:root{--bg:#0f0f0f;--card:#1a1a1a;--fg:#fff;--muted:#a0a0a0;--accent:#4f46e5;--accent2:#6366f1}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Arial,sans-serif;background:var(--bg);color:var(--fg);line-height:1.6}
.container{max-width:1100px;margin:0 auto;padding:0 1.5rem}
.header{text-align:center;padding:4rem 1rem 2rem}
h1{font-size:clamp(2rem,5vw,3rem);font-weight:700;background:linear-gradient(135deg,var(--accent),var(--accent2));-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:.5rem}
.subtitle{color:var(--muted);font-size:1.1rem}
.grid-container{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem;padding:2rem 0 4rem}
.card{background:var(--card);border:1px solid #2a2a2a;border-radius:14px;padding:2rem;display:flex;flex-direction:column;gap:1rem;transition:.25s ease;position:relative;overflow:hidden}
.card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--accent),var(--accent2));opacity:0;transition:.25s}
.card:hover{border-color:var(--accent);transform:translateY(-4px);box-shadow:0 12px 24px rgba(0,0,0,.4)}
.card:hover::before{opacity:1}
.card-icon{font-size:2rem;line-height:1}
.card h2{font-size:1.4rem;font-weight:600}
.card p{color:var(--muted);font-size:.95rem;flex:1}
.btn{display:inline-block;background:var(--accent);color:#fff;text-decoration:none;padding:.7rem 1.4rem;border-radius:8px;font-weight:500;transition:.2s;margin-top:.5rem;align-self:flex-start}
.btn:hover{background:var(--accent2)}
.footer{text-align:center;padding:2rem;color:var(--muted);font-size:.85rem;border-top:1px solid #1f1f1f}
@media(max-width:600px){.grid-container{grid-template-columns:1fr}.header{padding:2.5rem 1rem 1.5rem}}
@media(prefers-color-scheme:light){:root{--bg:#f5f5f5;--card:#fff;--fg:#111;--muted:#555}.card{box-shadow:0 2px 8px rgba(0,0,0,.06)}.footer{border-top-color:#e0e0e0}}