:root{
    /* surfaces */
    --bone:#FDFAF3;          /* page */
    --cream:#FBF3E2;         /* raised cards */
    --sand:#F3E3C0;          /* alternating band */
    --dune:#EAD3A4;          /* deeper band */
    --char:#2A2320;          /* ink + dark sections */
    --ink:#2A2320;
    --ink-soft:#5B4F42;

    /* accents — desert reds through to Mongolian turquoise */
    --rock:#8A4B2A;
    --clay:#C4562F;          /* flaming-cliff red */
    --clay-ink:#9C3E20;      /* same hue, safe on light backgrounds */
    --amber:#E2952C;         /* fills and buttons */
    --amber-soft:#F0B65E;    /* on dark backgrounds */
    --amber-ink:#9C5A14;     /* amber as text on light backgrounds */
    --teal:#1E7F72;          /* turquoise — the site's dark surface */
    --teal-deep:#155A51;     /* the same hue, deeper: small text sits on this */
    --teal-night:#0E3D37;    /* deepest, for panels that must hold body copy */
    --teal-ink:#16665C;      /* same hue, safe as text on light backgrounds */
    --teal-soft:#39A192;
    --sky:#5E93AD;
    --fossil:#4C7535;
    --plum:#7A3D5C;

    --display:'Oranienbaum',serif;
    --body:'Inter',sans-serif;
    --maxw:1180px;
  }
  *{margin:0;padding:0;box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{font-family:var(--body);background:var(--bone);color:var(--ink);line-height:1.6;font-size:16px;overflow-x:hidden}
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  :focus-visible{outline:3px solid var(--amber);outline-offset:3px;border-radius:2px}
  .wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
  .eyebrow{font-size:12px;letter-spacing:.22em;text-transform:uppercase;font-weight:600;color:var(--clay-ink)}
  .display{font-family:var(--display);font-weight:400;line-height:1.08;letter-spacing:.01em}
  h2.display{font-size:clamp(30px,4.5vw,46px);margin:10px 0 14px}
  .section{padding:88px 0}
  .page:not([data-page="home"]) .section{padding:64px 0 88px}
  .section-head{max-width:640px;margin-bottom:44px}
  .section-head p{color:var(--ink-soft)}
  .btn{display:inline-flex;align-items:center;gap:10px;padding:14px 26px;border-radius:4px;font-weight:600;font-size:15px;border:2px solid transparent;cursor:pointer;transition:transform .15s ease, box-shadow .15s ease, background .15s ease}
  .btn:hover{transform:translateY(-2px)}
  .btn-amber{background:var(--amber);color:var(--char)}
  .btn-amber:hover{background:#F0A63C;box-shadow:0 10px 24px rgba(226,149,44,.42)}
  .btn-teal{background:var(--teal);color:#fff}
  .btn-teal:hover{background:#26978A;box-shadow:0 10px 24px rgba(30,127,114,.38)}
  .btn-ghost{border-color:var(--bone);color:var(--bone);background:transparent}
  .btn-ghost:hover{background:rgba(245,240,230,.12)}
  .btn-outline{border-color:var(--teal-ink);color:var(--teal-ink);background:rgba(255,255,255,.55)}
  .btn-outline:hover{background:var(--teal-ink);color:#fff}

  /* ---------- NAV ---------- */
  .nav{position:fixed;top:0;left:0;right:0;z-index:50;background:rgba(30,127,114,.94);backdrop-filter:blur(10px);border-bottom:2px solid var(--amber)}
  .nav-inner{max-width:var(--maxw);margin:0 auto;padding:0 24px;height:66px;display:flex;align-items:center;justify-content:space-between;gap:10px}
  .brand{display:flex;align-items:center;gap:12px;color:var(--bone);flex:none}
  .brand-mark{width:42px;height:42px;border-radius:50%;overflow:hidden;flex-shrink:0;
    box-shadow:0 0 0 2px rgba(255,255,255,.28), 0 2px 8px rgba(0,0,0,.22)}
  .brand-mark img{width:100%;height:100%;object-fit:cover;display:block}
  
  .brand-name{font-family:var(--display);font-size:17px;line-height:1.15}
  .brand-sub{font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:#EFFAF8;opacity:.92}
  /* Сошиал icon нэмэгдсэн тул зайг чангатгав — цэс мөр таслахгүй байх ёстой */
  .nav-links{display:flex;gap:19px;font-size:14px;font-weight:500;color:#F2FBF9;white-space:nowrap}
  .nav-links a{opacity:.85;transition:opacity .15s, color .15s;padding:6px 0}
  .nav-links a:hover{opacity:1;color:#FFF8EC}
  .nav-links a.current{opacity:1;color:var(--amber-soft)}

  /* Унждаг цэс — «Ил тод байдал» */
  .nav-drop{position:relative}
  .nav-drop-btn{display:inline-flex;align-items:center;gap:5px;background:none;border:0;cursor:pointer;
    padding:6px 0;color:inherit;font:inherit;font-weight:500;opacity:.85;transition:opacity .15s,color .15s}
  .nav-drop-btn svg{width:13px;height:13px;transition:transform .18s}
  .nav-drop:hover .nav-drop-btn,.nav-drop.open .nav-drop-btn{opacity:1;color:#FFF8EC}
  .nav-drop.current .nav-drop-btn{opacity:1;color:var(--amber-soft)}
  .nav-drop:hover .nav-drop-btn svg,.nav-drop.open .nav-drop-btn svg{transform:rotate(180deg)}
  .nav-drop-menu{position:absolute;left:-14px;top:100%;margin-top:12px;min-width:196px;z-index:60;
    background:#0E4A43;border:1px solid rgba(255,255,255,.16);border-radius:6px;
    box-shadow:0 16px 38px rgba(0,0,0,.34);padding:6px;
    opacity:0;visibility:hidden;transform:translateY(-6px);
    transition:opacity .16s, transform .16s, visibility .16s}
  /* Товч ба цэсний хоорондох зайг гүүрлэж, хулгана явахад хаагдахгүй болгоно */
  .nav-drop::after{content:'';position:absolute;left:0;right:0;top:100%;height:14px}
  .nav-drop:hover .nav-drop-menu,.nav-drop.open .nav-drop-menu,
  .nav-drop:focus-within .nav-drop-menu{opacity:1;visibility:visible;transform:translateY(0)}
  .nav-links .nav-drop-menu a{display:block;padding:9px 12px;border-radius:4px;opacity:.9;font-size:13.5px}
  .nav-links .nav-drop-menu a:hover{background:rgba(255,255,255,.12);opacity:1}
  .nav-links .nav-drop-menu a.current{background:rgba(212,160,86,.18);color:var(--amber-soft);opacity:1}
  /* Сошиал сувгууд */
  /* Хамгийн баруун булан — хэлний товчны ард */
  .nav-social{display:flex;align-items:center;gap:2px;flex:none;margin-left:-2px}
  .nav-social a{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;
    color:#DDF0EC;opacity:.8;transition:opacity .15s, background .15s, transform .15s}
  .nav-social a:hover{opacity:1;background:rgba(255,255,255,.14);transform:translateY(-1px)}
  .nav-social svg{width:18px;height:18px}

  /* Ажилтны товч — зочдод бүдэг, гэхдээ үргэлж гарт байна. */
  .nav-admin{display:inline-flex;align-items:center;gap:7px;flex:none;color:#DDF0EC;font-size:12.5px;font-weight:600;
    border:1px solid rgba(255,255,255,.32);border-radius:4px;padding:6px 12px;opacity:.72;
    transition:opacity .15s, background .15s, border-color .15s;white-space:nowrap}
  .nav-admin svg{width:14px;height:14px}
  .nav-admin:hover{opacity:1;background:rgba(255,255,255,.12)}
  /* Нэвтэрсэн үед ялгарч, ногоон цэгтэй болно. */
  .nav-admin.in{opacity:1;border-color:var(--amber);color:#FFE6BE}
  .nav-admin.in::after{content:'';width:7px;height:7px;border-radius:50%;background:#7BC96F;
    box-shadow:0 0 0 3px rgba(123,201,111,.28)}
  @media(max-width:560px){.nav-admin span{display:none}.nav-admin{padding:6px 9px}}

  .lang-toggle{display:flex;flex:none;border:1px solid rgba(255,255,255,.45);border-radius:4px;overflow:hidden}
  .lang-toggle button{flex:none}
  .lang-toggle button{background:transparent;border:0;color:#F5FCFB;font-family:var(--body);font-size:12px;font-weight:600;letter-spacing:.08em;padding:7px 12px;cursor:pointer}
  .lang-toggle button.active{background:var(--amber);color:var(--char)}
  /* ---------- Утасны цэс ---------- */
  .nav-burger{display:none;flex:none;width:38px;height:38px;border:1px solid rgba(255,255,255,.35);
    border-radius:6px;background:none;color:#F2FBF9;cursor:pointer;place-items:center}
  .nav-burger svg{width:20px;height:20px;grid-area:1/1}
  .nav-burger .nb-close{display:none}
  .nav-burger[aria-expanded="true"] .nb-open{display:none}
  .nav-burger[aria-expanded="true"] .nb-close{display:block}
  .nav-mobile{position:absolute;top:100%;left:0;right:0;z-index:60;
    background:#0C4038;border-top:1px solid rgba(255,255,255,.14);
    box-shadow:0 26px 44px rgba(0,0,0,.4);
    display:none;flex-direction:column;padding:6px 0 12px;
    max-height:calc(100vh - 68px);overflow-y:auto}
  .nav-mobile.open{display:flex}
  .nav-mobile a{padding:13px 26px;color:#EAF7F4;font-size:15px;font-weight:500;
    border-bottom:1px solid rgba(255,255,255,.06)}
  .nav-mobile a:hover{background:rgba(255,255,255,.08)}
  .nav-mobile a.current{color:var(--amber-soft)}
  .nav-mobile .nm-group{font-size:11px;letter-spacing:.16em;text-transform:uppercase;
    color:#9CC8BF;padding:16px 26px 6px}
  .nav-mobile .nm-social{display:flex;gap:6px;padding:14px 22px 4px}
  .nav-mobile .nm-social a{display:grid;place-items:center;width:38px;height:38px;
    border-radius:50%;padding:0;border:0;color:#DDF0EC;opacity:.85}
  .nav-mobile .nm-social a:hover{opacity:1;background:rgba(255,255,255,.12)}
  .nav-mobile .nm-social svg{width:19px;height:19px}
  .nav-mobile .nm-admin{margin-top:4px;border-top:1px solid rgba(255,255,255,.14);
    border-bottom:0;display:flex;align-items:center;gap:10px;color:#FFE0AD}
  @media(max-width:900px){
    .nav-links{display:none}
    .nav-social{display:none}
    .nav-admin{display:none}
    .nav-burger{display:grid}
    .nav-inner{padding:0 14px;gap:8px}
    .brand-name{font-size:13.5px}
    .brand-sub{display:none}
  }
  /* Утсанд логоны хажууд музейн нэр, аймгийг хоёр мөрөөр хадгална. */
  @media(max-width:600px){
    .brand{gap:8px;min-width:0;flex:1}
    .brand-mark{width:40px;height:40px}
    .brand>span:nth-child(2){display:block;min-width:0}
    .brand-name{display:block;font-size:11px;line-height:1.18;max-width:142px}
    .brand-sub{display:block;font-size:7.5px;line-height:1.2;letter-spacing:.12em;margin-top:3px}
    .lang-toggle button{padding:7px 9px}
  }

  /* ---------- HERO ---------- */
  /* WebGL ачаалахаас өмнөх нөөц дэвсгэр — 3D дүр зурагтайгаа ижил хар орон зай */
  .hero{position:relative;min-height:100vh;background:
    radial-gradient(ellipse 90% 55% at 62% 66%, rgba(52,50,58,.55), transparent 70%),
    linear-gradient(180deg,#000 0%, #08080B 55%, #101014 100%);
    color:var(--bone);display:flex;align-items:center;overflow:hidden}
  #dino-canvas{position:absolute;inset:0;width:100%;height:100%;display:block;z-index:0}
  /* Динозавр солигдоход зөвхөн текст зөөлөн солигдоно (дүр шууд солигдоно) */
  .hero-inner{transition:opacity .3s ease}
  .hero-inner.dino-fade-text{opacity:0}
  /* Гарчгийг уншигдахуйц байлгах бүрхэвч. Тэнгэр цэлмэг болсон тул урьдынхаас
     нимгэн — уулс, үүл нь цаанаас нь харагдана. */
  .hero-veil{position:absolute;inset:0;z-index:1;pointer-events:none;background:linear-gradient(90deg, rgba(7,42,40,.88) 0%, rgba(9,48,45,.66) 26%, rgba(11,54,50,.22) 48%, transparent 62%),linear-gradient(180deg, rgba(7,42,40,.34) 0%, transparent 22%, transparent 58%, rgba(7,42,40,.58) 100%)}
  .hero-inner{position:relative;z-index:2;max-width:var(--maxw);margin:0 auto;padding:120px 24px 140px;width:100%}
  /* Шаварлаг өнгө нь бараан бүрхэвч дээр бүдэг тул нүүрэн дээр шараар харуулна */
  .hero .eyebrow{color:#FFD199;text-shadow:0 1px 14px rgba(0,0,0,.45)}
  /* Динозаврын нэрс урт тул мөрийг өргөн байлгаж, balance-аар мөрүүдийг
     тэнцүү хуваана — ганц үг доошоо унжихгүй */
  .hero h1{font-size:clamp(38px,5.6vw,64px);max-width:19ch;margin:16px 0 20px;
    text-wrap:balance;text-shadow:0 2px 30px rgba(0,0,0,.5)}
  .hero-sub{max-width:46ch;color:var(--sand);font-size:17px;margin-bottom:34px;
    text-align:justify}
  .hero-more{display:none}
  .hero-ctas{display:flex;gap:14px;flex-wrap:wrap}
  .hero-facts{position:absolute;z-index:2;right:32px;bottom:110px;display:flex;flex-direction:column;gap:14px}
  .fact{background:rgba(21,90,81,.72);border:1px solid rgba(255,255,255,.22);border-left:3px solid var(--amber);border-radius:6px;padding:12px 18px;backdrop-filter:blur(8px)}
  .fact b{font-family:var(--display);font-size:26px;font-weight:400;color:var(--amber-soft);display:block;line-height:1.1}
  .fact span{font-size:12px;color:#DCF1ED;letter-spacing:.04em}
  /* Утсан дээр картууд динозаврыг дарахгүй — hero баганаар эвхэгдэж,
     картууд текстийн доор 3 багана болж эгнэнэ */
  @media(max-width:900px){
    .hero{flex-direction:column;justify-content:center}
    .hero-inner{padding:104px 22px 10px}
    .hero-facts{position:static;display:grid;grid-template-columns:repeat(3,1fr);
      gap:10px;width:100%;padding:0 22px;margin:26px 0 90px}
    .fact{padding:12px 12px 10px;border-left-width:2px}
    .fact b{font-size:21px}
    .fact span{font-size:10.5px;line-height:1.35;display:block}
  }
  @media(max-width:600px){
    .hero{justify-content:flex-start;min-height:1120px}
    .hero-inner{padding:104px 20px 0}
    .hero .eyebrow{font-size:10.5px;letter-spacing:.18em}
    .hero h1{font-size:37px;line-height:1.06;margin:14px 0 14px;max-width:100%}
    .hero-sub{font-size:15px;line-height:1.55;text-align:left;margin:0;max-width:100%;
      display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden}
    .hero-sub.expanded{display:block;overflow:visible}
    .hero-more{display:inline-block;border:0;background:none;color:var(--amber-soft);font:600 13px var(--body);
      padding:7px 0;cursor:pointer}
    .hero-more .hm-close{display:none}
    .hero-more.expanded .hm-open{display:none}
    .hero-more.expanded .hm-close{display:inline}
    .hero-ctas{margin-top:245px;gap:10px}
    .hero-ctas .btn{flex:1 1 0;min-width:0;padding:12px 8px;font-size:13.5px;justify-content:center;text-align:center}
    .hero-facts{grid-template-columns:repeat(3,minmax(0,1fr));padding:0 20px;margin:20px 0 86px;gap:8px}
    .fact{padding:10px 9px 9px}
    .fact b{font-size:19px}
    .fact span{font-size:9.5px}
    .dino-switches{bottom:24px}
  }
  .scroll-hint{position:absolute;left:50%;bottom:84px;transform:translateX(-50%);z-index:2;font-size:11px;letter-spacing:.24em;text-transform:uppercase;color:var(--sand);opacity:.7;animation:bob 2.4s ease-in-out infinite}

  /* Динозавр сонгох товчнууд — хэвтээ эгнээ (баруун талын картуудын доор),
     тус бүр өөрийн дүрстэй */
  .dino-switches{position:absolute;right:32px;bottom:28px;z-index:3;
    display:flex;flex-direction:row;gap:10px}
  .dino-btn{width:54px;height:54px;border-radius:50%;cursor:pointer;
    border:1.5px solid rgba(255,255,255,.38);
    background:rgba(14,74,66,.62);backdrop-filter:blur(8px);color:#E8F2EC;
    display:grid;place-items:center;
    box-shadow:0 6px 20px rgba(0,0,0,.30);
    transition:transform .18s, background .18s, border-color .18s, color .18s}
  .dino-btn:hover{transform:scale(1.09);background:rgba(20,96,86,.82);color:#FFE9C4}
  .dino-btn.on{border-color:var(--amber);background:rgba(20,96,86,.9);color:var(--amber-soft);
    box-shadow:0 6px 20px rgba(0,0,0,.30), 0 0 0 3px rgba(212,160,86,.25)}
  .dino-btn .ds-ico{width:36px;height:36px;grid-area:1/1;object-fit:contain;
    filter:drop-shadow(0 0 6px rgba(255,240,200,.25))}
  .dino-btn.on .ds-ico{filter:drop-shadow(0 0 8px rgba(255,220,150,.55))}
  .dino-btn[disabled]{cursor:wait;opacity:.75}
  .ds-spin{grid-area:1/1;width:28px;height:28px;border-radius:50%;
    border:2px solid rgba(255,255,255,.25);border-top-color:var(--amber);
    animation:spin 1s linear infinite}
  @media(max-width:900px){
    .dino-switches{right:50%;transform:translateX(50%);bottom:24px;gap:10px}
    .dino-btn{width:46px;height:46px}
    .dino-btn .ds-ico{width:26px;height:26px}
    .scroll-hint{display:none}   /* товчнуудтай давхцдаг тул утсанд нуана */
  }
  @keyframes bob{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,8px)}}

  #hero-loading{position:absolute;z-index:4;left:50%;top:50%;transform:translate(-50%,-50%);display:flex;flex-direction:column;align-items:center;gap:14px;color:#DCF1ED;font-size:12px;letter-spacing:.2em;text-transform:uppercase;transition:opacity .5s ease;pointer-events:none}
  .bone-spin{width:34px;height:34px;border:2px solid rgba(255,255,255,.24);border-top-color:var(--amber);border-radius:50%;animation:spin 1s linear infinite}
  @keyframes spin{to{transform:rotate(360deg)}}

  /* strata divider */
  .strata{display:block;width:100%;height:70px;margin-bottom:-1px}

  /* ---------- INFO STRIP ---------- */
  .info-strip{background:linear-gradient(100deg,var(--rock) 0%,var(--clay) 55%,#D06A38 100%);color:var(--bone);padding:0}
  .info-grid{max-width:var(--maxw);margin:0 auto;padding:34px 24px;display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
  .info-cell{display:flex;gap:16px;align-items:flex-start}
  .info-cell svg{width:30px;height:30px;flex-shrink:0;color:#FFDCA6}
  .info-cell h3{font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--sand);margin-bottom:4px}
  .info-cell p{font-size:15px;line-height:1.5}
  .info-cell small{color:var(--sand);opacity:.8;display:block}
  /* Хаягийн нүд — Google Maps руу очих холбоос */
  a.info-map{border-radius:10px;margin:-10px -14px;padding:10px 14px;
    transition:background .15s, transform .15s}
  a.info-map:hover{background:rgba(255,255,255,.09);transform:translateY(-2px)}
  a.info-map:hover svg{color:var(--amber)}
  .map-hint{display:inline-flex;align-items:center;gap:5px;margin-top:8px;font-size:12px;
    font-weight:600;letter-spacing:.02em;color:#FFDCA6}
  .map-hint::after{content:'↗'}
  @media(max-width:820px){.info-grid{grid-template-columns:1fr}}

  /* ---------- PAGES ---------- */
  .page{display:none}
  .page.active{display:block;animation:pageIn .28s ease both}
  .page:not([data-page="home"]){padding-top:66px}
  @keyframes pageIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
  .nav-links a.current{opacity:1;color:#FFF8EC}
  .nav-links a.current::after{content:'';display:block;height:2px;background:var(--amber);
    border-radius:2px;margin-top:5px}

  /* page intro band for inner pages */
  .page-head{background:linear-gradient(120deg,var(--teal-deep) 0%,var(--teal-night) 100%);color:#fff;
    padding:52px 0 46px}
  .page-head .wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
  .page-head .eyebrow{color:#FFD99A}
  .page-head h1{font-family:var(--display);font-weight:400;font-size:clamp(32px,5vw,50px);
    line-height:1.08;margin:10px 0 12px}
  .page-head p{color:#DDF2EE;max-width:60ch;font-size:16.5px}
  .crumb{display:inline-flex;align-items:center;gap:8px;background:transparent;border:0;cursor:pointer;
    color:#CFEDE7;font-family:var(--body);font-size:13.5px;font-weight:600;padding:0 0 14px}
  .crumb:hover{color:#FFF8EC}
  .crumb svg{width:15px;height:15px}

  /* exhibition detail lives on the page now, not in an overlay */
  .crumb-dark{color:var(--teal-ink);padding:0 0 18px}
  .crumb-dark:hover{color:var(--clay-ink)}
  #ex-detail:empty{display:none}
  #ex-detail .ex-detail h1{margin-top:0}
  #ex-detail .ex-grid{margin-top:0}

  /* ---------- ABOUT ---------- */
  .about-section{background:linear-gradient(180deg,var(--bone) 0%,#F6FBFA 60%,#EDF6F4 100%)}
  .about-block{margin-bottom:78px}
  .about-block:last-child{margin-bottom:0}

  /* photo frames the museum swaps for real pictures */
  .photo{position:relative;border-radius:12px;overflow:hidden;background:
    linear-gradient(150deg,#E8DFC9 0%,#D8CBAE 55%,#C9B893 100%);
    display:grid;place-items:center;border:1px solid #D6C7A4}
  .photo::after{content:'';position:absolute;inset:10px;border:1px dashed rgba(90,70,40,.30);
    border-radius:8px;pointer-events:none}
  .photo-in{display:flex;flex-direction:column;align-items:center;gap:10px;
    color:#5A472C;text-align:center;padding:20px}
  .photo-in svg{width:40px;height:40px;opacity:.65}
  .photo-in span{font-size:11px;letter-spacing:.16em;text-transform:uppercase;font-weight:600}

  /* greeting */
  .greet{display:grid;grid-template-columns:300px 1fr;gap:46px;align-items:start}
  @media(max-width:860px){.greet{grid-template-columns:1fr;gap:28px}}
  .greet .photo{aspect-ratio:3/4}
  .greet-name{margin-top:18px;padding-top:16px;border-top:2px solid var(--amber)}
  .greet-name b{display:block;font-family:var(--display);font-size:21px;font-weight:400}
  .greet-name span{font-size:13px;color:var(--ink-soft)}
  .greet-text p{margin-bottom:16px}
  .greet-text p:last-child{margin-bottom:0}
  .greet-quote{font-family:var(--display);font-size:clamp(21px,2.6vw,27px);line-height:1.35;
    color:var(--clay-ink);border-left:4px solid var(--amber);padding-left:22px;margin:0 0 24px}

  /* mission boxes */
  .mission{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
  @media(max-width:900px){.mission{grid-template-columns:1fr}}
  .mbox{background:#fff;border:1px solid #E2EDEA;border-radius:12px;padding:30px 28px;
    position:relative;overflow:hidden;transition:transform .2s ease, box-shadow .2s ease}
  .mbox:hover{transform:translateY(-4px);box-shadow:0 16px 34px rgba(30,127,114,.16)}
  .mbox::before{content:'';position:absolute;top:0;left:0;right:0;height:5px}
  .mbox:nth-child(1)::before{background:var(--clay)}
  .mbox:nth-child(2)::before{background:var(--amber)}
  .mbox:nth-child(3)::before{background:var(--teal)}
  .mbox-icon{width:50px;height:50px;border-radius:12px;display:grid;place-items:center;margin-bottom:18px}
  .mbox-icon svg{width:26px;height:26px;color:#fff}
  .mbox:nth-child(2) .mbox-icon svg{color:var(--char)}
  .mbox:nth-child(1) .mbox-icon{background:var(--clay)}
  .mbox:nth-child(2) .mbox-icon{background:var(--amber)}
  .mbox:nth-child(3) .mbox-icon{background:var(--teal)}
  .mbox h3{font-family:var(--display);font-size:23px;font-weight:400;margin-bottom:12px}
  .mbox p{font-size:14.5px;color:var(--ink-soft)}
  .mbox ol{margin:0;padding-left:20px;font-size:14.5px;color:var(--ink-soft)}
  .mbox ol li{margin-bottom:9px}
  .mbox ol li:last-child{margin-bottom:0}
  .mbox ol li::marker{color:var(--teal);font-weight:700}

  /* introduction */
  .intro{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start}
  @media(max-width:860px){.intro{grid-template-columns:1fr;gap:30px}}
  .intro-text p{margin-bottom:16px}
  .intro-photos{display:grid;gap:18px}
  .intro-photos .photo:first-child{aspect-ratio:4/3}
  .intro-photos .photo:last-child{aspect-ratio:16/9}
  .intro-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:26px}
  .istat{background:#fff;border:1px solid #E2EDEA;border-radius:10px;padding:18px 16px;text-align:center}
  .istat b{display:block;font-family:var(--display);font-size:26px;font-weight:400;color:var(--teal-ink);line-height:1.1}
  .istat span{font-size:12px;color:var(--ink-soft)}

  /* ---------- EXHIBITIONS ---------- */
  .ex-section{background:linear-gradient(160deg,#FFF6E2 0%,#FFE9C4 45%,#FFDCA8 100%);position:relative;overflow:hidden}
  .ex-section::after{content:'';position:absolute;right:-90px;top:-90px;width:340px;height:340px;
    border-radius:50%;background:radial-gradient(circle,rgba(226,149,44,.26),transparent 68%);pointer-events:none}
  .ex-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:44px}
  .ex-head .section-head{margin-bottom:0}
  .ex-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;position:relative;z-index:1}
  @media(max-width:900px){.ex-grid{grid-template-columns:1fr}}
  .ex-card{background:#fff;cursor:pointer;border-radius:10px;overflow:hidden;border:1px solid #EADCC0;box-shadow:0 2px 8px rgba(42,35,32,.07);transition:transform .2s ease, box-shadow .2s ease;position:relative}
  .ex-card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;z-index:2}
  .ex-card:nth-child(1)::before{background:var(--clay)}
  .ex-card:nth-child(2)::before{background:var(--amber)}
  .ex-card:nth-child(3)::before{background:var(--teal)}
  .ex-card:hover{transform:translateY(-6px);box-shadow:0 18px 36px rgba(138,75,42,.20)}
  .ex-media{height:230px;position:relative;display:grid;place-items:center;overflow:hidden}
  .ex-media svg{width:86px;height:86px;opacity:.9}
  .ex-tag{position:absolute;top:14px;left:14px;background:rgba(43,39,35,.85);color:var(--sand);font-size:11px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;padding:5px 11px;border-radius:3px;z-index:2}
  /* Зураг тавьсан үед өнгөт хавтасны оронд зураг бүтэн эзэлнэ */
  .ex-media.has-photo img,.ex-hero.has-photo img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
  .ex-body{padding:22px 22px 26px}
  .ex-body h3{font-family:var(--display);font-size:23px;font-weight:400;margin-bottom:8px}
  .ex-body p{font-size:14px;color:var(--ink-soft);margin-bottom:14px}
  .ex-link{font-size:13px;font-weight:600;color:var(--teal-ink);letter-spacing:.04em}
  .ex-link:hover{text-decoration:underline}

  /* ---------- СОЁЛЫН ӨВ: дурсгалт газрууд ---------- */
  .col-section{background:linear-gradient(180deg,var(--sand) 0%,var(--dune) 100%)}
  .site-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
  @media(max-width:960px){.site-grid{grid-template-columns:repeat(2,1fr)}}
  @media(max-width:620px){.site-grid{grid-template-columns:1fr}}
  /* Дарж орох хуудасгүй тул cursor:pointer, hover-ийн өргөлт байхгүй. */
  .site{background:var(--bone);border-radius:10px;overflow:hidden;border:1px solid #E0CDA2;
    display:flex;flex-direction:column}
  .site-media{height:190px;display:grid;place-items:center;position:relative;overflow:hidden}
  .site:nth-child(6n+1) .site-media{background:linear-gradient(150deg,#5E2C18,#A8461F)}
  .site:nth-child(6n+2) .site-media{background:linear-gradient(150deg,#7A4412,#C4862A)}
  .site:nth-child(6n+3) .site-media{background:linear-gradient(150deg,#123F3A,#1E7F72)}
  .site:nth-child(6n+4) .site-media{background:linear-gradient(150deg,#4A2338,var(--plum))}
  .site:nth-child(6n+5) .site-media{background:linear-gradient(150deg,#22432A,#4C7535)}
  .site:nth-child(6n+6) .site-media{background:linear-gradient(150deg,#1F3E4C,var(--sky))}
  .site-media svg{width:64px;height:64px;color:#FBEFD6;opacity:.85}
  .site-media.has-photo img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
  .site-no{position:absolute;top:12px;left:12px;z-index:2;min-width:28px;height:28px;
    display:grid;place-items:center;border-radius:50%;background:rgba(43,39,35,.82);
    color:var(--sand);font-size:13px;font-weight:700;font-variant-numeric:tabular-nums}
  .site-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:8px;flex:1}
  .site-soum{display:inline-flex;align-items:center;align-self:flex-start;
    font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
    color:var(--teal-ink);background:rgba(30,127,114,.13);padding:4px 11px;border-radius:999px}
  .site-body h3{font-family:var(--display);font-size:19px;font-weight:400;line-height:1.25}
  .site-body p{font-size:13.5px;color:var(--ink-soft)}
  .item.hidden{display:none}

  /* ---------- TIMELINE ---------- */
  .tl-section{background:linear-gradient(165deg,var(--teal) 0%,var(--teal-deep) 55%,var(--teal-night) 100%);color:var(--bone)}
  .tl-section .section-head p{color:#DDF2EE}
  .tl-tabs{display:grid;grid-template-columns:repeat(3,1fr);border-radius:8px;overflow:hidden;border:1px solid rgba(255,255,255,.22)}
  .tl-tab{border:0;cursor:pointer;font-family:var(--body);text-align:left;padding:22px 22px 18px;color:#F0FAF8;position:relative;transition:filter .15s}
  .tl-tab{background:linear-gradient(160deg,#3E4A48,#5A6A66)}  /* 4 дэх ба цааших таб */
  .tl-tab:nth-child(1){background:linear-gradient(160deg,#4A3550,#7A3D5C)}
  .tl-tab:nth-child(2){background:linear-gradient(160deg,#1B4F49,var(--teal-soft))}
  .tl-tab:nth-child(3){background:linear-gradient(160deg,#8A4B2A,#C4562F)}
  .tl-tab:hover{filter:brightness(1.12)}
  .tl-tab .tl-name{font-family:var(--display);font-size:22px;display:block;color:var(--bone)}
  .tl-tab .tl-years{font-size:12px;letter-spacing:.06em;opacity:.85}
  .tl-tab.active::after{content:"";position:absolute;left:0;right:0;bottom:0;height:5px;background:var(--amber)}
  .tl-tab.active{filter:brightness(1.18)}
  .tl-panel{margin-top:34px;display:grid;grid-template-columns:1.1fr 1fr;gap:44px;align-items:start}
  @media(max-width:860px){.tl-panel{grid-template-columns:1fr}.tl-tabs{grid-template-columns:1fr}}
  .tl-panel h3{font-family:var(--display);font-size:30px;font-weight:400;color:#FFD99A;margin-bottom:12px}
  .tl-panel p{color:#E3F4F0;font-size:15px;margin-bottom:16px}
  .tl-finds h4{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:#FFD99A;margin-bottom:14px}
  .tl-find{display:flex;gap:14px;padding:13px 0;border-bottom:1px solid rgba(255,255,255,.16)}
  .tl-find:last-child{border-bottom:0}
  .tl-find svg{width:22px;height:22px;flex-shrink:0;color:#FFD99A;margin-top:2px}
  .tl-find b{display:block;font-size:15px;color:var(--bone)}
  .tl-find span{font-size:13px;color:#D6EEE9}

  /* ---------- NEWS ---------- */
  .news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
  @media(max-width:900px){.news-grid{grid-template-columns:1fr}}
  .news-card{background:var(--cream);border:1px solid #EADCC0;border-left:5px solid var(--amber);border-radius:10px;padding:26px;transition:transform .2s, box-shadow .2s}
  .news-card:nth-child(2){border-left-color:var(--teal)}
  .news-card:nth-child(3){border-left-color:var(--clay)}
  .news-card:hover{transform:translateY(-5px);box-shadow:0 16px 32px rgba(138,75,42,.18)}
  .news-date{font-size:12px;font-weight:600;letter-spacing:.1em;color:var(--amber-ink);text-transform:uppercase}
  .news-card h3{font-family:var(--display);font-size:21px;font-weight:400;margin:10px 0 10px}
  .news-card p{font-size:14px;color:var(--ink-soft)}

  /* ---------- NEWS ---------- */
  .news-home{background:linear-gradient(180deg,#FFFDF8 0%,#FBF3E2 100%)}
  .news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
    flex-wrap:wrap;margin-bottom:40px}
  .news-head .section-head{margin-bottom:0}
  .news-card{cursor:pointer}
  .news-cat{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.1em;
    text-transform:uppercase;padding:4px 10px;border-radius:999px;margin-left:10px;vertical-align:2px}
  .cat-event{background:rgba(226,149,44,.20);color:#7A450C}
  .cat-research{background:rgba(30,127,114,.16);color:var(--teal-ink)}
  .cat-program{background:rgba(196,86,47,.16);color:var(--clay-ink)}
  .news-more{display:inline-block;margin-top:14px;font-size:13px;font-weight:600;color:var(--teal-ink)}
  .news-card:hover .news-more{text-decoration:underline}

  /* article view */
  #news-detail:empty{display:none}
  .article{max-width:760px}
  .article .meta{display:flex;align-items:center;gap:4px;flex-wrap:wrap;margin-bottom:10px}
  .article h1{font-family:var(--display);font-weight:400;line-height:1.1;
    font-size:clamp(28px,4.2vw,42px);margin:0 0 18px}
  .article .lead{font-size:18px;color:var(--ink-soft);margin-bottom:26px;
    padding-bottom:22px;border-bottom:1px solid #E7DCC4}
  .article p{margin-bottom:17px}
  .article .figure{border-radius:12px;margin:28px 0;aspect-ratio:16/9}
  .news-rest{margin-top:56px;padding-top:34px;border-top:1px solid #E7DCC4}
  .news-rest h3{font-family:var(--display);font-size:24px;font-weight:400;margin-bottom:22px}

  /* ---------- Мэдээний зургууд ---------- */
  /* Нэг том зураг + доор нь зургийн тоогоор бөөрөнхий цэг. */
  .gallery{margin:28px 0}
  .gallery-main{display:block;width:100%;padding:0;border:0;border-radius:12px;overflow:hidden;
    cursor:zoom-in;position:relative;background:#EFE6D4;transition:box-shadow .18s}
  .gallery-main::after{content:'';position:absolute;inset:0;background:rgba(42,35,32,0);transition:background .18s}
  .gallery-main:hover{box-shadow:0 16px 34px rgba(43,39,35,.20)}
  .gallery-main:hover::after{background:rgba(42,35,32,.08)}
  /* contain — зургийг тайрахгүй, бүтнээр нь харуулна */
  .gallery-main img{width:100%;height:clamp(280px,46vw,520px);object-fit:contain;display:block;background:#EFE6D4}
  .gallery-dots{display:flex;justify-content:center;gap:10px;margin-top:14px}
  .gdot{width:11px;height:11px;padding:0;border-radius:50%;cursor:pointer;
    border:1.5px solid var(--teal-ink);background:transparent;transition:background .15s, transform .15s}
  .gdot:hover{transform:scale(1.2)}
  .gdot.on{background:var(--teal-ink)}

  /* ---------- Lightbox ---------- */
  body.lb-open{overflow:hidden}
  .lightbox{position:fixed;inset:0;z-index:200;display:flex;align-items:center;justify-content:center;
    padding:clamp(16px,4vw,48px) clamp(72px,10vw,110px);
    background:rgba(20,17,15,.62);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
  .lightbox[hidden]{display:none}
  .lb-stage{display:flex;flex-direction:column;align-items:center;gap:12px;max-width:100%;max-height:100%}
  .lb-stage img{max-width:100%;max-height:80vh;width:auto;height:auto;border-radius:8px;
    box-shadow:0 30px 80px rgba(0,0,0,.55);background:#2A2320}
  .lb-count{font-size:13px;letter-spacing:.14em;color:#EFE3CE;font-variant-numeric:tabular-nums}
  .lb-nav,.lb-close{position:absolute;border:0;cursor:pointer;color:#F5EFE2;background:rgba(255,255,255,.12);
    font-family:var(--body);line-height:1;border-radius:50%;transition:background .15s, transform .15s}
  .lb-nav:hover,.lb-close:hover{background:rgba(255,255,255,.24)}
  /* Сумыг дэлгэцийн ирмэгт байрлуулна — жижиг зурагтай ч шахцалдахгүй. */
  .lb-nav{top:50%;transform:translateY(-50%);width:52px;height:52px;font-size:32px;padding-bottom:5px}
  .lb-nav:hover{transform:translateY(-50%) scale(1.06)}
  .lb-prev{left:clamp(10px,3vw,34px)}
  .lb-next{right:clamp(10px,3vw,34px)}
  .lb-nav[hidden]{display:none}
  .lb-close{top:18px;right:18px;width:42px;height:42px;font-size:17px}
  @media(max-width:640px){
    .lightbox{padding:clamp(16px,4vw,48px) 60px}
    .lb-nav{width:42px;height:42px;font-size:26px}
    .lb-stage img{max-height:70vh}
  }

  /* ---------- Тасалбар захиалах ---------- */
  .bk{display:grid;grid-template-columns:1fr 340px;gap:34px;align-items:start}
  @media(max-width:900px){.bk{grid-template-columns:1fr}}
  .bk-block{border:0;margin-bottom:30px}
  .bk-block > legend{font-size:12px;letter-spacing:.18em;text-transform:uppercase;font-weight:600;
    color:var(--clay-ink);margin-bottom:16px}
  .bk-row2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
  @media(max-width:560px){.bk-row2{grid-template-columns:1fr}}
  .bk-field{display:block;margin-bottom:16px}
  .bk-field > span{display:block;font-size:13px;font-weight:600;color:var(--ink-soft);margin-bottom:6px}
  .bk-field input,.bk-field select,.bk-field textarea{width:100%;font-family:var(--body);font-size:15px;
    color:var(--ink);background:#fff;border:1px solid #E0D3B8;border-radius:6px;padding:12px 14px;
    transition:border-color .15s, box-shadow .15s}
  .bk-field textarea{resize:vertical;line-height:1.55}
  .bk-field input:focus,.bk-field select:focus,.bk-field textarea:focus{outline:none;border-color:var(--teal);
    box-shadow:0 0 0 3px rgba(30,127,114,.14)}
  .bk-field small{display:block;font-size:12.5px;color:var(--ink-soft);margin-top:6px}
  .bk-hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

  .bk-guides{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
  @media(max-width:700px){.bk-guides{grid-template-columns:1fr}}
  .bk-guide{position:relative;display:block;background:var(--cream);border:1.5px solid #EADCC0;
    border-radius:10px;padding:16px 18px;cursor:pointer;transition:border-color .15s, background .15s}
  .bk-guide:hover{border-color:var(--teal-soft)}
  .bk-guide.on{border-color:var(--teal);background:rgba(30,127,114,.09)}
  .bk-guide input{position:absolute;opacity:0;width:0;height:0}
  .bk-guide input:focus-visible + span{outline:3px solid var(--amber);outline-offset:4px;border-radius:2px}
  .bk-guide b{display:block;font-size:15px;font-weight:600;margin-bottom:3px}
  .bk-guide i{display:block;font-style:normal;font-size:12.5px;color:var(--ink-soft);line-height:1.45}
  .bk-guide u{display:inline-block;margin-top:7px;text-decoration:none;font-size:12.5px;font-weight:700;
    color:var(--amber-ink);background:rgba(226,149,44,.16);padding:3px 9px;border-radius:999px}
  .bk-field select option:disabled{color:#B0A48F}
  .bk-hint{font-size:12.5px;color:var(--ink-soft);margin-top:12px}
  .bk-line-extra{padding-top:9px;margin-top:2px;border-top:1px solid rgba(255,255,255,.14);color:#CFE7E2}

  .bk-ticket{display:grid;grid-template-columns:1fr auto auto;align-items:center;gap:18px;
    background:var(--cream);border:1px solid #EADCC0;border-radius:10px;padding:16px 18px;margin-bottom:10px}
  @media(max-width:560px){.bk-ticket{grid-template-columns:1fr auto;row-gap:10px}
    .bk-ticket .bk-step{grid-column:2}}
  .bk-ticket b{display:block;font-size:15.5px;font-weight:600}
  .bk-ticket span{display:block;font-size:13px;color:var(--ink-soft);margin-top:2px}
  .bk-price{font-family:var(--display);font-size:19px;color:var(--teal-ink);white-space:nowrap}
  .bk-step{display:flex;align-items:center;gap:2px;background:#fff;border:1px solid #E0D3B8;border-radius:999px;padding:3px}
  .bk-step button{width:32px;height:32px;border:0;border-radius:50%;background:transparent;cursor:pointer;
    font-size:19px;line-height:1;color:var(--teal-ink);font-family:var(--body);transition:background .15s}
  .bk-step button:hover:not([disabled]){background:rgba(30,127,114,.14)}
  .bk-step button[disabled]{opacity:.3;cursor:default}
  .bk-step output{min-width:26px;text-align:center;font-weight:600;font-variant-numeric:tabular-nums}

  .bk-side{position:sticky;top:78px}
  @media(max-width:900px){.bk-side{position:static}}
  .bk-card{background:var(--teal-night);color:#EAF7F4;border-radius:12px;padding:24px}
  .bk-card h3{font-family:var(--display);font-size:20px;font-weight:400;margin-bottom:16px;
    padding-bottom:14px;border-bottom:1px solid rgba(255,255,255,.18)}
  .bk-line{display:flex;justify-content:space-between;gap:12px;font-size:14px;margin-bottom:9px}
  .bk-line b{font-weight:600;white-space:nowrap}
  .bk-empty{font-size:13.5px;color:#A9CFC8}
  .bk-total{display:flex;justify-content:space-between;align-items:baseline;gap:12px;
    margin:18px 0;padding-top:15px;border-top:1px solid rgba(255,255,255,.18)}
  .bk-total i{font-style:normal;font-size:12px;color:#A9CFC8}
  .bk-total b{font-family:var(--display);font-size:26px;font-weight:400;color:var(--amber-soft)}
  .bk-card .btn{width:100%;justify-content:center}
  .bk-card .btn[disabled]{opacity:.45;cursor:default;transform:none;box-shadow:none}
  .bk-pay{font-size:12.5px;color:#A9CFC8;margin-top:12px;text-align:center}

  .bk-loading{padding:40px;text-align:center;color:var(--ink-soft);font-size:22px;letter-spacing:.3em}
  .bk-offline{background:rgba(226,149,44,.14);border-left:3px solid var(--amber);
    padding:18px 22px;border-radius:0 8px 8px 0;color:var(--ink-soft);font-size:15px}
  .bk-done{max-width:560px;margin:0 auto;text-align:center;background:var(--cream);
    border:1px solid #EADCC0;border-radius:14px;padding:44px 34px}
  .bk-done svg{width:56px;height:56px;color:var(--fossil);margin:0 auto 18px}
  .bk-done h2{font-family:var(--display);font-size:30px;font-weight:400;margin-bottom:10px}
  .bk-done > p{color:var(--ink-soft);margin-bottom:24px}
  .bk-code{background:#fff;border:1px dashed #C9B98F;border-radius:10px;padding:16px;margin-bottom:22px}
  .bk-code span{display:block;font-size:11.5px;letter-spacing:.18em;text-transform:uppercase;
    color:var(--ink-soft);margin-bottom:6px}
  .bk-code b{font-family:var(--display);font-size:30px;font-weight:400;letter-spacing:.06em;color:var(--clay-ink)}
  .bk-recap{display:flex;justify-content:center;gap:38px;margin-bottom:26px;flex-wrap:wrap}
  .bk-recap dt{font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:4px}
  .bk-recap dd{font-size:17px;font-weight:600}

  /* ---------- ADMIN ---------- */
  /* Панелийн үлдсэн загварыг css/admin.css дотор бичсэн. */
  .admin-section{background:linear-gradient(180deg,var(--bone) 0%, #E6EFEC 55%, #DCE9E5 100%)}
  .admin{display:grid;grid-template-columns:220px 1fr;min-height:480px;background:#F8F5EE}
  @media(max-width:820px){.admin{grid-template-columns:1fr}.admin-side{display:none}}
  .admin-side{background:linear-gradient(180deg,var(--teal-deep) 0%,var(--teal-night) 100%);color:#EAF7F4;padding:22px 0}
  .admin-logo{font-family:var(--display);font-size:16px;color:#fff;padding:0 22px 18px;border-bottom:1px solid rgba(255,255,255,.20);margin-bottom:12px}
  .admin-main{padding:28px 30px}
  .btn-sm{padding:10px 18px;font-size:13px;border-radius:4px}
  .stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(168px,1fr));gap:16px;margin-bottom:26px}
  .stat{background:#fff;border:1px solid #E6DDC8;border-radius:8px;padding:18px}
  .stat b{font-family:var(--display);font-size:28px;font-weight:400;color:var(--teal-ink);display:block;line-height:1.1}
  .stat span{font-size:12px;color:var(--ink-soft)}
  .stat .up{font-size:11px;font-weight:700;color:var(--fossil)}
  .pill{font-size:11px;font-weight:700;padding:4px 11px;border-radius:999px}
  .pill-pub{background:rgba(76,117,53,.18);color:var(--fossil)}
  .pill-draft{background:rgba(226,149,44,.20);color:var(--amber-ink)}
  .pill-off{background:rgba(90,79,66,.16);color:var(--ink-soft)}
  .pill-guide{background:rgba(30,127,114,.16);color:var(--teal-ink);white-space:nowrap}
  .admin-note{margin-top:26px;font-size:13.5px;color:var(--ink-soft);background:rgba(30,127,114,.10);border-left:3px solid var(--teal);padding:14px 18px;border-radius:0 6px 6px 0}

  /* ---------- FOOTER ---------- */
  footer{background:linear-gradient(165deg,var(--teal-deep) 0%,#124F47 55%,var(--teal-night) 100%);color:#E4F4F0;padding:34px 0 20px;border-top:3px solid var(--amber)}
  .foot-grid{display:grid;grid-template-columns:minmax(220px,.9fr) minmax(430px,1.65fr) minmax(250px,1fr);gap:42px;align-items:start;margin-bottom:26px}
  .foot-grid h4{font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:#FFD99A;margin-bottom:11px}
  .foot-grid a,.foot-grid span{display:block;font-size:13px;line-height:1.45;padding:2px 0;opacity:.85}
  .foot-grid a:hover{opacity:1;color:#FFD99A}
  .foot-brand{font-family:var(--display);font-size:19px;line-height:1.25;color:#fff;margin-bottom:8px}
  .foot-grid p{font-size:13px;line-height:1.55;opacity:.8;max-width:36ch}
  .foot-nav-links{display:grid;grid-template-columns:repeat(4,minmax(92px,1fr));grid-template-rows:repeat(2,auto);grid-auto-flow:column;column-gap:20px;row-gap:4px}
  .foot-bottom{border-top:1px solid rgba(255,255,255,.16);padding-top:16px;font-size:12px;opacity:.65;display:flex;justify-content:space-between;gap:12px 22px}
  @media(max-width:980px){
    .foot-grid{grid-template-columns:1fr 1.6fr;gap:30px}
    .foot-grid>div:last-child{grid-column:1/-1}
  }
  @media(max-width:680px){
    footer{padding:28px 0 18px}
    .foot-grid{grid-template-columns:1fr;gap:24px;margin-bottom:22px}
    .foot-grid>div:last-child{grid-column:auto}
    .foot-nav-links{grid-template-columns:repeat(2,minmax(0,1fr));grid-template-rows:repeat(4,auto);column-gap:18px}
    .foot-bottom{flex-direction:column;padding-top:14px}
  }

  /* ---------- exhibition overlay ---------- */
  .overlay{position:fixed;inset:0;z-index:150;background:var(--bone);overflow-y:auto;
    opacity:0;visibility:hidden;transform:translateY(14px);
    transition:opacity .26s ease, transform .26s ease, visibility .26s}
  .overlay.open{opacity:1;visibility:visible;transform:translateY(0)}
  .ov-bar{position:sticky;top:0;z-index:5;background:rgba(30,127,114,.96);backdrop-filter:blur(10px);
    border-bottom:2px solid var(--amber)}
  .ov-bar-in{max-width:var(--maxw);margin:0 auto;padding:0 24px;height:64px;display:flex;
    align-items:center;justify-content:space-between;gap:16px}
  .ov-back{display:inline-flex;align-items:center;gap:9px;background:transparent;border:0;cursor:pointer;
    color:#F2FBF9;font-family:var(--body);font-size:14px;font-weight:600;padding:8px 2px}
  .ov-back:hover{color:#FFF8EC}
  .ov-back svg{width:17px;height:17px}
  .ov-title{font-family:var(--display);font-size:18px;color:#fff;text-align:right;line-height:1.2}
  .ov-body{max-width:var(--maxw);margin:0 auto;padding:44px 24px 90px}

  .ex-all{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
  @media(max-width:900px){.ex-all{grid-template-columns:1fr}}

  /* Зураг тайрагдахгүйн тулд өндөрийг нэмж, contain болгов. */
  .ex-hero{border-radius:12px;overflow:hidden;margin-bottom:34px;position:relative;
    min-height:clamp(300px,42vw,520px);display:grid;place-items:center}
  .ex-hero svg{width:130px;height:130px;opacity:.92}
  .ex-hero .ex-tag{top:18px;left:18px}
  .ex-hero.has-photo img{object-fit:contain}
  /* Хажуугийн "Мэдээлэл" самбарыг авсан тул нэг баганаар, уншихад
     тохиромжтой өргөнтэй болов. */
  .ex-detail{max-width:820px}
  .ex-detail h1{font-family:var(--display);font-size:clamp(30px,4.4vw,44px);font-weight:400;
    line-height:1.1;margin:6px 0 16px}
  .ex-detail .lead{font-size:17px;color:var(--ink-soft);margin-bottom:22px}
  .ex-detail p{margin-bottom:16px}

  /* ---------- Аудио тайлбар ---------- */
  /* Хуудас нээгдмэгц шууд харагдана. */
  .ex-audio{margin:30px 0 10px;max-width:560px;background:var(--cream);
    border:1px solid #EADCC0;border-left:4px solid var(--teal);border-radius:10px;padding:15px 18px}
  .ex-audio-head{display:flex;align-items:center;gap:9px;margin-bottom:11px;
    font-size:13.5px;font-weight:600;color:var(--teal-ink)}
  .ex-audio-head svg{width:19px;height:19px;flex:none}
  .ex-audio audio{width:100%;height:38px;display:block}
  .ex-more{margin-top:56px;padding-top:34px;border-top:1px solid #E7DCC4}
  .ex-more h3{font-family:var(--display);font-size:24px;font-weight:400;margin-bottom:22px}

  /* ---------- Санхүү ---------- */
  .fin-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;max-width:900px}
  @media(max-width:760px){.fin-grid{grid-template-columns:1fr}}
  .fin-card{display:flex;gap:16px;align-items:flex-start;padding:22px 24px;border-radius:12px;
    background:var(--cream);border:1px solid #EADCC0;border-left:4px solid var(--teal);
    transition:border-color .15s, box-shadow .15s, transform .15s}
  .fin-card:hover{box-shadow:0 14px 30px rgba(43,39,35,.14);transform:translateY(-2px)}
  .fin-icon{flex:none;width:44px;height:44px;border-radius:9px;display:grid;place-items:center;
    background:rgba(30,127,114,.12);color:var(--teal-ink)}
  .fin-icon svg{width:23px;height:23px}
  .fin-body{display:flex;flex-direction:column;gap:6px;min-width:0}
  .fin-body b{font-family:var(--display);font-size:21px;font-weight:400;line-height:1.2}
  .fin-body > span{font-size:14px;color:var(--ink-soft);line-height:1.55}
  .fin-url{font-size:12px;font-weight:600;letter-spacing:.02em;color:var(--teal-ink);
    margin-top:2px;word-break:break-all}
  .fin-url::after{content:' ↗'}

  /* ---------- Статистик ---------- */
  .stat-note{max-width:760px;font-size:14px;color:var(--ink-soft);line-height:1.6;
    border-left:3px solid var(--amber);padding-left:14px;margin-bottom:26px}
  .stat-years{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px}
  .stat-year{font-family:var(--body);font-size:14px;font-weight:600;cursor:pointer;
    padding:9px 18px;border-radius:999px;border:1px solid #E1D3B8;background:#fff;color:var(--ink-soft);
    transition:background .15s, color .15s, border-color .15s}
  .stat-year:hover{border-color:var(--teal);color:var(--teal-ink)}
  .stat-year.on{background:var(--teal);border-color:var(--teal);color:#fff}
  /* Оны гол үзүүлэлтүүд */
  .stat-kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:34px}
  @media(max-width:860px){.stat-kpis{grid-template-columns:repeat(2,1fr)}}
  .stat-kpi{background:var(--cream);border:1px solid #EADCC0;border-top:3px solid var(--teal);
    border-radius:10px;padding:20px 22px}
  .stat-kpi b{display:block;font-family:var(--display);font-size:clamp(26px,3.6vw,36px);
    font-weight:400;line-height:1.1;color:var(--teal-ink)}
  .stat-kpi span{display:block;font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;
    color:var(--ink-soft);margin-top:6px}
  .stat-kpi em{display:block;font-style:normal;font-size:12.5px;font-weight:600;margin-top:6px}
  .stat-kpi em.up{color:#2F7D4F}
  .stat-kpi em.down{color:#B4532F}
  .stat-charts{display:grid;grid-template-columns:1fr 1fr;gap:22px}
  @media(max-width:900px){.stat-charts{grid-template-columns:1fr}}
  .stat-chart{background:#fff;border:1px solid #EADCC0;border-radius:12px;padding:20px 22px 16px}
  .stat-chart h3{font-family:var(--display);font-size:19px;font-weight:400;margin-bottom:16px}
  .stat-chart svg{width:100%;height:auto;display:block;overflow:visible}
  .bar-rect{fill:var(--teal);opacity:.72;transition:opacity .15s}
  .bar-rect.hi{fill:var(--amber);opacity:1}
  .bar-g:hover .bar-rect{opacity:1}
  .bar-val{font-family:var(--body);font-size:8.4px;font-weight:600;fill:var(--ink-soft);text-anchor:middle}
  .bar-lab{font-family:var(--body);font-size:8.4px;fill:#8A8375;text-anchor:middle}
  .bar-base{stroke:#E4D8C0;stroke-width:1}

  /* ---------- Танилцуулга бичлэг (Бидний тухай) ---------- */
  .about-video{margin-top:64px}
  .about-video h2{font-family:var(--display);font-size:clamp(24px,3vw,32px);font-weight:400;
    margin-bottom:20px}
  .about-video video{width:100%;max-width:960px;display:block;border-radius:14px;
    background:#000;box-shadow:0 18px 44px rgba(43,39,35,.22)}

  /* ---------- Бичиг баримт татах ---------- */
  /* Жагсаалтыг нээж хаадаг товч */
  .docs-toggle{display:inline-flex;align-items:center;gap:9px;cursor:pointer;
    font-family:var(--body);font-size:14px;font-weight:600;color:var(--teal-ink);
    background:var(--cream);border:1.5px solid var(--teal);border-radius:8px;
    padding:12px 20px;margin-bottom:26px;
    transition:background .15s, color .15s, box-shadow .15s}
  .docs-toggle:hover{background:var(--teal);color:#fff;box-shadow:0 8px 20px rgba(30,127,114,.25)}
  .docs-toggle svg{width:18px;height:18px}
  .docs-toggle .dt-chev{width:14px;height:14px;transition:transform .2s}
  .docs-toggle.open .dt-chev{transform:rotate(180deg)}
  .doc-block{margin-bottom:44px}
  .documents-section{min-height:420px}
  .doc-empty{color:var(--ink-soft);text-align:center;padding:48px 20px;background:#fff;border:1px solid #EADCC0;border-radius:12px}
  .doc-head h2{font-family:var(--display);font-size:clamp(22px,3vw,28px);font-weight:400;margin-bottom:6px}
  .doc-head p{font-size:14.5px;color:var(--ink-soft);margin-bottom:20px;max-width:64ch}
  .doc-list{display:grid;gap:12px;max-width:900px}
  .doc-item{display:flex;align-items:center;gap:16px;padding:16px 20px;border-radius:10px;
    background:var(--cream);border:1px solid #EADCC0;transition:box-shadow .15s, transform .15s, border-color .15s}
  .doc-item:hover{border-color:var(--teal);box-shadow:0 12px 26px rgba(43,39,35,.12);transform:translateY(-2px)}
  .doc-kind{flex:none;min-width:52px;text-align:center;font-size:11px;font-weight:700;letter-spacing:.06em;
    padding:7px 8px;border-radius:5px;background:rgba(30,127,114,.12);color:var(--teal-ink)}
  .doc-body{display:flex;flex-direction:column;gap:3px;min-width:0;flex:1}
  .doc-body b{font-size:15.5px;font-weight:600}
  .doc-body span{font-size:13px;color:var(--ink-soft);line-height:1.5}
  .doc-get{flex:none;display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;
    color:var(--teal-ink);white-space:nowrap}
  .doc-get svg{width:15px;height:15px}
  @media(max-width:560px){.doc-item{flex-wrap:wrap}.doc-get{margin-left:auto}}

  /* ---------- Номын сан ---------- */
  .library-section{min-height:420px}
  .book-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px}
  .book-card{display:flex;flex-direction:column;overflow:hidden;background:#fff;border:1px solid #EADCC0;
    border-radius:12px;box-shadow:0 8px 24px rgba(43,39,35,.08);transition:transform .18s,box-shadow .18s}
  .book-card:hover{transform:translateY(-4px);box-shadow:0 16px 34px rgba(43,39,35,.14)}
  .book-cover{aspect-ratio:3/4;background:linear-gradient(145deg,#E9DFC9,#C8B58E);overflow:hidden;display:grid;place-items:center}
  .book-cover img{width:100%;height:100%;object-fit:cover;display:block}
  .book-placeholder{font-family:var(--display);font-size:24px;color:var(--ink-soft)}
  .book-body{display:flex;flex:1;flex-direction:column;align-items:flex-start;padding:18px;gap:16px}
  .book-body h2{font-family:var(--display);font-size:19px;font-weight:500;line-height:1.35;flex:1}
  .book-empty{grid-column:1/-1;color:var(--ink-soft);text-align:center;padding:48px 20px;background:#fff;border:1px solid #EADCC0;border-radius:12px}
  @media(max-width:980px){.book-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
  @media(max-width:700px){.book-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}}
  @media(max-width:420px){.book-grid{grid-template-columns:1fr}.book-card{max-width:300px;width:100%;margin:auto}}

  /* ---------- Боловсролын хөтөлбөр ---------- */
  .education-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
  .education-card{overflow:hidden;background:#fff;border:1px solid #EADCC0;border-radius:14px;
    box-shadow:0 10px 28px rgba(43,39,35,.09)}
  .education-gallery{height:280px;background:#DDD1B8;display:grid;place-items:center}
  .education-gallery.gallery{display:block;height:auto;margin:0;background:#fff;overflow:visible}
  .education-gallery .gallery-main{border-radius:0}
  .education-gallery .gallery-main img{width:100%;height:280px;object-fit:cover;background:#DDD1B8}
  .education-gallery .gallery-dots{margin:0;padding:12px 10px;background:#fff}
  .education-placeholder{width:100%;display:grid;place-items:center;font-family:var(--display);font-size:24px;color:var(--ink-soft)}
  .education-body{padding:22px 24px 25px}
  .education-body h2{font-family:var(--display);font-size:23px;font-weight:500;line-height:1.3;margin-bottom:10px}
  .education-body p{color:var(--ink-soft);font-size:14.5px;line-height:1.7;white-space:pre-line}
  .education-empty{grid-column:1/-1;text-align:center;color:var(--ink-soft);padding:48px 20px;background:#fff;border:1px solid #EADCC0;border-radius:12px}
  @media(max-width:720px){.education-grid{grid-template-columns:1fr}.education-gallery,.education-gallery .gallery-main img{height:240px}.education-gallery.gallery{height:auto}}

  /* ---------- 360° виртуал аялал ---------- */
  .virtual-tour-section{padding-top:38px}
  .vt-viewer{position:relative;width:100%;height:min(68vh,700px);min-height:460px;overflow:hidden;
    border-radius:16px;background:#171B1A;box-shadow:0 22px 54px rgba(20,17,15,.24)}
  #vt-canvas{display:block;width:100%;height:100%;cursor:grab;touch-action:none;outline:none}
  #vt-canvas.dragging{cursor:grabbing}
  .vt-hotspots{position:absolute;inset:0;z-index:2;pointer-events:none;overflow:hidden}
  .vt-hotspot{position:absolute;transform:translate(-50%,-50%);pointer-events:auto;border:0;cursor:pointer;
    font-family:var(--body);filter:drop-shadow(0 5px 12px rgba(0,0,0,.35));transition:transform .15s,opacity .15s}
  .vt-hotspot[hidden]{display:none}
  .vt-exhibit{display:flex;align-items:center;gap:8px;max-width:230px;padding:8px 12px 8px 8px;border-radius:999px;
    background:rgba(255,255,255,.94);color:var(--teal-ink);text-align:left;backdrop-filter:blur(8px)}
  .vt-exhibit i{flex:none;display:grid;place-items:center;width:26px;height:26px;border-radius:50%;background:var(--amber);
    color:#fff;font-family:Georgia,serif;font-style:italic;font-weight:700}
  .vt-exhibit span{font-size:12.5px;font-weight:700;line-height:1.25}
  .vt-exhibit:hover{transform:translate(-50%,-50%) scale(1.05)}
  .vt-move{display:flex;flex-direction:column;align-items:center;gap:5px;background:none;color:#fff;white-space:nowrap}
  .vt-move i{display:grid;place-items:center;width:54px;height:54px;border:3px solid #fff;border-radius:50%;
    background:rgba(30,127,114,.82);font-size:29px;font-style:normal;box-shadow:0 0 0 5px rgba(255,255,255,.2)}
  .vt-move span{padding:6px 10px;border-radius:999px;background:rgba(12,17,16,.74);font-size:12px;font-weight:700}
  .vt-move:hover{transform:translate(-50%,-50%) scale(1.08)}
  .vt-loading{position:absolute;inset:0;z-index:3;display:flex;align-items:center;justify-content:center;gap:12px;
    color:#fff;background:#173C37;font-weight:600}
  .vt-loading[hidden]{display:none}
  .vt-help{position:absolute;left:50%;bottom:18px;transform:translateX(-50%);z-index:2;
    max-width:calc(100% - 120px);padding:9px 15px;border-radius:999px;background:rgba(12,17,16,.68);
    color:#fff;font-size:12.5px;text-align:center;white-space:nowrap;backdrop-filter:blur(8px);pointer-events:none}
  .vt-fullscreen{position:absolute;right:16px;top:16px;z-index:4;width:44px;height:44px;border:1px solid rgba(255,255,255,.35);
    border-radius:50%;background:rgba(12,17,16,.62);color:#fff;font-size:24px;cursor:pointer;backdrop-filter:blur(8px)}
  .vt-fullscreen:hover{background:var(--teal)}
  .vt-rooms{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:10px;margin-top:18px}
  .vt-room{display:flex;align-items:center;justify-content:center;gap:8px;padding:11px 8px;border:1px solid #DED1B8;
    border-radius:9px;background:#fff;color:var(--ink-soft);font-family:var(--body);cursor:pointer;transition:.16s}
  .vt-room span{display:grid;place-items:center;width:25px;height:25px;border-radius:50%;background:#EEE6D7;font-weight:700;font-size:12px}
  .vt-room b{font-size:12.5px;white-space:nowrap}
  .vt-room:hover,.vt-room.on{border-color:var(--teal);color:var(--teal-ink);box-shadow:0 7px 18px rgba(30,127,114,.13)}
  .vt-room.on span{background:var(--teal);color:#fff}
  .vt-viewer:fullscreen{width:100vw;height:100vh;min-height:0;border-radius:0}
  @media(max-width:900px){.vt-rooms{grid-template-columns:repeat(4,1fr)}.vt-viewer{height:62vh;min-height:400px}}
  @media(max-width:560px){.vt-viewer{height:58vh;min-height:360px;border-radius:10px}.vt-help{white-space:normal;bottom:12px}.vt-rooms{grid-template-columns:repeat(2,1fr)}}
  @media(max-width:560px){.vt-exhibit{max-width:170px}.vt-exhibit span{font-size:11px}.vt-move i{width:46px;height:46px}}

  /* ---------- Хэрэгцээт холбоос ---------- */
  .links-band{background:#fff;border-top:1px solid #EADCC0;padding:52px 0 56px}
  .links-band h2{font-family:var(--display);font-size:clamp(22px,3vw,30px);font-weight:400;
    text-align:center;letter-spacing:.02em;color:var(--ink-soft);margin-bottom:34px}
  /* Дөрвөлжин лого + хажууд нь байгууллагын нэр. */
  .links-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
  @media(max-width:900px){.links-grid{grid-template-columns:repeat(2,1fr)}}
  @media(max-width:520px){.links-grid{grid-template-columns:1fr}}
  .link-card{display:flex;align-items:center;gap:13px;padding:12px 14px;border-radius:10px;
    border:1px solid #EDE3CE;background:#FDFBF6;
    transition:border-color .15s, box-shadow .15s, transform .15s}
  .link-card:hover{border-color:var(--teal-soft);box-shadow:0 10px 24px rgba(43,39,35,.10);transform:translateY(-2px)}
  .link-logo{flex:none;width:58px;height:58px;border-radius:7px;overflow:hidden;
    display:grid;place-items:center;background:#fff;border:1px solid #EDE3CE}
  /* Зураг 600×215 — зүүн талын тамгаар нь дүүргэж, доторх бичгийг таслана */
  .link-logo img{width:100%;height:100%;object-fit:cover;object-position:left center}
  .link-initials{font-family:var(--display);font-size:19px;letter-spacing:.02em;color:var(--teal-ink)}
  .link-name{font-size:12.5px;font-weight:600;line-height:1.35;color:var(--teal-ink)}
  /* Админ панел дээр хэрэггүй */
  body.admin-mode > .links-band{display:none}

  /* toast for parts of the prototype that have no page yet */
  .toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,20px);z-index:200;
    background:var(--teal-night);color:#EAF7F4;font-size:14px;font-weight:500;
    padding:13px 22px;border-radius:8px;border-left:4px solid var(--amber);
    box-shadow:0 12px 34px rgba(14,61,55,.38);opacity:0;pointer-events:none;
    transition:opacity .22s ease, transform .22s ease;max-width:min(90vw,420px)}
  .toast.show{opacity:1;transform:translate(-50%,0)}

  @media (prefers-reduced-motion: reduce){
    *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important}
    html{scroll-behavior:auto}
  }