/*
Theme Name: Vệ Tinh
Description: Theme nội dung kỹ thuật điện lạnh — editorial/technical, tự code SEO, 0 plugin, mỗi site một bản sắc.
Version: 1.2.5
Requires PHP: 8.0
Text Domain: vetinh
*/

/* ===== Tokens ===== */
:root{
  --f-sans: var(--font-body, system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif);
  --f-head: var(--font-head, system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif);
  --f-mono: ui-monospace,"SF Mono","Cascadia Code","Consolas",monospace;
  --ink:#10181f; --ink2:#33424f; --muted:#697785;
  --paper:#f4f6f8; --panel:#ffffff; --line:#e0e5ea; --line2:#eef1f4;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--f-sans);font-size:17px;line-height:1.7;color:var(--ink2);background:var(--paper);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-accent);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{font-family:var(--f-head);color:var(--ink);line-height:1.18;margin:0 0 .5em;letter-spacing:-.012em}
p{margin:0 0 1.1em}
.wrap{max-width:1180px;margin:0 auto;padding:0 22px}
.mono{font-family:var(--f-mono)}
/* icon SVG line */
.ic{width:1.05em;height:1.05em;display:inline-block;vertical-align:-.16em;flex:0 0 auto}
.ic-sm{width:.92em;height:.92em}
.ic-ph{width:2.4rem;height:2.4rem;color:color-mix(in srgb,var(--c-accent) 60%,var(--muted));stroke-width:1.5}
/* nhãn kỹ thuật (signature) */
.tag{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:var(--c-accent);font-weight:600}
.eyebrow{font-family:var(--f-mono);font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);display:inline-block;margin-bottom:14px}
.eyebrow b{color:var(--c-accent);font-weight:700}

/* ===== Topbar (instrument status) ===== */
.site-topbar{background:var(--ink);color:#cdd7e1;font-family:var(--f-mono);font-size:.78rem;letter-spacing:.02em}
.site-topbar .container,.site-topbar .wrap{max-width:1180px;margin:0 auto;padding:8px 22px;display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap}
.site-topbar a{color:#fff}
.tb-status{display:inline-flex;align-items:center;gap:8px}
.tb-dot{width:7px;height:7px;border-radius:50%;background:#37d67a;box-shadow:0 0 0 3px rgba(55,214,122,.25);animation:blink 1.8s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.4}}
.site-topbar .menu{display:flex;gap:16px;list-style:none;margin:0;padding:0}

/* ===== Masthead ===== */
.site-header{background:var(--panel);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.site-header .container,.site-header .wrap{max-width:1180px;margin:0 auto;padding:0 22px;display:flex;align-items:center;gap:24px;justify-content:space-between;min-height:72px}
.brand{display:flex;flex-direction:column}
.brand .name{font-family:var(--f-head);font-weight:800;font-size:1.4rem;color:var(--ink);line-height:1.05;letter-spacing:-.02em}
.brand .tagline{font-family:var(--f-mono);font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-top:3px}
.brand:hover{text-decoration:none}
.nav-primary ul{display:flex;gap:2px;list-style:none;margin:0;padding:0}
.nav-primary a{display:block;padding:9px 13px;color:var(--ink2);font-weight:600;font-size:.95rem;border-radius:6px}
.nav-primary a:hover,.nav-primary .current-menu-item>a{color:var(--c-accent);background:var(--line2);text-decoration:none}
.header-cta{display:inline-flex;align-items:center;gap:7px;font-family:var(--f-mono);font-weight:700;font-size:.9rem;color:var(--ink);border:1.5px solid var(--ink);padding:9px 14px;border-radius:6px}
.header-cta:hover{background:var(--ink);color:#fff;text-decoration:none}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:6px;padding:7px 11px;font-size:1.1rem;cursor:pointer}

/* ===================== FRONT PAGE ===================== */
/* HERO: statement + directory */
.fp-hero{border-bottom:1px solid var(--line);background:
  linear-gradient(180deg, color-mix(in srgb,var(--c-accent) 6%,var(--paper)), var(--paper));}
.fp-hero .wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:54px;padding-top:54px;padding-bottom:54px}
.fp-h1{font-size:clamp(2.1rem,4.3vw,3.25rem);line-height:1.08;margin:6px 0 18px}
.fp-h1 em{font-style:normal;color:var(--c-accent)}
.fp-lead-txt{font-size:1.14rem;color:var(--ink2);max-width:34em;margin-bottom:26px}
.fp-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.act-call{display:inline-flex;align-items:center;gap:9px;background:var(--c-accent);color:#fff;font-weight:700;padding:13px 20px;border-radius:8px}
.act-call b{font-family:var(--f-mono);letter-spacing:.01em}
.act-call:hover{background:var(--c-accent-d);color:#fff;text-decoration:none}
.act-zalo{display:inline-flex;align-items:center;gap:8px;font-weight:700;color:#fff;background:#0068ff;padding:13px 20px;border-radius:8px;font-size:1rem}
.act-zalo:hover{background:#0055d6;color:#fff;text-decoration:none}
.act-book{display:inline-flex;align-items:center;gap:8px;font-weight:700;color:var(--ink);background:var(--panel);border:1.5px solid var(--ink);padding:12px 20px;border-radius:8px;font-size:1rem}
.act-book:hover{background:var(--ink);color:#fff;text-decoration:none}
.fp-meta{display:flex;gap:8px 26px;flex-wrap:wrap;margin-top:26px;font-family:var(--f-mono);font-size:.78rem;color:var(--muted);letter-spacing:.02em}
.fp-meta b{color:var(--ink)}
/* directory */
.fp-dir{border:1px solid var(--line);background:var(--panel);border-radius:10px;overflow:hidden}
.fp-dir-h{padding:14px 18px;border-bottom:1px solid var(--line);font-family:var(--f-mono);font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);display:flex;justify-content:space-between}
.dir-row{display:flex;align-items:baseline;gap:14px;padding:15px 18px;border-bottom:1px solid var(--line2);transition:background .12s}
.dir-row:last-child{border-bottom:0}
.dir-row:hover{background:var(--line2);text-decoration:none}
.dir-no{font-family:var(--f-mono);font-size:.8rem;color:var(--c-accent);font-weight:700;min-width:26px}
.dir-name{font-weight:700;color:var(--ink);font-size:1.05rem;flex:1}
.dir-row:hover .dir-name{color:var(--c-accent)}
.dir-n{font-family:var(--f-mono);font-size:.76rem;color:var(--muted)}

.fp-h2line{margin-top:14px;font-family:var(--f-mono);font-size:.85rem;color:var(--muted)}
.fp-h2line a{color:var(--ink);font-weight:600}
/* Layout variants */
.fp-v1 .wrap{grid-template-columns:.85fr 1.15fr}
.fp-v1 .fp-hero-l{order:2}.fp-v1 .fp-dir{order:1}
.fp-v2 .wrap{grid-template-columns:1fr;gap:34px}
.fp-v2 .fp-dir{display:grid}
.fp-v2 .fp-dir .fp-dir-h{grid-column:1/-1}
@media(min-width:760px){
  .fp-v2 .fp-dir{grid-template-columns:repeat(3,1fr)}
  .fp-v2 .dir-row{border-bottom:1px solid var(--line2);border-right:1px solid var(--line2)}
}
.book-or{margin-top:16px;font-family:var(--f-mono);font-size:.86rem;color:var(--muted)}
.book-or a{color:var(--ink)}

/* SECTION frame + nền riêng từng khối (nhịp thị giác) */
.sect{padding:56px 0;border-bottom:1px solid var(--line)}
.sec-white{background:var(--panel)}
.sec-soft{background:var(--paper)}
.sect-h{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:26px;flex-wrap:wrap}
.sect-h h2{font-size:1.7rem;margin:0}
.sect-h .more{font-family:var(--f-mono);font-size:.82rem;color:var(--c-accent)}

/* FEATURED lead article (có ảnh) */
.fp-feat{display:grid;grid-template-columns:360px 1fr;gap:30px;align-items:center}
.fp-feat .feat-img{display:block;aspect-ratio:16/11;border-radius:12px;overflow:hidden;background:var(--line2)}
.fp-feat .feat-img img{width:100%;height:100%;object-fit:cover}
.thumb-ph{display:flex;align-items:center;justify-content:center;width:100%;height:100%;font-size:2.6rem;background:linear-gradient(135deg,color-mix(in srgb,var(--c-accent) 15%,var(--paper)),var(--paper))}
.fp-feat h3{font-size:1.6rem;margin:0 0 10px}
.fp-feat h3 a{color:var(--ink)}.fp-feat h3 a:hover{color:var(--c-accent)}
.fp-feat p{color:var(--muted);margin:0 0 14px;max-width:60ch}
.read{font-family:var(--f-mono);font-size:.84rem;color:var(--c-accent)}

/* ARTICLE INDEX — ruled list (đẹp không cần ảnh) */
.idx{display:grid;grid-template-columns:1fr 1fr;gap:0 48px}
.idx-item{display:grid;grid-template-columns:34px 1fr;gap:14px;padding:18px 0;border-top:1px solid var(--line);align-items:start}
.idx-no{font-family:var(--f-mono);font-size:.82rem;color:var(--c-accent);font-weight:700;padding-top:3px}
.idx-cat{font-family:var(--f-mono);font-size:.7rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);display:block;margin-bottom:4px}
.idx-title{font-size:1.08rem;font-weight:700;line-height:1.35;margin:0 0 5px}
.idx-title a{color:var(--ink)}.idx-title a:hover{color:var(--c-accent)}
.idx-date{font-family:var(--f-mono);font-size:.74rem;color:var(--muted)}

/* BOOKING — panel sáng, gọn */
.fp-book{background:
  radial-gradient(900px 300px at 12% 0%, color-mix(in srgb,var(--c-accent) 16%,transparent), transparent 60%),
  linear-gradient(180deg, color-mix(in srgb,var(--c-accent) 10%, var(--paper)), var(--paper))}
.fp-book .book-l h2,.fp-book .eyebrow b{color:var(--c-accent)}
.fp-book .wrap{display:grid;grid-template-columns:1fr 420px;gap:48px;align-items:center}
.book-l h2{font-size:1.7rem}
.book-l p{color:var(--muted)}
.book-pts{list-style:none;margin:14px 0 0;padding:0;display:grid;gap:8px;font-family:var(--f-mono);font-size:.86rem;color:var(--ink2)}
.book-pts li::before{content:"›";color:var(--c-accent);font-weight:800;margin-right:9px}
.book-card{border:1px solid var(--line);border-radius:10px;padding:22px;background:var(--panel);box-shadow:0 10px 30px rgba(16,24,31,.06)}
.book-card .mono-h{font-family:var(--f-mono);font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:14px}
.book-form{display:grid;gap:11px}
.book-form input,.book-form select,.book-form textarea{font:inherit;padding:11px 13px;border:1.5px solid var(--line);border-radius:7px;background:var(--paper);color:var(--ink);width:100%}
.book-form input:focus,.book-form select:focus,.book-form textarea:focus{outline:none;border-color:var(--c-accent);background:#fff}
.vt-hp{position:absolute;left:-9999px}
.btn-book{background:var(--ink);color:#fff;font-weight:700;font-size:1rem;padding:13px;border:0;border-radius:7px;cursor:pointer}
.btn-book:hover{background:var(--c-accent)}
.book-ok{background:#ecfdf5;border:1px solid #a7f3d0;color:#065f46;padding:16px;border-radius:8px;text-align:center}
.book-err{background:#fef2f2;border:1px solid #fecaca;color:#991b1b;padding:10px 13px;border-radius:7px;margin-bottom:11px;font-size:.88rem}

/* FAQ */
.faq{max-width:820px}
.faq-item{border-top:1px solid var(--line)}
.faq-item summary{cursor:pointer;font-weight:700;color:var(--ink);padding:17px 30px 17px 0;list-style:none;position:relative}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-family:var(--f-mono);position:absolute;right:2px;top:15px;color:var(--c-accent);font-size:1.3rem}
.faq-item[open] summary::after{content:"−"}
.faq-a{padding:0 0 17px;color:var(--muted)}

/* ===================== INNER PAGES (archive/single/index) ===================== */
.layout{max-width:1180px;margin:34px auto;padding:0 22px;display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:46px}
@media(max-width:900px){.layout{grid-template-columns:1fr;gap:30px}}
.section-title{font-size:1.6rem;margin:0 0 22px;padding-bottom:14px;border-bottom:2px solid var(--ink)}
.breadcrumb{font-family:var(--f-mono);font-size:.76rem;color:var(--muted);margin:0 0 16px}
.breadcrumb a{color:var(--muted)}.breadcrumb span{color:var(--ink)}
/* post list dùng cùng .idx ở mọi nơi: nhưng giữ .post-grid cho tương thích → ruled list */
.post-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:24px}
.post-grid .card{display:flex;flex-direction:column;background:var(--panel);border:1px solid var(--line);border-radius:10px;overflow:hidden;transition:.15s}
.post-grid .card:hover{border-color:var(--c-accent);box-shadow:0 10px 26px rgba(16,24,31,.08);transform:translateY(-2px)}
.post-grid .card .thumb{display:block;aspect-ratio:16/10;background:var(--line2);overflow:hidden}
.post-grid .card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.post-grid .card:hover .thumb img{transform:scale(1.04)}
.post-grid .card .body{padding:14px 16px;display:flex;flex-direction:column;flex:1}
.post-grid .card .cat{font-family:var(--f-mono);font-size:.7rem;letter-spacing:.06em;text-transform:uppercase;color:var(--c-accent);margin-bottom:7px;display:block}
.post-grid .card h3{font-size:1.05rem;margin:0 0 10px;line-height:1.35}
.post-grid .card h3 a{color:var(--ink)}.post-grid .card h3 a:hover{color:var(--c-accent)}
.post-grid .card .meta{margin-top:auto;font-family:var(--f-mono);font-size:.74rem;color:var(--muted)}

/* single */
.entry-header h1{font-size:clamp(1.7rem,3.4vw,2.4rem);margin-bottom:.35em}
.entry-meta{display:flex;flex-wrap:wrap;gap:6px 18px;font-family:var(--f-mono);font-size:.78rem;color:var(--muted);margin-bottom:20px}
.entry-meta .cat-link{color:var(--c-accent)}
.featured{border-radius:10px;overflow:hidden;margin:0 0 24px}
.entry-content{font-size:1.07rem;line-height:1.8}
.entry-content h2{margin-top:1.5em;font-size:1.5rem}
.entry-content h3{margin-top:1.2em;font-size:1.2rem}
.entry-content img{border-radius:8px;margin:1.2em 0}
.entry-content a{text-decoration:underline}
.entry-content ul,.entry-content ol{padding-left:1.3em}
.entry-content blockquote{margin:1.3em 0;padding:.4em 1.2em;border-left:3px solid var(--c-accent);background:var(--line2);color:var(--ink2)}
.entry-content table{width:100%;border-collapse:collapse;margin:1em 0}
.entry-content td,.entry-content th{border:1px solid var(--line);padding:9px 11px}
.tagcloud{margin-top:22px}.tagcloud a{display:inline-block;font-family:var(--f-mono);font-size:.78rem;border:1px solid var(--line);padding:4px 11px;border-radius:20px;margin:0 5px 7px 0;color:var(--muted)}
.related{margin-top:44px}

/* CTA box (single) */
.cta-box{border:1px solid var(--line);border-left:4px solid var(--c-accent);border-radius:8px;padding:22px 24px;margin:30px 0;background:var(--panel)}
.cta-box h3{margin:0 0 .3em}.cta-box .phone{font-family:var(--f-mono);font-size:1.5rem;font-weight:800;color:var(--ink)}

/* sidebar */
.sidebar .widget{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:18px 20px;margin-bottom:20px}
.widget-title{font-size:.95rem;font-family:var(--f-mono);letter-spacing:.06em;text-transform:uppercase;margin:0 0 14px;padding-bottom:11px;border-bottom:1px solid var(--line)}
.widget ul{list-style:none;margin:0;padding:0}
.widget li{padding:7px 0;border-bottom:1px solid var(--line2);font-size:.94rem}
.widget li:last-child{border-bottom:0}
.widget a{color:var(--ink2)}.widget a:hover{color:var(--c-accent);text-decoration:none}
.mini-post{display:flex;gap:11px;align-items:flex-start}
.mini-post .t{width:58px;height:44px;flex:0 0 58px;border-radius:6px;object-fit:cover;background:var(--line2)}
.mini-post .mp-cat{font-family:var(--f-mono);font-size:.68rem;color:var(--c-accent)}

/* pagination */
.pagination{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;margin:36px 0}
.pagination a,.pagination span{font-family:var(--f-mono);padding:9px 14px;border:1px solid var(--line);border-radius:6px;color:var(--ink2)}
.pagination .current{background:var(--ink);color:#fff;border-color:var(--ink)}
.pagination a:hover{background:var(--line2);text-decoration:none}

/* ===== Footer ===== */
.site-footer{background:var(--ink);color:#aeb9c4;margin-top:0;padding:48px 0 0;font-size:.93rem}
.site-footer .container,.site-footer .wrap{max-width:1180px;margin:0 auto;padding:0 22px}
.site-footer a{color:#cdd7e1}.site-footer a:hover{color:#fff}
.footer-cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:34px;padding-bottom:30px}
.site-footer h4{color:#fff;font-family:var(--f-mono);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;margin-bottom:14px}
.site-footer ul{list-style:none;margin:0;padding:0}.site-footer li{padding:5px 0}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:16px 0;text-align:center;font-family:var(--f-mono);font-size:.78rem;color:#7d8b99}

/* ===== Action bar (mobile) + Zalo float ===== */
.action-bar{display:none}
.zalo-float{position:fixed;right:16px;bottom:22px;z-index:60;width:52px;height:52px;border-radius:50%;background:#0068ff;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 22px rgba(0,104,255,.4)}
.zalo-float:hover{text-decoration:none}

/* ===== Utilities ===== */
.skip-link{position:absolute;left:-999px}
.screen-reader-text{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* ===== Responsive ===== */
@media(max-width:900px){
  .fp-hero .wrap{grid-template-columns:1fr;gap:34px}
  .fp-book .wrap{grid-template-columns:1fr;gap:26px}
  .idx{grid-template-columns:1fr;gap:0}
}
@media(max-width:760px){
  .site-topbar{display:none}
  .nav-primary{display:none;position:absolute;top:100%;left:0;right:0;background:var(--panel);border-bottom:1px solid var(--line);padding:8px 0}
  .nav-primary.open{display:block}
  .nav-primary ul{flex-direction:column;padding:0 16px}
  .nav-toggle{display:inline-block}
  .header-cta{display:none}
  .action-bar{display:grid;grid-template-columns:1fr 1fr 1fr;position:fixed;left:0;right:0;bottom:0;z-index:60;background:var(--panel);border-top:1px solid var(--line);box-shadow:0 -3px 16px rgba(0,0,0,.08);transition:transform .25s}
  .action-bar.hide{transform:translateY(100%)}
  .action-bar a{display:flex;flex-direction:column;align-items:center;gap:2px;padding:9px 4px;font-family:var(--f-mono);font-size:.7rem;font-weight:700;color:var(--ink)}
  .action-bar a:hover{text-decoration:none}
  .action-bar .ab-ic{width:19px;height:19px}
  .action-bar .ab-call{color:var(--c-accent)}
  .action-bar .ab-zalo{color:#0068ff;border-left:1px solid var(--line);border-right:1px solid var(--line)}
  .zalo-float{bottom:76px;width:46px;height:46px}
  body{padding-bottom:60px}
  .footer-cols{grid-template-columns:1fr;gap:24px}
  .fp-feat{grid-template-columns:1fr}.fp-feat .big-no{display:none}
}