/* ===========================================================
   AutoPMTA Blog — shared stylesheet
   Dark + orange theme, matched to the main landing page.
   =========================================================== */
:root{
  --bg:#0a0a0f;
  --bg-soft:#11121a;
  --bg-card:#15161f;
  --bg-card-2:#1b1d28;
  --border:#262838;
  --fg:#f3f4f6;
  --muted:#9b9fb0;
  --muted-2:#6b6f80;
  --orange:#ff7a18;
  --orange-2:#ff9d3c;
  --orange-deep:#ff5e00;
  --glow:rgba(255,122,24,.45);
  --radius:16px;
  --maxw:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  background:var(--bg);color:var(--fg);line-height:1.7;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
.mono{font-family:'JetBrains Mono',monospace}

/* background fx */
.bg-fx{position:fixed;inset:0;z-index:-2;pointer-events:none;overflow:hidden}
.bg-fx::before{content:"";position:absolute;width:560px;height:560px;top:-240px;left:-120px;border-radius:50%;filter:blur(120px);opacity:.4;background:radial-gradient(circle,rgba(255,94,0,.5),transparent 70%)}
.grid-fx{position:fixed;inset:0;z-index:-1;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);
  background-size:46px 46px;
  mask-image:radial-gradient(ellipse 80% 50% at 50% 0%,#000 40%,transparent 100%);
  -webkit-mask-image:radial-gradient(ellipse 80% 50% at 50% 0%,#000 40%,transparent 100%);}

.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:9px;padding:13px 24px;border-radius:12px;font-weight:600;font-size:15px;cursor:pointer;border:1px solid transparent;transition:.25s;white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,var(--orange-deep),var(--orange-2));color:#fff;box-shadow:0 8px 30px var(--glow)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 40px var(--glow)}
.btn-ghost{background:rgba(255,255,255,.03);border-color:var(--border);color:var(--fg)}
.btn-ghost:hover{border-color:var(--orange);color:var(--orange-2);background:rgba(255,122,24,.06)}

/* nav */
header.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);background:rgba(10,10,15,.78);border-bottom:1px solid var(--border)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:20px;letter-spacing:-.02em}
.brand .logo{width:36px;height:36px;border-radius:11px;display:grid;place-items:center;background:linear-gradient(135deg,var(--orange-deep),var(--orange-2));box-shadow:0 6px 20px var(--glow)}
.brand .logo svg{width:20px;height:20px}
.nav-links{display:flex;gap:30px;align-items:center}
.nav-links a{font-size:15px;color:var(--muted);transition:.2s;font-weight:500}
.nav-links a:hover{color:var(--fg)}
.nav-cta{display:flex;gap:12px;align-items:center}
@media(max-width:820px){.nav-links{display:none}}
@media(max-width:520px){.nav-cta .btn-ghost{display:none}}

/* breadcrumb */
.crumb{font-size:13.5px;color:var(--muted-2);padding:26px 0 0;display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.crumb a{color:var(--muted);transition:.2s}
.crumb a:hover{color:var(--orange-2)}
.crumb .sep{opacity:.5}

/* page layout: article + sidebar */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:42px;padding:30px 0 80px;align-items:start}
@media(max-width:980px){.layout{grid-template-columns:1fr;gap:36px}}

/* article */
.tag-pill{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;font-size:12.5px;font-weight:600;background:rgba(255,122,24,.09);border:1px solid rgba(255,122,24,.25);color:var(--orange-2);margin-bottom:18px}
article.post h1{font-size:clamp(30px,4.4vw,46px);font-weight:900;letter-spacing:-.03em;line-height:1.1;margin-bottom:16px}
article.post .meta{display:flex;gap:18px;flex-wrap:wrap;font-size:13.5px;color:var(--muted-2);margin-bottom:30px;padding-bottom:24px;border-bottom:1px solid var(--border)}
article.post .meta span{display:inline-flex;align-items:center;gap:7px}
article.post .lead{font-size:19px;color:var(--muted);margin-bottom:30px;line-height:1.65}
article.post h2{font-size:clamp(23px,3vw,30px);font-weight:800;letter-spacing:-.02em;margin:42px 0 14px;scroll-margin-top:90px}
article.post h3{font-size:19px;font-weight:700;margin:28px 0 10px;color:var(--fg)}
article.post p{font-size:16.5px;color:#d6d8e2;margin-bottom:18px}
article.post ul,article.post ol{margin:0 0 20px 22px;color:#d6d8e2}
article.post li{font-size:16.5px;margin-bottom:9px}
article.post a.ilink{color:var(--orange-2);font-weight:600;border-bottom:1px solid rgba(255,122,24,.3);transition:.2s}
article.post a.ilink:hover{color:var(--orange);border-bottom-color:var(--orange)}
article.post strong{color:#fff;font-weight:700}
article.post blockquote{border-left:3px solid var(--orange);background:var(--bg-card);padding:16px 20px;border-radius:0 12px 12px 0;color:var(--muted);margin:0 0 22px;font-size:16px}
article.post code{font-family:'JetBrains Mono',monospace;font-size:14px;background:var(--bg-card-2);border:1px solid var(--border);border-radius:6px;padding:2px 7px;color:var(--orange-2)}
article.post pre{background:#0c0d13;border:1px solid var(--border);border-radius:12px;padding:18px;overflow-x:auto;margin:0 0 22px}
article.post pre code{background:none;border:none;padding:0;color:#d6d8e2;font-size:13.5px;line-height:1.8}

/* callout / TL;DR */
.callout{background:linear-gradient(180deg,var(--bg-card),var(--bg-soft));border:1px solid var(--border);border-left:3px solid var(--orange);border-radius:12px;padding:18px 22px;margin:0 0 28px}
.callout h4{font-size:13px;text-transform:uppercase;letter-spacing:.1em;color:var(--orange-2);margin-bottom:8px}
.callout p{margin:0;font-size:15.5px;color:var(--muted)}

/* tables */
.tbl-wrap{overflow-x:auto;margin:0 0 26px;border:1px solid var(--border);border-radius:12px}
table{width:100%;border-collapse:collapse;font-size:15px;min-width:480px}
table th,table td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--border)}
table th{background:var(--bg-card-2);color:#fff;font-weight:700;font-size:13.5px;text-transform:uppercase;letter-spacing:.04em}
table tr:last-child td{border-bottom:none}
table td{color:#d6d8e2}

/* key takeaways box */
.kt{background:var(--bg-card);border:1px solid var(--border);border-radius:14px;padding:24px;margin:34px 0}
.kt h3{margin:0 0 12px;font-size:17px;color:#fff}
.kt ul{margin:0 0 0 20px}
.kt li{color:var(--muted);font-size:15.5px}

/* FAQ section */
.faq-sec{margin-top:46px}
.faq-sec h2{font-size:clamp(23px,3vw,30px);font-weight:800;letter-spacing:-.02em;margin-bottom:18px}
.faq-sec .qa{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:.2s}
.faq-sec .qa[open]{border-color:rgba(255,122,24,.35)}
.faq-sec summary{list-style:none;cursor:pointer;padding:17px 20px;font-size:16.5px;font-weight:600;color:var(--fg);display:flex;justify-content:space-between;align-items:center;gap:14px}
.faq-sec summary::-webkit-details-marker{display:none}
.faq-sec .qa-i{color:var(--orange-2);font-size:22px;line-height:1;transition:.25s;flex-shrink:0}
.faq-sec .qa[open] .qa-i{transform:rotate(45deg)}
.faq-sec .qa-a{padding:0 20px 18px}
.faq-sec .qa-a p{margin:0;color:var(--muted);font-size:15.5px}

/* author box (E-E-A-T) */
.author{display:flex;gap:16px;align-items:flex-start;background:linear-gradient(180deg,var(--bg-card),var(--bg-soft));border:1px solid var(--border);border-radius:16px;padding:22px;margin-top:42px}
.author .ava{width:54px;height:54px;border-radius:50%;flex-shrink:0;display:grid;place-items:center;font-weight:800;font-size:18px;color:#fff;background:linear-gradient(135deg,var(--orange-deep),var(--orange-2));box-shadow:0 6px 18px var(--glow)}
.author .aname{font-size:16.5px;font-weight:700}
.author .arole{font-size:13px;color:var(--orange-2);font-weight:600;margin:2px 0 8px}
.author .abio{font-size:14.5px;color:var(--muted);margin:0}

/* external link marker */
a.ilink.ext::after{content:"↗";font-size:.8em;margin-left:2px;opacity:.7}

/* related links inside article */
.related{margin-top:46px;padding-top:30px;border-top:1px solid var(--border)}
.related h3{font-size:20px;font-weight:800;margin-bottom:16px}
.related-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:560px){.related-grid{grid-template-columns:1fr}}
.related a{display:block;background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:16px 18px;transition:.25s}
.related a:hover{border-color:rgba(255,122,24,.4);transform:translateY(-3px)}
.related a .c{font-size:12px;color:var(--orange-2);font-weight:600;text-transform:uppercase;letter-spacing:.05em}
.related a .t{display:block;margin-top:5px;font-size:15.5px;font-weight:600;color:var(--fg)}

/* ===== SIDEBAR ===== */
aside.side{position:sticky;top:90px;display:flex;flex-direction:column;gap:22px}
@media(max-width:980px){aside.side{position:static}}

/* sell banner */
.sell{position:relative;overflow:hidden;border-radius:18px;padding:26px 24px;background:linear-gradient(150deg,#1a1206,#0e0a14);border:1px solid rgba(255,122,24,.3);box-shadow:0 24px 60px rgba(255,94,0,.14)}
.sell::before{content:"";position:absolute;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(255,94,0,.4),transparent 70%);top:-150px;right:-90px;filter:blur(30px)}
.sell .badge{position:relative;display:inline-flex;align-items:center;gap:7px;font-size:11.5px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--orange-2);background:rgba(255,122,24,.1);border:1px solid rgba(255,122,24,.3);padding:5px 12px;border-radius:999px;margin-bottom:14px}
.sell h3{position:relative;font-size:21px;font-weight:850;letter-spacing:-.02em;line-height:1.2;margin-bottom:9px}
.sell p{position:relative;font-size:14px;color:var(--muted);margin-bottom:16px}
.sell .feats{position:relative;list-style:none;margin:0 0 18px;display:flex;flex-direction:column;gap:9px}
.sell .feats li{display:flex;gap:9px;font-size:13.5px;color:#d6d8e2}
.sell .feats li svg{width:16px;height:16px;color:var(--orange-2);flex-shrink:0;margin-top:2px}
.sell .price{position:relative;display:flex;align-items:baseline;gap:7px;margin-bottom:16px}
.sell .price .from{font-size:12.5px;color:var(--muted-2)}
.sell .price .amt{font-size:30px;font-weight:900;letter-spacing:-.02em}
.sell .price .per{font-size:13px;color:var(--muted-2)}
.sell .btn{position:relative;width:100%;justify-content:center}
.sell .tiny{position:relative;text-align:center;font-size:11.5px;color:var(--muted-2);margin-top:10px}

/* sidebar widgets */
.widget{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:22px}
.widget h4{font-size:13px;text-transform:uppercase;letter-spacing:.1em;color:var(--muted-2);margin-bottom:14px}
.widget ul{list-style:none}
.widget li{margin-bottom:11px}
.widget li:last-child{margin-bottom:0}
.widget a{display:flex;gap:9px;font-size:14.5px;color:var(--muted);transition:.2s;line-height:1.45}
.widget a:hover{color:var(--orange-2)}
.widget a .n{color:var(--orange-deep);font-weight:700;flex-shrink:0}

/* ===== HUB (blog index) ===== */
.hub-hero{text-align:center;padding:56px 0 30px}
.hub-hero h1{font-size:clamp(34px,5vw,56px);font-weight:900;letter-spacing:-.03em;line-height:1.05;margin-bottom:16px}
.hub-hero h1 .grad{background:linear-gradient(120deg,var(--orange-2),var(--orange-deep) 60%,#ff3d81);-webkit-background-clip:text;background-clip:text;color:transparent}
.hub-hero p{font-size:18px;color:var(--muted);max-width:640px;margin:0 auto}
.cat-row{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin:28px 0 10px}
.cat-row a{padding:9px 18px;border-radius:999px;font-size:14px;font-weight:600;background:var(--bg-card);border:1px solid var(--border);color:var(--muted);transition:.2s}
.cat-row a:hover{border-color:var(--orange);color:var(--orange-2)}
.cat{padding:40px 0 10px}
.cat-head{display:flex;align-items:center;gap:12px;margin-bottom:22px}
.cat-head .ic{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:rgba(255,122,24,.1);border:1px solid rgba(255,122,24,.25);color:var(--orange-2)}
.cat-head .ic svg{width:21px;height:21px}
.cat-head h2{font-size:26px;font-weight:850;letter-spacing:-.02em}
.cat-head p{font-size:14.5px;color:var(--muted-2)}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:880px){.card-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.card-grid{grid-template-columns:1fr}}
.pcard{display:flex;flex-direction:column;background:linear-gradient(180deg,var(--bg-card),var(--bg-soft));border:1px solid var(--border);border-radius:16px;padding:22px;transition:.28s;height:100%}
.pcard:hover{transform:translateY(-4px);border-color:rgba(255,122,24,.4)}
.pcard .c{font-size:11.5px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--orange-2);margin-bottom:10px}
.pcard h3{font-size:17.5px;font-weight:700;line-height:1.3;margin-bottom:9px}
.pcard p{font-size:14px;color:var(--muted);flex:1}
.pcard .more{margin-top:14px;font-size:13.5px;font-weight:600;color:var(--orange-2);display:inline-flex;align-items:center;gap:6px}

/* footer */
footer{border-top:1px solid var(--border);padding:46px 0 30px;margin-top:40px}
.foot-inner{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;align-items:center}
.foot-links{display:flex;gap:24px;flex-wrap:wrap}
.foot-links a{font-size:14px;color:var(--muted);transition:.2s}
.foot-links a:hover{color:var(--orange-2)}
.foot-copy{font-size:13.5px;color:var(--muted-2)}

/* reveal — visible by default (no-JS / crawler safe); animated only when JS is present */
.reveal{opacity:1;transform:none}
.js .reveal{opacity:0;transform:translateY(22px);transition:.6s cubic-bezier(.2,.7,.2,1)}
.js .reveal.in{opacity:1;transform:none}