/* Shared styles for ML Studios case-study pages. Mirrors the landing page's system. */
:root {
  --bg:#EAEBEF; --bg-2:#E1E2E8; --panel:#FBFBFD;
  --ink:#14161C; --ink-soft:#4E5361; --ink-faint:#868C9B;
  --line:rgba(20,22,28,0.13); --line-soft:rgba(20,22,28,0.07); --grid:rgba(20,22,28,0.04);
  --accent:#E0360D; --accent-2:#FF4A21; --live:#0B8F5E; --live-dot:#12C878; --sun:#FFC93C;
  --font-display:'Archivo',system-ui,sans-serif;
  --font-body:'IBM Plex Sans',system-ui,sans-serif;
  --font-mono:'IBM Plex Mono',ui-monospace,'SF Mono',monospace;
  --maxw:1000px; --pad:clamp(1.1rem,4vw,2.6rem);
}
@media (prefers-color-scheme: dark){ :root:not([data-theme="light"]){
  --bg:#0A0C11; --bg-2:#0E1017; --panel:#13161F;
  --ink:#EAECF3; --ink-soft:#A2A8B8; --ink-faint:#6C7382;
  --line:rgba(234,236,243,0.14); --line-soft:rgba(234,236,243,0.07); --grid:rgba(234,236,243,0.04);
  --accent:#FF6A45; --accent-2:#FF5A33; --live:#2FDDA0; --live-dot:#2FDDA0;
}}
:root[data-theme="dark"]{
  --bg:#0A0C11; --bg-2:#0E1017; --panel:#13161F;
  --ink:#EAECF3; --ink-soft:#A2A8B8; --ink-faint:#6C7382;
  --line:rgba(234,236,243,0.14); --line-soft:rgba(234,236,243,0.07); --grid:rgba(234,236,243,0.04);
  --accent:#FF6A45; --accent-2:#FF5A33; --live:#2FDDA0; --live-dot:#2FDDA0;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{margin:0;font-family:var(--font-body);color:var(--ink);background-color:var(--bg);
  line-height:1.65;font-size:16px;-webkit-font-smoothing:antialiased;}
a{color:inherit;} img{display:block;max-width:100%;}
h1,h2,h3{font-family:var(--font-display);text-wrap:balance;margin:0;letter-spacing:-0.018em;}
p{margin:0;}
.wrap{max-width:var(--maxw);margin:0 auto;padding-inline:var(--pad);}
.eyebrow{font-family:var(--font-mono);font-size:0.7rem;letter-spacing:0.2em;text-transform:uppercase;
  color:var(--ink-faint);display:inline-flex;align-items:center;gap:0.6em;}
.eyebrow::before{content:"";width:20px;height:1px;background:var(--accent);}

/* header */
header{position:sticky;top:0;z-index:50;backdrop-filter:blur(10px);
  background:color-mix(in srgb,var(--bg) 80%,transparent);border-bottom:1px solid var(--line-soft);}
.bar{display:flex;align-items:center;justify-content:space-between;gap:1rem;height:64px;
  max-width:var(--maxw);margin:0 auto;padding-inline:var(--pad);}
.brand{display:flex;align-items:baseline;gap:0.6rem;text-decoration:none;}
.brand .mark{font-family:var(--font-display);font-weight:900;font-size:1.4rem;line-height:1;text-transform:uppercase;}
.brand .mark b{color:var(--accent);}
.brand .tag{font-family:var(--font-mono);font-size:0.66rem;color:var(--ink-faint);}
nav.links{display:flex;align-items:center;gap:1.5rem;}
nav.links a{font-family:var(--font-mono);font-size:0.75rem;text-decoration:none;color:var(--ink-soft);transition:color .18s;}
nav.links a:hover{color:var(--accent);}
.toggle{font-family:var(--font-mono);font-size:0.68rem;background:transparent;color:var(--ink-soft);
  border:1px solid var(--line);border-radius:999px;padding:0.3rem 0.7rem;cursor:pointer;transition:all .18s;}
.toggle:hover{border-color:var(--accent);color:var(--accent);}
@media (max-width:680px){ .brand .tag{display:none;} }

/* hero box */
.hero{padding:clamp(1.2rem,3vw,2rem) 0 clamp(1rem,2.5vw,1.6rem);}
.back{font-family:var(--font-mono);font-size:0.74rem;color:var(--ink-soft);text-decoration:none;
  display:inline-flex;align-items:center;gap:0.4rem;margin-bottom:0.9rem;transition:color .16s;}
.back:hover{color:var(--accent);} .back .a{transition:transform .16s;} .back:hover .a{transform:translateX(-3px);}
.herobox{position:relative;overflow:hidden;border-radius:6px;color:#F0F1F5;
  background:radial-gradient(120% 130% at 80% 0%,#10131b,#0a0c11 62%);
  border:1px solid rgba(240,241,245,0.16);padding:clamp(1.4rem,3.4vw,2.6rem);}
.herobox::before{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(240,241,245,0.05) 1px,transparent 1px),linear-gradient(90deg,rgba(240,241,245,0.05) 1px,transparent 1px);
  background-size:42px 42px;mask-image:radial-gradient(120% 120% at 75% 25%,#000 45%,transparent 100%);}
.hb-brk{position:absolute;width:22px;height:22px;border:2px solid var(--accent-2);z-index:2;}
.hb-brk.tl{top:12px;left:12px;border-right:0;border-bottom:0;}
.hb-brk.br{bottom:12px;right:12px;border-left:0;border-top:0;}
.herobox>*:not(.hb-brk){position:relative;z-index:2;}
.herobox .kicker{font-family:var(--font-mono);font-size:0.68rem;letter-spacing:0.16em;text-transform:uppercase;color:rgba(240,241,245,0.6);}
.herobox h1{color:#F0F1F5;font-weight:900;font-size:clamp(2rem,5vw,3.2rem);line-height:1.03;margin:0.7rem 0 0;}
.herobox .lede{color:rgba(240,241,245,0.82);margin-top:0.9rem;max-width:52ch;font-size:clamp(1rem,1.4vw,1.12rem);}
.pills{display:flex;flex-wrap:wrap;gap:0.4rem;margin-top:1.1rem;}
.pill{font-family:var(--font-mono);font-size:0.66rem;letter-spacing:0.05em;text-transform:uppercase;
  padding:0.24rem 0.6rem;border-radius:3px;border:1px solid rgba(240,241,245,0.2);color:rgba(240,241,245,0.72);
  display:inline-flex;align-items:center;gap:0.4rem;}
.pill.live{color:var(--live-dot);border-color:color-mix(in srgb,var(--live-dot) 50%,transparent);}
.pill.live .d{width:6px;height:6px;border-radius:50%;background:var(--live-dot);}
.pill.award{background:var(--sun);color:#14161C;border-color:var(--sun);}
.actions{display:flex;flex-wrap:wrap;gap:0.6rem;margin-top:1.4rem;}
.btn{font-family:var(--font-mono);font-size:0.76rem;text-decoration:none;padding:0.55rem 0.95rem;border-radius:3px;
  display:inline-flex;align-items:center;gap:0.5rem;transition:all .18s;border:1px solid rgba(240,241,245,0.24);color:#F0F1F5;}
.btn .arw{transition:transform .18s;} .btn:hover .arw{transform:translateX(3px);}
.btn.primary{background:var(--accent-2);color:#fff;border-color:var(--accent-2);}
.btn.primary:hover{filter:brightness(1.08);}
.btn.ghost:hover{border-color:var(--accent-2);color:var(--accent-2);}

/* body sections */
main{padding-bottom:1rem;}
.section{padding:clamp(1.8rem,4.5vw,3rem) 0;border-top:1px solid var(--line-soft);}
.section:first-of-type{border-top:0;}
.section h2{font-weight:800;font-size:clamp(1.3rem,2.8vw,1.8rem);margin-bottom:1rem;}
.prose{max-width:65ch;color:var(--ink-soft);font-size:1.04rem;}
.prose p+p{margin-top:0.9rem;}
.prose strong{color:var(--ink);}
.lead{font-size:clamp(1.05rem,1.6vw,1.2rem);color:var(--ink);max-width:60ch;}

/* method list */
.method{list-style:none;padding:0;margin:0;display:grid;gap:1rem;}
.method li{position:relative;padding-left:2.2rem;}
.method li .n{position:absolute;left:0;top:0.05em;font-family:var(--font-mono);font-size:0.75rem;color:var(--accent);
  border:1px solid var(--line);border-radius:4px;width:1.6rem;height:1.6rem;display:inline-flex;align-items:center;justify-content:center;}
.method li h3{font-family:var(--font-display);font-weight:700;font-size:1.05rem;margin-bottom:0.2rem;}
.method li p{color:var(--ink-soft);font-size:0.96rem;}

/* metrics */
.metrics{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:1rem;}
.metric{border:1px solid rgba(240,241,245,0.12);border-radius:6px;padding:1.1rem 1.2rem;
  background:radial-gradient(120% 130% at 80% 0%,#10131b,#0a0c11 72%);}
.metric .big{font-family:var(--font-display);font-weight:900;font-size:2rem;color:var(--sun);line-height:1;
  font-variant-numeric:tabular-nums;}
.metric .cap{font-family:var(--font-mono);font-size:0.7rem;color:rgba(240,241,245,0.6);margin-top:0.4rem;}

/* tech chips */
.tech{display:flex;flex-wrap:wrap;gap:0.5rem;}
.chip{font-family:var(--font-mono);font-size:0.74rem;color:var(--ink-soft);padding:0.3rem 0.65rem;
  border:1px solid var(--line);border-radius:4px;background:var(--bg-2);}

/* figures */
.figure{border:1px solid var(--line);border-radius:6px;overflow:hidden;background:var(--panel);margin-top:0.4rem;}
.figure img{width:100%;height:auto;}
.figure figcaption{font-family:var(--font-mono);font-size:0.7rem;color:var(--ink-faint);padding:0.6rem 0.8rem;border-top:1px solid var(--line-soft);}
.gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1rem;}

/* footer */
footer{padding:clamp(2rem,5vw,3rem) 0 3rem;border-top:1px solid var(--line);}
.foot{display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;align-items:center;}
.foot a{color:var(--ink-soft);text-decoration:none;font-family:var(--font-mono);font-size:0.8rem;}
.foot a:hover{color:var(--accent);}
.colophon{margin-top:1.6rem;font-family:var(--font-mono);font-size:0.7rem;color:var(--ink-faint);}
@media (prefers-reduced-motion:reduce){*{animation:none!important;scroll-behavior:auto;}}