:root{
  --site-navy:#0b3157;--site-navy-2:#0e426f;--site-blue:#1467b8;--site-cyan:#0f8fa6;--site-gold:#e9aa34;
  --site-text:#172b3f;--site-muted:#65758a;--site-line:#dfe8f1;--site-bg:#f3f7fb;--site-card:#fff;
  --site-shadow:0 18px 50px rgba(13,49,87,.10);--site-radius:18px
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body.tailieuhop-theme{margin:0;background:var(--site-bg);color:var(--site-text);font-family:"Segoe UI",Arial,sans-serif;font-size:15px;line-height:1.55;-webkit-font-smoothing:antialiased}body.tailieuhop-theme a{color:var(--site-blue)}
.tlh-site-container{width:min(1280px,calc(100% - 48px));margin:0 auto}.tlh-site-noscript{padding:12px 20px;background:#b42318;color:#fff;text-align:center;font-weight:700}
.tlh-site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.96);border-bottom:1px solid rgba(205,219,232,.85);box-shadow:0 5px 20px rgba(16,49,80,.045);backdrop-filter:blur(14px)}
.tlh-header-inner{min-height:78px;display:flex;align-items:center;gap:26px}.tlh-site-brand{display:flex;align-items:center;gap:12px;min-width:255px;color:var(--site-navy)!important;text-decoration:none!important}.tlh-brand-mark{width:46px;height:46px;display:flex;align-items:center;justify-content:center;border-radius:14px;background:linear-gradient(145deg,var(--site-navy),var(--site-blue));color:#fff;font-size:21px;box-shadow:0 10px 25px rgba(20,103,184,.24)}.tlh-brand-copy{display:flex;flex-direction:column;line-height:1.15}.tlh-brand-copy strong{font-size:18px;letter-spacing:.055em}.tlh-brand-copy small{margin-top:5px;color:#7b8b9e;font-size:11px;font-weight:600;letter-spacing:.025em}
.tlh-site-nav{display:flex;align-items:center;justify-content:center;gap:3px;flex:1}.tlh-site-nav a{display:flex;align-items:center;gap:7px;padding:10px 11px;border-radius:11px;color:#4e6075;text-decoration:none!important;font-weight:700;font-size:13px;transition:.18s ease;white-space:nowrap}.tlh-site-nav a i{color:#7f91a5;font-size:14px}.tlh-site-nav a:hover,.tlh-site-nav a.is-active{background:#edf5fc;color:var(--site-navy)}.tlh-site-nav a.is-active{box-shadow:inset 0 0 0 1px #d5e7f7}.tlh-site-nav a:hover i,.tlh-site-nav a.is-active i{color:var(--site-blue)}
.tlh-site-account{min-width:178px;display:flex;justify-content:flex-end;align-items:center;position:relative}.tlh-site-account a{text-decoration:none!important}.tlh-login-btn{height:42px;display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:0 16px;border-radius:12px;background:linear-gradient(135deg,var(--site-navy),var(--site-blue));color:#fff!important;font-size:13px;font-weight:800;box-shadow:0 9px 22px rgba(20,103,184,.20);transition:.18s ease}.tlh-login-btn:hover{transform:translateY(-1px);box-shadow:0 12px 28px rgba(20,103,184,.28);color:#fff!important}.tlh-login-btn i{font-size:14px}.tlh-user-menu{position:relative}.tlh-user-menu>summary{list-style:none}.tlh-user-menu>summary::-webkit-details-marker{display:none}.tlh-user-trigger{min-height:44px;display:flex;align-items:center;gap:9px;padding:5px 9px 5px 6px;border:1px solid var(--site-line);border-radius:13px;background:#fff;cursor:pointer;transition:.18s ease;user-select:none}.tlh-user-trigger:hover,.tlh-user-menu[open]>.tlh-user-trigger{border-color:#b9d4eb;box-shadow:0 8px 22px rgba(13,49,87,.09)}.tlh-user-avatar{width:32px;height:32px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;background:#eaf3fb;color:var(--site-blue);flex:0 0 auto}.tlh-user-avatar.is-large{width:42px;height:42px;border-radius:13px;font-size:16px}.tlh-user-label{display:flex;flex-direction:column;min-width:0;line-height:1.15}.tlh-user-label small{font-size:9px;color:#7f90a2;text-transform:uppercase;letter-spacing:.07em;font-weight:800}.tlh-user-label strong{max-width:105px;margin-top:3px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--site-navy);font-size:12px}.tlh-user-chevron{color:#8fa0b1;font-size:11px}.tlh-user-dropdown{position:absolute;right:0;top:calc(100% + 10px);width:245px;padding:9px;border:1px solid var(--site-line);border-radius:15px;background:#fff;box-shadow:0 20px 48px rgba(13,49,87,.16);z-index:1200}.tlh-user-dropdown:before{content:"";position:absolute;right:23px;top:-6px;width:11px;height:11px;background:#fff;border-left:1px solid var(--site-line);border-top:1px solid var(--site-line);transform:rotate(45deg)}.tlh-user-dropdown-head{display:flex;align-items:center;gap:10px;padding:8px 9px 12px}.tlh-user-dropdown-head div{min-width:0;display:flex;flex-direction:column}.tlh-user-dropdown-head small{color:#8292a3;font-size:10px;font-weight:700}.tlh-user-dropdown-head strong{margin-top:2px;color:var(--site-navy);font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.tlh-user-dropdown>a{display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:9px;color:#455b70!important;font-size:12px;font-weight:700}.tlh-user-dropdown>a:hover{background:#f1f7fc;color:var(--site-navy)!important}.tlh-user-dropdown>a i{width:17px;text-align:center;color:#7792aa}.tlh-user-dropdown>a.is-logout{color:#b42318!important}.tlh-user-dropdown>a.is-logout i{color:#b42318}.tlh-user-divider{height:1px;margin:5px 3px;background:var(--site-line)}.tlh-menu-toggle{display:none;width:42px;height:42px;padding:10px;border:1px solid var(--site-line);border-radius:11px;background:#fff}.tlh-menu-toggle span{display:block;height:2px;background:var(--site-navy);margin:4px 0;border-radius:2px}
.tlh-site-titlebar{background:linear-gradient(90deg,var(--site-navy),#0d4c78 55%,#116f8b);color:#dbeaf7;border-bottom:1px solid rgba(255,255,255,.08)}.tlh-site-titlebar .tlh-site-container{min-height:40px;display:flex;align-items:center;gap:9px;font-size:12px}.tlh-site-titlebar small{opacity:.72;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.tlh-titlebar-dot{width:7px;height:7px;border-radius:50%;background:#65d4c9;box-shadow:0 0 0 4px rgba(101,212,201,.12)}
.tlh-site-main{min-height:calc(100vh - 230px);padding:32px 0 44px}.tlh-site-main>.tlh-site-container>[id^=block-]{margin-bottom:18px}.tlh-site-main .alert{border-radius:12px}
.tlh-site-footer{background:#092a49;color:#cddcea;border-top:4px solid #0e7794}.tlh-footer-inner{min-height:150px;display:grid;grid-template-columns:1.4fr 1fr auto;gap:34px;align-items:center;padding-top:28px;padding-bottom:28px}.tlh-site-footer strong{color:#fff;font-size:16px;letter-spacing:.06em}.tlh-site-footer p{max-width:520px;margin:7px 0 0;color:#a9bfd2;font-size:13px}.tlh-footer-links{display:flex;gap:9px;flex-wrap:wrap}.tlh-footer-links a{color:#d8e9f5!important;text-decoration:none!important;padding:7px 9px;border-radius:8px;font-size:12px}.tlh-footer-links a:hover{background:rgba(255,255,255,.08)}.tlh-footer-copy{color:#88a8c1;font-size:12px;text-align:right}
.cookie-notice{position:fixed;left:18px;right:18px;bottom:18px;z-index:1200;display:flex;justify-content:center}.cookie-notice>div{max-width:900px;padding:13px 44px 13px 16px;border-radius:12px;background:#fff;color:#384a5c;box-shadow:var(--site-shadow);border:1px solid var(--site-line);position:relative}.cookie-notice button{position:absolute;right:10px;top:8px;border:0;background:transparent;font-size:24px;color:#7d8a98}.chromeframe{display:none}
/* Generic blocks kept intentionally minimal */
.tlh-site-main .panel,.tlh-site-main .well{border:1px solid var(--site-line);border-radius:14px;background:#fff;box-shadow:none}.tlh-site-main .panel-heading{border-radius:13px 13px 0 0;background:#f7fafd;border-color:var(--site-line);font-weight:800;color:var(--site-navy)}

/* === Theme tailieuhop V1.1.00 - Public Experience === */
.tlh-access-strip{border-bottom:1px solid #dbe6ef;background:#f8fbfd}.tlh-access-strip>.tlh-site-container{min-height:48px;display:flex;align-items:center;justify-content:space-between;gap:18px}.tlh-access-message{display:flex;align-items:center;gap:10px;min-width:0}.tlh-access-message>div{display:flex;align-items:baseline;gap:9px;min-width:0}.tlh-access-message strong{color:#23415c;font-size:12px}.tlh-access-message small{color:#718398;font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.tlh-access-icon{width:27px;height:27px;display:flex;align-items:center;justify-content:center;border-radius:9px;flex:0 0 auto}.tlh-access-strip.is-guest .tlh-access-icon{background:#fff2d9;color:#9a6500}.tlh-access-strip.is-user .tlh-access-icon{background:#e6f7eb;color:#24743c}.tlh-access-action{display:inline-flex;align-items:center;gap:7px;padding:7px 10px;border-radius:9px;background:#fff;border:1px solid #cedde9;color:#0b5d96!important;text-decoration:none!important;font-size:11px;font-weight:800;white-space:nowrap}.tlh-access-action:hover{border-color:#9fc3df;background:#edf7fc}.tlh-access-action.is-soft{color:#287249!important;border-color:#cce4d4;background:#f1fbf4}.tlh-help-fab{position:fixed;right:22px;bottom:22px;z-index:950;display:flex;align-items:center;gap:7px;padding:10px 13px;border-radius:999px;background:#fff;color:#0b527f!important;text-decoration:none!important;border:1px solid #d3e1ec;box-shadow:0 14px 34px rgba(10,49,87,.15);font-size:11px;font-weight:800}.tlh-help-fab i{width:24px;height:24px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:#eaf5fb;color:#0d6e96}.tlh-help-fab:hover{transform:translateY(-1px);border-color:#a9cae2}.tlh-footer-brand{display:flex;align-items:flex-start;gap:12px}.tlh-footer-mark{width:38px;height:38px;display:flex;align-items:center;justify-content:center;border-radius:11px;background:rgba(255,255,255,.08);color:#76d5d2;flex:0 0 auto}.tlh-footer-copy span{opacity:.7;font-size:10px}