/* AIT Brain Lab: shared research and student-resource identity.
   Palette and type reference: https://ait.ac.th/visual-identity/ */
:root{--ait-green:#3f6433;--ait-lime:#a1be37;--ait-sage:#8db37f;--lab-ink:#303a30;--lab-muted:#555e53;--lab-line:#dce3d7;--lab-soft:#f3f6ef;--lab-header:120px}
html{scroll-padding-top:140px}body{font-family:Lato,Arial,sans-serif;color:var(--lab-ink);font-size:16px;line-height:1.7}h1,h2,h3,h4,h5,h6{font-family:Lato,Arial,sans-serif;color:var(--lab-ink)}a{color:var(--ait-green)}a:hover{color:#294528;text-decoration:underline;text-underline-offset:4px}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--ait-lime);outline-offset:4px}section{padding:50px 0}#main{min-height:55vh}main h2,main h3,main h4{scroll-margin-top:140px}
#header{position:sticky;top:0;padding:0;border:0;background:#fff;box-shadow:none;transition:none}#header.header-scrolled{box-shadow:0 2px 8px #23351d0c}.ait-institution{background:var(--ait-green);color:#fff;font-size:11px;letter-spacing:.06em;line-height:1.4}.ait-institution .container{display:flex;justify-content:space-between;gap:20px;padding-top:9px;padding-bottom:9px}.ait-institution a{color:#fff;text-transform:uppercase}.lab-masthead{min-height:88px;border-bottom:1px solid var(--lab-line)}#header .logo{font-family:Lato,Arial,sans-serif;font-size:27px;font-weight:900;letter-spacing:-.025em}#header .logo a{gap:14px;color:var(--lab-ink)}#header .logo img{height:50px}#header .logo .lab-wordmark{white-space:nowrap;line-height:1.15}#header .logo .lab-wordmark-sub{display:block;margin-top:6px;font-size:11px;letter-spacing:.02em;font-weight:400;color:var(--lab-muted)}.navbar a,.navbar a:focus{font-family:Lato,Arial,sans-serif;font-size:14px;color:var(--lab-ink);padding-left:25px}.navbar a:hover,.navbar .active,.navbar .active:focus,.navbar li:hover>a{color:var(--ait-green)}.navbar .dropdown ul{border-radius:0;box-shadow:0 6px 25px #24361b15;border:1px solid var(--lab-line)}.navbar .dropdown ul a{color:var(--lab-ink)}.mobile-nav-toggle{color:var(--ait-green)}
.breadcrumbs{margin:0;padding:27px 0;background:var(--lab-soft);border-bottom:1px solid var(--lab-line)}.breadcrumbs h2{font-size:32px;line-height:1.25;font-weight:700;margin:0;letter-spacing:-.025em}.section-title{text-align:left;padding-bottom:26px}.section-title h2{font-size:29px;font-weight:700;text-transform:none;color:var(--lab-ink);letter-spacing:-.025em;margin-bottom:14px}.section-title p{max-width:760px;color:var(--lab-muted)}.section-bg{background:#f7f9f4}.back-to-top,.back-to-top:hover{background:var(--ait-green)}
#hero.lab-hero{height:auto;min-height:0;padding:52px 0 40px;background:#fff}#hero.lab-hero:before{display:none}#hero.lab-hero .container{padding-top:0}.hero-layout{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:64px;align-items:center}.lab-eyebrow{font-size:11px;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:var(--ait-green);margin:0 0 18px}#hero.lab-hero h1{font-family:Lato,Arial,sans-serif;font-size:clamp(44px,5.4vw,72px);line-height:1.03;font-weight:900;letter-spacing:-.045em;color:var(--lab-ink);margin:0 0 25px}.hero-description{font-size:18px;line-height:1.65;max-width:620px;color:var(--lab-muted);margin:0 0 28px}.hero-actions{display:flex;align-items:center;flex-wrap:wrap;gap:18px 26px}.lab-button{display:inline-flex;align-items:center;gap:20px;background:var(--ait-green);color:#fff;padding:11px 20px;font-size:14px;font-weight:700;border:1px solid var(--ait-green);text-decoration:none}.lab-button:hover{background:#294528;color:#fff;text-decoration:none}.lab-text-link{display:inline-block;font-size:14px;font-weight:700;text-decoration:none;border-bottom:1px solid var(--ait-green);padding-bottom:4px}.hero-research{margin:0;background:var(--lab-soft);padding:18px}.hero-research img{width:100%;height:260px;object-fit:contain;display:block;background:#e8ede2}.hero-research figcaption{color:var(--lab-muted);font-size:11px;line-height:1.5;margin-top:11px}.hero-research figcaption span{font-weight:700;margin-right:8px}
.research-overview{padding:0 0 42px}.overview-layout{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:64px;padding-top:30px;border-top:1px solid var(--lab-line)}.lab-section-heading{display:flex;gap:18px;align-items:baseline;justify-content:space-between;margin-bottom:24px}.lab-section-heading h2{font-size:28px;font-weight:700;letter-spacing:-.035em;line-height:1.2;margin:0}.lab-section-heading>a{font-size:12px;white-space:nowrap}.research-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px 28px}.research-grid article{padding-top:12px;border-top:2px solid var(--ait-green)}.research-number{font-size:11px;color:var(--lab-muted)}.research-grid h3{font-size:17px;line-height:1.35;font-weight:700;margin:10px 0 8px}.research-grid h3 a{color:var(--lab-ink)}.research-grid p{font-size:14px;color:var(--lab-muted);line-height:1.6;margin:0}.research-highlights article{padding-bottom:15px;margin-bottom:16px;border-bottom:1px solid var(--lab-line)}.publication-label{font-size:10px;letter-spacing:.07em;text-transform:uppercase;color:var(--ait-green);margin:0 0 7px}.research-highlights h3{font-size:15px;font-weight:400;line-height:1.5;margin:0}.research-highlights h3 a{color:var(--lab-ink)}
.student-entry{background:var(--lab-soft);border-top:1px solid var(--lab-line);border-bottom:1px solid var(--lab-line);padding:30px 0}.student-entry-layout{display:grid;grid-template-columns:1.5fr 1fr;gap:50px;align-items:center}.student-entry .lab-eyebrow{margin-bottom:10px}.student-entry h2{font-size:28px;font-weight:700;letter-spacing:-.025em;margin-bottom:10px}.student-entry p:not(.lab-eyebrow){font-size:15px;color:var(--lab-muted);margin:0;max-width:690px}.student-entry-links{display:flex;gap:20px;align-items:center;justify-content:flex-end;flex-wrap:wrap}
/* A reading layout for students, within the same AIT masthead. */
body .lab-page{max-width:1140px}.student-resource-layout{display:grid;grid-template-columns:190px minmax(0,1fr);gap:45px;align-items:start}.student-resource-sidebar{position:static;border-right:1px solid var(--lab-line);padding-right:24px}.student-resource-sidebar .lab-eyebrow{margin-bottom:14px}body .lab-page .lab-page-links{display:flex;flex-direction:column;gap:12px;margin:0;padding:0;border:0;font-size:14px;line-height:1.5}.student-resource-content{max-width:780px;min-width:0}body .lab-page h2{font-size:26px;letter-spacing:-.025em;margin-top:2.4rem}body .lab-page h3{font-size:20px;font-weight:700;margin-top:1.8rem}body .lab-page .page-toc{background:var(--lab-soft);border-radius:0;border-left:3px solid var(--ait-lime)}body .lab-page th{background:var(--lab-soft)}body .lab-page td,body .lab-page th{border-color:var(--lab-line)}body .lab-page blockquote{border-color:var(--ait-green);background:var(--lab-soft)}body .lab-page .page-toc a{font-size:14px}body .lab-research{max-width:1050px}body .lab-research .degree-path{border-color:var(--lab-line);border-top-color:var(--ait-green);border-radius:0;background:var(--lab-soft)}body .lab-research .research-note{border-color:var(--ait-green);background:var(--lab-soft)}body .lab-research .project-item-text{border-color:var(--lab-line)}.publication-list{padding-left:21px;margin-bottom:28px}.publication-list li{margin-bottom:12px;line-height:1.7}#main .card{border-radius:0;border-color:var(--lab-line);box-shadow:none}#main .card-body{min-width:0}#main .card img{object-fit:cover}#main .card-text{font-size:14px!important}
/* Let the guide remain a presentation while matching the lab identity. */
body .research-guide .deck{border-radius:4px;box-shadow:none;border-color:var(--lab-line);scroll-margin-top:145px}body .research-guide .slide h2{color:var(--lab-ink);letter-spacing:-.025em}body .research-guide a{color:var(--ait-green)}body .research-guide .slides{background:#fff}body .research-guide .steps li:before{background:var(--ait-green)}body .research-guide .takeaway{color:var(--ait-green);border-color:var(--ait-lime)}body .research-guide .exercise-table th,body .research-guide .mini-table th,body .research-guide .paper-points li{background:var(--lab-soft);color:var(--lab-ink)}body .research-guide .concept-visual{background:var(--lab-soft)}body .research-guide .unknown{background:var(--ait-green)}body .research-guide .journey-stage{background:#f1f4ed;color:var(--lab-muted)}body .research-guide .journey-stage::before{background:#e0eacb}body .research-guide .journey-stage.appendix{background:#f4f4ed}body .research-guide .controls button{background:var(--ait-green);border-radius:2px}body .research-guide .question{color:var(--ait-green)}
/* Research demonstrations stay visible without requiring a hover. */
#student-projects .portfolio-wrap{border-bottom:1px solid var(--lab-line);padding-bottom:15px;margin-bottom:14px}#student-projects .portfolio-wrap::before,#student-projects .portfolio-info::before,#student-projects .portfolio-info::after{display:none}#student-projects .portfolio-wrap>.img-fluid{width:100%;aspect-ratio:16/9;object-fit:cover}#student-projects .portfolio-wrap .portfolio-info{position:static;opacity:1;text-align:left;align-items:flex-start;padding:15px 0 0}#student-projects .portfolio-wrap .portfolio-info h4{font-size:17px;color:var(--lab-ink);line-height:1.4}#student-projects .portfolio-wrap .portfolio-info p{font-size:13px;color:var(--lab-muted);text-transform:none}#student-projects .portfolio-wrap .portfolio-links a{color:var(--ait-green);font-size:24px;margin:7px 10px 0 0}.contact .info i{background:var(--lab-soft);color:var(--ait-green)}.contact .info h4{color:var(--lab-ink)}
#footer{background:#f2f5ee;border-top:1px solid var(--lab-line);color:var(--lab-muted);font-size:13px}.lab-footer{display:flex;gap:45px;justify-content:space-between;padding-top:35px;padding-bottom:28px}.footer-lab-name{font-size:23px;font-weight:900;color:var(--lab-ink)}.lab-footer p{margin:3px 0}.lab-footer nav{display:flex;gap:12px 25px;flex-wrap:wrap;align-content:start;justify-content:flex-end;max-width:510px;padding-top:8px}.lab-copyright{padding-top:15px;padding-bottom:18px;border-top:1px solid var(--lab-line);font-size:11px}
@media(min-width:1200px){.container{max-width:1180px}}
@media(max-width:1199px){:root{--lab-header:115px}.hero-layout,.overview-layout{gap:38px}.navbar-mobile{background:#24341ceF}.navbar-mobile ul{top:60px}.navbar-mobile a,.navbar-mobile a:focus{color:var(--lab-ink)}.navbar-mobile .dropdown ul{box-shadow:none}.navbar-mobile .mobile-nav-toggle{top:15px}.navbar-mobile .mobile-nav-toggle.bi-x{color:#fff}}
@media(max-width:767px){:root{--lab-header:105px}body{font-size:16px}.ait-institution{font-size:10px}.ait-institution .container{padding-top:7px;padding-bottom:7px}.ait-institution span{display:none}.lab-masthead{min-height:76px}#header .logo{font-size:24px}#header .logo img{height:42px}#header .logo .lab-wordmark-sub{font-size:10px}.breadcrumbs{padding:23px 0}.breadcrumbs h2{font-size:28px}section{padding:34px 0}#hero.lab-hero{padding:35px 0}.hero-layout,.overview-layout,.student-entry-layout{grid-template-columns:1fr;gap:30px}#hero.lab-hero h1{font-size:50px;line-height:1.04}.hero-description{font-size:17px}.hero-research img{height:220px}.overview-layout{padding-top:28px}.research-grid{gap:24px}.lab-section-heading h2{font-size:25px}.student-entry-links{justify-content:flex-start}.student-resource-layout{grid-template-columns:1fr;gap:24px}.student-resource-sidebar{position:static;border:0;border-bottom:1px solid var(--lab-line);padding:0 0 20px}.student-resource-sidebar .lab-eyebrow{display:none}body .lab-page .lab-page-links{flex-direction:row;flex-wrap:wrap;gap:10px 18px}.lab-footer{flex-direction:column;gap:15px}.lab-footer nav{justify-content:flex-start}.hero-actions{gap:18px}.research-highlights{margin-top:5px}body .research-guide .deck{scroll-margin-top:115px}}
@media(max-width:390px){.research-grid{grid-template-columns:1fr}#hero.lab-hero h1{font-size:46px}#header .logo{font-size:22px}.hero-actions{align-items:flex-start;flex-direction:column}.hero-research img{height:185px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* One shared navigation rail for all five research and student pages. */
.student-resource-layout{align-items:stretch}
.student-resource-sidebar{position:relative;min-width:0}
.student-resource-sidebar-inner{position:sticky;top:145px}
.student-resource-sidebar .lab-page-links{display:flex;flex-direction:column;gap:6px;margin:0;padding:0;border:0;font-size:14px;line-height:1.5}
.student-resource-sidebar .lab-page-links a{display:block;padding:7px 10px;border-left:2px solid transparent}
.student-resource-sidebar .lab-page-links a.resource-current{border-left-color:var(--ait-green);background:var(--lab-soft);font-weight:700;color:var(--ait-green)}
.research-resource-shell .student-resource-content{max-width:none}
.resource-guide-shell{max-width:1460px}
.resource-guide-shell .student-resource-layout{grid-template-columns:180px minmax(0,1fr);gap:30px}
.resource-guide-shell .research-guide{min-width:0}
.resource-guide-shell .deck-top{grid-template-columns:minmax(0,1fr) auto}
.resource-guide-shell .deck-meta{grid-column:2;grid-row:1}
.resource-guide-shell .top-actions{grid-column:1 / -1;justify-content:flex-end}
@media(max-width:1199px){.resource-guide-shell .visual-layout,.resource-guide-shell .two-col{grid-template-columns:1fr}.resource-guide-shell .slide-visual img{max-height:280px}}
@media(max-width:767px){
  .student-resource-sidebar{position:static}
  .student-resource-sidebar-inner{position:static}
  .student-resource-sidebar .lab-page-links,body .lab-page .lab-page-links{flex-direction:row;gap:5px 9px}
  .student-resource-sidebar .lab-page-links a{padding:5px 7px;border-left:0;border-bottom:2px solid transparent}
  .student-resource-sidebar .lab-page-links a.resource-current{border-left:0;border-bottom-color:var(--ait-green)}
  .resource-guide-shell .student-resource-layout{grid-template-columns:1fr;gap:24px}
  .resource-guide-shell .deck-top{grid-template-columns:minmax(0,1fr)}
  .resource-guide-shell .deck-meta{grid-column:auto;grid-row:auto}
  .resource-guide-shell .top-actions{justify-content:flex-start}
}
/* Sticky navigation must use the page, not a clipped section, as its scroll container. */
section.portfolio-details{overflow:visible}
@media(max-width:767px){.student-resource-sidebar .lab-page-links{flex-wrap:wrap}}
/* Long research prompts remain readable on the standalone AI page. */
.student-resource-content pre{white-space:pre-wrap;overflow-wrap:anywhere;padding:1.1rem 1.25rem;background:var(--lab-soft);border-left:3px solid var(--ait-green);font-size:14px;line-height:1.7}
.student-resource-content code{color:#34472f}
.student-resource-sidebar-inner{max-height:calc(100vh - 160px);overflow-y:auto}
@media(max-width:767px){.student-resource-sidebar-inner{max-height:none;overflow:visible}}
body .research-guide details{background:var(--lab-soft)}
/* Plain-text research prompts: override Hugo's inline dark highlighting theme. */
body .student-resource-content .highlight,
body .student-resource-content .highlight pre,
body .student-resource-content pre{background:var(--lab-soft)!important;color:var(--lab-ink)!important}
body .student-resource-content pre code,
body .student-resource-content pre code span{background:transparent!important;color:inherit!important}
.prompt-block{border:1px solid var(--lab-line);border-left:3px solid var(--ait-green);margin:1.2rem 0 2rem;background:var(--lab-soft);min-width:0}
.prompt-toolbar{display:flex;align-items:center;gap:12px;justify-content:space-between;border-bottom:1px solid var(--lab-line);padding:9px 14px;font-size:12px;color:var(--lab-muted)}
.prompt-copy{border:1px solid var(--ait-green);border-radius:3px;background:#fff;color:var(--ait-green);padding:5px 13px;font:700 13px/1.5 Lato,Arial,sans-serif;cursor:pointer;min-width:64px}
.prompt-copy:hover{background:#e9efdf}
.prompt-copy-status{margin-left:auto;font-size:12px}
.prompt-block .highlight{margin:0}
body .prompt-block pre{margin:0;border:0;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;white-space:pre-wrap;overflow-wrap:anywhere}