/* Premium editorial layer — DBT / RMUTSV, navy & maroon institutional identity */
:root{--plum:#0b1f3a;--wine:var(--brand-pink-deep);--magenta:var(--brand-pink);--rose:#6fa8dc;--blush:#eef2f6;--cream:#f6f8fa;--ink-2:#1b2430;--hairline:rgba(11,31,58,.12);--ease:cubic-bezier(.2,.8,.2,1);
  /* Type system. Three roles, never mixed up:
     display — page and section headlines (h1/h2). A high-contrast serif pair:
               Instrument Serif carries Latin, Noto Serif Thai carries Thai.
     body    — running copy and UI text.
     label   — the letterspaced micro-labels (.eyebrow, .mini-label, numerals). */
  --font-display:"Instrument Serif","Noto Serif Thai",Georgia,"Times New Roman",serif;
  --font-body:"IBM Plex Sans Thai",system-ui,-apple-system,sans-serif;
  --font-label:Manrope,"IBM Plex Sans Thai",sans-serif}

/* ── Display typography ──────────────────────────────────────────────────────
   A large, light serif headline over small, airy sans body copy is what reads as
   editorial rather than corporate. Instrument Serif ships a single (400) weight,
   so font-synthesis-weight:none stops the browser smearing a fake bold onto it —
   Noto Serif Thai does have a real 500, and Thai reads lighter than Latin at the
   same weight anyway, so the pair lands evenly on a mixed line.                */
:is(h1,h2),.hero h1,.page-hero h1{font-family:var(--font-display);font-weight:500;font-synthesis-weight:none}
.eyebrow,.mini-label,.section-kicker span,.section-kicker p{font-family:var(--font-label)}
/* Thai stacks vowels and tone marks two levels above the baseline and sara u/uu
   below it, so the tight tracking and sub-1 leading that flatter Instrument Serif
   would clip them. This is a *default* only — wrapped in :where() so it carries no
   specificity and every page keeps the leading it tuned for its own hero.        */
:where(html[lang="th"]) :where(h1,h2){line-height:1.2;letter-spacing:-.005em}
/* The display heroes are the exception: they set sub-1 leading that was safe for a
   flat-topped sans but clips a serif's tone marks, so they are raised explicitly. */
html[lang="th"] :is(.hero h1,.download-hero h1,.achievement-hero h1,.legacy-hero-copy h1){line-height:1.18}
html{scroll-padding-top:96px;overflow-x:hidden}body{background:var(--cream);color:var(--ink-2);overflow-x:hidden}
.container{width:min(1240px,calc(100% - 64px))}
.utility-links{display:flex;gap:20px}
.site-header{background:rgba(8,20,40,.82);border-bottom:1px solid rgba(255,255,255,.1);box-shadow:none;backdrop-filter:blur(18px) saturate(1.25);transition:background .35s var(--ease),box-shadow .35s var(--ease)}
.site-header.is-scrolled{background:rgba(8,20,40,.97);box-shadow:0 1px 2px rgba(7,20,42,.07),0 16px 45px rgba(8,20,40,.22)}
.nav-wrap{height:92px;width:min(1240px,calc(100% - 64px))}.brand{gap:15px}.brand img{width:78px;height:56px;border:0;border-radius:4px;padding:4px;object-fit:contain;background:#fff}.brand span{max-width:240px}.brand strong{font-weight:600;line-height:1.25}.brand small{letter-spacing:.035em;margin-top:3px}.nav-wrap nav{gap:24px;font-size:.84rem}.nav-wrap nav>a:not(.nav-cta):after{display:none}.nav-cta{border-color:rgba(255,255,255,.24);border-radius:2px;padding:10px 17px!important;transition:.25s}.nav-cta:hover{background:#fff;color:var(--plum)!important;opacity:1!important}
.hero{min-height:600px;background:var(--plum);overflow:hidden}.hero-grid{min-height:600px;display:grid;grid-template-columns:1.3fr .8fr;gap:48px;align-items:center;position:relative}.hero-backdrop img{filter:grayscale(1) brightness(.3) contrast(1.3) blur(3px);object-position:center center;transform:scale(1.02)}
.hero:before{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(circle at 20% 42%,rgba(20,50,90,.3),transparent 34%)}
.hero:after{background:linear-gradient(100deg,rgba(6,14,26,.96) 0%,rgba(10,28,52,.9) 42%,rgba(10,28,52,.6) 74%,rgba(10,28,52,.4) 100%)}
.hero-copy{max-width:660px;padding:52px 0}.eyebrow{font-size:.78rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:#cfe0f0}.hero h1{font-size:clamp(3rem,4.6vw,4.6rem);line-height:.98;letter-spacing:-.045em;margin:24px 0 26px;text-wrap:balance}.hero h1 span{font-size:.72rem;letter-spacing:.19em;color:#8fc1ea;margin-bottom:16px}.hero-copy>p{max-width:560px;font-size:1.08rem;line-height:1.75;color:rgba(255,255,255,.85)}
.hero-actions{display:flex;align-items:center;gap:28px;margin-top:30px;flex-wrap:wrap}.hero-scroll{margin:0;border:1px solid rgba(255,255,255,.35);border-radius:2px;padding:14px 20px;transition:.25s var(--ease)}.hero-scroll:hover{background:#fff;color:var(--plum);border-color:#fff}.hero-disciplines{display:flex;gap:10px;flex-wrap:wrap}.hero-disciplines span{font:600 .62rem Manrope,sans-serif;letter-spacing:.08em;color:rgba(255,255,255,.72)}.hero-disciplines span+span:before{content:"/";margin-right:10px;color:var(--rose)}
.hero-news{background:#fff;border-radius:2px;box-shadow:0 1px 2px rgba(7,20,42,.07),0 30px 70px rgba(6,14,26,.4);overflow:hidden;align-self:center}
.hero-news-head{display:flex;align-items:center;justify-content:space-between;background:var(--magenta);color:#fff;padding:16px 22px;font:700 .82rem "IBM Plex Sans Thai",sans-serif}
.hero-news-head a{display:flex;align-items:center;gap:6px;color:#fff;font-size:.74rem;opacity:.85}.hero-news-head a:hover{opacity:1}.hero-news-head .icon{width:14px}
.hero-news-list{list-style:none;margin:0;padding:0}.hero-news-list li{border-bottom:1px solid #eef1f4}.hero-news-list li:last-child{border-bottom:0}
.hero-news-list a{display:block;padding:16px 22px;color:var(--ink-2)}.hero-news-list a:hover{background:#f5f7f9}
.hero-news-list time{display:block;font-size:.7rem;font-weight:700;color:var(--magenta);letter-spacing:.04em;margin-bottom:5px}.hero-news-list strong{display:block;font-size:.92rem;line-height:1.5;font-weight:600}
.hero-news-empty{padding:22px;color:#5c6774;font-size:.85rem}
.signal-strip{height:46px;background:var(--magenta);color:#fff;overflow:hidden;display:flex;align-items:center;white-space:nowrap}.signal-strip div{font:700 .65rem Manrope;letter-spacing:.18em;text-transform:uppercase;word-spacing:14px;min-width:max-content;animation:signal 24s linear infinite}.signal-strip i{display:inline-block;width:5px;height:5px;border-radius:50%;background:#fff;margin:0 20px;vertical-align:middle}@keyframes signal{to{transform:translateX(-35%)}}
.quick-section{padding:0 0 110px;background:var(--cream)}.quick-grid{width:min(1240px,calc(100% - 64px));grid-template-columns:repeat(3,1fr);border:1px solid var(--hairline);border-top:0}.quick-card{height:138px;background:#fff!important;color:var(--ink-2);border-right:1px solid var(--hairline);border-bottom:1px solid var(--hairline);padding:28px 30px;position:relative;overflow:hidden}.quick-card:before{content:"";position:absolute;inset:auto 0 0;height:3px;background:var(--magenta);transform:scaleX(0);transform-origin:left;transition:.35s var(--ease)}.quick-card:hover{background:var(--plum)!important;color:#fff;transform:none}.quick-card:hover:before{transform:scaleX(1)}.quick-card>.icon:first-child{color:var(--magenta)}.quick-card small{color:#5c6774}.quick-card:hover small{color:#c3d3e5}
.section{padding:132px 0}.mini-label{color:var(--magenta);letter-spacing:.18em}.intro{background:linear-gradient(180deg,var(--cream),#eef3f8)}.intro .container{max-width:1080px}.intro-copy h2,.section-head h2,.service-title h2,.contact-copy h2{font-size:clamp(2.8rem,4.5vw,5rem);line-height:1.04;letter-spacing:-.055em}.intro-copy .lead{max-width:900px;margin-inline:auto;color:#5c6774}.learning-points{gap:0;border:1px solid var(--hairline);margin-top:64px;padding:0}.learning-points div{padding:30px;border-right:1px solid var(--hairline)}.learning-points div:last-child{border:0}.learning-points b{color:var(--magenta)}
.curriculum{background:#eef2f6;position:relative}.curriculum:before{content:"DBT";position:absolute;right:-2vw;top:20px;font:800 18vw/.8 Manrope;color:rgba(11,31,58,.04);letter-spacing:-.08em}.subject-card{min-height:480px;padding:42px;border-radius:2px;position:relative;overflow:hidden;transition:transform .4s var(--ease),box-shadow .4s var(--ease)}.subject-card:hover{transform:translateY(-10px)!important;box-shadow:0 1px 2px rgba(7,20,42,.07),0 30px 60px rgba(11,31,58,.18)}.subject-card h3{font-family:"IBM Plex Sans Thai",sans-serif;font-size:2.15rem}.subject-card.dark{background:linear-gradient(150deg,#0b1f3a,#173a63)}.subject-card.blue{background:linear-gradient(150deg,var(--brand-pink),#d6247a)}.subject-card.light{background:#fff;color:var(--plum);box-shadow:inset 0 0 0 1px var(--hairline)}
.stats-band{background:linear-gradient(90deg,rgba(8,20,40,.95),rgba(132,12,72,.88)),url('../images/dbt-pattern.jpg') center 37%/cover fixed;padding:78px 0}.stat strong{font-size:clamp(2.6rem,4vw,4rem);letter-spacing:-.05em}.stat small{color:#c9d6e4;letter-spacing:.02em}
.faq{background:var(--cream)}.faq-grid{gap:14px}.faq-card{min-height:350px;border:1px solid var(--hairline);background:#fff;padding:36px}.faq-card:after{content:attr(data-number);display:none}.faq-card h3{font-size:1.45rem}.faq-card:hover{background:var(--plum);transform:translateY(-8px);box-shadow:0 1px 2px rgba(7,20,42,.07),0 25px 55px rgba(11,31,58,.2)}
.careers{background:#eef2f6}.career-list{border-color:rgba(11,31,58,.16)}.career-row{padding:33px 18px;border-color:rgba(11,31,58,.16)}.career-row:hover{background:#fff;padding-inline:28px;box-shadow:0 1px 2px rgba(7,20,42,.07),0 12px 35px rgba(11,31,58,.08)}.career-row h3{font-family:"IBM Plex Sans Thai",sans-serif}.career-row>.icon{color:var(--magenta)}
.people{background:var(--plum);color:#fff}.people .section-head h2{color:#fff}.people .section-head>p{color:#b9c8d8}.people .section-head.centered{margin-bottom:56px}
.org-chart{display:flex;flex-direction:column;align-items:center}
.org-tier{display:flex;justify-content:center;flex-wrap:wrap;gap:22px;width:100%}
.org-tier.faculty{max-width:1080px;margin-top:6px}
.org-connector{width:2px;height:32px;background:rgba(255,255,255,.22)}
.org-divider{display:flex;align-items:center;gap:18px;width:100%;max-width:1080px;margin:58px 0 26px;color:rgba(255,255,255,.55);font:700 .7rem Manrope,sans-serif;letter-spacing:.14em;text-transform:uppercase}
.org-divider:before,.org-divider:after{content:"";flex:1;height:1px;background:rgba(255,255,255,.16)}
.staff-card{background:#142c4a;border-radius:4px;overflow:hidden;display:flex;flex-direction:column;transition:.3s var(--ease);width:172px}
.staff-card .avatar{width:100%;aspect-ratio:3/4;object-fit:cover;display:block;filter:grayscale(.2) contrast(1.02);transition:.3s var(--ease)}
.staff-card:hover .avatar{filter:none}
.staff-card .info{padding:14px 16px;text-align:center}
.staff-card b{display:block;font-size:.63rem;letter-spacing:.06em;color:#8fc1ea;text-transform:uppercase;margin-bottom:5px}
.staff-card h3{font-size:.86rem;margin:0;color:#fff;line-height:1.35}
.staff-card:hover{background:#fff;transform:translateY(-6px);box-shadow:0 1px 2px rgba(7,20,42,.07),0 22px 44px rgba(6,14,26,.35)}
.staff-card:hover h3{color:var(--plum)}
.staff-card:hover b{color:var(--magenta)}
.staff-card.lead{width:236px;box-shadow:0 1px 2px rgba(7,20,42,.07),0 20px 48px rgba(6,14,26,.4)}
.staff-card.lead .info{background:linear-gradient(140deg,#0d3a63,#1a5c94);padding:20px}
.staff-card.lead b{color:var(--brand-pink-tint);font-size:.68rem}
.staff-card.lead h3{font-size:1.12rem;font-weight:700}
.staff-card.lead:hover .info{background:#fff}
.staff-card.lead:hover b{color:var(--magenta)}
.staff-card.officer{width:172px}
@media(max-width:600px){.staff-card{width:calc(50% - 11px)}.staff-card.lead{width:min(236px,100%)}}
.news{background:var(--cream)}.news-grid{gap:26px}.news-card{border:1px solid var(--hairline);border-radius:2px;overflow:hidden}.news-card:hover{transform:translateY(-9px);box-shadow:0 1px 2px rgba(7,20,42,.07),0 28px 60px rgba(11,31,58,.14)}.news-art{height:210px}.news-art.cyan{background:linear-gradient(145deg,#1f4e79,#3f7cad)}.news-art.orange{background:linear-gradient(145deg,#0d3a63,#1a5c94)}.news-art.navy{background:linear-gradient(145deg,#0b1f3a,#173a63)}
.student-services{background:#eaf0f6}.service-links{border-color:rgba(11,31,58,.16)}.service-links a{padding:25px 8px;border-color:rgba(11,31,58,.16);transition:.25s}.service-links a:hover{color:var(--magenta);padding-left:18px;background:rgba(255,255,255,.6)}
.admission{background:linear-gradient(112deg,#0b2545 0%,var(--brand-pink-deep) 55%,var(--brand-pink) 100%);padding:112px 0}.admission:before{content:"";position:absolute;width:420px;height:420px;border:1px solid rgba(255,255,255,.15);border-radius:50%;right:8%;top:-210px}.button{border-radius:2px}.button-light{padding:15px 24px}
.contact{background:var(--cream)}.contact-form{background:#fff;border-top:0;box-shadow:0 1px 2px rgba(7,20,42,.07),0 32px 80px rgba(11,31,58,.12);padding:50px;border-radius:2px}.contact-form input,.contact-form textarea{font:inherit;padding:14px 0}.button-primary{background:var(--plum);transition:.25s}.button-primary:hover{background:var(--magenta);transform:translateY(-2px)}
footer{background:#081a30;padding-top:78px}.footer-brand img{width:78px;height:56px}.footer-bottom{color:#7c8a9a}
.reveal{transform:translateY(24px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
@media(max-width:1000px){.container,.nav-wrap,.quick-grid{width:min(100% - 40px,1240px)}.nav-wrap nav{gap:12px}.hero{min-height:680px}.hero-grid{min-height:680px;grid-template-columns:1fr}.hero-news{max-width:520px}}
@media(max-width:900px){.nav-wrap nav{top:92px;background:rgba(8,20,40,.98)}.hero:after{background:linear-gradient(100deg,rgba(6,14,26,.94),rgba(10,28,52,.68))}.hero-copy{max-width:640px}.quick-grid{grid-template-columns:1fr 1fr}.faq-grid{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.container,.nav-wrap{width:min(100% - 30px,1240px)}.nav-wrap{height:78px}.nav-wrap nav{top:78px}.brand img{width:56px;height:48px}.brand span{max-width:185px}.brand strong{font-size:.82rem}.brand small{font-size:.56rem}.hero,.hero-grid{min-height:auto}.hero-backdrop img{object-position:41% center}.hero:after{background:linear-gradient(100deg,rgba(6,14,26,.97),rgba(10,28,52,.78))}.hero-copy{padding:60px 0 24px}.eyebrow{font-size:.66rem;line-height:1.6}.hero h1{font-size:clamp(2.6rem,12vw,3.4rem);margin:20px 0}.hero-copy>p{font-size:1rem}.hero-actions{align-items:flex-start;flex-direction:column;gap:18px}.hero-disciplines{flex-wrap:wrap}.hero-news{margin-bottom:32px}.signal-strip{height:40px}.quick-grid{width:100%;grid-template-columns:1fr}.quick-card{height:104px;min-height:104px}.quick-section{padding-bottom:80px}.section{padding:92px 0}.learning-points{grid-template-columns:1fr}.learning-points div{border-right:0;border-bottom:1px solid var(--hairline)}.subject-card{min-height:390px}.stats-band{background-attachment:scroll}.faq-grid{grid-template-columns:1fr}.faq-card{min-height:260px}.people-grid{grid-template-columns:1fr}.contact-form{padding:30px 24px}.admission{padding:82px 0}.footer-brand img{width:70px;height:50px}}
@media(prefers-reduced-motion:reduce){.signal-strip div{animation:none}.subject-card,.quick-card,.career-row{transition:none}}

/* Site search */
.search-toggle{display:inline-flex;align-items:center;gap:7px;border:1px solid rgba(255,255,255,.25);border-radius:2px;background:transparent;color:#fff;padding:9px 14px;font:600 .78rem "IBM Plex Sans Thai",sans-serif;cursor:pointer;transition:.25s;flex:none}.search-toggle:hover{background:#fff;color:var(--plum)}.search-toggle .icon{width:17px;height:17px}
.search-panel{position:fixed;inset:0;z-index:1000;background:rgba(6,14,26,.78);backdrop-filter:blur(13px);display:flex;justify-content:center;align-items:flex-start;padding:110px 24px 30px;opacity:0;visibility:hidden;transition:.3s var(--ease)}.search-panel.open{opacity:1;visibility:visible}.search-panel-inner{width:min(760px,100%);max-height:calc(100vh - 140px);overflow:auto;background:#fff;border-radius:4px;padding:32px;box-shadow:0 1px 2px rgba(7,20,42,.07),0 35px 100px rgba(6,14,26,.35);transform:translateY(-18px);transition:.35s var(--ease)}.search-panel.open .search-panel-inner{transform:none}
.search-top{display:flex;justify-content:space-between;align-items:center;color:var(--plum);font-weight:700;margin-bottom:24px}.search-close{border:0;background:#e9eef4;color:var(--plum);width:38px;height:38px;border-radius:50%;display:grid;place-items:center;cursor:pointer}.search-close .icon{width:18px}.search-field{display:flex;align-items:center;gap:14px;border-bottom:2px solid var(--plum);padding:8px 2px}.search-field:focus-within{outline:2px solid var(--magenta);outline-offset:4px}.search-field .icon{width:24px;color:var(--magenta);flex:none}.search-field input{width:100%;border:0;outline:0;background:transparent;font:600 clamp(1.1rem,3vw,1.65rem) "IBM Plex Sans Thai",sans-serif;color:var(--plum);padding:10px 0}.search-panel-inner>p{font-size:.75rem;color:#6b7684;margin:11px 0 22px}.search-open{overflow:hidden}
@media(max-width:1000px){.search-toggle span{display:none}.search-toggle{width:39px;height:39px;padding:0;justify-content:center}}
@media(max-width:600px){.search-toggle{margin-left:auto}.search-panel{padding:86px 12px 16px}.search-panel-inner{padding:24px 18px;max-height:calc(100vh - 102px)}}
.visitor-count{margin-top:18px;padding:14px 16px;border:1px solid rgba(255,255,255,.13);border-radius:2px;display:grid!important;grid-template-columns:1fr auto;gap:2px 14px;background:rgba(255,255,255,.04)}.visitor-count span{font-size:.72rem;color:#b9c8d8}.visitor-count strong{grid-row:1/3;grid-column:2;font:700 1.65rem/1 Manrope;color:#fff}.visitor-count small{font-size:.68rem;color:#e0879a}

/* AI assistant */
.ai-toggle{position:fixed;right:24px;bottom:24px;z-index:800;border:0;border-radius:999px;background:linear-gradient(135deg,var(--plum),var(--magenta));color:#fff;padding:13px 19px 13px 12px;display:flex;align-items:center;gap:10px;font:700 .84rem "IBM Plex Sans Thai",sans-serif;box-shadow:0 1px 2px rgba(7,20,42,.07),0 14px 40px rgba(11,31,58,.35);cursor:pointer;transition:.3s var(--ease)}.ai-toggle:hover{transform:translateY(-4px)}.ai-spark,.ai-avatar{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:rgba(255,255,255,.16);color:#dce9f5;font-size:1.1rem}
.ai-assistant{position:fixed;right:24px;bottom:88px;z-index:810;width:min(390px,calc(100vw - 32px));height:min(610px,calc(100vh - 120px));background:#fff;border:1px solid rgba(11,31,58,.14);border-radius:14px;box-shadow:0 1px 2px rgba(7,20,42,.07),0 30px 90px rgba(6,14,26,.32);display:flex;flex-direction:column;overflow:hidden;opacity:0;visibility:hidden;transform:translateY(18px) scale(.97);transform-origin:bottom right;transition:.3s var(--ease)}.ai-assistant.open{opacity:1;visibility:visible;transform:none}.ai-assistant>header{display:flex;align-items:center;justify-content:space-between;padding:16px 18px;background:linear-gradient(125deg,#0b1f3a,#0d3a63);color:#fff}.ai-assistant>header>div{display:flex;align-items:center;gap:11px}.ai-assistant header strong,.ai-assistant header small{display:block}.ai-assistant header strong{font-size:.92rem}.ai-assistant header small{font-size:.67rem;color:#c9d6e4;margin-top:2px}.ai-assistant header small i{display:inline-block;width:6px;height:6px;border-radius:50%;background:#4ee0a1;margin-right:5px}.ai-close{border:0;background:rgba(255,255,255,.1);color:#fff;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;cursor:pointer}.ai-close .icon{width:16px}
.ai-messages{flex:1;overflow-y:auto;padding:18px;background:#f7f9fb;display:flex;flex-direction:column;gap:11px}.ai-message{max-width:86%;padding:11px 14px;border-radius:14px;font-size:.84rem;line-height:1.55;white-space:pre-wrap}.ai-message.bot{align-self:flex-start;background:#eaf0f6;color:#1c2530;border-bottom-left-radius:2px}.ai-message.user{align-self:flex-end;background:var(--magenta);color:#fff;border-bottom-right-radius:2px}.ai-message.error{background:#fff0f0;color:#8c2931}.ai-message.typing{color:#64707d;font-style:italic}.ai-suggestions{padding:9px 14px;display:flex;gap:6px;overflow-x:auto;border-top:1px solid var(--hairline)}.ai-suggestions button{white-space:nowrap;border:1px solid #d7e0e8;background:#fff;color:var(--brand-pink);border-radius:999px;padding:7px 10px;font:600 .7rem "IBM Plex Sans Thai";cursor:pointer}.ai-form{margin:0 14px;display:grid;grid-template-columns:1fr 42px;gap:8px;align-items:end;border:1px solid #d7e0e8;border-radius:14px;padding:7px;background:#fff}.ai-form:focus-within{outline:2px solid var(--magenta);outline-offset:2px}.ai-form textarea{border:0;outline:0;resize:none;padding:8px;font:400 .84rem "IBM Plex Sans Thai";max-height:90px}.ai-form button{width:40px;height:40px;border:0;border-radius:8px;background:var(--plum);color:#fff;display:grid;place-items:center;cursor:pointer}.ai-form button .icon{width:18px}.ai-form.loading button{opacity:.5;pointer-events:none}.ai-note{font-size:.61rem;color:#6a7787;text-align:center;margin:8px 12px 11px}
@media(max-width:600px){.ai-toggle{right:14px;bottom:14px}.ai-toggle>span:last-child{display:none}.ai-toggle{padding:8px}.ai-assistant{right:8px;bottom:72px;width:calc(100vw - 16px);height:min(620px,calc(100vh - 90px));border-radius:14px}}

/* Multi-page nav dropdowns */
main [id]{scroll-margin-top:148px}
.nav-item{position:relative;display:flex;align-items:center}
.nav-item>a:after{content:"⌄";display:inline-block;margin-left:6px;font-size:.7rem;color:rgba(255,255,255,.65);transition:transform .2s var(--ease)}
.nav-item:hover>a:after,.nav-item:focus-within>a:after{transform:rotate(180deg)}
.nav-dropdown{position:absolute;top:100%;left:0;margin-top:14px;min-width:250px;background:#fff;border-radius:4px;box-shadow:0 1px 2px rgba(7,20,42,.07),0 24px 50px rgba(6,14,26,.22);padding:8px;opacity:0;visibility:hidden;transform:translateY(8px);transition:.2s var(--ease);z-index:70}
.nav-item:hover>.nav-dropdown,.nav-item:focus-within>.nav-dropdown{opacity:1;visibility:visible;transform:none}
.nav-dropdown a{display:block;padding:11px 14px;border-radius:2px;color:var(--ink-2);font-size:.83rem;font-weight:500}
.nav-dropdown a:hover{background:var(--blush);color:var(--magenta)}
.nav-wrap nav>a.active,.nav-item>a.active{color:#fff;position:relative}
.nav-wrap nav>a.active:before{content:"";position:absolute;left:0;right:0;bottom:-30px;height:3px;background:var(--magenta)}
@media(max-width:900px){
  .nav-item{display:block;width:100%}
  .nav-item>a:after{float:right;margin-top:4px}
  .nav-dropdown{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;background:rgba(255,255,255,.04);margin:0 0 6px;padding-left:10px}
  .nav-dropdown a{color:rgba(255,255,255,.82);padding:10px 14px}
  .nav-dropdown a:hover{background:rgba(255,255,255,.08);color:#fff}
  .nav-wrap nav>a.active:before{display:none}
}

/* Inner page hero banner */
.page-hero{background:var(--plum);color:#fff;padding:60px 0 52px;position:relative;overflow:hidden}
.page-hero:before{content:"";position:absolute;inset:0;z-index:0;background:radial-gradient(circle at 85% 0%,rgba(200,30,111,.35),transparent 45%)}
.page-hero .container{position:relative;z-index:1}
.page-hero .eyebrow{color:#cfe0f0;font-size:.76rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase}
.page-hero h1{font-size:clamp(2.1rem,4vw,3.1rem);letter-spacing:-.03em;margin:14px 0 10px;line-height:1.08}
.page-hero p{color:rgba(255,255,255,.82);max-width:640px;font-size:1.02rem}
.breadcrumb{display:flex;gap:8px;align-items:center;font-size:.78rem;color:rgba(255,255,255,.6);margin-bottom:12px}
.breadcrumb a{color:rgba(255,255,255,.85)}.breadcrumb a:hover{color:#fff}
.intro-more{margin-top:26px;display:inline-block}

/* Page sub-nav (jump links between subsections) */
.subnav{position:sticky;top:130px;z-index:40;background:#fff;border-bottom:1px solid var(--hairline)}
.subnav .container{display:flex;gap:8px;overflow-x:auto;padding:14px 0}
.subnav a{white-space:nowrap;padding:8px 16px;border-radius:999px;font:600 .8rem "IBM Plex Sans Thai",sans-serif;color:var(--ink-2);background:var(--blush)}
.subnav a:hover{background:var(--magenta);color:#fff}
@media(max-width:900px){.subnav{top:78px}}

/* About page */
.about-block{padding:88px 0}
.about-block:nth-child(even){background:var(--blush)}
.about-grid{display:grid;grid-template-columns:.55fr 1fr;gap:70px;align-items:start}
.about-grid h2{font-size:clamp(2rem,3.4vw,2.8rem);letter-spacing:-.04em;margin:10px 0 20px}
.about-grid .lead{color:#5c6774;font-size:1.06rem;line-height:1.8}
.about-facts{display:grid;gap:0;border:1px solid var(--hairline);border-radius:4px;overflow:hidden;background:#fff}
.about-facts div{padding:20px 22px;border-bottom:1px solid var(--hairline)}
.about-facts div:last-child{border-bottom:0}
.about-facts b{display:block;color:var(--magenta);font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;margin-bottom:6px}
.map-embed{position:relative;padding-top:48%;border-radius:4px;overflow:hidden;box-shadow:var(--shadow);margin-top:20px}
.contact-map{margin-top:26px}
.map-embed iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.vision-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:20px}
.vision-card{background:#fff;border:1px solid var(--hairline);border-radius:4px;padding:32px}
.vision-card .icon{color:var(--magenta);width:30px;height:30px;margin-bottom:16px}
.vision-card h3{font-size:1.15rem;margin-bottom:10px}
.vision-card p{color:#5c6774;font-size:.92rem}
@media(max-width:900px){.about-grid{grid-template-columns:1fr;gap:32px}.vision-grid{grid-template-columns:1fr}}

/* Curriculum page */
.curriculum-note{background:var(--blush);border-left:4px solid var(--magenta);padding:18px 22px;border-radius:2px;color:#4a5560;font-size:.9rem;margin-top:24px}
.curriculum-note a{color:var(--magenta);font-weight:600}

/* Downloads page */
.download-groups{display:grid;gap:44px}
.download-group h2{font-size:1.4rem;margin-bottom:4px}
.download-group>p{color:#5c6774;font-size:.9rem;margin-bottom:8px}

/* News page filters */
.filters{margin-bottom:34px;flex-wrap:wrap;width:fit-content}
.news-empty-state{padding:60px 20px;text-align:center;color:#5c6774;background:#fff;border:1px solid var(--hairline);border-radius:4px}

/* Content icons */
.stat .stat-icon{width:26px;height:26px;color:#7fb3e0;margin:0 auto 12px;display:block}
.subject-card>.subject-icon{width:28px;height:28px;color:currentColor;opacity:.85;margin-bottom:14px;display:block}
.faq-card>.faq-icon{width:24px;height:24px;color:var(--magenta);display:block;margin-bottom:2px}
.faq-card h3{margin-top:16px}
.career-row{grid-template-columns:52px 40px 1fr 1fr 30px}
.career-icon{color:var(--magenta);width:22px;height:22px}
.career-row>.career-arrow{transition:.2s}
.career-row:hover>.career-arrow{transform:translateX(4px)}
.download-group h2{display:flex;align-items:center;gap:10px}
.download-icon{width:22px;height:22px;color:var(--magenta)}
@media(max-width:900px){.career-row{grid-template-columns:34px 30px 1fr 30px}.career-row>span{grid-column:1;grid-row:1}.career-row>.career-icon{grid-column:2;grid-row:1}.career-row h3{grid-column:3;grid-row:1}.career-row p{grid-column:1/4;grid-row:2}.career-row>.career-arrow{grid-column:4;grid-row:1/3}}

/* Location page — photo + centered info block, map, "view larger" link (TSU skcampus.php pattern) */
.location-row{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.location-photo img{width:100%;border-radius:4px;box-shadow:var(--shadow);display:block}
.location-detail{text-align:center}
.location-detail h2{font-size:1.7rem;letter-spacing:-.02em;line-height:1.3;margin-bottom:18px}
.location-divider{display:flex;align-items:center;justify-content:center;gap:14px;color:var(--magenta);margin-bottom:18px}
.location-divider:before,.location-divider:after{content:"";width:44px;height:1px;background:var(--hairline)}
.location-divider .icon{width:20px;height:20px}
.location-address,.location-phone{color:#5c6774;line-height:1.8;margin:4px 0}
.location-website{margin-top:8px}
.location-website a{color:var(--magenta);font-weight:600}
.map-title{text-align:center;font-size:clamp(1.6rem,3vw,2.2rem);letter-spacing:-.03em;margin-bottom:32px}
.map-wrap{max-width:1000px;margin-inline:auto}
.location-map{padding-top:42%}
.map-larger-link{display:inline-flex;align-items:center;gap:8px;margin-top:20px;color:var(--magenta);font-weight:600;font-size:.92rem}
.map-larger-link:hover{text-decoration:underline}
@media(max-width:900px){.location-row{grid-template-columns:1fr;gap:32px}.location-map{padding-top:75%}}

/* Homepage video showcase */
.hero-video{background:#1d0b18}.hero-video img{position:absolute;inset:0;z-index:0}.hero-video iframe{position:absolute;z-index:1;left:50%;top:50%;width:177.7778vh;min-width:100%;height:56.25vw;min-height:100%;transform:translate(-50%,-50%);border:0;pointer-events:none;opacity:0;transition:opacity .9s ease}.hero-video iframe.is-playing{opacity:1}.hero-watch{display:inline-flex;align-items:center;gap:9px;color:#fff;font-weight:700;font-size:.74rem;white-space:nowrap}.hero-watch>span{display:grid;place-items:center;width:34px;height:34px;border:1px solid rgba(255,255,255,.45);border-radius:50%;font-size:.58rem;padding-left:2px;transition:.25s}.hero-watch:hover>span{background:#fff;color:var(--magenta);transform:scale(1.08)}
.video-showcase{background:var(--plum)}
.video-showcase .mini-label{color:var(--rose)}
.video-showcase .section-head h2{color:#fff}
.video-showcase .section-head>div>p{color:#b9c8d8}
.video-frame{position:relative;max-width:960px;margin:0 auto;aspect-ratio:16/9;border-radius:4px;overflow:hidden;box-shadow:0 1px 2px rgba(7,20,42,.07),0 30px 70px rgba(6,14,26,.4);background:#000;cursor:pointer}
.video-frame img{width:100%;height:100%;object-fit:cover;display:block;transition:opacity .25s var(--ease)}
.video-frame:hover img{opacity:.8}
.video-frame iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.video-play{position:absolute;inset:0;margin:auto;width:76px;height:76px;border-radius:50%;background:rgba(255,255,255,.95);border:0;display:grid;place-items:center;color:var(--magenta);pointer-events:none;transition:.25s var(--ease)}
.video-play .icon{width:28px;height:28px;margin-left:4px}
.video-frame:hover .video-play{transform:scale(1.08);background:#fff}
.video-frame:focus-visible{outline:3px solid var(--rose);outline-offset:4px}
@media(max-width:600px){.video-play{width:58px;height:58px}.video-play .icon{width:22px;height:22px}}

/* Student information systems page */
.system-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.system-card{background:#fff;border:1px solid var(--hairline);border-radius:4px;padding:38px 32px;transition:.3s var(--ease)}
.system-card:hover{transform:translateY(-6px);box-shadow:0 1px 2px rgba(7,20,42,.07),0 24px 50px rgba(11,31,58,.14)}
.system-icon{width:32px;height:32px;color:var(--magenta);display:block;margin-bottom:20px}
.system-card h3{font-size:1.2rem;margin-bottom:10px}
.system-card p{color:#5c6774;font-size:.9rem;line-height:1.75;margin-bottom:22px}
.system-card a{display:inline-flex;align-items:center;gap:8px;font-weight:700;color:var(--plum);font-size:.85rem}
.system-card a:hover{color:var(--magenta)}
.career-chip-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.career-chip{background:#fff;border:1px solid var(--hairline);border-radius:4px;padding:26px 16px;text-align:center;transition:.25s var(--ease)}
.career-chip .icon{width:26px;height:26px;color:var(--magenta);margin-bottom:12px}
.career-chip span{display:block;font-size:.85rem;font-weight:600;color:var(--ink-2)}
.career-chip:hover{background:var(--plum);transform:translateY(-4px);box-shadow:0 1px 2px rgba(7,20,42,.07),0 16px 32px rgba(11,31,58,.16)}
.career-chip:hover .icon{color:#fff}
.career-chip:hover span{color:#fff}
@media(max-width:900px){.system-grid{grid-template-columns:1fr}.career-chip-grid{grid-template-columns:repeat(2,1fr)}}

/* Live faculty news */
.news-art>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0;transition:transform .5s var(--ease)}.news-card:hover .news-art>img{transform:scale(1.045)}.news-art>img+span{position:relative;z-index:2}.news-art:has(>img):before{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(0deg,rgba(8,20,40,.48),transparent 65%)}.news-source{display:block;color:var(--magenta);font-size:.68rem;font-weight:700;margin-bottom:5px}

/* Document center */
.download-hero{position:relative;overflow:hidden;background:linear-gradient(115deg,#081a30 0%,#0b2545 58%,var(--brand-pink-deep) 100%);color:#fff;padding:82px 0 76px}.download-hero:before{content:"DBT";position:absolute;right:-2vw;bottom:-6vw;font:800 19vw/.8 Manrope,sans-serif;letter-spacing:-.08em;color:rgba(255,255,255,.035)}.download-hero:after{content:"";position:absolute;width:430px;height:430px;border:1px solid rgba(255,255,255,.1);border-radius:50%;right:10%;top:-310px;box-shadow:0 0 0 70px rgba(255,255,255,.025)}
.download-hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1fr 260px;gap:90px;align-items:end}.download-hero .breadcrumb{margin-bottom:24px}.download-hero .eyebrow{color:#8fc1ea}.download-hero h1{font-size:clamp(3rem,5vw,5.4rem);line-height:.98;letter-spacing:-.055em;margin:18px 0 24px}.download-hero h1 em{font-style:normal;color:var(--brand-pink-tint)}.download-hero p{max-width:650px;color:#d5dfeb;font-size:1.05rem;line-height:1.8;margin:0}.download-hero-summary{border-left:1px solid rgba(255,255,255,.22);padding:10px 0 10px 32px}.download-hero-summary>strong{display:block;font:800 5.5rem/.9 Manrope,sans-serif;letter-spacing:-.08em}.download-hero-summary>span{display:block;color:var(--brand-pink-tint);font-weight:700;margin:9px 0 22px}.download-hero-summary>div{font-size:.78rem;color:#bdcad9}.download-hero-summary b{color:#fff}.download-hero-summary i{display:inline-block;width:3px;height:3px;background:var(--brand-pink-tint);border-radius:50%;margin:0 10px 3px}
.document-center{background:linear-gradient(180deg,#f6f8fa,#eef2f6)}.document-toolbar{background:#fff;border:1px solid var(--hairline);box-shadow:0 1px 2px rgba(7,20,42,.07),0 22px 55px rgba(11,31,58,.09);padding:22px;margin-top:-176px;margin-bottom:84px;position:relative;z-index:3}.document-search{height:70px;display:flex;align-items:center;gap:16px;border-bottom:1px solid var(--hairline);padding:0 18px}.document-search:focus-within{outline:2px solid var(--magenta);outline-offset:-2px}.document-search>.icon{width:25px;height:25px;color:var(--magenta)}.document-search input{flex:1;border:0;outline:0;background:transparent;font-size:1.05rem;color:var(--ink-2);min-width:0}.document-search input::placeholder{color:#8a95a2}.document-search kbd{font:600 .66rem Manrope,sans-serif;letter-spacing:.06em;color:#69727c;border:1px solid #dce1e7;border-radius:2px;padding:5px 8px;background:#f7f8fa}
.document-filters{display:flex;gap:8px;flex-wrap:wrap;padding:18px 18px 0}.document-filters button{border:1px solid var(--hairline);border-radius:999px;background:#fff;color:#4d5966;padding:9px 14px;cursor:pointer;font-size:.82rem;font-weight:600;transition:.2s}.document-filters button span{display:inline-grid;place-items:center;min-width:22px;height:22px;margin-left:6px;border-radius:50%;background:#eef2f6;color:#596573;font:700 .65rem Manrope,sans-serif}.document-filters button:hover,.document-filters button.active{background:var(--plum);border-color:var(--plum);color:#fff}.document-filters button.active span{background:rgba(255,255,255,.15);color:#fff}
.document-results-head{display:flex;justify-content:space-between;align-items:end;margin-bottom:34px}.document-results-head h2{font-size:clamp(2rem,3.6vw,3.4rem);letter-spacing:-.04em;margin:8px 0 0}.document-results-head>p{color:#687482;font-size:.88rem;border-bottom:2px solid var(--magenta);padding-bottom:6px}.document-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.document-card{min-height:370px;background:#fff;border:1px solid var(--hairline);padding:28px;display:flex;flex-direction:column;position:relative;overflow:hidden;transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s}.document-card[hidden]{display:none}.document-card:before{content:"";position:absolute;left:0;top:0;width:4px;height:0;background:var(--magenta);transition:height .35s var(--ease)}.document-card:hover{transform:translateY(-7px);box-shadow:0 1px 2px rgba(7,20,42,.07),0 25px 55px rgba(11,31,58,.13);border-color:transparent}.document-card:hover:before{height:100%}
.document-card-top{display:flex;align-items:center;justify-content:space-between}.document-number{font:700 .7rem Manrope,sans-serif;color:#6d757d;letter-spacing:.1em}.document-type{background:#eef2f6;color:var(--magenta);font:800 .64rem Manrope,sans-serif;letter-spacing:.08em;padding:6px 9px;border-radius:2px}.document-card-icon{display:grid;place-items:center;width:58px;height:58px;background:var(--blush);color:var(--magenta);border-radius:50%;margin:34px 0 28px}.document-card-icon .icon{width:26px;height:26px}.document-card-copy{flex:1}.document-card-copy small{color:var(--magenta);font-size:.72rem;font-weight:700}.document-card h3{font-size:1.25rem;line-height:1.4;margin:8px 0 10px;color:var(--plum)}.document-card p{color:#687482;font-size:.88rem;line-height:1.7;margin-bottom:22px}.document-download{display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--hairline);padding-top:18px;color:var(--plum);font-size:.84rem;font-weight:700}.document-download .icon{width:18px;height:18px;color:var(--magenta);transition:transform .2s}.document-download:hover{color:var(--magenta)}.document-download:hover .icon{transform:translateY(3px)}
.document-empty{text-align:center;padding:70px 20px;background:#fff;border:1px solid var(--hairline)}.document-empty>.icon{width:38px;height:38px;color:var(--magenta);margin-bottom:15px}.document-empty h3{font-size:1.3rem;margin-bottom:8px}.document-empty p{color:#687482}.document-empty button{border:0;background:var(--plum);color:#fff;padding:12px 18px;font-weight:700;cursor:pointer}.document-help{display:flex;align-items:center;gap:30px;background:var(--plum);color:#fff;padding:30px 34px;margin-top:54px}.document-help>div{display:flex;align-items:center;gap:16px}.document-help>div>.icon{color:var(--brand-pink-tint);width:30px;height:30px;flex:none}.document-help>div span{display:flex;flex-direction:column}.document-help>div small{color:#aebfd1}.document-help>p{margin:0 0 0 auto;color:#c7d3df;font-size:.88rem}.document-help>a{display:flex;align-items:center;gap:10px;border:1px solid rgba(255,255,255,.28);padding:11px 16px;white-space:nowrap;font-weight:700;font-size:.82rem}.document-help>a:hover{background:#fff;color:var(--plum)}.document-help>a .icon{width:16px}
@media(max-width:900px){.download-hero-grid{grid-template-columns:1fr;gap:40px}.download-hero-summary{display:none}.document-toolbar{margin-top:-145px}.document-grid{grid-template-columns:1fr 1fr}.document-help{align-items:flex-start;flex-wrap:wrap}.document-help>p{margin-left:0}.document-help>a{margin-left:auto}}
@media(max-width:600px){.download-hero{padding:58px 0 54px}.download-hero h1{font-size:2.7rem}.download-hero p{font-size:.94rem}.document-toolbar{margin-top:-118px;margin-bottom:62px;padding:14px}.document-search{height:62px;padding:0 8px}.document-search kbd{display:none}.document-filters{flex-wrap:nowrap;overflow-x:auto;padding:14px 4px 2px}.document-filters button{white-space:nowrap}.document-results-head{align-items:flex-start;gap:20px}.document-results-head h2{font-size:2.2rem}.document-results-head>p{white-space:nowrap}.document-grid{grid-template-columns:1fr}.document-card{min-height:330px}.document-help{padding:25px}.document-help>p{width:100%}.document-help>a{margin-left:0}}

/* Thai / English language control */
.language-switcher{display:flex;align-items:center;gap:6px;padding-left:16px;border-left:1px solid rgba(255,255,255,.24);color:#fff}.language-switcher>.icon{width:15px;height:15px}.language-switcher select{appearance:none;border:0;background:transparent;color:#fff;font:700 .72rem Manrope,sans-serif;cursor:pointer;padding:2px 17px 2px 2px;background-image:linear-gradient(45deg,transparent 50%,#fff 50%),linear-gradient(135deg,#fff 50%,transparent 50%);background-position:calc(100% - 7px) 8px,calc(100% - 3px) 8px;background-size:4px 4px,4px 4px;background-repeat:no-repeat}.language-switcher select:focus-visible{outline:2px solid #fff;outline-offset:3px}.language-switcher option{color:#1b2430;background:#fff}
.theme-toggle{display:grid;place-items:center;width:26px;height:26px;margin-left:12px;padding:0;border:0;background:none;color:#fff;cursor:pointer;flex:none}.theme-toggle .icon{width:16px;height:16px;position:absolute;transition:opacity .25s,transform .35s}.theme-toggle-moon{opacity:0;transform:rotate(-40deg) scale(.7)}[data-theme="dark"] .theme-toggle-sun{opacity:0;transform:rotate(40deg) scale(.7)}[data-theme="dark"] .theme-toggle-moon{opacity:1;transform:none}.theme-toggle:hover{opacity:.75}.theme-toggle:focus-visible{outline:2px solid #fff;outline-offset:3px;border-radius:2px}#google_translate_element{position:absolute!important;width:1px!important;height:1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important}.goog-te-banner-frame,.skiptranslate iframe{display:none!important}body{top:0!important}.goog-logo-link,.goog-te-gadget{font-size:0!important}
@media(max-width:900px){.utility .container{height:42px}.utility-links>a{display:none}.language-switcher{border-left:0;padding-left:0}.language-switcher select{font-size:.76rem}}

/* Dynamic people directory */
.people-directory{background:linear-gradient(135deg,#081a30,#112f52);color:#fff;position:relative;overflow:hidden}.people-directory:before{content:"DBT";position:absolute;right:-2vw;top:50px;font:800 16vw/.8 Manrope;color:rgba(255,255,255,.035);letter-spacing:-.08em}.people-intro{position:relative;z-index:1;text-align:center;max-width:720px;margin:0 auto 54px}.people-intro .mini-label{color:var(--brand-pink-tint)}.people-intro h2{font-size:clamp(2.5rem,4vw,4.2rem);letter-spacing:-.05em;margin:10px 0 18px}.people-intro p{color:#b9c8d8}.leadership-grid{position:relative;z-index:1;display:grid;grid-template-columns:repeat(2,minmax(260px,390px));justify-content:center;gap:28px}.profile-card{background:#fff;color:var(--ink-2);border:1px solid var(--hairline);border-radius:4px;overflow:hidden;transition:transform .35s var(--ease),box-shadow .35s var(--ease)}.profile-card:hover{transform:translateY(-7px);box-shadow:0 1px 2px rgba(7,20,42,.07),0 28px 60px rgba(5,18,34,.18)}.profile-photo{position:relative;overflow:hidden;background:#dfe6ed;aspect-ratio:4/5}.profile-photo img{width:100%;height:100%;object-fit:cover;object-position:top;transition:transform .5s var(--ease)}.profile-card:hover .profile-photo img{transform:scale(1.025)}.profile-photo>span{position:absolute;left:0;right:0;bottom:0;padding:36px 20px 15px;background:linear-gradient(transparent,rgba(8,26,48,.88));color:#fff;font-size:.75rem;font-weight:700}.profile-copy{padding:22px}.profile-copy h3{font-size:1.12rem;line-height:1.4;margin:0}.profile-copy details{border-top:1px solid var(--hairline);margin-top:17px;padding-top:14px}.profile-copy summary{list-style:none;display:flex;align-items:center;justify-content:space-between;color:var(--magenta);font-size:.78rem;font-weight:700;cursor:pointer}.profile-copy summary::-webkit-details-marker{display:none}.profile-copy summary span{font:400 1.25rem Manrope;transition:.2s}.profile-copy details[open] summary span{transform:rotate(45deg)}.profile-copy details p,.profile-copy details li,.profile-muted{font-size:.82rem;line-height:1.7;color:#637080}.profile-copy details p{margin:14px 0 8px}.profile-copy details ul{margin:10px 0 0;padding-left:18px}.profile-copy details li{margin-bottom:5px}.profile-muted{margin:12px 0 0}.profile-lead .profile-copy h3{font-size:1.35rem}.faculty-directory{background:#eef2f6}.faculty-directory .section-head>p{max-width:480px}.profile-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.officer-directory{background:#fff}.officer-grid{display:grid;grid-template-columns:repeat(3,minmax(250px,340px));justify-content:center;gap:22px}.people-empty{text-align:center;color:#637080;padding:40px}.officer-directory .people-intro h2{color:var(--plum)}.officer-directory .people-intro .mini-label{color:var(--magenta)}.officer-directory .people-intro p{color:#637080}
@media(max-width:1000px){.profile-grid{grid-template-columns:repeat(3,1fr)}}@media(max-width:760px){.leadership-grid{grid-template-columns:repeat(2,1fr)}.profile-grid{grid-template-columns:repeat(2,1fr)}.officer-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:520px){.leadership-grid,.profile-grid,.officer-grid{grid-template-columns:1fr}.profile-card{max-width:380px;width:100%;margin-inline:auto}.profile-photo{aspect-ratio:4/4.7}}

/* Student & faculty achievements */
.achievement-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.achievement-card{background:#fff;border:1px solid var(--hairline);border-radius:4px;overflow:hidden;display:flex;flex-direction:column;transition:transform .3s var(--ease),box-shadow .3s var(--ease)}
.achievement-card.hidden{display:none}
.achievement-card:hover{transform:translateY(-6px);box-shadow:0 1px 2px rgba(7,20,42,.07),0 24px 50px rgba(11,31,58,.14)}
.achievement-media{height:180px;position:relative}
.achievement-media img{width:100%;height:100%;object-fit:cover;display:block}
.achievement-media-icon{display:grid;place-items:center;background:linear-gradient(135deg,var(--plum),#173a63)}
.achievement-media-icon .icon{width:42px;height:42px;color:var(--brand-pink-tint)}
.achievement-body{padding:24px;display:flex;flex-direction:column;flex:1}
.achievement-tag{display:inline-block;background:var(--blush);color:var(--magenta);font:700 .66rem Manrope,sans-serif;letter-spacing:.06em;padding:5px 10px;border-radius:999px;width:fit-content;margin-bottom:10px}
.achievement-body time{display:block;font-size:.72rem;color:#6e7782;margin-bottom:8px}
.achievement-body h3{font-size:1.1rem;line-height:1.4;margin-bottom:6px}
.achievement-person{color:var(--plum);font-weight:600;font-size:.85rem;margin-bottom:8px}
.achievement-body>p:not(.achievement-person){color:#5c6774;font-size:.88rem;line-height:1.7;margin-bottom:16px}
.achievement-body a{margin-top:auto;display:inline-flex;align-items:center;gap:8px;font-weight:700;color:var(--plum);font-size:.85rem}
.achievement-body a:hover{color:var(--magenta)}
@media(max-width:900px){.achievement-grid{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.achievement-grid{grid-template-columns:1fr}}

/* AI grounded answer citations */
.ai-message.bot{white-space:pre-wrap}.ai-sources{display:flex;flex-direction:column;gap:5px;border-top:1px solid rgba(11,31,58,.13);margin-top:10px;padding-top:9px;white-space:normal}.ai-sources>strong{font-size:.66rem;color:#59677a;text-transform:uppercase;letter-spacing:.06em}.ai-sources>a{display:block;color:var(--magenta);font-size:.7rem;font-weight:700;text-decoration:none;line-height:1.4}.ai-sources>a:hover{text-decoration:underline}
.ai-handoff{margin-top:9px;padding-top:9px;border-top:1px solid rgba(11,31,58,.13);white-space:normal}
.ai-handoff.sent{font-size:.74rem;color:#1c5b38;font-weight:600}
.ai-handoff-open{border:1px solid #d3a4c2;background:#fff;color:#a8185c;border-radius:999px;padding:7px 13px;font:700 .72rem "IBM Plex Sans Thai",sans-serif;cursor:pointer}
.ai-handoff-open:hover{background:#fdf0f7}
.ai-handoff-form{display:grid;gap:7px;margin-top:4px}
.ai-handoff-form input,.ai-handoff-form textarea{border:1px solid #cfd9e3;border-radius:4px;padding:8px 10px;font:400 .76rem "IBM Plex Sans Thai",sans-serif;background:#fff;color:#1c2530;resize:vertical}
.ai-handoff-form input:focus,.ai-handoff-form textarea:focus{outline:2px solid var(--magenta);outline-offset:1px}
.ai-handoff-form button{border:0;border-radius:4px;background:var(--plum);color:#fff;padding:9px 12px;font:700 .74rem "IBM Plex Sans Thai",sans-serif;cursor:pointer}
.ai-handoff-form button:disabled{opacity:.55;cursor:default}
.ai-handoff-status{margin:0;font-size:.7rem;color:#8f1d16;min-height:1em}
.ai-inline-link{color:var(--magenta);font-weight:700;text-decoration:underline;word-break:break-all}
.ai-feedback{display:flex;align-items:center;gap:7px;margin-top:9px;padding-top:8px;border-top:1px solid rgba(11,31,58,.13);white-space:normal}
.ai-feedback>span{font-size:.68rem;color:#59677a}
.ai-feedback>button{width:28px;height:28px;flex:none;display:grid;place-items:center;padding:0;border:1px solid rgba(11,31,58,.16);border-radius:4px;background:#fff;font-size:.82rem;line-height:1;cursor:pointer;transition:background .18s,border-color .18s,transform .18s}
.ai-feedback>button:hover:not(:disabled){background:#f0f4f8;border-color:var(--magenta);transform:translateY(-1px)}
.ai-feedback>button:disabled{cursor:default;opacity:.45}
.ai-feedback>button.picked{opacity:1;border-color:var(--magenta);background:var(--blush)}


/* Faculty achievements */
.achievement-hero{position:relative;overflow:hidden;background:linear-gradient(112deg,#07182d 0%,#0d2b4d 57%,#69172b 100%);color:#fff;padding:88px 0}.achievement-hero:before{content:"AWARDS";position:absolute;right:-3vw;bottom:-3vw;font:800 15vw/.8 Manrope,sans-serif;color:rgba(255,255,255,.035);letter-spacing:-.08em}.achievement-hero>.container{position:relative;z-index:1;display:grid;grid-template-columns:1fr 220px;gap:90px;align-items:end}.achievement-hero .breadcrumb{grid-column:1/-1;margin-bottom:5px}.achievement-hero-copy .eyebrow{color:var(--brand-pink-tint)}.achievement-hero h1{font-size:clamp(3.2rem,5.8vw,6rem);line-height:.92;letter-spacing:-.06em;margin:20px 0 26px}.achievement-hero h1 em{font-style:normal;color:#91bde5}.achievement-hero p{max-width:680px;color:#cad8e5;font-size:1.04rem;line-height:1.8}.achievement-count{border-left:1px solid rgba(255,255,255,.22);padding-left:30px}.achievement-count strong{display:block;font:800 4.7rem/.9 Manrope,sans-serif}.achievement-count span{display:block;color:var(--brand-pink-tint);font-weight:700;margin:10px 0 3px}.achievement-count small{color:#9fb4ca}.achievement-stream{background:linear-gradient(180deg,#f7f9fb,#edf2f6)}
.achievement-feature{display:grid;grid-template-columns:1.25fr .75fr;min-height:440px;background:#fff;box-shadow:0 1px 2px rgba(7,20,42,.07),0 28px 70px rgba(8,26,48,.13);margin-bottom:95px}.achievement-feature-image{position:relative;overflow:hidden;background:var(--plum);min-height:420px}.achievement-feature-image img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;transition:transform .6s var(--ease)}.achievement-feature:hover img{transform:scale(1.025)}.achievement-feature-image>span{position:absolute;left:24px;top:24px;background:var(--magenta);color:#fff;padding:7px 11px;font-size:.72rem;font-weight:700}.achievement-feature>div{padding:clamp(34px,5vw,62px);display:flex;flex-direction:column;justify-content:center}.achievement-feature time{display:block;color:#6a7683;font-size:.75rem;margin:13px 0}.achievement-feature h2{font-size:clamp(1.8rem,3vw,3rem);line-height:1.25;letter-spacing:-.035em;margin-bottom:18px}.achievement-feature p{color:#647180;line-height:1.8}.achievement-feature .button{align-self:flex-start;margin-top:12px}
.achievement-heading{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:38px}.achievement-heading h2{font-size:clamp(2.3rem,4vw,4rem);letter-spacing:-.05em;margin:7px 0 0}.achievement-heading>a{color:var(--magenta);font-weight:700;font-size:.84rem;border-bottom:1px solid currentColor}.achievement-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.achievement-card{background:#fff;border:1px solid var(--hairline);transition:.35s var(--ease)}.achievement-card:hover{transform:translateY(-8px);box-shadow:0 1px 2px rgba(7,20,42,.07),0 25px 55px rgba(8,26,48,.13)}.achievement-image{position:relative;display:block;aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg,var(--plum),var(--magenta))}.achievement-image img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}.achievement-card:hover .achievement-image img{transform:scale(1.04)}.achievement-image>b{position:absolute;right:15px;bottom:10px;font:800 2.6rem/.8 Manrope;color:rgba(255,255,255,.82);text-shadow:0 2px 10px rgba(0,0,0,.25)}.achievement-image>span{position:absolute;inset:0;display:grid;place-items:center;color:#fff;font:800 3rem Manrope}.achievement-card>div{padding:24px}.achievement-meta{display:flex;align-items:center;color:var(--magenta);font-size:.68rem;font-weight:700}.achievement-meta i{width:3px;height:3px;border-radius:50%;background:#9aa5b0;margin:0 8px}.achievement-card h3{font-size:1.18rem;line-height:1.45;margin:12px 0}.achievement-card p{color:#687482;font-size:.84rem;line-height:1.7;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.achievement-card>div>a{display:flex;align-items:center;gap:8px;font-size:.8rem;font-weight:700;color:var(--plum);margin-top:17px}.achievement-card>div>a:hover{color:var(--magenta)}.achievement-card>div>a .icon{width:15px}.achievement-empty{text-align:center;background:#fff;padding:70px 30px;border:1px solid var(--hairline)}.achievement-empty p{color:#687482}
@media(max-width:900px){.achievement-feature{grid-template-columns:1fr}.achievement-feature-image{min-height:auto;aspect-ratio:16/10}.achievement-grid{grid-template-columns:1fr 1fr}}@media(max-width:600px){.achievement-hero{padding:60px 0}.achievement-hero>.container{grid-template-columns:1fr;gap:20px}.achievement-count{display:none}.achievement-hero h1{font-size:3rem}.achievement-feature{margin-bottom:70px}.achievement-feature>div{padding:30px 24px}.achievement-heading{align-items:flex-start;flex-direction:column}.achievement-grid{grid-template-columns:1fr}}
.hero-backdrop picture{position:absolute;inset:0;width:100%;height:100%}.hero-backdrop picture img{width:100%;height:100%;object-fit:cover}.location-photo picture,.location-photo picture img{display:block;width:100%}

/* 404 error page */
.error-hero{position:relative;overflow:hidden}
.error-code{display:block;position:absolute;right:4%;bottom:-8%;font:800 13rem/.8 Manrope,sans-serif;color:rgba(255,255,255,.06);letter-spacing:-.05em;pointer-events:none}
.error-hero .eyebrow{margin-top:6px}
@media(max-width:600px){.error-code{font-size:6rem;right:6%;bottom:-4%}}

/* Personnel portraits: use the supplied DBT artwork consistently behind every card. */
.profile-photo{background:#fff url('../images/staff/dbt-personnel-background.jpg') center/cover no-repeat}
.profile-photo picture{display:block;width:100%;height:100%}

/* Site-wide search */
.search-hero-form{display:flex;align-items:center;gap:14px;background:#fff;border-radius:4px;padding:16px 20px;margin-top:28px;max-width:720px;box-shadow:0 1px 2px rgba(7,20,42,.07),0 20px 50px rgba(6,14,26,.25)}
.search-hero-form>.icon{width:22px;height:22px;color:var(--magenta);flex:none}
.search-hero-form input{flex:1;border:0;outline:0;font:500 1.05rem "IBM Plex Sans Thai",sans-serif;color:var(--ink-2);min-width:0}
.search-hero-form button{border:0;background:var(--plum);color:#fff;padding:10px 20px;border-radius:2px;font-weight:700;cursor:pointer;flex:none}
.search-hero-form button:hover{background:var(--magenta)}
.search-meta{color:#5c6774;font-size:.92rem;margin-bottom:24px}
.search-meta strong{color:var(--ink-2)}
.search-result-list{display:flex;flex-direction:column;gap:4px;max-width:820px}
.search-result{padding:24px 0;border-bottom:1px solid var(--hairline)}
.search-result.hidden{display:none}
.search-result-type{display:inline-block;background:var(--blush);color:var(--magenta);font:700 .66rem Manrope,sans-serif;letter-spacing:.06em;padding:4px 10px;border-radius:999px;margin-bottom:10px}
.search-result h3{font-size:1.15rem;margin:0 0 6px}
.search-result h3 a{color:var(--plum)}
.search-result h3 a:hover{color:var(--magenta);text-decoration:underline}
.search-result-url{color:#2f7a3f;font-size:.78rem;margin-bottom:8px}
.search-result-url::before{content:"› "}
.search-result p{color:#5c6774;font-size:.9rem;line-height:1.7;margin:0}
.search-result mark{background:#fce8ee;color:var(--magenta);font-weight:700;padding:0 1px;border-radius:2px}
@media(max-width:600px){.search-hero-form{flex-wrap:wrap;padding:14px}.search-hero-form input{width:100%;order:1}.search-hero-form button{order:2;margin-left:auto}}