@import"https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;1,400;1,600&family=Source+Serif+4:ital,opsz,wght@0,8..60,300;0,8..60,400;1,8..60,300;1,8..60,400&family=DM+Mono:wght@400;500&display=swap";:root{--bg: #F8F8F8;--paper: #FFFFFF;--navy: #0D1B2E;--ink: #0A0A0A;--ink2: #1a1a1a;--b100: #EBF4FD;--b200: #C3DEFA;--b300: #85B7EB;--b400: #378ADD;--b500: #185FA5;--b600: #0C447C;--b700: #042C53;--rule: #D6E4F0;--rule-navy: rgba(255,255,255,.1);--playfair: "Playfair Display", serif;--source: "Source Serif 4", serif;--mono: "DM Mono", monospace;--radius: 4px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth}body{background:var(--bg);color:var(--ink);font-family:var(--source);line-height:1.7;-webkit-font-smoothing:antialiased}::-webkit-scrollbar{width:4px}::-webkit-scrollbar-track{background:var(--bg)}::-webkit-scrollbar-thumb{background:var(--b200);border-radius:2px}h1,h2,h3,h4{font-family:var(--playfair);font-weight:600;line-height:1.15;color:var(--ink)}a{color:var(--b500);text-decoration:none;transition:color .2s}a:hover{color:var(--b700)}code{font-family:var(--mono);font-size:.85em;background:var(--b100);border:.5px solid var(--b200);padding:2px 6px;border-radius:3px;color:var(--b500)}pre{background:var(--b100);border:.5px solid var(--b200);border-radius:var(--radius);padding:1.25rem 1.5rem;overflow-x:auto;margin:1.5rem 0}pre code{background:none;border:none;padding:0;font-size:.875rem;color:var(--b600)}blockquote{border-left:2px solid var(--b400);padding:.75rem 0 .75rem 1.25rem;margin:1.5rem 0;font-family:var(--playfair);font-size:1.05rem;font-style:italic;color:var(--ink);background:var(--b100);border-radius:0 var(--radius) var(--radius) 0}hr{border:none;border-top:.5px solid var(--rule);margin:2rem 0}img{max-width:100%;border-radius:var(--radius);border:.5px solid var(--rule)}.container{max-width:760px;margin:0 auto;padding:0 1.75rem}.container--wide{max-width:1100px;margin:0 auto;padding:0 1.75rem}.tag{font-family:var(--mono);font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;padding:2px 8px;border-radius:10px;border:.5px solid var(--b200);background:var(--b100);color:var(--b400);display:inline-block;white-space:nowrap}.tag--outline{background:transparent;color:var(--b300);border-color:var(--rule)}.btn{font-family:var(--mono);font-size:.75rem;letter-spacing:.06em;padding:7px 18px;border-radius:var(--radius);border:.5px solid var(--b400);background:transparent;color:var(--b500);cursor:pointer;transition:all .2s;display:inline-block;text-transform:uppercase}.btn:hover{background:var(--b500);color:var(--paper);border-color:var(--b500)}.img-frame{width:100%;background:var(--b100);border:.5px solid var(--b200);border-radius:var(--radius);overflow:hidden;display:flex;align-items:center;justify-content:center}.img-frame img{width:100%;height:100%;object-fit:cover;border:none;border-radius:0}.img-frame__placeholder{display:flex;flex-direction:column;align-items:center;gap:8px}.img-frame__placeholder span{font-family:var(--mono);font-size:.68rem;color:var(--b300);letter-spacing:.06em}.rule-thick{height:2.5px;background:var(--navy)}.rule-thin{height:.5px;background:var(--rule)}.section-label{font-family:var(--mono);font-size:.68rem;color:var(--b500);text-transform:uppercase;letter-spacing:.15em;white-space:nowrap}html.lang-en [data-lang=vn],html.lang-vn [data-lang=en]{display:none}@keyframes fadeUp{0%{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}.fade-up{animation:fadeUp .45s ease both}.fade-up-1{animation:fadeUp .45s .08s ease both}.fade-up-2{animation:fadeUp .45s .16s ease both}.fade-up-3{animation:fadeUp .45s .24s ease both}.nav[data-astro-cid-5hce7sga]{background:var(--navy);position:sticky;top:0;z-index:100}.nav__masthead[data-astro-cid-5hce7sga]{display:flex;align-items:center;justify-content:space-between;padding:14px 1.75rem 12px;border-bottom:.5px solid var(--rule-navy)}.nav__masthead-spacer[data-astro-cid-5hce7sga]{width:80px}.nav__masthead-center[data-astro-cid-5hce7sga]{text-align:center;flex:1}.nav__logo[data-astro-cid-5hce7sga]{font-family:var(--playfair);font-size:clamp(1.8rem,4vw,2.6rem);font-weight:600;color:#fff;letter-spacing:-.02em;line-height:1;display:block}.nav__logo[data-astro-cid-5hce7sga]:hover{color:#fff}.nav__tagline[data-astro-cid-5hce7sga]{font-family:var(--mono);font-size:.68rem;color:var(--b300);letter-spacing:.18em;text-transform:uppercase;margin-top:4px}.lang-switcher[data-astro-cid-5hce7sga]{display:flex;align-items:center;gap:0;width:80px;justify-content:flex-end;flex-shrink:0}.lang-btn[data-astro-cid-5hce7sga]{font-family:var(--mono);font-size:.75rem;font-weight:500;background:none;border:none;cursor:pointer;padding:2px 4px;letter-spacing:.04em;transition:color .15s}.lang-sep[data-astro-cid-5hce7sga]{font-family:var(--mono);font-size:.75rem;color:#fff3;padding:0 1px;user-select:none}.lang-btn--en[data-astro-cid-5hce7sga]{color:#fff;font-weight:700}.lang-btn--vn[data-astro-cid-5hce7sga]{color:#ffffff4d}.lang-switcher[data-astro-cid-5hce7sga].vn-active .lang-btn--en[data-astro-cid-5hce7sga]{color:#ffffff4d;font-weight:500}.lang-switcher[data-astro-cid-5hce7sga].vn-active .lang-btn--vn[data-astro-cid-5hce7sga]{color:#fff;font-weight:700}.nav__links[data-astro-cid-5hce7sga]{display:flex;align-items:center;justify-content:center;flex-wrap:wrap}.nav__links[data-astro-cid-5hce7sga] a[data-astro-cid-5hce7sga]{font-family:var(--mono);font-size:.68rem;color:var(--b300);letter-spacing:.08em;text-transform:uppercase;padding:8px 12px;border-right:.5px solid var(--rule-navy);transition:background .15s,color .15s}.nav__links[data-astro-cid-5hce7sga] a[data-astro-cid-5hce7sga]:first-child{border-left:.5px solid var(--rule-navy)}.nav__links[data-astro-cid-5hce7sga] a[data-astro-cid-5hce7sga]:hover{background:#ffffff0f;color:#fff}.footer[data-astro-cid-5hce7sga]{background:var(--navy);padding:1.25rem 0;margin-top:4rem}.footer__inner[data-astro-cid-5hce7sga]{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:1rem}.footer__name[data-astro-cid-5hce7sga]{font-family:var(--playfair);font-size:1.1rem;font-weight:600;color:#fff}.footer__links[data-astro-cid-5hce7sga]{display:flex;gap:1.25rem}.footer__links[data-astro-cid-5hce7sga] a[data-astro-cid-5hce7sga]{font-family:var(--mono);font-size:.68rem;color:var(--b300);text-transform:uppercase;letter-spacing:.08em}.footer__links[data-astro-cid-5hce7sga] a[data-astro-cid-5hce7sga]:hover{color:#fff}.footer__copy[data-astro-cid-5hce7sga]{font-family:var(--mono);font-size:.68rem;color:#ffffff4d;letter-spacing:.06em}@media (max-width: 600px){.nav__masthead-spacer[data-astro-cid-5hce7sga]{display:none}.nav__links[data-astro-cid-5hce7sga] a[data-astro-cid-5hce7sga]{padding:7px 9px;font-size:.62rem}.footer__copy[data-astro-cid-5hce7sga]{display:none}}