:root{--primary:#B91C1C;--primary-hover:#991B1B;--primary-light:#FEF2F2;--primary-glow:rgba(185,28,28,0.12);--secondary:#111827;--secondary-hover:#1F2937;--accent:#D97706;--accent-light:#FFFBEB;--bg-body:#FFFFFF;--bg-surface:#F9FAFB;--bg-surface-elevated:#FFFFFF;--bg-surface-subtle:#F3F4F6;--text-main:#111827;--text-muted:#374151;--text-light:#4B5563;--text-inverse:#FFFFFF;--border-color:#E5E7EB;--border-subtle:#F3F4F6;--border-hover:#D1D5DB;--shadow-sm:0 1px 2px 0 rgba(0,0,0,0.05);--shadow-md:0 4px 6px -1px rgba(0,0,0,0.08),0 2px 4px -2px rgba(0,0,0,0.05);--shadow-lg:0 10px 15px -3px rgba(0,0,0,0.08),0 4px 6px -4px rgba(0,0,0,0.04);--shadow-xl:0 20px 25px -5px rgba(0,0,0,0.1),0 8px 10px -6px rgba(0,0,0,0.04);--shadow-card:0 2px 8px rgba(0,0,0,0.06);--font-sans:'Inter',-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;--font-display:'Outfit',-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--transition-fast:0.15s ease;--transition-normal:0.25s ease;--transition-slow:0.35s ease}*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}html{font-family:var(--font-sans);color:var(--text-main);background-color:var(--bg-body);scroll-behavior:smooth;line-height:1.6;-webkit-font-smoothing:antialiased}body{min-height:100vh;display:flex;flex-direction:column}.skip-link{position:absolute;top:-100px;left:20px;background-color:var(--primary);color:#FFFFFF;padding:12px 20px;border-radius:8px;font-weight:700;z-index:9999;transition:top 0.2s ease}.skip-link:focus{top:20px}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--primary);outline-offset:2px}img{max-width:100%;height:auto;display:block}a{color:inherit;text-decoration:none}button{font-family:inherit;cursor:pointer;border:none;background:none}.container{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}@media (min-width:768px){.container{padding:0 40px}}.section-padding{padding:80px 0}@media (min-width:768px){.section-padding{padding:100px 0}}#about,#services,#tech-stack,#portfolio,#team,#contact{content-visibility:auto;contain-intrinsic-size:1px 700px}.header{position:fixed;top:0;left:0;right:0;z-index:100;background-color:#FFFFFF;border-bottom:1px solid var(--border-color);transition:padding var(--transition-normal),box-shadow var(--transition-normal);padding:18px 0;height:80px;display:flex;align-items:center}.header.scrolled{padding:12px 0;box-shadow:var(--shadow-md)}.header-container{display:flex;align-items:center;justify-content:space-between;width:100%}.brand-logo{display:flex;flex-direction:column;align-items:flex-start}.brand-name{font-size:2rem;font-weight:900;color:var(--primary);line-height:1;letter-spacing:-0.02em;font-family:'Arial Black',Impact,sans-serif}.brand-sub{font-size:0.65rem;font-weight:700;color:var(--text-light);letter-spacing:0.15em;text-transform:uppercase;margin-top:3px}.nav-desktop{display:none;align-items:center;gap:28px}@media (min-width:992px){.nav-desktop{display:flex}}.nav-link{font-size:0.875rem;font-weight:700;text-transform:uppercase;letter-spacing:0.08em;color:var(--text-main);position:relative;transition:color var(--transition-fast)}.nav-link:hover{color:var(--primary)}.nav-link::after{content:'';position:absolute;bottom:-4px;left:0;width:0;height:2px;background-color:var(--primary);transition:width var(--transition-normal)}.nav-link:hover::after{width:100%}.lang-switcher{display:inline-flex;align-items:center;gap:4px;background-color:var(--bg-surface-subtle);border:1px solid var(--border-color);padding:3px 6px;border-radius:9999px;font-size:0.75rem;font-weight:800}.lang-btn{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;border-radius:9999px;color:var(--text-muted);transition:all var(--transition-fast);text-decoration:none}.lang-btn:hover{color:var(--primary)}.lang-btn.active{background-color:var(--primary);color:#FFFFFF !important;box-shadow:var(--shadow-sm)}.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;background-color:var(--primary);color:#FFFFFF !important;font-size:0.875rem;font-weight:700;letter-spacing:0.05em;text-transform:uppercase;padding:10px 22px;border-radius:9999px;box-shadow:0 4px 12px rgba(185,28,28,0.25);transition:all var(--transition-fast)}.btn-primary:hover{background-color:var(--primary-hover);transform:translateY(-2px);box-shadow:0 6px 16px rgba(185,28,28,0.35)}.btn-secondary{display:inline-flex;align-items:center;justify-content:center;gap:8px;background-color:transparent;color:var(--secondary);font-size:0.95rem;font-weight:700;padding:12px 24px;border-radius:9999px;transition:all var(--transition-fast)}.btn-secondary:hover{color:var(--primary);transform:translateX(4px)}.menu-toggle{display:flex;align-items:center;justify-content:center;padding:8px;color:var(--text-main);border-radius:8px}@media (min-width:992px){.menu-toggle{display:none}}.mobile-menu{position:absolute;top:100%;left:0;right:0;background-color:#FFFFFF;border-top:1px solid var(--border-color);box-shadow:var(--shadow-xl);display:none;flex-direction:column}.mobile-menu.open{display:flex}.mobile-menu .nav-link{padding:16px 24px;border-bottom:1px solid var(--border-color)}.mobile-menu-cta{padding:20px 24px;display:flex;flex-direction:column;gap:14px}.mobile-menu-cta .btn-primary{width:100%}.mobile-menu-lang{display:flex;justify-content:center;padding-top:6px}.hero{position:relative;background-color:var(--bg-surface);min-height:calc(100vh - 80px);display:flex;align-items:center;justify-content:center;text-align:center;padding-top:140px;padding-bottom:80px;border-bottom:1px solid var(--border-color);overflow:hidden}.hero-grid-bg{position:absolute;inset:0;background-image:linear-gradient(var(--border-color) 1px,transparent 1px),linear-gradient(90deg,var(--border-color) 1px,transparent 1px);background-size:60px 60px;opacity:0.4;pointer-events:none}.hero-content{position:relative;z-index:2;max-width:900px;margin:0 auto}.hero-badge{display:inline-flex;align-items:center;gap:8px;background-color:var(--primary-light);border:1px solid #FECACA;color:var(--primary);font-size:0.75rem;font-weight:800;letter-spacing:0.2em;text-transform:uppercase;padding:8px 18px;border-radius:9999px;margin-bottom:24px}.badge-dot{width:8px;height:8px;background-color:var(--primary);border-radius:50%;animation:pulse 2s infinite}@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:0.5;transform:scale(0.85)}}.hero-title{font-size:2.75rem;font-weight:900;line-height:1.05;color:var(--text-main);letter-spacing:-0.03em;margin-bottom:24px}@media (min-width:640px){.hero-title{font-size:4rem}}@media (min-width:1024px){.hero-title{font-size:4.75rem}}.hero-title .highlight{color:var(--primary)}.hero-desc{font-size:1.125rem;color:var(--text-muted);line-height:1.7;max-width:680px;margin:0 auto 36px}@media (min-width:768px){.hero-desc{font-size:1.25rem}}.hero-actions{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:16px;margin-bottom:48px}.hero-stats{display:inline-flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:32px;background-color:#FFFFFF;border:1px solid var(--border-color);padding:24px 40px;border-radius:20px;box-shadow:var(--shadow-md)}.stat-item{display:flex;flex-direction:column;align-items:center}.stat-number{font-size:2.25rem;font-weight:900;color:var(--primary);line-height:1}.stat-label{font-size:0.75rem;font-weight:700;text-transform:uppercase;letter-spacing:0.1em;color:var(--text-light);margin-top:6px}.section-header{text-align:center;max-width:720px;margin:0 auto 56px}.section-title{font-size:2.25rem;font-weight:900;color:var(--text-main);letter-spacing:-0.02em;line-height:1.2}@media (min-width:768px){.section-title{font-size:2.75rem}}.section-subtitle{font-size:1.1rem;color:var(--text-muted);margin-top:14px;line-height:1.6}.title-accent{position:relative;display:inline-block;color:var(--primary)}.title-accent::after{content:'';position:absolute;bottom:-10px;left:25%;width:50%;height:4px;background-color:var(--accent);border-radius:9999px}.about-grid{display:grid;grid-template-columns:1fr;gap:28px;margin-bottom:48px}@media (min-width:768px){.about-grid{grid-template-columns:1fr 1fr}}.solid-card{background-color:#FFFFFF;border:1px solid var(--border-color);border-radius:16px;padding:36px;box-shadow:var(--shadow-card);transition:transform var(--transition-normal),box-shadow var(--transition-normal),border-color var(--transition-normal)}.solid-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--border-hover)}.card-accent-top-primary{border-top:5px solid var(--primary)}.card-accent-top-accent{border-top:5px solid var(--accent)}.card-icon{font-size:2.5rem;margin-bottom:18px}.card-title{font-size:1.35rem;font-weight:800;color:var(--text-main);margin-bottom:12px}.card-body{font-size:1rem;color:var(--text-muted);line-height:1.7}.kpi-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;background-color:var(--bg-surface);border:1px solid var(--border-color);border-radius:20px;padding:16px}@media (min-width:768px){.kpi-grid{grid-template-columns:repeat(4,1fr)}}.kpi-item{background-color:#FFFFFF;border:1px solid var(--border-color);border-radius:14px;padding:24px 16px;text-align:center;transition:border-color var(--transition-fast)}.kpi-item:hover{border-color:var(--primary)}.kpi-num{font-size:2rem;font-weight:900;color:var(--primary);line-height:1}.kpi-label{font-size:0.75rem;font-weight:700;text-transform:uppercase;letter-spacing:0.08em;color:var(--text-light);margin-top:8px}.services-section{background-color:var(--bg-surface);border-top:1px solid var(--border-color);border-bottom:1px solid var(--border-color)}.services-grid{display:grid;grid-template-columns:1fr;gap:24px}@media (min-width:640px){.services-grid{grid-template-columns:repeat(2,1fr)}}@media (min-width:1024px){.services-grid{grid-template-columns:repeat(3,1fr)}}.service-card{background-color:#FFFFFF;border:1px solid var(--border-color);border-radius:18px;padding:32px;box-shadow:var(--shadow-sm);transition:all var(--transition-normal);display:flex;flex-direction:column}.service-card:hover{border-color:var(--accent);box-shadow:var(--shadow-lg);transform:translateY(-4px)}.service-icon-box{width:56px;height:56px;background-color:var(--primary-light);color:var(--primary);border-radius:14px;display:flex;align-items:center;justify-content:center;margin-bottom:22px;transition:all var(--transition-normal)}.service-card:hover .service-icon-box{background-color:var(--accent-light);color:var(--accent)}.service-title{font-size:1.2rem;font-weight:800;color:var(--text-main);margin-bottom:10px}.service-text{font-size:0.925rem;color:var(--text-muted);line-height:1.6;flex-grow:1}.service-bar{width:32px;height:3px;background-color:var(--accent);border-radius:9999px;margin-top:24px;transition:width var(--transition-normal)}.service-card:hover .service-bar{width:64px}.tech-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-bottom:48px}@media (min-width:768px){.tech-grid{grid-template-columns:repeat(4,1fr)}}.tech-card{background-color:#FFFFFF;border:1px solid var(--border-color);border-radius:16px;padding:28px 16px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;box-shadow:var(--shadow-sm);transition:all var(--transition-normal)}.tech-card:hover{border-color:var(--primary);box-shadow:var(--shadow-md);transform:translateY(-3px)}.tech-img-box{width:64px;height:64px;display:flex;align-items:center;justify-content:center}.tech-img-box img{width:64px;height:64px;object-fit:contain}.tech-name{font-size:1rem;font-weight:700;color:var(--text-main)}.construction-types-box{background-color:var(--bg-surface);border:1px solid var(--border-color);border-radius:24px;padding:40px 24px;text-align:center}.construction-badges{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-top:24px}.construction-badge{display:inline-flex;align-items:center;gap:10px;background-color:#FFFFFF;border:1px solid var(--border-color);padding:12px 22px;border-radius:9999px;font-size:0.85rem;font-weight:700;text-transform:uppercase;letter-spacing:0.05em;color:var(--text-main);box-shadow:var(--shadow-sm);transition:all var(--transition-fast)}.construction-badge:hover{border-color:var(--primary);color:var(--primary);box-shadow:var(--shadow-md);transform:translateY(-2px)}.portfolio-filters{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-bottom:40px}.filter-btn{padding:10px 22px;border-radius:9999px;font-size:0.875rem;font-weight:700;background-color:#FFFFFF;color:var(--text-main);border:1px solid var(--border-color);transition:all var(--transition-fast)}.filter-btn:hover{border-color:var(--primary);color:var(--primary)}.filter-btn.active{background-color:var(--primary);color:#FFFFFF;border-color:var(--primary);box-shadow:0 4px 12px rgba(185,28,28,0.25)}.portfolio-grid{display:grid;grid-template-columns:1fr;gap:24px;min-height:400px}@media (min-width:640px){.portfolio-grid{grid-template-columns:repeat(2,1fr)}}@media (min-width:1024px){.portfolio-grid{grid-template-columns:repeat(3,1fr)}}.project-card{position:relative;height:300px;border-radius:18px;overflow:hidden;box-shadow:var(--shadow-md);cursor:pointer;background-color:var(--secondary);transition:transform var(--transition-normal),box-shadow var(--transition-normal)}.project-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-xl)}.project-img{width:100%;height:100%;object-fit:cover;transition:transform 0.6s ease}.project-card:hover .project-img{transform:scale(1.08)}.project-overlay{position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,0.9) 0%,rgba(0,0,0,0.4) 50%,rgba(0,0,0,0.1) 100%);display:flex;flex-direction:column;justify-content:flex-end;padding:24px;opacity:0;transition:opacity var(--transition-normal)}.project-card:hover .project-overlay{opacity:1}.project-category-tag{color:#FBBF24;font-size:0.75rem;font-weight:800;text-transform:uppercase;letter-spacing:0.15em;margin-bottom:6px}.project-title{color:#FFFFFF;font-size:1.15rem;font-weight:800;line-height:1.2;margin-bottom:4px}.project-desc{color:#D1D5DB;font-size:0.85rem;line-height:1.4}.project-loc{color:rgba(255,255,255,0.8);font-size:0.75rem;margin-top:6px}.project-action-hint{color:rgba(255,255,255,0.9);font-size:0.75rem;font-weight:600;margin-top:8px;display:flex;align-items:center;gap:4px}.badge-top-left{position:absolute;top:14px;left:14px;background-color:rgba(17,24,39,0.85);color:#FFFFFF;font-size:0.75rem;font-weight:700;padding:4px 12px;border-radius:9999px;pointer-events:none}.badge-top-right{position:absolute;top:14px;right:14px;background-color:#FFFFFF;color:var(--secondary);font-size:0.75rem;font-weight:800;padding:4px 10px;border-radius:9999px;box-shadow:var(--shadow-sm);pointer-events:none}.team-section{background-color:var(--bg-surface);border-top:1px solid var(--border-color);border-bottom:1px solid var(--border-color)}.team-grid{display:grid;grid-template-columns:1fr;gap:28px}@media (min-width:768px){.team-grid{grid-template-columns:repeat(3,1fr)}}.team-card{background-color:#FFFFFF;border:1px solid var(--border-color);border-radius:20px;padding:36px 28px;box-shadow:var(--shadow-card);display:flex;flex-direction:column;align-items:center;text-align:center;transition:all var(--transition-normal)}.team-card:hover{border-color:var(--primary);box-shadow:var(--shadow-lg);transform:translateY(-4px)}.team-avatar{width:80px;height:80px;border-radius:50%;background-color:var(--primary-light);color:var(--primary);border:2px solid #FECACA;display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:900;margin-bottom:20px}.team-name{font-size:1.25rem;font-weight:800;color:var(--text-main);margin-bottom:4px}.team-role{font-size:0.85rem;font-weight:700;color:var(--primary);text-transform:uppercase;letter-spacing:0.05em;margin-bottom:16px}.team-bio{font-size:0.925rem;color:var(--text-muted);line-height:1.6;margin-bottom:20px;flex-grow:1}.team-skills{display:flex;flex-wrap:wrap;justify-content:center;gap:8px}.team-skill-tag{background-color:var(--bg-surface-subtle);border:1px solid var(--border-color);color:var(--text-main);font-size:0.75rem;font-weight:700;padding:4px 12px;border-radius:9999px}.footer{background-color:#111827;color:#FFFFFF;padding-top:70px;padding-bottom:36px;border-top:4px solid var(--primary)}.footer-grid{display:grid;grid-template-columns:1fr;gap:40px;margin-bottom:56px}@media (min-width:768px){.footer-grid{grid-template-columns:1.2fr 0.8fr 2fr}}.footer-title{font-size:0.875rem;font-weight:800;text-transform:uppercase;letter-spacing:0.15em;color:#F3F4F6;margin-bottom:24px}.footer-brand .brand-name{color:#FFFFFF}.footer-brand .brand-sub{color:#9CA3AF}.footer-text{color:#D1D5DB;font-size:0.925rem;line-height:1.7;margin:18px 0}.footer-links{list-style:none;display:flex;flex-direction:column;gap:12px}.footer-links a{color:#D1D5DB;font-size:0.9rem;font-weight:500;display:inline-flex;align-items:center;gap:8px;transition:color var(--transition-fast)}.footer-links a:hover{color:#FECACA}.contact-details{display:grid;grid-template-columns:1fr;gap:20px}@media (min-width:640px){.contact-details{grid-template-columns:1fr 1fr}}.contact-item{display:flex;align-items:flex-start;gap:12px;color:#D1D5DB;font-size:0.9rem;line-height:1.6}.contact-icon{color:#EF4444;margin-top:3px;flex-shrink:0}.footer-bottom{border-top:1px solid #1F2937;padding-top:32px;display:flex;flex-direction:column;align-items:center;justify-content:space-between;gap:16px;color:#9CA3AF;font-size:0.85rem}@media (min-width:768px){.footer-bottom{flex-direction:row}}.floating-estimate-btn{position:fixed;bottom:24px;right:24px;z-index:90;background-color:var(--primary);color:#FFFFFF;font-weight:800;font-size:0.9rem;padding:16px 24px;border-radius:9999px;box-shadow:0 10px 25px -3px rgba(185,28,28,0.5);display:flex;align-items:center;gap:10px;transition:all var(--transition-normal)}.floating-estimate-btn:hover{background-color:var(--secondary);transform:translateY(-3px) scale(1.03);box-shadow:var(--shadow-xl)}.modal-backdrop{position:fixed;inset:0;z-index:200;background-color:rgba(0,0,0,0.75);display:flex;align-items:center;justify-content:center;padding:20px;opacity:0;pointer-events:none;transition:opacity var(--transition-normal)}.modal-backdrop.active{opacity:1;pointer-events:auto}.modal-window{background-color:#FFFFFF;border-radius:20px;width:100%;max-width:960px;max-height:90vh;overflow:hidden;display:flex;flex-direction:column;box-shadow:0 25px 50px -12px rgba(0,0,0,0.25);transform:scale(0.95);transition:transform var(--transition-normal)}.modal-backdrop.active .modal-window{transform:scale(1)}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:20px 28px;border-bottom:1px solid var(--border-color);background-color:#FFFFFF}.modal-close-btn{width:36px;height:36px;border-radius:50%;background-color:var(--bg-surface-subtle);color:var(--text-main);display:flex;align-items:center;justify-content:center;font-size:1.25rem;font-weight:700;transition:all var(--transition-fast)}.modal-close-btn:hover{background-color:#FEE2E2;color:var(--primary)}.lightbox-body{position:relative;background-color:#0F172A;display:flex;align-items:center;justify-content:center;min-height:350px;max-height:60vh}.lightbox-main-img{max-width:100%;max-height:60vh;object-fit:contain}.lightbox-nav-btn{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;background-color:rgba(255,255,255,0.9);color:var(--secondary);border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-lg);font-size:1.25rem;font-weight:bold;transition:background-color var(--transition-fast)}.lightbox-nav-btn:hover{background-color:#FFFFFF}.lightbox-prev{left:16px}.lightbox-next{right:16px}.lightbox-counter{position:absolute;bottom:16px;right:16px;background-color:rgba(0,0,0,0.7);color:#FFFFFF;font-size:0.75rem;font-weight:800;padding:4px 12px;border-radius:9999px}.lightbox-thumbs{display:flex;gap:10px;padding:16px 28px;background-color:#FFFFFF;overflow-x:auto;border-top:1px solid var(--border-color)}.lightbox-thumb{width:80px;height:56px;border-radius:8px;overflow:hidden;cursor:pointer;border:2px solid transparent;opacity:0.6;flex-shrink:0;transition:all var(--transition-fast)}.lightbox-thumb.active{border-color:var(--primary);opacity:1;box-shadow:var(--shadow-md)}.lightbox-thumb img{width:100%;height:100%;object-fit:cover}.estimator-window{max-width:540px}.estimator-header{background-color:var(--primary);color:#FFFFFF;padding:24px 28px;position:relative}.estimator-header .modal-close-btn{background-color:rgba(255,255,255,0.2);color:#FFFFFF}.estimator-header .modal-close-btn:hover{background-color:rgba(255,255,255,0.4)}.estimator-body{padding:28px;overflow-y:auto}.form-group{margin-bottom:20px}.form-label{display:block;font-size:0.875rem;font-weight:700;color:var(--text-main);margin-bottom:8px}.form-input{width:100%;padding:14px 16px;font-size:1rem;border:1px solid var(--border-color);border-radius:12px;background-color:#FFFFFF;color:var(--text-main);outline:none;transition:border-color var(--transition-fast)}.form-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(185,28,28,0.15)}.radio-card-list{display:flex;flex-direction:column;gap:10px}.radio-card{display:flex;align-items:center;padding:14px 18px;border:1px solid var(--border-color);border-radius:12px;cursor:pointer;font-weight:600;transition:all var(--transition-fast)}.radio-card:hover{border-color:var(--primary);background-color:var(--primary-light)}.radio-card.selected{border-color:var(--primary);background-color:var(--primary-light);color:var(--primary)}.radio-card input{margin-right:12px;accent-color:var(--primary)}.estimator-footer{display:flex;align-items:center;justify-content:space-between;margin-top:28px;padding-top:20px;border-top:1px solid var(--border-color)}