/* ============================================================
   Aperture Lab — cinematic darkroom design system
   Tokens first (design system lives here).
   ============================================================ */
:root{
  --stage:#0a0a0b;        /* near-black darkroom stage */
  --stage-2:#111012;      /* raised surface */
  --panel:#151316;
  --ink:#f2ede4;          /* warm ivory */
  --dim:#a8a196;
  --faint:#6e685e;
  --amber:#e8b06a;        /* safelight */
  --amber-deep:#c8863f;
  --teal:#6fa0a8;         /* cool cast of an un-graded RAW */
  --line:rgba(242,237,228,.12);
  --line-2:rgba(242,237,228,.06);
  --max:1240px;
  --ease:cubic-bezier(.16,1,.3,1);      /* signature: expo-out, slow settle */
  --ease-soft:cubic-bezier(.33,.9,.32,1);
  --r:14px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  background:var(--stage);color:var(--ink);
  font-family:"Inter Tight",system-ui,sans-serif;font-weight:400;line-height:1.55;
  overflow-x:hidden;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none}
em{font-style:italic}
::selection{background:var(--amber);color:#120c04}
img{max-width:100%;display:block}

/* fixed decorative layers */
.grain{position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.05;mix-blend-mode:screen}
.vignette{position:fixed;inset:0;z-index:1;pointer-events:none;
  background:radial-gradient(120% 90% at 50% 40%,transparent 55%,rgba(0,0,0,.55) 100%)}
body>*:not(.grain):not(.vignette){position:relative;z-index:2}

/* ---------- type scale ---------- */
.eyebrow,.kicker{font-family:"JetBrains Mono",monospace;font-size:.72rem;letter-spacing:.22em;
  text-transform:uppercase;color:var(--amber)}
h1,h2,h3{font-family:"Fraunces",Georgia,serif;font-weight:500;letter-spacing:-.01em;line-height:1.02}
.hero-title{font-weight:400;font-size:clamp(2.9rem,8.5vw,7rem);line-height:.98}
.hero-title em{color:var(--amber);font-style:italic;font-weight:500}
h2{font-size:clamp(2rem,4.6vw,3.4rem);font-weight:500}
h3{font-size:1.22rem;font-weight:600;font-family:"Inter Tight",sans-serif;letter-spacing:-.01em}

/* ---------- nav ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:60;display:flex;justify-content:space-between;align-items:center;
  padding:18px clamp(18px,4vw,44px);
  background:linear-gradient(180deg,rgba(10,10,11,.82),rgba(10,10,11,0));backdrop-filter:blur(3px)}
.brand{display:flex;align-items:center;gap:11px;font-family:"Fraunces",serif;font-size:1.12rem;font-weight:600;letter-spacing:.01em}
.brand-mark{width:15px;height:15px;border-radius:50%;flex:none;
  background:radial-gradient(circle at 32% 30%,var(--amber),var(--amber-deep) 60%,#3a2410);
  box-shadow:0 0 0 1px rgba(232,176,106,.35),0 0 14px rgba(232,176,106,.35)}
.nav-links{display:flex;gap:clamp(12px,2vw,26px);align-items:center;font-size:.86rem;color:var(--dim)}
.nav-links a{transition:color .3s var(--ease)}
.nav-links a:hover{color:var(--ink)}
.nav-cta{border:1px solid var(--line);border-radius:40px;padding:8px 16px;color:var(--ink)!important;transition:border-color .3s,background .3s}
.nav-cta:hover{border-color:var(--amber);background:rgba(232,176,106,.08)}
@media(max-width:860px){.nav-links a:not(.nav-cta){display:none}}

/* ---------- hero ---------- */
.hero{max-width:var(--max);margin:0 auto;padding:clamp(120px,17vh,180px) clamp(18px,4vw,44px) clamp(56px,8vh,90px);
  display:grid;grid-template-columns:1fr;gap:clamp(34px,5vw,60px);align-items:center}
@media(min-width:1000px){.hero{grid-template-columns:0.95fr 1.05fr}}
.eyebrow{margin-bottom:1.3rem}
.hero-sub{max-width:52ch;margin:1.7rem 0 2rem;color:var(--dim);font-size:clamp(1rem,1.25vw,1.16rem)}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;border-radius:40px;padding:13px 24px;font-size:.9rem;font-weight:500;
  border:1px solid var(--line);transition:transform .4s var(--ease),background .3s,border-color .3s,color .3s;cursor:pointer}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--amber);color:#140d03;border-color:var(--amber)}
.btn-primary:hover{background:#f0bd7c;box-shadow:0 10px 34px -12px rgba(232,176,106,.6)}
.btn-ghost:hover{border-color:var(--amber);color:var(--amber)}

/* ---------- compare (before/after) ---------- */
.compare{width:100%}
.compare-stage{position:relative;aspect-ratio:3/2;border-radius:var(--r);overflow:hidden;
  background:linear-gradient(135deg,#17151a,#0c0b0d);box-shadow:0 40px 90px -40px rgba(0,0,0,.9),0 0 0 1px var(--line);
  touch-action:none;cursor:ew-resize;user-select:none}
.compare-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.compare-raw{position:absolute;inset:0;overflow:hidden;clip-path:inset(0 50% 0 0);will-change:clip-path}
/* the RAW = same frame, flattened: lifted blacks, low contrast, cool/green cast, desaturated */
.compare-raw .compare-img{filter:saturate(.55) contrast(.82) brightness(1.08) sepia(.06) hue-rotate(-8deg)}
.compare-raw::after{content:"";position:absolute;inset:0;background:rgba(90,110,120,.12)}
.tag{position:absolute;top:14px;font-family:"JetBrains Mono",monospace;font-size:.66rem;letter-spacing:.16em;
  padding:5px 10px;border-radius:30px;background:rgba(10,10,11,.72);border:1px solid var(--line);backdrop-filter:blur(4px)}
.tag-raw{left:14px;color:var(--teal)}
.tag-dev{right:14px;color:var(--amber)}
.compare-handle{position:absolute;top:0;bottom:0;left:50%;width:44px;transform:translateX(-50%);
  background:none;border:0;cursor:ew-resize;display:grid;place-items:center;padding:0}
.handle-line{position:absolute;top:0;bottom:0;left:50%;width:2px;transform:translateX(-50%);background:rgba(242,237,228,.9);box-shadow:0 0 12px rgba(0,0,0,.5)}
.handle-grip{position:relative;width:38px;height:38px;border-radius:50%;background:rgba(10,10,11,.66);
  border:1.5px solid rgba(242,237,228,.9);backdrop-filter:blur(4px);display:grid;place-items:center;transition:transform .3s var(--ease)}
.handle-grip::before,.handle-grip::after{content:"";position:absolute;width:0;height:0;border-block:5px solid transparent}
.handle-grip::before{border-right:7px solid var(--ink);left:9px}
.handle-grip::after{border-left:7px solid var(--ink);right:9px}
.compare-handle:hover .handle-grip,.compare-handle:focus-visible .handle-grip{transform:scale(1.12)}
.compare-handle:focus-visible{outline:none}
.compare-handle:focus-visible .handle-grip{box-shadow:0 0 0 3px var(--amber)}
.compare-meta{display:flex;gap:16px;flex-wrap:wrap;margin-top:14px;font-family:"JetBrains Mono",monospace;
  font-size:.72rem;color:var(--faint);letter-spacing:.04em}
.compare-hint{margin-left:auto;color:var(--amber);opacity:.9}

/* ---------- section shell ---------- */
section{padding:clamp(72px,11vh,140px) clamp(18px,4vw,44px)}
.section-head{max-width:var(--max);margin:0 auto 3rem}
.kicker{margin-bottom:1rem}
.lede{max-width:56ch;margin-top:1.1rem;color:var(--dim);font-size:1.08rem}
.lede strong{color:var(--ink);font-weight:600}

/* ---------- develop panel ---------- */
.develop{border-top:1px solid var(--line-2)}
.panel{max-width:var(--max);margin:0 auto;display:grid;grid-template-columns:1fr;gap:22px;
  background:var(--stage-2);border:1px solid var(--line);border-radius:calc(var(--r) + 4px);padding:clamp(16px,2.4vw,24px)}
@media(min-width:920px){.panel{grid-template-columns:1.25fr .9fr}}
.panel-view{position:relative;aspect-ratio:3/2;border-radius:var(--r);overflow:hidden;background:#000;box-shadow:inset 0 0 0 1px var(--line-2)}
.panel-img{width:100%;height:100%;object-fit:cover;transition:filter .12s linear}
.panel-original{position:absolute;left:12px;bottom:12px;font-family:"JetBrains Mono",monospace;font-size:.66rem;
  letter-spacing:.14em;color:var(--dim);background:rgba(10,10,11,.7);border:1px solid var(--line);
  padding:6px 11px;border-radius:30px;cursor:pointer;user-select:none;transition:color .3s,border-color .3s}
.panel-original:hover{color:var(--ink);border-color:var(--amber)}
.panel-histogram{position:absolute;right:12px;top:12px;width:120px;height:52px;border-radius:8px;
  background:rgba(10,10,11,.62);border:1px solid var(--line);overflow:hidden}
.panel-histogram canvas{width:100%;height:100%;display:block}
.panel-rack{display:flex;flex-direction:column;gap:14px}
.rack-top{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}
.preset-pill{font-family:"JetBrains Mono",monospace;font-size:.7rem;letter-spacing:.1em;color:var(--amber);
  border:1px solid var(--line);border-radius:30px;padding:6px 12px}
.rack-btns{display:flex;gap:8px}
.mini{font-family:"Inter Tight",sans-serif;font-size:.8rem;font-weight:500;color:#140d03;background:var(--amber);
  border:0;border-radius:30px;padding:8px 13px;cursor:pointer;transition:transform .3s var(--ease),background .3s}
.mini:hover{transform:translateY(-1px);background:#f0bd7c}
.mini-ghost{background:transparent;color:var(--dim);border:1px solid var(--line)}
.mini-ghost:hover{color:var(--ink);border-color:var(--amber);background:transparent}
.sliders{display:flex;flex-direction:column;gap:2px}
.slider{padding:9px 2px;border-bottom:1px solid var(--line-2)}
.slider:last-child{border-bottom:0}
.slider-top{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:6px}
.slider-name{font-size:.86rem;color:var(--dim)}
.slider-val{font-family:"JetBrains Mono",monospace;font-size:.8rem;color:var(--ink);font-variant-numeric:tabular-nums}
.slider input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:3px;border-radius:3px;
  background:var(--line);outline:none;cursor:pointer}
.slider input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:15px;height:15px;border-radius:50%;
  background:var(--ink);border:2px solid var(--stage-2);box-shadow:0 0 0 1px var(--amber);transition:transform .15s}
.slider input[type=range]::-moz-range-thumb{width:15px;height:15px;border-radius:50%;background:var(--ink);border:2px solid var(--stage-2);box-shadow:0 0 0 1px var(--amber)}
.slider input[type=range]:active::-webkit-slider-thumb{transform:scale(1.2)}
.slider input[type=range]:focus-visible::-webkit-slider-thumb{box-shadow:0 0 0 3px var(--amber)}
.nojs{color:var(--dim);font-size:.9rem}

/* ---------- engine ---------- */
.engine{border-top:1px solid var(--line-2)}
.engine-grid{max-width:var(--max);margin:0 auto;display:grid;grid-template-columns:1fr;gap:1px;background:var(--line-2);
  border:1px solid var(--line-2);border-radius:var(--r);overflow:hidden}
@media(min-width:800px){.engine-grid{grid-template-columns:repeat(3,1fr)}}
.ecard{background:var(--stage);padding:clamp(24px,3vw,38px)}
.ecard-n{font-family:"JetBrains Mono",monospace;font-size:.75rem;color:var(--amber);letter-spacing:.1em}
.ecard h3{margin:14px 0 10px}
.ecard p{color:var(--dim);font-size:.98rem}
.stats{max-width:var(--max);margin:clamp(44px,6vh,72px) auto 0;display:grid;grid-template-columns:repeat(2,1fr);gap:26px 20px}
@media(min-width:760px){.stats{grid-template-columns:repeat(4,1fr)}}
.stat{border-left:1px solid var(--line);padding-left:16px}
.s-num{font-family:"Fraunces",serif;font-weight:500;font-size:clamp(2.2rem,4.6vw,3.4rem);line-height:1;color:var(--ink)}
.s-suf{font-family:"Fraunces",serif;font-size:1.1rem;color:var(--amber);margin-left:4px}
.s-lbl{display:block;margin-top:8px;font-family:"JetBrains Mono",monospace;font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:var(--faint)}

/* ---------- looks ---------- */
.looks{border-top:1px solid var(--line-2)}
.look-row{max-width:var(--max);margin:0 auto;display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
@media(min-width:680px){.look-row{grid-template-columns:repeat(3,1fr)}}
@media(min-width:1000px){.look-row{grid-template-columns:repeat(6,1fr)}}
.look{position:relative;aspect-ratio:4/5;border-radius:12px;overflow:hidden;border:1px solid var(--line);
  cursor:pointer;background:#000;transition:transform .45s var(--ease),border-color .3s}
.look img{width:100%;height:100%;object-fit:cover;transition:filter .3s}
.look:hover{transform:translateY(-4px);border-color:var(--amber)}
.look[aria-selected=true]{border-color:var(--amber);box-shadow:0 0 0 1px var(--amber)}
.look-name{position:absolute;left:8px;bottom:8px;font-family:"JetBrains Mono",monospace;font-size:.6rem;
  letter-spacing:.1em;color:var(--ink);background:rgba(10,10,11,.66);padding:4px 8px;border-radius:20px}

/* ---------- closer ---------- */
.closer{text-align:center;padding-block:clamp(90px,16vh,180px)}
.closer-line{font-family:"Fraunces",serif;font-weight:400;font-size:clamp(2.2rem,7vw,5rem);line-height:1.05;margin-bottom:2rem}
.closer-line em{color:var(--amber);font-style:italic}

/* ---------- footer ---------- */
.footer{border-top:1px solid var(--line);padding:clamp(40px,6vh,64px) clamp(18px,4vw,44px)}
.foot-top{max-width:var(--max);margin:0 auto 22px;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.foot-brand{font-family:"Fraunces",serif;font-size:1.4rem;font-weight:600}
.foot-links{display:flex;gap:18px;font-size:.86rem;color:var(--dim)}
.foot-links a:hover{color:var(--amber)}
.foot-bottom{max-width:var(--max);margin:0 auto;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-family:"JetBrains Mono",monospace;font-size:.7rem;color:var(--faint);letter-spacing:.03em}
.foot-bottom a{color:var(--dim)}.foot-bottom a:hover{color:var(--amber)}

/* ---------- reveal + motion ---------- */
.js .reveal{opacity:0;transform:translateY(24px)}
.js .reveal.is-in{opacity:1;transform:none;transition:opacity 1s var(--ease),transform 1s var(--ease)}
.js .hero-title .line{overflow:hidden;display:block}
.js .hero-title .line>span{display:inline-block;transform:translateY(112%);transition:transform 1.1s var(--ease)}
.hero.loaded .hero-title .line>span{transform:translateY(0)}
.hero.loaded .reveal{opacity:1;transform:none;transition:opacity 1s var(--ease),transform 1s var(--ease)}
.hero .eyebrow{transition-delay:.05s}
.hero .line:nth-child(1)>span{transition-delay:.15s}
.hero .line:nth-child(2)>span{transition-delay:.28s}
.hero .hero-sub{transition-delay:.42s}.hero .hero-actions{transition-delay:.54s}.hero .compare{transition-delay:.4s}

a:focus-visible,.btn:focus-visible,.mini:focus-visible,.look:focus-visible,.panel-original:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:6px}

@media (prefers-reduced-motion:reduce){
  .reveal,.js .reveal{opacity:1!important;transform:none!important;transition:none!important}
  .hero-title .line>span{transform:none!important;transition:none!important}
  .grain{animation:none!important}
  *{scroll-behavior:auto!important}
}