*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}:root{--cream:#F9F6F1;--white:#FFF;--ink:#1A1A1A;--ink-soft:#3A3A3A;--ink-muted:#6A6A6A;--accent:#1B4FD8;--accent-light:#E8EEFB;--accent-soft:#3B6FF0;--border:#D2CDC7;--gold:#B8860B}html{scroll-behavior:smooth}body{font-family:'DM Sans',sans-serif;background-color:var(--cream);color:var(--ink);line-height:1.6;overflow-x:hidden;padding-top:64px;display:flex;flex-direction:column;min-height:100vh}a,button,.menu-toggle,.close-btn{-webkit-tap-highlight-color:#fff0}.menu-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:5px;background:none;border:none}.menu-toggle span{display:block;width:24px;height:2px;background-color:var(--ink)}.close-btn{font-size:2rem;color:var(--ink-soft);cursor:pointer;line-height:1;background:none;border:none;padding:0}nav{position:fixed;top:0;left:0;right:0;z-index:100;background:rgb(249 246 241 / .95);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);padding:0 5%;display:flex;align-items:center;justify-content:space-between;height:64px;transition:opacity 0.4s ease,transform 0.4s ease;opacity:1;transform:translateY(0)}nav.nav-hidden{opacity:0;transform:translateY(-10px);pointer-events:none}.nav-logo{font-family:'DM Serif Display',serif;font-size:1.1rem;color:var(--ink);text-decoration:none;font-weight:700;transition:transform 0.15s cubic-bezier(.4,0,.2,1),opacity 0.15s ease}.nav-logo:active{transform:scale(.96);opacity:.75}.nav-overlay{display:flex;align-items:center}.overlay-links{list-style:none;display:flex;flex-direction:row;gap:2rem}.overlay-links a{text-decoration:none;font-size:.875rem;font-weight:500;color:var(--ink-soft);letter-spacing:.03em;transition:color 0.2s}.overlay-links a:hover{color:var(--accent)}.overlay-header{display:none}.certificates-page{padding-top:40px;flex-grow:1}.section-inner{max-width:1100px;margin:0 auto;padding:0 5%}.back-btn-wrap{margin-bottom:2rem}.back-btn{display:inline-flex;align-items:center;gap:.5rem;text-decoration:none;color:var(--accent);font-weight:600;font-size:.95rem;transition:transform 0.15s ease}.back-btn:active{transform:scale(.96)}.section-label{font-size:.75rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin-bottom:.6rem}.section-title{font-family:'DM Serif Display',serif;font-size:clamp(1.9rem,3.5vw,2.6rem);color:var(--ink);line-height:1.15}.divider{width:48px;height:3px;background:var(--accent);margin:1rem 0 2.5rem;border-radius:2px}.cert-buttons-wrapper{display:flex;flex-wrap:wrap;gap:1rem;margin-bottom:3rem}.cert-btn{display:inline-flex;align-items:center;justify-content:center;padding:.6rem 1.2rem;font-family:'DM Sans',sans-serif;font-size:.85rem;font-weight:600;text-decoration:none;border-radius:6px;transition:all 0.2s ease;cursor:pointer;white-space:nowrap}.cert-btn.btn-secondary{background-color:#fff0;color:var(--accent);border:2px solid var(--accent)}.cert-btn.btn-secondary.active-filter,.cert-btn.btn-secondary:hover{background-color:var(--accent);color:var(--white)}.cert-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.75rem}.project-card{border:1px solid var(--border);border-radius:14px;background:var(--white);box-shadow:0 4px 12px rgb(0 0 0 / .02);display:flex;flex-direction:column;justify-content:space-between;overflow:hidden;transition:box-shadow 0.25s,transform 0.25s}.project-card:hover{box-shadow:0 10px 36px rgb(0 0 0 / .1);transform:translateY(-4px)}.project-img-wrap{width:100%;aspect-ratio:16/9;background:#EAEAEA;overflow:hidden;border-bottom:1px solid var(--border)}.project-img-wrap img{width:100%;height:100%;object-fit:cover;display:block;transition:transform 0.4s ease}.project-card:hover .project-img-wrap img{transform:scale(1.03)}.project-info{padding:1.5rem;display:flex;flex-direction:column;justify-content:space-between;flex-grow:1}.project-badge{display:inline-block;font-size:.72rem;font-weight:700 !important;letter-spacing:.08em;text-transform:uppercase;padding:.25rem .75rem;border-radius:20px;margin-bottom:1rem;align-self:flex-start}.badge-ai{background-color:#E0F2FE !important;color:#0369A1 !important}.badge-cisco{background-color:#FEF3C7 !important;color:#B45309 !important}.badge-linux{background-color:#DCFCE7 !important;color:#15803D !important}.badge-mikrotik{background-color:#FEE2E2 !important;color:#B91C1C !important}.badge-windows{background-color:#EDE9FE !important;color:#6D28D9 !important}.badge-website{background-color:#E0E7FF !important;color:#3730A3 !important}.badge-default{background-color:#E5E7EB !important;color:#374151 !important}.project-title{font-weight:600;font-size:1.1rem;color:var(--ink);margin-bottom:.5rem}.project-desc{font-size:.88rem;color:var(--ink-soft) !important;line-height:1.6;margin-bottom:1.5rem;flex-grow:1}.project-link{display:inline-flex;align-items:center;gap:.4rem;padding:.5rem 1rem;background-color:#fff0;color:var(--accent);border:1.5px solid var(--accent);border-radius:4px;font-size:.85rem;font-weight:600;text-decoration:none;cursor:pointer;align-self:flex-start;transition:all 0.2s}.project-link:hover{background-color:var(--accent);color:var(--white)}footer{text-align:center;padding:2rem;margin-top:auto;font-size:.82rem;color:var(--ink-muted) !important;border-top:1px solid var(--border);background:var(--white)}@media (min-width:769px){.cert-grid{grid-template-columns:repeat(2,1fr);gap:2rem}}@media (max-width:768px){section{padding:60px 5%}.menu-toggle{display:flex}.nav-overlay{position:fixed;top:0;right:-100%;width:190px;height:100vh;background:var(--white);box-shadow:-5px 0 30px rgb(0 0 0 / .05);z-index:200;padding:16px 20px;flex-direction:column;justify-content:flex-start;align-items:flex-start;gap:1.2rem;transition:right 0.4s cubic-bezier(.16,1,.3,1)}.nav-overlay.open{right:0}.overlay-header{display:flex;align-items:center;justify-content:space-between;width:100%;border-bottom:1px solid var(--border);padding-bottom:.5rem}.close-btn{font-size:2rem;color:var(--ink-soft);cursor:pointer;line-height:1}.overlay-title{display:block;font-size:.85rem;font-weight:600;letter-spacing:.05em;text-transform:uppercase;color:var(--ink-soft) !important}.overlay-links{flex-direction:column;gap:1rem;align-items:flex-start;width:100%}.overlay-links a{font-size:1.05rem;width:100%}}@media (max-width:480px){section{padding:40px 16px}.section-title{font-size:1.6rem}}.project-actions{display:flex;justify-content:space-between;align-items:center;margin-top:0.5rem;gap:1rem}.project-share{background:none;border:1.5px solid var(--border);border-radius:4px;cursor:pointer;display:inline-flex;align-items:center;gap:0.4rem;padding:0.5rem 0.8rem;font-size:0.85rem;font-weight:600;color:var(--ink-muted);transition:all 0.2s;background-color:transparent}.project-share:hover{background-color:var(--cream);color:var(--accent);border-color:var(--accent)}.project-share svg{width:16px;height:16px;stroke:currentColor}@media (max-width:480px){.project-actions{flex-direction:column;gap:0.75rem}.project-link,.project-share{width:100%;justify-content:center}}