/* CHC NAVTECH THAILAND — shared styles (orange-black theme) */
:root{
  --ink:#141414; --ink-2:#1e1e1e; --ink-3:#2a2a2a;
  --paper:#ffffff; --paper-2:#f6f4f1; --line:#e6e1da;
  --text:#1b1b1b; --muted:#5f5a54; --on-dark:#f3efe9; --on-dark-muted:#b9b1a7;
  --accent:#c8742e; --accent-2:#a85f22; --accent-soft:#f6e8db;
  --radius:10px; --wrap:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"IBM Plex Sans Thai","Segoe UI",Tahoma,sans-serif;color:var(--text);background:var(--paper);line-height:1.65;font-size:16px}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent-2)}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 16px}
.skip{position:absolute;left:-999px}.skip:focus{left:16px;top:8px;background:#fff;padding:8px;z-index:99}

/* header */
.site-header{background:var(--ink);color:var(--on-dark);position:sticky;top:0;z-index:50;border-bottom:3px solid var(--accent)}
.nav{display:flex;align-items:center;justify-content:space-between;min-height:64px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;color:var(--on-dark);text-decoration:none;font-weight:700;letter-spacing:.04em}
.brand b{color:var(--accent)}
.menu{display:flex;gap:4px;list-style:none;margin:0;padding:0;align-items:center}
.menu a{color:var(--on-dark);text-decoration:none;padding:10px 12px;border-radius:6px;font-size:.95rem;display:block}
.menu a:hover,.menu a[aria-current="page"]{color:var(--accent)}
.menu .has-sub{position:relative}
.menu .sub{display:none;position:absolute;top:100%;left:0;background:var(--ink-2);list-style:none;margin:0;padding:6px;min-width:240px;border-radius:8px;box-shadow:0 10px 30px rgba(0,0,0,.35)}
.menu .has-sub:hover .sub,.menu .has-sub:focus-within .sub{display:block}
.menu .cta{background:var(--accent);color:#fff!important;margin-left:6px}
.menu .cta:hover{background:var(--accent-2)}
.nav-toggle{display:none;background:none;border:1px solid var(--ink-3);color:var(--on-dark);padding:8px 12px;border-radius:6px;font:inherit}
@media (max-width:860px){
  .nav-toggle{display:block}
  .menu{display:none;position:absolute;left:0;right:0;top:64px;background:var(--ink);flex-direction:column;align-items:stretch;padding:8px 16px 16px}
  .menu.open{display:flex}
  .menu .sub{display:block;position:static;box-shadow:none;background:transparent;padding:0 0 0 12px}
  .menu .cta{margin:8px 0 0;text-align:center}
}

/* breadcrumb */
.crumbs{font-size:.85rem;color:var(--on-dark-muted);padding:14px 0 0}
.crumbs a{color:var(--on-dark-muted);text-decoration:none}
.crumbs a:hover{color:var(--accent)}
.crumbs span{margin:0 6px}

/* hero */
.hero{background:linear-gradient(120deg,var(--ink) 0%,var(--ink-2) 60%,#3a2716 100%);color:var(--on-dark);padding:56px 0 64px}
.hero.page{padding:24px 0 48px}
.hero .eyebrow{color:var(--accent);font-weight:600;letter-spacing:.12em;text-transform:uppercase;font-size:.8rem;margin:0 0 10px}
.hero h1{font-size:clamp(1.8rem,4vw,2.9rem);line-height:1.2;margin:0 0 16px;max-width:820px}
.hero p.lead{color:var(--on-dark-muted);font-size:1.08rem;max-width:720px;margin:0 0 24px}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:32px;align-items:center}
@media (max-width:860px){.hero-grid{grid-template-columns:1fr}}
.btns{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;padding:12px 22px;border-radius:8px;text-decoration:none;font-weight:600}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-2)}
.btn-ghost{border:1px solid #5a5048;color:var(--on-dark)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}

/* sections */
section{padding:64px 0}
section.alt{background:var(--paper-2)}
section.dark{background:var(--ink);color:var(--on-dark)}
.sec-head{max-width:760px;margin:0 0 32px}
.sec-head h2{font-size:clamp(1.5rem,3vw,2.1rem);margin:0 0 10px;line-height:1.25}
.sec-head p{color:var(--muted);margin:0}
section.dark .sec-head p{color:var(--on-dark-muted)}
.kicker{display:inline-block;color:var(--accent);font-weight:600;font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;margin-bottom:6px}

/* cards */
.grid{display:grid;gap:20px}
.g4{grid-template-columns:repeat(4,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g2{grid-template-columns:repeat(2,1fr)}
@media (max-width:1000px){.g4{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){.g4,.g3,.g2{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:border-color .2s,transform .2s}
.card:hover{border-color:var(--accent);transform:translateY(-2px)}
.card .media{background:var(--paper-2);aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;padding:16px}
.card .media img{max-height:100%;object-fit:contain}
.card .body{padding:18px;display:flex;flex-direction:column;gap:6px;flex:1}
.card h3{margin:0;font-size:1.12rem}
.card .tag{color:var(--accent-2);font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em}
.card p{margin:0;color:var(--muted);font-size:.95rem}
.card .more{margin-top:auto;padding-top:10px;font-weight:600;text-decoration:none}
.badge{display:inline-block;background:var(--accent-soft);color:var(--accent-2);font-size:.75rem;font-weight:600;padding:2px 8px;border-radius:99px;width:fit-content}

.feature{display:flex;gap:14px;align-items:flex-start}
.feature .ico{flex:none;width:44px;height:44px;border-radius:10px;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700}
.feature h3{margin:0 0 4px;font-size:1.05rem}
.feature p{margin:0;color:var(--muted);font-size:.95rem}
section.dark .feature p{color:var(--on-dark-muted)}

.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;align-items:center}
@media (max-width:860px){.split{grid-template-columns:1fr}}
.specs{list-style:none;padding:0;margin:16px 0;display:grid;gap:8px}
.specs li{border-left:3px solid var(--accent);padding:4px 12px;background:rgba(255,255,255,.04)}

.stat{font-size:2.6rem;font-weight:700;color:var(--accent);line-height:1}

/* prose */
.prose{max-width:780px}
.prose h2{margin-top:1.6em}

/* faq */
details{border:1px solid var(--line);border-radius:8px;padding:14px 18px;background:#fff;margin-bottom:10px}
details summary{cursor:pointer;font-weight:600}
details p{margin:10px 0 0;color:var(--muted)}

/* contact */
.contact-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px}
form .row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width:600px){form .row{grid-template-columns:1fr}}
label{display:block;font-size:.9rem;font-weight:600;margin:12px 0 4px}
input,textarea,select{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:8px;font:inherit;background:#fff}
input:focus,textarea:focus,select:focus{outline:2px solid var(--accent);border-color:transparent}
button.btn{border:0;cursor:pointer;font:inherit;font-weight:600;margin-top:16px}
.map{border:0;width:100%;aspect-ratio:16/10;border-radius:var(--radius)}

/* cta band */
.cta-band{background:var(--accent);color:#fff;padding:40px 0}
.cta-band .wrap{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.cta-band h2{margin:0;font-size:1.5rem}
.cta-band .btn{background:var(--ink);color:#fff}

/* footer */
.site-footer{background:var(--ink);color:var(--on-dark-muted);padding:48px 0 24px;font-size:.92rem}
.site-footer h2{color:var(--on-dark);font-size:1rem;margin:0 0 12px}
.site-footer a{color:var(--on-dark-muted);text-decoration:none}
.site-footer a:hover{color:var(--accent)}
.site-footer ul{list-style:none;padding:0;margin:0;display:grid;gap:6px}
.f-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px}
@media (max-width:760px){.f-grid{grid-template-columns:1fr}}
.copy{border-top:1px solid var(--ink-3);margin-top:32px;padding-top:16px;font-size:.82rem}
address{font-style:normal}

/* mega menu */
.nav{position:relative}
.menu .has-sub{position:static}
.menu .mega{display:none;position:absolute;top:100%;left:0;right:0;background:var(--ink-2);border-top:1px solid var(--ink-3);border-radius:0 0 12px 12px;box-shadow:0 14px 34px rgba(0,0,0,.4);padding:22px 24px;grid-template-columns:repeat(4,1fr);gap:24px}
.menu .has-sub:hover .mega,.menu .has-sub:focus-within .mega{display:grid}
.menu .mega a{padding:5px 0;font-size:.92rem;color:var(--on-dark-muted)}
.menu .mega a:hover{color:var(--accent)}
.menu .mega a.mh{color:var(--accent);font-weight:700;border-bottom:1px solid var(--ink-3);margin-bottom:6px;padding-bottom:8px;font-size:.95rem}
.menu .mega ul{list-style:none;margin:0;padding:0}
@media (max-width:860px){
  .menu .mega{display:block;position:static;box-shadow:none;background:transparent;border:0;padding:0 0 0 12px}
  .menu .mega ul{display:none}
  .menu .mega a.mh{border:0;margin:0;padding:8px 12px;color:var(--on-dark)}
}

/* product detail */
.pimg{background:#fff;border-radius:var(--radius);padding:24px;display:flex;align-items:center;justify-content:center;min-height:260px}
.pimg img{max-height:380px;width:auto;object-fit:contain}
.prose-wide{max-width:900px}
.spec-h{margin:28px 0 8px;font-size:1.05rem;color:var(--accent-2)}
table.spec{width:100%;border-collapse:collapse;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:#fff}
table.spec th,table.spec td{padding:11px 14px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line);font-size:.95rem}
table.spec th{width:34%;background:var(--paper-2);font-weight:600}
table.spec tr:last-child th,table.spec tr:last-child td{border-bottom:0}
@media (max-width:600px){table.spec th,table.spec td{display:block;width:100%}table.spec th{border-bottom:0;padding-bottom:2px}}
.note{background:var(--accent-soft);border-left:3px solid var(--accent);padding:10px 14px;border-radius:6px;margin-top:20px}
.src{color:var(--muted);font-size:.85rem;margin-top:20px}

/* news */
.news-media{padding:0;aspect-ratio:4/3;overflow:hidden;display:block}
.news-media img{width:100%;height:100%;object-fit:cover;max-height:none}
.card h3{overflow-wrap:anywhere}
#news-grid .card p{display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden}
.news-empty{grid-column:1/-1}

/* v3: uniform product images + stable mega menu */
.card .media img{width:100%;height:100%;object-fit:contain}
.card .media{padding:12px}
.pimg img{max-height:380px;width:100%;object-fit:contain}
@media (min-width:861px){
  .menu>li{align-self:stretch;display:flex;align-items:center}
  .menu .mega{display:grid;visibility:hidden;opacity:0;transition:opacity .15s ease .35s,visibility 0s linear .5s}
  .menu .has-sub:hover .mega,.menu .has-sub:focus-within .mega{visibility:visible;opacity:1;transition-delay:0s}
}
.menu .mega li.gl{color:#8a8178;font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;margin:12px 0 2px;padding:0}
.menu .mega li.gl:first-child{margin-top:0}

/* v4: mobile scale */
@media (max-width:600px){
  body{font-size:15px}
  section{padding:40px 0}
  .hero{padding:36px 0 44px}
  .card .media{aspect-ratio:16/9;padding:6px}
  .card .body{padding:14px;gap:4px}
  .card h3{font-size:1.02rem}
  .card p{font-size:.9rem}
  .g4,.g3,.g2,.grid{gap:14px}
  .pimg{min-height:0;padding:12px}
  .pimg img{max-height:230px}
  .sec-head{margin-bottom:22px}
  .btn{padding:11px 18px}
  .hero h1{font-size:1.7rem}
}

/* brand logo */
.brand-mark{flex:none}
.brand-txt{display:flex;flex-direction:column;line-height:1.05}
.brand-txt span{font-size:1.12rem;font-weight:700;letter-spacing:.05em}
.brand-txt small{font-size:.62rem;font-weight:600;letter-spacing:.42em;color:var(--on-dark-muted);margin-top:3px}

/* contact form dialog */
.cf-dialog{border:0;border-radius:14px;padding:28px 28px 24px;max-width:min(92vw,420px);text-align:center;box-shadow:0 24px 60px rgba(0,0,0,.35);color:#1a1a1a;background:#fff}
.cf-dialog::backdrop{background:rgba(10,10,10,.6)}
.cf-dialog .cf-ico{width:52px;height:52px;border-radius:50%;margin:0 auto 12px;display:grid;place-items:center;font-size:26px;font-weight:700;color:#fff;background:#d9661f}
.cf-dialog.err .cf-ico{background:#b3261e}
.cf-dialog h3{margin:0 0 8px;font-size:1.2rem}
.cf-dialog p{margin:0 0 18px;color:#555;line-height:1.6}

/* v5: mobile - smaller images and text in feature/split blocks */
@media (max-width:600px){
  .split{gap:18px}
  .split img{display:block;width:auto;max-width:78%;max-height:170px;margin:0 auto;object-fit:contain}
  .pimg{padding:8px}
  .pimg img{max-height:170px;width:auto;max-width:80%;margin:0 auto}
  .split h2,.split h3{font-size:1.25rem;line-height:1.3}
  .split p,.split .lead{font-size:.92rem;line-height:1.55}
  .eyebrow,.kicker{font-size:.72rem}
  .specs{gap:6px;margin:12px 0}
  .specs li{font-size:.88rem;padding:3px 10px;line-height:1.45}
  .stat{font-size:2.1rem}
  .feature h3{font-size:.98rem}
  .feature p{font-size:.88rem}
  .feature .ico{width:38px;height:38px}
  h2{font-size:1.35rem}
  .lead{font-size:.95rem}
}