/* Lucid Camera — shared styles for /tools/ (the photographer's toolkit).
   Same design language as the landing page, tuned for instruments:
   mono numerals, hairline panels, one accent as the only signal. */
:root{
  --bg:#08080a;
  --bg-2:#0c0c0f;
  --deck:#141416;
  --deck-2:#1b1b1f;
  --elev:#1f1f23;
  --ink:#f5f0eb;
  --ink-80:rgba(245,240,235,.80);
  --ink-70:rgba(245,240,235,.70);
  --ink-55:rgba(245,240,235,.55);
  --ink-38:rgba(245,240,235,.38);
  --ink-22:rgba(245,240,235,.22);
  --hair:rgba(245,240,235,.11);
  --hair-2:rgba(245,240,235,.06);
  --accent:#e4442c;
  --accent-wash:rgba(228,68,44,.14);
  --focus:#ffd35e;
  --peak:#8cff26;
  --zebra:#ff5c49;
  --histo:#6da8ff;
  --display:"Fraunces",Georgia,serif;
  --sans:"Hanken Grotesk",-apple-system,"SF Pro Text",sans-serif;
  --mono:"IBM Plex Mono","SF Mono",ui-monospace,monospace;
  --wrap:940px;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*{margin:0;padding:0;box-sizing:border-box}
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:1.7;font-weight:400;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(100% 60% at 88% -10%, rgba(228,68,44,.08), transparent 46%),
    radial-gradient(80% 50% at 4% 2%, rgba(120,150,220,.05), transparent 52%),
    linear-gradient(180deg,#0a0a0d,#08080a 46%,#060608);
}
body::after{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:200;opacity:.035;mix-blend-mode:overlay;
  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='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
}
::selection{background:rgba(228,68,44,.32);color:#fff}
a{color:inherit;text-decoration:none}
/* author display rules (.row, .field, .seg …) otherwise beat the UA's [hidden] */
[hidden]{display:none!important}
h1,h2,h3{font-family:var(--display);font-optical-sizing:auto;font-weight:400}
.mono{font-family:var(--mono)}
.acc{color:var(--accent)}

/* ── nav ── */
nav{position:sticky;top:0;z-index:60;background:rgba(8,8,10,.74);
  backdrop-filter:blur(20px) saturate(1.4);-webkit-backdrop-filter:blur(20px) saturate(1.4);
  border-bottom:1px solid var(--hair)}
.nav-in{max-width:var(--wrap);margin:0 auto;padding:0 26px;height:62px;
  display:flex;align-items:center;justify-content:space-between;gap:18px}
.brand{display:flex;align-items:center;gap:11px;font-weight:600;font-size:15px;font-family:var(--sans);flex:none}
.brand svg{width:26px;height:26px;display:block}
.nav-right{display:flex;align-items:center;gap:20px}
.nav-right .back{font-family:var(--mono);font-size:12px;letter-spacing:.08em;color:var(--ink-55);
  text-transform:uppercase;transition:color .25s;white-space:nowrap}
.nav-right .back:hover{color:var(--ink)}
.nav-cta{font-family:var(--mono);font-size:11.5px;letter-spacing:.06em;text-transform:uppercase;
  border:1px solid var(--hair);border-radius:999px;padding:8px 15px;color:var(--ink);white-space:nowrap;
  transition:border-color .25s,background .25s}
.nav-cta:hover{border-color:var(--accent);background:var(--accent-wash)}
@media(max-width:560px){.nav-right .back{display:none}}

/* ── page head ── */
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 26px}
.crumb{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--ink-38);padding-top:34px}
.crumb a{color:var(--ink-55);transition:color .2s}
.crumb a:hover{color:var(--accent)}
.crumb span{color:var(--ink-22);padding:0 8px}
header.doc{padding:22px 0 38px;border-bottom:1px solid var(--hair)}
.eyebrow{font-family:var(--mono);font-size:11.5px;letter-spacing:.28em;color:var(--ink-38);
  text-transform:uppercase;display:inline-flex;align-items:center;gap:10px}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 10px rgba(228,68,44,.8);flex:none}
header.doc h1{font-size:clamp(34px,5.6vw,54px);letter-spacing:-.028em;line-height:1.04;margin:20px 0 0}
header.doc h1 em{font-style:italic;font-weight:300;color:var(--ink-80)}
.lede{color:var(--ink-80);font-size:18.5px;line-height:1.62;margin-top:20px;max-width:660px}

/* ── body sections ── */
main{padding:6px 0 30px}
section.doc{padding:38px 0;border-top:1px solid var(--hair-2)}
h2{font-family:var(--display);font-size:clamp(24px,3vw,31px);font-weight:400;letter-spacing:-.02em;margin:0 0 16px}
h2 em{font-style:italic;font-weight:300;color:var(--ink-80)}
h3{font-family:var(--sans);font-size:16.5px;font-weight:600;margin:24px 0 6px;color:var(--ink)}
p,li{color:var(--ink-80);font-size:16.5px}
p+p{margin-top:14px}
strong{color:var(--ink);font-weight:600}
a.link{color:var(--accent);border-bottom:1px solid rgba(228,68,44,.4);transition:border-color .25s}
a.link:hover{border-color:var(--accent)}
ul,ol{padding-left:22px;margin:14px 0}
li{margin:8px 0}
li::marker{color:var(--ink-38)}
code{font-family:var(--mono);font-size:.9em;background:var(--deck);border:1px solid var(--hair-2);
  border-radius:6px;padding:2px 6px;color:var(--ink)}

/* ── the instrument panel ── */
.panel{border:1px solid var(--hair);border-radius:22px;
  background:linear-gradient(180deg,var(--deck),#0d0d10);
  padding:26px;margin:30px 0 8px;position:relative;overflow:hidden}
.panel::before{content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(80% 60% at 100% 0%,rgba(228,68,44,.07),transparent 58%)}
.panel>*{position:relative}
.panel-head{display:flex;align-items:baseline;justify-content:space-between;gap:14px;flex-wrap:wrap;
  margin-bottom:20px}
.panel-title{font-family:var(--mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--ink-38)}
.panel-title b{color:var(--accent);font-weight:500}

/* fields */
.row{display:grid;gap:16px;margin-bottom:16px}
.row.c2{grid-template-columns:1fr 1fr}
.row.c3{grid-template-columns:1fr 1fr 1fr}
.row.c4{grid-template-columns:repeat(4,1fr)}
@media(max-width:680px){.row.c3,.row.c4{grid-template-columns:1fr 1fr}}
@media(max-width:460px){.row.c2,.row.c3,.row.c4{grid-template-columns:1fr}}
.field{display:flex;flex-direction:column;gap:7px;min-width:0}
.field>label,.lbl{font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--ink-38)}
.field .hint{font-family:var(--mono);font-size:10.5px;color:var(--ink-22);letter-spacing:.04em}
input[type=text],input[type=number],input[type=date],input[type=time],select,textarea{
  width:100%;background:#0a0a0c;border:1px solid var(--hair);border-radius:12px;
  color:var(--ink);font-family:var(--mono);font-size:15px;padding:11px 13px;
  transition:border-color .2s,background .2s;appearance:none;-webkit-appearance:none}
select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='rgba(245,240,235,.45)' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 13px center;padding-right:34px}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent);background:#0d0b0b}
input[type=number]{-moz-appearance:textfield}
input[type=number]::-webkit-outer-spin-button,input[type=number]::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
.inline-unit{position:relative}
.inline-unit .u{position:absolute;right:13px;top:50%;transform:translateY(-50%);
  font-family:var(--mono);font-size:12px;color:var(--ink-38);pointer-events:none}
.inline-unit input{padding-right:44px}

/* segmented chips */
.seg{display:flex;flex-wrap:wrap;gap:7px}
.seg button{font-family:var(--mono);font-size:11.5px;letter-spacing:.06em;color:var(--ink-55);
  background:transparent;border:1px solid var(--hair);border-radius:999px;padding:8px 13px;
  cursor:pointer;transition:color .2s,border-color .2s,background .2s;white-space:nowrap}
.seg button:hover{color:var(--ink);border-color:var(--ink-22)}
.seg button[aria-pressed=true]{color:var(--ink);border-color:var(--accent);background:var(--accent-wash)}

/* sliders */
input[type=range]{width:100%;height:26px;background:transparent;appearance:none;-webkit-appearance:none;cursor:pointer}
input[type=range]::-webkit-slider-runnable-track{height:3px;border-radius:2px;
  background:linear-gradient(90deg,var(--accent) var(--pct,50%),rgba(245,240,235,.14) var(--pct,50%))}
input[type=range]::-moz-range-track{height:3px;border-radius:2px;background:rgba(245,240,235,.14)}
input[type=range]::-moz-range-progress{height:3px;border-radius:2px;background:var(--accent)}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:18px;height:18px;border-radius:50%;
  background:var(--ink);margin-top:-7.5px;box-shadow:0 2px 10px rgba(0,0,0,.6)}
input[type=range]::-moz-range-thumb{width:18px;height:18px;border:none;border-radius:50%;background:var(--ink)}

/* readouts */
.readouts{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1px;
  background:var(--hair-2);border:1px solid var(--hair);border-radius:18px;overflow:hidden;margin-top:22px}
.ro{background:#0b0b0e;padding:18px 18px 20px;min-width:0}
.ro .l{font-family:var(--mono);font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-38);
  display:block;margin-bottom:10px}
.ro .v{font-family:var(--mono);font-size:clamp(21px,3.4vw,27px);font-weight:500;letter-spacing:-.02em;
  color:var(--ink);line-height:1.1;overflow-wrap:anywhere}
.ro .v.big{font-size:clamp(25px,4.4vw,36px)}
.ro .v small{font-size:.52em;color:var(--ink-38);letter-spacing:.06em;margin-left:5px}
.ro .s{font-family:var(--mono);font-size:11px;color:var(--ink-38);margin-top:8px;letter-spacing:.03em}
.ro.hero{background:linear-gradient(180deg,#131013,#0b0b0e)}
.ro.hero .v{color:var(--accent)}

/* result strip / bar visual */
.bar{height:44px;border:1px solid var(--hair);border-radius:12px;background:#0a0a0c;
  position:relative;overflow:hidden;margin-top:6px}
.bar .fill{position:absolute;top:0;bottom:0;background:linear-gradient(90deg,rgba(228,68,44,.5),rgba(228,68,44,.22));
  border-left:1px solid var(--accent);border-right:1px solid var(--accent);transition:left .25s var(--ease),width .25s var(--ease)}
.bar .tick{position:absolute;top:0;bottom:0;width:1px;background:var(--ink-22)}
.bar .lab{position:absolute;bottom:5px;font-family:var(--mono);font-size:9.5px;color:var(--ink-38);
  transform:translateX(-50%);white-space:nowrap}

/* tables */
.tbl{width:100%;border-collapse:collapse;margin:18px 0;font-family:var(--mono);font-size:13.5px}
.tbl th{text-align:left;font-weight:500;font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--ink-38);padding:0 12px 10px 0;border-bottom:1px solid var(--hair)}
.tbl td{padding:10px 12px 10px 0;border-bottom:1px solid var(--hair-2);color:var(--ink-80);vertical-align:top}
.tbl tr:hover td{color:var(--ink)}
.tbl td.acc{color:var(--accent)}
.tbl-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}

/* notes */
.note{font-size:14.5px;color:var(--ink-55);border-left:2px solid var(--hair);padding:2px 0 2px 16px;margin:18px 0}
.note b{color:var(--ink-80)}
.callout{border:1px solid var(--hair);border-radius:20px;background:linear-gradient(180deg,var(--deck),#0e0e11);
  padding:26px 28px;margin:24px 0;position:relative;overflow:hidden}
.callout::before{content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(90% 70% at 0% 0%,rgba(228,68,44,.08),transparent 60%)}
.callout .tag{font-family:var(--mono);font-size:11px;letter-spacing:.18em;color:var(--accent);
  text-transform:uppercase;display:block;margin-bottom:11px;position:relative}
.callout p{color:var(--ink);font-size:17.5px;line-height:1.56;position:relative}

/* privacy badge */
.badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.badge{font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--ink-55);border:1px solid var(--hair);border-radius:999px;padding:6px 12px;
  display:inline-flex;align-items:center;gap:7px}
.badge::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--peak);opacity:.8}

/* FAQ */
.faq details{border-top:1px solid var(--hair-2);padding:0}
.faq details:last-child{border-bottom:1px solid var(--hair-2)}
.faq summary{list-style:none;cursor:pointer;padding:18px 30px 18px 0;position:relative;
  font-weight:600;font-size:16.5px;color:var(--ink);transition:color .2s}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";position:absolute;right:6px;top:26px;width:9px;height:9px;
  border-right:1.6px solid var(--ink-38);border-bottom:1.6px solid var(--ink-38);
  transform:rotate(45deg);transition:transform .25s var(--ease),border-color .2s}
.faq details[open] summary::after{transform:rotate(-135deg);border-color:var(--accent)}
.faq summary:hover{color:var(--accent)}
.faq .a{padding:0 0 20px;color:var(--ink-70);font-size:16px}
.faq .a p+p{margin-top:12px}

/* related tools grid */
.tool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(232px,1fr));gap:14px;margin-top:22px}
.tool-card{border:1px solid var(--hair);border-radius:18px;background:linear-gradient(180deg,var(--deck),#0d0d10);
  padding:20px;transition:border-color .25s,transform .25s var(--ease),background .25s;display:block}
.tool-card:hover{border-color:var(--accent);transform:translateY(-3px)}
.tool-card .k{font-family:var(--mono);font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--accent)}
.tool-card .t{font-family:var(--display);font-size:20px;letter-spacing:-.01em;margin:9px 0 7px;color:var(--ink)}
.tool-card .d{font-size:14.5px;color:var(--ink-55);line-height:1.55}

/* app CTA */
.cta{display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
  border:1px solid var(--hair);border-radius:24px;background:linear-gradient(180deg,#141416,#0c0c0f);
  padding:30px 32px;margin:34px 0 10px;position:relative;overflow:hidden}
.cta::before{content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(70% 100% at 100% 0%,rgba(228,68,44,.12),transparent 60%)}
.cta>*{position:relative}
.cta .ic{width:62px;height:62px;border-radius:15px;overflow:hidden;flex:none;border:1px solid var(--hair);
  box-shadow:0 14px 40px -16px rgba(0,0,0,.9)}
.cta .txt{flex:1;min-width:240px}
.cta .txt h3{font-family:var(--display);font-size:23px;font-weight:400;margin:0 0 6px;letter-spacing:-.01em}
.cta .txt h3 em{font-style:italic;color:var(--ink-80);font-weight:300}
.cta .txt p{font-size:15.5px;color:var(--ink-55);margin:0}
.btn-primary{display:inline-flex;align-items:center;gap:11px;background:var(--ink);color:#0b0b0d;
  font-weight:600;font-size:15px;font-family:var(--sans);padding:14px 24px;border-radius:999px;
  transition:transform .3s var(--ease),box-shadow .3s;box-shadow:0 10px 40px -14px rgba(245,240,235,.4);
  white-space:nowrap;border:none;cursor:pointer}
.btn-primary .px{font-family:var(--mono);font-size:12px;opacity:.6;padding-left:11px;border-left:1px solid rgba(0,0,0,.22)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 50px -14px rgba(245,240,235,.5)}
.btn-ghost{font-family:var(--mono);font-size:12px;letter-spacing:.06em;text-transform:uppercase;
  color:var(--ink-55);border:1px solid var(--hair);border-radius:999px;padding:10px 17px;
  background:transparent;cursor:pointer;transition:color .2s,border-color .2s}
.btn-ghost:hover{color:var(--ink);border-color:var(--ink-22)}

/* drop zone (file tools) */
.drop{border:1.5px dashed var(--hair);border-radius:20px;background:#0a0a0c;
  padding:44px 26px;text-align:center;cursor:pointer;transition:border-color .25s,background .25s}
.drop:hover,.drop.over{border-color:var(--accent);background:rgba(228,68,44,.05)}
.drop .big{font-family:var(--display);font-size:22px;color:var(--ink);margin-bottom:8px}
.drop .sm{font-family:var(--mono);font-size:12px;color:var(--ink-38);letter-spacing:.04em}
.drop input[type=file]{display:none}
.canvas-wrap{position:relative;border:1px solid var(--hair);border-radius:16px;overflow:hidden;background:#000}
.canvas-wrap canvas{display:block;width:100%;height:auto}

/* ── guides / long-form articles ── */
.meta{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--ink-38);margin-top:18px;display:flex;gap:14px;flex-wrap:wrap}
.meta span::before{content:"·";margin-right:14px;color:var(--ink-22)}
.meta span:first-child::before{content:"";margin:0}
.answer{border:1px solid var(--hair);border-left:2px solid var(--accent);border-radius:0 18px 18px 0;
  background:linear-gradient(90deg,rgba(228,68,44,.07),transparent 60%);padding:24px 26px;margin:28px 0}
.answer .tag{font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;color:var(--accent);
  text-transform:uppercase;display:block;margin-bottom:10px}
.answer p{color:var(--ink);font-size:17.5px;line-height:1.55;margin:0}
.answer p+p{margin-top:12px}
.contents{border:1px solid var(--hair-2);border-radius:16px;background:#0b0b0e;padding:20px 24px;margin:28px 0}
.contents .lbl{display:block;margin-bottom:12px}
.contents ol{margin:0;padding-left:20px}
.contents li{margin:6px 0;font-size:15.5px}
.contents a{color:var(--ink-70);transition:color .2s}
.contents a:hover{color:var(--accent)}
.steps{counter-reset:step;list-style:none;padding:0;margin:22px 0}
.steps>li{counter-increment:step;position:relative;padding:0 0 0 52px;margin:0 0 24px}
.steps>li::before{content:counter(step);position:absolute;left:0;top:-2px;width:34px;height:34px;
  border:1px solid var(--hair);border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:13px;color:var(--accent);background:#0b0b0e}
.steps>li h3{margin:0 0 6px;font-size:17px}
.steps>li p{margin:0;font-size:16px}
article h2{margin-top:8px}
article section.doc:first-of-type{border-top:none}

/* footer */
footer{border-top:1px solid var(--hair);padding:48px 0 60px;margin-top:24px}
.foot{max-width:var(--wrap);margin:0 auto;padding:0 26px;display:flex;align-items:center;
  justify-content:space-between;gap:24px;flex-wrap:wrap}
.foot .brand{opacity:.9}
.foot-links{display:flex;gap:22px;font-family:var(--mono);font-size:12px;letter-spacing:.06em;
  color:var(--ink-55);text-transform:uppercase;flex-wrap:wrap}
.foot-links a:hover{color:var(--ink)}
.foot-note{width:100%;margin-top:26px;font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;
  color:var(--ink-38);line-height:1.9;text-transform:uppercase}

@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto;transition:none!important}}
@media(max-width:560px){
  header.doc{padding:18px 0 30px}
  section.doc{padding:30px 0}
  .panel{padding:20px;border-radius:18px}
  .cta{padding:24px}
}

/* Copy-link button on the calculators (injected by tools.js).
   Uses the existing token set so it reads as native rather than bolted on. */
.share-field{margin-top:18px}
.share-link-btn{
  width:100%;
  padding:11px 14px;
  font:inherit;
  font-size:13px;
  letter-spacing:.02em;
  color:var(--ink-80);
  background:transparent;
  border:1px solid var(--ink-22);
  border-radius:8px;
  cursor:pointer;
  transition:border-color .15s ease,color .15s ease,background .15s ease;
}
.share-link-btn:hover{
  color:var(--ink);
  border-color:var(--accent);
  background:var(--accent-wash);
}
.share-link-btn:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
}