/* ══════════════════════════════════════════════════════════════════════
   BitWithBite — shared case-study stylesheet
   Extracted 2026-08-11 from projects/ai-cad.html so the seven project
   pages added in the recovery pass stay visually identical to the three
   that already existed, without copying ~200 lines of CSS into each.

   The original three pages keep their inline styles untouched.
   ══════════════════════════════════════════════════════════════════════ */

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
:root{
  --ink:#05091a;--ink2:#0a1230;
  --glass:rgba(255,255,255,.03);--rim:rgba(255,255,255,.08);--rim2:rgba(255,255,255,.16);
  --txt:#eef3ff;--txt2:#8ca8d8;--txt3:#4a68a0;--txt4:#1e3260;
  --acc:#8b5cf6;--acc2:#a78bfa;
  --teal:#2de8c0;--amber:#fbbf24;--blue:#4f9eff;--green:#4ade80;--pink:#f472b6;--red:#f87171;
  --grd-acc:linear-gradient(135deg,#8b5cf6,#7c3aed);
  --r:12px;--rfull:9999px;
  --ff-d:'Syne',sans-serif;--ff-b:'DM Sans',sans-serif;--ff-m:'JetBrains Mono',monospace;
}
body{background:var(--ink);color:var(--txt);font-family:var(--ff-b);line-height:1.65;
  -webkit-font-smoothing:antialiased;overflow-x:hidden}
a{text-decoration:none;color:inherit}
img{max-width:100%;height:auto}

.bg-mesh{position:fixed;inset:0;z-index:0;pointer-events:none;
  background:radial-gradient(ellipse 80% 60% at 15% 5%,rgba(45,232,192,.07) 0%,transparent 55%),
             radial-gradient(ellipse 60% 50% at 85% 90%,rgba(139,92,246,.09) 0%,transparent 50%)}
.bg-grid{position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.016;
  background-image:linear-gradient(rgba(139,92,246,.5) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(139,92,246,.5) 1px,transparent 1px);
  background-size:60px 60px}
.page{position:relative;z-index:1}

nav{position:sticky;top:0;z-index:600;display:flex;align-items:center;justify-content:space-between;
  padding:.85rem 2rem;background:rgba(5,9,26,.92);backdrop-filter:blur(28px);
  border-bottom:1px solid var(--rim);gap:1rem;flex-wrap:wrap}
.nav-logo{display:flex;align-items:center;gap:12px;cursor:pointer}
.nav-logo img{width:52px;height:38px;object-fit:contain;filter:drop-shadow(0 5px 12px rgba(139,92,246,.4))}
.nav-name{font-family:var(--ff-d);font-weight:800;font-size:1rem;letter-spacing:-.02em}
.nav-sub{font-size:.58rem;color:var(--txt4)}
.nav-links{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.nav-link{padding:7px 13px;border-radius:var(--rfull);color:var(--txt3);font-size:.78rem;font-weight:600;transition:.18s}
.nav-link:hover{color:var(--acc2);background:rgba(139,92,246,.08)}
.btn-back{padding:8px 18px;border-radius:var(--rfull);background:var(--grd-acc);color:#fff;border:none;
  font-family:var(--ff-d);font-weight:700;font-size:.78rem;box-shadow:0 4px 18px rgba(139,92,246,.35);transition:.18s}
.btn-back:hover{opacity:.88;transform:translateY(-1px)}

.wrap{max-width:1080px;margin:0 auto;padding:0 2rem}
.sect{padding:3.4rem 0}
.sect-label{display:inline-flex;align-items:center;gap:8px;font-size:.66rem;font-weight:700;
  letter-spacing:.12em;text-transform:uppercase;color:var(--teal);margin-bottom:.8rem}
.sect-label::before{content:'';width:18px;height:2px;background:linear-gradient(135deg,#2de8c0,#4f9eff);border-radius:2px}
h2{font-family:var(--ff-d);font-size:clamp(1.5rem,3vw,2.1rem);font-weight:800;letter-spacing:-.025em;
  line-height:1.15;margin-bottom:1rem}
h3{font-family:var(--ff-d);font-size:1.02rem;font-weight:800;margin:0 0 .7rem}
p{color:var(--txt2);line-height:1.85;font-size:.94rem}
p + p{margin-top:.85rem}
p strong,li strong{color:var(--txt)}
.hl{background:linear-gradient(135deg,#2de8c0,#a78bfa);-webkit-background-clip:text;
  -webkit-text-fill-color:transparent;background-clip:text}
code{font-family:var(--ff-m);font-size:.85em;background:rgba(45,232,192,.1);
  border:1px solid rgba(45,232,192,.2);padding:1px 6px;border-radius:5px;color:var(--teal);overflow-wrap:anywhere}
pre{max-width:100%;overflow-x:auto;overflow-wrap:anywhere;word-break:break-word;
  font-family:var(--ff-m);font-size:.78rem;line-height:1.7;color:var(--txt2);white-space:pre-wrap}

.hero{padding:3.6rem 0 1.5rem}
.crumb{font-size:.74rem;color:var(--txt3);margin-bottom:1.2rem}
.crumb a{color:var(--acc2)}
.hero h1{font-family:var(--ff-d);font-size:clamp(1.9rem,4.6vw,3rem);font-weight:800;
  line-height:1.1;letter-spacing:-.03em;margin-bottom:.9rem}
.hero .sub{font-size:1.02rem;color:var(--txt2);line-height:1.8;max-width:780px}
.meta-line{font-size:.83rem;color:var(--txt3);margin-top:1rem;line-height:1.8}
.meta-line b{color:var(--txt2)}
.badges{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:1.2rem}
.badge{font-size:.68rem;font-weight:700;padding:4px 12px;border-radius:var(--rfull);font-family:var(--ff-m)}
.b-th{background:rgba(45,232,192,.13);color:var(--teal);border:1px solid rgba(45,232,192,.3)}
.b-cv{background:rgba(244,114,182,.12);color:var(--pink);border:1px solid rgba(244,114,182,.28)}
.b-dl{background:rgba(139,92,246,.15);color:var(--acc2);border:1px solid rgba(139,92,246,.28)}
.b-py{background:rgba(79,158,255,.12);color:var(--blue);border:1px solid rgba(79,158,255,.28)}

/* ── Honest status chips. One per page, stated in the hero. ────────────── */
.status{display:inline-flex;align-items:center;gap:8px;font-family:var(--ff-m);font-size:.72rem;
  font-weight:700;padding:6px 15px;border-radius:var(--rfull);letter-spacing:.03em}
.st-live{background:rgba(74,222,128,.13);color:var(--green);border:1px solid rgba(74,222,128,.35)}
.st-local{background:rgba(79,158,255,.12);color:var(--blue);border:1px solid rgba(79,158,255,.32)}
.st-proto{background:rgba(139,92,246,.14);color:var(--acc2);border:1px solid rgba(139,92,246,.32)}
.st-dev{background:rgba(251,191,36,.12);color:var(--amber);border:1px solid rgba(251,191,36,.32)}
.st-hist{background:rgba(45,232,192,.11);color:var(--teal);border:1px solid rgba(45,232,192,.3)}
.st-arch{background:rgba(248,113,113,.11);color:var(--red);border:1px solid rgba(248,113,113,.32)}

.metrics{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin-top:1.8rem}
.metric{background:var(--ink2);border:1px solid var(--rim);border-radius:12px;padding:1.1rem;text-align:center}
.metric b{display:block;font-family:var(--ff-d);font-size:1.3rem;font-weight:900;color:var(--teal);line-height:1.25}
.metric span{display:block;font-size:.69rem;color:var(--txt3);margin-top:.3rem;line-height:1.4}

.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.2rem;margin-top:1.5rem}
.card{background:var(--ink2);border:1px solid var(--rim);border-radius:16px;padding:1.5rem;transition:.18s}
.card:hover{border-color:rgba(45,232,192,.35);transform:translateY(-3px)}
.card h3{display:flex;align-items:center;gap:9px;font-size:.94rem}
.card ul{list-style:none;display:flex;flex-direction:column;gap:.55rem}
.card li{font-size:.85rem;color:var(--txt2);line-height:1.65;padding-left:18px;position:relative}
.card li::before{content:'▸';position:absolute;left:0;color:var(--teal);font-weight:700}
.card .ico{font-size:1.3rem;margin-bottom:.45rem}

.chal{background:var(--ink2);border:1px solid var(--rim);border-left:3px solid var(--teal);
  border-radius:12px;padding:1.4rem 1.6rem;margin-top:1rem}
.chal h3{font-size:.94rem;margin-bottom:.5rem;color:var(--txt)}
.chal .lbl{font-family:var(--ff-m);font-size:.65rem;font-weight:700;letter-spacing:.09em;
  text-transform:uppercase;color:var(--txt4);display:block;margin:.75rem 0 .2rem}
.chal p{font-size:.87rem;margin:0}

table.data{width:100%;border-collapse:collapse;font-size:.83rem;min-width:480px}
table.data th{text-align:left;padding:.6rem;color:var(--txt3);font-weight:700;border-bottom:1px solid var(--rim2)}
table.data td{padding:.55rem .6rem;color:var(--txt2);border-bottom:1px solid var(--rim);vertical-align:top}
table.data td.n,table.data th.n{text-align:right}
table.data tr.win td{background:rgba(45,232,192,.07);color:var(--teal);font-weight:800}
.scroll{overflow-x:auto;margin-top:1.3rem}
.ok{color:var(--green);font-weight:700}
.no{color:var(--red);font-weight:700}
.warn{color:var(--amber);font-weight:700}

.stack{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:1rem;margin-top:1.4rem}
.stack-col{background:var(--ink2);border:1px solid var(--rim);border-radius:14px;padding:1.2rem}
.stack-col b{display:block;font-family:var(--ff-d);font-size:.83rem;font-weight:800;margin-bottom:.65rem;color:var(--teal)}
.pills{display:flex;flex-wrap:wrap;gap:6px}
.pill{font-size:.72rem;font-weight:600;color:var(--txt2);background:var(--glass);
  border:1px solid var(--rim);padding:4px 11px;border-radius:var(--rfull)}

.note{background:rgba(139,92,246,.06);border:1px solid rgba(139,92,246,.25);border-left:3px solid var(--acc);
  border-radius:12px;padding:1.3rem 1.5rem;margin-top:1.4rem}
.note h3{color:var(--acc2)}
.note p{font-size:.87rem}
/* Amber = a caveat the reader must not miss. Red = a hard limitation. */
.note.warn-note{background:rgba(251,191,36,.06);border-color:rgba(251,191,36,.28);border-left-color:var(--amber)}
.note.warn-note h3{color:var(--amber)}
.note.stop-note{background:rgba(248,113,113,.06);border-color:rgba(248,113,113,.28);border-left-color:var(--red)}
.note.stop-note h3{color:var(--red)}

.shot-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(255px,1fr));gap:1rem;margin-top:1.4rem}
.shot{background:var(--ink2);border:1px solid var(--rim);border-radius:14px;overflow:hidden;transition:.18s;cursor:zoom-in}
.shot:hover{border-color:rgba(139,92,246,.45);transform:translateY(-3px);box-shadow:0 10px 30px rgba(0,0,0,.4)}
.shot img{width:100%;height:auto;display:block;aspect-ratio:16/9;object-fit:cover;background:#05091a}
.shot-cap{padding:.7rem .85rem}
.shot-cap b{display:block;font-size:.79rem;font-weight:700;color:var(--txt);line-height:1.35}
.shot-cap span{display:block;font-size:.73rem;color:var(--txt3);margin-top:.15rem;line-height:1.45}

/* ── Pipeline diagram, used where a stage list beats prose ─────────────── */
.flow{display:flex;flex-wrap:wrap;align-items:stretch;gap:8px;margin-top:1.4rem}
.flow-step{flex:1 1 150px;background:var(--ink2);border:1px solid var(--rim);border-radius:12px;padding:.9rem 1rem}
.flow-step b{display:block;font-family:var(--ff-m);font-size:.68rem;color:var(--teal);margin-bottom:.25rem}
.flow-step span{display:block;font-size:.79rem;color:var(--txt2);line-height:1.5}
.flow-step.dead{border-color:rgba(248,113,113,.3);background:rgba(248,113,113,.05)}
.flow-step.dead b{color:var(--red)}

.cta{background:linear-gradient(135deg,rgba(45,232,192,.06),rgba(139,92,246,.09));
  border:1px solid rgba(139,92,246,.25);border-radius:20px;padding:2.4rem;text-align:center;margin:3rem 0}
.cta-btns{display:flex;gap:.7rem;flex-wrap:wrap;justify-content:center;margin-top:1.4rem}
.btn-p{padding:13px 28px;border-radius:var(--rfull);background:var(--grd-acc);color:#fff;
  font-family:var(--ff-d);font-weight:700;font-size:.88rem;box-shadow:0 6px 28px rgba(139,92,246,.35);
  transition:.2s;display:inline-block}
.btn-p:hover{opacity:.9;transform:translateY(-2px)}
.btn-o{padding:13px 28px;border-radius:var(--rfull);background:var(--glass);color:var(--txt2);
  border:1px solid var(--rim);font-family:var(--ff-d);font-weight:700;font-size:.88rem;
  transition:.2s;display:inline-block}
.btn-o:hover{border-color:var(--acc);color:var(--acc2);transform:translateY(-2px)}

footer{border-top:1px solid var(--rim);padding:2rem;display:flex;flex-wrap:wrap;gap:14px;
  align-items:center;justify-content:space-between;font-size:.8rem;color:var(--txt3);max-width:1080px;margin:0 auto}
footer a:hover{color:var(--acc2)}

#lb{position:fixed;inset:0;z-index:9998;background:rgba(3,6,18,.94);backdrop-filter:blur(8px);
  display:none;align-items:center;justify-content:center;padding:2rem;cursor:zoom-out}
#lb.on{display:flex}
#lb img{max-width:94vw;max-height:82vh;border-radius:10px;background:#fff}
#lbCap{position:absolute;bottom:1.4rem;left:50%;transform:translateX(-50%);max-width:760px;
  text-align:center;font-size:.83rem;color:var(--txt2);line-height:1.6;padding:0 1rem}

@media(max-width:640px){
  nav{padding:.75rem 1.1rem}
  .wrap{padding:0 1.2rem}
  .sect{padding:2.4rem 0}
  .cta{padding:1.6rem}
  .chal{padding:1.1rem 1.2rem}
}
@media(max-width:480px){
  .wrap{padding:0 1rem}
  pre{font-size:.7rem;line-height:1.6}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .cards,.stack{grid-template-columns:1fr}
  .shot-grid{grid-template-columns:1fr}
}