/* AERVALE — marketing site. Deep ink, mineral fog, warm ivory; cyan = declared volume, amber = the track that matters. */
@font-face{font-family:"Archivo";src:url(fonts/archivo-latin-wdth-normal.woff2) format("woff2");font-weight:100 900;font-stretch:62% 125%;font-display:swap}
@font-face{font-family:"JetBrains Mono";src:url(fonts/jetbrains-mono-latin-wght-normal.woff2) format("woff2");font-weight:100 800;font-display:swap}

:root{
  --ink:#05090e; --ink-2:#0a121a; --ink-3:#101b25; --line:rgba(143,168,184,.22); --line-2:rgba(143,168,184,.12);
  --fog:#8fa8b8; --fog-2:#b6c7d1; --ivory:#ece6d8; --paper:#e8e3d4; --paper-ink:#0b141b;
  --volume:#76d0d6; --amber:#ecaa48;
  --display:"Archivo","Helvetica Neue",Arial,sans-serif; --mono:"JetBrains Mono",ui-monospace,"SF Mono",Menlo,monospace;
  --gut:clamp(1.25rem,4vw,3.5rem); --max:78rem;
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:4.5rem;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--ink);color:var(--ivory);font:400 1rem/1.6 var(--display);font-stretch:100%;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
h1,h2,h3,p,ol,ul,dl,dd,figure{margin:0;padding:0}
ol,ul{list-style:none}
em{font-style:normal;color:var(--amber)}
a{color:inherit}
:focus-visible{outline:2px solid var(--volume);outline-offset:3px;border-radius:1px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:fixed;left:1rem;top:-4rem;z-index:100;background:var(--ivory);color:var(--ink);padding:.7rem 1rem;font-weight:600;text-decoration:none}
.skip:focus{top:1rem}
.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--gut)}
.eyebrow{font:500 .72rem/1.4 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--fog)}
h1,h2{font-weight:340;font-stretch:108%;letter-spacing:-.028em;line-height:1.04;text-wrap:balance}
h3{font-weight:500;font-stretch:104%;letter-spacing:-.01em;line-height:1.25}
h3 span{font:500 .72rem var(--mono);letter-spacing:.1em;color:var(--fog);margin-right:.6em;vertical-align:.12em}
h2{font-size:clamp(2rem,4.2vw,3.7rem)}
.sub{color:var(--fog-2);font-size:clamp(1.02rem,1.3vw,1.18rem);max-width:40rem;text-wrap:pretty}

/* masthead */
.masthead{position:fixed;inset:0 0 auto 0;z-index:50;display:flex;align-items:center;gap:2rem;padding:1.1rem var(--gut);background:linear-gradient(var(--ink) 0,rgba(5,9,14,.0) 100%);transition:background-color .3s}
.masthead.solid{background:rgba(5,9,14,.98);border-bottom:1px solid var(--line-2)}
.wordmark{display:inline-flex;align-items:center;gap:.7rem;text-decoration:none;font:600 .92rem var(--display);font-stretch:118%;letter-spacing:.2em}
.wordmark svg{width:1.55rem;height:1.55rem;fill:none;stroke:var(--volume);stroke-width:1.6}
.masthead nav{margin-left:auto;display:flex;gap:2rem}
.masthead nav a{font:500 .72rem var(--mono);letter-spacing:.12em;text-transform:uppercase;text-decoration:none;color:var(--fog-2);padding:.6rem 0;transition:color .2s}
.masthead nav a:hover{color:var(--ivory)}
.nav-cta{font:500 .72rem var(--mono);letter-spacing:.12em;text-transform:uppercase;text-decoration:none;border:1px solid var(--line);padding:.7rem 1rem;transition:border-color .2s,background-color .2s}
.nav-cta:hover{border-color:var(--volume);background:rgba(118,208,214,.08)}

/* stage */
.stage{position:relative;height:100%;overflow:hidden;background:var(--ink)}
.scene{position:absolute;inset:0;width:100%;height:100%;display:block;-webkit-mask-image:radial-gradient(ellipse 78% 74% at 60% 50%,#000 55%,transparent 100%);mask-image:radial-gradient(ellipse 78% 74% at 60% 50%,#000 55%,transparent 100%)}
.ghost{position:absolute;left:0;right:0;bottom:-.12em;font:700 clamp(8rem,24vw,26rem)/.8 var(--display);font-stretch:125%;letter-spacing:-.04em;color:rgba(236,230,216,.04);text-align:center;white-space:nowrap;pointer-events:none;user-select:none}
.sim-note{position:absolute;right:var(--gut);top:5.4rem;font:500 .6875rem var(--mono);letter-spacing:.14em;text-transform:uppercase;color:rgba(143,168,184,.7)}

/* hero */
.hero{height:100svh;min-height:44rem}
.hero .stage::before{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(90deg,rgba(5,9,14,.96) 0,rgba(5,9,14,.82) 28%,rgba(5,9,14,0) 58%),linear-gradient(0deg,rgba(5,9,14,.88) 0,rgba(5,9,14,0) 34%);pointer-events:none}
.hero-copy{position:absolute;z-index:2;left:var(--gut);bottom:7.5rem;max-width:36rem}
.hero h1{font-size:clamp(2.3rem,4.2vw,4.1rem);margin-bottom:1.5rem}
.lede{max-width:33rem;color:var(--fog-2);font-size:clamp(1rem,1.25vw,1.12rem);margin-bottom:2rem;text-wrap:pretty}
.brand{font:600 .84em var(--display);font-stretch:118%;letter-spacing:.16em;color:var(--ivory)}
.actions{display:flex;flex-wrap:wrap;align-items:center;gap:1.2rem 2rem}
.btn{display:inline-flex;align-items:center;gap:.8rem;min-height:3rem;padding:.8rem 1.4rem;background:var(--ivory);color:var(--ink);text-decoration:none;font:600 .8rem var(--mono);letter-spacing:.1em;text-transform:uppercase;border:0;cursor:pointer;transition:background-color .2s,transform .2s}
.btn:hover{background:#fff}
.btn:active{transform:translateY(1px)}
.btn-quiet{display:inline-flex;align-items:center;gap:.6rem;min-height:2.75rem;color:var(--fog-2);background:none;border:0;cursor:pointer;font:500 .75rem var(--mono);letter-spacing:.12em;text-transform:uppercase;text-decoration:none;border-bottom:1px solid var(--line);transition:color .2s,border-color .2s}
.btn-quiet:hover{color:var(--ivory);border-color:var(--ivory)}
.readout{position:absolute;z-index:2;right:var(--gut);bottom:7.2rem;display:grid;gap:.9rem;min-width:13.5rem;padding-top:1rem;border-top:1px solid var(--line)}
.readout div{display:flex;justify-content:space-between;gap:1.5rem;align-items:baseline}
.readout dt{font:500 .6875rem var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--fog)}
.readout dd{font:500 .9rem var(--mono);font-variant-numeric:tabular-nums;color:var(--ivory);transition:color .4s}
.readout[data-state="relevant"] [data-r="state"],.readout[data-state="relevant"] [data-r="margin"]{color:var(--amber)}
.timeline{position:absolute;z-index:3;left:var(--gut);right:var(--gut);bottom:1.6rem;display:flex;align-items:stretch;gap:2rem;border-top:1px solid var(--line)}
.phases{display:flex;flex:1;position:relative}.phases li{display:contents}
.phases::before{content:"";position:absolute;left:0;top:-1px;height:1px;width:calc(var(--p,0)*100%);background:var(--amber)}
.phase{flex:1;text-align:left;background:none;border:0;color:var(--fog);padding:1rem 0 .2rem;cursor:pointer;font:500 .7rem var(--mono);letter-spacing:.14em;text-transform:uppercase;min-height:2.75rem;transition:color .25s}
.phase span{margin-right:.8rem;color:rgba(143,168,184,.55)}
.phase:hover{color:var(--ivory)}
.phase[aria-current="step"]{color:var(--ivory)}
.phase[aria-current="step"] span{color:var(--amber)}
.play{align-self:center;min-height:2.75rem;padding:0 1rem;background:none;border:1px solid var(--line);color:var(--fog-2);cursor:pointer;font:500 .7rem var(--mono);letter-spacing:.12em;text-transform:uppercase;transition:border-color .2s,color .2s}
.play:hover{border-color:var(--ivory);color:var(--ivory)}

/* problem */
.problem,.scenarios,.record,.cta{padding:clamp(5rem,12vw,10rem) 0}
.grid-2{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:clamp(2rem,7vw,7rem);align-items:start}
.grid-2 .lead{position:sticky;top:7rem}
.pains li{padding:2.2rem 0;border-top:1px solid var(--line)}
.pains li:last-child{border-bottom:1px solid var(--line)}
.pains h3{font-size:clamp(1.3rem,2vw,1.7rem);font-weight:420;margin-bottom:.8rem;color:var(--ivory)}
.pains p{color:var(--fog-2);max-width:34rem;text-wrap:pretty}
.pains em{color:inherit;font-style:italic}

/* loop */
.loop{height:420svh;position:relative;border-top:1px solid var(--line-2)}
.loop-pin{position:sticky;top:0;height:100svh}
.loop .stage::before{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(90deg,rgba(5,9,14,.97) 0,rgba(5,9,14,.84) 30%,rgba(5,9,14,0) 56%);pointer-events:none}
.loop-copy{position:absolute;z-index:2;left:var(--gut);top:50%;transform:translateY(-46%);width:min(27rem,38vw)}
.loop-copy h2{font-size:clamp(1.7rem,2.9vw,2.6rem);margin-bottom:2.2rem}
.steps li{border-top:1px solid var(--line);padding:.95rem 0;opacity:.62;transition:opacity .4s}
.steps li:last-child{border-bottom:1px solid var(--line)}
.steps li[aria-current="step"]{opacity:1}
.steps h3{font-size:1.15rem}
.steps p{color:var(--fog-2);font-size:.95rem;margin-top:.5rem;text-wrap:pretty}
.loop-six{position:absolute;z-index:2;left:var(--gut);right:var(--gut);bottom:1.6rem;display:flex;border-top:1px solid var(--line);font:500 .7rem var(--mono);letter-spacing:.14em;text-transform:uppercase;color:rgba(143,168,184,.5)}
.loop-six li{flex:1;padding-top:1rem;transition:color .3s}
.loop-six li.on{color:var(--ivory)}
.loop-six li.now{color:var(--amber)}
.loop-six li:nth-child(n+5)::after{content:" — next"; color:rgba(143,168,184,.35);text-transform:none;letter-spacing:.04em}
.loop-six li:nth-child(n+5):not(.on)::after{content:""}
.loop .sim-note{top:5.4rem}

/* record (light) */
.record{background:var(--paper);color:var(--paper-ink)}
.record .eyebrow{color:#4c6270}
.record h2{max-width:48rem;margin:0 0 1.4rem}
.record em{color:#8a4f06}
.record .sub{color:#2d4150}
.sheet{margin-top:clamp(2.5rem,5vw,4.5rem);border-top:2px solid var(--paper-ink);background:rgba(255,255,255,.28)}
.sheet figcaption{display:flex;justify-content:space-between;gap:1rem;padding:.9rem 1.2rem;font:500 .6875rem var(--mono);letter-spacing:.12em;text-transform:uppercase;color:#4c6270;border-bottom:1px solid rgba(11,20,27,.2)}
.sheet table{width:100%;border-collapse:collapse}
.sheet th,.sheet td{text-align:left;padding:1rem 1.2rem;border-bottom:1px solid rgba(11,20,27,.14);vertical-align:top}
.sheet thead th{font:500 .6875rem var(--mono);letter-spacing:.14em;text-transform:uppercase;color:#4c6270}
.sheet tbody th{font:500 .85rem var(--mono);width:8.5rem;white-space:nowrap;font-variant-numeric:tabular-nums}
.sheet td:nth-child(2){font-weight:500;font-stretch:104%}
.sheet td:nth-child(3){color:#2d4150;font-size:.93rem}
.sheet .hot th,.sheet .hot td{background:rgba(236,170,72,.2)}
.pair{display:grid;grid-template-columns:1fr 1fr;gap:clamp(1.5rem,5vw,5rem);margin-top:clamp(2.5rem,5vw,4rem)}
.pair h3{font-size:1.3rem;margin-bottom:.6rem}
.pair h3 span{color:#4c6270}
.pair p{color:#2d4150;max-width:30rem}

/* scenarios */
.scenarios{background:var(--ink-2)}
.scenarios .lead h2{margin:0 0 1.4rem}
.scen-list li{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.3fr);gap:2rem;padding:1.7rem 0;border-top:1px solid var(--line);transition:background-color .3s}
.scen-list li:last-child{border-bottom:1px solid var(--line)}
.scen-list li:hover{background:rgba(118,208,214,.04)}
.scen-list h3{font-size:1.25rem;font-weight:420}
.scen-list p{color:var(--fog-2);font-size:.98rem}

/* boundaries */
.bounds{padding:2.4rem 0;border-top:1px solid var(--line-2);border-bottom:1px solid var(--line-2);background:var(--ink)}
.bounds .wrap{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:clamp(2rem,7vw,7rem);align-items:baseline}
.bounds h2{font:500 .72rem var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--fog)}
.bounds p{color:var(--fog);font-size:.92rem;max-width:40rem}

/* cta / demo request */
.cta{background:radial-gradient(60rem 30rem at 85% 0,rgba(118,208,214,.07),transparent 70%),var(--ink)}
.demo-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:clamp(2.5rem,7vw,7rem);align-items:start}
.demo-intro{position:sticky;top:7rem}
.cta h2{font-size:clamp(2.4rem,4.8vw,4.6rem);margin:0 0 1.6rem}
.cta .sub{margin-bottom:2.4rem}
.expect{border-top:1px solid var(--line);margin-bottom:2rem}
.expect li{display:grid;grid-template-columns:2.4rem 1fr;gap:.4rem;padding:.9rem 0;border-bottom:1px solid var(--line);color:var(--fog-2);font-size:.97rem}
.expect b{font:500 .72rem var(--mono);color:var(--amber);padding-top:.3rem}
.direct{color:var(--fog);font-size:.95rem;line-height:1.9}
.direct a,.foot-mail a{color:var(--ivory);text-decoration:none;border-bottom:1px solid var(--line);transition:border-color .2s}
.direct a:hover,.foot-mail a:hover{border-color:var(--volume)}
.demo-panel{background:var(--ink-2);border:1px solid var(--line);padding:clamp(1.4rem,3vw,2.6rem)}
.demo-form h3,.demo-done h3{font-size:1.5rem;font-weight:420;margin-bottom:.4rem}
.req-note{font:500 .75rem var(--mono);color:var(--fog);margin-bottom:1.6rem}
fieldset{border:0;margin:0 0 1.8rem;padding:0;min-width:0}
legend{padding:0;margin-bottom:1rem;font:500 .75rem var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--volume);width:100%;border-bottom:1px solid var(--line-2);padding-bottom:.6rem}
.row{display:grid;grid-template-columns:1fr 1fr;gap:1rem 1.2rem}
.field{margin-bottom:1rem;min-width:0}
.field label{display:block;margin-bottom:.45rem;font-size:.9rem;font-weight:500;color:var(--ivory)}
.field label span{color:var(--amber)}
input[type=text],input[type=email],select,textarea{width:100%;min-height:3rem;padding:.75rem .9rem;background:var(--ink);color:var(--ivory);border:1px solid rgba(143,168,184,.38);border-radius:0;font:400 1rem/1.4 var(--display);transition:border-color .2s,box-shadow .2s;-webkit-appearance:none;appearance:none}
select{background-image:linear-gradient(45deg,transparent 50%,var(--fog) 50%),linear-gradient(135deg,var(--fog) 50%,transparent 50%);background-position:calc(100% - 1.2rem) 1.35rem,calc(100% - .85rem) 1.35rem;background-size:.38rem .38rem;background-repeat:no-repeat;padding-right:2.4rem}
select option{background:var(--ink-2);color:var(--ivory)}
textarea{resize:vertical;min-height:7rem}
input::placeholder,textarea::placeholder{color:#7f95a3}
input:hover,select:hover,textarea:hover{border-color:var(--fog)}
input:focus-visible,select:focus-visible,textarea:focus-visible{outline:none;border-color:var(--volume);box-shadow:0 0 0 3px rgba(118,208,214,.28)}
.hint{margin-top:.4rem;font-size:.82rem;color:var(--fog)}
.err{margin-top:.4rem;font-size:.85rem;color:#ffb27a;display:none}
.field.invalid .err{display:block}
.field.invalid input,.field.invalid select,.field.invalid textarea{border-color:#ffb27a}
.trap{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.consent{display:grid;grid-template-columns:1.4rem 1fr;gap:.2rem .8rem;align-items:start;margin:1.2rem 0 1.6rem}
.consent input{width:1.35rem;height:1.35rem;min-height:0;margin-top:.15rem;accent-color:var(--volume)}
.consent label{margin:0;font-weight:400;color:var(--fog-2);font-size:.92rem}
.consent .err{grid-column:2}
.submit{width:100%;justify-content:space-between;min-height:3.4rem}
.submit[disabled]{opacity:.65;cursor:progress}
.fine{margin-top:1rem;font-size:.82rem;color:var(--fog)}
.form-error{margin-bottom:1.4rem;padding:1rem 1.1rem;border:1px solid #ffb27a;color:#ffd9bf;font-size:.93rem;background:rgba(255,178,122,.07)}
.form-error a{color:#fff}
.demo-done{padding:2rem 0;text-align:left}
.demo-done:focus{outline:none}
.done-mark{display:grid;place-items:center;width:3rem;height:3rem;border:1px solid var(--volume);color:var(--volume);font-size:1.3rem;margin-bottom:1.4rem}
.demo-done p{color:var(--fog-2);margin-bottom:1.6rem;max-width:30rem}
.demo-done b{color:var(--ivory);font-weight:500}
[hidden]{display:none!important}

.foot{padding:2.5rem 0 3rem;border-top:1px solid var(--line-2);background:var(--ink)}
.foot .wrap{display:flex;justify-content:space-between;align-items:center;gap:2rem}
.foot-r{display:grid;gap:.8rem;justify-items:end}.foot-r p{font:400 .8rem var(--display);color:var(--fog);max-width:34rem;text-align:right}.foot-mail{display:flex;gap:1.5rem;font-size:.9rem!important}

/* motion preferences */
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition-duration:.01ms!important}}

/* tablet / mobile: recompose, don't shrink */
@media (max-width:980px){
  .masthead nav{display:none}.masthead{justify-content:space-between}.nav-cta{margin-left:auto}
  .grid-2,.bounds .wrap,.pair{grid-template-columns:1fr}
  .grid-2 .lead{position:static}
  .scen-list li{grid-template-columns:1fr;gap:.5rem}
  .foot .wrap{flex-direction:column;align-items:flex-start}.foot-r{justify-items:start}.foot-r p{text-align:left}
  .demo-grid{grid-template-columns:1fr}.demo-intro{position:static}
}
@media (max-width:900px){
  .hero{height:auto;min-height:100svh}
  .hero .stage{height:100svh;min-height:42rem}
  .hero .stage::before{background:linear-gradient(0deg,rgba(5,9,14,.98) 0,rgba(5,9,14,.9) 42%,rgba(5,9,14,0) 64%)}
  .scene{-webkit-mask-image:radial-gradient(ellipse 100% 70% at 50% 40%,#000 55%,transparent 100%);mask-image:radial-gradient(ellipse 100% 70% at 50% 40%,#000 55%,transparent 100%)}
  .hero-copy{bottom:8rem;right:var(--gut);max-width:34rem}
  .hero h1{font-size:clamp(2rem,8.6vw,3.4rem);margin-bottom:1rem}
  .lede{font-size:.98rem;margin-bottom:1.4rem}
  .readout{display:none}
  .sim-note{top:4.6rem;left:var(--gut);right:auto;font-size:.6875rem;letter-spacing:.08em}
  .timeline{bottom:1.8rem;gap:.8rem}
  .phase{font-size:.6875rem;letter-spacing:.08em;padding-right:.2rem}.phase span{display:none}
  .play{padding:0 .7rem;font-size:.6875rem}
  .ghost{display:none}
  .btn{padding:.8rem 1.1rem}
  .loop{height:380svh}
  .loop .stage::before{background:linear-gradient(0deg,rgba(5,9,14,.98) 0,rgba(5,9,14,.92) 45%,rgba(5,9,14,0) 62%)}
  .loop-copy{top:auto;bottom:4.6rem;transform:none;width:auto;right:var(--gut)}
  .loop-copy h2{font-size:1.45rem;margin-bottom:1rem}
  .steps li{display:none}.steps li[aria-current="step"]{display:block;border-bottom:1px solid var(--line)}
  .loop-six{font-size:.6875rem;letter-spacing:.02em;bottom:1.6rem}
  .loop-six li::after{display:none!important}.loop-six li:nth-child(n+5){display:none}
  .sheet figcaption{flex-direction:column;gap:.2rem}
  .sheet thead{display:none}
  .sheet tr{display:grid;grid-template-columns:5.6rem 1fr;border-bottom:1px solid rgba(11,20,27,.14)}
  .sheet th,.sheet td{border:0;padding:.7rem .8rem}
  .sheet tbody th{width:auto}
  .sheet td:nth-child(3){grid-column:2;padding-top:0}
  .bounds .wrap{gap:.8rem}
  .cta h2{font-size:clamp(2.4rem,12vw,3.4rem)}
  .row{grid-template-columns:1fr;gap:0}
  .foot-mail{flex-direction:column;gap:.4rem}
  input[type=text],input[type=email],select,textarea{font-size:1rem}
}
.err404{padding-top:20vh;min-height:100svh}.err404 h1{font-size:clamp(2.2rem,5vw,4rem)}.err404 .actions{margin-top:2rem}
.foot-mail a{display:inline-block;padding:.7rem 0;min-height:2.75rem}
.row-1{grid-template-columns:1fr}
@media (max-width:900px) and (max-height:760px){.hero .stage{height:auto;min-height:100svh}.hero h1{font-size:clamp(1.8rem,7.4vw,2.6rem)}.lede{font-size:.92rem;margin-bottom:1.1rem}.hero-copy{bottom:5.6rem}}