/* ═══════════════════════════════════════════════════════════
   AZHAR BHUIYAN — AI ENGINEER & CREATIVE TECHNOLOGIST
   Global design system · v10 multi-page build
   ═══════════════════════════════════════════════════════════ */
:root{
  --ink:#0D1430;        /* Ink Navy — primary dark */
  --midnight:#080D1D;   /* Deep background */
  --slate-navy:#18213A; /* Secondary dark */
  --warm:#F7F8F5;       /* Primary light */
  --white:#FFFFFF;
  --mint:#7CF6D7;       /* Main accent */
  --forest:#176B57;     /* Secondary accent */
  --charcoal:#202536;   /* Dark text */
  --grey:#B6BDCA;       /* Muted text on dark */
  --muted:#5B6372;      /* Muted text on light */
  --border-l:#E5E8EC;
  --border-d:#30394D;
  --fh:'Manrope',system-ui,sans-serif;
  --fb:'Inter',system-ui,sans-serif;
  --fm:'JetBrains Mono',ui-monospace,monospace;
  --maxw:1280px;
  --r:10px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--fb);font-size:16.5px;line-height:1.75;color:var(--charcoal);background:var(--warm);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
ul{list-style:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 32px}
.wrap-n{max-width:880px;margin:0 auto;padding:0 32px}

/* ── Typography ─────────────────────────────── */
h1,h2,h3,h4{font-family:var(--fh);font-weight:700;line-height:1.12;letter-spacing:-.02em}
.t-hero{font-size:clamp(42px,6vw,82px);font-weight:800}
.t-page{font-size:clamp(38px,4.6vw,60px);font-weight:800}
.t-sec{font-size:clamp(30px,3.4vw,44px)}
.t-sub{font-size:clamp(20px,2.2vw,26px);font-weight:600}
.lead{font-size:18px;line-height:1.8;color:var(--muted)}
.label{font-family:var(--fm);font-size:12px;font-weight:500;letter-spacing:.18em;text-transform:uppercase}
.kicker{font-family:var(--fm);font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--forest);display:inline-flex;align-items:center;gap:12px;margin-bottom:20px}
.kicker::before{content:"";width:28px;height:2px;background:var(--mint)}
.on-dark .kicker,.on-ink .kicker{color:var(--mint)}
.on-dark .lead,.on-ink .lead{color:var(--grey)}
.wh{color:var(--white)}

/* ── Buttons ────────────────────────────────── */
.btn{display:inline-flex;align-items:center;gap:10px;padding:15px 30px;border-radius:var(--r);font-family:var(--fh);font-size:14.5px;font-weight:700;letter-spacing:.02em;border:1px solid transparent;transition:all .22s}
.btn-forest{background:var(--forest);color:var(--white)}
.btn-forest:hover{background:#115243;transform:translateY(-1px)}
.btn-mint{background:var(--mint);color:var(--ink)}
.btn-mint:hover{background:#5EE9C5;transform:translateY(-1px)}
.btn-ghost{border-color:var(--border-l);color:var(--charcoal);background:var(--white)}
.btn-ghost:hover{border-color:var(--forest);color:var(--forest)}
.btn-ghost-d{border-color:var(--border-d);color:var(--white);background:transparent}
.btn-ghost-d:hover{border-color:var(--mint);color:var(--mint)}
.btn-row{display:flex;gap:14px;flex-wrap:wrap}
.tlink{font-family:var(--fh);font-weight:700;font-size:14.5px;color:var(--forest);display:inline-flex;align-items:center;gap:8px}
.tlink::after{content:"→";transition:transform .2s}
.tlink:hover::after{transform:translateX(4px)}
.on-dark .tlink,.on-ink .tlink{color:var(--mint)}

/* ── Header ─────────────────────────────────── */
.hdr{position:sticky;top:0;z-index:200;background:rgba(8,13,29,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--border-d)}
.hdr-in{max-width:var(--maxw);margin:0 auto;padding:0 32px;display:flex;align-items:center;justify-content:space-between;height:78px;gap:24px}
.brand{display:flex;align-items:center;gap:14px}
.brand-mark{width:42px;height:42px;border:1.5px solid var(--mint);border-radius:9px;display:flex;align-items:center;justify-content:center;font-family:var(--fm);font-weight:600;font-size:15px;color:var(--mint);flex:none}
.brand-mark img{width:100%;height:100%;object-fit:contain;padding:5px}
.brand-txt .bn{font-family:var(--fh);font-weight:800;font-size:16.5px;letter-spacing:.06em;color:var(--white);line-height:1.2}
.brand-txt .bt{font-family:var(--fm);font-size:9px;letter-spacing:.16em;color:var(--grey)}
.nav{display:flex;align-items:center;gap:2px}
.nav>li{position:relative}
.nav a.nl,.nav button.nl{display:block;background:none;border:none;padding:10px 13px;font-family:var(--fh);font-size:14px;font-weight:600;color:var(--grey);transition:color .2s;border-radius:8px}
.nav a.nl:hover,.nav button.nl:hover,.nav a.nl.active,.nav li.open>button.nl{color:var(--mint)}
.nav button.nl::after{content:" ▾";font-size:10px;opacity:.7}
.dd{position:absolute;top:calc(100% + 10px);left:0;min-width:240px;background:var(--ink);border:1px solid var(--border-d);border-radius:12px;padding:10px;display:none;box-shadow:0 20px 50px rgba(0,0,0,.45)}
.nav li.open>.dd{display:block}
.dd a{display:block;padding:10px 14px;border-radius:8px;font-size:14px;font-weight:500;color:var(--grey)}
.dd a:hover{background:var(--slate-navy);color:var(--mint)}
.hdr-cta{white-space:nowrap;padding:12px 22px;font-size:13.5px}
.burger{display:none;background:none;border:1px solid var(--border-d);border-radius:8px;color:var(--white);font-size:22px;width:46px;height:44px;line-height:1}

/* mobile drawer */
.drawer{position:fixed;inset:78px 0 0 0;background:var(--midnight);z-index:190;padding:16px 32px 48px;overflow-y:auto;display:none}
.drawer.open{display:block}
.drawer a.dr-l,.drawer button.dr-t{display:block;width:100%;text-align:left;background:none;border:none;padding:16px 4px;border-bottom:1px solid var(--border-d);font-family:var(--fh);font-size:17px;font-weight:600;color:var(--white)}
.drawer button.dr-t::after{content:" ▾";font-size:12px;color:var(--mint)}
.drawer .dr-sub{display:none;padding:4px 0 8px 18px;border-bottom:1px solid var(--border-d)}
.drawer .dr-sub.open{display:block}
.drawer .dr-sub a{display:block;font-size:15px;color:var(--grey);padding:10px 4px}
.drawer .btn{margin-top:28px;width:100%;justify-content:center}
body.locked{overflow:hidden}

/* ── Sections ───────────────────────────────── */
.sec{padding:104px 0}
.sec-tight{padding:72px 0}
.on-dark{background:var(--midnight);color:var(--grey)}
.on-ink{background:var(--ink);color:var(--grey)}
.on-white{background:var(--white)}
.sh{max-width:680px;margin-bottom:56px}
.sh p{margin-top:16px}
.sh.c{margin-left:auto;margin-right:auto;text-align:center}
.sh.c .kicker{justify-content:center}
.sh p.lead{color:var(--muted)}
.on-dark .sh p.lead,.on-ink .sh p.lead{color:var(--grey)}

/* page hero */
.phero{background:var(--midnight);padding:110px 0 90px;position:relative;overflow:hidden}
.phero::before{content:"";position:absolute;inset:0;background:radial-gradient(900px 420px at 85% -10%,rgba(124,246,215,.08),transparent 60%),radial-gradient(700px 400px at 0% 110%,rgba(23,107,87,.14),transparent 60%)}
.phero .wrap{position:relative}
.phero p.lead{max-width:640px;margin-top:22px;color:var(--grey)}
.crumbs{font-family:var(--fm);font-size:11.5px;letter-spacing:.1em;color:var(--grey);margin-bottom:26px}
.crumbs a:hover{color:var(--mint)}
.crumbs span{color:var(--mint)}

/* ── Cards & grids ──────────────────────────── */
.g2{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.g3{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.g4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.card{background:var(--white);border:1px solid var(--border-l);border-radius:14px;padding:38px 32px;transition:transform .25s,border-color .25s,box-shadow .25s}
.card:hover{transform:translateY(-4px);border-color:var(--forest);box-shadow:0 18px 44px rgba(13,20,48,.08)}
.card h3{font-size:20px;margin:16px 0 10px}
.card p{font-size:15px;color:var(--muted)}
.card .num{font-family:var(--fm);font-size:12px;color:var(--forest);letter-spacing:.14em}
.card-d{background:var(--slate-navy);border:1px solid var(--border-d);border-radius:14px;padding:38px 32px;transition:transform .25s,border-color .25s}
.card-d:hover{transform:translateY(-4px);border-color:var(--mint)}
.card-d h3{color:var(--white);font-size:20px;margin:14px 0 10px}
.card-d p{font-size:15px;color:var(--grey)}
.icon-chip{width:46px;height:46px;border-radius:10px;background:rgba(124,246,215,.1);border:1px solid rgba(124,246,215,.35);display:flex;align-items:center;justify-content:center;font-size:20px}
.card .icon-chip{background:rgba(23,107,87,.08);border-color:rgba(23,107,87,.3)}

/* ── Media / asset slots ────────────────────── */
.slot{border-radius:14px;background:linear-gradient(145deg,var(--slate-navy),var(--midnight));border:1px solid var(--border-d);position:relative;display:flex;align-items:center;justify-content:center;overflow:hidden}
.slot img,.slot iframe,.slot video{width:100%;height:100%;object-fit:cover;border:0}
.slot-16x9{aspect-ratio:16/9}.slot-4x5{aspect-ratio:4/5}.slot-1x1{aspect-ratio:1/1}
.slot-note{text-align:center;padding:20px}
.slot-note .sn-i{font-size:26px;opacity:.9}
.slot-note .sn-t{font-family:var(--fm);font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--grey);margin-top:10px}
.logo-slot{height:52px;display:flex;align-items:center;font-family:var(--fh);font-weight:800;font-size:19px;color:var(--charcoal)}
.logo-slot img{max-height:52px;width:auto}

/* ── Experience (editorial) ─────────────────── */
.org{display:grid;grid-template-columns:200px 1fr;gap:40px;padding:48px 0;border-top:1px solid var(--border-l)}
.org:last-of-type{border-bottom:1px solid var(--border-l)}
.org-logo{width:132px;height:132px;border:1px solid var(--border-l);border-radius:14px;background:var(--white);display:flex;align-items:center;justify-content:center;font-family:var(--fh);font-weight:800;font-size:26px;color:var(--ink)}
.org-logo img{width:100%;height:100%;object-fit:contain;padding:18px}
.org h3{font-size:clamp(22px,2.4vw,30px);margin-bottom:6px}
.org-meta{display:flex;gap:10px;flex-wrap:wrap;margin:10px 0 16px}
.tag{font-family:var(--fm);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;padding:6px 12px;border-radius:999px;border:1px solid var(--border-l);color:var(--muted)}
.tag.em{border-color:rgba(23,107,87,.4);color:var(--forest);background:rgba(23,107,87,.06)}
.org p{color:var(--muted);max-width:720px}
.org-areas{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.org-areas span{font-size:12.5px;padding:6px 12px;border-radius:8px;background:var(--warm);border:1px solid var(--border-l);color:var(--muted)}

/* ── Stats ──────────────────────────────────── */
.stats{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--border-d);border-radius:16px;overflow:hidden;background:rgba(24,33,58,.6)}
.stat{padding:30px 26px;border-right:1px solid var(--border-d)}
.stat:last-child{border-right:0}
.stat b{font-family:var(--fh);font-size:38px;font-weight:800;color:var(--mint);display:block;line-height:1.1}
.stat span{font-family:var(--fm);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--grey)}

/* ── Lists ──────────────────────────────────── */
.ticks{margin-top:18px}
.ticks li{padding:9px 0 9px 30px;position:relative;font-size:15px;color:var(--muted);border-bottom:1px solid var(--border-l)}
.ticks li::before{content:"";position:absolute;left:0;top:16px;width:16px;height:16px;border-radius:50%;background:rgba(23,107,87,.12);border:1.5px solid var(--forest)}
.on-dark .ticks li,.on-ink .ticks li{color:var(--grey);border-color:var(--border-d)}
.on-dark .ticks li::before,.on-ink .ticks li::before{background:rgba(124,246,215,.1);border-color:var(--mint)}
.chips{display:flex;flex-wrap:wrap;gap:9px;margin-top:20px}
.chips span{font-size:13px;padding:8px 15px;border-radius:999px;background:var(--white);border:1px solid var(--border-l);color:var(--charcoal)}
.on-dark .chips span,.on-ink .chips span{background:var(--slate-navy);border-color:var(--border-d);color:var(--grey)}

/* ── CTA band ───────────────────────────────── */
.cta-band{background:linear-gradient(135deg,var(--ink),var(--midnight));border-top:1px solid var(--border-d);padding:96px 0;text-align:center;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background:radial-gradient(640px 320px at 50% 120%,rgba(124,246,215,.12),transparent 65%)}
.cta-band .wrap{position:relative}
.cta-band p{color:var(--grey);max-width:540px;margin:16px auto 34px}

/* ── Forms ──────────────────────────────────── */
.fg{margin-bottom:20px}
.fl{display:block;font-family:var(--fm);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin-bottom:8px}
.fi{width:100%;border:1px solid var(--border-l);background:var(--white);border-radius:10px;padding:14px 16px;font-family:var(--fb);font-size:15.5px;color:var(--charcoal);transition:border-color .2s,box-shadow .2s}
.fi:focus{outline:none;border-color:var(--forest);box-shadow:0 0 0 3px rgba(23,107,87,.12)}
textarea.fi{min-height:150px;resize:vertical}
.fnote{border-radius:10px;padding:14px 16px;font-size:14.5px;font-weight:600;margin-bottom:16px;display:none}
.fnote.ok{background:#E8F7F0;border:1px solid #9BD9BE;color:#115243}
.fnote.err{background:#FBEFEF;border:1px solid #E7B3B3;color:#8A2A2A}
.fnote.show{display:block}

/* ── Footer ─────────────────────────────────── */
.ftr{background:var(--midnight);border-top:1px solid var(--border-d);color:var(--grey);padding:80px 0 0}
.ftr-grid{display:grid;grid-template-columns:1.6fr repeat(4,1fr);gap:40px;padding-bottom:56px;border-bottom:1px solid var(--border-d)}
.ftr h4{font-family:var(--fm);font-size:11px;font-weight:500;letter-spacing:.2em;text-transform:uppercase;color:var(--mint);margin-bottom:18px}
.ftr-links li{padding:5px 0}
.ftr-links a{font-size:14px;color:var(--grey);transition:color .2s}
.ftr-links a:hover{color:var(--mint)}
.ftr-brand{font-family:var(--fh);font-weight:800;font-size:19px;color:var(--white);letter-spacing:.04em;margin:16px 0 4px}
.ftr-role{font-family:var(--fm);font-size:10.5px;letter-spacing:.18em;color:var(--mint)}
.ftr-tag{font-size:14px;margin-top:16px;max-width:300px;color:var(--grey)}
.ftr-bot{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;padding:26px 0;font-size:13px;color:#7A8294}
.ftr-bot nav a{color:#7A8294;margin-left:18px}
.ftr-bot nav a:hover{color:var(--mint)}

/* ── Reveal motion ──────────────────────────── */
.rv{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.rv.in{opacity:1;transform:none}
:focus-visible{outline:3px solid var(--mint);outline-offset:2px;border-radius:6px}
.skip{position:absolute;left:-9999px;top:0;background:var(--mint);color:var(--ink);padding:12px 20px;font-weight:700;z-index:999;border-radius:0 0 10px 0}
.skip:focus{left:0}

/* ── Responsive ─────────────────────────────── */
@media(max-width:1060px){
  .nav{display:none}
  .hdr-cta{display:none}
  .burger{display:block}
  .g3,.g4{grid-template-columns:1fr 1fr}
  .ftr-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:720px){
  .wrap,.wrap-n{padding:0 22px}
  .sec{padding:72px 0}
  .g2,.g3,.g4{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .stat{border-bottom:1px solid var(--border-d)}
  .stat:nth-child(3),.stat:nth-child(4){border-bottom:0}
  .stat:nth-child(2n){border-right:0}
  .org{grid-template-columns:1fr;gap:20px}
  .phero{padding:80px 0 66px}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .rv{opacity:1;transform:none}
}