/* ==========================================================================
   Cổng thông tin điện tử Trường THPT Giả Định
   Bảng màu: xanh trường #0B3D91 · liên kết #1E63C5 · vàng #F2B01E
   ========================================================================== */

:root{
  --navy:#0B3D91;
  --navy-dark:#082E6E;
  --blue:#1E63C5;
  --gold:#F2B01E;
  --red:#C8102E;
  --band:#EEF3FB;
  --bg:#F4F6FA;
  --panel:#FFFFFF;
  --border:#D6DEE9;
  --text:#1F1F1F;
  --muted:#5F5F5F;
  --serif:"Noto Serif","Times New Roman",Times,serif;
  --sans:"Noto Sans",Arial,Tahoma,Helvetica,sans-serif;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--sans);font-size:15px;line-height:1.62;
}
img,svg{max-width:100%}
a{color:var(--blue);text-decoration:none}
a:hover,a:focus{text-decoration:underline}
a:focus-visible{outline:2px solid var(--gold);outline-offset:2px}
p{margin:0 0 .85em}
.container{max-width:1180px;margin:0 auto;padding:0 14px}

.skiplink{position:absolute;left:-9999px;top:0;background:var(--gold);color:#000;padding:8px 14px;z-index:50}
.skiplink:focus{left:0}

/* ---------- Thanh trên cùng ---------- */
.topbar{background:var(--navy);color:#fff;font-size:12.5px}
.topbar-in{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;min-height:32px}
.today{margin:0;color:#E8EFFA}
.topbar-links{list-style:none;display:flex;gap:16px;margin:0;padding:0}
.topbar-links a{color:#F7D68B}
.topbar-links a:hover{color:#fff}

/* ---------- Masthead ---------- */
.masthead{background:linear-gradient(180deg,#FFFFFF 0%,var(--band) 100%);border-bottom:3px solid var(--gold)}
.masthead-in{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px 14px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:16px;color:inherit;text-decoration:none;flex:1 1 460px}
.brand:hover{text-decoration:none}
.crest{flex:none;display:block}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-so{font-size:12.5px;letter-spacing:.9px;color:var(--muted);text-transform:uppercase}
.brand-name{font-family:var(--serif);font-size:31px;font-weight:700;color:var(--navy);letter-spacing:.6px;margin:2px 0 3px}
.brand-motto{font-size:13.5px;font-style:italic;color:#8A6A12}
.masthead-aside{flex:0 1 300px;text-align:right}
.search{display:flex;gap:0;justify-content:flex-end}
.search label{position:absolute;left:-9999px}
.search input{border:1px solid var(--border);border-right:0;border-radius:2px 0 0 2px;padding:6px 10px;font:inherit;font-size:13px;width:180px;background:#fff}
.search button{border:0;background:var(--navy);color:#fff;padding:6px 14px;border-radius:0 2px 2px 0;font:inherit;font-size:13px;cursor:pointer}
.search button:hover{background:var(--blue)}
.masthead-contact{margin:.6em 0 0;font-size:12.5px;color:var(--muted)}

/* ---------- Menu chính ---------- */
.mainnav{background:var(--navy);border-bottom:3px solid var(--gold)}
.mainnav-list{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap}
.mainnav-list>li{position:relative}
.mainnav-list>li>a{
  display:block;color:#fff;font-size:12.6px;font-weight:600;letter-spacing:.6px;
  text-transform:uppercase;padding:11px 13px;border-right:1px solid rgba(255,255,255,.14);
}
.mainnav-list>li>a:hover,.mainnav-list>li>a:focus{background:#0A3379;color:var(--gold);text-decoration:none}
.mainnav-list>li:first-child>a{background:var(--gold);color:#0A2A5E}
.mainnav-list>li:first-child>a:hover{background:#E0A00F;color:#0A2A5E}
.mainnav-list>li.active>a{background:#0A3379;color:var(--gold);box-shadow:inset 0 -3px 0 var(--gold)}
.mainnav-list>li.has-sub>a::after{content:" ▾";font-size:10px;opacity:.85}
.subnav{
  list-style:none;margin:0;padding:6px 0;position:absolute;left:0;top:100%;z-index:30;
  min-width:236px;background:#fff;border:1px solid var(--border);border-top:3px solid var(--gold);
  box-shadow:0 6px 16px rgba(11,61,145,.18);display:none;
}
.mainnav-list>li:hover>.subnav,.mainnav-list>li:focus-within>.subnav{display:block}
.subnav a{display:block;padding:7px 14px;color:var(--navy);font-size:13.5px}
.subnav a:hover{background:var(--band);text-decoration:none}

/* ---------- Banner ---------- */
.banner{margin:14px 0 0;border:1px solid var(--border);background:#fff;padding:0}
.banner-img{display:block;width:100%;height:auto;max-height:290px}
.banner figcaption{font-size:12.5px;color:var(--muted);padding:7px 12px;background:var(--band);border-top:1px solid var(--border)}

/* ---------- Bố cục ---------- */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 306px;gap:22px;margin:16px 0 28px;align-items:start}
main{min-width:0}

/* ---------- Tiêu đề mục ---------- */
.section-heading{
  font-size:17px;margin:0 0 12px;color:var(--navy);text-transform:uppercase;letter-spacing:.4px;
  border-bottom:2px solid var(--border);display:flex;justify-content:space-between;align-items:flex-end;gap:10px;
}
.section-heading>span{background:var(--navy);color:#fff;padding:6px 14px;display:inline-block;border-radius:2px 2px 0 0}
.section-more{font-size:12.5px;text-transform:none;font-weight:400;letter-spacing:0;padding-bottom:4px}

/* ---------- Ảnh minh hoạ ---------- */
.thumb{position:relative;border:1px solid var(--border);background:var(--band);overflow:hidden}
.thumb svg{display:block;width:100%;height:100%}
.thumb-cap{
  position:absolute;left:0;bottom:0;background:rgba(11,61,145,.78);color:#fff;
  font-size:10.5px;letter-spacing:.5px;padding:2px 7px;text-transform:uppercase;
}

/* ---------- Tin nổi bật ---------- */
.home-lead{margin-bottom:22px}
.lead-card{display:grid;grid-template-columns:340px minmax(0,1fr);gap:18px;background:var(--panel);border:1px solid var(--border);padding:14px}
.lead-thumb{display:block}
.lead-body h2{margin:0 0 6px;font-size:22px;line-height:1.3;font-family:var(--serif)}
.lead-body h2 a{color:var(--navy)}
.lead-sum{color:#333}
.meta{font-size:12.5px;color:var(--muted);margin:0 0 8px}
.meta .cat{color:var(--blue)}
.more a{font-weight:600}

/* ---------- Lưới tin ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.news-card{background:var(--panel);border:1px solid var(--border);padding:10px;display:flex;flex-direction:column}
.news-card h3{margin:9px 0 4px;font-size:15px;line-height:1.35}
.news-card h3 a{color:var(--navy)}
.news-sum{font-size:13.4px;color:#3B3B3B;margin:0}
.home-news{margin-bottom:22px}

/* ---------- Hai cột: thông báo + lịch tuần ---------- */
.home-cols{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:22px;margin-bottom:22px}
.notice-list{list-style:none;margin:0;padding:0;background:var(--panel);border:1px solid var(--border)}
.notice-list li{display:flex;gap:9px;align-items:baseline;flex-wrap:wrap;padding:9px 12px;border-bottom:1px dotted var(--border)}
.notice-list li:last-child{border-bottom:0}
.notice-list li::before{content:"■";color:var(--gold);font-size:9px;line-height:1.9}
.notice-list time{font-size:12.5px;color:var(--muted);white-space:nowrap}
.notice-list a{flex:1 1 240px;color:#14335F;font-size:14px}
.badge-new{
  background:var(--red);color:#fff;font-size:10.5px;font-weight:700;text-transform:uppercase;
  padding:1px 6px;border-radius:2px;letter-spacing:.6px;vertical-align:middle;
}
.lich-box{background:var(--panel);border:1px solid var(--border);padding:12px}
.lich-tuan{font-weight:700;color:var(--navy);margin:0 0 8px;font-size:14px}

/* ---------- Bảng ---------- */
.table-wrap{overflow-x:auto}
table{border-collapse:collapse;width:100%;font-size:13.6px;background:var(--panel)}
caption{text-align:left;font-size:12.5px;color:var(--muted);padding:0 0 6px}
th,td{border:1px solid var(--border);padding:7px 9px;vertical-align:top;text-align:left}
thead th{background:var(--navy);color:#fff;font-weight:600;white-space:nowrap}
tbody th{background:var(--band);color:var(--navy);font-weight:600;white-space:nowrap}
tbody tr:nth-child(even) td{background:#FAFBFD}
.vb-table .vb-so{white-space:nowrap;font-weight:600;color:var(--navy)}
.vb-table .vb-ngay{white-space:nowrap}
.vb-table .vb-tai{white-space:nowrap;text-align:center}
.vb-loai{display:inline-block;background:var(--band);border:1px solid var(--border);color:var(--navy);font-size:11.5px;padding:0 6px;border-radius:2px;margin-right:4px}
.vb-chua{color:var(--muted);font-style:italic;font-size:12.5px}
.dl{display:inline-flex;align-items:center;gap:5px;font-weight:600;color:#A8181F}
.dl-ico{display:inline-block;background:#A8181F;color:#fff;width:17px;height:17px;line-height:17px;text-align:center;border-radius:2px;font-size:12px}

/* ---------- Cột phải ---------- */
.sidebar{display:flex;flex-direction:column;gap:16px}
.widget{background:var(--panel);border:1px solid var(--border)}
.widget-title{
  margin:0;font-size:13.5px;text-transform:uppercase;letter-spacing:.5px;color:#fff;
  background:var(--navy);padding:8px 12px;border-bottom:3px solid var(--gold);
}
.widget>ul,.widget>p,.widget>.widget-more{margin:0}
.bgh-list{list-style:none;margin:0;padding:8px 12px}
.bgh-list li{padding:6px 0;border-bottom:1px dotted var(--border)}
.bgh-list li:last-child{border-bottom:0}
.bgh-list strong{display:block;color:var(--navy);font-size:14px}
.bgh-list span{font-size:12.6px;color:var(--muted)}
.quicklinks{list-style:none;margin:0;padding:8px 12px}
.quicklinks li{border-bottom:1px dotted var(--border)}
.quicklinks li:last-child{border-bottom:0}
.quicklinks a{display:flex;align-items:center;gap:9px;padding:7px 0;font-size:13.6px;color:#14335F}
.ql-ico{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;background:var(--band);border:1px solid var(--border);color:var(--navy);border-radius:2px;font-size:12px}
.vb-list,.tb-list{list-style:none;margin:0;padding:8px 12px}
.vb-list li,.tb-list li{padding:7px 0;border-bottom:1px dotted var(--border)}
.vb-list li:last-child,.tb-list li:last-child{border-bottom:0}
.vb-list a,.tb-list a{font-size:13.4px;color:#14335F;display:block}
.vb-meta{display:block;font-size:11.8px;color:var(--muted);margin-top:2px}
.tb-list time{display:block;font-size:11.8px;color:var(--muted)}
.widget-more{padding:8px 12px;background:var(--band);border-top:1px solid var(--border);font-size:12.6px;margin:0}
.stat-list{list-style:none;margin:0;padding:8px 12px}
.stat-list li{display:flex;justify-content:space-between;gap:10px;padding:5px 0;border-bottom:1px dotted var(--border);font-size:13.3px}
.stat-list li:last-child{border-bottom:0}
.stat-list strong{color:var(--navy);font-family:var(--serif)}

/* ---------- Trang nội dung ---------- */
.breadcrumb{font-size:12.6px;color:var(--muted);margin:0 0 12px}
.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:0}
.breadcrumb li+li::before{content:"›";margin-right:6px;color:var(--border)}
.page{background:var(--panel);border:1px solid var(--border);padding:20px 22px 24px}
.page-head h1{
  font-family:var(--serif);font-size:26px;line-height:1.28;color:var(--navy);
  margin:0 0 8px;padding-bottom:10px;border-bottom:2px solid var(--gold);
}
.lede{font-size:15.5px;color:#33475F;font-weight:600;margin:10px 0 4px}
.prose{font-size:15px}
.prose h2{font-family:var(--serif);font-size:20px;color:var(--navy);margin:1.5em 0 .5em;padding-left:11px;border-left:4px solid var(--gold)}
.prose h3{font-size:16.5px;color:#14335F;margin:1.3em 0 .4em}
.prose ul,.prose ol{padding-left:22px;margin:0 0 1em}
.prose li{margin:.24em 0}
.prose blockquote{margin:1em 0;padding:8px 14px;background:var(--band);border-left:4px solid var(--navy);color:#26405F}
.prose table{margin:1em 0}
.prose hr{border:0;border-top:1px solid var(--border);margin:1.6em 0}
.prose code{background:var(--band);padding:1px 5px;border-radius:2px;font-size:.92em}
.prose figure{margin:1.2em 0}
.page-foot{margin-top:26px;border-top:1px solid var(--border);padding-top:14px}
.page-foot h2{font-size:15px;text-transform:uppercase;color:var(--navy);margin:0 0 8px}
.rel-list{list-style:none;margin:0;padding:0}
.rel-list li{padding:5px 0;border-bottom:1px dotted var(--border);font-size:14px}
.rel-list time{color:var(--muted);font-size:12.5px;margin-right:8px}

/* ---------- Khối văn bản đính kèm ---------- */
.doc-card{display:flex;gap:13px;align-items:flex-start;background:var(--band);border:1px solid var(--border);border-left:4px solid var(--navy);padding:12px 14px;margin:1.2em 0}
.doc-ico{flex:none;background:#A8181F;color:#fff;font-size:11.5px;font-weight:700;letter-spacing:.5px;padding:6px 8px;border-radius:2px}
.doc-body{min-width:0}
.doc-title{margin:0 0 4px;font-size:15px;font-weight:700}
.doc-meta{margin:0 0 6px;font-size:12.6px;color:var(--muted)}
.doc-dl{margin:0;font-size:13.4px}
.doc-dl code{background:#fff}

.note{background:#FFF9E8;border:1px solid #EBD79A;border-left:4px solid var(--gold);padding:12px 14px;margin:1.2em 0}
.note-title{margin:0 0 6px;font-weight:700;color:#7A5A05}
.note>p:last-child{margin-bottom:0}
.note-canhbao{background:#FDF0F0;border-color:#EFC0C0;border-left-color:var(--red)}
.note-canhbao .note-title{color:#8E1A16}

/* ---------- Danh sách bài ---------- */
.archive-list{list-style:none;margin:14px 0 0;padding:0}
.archive-list li{display:grid;grid-template-columns:96px minmax(0,1fr);gap:14px;padding:13px 0;border-bottom:1px dotted var(--border)}
.archive-list time{font-size:12.6px;color:var(--muted)}
.archive-list h2{margin:0 0 4px;font-size:16.5px;line-height:1.35}
.archive-list h2 a{color:var(--navy)}
.archive-list p{margin:0;font-size:13.8px;color:#3B3B3B}
.child-list{list-style:none;margin:12px 0 0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.child-list li{border:1px solid var(--border);border-top:3px solid var(--navy);padding:11px 13px;background:#FCFDFE}
.child-list h3{margin:0 0 4px;font-size:15.5px}
.child-list p{margin:0;font-size:13.4px;color:var(--muted)}

/* ---------- Chân trang ---------- */
.sitefooter{background:var(--navy);color:#E6EDF8;margin-top:10px;border-top:4px solid var(--gold);font-size:13.4px}
.footer-grid{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr) auto;gap:24px;padding-top:22px;padding-bottom:24px}
.footer-org{margin:0;font-size:12.5px;letter-spacing:.7px;color:#BFD2EE;text-transform:uppercase}
.footer-name{margin:2px 0 8px;font-family:var(--serif);font-size:20px;font-weight:700;color:var(--gold)}
.sitefooter address{font-style:normal;margin:0 0 8px;line-height:1.7}
.sitefooter a{color:#F7D68B}
.footer-resp{margin:0 0 6px;font-weight:600;color:#fff}
.footer-copy{margin:0;font-size:12.4px;color:#BFD2EE}
.footer-nav h2{font-size:13px;text-transform:uppercase;letter-spacing:.6px;color:var(--gold);margin:0 0 8px}
.footer-nav ul{list-style:none;margin:0;padding:0}
.footer-nav li{padding:3px 0}
.footer-crest{opacity:.95}

/* ---------- Đáp ứng ---------- */
@media (max-width:1000px){
  .layout{grid-template-columns:1fr}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .home-cols{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-crest{display:none}
}
@media (max-width:720px){
  .lead-card{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .child-list{grid-template-columns:1fr}
  .brand-name{font-size:23px}
  .masthead-aside{flex:1 1 100%;text-align:left}
  .search{justify-content:flex-start}
  .archive-list li{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .mainnav-list>li>a{padding:9px 10px;font-size:12px}
  .subnav{position:static;display:block;box-shadow:none;border:0;background:transparent;padding:0}
  .subnav a{color:#DCE7F7;padding:6px 26px;font-size:12.6px}
  .subnav a:hover{background:#0A3379}
}
@media print{
  .mainnav,.sidebar,.topbar,.banner,.footer-nav,.search{display:none}
  .layout{grid-template-columns:1fr}
  body{background:#fff;font-size:12pt}
}