/* V6.5 - toàn màn hình và bố cục PDF/phiếu trả lời song song */
html.v65-exam-focus-root,html.v65-exam-focus-root body{height:100%;overflow:hidden}
body.v65-exam-focus{background:#eaf0ec;overscroll-behavior:none}
body.v65-exam-focus .sidebar,body.v65-exam-focus .topbar{display:none!important}
body.v65-exam-focus .shell{display:block!important;min-height:100dvh}
body.v65-exam-focus .main{width:100%;height:100dvh;min-width:0}
body.v65-exam-focus .content{max-width:none!important;margin:0!important;padding:0!important;height:100dvh;overflow:hidden}
body.v65-exam-focus .modal-wrap{z-index:3000}

.v65-start-body{text-align:center;padding-top:18px!important}
.v65-start-icon{width:62px;height:62px;margin:0 auto 12px;border-radius:50%;display:grid;place-items:center;background:#fff1d5;color:#8a5d00;font-size:28px}
.v65-start-body h3{font-family:'Playfair Display',serif;color:var(--forest-900);font-size:22px;margin:0 0 10px}
.v65-start-body>p{max-width:620px;margin:0 auto 15px;color:var(--muted);font-size:12px;line-height:1.65}
.v65-strict-warning{text-align:left;max-width:620px;margin:0 auto 15px;padding:14px 17px;border:1px solid #efc3c5;background:#fff2f2;border-radius:14px;color:#713036}
.v65-strict-warning b{display:block;margin-bottom:6px}.v65-strict-warning ul{margin:0;padding-left:19px;font-size:11px;line-height:1.7}
.v65-agree{max-width:620px;margin:13px auto 0;display:flex;align-items:flex-start;gap:9px;text-align:left;border:1px solid var(--line);background:#f7faf8;border-radius:12px;padding:12px;font-size:11px;cursor:pointer}
.v65-agree input{width:17px!important;height:17px!important;flex:0 0 17px;margin-top:1px;accent-color:var(--forest-700)}

.v65-exam-app{height:100dvh;display:flex;flex-direction:column;background:#eaf0ec;color:var(--forest-950)}
.v65-exam-toolbar{height:82px;flex:0 0 82px;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:11px 18px;background:linear-gradient(110deg,#062b20,#115d43);color:#fff;box-shadow:0 5px 24px rgba(3,35,25,.2);z-index:10}
.v65-exam-title{min-width:0}.v65-exam-title h2{font-family:'Playfair Display',serif;font-size:20px;line-height:1.15;margin:3px 0 2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.v65-exam-title p{margin:0;font-size:9px;color:rgba(255,255,255,.72)}
.v65-lock{font-size:8px;letter-spacing:1.2px;font-weight:800;color:#f5d986}
.v65-toolbar-right{display:flex;align-items:center;gap:12px}.v65-exam-toolbar .timer{position:static;background:#fff4f4;color:#b23a43;border:1px solid #f2c3c6;border-radius:12px;padding:10px 14px;font-size:15px;font-weight:800;white-space:nowrap}
.v65-mobile-switch{display:none;background:rgba(255,255,255,.13);padding:3px;border-radius:10px}.v65-mobile-switch button{border:0;background:transparent;color:#fff;border-radius:8px;padding:8px 11px;font-size:10px;font-weight:700}.v65-mobile-switch button.active{background:#fff;color:#0b513b}

.v65-split-workspace{flex:1;min-height:0;display:grid;grid-template-columns:minmax(0,58fr) minmax(390px,42fr);gap:10px;padding:10px}
.v65-pane{min-width:0;min-height:0;background:#fff;border:1px solid #d6e1db;border-radius:16px;overflow:hidden;box-shadow:0 8px 25px rgba(7,44,32,.07)}
.v65-pdf-pane{display:flex;flex-direction:column}.v65-pane-head{height:48px;flex:0 0 48px;display:flex;align-items:center;justify-content:space-between;padding:8px 13px;border-bottom:1px solid var(--line);background:#fbfcfb}.v65-pane-head strong{display:block;font-family:'Playfair Display',serif;font-size:14px}.v65-pane-head span:not(.tag){display:block;font-size:8px;color:var(--muted);margin-top:1px}.v65-pdf-pane iframe{width:100%;height:100%;min-height:0;flex:1;border:0;background:#e5ebe7}.v65-pdf-empty{height:100%;display:grid;place-content:center;text-align:center;color:var(--muted);gap:5px}
.v65-answer-pane{display:flex;flex-direction:column}.v65-answer-top{flex:0 0 auto;padding:12px;border-bottom:1px solid var(--line);background:#fbfcfb}.v65-answer-top>div:first-child{display:flex;align-items:baseline;justify-content:space-between;gap:10px}.v65-answer-top h3{font-family:'Playfair Display',serif;font-size:17px;margin:0}.v65-answer-top p{font-size:9px;color:var(--muted);margin:0}.v65-qgrid{grid-template-columns:repeat(10,minmax(26px,1fr));gap:5px;margin-top:9px}.v65-qgrid .qjump{min-height:29px;aspect-ratio:auto;border-radius:7px;font-size:8px}.v65-answer-actions{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:9px}.v65-answer-actions .btn{padding:8px 18px}.v65-answer-scroll{flex:1;min-height:0;overflow:auto;padding:12px;background:#f2f6f3;scroll-behavior:smooth}.v65-answer-scroll .pdf-answer-paper{display:grid;gap:12px}.v65-answer-scroll .pdf-answer-section{border-radius:13px}.v65-answer-scroll .pdf-answer-section>header{padding:10px 12px}.v65-answer-scroll .pdf-mcq-grid{grid-template-columns:repeat(2,minmax(0,1fr));padding:10px;gap:7px}.v65-answer-scroll .pdf-answer-row{padding:8px}.v65-answer-scroll .pdf-tf-list,.v65-answer-scroll .pdf-short-list,.v65-answer-scroll .pdf-group-list,.v65-answer-scroll .pdf-match-list{padding:10px}.v65-answer-scroll [id^="card-"]{scroll-margin-top:10px}

.v65-standard-exam{height:100dvh;overflow:auto;padding:12px}.v65-standard-exam .exam-head{top:0}
.v65-auto-submit-overlay{position:fixed;inset:0;z-index:99999;display:grid;place-items:center;background:rgba(3,28,21,.88);color:#fff;text-align:center;padding:20px}.v65-auto-submit-overlay>div{max-width:420px}.v65-auto-submit-overlay h2{font-family:'Playfair Display',serif;margin:15px 0 7px;font-size:26px}.v65-auto-submit-overlay p{margin:0 0 7px;color:#ffd6d8}.v65-auto-submit-overlay small{color:rgba(255,255,255,.68)}
.v65-spinner{display:block;width:46px;height:46px;margin:auto;border:4px solid rgba(255,255,255,.2);border-top-color:#e1bd5a;border-radius:50%;animation:v65spin .8s linear infinite}@keyframes v65spin{to{transform:rotate(360deg)}}

@media(max-width:1000px){
  .v65-split-workspace{grid-template-columns:minmax(0,55fr) minmax(360px,45fr)}
  .v65-qgrid{grid-template-columns:repeat(7,minmax(27px,1fr))}
  .v65-answer-scroll .pdf-mcq-grid{grid-template-columns:1fr}
}
@media(max-width:820px){
  .v65-exam-toolbar{height:76px;flex-basis:76px;padding:8px 10px}.v65-exam-title h2{font-size:16px;max-width:48vw}.v65-exam-title p{display:none}.v65-mobile-switch{display:none!important}.v65-exam-toolbar .timer{font-size:12px;padding:8px 9px}
  .v65-split-workspace{flex:1;min-height:0;display:grid;grid-template-columns:1fr;grid-template-rows:minmax(240px,48%) minmax(300px,52%);gap:8px;padding:7px;height:calc(100dvh - 76px)}
  .v65-pane{display:flex;min-height:0;height:auto}
  .v65-pdf-pane{min-height:240px}
  .v65-answer-pane{min-height:300px}
  .v65-answer-scroll .pdf-mcq-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:520px){
  .v65-exam-toolbar{height:74px;flex-basis:74px;padding:7px 8px}.v65-toolbar-right{gap:6px}.v65-exam-toolbar .timer{font-size:10px;padding:7px}
  .v65-exam-title h2{font-size:14px;max-width:52vw}.v65-lock{font-size:7px}
  .v65-split-workspace{grid-template-rows:minmax(210px,46%) minmax(320px,54%);height:calc(100dvh - 74px);padding:6px;gap:6px}
  .v65-pane-head{height:42px;flex-basis:42px;padding:6px 10px}.v65-pane-head strong{font-size:12px}.v65-pane-head span:not(.tag){font-size:7px}
  .v65-answer-top{padding:9px}.v65-answer-top h3{font-size:15px}.v65-qgrid{grid-template-columns:repeat(7,1fr)}.v65-qgrid .qjump{min-height:27px;font-size:8px}
  .v65-answer-scroll{padding:8px}.v65-answer-scroll .pdf-mcq-grid{grid-template-columns:1fr}.v65-answer-actions{gap:8px}.v65-answer-actions .sub{font-size:8px}.v65-answer-actions .btn{padding:8px 12px}
}


/* V6.5.7 - sửa chữ chồng nhau ở thẻ đề học sinh và lịch sử điểm */
.student-folder .exam-grid{grid-template-columns:repeat(auto-fit,minmax(310px,420px));align-items:start}
.v657-exam-card{min-width:0;overflow:hidden;display:flex;flex-direction:column}
.v657-exam-topline{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;flex-wrap:wrap}
.v657-official-tag{max-width:calc(100% - 58px);white-space:normal;text-align:center;line-height:1.35;overflow-wrap:anywhere}
.v657-exam-card h3,.v657-exam-card p,.v657-source-file{max-width:100%;overflow-wrap:anywhere;word-break:break-word}
.v657-exam-card h3{line-height:1.35;margin-bottom:8px}
.v657-exam-card p{margin:0 0 8px;min-height:0}
.v657-exam-meta{display:flex;align-items:center;flex-wrap:wrap;gap:7px 12px;line-height:1.45}
.v657-exam-meta span{white-space:nowrap}
.v657-source-file{line-height:1.5;margin:1px 0 10px}
.v657-start-btn{margin-top:2px;min-height:40px}
.v657-attempt-history{margin-top:13px;padding-top:12px;min-width:0}
.v657-history-title{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:4px}
.v657-history-title>strong{font-size:10px;color:var(--forest-850);text-transform:uppercase;letter-spacing:.45px}
.v657-history-title>span{font-size:9px;color:var(--muted);background:var(--mint);border-radius:999px;padding:4px 8px;white-space:nowrap}
.v657-attempt-row{display:grid!important;grid-template-columns:minmax(0,1fr) auto auto!important;align-items:center;gap:8px 10px!important;padding:10px 0!important}
.v657-attempt-info{min-width:0;display:flex;flex-direction:column;gap:2px}
.v657-attempt-info strong{font-size:11px;color:var(--forest-850)}
.v657-attempt-info span{font-size:8px;color:var(--muted);line-height:1.4;overflow-wrap:anywhere}
.v657-attempt-score{display:inline-flex;align-items:center;justify-content:center;min-width:61px;border-radius:999px;padding:6px 9px;font-size:11px;font-weight:800;white-space:nowrap}
.v657-attempt-score.official{background:#e2f3ea;color:#0a6849}
.v657-attempt-score.practice{background:#fff2d4;color:#8b6500}
.v657-attempt-row .btn{white-space:nowrap;min-width:88px}

@media(max-width:900px){
  .student-folder .exam-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
}
@media(max-width:640px){
  .student-folder .exam-grid{display:grid;grid-template-columns:minmax(0,1fr);padding:10px}
  .v657-exam-card{padding:15px}
  .v657-exam-topline{flex-wrap:nowrap}
  .v657-official-tag{font-size:8px;max-width:calc(100% - 54px)}
  .v657-attempt-row{grid-template-columns:minmax(0,1fr) auto!important}
  .v657-attempt-row .btn{grid-column:1/-1;width:100%;min-width:0}
}
@media(max-width:390px){
  .v657-exam-meta{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px 8px}
  .v657-exam-meta span{white-space:normal}
  .v657-attempt-row{grid-template-columns:1fr!important}
  .v657-attempt-score{justify-self:start}
  .v657-attempt-row .btn{grid-column:auto}
}