:root{--primary-color: #5e60ce;--primary-dark: #4c4dbd;--primary-light: #7678ed;--secondary-color: #48cae4;--accent-color: #f72585;--bg-primary: #ffffff;--bg-secondary: #f8f9fa;--bg-tertiary: #e9ecef;--text-primary: #2b2d42;--text-secondary: #6c757d;--text-light: #adb5bd;--dark-bg-primary: #0d1117;--dark-bg-secondary: #161b22;--dark-bg-tertiary: #21262d;--dark-text-primary: #e6edf3;--dark-text-secondary: #8b949e;--gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);--gradient-accent: linear-gradient(135deg, var(--accent-color) 0%, var(--primary-color) 100%);--gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--shadow-sm: 0 2px 4px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px rgba(0, 0, 0, .07);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .1);--shadow-xl: 0 20px 25px rgba(0, 0, 0, .15);--spacing-xs: .5rem;--spacing-sm: 1rem;--spacing-md: 1.5rem;--spacing-lg: 2rem;--spacing-xl: 3rem;--spacing-2xl: 4rem;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--font-primary: "Poppins", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-secondary: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--transition-fast: .15s ease-in-out;--transition-base: .25s ease-in-out;--transition-slow: .35s ease-in-out;--z-dropdown: 1000;--z-sticky: 1020;--z-fixed: 1030;--z-modal: 1040;--z-tooltip: 1050}[data-theme=dark]{--bg-primary: var(--dark-bg-primary);--bg-secondary: var(--dark-bg-secondary);--bg-tertiary: var(--dark-bg-tertiary);--text-primary: var(--dark-text-primary);--text-secondary: var(--dark-text-secondary)}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;font-size:16px}body{font-family:var(--font-secondary);color:var(--text-primary);background-color:var(--bg-primary);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background-color var(--transition-base),color 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var(--transition-base);text-decoration:none}.btn-primary{background:var(--gradient-primary);color:#fff;box-shadow:var(--shadow-md)}.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}.btn-outline{background:transparent;color:var(--primary-color);border:2px solid var(--primary-color)}.btn-outline:hover{background:var(--primary-color);color:#fff}.card{background:var(--bg-primary);border-radius:var(--radius-lg);padding:var(--spacing-lg);box-shadow:var(--shadow-md);transition:all var(--transition-base)}.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-xl)}.section-title{text-align:center;margin-bottom:var(--spacing-xl)}.section-title h2{position:relative;display:inline-block;padding-bottom:var(--spacing-sm)}.section-title h2:after{content:"";position:absolute;bottom:0;left:50%;transform:translate(-50%);width:60px;height:4px;background:var(--gradient-primary);border-radius:2px}.section-subtitle{margin-top:3rem}.spinner{width:50px;height:50px;border:4px 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var(--primary-color)}.tech-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-xl)}.tech-header{margin-bottom:1rem}.tech-layer{display:inline-block;font-size:.875rem;font-weight:600;color:#fff;background:var(--gradient-primary);padding:.375rem .875rem;border-radius:var(--radius-sm);margin-bottom:.75rem}.tech-name{font-size:1.75rem;font-weight:700;color:var(--text-primary);margin-top:.5rem}.tech-description{color:var(--text-secondary);line-height:1.7;margin-bottom:1.5rem}.tech-features{list-style:none;padding:0}.tech-features li{padding:.5rem 0 .5rem 1.5rem;position:relative;color:var(--text-secondary);font-size:.95rem}.tech-features li:before{content:"✓";position:absolute;left:0;color:var(--primary-color);font-weight:700}@media(max-width:768px){.architecture-diagram{padding:1.5rem;margin:2rem 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transparent}.contact-item:hover{border-color:var(--primary-color);transform:translate(10px);box-shadow:var(--shadow-md)}.contact-icon{width:60px;height:60px;background:var(--gradient-primary);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.5rem;flex-shrink:0}.contact-details h3{font-size:1.125rem;font-weight:600;color:var(--text-primary);margin-bottom:.5rem}.contact-details a{color:var(--primary-color);text-decoration:none;transition:color var(--transition-fast)}.contact-details a:hover{color:var(--primary-dark);text-decoration:underline}.contact-details p{color:var(--text-secondary);margin:0}.contact-cta{background:var(--gradient-primary);padding:3rem;border-radius:var(--radius-lg);color:#fff;display:flex;flex-direction:column;justify-content:center;text-align:center;box-shadow:var(--shadow-lg)}.contact-cta h3{font-size:2rem;margin-bottom:1rem;color:#fff}.contact-cta p{font-size:1.125rem;line-height:1.8;margin-bottom:2rem;opacity:.95}.contact-cta .btn{align-self:center;background:#fff;color:var(--primary-color);border:none;font-weight:600}.contact-cta .btn:hover{transform:translateY(-3px);box-shadow:0 10px 25px #0000004d}@media(max-width:968px){.contact-content{grid-template-columns:1fr;gap:2rem}.contact-cta{padding:2rem}}@media(max-width:768px){.contact-item{flex-direction:row;text-align:left;align-items:flex-start;padding:1.25rem}.contact-icon{width:50px;height:50px;font-size:1.25rem}.contact-item:hover{transform:translate(5px)}.contact-cta{padding:2rem 1.5rem}.contact-cta h3{font-size:1.75rem}.contact-cta p{font-size:1rem}}@media(max-width:480px){.contact-item{flex-direction:column;text-align:center;align-items:center;padding:1rem}.contact-icon{width:45px;height:45px;font-size:1.125rem}.contact-details h3{font-size:1rem}.contact-details a,.contact-details p{font-size:.9rem}.contact-item:hover{transform:translateY(-5px)}.contact-cta{padding:1.5rem 1rem}.contact-cta h3{font-size:1.5rem}.contact-cta p{font-size:.95rem;margin-bottom:1.5rem}.contact-cta .btn{width:100%;max-width:100%}}.footer{background:var(--dark-bg-primary);color:var(--dark-text-primary);padding:3rem 0 1.5rem;position:relative}.footer-content{display:grid;grid-template-columns:2fr 1fr 1fr;gap:3rem;padding-bottom:2rem;border-bottom:1px solid var(--dark-bg-tertiary)}.footer-logo{font-family:var(--font-primary);font-size:1.75rem;font-weight:700;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:1rem}.footer-description{color:var(--dark-text-secondary);line-height:1.6;max-width:400px}.footer-links h4,.footer-social h4{font-size:1.125rem;font-weight:600;margin-bottom:1rem;color:#fff}.footer-links ul{list-style:none;padding:0}.footer-links li{margin-bottom:.75rem}.footer-links a{color:var(--dark-text-secondary);text-decoration:none;transition:color var(--transition-fast)}.footer-links a:hover{color:var(--primary-color)}.social-links{display:flex;gap:1rem}.social-links a{width:45px;height:45px;display:flex;align-items:center;justify-content:center;background:var(--dark-bg-secondary);border:2px solid var(--dark-bg-tertiary);border-radius:50%;color:var(--dark-text-primary);font-size:1.25rem;transition:all var(--transition-base)}.social-links a:hover{background:var(--gradient-primary);border-color:transparent;color:#fff;transform:translateY(-5px)}.footer-bottom{text-align:center;padding-top:2rem;color:var(--dark-text-secondary);font-size:.9rem}.scroll-to-top{position:fixed;bottom:2rem;right:2rem;width:50px;height:50px;background:var(--gradient-primary);border:none;border-radius:50%;color:#fff;font-size:1.5rem;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-lg);transition:all var(--transition-base);z-index:var(--z-fixed);opacity:0;visibility:hidden;animation:fadeInUp .3s ease forwards}@keyframes fadeInUp{to{opacity:1;visibility:visible}}.scroll-to-top:hover{transform:translateY(-5px);box-shadow:var(--shadow-xl)}@media(max-width:968px){.footer-content{grid-template-columns:1fr 1fr;gap:2rem}.footer-info{grid-column:1 / -1}}@media(max-width:768px){.footer-content{grid-template-columns:1fr;text-align:center}.footer-description{margin:0 auto}.social-links{justify-content:center}.scroll-to-top{bottom:1rem;right:1rem;width:45px;height:45px}}