.expertise{background:var(--bg-primary)}.expertise-heading{font-size:clamp(2rem,4vw + .5rem,3rem);font-weight:700;color:var(--text-primary)}.expertise-heading-accent{font-family:var(--font-accent);font-style:italic;font-weight:400;font-size:1.08em;color:var(--accent-primary);text-shadow:0 0 28px rgba(142,255,168,.3)}.expertise-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.expertise-card{background:#0d110e;border:1px solid rgba(156,163,175,.1);border-radius:20px;padding:36px;display:flex;flex-direction:column;gap:0;position:relative;overflow:hidden;transition:background .35s ease,border-color .35s ease,box-shadow .35s ease;cursor:default}.expertise-card--wide{grid-column:span 2}.expertise-card:hover{background:#121614;border-color:#8effa84d;box-shadow:0 0 32px #8effa80f}.expertise-icon{position:relative;width:48px;height:48px;margin-bottom:24px;border-radius:12px;display:grid;place-items:center;overflow:hidden;color:#c9d1d9;background-color:#0c100e;background-image:radial-gradient(120% 120% at 50% -10%,rgba(142,255,168,.07),transparent 70%);border:1px solid rgba(142,255,168,.18);transition:border-color .4s cubic-bezier(.16,1,.3,1),box-shadow .4s cubic-bezier(.16,1,.3,1)}.expertise-card:hover .expertise-icon{border-color:#8effa873;box-shadow:0 0 18px #8effa826,inset 0 0 14px #8effa80a}.expertise-icon svg{width:20px;height:20px;overflow:visible}.expertise-icon-idx{position:absolute;top:4px;left:6px;font-family:var(--font-mono);font-size:8px;letter-spacing:.04em;color:#8effa880}.ico-needle{transform-box:fill-box;transform-origin:center;transition:transform .7s cubic-bezier(.16,1,.3,1)}.expertise-card:hover .ico-needle{transform:rotate(140deg)}.ico-lt,.ico-gt{transform-box:fill-box;transform-origin:center;transition:transform .45s cubic-bezier(.16,1,.3,1)}.expertise-card:hover .ico-lt{transform:translate(-2.5px)}.expertise-card:hover .ico-gt{transform:translate(2.5px)}.ico-core{transform-box:fill-box;transform-origin:center}.expertise-card:hover .ico-core{animation:ico-pulse 1.2s ease-in-out infinite}@keyframes ico-pulse{0%,to{transform:scale(1);opacity:.65}50%{transform:scale(1.35);opacity:1}}.ico-scan{opacity:0}.expertise-card:hover .ico-scan{animation:ico-scan 1.5s ease-in-out infinite}@keyframes ico-scan{0%{transform:translateY(-4.5px);opacity:0}25%{opacity:1}75%{opacity:1}to{transform:translateY(4.5px);opacity:0}}.expertise-tag{font-size:.75rem;font-weight:500;letter-spacing:.08em;text-transform:uppercase;color:#9ca3af;opacity:.65;margin-bottom:10px;transition:color .35s ease}.expertise-card:hover .expertise-tag{color:var(--accent-primary);opacity:.9}.expertise-title{font-family:var(--font-main);font-size:1.2rem;font-weight:600;color:#f3f4f6;margin-bottom:14px;line-height:1.3}.expertise-desc{font-family:var(--font-main);font-weight:300;font-size:.95rem;color:#9ca3af;line-height:1.65;flex:1;margin-bottom:24px}.expertise-pills{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto}.expertise-pill{font-size:.75rem;font-weight:500;color:#9ca3af;background:#9ca3af14;border:1px solid rgba(156,163,175,.12);border-radius:6px;padding:4px 10px;transition:color .3s ease,border-color .3s ease,background .3s ease}.expertise-card:hover .expertise-pill{color:#8effa8;border-color:#8effa833;background:#8effa80d}@media(max-width:900px){.expertise-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:600px){.expertise-grid{grid-template-columns:1fr}.expertise-card--wide{grid-column:span 1}.expertise-card{padding:28px 24px}}