/* LUT Gallery — lutgallery.com
   Pure black, large type, floating instrument panels. */

:root{
  --bg:#000;
  --ink:#fff;
  --muted:rgba(255,255,255,.56);
  --faint:rgba(255,255,255,.34);
  --line:rgba(255,255,255,.10);
  --line-2:rgba(255,255,255,.18);
  --r:#ff2d2d;
  --g:#2dff88;
  --b:#2d7bff;
  --sans:"Inter Tight","Inter",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --pad:clamp(20px,5vw,72px);
  --maxw:1240px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--bg);color:var(--ink);
  font-family:var(--sans);font-size:17px;line-height:1.55;
  font-weight:400;letter-spacing:-.011em;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
/* Images never squeeze or stretch: intrinsic ratio is preserved everywhere.
   height:auto lets the ratio drive the second axis; object-fit:contain is the
   backstop for any box that ever constrains both axes. */
img{max-width:100%;height:auto;display:block;object-fit:contain}
a{color:inherit;text-decoration:none}

.wrap{max-width:var(--maxw);margin:0 auto;padding-inline:var(--pad)}

/* ---------- type ---------- */
h1,h2,h3{font-weight:700;letter-spacing:-.045em;line-height:.94}
h1{font-size:clamp(2.55rem,8.6vw,7.4rem)}
h2{font-size:clamp(1.95rem,5.6vw,4.6rem)}
h3{font-size:clamp(1.15rem,2vw,1.4rem);letter-spacing:-.03em;line-height:1.15}
.lede{font-size:clamp(1rem,1.6vw,1.32rem);color:var(--muted);max-width:46ch;line-height:1.5;letter-spacing:-.015em}
.eyebrow{
  font-family:var(--mono);font-size:11px;font-weight:500;
  letter-spacing:.22em;text-transform:uppercase;color:var(--faint);
  display:flex;align-items:center;gap:12px;margin-bottom:26px;
}
.eyebrow::after{content:"";flex:1;height:1px;background:var(--line);max-width:180px}
p+p{margin-top:1em}

/* ---------- nav ---------- */
.nav{
  position:fixed;inset:0 0 auto 0;z-index:100;
  display:flex;align-items:center;gap:28px;
  padding:14px var(--pad);
  background:rgba(0,0,0,0);backdrop-filter:blur(0px);
  border-bottom:1px solid transparent;
  transition:background .35s ease,border-color .35s ease,backdrop-filter .35s ease;
}
.nav.stuck{background:rgba(0,0,0,.72);backdrop-filter:blur(18px) saturate(1.4);border-bottom-color:var(--line)}
.nav .brand{display:flex;align-items:center;gap:11px;font-weight:600;letter-spacing:-.03em;font-size:16px}
.nav .brand img{width:26px;height:26px;border-radius:6px;object-fit:contain}
.nav ul{display:flex;gap:26px;list-style:none;margin-left:auto;align-items:center}
.nav a.link{font-size:14px;color:var(--muted);transition:color .2s}
.nav a.link:hover{color:var(--ink)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  padding:12px 22px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:-.02em;
  background:var(--ink);color:#000;border:1px solid var(--ink);
  transition:transform .18s cubic-bezier(.2,.8,.3,1),box-shadow .25s;
}
.btn:hover{transform:translateY(-2px);box-shadow:0 12px 34px -12px rgba(255,255,255,.5)}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--line-2)}
.btn.ghost:hover{border-color:rgba(255,255,255,.45);box-shadow:none}
.btn.sm{padding:9px 18px;font-size:13.5px}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:34px}
.cta-note{font-family:var(--mono);font-size:11.5px;color:var(--faint);letter-spacing:.06em}

/* ---------- hero ---------- */
.hero{position:relative;padding:clamp(104px,17vh,210px) 0 0;overflow-x:clip;overflow-y:visible}
.hero::before{ /* spectral bloom behind the fold */
  content:"";position:absolute;left:50%;top:-160px;translate:-50% 0;
  width:min(1500px,150vw);height:900px;pointer-events:none;
  background:
    radial-gradient(closest-side at 30% 55%,rgba(45,123,255,.20),transparent 70%),
    radial-gradient(closest-side at 68% 42%,rgba(255,45,45,.15),transparent 70%),
    radial-gradient(closest-side at 50% 78%,rgba(45,255,136,.11),transparent 70%);
  filter:blur(30px);
}
.hero .wrap{position:relative}
.hero h1{max-width:15ch}
.hero h1 .dim{color:var(--faint)}
.hero .lede{margin-top:30px}

.shot{
  position:relative;margin-top:clamp(56px,8vw,96px);
  border-radius:14px;overflow:hidden;
  border:1px solid var(--line);
  box-shadow:0 60px 140px -50px rgba(45,123,255,.45),0 30px 90px -40px rgba(0,0,0,.9);
}
.shot img{width:100%}
.hero .shot{margin-bottom:-6vh}

/* ---------- stat band ---------- */
.band{border-block:1px solid var(--line);margin-top:11vh}
.band .wrap{display:grid;grid-template-columns:repeat(4,1fr)}
.band .cell{padding:34px 0;border-left:1px solid var(--line)}
.band .cell:first-child{border-left:0}
.band .cell:not(:first-child){padding-left:clamp(16px,3vw,38px)}
.band .n{font-size:clamp(1.35rem,3vw,2.35rem);font-weight:700;letter-spacing:-.045em;line-height:1}
.band .k{font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--faint);margin-top:12px}

/* ---------- sections ---------- */
section.feat{padding:clamp(68px,13vh,180px) 0}
.feat .head{max-width:100%}
.feat h2{max-width:16ch}
.feat h2 .accent{
  background:linear-gradient(96deg,var(--r),#ffb03a 30%,var(--g) 62%,var(--b));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.feat .lede{margin-top:26px}

.split{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(24px,4vw,56px);align-items:start;margin-top:clamp(48px,7vw,80px)}

/* wide 16:10 app shots read only at full width */
.wide{margin-top:clamp(44px,6vw,72px)}
.wide.bleed{max-width:1560px;margin-inline:auto;padding-inline:var(--pad)}

/* canvas board + its stack crop, overlapping */
.overlay{position:relative}
.overlay .inset{
  position:absolute;right:-5.5%;top:-10%;width:min(212px,20%);
  border-radius:10px;overflow:hidden;border:1px solid var(--line-2);
  background:#050506;box-shadow:0 40px 90px -30px rgba(0,0,0,.95);
  transform:perspective(1400px) rotateY(-8deg) rotateX(2deg);
}
.overlay .inset .cap{padding:9px 12px}

.panel{
  border:1px solid var(--line);border-radius:12px;overflow:hidden;
  background:#050506;
  box-shadow:0 40px 100px -50px rgba(0,0,0,.95);
}
.panel.tilt{transform:perspective(1600px) rotateY(-4deg) rotateX(1.5deg)}
.panel.tilt-r{transform:perspective(1600px) rotateY(4deg) rotateX(1.5deg)}
.panel .frame{overflow:hidden}
.panel .frame img{width:100%}
.panel .cap{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--faint);padding:12px 16px;border-top:1px solid var(--line);
}

/* bullet list */
.bullets{list-style:none;margin-top:8px}
.bullets li{padding:20px 0;border-top:1px solid var(--line)}
.bullets li:last-child{border-bottom:1px solid var(--line)}
.bullets.row{display:grid;grid-template-columns:repeat(3,1fr);gap:0 clamp(24px,4vw,56px);margin-top:clamp(40px,5vw,64px)}
.bullets.row li:last-child{border-bottom:0}
.bullets h3{margin-bottom:9px}
.bullets p{color:var(--muted);font-size:15.5px;max-width:44ch}

/* three-up cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:12px;overflow:hidden;margin-top:clamp(48px,7vw,72px)}
.cards .card{background:#000;padding:clamp(26px,3vw,38px)}
.cards .card .ix{font-family:var(--mono);font-size:11px;letter-spacing:.18em;color:var(--faint);margin-bottom:22px}
.cards .card p{color:var(--muted);font-size:15px;margin-top:12px}

/* diagnostics chips */
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:30px}
.chip{
  font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;
  padding:7px 13px;border:1px solid var(--line-2);border-radius:999px;color:var(--muted);
}
.chip.on{border-color:rgba(45,255,136,.45);color:#8effc0}
.chip.warn{border-color:rgba(255,176,58,.45);color:#ffcd85}

/* roadmap */
.road{list-style:none;margin-top:44px;columns:2;column-gap:56px}
.road li{break-inside:avoid;padding:14px 0 14px 26px;position:relative;color:var(--muted);font-size:15.5px;border-top:1px solid var(--line)}
.road li::before{content:"";position:absolute;left:0;top:22px;width:9px;height:1px;background:var(--faint)}
.road li b{color:var(--ink);font-weight:600}

/* ---------- closing ---------- */
.close{padding:clamp(84px,16vh,190px) 0;text-align:center;position:relative;overflow-x:clip;border-top:1px solid var(--line)}
.close::before{
  content:"";position:absolute;left:50%;bottom:-320px;translate:-50% 0;
  width:min(1100px,130vw);height:640px;pointer-events:none;
  background:radial-gradient(closest-side,rgba(45,123,255,.22),transparent 72%);
  filter:blur(24px);
}
.close .wrap{position:relative}
.close h2{max-width:16ch;margin-inline:auto}
.close .lede{margin:28px auto 0;text-align:center}
.close .cta-row{justify-content:center}
.close .mark{width:108px;height:auto;margin:0 auto 40px}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--line);padding:44px 0 60px;font-size:14px;color:var(--faint)}
footer .wrap{display:flex;flex-wrap:wrap;gap:22px;align-items:center}
footer nav{display:flex;gap:22px;margin-left:auto;flex-wrap:wrap}
footer a:hover{color:var(--ink)}
footer .mono{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase}

/* ---------- scroll reveal ---------- */
/* Progressive enhancement: content is VISIBLE by default. Only once the inline
   head script confirms JS + IntersectionObserver do we hide it to animate it in.
   Without this, a failed/never-firing observer leaves the whole page blank. */
.js-reveal .rv{opacity:0;translate:0 26px;transition:opacity .85s cubic-bezier(.2,.7,.3,1),translate .85s cubic-bezier(.2,.7,.3,1)}
.js-reveal .rv.in{opacity:1;translate:none}
@media(prefers-reduced-motion:reduce){
  .js-reveal .rv{opacity:1;translate:none;transition:none}
  html{scroll-behavior:auto}
  .panel.tilt,.panel.tilt-r{transform:none}
}


/* =======================================================================
   Responsive
   Breakpoints: 1180 (narrow desktop) · 1000 (tablet) · 780 (small tablet)
                600 (phone) · 420 (small phone)
   ======================================================================= */

/* manual line breaks are a desktop-only typographic choice */
br.dt{display:inline}

@media(max-width:1180px){
  :root{--maxw:1080px}
}

/* ---- tablet ---- */
@media(max-width:1000px){
  .split{grid-template-columns:1fr}
  #grade .split{grid-template-columns:auto auto}
  .cards{grid-template-columns:1fr 1fr}
  .cards .card:last-child{grid-column:1/-1}
  .feat h2{max-width:18ch}
}

/* ---- small tablet / large phone ---- */
@media(max-width:780px){
  br.dt{display:none}
  body{font-size:16px}
  .nav{gap:16px}
  .nav ul{gap:18px}
  .nav ul li.opt{display:none}
  .eyebrow{margin-bottom:20px}
  .eyebrow::after{max-width:90px}

  .band .wrap{grid-template-columns:1fr 1fr}
  .band .cell{padding:26px 0}
  .band .cell:nth-child(3){border-left:0}
  .band .cell:nth-child(3),.band .cell:nth-child(4){border-top:1px solid var(--line)}
  .band .cell:nth-child(odd){padding-left:0}

  .cards{grid-template-columns:1fr}
  .cards .card:last-child{grid-column:auto}
  .bullets.row{grid-template-columns:1fr}
  .bullets.row li:last-child{border-bottom:1px solid var(--line)}
  .road{columns:1}


  /* whole shot, always: fit the width and let the ratio set the height.
     Never crop or pan — the reader sees the entire window. */
  .panel.wide .frame img,
  .hero .shot img{width:100%;height:auto;max-width:100%}
  /* caption shouldn't out-weigh a shot that is only ~200px tall here */
  .panel .cap{font-size:9.5px;letter-spacing:.13em;padding:10px 13px}
}

/* ---- phone ---- */
@media(max-width:600px){
  .hero h1{max-width:none}
  .hero .lede,.lede{max-width:none}
  .cta-row{gap:10px;margin-top:26px}
  .cta-row .btn{flex:1 1 auto;justify-content:center}
  .cta-note{flex-basis:100%;line-height:1.6}
  .hero .shot{margin-bottom:-3vh}
  .band{margin-top:8vh}
  .close .mark{width:84px;margin-bottom:28px}
  .close h2,.close .lede{max-width:none}
  .chips{gap:6px}
  .chip{font-size:10px;padding:6px 10px}
  footer .wrap{flex-direction:column;align-items:flex-start;gap:16px}
  footer nav{margin-left:0;gap:18px}
}

/* ---- small phone ---- */
@media(max-width:420px){
  .nav{padding-inline:16px}
  .nav .brand{font-size:15px}
  .nav .brand img{width:22px;height:22px}
  .btn{padding:11px 18px;font-size:14px}
  .btn.sm{padding:8px 14px;font-size:13px}
  .band .wrap{grid-template-columns:1fr}
  .band .cell{border-left:0;padding-left:0!important}
  .band .cell+.cell{border-top:1px solid var(--line)}
}

/* ---- landscape phones: reclaim vertical space ---- */
@media(max-height:520px) and (orientation:landscape){
  .hero{padding-top:96px}
  section.feat{padding-block:64px}
}

/* ---- wide desktop: let the shots breathe ---- */
@media(min-width:1600px){
  :root{--maxw:1380px}
  .panel.wide{max-width:1560px;margin-inline:auto}
}


/* ---------- beta signup ---------- */
.signup{max-width:520px;margin:38px auto 0;text-align:left}
.signup .hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

.field{display:flex;flex-direction:column;gap:8px;margin-bottom:14px}
.field label{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--faint);
}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}

.signup input[type=email],
.signup select{
  width:100%;padding:13px 15px;
  font-family:var(--sans);font-size:15.5px;letter-spacing:-.011em;
  color:var(--ink);background:#0b0b0d;
  border:1px solid var(--line-2);border-radius:10px;
  transition:border-color .18s,background .18s;
  -webkit-appearance:none;appearance:none;
}
.signup select{
  /* the chevron is inline so no asset request and it recolours with the theme */
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1.5 6 6.5l5-5' fill='none' stroke='%23888' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;
  padding-right:38px;cursor:pointer;
}
.signup input::placeholder{color:var(--faint)}
.signup input:hover,.signup select:hover{border-color:rgba(255,255,255,.3)}
.signup input:focus,.signup select:focus{
  outline:none;border-color:rgba(255,255,255,.62);background:#101014;
}
.signup input:focus-visible,.signup select:focus-visible{outline:2px solid rgba(255,255,255,.28);outline-offset:2px}
.signup input[aria-invalid="true"]{border-color:rgba(255,90,90,.7)}

.signup button{width:100%;justify-content:center;margin-top:20px;padding:14px 22px;font-size:15.5px}
.signup button[disabled]{opacity:.55;pointer-events:none}

.form-note{
  margin-top:14px;font-size:13px;line-height:1.55;color:var(--faint);text-align:center;
}
.form-msg{
  margin-top:14px;font-family:var(--mono);font-size:12px;line-height:1.6;
  letter-spacing:.02em;text-align:center;min-height:1.2em;
}
.form-msg.err{color:#ff8f8f}
.form-msg.ok{color:#8effc0}

/* success replaces the form outright — nothing left to submit twice */
.signup.done .field,.signup.done .field-row,.signup.done button,.signup.done .form-note{display:none}
.signup.done .form-msg{font-size:15px;font-family:var(--sans);letter-spacing:-.011em}

.close .cta-note a{border-bottom:1px solid var(--line-2)}
.close .cta-note a:hover{border-bottom-color:rgba(255,255,255,.5)}

@media(max-width:600px){
  .field-row{grid-template-columns:1fr;gap:0}
  .signup{margin-top:30px}
}


/* ---------- section 04: the inspector you can actually scroll ---------- */
/* The real panel is 1902px tall. Rather than shrink it to illegibility or let
   it run down the page, it sits at native width in a fixed-height window the
   reader scrolls — the same gesture as scrolling it in the app. */
.inspector-split{
  display:grid;grid-template-columns:1fr minmax(300px,360px);
  gap:clamp(28px,5vw,72px);align-items:start;
}
.inspector-split .head{padding-top:4px}
.inspector-split .bullets{margin-top:34px}
.inspector-split .bullets li:last-child{border-bottom:1px solid var(--line)}

.inspector{margin:0}
.inspector-shell{
  position:relative;border:1px solid var(--line);border-radius:12px;
  background:#050506;overflow:hidden;
  box-shadow:0 40px 100px -50px rgba(0,0,0,.95);
}
/* Fades top and bottom so the cut edges read as "there is more", not as a
   badly cropped image. pointer-events:none keeps the scroll gesture working. */
.inspector-shell::before,
.inspector-shell::after{
  content:"";position:absolute;left:0;right:12px;height:34px;pointer-events:none;z-index:1;
}
.inspector-shell::before{top:0;background:linear-gradient(#050506,rgba(5,5,6,0))}
.inspector-shell::after{bottom:0;background:linear-gradient(rgba(5,5,6,0),#050506)}

.inspector-scroll{
  height:min(74vh,620px);overflow-y:auto;overscroll-behavior:contain;
  -webkit-overflow-scrolling:touch;
  scrollbar-width:thin;scrollbar-color:rgba(255,255,255,.22) transparent;
}
.inspector-scroll:focus-visible{outline:2px solid rgba(255,255,255,.4);outline-offset:-2px}
.inspector-scroll::-webkit-scrollbar{width:9px}
.inspector-scroll::-webkit-scrollbar-track{background:transparent}
.inspector-scroll::-webkit-scrollbar-thumb{
  background:rgba(255,255,255,.18);border-radius:99px;
  border:3px solid transparent;background-clip:content-box;
}
.inspector-scroll::-webkit-scrollbar-thumb:hover{background:rgba(255,255,255,.34);background-clip:content-box}
/* The capture is 2x retina (590x1902px = ~295x951pt in the app), so filling a
   ~350px column renders it slightly LARGER than life — legible, not shrunk. */
.inspector-scroll img{width:100%;height:auto;display:block}

.inspector .cap{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--faint);padding:12px 2px 0;
}

@media(max-width:900px){
  .inspector-split{grid-template-columns:1fr}
  .inspector{max-width:360px}
  .inspector-scroll{height:min(60vh,520px)}
}
@media(prefers-reduced-motion:reduce){.inspector-scroll{scroll-behavior:auto}}