:root{
  --bg:#0a0e17; --bg2:#0e1420; --card:#111a2b; --border:rgba(255,255,255,.07);
  --blue:#3b82f6; --blue2:#60a5fa; --accent:#22d3ee;
  --text:#e5e9f0; --muted:#8b95a7;
  --tr:.4s cubic-bezier(.25,.46,.45,.94);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Cairo','Poppins',sans-serif;background:var(--bg);color:var(--text);overflow-x:hidden;line-height:1.8}
html[lang="en"] body{font-family:'Poppins','Cairo',sans-serif}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
.container{width:min(1180px,92%);margin:0 auto}
.section{padding:110px 0}
::selection{background:var(--blue);color:#fff}

/* ===== Scroll progress ===== */
.scroll-progress{position:fixed;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,var(--blue),var(--accent));z-index:2001;transition:width .1s linear}

/* ===== Preloader ===== */
.preloader{position:fixed;inset:0;background:var(--bg);z-index:3000;display:flex;align-items:center;justify-content:center;transition:opacity .5s,visibility .5s}
.preloader.hide{opacity:0;visibility:hidden}
.terminal{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:26px 34px;font-family:'Fira Code',monospace;direction:ltr}
.t-line{color:var(--accent);font-size:.95rem}
.t-line .dots::after{content:'';animation:dots 1s steps(4) infinite}
@keyframes dots{0%{content:''}25%{content:'.'}50%{content:'..'}75%{content:'...'}}
.loader-bar{width:220px;height:4px;background:rgba(255,255,255,.08);border-radius:4px;overflow:hidden;margin-top:16px}
.loader-bar span{display:block;height:100%;width:40%;background:linear-gradient(90deg,var(--blue),var(--accent));animation:load 1.1s ease-in-out infinite}
@keyframes load{0%{transform:translateX(-100%)}100%{transform:translateX(350%)}}

/* ===== Navbar ===== */
.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;padding:20px 0;transition:var(--tr)}
.navbar.scrolled{background:rgba(10,14,23,.85);backdrop-filter:blur(18px);padding:12px 0;border-bottom:1px solid var(--border)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:16px}
.logo{display:flex;align-items:center;gap:12px}
.logo-icon{width:44px;height:44px;border-radius:12px;background:linear-gradient(135deg,var(--blue),#1d4ed8);display:flex;align-items:center;justify-content:center;font-size:1.1rem;color:#fff;box-shadow:0 6px 20px rgba(59,130,246,.4);flex-shrink:0}
.logo-text{display:flex;flex-direction:column;line-height:1.3}
.logo-text strong{font-size:1.05rem}
.logo-text small{color:var(--muted);font-size:.68rem;letter-spacing:.4px}
.nav-menu{display:flex;align-items:center;gap:28px}
.nav-link{color:var(--muted);font-weight:600;font-size:.9rem;position:relative;padding:6px 0;transition:var(--tr)}
.nav-link::after{content:'';position:absolute;bottom:0;height:2px;width:0;border-radius:2px;background:linear-gradient(90deg,var(--blue),var(--accent));transition:var(--tr)}
html[dir="rtl"] .nav-link::after{right:0}
html[dir="ltr"] .nav-link::after{left:0}
.nav-link:hover,.nav-link.active{color:#fff}
.nav-link:hover::after,.nav-link.active::after{width:100%}
.nav-cta{background:linear-gradient(135deg,var(--blue),#1d4ed8);color:#fff;padding:10px 22px;border-radius:10px;font-weight:700;font-size:.85rem;transition:var(--tr);box-shadow:0 6px 18px rgba(59,130,246,.35)}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(59,130,246,.5)}
.nav-actions{display:flex;align-items:center;gap:12px}
.lang-btn{background:transparent;border:1px solid var(--border);color:var(--muted);padding:8px 14px;border-radius:20px;cursor:pointer;font-family:inherit;font-weight:700;font-size:.78rem;display:flex;align-items:center;gap:6px;transition:var(--tr)}
.lang-btn:hover{border-color:var(--blue);color:#fff}
.menu-btn{display:none;background:transparent;border:none;color:#fff;font-size:1.4rem;cursor:pointer}

/* ===== Hero ===== */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;overflow:hidden}
.hero-bg{position:absolute;inset:0;background:url('../images/hero.jpg') center/cover;transform:scale(1.05);animation:heroZoom 12s ease forwards}
@keyframes heroZoom{to{transform:scale(1)}}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(to bottom,rgba(10,14,23,.55),rgba(10,14,23,.88) 75%,var(--bg))}
.hero-content{position:relative;z-index:2;text-align:center;padding:120px 0 60px}
.hero-code-badge{display:inline-flex;align-items:center;gap:10px;background:rgba(34,211,238,.08);border:1px solid rgba(34,211,238,.25);color:var(--accent);padding:8px 18px;border-radius:30px;font-size:.85rem;font-weight:700;margin-bottom:26px;animation:fadeUp .7s .2s forwards;opacity:0}
.pulse-dot{width:8px;height:8px;border-radius:50%;background:#34d399;animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(52,211,153,.6)}50%{box-shadow:0 0 0 6px rgba(52,211,153,0)}}
.hero-title{font-size:clamp(2.2rem,6vw,4.2rem);font-weight:900;line-height:1.25;margin-bottom:18px;animation:fadeUp .7s .4s forwards;opacity:0}
.hero-name{background:linear-gradient(135deg,var(--blue2),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-typed{font-family:'Fira Code',monospace;font-size:clamp(1rem,2.4vw,1.5rem);color:var(--accent);min-height:2.4em;margin-bottom:16px;animation:fadeUp .7s .6s forwards;opacity:0;direction:ltr}
.typed-cursor{animation:blink .8s step-end infinite}
@keyframes blink{50%{opacity:0}}
.hero-desc{color:var(--muted);max-width:620px;margin:0 auto 36px;font-size:1.05rem;animation:fadeUp .7s .8s forwards;opacity:0}
.hero-btns{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;margin-bottom:56px;animation:fadeUp .7s 1s forwards;opacity:0}
.hero-stats{display:flex;justify-content:center;gap:56px;flex-wrap:wrap;animation:fadeUp .7s 1.2s forwards;opacity:0}
.h-stat{text-align:center}
.h-stat strong{display:block;font-size:2.1rem;font-weight:900;color:#fff}
.h-stat span:last-child{color:var(--muted);font-size:.88rem}
.hero-scroll{position:absolute;bottom:34px;left:50%;transform:translateX(-50%);color:var(--accent);font-size:1.1rem;animation:bounce 2s infinite;z-index:2}
@keyframes bounce{0%,100%{transform:translateX(-50%) translateY(0)}50%{transform:translateX(-50%) translateY(10px)}}
@keyframes fadeUp{from{opacity:0;transform:translateY(26px)}to{opacity:1;transform:translateY(0)}}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 32px;border-radius:12px;font-weight:700;font-size:.95rem;transition:var(--tr);cursor:pointer;border:none}
.btn-primary{background:linear-gradient(135deg,var(--blue),#1d4ed8);color:#fff;box-shadow:0 8px 24px rgba(59,130,246,.35)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 14px 32px rgba(59,130,246,.5)}
.btn-ghost{border:1px solid var(--border);color:var(--text);background:rgba(255,255,255,.03)}
.btn-ghost:hover{border-color:var(--blue);background:rgba(59,130,246,.08);transform:translateY(-3px)}
.btn-sm{padding:10px 22px;font-size:.85rem}
.btn-full{width:100%}

/* ===== Section head ===== */
.section-head{text-align:center;max-width:640px;margin:0 auto 60px}
.section-tag{display:inline-block;color:var(--accent);font-weight:800;letter-spacing:2px;text-transform:uppercase;font-size:.78rem;margin-bottom:14px}
.section-title{font-size:clamp(1.7rem,3.4vw,2.6rem);font-weight:900}
.section-sub{color:var(--muted);margin-top:14px}

/* ===== About ===== */
.about-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:70px;align-items:center}
.about-img-wrap{position:relative}
.about-img-wrap>img{border-radius:20px;width:100%;box-shadow:0 30px 70px rgba(0,0,0,.55)}
.about-frame{position:absolute;inset:-16px;border:2px solid rgba(59,130,246,.35);border-radius:24px;z-index:-1}
html[dir="rtl"] .about-frame{transform:translate(16px,16px)}
html[dir="ltr"] .about-frame{transform:translate(-16px,16px)}
.about-chip{position:absolute;bottom:22px;inset-inline-start:-14px;background:var(--card);border:1px solid var(--border);padding:12px 20px;border-radius:14px;display:flex;align-items:center;gap:10px;font-weight:700;font-size:.9rem;box-shadow:0 14px 34px rgba(0,0,0,.45)}
.about-chip i{color:var(--accent)}
.about-text .section-title{margin:14px 0 22px}
.about-text>p{color:var(--muted);margin-bottom:18px}
.skills{margin:30px 0 26px;display:flex;flex-direction:column;gap:18px}
.skill-head{display:flex;justify-content:space-between;font-weight:700;font-size:.9rem;margin-bottom:8px}
.skill-pct{color:var(--accent);font-family:'Fira Code',monospace}
.skill-bar{height:8px;background:rgba(255,255,255,.07);border-radius:8px;overflow:hidden}
.skill-bar span{display:block;height:100%;width:0;border-radius:8px;background:linear-gradient(90deg,var(--blue),var(--accent));transition:width 1.4s cubic-bezier(.22,.68,0,1)}
.about-badges{display:flex;flex-wrap:wrap;gap:10px}
.badge{background:rgba(59,130,246,.1);border:1px solid rgba(59,130,246,.25);color:var(--blue2);padding:6px 16px;border-radius:20px;font-size:.82rem;font-weight:700}

/* ===== Services ===== */
.services{background:var(--bg2)}
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.service-card{background:var(--card);border:1px solid var(--border);border-radius:18px;padding:34px 28px;transition:var(--tr);position:relative;overflow:hidden}
.service-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--blue),var(--accent));opacity:0;transition:var(--tr)}
.service-card:hover{transform:translateY(-8px);border-color:rgba(59,130,246,.3);box-shadow:0 20px 46px rgba(0,0,0,.45)}
.service-card:hover::before{opacity:1}
.service-card i{font-size:1.7rem;color:var(--accent);margin-bottom:18px;display:inline-block}
.service-card h3{font-size:1.1rem;margin-bottom:10px}
.service-card p{color:var(--muted);font-size:.92rem}

/* ===== Portfolio ===== */
.portfolio-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.project-card{background:var(--card);border:1px solid var(--border);border-radius:18px;overflow:hidden;transition:var(--tr)}
.project-card:hover{transform:translateY(-8px);box-shadow:0 24px 50px rgba(0,0,0,.5);border-color:rgba(59,130,246,.3)}
.project-img{position:relative;height:220px;overflow:hidden;background:#fff}
.project-img img{width:100%;height:100%;object-fit:cover;transition:transform .7s ease}
.project-card:hover .project-img img{transform:scale(1.07)}
.project-hover{position:absolute;inset:0;background:rgba(10,14,23,.7);backdrop-filter:blur(3px);display:flex;align-items:center;justify-content:center;opacity:0;transition:var(--tr)}
.project-card:hover .project-hover{opacity:1}
.project-body{padding:24px 24px 28px}
.project-body h3{font-size:1.05rem;margin-bottom:8px}
.project-body p{color:var(--muted);font-size:.9rem;margin-bottom:16px}
.project-tags{display:flex;flex-wrap:wrap;gap:8px}
.project-tags span{background:rgba(34,211,238,.1);border:1px solid rgba(34,211,238,.2);color:var(--accent);padding:3px 12px;border-radius:14px;font-size:.75rem;font-weight:700}

/* ===== Contact ===== */
.contact{background:var(--bg2)}
.contact-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:40px;align-items:start}
.contact-form{background:var(--card);border:1px solid var(--border);border-radius:20px;padding:36px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.contact-form input,.contact-form textarea{width:100%;padding:15px 18px;margin-bottom:16px;background:rgba(255,255,255,.03);border:1px solid var(--border);border-radius:12px;color:var(--text);font-family:inherit;font-size:.95rem;transition:var(--tr)}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(59,130,246,.15)}
.contact-form ::placeholder{color:var(--muted)}
.contact-form textarea{resize:vertical;min-height:130px}
.form-success{display:none;margin-top:14px;padding:14px;background:rgba(52,211,153,.1);border:1px solid rgba(52,211,153,.3);color:#34d399;border-radius:12px;font-weight:700;text-align:center}
.form-success.show{display:block;animation:fadeUp .4s forwards}
.contact-info{display:flex;flex-direction:column;gap:16px}
.info-card{display:flex;gap:16px;align-items:center;background:var(--card);border:1px solid var(--border);border-radius:16px;padding:20px 22px;transition:var(--tr)}
.info-card:hover{border-color:rgba(59,130,246,.35);transform:translateY(-4px)}
.info-card i{font-size:1.3rem;color:var(--accent);width:26px}
.info-card h4{font-size:.92rem;margin-bottom:2px}
.info-card p{color:var(--muted);font-size:.88rem}

/* ===== Footer ===== */
.footer{background:var(--bg);border-top:1px solid var(--border);padding-top:60px}
.footer-inner{display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap;padding-bottom:40px}
.footer-brand{display:flex;align-items:center;gap:14px}
.footer-brand strong{display:block;font-size:1.05rem}
.footer-brand p{color:var(--muted);font-size:.88rem}
.footer-links{display:flex;gap:22px;flex-wrap:wrap}
.footer-links a{color:var(--muted);font-size:.9rem;transition:var(--tr)}
.footer-links a:hover{color:var(--accent)}
.footer-social{display:flex;gap:10px}
.footer-social a{width:40px;height:40px;border-radius:50%;border:1px solid var(--border);display:flex;align-items:center;justify-content:center;color:var(--muted);transition:var(--tr)}
.footer-social a:hover{background:var(--blue);border-color:var(--blue);color:#fff;transform:translateY(-4px)}
.footer-bottom{border-top:1px solid var(--border);padding:20px 0;text-align:center;color:var(--muted);font-size:.85rem}

/* ===== Back to top ===== */
.back-top{position:fixed;bottom:26px;inset-inline-end:26px;width:46px;height:46px;border-radius:50%;border:none;background:linear-gradient(135deg,var(--blue),#1d4ed8);color:#fff;cursor:pointer;opacity:0;visibility:hidden;transform:translateY(18px);transition:var(--tr);z-index:900;box-shadow:0 10px 26px rgba(59,130,246,.45)}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.back-top:hover{transform:translateY(-4px)}

/* ===== Reveal ===== */
.reveal{opacity:0;transform:translateY(46px);transition:opacity .8s ease,transform .8s cubic-bezier(.22,.68,0,1.1)}
.reveal.visible{opacity:1;transform:translateY(0)}

/* ===== Responsive ===== */
@media(max-width:1024px){
  .services-grid,.portfolio-grid{grid-template-columns:repeat(2,1fr)}
  .about-grid{grid-template-columns:1fr;gap:50px}
  .about-media{max-width:520px;margin:0 auto}
}
@media(max-width:820px){
  .menu-btn{display:block}
  .nav-menu{position:fixed;top:0;inset-inline-end:-100%;height:100vh;width:min(320px,85vw);background:var(--bg2);flex-direction:column;justify-content:center;gap:26px;transition:var(--tr);z-index:1001;padding:40px;border-inline-start:1px solid var(--border)}
  .nav-menu.open{inset-inline-end:0}
  .nav-menu .nav-link{font-size:1.1rem}
  .contact-grid{grid-template-columns:1fr}
  .hero-stats{gap:34px}
}
@media(max-width:640px){
  .section{padding:80px 0}
  .services-grid,.portfolio-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .hero-stats{gap:26px}
  .h-stat strong{font-size:1.7rem}
  .contact-form{padding:24px}
  .footer-inner{flex-direction:column;text-align:center}
  .footer-brand{flex-direction:column}
  .about-chip{inset-inline-start:10px}
  .project-img{height:190px}
}
@media(hover:none){
  .nav-link{padding:10px 0}
  .service-card:active{transform:scale(.98)}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
}