:root{--bg:#F3F5FA;--surface:#FFFFFF;--soft:#E7EAF6;--line:#DCE1EE;--ink:#111633;--muted:#4A5270;--sun:#FFA62B;--on-sun:#111633;--violet:#4B47C8;--violet-soft:#E6E5FB;--night:#111633;--night-2:#1B2149;--on-night:#F3F5FA;--on-night-muted:#B5BCD6;--term:#3DDC97;--display:"Bai Jamjuree","IBM Plex Sans Thai","Noto Sans Thai",system-ui,sans-serif;--body:"IBM Plex Sans Thai","Noto Sans Thai",system-ui,sans-serif;--mono:"IBM Plex Mono",ui-monospace,"Cascadia Mono",Consolas,monospace;color-scheme:light}@media(prefers-color-scheme:dark){:root{--bg:#0D1126;--surface:#151A36;--soft:#1C2247;--line:#2A3160;--ink:#E8EBF5;--muted:#A3AAC6;--sun:#FFB547;--on-sun:#0D1126;--violet:#A7A4FF;--violet-soft:#25295A;--night:#080B1C;--night-2:#141937;color-scheme:dark}}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.7}img{max-width:100%}[hidden]{display:none!important}a{color:var(--violet)}h1,h2,h3{font-family:var(--display);line-height:1.2;text-wrap:balance;margin:0;font-weight:700}p{margin:0}.wrap{max-width:1160px;margin:0 auto;padding-inline:16px}@media(min-width:700px){.wrap{padding-inline:24px}}:focus-visible{outline:3px solid var(--sun);outline-offset:2px;border-radius:6px}.eyebrow{font-family:var(--mono);font-size:13px;font-weight:500;color:var(--violet);letter-spacing:.4px}.lead{color:var(--muted);font-size:18px;max-width:36em}.note{font-size:14px;color:var(--muted)}.row{display:flex;flex-wrap:wrap;gap:12px}.band{padding-block:64px}section{scroll-margin-top:84px}.sec-head{display:flex;flex-direction:column;gap:10px;margin-bottom:28px;max-width:720px}.sec-head h2{font-size:clamp(28px,4vw,40px)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:10px 22px;border-radius:12px;text-decoration:none;border:2px solid transparent;cursor:pointer;font:inherit;font-weight:700}.btn-sun{background:var(--sun);color:var(--on-sun)}.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}.btn-ghost-night{background:transparent;color:var(--on-night);border-color:var(--on-night-muted)}.btn:hover{filter:brightness(1.06)}.page-title{padding-block:48px 8px;display:flex;flex-direction:column;gap:10px}.page-title h1{font-size:clamp(32px,5vw,46px)}.crumb{font-size:14px;color:var(--muted)}.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}.site-head{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:var(--night);color:var(--on-night)}.head-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-block:10px}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--on-night);font-family:var(--mono);font-weight:600;font-size:20px}.brand svg{width:34px;height:34px;flex:none}.brand b{color:var(--sun);font-weight:600}.main-nav{display:flex;gap:4px 22px;flex-wrap:wrap}.main-nav a{color:var(--on-night);text-decoration:none;padding:10px 2px;font-weight:500}.main-nav a:hover,.main-nav a[aria-current=page]{color:var(--sun)}.head-end{display:flex;align-items:center;gap:12px}.lang-switch{color:var(--on-night);text-decoration:none;font-weight:600;font-size:14px;padding:8px 12px;border:1px solid var(--night-2);border-radius:10px;min-height:40px;display:inline-flex;align-items:center}.lang-switch:hover{border-color:var(--sun);color:var(--sun)}.menu-btn{display:none;width:46px;height:46px;border-radius:12px;border:1px solid var(--night-2);background:var(--night-2);color:var(--on-night);cursor:pointer}@media(max-width:820px){.menu-btn{display:inline-flex;align-items:center;justify-content:center}.head-cta{display:none}.main-nav{display:none;position:absolute;left:0;right:0;top:100%;background:var(--night);flex-direction:column;padding:8px 16px 16px}.site-head.open .main-nav{display:flex}.main-nav a{padding:12px 4px;border-bottom:1px solid var(--night-2)}}.hero{background:var(--night);color:var(--on-night);position:relative;overflow:hidden}.hero-grid{display:flex;flex-wrap:wrap;gap:40px;align-items:center;padding-block:64px 72px;position:relative;z-index:1}.hero-copy{flex:1 1 440px;min-width:0;display:flex;flex-direction:column;gap:18px}.hero .eyebrow{color:var(--sun)}.hero h1{font-size:clamp(36px,6vw,58px)}.hero h1 .sunword{color:var(--sun)}.nw{white-space:nowrap}.hero .lead{color:var(--on-night-muted)}.hero-art{flex:1 1 380px;min-width:0;position:relative;min-height:280px;display:flex;align-items:center;justify-content:center}.sun{position:absolute;width:260px;height:260px;border-radius:50%;background:var(--sun);bottom:-150px;right:6%;opacity:.95}.horizon{position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--sun);opacity:.6}.term{position:relative;width:100%;max-width:440px;background:#0a0d20;border:1px solid #2A3160;border-radius:14px;box-shadow:0 18px 40px #00000059;font-family:var(--mono);font-size:14px;color:#d7dcf0;overflow:hidden}.term-bar{display:flex;gap:6px;padding:10px 12px;background:#141937}.term-bar i{width:11px;height:11px;border-radius:50%;background:#3a4175}.term-bar i:first-child{background:#ff6b5e}.term-bar i:nth-child(2){background:#ffb547}.term-bar i:nth-child(3){background:#3ddc97}.term pre{margin:0;padding:16px 18px 18px;white-space:pre-wrap;line-height:1.75}.term .p{color:var(--term)}.term .k{color:#ffb547}.term .c{color:#8f97bd}.cursor{display:inline-block;width:9px;height:17px;background:var(--term);vertical-align:-3px}@media(prefers-reduced-motion:no-preference){.cursor{animation:blink 1.1s steps(1) infinite}@keyframes blink{50%{opacity:0}}}.services{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr));gap:18px}.svc{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:24px;display:flex;flex-direction:column;gap:10px}.svc .ico{width:48px;height:48px;border-radius:12px;background:var(--violet-soft);color:var(--violet);display:flex;align-items:center;justify-content:center}.svc h3{font-size:21px}.svc p{color:var(--muted)}.svc ul{margin:4px 0 0;padding:0;list-style:none;display:flex;flex-wrap:wrap;gap:6px}.svc li{font-family:var(--mono);font-size:12px;background:var(--soft);color:var(--ink);padding:3px 9px;border-radius:999px}.work{background:var(--surface);border-block:1px solid var(--line)}.works{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,320px),1fr));gap:18px}.wcard{border:1px solid var(--line);border-radius:18px;padding:22px;display:flex;flex-direction:column;gap:10px;background:var(--bg)}.wcard .kind{font-family:var(--mono);font-size:12px;color:var(--violet)}.wcard h3{font-size:22px}.wcard p{color:var(--muted)}.wcard .stack{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto}.wcard .stack span{font-family:var(--mono);font-size:12px;border:1px solid var(--line);padding:2px 8px;border-radius:999px}.wcard a{font-weight:600}.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,230px),1fr));gap:18px;counter-reset:s}.steps li{counter-increment:s;background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:22px;display:flex;flex-direction:column;gap:8px}.steps li:before{content:"0" counter(s);font-family:var(--mono);font-weight:600;color:var(--violet)}.steps b{font-family:var(--display);font-size:19px}.steps span{color:var(--muted)}.about{display:flex;flex-wrap:wrap;gap:36px;align-items:flex-start}.about-copy{flex:1 1 420px;min-width:0;display:flex;flex-direction:column;gap:14px}.about-copy h2{font-size:clamp(28px,4vw,38px)}.facts{flex:1 1 300px;min-width:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.facts div{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:16px}.facts b{display:block;font-family:var(--display);font-size:26px;color:var(--violet)}.facts span{font-size:14px;color:var(--muted)}.cta{background:var(--night);color:var(--on-night);border-radius:24px;padding:36px 28px;display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between}.cta h2{font-size:clamp(26px,3.6vw,34px)}.cta p{color:var(--on-night-muted)}.cta ul{margin:10px 0 0;padding-left:1.2em;color:var(--on-night-muted)}footer{background:var(--night);color:var(--on-night-muted);padding-block:44px}.foot-grid{display:flex;flex-wrap:wrap;gap:28px;justify-content:space-between}.foot-grid>div{flex:1 1 240px;min-width:0;display:flex;flex-direction:column;gap:8px}.foot-grid b{font-family:var(--mono);color:var(--on-night);font-size:20px}.foot-grid a{color:var(--on-night)}.contact-line{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.contact-line span{color:var(--on-night)}.copy-btn{min-height:36px;padding:4px 12px;border-radius:10px;border:1px solid var(--on-night-muted);background:transparent;color:var(--on-night);font:inherit;font-size:14px;cursor:pointer}.legal{flex-basis:100%;border-top:1px solid var(--night-2);padding-top:16px;font-size:13px}.posts{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr));gap:18px}.post{background:var(--surface);border-radius:18px;overflow:hidden;display:flex;flex-direction:column;text-decoration:none;color:inherit;border:1px solid var(--line)}.post:hover{border-color:var(--violet)}.post .pbody{padding:20px;display:flex;flex-direction:column;gap:8px;flex:1}.meta-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center}.post .tag{font-family:var(--mono);font-size:12px;font-weight:600;color:var(--violet)}.post h3{font-size:20px}.post .desc{color:var(--muted);font-size:15px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.post .read{font-size:14px;color:var(--muted);margin-top:auto}.lvl{font-size:12px;font-weight:700;padding:2px 10px;border-radius:999px;background:var(--soft);color:var(--ink)}.lvl-intermediate{background:var(--violet-soft);color:var(--violet)}.lvl-advanced{background:var(--sun);color:var(--on-sun)}.paths{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,320px),1fr));gap:16px}.path{background:var(--night);color:var(--on-night);border-radius:18px;padding:22px;text-decoration:none;display:flex;flex-direction:column;gap:8px}.path .eyebrow{color:var(--sun)}.path b{font-family:var(--display);font-size:22px}.path .note{color:var(--on-night-muted)}.path ol{margin:4px 0 0;padding-left:1.3em;color:var(--on-night-muted);font-size:15px}.path .go{margin-top:6px;font-weight:700;color:var(--sun)}.filters{display:flex;flex-direction:column;gap:12px}.search{display:flex;align-items:center;gap:10px;background:var(--surface);border:2px solid var(--line);border-radius:12px;padding:4px 14px;max-width:520px;color:var(--muted)}.search:focus-within{border-color:var(--violet)}.search input{flex:1;min-width:0;border:0;background:transparent;font:inherit;font-size:17px;color:var(--ink);padding:8px 0;outline:none}.chips{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px}.fchip{flex:none;min-height:40px;border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:10px;padding:4px 14px;font:inherit;font-weight:600;cursor:pointer}.fchip span{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}.fchip.small{min-height:36px;font-size:14px}.fchip[aria-pressed=true]{background:var(--ink);border-color:var(--ink);color:var(--bg)}.fchip[aria-pressed=true] span{color:var(--bg)}.empty{background:var(--surface);border-radius:14px;padding:20px;color:var(--muted)}.cat-links{display:flex;flex-wrap:wrap;gap:8px 16px;align-items:center;font-size:15px}.lessons{list-style:none;display:flex;flex-direction:column;gap:12px;margin-block:0}.lessons a{display:flex;align-items:center;gap:16px;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:16px 18px;text-decoration:none;color:var(--ink)}.lessons .num{flex:none;width:40px;height:40px;border-radius:50%;background:var(--sun);color:var(--on-sun);display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-weight:700}.lessons .ltext{flex:1;min-width:0;display:flex;flex-direction:column}.lessons b{font-family:var(--display);font-size:18px}.article{padding-bottom:24px}.art-head{display:flex;flex-direction:column;gap:12px;padding-block:40px 24px;max-width:820px}.art-head h1{font-size:clamp(30px,5vw,44px)}.art-meta{display:flex;flex-wrap:wrap;gap:8px 16px;align-items:center;font-size:14px;color:var(--muted)}.art-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:28px}@media(min-width:1000px){.art-grid{grid-template-columns:240px minmax(0,1fr)}.toc{position:sticky;top:90px}}.toc{background:var(--surface);border-radius:16px;padding:16px 18px;border:1px solid var(--line);display:flex;flex-direction:column;gap:8px}.toc ol{margin:0;padding-left:1.2em;display:flex;flex-direction:column;gap:6px;font-size:15px}.toc a{text-decoration:none;color:var(--ink)}.toc a:hover{color:var(--violet)}.art-main{display:flex;flex-direction:column;gap:24px;min-width:0;max-width:74ch}.takeaways{background:var(--violet-soft);border-radius:16px;padding:18px 20px;display:flex;flex-direction:column;gap:8px}.takeaways ul{margin:0;padding-left:1.2em;display:flex;flex-direction:column;gap:4px}.prose{display:flex;flex-direction:column;gap:16px;font-size:17px;line-height:1.85}.prose h2{font-size:26px;margin-top:14px;scroll-margin-top:90px}.prose h3{font-size:20px;margin-top:6px}.prose ul,.prose ol{margin:0;padding-left:1.3em;display:flex;flex-direction:column;gap:6px}.prose blockquote{margin:0;background:var(--soft);border-radius:12px;padding:12px 18px}.prose table{border-collapse:collapse;width:100%;font-size:15px;display:block;overflow-x:auto}.prose th,.prose td{border-bottom:1px solid var(--line);padding:8px 10px;text-align:left}.prose th{background:var(--soft)}.prose :not(pre)>code{font-family:var(--mono);font-size:.88em;background:var(--soft);padding:1px 6px;border-radius:6px}.prose pre{font-family:var(--mono);font-size:14px;line-height:1.6;padding:14px 16px;border-radius:12px;overflow-x:auto;margin:0}.faq{display:flex;flex-direction:column;gap:10px}.faq h2{font-size:24px}.faq details{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:12px 16px}.faq summary{font-weight:600;cursor:pointer}.faq details p{margin-top:8px;color:var(--muted)}.pager{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,240px),1fr));gap:12px}.pager a{display:flex;flex-direction:column;gap:2px;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:14px 16px;text-decoration:none;color:var(--ink)}.pager a.next{text-align:right}.status{font-size:14px;font-weight:600;color:var(--violet)}
