/* Tessera Brand v3 · October 1, 2026 · exact master artwork and screen palette. */
@font-face{font-family:Inter;src:url('/assets/brand-v3/Inter-Regular.woff2') format('woff2');font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:Inter;src:url('/assets/brand-v3/Inter-Bold.woff2') format('woff2');font-weight:700;font-style:normal;font-display:swap}
@font-face{font-family:'Noto Sans Thai';src:url('/assets/brand-v3/NotoSansThai-Regular.woff2') format('woff2');font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:'Noto Sans Thai';src:url('/assets/brand-v3/NotoSansThai-Bold.woff2') format('woff2');font-weight:700;font-style:normal;font-display:swap}
:root{--t-navy:#0F2440;--t-steel:#5F7EA1;--t-sage:#8FA46E;--t-gold:#C69A4B;--t-green:#3F6B4E;--t-charcoal:#2A2F38;--t-gray:#6B7280;--t-pale:#B9C4D6;--t-rule:#D6D9DE;--t-tint:#EEF1F4;--t-white:#FFF;--t-font:Inter,'Noto Sans Thai',Arial,sans-serif;--t-width:1240px}
*{box-sizing:border-box}html{scroll-behavior:auto}body{margin:0;background:var(--t-white);color:var(--t-charcoal);font-family:var(--t-font);font-synthesis:none;font-size:16px;line-height:1.6;font-variant-numeric:lining-nums tabular-nums;-webkit-font-smoothing:antialiased}button,input,select,textarea{font:inherit}button,a,input,select,textarea,summary{-webkit-tap-highlight-color:transparent}img{max-width:100%;height:auto}h1,h2,h3,h4,h5{font-family:var(--t-font);font-weight:700;color:var(--t-navy)}a{color:var(--t-navy);text-underline-offset:.2em}a:hover{text-decoration-thickness:2px}strong,b{font-weight:700}::selection{background:var(--t-pale);color:var(--t-navy)}:focus-visible{outline:3px solid var(--t-navy);outline-offset:4px}.skip{position:absolute;left:-9999px;top:12px;z-index:300;background:var(--t-navy);color:white;padding:12px 20px}.skip:focus{left:12px}

.tessera-header{background:white;position:relative;z-index:10}.tessera-header-inner{max-width:var(--t-width);margin:auto;min-height:96px;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:8px 32px}.tessera-brand{flex:0 0 auto;display:block;line-height:0}.tessera-brand img{display:block;width:205px;height:auto}.tessera-nav{display:flex;align-items:center;gap:24px}.tessera-nav a{font-size:14px;color:var(--t-gray);text-decoration:none;line-height:1.3;padding:14px 0;white-space:nowrap}.tessera-nav a:hover,.tessera-nav a[aria-current]{color:var(--t-navy)}.tessera-nav a[aria-current]{font-weight:700}.tessera-nav .tessera-nav-contact{color:white;background:var(--t-navy);padding:14px 20px;font-weight:700}.tessera-nav .tessera-nav-contact:hover{background:var(--t-green);color:white}.tessera-masthead-band{height:22px;overflow:hidden;max-width:var(--t-width);margin:0 auto}.tessera-masthead-band img{display:block;width:100%;height:100%;object-fit:cover;object-position:center}.mobile-menu{display:none}
.tessera-footer{background:white;border-top:1px solid var(--t-rule);color:var(--t-gray);font-size:13px;line-height:1.6}.tessera-footer a{color:var(--t-gray);text-decoration:none}.tessera-footer a:hover{color:var(--t-navy);text-decoration:underline}.tessera-footer p{margin:0;font-size:13px;line-height:1.6}.tessera-footer-top{max-width:var(--t-width);margin:auto;display:flex;align-items:center;gap:30px;padding:22px 32px 15px}.footer-brand{flex-shrink:0;line-height:0}.footer-brand img{display:block;width:160px;height:auto;margin-left:-8px}.tessera-contact-email{margin-left:auto;overflow-wrap:anywhere}.tessera-footer-bottom{max-width:calc(var(--t-width) - 64px);margin:auto;border-top:1px solid var(--t-rule);padding:18px 0 24px;display:flex;gap:12px 30px;flex-wrap:wrap;justify-content:space-between}.tessera-footer-bottom nav{display:flex;gap:22px}.tessera-footer-bottom .footer-notice{flex-basis:100%;font-size:12px}
.button{display:inline-flex;align-items:center;justify-content:center;gap:16px;min-height:48px;padding:13px 22px;background:var(--t-navy);border:1px solid var(--t-navy);color:white!important;text-decoration:none;font-size:14px;font-weight:700;line-height:1.5}.button:hover{background:var(--t-green);border-color:var(--t-green);color:white!important}.button-secondary{background:white;color:var(--t-navy)!important}.button-secondary:hover{background:var(--t-tint);border-color:var(--t-navy);color:var(--t-navy)!important}.page-actions{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 0}.kicker{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:var(--t-gray)}
@media(max-width:1000px){.tessera-header-inner{padding:8px 24px;gap:18px}.tessera-nav{gap:18px}.tessera-nav a{font-size:13px}.tessera-brand img{width:190px}.tessera-footer-top{gap:20px}.tessera-footer-top p{max-width:25ch}}
@media(max-width:800px){.tessera-header-inner{min-height:76px;padding:4px 20px;gap:15px}.tessera-brand img{width:175px}.desktop-nav{display:none}.mobile-menu{display:block;margin-left:auto}.mobile-menu summary{display:flex;align-items:center;gap:12px;list-style:none;cursor:pointer;padding:12px 0 12px 16px;min-height:44px;color:var(--t-navy);font-size:14px;font-weight:700}.mobile-menu summary::-webkit-details-marker{display:none}.menu-symbol{width:18px;height:12px;border-top:2px solid currentColor;border-bottom:2px solid currentColor;position:relative}.menu-symbol::after{content:'';position:absolute;top:3px;left:0;width:18px;border-top:2px solid currentColor}.mobile-menu[open] .menu-symbol{border:0;height:18px}.mobile-menu[open] .menu-symbol::before,.mobile-menu[open] .menu-symbol::after{content:'';position:absolute;top:8px;left:0;width:18px;border-top:2px solid currentColor;transform:rotate(45deg)}.mobile-menu[open] .menu-symbol::after{transform:rotate(-45deg)}.mobile-menu nav{position:absolute;left:0;right:0;top:76px;padding:12px 20px 20px;background:white;border-bottom:2px solid var(--t-navy);box-shadow:0 8px 14px #0f244012;display:grid;gap:0;z-index:12}.mobile-menu nav a{display:block;padding:13px 10px;min-height:46px;border-top:1px solid var(--t-rule);font-size:15px}.mobile-menu nav .tessera-nav-contact{background:white;color:var(--t-navy);padding:13px 10px;font-weight:700}.mobile-menu nav a[aria-current]{border-left:3px solid var(--t-gold);background:var(--t-tint)}.tessera-masthead-band{height:16px}.tessera-footer-top{padding:20px;display:grid;grid-template-columns:1fr;gap:3px}.tessera-footer-top p{max-width:none}.tessera-contact-email{margin:5px 0 0}.footer-brand img{width:140px;margin-top:-5px}.tessera-footer-bottom{margin:0 20px;max-width:none;padding:16px 0 22px;display:grid;gap:12px}.tessera-footer-bottom nav{gap:20px;flex-wrap:wrap}.tessera-footer-bottom nav a{min-height:32px;display:flex;align-items:center}.tessera-footer-bottom .footer-notice{max-width:50ch}}
@media print{.tessera-header,.tessera-footer{display:none!important}body{background:white;color:#2A2F38}}
.tessera-nav .tessera-nav-contact[aria-current]{color:white}
@media(max-width:800px){.mobile-menu nav .tessera-nav-contact[aria-current]{color:var(--t-navy)}}