/* =============================================
   KHALED EZZAT — PORTFOLIO v2
   Sharp, geometric, ultra-modern dark theme
   Fonts: Space Grotesk + JetBrains Mono
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=JetBrains+Mono:wght@300;400;500&display=swap');

/* ===== CSS VARIABLES ===== */
:root {
  --bg:         #080c10;
  --bg2:        #0c1018;
  --bg3:        #111620;
  --surface:    #141920;
  --surface2:   #1a2030;
  --border:     rgba(255,255,255,0.06);
  --border-hi:  rgba(255,255,255,0.12);
  --accent:     #00e5ff;
  --accent2:    #0091ea;
  --accent-dim: rgba(0,229,255,0.08);
  --accent-glow:rgba(0,229,255,0.15);
  --green:      #00e676;
  --orange:     #ff9100;
  --purple:     #e040fb;
  --teal:       #00bfa5;
  --text:       #f0f4f8;
  --text2:      #7b8794;
  --text3:      #3d4a56;
  --font-head:  'Space Grotesk', sans-serif;
  --font-mono:  'JetBrains Mono', monospace;
  --font-body:  'Space Grotesk', sans-serif;
  --radius:     8px;
  --radius-lg:  14px;
  --ease:       cubic-bezier(0.23, 1, 0.32, 1);
  --tr:         0.35s var(--ease);
}

/* ===== RESET ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg);color:var(--text);
  font-family:var(--font-body);font-size:16px;
  line-height:1.65;overflow-x:hidden;
  font-feature-settings:"ss01"1,"cv01"1;
}
a{color:inherit;text-decoration:none;}
::-webkit-scrollbar{width:4px;}
::-webkit-scrollbar-track{background:var(--bg);}
::-webkit-scrollbar-thumb{background:var(--accent2);border-radius:99px;}

/* ===== LAYOUT ===== */
.container{max-width:1140px;margin:0 auto;padding:0 28px;}
.section{padding:110px 0;}
.section-dark{background:var(--bg2);}

.section-label{
  font-family:var(--font-mono);font-size:11px;
  letter-spacing:0.2em;color:var(--accent);
  text-transform:uppercase;margin-bottom:14px;
  display:flex;align-items:center;gap:10px;
}
.section-label::before{
  content:'';display:block;width:24px;height:1px;background:var(--accent);
}
.section-title{
  font-family:var(--font-head);
  font-size:clamp(30px,4.5vw,50px);
  font-weight:700;letter-spacing:-0.03em;
  line-height:1.08;color:var(--text);margin-bottom:18px;
}
.section-sub{color:var(--text2);font-size:15.5px;max-width:520px;margin-bottom:56px;}

/* ===== BUTTONS ===== */
.btn-primary{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--accent);color:#000;
  font-family:var(--font-head);font-weight:600;font-size:14px;
  padding:12px 26px;border-radius:var(--radius);
  border:1px solid var(--accent);transition:var(--tr);letter-spacing:0.01em;
}
.btn-primary:hover{background:transparent;color:var(--accent);box-shadow:0 0 20px var(--accent-glow);transform:translateY(-1px);}
.btn-primary.btn-large{padding:15px 32px;font-size:15px;}

.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  background:transparent;color:var(--text);
  font-family:var(--font-head);font-weight:600;font-size:14px;
  padding:12px 26px;border-radius:var(--radius);
  border:1px solid var(--border-hi);transition:var(--tr);letter-spacing:0.01em;
}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px);}

.btn-sm-primary{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--accent);color:#000;font-size:12px;
  font-weight:600;padding:7px 16px;border-radius:6px;
  border:1px solid var(--accent);transition:var(--tr);letter-spacing:0.02em;
}
.btn-sm-primary:hover{background:transparent;color:var(--accent);}
.btn-sm-ghost{
  display:inline-flex;align-items:center;gap:6px;
  background:transparent;color:var(--text2);font-size:12px;
  font-weight:600;padding:7px 16px;border-radius:6px;
  border:1px solid var(--border);transition:var(--tr);
}
.btn-sm-ghost:hover{border-color:var(--border-hi);color:var(--text);}

/* ===== NAVBAR ===== */
#navbar{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(8,12,16,0.85);
  backdrop-filter:blur(20px) saturate(1.5);
  -webkit-backdrop-filter:blur(20px) saturate(1.5);
  border-bottom:1px solid var(--border);transition:var(--tr);
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  max-width:1140px;margin:0 auto;padding:0 28px;height:66px;
}
.logo{font-family:var(--font-head);font-weight:700;font-size:20px;letter-spacing:-0.04em;}
.logo .accent{color:var(--accent);}
.nav-links{display:flex;list-style:none;gap:32px;}
.nav-links a{font-size:13px;font-weight:500;color:var(--text2);letter-spacing:0.01em;transition:color 0.2s;}
.nav-links a:hover{color:var(--text);}
.btn-nav{
  background:var(--accent-dim);color:var(--accent);
  border:1px solid rgba(0,229,255,0.2);padding:7px 16px;
  border-radius:var(--radius);font-size:12px;font-weight:600;
  letter-spacing:0.03em;transition:var(--tr);
}
.btn-nav:hover{background:var(--accent);color:#000;}

.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:4px;}
.hamburger span{display:block;width:20px;height:1.5px;background:var(--text2);border-radius:2px;transition:var(--tr);}
.mobile-menu{display:none;flex-direction:column;padding:14px 28px 18px;gap:14px;border-top:1px solid var(--border);}
.mobile-menu a{color:var(--text2);font-weight:500;font-size:14px;}
.mobile-menu.open{display:flex;}

/* ===== HERO ===== */
#hero{
  min-height:100vh;display:flex;align-items:center;
  justify-content:space-between;gap:48px;
  padding:130px 28px 70px;max-width:1140px;margin:0 auto;
}
.hero-bg-grid{
  position:fixed;inset:0;z-index:-2;
  background-image:radial-gradient(circle,rgba(0,229,255,0.06) 1px,transparent 1px);
  background-size:36px 36px;pointer-events:none;
}
.hero-glow{
  position:fixed;top:-160px;left:50%;transform:translateX(-60%);
  width:800px;height:600px;
  background:radial-gradient(ellipse at center,rgba(0,145,234,0.08) 0%,transparent 65%);
  z-index:-1;pointer-events:none;
}

.hero-content{flex:1;max-width:560px;}
.available-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(0,230,118,0.06);border:1px solid rgba(0,230,118,0.18);
  color:var(--green);font-family:var(--font-mono);font-size:11px;
  letter-spacing:0.08em;padding:5px 13px;border-radius:4px;margin-bottom:30px;
}
.available-badge .dot{
  width:6px;height:6px;background:var(--green);border-radius:50%;
  animation:pulse 2.2s infinite;
}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:0.4;transform:scale(1.4);}}

#hero h1{
  font-family:var(--font-head);font-size:clamp(40px,5.5vw,64px);
  font-weight:700;letter-spacing:-0.04em;line-height:1.07;
  color:var(--text);margin-bottom:24px;
}
.accent-text{
  background:linear-gradient(90deg,var(--accent),var(--accent2));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.hero-sub{font-size:16px;color:var(--text2);line-height:1.7;margin-bottom:36px;max-width:480px;}
.hero-sub strong{color:var(--text);font-weight:600;}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:44px;}
.hero-meta{
  font-family:var(--font-mono);font-size:11px;color:var(--text3);
  letter-spacing:0.08em;display:flex;align-items:center;gap:12px;
}
.hero-meta .divider{color:var(--border-hi);}

/* Code window */
.hero-code{flex:1;max-width:460px;}
.code-window{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:0 0 0 1px rgba(255,255,255,0.02),0 32px 64px rgba(0,0,0,0.5);
}
.code-bar{
  display:flex;align-items:center;gap:6px;
  padding:12px 16px;background:rgba(255,255,255,0.02);border-bottom:1px solid var(--border);
}
.code-bar .dot{width:10px;height:10px;border-radius:50%;}
.code-bar .dot.red{background:#ff5f57;}.code-bar .dot.yellow{background:#febc2e;}.code-bar .dot.green{background:#28c840;}
.code-title{font-family:var(--font-mono);font-size:11px;color:var(--text3);margin-left:8px;}
.code-body{font-family:var(--font-mono);font-size:12.5px;line-height:2;padding:22px;overflow-x:auto;color:var(--text2);}
.c-kw{color:#bb80f5;}.c-cls{color:var(--accent);}.c-str{color:var(--green);}

/* ===== ANIMATIONS ===== */
.fade-in{opacity:0;transform:translateY(20px);animation:fadeUp 0.7s var(--ease) 0.1s forwards;}
.fade-in-slow{opacity:0;transform:translateY(20px);animation:fadeUp 0.8s var(--ease) 0.35s forwards;}
@keyframes fadeUp{to{opacity:1;transform:translateY(0);}}
.reveal{opacity:0;transform:translateY(28px);transition:opacity 0.65s var(--ease),transform 0.65s var(--ease);}
.reveal.visible{opacity:1;transform:translateY(0);}

/* ===== ABOUT ===== */
.about-grid{display:grid;grid-template-columns:1fr 320px;gap:64px;align-items:start;}
.about-text p{color:var(--text2);font-size:15.5px;margin-bottom:18px;}
.about-text strong{color:var(--text);font-weight:600;}
.about-stats{display:flex;gap:28px;margin-top:36px;padding-top:30px;border-top:1px solid var(--border);}
.stat-num{display:block;font-family:var(--font-head);font-weight:700;font-size:26px;letter-spacing:-0.03em;color:var(--accent);}
.stat-label{display:block;font-size:11px;color:var(--text3);font-family:var(--font-mono);letter-spacing:0.06em;text-transform:uppercase;margin-top:3px;}
.about-card-inner{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px 24px;text-align:center;}
.profile-initials{
  width:72px;height:72px;border-radius:50%;background:var(--accent);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-head);font-weight:700;font-size:22px;color:#000;
  margin:0 auto 16px;letter-spacing:-0.02em;
}
.about-card-inner h3{font-family:var(--font-head);font-size:17px;font-weight:600;letter-spacing:-0.02em;margin-bottom:4px;}
.role-tag{color:var(--accent);font-size:11px;font-family:var(--font-mono);letter-spacing:0.06em;margin-bottom:22px;}
.info-list{list-style:none;text-align:left;margin-bottom:22px;}
.info-list li{font-size:13px;color:var(--text2);padding:7px 0;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:8px;}
.info-list li:last-child{border-bottom:none;}
.social-links{display:flex;gap:8px;justify-content:center;}
.social-btn{flex:1;text-align:center;padding:8px 0;border-radius:6px;font-size:12px;font-weight:600;border:1px solid var(--border);color:var(--text2);letter-spacing:0.02em;transition:var(--tr);}
.social-btn:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-dim);}

/* ===== SKILLS ===== */
.skills-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
.skill-group{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px 22px;transition:var(--tr);}
.skill-group:hover{border-color:var(--border-hi);background:var(--surface2);}
.skill-group-header{display:flex;align-items:center;gap:9px;margin-bottom:16px;}
.skill-icon{font-size:16px;}
.skill-group-header h3{font-family:var(--font-head);font-size:14px;font-weight:600;letter-spacing:-0.01em;}
.skill-tags{display:flex;flex-wrap:wrap;gap:6px;}
.tag{display:inline-block;padding:4px 10px;border-radius:4px;font-size:11.5px;font-weight:500;font-family:var(--font-mono);letter-spacing:0.01em;}
.tag-primary{background:rgba(0,229,255,0.08);color:var(--accent);border:1px solid rgba(0,229,255,0.15);}
.tag-blue{background:rgba(0,145,234,0.1);color:#40c4ff;border:1px solid rgba(0,145,234,0.2);}
.tag-green{background:rgba(0,230,118,0.08);color:var(--green);border:1px solid rgba(0,230,118,0.15);}
.tag-orange{background:rgba(255,145,0,0.08);color:var(--orange);border:1px solid rgba(255,145,0,0.15);}
.tag-purple{background:rgba(224,64,251,0.08);color:var(--purple);border:1px solid rgba(224,64,251,0.15);}
.tag-teal{background:rgba(0,191,165,0.08);color:var(--teal);border:1px solid rgba(0,191,165,0.15);}

/* ===== PROJECTS ===== */
.projects-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.project-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:28px 26px;
  display:flex;flex-direction:column;gap:10px;
  transition:var(--tr);position:relative;overflow:hidden;
}
.project-card::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(0,229,255,0.03),transparent);
  opacity:0;transition:opacity 0.35s ease;pointer-events:none;
}
.project-card:hover::after{opacity:1;}
.project-card:hover{border-color:rgba(0,229,255,0.2);transform:translateY(-3px);box-shadow:0 16px 48px rgba(0,0,0,0.35);}
.project-card--featured{grid-column:1/-1;border-color:rgba(0,229,255,0.1);}
.project-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:4px;}
.project-num{font-family:var(--font-mono);font-size:10px;color:var(--text3);letter-spacing:0.15em;}
.featured-badge{font-family:var(--font-mono);font-size:10px;color:var(--accent);background:var(--accent-dim);border:1px solid rgba(0,229,255,0.15);padding:3px 9px;border-radius:4px;letter-spacing:0.06em;}
.project-links{display:flex;gap:8px;}
.icon-link{width:30px;height:30px;display:flex;align-items:center;justify-content:center;border-radius:6px;border:1px solid var(--border);color:var(--text3);font-size:14px;transition:var(--tr);}
.icon-link:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-dim);}
.project-title{font-family:var(--font-head);font-size:20px;font-weight:700;letter-spacing:-0.02em;color:var(--text);}
.project-type{font-family:var(--font-mono);font-size:11px;color:var(--accent);letter-spacing:0.06em;}
.project-desc{color:var(--text2);font-size:13.5px;line-height:1.7;flex:1;}
.project-stack{display:flex;flex-wrap:wrap;gap:6px;margin-top:4px;}
.project-stack span{font-family:var(--font-mono);font-size:10.5px;color:var(--text3);background:var(--bg3);border:1px solid var(--border);padding:3px 9px;border-radius:4px;}
.project-btns{display:flex;gap:9px;margin-top:4px;}

/* ===== TIMELINE ===== */
.timeline{position:relative;padding-left:28px;}
.timeline::before{content:'';position:absolute;left:0;top:8px;bottom:0;width:1px;background:linear-gradient(to bottom,var(--accent),transparent);}
.timeline-item{position:relative;margin-bottom:48px;}
.timeline-item:last-child{margin-bottom:0;}
.timeline-dot{position:absolute;left:-33px;top:6px;width:10px;height:10px;border-radius:50%;background:var(--accent);border:2px solid var(--bg2);box-shadow:0 0 8px rgba(0,229,255,0.5);}
.timeline-date{font-family:var(--font-mono);font-size:11px;color:var(--accent);letter-spacing:0.1em;text-transform:uppercase;margin-bottom:8px;}
.timeline-content h3{font-family:var(--font-head);font-size:21px;font-weight:700;letter-spacing:-0.02em;margin-bottom:4px;}
.timeline-role{font-size:13px;color:var(--text3);font-family:var(--font-mono);margin-bottom:14px;letter-spacing:0.02em;}
.timeline-desc{color:var(--text2);font-size:14.5px;line-height:1.7;margin-bottom:16px;max-width:620px;}
.timeline-tags{display:flex;flex-wrap:wrap;gap:7px;}
.timeline-tags span{font-family:var(--font-mono);font-size:11px;color:var(--text3);background:var(--bg3);border:1px solid var(--border);padding:4px 10px;border-radius:4px;}

/* ===== CONTACT ===== */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:44px;}
.contact-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px 22px;text-align:center;transition:var(--tr);}
.contact-card:hover{border-color:rgba(0,229,255,0.2);transform:translateY(-2px);}
.contact-icon{font-size:24px;display:block;margin-bottom:12px;}
.contact-card h3{font-family:var(--font-head);font-size:15px;font-weight:600;letter-spacing:-0.01em;margin-bottom:8px;}
.contact-card a{font-size:12px;color:var(--accent);font-family:var(--font-mono);word-break:break-all;letter-spacing:0.02em;transition:color 0.2s;}
.contact-card a:hover{color:var(--text);}
.contact-cta{text-align:center;}

/* ===== FOOTER ===== */
footer{background:var(--bg2);border-top:1px solid var(--border);padding:26px 0;}
.footer-inner{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;}
.footer-inner p{color:var(--text3);font-size:13px;}
.footer-links{display:flex;gap:20px;}
.footer-links a{color:var(--text3);font-size:13px;transition:color 0.2s;}
.footer-links a:hover{color:var(--accent);}

/* ===== RESPONSIVE ===== */
@media(max-width:1024px){.skills-grid{grid-template-columns:repeat(2,1fr);}.about-grid{grid-template-columns:1fr;}}
@media(max-width:800px){
  .nav-links,.btn-nav{display:none;}.hamburger{display:flex;}
  #hero{flex-direction:column;padding-top:110px;padding-bottom:60px;text-align:center;}
  .hero-content{max-width:100%;}.hero-cta{justify-content:center;}.hero-meta{justify-content:center;}
  .available-badge{justify-content:center;}.hero-code{width:100%;max-width:100%;}
  .projects-grid{grid-template-columns:1fr;}.project-card--featured{grid-column:auto;}
  .contact-grid{grid-template-columns:1fr;}.skills-grid{grid-template-columns:1fr;}
  .about-stats{flex-wrap:wrap;gap:20px;}.footer-inner{flex-direction:column;text-align:center;}
}
@media(max-width:480px){.section{padding:72px 0;}.hero-cta{flex-direction:column;align-items:center;}}