:root{
  --bg:#08101c;
  --bg2:#0c1626;
  --panel:#111d30;
  --panel2:#15233a;
  --text:#eef3f8;
  --muted:#92a0b7;
  --line:#23334e;
  --cyan:#50d0c8;
  --amber:#f0aa4f;
  --max:1180px;
  --radius:24px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:
  radial-gradient(circle at 20% 0%,rgba(80,208,200,.08),transparent 30%),
  linear-gradient(180deg,#07101b 0%,#0a1422 100%);
  color:var(--text);font-family:Inter,system-ui,-apple-system,Segoe UI,sans-serif;
}
body.fa{direction:rtl;font-family:Tahoma,Arial,sans-serif}
a{color:inherit;text-decoration:none}
.wrap{width:min(var(--max),calc(100% - 40px));margin:auto}
.nav{
  position:fixed;inset:16px 0 auto;z-index:100;
}
.nav-inner{
  height:64px;display:flex;align-items:center;justify-content:space-between;
  padding:0 18px;border:1px solid rgba(255,255,255,.08);
  background:rgba(8,16,28,.72);backdrop-filter:blur(18px);
  border-radius:18px;box-shadow:0 12px 40px rgba(0,0,0,.18)
}
.brand{font-weight:800;letter-spacing:-.02em;display:flex;align-items:center;gap:10px}
.brand-dot{width:9px;height:9px;background:var(--cyan);border-radius:50%;box-shadow:0 0 18px var(--cyan)}
.nav-links{display:flex;gap:22px;font-size:14px;color:var(--muted)}
.nav-links a:hover{color:var(--text)}
.lang{
  border:1px solid var(--line);background:var(--panel);color:var(--text);
  border-radius:999px;padding:8px 12px;cursor:pointer;font-weight:700
}
.hero{
  min-height:100vh;display:grid;align-items:center;padding:130px 0 80px;
  position:relative;overflow:hidden
}
.hero:after{
  content:"";position:absolute;width:460px;height:460px;border:1px solid rgba(80,208,200,.09);
  border-radius:50%;right:-150px;top:110px;box-shadow:0 0 0 80px rgba(80,208,200,.015),0 0 0 160px rgba(80,208,200,.01)
}
body.fa .hero:after{right:auto;left:-150px}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:70px;align-items:center;position:relative;z-index:2}
.badge{
  display:inline-flex;align-items:center;gap:9px;border:1px solid rgba(80,208,200,.25);
  background:rgba(80,208,200,.06);color:var(--cyan);
  padding:8px 13px;border-radius:999px;font:700 12px ui-monospace,SFMono-Regular,Menlo,monospace;
  text-transform:uppercase;letter-spacing:.06em
}
.badge:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan)}
.hero h1{
  font-size:clamp(48px,7vw,82px);line-height:.98;letter-spacing:-.055em;
  margin:24px 0 20px;max-width:900px
}
.hero h1 span{display:block;color:var(--cyan);font-size:.48em;line-height:1.3;letter-spacing:-.02em;margin-top:18px}
.hero p{font-size:18px;line-height:1.8;color:var(--muted);max-width:680px}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:12px;padding:13px 18px;font-weight:800;border:1px solid var(--line);
  transition:.2s ease
}
.btn.primary{background:var(--cyan);color:#06111a;border-color:var(--cyan)}
.btn:hover{transform:translateY(-2px);border-color:var(--cyan)}
.profile-stack{position:relative;min-height:570px;display:grid;place-items:center}
.profile-card{
  width:min(420px,100%);aspect-ratio:.82;border-radius:30px;overflow:hidden;
  border:1px solid rgba(255,255,255,.08);box-shadow:0 30px 90px rgba(0,0,0,.38);
  position:relative;z-index:4;transform:rotate(1.6deg)
}
.profile-card img{width:100%;height:100%;object-fit:cover;object-position:center 26%;display:block}
.ghost-card{
  position:absolute;width:75%;height:80%;border:1px solid var(--line);border-radius:30px;background:var(--panel2)
}
.ghost-card.one{transform:translate(-34px,18px) rotate(-5deg);opacity:.6}
.ghost-card.two{transform:translate(32px,32px) rotate(5deg);opacity:.35}
.console-float{
  position:absolute;z-index:6;bottom:34px;left:-30px;width:310px;
  background:rgba(10,19,32,.92);border:1px solid var(--line);backdrop-filter:blur(16px);
  border-radius:16px;overflow:hidden;box-shadow:0 24px 70px rgba(0,0,0,.35)
}
body.fa .console-float{left:auto;right:-30px}
.console-head{padding:10px 13px;border-bottom:1px solid var(--line);color:var(--muted);font:12px ui-monospace,monospace}
.console-body{padding:14px;font:12px/1.8 ui-monospace,monospace;color:#9ba8bb}
.console-body b{color:var(--cyan)}
.console-body .warn{color:var(--amber)}
.section-stack{position:relative;padding:40px 0 100px}
.stack-panel{
  position:sticky;top:96px;min-height:72vh;margin-bottom:120px;
  border:1px solid rgba(255,255,255,.075);border-radius:var(--radius);
  background:
  linear-gradient(180deg,rgba(255,255,255,.018),transparent 24%),
  var(--panel);
  box-shadow:0 30px 80px rgba(0,0,0,.26);
  overflow:hidden;isolation:isolate
}
.stack-panel:before{
  content:"";position:absolute;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(80,208,200,.09),transparent 66%);
  top:-140px;right:-120px;z-index:-1
}
body.fa .stack-panel:before{right:auto;left:-120px}
.stack-inner{padding:clamp(28px,5vw,66px)}
.eyebrow{color:var(--amber);font:800 12px ui-monospace,monospace;letter-spacing:.08em;text-transform:uppercase}
.section-title{font-size:clamp(34px,5vw,58px);line-height:1.05;letter-spacing:-.04em;margin:14px 0}
.section-sub{color:var(--muted);font-size:17px;max-width:760px;line-height:1.75}
.about-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:50px;margin-top:36px}
.about-copy{font-size:17px;line-height:1.85;color:var(--muted)}
.stat-grid{display:grid;gap:14px}
.stat{padding:18px;border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.018)}
.stat strong{display:block;color:var(--cyan);font-size:18px;margin-bottom:6px}
.stat span{color:var(--muted);font-size:14px}
.cert-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:34px}
.cert{
  padding:22px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.015)
}
.cert-top{display:flex;justify-content:space-between;gap:14px;align-items:center}
.cert h3{margin:0;font-size:18px}
.pill{font:800 11px ui-monospace,monospace;color:var(--cyan);border:1px solid rgba(80,208,200,.24);padding:5px 9px;border-radius:999px}
.cert p{color:var(--muted);line-height:1.65;font-size:14px}
.lab-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:34px}
.lab-card,.road-card{
  border:1px solid var(--line);border-radius:18px;padding:22px;background:rgba(255,255,255,.015)
}
.num{font:900 13px ui-monospace,monospace;color:var(--cyan)}
.lab-card h3,.road-card h3{font-size:19px;margin:14px 0 8px}
.lab-card p,.road-card p{font-size:14px;color:var(--muted);line-height:1.7}
.chips{display:flex;flex-wrap:wrap;gap:9px;margin-top:24px}
.chip{border:1px solid var(--line);padding:7px 10px;border-radius:999px;color:var(--muted);font:12px ui-monospace,monospace}
.projects{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:34px}
.project{
  min-height:290px;display:flex;flex-direction:column;padding:26px;border:1px solid var(--line);
  border-radius:20px;background:linear-gradient(145deg,rgba(255,255,255,.026),rgba(255,255,255,.008));
  transition:.25s ease;position:relative;overflow:hidden
}
.project:hover{transform:translateY(-6px);border-color:rgba(80,208,200,.45)}
.project:after{content:"↗";position:absolute;right:22px;top:18px;color:var(--cyan);font-size:22px}
body.fa .project:after{right:auto;left:22px}
.project .kicker{font:800 11px ui-monospace,monospace;color:var(--cyan);text-transform:uppercase;letter-spacing:.08em}
.project h3{font-size:24px;margin:20px 0 10px}
.project p{color:var(--muted);line-height:1.75;font-size:14px;flex:1}
.project a{margin-top:16px;color:var(--text);font-weight:800;font-size:14px}
.roadmap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:34px}
.road-card .stage{color:var(--amber);font:800 11px ui-monospace,monospace;text-transform:uppercase}
.contact-panel{min-height:64vh;display:grid;place-items:center;text-align:center}
.contact-inner{max-width:900px;padding:70px 30px}
.contact-inner h2{font-size:clamp(40px,6vw,72px);line-height:1.02;letter-spacing:-.05em;margin:14px 0 20px}
.contact-inner p{color:var(--muted);font-size:17px;line-height:1.8}
.contact-actions{justify-content:center}
.footer{padding:0 0 70px;text-align:center;color:var(--muted);font-size:13px}
.reveal{opacity:0;transform:translateY(24px);transition:.7s cubic-bezier(.2,.7,.2,1)}
.reveal.visible{opacity:1;transform:none}
@media(max-width:900px){
  .nav-links{display:none}
  html{scroll-padding-top:82px}
  .hero-grid{grid-template-columns:1fr}
  .hero{padding-bottom:56px}
  .profile-stack{min-height:500px}
  .profile-card{max-width:360px}
  .console-float{left:4px;bottom:8px}
  body.fa .console-float{left:auto;right:4px}
  .about-grid,.cert-list,.projects{grid-template-columns:1fr}
  .lab-grid,.roadmap-grid{grid-template-columns:1fr}

  /* Mobile stacked-page effect: keep sections sticky instead of
     disabling the desktop interaction. Later cards layer above earlier ones. */
  .section-stack{padding-top:24px}
  .stack-panel{
    position:sticky;
    top:76px;
    margin-bottom:72px;
    min-height:auto;
    border-radius:22px;
    transform-origin:top center;
    box-shadow:0 26px 70px rgba(0,0,0,.34);
  }
  .stack-panel:nth-of-type(1){z-index:11}
  .stack-panel:nth-of-type(2){z-index:12}
  .stack-panel:nth-of-type(3){z-index:13}
  .stack-panel:nth-of-type(4){z-index:14}
  .stack-panel:nth-of-type(5){z-index:15}
  .stack-panel:nth-of-type(6){z-index:16}
}

@media(max-width:560px){
  .wrap{width:min(100% - 24px,var(--max))}
  .nav{inset:8px 0 auto}
  .nav-inner{height:58px;padding:0 14px}
  .hero{padding-top:104px}
  .hero h1{font-size:44px}

  /* Mobile portrait composition:
     remove the dark terminal box and place the command text directly on the
     lower shirt area so the face remains unobstructed. */
  .profile-stack{
    min-height:auto;
    margin-top:12px;
    display:flex;
    flex-direction:column;
    align-items:center;
    padding-bottom:10px;
  }
  .profile-card{
    width:92%;
    max-width:360px;
    transform:rotate(.8deg);
  }
  .ghost-card.one{
    transform:translate(-18px,12px) rotate(-3deg);
  }
  .ghost-card.two{
    transform:translate(18px,20px) rotate(3deg);
  }
  .console-float{
    position:relative;
    width:66%;
    max-width:245px;
    left:auto;
    right:auto;
    bottom:auto;
    align-self:flex-start;
    margin:-160px 0 28px 42px;
    font-size:10px;
    z-index:8;
    border:none;
    border-radius:0;
    background:transparent;
    box-shadow:none;
    backdrop-filter:none;
    overflow:visible;
  }
  body.fa .console-float{
    left:auto;
    right:auto;
    align-self:flex-end;
    margin:-160px 42px 28px 0;
  }
  .console-head{
    display:none;
  }
  .console-body{
    padding:0;
    line-height:1.48;
    color:#1f2c3c;
    font-weight:700;
    text-shadow:0 1px 0 rgba(255,255,255,.52);
    background:transparent;
  }
  .console-body b{
    color:#0b8f89;
    font-weight:800;
    text-shadow:0 1px 0 rgba(255,255,255,.45);
  }
  .console-body div{
    margin:0 0 6px 0;
    font-weight:700;
  }
  .console-body div:last-child{margin-bottom:0}

  .stack-panel{
    top:72px;
    margin-bottom:58px;
    border-radius:20px;
  }
  .stack-inner{padding:30px 20px}
}