/* Sài Gòn Tự Lái — shared CSS cho trang SEO (dark/gold) */
:root{
  --gold:#D4AF37; --gold-light:#E8C55B; --gold-dark:#B8960F;
  --charcoal:#1a1a1a; --charcoal-light:#2d2d2d; --charcoal-dark:#0f0f0f;
  --text:#e7e7e7; --text-muted:#9aa0a6; --line:rgba(255,255,255,.1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Montserrat',system-ui,sans-serif;background:var(--charcoal);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--gold);text-decoration:none}
h1,h2,h3,h4{font-family:'Cormorant Garamond','Georgia',serif;color:#fff;line-height:1.2}
.glass{background:rgba(255,255,255,.05);backdrop-filter:blur(10px);border:1px solid var(--line)}

/* Header */
.hd{position:sticky;top:0;z-index:50;background:rgba(15,15,15,.9);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.hd-in{max-width:1200px;margin:0 auto;padding:14px 20px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.brand{font-family:'Cormorant Garamond',serif;font-size:1.5rem;font-weight:700;color:var(--gold);letter-spacing:.5px}
.brand span{color:#fff}
.hd-nav{display:flex;align-items:center;gap:18px;margin-left:auto}
.hd-nav a{color:var(--text-muted);font-size:.9rem;font-weight:500}
.hd-nav a:hover{color:var(--gold)}
.hd-actions{display:flex;align-items:center;gap:10px}
.hd-call{background:linear-gradient(135deg,var(--gold),var(--gold-dark));color:var(--charcoal-dark)!important;padding:9px 18px;border-radius:999px;font-weight:700;font-size:.9rem;white-space:nowrap}
.hd-burger{display:none;background:none;border:none;color:var(--gold);font-size:1.6rem;line-height:1;cursor:pointer;padding:2px 6px}
@media(max-width:760px){
  .hd-in{position:relative;flex-wrap:nowrap}
  .hd-burger{display:block}
  .hd-actions{margin-left:auto}
  .hd-nav{position:absolute;top:100%;left:0;right:0;margin:0;flex-direction:column;align-items:stretch;gap:0;background:rgba(15,15,15,.98);border-bottom:1px solid var(--line);padding:0 20px;max-height:0;overflow:hidden;transition:max-height .3s ease}
  .hd.open .hd-nav{max-height:70vh;padding:6px 20px 14px}
  .hd-nav a{padding:13px 2px;border-bottom:1px solid var(--line);font-size:1rem}
  .hd-call{padding:8px 14px;font-size:.85rem}
}

/* Layout */
.wrap{max-width:860px;margin:0 auto;padding:0 20px}
.wrap-wide{max-width:1200px;margin:0 auto;padding:0 20px}
.crumb{font-size:.82rem;color:var(--text-muted);margin:22px 0 6px}
.crumb a{color:var(--text-muted)}.crumb a:hover{color:var(--gold)}.crumb span{margin:0 7px;color:#555}

/* Article */
.art h1{font-size:clamp(1.9rem,4.5vw,2.8rem);margin:8px 0 12px}
.art .meta{color:var(--text-muted);font-size:.88rem;margin-bottom:18px}
.art .lead{font-size:1.12rem;color:#cfcfcf;margin-bottom:26px}
.art h2{font-size:1.6rem;color:var(--gold-light);margin:34px 0 12px;padding-left:14px;border-left:3px solid var(--gold)}
.art h3{font-size:1.2rem;color:#fff;margin:22px 0 8px}
.art p,.art li{font-size:1.03rem;margin-bottom:13px;color:var(--text)}
.art ul,.art ol{margin:0 0 16px 22px}.art li{margin-bottom:7px}
.art strong{color:#fff}
.art a{color:var(--gold-light);text-decoration:underline;text-underline-offset:3px}
.art figure{margin:24px 0}
.art figure img{width:100%;border-radius:14px;border:1px solid var(--line)}
.art figcaption{text-align:center;color:var(--text-muted);font-size:.88rem;margin-top:8px;font-style:italic}
.art table{width:100%;border-collapse:collapse;margin:20px 0;font-size:.97rem}
.art th,.art td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.art th{background:rgba(212,175,55,.12);color:var(--gold-light)}
.callout{background:rgba(212,175,55,.08);border:1px solid rgba(212,175,55,.25);border-radius:14px;padding:16px 18px;margin:24px 0}
.callout strong{color:var(--gold-light)}

/* Hero (trang xe/danh mục) */
.hero{padding:30px 0 6px}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center}
.hero-img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:20px;border:1px solid var(--line)}
.price-tag{font-family:'Cormorant Garamond',serif;font-size:2.6rem;font-weight:700;color:var(--gold)}
.price-tag small{font-size:1rem;color:var(--text-muted);font-family:'Montserrat',sans-serif}
.specs{display:flex;flex-wrap:wrap;gap:10px;margin:14px 0}
.spec{background:rgba(255,255,255,.05);border:1px solid var(--line);border-radius:10px;padding:8px 14px;font-size:.9rem;color:#ddd}
@media(max-width:720px){.hero-grid{grid-template-columns:1fr}}

/* CTA buttons */
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin:18px 0}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 24px;border-radius:999px;font-weight:700;font-size:1rem}
.btn-gold{background:linear-gradient(135deg,var(--gold),var(--gold-dark));color:var(--charcoal-dark)}
.btn-zalo{background:rgba(255,255,255,.06);color:#fff;border:1px solid rgba(212,175,55,.4)}
.btn:hover{filter:brightness(1.06)}

/* CTA box */
.cta-box{background:linear-gradient(135deg,rgba(212,175,55,.12),rgba(212,175,55,.04));border:1px solid rgba(212,175,55,.25);border-radius:20px;padding:30px 24px;margin:40px 0;text-align:center}
.cta-box h3{font-size:1.5rem;margin-bottom:8px}
.cta-box p{color:var(--text-muted);margin-bottom:18px}

/* FAQ */
.faq{margin:34px 0}
.faq details{background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:12px;padding:14px 18px;margin-bottom:12px}
.faq summary{font-weight:700;cursor:pointer;color:#fff;font-family:'Cormorant Garamond',serif;font-size:1.12rem}
.faq p{margin:10px 0 0;color:var(--text-muted)}

/* Car grid (trang danh mục/khu vực) */
.cars{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:18px;margin:26px 0}
.car{background:var(--charcoal-light);border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:.25s}
.car:hover{transform:translateY(-4px);border-color:rgba(212,175,55,.4)}
.car img{width:100%;aspect-ratio:4/3;object-fit:cover}
.car .b{padding:16px}
.car .b h3{font-size:1.15rem}
.car .b .sub{color:var(--text-muted);font-size:.82rem;margin:4px 0 8px}
.car .b .p{color:var(--gold);font-weight:700;font-size:1.2rem}
.car .b .p small{color:var(--text-muted);font-weight:400;font-size:.85rem}
.car-link{display:inline-block;margin-top:10px;color:var(--gold-light);font-weight:600;font-size:.9rem}

/* Related */
.related{border-top:1px solid var(--line);margin-top:40px;padding-top:22px}
.related h3{color:var(--gold-light);margin-bottom:12px}
.related ul{list-style:none;margin:0}.related li{margin-bottom:8px}

/* Posts (blog hub) */
.posts{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px;margin:26px 0}
.post-card{background:var(--charcoal-light);border:1px solid var(--line);border-radius:16px;padding:18px;transition:.25s}
.post-card:hover{border-color:rgba(212,175,55,.4);transform:translateY(-3px)}
.post-card h2{font-size:1.15rem;color:var(--gold-light);margin-bottom:8px}
.post-card p{color:var(--text-muted);font-size:.93rem}
.post-card a.read{display:inline-block;margin-top:10px;color:var(--gold);font-weight:600}
.post-card{overflow:hidden}
.post-thumb{display:block;margin:-18px -18px 14px}
.post-thumb img{width:100%;aspect-ratio:40/21;object-fit:cover;border-bottom:1px solid var(--line)}
.post-hero{margin:16px 0 28px}
.post-hero img{width:100%;aspect-ratio:1200/630;object-fit:cover;border-radius:16px;border:1px solid var(--line)}
.page-title{font-size:clamp(1.9rem,4.5vw,2.6rem);margin:22px 0 6px}
.page-sub{color:var(--text-muted);margin-bottom:8px}

/* Footer */
.ft{background:var(--charcoal-dark);border-top:1px solid var(--line);margin-top:50px;padding:38px 20px 26px;color:var(--text-muted);font-size:.9rem}
.ft a{color:var(--gold)}
.ft-cols{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr 1.1fr;gap:22px}
.ft-col h4{color:var(--gold-light);font-size:1rem;margin-bottom:10px;font-family:'Montserrat',sans-serif;font-weight:600}
.ft-col a{display:block;color:var(--text-muted);margin-bottom:7px;font-size:.88rem}
.ft-col a:hover{color:var(--gold)}
.ft-about p{margin:8px 0;line-height:1.6}
.ft-copy{max-width:1200px;margin:24px auto 0;padding-top:16px;border-top:1px solid var(--line);text-align:center;font-size:.82rem}
@media(max-width:860px){.ft-cols{grid-template-columns:1fr 1fr}.ft-about{grid-column:1/-1}}

/* Floating Zalo/Call (mobile) */
.float{position:fixed;right:16px;bottom:16px;z-index:60;display:flex;flex-direction:column;gap:10px}
.float a{width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.4rem;box-shadow:0 6px 20px rgba(0,0,0,.4)}
.float .call{background:linear-gradient(135deg,var(--gold),var(--gold-dark));color:var(--charcoal-dark)}
.float .zalo{background:#0068ff;color:#fff;font-size:.85rem;font-weight:700}


/* === Trang chi tiết xe: gallery (Mioto style) + đồ độ === */
.gal{display:block}
.gal-strip{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:8px;border-radius:16px;scrollbar-width:none}
.gal-strip::-webkit-scrollbar{display:none}
.gal-strip img{flex:0 0 100%;scroll-snap-align:center;aspect-ratio:4/3;object-fit:cover;border-radius:16px;background:#1a1a1a}
.gal-thumbs{display:flex;gap:8px;overflow-x:auto;margin-top:8px;scrollbar-width:none}
.gal-thumbs::-webkit-scrollbar{display:none}
.gal-thumbs img{width:84px;height:62px;object-fit:cover;border-radius:8px;cursor:pointer;opacity:.55;border:2px solid transparent;flex:0 0 auto;transition:opacity .2s,border-color .2s}
.gal-thumbs img.on,.gal-thumbs img:hover{opacity:1;border-color:#D4AF37}
.car-loc{color:#cbd2d9;font-size:.95rem;margin:4px 0}
.car-note{color:#D4AF37;font-size:.9rem;background:rgba(212,175,55,.1);border:1px solid rgba(212,175,55,.3);border-radius:10px;padding:8px 12px;margin:8px 0}
.mods{margin:24px 0}
.mods-list{list-style:none;padding:0;margin:12px 0 0;display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:8px}
.mods-list li{position:relative;padding:8px 12px 8px 34px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:10px;font-size:.95rem}
.mods-list li::before{content:"✅";position:absolute;left:10px}


/* === Lightbox xem full ảnh === */
.gal-strip img{cursor:zoom-in}
.lb{display:none;position:fixed;inset:0;z-index:9999;background:rgba(0,0,0,.93);align-items:center;justify-content:center}
.lb.on{display:flex}
.lb-img{max-width:94vw;max-height:88vh;object-fit:contain;border-radius:8px;user-select:none}
.lb-close{position:absolute;top:8px;right:22px;color:#fff;font-size:42px;line-height:1;cursor:pointer;z-index:2}
.lb-nav{position:absolute;top:50%;transform:translateY(-50%);background:rgba(255,255,255,.12);color:#fff;border:none;font-size:24px;width:46px;height:46px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center}
.lb-prev{left:14px}.lb-next{right:14px}
.lb-nav:hover{background:rgba(212,175,55,.65)}
.lb-count{position:absolute;bottom:16px;left:50%;transform:translateX(-50%);color:#fff;background:rgba(0,0,0,.5);padding:4px 12px;border-radius:999px;font-size:14px}