*{box-sizing:border-box}body{font-family:Inter,Arial,Helvetica,sans-serif;margin:0;background:#0f1724;color:#e6eef8}a{color:inherit}
.wrap{max-width:1100px;margin:0 auto;padding:24px}
.site-header{background:linear-gradient(90deg,#0b1220,#091224);padding:22px 0;border-bottom:1px solid rgba(255,255,255,0.03)}
.site-header h1{margin:0;font-size:28px}
.tagline{margin:6px 0 0;color:#9fb0d9}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px;margin-top:18px}
.card{background:linear-gradient(180deg,rgba(255,255,255,0.02),rgba(255,255,255,0.01));padding:16px;border-radius:10px;border:1px solid rgba(255,255,255,0.03)}
.card h2{margin:0 0 6px;font-size:18px}
.demo{margin-top:8px}
.row{display:flex;gap:8px;align-items:center;margin-top:8px}
input[type=text],input[type=range],input[type=password],textarea,input[readonly]{flex:1;padding:8px;border-radius:6px;border:1px solid rgba(255,255,255,0.06);background:transparent;color:inherit}
textarea{min-height:80px;font-family:monospace;font-size:13px;padding:8px}
button{background:rgba(255,255,255,0.05);border:1px solid rgba(255,255,255,0.04);padding:8px 10px;border-radius:8px;cursor:pointer}
button:hover{transform:translateY(-1px)}
.output{background:rgba(0,0,0,0.2);padding:8px;border-radius:6px;white-space:pre-wrap;max-height:180px;overflow:auto}
meter{width:100%;height:10px;margin-top:8px;background:transparent}
.gradPreview{height:60px;border-radius:8px;border:1px solid rgba(255,255,255,0.03);margin-top:8px}
.help{margin-top:18px;color:#9fb0d9;padding:12px;border-radius:8px;background:linear-gradient(90deg,transparent,rgba(255,255,255,0.01))}
@media (max-width:600px){.wrap{padding:12px}.site-header h1{font-size:22px}}