/*
Theme Name: SachTre Genesis
Theme URI: https://sachtre.com/
Description: Genesis Child Theme chuyên nghiệp cho SachTre.com: thư viện số, sách, tài liệu, đề thi, học thuật và trình đọc online tích hợp Sach Core.
Author: SachTre.com
Version: 1.1.7
Template: genesis
Text Domain: sachtre-genesis
*/

:root{
  --st-blue:#2497e6;
  --st-blue-dark:#0878c9;
  --st-blue-deep:#075f9f;
  --st-blue-soft:#eaf6ff;
  --st-sky:#f5fbff;
  --st-ink:#183247;
  --st-muted:#6f8392;
  --st-line:#d9e8f2;
  --st-surface:#fff;
  --st-bg:#f6fbfe;
  --st-success:#25855a;
  --st-warn:#a56b08;
  --st-radius:18px;
  --st-shadow:0 18px 45px rgba(33,112,164,.10);
  --st-reader-size:19px;
  --st-reader-width:760px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--st-bg);color:var(--st-ink);font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;font-size:16px;line-height:1.65}
a{color:var(--st-blue-deep);text-decoration:none}a:hover{color:var(--st-blue-dark)}
img{max-width:100%;height:auto}.screen-reader-text{position:absolute!important;clip:rect(1px,1px,1px,1px);width:1px;height:1px;overflow:hidden}
.site-container{background:transparent}.site-inner{max-width:1240px;margin:auto;padding:30px 22px 64px}.content{width:100%}.sidebar{display:none}.entry{background:#fff;border:1px solid var(--st-line);border-radius:var(--st-radius);padding:30px;box-shadow:0 8px 30px rgba(45,108,150,.05);margin-bottom:24px}.entry-title{margin-top:0;color:#15344a;letter-spacing:-.025em;font-size:clamp(26px,3vw,32px);line-height:1.18}.entry-content{color:#304b5e}.entry-content a{text-decoration:underline;text-underline-offset:3px}.entry-meta{font-size:13px;color:var(--st-muted)}

/* Header */
.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.97);backdrop-filter:blur(14px);border-bottom:1px solid var(--st-line);box-shadow:0 8px 28px rgba(28,101,151,.06)}
/* Header/menu optimized 1.0.1 */
.st-topbar{background:linear-gradient(90deg,var(--st-blue-deep),var(--st-blue));color:#fff;font-size:12px}.st-topbar-inner{max-width:1240px;margin:auto;padding:6px 22px;display:flex;justify-content:space-between;gap:18px}.st-topbar strong{font-weight:850}.st-topbar span{opacity:.92}
.st-header-main{position:sticky;top:0;z-index:900;background:rgba(255,255,255,.96);border-bottom:1px solid rgba(203,227,241,.9);box-shadow:0 5px 18px rgba(26,100,148,.045);backdrop-filter:saturate(170%) blur(14px);-webkit-backdrop-filter:saturate(170%) blur(14px)}
.st-header{max-width:1240px;margin:auto;min-height:72px;padding:10px 22px;display:grid;grid-template-columns:auto minmax(0,1fr) minmax(230px,330px);gap:18px;align-items:center}
.st-brand{display:flex;align-items:center;gap:9px;color:#0b6cae;font-weight:900;font-size:23px;letter-spacing:-.03em;white-space:nowrap}.st-brand-mark{width:40px;height:40px;border-radius:12px;background:linear-gradient(145deg,#61c5ff,var(--st-blue-dark));display:grid;place-items:center;color:#fff;box-shadow:0 8px 18px rgba(36,151,230,.2)}.st-brand-mark svg{width:25px;height:25px}.st-brand-copy small{display:block;font-size:8.5px;letter-spacing:.14em;color:#7892a3;margin-top:-4px;font-weight:800;text-transform:uppercase}
.st-nav{min-width:0}.st-nav ul{display:flex;gap:2px;align-items:center;justify-content:center;list-style:none;margin:0;padding:0;white-space:nowrap}.st-nav li{position:relative}.st-nav a{position:relative;display:flex;align-items:center;min-height:40px;padding:9px 10px;border-radius:10px;color:#294b60;font-size:13.5px;font-weight:800;transition:background .18s ease,color .18s ease,transform .18s ease}.st-nav a:hover{background:var(--st-blue-soft);color:var(--st-blue-deep)}.st-nav .is-current>a,.st-nav a[aria-current="page"]{background:#e7f6ff;color:#076da9}.st-nav .is-current>a:after,.st-nav a[aria-current="page"]:after{content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;background:var(--st-blue)}
.st-nav .sub-menu{display:none;position:absolute;top:calc(100% + 7px);left:0;min-width:230px;padding:8px;background:#fff;border:1px solid var(--st-line);border-radius:14px;box-shadow:var(--st-shadow)}.st-nav li:hover>.sub-menu,.st-nav li:focus-within>.sub-menu{display:block}.st-nav .sub-menu a{padding:9px 11px;font-weight:700}
.st-mobile-toggle{display:none;width:42px;height:42px;padding:0;border:1px solid #cfe3f0;background:#f8fcff;color:var(--st-blue-deep);border-radius:11px;align-items:center;justify-content:center;flex-direction:column;gap:4px;cursor:pointer}.st-mobile-toggle span{display:block;width:19px;height:2px;border-radius:2px;background:currentColor;transition:transform .2s ease,opacity .2s ease}.st-mobile-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}.st-mobile-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}.st-mobile-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.st-header-search{display:flex;min-width:0;overflow:hidden;background:#f7fbfe;border:1px solid #cfe5f3;border-radius:999px;transition:border-color .18s ease,box-shadow .18s ease,background .18s ease}.st-header-search:focus-within{background:#fff;border-color:#8bcdf4;box-shadow:0 0 0 3px rgba(55,166,232,.12)}.st-header-search input{width:100%;min-width:0;border:0;background:transparent;padding:10px 13px;outline:0;color:var(--st-ink);font-size:13px}.st-header-search button{border:0;background:var(--st-blue);color:#fff;padding:9px 15px;font-weight:850;cursor:pointer}.st-header-search button:hover{background:var(--st-blue-dark)}

/* Home */
.st-home{display:block}.st-hero{position:relative;overflow:hidden;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(280px,.65fr);gap:28px;align-items:center;background:linear-gradient(135deg,#e6f6ff 0%,#fafdff 54%,#d9f1ff 100%);border:1px solid #cfeafa;border-radius:28px;padding:38px;margin-bottom:22px}.st-hero:after{content:"";position:absolute;right:-110px;bottom:-170px;width:390px;height:390px;border-radius:50%;border:1px solid rgba(36,151,230,.15);box-shadow:0 0 0 54px rgba(36,151,230,.05),0 0 0 108px rgba(36,151,230,.025)}.st-hero-copy,.st-hero-side{position:relative;z-index:1}.st-eyebrow{font-size:11px;font-weight:900;letter-spacing:.16em;text-transform:uppercase;color:var(--st-blue-dark)}.st-hero h1{margin:10px 0 15px;max-width:760px;font-size:clamp(28px,3.4vw,34px);line-height:1.02;letter-spacing:-.055em;color:#123b55}.st-hero p{margin:0 0 22px;max-width:740px;font-size:18px;color:#587588}.st-hero-search{display:flex;max-width:760px;background:#fff;border:1px solid #cbe4f3;border-radius:15px;padding:6px;box-shadow:0 14px 34px rgba(30,116,175,.10)}.st-hero-search input{flex:1;min-width:0;border:0;padding:13px 14px;font-size:16px;outline:0}.st-hero-search button{border:0;border-radius:11px;background:var(--st-blue);color:#fff;padding:12px 20px;font-weight:900}.st-hero-side{background:rgba(255,255,255,.82);border:1px solid #cae6f5;border-radius:20px;padding:24px;box-shadow:0 14px 35px rgba(35,119,175,.09)}.st-hero-side b{display:block;font-size:42px;line-height:1;color:var(--st-blue-deep)}.st-hero-side span{display:block;margin-top:7px;font-weight:850}.st-hero-side small{display:block;margin-top:10px;color:var(--st-muted)}
.st-section{margin:32px 0}.st-section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:15px}.st-section-head h2{margin:3px 0 0;font-size:23px;letter-spacing:-.03em;color:#183c54}.st-section-head a{font-weight:850;font-size:13px}.st-pill-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:11px}.st-pill{background:#fff;border:1px solid var(--st-line);border-radius:14px;padding:16px;min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:10px;transition:.18s}.st-pill:hover{transform:translateY(-2px);border-color:#9fd4f4;box-shadow:0 10px 24px rgba(42,123,177,.09)}.st-pill strong{font-size:14px}.st-pill span{font-size:12px;color:#8196a4}

/* Book cards */
.st-card-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}.st-card{background:#fff;border:1px solid var(--st-line);border-radius:16px;overflow:hidden;transition:.2s;min-width:0}.st-card:hover{transform:translateY(-4px);box-shadow:var(--st-shadow);border-color:#acd8f3}.st-card>a{display:block;color:inherit;height:100%}.st-cover{aspect-ratio:3/4.35;background:linear-gradient(145deg,#dff3ff,#bfe6ff);display:grid;place-items:center;overflow:hidden;position:relative}.st-cover img{width:100%;height:100%;object-fit:cover}.st-cover-placeholder{width:58%;height:72%;border-radius:8px;background:linear-gradient(150deg,#4ab4f3,var(--st-blue-dark));box-shadow:8px 10px 20px rgba(14,101,160,.18);display:grid;place-items:center;color:#fff;font-weight:900;font-size:13px;text-align:center;padding:15px}.st-card-body{padding:15px}.st-card-type{display:inline-block;color:var(--st-blue-dark);font-size:10px;font-weight:900;letter-spacing:.10em;text-transform:uppercase}.st-card h3{margin:6px 0 6px;color:#183c54;font-size:16px;line-height:1.36}.st-card-author{font-size:13px;color:#627e90;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.st-card-meta{margin-top:8px;display:flex;gap:7px;flex-wrap:wrap}.st-badge{font-size:11px;padding:3px 7px;border-radius:999px;background:#eef8fe;color:#33789f;border:1px solid #d9eef9}
.st-empty{padding:34px;text-align:center;background:#fff;border:1px dashed #bddbea;border-radius:16px;color:#6d8797}

/* Library/filter */
.st-library-layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:24px}.st-filters{position:sticky;top:112px;align-self:start;background:#fff;border:1px solid var(--st-line);border-radius:16px;padding:18px}.st-filters h2{font-size:18px;margin:0 0 13px}.st-filter-group{margin:0 0 13px}.st-filter-group label{display:block;font-size:11px;font-weight:850;color:#617d8f;margin:0 0 5px;text-transform:uppercase;letter-spacing:.07em}.st-filter-group input,.st-filter-group select{width:100%;border:1px solid #cfe1ed;border-radius:9px;padding:9px 10px;background:#fff;color:#24475d}.st-filter-actions{display:flex;gap:8px}.st-button{display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--st-blue);background:var(--st-blue);color:#fff!important;border-radius:10px;padding:10px 15px;font-weight:850;cursor:pointer}.st-button:hover{background:var(--st-blue-dark)}.st-button.secondary{background:#fff;color:var(--st-blue-deep)!important;border-color:#c6dfef}.st-results-title{display:flex;justify-content:space-between;gap:14px;align-items:center;margin-bottom:15px}.st-results-title h1{font-size:30px;margin:0;letter-spacing:-.035em}.st-results-title small{color:var(--st-muted)}.st-library-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}

/* Single work */
.st-work{max-width:1120px;margin:auto}.st-work-hero{display:grid;grid-template-columns:260px minmax(0,1fr);gap:34px;background:#fff;border:1px solid var(--st-line);border-radius:24px;padding:30px;box-shadow:0 10px 34px rgba(34,108,156,.07)}.st-work-cover{border-radius:13px;overflow:hidden;background:#dff3ff;box-shadow:0 16px 32px rgba(24,88,130,.15);aspect-ratio:3/4.35}.st-work-cover img{width:100%;height:100%;object-fit:cover}.st-work-cover .st-cover-placeholder{width:100%;height:100%;border-radius:0}.st-work-kicker{font-size:11px;font-weight:900;letter-spacing:.13em;text-transform:uppercase;color:var(--st-blue-dark)}.st-work-title{font-size:clamp(26px,3vw,32px);line-height:1.08;letter-spacing:-.045em;margin:7px 0 8px;color:#143d56}.st-original-title{font-size:15px;color:#7790a0;margin-bottom:12px}.st-author-line{font-size:18px;font-weight:800;color:#365b72}.st-work-summary{margin:18px 0;color:#526f81;font-size:16px}.st-work-actions{display:flex;gap:9px;flex-wrap:wrap;margin:20px 0}.st-meta-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin-top:18px}.st-meta-item{display:flex;justify-content:space-between;gap:16px;background:#f6fbfe;border:1px solid #e0edf5;border-radius:10px;padding:10px 12px;font-size:13px}.st-meta-item strong{color:#537184}.st-meta-item span{text-align:right}.st-rights{margin-top:14px;padding:10px 12px;border-radius:10px;background:#f2fbf6;border:1px solid #d5efdf;color:#38694f;font-size:13px}.st-rights.warn{background:#fff9ec;border-color:#f1dfb9;color:#7f621f}
.st-work-section{margin:24px 0;background:#fff;border:1px solid var(--st-line);border-radius:18px;padding:24px}.st-work-section h2{margin:0 0 15px;font-size:23px;color:#173e57;letter-spacing:-.025em}.st-term-row{display:flex;gap:8px;flex-wrap:wrap}.st-term{padding:5px 9px;border-radius:999px;background:var(--st-blue-soft);border:1px solid #d0eafd;color:#276f9c;font-size:12px;font-weight:750}.st-edition-table{width:100%;border-collapse:collapse;font-size:13px}.st-edition-table th,.st-edition-table td{text-align:left;padding:10px;border-bottom:1px solid #e3eef5}.st-edition-table th{color:#577487;font-size:11px;text-transform:uppercase;letter-spacing:.05em}.st-chapter-list{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}.st-chapter-link{display:flex;justify-content:space-between;gap:12px;border:1px solid #dcebf4;border-radius:10px;padding:10px 12px;background:#fbfdff;color:#244d65}.st-chapter-link:hover{border-color:#9fd3f2;background:#f0f9ff}.st-source-list{margin:0;padding-left:20px}.st-source-list li{margin:7px 0;overflow-wrap:anywhere}

/* Reader */
body.st-reader-active{background:#f4f8fb}.st-reader-shell{max-width:1040px;margin:0 auto}.st-reader-toolbar{position:sticky;top:101px;z-index:50;display:flex;align-items:center;justify-content:space-between;gap:12px;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border:1px solid var(--st-line);border-radius:14px;padding:9px 12px;box-shadow:0 8px 24px rgba(33,107,156,.07);margin-bottom:18px}.st-reader-tools{display:flex;gap:6px;align-items:center;flex-wrap:wrap}.st-reader-tools button,.st-reader-tools a{border:1px solid #cfe2ee;background:#fff;color:#27536d;border-radius:8px;padding:7px 9px;font-size:12px;font-weight:800;cursor:pointer}.st-reader-tools button:hover,.st-reader-tools a:hover{background:#eef8fe}.st-reader-paper{max-width:var(--st-reader-width);margin:0 auto;background:#fff;border:1px solid #dfeaf1;border-radius:12px;box-shadow:0 12px 38px rgba(31,88,126,.08);padding:clamp(28px,6vw,72px);font-family:Georgia,"Times New Roman",serif;font-size:var(--st-reader-size);line-height:1.9;color:#243745}.st-reader-paper h1{font-family:Inter,system-ui,sans-serif;line-height:1.2;font-size:clamp(27px,4vw,40px);letter-spacing:-.035em;color:#173e57}.st-reader-paper h2,.st-reader-paper h3{line-height:1.4}.st-reader-paper p{margin:0 0 1.35em}.st-reader-original{display:none}.st-reader-paper[data-language="original"] .st-reader-vi{display:none}.st-reader-paper[data-language="original"] .st-reader-original{display:block}.st-reader-paper[data-language="parallel"] .st-reader-original{display:block;border-top:1px dashed #cadde9;margin-top:28px;padding-top:28px}.st-reader-paper[data-language="parallel"] .st-reader-original:before{content:"Nguyên bản";display:block;font-family:Inter,system-ui,sans-serif;font-size:11px;text-transform:uppercase;letter-spacing:.12em;color:#7891a1;margin-bottom:12px}.st-reader-nav{max-width:var(--st-reader-width);margin:16px auto;display:flex;justify-content:space-between;gap:12px}.st-reader-nav a{flex:1;border:1px solid var(--st-line);background:#fff;border-radius:11px;padding:11px 13px;font-weight:800}.st-reader-nav a:last-child{text-align:right}.st-reader-paper.theme-sepia{background:#fff9ea;color:#493d31;border-color:#ecdfc2}.st-reader-paper.theme-dark{background:#17232c;color:#d8e4ec;border-color:#223846}.st-reader-paper.theme-dark h1,.st-reader-paper.theme-dark h2,.st-reader-paper.theme-dark h3{color:#eef7fc}.st-reader-paper.theme-dark a{color:#8fd0f7}

/* Archive/search */
.archive-title,.search-title{font-size:30px;letter-spacing:-.035em}.pagination ul{display:flex;gap:6px;list-style:none;padding:0}.pagination a,.pagination .active a{display:block;padding:7px 11px;background:#fff;border:1px solid var(--st-line);border-radius:8px}.pagination .active a{background:var(--st-blue);color:#fff}

/* Footer */
.site-footer{background:#eaf6fd;border-top:1px solid #cee6f5}.st-footer{max-width:1240px;margin:auto;padding:38px 22px 22px}.st-footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:36px}.st-footer-brand .st-brand{margin-bottom:12px}.st-footer-brand p{max-width:520px;color:#5e7889;font-size:14px}.st-footer h3{font-size:13px;margin:0 0 11px;color:#234e67;text-transform:uppercase;letter-spacing:.06em}.st-footer a{display:block;padding:5px 0;color:#527488;font-size:13px}.st-footer-bottom{display:flex;justify-content:space-between;gap:15px;margin-top:28px;padding-top:18px;border-top:1px solid #cfe4f2;color:#6b8291;font-size:12px}

@media(max-width:1100px){.st-header{grid-template-columns:auto minmax(0,1fr) 42px}.st-header-search{grid-column:1/-1;grid-row:2}.st-mobile-toggle{display:flex}.st-nav{display:none;grid-column:1/-1;grid-row:3;border-top:1px solid #e2eef5;padding-top:8px}.st-nav.is-open{display:block}.st-nav ul{justify-content:flex-start;flex-wrap:wrap}.st-nav a{padding:8px 11px}.st-card-grid{grid-template-columns:repeat(4,1fr)}.st-pill-grid{grid-template-columns:repeat(3,1fr)}.st-library-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:820px){.site-inner{padding:20px 14px 48px}.st-topbar-inner span:last-child{display:none}.st-header{grid-template-columns:auto minmax(0,1fr) 42px;padding:9px 14px;gap:10px}.st-brand{font-size:21px}.st-brand-mark{width:38px;height:38px}.st-header-search{grid-column:1/-1;grid-row:2}.st-nav{grid-column:1/-1;grid-row:3;margin:0 -14px -9px;padding:7px 14px 12px;background:#fff;border-top:1px solid #e2eef5;box-shadow:0 12px 20px rgba(26,100,148,.07)}.st-nav ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px}.st-nav a{justify-content:flex-start;padding:10px 11px}.st-nav .is-current>a:after,.st-nav a[aria-current="page"]:after{left:11px;right:auto;width:24px}.st-nav .sub-menu{position:static;display:block;box-shadow:none;border:0;padding-left:12px}.st-hero{grid-template-columns:1fr;padding:32px 24px}.st-hero-side{display:none}.st-card-grid,.st-library-grid{grid-template-columns:repeat(2,1fr)}.st-library-layout{grid-template-columns:1fr}.st-filters{position:static}.st-work-hero{grid-template-columns:180px minmax(0,1fr);gap:22px;padding:20px}.st-meta-grid{grid-template-columns:1fr}.st-chapter-list{grid-template-columns:1fr}.st-reader-toolbar{top:116px}.st-footer-grid{grid-template-columns:1fr 1fr}.st-footer-brand{grid-column:1/-1}}
@media(max-width:560px){.st-topbar{display:none}.st-brand-copy small{display:none}.st-header{grid-template-columns:auto minmax(0,1fr) 42px}.st-nav ul{grid-template-columns:1fr 1fr}.st-header-search input{font-size:16px}.st-reader-toolbar{top:108px}.st-hero{padding:28px 18px;border-radius:20px}.st-hero h1{font-size:28px}.st-hero-search{display:grid}.st-card-grid,.st-library-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.st-card-body{padding:11px}.st-card h3{font-size:15px}.st-pill-grid{grid-template-columns:1fr 1fr}.st-work-hero{grid-template-columns:1fr}.st-work-cover{width:180px;margin:auto}.st-work-title{text-align:center}.st-work-kicker,.st-original-title,.st-author-line{text-align:center}.st-work-actions{justify-content:center}.st-work-section{padding:18px}.st-edition-table{display:block;overflow-x:auto}.st-reader-toolbar{top:112px;align-items:flex-start}.st-reader-toolbar>strong{display:none}.st-reader-paper{padding:28px 20px;border-radius:8px}.st-footer-grid{grid-template-columns:1fr}.st-footer-bottom{display:block}.st-footer-bottom span{display:block;margin-top:5px}}

/* Taxonomy navigation 1.1.0 */
.st-nav .menu-item-has-children>a{padding-right:8px}.st-menu-caret{width:7px;height:7px;margin-left:7px;border-right:1.7px solid currentColor;border-bottom:1.7px solid currentColor;transform:rotate(45deg) translateY(-2px);transition:transform .18s ease}.st-nav .menu-item-has-children:hover .st-menu-caret,.st-nav .menu-item-has-children:focus-within .st-menu-caret{transform:rotate(225deg) translate(-1px,-1px)}
.st-submenu-toggle{display:none}.st-nav .sub-menu{min-width:245px;max-height:70vh;overflow:auto}.st-nav .sub-menu li+li{margin-top:2px}.st-nav .sub-menu a{min-height:36px;border-radius:9px;font-size:13px}.st-nav .sub-menu a:hover{transform:translateX(2px)}
.st-menu-library>a{border:1px solid #cce7f7;background:#f6fbff}.st-menu-library.is-current>a{border-color:#9fd5f4}
@media(max-width:1100px){.st-nav .menu-item-has-children{display:grid;grid-template-columns:minmax(0,1fr) 40px}.st-nav .menu-item-has-children>a{grid-column:1}.st-submenu-toggle{display:flex;grid-column:2;grid-row:1;width:36px;height:36px;align-self:center;align-items:center;justify-content:center;border:0;border-radius:9px;background:#eef8fe;color:#1779b5;font-size:20px;line-height:1;cursor:pointer}.st-submenu-toggle[aria-expanded="true"]{background:#dff3ff}.st-nav .menu-item-has-children>.sub-menu{grid-column:1/-1;position:static;display:none;min-width:0;max-height:none;margin:3px 0 7px;padding:6px 8px 7px 14px;border:0;border-left:2px solid #bfe4f8;border-radius:0;box-shadow:none;background:#f9fcfe}.st-nav .menu-item-has-children.submenu-open>.sub-menu{display:block}.st-nav .menu-item-has-children:hover>.sub-menu{display:none}.st-nav .menu-item-has-children.submenu-open:hover>.sub-menu{display:block}.st-nav .menu-item-has-children.submenu-open .st-menu-caret{transform:rotate(225deg) translate(-1px,-1px)}}
@media(max-width:820px){.st-nav>ul.menu{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));align-items:start}.st-nav .menu-item-has-children{min-width:0}.st-nav .menu-item-has-children>.sub-menu{background:#f8fcff}.st-nav .sub-menu a{padding:8px 9px;font-size:12.5px}}
@media(max-width:560px){.st-nav>ul.menu{grid-template-columns:1fr}.st-nav .menu-item-has-children>.sub-menu{padding-left:12px}}

/* SachTre.com final logo + isolated book-globe favicon — 1.1.6 */
.st-brand{display:block;line-height:0;flex:0 0 auto}
.st-brand-logo{display:block;width:210px;max-width:24vw;height:auto;object-fit:contain}
.st-footer .st-brand-logo{width:260px;max-width:100%}
@media(max-width:1100px){.st-brand-logo{width:200px;max-width:42vw}}
@media(max-width:560px){.st-brand-logo{width:170px;max-width:58vw}}