/* ===== Ezzelden Sobhy — Portfolio ===== */
:root{
  --bg:#0b1120; --bg2:#0e1729; --panel:#121c33; --panel2:#16223d;
  --ink:#e8eef9; --muted:#94a3b8; --faint:#64748b;
  --accent:#4f8cff; --accent2:#7aa7ff; --gold:#f5c451;
  --line:rgba(148,163,184,.16); --line2:rgba(148,163,184,.28);
  --radius:16px; --maxw:1140px;
  --shadow:0 18px 50px -20px rgba(0,0,0,.65);
  --font:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font); background:var(--bg); color:var(--ink);
  line-height:1.6; -webkit-font-smoothing:antialiased; overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
h1,h2,h3{line-height:1.12;letter-spacing:-.02em}
strong{color:var(--ink);font-weight:650}

/* backdrop */
.bg-grid{position:fixed;inset:0;z-index:-2;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:54px 54px;opacity:.35;
  mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 75%);}
.bg-glow{position:fixed;top:-30vh;left:50%;transform:translateX(-50%);width:90vw;height:80vh;z-index:-2;
  background:radial-gradient(closest-side,rgba(79,140,255,.22),transparent 70%);filter:blur(20px);}
body::before{content:"";position:fixed;inset:0;z-index:-3;background:
  radial-gradient(900px 500px at 80% -10%,rgba(122,167,255,.10),transparent 60%),
  linear-gradient(180deg,var(--bg),var(--bg2));}

/* nav */
.nav{position:sticky;top:0;z-index:50;display:flex;align-items:center;justify-content:space-between;
  max-width:var(--maxw);margin:0 auto;padding:18px 24px;
  backdrop-filter:blur(8px);}
.brand{font-weight:800;font-size:1.25rem;letter-spacing:.04em}
.brand span{color:var(--accent)}
.nav-links{display:flex;gap:26px;align-items:center}
.nav-links a{color:var(--muted);font-size:.92rem;font-weight:500;transition:color .2s}
.nav-links a:hover{color:var(--ink)}
.nav-cta{border:1px solid var(--line2);padding:8px 16px;border-radius:999px;color:var(--ink)!important}
.nav-cta:hover{border-color:var(--accent);background:rgba(79,140,255,.12)}

/* hero */
.hero{max-width:var(--maxw);margin:0 auto;padding:72px 24px 40px;text-align:center}
.eyebrow{color:var(--accent2);font-weight:600;letter-spacing:.14em;text-transform:uppercase;font-size:.8rem}
.hero h1{font-size:clamp(2.6rem,7vw,5rem);font-weight:800;margin:14px 0 18px;
  background:linear-gradient(180deg,#fff,#b9c8e6);-webkit-background-clip:text;background-clip:text;color:transparent}
.lede{max-width:760px;margin:0 auto;color:var(--muted);font-size:clamp(1rem,2.1vw,1.22rem)}
.hero-cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin:30px 0 8px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:999px;font-weight:600;font-size:.95rem;
  border:1px solid transparent;transition:transform .15s,box-shadow .2s,background .2s,border-color .2s;cursor:pointer}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:linear-gradient(180deg,var(--accent),#3a73e6);color:#fff;box-shadow:0 12px 30px -12px rgba(79,140,255,.8)}
.btn-ghost{border-color:var(--line2);color:var(--ink);background:rgba(255,255,255,.02)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent2)}

/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;max-width:760px;margin:48px auto 0}
.stat{background:linear-gradient(180deg,var(--panel),var(--panel2));border:1px solid var(--line);
  border-radius:var(--radius);padding:20px 12px;text-align:center}
.stat .num{display:block;font-size:clamp(1.5rem,3.4vw,2.2rem);font-weight:800;color:#fff}
.stat .lbl{color:var(--faint);font-size:.78rem;text-transform:uppercase;letter-spacing:.06em}

/* sections */
section{scroll-margin-top:80px}
.section-head{max-width:var(--maxw);margin:0 auto;padding:64px 24px 0;text-align:center}
.section-head h2{font-size:clamp(1.8rem,4vw,2.6rem);font-weight:800}
.section-head p{color:var(--muted);max-width:680px;margin:14px auto 0}

/* controls */
.controls{max-width:var(--maxw);margin:30px auto 0;padding:0 24px;display:flex;gap:14px;flex-wrap:wrap;align-items:center;justify-content:space-between}
.search{flex:1;min-width:260px;display:flex;align-items:center;gap:10px;
  background:var(--panel);border:1px solid var(--line2);border-radius:999px;padding:10px 18px;color:var(--muted)}
.search:focus-within{border-color:var(--accent);box-shadow:0 0 0 4px rgba(79,140,255,.12)}
.search input{flex:1;background:transparent;border:none;outline:none;color:var(--ink);font-size:.95rem;font-family:inherit}
.search input::placeholder{color:var(--faint)}
.toggle{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:.9rem;cursor:pointer;user-select:none}
.toggle input{accent-color:var(--accent);width:16px;height:16px}

/* filters */
.filters{max-width:var(--maxw);margin:18px auto 0;padding:0 24px;display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
.chip{border:1px solid var(--line2);background:rgba(255,255,255,.02);color:var(--muted);
  padding:8px 15px;border-radius:999px;font-size:.85rem;font-weight:500;cursor:pointer;transition:all .18s}
.chip:hover{color:var(--ink);border-color:var(--accent)}
.chip.active{background:linear-gradient(180deg,var(--accent),#3a73e6);color:#fff;border-color:transparent}
.chip .c{opacity:.7;font-variant-numeric:tabular-nums;margin-left:4px}

/* grid */
.grid{max-width:var(--maxw);margin:34px auto 0;padding:0 24px 10px;
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{position:relative;background:linear-gradient(180deg,var(--panel),var(--panel2));
  border:1px solid var(--line);border-radius:var(--radius);padding:22px 20px 20px;
  display:flex;flex-direction:column;gap:12px;overflow:hidden;
  transition:transform .2s,border-color .2s,box-shadow .25s;animation:rise .5s both}
.card:hover{transform:translateY(-4px);border-color:var(--line2);box-shadow:var(--shadow)}
.card::before{content:"";position:absolute;inset:0 0 auto 0;height:3px;
  background:linear-gradient(90deg,var(--accent),transparent);opacity:0;transition:opacity .25s}
.card:hover::before{opacity:1}
.card.flagship{border-color:rgba(245,196,81,.32)}
.card.flagship::after{content:"★ Flagship";position:absolute;top:14px;right:14px;
  font-size:.68rem;font-weight:700;letter-spacing:.04em;color:var(--gold);
  background:rgba(245,196,81,.12);border:1px solid rgba(245,196,81,.3);padding:3px 9px;border-radius:999px}
.card-cat{font-size:.74rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent2)}
.card h3{font-size:1.06rem;font-weight:700;color:#fff;padding-right:70px;line-height:1.25}
.card .blurb{color:var(--muted);font-size:.9rem;flex:1}
.tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:2px}
.tag{font-size:.72rem;color:var(--accent2);background:rgba(79,140,255,.10);
  border:1px solid rgba(79,140,255,.22);padding:3px 9px;border-radius:7px}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:6px;
  border-top:1px solid var(--line);padding-top:12px}
.meta{color:var(--faint);font-size:.78rem}
.visit{font-size:.82rem;font-weight:600;color:var(--accent2);display:inline-flex;align-items:center;gap:5px}
.visit:hover{color:#fff}
.empty{text-align:center;color:var(--muted);padding:48px 24px}

@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}

/* stack */
.stack-grid{max-width:var(--maxw);margin:34px auto 0;padding:0 24px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stack-card{background:linear-gradient(180deg,var(--panel),var(--panel2));border:1px solid var(--line);
  border-radius:var(--radius);padding:24px 20px}
.stack-card h3{font-size:1.05rem;color:var(--accent2);margin-bottom:10px}
.stack-card p{color:var(--muted);font-size:.9rem}

/* contact */
.contact{max-width:var(--maxw);margin:0 auto;padding:84px 24px 30px;text-align:center}
.contact h2{font-size:clamp(1.9rem,4.4vw,2.8rem);font-weight:800}
.contact>p{color:var(--muted);margin-top:10px}
.contact-links{display:flex;gap:12px;flex-wrap:wrap;justify-content:center;margin:28px 0 12px}
.loc{color:var(--faint);font-size:.85rem}

/* footer */
.foot{max-width:var(--maxw);margin:0 auto;padding:30px 24px 50px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;color:var(--faint);font-size:.82rem}

/* responsive */
@media (max-width:900px){
  .grid{grid-template-columns:repeat(2,1fr)}
  .stack-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:600px){
  .nav-links a:not(.nav-cta){display:none}
  .stats{grid-template-columns:repeat(2,1fr)}
  .grid{grid-template-columns:1fr}
  .stack-grid{grid-template-columns:1fr}
  .foot{justify-content:center;text-align:center}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}