:root{--primary-color: #00a0a0;--background-color: #ffffff;--surface-color: #f8f9fa;--card-background: #ffffff;--text-color: #333333;--text-secondary: #666666;--border-color: #e0e0e0;--shadow-color: rgba(0, 0, 0, .1);--light-gray: #f0f0f0;--dark-gray: #343a40;--hover-color: #f5f5f5;--nav-background: rgba(255, 255, 255, .9);--font-primary: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-arabic: "Cairo", "Tajawal", "Noto Sans Arabic", sans-serif}[data-theme=dark]{--primary-color: #00ffff;--background-color: #1a1a1a;--surface-color: #242424;--card-background: #2d2d2d;--text-color: #ffffff;--text-secondary: #cccccc;--border-color: #404040;--shadow-color: rgba(0, 0, 0, .3);--light-gray: #333333;--dark-gray: #e9ecef;--hover-color: #363636;--nav-background: rgba(26, 26, 26, .9)}*{margin:0;padding:0;box-sizing:border-box}html{font-family:var(--font-primary);overflow-x:hidden}html[dir=rtl],html[dir=rtl] 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.nav-content,html[dir=rtl] .hero-content{flex-direction:row-reverse}html[dir=rtl] .hero-text,html[dir=rtl] .about-text,html[dir=rtl] .contact-info{text-align:right}html[dir=rtl] .hero .social-links,html[dir=rtl] .hero .cta-buttons{justify-content:flex-end!important}html[dir=rtl] .social-links,html[dir=rtl] .cta-buttons{flex-direction:row-reverse}html[dir=rtl] .experience-timeline .timeline-marker,html[dir=rtl] .education-timeline .timeline-marker{left:auto;right:0}html[dir=rtl] .info-item i,html[dir=rtl] .skill-item i,html[dir=rtl] .achievements li i{margin-right:0;margin-left:.5rem}html[dir=rtl] .quick-info .info-item i{margin-right:0;margin-left:.75rem}html[dir=rtl] .tech-stack,html[dir=rtl] .project-tech{flex-direction:row-reverse}html[dir=rtl] .form-group label,html[dir=rtl] .error-message,html[dir=rtl] .certificate-card{text-align:right}html[dir=rtl] .credential-link i{margin-left:0;margin-right:.5rem}html[dir=rtl] .certificate-download{left:auto;right:1rem}html[dir=rtl] .section-title{text-align:center}@media (max-width: 992px){html[dir=rtl] .hero-content,html[dir=rtl] .about-content,html[dir=rtl] .contact-content{flex-direction:column-reverse}html[dir=rtl] .hero-text,html[dir=rtl] .about-text{text-align:center}html[dir=rtl] .social-links,html[dir=rtl] .cta-buttons{justify-content:center}}@media (max-width: 576px){html[dir=rtl] .cta-buttons{flex-direction:column}}:root{--background-color: #ffffff;--surface-color: #f8f9fa;--text-color: #212529;--text-secondary: #6c757d;--primary-color: #00a0a0;--border-color: #dee2e6;--card-background: #ffffff;--hover-color: #e9ecef;--shadow-color: rgba(0, 0, 0, .1);--light-gray: #f1f3f5;--dark-gray: #343a40;--nav-background: rgba(255, 255, 255, .9)}[data-theme=dark]{--background-color: #1a1a1a;--surface-color: #2d2d2d;--text-color: #e9ecef;--text-secondary: #adb5bd;--primary-color: #00ffff;--border-color: #444444;--card-background: #2d2d2d;--hover-color: #3d3d3d;--shadow-color: rgba(0, 0, 0, .3);--light-gray: #3d3d3d;--dark-gray: #ced4da;--nav-background: rgba(26, 26, 26, .9)}.container{max-width:1200px;margin:0 auto;padding:0 2rem}.section{padding:5rem 0}.section-title{text-align:center;font-size:2.5rem;margin-bottom:3rem;color:var(--dark-gray)}*{transition:background-color .3s ease,color .3s ease}