/* ============================================================
   AEROGENESIS MAIN SITE — shared stylesheet v1.0-alpha
   Apple light system, extended from LP v5.16.
   Tokens: bg #f5f5f7 · ink #1d1d1f · orange #e8730c · blue #3c7bfa
   ============================================================ */
:root{
  --bg:#f5f5f7; --surface:#ffffff; --ink:#1d1d1f; --ink-2:#515154; --ink-3:#86868b;
  --orange:#e8730c; --orange-deep:#c96208; --blue:#3c7bfa;
  --hairline:rgba(29,29,31,.09); --shadow:0 4px 24px rgba(29,29,31,.07);
  --radius:20px; --radius-sm:12px;
  --font:-apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text","Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --w:1080px; --w-narrow:760px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);background:var(--bg);color:var(--ink);line-height:1.55;
  font-size:17px;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}

/* ---------- Nav: Apple-style glass bar ---------- */
.nav{position:sticky;top:0;z-index:100;background:rgba(245,245,247,.72);
  backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);
  border-bottom:1px solid var(--hairline)}
.nav-inner{max-width:var(--w);margin:0 auto;padding:0 22px;height:52px;
  display:flex;align-items:center;justify-content:space-between;gap:16px}
.nav-logo img{height:26px;width:auto}
.nav-links{display:flex;gap:26px;align-items:center;font-size:14px;color:var(--ink-2)}
.nav-links a:hover{color:var(--ink)}
.nav-cta{background:var(--orange);color:#fff;padding:7px 16px;border-radius:980px;
  font-size:14px;font-weight:600;transition:background .2s}
.nav-cta:hover{background:var(--orange-deep)}
.nav-toggle{display:none;background:none;border:0;font-size:24px;color:var(--ink);cursor:pointer}
@media(max-width:820px){
  .nav-links{position:fixed;inset:52px 0 auto 0;background:rgba(245,245,247,.97);
    backdrop-filter:blur(20px);flex-direction:column;padding:22px;gap:18px;
    border-bottom:1px solid var(--hairline);display:none}
  .nav-links.open{display:flex}
  .nav-toggle{display:block}
}

/* ---------- Type scale ---------- */
.eyebrow{display:inline-block;color:var(--orange);font-size:13px;font-weight:700;
  letter-spacing:.12em;text-transform:uppercase;margin-bottom:14px}
h1{font-size:clamp(38px,6.4vw,64px);line-height:1.05;letter-spacing:-.022em;font-weight:700}
h2{font-size:clamp(28px,4.4vw,44px);line-height:1.08;letter-spacing:-.018em;font-weight:700}
h3{font-size:clamp(20px,2.6vw,26px);letter-spacing:-.012em;font-weight:700}
.accent{color:var(--blue)}
.lede{font-size:clamp(18px,2.3vw,21px);color:var(--ink-2);max-width:640px;margin:18px auto 0}
p{color:var(--ink-2)}
.section{padding:clamp(64px,9vw,110px) 22px}
.container{max-width:var(--w);margin:0 auto}
.container-narrow{max-width:var(--w-narrow);margin:0 auto}
.center{text-align:center}

/* ---------- Buttons ---------- */
.btn{display:inline-block;padding:14px 30px;border-radius:980px;font-weight:600;
  font-size:17px;transition:transform .18s,background .2s,box-shadow .2s}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 8px 22px rgba(232,115,12,.28)}
.btn-primary:hover{background:var(--orange-deep);transform:translateY(-1px)}
.btn-ghost{color:var(--blue);font-weight:600}
.btn-ghost:hover{text-decoration:underline}
.btn-row{display:flex;gap:18px;justify-content:center;align-items:center;flex-wrap:wrap;margin-top:30px}

/* ---------- Hero ---------- */
.hero{padding:clamp(72px,11vw,130px) 22px clamp(48px,7vw,90px);text-align:center}
.hero .lede{margin-left:auto;margin-right:auto}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:#fff;
  border:1px solid var(--hairline);border-radius:980px;padding:7px 16px;font-size:14px;
  color:var(--ink-2);margin-bottom:26px;box-shadow:var(--shadow)}
.hero-badge b{color:var(--orange)}

/* ---------- Cards & grids ---------- */
.grid{display:grid;gap:22px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
@media(max-width:900px){.grid-3{grid-template-columns:1fr}.grid-2{grid-template-columns:1fr}}
.card{background:var(--surface);border-radius:var(--radius);padding:34px 30px;
  box-shadow:var(--shadow);border:1px solid rgba(29,29,31,.04)}
.card h3{margin-bottom:10px}
.card p{font-size:16px}
.card .btn-ghost{display:inline-block;margin-top:14px}

/* ---------- Stats strip ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;text-align:center}
@media(max-width:820px){.stats{grid-template-columns:repeat(2,1fr)}}
.stat b{display:block;font-size:clamp(28px,4vw,40px);letter-spacing:-.02em;color:var(--ink)}
.stat span{font-size:14px;color:var(--ink-3)}

/* ---------- Flight-plan (signature): 3-stage route ---------- */
.route{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:46px}
.route::before{content:"";position:absolute;top:26px;left:12%;right:12%;height:2px;
  background:repeating-linear-gradient(90deg,var(--blue) 0 10px,transparent 10px 18px);opacity:.5}
@media(max-width:900px){.route{grid-template-columns:1fr}.route::before{display:none}}
.route-stage{position:relative;background:var(--surface);border-radius:var(--radius);
  padding:56px 28px 30px;box-shadow:var(--shadow);text-align:left}
.route-dot{position:absolute;top:12px;left:50%;transform:translateX(-50%);
  width:30px;height:30px;border-radius:50%;background:var(--blue);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;
  box-shadow:0 0 0 6px var(--bg)}
.route-stage .where{font-size:13px;font-weight:700;letter-spacing:.1em;
  text-transform:uppercase;color:var(--orange);margin-bottom:8px}
.route-stage ul{list-style:none;margin-top:12px}
.route-stage li{font-size:15px;color:var(--ink-2);padding:5px 0 5px 24px;position:relative}
.route-stage li::before{content:"✓";position:absolute;left:0;color:var(--blue);font-weight:700}

/* ---------- Media / gallery ---------- */
.media{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:820px){.gallery{grid-template-columns:repeat(2,1fr)}}
.thumb{position:relative;width:100%;padding-top:66.66%;border-radius:var(--radius-sm);
  overflow:hidden;background:#e9e9ec;box-shadow:var(--shadow)}
.thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.cap{font-size:13px;color:var(--ink-3);margin-top:8px}

/* ---------- Mentors ---------- */
.mentor{display:grid;grid-template-columns:280px 1fr;gap:34px;align-items:center;
  background:var(--surface);border-radius:var(--radius);padding:34px;box-shadow:var(--shadow)}
@media(max-width:820px){.mentor{grid-template-columns:1fr}}
.mentor .thumb{padding-top:100%}
.mentor .role{color:var(--orange);font-size:13px;font-weight:700;letter-spacing:.1em;
  text-transform:uppercase}
.mentor .creds{font-size:14px;color:var(--ink-3);margin:6px 0 12px}

/* ---------- FAQ ---------- */
.faq details{background:var(--surface);border-radius:var(--radius-sm);
  box-shadow:var(--shadow);margin-bottom:12px;overflow:hidden}
.faq summary{cursor:pointer;padding:20px 24px;font-weight:600;font-size:17px;
  list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--blue);font-size:22px;font-weight:400}
.faq details[open] summary::after{content:"–"}
.faq .a{padding:0 24px 20px;color:var(--ink-2);font-size:16px}

/* ---------- CTA band ---------- */
.cta-band{background:var(--ink);border-radius:calc(var(--radius) + 8px);
  padding:clamp(44px,7vw,72px) 30px;text-align:center;color:#fff}
.cta-band h2{color:#fff}
.cta-band p{color:rgba(255,255,255,.72);max-width:560px;margin:14px auto 0}

/* ---------- Footer ---------- */
footer{border-top:1px solid var(--hairline);padding:56px 22px 40px;
  font-size:14px;color:var(--ink-3)}
.foot-grid{max-width:var(--w);margin:0 auto;display:grid;
  grid-template-columns:2fr 1fr 1fr 1.4fr;gap:34px}
@media(max-width:900px){.foot-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.foot-grid{grid-template-columns:1fr}}
footer h4{font-size:13px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--ink-2);margin-bottom:14px}
footer li{list-style:none;margin-bottom:9px}
footer a:hover{color:var(--ink)}
.foot-legal{max-width:var(--w);margin:34px auto 0;padding-top:22px;
  border-top:1px solid var(--hairline);display:flex;justify-content:space-between;
  gap:14px;flex-wrap:wrap}

/* ---------- Reveal on scroll ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* ---------- Utility ---------- */
.mt-1{margin-top:14px}.mt-2{margin-top:28px}.mt-3{margin-top:46px}
.badge-row{display:flex;gap:12px;flex-wrap:wrap;justify-content:center;margin-top:22px}
.pill{background:#fff;border:1px solid var(--hairline);border-radius:980px;
  padding:8px 18px;font-size:14px;color:var(--ink-2);box-shadow:var(--shadow)}

/* ---------- Video testimonials (lite embed) ---------- */
.video-slot .yt{position:relative;display:block;width:100%;padding:0;border:0;cursor:pointer;
  aspect-ratio:16/9;border-radius:var(--radius-sm);overflow:hidden;background:#0e0e10;
  box-shadow:var(--shadow)}
.video-slot .yt img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.video-slot .yt iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.video-slot .play{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}
.video-slot .play span{width:64px;height:64px;border-radius:50%;background:rgba(232,115,12,.95);
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:22px;
  padding-left:5px;transition:transform .18s}
.video-slot .yt:hover .play span{transform:scale(1.08)}


/* ============ EDITORIAL SYSTEM (articles) ============ */
.art-hero{background:linear-gradient(180deg,#0b0b0d 0%,#1d1d1f 100%);color:#fff;
  padding:clamp(64px,9vw,110px) 22px clamp(44px,6vw,70px);text-align:center}
.art-hero h1{font-size:clamp(30px,4.8vw,50px);line-height:1.08;letter-spacing:-.02em;
  max-width:820px;margin:14px auto 0;color:#fff}
.art-eyebrow{color:var(--orange);font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase}
.art-meta{margin-top:18px;display:flex;gap:10px;justify-content:center;flex-wrap:wrap;
  color:rgba(255,255,255,.65);font-size:14px}
.art{padding:clamp(40px,6vw,64px) 22px 24px}
.art .container-narrow{max-width:720px}

.art-toc{background:#fff;border:1px solid var(--hairline);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:24px 28px;margin:0 0 40px}
.art-toc-t{font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:var(--orange);margin-bottom:12px}
.art-toc ol{margin:0 0 0 20px;color:var(--ink-2)}
.art-toc li{margin:7px 0;font-size:15px}
.art-toc a{color:var(--ink-2)}
.art-toc a:hover{color:var(--blue)}

.art h2{font-size:clamp(24px,3.4vw,32px);letter-spacing:-.015em;margin:54px 0 16px;
  padding-top:18px;border-top:1px solid var(--hairline);scroll-margin-top:70px}
.art h2:first-of-type{border-top:0;padding-top:0}
.art h3{font-size:clamp(19px,2.4vw,22px);margin:34px 0 10px}
.art h4{font-size:17px;margin:26px 0 8px;color:var(--ink)}
.art p{margin:0 0 18px;font-size:17.5px;line-height:1.72;color:#3a3a3c}
.art>div>p:first-of-type,.art .container-narrow>p:first-of-type{font-size:20px;line-height:1.6;color:var(--ink-2)}
.art ul,.art ol{margin:0 0 20px 4px;padding-left:22px;color:#3a3a3c}
.art li{margin-bottom:10px;line-height:1.65;font-size:17px}
.art li::marker{color:var(--orange);font-weight:700}
.art strong{color:var(--ink)}
.art a{color:var(--blue)}
.art a:hover{text-decoration:underline}
.art hr{border:0;border-top:1px solid var(--hairline);margin:40px 0}

.art table{width:100%;border-collapse:separate;border-spacing:0;margin:26px 0;
  background:#fff;border-radius:var(--radius-sm);overflow:hidden;
  box-shadow:var(--shadow);font-size:15px;display:block;overflow-x:auto}
.art thead th,.art tr:first-child th{background:var(--ink);color:#fff;text-align:left;
  padding:13px 16px;font-weight:600;white-space:nowrap}
.art td{padding:12px 16px;border-top:1px solid var(--hairline);color:#3a3a3c;min-width:110px}
.art tbody tr:nth-child(even) td{background:#fafafa}
.art td strong{color:var(--ink)}

.art blockquote{background:#fff;border-left:4px solid var(--orange);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;box-shadow:var(--shadow);
  padding:18px 22px;margin:26px 0;color:var(--ink-2)}
.art blockquote p{margin:0;font-size:16.5px}

.art img{border-radius:var(--radius-sm);box-shadow:var(--shadow);margin:24px auto}

.art-cta{background:linear-gradient(180deg,#0b0b0d,#1d1d1f);color:#fff;text-align:center;
  border-radius:var(--radius);padding:40px 30px;margin:56px 0 40px}
.art-cta h2{color:#fff;border:0;padding:0}
.art-cta p{color:rgba(255,255,255,.72);max-width:480px;margin:0 auto 22px}

.art-related{margin:12px 0 40px}
.art-rel{display:flex;flex-direction:column;gap:8px;padding:24px 22px}
.art-rel h3{font-size:17px;margin:0;line-height:1.35}

/* ---------- Reconstructed step timeline ---------- */
.steps{display:flex;flex-direction:column;gap:14px;margin:26px 0}
.step-card{display:grid;grid-template-columns:120px 1fr;gap:18px;background:#fff;
  border-radius:var(--radius-sm);box-shadow:var(--shadow);padding:22px 24px}
@media(max-width:640px){.step-card{grid-template-columns:1fr;gap:8px}}
.step-side{display:flex;flex-direction:column;gap:8px;align-items:flex-start}
.step-num{width:34px;height:34px;border-radius:50%;background:var(--blue);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px}
.step-chip{background:var(--bg);border:1px solid var(--hairline);border-radius:980px;
  padding:4px 10px;font-size:12.5px;font-weight:600;color:var(--ink-2);white-space:nowrap}
.step-main h3{margin:0 0 8px;font-size:18px}
.step-main p{margin:0;font-size:16px}
.art-faq{margin:26px 0}
.art-faq details{background:#fff}
.art-faq summary{font-size:16.5px}
.art-form{background:#fff;border:1px solid var(--hairline);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:32px 30px;margin:52px 0 40px}
.art-form p{margin-bottom:18px}