@import url('https://fonts.googleapis.com/css2?family=Cairo:wght@300;400;500;600;700;800&family=Inter:wght@300;400;500;600;700;800&family=Tajawal:wght@400;500;700;800&family=Fira+Code:wght@400;500&display=swap');

:root {
  --sky: #38bdf8;
  --teal: #00f594;
  --grad: linear-gradient(135deg, var(--sky), var(--teal));
  --bg: #1d1c22;
  --bg2: #1a191f;
  --card: #26252c;
  --card-hover: #2d2c34;
  --text: #f1f1f3;
  --text2: #a0a0b8;
  --text3: #6b6b80;
  --border: rgba(255,255,255,0.06);
  --shadow: 0 8px 32px rgba(0,0,0,0.4);
  --radius: 16px;
  --radius-sm: 10px;
  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
  --font-ar: 'Tajawal', 'Cairo', sans-serif;
  --font-en: 'Inter', sans-serif;
  --font-code: 'Fira Code', monospace;
  --nav-h: 72px;
}

[data-theme="light"] {
  --bg: #f0f4ff;
  --bg2: #e8eeff;
  --card: #ffffff;
  --card-hover: #f8faff;
  --text: #1a1a2e;
  --text2: #4a4a6a;
  --text3: #8888aa;
  --border: rgba(0,0,0,0.08);
  --shadow: 0 8px 32px rgba(0,0,0,0.08);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-ar);
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  overflow-x:hidden;
  transition:background var(--transition),color var(--transition);
  min-height:100vh;
}
body.en{font-family:var(--font-en)}
*:focus-visible{outline:2px solid var(--sky);outline-offset:2px;border-radius:4px}
button:focus:not(:focus-visible){outline:none}
::-webkit-scrollbar{width:6px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--text3);border-radius:3px}

/* ===== LOADER ===== */
.loader{position:fixed;inset:0;z-index:9999;display:flex;align-items:center;justify-content:center;background:var(--bg);transition:opacity 0.5s,visibility 0.5s}
.loader.hidden{opacity:0;visibility:hidden}
.dot-spinner{--uib-size:40px;--uib-speed:.9s;--uib-color:var(--sky);position:relative;display:flex;align-items:center;justify-content:flex-start;height:var(--uib-size);width:var(--uib-size)}
.dot-spinner__dot{position:absolute;top:0;left:0;display:flex;align-items:center;justify-content:flex-start;height:100%;width:100%}
.dot-spinner__dot::before{content:'';height:20%;width:20%;border-radius:50%;background:var(--uib-color);animation:dot-spinner .9s infinite ease}
.dot-spinner__dot:nth-child(2){transform:rotate(45deg)}
.dot-spinner__dot:nth-child(2)::before{animation-delay:-.8s}
.dot-spinner__dot:nth-child(3){transform:rotate(90deg)}
.dot-spinner__dot:nth-child(3)::before{animation-delay:-.7s}
.dot-spinner__dot:nth-child(4){transform:rotate(135deg)}
.dot-spinner__dot:nth-child(4)::before{animation-delay:-.6s}
.dot-spinner__dot:nth-child(5){transform:rotate(180deg)}
.dot-spinner__dot:nth-child(5)::before{animation-delay:-.5s}
.dot-spinner__dot:nth-child(6){transform:rotate(225deg)}
.dot-spinner__dot:nth-child(6)::before{animation-delay:-.4s}
.dot-spinner__dot:nth-child(7){transform:rotate(270deg)}
.dot-spinner__dot:nth-child(7)::before{animation-delay:-.3s}
.dot-spinner__dot:nth-child(8){transform:rotate(315deg)}
.dot-spinner__dot:nth-child(8)::before{animation-delay:-.2s}
@keyframes dot-spinner{0%,100%{opacity:1;transform:scale(1.5)}50%{opacity:.5;transform:scale(.5)}}

/* ===== PROGRESS BAR ===== */
.progress-bar{position:fixed;top:0;left:0;height:3px;background:var(--grad);z-index:1001;width:0;transition:width 0.1s}

/* ===== BACK TO TOP ===== */
.back-top{position:fixed;bottom:90px;right:24px;z-index:998;width:44px;height:44px;border-radius:50%;background:var(--card);border:1px solid var(--border);color:var(--text2);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--transition);opacity:0;visibility:hidden;transform:translateY(10px)}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.back-top:hover{background:var(--card-hover);color:var(--sky);border-color:rgba(56,189,248,0.2)}

/* ===== WHATSAPP ===== */
.whatsapp-btn{position:fixed;bottom:24px;right:24px;z-index:999;width:56px;height:56px;border-radius:50%;background:var(--grad);display:flex;align-items:center;justify-content:center;box-shadow:0 4px 20px rgba(56,189,248,0.3);transition:transform var(--transition),box-shadow var(--transition);animation:whatsappFadeIn 0.6s 1.5s both}
.whatsapp-btn:hover{transform:translateY(-3px) scale(1.05);box-shadow:0 8px 30px rgba(56,189,248,0.4)}
.whatsapp-btn::before{content:'';position:absolute;inset:-4px;border-radius:50%;background:var(--grad);opacity:0.3;filter:blur(12px);z-index:-1}
.whatsapp-icon{width:26px;height:26px;fill:#fff}
@keyframes whatsappFadeIn{from{opacity:0;transform:scale(0)}to{opacity:1;transform:scale(1)}}

/* ===== BG GRID ===== */
.bg-grid{position:fixed;inset:0;z-index:0;pointer-events:none;display:grid;grid-template-columns:repeat(4,1fr);background:linear-gradient(135deg,var(--bg),var(--bg2))}
.bg-grid .col{background:var(--card);opacity:0.4;transition:transform 1.5s cubic-bezier(0.4,0,0.2,1)}

/* ===== NAVBAR ===== */
.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;transition:all var(--transition);padding:0 24px;background:var(--bg)}
.navbar.scrolled{box-shadow:0 1px 0 var(--border)}
.nav-container{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;height:var(--nav-h)}
.logo{font-size:30px;font-weight:800;text-decoration:none;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-0.5px}
.nav-links{display:flex;align-items:center;gap:32px;list-style:none}
.nav-link{color:var(--text2);text-decoration:none;font-size:15px;font-weight:600;position:relative;transition:color var(--transition);padding:4px 0}
.nav-link:hover,.nav-link.active{color:var(--sky)}
.nav-link::after{content:'';position:absolute;bottom:-2px;left:0;width:0;height:2px;background:var(--grad);transition:width var(--transition);border-radius:1px}
.nav-link:hover::after,.nav-link.active::after{width:100%}
.nav-actions{display:flex;align-items:center;gap:8px}
.icon-btn{width:38px;height:38px;border-radius:8px;background:var(--card);border:1px solid var(--border);color:var(--text2);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:16px;transition:all var(--transition);font-family:inherit;font-weight:700}
.icon-btn:hover{background:var(--card-hover);color:var(--text);border-color:rgba(56,189,248,0.2)}
.sm-only{display:none}

/* ===== PAGE TRANSITIONS ===== */
.page-container{min-height:calc(100vh - 80px);padding-top:var(--nav-h)}
.page{animation:pageIn 0.5s ease}
@keyframes pageIn{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.page-exit{animation:pageOut 0.3s ease}
@keyframes pageOut{from{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(-20px)}}

/* ===== MAIN ===== */
.main-content{position:relative;z-index:1;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:80px 0;position:relative}
.container{max-width:1200px;margin:0 auto}

/* ===== HERO ===== */
.hero-page{min-height:calc(100vh - var(--nav-h));display:flex;align-items:center;padding-top:20px}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.hero-badge{display:inline-block;padding:8px 20px;border-radius:50px;background:linear-gradient(135deg,rgba(56,189,248,0.1),rgba(0,245,148,0.1));border:1px solid rgba(56,189,248,0.15);font-size:14px;font-weight:600;color:var(--sky);margin-bottom:20px}
.hero-greeting{font-size:22px;font-weight:500;color:var(--text2);margin-bottom:4px}
.hero-name{font-size:52px;font-weight:800;line-height:1.1;margin-bottom:12px;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-role{font-size:20px;font-weight:700;color:var(--text);margin-bottom:16px;min-height:32px}

.typing-text{background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.typing-cursor{display:inline-block;width:3px;height:24px;background:var(--sky);margin-right:4px;animation:blink .8s infinite;vertical-align:middle}
@keyframes blink{0%,100%{opacity:1}50%{opacity:0}}
.hero-desc{color:var(--text2);font-size:16px;max-width:520px;margin-bottom:28px;line-height:1.8}
.hero-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap}

.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 28px;border-radius:8px;font-size:15px;font-weight:600;text-decoration:none;cursor:pointer;border:none;transition:all var(--transition);font-family:inherit}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 4px 16px rgba(56,189,248,0.25)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(56,189,248,0.35)}

.social-icons{display:flex;gap:10px}
.social-icon{width:44px;height:44px;border-radius:8px;background:var(--grad);display:flex;align-items:center;justify-content:center;transition:transform var(--transition),box-shadow var(--transition)}
.social-icon:hover{transform:translateY(-2px);box-shadow:0 4px 16px rgba(56,189,248,0.3)}
.social-icon svg{width:18px;height:18px;fill:#fff}

.hero-img-col{display:flex;justify-content:center;align-items:center}
.hero-img-wrap{position:relative;width:320px;height:320px;display:flex;align-items:center;justify-content:center}
.hero-img{width:260px;height:260px;border-radius:50%;background:var(--grad);display:flex;align-items:center;justify-content:center;box-shadow:0 0 40px rgba(56,189,248,0.2);position:relative;z-index:1;overflow:hidden}
.hero-img img{width:100%;height:100%;object-fit:cover}
.hero-ring{position:absolute;inset:0;width:100%;height:100%;animation:spin 20s linear infinite;z-index:2}
@keyframes spin{to{transform:rotate(360deg)}}

/* ===== STATS ===== */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin:40px 0 60px}
.stat-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:28px 20px;text-align:center;transition:all var(--transition)}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.stat-icon{width:48px;height:48px;border-radius:12px;background:var(--grad);display:flex;align-items:center;justify-content:center;margin:0 auto 12px}
.stat-icon svg{width:24px;height:24px}
.stat-number{font-size:36px;font-weight:800;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1}
.stat-label{color:var(--text2);font-size:15px;font-weight:600;margin-top:6px}

/* ===== SECTION HEADER ===== */
.section-header{text-align:center;margin-bottom:48px}
.section-label{display:inline-block;padding:6px 16px;border-radius:50px;background:linear-gradient(135deg,rgba(56,189,248,0.1),rgba(0,245,148,0.1));border:1px solid rgba(56,189,248,0.15);font-size:13px;font-weight:700;color:var(--sky);margin-bottom:12px;text-transform:uppercase;letter-spacing:1px}
.section-title{font-size:36px;font-weight:800;margin-bottom:12px}
.section-desc{color:var(--text2);font-size:17px;max-width:560px;margin:0 auto}

/* ===== SERVICES ===== */
.services-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px}
.svc-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:32px 24px;transition:all var(--transition);cursor:default}
.svc-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.svc-icon{width:50px;height:50px;border-radius:12px;background:var(--grad);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:16px}
.svc-card h3{font-size:18px;font-weight:700;margin-bottom:8px}
.svc-card p{color:var(--text2);font-size:14px;line-height:1.7}

/* ===== SKILLS ===== */
.skills-section{padding:60px 0}
.skills-layout{display:flex;flex-direction:column;gap:40px}
.skills-tags-grid{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;max-width:700px;margin:0 auto;padding:32px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius)}
.skill-tag{
  padding:10px 24px;border-radius:50px;
  background:var(--bg2);
  border:1px solid var(--border);
  color:var(--text2);font-size:14px;font-weight:600;
  transition:all var(--transition);cursor:default;
}
.skill-tag:hover{background:var(--grad);color:#fff;border-color:transparent;transform:translateY(-2px);box-shadow:0 6px 20px rgba(56,189,248,0.25)}
.skills-bars-wrap{display:grid;grid-template-columns:1fr 1fr;gap:20px;max-width:900px;margin:0 auto}
.skill-bar-item{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px 28px;transition:all var(--transition);position:relative;overflow:hidden}
.skill-bar-item::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad);opacity:0;transition:opacity var(--transition)}
.skill-bar-item:hover::before{opacity:1}
.skill-bar-item:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.skill-bar-item .info{display:flex;justify-content:space-between;margin-bottom:14px;font-size:15px;font-weight:700;align-items:center}
.skill-bar-item .info span:first-child{display:flex;align-items:center;gap:10px}
.skill-bar-item .info svg{width:22px;height:22px;flex-shrink:0}
.skill-bar-track{height:8px;background:var(--border);border-radius:4px;overflow:hidden}
.skill-bar-fill{height:100%;background:var(--grad);border-radius:3px;width:0;transition:width 1.4s cubic-bezier(0.4,0,0.2,1)}

/* ===== PROJECTS ===== */
.cta-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:40px;text-align:center;margin-bottom:40px;transition:all var(--transition)}
.cta-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.cta-card .cta-icon{font-size:48px;margin-bottom:16px}
.cta-card h3{font-size:22px;font-weight:700;margin-bottom:8px}
.cta-card p{color:var(--text2);font-size:15px;max-width:500px;margin:0 auto 20px}
.projects-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:20px}
.proj-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:all var(--transition)}
.proj-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.proj-preview{height:200px;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
.proj-preview svg{width:100%;height:100%}
.proj-body{padding:24px}
.proj-tag{display:inline-block;padding:4px 12px;border-radius:50px;font-size:12px;font-weight:700;background:linear-gradient(135deg,rgba(56,189,248,0.1),rgba(0,245,148,0.1));color:var(--sky);margin-bottom:10px}
.proj-body h3{font-size:17px;font-weight:700;margin-bottom:6px}
.proj-body p{color:var(--text2);font-size:13px;line-height:1.7;margin-bottom:14px}
.proj-tech{display:flex;flex-wrap:wrap;gap:6px}
.proj-tech span{padding:4px 10px;background:var(--card-hover);border-radius:4px;font-size:11px;color:var(--text3);font-weight:500}

/* ===== CONTACT ===== */
.contact-layout{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.contact-methods{display:flex;flex-direction:column;gap:12px}
.contact-method{display:flex;align-items:center;gap:16px;padding:18px 20px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius-sm);text-decoration:none;color:var(--text);transition:all var(--transition)}
.contact-method:hover{background:var(--card-hover);transform:translateX(4px)}
.contact-method .icon{width:46px;height:46px;border-radius:12px;background:var(--grad);display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0}
.contact-method .info-name{font-size:13px;color:var(--text3)}
.contact-method .info-val{font-size:15px;font-weight:600}
.contact-form{display:flex;flex-direction:column;gap:14px}
.form-group{display:flex;flex-direction:column;gap:6px}
.form-group label{font-size:14px;font-weight:600;color:var(--text2)}
.form-group input,.form-group textarea{padding:14px 16px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-size:15px;font-family:inherit;transition:border-color var(--transition);outline:none}
.form-group input:focus,.form-group textarea:focus{border-color:var(--sky)}
.form-group textarea{min-height:130px;resize:vertical}

/* ===== FOOTER ===== */
.footer{padding:32px 0;text-align:center;border-top:1px solid var(--border)}
.footer p{color:var(--text3);font-size:14px}

/* ===== ANIMATIONS ===== */
.fade-in{opacity:0;transform:translateY(24px);transition:opacity 0.6s ease,transform 0.6s ease}
.fade-in.visible{opacity:1;transform:translateY(0)}
.fade-in:nth-child(2){transition-delay:0.1s}
.fade-in:nth-child(3){transition-delay:0.2s}
.fade-in:nth-child(4){transition-delay:0.3s}
.fade-in:nth-child(5){transition-delay:0.4s}
.fade-in:nth-child(6){transition-delay:0.5s}
.fade-in:nth-child(7){transition-delay:0.6s}
.fade-in:nth-child(8){transition-delay:0.7s}
.fade-in:nth-child(9){transition-delay:0.8s}

/* ===== REDUCED MOTION ===== */
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:0.01ms!important;animation-iteration-count:1!important;transition-duration:0.01ms!important}}

/* ===== RESPONSIVE ===== */
@media(max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:40px;text-align:center}
  .hero-desc{margin:0 auto 28px}
  .hero-actions{justify-content:center}
  .hero-img-wrap{width:260px;height:260px}
  .hero-img{width:210px;height:210px}
  .skills-bars-wrap{grid-template-columns:1fr}
  .contact-layout{grid-template-columns:1fr}
  .section-title{font-size:30px}
}
@media(max-width:768px){
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .hero-name{font-size:36px}
  .hero-greeting{font-size:18px}
  .hero-role{font-size:17px}
  .hero-img-wrap{width:200px;height:200px}
  .hero-img{width:160px;height:160px}
  .section{padding:60px 0}
  .services-grid{grid-template-columns:1fr}
  .projects-grid{grid-template-columns:1fr}
  .nav-links{display:none;position:fixed;top:var(--nav-h);left:0;right:0;background:rgba(29,28,34,0.95);backdrop-filter:blur(20px);flex-direction:column;padding:20px 24px;gap:12px;border-bottom:1px solid var(--border)}
  [data-theme="light"] .nav-links{background:rgba(240,244,255,0.95)}
  .nav-links.open{display:flex}
  .sm-only{display:flex}
}
@media(max-width:480px){
  .hero-name{font-size:28px}
  .stat-number{font-size:28px}
  .stat-card{padding:20px 16px}
  .section-title{font-size:24px}
  .btn{padding:10px 20px;font-size:14px}
  .social-icon{width:38px;height:38px}
  .social-icon svg{width:15px;height:15px}
  .skills-bars-wrap{grid-template-columns:1fr}
  .skill-tag{font-size:13px;padding:8px 18px}
}