/* os.wholetech.com — shared styles. Adapted from the WholeTech dark system. */
:root{
  --bg:#06080d;--sf:#0d1017;--s2:#131820;--bd:#1e2535;--bd2:#2a3245;
  --tx:#e4e4e7;--dm:#a3a7b3;--mt:#6a6f80;
  --ac:#d97757;--ac-dim:rgba(217,119,87,.08);--ac-bd:rgba(217,119,87,.28);
  --teal:#34d399;--blue:#22d3ee;--purple:#a78bfa;--amber:#fbbf24;--rose:#fb7185;
  --r:12px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,sans-serif;background:var(--bg);color:var(--tx);line-height:1.7;font-size:16px}
a{color:var(--blue);text-decoration:none;transition:.2s}
a:hover{color:var(--ac)}
h1,h2,h3,h4{font-family:'Space Grotesk',sans-serif;line-height:1.2;letter-spacing:-.01em}
code,kbd,pre,.mono{font-family:'JetBrains Mono',ui-monospace,monospace}

/* top bar */
.top{position:sticky;top:0;z-index:50;background:rgba(6,8,13,.92);backdrop-filter:blur(14px);border-bottom:1px solid var(--bd);padding:14px 24px}
.top .row{max-width:1180px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:14px}
.brand{display:flex;align-items:center;gap:10px;font-family:'Space Grotesk',sans-serif;font-weight:700;color:var(--tx);font-size:.95rem}
.brand .logo{width:24px;height:24px;border-radius:6px;background:linear-gradient(135deg,var(--ac),var(--amber));display:grid;place-items:center;color:var(--bg);font-size:.8rem;font-weight:700}
.brand .pill{display:inline-flex;align-items:center;gap:6px;background:var(--ac-dim);border:1px solid var(--ac-bd);color:var(--ac);font-size:.7rem;font-weight:700;text-decoration:none;padding:4px 10px;border-radius:6px;letter-spacing:.5px;margin-left:6px}
.nav{display:flex;gap:6px;flex-wrap:wrap;font-size:.84rem}
.nav a{color:var(--dm);padding:5px 11px;border-radius:6px;font-family:'JetBrains Mono',monospace}
.nav a:hover{color:var(--ac);background:var(--ac-dim)}
.nav a.active{color:var(--ac);background:var(--ac-dim);border:1px solid var(--ac-bd)}

/* hero */
.hero{padding:80px 24px 60px;border-bottom:1px solid var(--bd);background:radial-gradient(ellipse 80% 60% at 30% 0%,rgba(217,119,87,.10),transparent 70%),radial-gradient(ellipse 60% 50% at 80% 0%,rgba(34,211,238,.05),transparent 70%);position:relative;overflow:hidden}
.hero .w{max-width:1180px;margin:0 auto;position:relative;z-index:2}
.kicker{display:inline-block;font-size:.7rem;letter-spacing:.22em;text-transform:uppercase;color:var(--ac);background:var(--ac-dim);border:1px solid var(--ac-bd);padding:5px 14px;border-radius:999px;margin-bottom:22px}
h1{font-size:clamp(2.4rem,6vw,4.4rem);font-weight:700;margin-bottom:20px;letter-spacing:-.03em;max-width:980px}
h1 .ac{color:var(--ac)}
.lead{font-size:clamp(1.05rem,1.6vw,1.3rem);color:var(--dm);max-width:760px;margin-bottom:10px;line-height:1.55}
.subtitle{font-size:.95rem;color:var(--mt);font-style:italic;max-width:720px;margin-bottom:24px}
.meta{display:flex;flex-wrap:wrap;gap:22px;margin-top:8px;font-size:.82rem;color:var(--mt);font-family:'JetBrains Mono',monospace}
.meta strong{color:var(--tx);font-weight:600}
.dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--ac);box-shadow:0 0 8px var(--ac);margin-right:8px;vertical-align:middle}

/* sections */
.section{padding:60px 24px;border-bottom:1px solid var(--bd)}
.section .w{max-width:1180px;margin:0 auto}
.section.narrow .w{max-width:860px}
.section h2{font-size:clamp(1.45rem,2.6vw,2rem);font-weight:700;margin-bottom:14px}
.section h2 em{font-style:normal;background:linear-gradient(90deg,var(--ac),var(--amber));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.section .intro{color:var(--dm);max-width:780px;margin-bottom:32px;font-size:1.02rem}
.section .intro a{color:var(--ac)}
.eyebrow{font-family:'JetBrains Mono',monospace;font-size:.72rem;color:var(--ac);letter-spacing:.18em;text-transform:uppercase;margin-bottom:8px;display:flex;align-items:center;gap:8px}
.eyebrow::before{content:"";display:inline-block;width:24px;height:1px;background:var(--ac)}

/* grids + cards */
.grid{display:grid;gap:18px}
.grid-2{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}
.grid-3{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.grid-4{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.card{background:var(--sf);border:1px solid var(--bd);border-radius:var(--r);padding:26px 28px;transition:.2s;display:flex;flex-direction:column;gap:10px;text-decoration:none;color:inherit;position:relative;overflow:hidden}
.card:hover{border-color:var(--ac-bd);transform:translateY(-2px);background:var(--s2)}
.card .ic{font-size:1.8rem;line-height:1}
.card .num{font-family:'JetBrains Mono',monospace;font-size:.72rem;color:var(--mt);letter-spacing:.12em;margin-bottom:4px}
.card h3{font-size:1.18rem;color:var(--tx);font-weight:600;margin-bottom:2px}
.card h3 .arrow{color:var(--ac);transition:.2s;display:inline-block;margin-left:6px}
.card:hover h3 .arrow{transform:translateX(4px)}
.card p{color:var(--dm);font-size:.92rem;line-height:1.6;margin:0}
.card .tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.card .tag{font-family:'JetBrains Mono',monospace;font-size:.68rem;color:var(--mt);background:var(--s2);border:1px solid var(--bd);padding:3px 8px;border-radius:4px;letter-spacing:.04em}

/* step blocks (guide spine) */
.step{background:var(--sf);border:1px solid var(--bd);border-radius:var(--r);padding:28px 30px;margin-bottom:22px;position:relative}
.step .head{display:flex;align-items:baseline;gap:14px;margin-bottom:8px;flex-wrap:wrap}
.step .n{font-family:'JetBrains Mono',monospace;font-weight:700;color:var(--ac);font-size:1.1rem;background:var(--ac-dim);border:1px solid var(--ac-bd);width:38px;height:38px;border-radius:9px;display:grid;place-items:center;flex:0 0 auto}
.step .head h3{font-size:1.3rem;font-weight:600}
.step .what{color:var(--dm);font-size:.96rem;margin:6px 0 16px}
.step .why{color:var(--mt);font-size:.9rem;font-style:italic;margin-bottom:14px}
.label{font-family:'JetBrains Mono',monospace;font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--mt);margin:18px 0 8px;display:block}

/* code blocks */
pre{background:#04060a;border:1px solid var(--bd2);border-radius:9px;padding:16px 18px;overflow-x:auto;font-size:.86rem;line-height:1.6;margin:6px 0 4px;color:#cdd3df}
pre .c{color:#5b6679}/* comment */
pre .p{color:var(--ac)}/* prompt char */
code:not(pre code){background:var(--s2);border:1px solid var(--bd);border-radius:5px;padding:1px 6px;font-size:.84em;color:var(--amber)}
.copywrap{position:relative}
.copywrap button{position:absolute;top:8px;right:8px;background:var(--s2);border:1px solid var(--bd2);color:var(--dm);font-family:'JetBrains Mono',monospace;font-size:.68rem;padding:4px 9px;border-radius:5px;cursor:pointer;transition:.15s;opacity:.6}
.copywrap:hover button{opacity:1}
.copywrap button:hover{color:var(--ac);border-color:var(--ac-bd)}
.copywrap button.ok{color:var(--teal);border-color:var(--teal)}

/* verify / note / warn callouts */
.note,.verify,.warn{border-radius:9px;padding:14px 18px;margin:14px 0;font-size:.92rem;line-height:1.6;border:1px solid}
.verify{background:rgba(52,211,153,.06);border-color:rgba(52,211,153,.28);color:#bdf0da}
.verify b{color:var(--teal)}
.note{background:var(--s2);border-color:var(--bd2);color:var(--dm)}
.note b{color:var(--tx)}
.warn{background:rgba(251,113,133,.06);border-color:rgba(251,113,133,.28);color:#f6c9d0}
.warn b{color:var(--rose)}
.callout-ic{font-style:normal;margin-right:6px}

/* tables */
table{width:100%;border-collapse:collapse;margin:10px 0;font-size:.9rem}
th,td{text-align:left;padding:10px 14px;border-bottom:1px solid var(--bd)}
th{font-family:'JetBrains Mono',monospace;font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--mt);font-weight:600}
td{color:var(--dm)}
td code{white-space:nowrap}

/* lists */
.section ul,.step ul{margin:6px 0 6px 4px;padding-left:20px}
.section li,.step li{margin:5px 0;color:var(--dm)}
.section li::marker{color:var(--ac)}

/* table of contents pills */
.toc{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 4px}
.toc a{font-family:'JetBrains Mono',monospace;font-size:.78rem;color:var(--dm);background:var(--sf);border:1px solid var(--bd);padding:6px 12px;border-radius:7px}
.toc a:hover{color:var(--ac);border-color:var(--ac-bd)}

/* breadcrumb */
.crumb{font-family:'JetBrains Mono',monospace;font-size:.78rem;color:var(--mt);margin-bottom:18px}
.crumb a{color:var(--dm)}
.crumb a:hover{color:var(--ac)}

/* device-nav strip on guide pages */
.devstrip{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.devstrip a{font-family:'JetBrains Mono',monospace;font-size:.78rem;color:var(--dm);background:var(--sf);border:1px solid var(--bd);padding:6px 13px;border-radius:7px;display:inline-flex;gap:7px;align-items:center}
.devstrip a:hover{color:var(--ac);border-color:var(--ac-bd)}
.devstrip a.active{color:var(--ac);background:var(--ac-dim);border-color:var(--ac-bd)}

/* footer */
.foot{padding:48px 24px;text-align:center;color:var(--mt);font-size:.85rem}
.foot .w{max-width:1180px;margin:0 auto}
.foot a{color:var(--dm)}
.foot a:hover{color:var(--ac)}
.foot .links{display:flex;gap:18px;justify-content:center;flex-wrap:wrap;margin-bottom:14px;font-family:'JetBrains Mono',monospace;font-size:.8rem}

@media print{
  body{background:#fff;color:#111;font-size:12px}
  .top,.foot,.toc,.copywrap button,.devstrip{display:none}
  pre{background:#f4f4f4;color:#111;border-color:#ccc}
  .step,.card{break-inside:avoid;border-color:#ccc}
  a{color:#111}
}
@media (max-width:600px){
  .section,.hero{padding-left:18px;padding-right:18px}
  .step{padding:20px 18px}
}