:root{
  color-scheme:dark;
  --bg:#0b0b0e; --ink:#e8e6df; --muted:#bcb7a7; --line:#2a2c38;
  --purple:#b8a8ff; --purple-bg:#7b6cff2a; --purple-line:#7b6cff66;
  --blue:#8ad3ff;   --blue-bg:#6db8ff24;  --blue-line:#6db8ff66;
  --orange:#ffc56b; --orange-bg:#ffbb5526;--orange-line:#ffbb5566;
  --yellow:#ffd95e; --yellow-bg:#ffd94d26;--yellow-line:#ffd94d66;
  --brand:#8a7eff;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.55 Inter,system-ui,Segoe UI,Roboto,sans-serif}
a{color:#cdb8ff;text-decoration:none} a:hover{text-decoration:underline}
header,main,footer{max-width:1100px;margin:0 auto;padding:1.5rem}

nav{display:flex;gap:18px;align-items:center;justify-content:flex-end}
.brand{margin-right:auto;font-weight:700;font-size:32px;font-style:italic;color:#a399af}

.hero{margin-top:1.25rem}
h1{font-size:clamp(28px,5vw,28px);margin:.25rem 0 .6rem}
.lead{color:var(--muted);font-size:1.1rem;margin:0 0 1.25rem}
.btn,.ghost{display:inline-block;padding:.8rem 1.1rem;border-radius:12px;font-weight:600;border:1px solid var(--line)}
.btn{background:var(--brand);color:#fff;border-color:#9a8fff} .btn:hover{filter:brightness(1.08)}
.ghost{color:var(--ink)} .ghost:hover{background:#161722}

.panel{border:1px solid var(--line);border-radius:18px;padding:1.4rem;margin:1.4rem 0;background:#111218}
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.grid article{background:#151622;border:1px solid var(--line);border-radius:14px;padding:14px}

h2{margin:.2rem 0 1rem;font-size:1.4rem}
h3{margin:.2rem 0 .4rem;font-size:1.05rem}
h4{margin:.2rem 0 .4rem;font-size:1rem}

.steps{margin:.4rem 0 0;padding-left:1.1rem}
.steps li{margin:.35rem 0}

.sec-purple{background:var(--purple-bg);border-color:var(--purple-line)}
.sec-purple h1,.sec-purple h2,.sec-purple h3{color:var(--purple)}
.sec-purple .grid article{background:#141427;border-color:var(--purple-line)}

.sec-blue{background:var(--blue-bg);border-color:var(--blue-line)}
.sec-blue h2,.sec-blue h3{color:var(--blue)}
.sec-blue .grid article{background:#111a23;border-color:var(--blue-line)}

.sec-orange{background:var(--orange-bg);border-color:var(--orange-line)}
.sec-orange h2,.sec-orange h3{color:var(--orange)}
.sec-orange .grid article{background:#1b1711;border-color:var(--orange-line)}

.sec-yellow{background:var(--yellow-bg);border-color:var(--yellow-line)}
.sec-yellow h2,.sec-yellow h3{color:var(--yellow)}
.sec-yellow .grid article{background:#191a12;border-color:var(--yellow-line)}

footer{text-align:center;border-top:1px solid var(--line);margin-top:2rem;color:var(--muted)}
.small{font-size:.9rem}