.portfolio{text-align:center}.portfolio > h2{margin:34px 0 12px}.portfolio-intro{margin:0 auto 35px;max-width:600px;color:#aaa;font-size:14px}.portfolio-tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:5px;max-width:830px;margin:0 auto 50px;padding:7px;border:1px solid var(--line);border-radius:999px;background:#151516}.portfolio-tab{min-height:48px;border:0;border-radius:999px;background:transparent;color:#a9a9a9;cursor:pointer;font:500 13px 'Space Grotesk',sans-serif;transition:background .25s,color .25s,transform .25s}.portfolio-tab:hover{color:var(--cream)}.portfolio-tab.active{background:#3a3a3c;color:var(--cream);box-shadow:0 3px 12px #0004}.portfolio-panel{text-align:left;animation:portfolio-panel-in .35s ease both}.portfolio-panel[hidden]{display:none}.portfolio-block{padding-top:30px;border-top:1px solid var(--line)}.portfolio-block-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:30px;font:10px 'DM Mono',monospace;letter-spacing:.1em}.portfolio-block-heading p{margin:0;color:var(--accent)}.portfolio-block-heading span{color:var(--muted);font-size:9px}.certificate-list{display:grid;border-top:1px solid var(--line)}.certificate-card{display:grid;grid-template-columns:80px 1fr auto;align-items:center;gap:24px;padding:25px 0;border-bottom:1px solid var(--line);transition:padding .25s,background .25s}.certificate-card:hover{padding-inline:18px;background:rgba(185,255,76,.06)}.certificate-number,.certificate-year,.certificate-card p,.tech-card span{font:10px 'DM Mono',monospace;color:var(--accent);letter-spacing:.08em}.certificate-card p{margin:0 0 7px;color:var(--muted);font-size:9px}.certificate-card h3{margin:0;font-size:20px;font-weight:500}.certificate-year{color:var(--cream)}.tech-stack-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.tech-card{min-height:180px;padding:22px;border:1px solid var(--line);background:linear-gradient(145deg,#141416,#0d0d0e);transition:transform .25s,border-color .25s}.tech-card:hover{transform:translateY(-7px);border-color:var(--accent)}.tech-card h3{margin:45px 0 12px;font-size:24px;font-weight:500}.tech-card p{margin:0;color:#aaa;font-size:13px;line-height:1.6}@keyframes portfolio-panel-in{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}@media(max-width:700px){.portfolio > h2{margin-bottom:12px}.portfolio-intro{font-size:13px}.portfolio-tabs{margin-bottom:35px;padding:4px}.portfolio-tab{min-height:44px;font-size:11px}.portfolio-block-heading{align-items:flex-start;gap:15px;line-height:1.5}.portfolio-block-heading span{text-align:right}.certificate-card{grid-template-columns:38px 1fr;gap:14px}.certificate-card h3{font-size:16px}.certificate-year{grid-column:2}.tech-stack-grid{grid-template-columns:1fr}.tech-card{min-height:145px}.tech-card h3{margin-top:30px}}