:root{--font-sans: "Inter", ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--color-primary: #000000;--color-primary-hover: #1d1d1f;--color-secondary: #ea580c;--color-secondary-hover: #c2410c;--color-text: #1d1d1f;--color-text-light: #6e6e73;--color-background: #ffffff;--color-background-alt: #fbfbfd;--color-border: #d2d2d7;--color-success: #34c759;--color-error: #ff3b30;--space-xs: .5rem;--space-sm: 1rem;--space-md: 1.5rem;--space-lg: 2rem;--space-xl: 3rem;--space-2xl: 4rem;--space-3xl: 6rem;--space-4xl: 8rem;--font-xs: .75rem;--font-sm: .875rem;--font-base: 1.0625rem;--font-lg: 1.1875rem;--font-xl: 1.3125rem;--font-2xl: 1.625rem;--font-3xl: 2.125rem;--font-4xl: 2.75rem;--font-5xl: 3.5rem;--font-6xl: 4.5rem;--leading-tight: 1.0833333333;--leading-normal: 1.4705882353;--leading-relaxed: 1.381966011;--radius-sm: .25rem;--radius-md: .375rem;--radius-lg: .5rem;--radius-xl: .75rem;--radius-full: 9999px;--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-base: .3s cubic-bezier(.4, 0, .2, 1);--transition-slow: .5s cubic-bezier(.4, 0, .2, 1);--shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, .04);--shadow-md: 0 2px 8px 0 rgba(0, 0, 0, .08);--shadow-lg: 0 8px 24px 0 rgba(0, 0, 0, .12);--shadow-xl: 0 16px 48px 0 rgba(0, 0, 0, .16)}*{box-sizing:border-box}html,body{margin:0;padding:0;font-family:var(--font-sans);color:var(--color-text);background-color:var(--color-background);line-height:var(--leading-normal);font-size:var(--font-base);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}h1,h2,h3,h4,h5,h6{margin:0;font-weight:600;line-height:var(--leading-tight);letter-spacing:-.015em}h1{font-size:var(--font-5xl);font-weight:700}h2{font-size:var(--font-4xl);font-weight:600}h3{font-size:var(--font-3xl);font-weight:600}h4{font-size:var(--font-2xl);font-weight:600}h5{font-size:var(--font-xl);font-weight:600}h6{font-size:var(--font-lg);font-weight:600}p{margin:0;line-height:var(--leading-relaxed)}a{color:var(--color-primary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--color-primary-dark)}button{font-family:inherit}.container{max-width:1200px;margin:0 auto;padding:0 var(--space-md)}.section{padding:var(--space-4xl) 0;border-top:1px dashed var(--color-border)}.section:first-of-type{border-top:none}.btn{display:inline-block;padding:.75rem 1.5rem;border-radius:var(--radius-md);font-weight:400;font-size:var(--font-base);text-align:center;cursor:pointer;border:none;transition:all var(--transition-base);letter-spacing:-.01em}.btn-sm{padding:.5rem 1rem;font-size:var(--font-sm)}.btn-primary{background-color:var(--color-secondary);color:#fff}.btn-primary:hover{background-color:var(--color-secondary-hover);color:#fff}.btn-secondary{background-color:transparent;color:var(--color-secondary);border:1.5px solid var(--color-secondary)}.btn-secondary:hover{background-color:var(--color-secondary);color:#fff}.card{background-color:var(--color-background);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-xl);transition:all var(--transition-base)}.card:hover{border-color:var(--color-text-light);transform:translateY(-2px)}.header{position:sticky;top:0;z-index:100;background-color:#fffc;-webkit-backdrop-filter:saturate(180%) blur(8px);backdrop-filter:saturate(180%) blur(8px);border-bottom:1px solid rgba(210,210,215,.48);padding:.875rem 0}.header-content{display:flex;justify-content:space-between;align-items:center}.logo{font-size:var(--font-xl);font-weight:600;color:var(--color-text);letter-spacing:-.02em}.nav-link{padding:var(--space-xs) var(--space-md);border-radius:var(--radius-sm);transition:opacity var(--transition-fast);color:var(--color-text);font-size:var(--font-sm);opacity:.92}.nav-link:hover{opacity:1;color:var(--color-text)}.footer{background-color:var(--color-background-alt);border-top:1px solid var(--color-border);padding:var(--space-md) 0}.footer-content{display:flex;flex-direction:row;align-items:center;justify-content:space-between;gap:var(--space-md)}.footer-logo{font-size:var(--font-lg);font-weight:600;color:var(--color-text);letter-spacing:-.02em}.footer-text{color:var(--color-text-light);font-size:var(--font-xs)}@media(max-width:640px){.footer-content{flex-direction:column;text-align:center}}.form-group{margin-bottom:0}.form-label{display:block;margin-bottom:var(--space-xs);font-weight:500;color:var(--color-text);font-size:var(--font-sm)}.form-input,.form-textarea{width:100%;padding:.625rem .875rem;border:1px solid var(--color-border);border-radius:var(--radius-md);font-family:inherit;font-size:var(--font-base);background-color:var(--color-background);color:var(--color-text);transition:border-color var(--transition-fast)}.form-input:focus,.form-textarea:focus{outline:none;border-color:var(--color-primary)}.form-textarea{resize:vertical;min-height:150px}.form-error{color:var(--color-error);font-size:var(--font-sm);margin-top:var(--space-xs)}.form-success{color:var(--color-success);font-size:var(--font-sm);margin-top:var(--space-xs)}.tech-section{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-4xl);align-items:center}.tech-section-reverse{direction:rtl}.tech-section-reverse>*{direction:ltr}.tech-content{max-width:480px}.tech-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(80px,1fr));gap:var(--space-lg);padding:var(--space-lg)}.tech-logo{display:flex;align-items:center;justify-content:center;padding:var(--space-sm);transition:all var(--transition-base);position:relative}.tech-logo img{width:56px;height:56px;filter:grayscale(100%);opacity:.4;transition:all var(--transition-base)}.tech-logo:hover img{filter:grayscale(0%);opacity:1;transform:scale(1.1)}.tech-tooltip{position:fixed;background-color:var(--color-text);color:var(--color-background);padding:.25rem .5rem;border-radius:var(--radius-sm);font-size:var(--font-xs);font-weight:500;white-space:nowrap;pointer-events:none;z-index:1000;opacity:0;transition:opacity var(--transition-fast)}.tech-tooltip.visible{opacity:1}@media(max-width:1024px){.tech-section{grid-template-columns:1fr;gap:var(--space-2xl)}.tech-section-reverse{direction:ltr}.tech-content{max-width:100%;text-align:center}.tech-grid{justify-content:center}}@media(max-width:768px){:root{--font-5xl: 2.5rem;--font-4xl: 2rem;--font-3xl: 1.75rem}.section{padding:var(--space-2xl) 0}.card{padding:var(--space-lg)}.tech-grid{grid-template-columns:repeat(auto-fit,minmax(64px,1fr));gap:var(--space-md);padding:var(--space-md)}.tech-logo img{width:44px;height:44px}}