/* Blog styles — shares design tokens with the portfolio (index.html) */
:root {
  --bg:#05070f; --bg-alt:#080b16; --surface:rgba(255,255,255,0.028); --surface-solid:#0b0f1c;
  --border:rgba(255,255,255,0.08); --border-hi:rgba(255,255,255,0.15);
  --text:#f1f5f9; --muted:#94a3b8; --faint:#64748b;
  --indigo:#6366f1; --indigo-lt:#818cf8; --violet:#8b5cf6;
  --grad:linear-gradient(135deg,#6366f1 0%,#8b5cf6 100%);
  --code-bg:#0b0f1c; --shadow:0 24px 60px rgba(0,0,0,.5); --glow:0 10px 40px rgba(99,102,241,.35);
  --mono:'JetBrains Mono', ui-monospace, monospace;
  --pad:clamp(16px, 5vw, 56px);
}
[data-theme="light"] {
  --bg:#f5f6fb; --bg-alt:#ffffff; --surface:rgba(255,255,255,0.75); --surface-solid:#ffffff;
  --border:rgba(15,23,42,0.09); --border-hi:rgba(99,102,241,0.35);
  --text:#0b1120; --muted:#5b6579; --faint:#94a3b8;
  --code-bg:#f0f1f8; --shadow:0 20px 50px rgba(15,23,42,.10); --glow:0 10px 40px rgba(99,102,241,.28);
}

* { margin:0; padding:0; box-sizing:border-box; }
html { -webkit-text-size-adjust:100%; }
body { font-family:'Jost','Segoe UI',sans-serif; background:var(--bg); color:var(--text);
  line-height:1.6; -webkit-font-smoothing:antialiased; overflow-x:hidden; }
a { color:inherit; text-decoration:none; }
img { display:block; max-width:100%; }
::selection { background:rgba(99,102,241,.35); color:#fff; }

.wrap { width:min(1180px,100%); margin-inline:auto; padding-inline:var(--pad); }
.narrow { width:min(760px,100%); margin-inline:auto; padding-inline:var(--pad); }

.orb { position:fixed; border-radius:50%; filter:blur(120px); pointer-events:none; z-index:-1;
  width:520px; height:520px; background:rgba(99,102,241,.14); top:-180px; left:-160px; }
[data-theme="light"] .orb { opacity:.55; }

/* Nav */
.bnav { position:sticky; top:0; z-index:50; padding:14px 0; border-bottom:1px solid var(--border);
  background:color-mix(in srgb, var(--bg) 80%, transparent); backdrop-filter:blur(18px); -webkit-backdrop-filter:blur(18px); }
.bnav-in { display:flex; align-items:center; justify-content:space-between; gap:16px; }
.brand { display:flex; align-items:center; gap:10px; }
.brand-badge { width:34px; height:34px; border-radius:10px; background:var(--grad); display:grid; place-items:center;
  color:#fff; font-weight:900; font-size:12.5px; box-shadow:var(--glow); }
.brand-name { font-size:18px; font-weight:900; letter-spacing:-.03em; line-height:1; }
.brand-name em { font-style:normal; background:var(--grad); -webkit-background-clip:text; background-clip:text; color:transparent; }
.bnav-links { display:flex; align-items:center; gap:6px; }
.bnav-links a { padding:8px 14px; border-radius:999px; font-size:14px; font-weight:600; color:var(--muted); transition:color .2s; }
.bnav-links a:hover, .bnav-links a.on { color:var(--text); }
.icon-btn { width:36px; height:36px; border-radius:999px; display:grid; place-items:center; border:1px solid var(--border);
  background:var(--surface); color:var(--muted); cursor:pointer; }
.icon-btn:hover { color:var(--indigo-lt); border-color:var(--border-hi); }
.icon-btn svg { width:16px; height:16px; }
#sun { display:none; } [data-theme="light"] #sun { display:block; } [data-theme="light"] #moon { display:none; }
@media (max-width:520px) { .bnav-links a.hide-sm { display:none; } .brand-name { display:none; } }

/* Eyebrow + headings */
.eyebrow { display:inline-block; font-family:var(--mono); font-size:11px; font-weight:700; letter-spacing:.2em;
  text-transform:uppercase; color:var(--indigo-lt); }
.page-head { padding:72px 0 40px; }
.page-head h1 { font-size:clamp(36px,6vw,64px); font-weight:900; font-style:italic; text-transform:uppercase;
  letter-spacing:-.04em; line-height:.95; margin-top:14px; }
.page-head p { color:var(--muted); font-size:17px; max-width:620px; margin-top:16px; }

/* Index cards */
.grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(300px,1fr)); gap:20px; padding-bottom:90px; }
.card { display:flex; flex-direction:column; padding:28px 26px; border-radius:22px; background:var(--surface);
  border:1px solid var(--border); transition:transform .35s cubic-bezier(.22,1,.36,1), border-color .35s, box-shadow .35s; }
.card:hover { transform:translateY(-6px); border-color:var(--border-hi); box-shadow:var(--shadow); }
.card .cat { font-family:var(--mono); font-size:10px; font-weight:700; letter-spacing:.18em; text-transform:uppercase; color:var(--indigo-lt); }
.card h2 { font-size:20px; font-weight:800; letter-spacing:-.02em; line-height:1.35; margin:14px 0 10px; }
.card p { color:var(--muted); font-size:14.5px; line-height:1.7; flex:1; }
.card .meta { font-family:var(--mono); font-size:11px; letter-spacing:.08em; text-transform:uppercase; color:var(--faint);
  margin-top:22px; padding-top:16px; border-top:1px solid var(--border); display:flex; justify-content:space-between; gap:10px; }
.card .meta b { color:var(--indigo-lt); font-weight:700; }

/* Article */
.post-head { padding:64px 0 34px; border-bottom:1px solid var(--border); margin-bottom:40px; }
.back { display:inline-flex; align-items:center; gap:6px; font-size:14px; font-weight:600; color:var(--muted); margin-bottom:28px; }
.back:hover { color:var(--indigo-lt); }
.post-head h1 { font-size:clamp(30px,5vw,48px); font-weight:900; letter-spacing:-.035em; line-height:1.12; margin-top:14px; }
.post-head .lede { color:var(--muted); font-size:18px; line-height:1.65; margin-top:18px; }
.byline { display:flex; align-items:center; gap:12px; margin-top:28px; flex-wrap:wrap; }
.byline img { width:42px; height:42px; border-radius:50%; object-fit:cover; object-position:top; border:2px solid var(--border-hi); }
.byline .who { font-weight:700; font-size:15px; line-height:1.3; }
.byline .when { font-family:var(--mono); font-size:11.5px; color:var(--faint); letter-spacing:.04em; }

.prose { font-size:17.5px; line-height:1.8; color:color-mix(in srgb, var(--text) 88%, var(--muted)); padding-bottom:40px; overflow-wrap:break-word; }
.prose > * + * { margin-top:1.15em; }
.prose h2 { font-size:clamp(23px,3.2vw,28px); font-weight:800; letter-spacing:-.025em; line-height:1.25; color:var(--text); margin-top:2.1em; }
.prose h3 { font-size:20px; font-weight:800; letter-spacing:-.015em; color:var(--text); margin-top:1.8em; }
.prose a { color:var(--indigo-lt); text-decoration:underline; text-underline-offset:3px; text-decoration-color:rgba(129,140,248,.45); }
.prose a:hover { text-decoration-color:currentColor; }
.prose strong { color:var(--text); font-weight:700; }
.prose ul, .prose ol { padding-left:1.3em; }
.prose li + li { margin-top:.45em; }
.prose li::marker { color:var(--indigo-lt); }
.prose blockquote { border-left:3px solid var(--indigo); padding:4px 0 4px 20px; color:var(--muted); font-style:italic; }
.prose code { font-family:var(--mono); font-size:.86em; padding:2px 6px; border-radius:6px; background:var(--code-bg); border:1px solid var(--border); }
.prose code, .prose pre { font-variant-ligatures:none; }
.prose pre { background:var(--code-bg); border:1px solid var(--border); border-radius:14px; padding:18px 20px; overflow-x:auto;
  font-size:14px; line-height:1.65; }
.prose pre code { padding:0; border:0; background:none; font-size:inherit; }
.prose hr { border:0; border-top:1px solid var(--border); margin:2.4em 0; }
.prose table { width:100%; border-collapse:collapse; font-size:15px; display:block; overflow-x:auto; }
.prose th, .prose td { text-align:left; padding:10px 12px; border-bottom:1px solid var(--border); }
.prose th { font-family:var(--mono); font-size:11.5px; letter-spacing:.08em; text-transform:uppercase; color:var(--faint); }

.cta { margin:10px 0 70px; padding:30px 28px; border-radius:22px; background:var(--surface); border:1px solid var(--border-hi);
  display:flex; align-items:center; justify-content:space-between; gap:20px; flex-wrap:wrap; }
.cta h3 { font-size:20px; font-weight:800; letter-spacing:-.02em; }
.cta p { color:var(--muted); font-size:15px; margin-top:4px; }
.btn { display:inline-flex; align-items:center; gap:8px; padding:12px 22px; border-radius:999px; background:var(--grad);
  color:#fff; font-size:14px; font-weight:700; box-shadow:0 8px 24px rgba(99,102,241,.3); white-space:nowrap; }
.btn:hover { box-shadow:0 14px 34px rgba(99,102,241,.5); }

.pn { display:grid; grid-template-columns:1fr 1fr; gap:16px; margin-bottom:80px; }
.pn a { padding:18px 20px; border-radius:16px; border:1px solid var(--border); background:var(--surface); }
.pn a:hover { border-color:var(--border-hi); }
.pn small { display:block; font-family:var(--mono); font-size:10.5px; letter-spacing:.14em; text-transform:uppercase; color:var(--faint); }
.pn span { display:block; font-weight:700; font-size:15px; line-height:1.4; margin-top:6px; }
.pn .next { text-align:right; grid-column:2; }
@media (max-width:600px) { .pn { grid-template-columns:1fr; } .pn .next { grid-column:1; } }

.bfoot { border-top:1px solid var(--border); padding:28px 0; color:var(--faint); font-size:14px; }
.bfoot .wrap { display:flex; justify-content:space-between; gap:12px; flex-wrap:wrap; }
.bfoot a:hover { color:var(--indigo-lt); }

/* WhatsApp button */
#wa { position:fixed; right:22px; bottom:22px; z-index:60; width:56px; height:56px; border-radius:999px; display:grid; place-items:center;
  background:#25d366; color:#fff; box-shadow:0 10px 28px rgba(37,211,102,.4); transition:transform .3s, box-shadow .3s; }
#wa:hover { transform:translateY(-3px) scale(1.05); box-shadow:0 14px 34px rgba(37,211,102,.55); }
#wa svg { width:28px; height:28px; }
#wa .wa-tip { position:absolute; right:calc(100% + 12px); top:50%; transform:translateY(-50%); white-space:nowrap; padding:8px 13px;
  border-radius:10px; font-size:13px; font-weight:600; background:var(--surface-solid); color:var(--text); border:1px solid var(--border);
  opacity:0; pointer-events:none; transition:opacity .25s; }
#wa:hover .wa-tip { opacity:1; }
@media (max-width:600px) { #wa { right:14px; bottom:14px; } #wa .wa-tip { display:none; } }