1px solid var(--ink); outline-offset:3px; }

/* ---------- layout ---------- */
.wrap{ width:100%; max-width:var(--wrap); margin-inline:auto; padding-inline:var(--pad); }
.sec{ position:relative; padding-block:104px; z-index:1; }

/* ---------- background layers ---------- */
#field{ position:fixed; inset:0; width:100vw; height:100vh; z-index:0; pointer-events:none; }
.grain{
  position:fixed; inset:-120%;
  z-index:1; pointer-events:none; opacity:var(--grain-a);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='.42'/%3E%3C/svg%3E");
  mix-blend-mode:overlay;
  animation:grain 6s steps(6) infinite;
}
@keyframes grain{
  0%{transform:translate(0,0)}    16%{transform:translate(-2%,-3%)}
  33%{transform:translate(-4%,2%)} 50%{transform:translate(2%,-4%)}
  66%{transform:translate(-2%,4%)} 83%{transform:translate(3%,2%)}
  100%{transform:translate(0,0)}
}
.vignette{
  position:fixed; inset:0; z-index:1; pointer-events:none;
  background:
    radial-gradient(120% 80% at 50% 0%,  rgba(var(--vig),0) 40%, rgba(var(--vig),var(--vig-a1)) 100%),
    radial-gradient(100% 60% at 50% 100%,rgba(var(--vig),0) 45%, rgba(var(--vig),var(--vig-a2)) 100%);
}

/* ---------- smooth scroll wrapper ---------- */
#smooth-wrap{ position:relative; z-index:2; }
body.smooth #smooth-content{ position:fixed; top:0; left:0; width:100%; will-change:transform; }

/* ==========================================================================
   TYPOGRAPHY
   ========================================================================== */
.display{ font-weight:600; letter-spacing:-.052em; line-height:.9; font-size:clamp(2.6rem, 6.4vw, 6.9rem); }
.eyebrow{
  font-family:var(--mono); font-size:.645rem; letter-spacing:.24em;
  text-transform:uppercase; color:var(--ink-3); margin-bottom:34px;
}
.eyebrow .sep{ color:var(--ink-4); padding-inline:4px; }
.eyebrow--r{ text-align:right; margin-bottom:34px; }

.statement{
  font-weight:500; font-size:clamp(1.7rem, 3.5vw, 3.05rem);
  line-height:1.12; letter-spacing:-.028em;
  max-width:min(100%, 20.5ch);
}
.statement .hl{
  background:linear-gradient(180deg, var(--ink-4), var(--ink-4)) no-repeat;
  background-size:100% 1px; background-position:0 96%;
  color:var(--ink-2);
}

/* ---------- reveals ---------- */
[data-splitline]{ overflow:hidden; }
.sl{ display:block; overflow:hidden; }
.sl > i{ display:block; font-style:normal; transform:translateY(102%); transition:transform 1.05s var(--ease-out); }
.sl.is-in > i{ transform:translateY(0); }
.sw{ display:inline-block; overflow:hidden; vertical-align:bottom; }
.sw > i{ display:inline-block; font-style:normal; transform:translateY(105%); transition:transform .9s var(--ease-out); }
.sw.is-in > i{ transform:translateY(0); }
.reveal{ opacity:0; transform:translateY(24px); transition:opacity .95s var(--ease-out), transform .95s var(--ease-out); }
.reveal.is-in{ opacity:1; transform:none; }

/* ==========================================================================
   NAV
   ========================================================================== */
.nav{
  position:fixed; top:0; left:0; right:0; z-index:60; height:var(--nav-h);
  backdrop-filter:blur(10px) saturate(120%);
  -webkit-backdrop-filter:blur(10px) saturate(120%);
  background:var(--nav-bg);
  border-bottom:1px solid transparent;
  transition:background .4s var(--ease), border-color .4s var(--ease);
}
.nav.is-stuck{ background:var(--nav-bg-2); border-bottom-color:var(--line-2); }
.nav__in{
  height:var(--nav-h); max-width:var(--wrap); margin-inline:auto; padding-inline:var(--pad);
  display:flex; align-items:center; gap:14px;
}
.brand{ display:flex; align-items:center; gap:9px; }
.brand__mark{ color:var(--ink); display:flex; }
.brand__dot{ fill:var(--ok); }
.brand__name{ font-weight:600; letter-spacing:-.026em; font-size:.98rem; }
.brand__tld{ color:var(--ink-3); font-weight:500; }
.nav__tag{
  font-size:.72rem; color:var(--ink-3);
  padding-left:14px; margin-left:2px; border-left:1px solid var(--line);
}
.nav__links{ margin-left:auto; display:flex; gap:24px; }
.nav__links a{ font-size:.82rem; color:var(--ink-2); position:relative; padding-block:4px; transition:color .3s var(--ease); }
.nav__links a::after{
  content:""; position:absolute; left:0; bottom:0; height:1px; width:100%;
  background:var(--ink); transform:scaleX(0); transform-origin:0 50%;
  transition:transform .45s var(--ease-out);
}
.nav__links a:hover{ color:var(--ink); }
.nav__links a:hover::after{ transform:scaleX(1); }

.iconbtn{
  display:flex; align-items:center; justify-content:center;
  width:30px; height:30px; border:1px solid var(--line); border-radius:5px;
  color:var(--ink-3); position:relative;
  transition:border-color .3s var(--ease), color .3s var(--ease);
}
.iconbtn:hover{ border-color:var(--line-3); color:var(--ink); }
.iconbtn .ic{ position:absolute; transition:opacity .35s var(--ease), transform .5s var(--ease-out); }
.ic--sun{ opacity:0; transform:rotate(-60deg) scale(.6); }
.ic--moon{ opacity:1; transform:none; }
:root[data-theme="light"] .ic--sun{ opacity:1; transform:none; }
:root[data-theme="light"] .ic--moon{ opacity:0; transform:rotate(60deg) scale(.6); }
@media (prefers-color-scheme: light){
  :root:not([data-theme="dark"]) .ic--sun{ opacity:1; transform:none; }
  :root:not([data-theme="dark"]) .ic--moon{ opacity:0; transform:rotate(60deg) scale(.6); }
}

.kbd-btn{
  border:1px solid var(--line); border-radius:5px; padding:5px 9px; color:var(--ink-3);
  font-family:var(--mono); font-size:.64rem; letter-spacing:.06em;
  transition:border-color .3s var(--ease), color .3s var(--ease);
}
.kbd-btn:hover{ border-color:var(--line-3); color:var(--ink); }

.nav__burger{ display:none; width:30px; height:30px; position:relative; }
.nav__burger span{
  position:absolute; left:5px; width:20px; height:1px; background:var(--ink);
  transition:transform .4s var(--ease);
}
.nav__burger span:nth-child(1){ top:13px; }
.nav__burger span:nth-child(2){ top:18px; }
.nav__burger[aria-expanded="true"] span:nth-child(1){ transform:translateY(2.5px) rotate(45deg); }
.nav__burger[aria-expanded="true"] span:nth-child(2){ transform:translateY(-2.5px) rotate(-45deg); }

.nav__progress{
  position:absolute; left:0; bottom:-1px; height:1px; width:100%;
  background:var(--ink); transform:scaleX(0); transform-origin:0 50%;
}

.mobilemenu{
  position:fixed; inset:var(--nav-h) 0 auto 0; z-index:55;
  background:var(--menu-bg); backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line-2);
  padding:22px var(--pad) 30px;
  display:flex; flex-direction:column; gap:2px;
}
.mobilemenu a{ padding:11px 0; font-size:1.15rem; color:var(--ink-2); border-bottom:1px solid var(--line-2); }

/* ==========================================================================
   HERO
   ========================================================================== */
.hero{
  position:relative; z-index:1;
  padding-top:calc(var(--nav-h) + 64px); padding-bottom:30px;
  min-height:100svh; display:flex; flex-direction:column; justify-content:center;
}
.hero::before{
  content:""; position:absolute; inset:0; z-index:-1; pointer-events:none;
  background:linear-gradient(102deg,
    rgba(var(--scrim),.86) 0%, rgba(var(--scrim),.64) 26%,
    rgba(var(--scrim),.20) 48%, rgba(var(--scrim),0) 64%);
}
.hero__grid{ display:grid; grid-template-columns:minmax(0,1.16fr) minmax(0,.72fr); gap:58px; align-items:start; }
.hero__h1{ margin:4px 0 30px; font-size:clamp(2.2rem, 4.9vw, 5.3rem); line-height:.95; }
.hero__h1 .line{ display:block; }
.cycler-line{ position:relative; }
.cycler{ position:relative; display:inline-block; vertical-align:top; }
.cycler__w{
  display:block; white-space:nowrap;
  opacity:0; transform:translateY(58%) rotateX(-42deg); transform-origin:50% 0;
  transition:opacity .55s var(--ease), transform .8s var(--ease-out);
  color:var(--ink-2);
}
.cycler__w:not(:first-child){ position:absolute; inset:0; }
.cycler__w.is-on{ opacity:1; transform:none; color:var(--ink); }
.cycler__w.is-out{ opacity:0; transform:translateY(-58%) rotateX(42deg); }

.hero__sub{ color:var(--ink-2); font-size:1.04rem; line-height:1.66; max-width:48ch; margin-bottom:34px; }
.hero__cta{ display:flex; flex-wrap:wrap; gap:10px; margin-bottom:38px; }
.hero__trust{
  display:flex; flex-wrap:wrap; gap:26px;
  font-family:var(--mono); font-size:.66rem; letter-spacing:.12em;
  text-transform:uppercase; color:var(--ink-3);
  padding-top:22px; border-top:1px solid var(--line-2);
}
.hero__trust b{ color:var(--ink); font-weight:600; letter-spacing:.04em; }

.hero__right{ padding-top:6px; }
.hero__right-label{ font-size:.78rem; color:var(--ink-3); text-align:right; margin-bottom:16px; }

/* ---- 3D card ---- */
.stack{ position:relative; perspective:1400px; height:clamp(230px, 26vw, 310px); margin-bottom:30px; }
.stack__card,.stack__ghost{
  position:absolute; right:0; top:0;
  width:min(100%, 372px); height:clamp(210px, 24vw, 272px);
  border-radius:9px; transform-style:preserve-3d; will-change:transform;
}
.stack__ghost{
  border:1px solid var(--line);
  background:linear-gradient(140deg, var(--surface-2), var(--surface));
}
.stack__ghost--1{ transform:translate3d(26px,14px,-60px) rotateY(-19deg) rotateX(7deg) rotateZ(-7deg); opacity:.5; }
.stack__ghost--2{ transform:translate3d(52px,26px,-120px) rotateY(-19deg) rotateX(7deg) rotateZ(-7deg); opacity:.26; }

.stack__card{
  background:linear-gradient(158deg, var(--card-1) 0%, var(--card-2) 58%, var(--card-3) 100%);
  color:var(--card-ink);
  box-shadow:var(--card-shadow), 0 2px 0 var(--card-inset) inset, 0 0 0 1px var(--card-ring);
  transform:rotateY(-19deg) rotateX(7deg) rotateZ(-7deg);
  transition:transform .18s linear, background .5s var(--ease);
}
/* faces stack on top of each other and cross-fade */
.face{
  position:absolute; inset:0; padding:15px 17px 13px;
  display:flex; flex-direction:column;
  opacity:0; visibility:hidden;
  transform:translateY(9px) scale(.985);
  transition:opacity .42s var(--ease), transform .6s var(--ease-out), visibility .42s;
}
.face.is-on{ opacity:1; visibility:visible; transform:none; }

.card__top{
  display:flex; justify-content:space-between; align-items:flex-start;
  font-family:var(--mono); font-size:.585rem; color:var(--card-ink-2);
}
.card__slash{ color:var(--card-ink-3); }
.card__ar{ font-size:.72rem; color:var(--card-ink-2); }
.card__body{ flex:1; position:relative; margin-top:12px; }
.card__title{ font-weight:600; letter-spacing:-.046em; line-height:.94; font-size:clamp(1.4rem,2.5vw,1.95rem); }
.card__wave{ position:absolute; right:-4px; top:-2px; width:56%; opacity:.5; }
.card__wave svg{ width:100%; height:auto; }
.card__wave path{ fill:none; stroke:var(--card-ink-3); stroke-width:.9; }

.card__bars{
  position:absolute; right:0; top:0; width:52%; height:56px;
  display:flex; align-items:flex-end; gap:5px;
}
.card__bars i{
  flex:1; height:var(--h); border-radius:1px;
  background:var(--card-ink-3); opacity:.5;
  animation:barin .7s var(--ease-out) backwards;
}
.card__bars i:nth-child(2){ animation-delay:.06s } .card__bars i:nth-child(3){ animation-delay:.12s }
.card__bars i:nth-child(4){ animation-delay:.18s } .card__bars i:nth-child(5){ animation-delay:.24s }
.card__bars i:nth-child(6){ animation-delay:.3s; background:var(--ok); opacity:.85; }
@keyframes barin{ from{ height:4px; opacity:0 } }

.card__pulse{ position:absolute; right:6px; top:6px; display:flex; gap:5px; align-items:center; height:44px; }
.card__pulse i{
  width:3px; border-radius:2px; background:var(--card-ink-3);
  animation:pulse 1.1s var(--ease) infinite;
}
.card__pulse i:nth-child(1){ height:14px; animation-delay:0s }
.card__pulse i:nth-child(2){ height:26px; animation-delay:.14s }
.card__pulse i:nth-child(3){ height:18px; animation-delay:.28s }
@keyframes pulse{ 0%,100%{ transform:scaleY(.45) } 50%{ transform:scaleY(1) } }

.card__rows{
  position:absolute; left:0; bottom:2px; display:flex; flex-direction:column; gap:4px;
  font-family:var(--mono); font-size:.545rem; color:var(--card-ink-2);
}
.card__row{ display:flex; align-items:center; gap:6px; }
.card__row em{ font-style:normal; color:var(--card-ink-3); }
.card__foot{
  margin-top:10px; padding-top:8px; border-top:1px solid var(--card-line);
  display:flex; justify-content:space-between; align-items:center;
  font-family:var(--mono); font-size:.545rem; color:var(--card-ink-3);
}
.card__jm{ font-family:var(--sans); font-weight:700; font-size:.78rem; color:var(--card-ink); letter-spacing:-.02em; }

.dot{ width:5px; height:5px; border-radius:50%; background:var(--ink-4); flex:none; }
.dot--ok{ background:#4ADE80; box-shadow:0 0 0 3px rgba(74,222,128,.16); }
.dot--warn{ background:#F5B544; box-shadow:0 0 0 3px rgba(245,181,68,.14); }

.hero__tabs{
  display:grid; grid-template-columns:repeat(3,1fr);
  border-top:1px solid var(--line); border-bottom:1px solid var(--line);
  margin-bottom:26px;
}
.htab{
  padding:13px 4px; font-size:.76rem; color:var(--ink-3);
  display:flex; align-items:center; justify-content:center; gap:8px;
  transition:color .3s var(--ease); position:relative;
}
.htab + .htab{ border-left:1px solid var(--line-2); }
.htab i{ font-style:normal; font-size:.62rem; opacity:.7; }
.htab:hover{ color:var(--ink-2); }
.htab.is-on{ color:var(--ink); }
.htab.is-on::after{ content:""; position:absolute; left:0; right:0; bottom:-1px; height:1px; background:var(--ink); }

.hero__note-k{
  font-family:var(--mono); font-size:.6rem; letter-spacing:.22em;
  text-transform:uppercase; color:var(--ink-4); margin-bottom:10px;
}
.hero__note h3{ font-size:1.12rem; font-weight:600; letter-spacing:-.03em; margin-bottom:8px; }
.hero__note p{ color:var(--ink-3); font-size:.88rem; line-height:1.62; max-width:42ch; }

.hero__signal{
  margin-top:auto; padding-top:26px;
  display:flex; justify-content:space-between; align-items:center; gap:20px;
  font-family:var(--mono); font-size:.64rem; letter-spacing:.16em;
  text-transform:uppercase; color:var(--ink-3);
}
.signal__words{ display:flex; flex-wrap:wrap; align-items:center; gap:11px; }
.signal__words i{ color:var(--ink-4); font-style:normal; }
.signal__down{ display:inline-flex; align-items:center; gap:9px; color:var(--ink-3); transition:color .3s; }
.signal__down:hover{ color:var(--ink); }
.arrowdown{ display:inline-block; animation:bob 2.4s var(--ease) infinite; }
@keyframes bob{ 0%,100%{transform:translateY(0)} 50%{transform:translateY(5px)} }

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn{
  position:relative; display:inline-flex; align-items:center; gap:9px;
  padding:13px 20px; border:1px solid var(--line);
  font-size:.855rem; color:var(--ink-2); overflow:hidden; border-radius:3px;
  transition:color .4s var(--ease), border-color .4s var(--ease);
  will-change:transform;
}
.btn > span,.btn > i{ position:relative; z-index:2; }
.btn::before{
  content:""; position:absolute; inset:0; background:var(--ink);
  transform:translateY(101%); transition:transform .55s var(--ease-out);
}
.btn:hover{ color:var(--bg); border-color:var(--ink); }
.btn:hover::before{ transform:translateY(0); }
.btn__ar{ font-style:normal; font-size:.78rem; transition:transform .4s var(--ease-out); }
.btn:hover .btn__ar{ transform:translate(2px,-2px); }

.btn--primary{ background:var(--ink); color:var(--bg); border-color:var(--ink); font-weight:500; }
.btn--primary::before{ background:transparent; }
.btn--primary:hover{ color:var(--bg); }
.btn--primary::after{
  content:""; position:absolute; inset:0; z-index:1;
  background:linear-gradient(115deg,transparent 20%,rgba(255,255,255,.45) 50%,transparent 80%);
  transform:translateX(-120%); transition:transform .85s var(--ease-out);
}
.btn--primary:hover::after{ transform:translateX(120%); }

/* ==========================================================================
   MARQUEE
   ========================================================================== */
.marquee{
  position:relative; z-index:1;
  border-top:1px solid var(--line-2); border-bottom:1px solid var(--line-2);
  padding-block:17px; overflow:hidden;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 9%,#000 91%,transparent);
          mask-image:linear-gradient(90deg,transparent,#000 9%,#000 91%,transparent);
}
.marquee__track{ display:flex; width:max-content; will-change:transform; }
.marquee__set{ display:flex; align-items:center; }
.marquee__set span{
  font-family:var(--mono); font-size:.68rem; letter-spacing:.2em; text-transform:uppercase;
  color:var(--ink-4); padding-inline:26px; white-space:nowrap; transition:color .3s var(--ease);
}
.marquee:hover .marquee__set span{ color:var(--ink-3); }

/* ==========================================================================
   THESIS
   ========================================================================== */
.tri{ margin-top:70px; display:grid; grid-template-columns:repeat(3,1fr); border-top:1px solid var(--line); }
.tri__cell{ padding:26px 30px 30px; border-right:1px solid var(--line); }
.tri__cell:first-child{ padding-left:0; }
.tri__cell:last-child{ border-right:0; }
.tri__cell .k{
  font-family:var(--mono); font-size:.6rem; letter-spacing:.22em; text-transform:uppercase;
  color:var(--ink-4); margin-bottom:14px;
}
.tri__cell p:last-child{ color:var(--ink-2); font-size:.9rem; line-height:1.62; }

/* ==========================================================================
   SECTION HEADERS (label left, qualifier right)
   ========================================================================== */
.exhibits__head{ display:flex; justify-content:space-between; gap:30px; flex-wrap:wrap; }

/* ==========================================================================
   COVERED — the scope grid
   ========================================================================== */
.cov__h{
  font-weight:600; letter-spacing:-.042em; line-height:1.02;
  font-size:clamp(1.7rem, 3.4vw, 2.9rem);
  margin-bottom:44px;
}
.cov{
  display:grid; grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line); border-left:1px solid var(--line);
}
.cov__item{
  padding:20px 20px 22px;
  border-right:1px solid var(--line); border-bottom:1px solid var(--line);
  position:relative; transition:background .5s var(--ease);
}
.cov__item::before{
  content:""; position:absolute; left:20px; top:22px;
  width:9px; height:5px; border-left:1.5px solid var(--ok); border-bottom:1.5px solid var(--ok);
  transform:rotate(-45deg); opacity:.9;
}
.cov__item:hover{ background:var(--surface); }
.cov__item h3{
  font-size:.95rem; font-weight:600; letter-spacing:-.024em;
  margin:0 0 7px; padding-left:20px;
}
.cov__item p{ color:var(--ink-3); font-size:.8rem; line-height:1.5; padding-left:20px; }

/* ==========================================================================
   THE 168
   ========================================================================== */
.hours__grid{
  display:grid; grid-template-columns:minmax(0,1fr) minmax(0,.86fr);
  gap:58px; align-items:start;
  border-top:1px solid var(--line); padding-top:40px;
}
.hours__h{ font-weight:600; letter-spacing:-.04em; line-height:1.02; font-size:clamp(1.75rem, 3.5vw, 3.05rem); margin-bottom:32px; }

.hours__ctrl{ display:inline-flex; border:1px solid var(--line); border-radius:4px; overflow:hidden; margin-bottom:34px; }
.hctl{ padding:11px 20px; font-size:.83rem; color:var(--ink-3); transition:color .3s var(--ease), background .45s var(--ease); }
.hctl + .hctl{ border-left:1px solid var(--line); }
.hctl:hover{ color:var(--ink-2); }
.hctl.is-on{ color:var(--bg); background:var(--ink); font-weight:500; }
.hctl[data-cover="opt"].is-on{ background:var(--ok); color:var(--on-ink); }

.hours__read{ border-top:1px solid var(--line-2); padding-top:26px; }
.hours__big{ font-size:clamp(3.4rem, 7vw, 5.6rem); font-weight:600; letter-spacing:-.055em; line-height:.9; font-variant-numeric:tabular-nums; }
.hours__big i{ font-style:normal; color:var(--ink-4); font-size:.42em; margin-left:.08em; }
.hours__line{
  margin-top:14px; font-family:var(--mono); font-size:.72rem; letter-spacing:.1em;
  text-transform:uppercase; color:var(--ink-3);
}
.hours__line b{ color:var(--ink); font-weight:600; font-variant-numeric:tabular-nums; }
.hours__line .hours__gap{ color:var(--warn); }
.hours__dot{ color:var(--ink-4); padding-inline:8px; }
.hours__note{ margin-top:16px; color:var(--ink-3); font-size:.88rem; line-height:1.68; max-width:44ch; min-height:3.4em; }

.hours__cal{ align-self:start; width:100%; max-width:384px; margin-left:auto; }
.cal__head{ display:grid; grid-template-columns:repeat(7,1fr); gap:3px; margin-left:34px; margin-bottom:9px; }
.cal__head span{
  font-family:var(--mono); font-size:.56rem; letter-spacing:.16em; text-transform:uppercase;
  color:var(--ink-4); text-align:center;
}
.cal__body{ display:flex; gap:10px; }
.cal__hours{ width:24px; display:grid; grid-template-rows:repeat(24,13px); gap:3px; }
.cal__hours span{
  font-family:var(--mono); font-size:.5rem; color:var(--ink-4);
  line-height:1; display:flex; align-items:center; justify-content:flex-end;
}
.cal__grid{ flex:1; display:grid; grid-template-columns:repeat(7,1fr); grid-auto-rows:13px; gap:3px; }
.cell{ height:13px; border-radius:1.5px; background:var(--cell); transition:background .45s var(--ease), box-shadow .45s var(--ease); }
.cell--on{ background:var(--cell-on); box-shadow:var(--cell-glow); }
.cal__legend{
  display:flex; align-items:center; gap:18px; margin-top:16px;
  padding-top:13px; border-top:1px solid var(--line-2);
  font-family:var(--mono); font-size:.57rem; letter-spacing:.14em; text-transform:uppercase; color:var(--ink-4);
}
.cal__legend span{ display:flex; align-items:center; gap:7px; }
.cal__legend .cell{ width:11px; height:8px; flex:none; }
.cal__tz{ margin-left:auto; }

/* ==========================================================================
   CLOUDS
   ========================================================================== */
.cld{ display:grid; grid-template-columns:repeat(4,1fr); border-top:1px solid var(--line); }
.cld__cell{
  padding:30px 26px 34px; border-right:1px solid var(--line);
  position:relative; overflow:hidden; transition:background .5s var(--ease);
}
.cld__cell:first-child{ padding-left:0; }
.cld__cell:last-child{ border-right:0; }
.cld__cell::before{
  content:""; position:absolute; left:0; top:0; height:1px; width:100%;
  background:var(--ink); transform:scaleX(0); transform-origin:0 50%;
  transition:transform .7s var(--ease-out);
}
.cld__cell:hover::before{ transform:scaleX(1); }
.cld__cell:hover{ background:var(--surface); }
.cld__k{
  font-family:var(--mono); font-size:.58rem; letter-spacing:.22em; text-transform:uppercase;
  color:var(--ink-4); margin-bottom:18px;
  transition:color .45s var(--ease);
}
.cld__cell:hover .cld__k{ color:var(--ink-3); }
.cld__cell--other .cld__k{ color:var(--ok); }
.cld__cell h3{
  font-size:clamp(1.3rem,2.1vw,1.7rem); font-weight:600; letter-spacing:-.038em;
  margin-bottom:13px;
}
.cld__cell p{ color:var(--ink-2); font-size:.865rem; line-height:1.6; }
.cld__cell--other{ background:var(--surface); }
.cld__cell--other h3{ color:var(--ok); }
.cld__foot{ margin-top:30px; color:var(--ink-3); font-size:.875rem; line-height:1.7; max-width:70ch; }

/* ==========================================================================
   ROSTER
   ========================================================================== */
.rost{ display:grid; grid-template-columns:repeat(3,1fr); border-top:1px solid var(--line); border-left:1px solid var(--line); }
.rost__cell{
  padding:24px 24px 28px;
  border-right:1px solid var(--line); border-bottom:1px solid var(--line);
  transition:background .55s var(--ease); position:relative; overflow:hidden;
}
.rost__cell::before{
  content:""; position:absolute; left:0; top:0; width:2px; height:100%;
  background:var(--ok); transform:scaleY(0); transform-origin:50% 0;
  transition:transform .6s var(--ease-out);
}
.rost__cell:hover{ background:var(--surface); }
.rost__cell:hover::before{ transform:scaleY(1); }
.rost__no{ font-family:var(--mono); font-size:.58rem; letter-spacing:.2em; color:var(--ink-4); }
.rost__cell h3{ font-size:1.28rem; font-weight:600; letter-spacing:-.034em; margin:22px 0 9px; }
.rost__cell p{ color:var(--ink-2); font-size:.865rem; line-height:1.58; }
.rost__foot{ margin-top:30px; color:var(--ink-3); font-size:.875rem; line-height:1.7; max-width:68ch; }

/* ==========================================================================
   OPS / TERMINAL / CHART
   ========================================================================== */
.ops__grid{ display:grid; grid-template-columns:minmax(0,1.08fr) minmax(0,.82fr); gap:26px; }
.term{
  border:1px solid var(--line); border-radius:6px; overflow:hidden;
  background:var(--surface); min-height:430px; display:flex; flex-direction:column;
}
.term__bar{ display:flex; align-items:center; gap:14px; padding:11px 15px; border-bottom:1px solid var(--line-2); background:var(--surface); }
.term__dots{ display:flex; gap:6px; }
.term__dots i{ width:8px; height:8px; border-radius:50%; background:var(--ink-4); }
.term__title{ font-family:var(--mono); font-size:.66rem; color:var(--ink-3); }
.term__live{
  margin-left:auto; display:flex; align-items:center; gap:7px;
  font-family:var(--mono); font-size:.6rem; letter-spacing:.16em; text-transform:uppercase; color:var(--ink-3);
}
.term__body{ padding:18px 18px 22px; flex:1; font-family:var(--mono); font-size:.715rem; line-height:1.95; color:var(--ink-2); }
.term__line{ display:block; white-space:pre-wrap; }
.term__line .t{ color:var(--ink-4); }
.term__line .ok{ color:var(--ok); }
.term__line .warn{ color:var(--warn); }
.term__line .who{ color:var(--ink); }
.term__cursor{ display:inline-block; width:7px; height:.95em; background:var(--ink); vertical-align:-.12em; animation:blink 1.05s steps(2) infinite; }
@keyframes blink{ 0%,100%{opacity:1} 50%{opacity:0} }

.ops__side{ display:flex; flex-direction:column; gap:22px; }
.chartcard{ border:1px solid var(--line); border-radius:6px; padding:20px 20px 18px; }
.chartcard .k{
  font-family:var(--mono); font-size:.59rem; letter-spacing:.2em; text-transform:uppercase;
  color:var(--ink-4); margin-bottom:16px;
}
.chartcard canvas{ width:100%; height:auto; }
.chartcard__legend{
  display:flex; align-items:center; gap:18px; margin-top:14px;
  padding-top:13px; border-top:1px solid var(--line-2);
  font-family:var(--mono); font-size:.6rem; letter-spacing:.1em; text-transform:uppercase; color:var(--ink-3);
}
.chartcard__legend span{ display:flex; align-items:center; gap:7px; }
.swatch{ width:12px; height:2px; display:inline-block; }
.swatch--ghost{ background:var(--ink-4); }
.swatch--live{ background:var(--ok); }
.chartcard__delta{ margin-left:auto; color:var(--ok); font-size:.92rem; letter-spacing:-.02em; }
.ops__mini{ border:1px solid var(--line-2); border-radius:6px; padding:20px; }
.ops__mini p{ color:var(--ink-3); font-size:.86rem; line-height:1.7; }
.ops__mini b{ color:var(--ink); font-weight:600; }

/* ==========================================================================
   PROCESS
   ========================================================================== */
.steps{ display:grid; grid-template-columns:repeat(4,1fr); border-top:1px solid var(--line); }
.step{ padding:26px 26px 34px; border-right:1px solid var(--line); }
.step:first-child{ padding-left:0; }
.step:last-child{ border-right:0; }
.step__k{ font-family:var(--mono); font-size:.6rem; letter-spacing:.2em; text-transform:uppercase; color:var(--ok); }
.step h3{ font-size:1.18rem; font-weight:600; letter-spacing:-.032em; margin:24px 0 10px; }
.step p{ color:var(--ink-3); font-size:.855rem; line-height:1.62; }

/* ==========================================================================
   PROOF
   ========================================================================== */
.metrics{ display:grid; grid-template-columns:repeat(4,1fr); border-top:1px solid var(--line); border-left:1px solid var(--line); }
.metric{ padding:24px 22px 26px; border-right:1px solid var(--line); border-bottom:1px solid var(--line); }
.metric .k{
  font-family:var(--mono); font-size:.56rem; letter-spacing:.19em; text-transform:uppercase;
  color:var(--ink-4); margin-bottom:16px; min-height:2.4em;
}
.metric .v{ font-size:clamp(1.9rem,3.4vw,2.65rem); font-weight:600; letter-spacing:-.05em; line-height:1; font-variant-numeric:tabular-nums; }
.metric .spark{ width:100%; height:auto; margin:16px 0 12px; }
.metric .s{ font-family:var(--mono); font-size:.585rem; color:var(--ink-4); line-height:1.6; }

.quotes{ display:grid; grid-template-columns:1fr 1fr; gap:24px; margin-top:48px; }
.quote{ margin:0; border:1px solid var(--line-2); border-radius:5px; padding:26px 26px 22px; }
.quote blockquote{ margin:0 0 18px; font-size:1.02rem; line-height:1.58; letter-spacing:-.022em; color:var(--ink); }
.quote figcaption{ font-family:var(--mono); font-size:.6rem; letter-spacing:.16em; text-transform:uppercase; color:var(--ink-3); }
.quote figcaption span{ color:var(--ink-4); }

/* ==========================================================================
   FAQ
   ========================================================================== */
.acc{ border-top:1px solid var(--line); }
.acc__item{ border-bottom:1px solid var(--line); }
.acc__bar{
  width:100%; display:flex; justify-content:space-between; align-items:center; gap:24px;
  padding:24px 0; text-align:left; font-size:1.04rem; letter-spacing:-.026em; color:var(--ink-2);
  transition:color .35s var(--ease);
}
.acc__bar:hover{ color:var(--ink); }
.acc__pm{ color:var(--ink-4); font-size:1.05rem; flex:none; transition:transform .5s var(--ease-out); }
.acc__item.is-open .acc__bar{ color:var(--ink); }
.acc__item.is-open .acc__pm{ transform:rotate(45deg); }
.acc__body{ max-height:0; overflow:hidden; transition:max-height .8s var(--ease-out); }
.acc__body p{ color:var(--ink-3); font-size:.93rem; line-height:1.72; max-width:72ch; padding-bottom:26px; }

/* ==========================================================================
   CONTACT
   ========================================================================== */
.contact{ padding-block:140px 120px; }
.contact__h{ margin:6px 0 30px; }
.contact__sub{ color:var(--ink-2); font-size:1.04rem; line-height:1.66; max-width:52ch; margin-bottom:32px; }
.contact__cta{ display:flex; flex-wrap:wrap; gap:10px; margin-bottom:20px; }
.contact__phones{ font-size:.93rem; color:var(--ink-2); margin-bottom:20px; }
.contact__phones a{ color:inherit; text-decoration:none; border-bottom:1px solid var(--line-2); }
.contact__phones a:hover{ color:var(--ink-1); border-color:var(--ink-2); }
.contact__fine{ font-family:var(--mono); font-size:.6rem; letter-spacing:.19em; text-transform:uppercase; color:var(--ink-4); }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer{ position:relative; z-index:1; border-top:1px solid var(--line-2); padding-block:52px 40px; }
.footend{
  margin-top:34px; padding-top:22px; border-top:1px solid var(--line-2);
  display:flex; justify-content:space-between; gap:24px; flex-wrap:wrap;
  font-size:.78rem; color:var(--ink-4);
}
.footend__links{ display:flex; flex-wrap:wrap; gap:20px; }
.footend__links a{ transition:color .3s; }
.footend__links a:hover{ color:var(--ink); }

/* ==========================================================================
   COMMAND PALETTE
   ========================================================================== */
.palette{ position:fixed; inset:0; z-index:200; display:flex; align-items:flex-start; justify-content:center; }
.palette__bg{ position:absolute; inset:0; background:var(--modal-bg); backdrop-filter:blur(6px); animation:fade .3s var(--ease); }
@keyframes fade{ from{opacity:0} to{opacity:1} }
.palette__box{
  position:relative; margin-top:14vh; width:min(560px, calc(100vw - 32px));
  background:var(--bg-3); border:1px solid var(--line); border-radius:9px;
  box-shadow:0 40px 90px -20px rgba(0,0,0,.5); overflow:hidden;
  animation:pop .34s var(--ease-out);
}
@keyframes pop{ from{opacity:0; transform:translateY(-10px) scale(.985)} to{opacity:1; transform:none} }
.palette__inputrow{ display:flex; align-items:center; gap:12px; padding:15px 16px; border-bottom:1px solid var(--line-2); }
.palette__icon{ color:var(--ink-4); }
.palette__inputrow input{ flex:1; background:none; border:0; outline:none; color:var(--ink); font-family:var(--sans); font-size:.95rem; }
.palette__inputrow input::placeholder{ color:var(--ink-4); }
.palette__esc{ font-family:var(--mono); font-size:.58rem; color:var(--ink-4); border:1px solid var(--line); border-radius:4px; padding:3px 6px; }
.palette__list{ max-height:300px; overflow-y:auto; padding:6px; }
.palette__list li{ display:flex; align-items:center; gap:12px; padding:10px 12px; border-radius:5px; font-size:.88rem; color:var(--ink-2); cursor:pointer; }
.palette__list li em{ font-style:normal; color:var(--ink-4); font-size:.72rem; margin-left:auto; font-family:var(--mono); }
.palette__list li.is-sel{ background:var(--surface-2); color:var(--ink); }
.palette__foot{
  display:flex; gap:16px; padding:10px 16px; border-top:1px solid var(--line-2);
  font-family:var(--mono); font-size:.56rem; letter-spacing:.14em; text-transform:uppercase; color:var(--ink-4);
}

/* ==========================================================================
   CURSOR
   ========================================================================== */
.cursor{ position:fixed; left:0; top:0; z-index:300; pointer-events:none; mix-blend-mode:difference; }
.cursor__dot,.cursor__ring{ position:absolute; border-radius:50%; transform:translate(-50%,-50%); }
.cursor__dot{ width:5px; height:5px; background:#fff; }
.cursor__ring{ width:30px; height:30px; border:1px solid rgba(255,255,255,.5); transition:width .32s var(--ease-out), height .32s var(--ease-out); }
.cursor.is-hot .cursor__ring{ width:52px; height:52px; border-color:rgba(255,255,255,.85); }
@media (hover:none),(pointer:coarse){ .cursor{ display:none; } }

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (min-width:1700px){ html{ font-size:17.5px; } :root{ --wrap:1480px; --pad:54px; --nav-h:62px; } }
@media (min-width:2200px){ html{ font-size:20.5px; } :root{ --wrap:1820px; --pad:64px; --nav-h:70px; } }
@media (min-width:3000px){ html{ font-size:26px; }   :root{ --wrap:2400px; --pad:86px; --nav-h:86px; } }

@media (max-width:1100px){
  :root{ --pad:30px; }
  .hero__grid{ grid-template-columns:1fr; gap:56px; }
  .hero__right-label{ text-align:left; }
  .stack{ height:auto; min-height:250px; }
  .stack__card,.stack__ghost{ right:auto; left:0; }
  .cov{ grid-template-columns:1fr 1fr; }
  .cld{ grid-template-columns:1fr 1fr; }
  .cld__cell{ padding-left:26px; border-bottom:1px solid var(--line); }
  .cld__cell:first-child{ padding-left:26px; }
  .cld__cell:nth-child(2n){ border-right:0; }
  .hours__grid{ grid-template-columns:1fr; gap:46px; }
  .hours__note{ min-height:0; }
  .hours__cal{ margin-left:0; }
  .rost{ grid-template-columns:1fr 1fr; }
  .ops__grid{ grid-template-columns:1fr; }
  .metrics{ grid-template-columns:1fr 1fr; }
  .steps{ grid-template-columns:1fr 1fr; }
  .step{ padding-left:22px; }
  .step:nth-child(odd){ padding-left:0; }
  .step:nth-child(2n){ border-right:0; }
  .step:nth-child(-n+2){ border-bottom:1px solid var(--line); }
  .tri{ grid-template-columns:1fr; }
  .tri__cell{ padding-left:0; padding-right:0; border-right:0; border-bottom:1px solid var(--line); }
  .quotes{ grid-template-columns:1fr; }
}

@media (max-width:860px){
  :root{ --pad:22px; }
  .nav__links,.nav__tag{ display:none; }
  .nav__burger{ display:block; }
  .nav__in{ gap:10px; }
  .iconbtn{ margin-left:auto; }
  .kbd-btn{ display:none; }
  .sec{ padding-block:84px; }
  .hero{ padding-top:calc(var(--nav-h) + 56px); }
  .display{ font-size:clamp(2.5rem,12vw,4rem); }
  .cov{ grid-template-columns:1fr; }
  .cld{ grid-template-columns:1fr; }
  .cld__cell{ padding-left:0; padding-right:0; border-right:0; }
  .cld__cell:first-child{ padding-left:0; }
  .rost{ grid-template-columns:1fr; }
  .hours__ctrl{ display:grid; grid-template-columns:repeat(3,1fr); width:100%; }
  .hctl{ padding:12px 6px; font-size:.78rem; }
  .cal__hours{ width:18px; }
  .cal__head{ margin-left:28px; }
  .metrics{ grid-template-columns:1fr; }
  .steps{ grid-template-columns:1fr; }
  .step{ padding-left:0; padding-right:0; border-right:0; border-bottom:1px solid var(--line); }
  .hero__signal{ flex-direction:column; align-items:flex-start; gap:14px; }
  .contact{ padding-block:96px 86px; }
  .stack{ perspective:1000px; }
  .stack__card,.stack__ghost{ width:min(100%, 320px); height:clamp(200px, 58vw, 246px); }
  .stack__card{ transform:rotateY(-11deg) rotateX(5deg) rotateZ(-4deg); }
  .stack__ghost--1{ transform:translate3d(18px,10px,-44px) rotateY(-11deg) rotateX(5deg) rotateZ(-4deg); }
  .stack__ghost--2{ transform:translate3d(36px,20px,-88px) rotateY(-11deg) rotateX(5deg) rotateZ(-4deg); }
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; }
  .reveal{ opacity:1; transform:none; }
  .sl > i,.sw > i{ transform:none; }
  .grain{ display:none; }
}