/* ============================================================
   IWA RICH YOU D — Catalog & Product Pages
   Single, consolidated source of truth for every products/*.html
   page plus the homepage product-directory preview.
   Palette matches assets/css/style.css (warm brown / gold).
   ============================================================ */

:root{
  --c-navy-deep:#3a3126;
  --c-navy:#4a3f31;
  --c-ink:#2b2620;
  --c-muted:#8f8573;
  --c-muted-2:#a3937f;
  --c-line:rgba(43,38,32,.10);
  --c-line-soft:#eee5dd;
  --c-paper:#faf6f0;
  --c-paper-alt:#f1e9dd;
  --c-white:#fff;
  --c-gold:#b9814a;
  --c-gold-light:#d6a876;
  --c-gold-pale:#f4d77c;

  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:20px;
  --r-pill:999px;

  --shadow-sm:0 4px 16px rgba(43,38,32,.06);
  --shadow-md:0 10px 30px rgba(43,38,32,.09);
  --shadow-lg:0 20px 48px rgba(43,38,32,.14);

  --ease:cubic-bezier(.16,1,.3,1);
}

/* ============ RESET (scoped to catalog pages) ============ */
html,body{margin:0;padding:0}
.catalog-page{min-height:100vh;background:var(--c-paper-alt);color:var(--c-ink);font-family:Sarabun,Arial,sans-serif;-webkit-font-smoothing:antialiased}
.catalog-page *{box-sizing:border-box}
:where(.catalog-page) a{text-decoration:none;color:inherit}
.catalog-page img{max-width:100%;display:block}
.catalog-page button{font:inherit;cursor:pointer;background:none;border:none}
.catalog-page :focus-visible{outline:3px solid var(--c-gold);outline-offset:2px;border-radius:4px}

/* ============ SCROLL REVEAL (used by app.js IntersectionObserver) ============ */
.iwa-reveal{opacity:0;transform:translateY(18px);transition:opacity .6s var(--ease),transform .6s var(--ease);transition-delay:var(--iwa-delay,0ms)}
.iwa-reveal.iwa-visible{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.iwa-reveal{opacity:1;transform:none;transition:none}}

/* ============ HEADER / HERO / FOOTER SHELL ============ */
.catalog-page__header{position:sticky;z-index:10;top:0;background:rgba(58,49,38,.97);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.08)}
.catalog-page__bar{display:flex;align-items:center;justify-content:space-between;gap:16px;max-width:1180px;margin:0 auto;padding:14px 24px}
.catalog-page__header .catalog-page__brand{display:flex;align-items:center;gap:12px;color:#fff;font:600 15px/1.25 Kanit,sans-serif}
.catalog-page__brand img{width:38px;height:38px;object-fit:contain;border-radius:10px;background:#fff;transition:transform .3s var(--ease)}
.catalog-page__brand:hover img{transform:rotate(-6deg) scale(1.06)}
.catalog-page__brand small{display:block;margin-top:2px;color:#d9c5b1;font:10px/1.35 'IBM Plex Mono',monospace;letter-spacing:.6px}
.catalog-page__header .catalog-page__back{display:inline-flex;align-items:center;gap:8px;flex:none;color:var(--c-gold-pale);font:500 13px Kanit,sans-serif;transition:color .18s ease,transform .18s ease}
.catalog-page__header .catalog-page__back:hover{color:#fff;transform:translateX(-2px)}

.catalog-page__hero{position:relative;overflow:hidden;padding:72px 24px 64px;background:var(--c-navy)}
.catalog-page__hero:before{content:"";position:absolute;inset:0;pointer-events:none;background:
  radial-gradient(circle at 88% -12%,rgba(214,168,118,.22),transparent 42%),
  radial-gradient(circle at 4% 122%,rgba(185,129,74,.18),transparent 42%),
  radial-gradient(rgba(255,255,255,.05) 1.4px,transparent 1.4px) 0 0/28px 28px}
.catalog-page__hero:after{content:"";position:absolute;top:26px;right:26px;width:22px;height:22px;border-top:1px solid rgba(255,255,255,.22);border-right:1px solid rgba(255,255,255,.22);pointer-events:none}
.catalog-page__hero-inner{position:relative;z-index:1;max-width:1180px;margin:0 auto}
.catalog-page__crumb{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px;color:#cbb9a5;font:12px 'IBM Plex Mono',monospace}
.catalog-page__crumb a{color:var(--c-gold-pale);transition:color .15s ease}
.catalog-page__crumb a:hover{color:#fff}
.catalog-page__eyebrow{display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;color:var(--c-gold-pale);font:700 11px 'IBM Plex Mono',monospace;letter-spacing:1.8px}
.catalog-page__eyebrow:before{content:"";width:22px;height:2px;background:var(--c-gold-pale);display:inline-block}
.catalog-page h1{max-width:800px;margin:0;color:#fff;font:700 clamp(32px,4.6vw,52px)/1.16 Kanit,sans-serif;letter-spacing:-.4px}
.catalog-page__hero p{max-width:640px;margin:16px 0 0;color:#e4d6c6;font-size:16px;line-height:1.8}

.catalog-page__content{max-width:1180px;margin:0 auto;padding:52px 24px 90px}
.catalog-page__heading{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:26px}
.catalog-page__heading h2{margin:0;color:var(--c-ink);font:600 28px Kanit,sans-serif}
.catalog-page__heading p{margin:7px 0 0;color:var(--c-muted);font-size:14px}
.catalog-page__count{flex:none;padding:8px 14px;border:1px solid var(--c-line);border-radius:var(--r-pill);background:#fff;color:#84715e;font:600 12px Kanit,sans-serif}

.catalog-page__footer{padding:26px 24px;background:var(--c-navy-deep);color:#c9bfae;text-align:center;font-size:13px}
.catalog-page__footer a{color:var(--c-gold-light);font-weight:600}
.catalog-page__footer a:hover{text-decoration:underline}
.footer{padding:26px 24px;background:var(--c-navy-deep);color:#c9bfae;text-align:center;font-size:13px}
.footer a{color:var(--c-gold-light);font-weight:600}

@media(max-width:700px){
  .catalog-page__bar{padding:12px 18px}
  .catalog-page__brand>span{display:none}
  .catalog-page__hero{padding:56px 20px 48px}
  .catalog-page h1{font-size:34px}
  .catalog-page__content{padding:38px 18px 64px}
  .catalog-page__heading{display:block}
  .catalog-page__count{display:inline-flex;margin-top:14px}
}

/* ============ EMPTY STATE ============ */
.empty-product-state{position:relative;display:grid;min-height:260px;place-items:center;padding:42px;border:1px solid var(--c-line);border-radius:var(--r-lg);background:#fff;box-shadow:var(--shadow-sm);text-align:center}
.empty-product-state:before{content:"";position:absolute;inset:14px;border:1px dashed var(--c-line);border-radius:10px;pointer-events:none}
.empty-product-state__icon{display:grid;width:52px;height:52px;margin:0 auto 18px;place-items:center;border-radius:50%;background:var(--c-paper);color:var(--c-navy);font:700 13px 'IBM Plex Mono',monospace}
.empty-product-state h3{margin:0 0 8px;color:var(--c-ink);font:600 22px Kanit,sans-serif}
.empty-product-state p{max-width:440px;margin:0;color:var(--c-muted);font-size:15px;line-height:1.75}
.catalog-page__contact{display:inline-flex;align-items:center;gap:8px;margin-top:22px;padding:12px 18px;border-radius:var(--r-sm);background:var(--c-ink);color:#fff;font:500 14px Kanit,sans-serif;transition:background .2s ease,transform .2s ease}
.catalog-page__contact:hover{background:var(--c-gold);color:var(--c-ink)}

/* ============================================================
   CATEGORY DIRECTORY  — used both by the homepage preview
   (#products.catalog-home) and products/index.html (.catalog-directory)
   ============================================================ */
.catalog-intro{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:30px}
.catalog-intro h2{margin:8px 0 8px;color:var(--c-ink);font:700 clamp(28px,3.6vw,40px)/1.18 Kanit,sans-serif}
.catalog-intro p{max-width:620px;margin:0;color:var(--c-muted);font-size:15px;line-height:1.75}
.catalog-all-link{display:inline-flex;align-items:center;gap:10px;flex:none;padding:12px 18px;border:1px solid var(--c-line);border-radius:var(--r-pill);background:#fff;color:var(--c-navy);font:600 14px Kanit,sans-serif;box-shadow:var(--shadow-sm);transition:.2s ease}
.catalog-all-link:hover{border-color:var(--c-gold);color:var(--c-ink)}
.catalog-note{margin:26px 0 0;color:var(--c-muted);font-size:13.5px;text-align:center}

.catalog-category-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.catalog-category-card{
  position:relative;display:flex;flex-direction:column;overflow:hidden;
  min-height:260px;border:1px solid var(--c-line);border-radius:var(--r-lg);
  background:#fff;box-shadow:var(--shadow-sm);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s ease;
}
.catalog-category-card:hover{border-color:rgba(185,129,74,.4);box-shadow:var(--shadow-md)}
.catalog-card-photo{display:block;flex:none;width:100%;height:150px;background-repeat:no-repeat;background-position:center;background-size:cover;background-color:var(--c-paper-alt)}
.catalog-category-grid a:nth-child(1) .catalog-card-photo{background-image:url('../img/categories/kids-english.png')}
.catalog-category-grid a:nth-child(2) .catalog-card-photo{background-image:url('../img/categories/communicative-english.png')}
.catalog-category-grid a:nth-child(3) .catalog-card-photo{background-image:url('../img/categories/preschool-multimedia.png')}
.catalog-category-grid a:nth-child(4) .catalog-card-photo{background-image:url('../img/categories/primary-multimedia.png')}
.catalog-category-grid a:nth-child(5) .catalog-card-photo{background-image:url('../img/categories/iwa-ai-board.png')}
.catalog-category-card__label{display:block;margin:20px 20px 0;color:var(--c-gold);font:700 10px 'IBM Plex Mono',monospace;letter-spacing:1.4px}
.catalog-category-card strong{display:block;margin:8px 20px 8px;color:var(--c-ink);font:600 21px/1.32 Kanit,sans-serif}
.catalog-category-card>span:not(.catalog-icon):not(.catalog-category-card__label):not(.catalog-card-photo){display:block;margin:0 20px;color:var(--c-muted);font-size:13.5px;line-height:1.65}
.catalog-category-card small{display:inline-flex;align-items:center;gap:7px;align-self:flex-start;margin:16px 20px 20px;padding:5px 10px;border-radius:var(--r-pill);background:var(--c-paper);color:#87725d;font:600 11px Kanit,sans-serif}
.catalog-category-card small:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-gold)}
.catalog-icon{display:none} /* numeric icon retired in favour of the eyebrow label */

@media(max-width:980px){.catalog-category-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:700px){
  .catalog-intro{display:block}
  .catalog-all-link{margin-top:18px}
  .catalog-category-grid{grid-template-columns:1fr}
}

/* Homepage variant: framed in a dark intro band */
.catalog-home{padding-top:84px!important;padding-bottom:96px!important;background:var(--c-paper)!important}
.catalog-home .catalog-intro{position:relative;overflow:hidden;align-items:center;margin-bottom:26px;padding:36px 40px;border-radius:var(--r-lg);background:var(--c-navy-deep);box-shadow:var(--shadow-lg)}
.catalog-home .catalog-intro:before{content:"";position:absolute;right:-90px;bottom:-120px;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(214,168,118,.12),transparent 70%);pointer-events:none}
.catalog-home .catalog-intro>*{position:relative;z-index:1}
.catalog-home .catalog-intro .eyebrow{color:var(--c-gold-pale)}
.catalog-home .catalog-intro h2{color:#fff}
.catalog-home .catalog-intro p{color:#f0e3d7}
.catalog-home .catalog-all-link{border-color:rgba(255,255,255,.28)}

/* Directory page (products/index.html) variant */
.catalog-directory{background:#f7f5f1}
.catalog-directory .catalog-page__hero{padding:68px 24px 60px;background:var(--c-navy)}
.catalog-directory .catalog-page__hero h1{max-width:660px}
.catalog-directory .catalog-page__hero h1 em{color:var(--c-gold-pale);font-style:normal}
.catalog-directory__hero-meta{display:flex;gap:26px;margin-top:22px;color:#e4d6c8;font:500 12px Kanit,sans-serif}
.catalog-directory__hero-meta span{display:flex;align-items:center;gap:8px}
.catalog-directory__hero-meta b{color:var(--c-gold-pale);font:700 17px 'IBM Plex Mono',monospace}
.catalog-directory__intro{margin:0 0 26px;padding:0 0 20px;border-bottom:1px solid var(--c-line-soft)}
.catalog-directory__intro>div>span{color:var(--c-gold);font:700 10px 'IBM Plex Mono',monospace;letter-spacing:1.6px}
.catalog-directory__intro h2{margin:7px 0 6px;color:var(--c-ink);font:600 26px/1.2 Kanit,sans-serif}
.catalog-directory__intro p{max-width:640px;margin:0;color:var(--c-muted);font-size:14px;line-height:1.7}

/* ============================================================
   DEMO PRODUCT GRID (children's English, vantage, aiboard sizes)
   ============================================================ */
.demo-product-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.demo-product-grid--two{grid-template-columns:repeat(2,minmax(0,1fr));max-width:860px;margin:0 auto}
.demo-product-grid--single{grid-template-columns:minmax(0,520px);justify-content:center}

.demo-product-card{
  display:flex;flex-direction:column;overflow:hidden;
  border:1px solid var(--c-line);border-radius:var(--r-lg);background:#fff;
  box-shadow:var(--shadow-sm);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.demo-product-card:hover{box-shadow:var(--shadow-md)}

.demo-product-art{position:relative;height:210px;overflow:hidden;background:var(--c-paper-alt)}
.demo-product-art--image>img,.demo-product-art>img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.demo-product-card:hover .demo-product-art img{transform:scale(1.04)}
.demo-product-grid--two .demo-product-art{height:250px}

.demo-product-card__body{display:flex;flex:1;flex-direction:column;padding:22px}
.demo-product-label{align-self:flex-start;padding:5px 10px;border-radius:var(--r-pill);background:var(--c-paper);color:#7f5831;font:700 10px Kanit,sans-serif;letter-spacing:.2px}
.demo-product-card h3{margin:14px 0 7px;color:var(--c-ink);font:600 20px/1.35 Kanit,sans-serif}
.demo-product-grid--two .demo-product-card h3{font-size:22px}
.demo-product-card p{margin:0;color:var(--c-muted);font-size:14px;line-height:1.72}
.demo-product-meta{display:flex;gap:8px;flex-wrap:wrap;margin:16px 0}
.demo-product-meta span{padding:5px 9px;border:1px solid var(--c-line-soft);border-radius:7px;color:#8b7661;font-size:11px}
.demo-product-card__link{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:14px;border-top:1px solid var(--c-line-soft);color:var(--c-navy);font:600 13px Kanit,sans-serif;transition:color .18s ease}
.demo-product-card__link b{font-size:18px;font-weight:400;transition:transform .2s ease}
.demo-product-card:hover .demo-product-card__link{color:var(--c-gold)}
.demo-product-card:hover .demo-product-card__link b{transform:translateX(4px)}

.demo-disclaimer{margin:22px 0 0;padding:13px 15px;border-left:3px solid var(--c-gold);border-radius:0 10px 10px 0;background:#fffbef;color:#6c5b2b;font-size:13px;line-height:1.65}

@media(max-width:850px){.demo-product-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:560px){
  .demo-product-grid,.demo-product-grid--two{grid-template-columns:1fr}
  .demo-product-art{height:195px}
}

/* ============================================================
   PRODUCT-DETAIL "SIMPLE" LAYOUT (single product hero + copy)
   ============================================================ */
.product-detail-simple{display:grid;grid-template-columns:minmax(0,1fr) minmax(330px,.92fr);gap:46px;align-items:center;max-width:1040px;margin:0 auto}
.product-detail-simple__cover{position:relative;min-height:360px;overflow:hidden;border-radius:var(--r-lg);background:var(--c-paper-alt)}
.product-detail-simple__cover img{position:absolute;inset:16px;width:calc(100% - 32px);height:calc(100% - 32px);object-fit:contain}
.product-detail-simple__copy h2{margin:14px 0 10px;color:var(--c-ink);font:600 clamp(28px,3.6vw,38px)/1.22 Kanit,sans-serif}
.product-detail-simple__copy>p{margin:0;color:var(--c-muted);font-size:15.5px;line-height:1.8}
.product-detail-simple__pending{display:grid;gap:5px;margin-top:22px;padding:16px 18px;border-left:3px solid var(--c-gold);border-radius:0 var(--r-md) var(--r-md) 0;background:#fffaf0;color:#68582d;font-size:13px;line-height:1.6}
.product-detail-simple__pending b{color:#735a17;font:600 14px Kanit,sans-serif}
.product-detail-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:22px}
.demo-detail-action{display:inline-flex;padding:12px 18px;border-radius:var(--r-sm);background:var(--c-ink);color:#fff;font:500 14px Kanit,sans-serif;transition:background .2s ease,transform .2s ease}
.demo-detail-action:hover{background:var(--c-gold);color:var(--c-ink)}
.product-more-link{display:inline-flex;align-items:center;gap:8px;color:var(--c-navy);font:600 14px Kanit,sans-serif}
.product-more-link b{display:grid;width:24px;height:24px;place-items:center;border:1px solid var(--c-line-soft);border-radius:50%;font-size:15px;font-weight:400;transition:transform .2s ease}
.product-more-link:hover{color:var(--c-gold)}
.product-more-link:hover b{}

/* cover colour cues per product line, still on-brand */
.product-detail-simple__cover--phonics,.demo-product-art--phonics{background:#6a441f}
.product-detail-simple__cover--picaro,.demo-product-art--picaro{background:#7b5b3b}
.product-detail-simple__cover--vantage,.demo-product-art--vantage{background:var(--c-paper-alt)}
.demo-product-art--vantage.demo-product-art--image>img{object-position:center 60%}
.product-detail-simple__cover--vantage>img{object-fit:contain}

@media(max-width:700px){.product-detail-simple{grid-template-columns:1fr;gap:26px}.product-detail-simple__cover{min-height:280px}}

/* ============================================================
   PRODUCT "LONG-FORM" DETAIL PAGE (…-details.html)
   ============================================================ */
.product-long-page{background:#f6f2ec}
.product-long-hero{position:relative;display:grid;grid-template-columns:minmax(0,1fr) minmax(360px,.82fr);min-height:420px;overflow:hidden;padding:64px max(24px,calc((100% - 1080px)/2));background:var(--c-navy-deep);color:#fff}
.product-long-hero>div{position:relative;z-index:1;align-self:center}
.product-long-hero>div>span{display:block;color:var(--c-gold-pale);font:700 10px 'IBM Plex Mono',monospace;letter-spacing:1.5px}
.product-long-hero h1{margin:12px 0;color:#fff;font:600 clamp(34px,4.6vw,54px)/1.16 Kanit,sans-serif}
.product-long-hero h1 em{color:var(--c-gold-pale);font-style:normal}
.product-long-hero p{max-width:540px;margin:0;color:#f0e3d7;font-size:15.5px;line-height:1.75}
.product-long-hero>div>a{display:inline-flex;gap:10px;margin-top:22px;padding:11px 16px;border:1px solid rgba(255,255,255,.28);border-radius:var(--r-sm);color:#fff;font:500 13px Kanit,sans-serif;transition:background .2s ease}
.product-long-hero>div>a:hover{background:rgba(255,255,255,.1)}
.product-long-hero>div>a b{color:var(--c-gold-pale);font-size:17px}
.product-long-hero>img{position:relative;z-index:1;width:100%;height:100%;align-self:end;justify-self:end;object-fit:contain}

.product-long-content{max-width:1080px;margin:0 auto;padding:64px 24px 88px}
.product-long-title{max-width:680px}
.product-long-title>span,.product-long-data>div>span,.product-long-contact span{color:var(--c-gold);font:700 10px 'IBM Plex Mono',monospace;letter-spacing:1.5px}
.product-long-title h2,.product-long-data h2{margin:8px 0;color:var(--c-ink);font:600 30px/1.28 Kanit,sans-serif}
.product-long-title p,.product-long-data p{margin:0;color:var(--c-muted);font-size:15px;line-height:1.8}

.skill-list{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:26px}
.skill-list article{padding:22px 19px;border:1px solid var(--c-line-soft);border-radius:var(--r-md);background:#fff;box-shadow:var(--shadow-sm);transition:transform .25s var(--ease),box-shadow .25s ease}
.skill-list article:hover{box-shadow:var(--shadow-md)}
.skill-list b{color:var(--c-gold);font:600 12px 'IBM Plex Mono',monospace}
.skill-list h3{margin:20px 0 6px;color:#5b3b1b;font:600 17px/1.35 Kanit,sans-serif}
.skill-list p{margin:0;color:#927b65;font-size:13px;line-height:1.65}

.product-long-data{display:grid;grid-template-columns:minmax(0,1fr) minmax(380px,.95fr);gap:44px;align-items:center;margin-top:64px;padding:34px 36px;border-radius:var(--r-lg);background:#f9f2eb}
.product-long-data__numbers{display:grid;grid-template-columns:repeat(3,1fr);gap:11px}
.product-long-data__numbers p{padding:14px;border-radius:var(--r-md);background:#fff}
.product-long-data__numbers b{display:block;color:var(--c-navy);font:700 18px 'IBM Plex Mono',monospace;letter-spacing:-1px}
.product-long-data__numbers span{display:block;margin-top:7px;color:#8f775f;font-size:11px;line-height:1.5}

.product-long-gallery{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:64px}
.product-long-gallery .product-long-title{grid-column:1/-1}
.product-long-gallery figure{overflow:hidden;margin:0;border-radius:var(--r-md);background:#fff;box-shadow:var(--shadow-sm)}
.product-long-gallery img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .45s var(--ease)}
.product-long-gallery figure:hover img{transform:scale(1.04)}
.product-long-gallery figcaption{padding:12px 15px;color:#8e765e;font-size:13px}

.product-long-contact{display:flex;align-items:center;justify-content:space-between;gap:28px;margin-top:64px;padding:32px 36px;border-radius:var(--r-lg);background:var(--c-ink);color:#fff}
.product-long-contact span{color:var(--c-gold-pale)}
.product-long-contact h2{margin:7px 0;color:#fff;font:600 26px Kanit,sans-serif}
.product-long-contact p{margin:0;color:#e6dcd1;font-size:14px}
.product-long-contact>a{display:inline-flex;align-items:center;gap:10px;flex:none;padding:12px 18px;border-radius:var(--r-sm);background:#fff;color:var(--c-navy);font:600 14px Kanit,sans-serif;transition:transform .2s ease}
.product-long-contact>a:hover{}

@media(max-width:760px){
  .product-long-hero{grid-template-columns:1fr;padding:52px 20px 0}
  .product-long-hero>img{max-height:280px;margin:18px auto 0}
  .product-long-content{padding:48px 17px 64px}
  .skill-list{grid-template-columns:repeat(2,1fr)}
  .product-long-data{grid-template-columns:1fr;gap:24px;margin-top:44px;padding:26px 22px}
  .product-long-gallery{grid-template-columns:1fr;margin-top:44px}
  .product-long-contact{align-items:flex-start;flex-direction:column;margin-top:44px;padding:26px 22px}
}
@media(max-width:470px){.skill-list{grid-template-columns:1fr}.product-long-data__numbers{grid-template-columns:1fr}}

/* ============================================================
   PRODUCT INSIGHT band (stats strip beneath a detail hero)
   — one shared dark treatment, kept on-brand across every variant
   ============================================================ */
.product-insight{display:grid;grid-template-columns:minmax(0,1fr) minmax(360px,.9fr);gap:34px;align-items:end;margin:64px 0 0;padding:36px 40px;border-radius:var(--r-lg);background:var(--c-navy);color:#fff;box-shadow:var(--shadow-lg)}
.product-insight__heading>span,.product-media__intro>span{color:var(--c-gold-pale);font:700 10px 'IBM Plex Mono',monospace;letter-spacing:1.5px}
.product-insight__heading h2{margin:8px 0 9px;font:600 28px/1.32 Kanit,sans-serif}
.product-insight__heading p{max-width:560px;margin:0;color:#f0e3d7;font-size:14px;line-height:1.75}
.product-insight__stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.product-insight__stats div{min-height:108px;padding:16px;border:1px solid rgba(255,255,255,.16);border-radius:var(--r-md);background:rgba(255,255,255,.08);transition:transform .25s var(--ease),background .25s ease}
.product-insight__stats div:hover{background:rgba(255,255,255,.13)}
.product-insight__stats b{display:block;color:var(--c-gold-pale);font:700 22px 'IBM Plex Mono',monospace;letter-spacing:-1px}
.product-insight__stats span{display:block;margin-top:8px;color:#f6ece2;font:400 12px/1.5 Sarabun,sans-serif}

/* variants keep the same dark family, differentiated only by a small accent shift */
.product-insight--phonics{background:#583a1c}
.product-insight--picaro{background:#5c4029}
.product-insight--vantage{background:#4a3f31}

.product-media{margin:60px 0 8px}
.product-media__intro{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:18px}
.product-media__intro h2{margin:6px 0 0;color:var(--c-ink);font:600 27px Kanit,sans-serif}
.product-media__grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.product-media figure{overflow:hidden;margin:0;border:1px solid var(--c-line-soft);border-radius:var(--r-md);background:#fff;box-shadow:var(--shadow-sm)}
.product-media img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s var(--ease)}
.product-media figure:hover img{transform:scale(1.035)}
.product-media figcaption{padding:12px 15px;color:#846b52;font-size:13px}

@media(max-width:760px){
  .product-insight{grid-template-columns:1fr;gap:22px;margin-top:44px;padding:26px 24px}
  .product-insight__heading h2{font-size:24px}
  .product-media{margin-top:44px}
  .product-media__grid{grid-template-columns:1fr}
}

/* ============================================================
   VANTAGE (communicative English) product-specific blocks
   ============================================================ */
.vantage-summary{display:grid;grid-template-columns:minmax(0,1fr) minmax(400px,1.1fr);gap:32px;align-items:start;margin-top:60px;padding:32px 36px;border:1px solid var(--c-line-soft);border-radius:var(--r-lg);background:#fcf8f5}
.vantage-summary__heading>span{color:var(--c-gold);font:700 10px 'IBM Plex Mono',monospace;letter-spacing:1.5px}
.vantage-summary__heading h2{margin:8px 0;color:#5b3a1a;font:600 28px Kanit,sans-serif}
.vantage-summary__heading p{margin:0;color:#8e7760;font-size:14px;line-height:1.75}
.vantage-summary__items{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.vantage-summary__items article{padding:16px;border:1px solid var(--c-line-soft);border-radius:var(--r-md);background:#fff;transition:transform .2s ease}
.vantage-summary__items article:hover{}
.vantage-summary__items b{color:#845526;font:700 10px 'IBM Plex Mono',monospace}
.vantage-summary__items h3{margin:14px 0 4px;color:#5d3c1b;font:600 15px/1.35 Kanit,sans-serif}
.vantage-summary__items p{margin:0;color:#947f6a;font-size:12px;line-height:1.55}

.vantage-detail-image{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(320px,.88fr);align-items:center;overflow:hidden;margin-top:60px;border-radius:var(--r-lg);background:#5c3b1b;color:#fff}
.vantage-detail-image img{width:100%;height:100%;min-height:290px;object-fit:cover}
.vantage-detail-image div{padding:30px}
.vantage-detail-image span{color:#e1bc97;font:700 10px 'IBM Plex Mono',monospace;letter-spacing:1.4px}
.vantage-detail-image h2{margin:9px 0;color:#fff;font:600 26px/1.3 Kanit,sans-serif}
.vantage-detail-image p{margin:0;color:#f2e5d9;font-size:14px;line-height:1.75}

@media(max-width:760px){
  .vantage-summary{grid-template-columns:1fr;margin-top:44px;padding:24px 20px}
  .vantage-summary__items{grid-template-columns:1fr}
  .vantage-detail-image{grid-template-columns:1fr;margin-top:44px}
  .vantage-detail-image img{min-height:auto}
}

/* ============================================================
   PRESCHOOL / PRIMARY grids + summary/detail templates
   ============================================================ */
.preschool-page .catalog-page__hero,.primary-page .catalog-page__hero{background:var(--c-navy-deep)}
.preschool-product-grid,.primary-page .preschool-product-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.preschool-product-card{overflow:hidden;border:1px solid var(--c-line-soft);border-radius:var(--r-lg);background:#fff;box-shadow:var(--shadow-sm);transition:transform .3s var(--ease),box-shadow .3s var(--ease)}
.preschool-product-card:hover{box-shadow:var(--shadow-md)}
.preschool-product-art{display:grid;place-items:center;aspect-ratio:3/2;padding:9px;background:var(--c-paper)}
.preschool-product-art img{width:100%;height:100%;border-radius:10px;object-fit:contain;background:#fff}
.preschool-product-card .demo-product-card__body{padding:19px 20px 20px}
.preschool-product-card .demo-product-card__body h3{margin-top:9px;font-size:20px;line-height:1.3}

.primary-product-card .primary-product-art{aspect-ratio:3/2;padding:9px;background:linear-gradient(145deg,#f8fafc,#e9f0f7)}
.primary-product-card .primary-product-art>img{width:100%;height:100%;border-radius:10px;object-fit:contain;background:#fff}

@media(max-width:900px){.preschool-product-grid,.primary-page .preschool-product-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:600px){.preschool-product-grid,.primary-page .preschool-product-grid{grid-template-columns:1fr;gap:16px}}

/* Preschool / primary "summary" one-product page (uses product-detail-simple + product-insight) */
.preschool-summary-page .catalog-page__hero,.primary-summary-page .catalog-page__hero{background:var(--c-navy-deep)}
.preschool-summary-cover,.primary-summary-cover{background:var(--c-paper)!important}
.preschool-summary-cover img,.primary-summary-cover img{position:relative;width:100%;height:100%;object-fit:contain;padding:13px;background:#fff}
.preschool-summary-cover:has(img[src$="digital-library-school.png"]),.primary-summary-cover:has(img[src$="digital-library-school.png"]){min-height:0;aspect-ratio:16/9}
.preschool-summary-cover img[src$="digital-library-school.png"],.primary-summary-cover img[src$="digital-library-school.png"]{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;padding:0}
.preschool-summary-insight{background:var(--c-navy)}
.preschool-summary-insight{align-items:stretch!important;padding:34px 36px!important}
.preschool-summary-insight .product-insight__heading{display:flex;flex:0 0 32%;flex-direction:column;justify-content:center}
.preschool-summary-insight__stats{display:grid;flex:1;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.preschool-summary-insight__stats article{min-height:150px;padding:18px;border:1px solid rgba(255,255,255,.16);border-radius:var(--r-md);background:rgba(255,255,255,.08);transition:transform .25s var(--ease),background .25s ease}
.preschool-summary-insight__stats article:hover{background:rgba(255,255,255,.14)}
.preschool-summary-insight__stats span{display:block;color:var(--c-gold-pale);font:700 16px 'IBM Plex Mono',monospace}
.preschool-summary-insight__stats h3{margin:14px 0 6px;color:#fff;font:600 15px/1.35 Kanit,sans-serif}
.preschool-summary-insight__stats p{margin:0;color:#efe3d8;font:13px/1.6 Sarabun,sans-serif}

@media(max-width:820px){
  .preschool-summary-insight{display:block!important}
  .preschool-summary-insight .product-insight__heading{margin-bottom:22px}
}
@media(max-width:620px){
  .preschool-summary-insight{padding:24px 20px!important}
  .preschool-summary-insight__stats{grid-template-columns:1fr}
}

/* Preschool long detail page extras: steps, teaching note, lesson gallery, system requirements */
.preschool-detail-explainer{margin-top:64px}
.preschool-detail-explainer>.product-long-title{max-width:740px}
.preschool-detail-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:26px}
.preschool-detail-steps article{padding:22px 20px;border:1px solid var(--c-line-soft);border-radius:var(--r-md);background:#fff;box-shadow:var(--shadow-sm);transition:transform .25s var(--ease)}
.preschool-detail-steps article:hover{}
.preschool-detail-steps b{color:var(--c-gold);font:600 12px 'IBM Plex Mono',monospace}
.preschool-detail-steps h3{margin:20px 0 7px;color:#5b3b1b;font:600 17px/1.35 Kanit,sans-serif}
.preschool-detail-steps p{margin:0;color:#927b65;font-size:13px;line-height:1.7}
.preschool-detail-note{margin-top:24px;padding:30px 32px;border-radius:var(--r-md);background:var(--c-navy);color:#fff}
.preschool-detail-note span{color:var(--c-gold-pale);font:700 10px 'IBM Plex Mono',monospace;letter-spacing:1.5px}
.preschool-detail-note h3{margin:9px 0;color:#fff;font:600 22px Kanit,sans-serif}
.preschool-detail-note p{max-width:780px;margin:0;color:#f0e3d7;font-size:14px;line-height:1.75}

.preschool-lesson-gallery{margin-top:64px}
.preschool-lesson-gallery[hidden]{display:none}
.preschool-lesson-gallery__hint{display:inline-flex;align-items:center;gap:7px;margin-top:12px;color:#90765d;font:600 12px Kanit,sans-serif}
.preschool-lesson-gallery__hint:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--c-gold)}
.preschool-lesson-gallery__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr));gap:18px;margin-top:26px}
.preschool-lesson-gallery figure{overflow:hidden;margin:0;border:1px solid var(--c-line-soft);border-radius:var(--r-md);background:#fff;box-shadow:var(--shadow-sm);transition:transform .25s var(--ease),box-shadow .25s ease}
.preschool-lesson-gallery figure:hover{box-shadow:var(--shadow-md)}
.preschool-lesson-gallery .lesson-preview{display:block;width:100%;padding:0;border:0;background:#faf5f1;cursor:zoom-in}
.preschool-lesson-gallery figure img{width:100%;height:auto;max-height:320px;background:#faf5f1;object-fit:contain}
.preschool-lesson-gallery figcaption{display:flex;align-items:flex-start;gap:10px;padding:14px 16px}
.preschool-lesson-gallery figcaption b{display:grid;flex:none;width:24px;height:24px;place-items:center;border-radius:7px;background:#64401d;color:var(--c-gold-pale);font:700 10px 'IBM Plex Mono',monospace}
.preschool-lesson-gallery figcaption span{padding-top:2px;color:#705031;font:600 13px/1.5 Kanit,sans-serif}

.lesson-preview-dialog{width:min(1000px,calc(100vw - 32px));max-width:none;max-height:calc(100vh - 32px);overflow:auto;padding:20px;border:0;border-radius:var(--r-md);background:var(--c-ink);box-shadow:0 24px 70px rgba(0,0,0,.42)}
.lesson-preview-dialog::backdrop{background:rgba(39,25,11,.75);backdrop-filter:blur(4px)}
.lesson-preview-dialog figure{margin:0}
.lesson-preview-dialog img{display:block;max-width:100%;max-height:calc(100vh - 110px);margin:0 auto;border-radius:10px;background:#fff}
.lesson-preview-dialog figcaption{padding:14px 4px 0;color:#fbf6f1;text-align:center;font:500 14px Kanit,sans-serif}
.lesson-preview-dialog__close{position:sticky;z-index:1;top:0;display:grid;width:34px;height:34px;place-items:center;margin:0 0 0 auto;border:1px solid rgba(255,255,255,.24);border-radius:50%;background:#fff;color:#5f3d1b;cursor:pointer;font:500 26px/1 Kanit,sans-serif;transition:transform .2s ease}
.lesson-preview-dialog__close:hover{background:var(--c-gold-pale);transform:scale(1.06)}

.preschool-system-requirements{margin-top:64px}
.preschool-system-requirements[hidden]{display:none}
.preschool-system-requirements>.product-long-title{max-width:740px}
.preschool-system-requirements__content{display:grid;grid-template-columns:minmax(0,.95fr) minmax(320px,1.05fr);gap:28px;align-items:center;margin-top:26px;padding:20px;border:1px solid var(--c-line-soft);border-radius:var(--r-md);background:#fcf9f7}
.preschool-system-requirements__content img{width:100%;border-radius:var(--r-md);background:#fff;box-shadow:var(--shadow-sm)}
.preschool-system-requirements__content ul{display:grid;gap:12px;margin:0;padding:0;list-style:none}
.preschool-system-requirements__content li{position:relative;padding:12px 14px 12px 40px;border:1px solid var(--c-line-soft);border-radius:var(--r-md);background:#fff;color:#654526;font:500 14px/1.55 Kanit,sans-serif}
.preschool-system-requirements__content li:before{content:"";position:absolute;top:18px;left:16px;width:9px;height:9px;border-radius:3px;background:#734a22}

@media(max-width:760px){
  .preschool-detail-explainer,.preschool-lesson-gallery,.preschool-system-requirements{margin-top:44px}
  .preschool-detail-steps{grid-template-columns:1fr}
  .preschool-detail-note{padding:24px 20px}
  .preschool-system-requirements__content{grid-template-columns:1fr}
}

/* ============================================================
   DEMO-DETAIL layout (learnflow-english.html style)
   ============================================================ */
.demo-detail-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(310px,.95fr);gap:44px;align-items:start}
.demo-detail-cover{position:relative;display:grid;min-height:400px;place-items:center;overflow:hidden;border-radius:var(--r-lg);background:var(--c-navy);color:#fff}
.demo-detail-cover__inner{position:relative;text-align:center}
.demo-detail-cover__mark{display:grid;width:120px;height:120px;margin:0 auto 18px;place-items:center;border:1px solid rgba(255,255,255,.36);border-radius:var(--r-lg);background:rgba(255,255,255,.12);font:700 40px Kanit,sans-serif}
.demo-detail-cover strong{font:600 27px Kanit,sans-serif}
.demo-detail-cover small{display:block;margin-top:4px;color:rgba(255,255,255,.78);font:11px 'IBM Plex Mono',monospace;letter-spacing:1.5px}
.demo-thumbnails{display:flex;gap:10px;margin-top:13px}
.demo-thumbnails button{width:62px;height:48px;border:2px solid transparent;border-radius:var(--r-sm);background:#8b5928;color:#fff;font:600 10px Kanit,sans-serif;transition:border-color .2s ease}
.demo-thumbnails button:first-child,.demo-thumbnails button:hover{border-color:var(--c-gold)}
.demo-detail-copy .demo-product-label{margin-bottom:14px}
.demo-detail-copy h2{margin:0;color:var(--c-ink);font:600 clamp(28px,3.6vw,38px)/1.24 Kanit,sans-serif}
.demo-detail-copy>p{margin:14px 0 22px;color:var(--c-muted);font-size:15.5px;line-height:1.8}
.demo-feature-list{display:grid;gap:10px;margin:0;padding:0;list-style:none}
.demo-feature-list li{position:relative;padding:12px 14px 12px 36px;border:1px solid var(--c-line-soft);border-radius:var(--r-md);background:#fff;color:#775c42;font-size:14px;line-height:1.55}
.demo-feature-list li:before{content:"✓";position:absolute;left:14px;top:12px;color:var(--c-gold)}
.demo-specs{margin-top:44px;padding-top:32px;border-top:1px solid var(--c-line-soft)}
.demo-specs h2{margin:0 0 16px;color:var(--c-ink);font:600 24px Kanit,sans-serif}
.demo-specs dl{display:grid;grid-template-columns:150px 1fr;margin:0;border-top:1px solid var(--c-line-soft)}
.demo-specs dt,.demo-specs dd{margin:0;padding:13px 10px;border-bottom:1px solid var(--c-line-soft);font-size:14px}
.demo-specs dt{color:#8d755d;font-weight:600}
.demo-specs dd{color:#5c4126}

@media(max-width:850px){.demo-detail-grid{grid-template-columns:1fr;gap:24px}}
@media(max-width:560px){.demo-detail-cover{min-height:300px}.demo-specs dl{grid-template-columns:1fr}.demo-specs dt{padding-bottom:2px;border-bottom:0}.demo-specs dd{padding-top:2px}}

/* ============================================================
   Support classes retained for HTML that references them
   ============================================================ */
.top{margin:34px 0 26px;padding:28px 30px;border:1px solid var(--c-line-soft);border-radius:var(--r-lg);background:linear-gradient(135deg,var(--c-navy-deep),var(--c-navy));color:#fff;box-shadow:var(--shadow-lg);display:flex;align-items:center;justify-content:space-between;gap:22px}
.top .eyebrow{color:var(--c-gold-pale);font:700 11px 'IBM Plex Mono',monospace;letter-spacing:1.5px}
.top h1{margin:8px 0 6px;color:#fff;font:700 clamp(28px,3.8vw,44px)/1.16 Kanit,sans-serif}
.top p{margin:0;color:#efe3d8;font:15px/1.75 Sarabun,sans-serif}
.top-actions{display:flex;gap:10px}
.back{display:inline-flex;align-items:center;padding:11px 16px;border:1px solid rgba(255,255,255,.3);border-radius:var(--r-sm);background:rgba(255,255,255,.1);color:#fff;font:700 14px Kanit,sans-serif;white-space:nowrap;transition:.2s ease}
.back:hover{background:#fff;color:var(--c-ink)}
.wrap{width:min(1120px,calc(100% - 48px));margin:0 auto;padding:0 0 72px}

@media(max-width:700px){.top{display:block;text-align:center}.top-actions{justify-content:center;margin-top:18px}}