/* KSBC Web02 — Shared styles for sub-pages */
*{margin:0;padding:0;box-sizing:border-box;}
:root{
  --bg:#F8F7F4;--bg2:#F0EEE9;--white:#FFFFFF;
  --ink:#18181B;--ink2:#3F3F46;--muted:#71717A;--border:#E4E2DC;
  --navy:#1E3A5F;--navy2:#2A4F7C;--gold:#9B7E4A;--nav-h:56px;
}
html{scroll-behavior:smooth;}
body{font-family:'Inter','Sarabun',sans-serif;background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;}
#nav{position:fixed;top:0;left:0;right:0;height:var(--nav-h);z-index:9000;background:rgba(248,247,244,.92);backdrop-filter:blur(14px);border-bottom:1px solid var(--border);}
.nav-inner{max-width:1280px;margin:0 auto;padding:0 40px;height:100%;display:flex;align-items:center;}
.nav-logo{display:flex;align-items:center;gap:8px;text-decoration:none;flex-shrink:0;}
.nav-logo img{height:24px;width:24px;border-radius:50%;}
.nav-logo-text{font-size:13px;font-weight:600;color:var(--ink);}
.nav-links{display:flex;align-items:center;gap:1px;list-style:none;flex:1;justify-content:center;}
.nav-links a{font-size:12.5px;color:var(--muted);text-decoration:none;padding:5px 12px;border-radius:5px;transition:all .15s;}
.nav-links a:hover,.nav-links a.active{color:var(--ink);background:var(--bg2);}
/* Grouped nav. Eight flat top-level links had outgrown the bar, so related
   pages sit under four headings. Hover opens on desktop; the panel is bridged
   to the trigger by the parent's padding so the pointer never crosses a gap
   and closes it mid-move. Keyboard users get the same panel via :focus-within. */
.nav-grp{position:relative;}
.nav-grp>a{display:inline-flex;align-items:center;gap:5px;cursor:pointer;}
.nav-grp>a:after{content:"";width:5px;height:5px;border-right:1.4px solid currentColor;border-bottom:1.4px solid currentColor;transform:rotate(45deg) translateY(-1px);opacity:.55;transition:transform .15s;}
.nav-grp:hover>a:after{transform:rotate(225deg) translateY(-3px);}
.nav-sub{position:absolute;top:100%;left:50%;transform:translateX(-50%);padding-top:10px;min-width:206px;display:none;z-index:9000;}
.nav-grp:hover .nav-sub{display:block;}
.nav-grp>a:focus-visible+.nav-sub,.nav-sub:focus-within{display:block;}
.nav-sub-inner{background:var(--white);border:1px solid var(--border);border-radius:9px;box-shadow:0 12px 30px rgba(15,23,42,.12);padding:6px;overflow:hidden;}
.nav-sub-inner a{display:block;font-size:12.5px;color:var(--ink2);padding:9px 13px;border-radius:6px;white-space:nowrap;}
.nav-sub-inner a:hover,.nav-sub-inner a.active{background:var(--bg2);color:var(--ink);}
/* Mobile keeps a single flat list — nested accordions on a phone add taps
   without adding clarity — but gains small group headings for scanning. */
.mob-head{font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);padding:22px 0 4px;}
.nav-r{display:flex;align-items:center;gap:8px;margin-left:auto;}
.btn-lang{font-size:11.5px;font-weight:500;color:var(--muted);background:none;border:1px solid var(--border);padding:5px 11px;border-radius:6px;cursor:pointer;font-family:inherit;transition:all .15s;}
.btn-lang:hover{color:var(--ink);border-color:var(--muted);}
.lang-drop{position:relative;}
.lang-opts{position:absolute;top:calc(100% + 6px);right:0;background:var(--white);border:1px solid var(--border);border-radius:8px;box-shadow:0 8px 24px rgba(0,0,0,.1);min-width:148px;overflow:hidden;z-index:9999;display:none;flex-direction:column;}
.lang-drop.open .lang-opts{display:flex;}
.lang-opt{font-size:12.5px;font-weight:400;color:var(--ink2);background:none;border:none;padding:9px 16px;text-align:left;cursor:pointer;font-family:inherit;transition:background .15s;white-space:nowrap;}
.lang-opt:hover{background:var(--bg2);}
.lang-opt.active{font-weight:600;color:var(--navy);}
body.lang-th{font-family:'Sarabun',sans-serif;}
body.lang-zh,body.lang-ja{font-family:'Inter',system-ui,sans-serif;}
body.lang-th .page-title,body.lang-th .page-title em,
body.lang-th h1,body.lang-th h2,body.lang-th h3,
body.lang-th .hero-line,body.lang-th .about-text h2,
body.lang-th .t-name,body.lang-th .t-name-sub,body.lang-th .about-text h2,
body.lang-th [style*="Times New Roman"]{
  font-family:'Sarabun',sans-serif!important;font-weight:700;letter-spacing:0;
}
body.lang-zh .page-title,body.lang-zh .page-title em,
body.lang-zh h1,body.lang-zh h2,body.lang-zh h3,
body.lang-ja .page-title,body.lang-ja .page-title em,
body.lang-ja h1,body.lang-ja h2,body.lang-ja h3{
  font-family:'Inter',system-ui,sans-serif;font-weight:700;letter-spacing:-.02em;
}
.btn-contact{font-size:12.5px;font-weight:500;padding:7px 16px;border-radius:6px;background:var(--navy);color:#fff;text-decoration:none;transition:background .2s;}
.btn-contact:hover{background:var(--navy2);}
.page-hero{padding:120px 0 72px;border-bottom:1px solid var(--border);}
.page-hero-inner{max-width:1280px;margin:0 auto;padding:0 80px;}
.eyebrow{font-size:11px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--gold);display:block;margin-bottom:12px;}
.page-title{font-family:'Times New Roman',Georgia,serif;font-size:clamp(40px,5vw,68px);font-weight:400;letter-spacing:-.02em;line-height:1.1;color:var(--ink);}
.page-title em{font-style:italic;color:var(--navy);}
.rule{width:28px;height:2px;background:var(--gold);margin:20px 0 0;}
.section{padding:80px 0;}
.inner{max-width:1280px;margin:0 auto;padding:0 80px;}
.btn-p{font-size:13px;font-weight:500;padding:11px 22px;border-radius:7px;background:var(--navy);color:#fff;text-decoration:none;display:inline-block;transition:background .2s;}
.btn-p:hover{background:var(--navy2);}
.btn-s{font-size:13px;font-weight:500;padding:10px 22px;border-radius:7px;background:transparent;color:var(--ink);border:1px solid var(--border);text-decoration:none;display:inline-block;transition:all .2s;}
.btn-s:hover{background:var(--bg2);}
footer{background:var(--ink);color:rgba(255,255,255,.4);padding:48px 0 28px;}
.footer-inner{max-width:1280px;margin:0 auto;padding:0 80px;}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.07);}
.f-brand{font-size:14px;font-weight:600;color:#fff;margin-bottom:8px;}
.f-tag{font-size:13px;line-height:1.7;color:rgba(255,255,255,.3);}
.f-col-h{font-size:10.5px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:rgba(255,255,255,.22);margin-bottom:12px;}
.f-links{display:flex;flex-direction:column;gap:9px;}
.f-links a{font-size:13px;color:rgba(255,255,255,.38);text-decoration:none;transition:color .15s;}
.f-links a:hover{color:#fff;}
.footer-bot{display:flex;justify-content:space-between;font-size:11.5px;padding-top:20px;}
@media(max-width:1024px){.inner,.page-hero-inner,.footer-inner{padding-left:40px;padding-right:40px;}.footer-top{grid-template-columns:1fr 1fr;}}
@media(max-width:640px){
  .nav-links{display:none;}
  .footer-top{grid-template-columns:1fr;}
  /* Hide contact button on mobile — it lives in the mobile menu already */
  .btn-contact{display:none;}
}
@media(max-width:400px){
  /* On very small phones hide the company name text too */
  .nav-logo-text{display:none;}
}
/* Mobile burger & menu */
.nav-burger{display:none;flex-direction:column;justify-content:center;gap:5px;background:none;border:none;cursor:pointer;padding:8px;margin-right:4px;}
.nav-burger span{display:block;width:22px;height:2px;background:var(--ink);border-radius:2px;transition:all .25s;}
@media(max-width:640px){.nav-burger{display:flex;}}
#mob-menu{display:none;position:fixed;inset:0;top:var(--nav-h);background:rgba(248,247,244,.98);backdrop-filter:blur(8px);z-index:8998;padding:24px 32px;flex-direction:column;overflow-y:auto;}
#mob-menu.open{display:flex;}
.mob-link{font-size:20px;font-weight:500;color:var(--ink);text-decoration:none;padding:18px 0;border-bottom:1px solid var(--border);}
.mob-cta{margin-top:28px;padding:14px;background:var(--navy);color:#fff;border-radius:8px;text-align:center;font-size:15px;font-weight:500;text-decoration:none;}
@media(max-width:640px){.inner,.page-hero-inner{padding-left:24px;padding-right:24px;}.footer-inner{padding-left:24px;padding-right:24px;}}