:root {
  --color-primary: #18181B;
  --color-on-primary: #FFFFFF;
  --color-secondary: #3F3F46;
  --color-accent: #2563EB;
  --color-bg: #FAFAFA;
  --color-fg: #09090B;
  --color-muted: #E8ECF0;
  --color-border: #E4E4E7;
  --font-heading: 'Noto Naskh Arabic', serif;
  --font-body: 'Noto Sans Arabic', sans-serif;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-card: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --shadow-lg: 0 10px 40px rgba(0,0,0,.08);
  --max-width: 1200px;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-body);background:var(--color-bg);color:var(--color-fg);line-height:1.75;font-size:clamp(1rem,1.7vw,1.125rem);direction:rtl;overflow-x:hidden}
h1,h2,h3,h4{font-family:var(--font-heading);font-weight:700;line-height:1.3}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{cursor:pointer;font-family:inherit}

/* Navbar */
.navbar{position:fixed;top:0;right:0;left:0;z-index:100;background:rgba(250,250,250,.8);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--color-border);padding:0 2rem;transition:all .3s}
.navbar.scrolled{box-shadow:0 2px 20px rgba(0,0,0,.06)}
.nav-inner{max-width:var(--max-width);margin:0 auto;display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{font-family:var(--font-heading);font-size:1.3rem;font-weight:700;color:var(--color-primary)}
.logo span{color:var(--color-accent)}
.nav-links{display:flex;gap:2rem;list-style:none}
.nav-links a{font-size:.9rem;font-weight:500;color:var(--color-secondary);transition:color .2s;position:relative;padding:4px 0}
.nav-links a::after{content:'';position:absolute;bottom:0;right:0;width:0;height:2px;background:var(--color-accent);transition:width .3s}
.nav-links a:hover,.nav-links a.active{color:var(--color-accent)}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.menu-btn{display:none;background:none;border:none;font-size:1.6rem;color:var(--color-primary)}
@media(max-width:768px){.nav-links{display:none;position:absolute;top:64px;right:0;left:0;background:var(--color-bg);flex-direction:column;padding:1.5rem 2rem;gap:1.2rem;border-bottom:1px solid var(--color-border);box-shadow:var(--shadow-lg)}.nav-links.open{display:flex}.menu-btn{display:block}}

/* Hero */
.hero{min-height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:6rem 2rem 4rem;position:relative;overflow:hidden;background:linear-gradient(135deg,#18181B 0%,#1e1e24 30%,#18181B 70%,#0f0f12 100%);color:var(--color-on-primary)}
.hero::before{content:'';position:absolute;top:-50%;right:-20%;width:80%;height:180%;background:radial-gradient(circle at center,rgba(37,99,235,.12) 0%,transparent 70%);animation:float 12s ease-in-out infinite}
.hero::after{content:'';position:absolute;bottom:-30%;left:-10%;width:60%;height:120%;background:radial-gradient(circle at center,rgba(37,99,235,.08) 0%,transparent 70%);animation:float 15s ease-in-out infinite reverse}
@keyframes float{0%,100%{transform:translate(0,0) scale(1)}33%{transform:translate(-20px,20px) scale(1.05)}66%{transform:translate(15px,-15px) scale(.95)}}
.hero-content{position:relative;z-index:1;max-width:800px}
.hero-badge{display:inline-block;background:rgba(37,99,235,.15);color:#60a5fa;border:1px solid rgba(37,99,235,.25);padding:.4rem 1.2rem;border-radius:50px;font-size:.85rem;font-weight:500;margin-bottom:1.5rem}
.hero h1{font-size:clamp(2.5rem,6vw,4rem);margin-bottom:.5rem;animation:fadeUp .8s ease-out both;animation-delay:.1s}
.hero h1 span{color:var(--color-accent)}
.tagline{font-size:clamp(1.1rem,2.2vw,1.4rem);color:#a1a1aa;margin-bottom:2rem;font-weight:400;animation:fadeUp .8s ease-out both;animation-delay:.25s}
.dual-roles{display:flex;gap:1.5rem;justify-content:center;flex-wrap:wrap;margin-bottom:2.5rem;animation:fadeUp .8s ease-out both;animation-delay:.4s}
.role-card{background:rgba(255,255,255,.05);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.08);border-radius:var(--radius-md);padding:1.2rem 1.8rem;min-width:200px;transition:all .4s}
.role-card:hover{transform:translateY(-4px);border-color:rgba(37,99,235,.4);background:rgba(37,99,235,.08)}
.role-card .icon{font-size:2rem;margin-bottom:.5rem}
.role-card .label{font-size:.8rem;color:#a1a1aa;margin-bottom:.2rem}
.role-card .title{font-family:var(--font-heading);font-size:1.1rem;font-weight:600}
.hero-cta{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap;animation:fadeUp .8s ease-out both;animation-delay:.55s}
.btn-primary{background:var(--color-accent);color:#fff;padding:.85rem 2.2rem;border-radius:50px;font-weight:600;border:none;font-size:1rem;transition:all .3s;display:inline-block}
.btn-primary:hover{background:#1d4ed8;transform:translateY(-2px);box-shadow:0 8px 25px rgba(37,99,235,.35)}
.btn-outline{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.25);padding:.85rem 2.2rem;border-radius:50px;font-weight:600;font-size:1rem;transition:all .3s;display:inline-block}
.btn-outline:hover{border-color:var(--color-accent);color:var(--color-accent);transform:translateY(-2px)}
@keyframes fadeUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}

/* Sections */
.section{padding:5rem 2rem}
.container{max-width:var(--max-width);margin:0 auto}
.section-header{text-align:center;margin-bottom:3.5rem}
.section-header .label{display:inline-block;font-size:.8rem;font-weight:600;color:var(--color-accent);text-transform:uppercase;letter-spacing:.06em;margin-bottom:.5rem}
.section-header h2{font-size:clamp(1.8rem,3.5vw,2.5rem);color:var(--color-primary)}
.section-header p{color:var(--color-secondary);margin-top:.5rem;max-width:600px;margin-inline:auto}

/* About */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center}
.about-text p{margin-bottom:1.2rem;color:var(--color-secondary)}
.motto{font-family:var(--font-heading);font-size:1.4rem;color:var(--color-accent);font-weight:600;border-right:3px solid var(--color-accent);padding-right:1rem;margin-top:2rem}
.about-stats{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.stat-box{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-md);padding:1.5rem;text-align:center;transition:all .3s}
.stat-box:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.stat-box .num{font-family:var(--font-heading);font-size:2rem;font-weight:700;color:var(--color-accent)}
.stat-box .desc{font-size:.85rem;color:var(--color-secondary);margin-top:.3rem}
@media(max-width:768px){.about-grid{grid-template-columns:1fr}}

/* Services */
.services-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.25rem}
.service-card{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-md);padding:1.8rem;transition:all .3s;cursor:default}
.service-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--color-accent)}
.service-card .icon-svg{width:44px;height:44px;background:rgba(37,99,235,.08);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:1.4rem;margin-bottom:1rem}
.service-card h3{font-size:1.1rem;margin-bottom:.5rem;color:var(--color-primary)}
.service-card p{font-size:.9rem;color:var(--color-secondary)}

/* Skills */
.skills-section{background:#fff;border-top:1px solid var(--color-border);border-bottom:1px solid var(--color-border);margin-top:4rem;padding:4rem 2rem}
.sub-head{font-size:1.1rem;margin-bottom:1rem;margin-top:2rem;color:var(--color-primary)}
.sub-head:first-of-type{margin-top:0}
.skills-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:1rem}
.skill-chip{display:flex;align-items:center;gap:.6rem;background:var(--color-bg);border:1px solid var(--color-border);border-radius:50px;padding:.6rem 1.2rem;font-size:.9rem;font-weight:500;transition:all .25s}
.skill-chip:hover{border-color:var(--color-accent);background:rgba(37,99,235,.05);transform:translateX(4px)}
.skill-chip .dot{width:8px;height:8px;border-radius:50%;background:var(--color-accent);flex-shrink:0}

/* Telecom */
.telecom-section{background:var(--color-primary);color:var(--color-on-primary)}
.telecom-section .section-header h2{color:#fff}
.telecom-section .section-header p{color:#a1a1aa}
.telecom-section .section-header .label{color:#60a5fa}
.telecom-subtitle{font-size:1.2rem;margin:3rem 0 1.2rem;color:#fff}
.telecom-subtitle:first-of-type{margin-top:2.5rem}
.timeline{position:relative;padding-right:2rem;margin-bottom:1rem}
.timeline::before{content:'';position:absolute;right:0;top:0;bottom:0;width:2px;background:rgba(255,255,255,.12)}
.timeline-item{position:relative;padding-right:2rem;padding-bottom:1rem}
.timeline-item::before{content:'';position:absolute;right:-2.45rem;top:.4rem;width:12px;height:12px;border-radius:50%;background:var(--color-accent);border:3px solid var(--color-primary)}
.timeline-item h3{font-size:1.15rem;color:#fff;margin-bottom:.3rem}
.timeline-item .period{font-size:.8rem;color:#60a5fa;margin-bottom:.8rem}
.timeline-item ul{list-style:none;padding:0}
.timeline-item li{font-size:.9rem;color:#a1a1aa;padding:.25rem 0;position:relative;padding-right:1rem}
.timeline-item li::before{content:'•';color:var(--color-accent);position:absolute;right:0}

.dark-chip{background:rgba(255,255,255,.06)!important;border:1px solid rgba(255,255,255,.1)!important;color:#d4d4d8!important}
.dark-chip:hover{border-color:rgba(37,99,235,.4)!important;background:rgba(37,99,235,.1)!important}
.cert-chip .dot{background:#60a5fa!important}

.achievements-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1rem;margin-top:3rem}
.achievement-card{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:var(--radius-md);padding:1.5rem;transition:all .3s}
.achievement-card:hover{border-color:rgba(37,99,235,.3);background:rgba(37,99,235,.06);transform:translateY(-3px)}
.achievement-card h4{color:#fff;font-size:1rem;margin-bottom:.4rem}
.achievement-card p{color:#a1a1aa;font-size:.85rem}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:start}
.contact-info h3{font-size:1.4rem;margin-bottom:1rem;color:var(--color-primary)}
.info-item{display:flex;align-items:center;gap:.8rem;padding:.7rem 0;color:var(--color-secondary);font-size:.95rem}
.info-icon{width:40px;height:40px;background:rgba(37,99,235,.08);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.1rem;flex-shrink:0}
.contact-form{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:2rem;position:relative}
.form-group{margin-bottom:1.2rem}
.form-group label{display:block;font-size:.85rem;font-weight:500;margin-bottom:.4rem;color:var(--color-primary)}
.form-group input,.form-group textarea{width:100%;padding:.8rem 1rem;border:1px solid var(--color-border);border-radius:var(--radius-sm);font-family:var(--font-body);font-size:.95rem;background:var(--color-bg);transition:border-color .2s}
.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--color-accent);box-shadow:0 0 0 3px rgba(37,99,235,.1)}
.form-group textarea{min-height:120px;resize:vertical}
.form-submit{width:100%;background:var(--color-accent);color:#fff;border:none;padding:.9rem;border-radius:50px;font-size:1rem;font-weight:600;transition:all .3s}
.form-submit:hover{background:#1d4ed8;transform:translateY(-2px);box-shadow:0 8px 25px rgba(37,99,235,.3)}
.form-success{display:none;text-align:center;background:#ecfdf5;color:#065f46;padding:1rem;border-radius:8px;margin-top:1rem;font-size:.9rem}
.form-success.show{display:block}
@media(max-width:768px){.contact-grid{grid-template-columns:1fr}}

/* Footer */
.footer{background:var(--color-primary);color:#a1a1aa;text-align:center;padding:2.5rem 2rem;font-size:.85rem}
.footer-motto{font-family:var(--font-heading);font-size:1.2rem;color:var(--color-accent);margin-bottom:.5rem}
.footer-loc{margin-top:.3rem;font-size:.8rem}

/* Scroll Reveal */
.reveal{opacity:0;transform:translateY(40px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

/* Responsive */
@media(max-width:640px){
  .hero{padding:5rem 1rem 3rem}
  .section{padding:3.5rem 1rem}
  .hero h1{font-size:2rem}
  .dual-roles{flex-direction:column;align-items:center}
  .hero-cta{flex-direction:column;align-items:center}
  .services-grid{grid-template-columns:1fr}
  .skills-grid{grid-template-columns:1fr 1fr}
  .achievements-grid{grid-template-columns:1fr}
}

@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .hero h1,.tagline,.dual-roles,.hero-cta{animation:none;opacity:1;transform:none}
  .hero::before,.hero::after{animation:none}
}

/* ========== Chat Widget ========== */
.chat-widget{position:fixed;bottom:24px;left:24px;z-index:1000;font-family:var(--font-body)}
.chat-toggle{width:56px;height:56px;border-radius:50%;background:var(--color-accent);color:#fff;border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 4px 20px rgba(37,99,235,.35);transition:all .3s;position:relative;z-index:2}
.chat-toggle:hover{transform:scale(1.08);box-shadow:0 6px 28px rgba(37,99,235,.45)}
.chat-icon-close{display:none}
.chat-widget.open .chat-icon-open{display:none}
.chat-widget.open .chat-icon-close{display:block}

.chat-panel{position:absolute;bottom:72px;left:0;width:370px;max-width:calc(100vw - 48px);height:520px;max-height:calc(100vh - 140px);background:#fff;border-radius:var(--radius-lg);box-shadow:0 10px 50px rgba(0,0,0,.15);display:none;flex-direction:column;overflow:hidden;border:1px solid var(--color-border)}
.chat-widget.open .chat-panel{display:flex;animation:chatSlideUp .35s ease-out}
@keyframes chatSlideUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}

.chat-header{display:flex;align-items:center;gap:.8rem;padding:1rem 1.2rem;background:var(--color-primary);color:#fff;border-radius:var(--radius-lg) var(--radius-lg) 0 0}
.chat-header-avatar{width:42px;height:42px;background:var(--color-accent);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.2rem;flex-shrink:0}
.chat-header-info h4{font-size:1rem;font-weight:600;color:#fff}
.chat-header-info span{font-size:.75rem;color:#a1a1aa;position:relative;padding-right:10px}
.chat-header-info span::before{content:'';position:absolute;right:0;top:50%;transform:translateY(-50%);width:6px;height:6px;background:#22c55e;border-radius:50%}

.chat-messages{flex:1;overflow-y:auto;padding:1.2rem;display:flex;flex-direction:column;gap:.8rem;background:var(--color-bg)}
.chat-messages::-webkit-scrollbar{width:4px}
.chat-messages::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:4px}

.chat-msg{display:flex;flex-direction:column;max-width:90%}
.chat-msg.user{align-self:flex-end;align-items:flex-end}
.chat-msg.bot{align-self:flex-start;align-items:flex-start}

.msg-bubble{padding:.7rem 1rem;border-radius:16px;font-size:.9rem;line-height:1.65;word-break:break-word}
.chat-msg.bot .msg-bubble{background:#fff;border:1px solid var(--color-border);border-bottom-right-radius:4px;color:var(--color-fg)}
.chat-msg.user .msg-bubble{background:var(--color-accent);color:#fff;border-bottom-left-radius:4px}

.msg-options{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:.6rem;max-width:100%}
.msg-opt{background:#fff;border:1px solid var(--color-border);border-radius:50px;padding:.5rem 1rem;font-size:.82rem;color:var(--color-secondary);cursor:pointer;transition:all .2s;font-family:var(--font-body);white-space:nowrap}
.msg-opt:hover{border-color:var(--color-accent);color:var(--color-accent);background:rgba(37,99,235,.04)}

.msg-typing .msg-bubble{display:flex;gap:4px;padding:.8rem 1.2rem}
.msg-typing .msg-bubble span{width:7px;height:7px;background:var(--color-secondary);border-radius:50%;animation:typingDot 1.4s infinite}
.msg-typing .msg-bubble span:nth-child(2){animation-delay:.2s}
.msg-typing .msg-bubble span:nth-child(3){animation-delay:.4s}
@keyframes typingDot{0%,60%,100%{transform:translateY(0);opacity:.4}30%{transform:translateY(-6px);opacity:1}}

.chat-input-area{display:flex;gap:.5rem;padding:.8rem 1rem;border-top:1px solid var(--color-border);background:#fff}
.chat-input{flex:1;padding:.7rem 1rem;border:1px solid var(--color-border);border-radius:50px;font-family:var(--font-body);font-size:.9rem;outline:none;background:var(--color-bg);transition:border-color .2s}
.chat-input:focus{border-color:var(--color-accent)}
.chat-send{width:42px;height:42px;border-radius:50%;background:var(--color-accent);color:#fff;border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s;flex-shrink:0}
.chat-send:hover{background:#1d4ed8;transform:scale(1.05)}

@media(max-width:480px){
  .chat-panel{width:calc(100vw - 32px);left:-4px;bottom:68px;height:450px}
}