:root{--wine:#ad2454;--wine-dark:#780d2b;--pink:#faf0f4;--ink:#111420;--muted:#707684;--line:#e7e8ed;--font:'Noto Sans Thai',Tahoma,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;color:var(--ink);font:14px/1.55 var(--font);background:#fff}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}button{cursor:pointer}a{color:inherit;text-decoration:none}button{color:inherit}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #c95d87;outline-offset:4px}button{border:0;background:none}h1,h2,h3,p{margin:0}i{line-height:1}.container{width:90%;max-width:1400px;margin:auto}.site-header{background:#fff;border-bottom:1px solid #f3e7ec}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:64px}.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;color:var(--wine-dark)}.brand strong{display:block;font:700 28px/1.05 Arial,sans-serif;letter-spacing:-1px}.brand small{font:600 12px/1.3 Arial,sans-serif;letter-spacing:.25px;display:block}.crest{width:37px;height:48px;display:block;flex-shrink:0;background-image:url('../img/npru-logo.png');background-size:contain;background-position:center;background-repeat:no-repeat}.main-nav{display:flex;align-self:stretch;gap:30px}.main-nav a{display:flex;align-items:center;position:relative;font-size:14px}.main-nav a.active{color:var(--wine);font-weight:600}.main-nav a.active:before{content:'';position:absolute;top:0;left:-7px;right:-7px;height:3px;background:var(--wine);border-radius:0 0 2px 2px}.header-actions{display:flex;align-items:center;gap:23px}.icon-button{width:35px;height:35px;display:inline-grid;place-items:center;font-size:19px}.language{display:flex;gap:7px;align-items:center;font-size:13px}.outline-button{border:1px solid var(--wine);border-radius:11px;color:var(--wine);padding:8px 24px;white-space:nowrap}.outline-button:hover{background:var(--pink)}.menu-toggle{display:none}.hero{position:relative;overflow:hidden;background:#fcf4f6;min-height:340px;height:clamp(300px,29.5vw,400px)}.hero:before{content:'';position:absolute;left:-55px;top:10px;width:125px;height:125px;border:22px solid #f7e7ee;transform:rotate(45deg)}.hero-art{position:absolute;right:0;top:0;height:100%;width:51%;background-image:url('../img/courseware-reference.png');background-size:203.1746% 512%;background-position:100% 3.8835%;mask-image:linear-gradient(to right,transparent,#000 18%)}.hero-inner{position:relative;height:100%;display:flex;align-items:center}.hero-copy{width:56%;padding:24px 0}.eyebrow{display:inline-flex;gap:10px;align-items:center;background:#f7e8ee;border-radius:20px;color:var(--wine);font-size:12px;padding:5px 13px;margin-bottom:13px}.hero h1{font-size:clamp(27px,3.05vw,40px);font-weight:700;line-height:1.22;letter-spacing:-1.1px}.hero h1 span{color:var(--wine);white-space:nowrap}.hero-description{color:#5e6573;font-size:clamp(13px,1.4vw,17px);margin-top:12px;line-height:1.55}.hero-search{margin-top:23px;display:flex;align-items:center;padding:4px 4px 4px 18px;border:1px solid #eedde4;border-radius:40px;background:white;gap:12px;max-width:570px;box-shadow:0 3px 10px #76253a09}.hero-search i{font-size:18px;color:#424959}.hero-search input{width:100%;min-width:0;border:0;outline:none;background:transparent;font-size:14px;height:38px}.hero-search button,.primary-button{color:white;background:var(--wine);border-radius:25px;padding:10px 30px;font-weight:500}.hero-search button:hover,.primary-button:hover{background:var(--wine-dark)}.popular-tags{margin-top:12px;display:flex;gap:8px;align-items:center;flex-wrap:wrap;font-size:12px;color:#97224b}.popular-tags strong{font-weight:600}.popular-tags button{background:#f3dfe7;border-radius:20px;padding:4px 12px;color:#96204a}.popular-tags button:hover{background:#ebcada}.main-content{padding-top:21px}.categories{display:grid;grid-template-columns:repeat(8,minmax(0,1fr));gap:11px;margin-bottom:25px}.categories button{background:linear-gradient(120deg,#fbf2f6,#f9eff3);border:1px solid transparent;border-radius:12px;min-height:110px;padding:13px 5px;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:9px;transition:transform .2s,border-color .2s}.categories button:hover,.categories button.selected{transform:translateY(-3px);border-color:#d58aa5;background:#f7e7ed}.categories i{font-size:30px;color:var(--wine)}.categories span{font-size:13px;line-height:1.4}.categories button:last-child{color:var(--wine)}.categories button:last-child i{border-radius:100%;background:#f1dce5;padding:5px;font-size:24px}.course-section{margin-bottom:28px}.section-heading{display:flex;align-items:center;gap:17px;margin-bottom:15px;min-width:0}.section-icon{font-size:32px;color:#b32a5b}.section-heading h2{font-size:25px;line-height:1.35;font-weight:700;letter-spacing:-.7px}.section-heading p{font-size:14px;color:var(--muted)}.view-all{margin-left:auto;display:flex;gap:15px;align-items:center;white-space:nowrap;color:var(--wine);font-size:13px}.view-all:hover{color:var(--wine-dark);text-decoration:underline}.course-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.course-card{border:1px solid #ededf0;border-radius:9px;overflow:hidden;box-shadow:0 3px 6px #18213308;background:#fff;min-width:0;transition:transform .2s,box-shadow .2s}.course-card:hover{transform:translateY(-4px);box-shadow:0 8px 23px #632b4212}.course-open{display:flex;flex-direction:column;width:100%;height:100%;text-align:left;padding:0}.course-image{display:block;width:100%;aspect-ratio:2.2;position:relative;background-image:url('../img/courseware-reference.png');background-repeat:no-repeat;background-size:var(--image-size);background-position:var(--image-position);flex-shrink:0}.recommend-badge{position:absolute;left:11px;top:10px;background:#e84e60;color:white;border-radius:7px;font-size:12px;padding:3px 10px}.card-body{padding:12px 15px 13px;width:100%;display:flex;flex:1;flex-direction:column}.card-body h3{font-size:15px;line-height:1.4;font-weight:600;margin-bottom:7px;min-height:21px;letter-spacing:-.25px}.course-meta{display:flex;align-items:flex-start;gap:6px;color:var(--muted);font-size:12px;line-height:1.65}.course-meta i{margin-top:4px;font-size:12px;flex-shrink:0}.teacher i{color:var(--ink)}.badges{display:flex;gap:7px;align-items:center;margin-top:auto;padding-top:10px;flex-wrap:wrap}.badge{font-size:11px;line-height:1.4;padding:4px 7px;border-radius:6px;background:#edf2f8;color:#566477;white-space:nowrap;display:inline-flex;align-items:center;gap:5px}.badge.free{color:#05852f;background:#eaf9ef;font-weight:700}.split-sections{display:grid;grid-template-columns:1fr 1fr;gap:36px;position:relative}.split-sections:before{content:'';position:absolute;left:50%;top:0;bottom:28px;border-left:1px solid #f0e9ed}.compact{grid-template-columns:repeat(3,minmax(0,1fr));gap:11px}.compact .course-image{aspect-ratio:2.03}.compact .card-body{padding:10px 12px}.compact h3{font-size:14px;min-height:40px}.compact .teacher{display:none}.compact .course-meta{font-size:11px;margin-top:auto}.compact .badges{padding-top:9px;margin-top:0;gap:5px}.compact .badge{font-size:10px;padding:4px 6px}.new-icon{color:white;background:#b93262;border-radius:5px;font-size:11px;font-weight:700;padding:6px 4px;transform:rotate(-5deg)}.filters{display:grid;grid-template-columns:2fr repeat(5,1fr);gap:7px}.filter-search{display:flex;align-items:center;gap:10px;padding:0 12px;border:1px solid var(--line);border-radius:6px;min-width:0}.filter-search input{border:0;min-width:0;width:100%;background:transparent;height:37px;outline:none;font-size:12px}.filters select{border:1px solid var(--line);border-radius:6px;background:#fff;color:#444b5c;padding:8px 23px 8px 10px;font-size:12px;min-width:0;width:100%}.results-toolbar{display:flex;align-items:center;gap:12px;min-height:43px;font-size:12px;color:#626a7c}.view-switch{display:flex;gap:6px;margin-left:auto}.view-switch button{display:grid;place-items:center;font-size:19px;background:#f5f6f8;border-radius:5px;width:30px;height:29px;color:#697384}.view-switch button.selected{background:#f8e6ed;color:var(--wine)}.reset-filters{color:var(--wine);text-decoration:underline;font-size:12px}.catalogue .course-image{aspect-ratio:2.75}.pagination{display:flex;justify-content:center;gap:8px;margin-top:20px}.pagination button{min-width:35px;height:35px;border-radius:6px;font-size:13px}.pagination button:first-child,.pagination button:last-child{border:1px solid var(--line)}.pagination button.current{color:#fff;background:var(--wine)}.pagination button:disabled{color:#bfc2cb;cursor:default}.pagination button:hover:not(:disabled):not(.current){background:var(--pink)}.empty-state{text-align:center;padding:35px;background:#fcf7f9;border-radius:10px}.empty-state>i{font-size:28px;color:var(--wine)}.empty-state h3{margin-top:10px}.empty-state p{color:var(--muted);margin-bottom:18px}.course-grid.list-mode{grid-template-columns:1fr 1fr}.list-mode .course-open{flex-direction:row}.list-mode .course-image{width:36%;aspect-ratio:auto;min-height:155px}.site-footer{position:relative;background:linear-gradient(110deg,#fbf0f5,#fcf5f7);margin-top:0}.footer-grid{display:grid;grid-template-columns:1.65fr 1fr 1.15fr 1.65fr 1.05fr;gap:30px;padding-top:22px;padding-bottom:22px}.footer-grid h3{font-size:13px;font-weight:600;margin-bottom:5px}.footer-grid>div>a:not(.brand),.footer-grid>div>button,.footer-grid>div>p{display:block;font-size:11px;color:#737582;line-height:1.55}.footer-grid>div>button{padding:0;text-align:left}.footer-grid>div>p.brand-tagline{margin-top:6px;font-size:11px}.footer-grid>div>p i,.footer-grid>div>a i{color:#222632;margin-right:8px}.footer-grid>div>a:not(.brand){margin-bottom:2px}.footer-grid a:hover,.footer-grid button:hover{color:var(--wine)}.social-links{display:flex;gap:12px}.social-links button{padding:0;font-size:20px;color:#3678eb}.social-links button:nth-child(2){color:#b5289c}.social-links button:nth-child(3){color:#08b937}.social-links button:nth-child(4){color:#f1463c}.footer-bottom{border-top:1px solid #ead7e0;padding:10px 0;font-size:10px;color:#777b87}.footer-bottom .container{display:flex;justify-content:space-between;gap:15px}.footer-bottom button{font-size:10px;color:inherit}.back-to-top{position:absolute;right:3.5%;bottom:44px;display:grid;place-items:center;border-radius:100%;background:var(--wine);color:#fff;width:35px;height:35px;border:3px solid #f7dce7}.skip-link{position:fixed;top:-70px;left:15px;background:var(--wine);color:#fff;padding:12px;z-index:100}.skip-link:focus{top:10px}dialog{border:1px solid var(--line);border-radius:18px;padding:30px;max-width:520px;width:calc(100% - 32px);box-shadow:0 25px 80px #43132733;color:var(--ink)}dialog::backdrop{background:#20131b70;backdrop-filter:blur(4px)}.dialog-close{position:absolute;right:10px;top:10px}.dialog-image{border-radius:10px;overflow:hidden;margin:15px 0}.dialog-image .course-image{aspect-ratio:2.2}dialog h2{font-size:24px;line-height:1.4;margin:15px 15px 12px 0}dialog p{color:var(--muted);margin:9px 0}.demo-note{background:var(--pink);padding:13px;border-radius:8px;font-size:13px}.noscript{padding:20px;text-align:center;color:var(--wine)}[hidden]{display:none!important}@media(min-width:1400px){.course-section{margin-bottom:34px}.hero-search{margin-top:25px}.hero-copy{width:56%}.course-image{aspect-ratio:2.2}}@media(max-width:1100px){.header-inner{height:53px;gap:16px}.brand strong{font-size:24px}.brand small{font-size:10px}.crest{width:32px;height:42px}.main-nav{gap:26px}.main-nav a{font-size:12px}.header-actions{gap:16px}.outline-button{padding:7px 20px;font-size:12px}.hero{min-height:300px}.categories button{min-height:89px;height:89px}.categories span{font-size:12px}.categories i{font-size:27px}.section-heading h2{font-size:23px}.section-heading p{font-size:13px}.card-body{padding:10px 12px}.card-body h3{font-size:14px}.course-meta{font-size:11px}.compact .card-body{padding:9px 11px}.compact h3{font-size:12px;min-height:36px}.compact .course-meta{font-size:10px}.compact .badge{font-size:9px}.split-sections{gap:30px}.footer-grid{gap:22px}.hero-copy{width:55%}.hero-search{margin-top:18px}.popular-tags{gap:7px;font-size:11px}.popular-tags button{padding:4px 10px}}@media(max-width:850px){.main-nav{gap:17px}.header-actions{gap:7px}.language{display:none}.brand strong{font-size:22px}.brand small{font-size:9px}.hero h1{font-size:27px}.hero-copy{width:65%}.hero-art{opacity:.65}.hero-description{font-size:13px}.categories{gap:7px}.categories span{font-size:10px}.section-heading{gap:11px}.section-heading h2{font-size:21px}.split-sections{grid-template-columns:1fr}.split-sections:before{display:none}.compact .course-image{aspect-ratio:2.2}.compact h3{font-size:14px;min-height:21px}.compact .course-meta,.compact .badge{font-size:11px}.filters{grid-template-columns:repeat(3,1fr)}.filter-search{grid-column:span 2}.course-grid:not(.compact){grid-template-columns:repeat(2,minmax(0,1fr))}.footer-grid{grid-template-columns:repeat(4,1fr)}.footer-grid>div:first-child{grid-column:1/-1;display:flex;gap:20px;align-items:center}.course-image{aspect-ratio:2.5}.course-meta{font-size:12px}}@media(max-width:600px){.container{width:91%}.header-inner{height:65px;gap:8px}.header-actions{gap:3px}.header-actions>.icon-button:not(.menu-toggle){display:none}.outline-button{padding:6px 13px;border-radius:8px;font-size:11px}.menu-toggle{display:inline-grid}.main-nav{display:none;position:absolute;top:65px;left:0;right:0;background:#fff;z-index:10;padding:15px 5%;box-shadow:0 8px 12px #60244012;flex-direction:column;gap:0}.main-nav.open{display:flex}.main-nav a{padding:12px;font-size:14px}.main-nav a.active:before{display:none}.hero{height:auto;min-height:360px}.hero-art{width:100%;opacity:.18;mask-image:linear-gradient(to right,transparent,#000)}.hero-copy{width:100%;padding:28px 0}.hero h1{font-size:clamp(24px,6.4vw,35px);letter-spacing:-.8px}.hero-description{font-size:12px;margin-top:13px}.eyebrow{font-size:10px;margin-bottom:14px}.hero-search{margin-top:22px;padding-left:13px;gap:8px}.hero-search input{font-size:12px}.hero-search button{padding:10px 22px;font-size:12px}.popular-tags{font-size:10px;gap:6px}.popular-tags button{padding:4px 9px}.main-content{padding-top:17px}.categories{grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:25px}.categories button{min-height:89px;border-radius:10px}.categories span{font-size:11px}.categories i{font-size:26px}.section-heading{gap:10px;margin-bottom:13px}.section-heading h2{font-size:21px}.section-heading p{font-size:11px}.section-icon{font-size:27px}.view-all{font-size:11px;gap:8px}.course-grid:not(.compact),.course-grid.compact{grid-template-columns:minmax(0,1fr);gap:16px}.card-body,.compact .card-body{padding:10px}.card-body h3,.compact h3{font-size:15px;min-height:0}.course-meta,.compact .course-meta{font-size:12px}.badges{gap:4px;padding-top:8px}.badge,.compact .badge{font-size:9px;padding:3px 5px}.course-image,.catalogue .course-image{aspect-ratio:1.85}.compact .course-image{aspect-ratio:1.85}.recommend-badge{font-size:10px;padding:2px 8px;top:7px;left:7px}.course-section{margin-bottom:25px}.split-sections{gap:0}.filters{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.filters select{height:39px}.filter-search{grid-column:1/-1}.filters select:last-child{grid-column:1/-1}.course-grid.list-mode{grid-template-columns:1fr}.list-mode .course-image{min-height:125px}.footer-grid{grid-template-columns:1fr 1fr;gap:22px;padding:25px 0}.footer-grid>div:first-child{display:block}.footer-grid>div:first-child .brand-tagline{margin-top:9px}.footer-bottom .container{flex-direction:column;gap:4px}.footer-bottom button:first-child{padding-left:0}.back-to-top{bottom:74px}.footer-grid>div>a:not(.brand),.footer-grid>div>button,.footer-grid>div>p{font-size:12px;line-height:1.8}dialog{padding:23px}.pagination{gap:5px}.hero h1 span{white-space:normal}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}


@media(min-width:851px) and (max-width:1100px){.badge{font-size:10px;padding:4px 5px}.badges{gap:5px}.hero-search input{height:32px}.hero-search button{padding:8px 27px}.hero-description{margin-top:9px}.hero-search{margin-top:16px}.hero-copy{padding:18px 0}.categories span{font-size:11px}.categories{margin-bottom:21px}.card-body h3{font-size:13px}.course-meta{font-size:10px}.compact .course-meta{white-space:nowrap;overflow:hidden;display:block;text-overflow:ellipsis}.compact .course-meta i{margin-right:4px}.compact h3{font-size:12px}.footer-grid{padding-top:19px;padding-bottom:19px}}
@media(min-width:851px) and (max-width:1100px){.course-section{margin-bottom:22px}.section-heading{margin-bottom:12px}.categories{margin-bottom:17px}.footer-grid{padding-top:16px;padding-bottom:16px}.footer-grid>div>a:not(.brand),.footer-grid>div>button,.footer-grid>div>p{font-size:10px;line-height:1.3}.footer-grid h3{font-size:12px}.footer-bottom{padding:8px 0}}
.course-comments{border-top:1px solid var(--line);padding-top:20px;margin-top:22px}.course-comments h3{font-size:18px}.comment-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:15px}.comment-actions .primary-button{border-radius:11px;padding:9px 22px}

/* Catalogue cards occupy 2 of 12 columns on desktop. */
@media(min-width:851px){.catalogue .course-grid:not(.list-mode){grid-template-columns:repeat(6,minmax(0,1fr))}.catalogue .course-grid:not(.list-mode) .card-body{padding:10px}.catalogue .course-grid:not(.list-mode) .badges{flex-wrap:wrap}}
@media(min-width:851px){body[data-page="category"] .catalogue .course-grid:not(.list-mode){grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(min-width:851px){#popular-courses{grid-template-columns:repeat(6,minmax(0,1fr))}#popular-courses .badges{flex-wrap:wrap}}
.course-card .card-body h3{font-size:17px;line-height:1.5;overflow-wrap:anywhere}

/* Readable footer text across all screen sizes. */
.site-footer .footer-grid h3{font-size:16px}
.site-footer .footer-grid>div>a:not(.brand),.site-footer .footer-grid>div>button,.site-footer .footer-grid>div>p{font-size:14px;line-height:1.8;overflow-wrap:anywhere}
.site-footer .footer-bottom,.site-footer .footer-bottom button,.site-footer .footer-bottom a{font-size:14px;line-height:1.7}