/* =====================================================================
   GEOPET - Khoa Kỹ thuật Địa chất & Dầu khí - ĐH Bách Khoa TP.HCM
   Theme: Xanh Bách Khoa  |  Bootstrap 5 + FontAwesome 6 + jQuery
   ===================================================================== */

:root{
    --gp-navy:      #1B3E8C;
    --gp-navy-dark: #122C66;
    --gp-blue:      #1E88E5;
    --gp-blue-soft: #E8F1FB;
    --gp-accent:    #F5A623;
    --gp-text:      #263238;
    --gp-muted:     #6B7A90;
    --gp-line:      #E3E9F2;
    --gp-radius:    10px;
    --gp-shadow:    0 4px 18px rgba(27,62,140,.10);
    --gp-shadow-lg: 0 12px 34px rgba(27,62,140,.18);
    --gp-topbar-h:  40px;
    --gp-header-h:  86px;
}

/* ------------------------------ BASE ------------------------------ */
body.gp-body{
    font-family:'Be Vietnam Pro','Segoe UI',Roboto,Arial,sans-serif;
    color:var(--gp-text);
    font-size:15px;
    line-height:1.65;
    background:#fff;
    overflow-x:hidden;
}
a{text-decoration:none;color:var(--gp-navy);transition:color .2s ease}
a:hover{color:var(--gp-blue)}
img{max-width:100%}
.gp-section{padding:58px 0}
.gp-section--alt{background:linear-gradient(180deg,#F7FAFF 0%,#EEF4FD 100%)}

/* Tiêu đề khối */
.gp-heading{margin-bottom:30px}
.gp-heading .gp-title{
    font-size:26px;font-weight:800;color:var(--gp-navy);
    text-transform:uppercase;letter-spacing:.4px;margin:0;position:relative;
    padding-bottom:12px;display:inline-block;
}
.gp-heading .gp-title:after{
    content:"";position:absolute;left:0;bottom:0;width:64px;height:4px;border-radius:4px;
    background:linear-gradient(90deg,var(--gp-navy),var(--gp-blue));
}
.gp-heading--center{text-align:center}
.gp-heading--center .gp-title:after{left:50%;transform:translateX(-50%)}
.gp-heading .gp-sub{color:var(--gp-muted);margin:10px 0 0}
.gp-more{font-weight:600;font-size:14px;white-space:nowrap}
.gp-more i{transition:transform .2s ease}
.gp-more:hover i{transform:translateX(4px)}

.gp-btn-primary{
    background:var(--gp-navy);border:none;color:#fff;font-weight:600;
    padding:11px 26px;border-radius:40px;display:inline-block;transition:.25s;
}
.gp-btn-primary:hover{background:var(--gp-blue);color:#fff;box-shadow:var(--gp-shadow)}
.gp-btn-outline{
    border:2px solid #fff;color:#fff;font-weight:600;padding:9px 24px;
    border-radius:40px;display:inline-block;transition:.25s;
}
.gp-btn-outline:hover{background:#fff;color:var(--gp-navy)}

/* ------------------------------ TOPBAR ------------------------------ */
.gp-topbar{
    background:var(--gp-navy);color:rgba(255,255,255,.9);
    font-size:13.5px;height:var(--gp-topbar-h);display:flex;align-items:center;
}
.gp-topbar a{color:rgba(255,255,255,.9);}
.gp-topbar a:hover{color:var(--gp-blue);}
.gp-topbar-left{display:flex;align-items:center;gap:22px}
.gp-topbar-left a i{margin-right:6px;color:var(--gp-accent)}
.gp-topbar-right{display:flex;align-items:center;gap:6px}
.gp-tb-btn{
    width:32px;height:32px;border-radius:50%;display:inline-flex;
    align-items:center;justify-content:center;background:rgba(255,255,255,.10);
    border:none;color:#fff;transition:.2s;font-size:14px;
}
.gp-tb-btn:hover{background:var(--gp-blue);color:#fff}
.gp-lang-toggle{
    display:inline-flex;align-items:center;gap:7px;background:rgba(255,255,255,.10);
    border:none;color:#fff;border-radius:40px;padding:4px 12px;font-size:13px;transition:.2s;
}
.gp-lang-toggle:hover{background:var(--gp-blue)}
.gp-lang-toggle img{width:18px;height:13px;object-fit:cover;border-radius:2px}
.gp-topbar .dropdown-menu{
    font-size:14px;border:none;box-shadow:var(--gp-shadow-lg);border-radius:8px;padding:6px;min-width:170px; z-index: 9999; color: #1a1a1a;
}
.gp-topbar .dropdown-menu a{
    color: #1a1a1a;
}
.gp-topbar .dropdown-item{border-radius:6px;padding:8px 12px;display:flex;align-items:center;gap:9px}
.gp-topbar .dropdown-item.active,.gp-topbar .dropdown-item:active{background:var(--gp-blue-soft);color:var(--gp-navy)}

/* Form tìm kiếm trượt xuống */
.gp-searchbar{background:var(--gp-navy-dark);display:none}
.gp-searchbar .gp-search-inner{padding:18px 0}
.gp-searchbar form{position:relative;max-width:720px;margin:0 auto}
.gp-searchbar input{
    width:100%;border:none;border-radius:40px;padding:13px 56px 13px 22px;
    font-size:15px;outline:none;
}
.gp-searchbar button{
    position:absolute;right:5px;top:5px;bottom:5px;width:46px;border:none;
    border-radius:50%;background:var(--gp-blue);color:#fff;
}
.gp-searchbar button:hover{background:var(--gp-accent)}

/* ------------------------------ HEADER ------------------------------ */
.gp-header{background:#fff;box-shadow:0 2px 14px rgba(0,0,0,.07);position:relative;z-index:1030}
.gp-header.is-sticky{position:fixed;top:0;left:0;right:0;animation:gpDrop .35s ease}
@keyframes gpDrop{from{transform:translateY(-100%)}to{transform:translateY(0)}}
.gp-brand{display:flex;align-items:center;gap:13px;padding:11px 0;flex:0 0 auto;max-width:46%}
.gp-brand img{height:62px;width:auto;transition:height .25s}
.gp-brand-text{line-height:1.25}
.gp-brand-text .l1{font-size:12.5px;color:var(--gp-muted);text-transform:uppercase;font-weight:600;letter-spacing:.3px}
.gp-brand-text .l2{font-size:16.5px;color:var(--gp-navy);font-weight:800;text-transform:uppercase}
.gp-header.is-sticky .gp-brand img{height:48px}

.gp-nav{margin-left:auto;min-width:0}

/* Thanh menu ngang */
.gp-menu{
    list-style:none;margin:0;padding:0;
    display:flex;align-items:stretch;flex-wrap:nowrap;
}
.gp-menu-item{position:relative;display:flex;align-items:stretch}

.gp-menu-link{
    display:flex;align-items:center;gap:5px;
    color:var(--gp-navy);font-weight:600;font-size:14.5px;text-transform:uppercase;
    padding:0 13px;position:relative;
    white-space:nowrap;                 /* KHÔNG cho chữ xuống dòng */
    line-height:1.2;
}
.gp-menu-link i{font-size:10px;opacity:.6;transition:transform .2s}
.gp-menu-link:after{
    content:"";position:absolute;left:13px;right:13px;bottom:18px;height:2.5px;border-radius:2px;
    background:var(--gp-blue);transform:scaleX(0);transform-origin:left;transition:transform .25s;
}
.gp-menu-item:hover>.gp-menu-link,
.gp-menu-item.active>.gp-menu-link{color:var(--gp-blue)}
.gp-menu-item:hover>.gp-menu-link:after,
.gp-menu-item.active>.gp-menu-link:after{transform:scaleX(1)}
.gp-menu-item:hover>.gp-menu-link i{transform:rotate(180deg)}

/* Submenu - mở bằng CSS hover, không cần JS */
.gp-submenu{
    list-style:none;margin:0;padding:8px;
    position:absolute;top:200%;left:0;z-index:1040;
    min-width:220px;background:#fff;border-radius:8px;
    border-top:3px solid var(--gp-blue);box-shadow:var(--gp-shadow-lg);
    opacity:0;visibility:hidden;transform:translateY(8px);
    transition:opacity .2s ease,transform .2s ease,visibility .2s;
}
/* Vùng đệm vô hình nối mục cha với submenu để rê chuột không bị mất */
.gp-menu-item.has-sub:before{
    content:"";position:absolute;left:0;right:0;top:100%;height:60px;display:none;
}
.gp-menu-item.has-sub:hover:before{display:block}

.gp-menu-item.has-sub:hover>.gp-submenu,
.gp-menu-item.has-sub:focus-within>.gp-submenu{
    opacity:1;visibility:visible;transform:translateY(0);
}
.gp-submenu li{display:block}
.gp-submenu a{
    display:block;padding:9px 13px;border-radius:6px;
    font-size:14.5px;font-weight:500;color:var(--gp-text);line-height:1.45;
}
.gp-submenu a:hover{background:var(--gp-blue-soft);color:var(--gp-navy)}

/* Mục gần cuối: đổ submenu sang trái để không tràn khỏi màn hình */
.gp-submenu--right{left:auto;right:0}

/* --------- Submenu nhiều cấp: cấp 2 trở đi mở ngang sang phải --------- */
.gp-submenu li{position:relative}
.gp-submenu a{display:flex;align-items:center;justify-content:space-between;gap:10px}
.gp-submenu a>i{font-size:10px;opacity:.55;flex:0 0 auto}
.gp-submenu li.has-sub>.gp-sub-parent{font-weight:600}

/* Mục còn cấp con: hiển thị như một dòng menu nhưng KHÔNG bấm được */
.gp-sub-parent{
    display:flex;align-items:center;justify-content:space-between;gap:10px;
    padding:9px 13px;border-radius:6px;font-size:14.5px;color:var(--gp-text);
    line-height:1.45;cursor:default;user-select:none;
}
.gp-submenu li.has-sub:hover>.gp-sub-parent{background:var(--gp-blue-soft);color:var(--gp-navy)}
.gp-sub-parent>i{font-size:10px;opacity:.55;flex:0 0 auto}

.gp-submenu--fly{
    top:-8px;left:100%;margin-left:2px;
    transform:translateX(8px);           /* trạng thái ẩn: trượt nhẹ sang phải */
}
.gp-submenu li.has-sub:hover>.gp-submenu--fly,
.gp-submenu li.has-sub:focus-within>.gp-submenu--fly{
    opacity:1;visibility:visible;transform:translateX(0);
}


/* Nhánh sát mép phải: đổ ngược sang trái để không tràn màn hình */
.gp-submenu--right .gp-submenu--fly,
.gp-submenu--right li.has-sub .gp-submenu--fly{
    left:auto;right:100%;margin-left:0;margin-right:2px;transform:translateX(-8px);
}
.gp-submenu--right li.has-sub:hover>.gp-submenu--fly{transform:translateX(0)}
.gp-submenu--right .gp-sub-parent{flex-direction:row-reverse}
.gp-submenu--right .gp-sub-parent>i{transform:rotate(180deg)}

/* --------- Menu mobile nhiều cấp (offcanvas) --------- */
.gp-mnav{list-style:none;margin:0;padding:0}
.gp-mnav-row{display:flex;align-items:stretch;border-bottom:1px solid var(--gp-line)}
.gp-mnav-row a{
    flex:1;padding:11px 4px;color:var(--gp-navy);font-weight:600;
    font-size:14px;text-transform:uppercase;line-height:1.4;
}
.gp-mnav-toggle{
    flex:0 0 42px;border:none;background:none;color:var(--gp-muted);font-size:13px;
    transition:transform .25s;
}
.gp-mnav-toggle.is-open{transform:rotate(180deg);color:var(--gp-blue)}
.gp-mnav-parent{
    flex:1;padding:11px 4px;color:var(--gp-navy);font-weight:600;font-size:14px;
    text-transform:uppercase;line-height:1.4;cursor:default;user-select:none;
}
.gp-mnav-sub .gp-mnav-parent{text-transform:none;font-weight:600;font-size:13.5px;color:var(--gp-text)}
.gp-mnav-row.is-parent{cursor:pointer}

.gp-mnav-sub{display:none;padding-left:14px;border-left:2px solid var(--gp-blue-soft);margin-left:4px}
.gp-mnav-sub.is-open{display:block}
.gp-mnav-sub .gp-mnav-row a{
    text-transform:none;font-weight:500;font-size:13.5px;color:var(--gp-text);padding:9px 4px;
}
.gp-mnav-sub .gp-mnav-sub .gp-mnav-row a{font-size:13px;color:var(--gp-muted)}

/* Tự thu gọn khi thanh menu gần hết chỗ (class do geopet.js gắn) */
.gp-menu.is-tight .gp-menu-link{font-size:13.5px;padding:0 10px}
.gp-menu.is-tight .gp-menu-link:after{left:10px;right:10px}
.gp-menu.is-tighter .gp-menu-link{font-size:12.5px;padding:0 7px;letter-spacing:-.2px}
.gp-menu.is-tighter .gp-menu-link:after{left:7px;right:7px}
.gp-menu.is-tighter .gp-menu-link i{display:none}

.gp-burger{
    border:none;background:var(--gp-blue-soft);color:var(--gp-navy);
    width:44px;height:44px;border-radius:8px;font-size:19px;
}

/* Offcanvas mobile */
.gp-offcanvas{width:300px}
.gp-offcanvas .offcanvas-header{background:var(--gp-navy);color:#fff}
.gp-offcanvas .offcanvas-header .btn-close{filter:invert(1) grayscale(100%) brightness(200%)}
.gp-offcanvas .nav-link{
    color:var(--gp-navy);font-weight:600;padding:11px 4px;border-bottom:1px solid var(--gp-line);
    text-transform:uppercase;font-size:14px;
}
.gp-offcanvas .dropdown-menu{border:none;box-shadow:none;background:#F7FAFF;border-radius:8px}

/* ------------------------------ SLIDER ------------------------------ */
.gp-slider .carousel-item{height:520px}
.gp-slider .carousel-item img{width:100%;height:100%;object-fit:cover}
.gp-slider .gp-slide-mask{
    position:absolute;inset:0;
    background:linear-gradient(90deg,rgba(18,44,102,.86) 0%,rgba(18,44,102,.55) 45%,rgba(18,44,102,.10) 100%);
}
.gp-slider .carousel-caption{
    left:0;right:0;bottom:0;top:0;display:flex;flex-direction:column;
    align-items:flex-start;justify-content:center;text-align:left;padding:0;
}
.gp-slider .gp-slide-inner{max-width:620px}
.gp-slider .gp-slide-tag{
    display:inline-block;background:var(--gp-accent);color:#1a1a1a;font-weight:700;
    font-size:12.5px;text-transform:uppercase;padding:5px 14px;border-radius:30px;margin-bottom:16px;
}
.gp-slider h2{font-size:40px;font-weight:800;line-height:1.25;text-shadow:0 2px 14px rgba(0,0,0,.3)}
.gp-slider p{font-size:16.5px;color:rgba(255,255,255,.92);margin:14px 0 24px}
.gp-slider .carousel-control-prev,.gp-slider .carousel-control-next{width:60px;opacity:0;transition:.3s}
.gp-slider:hover .carousel-control-prev,.gp-slider:hover .carousel-control-next{opacity:.9}
.gp-slider .carousel-control-prev-icon,.gp-slider .carousel-control-next-icon{
    width:46px;height:46px;background-color:rgba(255,255,255,.18);border-radius:50%;background-size:44%;
}
.gp-slider .carousel-indicators [data-bs-target]{
    width:34px;height:4px;border-radius:4px;background:rgba(255,255,255,.55);border:none;
}
.gp-slider .carousel-indicators .active{background:var(--gp-accent);width:48px}

/* Thanh truy cập nhanh dưới slider */
.gp-quick{margin-top:-42px;position:relative;z-index:5}
.gp-quick-inner{
    background:#fff;border-radius:var(--gp-radius);box-shadow:var(--gp-shadow-lg);
    display:grid;grid-template-columns:repeat(4,1fr);overflow:hidden;
}
.gp-quick-item{
    display:flex;align-items:center;gap:14px;padding:20px 22px;border-right:1px solid var(--gp-line);transition:.25s;
}
.gp-quick-item:last-child{border-right:none}
.gp-quick-item:hover{background:var(--gp-blue-soft)}
.gp-quick-item i{
    width:46px;height:46px;flex:0 0 46px;border-radius:12px;display:grid;place-items:center;
    background:var(--gp-navy);color:#fff;font-size:19px;
}
.gp-quick-item span{font-weight:700;color:var(--gp-navy);font-size:14.5px;line-height:1.35}

/* ------------------------------ CARD TIN TỨC ------------------------------ */
.gp-card{
    background:#fff;border-radius:var(--gp-radius);overflow:hidden;height:100%;
    border:1px solid var(--gp-line);box-shadow:0 2px 10px rgba(27,62,140,.05);
    transition:transform .28s ease,box-shadow .28s ease;display:flex;flex-direction:column;
}
.gp-card:hover{transform:translateY(-6px);box-shadow:var(--gp-shadow-lg)}
.gp-card-thumb{position:relative;overflow:hidden;aspect-ratio:16/10;background:var(--gp-blue-soft)}
.gp-card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.gp-card:hover .gp-card-thumb img{transform:scale(1.07)}
.gp-card-badge{
    position:absolute;top:12px;left:12px;background:var(--gp-navy);color:#fff;
    font-size:11.5px;font-weight:700;text-transform:uppercase;padding:4px 11px;border-radius:30px;
}
.gp-card-body{padding:16px 17px 18px;display:flex;flex-direction:column;flex:1}
.gp-card-date{font-size:12.5px;color:var(--gp-muted);margin-bottom:8px;display:flex;align-items:center;gap:6px}
.gp-card-date i{color:var(--gp-blue)}
.gp-card-title{font-size:16px;font-weight:700;line-height:1.45;margin:0 0 9px}
.gp-card-title a{color:var(--gp-navy);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.gp-card:hover .gp-card-title a{color:var(--gp-blue)}
.gp-card-desc{
    font-size:14px;color:var(--gp-muted);margin:0 0 14px;
    display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.gp-card-link{margin-top:auto;font-size:13.5px;font-weight:700;color:var(--gp-blue)}
.gp-card-link i{font-size:11px;margin-left:5px;transition:transform .2s}
.gp-card:hover .gp-card-link i{transform:translateX(4px)}

/* ------------------------------ TRẢI NGHIỆM KHTĐ ------------------------------ */
.gp-exp{
    background:linear-gradient(120deg,var(--gp-navy) 0%,var(--gp-navy-dark) 55%,#0B1F4A 100%);
    color:#fff;position:relative;overflow:hidden;
}
.gp-exp:before{
    content:"";position:absolute;right:-90px;top:-90px;width:340px;height:340px;border-radius:50%;
    background:radial-gradient(circle,rgba(30,136,229,.35),transparent 68%);
}
.gp-exp .gp-title{color:#fff}
.gp-exp .gp-title:after{background:var(--gp-accent)}
.gp-exp-img{border-radius:var(--gp-radius);overflow:hidden;box-shadow:var(--gp-shadow-lg);position:relative}
.gp-exp-img img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .6s}
.gp-exp-img:hover img{transform:scale(1.05)}
.gp-exp-play{
    position:absolute;inset:0;display:grid;place-items:center;background:rgba(18,44,102,.25);color:#fff;
}
.gp-exp-play i{
    width:66px;height:66px;border-radius:50%;background:rgba(255,255,255,.92);color:var(--gp-navy);
    display:grid;place-items:center;font-size:22px;padding-left:4px;transition:.25s;
}
.gp-exp-img:hover .gp-exp-play i{transform:scale(1.1);background:var(--gp-accent)}
.gp-exp-desc{color:rgba(255,255,255,.88);font-size:15.5px}
.gp-exp-list{list-style:none;padding:0;margin:20px 0 26px}
.gp-exp-list li{padding:7px 0 7px 30px;position:relative;color:rgba(255,255,255,.9)}
.gp-exp-list li:before{
    content:"\f058";font-family:"Font Awesome 6 Free";font-weight:900;
    position:absolute;left:0;top:7px;color:var(--gp-accent);
}

/* ------------------------------ ĐỐI TÁC (marquee) ------------------------------ */
.gp-partner-viewport{overflow:hidden;position:relative;padding:6px 0;-webkit-mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent)}
.gp-partner-track{display:flex;align-items:center;gap:26px;width:max-content;animation:gpMarquee 34s linear infinite}
.gp-partner-viewport:hover .gp-partner-track{animation-play-state:paused}
@keyframes gpMarquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}
.gp-partner-item{
    flex:0 0 auto;width:186px;height:98px;background:#fff;border:1px solid var(--gp-line);
    border-radius:var(--gp-radius);display:grid;place-items:center;padding:14px;transition:.25s;
}
.gp-partner-item:hover{border-color:var(--gp-blue);box-shadow:var(--gp-shadow);transform:translateY(-4px)}
.gp-partner-item img{max-height:60px;max-width:100%;object-fit:contain;filter:grayscale(1);opacity:.72;transition:.25s}
.gp-partner-item:hover img{filter:none;opacity:1}

/* ------------------------------ LIÊN HỆ ------------------------------ */
.gp-contact-box{background:#fff;border-radius:var(--gp-radius);box-shadow:var(--gp-shadow);padding:28px;}
.gp-contact-list{list-style:none;padding:0;margin:0}
.gp-contact-list li{display:flex;gap:14px;padding:13px 0;border-bottom:1px dashed var(--gp-line)}
.gp-contact-list li:last-child{border-bottom:none}
.gp-contact-list i{
    width:40px;height:40px;flex:0 0 40px;border-radius:10px;display:grid;place-items:center;
    background:var(--gp-blue-soft);color:var(--gp-navy);font-size:16px;
}
.gp-contact-list .lbl{font-size:12.5px;text-transform:uppercase;color:var(--gp-muted);font-weight:600;letter-spacing:.3px}
.gp-contact-list .val{font-weight:600;color:var(--gp-text);font-size:15px}
.gp-map{border-radius:var(--gp-radius);overflow:hidden;box-shadow:var(--gp-shadow);height:100%;min-height:420px}
.gp-map iframe{width:100%;min-height:420px;border:0;display:block}

/* ------------------------------ FOOTER ------------------------------ */
.gp-footer{background:var(--gp-navy-dark);color:rgba(255,255,255,.78);padding-top:52px;font-size:14.5px}
.gp-footer a{color:rgba(255,255,255,.78)}
.gp-footer a:hover{color:#fff}
.gp-footer h5{
    color:#fff;font-size:16px;font-weight:700;text-transform:uppercase;
    margin-bottom:18px;padding-bottom:10px;position:relative;
}
.gp-footer h5:after{content:"";position:absolute;left:0;bottom:0;width:44px;height:3px;background:var(--gp-accent);border-radius:3px}
.gp-footer-brand{display:flex;gap:14px;align-items:center;margin-bottom:16px}
.gp-footer-brand img{height:64px;background:#fff;border-radius:10px;padding:5px}
.gp-footer-links{list-style:none;padding:0;margin:0}
.gp-footer-links li{padding:5px 0}
.gp-footer-links i{font-size:11px;margin-right:8px;color:var(--gp-accent)}

/* Thống kê truy cập */
.gp-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.gp-stat{background:rgba(255,255,255,.07);border-radius:8px;padding:11px 13px;display:flex;align-items:center;gap:11px}
.gp-stat i{width:34px;height:34px;flex:0 0 34px;border-radius:8px;display:grid;place-items:center;background:rgba(255,255,255,.10);color:var(--gp-accent);font-size:14px}
.gp-stat .n{font-weight:800;color:#fff;font-size:16px;line-height:1.1}
.gp-stat .t{font-size:12px;color:rgba(255,255,255,.65)}
.gp-stat.is-online .n{color:#4ADE80}
.gp-stat.is-online i{color:#4ADE80}

/* Mạng xã hội */
.gp-social{display:flex;gap:10px;margin-top:18px}
.gp-social a{
    width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
    background:rgba(255,255,255,.10);color:#fff;font-size:16px;transition:.25s;
}
.gp-social a.fb:hover{background:#1877F2}
.gp-social a.zl:hover{background:#0068FF}
.gp-social a.yt:hover{background:#FF0000}
.gp-social a.zl img{width:20px;height:20px;filter:brightness(0) invert(1)}

.gp-copyright{
    margin-top:40px;border-top:1px solid rgba(255,255,255,.12);padding:18px 0;
    font-size:13.5px;color:rgba(255,255,255,.62);
}

/* Nút lên đầu trang */
.gp-totop{
    position:fixed;right:22px;bottom:22px;width:46px;height:46px;border-radius:50%;border:none;
    background:var(--gp-navy);color:#fff;box-shadow:var(--gp-shadow-lg);z-index:1040;
    opacity:0;visibility:hidden;transform:translateY(14px);transition:.28s;
}
.gp-totop.show{opacity:1;visibility:visible;transform:translateY(0)}
.gp-totop:hover{background:var(--gp-blue)}

/* ------------------------------ RESPONSIVE ------------------------------ */
@media (max-width:1199.98px){
        .gp-slider h2{font-size:34px}
}
@media (max-width:991.98px){
    .gp-section{padding:44px 0}
    .gp-slider .carousel-item{height:400px}
    .gp-slider h2{font-size:28px}
    .gp-slider p{font-size:15px}
    .gp-quick{margin-top:0;padding-top:26px}
    .gp-quick-inner{grid-template-columns:repeat(2,1fr)}
    .gp-quick-item:nth-child(2){border-right:none}
    .gp-quick-item:nth-child(-n+2){border-bottom:1px solid var(--gp-line)}
    .gp-brand img{height:52px}
    .gp-brand-text .l2{font-size:15.5px}
    .gp-map,.gp-map iframe{min-height:320px}
}
@media (max-width:767.98px){
    .gp-topbar{height:auto;padding:7px 0;font-size:12.5px}
    .gp-topbar-left{gap:14px}
    .gp-slider .carousel-item{height:340px}
    .gp-slider h2{font-size:23px}
    .gp-slider p{display:none}
    .gp-heading .gp-title{font-size:20px}
    .gp-partner-item{width:150px;height:86px}
    .gp-stats{grid-template-columns:repeat(2,1fr)}
    .gp-brand-text{display:none}
}
@media (max-width:575.98px){
    .gp-quick-inner{grid-template-columns:1fr}
    .gp-quick-item{border-right:none;border-bottom:1px solid var(--gp-line)}
    .gp-slider .carousel-item{height:290px}
    .gp-contact-box{padding:20px}
    .gp-footer{text-align:left}
}

/* =====================================================================
   TRANG TRONG (Giới thiệu, Giảng viên, Chi tiết bài viết)
   ===================================================================== */

/* ------------------------- Tiêu đề trang ------------------------- */
.gp-pagehead{
    background:linear-gradient(120deg,var(--gp-navy) 0%,var(--gp-navy-dark) 60%,#0B1F4A 100%);
    color:#fff;padding:34px 0 30px;position:relative;overflow:hidden;
}
.gp-pagehead:before{
    content:"";position:absolute;right:-80px;top:-110px;width:300px;height:300px;border-radius:50%;
    background:radial-gradient(circle,rgba(30,136,229,.35),transparent 68%);
}
.gp-pagehead h1{
    font-size:28px;font-weight:800;margin:10px 0 0;position:relative;text-transform:uppercase;letter-spacing:.3px;
}
.gp-breadcrumb{font-size:13.5px;color:rgba(255,255,255,.75);display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.gp-breadcrumb a{color:rgba(255,255,255,.88)}
.gp-breadcrumb a:hover{color:var(--gp-accent)}
.gp-breadcrumb i{font-size:10px;opacity:.6}

/* ------------------------- Khối rỗng ------------------------- */
.gp-empty{text-align:center;padding:52px 16px;color:var(--gp-muted)}
.gp-empty i{font-size:42px;display:block;margin-bottom:12px;color:#c7d2e3}
.gp-empty code{background:var(--gp-blue-soft);padding:2px 6px;border-radius:4px;color:var(--gp-navy)}

/* ------------------------- Nội dung soạn thảo ------------------------- */
.gp-rte{font-size:15px;line-height:1.75;color:var(--gp-text);word-break:break-word}
.gp-rte p{margin:0 0 10px}
.gp-rte img{max-width:100%;height:auto;border-radius:8px;margin:8px 0}
.gp-rte .table{ max-width: 100%!important;}
.gp-rte table{width:100%;border-collapse:collapse;margin:10px 0}
.gp-rte table td,.gp-rte table th{border:1px solid var(--gp-line);padding:8px 10px}
.gp-rte ul,.gp-rte ol{padding-left:22px;margin:0 0 10px}
.gp-rte h1,.gp-rte h2,.gp-rte h3,.gp-rte h4{color:var(--gp-navy);font-weight:700;margin:16px 0 8px}
.gp-rte a{color:var(--gp-blue);text-decoration:underline}

/* ------------------------- Bộ lọc dạng chip ------------------------- */
.gp-lec-filter{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:26px}
.gp-chip{
    display:inline-block;padding:7px 16px;border-radius:30px;border:1px solid var(--gp-line);
    background:#fff;color:var(--gp-navy);font-size:14px;font-weight:600;transition:.2s;
}
.gp-chip:hover{border-color:var(--gp-blue);color:var(--gp-blue)}
.gp-chip.active{background:var(--gp-navy);border-color:var(--gp-navy);color:#fff}

/* ------------------------- Nhóm giảng viên ------------------------- */
.gp-lec-group{margin-bottom:38px}
.gp-lec-group-title{
    font-size:19px;font-weight:800;color:var(--gp-navy);text-transform:uppercase;
    padding:11px 16px;background:var(--gp-blue-soft);border-left:4px solid var(--gp-navy);
    border-radius:0 8px 8px 0;margin:0 0 16px;display:flex;flex-wrap:wrap;align-items:center;gap:10px;
}
.gp-lec-count{
    font-size:12.5px;font-weight:600;text-transform:none;color:#fff;
    background:var(--gp-blue);padding:2px 11px;border-radius:30px;
}

/* ------------------------- Bảng giảng viên ------------------------- */
.gp-lec-table{width:100%;border-collapse:collapse;background:#fff;font-size:14.5px}
.gp-lec-table thead th{
    background:var(--gp-navy);color:#fff;font-weight:700;font-size:13.5px;text-transform:uppercase;
    padding:12px 14px;text-align:left;letter-spacing:.3px;border:1px solid var(--gp-navy);
}
.gp-lec-table tbody td{border:1px solid var(--gp-line);padding:14px;vertical-align:top}
.gp-lec-table tbody tr:nth-child(even){background:#FAFCFF}
.gp-lec-table tbody tr:hover{background:var(--gp-blue-soft)}

.gp-lec-stt{text-align:center;font-weight:700;color:var(--gp-navy);font-size:15px}
.gp-lec-name{font-size:16px;font-weight:700;margin:0 0 8px;line-height:1.4}
.gp-lec-name a{color:var(--gp-navy)}
.gp-lec-name a:hover{color:var(--gp-blue)}
.gp-lec-row{font-size:14px;margin-bottom:5px;color:var(--gp-text);line-height:1.55}
.gp-lec-lbl{color:var(--gp-muted);font-weight:600;margin-right:4px}
.gp-lec-more{
    display:inline-block;margin-top:9px;font-size:13.5px;font-weight:700;color:#fff;
    background:var(--gp-navy);padding:6px 15px;border-radius:30px;transition:.2s;
}
.gp-lec-more:hover{background:var(--gp-blue);color:#fff}
.gp-lec-more i{font-size:11px;margin-left:5px}

.gp-lec-photo{text-align:center;width:140px}
.gp-lec-photo img{
    width:112px;height:140px;object-fit:cover;border-radius:8px;
    border:1px solid var(--gp-line);background:var(--gp-blue-soft);
}
.gp-lec-intro .gp-rte{font-size:14px;line-height:1.65;max-height:230px;overflow:auto}

/* ------------------------- Hồ sơ giảng viên ------------------------- */
.gp-lec-profile{
    background:#fff;border:1px solid var(--gp-line);border-radius:var(--gp-radius);
    padding:22px;text-align:center;box-shadow:var(--gp-shadow);position:sticky;top:100px;
}
.gp-lec-profile img{
    width:170px;height:212px;object-fit:cover;border-radius:10px;margin-bottom:16px;
    border:1px solid var(--gp-line);
}
.gp-lec-profile h2{font-size:19px;font-weight:800;color:var(--gp-navy);margin:0 0 4px}
.gp-lec-pos{color:var(--gp-blue);font-weight:600;font-size:14.5px;margin:0 0 14px}
.gp-lec-meta{list-style:none;padding:0;margin:0;text-align:left}
.gp-lec-meta li{display:flex;gap:11px;padding:9px 0;border-top:1px dashed var(--gp-line);font-size:14px}
.gp-lec-meta i{width:22px;flex:0 0 22px;color:var(--gp-navy);margin-top:3px}
.gp-lec-meta .lbl{display:block;font-size:12px;color:var(--gp-muted);text-transform:uppercase;font-weight:600}
.gp-lec-meta a{word-break:break-all}

.gp-lec-block{
    background:#fff;border:1px solid var(--gp-line);border-radius:var(--gp-radius);
    padding:22px;margin-bottom:20px;box-shadow:0 2px 10px rgba(27,62,140,.05);
}
.gp-lec-block h3{
    font-size:16px;font-weight:800;color:var(--gp-navy);text-transform:uppercase;
    margin:0 0 14px;padding-bottom:10px;border-bottom:2px solid var(--gp-blue-soft);
}
.gp-lec-block h3 i{color:var(--gp-blue);margin-right:7px}
.gp-lec-block p{margin:0;font-size:15px;line-height:1.7}

.gp-paper-list{padding-left:20px;margin:0;font-size:14.5px}
.gp-paper-list li{padding:9px 0;border-bottom:1px dashed var(--gp-line);line-height:1.6}
.gp-paper-list li:last-child{border-bottom:none}
.gp-paper-meta{display:block;font-size:12.5px;color:var(--gp-muted);margin-top:3px}

/* ------------------------- Chi tiết bài viết ------------------------- */
.gp-article{background:#fff}
.gp-article-meta{
    display:flex;flex-wrap:wrap;gap:18px;font-size:13.5px;color:var(--gp-muted);
    padding-bottom:14px;border-bottom:1px solid var(--gp-line);margin-bottom:18px;
}
.gp-article-meta i{color:var(--gp-blue);margin-right:5px}
.gp-article-lead{
    font-size:16px;font-weight:500;color:var(--gp-navy);line-height:1.7;
    background:var(--gp-blue-soft);border-left:4px solid var(--gp-blue);
    padding:14px 18px;border-radius:0 8px 8px 0;margin-bottom:20px;
}
.gp-article-photo{margin:0 0 20px}
.gp-article-photo img{width:100%;border-radius:var(--gp-radius)}

/* Thẻ có icon thay ảnh */
.gp-card-thumb--icon{display:grid;place-items:center;background:linear-gradient(135deg,var(--gp-navy),var(--gp-blue))}
.gp-card-thumb--icon i{font-size:52px;color:#fff;opacity:.92}
.gp-card--accent{border-color:var(--gp-blue)}

/* ------------------------- Responsive ------------------------- */
@media (max-width:991.98px){
    .gp-lec-profile{position:static}
    .gp-pagehead h1{font-size:23px}
}
@media (max-width:767.98px){
    /* Bảng giảng viên chuyển sang dạng thẻ xếp dọc */
    .gp-lec-table thead{display:none}
    .gp-lec-table,.gp-lec-table tbody,.gp-lec-table tr,.gp-lec-table td{display:block;width:100%}
    .gp-lec-table tr{
        border:1px solid var(--gp-line);border-radius:var(--gp-radius);
        margin-bottom:14px;overflow:hidden;background:#fff;
    }
    .gp-lec-table tbody td{border:none;border-bottom:1px solid var(--gp-line);padding:12px 14px}
    .gp-lec-table tbody td:last-child{border-bottom:none}
    .gp-lec-stt{
        background:var(--gp-navy);color:#fff;text-align:left;font-size:13px;
        text-transform:uppercase;padding:8px 14px !important;
    }
    .gp-lec-stt:before{content:"STT ";font-weight:600}
    .gp-lec-photo{text-align:left;width:auto}
    .gp-lec-photo img{width:120px;height:150px}
    .gp-lec-intro .gp-rte{max-height:none}
}

/* =====================================================================
   THƯ VIỆN ẢNH (giao diện ngoài)
   ===================================================================== */
.gp-pagehead-meta{
    display:flex;flex-wrap:wrap;gap:18px;margin-top:8px;
    font-size:13.5px;color:rgba(255,255,255,.8);position:relative;
}
.gp-pagehead-meta i{color:var(--gp-accent);margin-right:5px}

/* ------------------------- Lưới album ------------------------- */
.gp-album-list{display:grid;gap:20px;grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}
.gp-album-item{
    display:block;background:#fff;border:1px solid var(--gp-line);border-radius:var(--gp-radius);
    overflow:hidden;transition:transform .25s,box-shadow .25s,border-color .25s;
}
.gp-album-item:hover{transform:translateY(-5px);box-shadow:var(--gp-shadow-lg);border-color:var(--gp-blue)}
.gp-album-thumb{display:block;position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--gp-blue-soft)}
.gp-album-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.gp-album-item:hover .gp-album-thumb img{transform:scale(1.07)}
.gp-album-num{
    position:absolute;right:10px;bottom:10px;background:rgba(18,44,102,.88);color:#fff;
    font-size:12.5px;font-weight:600;padding:4px 11px;border-radius:30px;
}
.gp-album-info{display:block;padding:14px 15px 16px}
.gp-album-title{
    display:block;font-size:15.5px;font-weight:700;color:var(--gp-navy);line-height:1.45;
    -webkit-line-clamp:2;-webkit-box-orient:vertical;display:-webkit-box;overflow:hidden;
}
.gp-album-item:hover .gp-album-title{color:var(--gp-blue)}
.gp-album-meta{display:block;margin-top:7px;font-size:12.5px;color:var(--gp-muted)}
.gp-album-meta i{color:var(--gp-blue);margin-right:5px}

/* ------------------------- Lưới ảnh trong album ------------------------- */
.gp-photo-wall{display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(200px,1fr))}
.gp-photo-cell{
    display:block;position:relative;aspect-ratio:4/3;border-radius:8px;overflow:hidden;
    background:var(--gp-blue-soft);border:1px solid var(--gp-line);
}
.gp-photo-cell img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.gp-photo-cell:hover img{transform:scale(1.08)}
.gp-photo-zoom{
    position:absolute;inset:0;display:grid;place-items:center;color:#fff;font-size:22px;
    background:rgba(18,44,102,.45);opacity:0;transition:opacity .25s;
}
.gp-photo-cell:hover .gp-photo-zoom{opacity:1}
.gp-photo-cap{
    position:absolute;left:0;right:0;bottom:0;padding:16px 10px 8px;color:#fff;font-size:12.5px;
    background:linear-gradient(transparent,rgba(0,0,0,.72));
    white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}

/* ------------------------- Slideshow toàn màn hình ------------------------- */
.gp-lightbox{
    position:fixed;inset:0;z-index:2000;background:rgba(8,14,30,.96);
    display:none;flex-direction:column;
}
.gp-lightbox.is-open{display:flex}
.gp-lb-stage{
    flex:1;display:flex;align-items:center;justify-content:center;padding:56px 70px 10px;min-height:0;
}
.gp-lb-stage img{
    max-width:100%;max-height:100%;object-fit:contain;border-radius:6px;
    animation:gpFade .3s ease;
}
@keyframes gpFade{from{opacity:0;transform:scale(.98)}to{opacity:1;transform:scale(1)}}

.gp-lb-close{
    position:absolute;top:14px;right:16px;z-index:3;width:44px;height:44px;border:none;border-radius:50%;
    background:rgba(255,255,255,.12);color:#fff;font-size:20px;transition:.2s;
}
.gp-lb-close:hover{background:#e53935}

.gp-lb-nav{
    position:absolute;top:50%;transform:translateY(-50%);z-index:3;
    width:52px;height:52px;border:none;border-radius:50%;
    background:rgba(255,255,255,.12);color:#fff;font-size:20px;transition:.2s;
}
.gp-lb-nav:hover{background:var(--gp-blue)}
.gp-lb-prev{left:14px}
.gp-lb-next{right:14px}

.gp-lb-bar{
    display:flex;align-items:center;gap:14px;padding:12px 20px 18px;color:#fff;
    background:linear-gradient(transparent,rgba(0,0,0,.55));
}
.gp-lb-play{
    width:40px;height:40px;flex:0 0 40px;border:none;border-radius:50%;
    background:rgba(255,255,255,.14);color:#fff;font-size:15px;transition:.2s;
}
.gp-lb-play:hover{background:var(--gp-accent);color:#1a1a1a}
.gp-lb-play.is-playing{background:var(--gp-accent);color:#1a1a1a}
.gp-lb-caption{flex:1;font-size:14.5px;text-align:center;color:rgba(255,255,255,.9)}
.gp-lb-count{font-size:13.5px;color:rgba(255,255,255,.65);white-space:nowrap}

/* ------------------------- Phân trang ------------------------- */
.gp-pager{display:flex;justify-content:center;gap:6px;flex-wrap:wrap}
.gp-pager a{
    min-width:38px;height:38px;display:grid;place-items:center;padding:0 12px;
    border:1px solid var(--gp-line);border-radius:8px;background:#fff;
    color:var(--gp-navy);font-weight:600;font-size:14px;transition:.2s;
}
.gp-pager a:hover{border-color:var(--gp-blue);color:var(--gp-blue)}
.gp-pager a.active{background:var(--gp-navy);border-color:var(--gp-navy);color:#fff}

@media (max-width:767.98px){
    .gp-album-list{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:14px}
    .gp-photo-wall{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:8px}
    .gp-lb-stage{padding:52px 12px 6px}
    .gp-lb-nav{width:42px;height:42px;font-size:17px}
    .gp-lb-caption{font-size:13px}
}

/* =====================================================================
   NGHIÊN CỨU - Hướng nghiên cứu (2 cột) & Công bố khoa học
   ===================================================================== */

/* ------------------------- Bố cục 2 cột ------------------------- */
.gp-rs-layout{display:grid;grid-template-columns:320px minmax(0,1fr);gap:26px;align-items:start}

.gp-rs-side{
    background:#fff;border:1px solid var(--gp-line);border-radius:var(--gp-radius);
    overflow:hidden;box-shadow:var(--gp-shadow);position:sticky;top:100px;
}
.gp-rs-side-head{
    background:var(--gp-navy);color:#fff;font-weight:700;font-size:14px;
    text-transform:uppercase;letter-spacing:.3px;padding:13px 16px;
}
.gp-rs-list{list-style:none;margin:0;padding:0;max-height:calc(100vh - 220px);overflow-y:auto}
.gp-rs-list li{border-bottom:1px solid var(--gp-line)}
.gp-rs-list li:last-child{border-bottom:none}

.gp-rs-item{
    display:flex;align-items:flex-start;gap:11px;padding:13px 15px;
    color:var(--gp-text);font-size:14.5px;line-height:1.5;transition:.2s;
}
.gp-rs-item:hover{background:var(--gp-blue-soft);color:var(--gp-navy)}
.gp-rs-item.active{background:var(--gp-blue-soft);color:var(--gp-navy);font-weight:600;
    box-shadow:inset 4px 0 0 var(--gp-navy)}
.gp-rs-num{
    flex:0 0 24px;width:24px;height:24px;border-radius:50%;display:grid;place-items:center;
    background:var(--gp-blue-soft);color:var(--gp-navy);font-size:12px;font-weight:700;margin-top:1px;
}
.gp-rs-item.active .gp-rs-num{background:var(--gp-navy);color:#fff}
.gp-rs-text{flex:1;min-width:0}
.gp-rs-item>i{font-size:10px;color:#c2ccdd;margin-top:6px}
.gp-rs-item.active>i{color:var(--gp-navy)}

/* ------------------------- Cột nội dung ------------------------- */
.gp-rs-main{
    background:#fff;border:1px solid var(--gp-line);border-radius:var(--gp-radius);
    padding:26px 28px;min-height:320px;position:relative;box-shadow:0 2px 10px rgba(27,62,140,.05);
}
.gp-rs-loading{
    display:none;position:absolute;inset:0;z-index:3;background:rgba(255,255,255,.88);
    align-items:center;justify-content:center;gap:11px;color:var(--gp-navy);font-weight:600;
    border-radius:var(--gp-radius);
}
.gp-rs-loading.is-on{display:flex}
.gp-rs-loading i{font-size:22px}

.gp-rs-title{
    font-size:23px;font-weight:800;color:var(--gp-navy);margin:0 0 12px;line-height:1.35;
    padding-bottom:12px;border-bottom:2px solid var(--gp-blue-soft);
}
.gp-rs-meta{display:flex;flex-wrap:wrap;gap:18px;font-size:13.5px;color:var(--gp-muted);margin-bottom:16px}
.gp-rs-meta i{color:var(--gp-blue);margin-right:5px}
.gp-rs-body{animation:gpFadeIn .25s ease}
@keyframes gpFadeIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}

/* ------------------------- Công bố khoa học ------------------------- */
.gp-pub-group{margin-bottom:34px}
.gp-pub-year{
    display:flex;align-items:center;gap:12px;flex-wrap:wrap;
    font-size:22px;font-weight:800;color:var(--gp-navy);margin:0 0 14px;
    padding:11px 18px;background:var(--gp-blue-soft);border-left:5px solid var(--gp-navy);
    border-radius:0 8px 8px 0;
}
.gp-pub-year span{
    font-size:12.5px;font-weight:600;color:#fff;background:var(--gp-blue);
    padding:3px 12px;border-radius:30px;text-transform:none;
}

.gp-pub-table{width:100%;border-collapse:collapse;background:#fff;font-size:14.5px}
.gp-pub-table thead th{
    background:var(--gp-navy);color:#fff;font-size:13px;font-weight:700;text-transform:uppercase;
    letter-spacing:.3px;padding:11px 14px;text-align:left;border:1px solid var(--gp-navy);
}
.gp-pub-table tbody td{border:1px solid var(--gp-line);padding:13px 14px;vertical-align:top}
.gp-pub-table tbody tr:nth-child(even){background:#FAFCFF}
.gp-pub-table tbody tr:hover{background:var(--gp-blue-soft)}
.gp-pub-stt{text-align:center;font-weight:700;color:var(--gp-navy);width:64px}

/* author_text và name là HTML từ trình soạn thảo */
.gp-pub-cell{line-height:1.6;word-break:break-word}
.gp-pub-cell p{margin:0 0 4px}
.gp-pub-cell p:last-child{margin-bottom:0}
.gp-pub-cell strong{color:var(--gp-navy)}
.gp-pub-cell--name{margin-top:6px;font-weight:600;color:var(--gp-text)}
.gp-pub-cell--name p{margin:0}

.gp-pub-src{margin-top:6px;font-size:13.5px;color:var(--gp-muted);font-style:italic}
.gp-pub-tags{margin-top:8px;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.gp-pub-tag{
    display:inline-block;font-size:12px;font-weight:600;color:var(--gp-navy);
    background:var(--gp-blue-soft);padding:3px 11px;border-radius:20px;
}
.gp-pub-link{font-size:13px;font-weight:600;color:var(--gp-blue)}
.gp-pub-link i{font-size:11px;margin-right:4px}

/* ------------------------- Responsive ------------------------- */
@media (max-width:991.98px){
    .gp-rs-layout{grid-template-columns:1fr;gap:18px}
    .gp-rs-side{position:static}
    .gp-rs-list{max-height:340px}
    .gp-rs-main{padding:20px}
    .gp-rs-title{font-size:19px}
}
@media (max-width:767.98px){
    .gp-pub-year{font-size:18px;padding:9px 14px}
    .gp-pub-table thead{display:none}
    .gp-pub-table,.gp-pub-table tbody,.gp-pub-table tr,.gp-pub-table td{display:block;width:100%}
    .gp-pub-table tr{
        border:1px solid var(--gp-line);border-radius:var(--gp-radius);
        margin-bottom:12px;background:#fff;overflow:hidden;
    }
    .gp-pub-table tbody td{border:none;padding:12px 14px}
    .gp-pub-stt{
        background:var(--gp-navy);color:#fff;text-align:left;width:auto;
        font-size:13px;padding:7px 14px !important;
    }
    .gp-pub-stt:before{content:"STT ";font-weight:600}
}

/* Nội dung riêng của loại bài viết (article_type.content) */
.gp-type-content{
    background:#fff;border:1px solid var(--gp-line);border-left:4px solid var(--gp-navy);
    border-radius:0 var(--gp-radius) var(--gp-radius) 0;
    padding:20px 24px;margin-bottom:28px;box-shadow:0 2px 10px rgba(27,62,140,.05);
}
.gp-type-content > :first-child{margin-top:0}
.gp-type-content > :last-child{margin-bottom:0}
@media (max-width:767.98px){
    .gp-type-content{padding:16px 18px}
}

/* =====================================================================
   ĐÀO TẠO - cây danh mục nhiều cấp + nội dung
   ===================================================================== */
.gp-tr-layout{display:grid;grid-template-columns:300px minmax(0,1fr);gap:26px;align-items:start}

/* ------------------------- Cây điều hướng ------------------------- */
.gp-tr-side{
    background:#fff;border:1px solid var(--gp-line);border-radius:var(--gp-radius);
    overflow:hidden;box-shadow:var(--gp-shadow);position:sticky;top:100px;
}
.gp-tr-side-head{
    background:var(--gp-navy);color:#fff;font-weight:700;font-size:13.5px;
    text-transform:uppercase;letter-spacing:.3px;padding:13px 16px;
}

.gp-tr-nav{list-style:none;margin:0;padding:0}
.gp-tr-nav li{border-bottom:1px solid var(--gp-line)}
.gp-tr-nav li:last-child{border-bottom:none}
.gp-tr-nav a{
    display:flex;align-items:center;justify-content:space-between;gap:9px;
    padding:11px 15px;color:var(--gp-text);font-size:14.5px;line-height:1.45;transition:.2s;
}
.gp-tr-nav a:hover{background:var(--gp-blue-soft);color:var(--gp-navy)}
.gp-tr-nav a.active{
    background:var(--gp-blue-soft);color:var(--gp-navy);font-weight:700;
    box-shadow:inset 4px 0 0 var(--gp-navy);
}
.gp-tr-parent{
    display:flex;align-items:center;justify-content:space-between;gap:9px;width:100%;
    padding:11px 15px;border:none;background:none;text-align:left;
    color:var(--gp-navy);font-size:14.5px;font-weight:600;line-height:1.45;transition:.2s;
}
.gp-tr-parent:hover{background:var(--gp-blue-soft)}
.gp-tr-parent.in-path{background:var(--gp-blue-soft)}
.gp-tr-nav a>i,.gp-tr-parent>i{font-size:10px;color:#c2ccdd;transition:transform .25s}
.gp-tr-nav li.is-open>a>i,
.gp-tr-nav li.is-open>.gp-tr-parent>i{transform:rotate(180deg);color:var(--gp-navy)}

/* Cấp con: ẩn, chỉ mở khi nhánh đang được chọn */
.gp-tr-nav-sub{display:none;background:#FAFCFF;border-top:1px solid var(--gp-line)}
.gp-tr-nav li.is-open>.gp-tr-nav-sub{display:block}
.gp-tr-nav-sub a,.gp-tr-nav-sub .gp-tr-parent{padding-left:30px;font-size:14px}
.gp-tr-nav-sub .gp-tr-nav-sub a,
.gp-tr-nav-sub .gp-tr-nav-sub .gp-tr-parent{padding-left:46px;font-size:13.5px}
.gp-tr-nav-sub .gp-tr-nav-sub .gp-tr-nav-sub a{padding-left:62px;font-size:13px}
.gp-tr-nav-sub li{border-bottom:1px dashed var(--gp-line)}

/* ------------------------- Nội dung ------------------------- */
.gp-tr-main{
    background:#fff;border:1px solid var(--gp-line);border-radius:var(--gp-radius);
    padding:26px 28px;min-height:320px;box-shadow:0 2px 10px rgba(27,62,140,.05);
}
.gp-tr-title{
    font-size:23px;font-weight:800;color:var(--gp-navy);margin:0 0 16px;line-height:1.35;
    padding-bottom:12px;border-bottom:2px solid var(--gp-blue-soft);
}

/* ------------------------- Thẻ mục con ------------------------- */
.gp-tr-cards{display:grid;gap:14px;grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}
.gp-tr-card{
    display:flex;align-items:flex-start;gap:13px;padding:16px;
    background:#FAFCFF;border:1px solid var(--gp-line);border-radius:var(--gp-radius);transition:.22s;
}
.gp-tr-card:hover{
    background:#fff;border-color:var(--gp-blue);transform:translateY(-3px);box-shadow:var(--gp-shadow);
}
.gp-tr-card-ico{
    flex:0 0 42px;width:42px;height:42px;border-radius:11px;display:grid;place-items:center;
    background:var(--gp-navy);color:#fff;font-size:17px;
}
.gp-tr-card-body{flex:1;min-width:0}
.gp-tr-card-name{display:block;font-weight:700;color:var(--gp-navy);font-size:15px;line-height:1.4}
.gp-tr-card:hover .gp-tr-card-name{color:var(--gp-blue)}
.gp-tr-card-desc{display:block;margin-top:5px;font-size:13.5px;color:var(--gp-muted);line-height:1.55}
.gp-tr-card-count{
    display:inline-block;margin-top:7px;font-size:11.5px;font-weight:600;color:var(--gp-navy);
    background:var(--gp-blue-soft);padding:2px 10px;border-radius:20px;
}
.gp-tr-card>i{color:#c2ccdd;margin-top:12px;transition:transform .2s}
.gp-tr-card:hover>i{color:var(--gp-blue);transform:translateX(4px)}

@media (max-width:991.98px){
    .gp-tr-layout{grid-template-columns:1fr;gap:18px}
    .gp-tr-side{position:static}
    .gp-tr-main{padding:20px}
    .gp-tr-title{font-size:19px}
}
.gp-bc-parent{color:rgba(255,255,255,.75)}

/* =====================================================================
   BÀI VIẾT NHỎ (giao diện ngoài) - các dòng nền xám / trắng xen kẽ
   ===================================================================== */
.gp-lines{border:1px solid var(--gp-line);border-radius:var(--gp-radius);overflow:hidden}
.gp-line{display:flex;gap:16px;padding:16px 20px;align-items:flex-start}
.gp-line:nth-child(odd){background:#F4F6FA}     /* dòng lẻ: nền xám */
.gp-line:nth-child(even){background:#fff}       /* dòng chẵn: nền trắng */
.gp-line + .gp-line{border-top:1px solid var(--gp-line)}
.gp-line:hover{background:var(--gp-blue-soft)}

.gp-line-no{
    flex:0 0 30px;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;
    background:var(--gp-navy);color:#fff;font-size:12.5px;font-weight:700;margin-top:2px;
}
.gp-line-body{flex:1;min-width:0}
.gp-line-name{font-size:16px;font-weight:700;color:var(--gp-navy);margin:0 0 6px;line-height:1.45}
.gp-line-body .gp-rte{font-size:15px;line-height:1.7}
.gp-line-body .gp-rte>:first-child{margin-top:0}
.gp-line-body .gp-rte>:last-child{margin-bottom:0}

.gp-line-name a{color:inherit}
.gp-line-name a:hover{color:var(--gp-blue)}
.gp-line-desc{font-size:14.5px;line-height:1.65;color:var(--gp-text-muted, #5b6577)}

.gp-line-links{margin-top:9px;display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.gp-line-date{font-size:13px;color:#8a94a8}
.gp-line-date i{font-size:12px;margin-right:5px}
.gp-line-links a{font-size:13.5px;font-weight:600;color:var(--gp-blue)}
.gp-line-links a i{font-size:12px;margin-right:5px}

@media (max-width:575.98px){
    .gp-line{padding:14px;gap:11px}
    .gp-line-no{flex:0 0 26px;width:26px;height:26px;font-size:11.5px}
    .gp-line-name{font-size:15px}
}

/* =====================================================================
   SINH VIÊN - lưới các mục: tên loại phía trên, ảnh đại diện bên dưới
   ===================================================================== */
.gp-stu-grid{
    display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
    gap:34px 30px;align-items:start;
}
.gp-stu-item{min-width:0}

.gp-stu-name{
    font-size:17px;font-weight:800;text-transform:uppercase;letter-spacing:.4px;
    color:var(--gp-navy);margin:0 0 12px;line-height:1.35;
}
.gp-stu-name a{color:inherit}
.gp-stu-name a:hover{color:var(--gp-blue)}

.gp-stu-thumb{
    display:block;border:1px solid var(--gp-line);border-radius:6px;overflow:hidden;
    background:#fff;transition:box-shadow .2s, transform .2s, border-color .2s;
}
.gp-stu-thumb img{
    display:block;width:100%;height:auto;aspect-ratio:4/3;object-fit:contain;background:#fff;
}
.gp-stu-thumb:hover{
    border-color:var(--gp-blue);box-shadow:0 8px 22px rgba(16,42,94,.14);transform:translateY(-3px);
}
.gp-stu-noimg{
    display:grid;place-items:center;aspect-ratio:4/3;background:#F4F6FA;color:#c2cbd9;font-size:34px;
}

@media (max-width:991.98px){
    .gp-stu-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px 22px}
    .gp-stu-name{font-size:16px}
}
@media (max-width:575.98px){
    .gp-stu-grid{grid-template-columns:1fr;gap:22px}
}

/* =====================================================================
   TRANG LIÊN HỆ - form gửi thư
   ===================================================================== */
.gp-contact-form{
    background:#fff;border:1px solid var(--gp-line);border-radius:var(--gp-radius);
    padding:26px 28px;height:100%;
}
.gp-label{
    display:block;font-size:13.5px;font-weight:600;color:var(--gp-navy);margin-bottom:6px;
}
.gp-label .req{color:#d93025}

.gp-input{
    width:100%;border:1px solid var(--gp-line);border-radius:6px;
    padding:10px 13px;font-size:15px;color:var(--gp-text);background:#fff;
    transition:border-color .15s, box-shadow .15s;
}
.gp-input:focus{
    outline:0;border-color:var(--gp-blue);box-shadow:0 0 0 3px rgba(30,136,229,.14);
}
.gp-input.is-invalid{border-color:#d93025;background:#fffafa}
textarea.gp-input{resize:vertical;min-height:130px;line-height:1.6}

.gp-err{
    display:none;margin-top:5px;font-size:13px;color:#d93025;
}
.gp-err:not(:empty){display:block}

/* Bẫy bot - ẩn khỏi mắt người dùng nhưng không dùng display:none */
.gp-hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

.gp-alert{
    display:flex;align-items:flex-start;gap:10px;
    padding:13px 16px;border-radius:8px;margin-bottom:18px;font-size:14.5px;line-height:1.6;
}
.gp-alert i{font-size:17px;margin-top:1px}
.gp-alert--ok {background:#e7f6ec;color:#1b6b39;border:1px solid #bfe5cc}
.gp-alert--err{background:#fdecea;color:#a4271c;border:1px solid #f5c6c2}
.gp-alert.d-none{display:none}

#gpContactSubmit[disabled]{opacity:.65;cursor:progress}

@media (max-width:575.98px){
    .gp-contact-form{padding:20px 18px}
}

/* =====================================================================
   LỊCH CÔNG TÁC - FullCalendar
   ===================================================================== */
.gp-cal-head{
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
    gap:14px;margin-bottom:18px;
}
.gp-cal-legend{display:flex;flex-wrap:wrap;gap:16px}
.gp-cal-legend span{display:inline-flex;align-items:center;gap:7px;font-size:13.5px;color:var(--gp-text-muted,#5b6577)}
.gp-cal-legend i{width:13px;height:13px;border-radius:3px;display:inline-block}

.gp-cal-box{
    background:#fff;border:1px solid var(--gp-line);border-radius:var(--gp-radius);
    padding:18px 20px 22px;
}

/* Ghi đè nhẹ giao diện mặc định của FullCalendar cho khớp bộ màu GEOPET */
.gp-cal-box .fc{--fc-border-color:var(--gp-line);--fc-today-bg-color:#eef4fd;font-size:14.5px}
.gp-cal-box .fc .fc-toolbar-title{font-size:20px;font-weight:800;color:var(--gp-navy)}
.gp-cal-box .fc .fc-button{
    background:#fff;border:1px solid var(--gp-line);color:var(--gp-navy);
    font-size:13.5px;font-weight:600;padding:6px 13px;box-shadow:none;text-transform:none;
}
.gp-cal-box .fc .fc-button:hover{background:var(--gp-blue-soft);border-color:var(--gp-blue)}
.gp-cal-box .fc .fc-button-primary:not(:disabled).fc-button-active,
.gp-cal-box .fc .fc-button-primary:not(:disabled):active{
    background:var(--gp-navy);border-color:var(--gp-navy);color:#fff;
}
.gp-cal-box .fc .fc-button-primary:disabled{background:#f1f4f9;border-color:var(--gp-line);color:#9aa4b8}
.gp-cal-box .fc .fc-col-header-cell-cushion{
    padding:9px 4px;font-size:13px;font-weight:700;color:var(--gp-navy);text-transform:uppercase;
}
.gp-cal-box .fc .fc-daygrid-day-number{font-size:13.5px;color:var(--gp-text);padding:6px 8px}
.gp-cal-box .fc-event{border-radius:4px;font-size:12.5px;padding:1px 3px;cursor:pointer}
.gp-cal-box .fc-event:hover{filter:brightness(1.08)}
.gp-cal-box .fc-list-event:hover td{background:var(--gp-blue-soft)}
.gp-cal-box .fc .fc-list-day-cushion{background:#f4f6fa}

/* Hộp thoại chi tiết */
#gpCalModal .modal-title{color:var(--gp-navy);font-weight:800;font-size:18px;line-height:1.4}
.gp-cal-meta{
    display:flex;flex-wrap:wrap;align-items:center;gap:12px;
    padding-bottom:13px;margin-bottom:14px;border-bottom:1px solid var(--gp-line);
}
.gp-cal-time{font-size:14px;color:var(--gp-text-muted,#5b6577)}
.gp-cal-time i{color:var(--gp-blue);margin-right:5px}
.gp-cal-time em{font-style:normal;font-weight:600;color:var(--gp-navy)}
.gp-cal-status{
    margin-left:auto;font-size:12.5px;font-weight:700;color:#fff;
    padding:3px 11px;border-radius:20px;background:#1e88e5;
}
.gp-cal-status.is-read{background:#f9a825}
.gp-cal-status.is-finish{background:#43a047}
.gp-cal-content{font-size:15px;line-height:1.75}

@media (max-width:767.98px){
    .gp-cal-box{padding:12px 12px 16px}
    .gp-cal-box .fc .fc-toolbar{flex-direction:column;gap:10px}
    .gp-cal-box .fc .fc-toolbar-title{font-size:17px}
}