@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;600;700;800;900&display=swap');

/* ===== Version 1.8: unified typography ===== */
html,body,button,input,select,textarea,table,th,td,a,label,summary{
  font-family:"Roboto","Google Sans","Google Sans Text",Arial,sans-serif!important;
}
button,input,select,textarea{font:inherit;}
code,kbd,samp,pre,.code,.mono{font-family:"Roboto","Google Sans","Google Sans Text",Arial,sans-serif!important;}

:root{
  --bg:#f4f7fb;--surface:#fff;--text:#162033;--muted:#667085;--line:#e4e9f2;
  --primary:#0b4f8a;--primary2:#0e6fb5;--accent:#f59e0b;--success:#18864b;--danger:#c93636;
  --shadow:0 12px 35px rgba(16,40,72,.08);--radius:18px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:"Roboto","Google Sans","Google Sans Text",Arial,sans-serif;line-height:1.5}a{color:inherit}.container{width:min(1180px,calc(100% - 32px));margin:auto}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}.header-inner{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:11px;text-decoration:none;min-width:0}.brand-logo{width:60px;height:60px;object-fit:contain;flex:0 0 auto}.car-mark{display:grid;place-items:center;width:46px;height:46px;border-radius:14px;background:linear-gradient(145deg,var(--primary),var(--primary2));box-shadow:0 8px 18px rgba(11,79,138,.20);flex:0 0 auto}.car-mark svg{width:31px;height:31px;fill:#fff}.brand-copy{min-width:0}.brand strong{display:block;font-size:15px;letter-spacing:.2px}.brand small{display:block;color:var(--muted);margin-top:2px;font-size:11px;letter-spacing:.15px}.top-nav{display:flex;align-items:center;gap:16px}.top-nav a{text-decoration:none;font-weight:700;font-size:14px}.nav-btn,.btn{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:11px;padding:10px 14px;background:var(--primary);color:white!important;text-decoration:none;font-weight:800;cursor:pointer}.btn.secondary{background:#edf3f9;color:var(--primary)!important}.btn.danger{background:#fff0f0;color:var(--danger)!important}.btn.success{background:var(--success)}.btn.small{padding:7px 10px;font-size:13px}
.hero{background:linear-gradient(135deg,#082f54 0%,#0b4f8a 56%,#0f74bb 100%);color:#fff;padding:38px 0 58px;position:relative;overflow:hidden}.hero:after{content:"";position:absolute;width:360px;height:360px;border:70px solid rgba(255,255,255,.05);border-radius:50%;right:-90px;top:-160px}.hero-grid{display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center;position:relative;z-index:1}.hero h1{margin:0 0 8px;font-size:clamp(28px,4vw,44px);line-height:1.12}.hero p{margin:0;color:#d8e8f7;font-size:16px}.date-box{min-width:220px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);border-radius:16px;padding:15px 18px;text-align:center}.date-box b{display:block;font-size:19px}.date-box span{font-size:13px;color:#d8e8f7}
.content-lift{margin-top:-30px;position:relative;z-index:2}.section{margin:0 0 28px}.section-title{display:flex;align-items:end;justify-content:space-between;gap:16px;margin:0 0 14px}.section-title h2{font-size:22px;margin:0}.section-title p{color:var(--muted);margin:3px 0 0;font-size:14px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.today-summary{padding:20px}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:16px}.stat{border:1px solid var(--line);border-radius:14px;padding:14px;background:#fbfdff}.stat strong{display:block;font-size:25px}.stat span{font-size:13px;color:var(--muted)}
.shift-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.shift-card{border:1px solid var(--line);border-radius:15px;overflow:hidden;background:#fff}.shift-head{padding:12px 14px;background:#f8fafc;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.shift-head strong{font-size:15px}.count-badge{background:#eaf3fb;color:var(--primary);border-radius:999px;padding:3px 8px;font-size:12px;font-weight:800}.class-item{padding:13px 14px;border-bottom:1px solid #edf0f4}.class-item:last-child{border-bottom:0}.class-item .name{font-weight:900;margin-bottom:3px}.class-meta{display:grid;grid-template-columns:1fr 1fr;gap:5px 10px;font-size:13px;color:var(--muted)}.class-course{font-size:13px;margin:6px 0 0}.live{display:inline-flex;align-items:center;gap:5px;color:var(--success);font-size:12px;font-weight:800}.live:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--success);box-shadow:0 0 0 4px rgba(24,134,75,.12)}.empty{padding:24px;text-align:center;color:var(--muted);font-size:14px}
.toolbar{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:14px}.search-wrap{width:min(560px,100%)}.search{width:100%;padding:12px 14px;border:1px solid #cbd5e1;border-radius:12px;background:white;font:inherit;box-shadow:0 3px 12px rgba(16,40,72,.04)}.search:focus{outline:3px solid rgba(14,111,181,.12);border-color:var(--primary2)}.search-help{display:block;margin-top:6px;color:var(--muted);font-size:12px}.table-wrap{overflow:auto;border-radius:var(--radius)}table{width:100%;border-collapse:collapse;background:white}th,td{padding:12px 13px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;font-size:14px}th{background:#f7f9fc;color:#475467;font-size:12px;text-transform:uppercase;letter-spacing:.35px;white-space:nowrap}tbody tr:hover{background:#fbfdff}.person{font-weight:850}.code{display:inline-block;font-family:"Roboto","Google Sans","Google Sans Text",Arial,sans-serif;background:#f0f4f8;padding:2px 7px;border-radius:6px;font-size:12px;color:#344054}.badge{display:inline-block;border-radius:999px;padding:3px 8px;font-size:12px;font-weight:800;background:#edf3f9;color:var(--primary)}.badge.off{background:#f2f4f7;color:#667085}.actions{display:flex;gap:6px;white-space:nowrap}
.admin-shell{padding:28px 0 50px}.admin-grid{display:grid;grid-template-columns:230px 1fr;gap:22px}.admin-menu{padding:12px;height:max-content;position:sticky;top:96px}.admin-menu a{display:block;padding:10px 12px;border-radius:10px;text-decoration:none;font-weight:750;font-size:14px}.admin-menu a:hover,.admin-menu a.active{background:#edf4fb;color:var(--primary)}.admin-content{min-width:0}.page-head{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:16px}.page-head h1{margin:0;font-size:26px}.page-head p{margin:3px 0 0;color:var(--muted)}
.form-card{padding:20px}.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.field.full{grid-column:1/-1}.field label{display:block;font-weight:800;font-size:13px;margin-bottom:6px}.field input,.field select,.field textarea{width:100%;padding:11px 12px;border:1px solid #d7deea;border-radius:10px;background:#fff;font:inherit;color:var(--text)}.field textarea{min-height:90px;resize:vertical}.check{display:flex;align-items:center;gap:9px;margin-top:28px}.check input{width:18px;height:18px}.form-actions{margin-top:18px;display:flex;gap:10px}.hint{color:var(--muted);font-size:12px;margin-top:5px}.alert{padding:12px 14px;border-radius:11px;margin:0 0 14px;font-size:14px;border:1px solid}.alert.success{background:#ecfdf3;border-color:#abefc6;color:#067647}.alert.error{background:#fff1f0;border-color:#fecdca;color:#b42318}.alert.info{background:#eff8ff;border-color:#b2ddff;color:#175cd3}
.login-shell{min-height:calc(100vh - 150px);display:grid;place-items:center;padding:40px 16px}.login-card{width:min(460px,100%);padding:28px}.login-card h1{margin:0 0 6px}.login-card>p{color:var(--muted);margin:0 0 22px}.login-card .field{margin-bottom:14px}
.site-footer{border-top:1px solid var(--line);background:white;color:var(--muted);font-size:12px}.footer-inner{min-height:58px;display:flex;align-items:center;justify-content:space-between;gap:16px}.mono{font-family:ui-monospace,SFMono-Regular,Consolas,monospace}.muted{color:var(--muted)}
@media(max-width:900px){.shift-grid,.stats{grid-template-columns:1fr 1fr}.shift-card:last-child{grid-column:1/-1}.admin-grid{grid-template-columns:1fr}.admin-menu{position:static;display:flex;gap:4px;overflow:auto}.admin-menu a{white-space:nowrap}.hero-grid{grid-template-columns:1fr}.date-box{width:max-content}.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}}
@media(max-width:620px){.header-inner{align-items:flex-start;padding:12px 0;flex-direction:column}.top-nav{width:100%;justify-content:space-between}.brand-logo{width:50px;height:50px}.car-mark{width:40px;height:40px}.brand strong{font-size:13px}.brand small{display:none}.hero{padding-top:28px}.stats,.shift-grid{grid-template-columns:1fr}.shift-card:last-child{grid-column:auto}.class-meta{grid-template-columns:1fr}.toolbar,.page-head,.footer-inner{align-items:stretch;flex-direction:column}.container{width:min(100% - 22px,1180px)}th,td{padding:10px 9px}}
.hero-kicker{display:inline-block;margin-bottom:8px;font-size:12px;font-weight:900;letter-spacing:.9px;color:#d9ecfb;background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.18);border-radius:999px;padding:5px 10px}.lecturer-title{font-size:12px;font-weight:600}

/* ===== Version 1.2: navigation + weekly timetable ===== */
.top-nav a:not(.nav-btn){position:relative;padding:8px 2px;color:var(--text)}
.top-nav a:not(.nav-btn):after{content:"";position:absolute;left:0;right:0;bottom:1px;height:2px;border-radius:999px;background:var(--primary2);transform:scaleX(0);transition:transform .18s ease}
.top-nav a:not(.nav-btn):hover:after,.top-nav a:not(.nav-btn).active:after{transform:scaleX(1)}
.top-nav a.active{color:var(--primary)}
.footer-inner-v2{display:grid;grid-template-columns:1fr auto 1fr;align-items:center}
.footer-inner-v2>:last-child{text-align:right}
.copyright{font-weight:800;color:#344054;white-space:nowrap}
.week-hero{background:linear-gradient(135deg,#082f54 0%,#0b4f8a 56%,#0f74bb 100%);color:#fff;padding:30px 0 48px}
.week-hero-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}
.week-hero h1{margin:0 0 6px;font-size:clamp(27px,4vw,40px)}
.week-hero p{margin:0;color:#d8e8f7}
.week-summary-mini{display:grid;grid-template-columns:repeat(auto-fit,minmax(82px,1fr));gap:9px;min-width:310px}
.week-summary-mini>div{padding:11px 12px;border-radius:13px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.20);text-align:center}
.week-summary-mini strong{display:block;font-size:22px}
.week-summary-mini span{display:block;font-size:11px;color:#d8e8f7;margin-top:2px}
.week-page{margin-top:-25px;position:relative;z-index:2;padding-bottom:10px}
.week-controls{padding:15px 16px;margin-bottom:24px;display:flex;align-items:end;justify-content:space-between;gap:18px}
.week-nav-buttons{display:flex;gap:8px;flex-wrap:wrap}
.week-picker{display:flex;align-items:end;gap:8px;flex-wrap:wrap}
.week-picker label{display:block;font-size:12px;font-weight:800;color:var(--muted);width:100%;margin-bottom:-2px}
.week-picker input{height:40px;border:1px solid #cbd5e1;border-radius:10px;padding:0 10px;background:white;font:inherit;color:var(--text)}
.weekly-grid-wrap{overflow:auto;max-width:100%}
.weekly-grid-table{min-width:1480px;table-layout:fixed}
.weekly-grid-table th,.weekly-grid-table td{border-right:1px solid var(--line)}
.weekly-grid-table th:last-child,.weekly-grid-table td:last-child{border-right:0}
.weekly-grid-table thead th{padding:10px 8px;text-align:center;background:#f7f9fc;vertical-align:middle}
.weekly-grid-table .weekly-lecturer-col{width:190px;text-align:left;position:sticky;left:0;z-index:4;background:#fff}
.weekly-grid-table thead .weekly-lecturer-col{background:#f7f9fc;z-index:6}
.weekly-grid-table tbody tr:hover .weekly-lecturer-col{background:#fbfdff}
.weekly-grid-table th:not(.weekly-lecturer-col){width:184px}
.weekday-label{display:block;font-size:12px;font-weight:900;color:#344054}
.weekday-date{display:block;font-size:12px;color:var(--muted);margin-top:2px}
.today-pill{display:inline-block;margin-top:5px;padding:2px 7px;border-radius:999px;background:#e8f5ff;color:var(--primary);font-size:10px;font-weight:900}
.today-col{background:#fbfdff!important}
.weekly-grid-table td{padding:8px;background:#fff;height:92px}
.week-person-name{font-weight:900;line-height:1.25;margin-bottom:3px}
.week-person-title{font-size:11px;margin-bottom:6px}
.week-cell{vertical-align:top}
.week-none{display:block;text-align:center;color:#c2c9d4;padding-top:20px}
.week-class{border:1px solid #dfe6ef;border-left:4px solid var(--primary2);border-radius:10px;padding:8px 8px 7px;background:#fff;margin-bottom:7px;box-shadow:0 2px 7px rgba(16,40,72,.04)}
.week-class:last-child{margin-bottom:0}
.week-class.shift-afternoon{border-left-color:#d97706}
.week-class.shift-evening{border-left-color:#7c3aed}
.week-class-time{font-size:11px;font-weight:900;color:var(--primary);margin-bottom:3px}
.week-class-course{font-size:12px;font-weight:800;line-height:1.3;color:#1d2939}
.week-class-meta{display:flex;align-items:center;justify-content:space-between;gap:6px;margin-top:6px;font-size:11px;color:var(--muted)}
.week-class-meta .code{font-size:10px;padding:1px 5px}
.week-scroll-note{font-size:12px;color:var(--muted);margin:8px 2px 0}
.week-empty{margin-bottom:30px}
@media(max-width:900px){.week-hero-inner{align-items:flex-start;flex-direction:column}.week-summary-mini{min-width:0;width:100%}.week-controls{align-items:stretch;flex-direction:column}.week-picker{justify-content:flex-start}.footer-inner-v2{grid-template-columns:1fr;text-align:center;gap:5px;padding:12px 0}.footer-inner-v2>:last-child{text-align:center}}
@media(max-width:720px){.top-nav{gap:10px;flex-wrap:wrap}.top-nav a{font-size:12px}.week-nav-buttons .btn{flex:1 1 auto}.week-picker input{flex:1 1 170px}.week-picker .btn{flex:0 0 auto}.week-summary-mini{grid-template-columns:repeat(3,1fr)}}
@media(max-width:460px){.week-summary-mini{grid-template-columns:1fr 1fr 1fr}.week-summary-mini>div{padding:9px 6px}.week-summary-mini strong{font-size:19px}}

/* ===== Version 1.3: full-width weekly grid + sticky header + schedule adjustments ===== */
.week-wide-inner{width:calc(100% - 36px);max-width:none;margin:0 auto}
.week-page-wide{width:calc(100% - 28px);max-width:none;margin-left:auto;margin-right:auto}
.week-page-wide .week-controls{width:100%}
.week-table-section{width:100%}
.weekly-grid-wrap{overflow:visible;border-radius:16px}
.weekly-grid-table{width:100%;min-width:1080px;table-layout:fixed}
.weekly-grid-table .weekly-lecturer-col{width:160px;min-width:160px}
.weekly-grid-table th:not(.weekly-lecturer-col){width:auto}
.weekly-grid-table thead th{position:sticky;top:var(--site-header-height,76px);z-index:18;background:#eef3f8;box-shadow:0 2px 0 rgba(16,40,72,.08)}
.weekly-grid-table thead .weekly-lecturer-col{z-index:22;background:#e8eef5}
.weekly-grid-table tbody tr:nth-child(odd)>td{background:#fff}
.weekly-grid-table tbody tr:nth-child(even)>td{background:#f3f7fb}
.weekly-grid-table tbody tr:nth-child(odd)>.weekly-lecturer-col{background:#fff}
.weekly-grid-table tbody tr:nth-child(even)>.weekly-lecturer-col{background:#f3f7fb}
.weekly-grid-table tbody tr:hover>td,.weekly-grid-table tbody tr:hover>.weekly-lecturer-col{background:#edf6ff}
.weekly-grid-table tbody td.today-col{background:#eef8ff!important}
.weekly-grid-table td{height:96px}
.weekly-grid-table .weekly-lecturer-col{position:sticky;left:0;z-index:8;border-right:1px solid #d5deea}
.weekly-grid-table thead .weekly-lecturer-col{left:0}
.week-class.makeup-class{border-left-color:#18864b;background:#f3fff7}
.makeup-badge{display:inline-flex;align-items:center;margin-left:6px;padding:2px 6px;border-radius:999px;background:#dcfae6;color:#067647;font-size:9px;font-weight:900;vertical-align:middle;white-space:nowrap}
.makeup-origin{margin-top:5px;font-size:10px;color:#067647;font-weight:800}
.week-change-notice{border:1px dashed #f2b8b5;border-left:4px solid #d92d20;border-radius:9px;padding:7px 8px;background:#fff6f5;margin-bottom:7px}
.week-change-notice.rescheduled{border-color:#f3c28e;border-left-color:#dc6803;background:#fff8ed}
.week-change-title{font-size:10px;font-weight:900;text-transform:uppercase;letter-spacing:.25px;color:#b42318}
.week-change-notice.rescheduled .week-change-title{color:#b54708}
.week-change-course{font-size:11px;font-weight:800;line-height:1.3;margin-top:2px}
.week-change-meta{font-size:10px;color:#7a2e0e;margin-top:4px}
.today-adjustments{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin:0 0 14px;padding:10px 12px;border-radius:12px;background:#fff8ed;border:1px solid #fedf89;font-size:12px;color:#7a2e0e}
.today-adjustment-item{padding:4px 8px;border-radius:999px;background:#fff;border:1px solid #f8d6a5}
.admin-content .stats{grid-template-columns:repeat(auto-fit,minmax(150px,1fr))}
.adjustment-summary{background:rgba(255,255,255,.18)!important}

@media(max-width:1100px){
  .weekly-grid-wrap{overflow-x:auto;overflow-y:visible}
  .weekly-grid-table{min-width:1080px}
}
@media(max-width:700px){
  .week-wide-inner,.week-page-wide{width:calc(100% - 16px)}
  .weekly-grid-table{min-width:1020px}
}

/* ===== Version 1.4: practice rooms, activity plan, training framework, lecturer-first adjustment ===== */
.header-inner{width:calc(100% - 32px);max-width:none}
.top-nav{gap:12px;min-width:0;justify-content:flex-end}
.top-nav a{font-size:12px;white-space:nowrap}
.brand{flex:0 1 auto}

/* Lecturer-first schedule adjustment */
.lecturer-first-field{position:relative}
.lecturer-pick-list{display:none;position:absolute;z-index:30;left:0;right:0;top:76px;max-height:300px;overflow:auto;padding:8px;background:#fff;border:1px solid #cbd5e1;border-radius:12px;box-shadow:0 14px 32px rgba(16,40,72,.16)}
.lecturer-pick-list.is-open{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:7px}
.lecturer-choice{appearance:none;text-align:left;border:1px solid var(--line);background:#fff;border-radius:10px;padding:9px 10px;cursor:pointer;color:var(--text)}
.lecturer-choice:hover,.lecturer-choice.selected{border-color:#84c5ec;background:#eff8ff}
.lecturer-choice b{display:block;font-size:13px}
.lecturer-choice span{display:block;color:var(--muted);font-size:11px;margin-top:2px}
.selected-lecturer-hint{margin-top:6px;color:var(--muted);font-size:12px}
.schedule-after-lecturer select:disabled{background:#f2f4f7;color:#98a2b3}

/* Practice room plan */
.practice-hero{background:linear-gradient(135deg,#073b4c 0%,#0b6175 55%,#0e8194 100%)}
.room-today-section{margin-top:4px}
.practice-room-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:22px}
.practice-room-card{overflow:hidden}
.practice-room-head{display:flex;align-items:center;justify-content:space-between;padding:14px 15px;background:#f5fbfc;border-bottom:1px solid var(--line)}
.practice-room-head>div{display:flex;align-items:center;gap:8px}.practice-room-head strong{font-size:18px;color:#07556a}.room-icon{font-size:20px}
.room-session{padding:12px 14px;border-bottom:1px solid var(--line);background:#fff}.room-session:last-child{border-bottom:0}.room-session-live{background:#f0fdf4}
.room-session-top{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:12px;color:var(--primary)}
.room-session-course{font-weight:850;margin-top:4px;font-size:13px}.room-session-meta{font-size:11px;color:var(--muted);margin-top:3px}.compact-empty{padding:20px 12px}
.room-week-controls{margin-top:4px}.practice-week-table .practice-room-col{width:135px;min-width:135px}.practice-room-name{font-weight:900;color:#07556a;font-size:14px}.practice-week-table td{height:118px}
.practice-week-table .week-class{padding:7px}.practice-week-table .week-class-meta{align-items:flex-start;flex-direction:column;gap:3px}

/* Activity plan */
.activity-hero{background:linear-gradient(135deg,#4b3d00 0%,#7d6500 48%,#b28a00 100%)}
.activity-summary{min-width:330px}.activity-toolbar{padding:13px 15px;margin-bottom:22px;display:flex;align-items:center;justify-content:space-between;gap:14px;font-size:13px}
.activity-timeline-wrap{overflow:auto;max-width:100%;border-radius:15px;max-height:calc(100vh - 150px)}
.activity-timeline-table{border-collapse:separate;border-spacing:0;table-layout:fixed;min-width:1580px;width:100%}
.activity-name-width{width:300px}.activity-week-width{width:24px}
.activity-timeline-table th,.activity-timeline-table td{border-right:1px solid #e5e9ef;border-bottom:1px solid #e5e9ef;padding:0}
.activity-timeline-table thead th{position:sticky;z-index:15;background:#f5f7fa;text-align:center;top:var(--site-header-height,76px)}
.activity-timeline-table thead tr:nth-child(2) th{top:calc(var(--site-header-height,76px) + 34px)}
.activity-timeline-table .activity-name-col{position:sticky;left:0;z-index:22;background:#fff;padding:10px 12px;text-align:left}
.activity-timeline-table thead .activity-name-col{background:#eef2f6;z-index:28}
.activity-semester-row th{height:34px;font-size:11px;font-weight:900}.activity-semester-row .sem1{background:#d8f2df}.activity-semester-row .sem2{background:#ffe0bd}.activity-semester-row .sem3{background:#efc7eb}
.activity-week-head{height:48px;font-size:10px}.activity-week-head span{display:block;font-weight:900;color:#344054}.activity-week-head small{display:block;font-size:8px;color:#7b8494;margin-top:2px}.activity-week-head.current-academic-week{background:#dff2ff!important;box-shadow:inset 0 -3px 0 #0e6fb5}
.activity-timeline-table tbody tr:nth-child(even) .activity-name-col,.activity-timeline-table tbody tr:nth-child(even) .timeline-empty{background:#f7f9fc}
.activity-timeline-table tbody tr:hover .activity-name-col,.activity-timeline-table tbody tr:hover .timeline-empty{background:#edf6ff}
.activity-name{font-size:12px;font-weight:850;line-height:1.35}.activity-meta{display:flex;gap:7px;flex-wrap:wrap;margin-top:5px;font-size:10px;color:var(--muted)}.activity-category{padding:1px 6px;border-radius:999px;background:#f2f4f7}.activity-note{margin-top:5px;font-size:10px;color:#7a2e0e}
.activity-status{display:inline-block;margin-top:6px;padding:2px 7px;border-radius:999px;font-size:9px;font-weight:900}
.activity-bar-cell{padding:4px!important;background:#fff}.timeline-empty{background:#fff}.activity-bar{height:52px;border-radius:7px;padding:6px 7px;display:flex;align-items:center;justify-content:center;text-align:center;font-size:9px;font-weight:850;line-height:1.2;overflow:hidden;border:1px solid transparent}
.activity-bar span{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.activity-bar-cell.bar-current{box-shadow:inset 0 0 0 2px rgba(14,111,181,.32)}
.status-planned{background:#eaf3fb;color:#0b4f8a}.activity-bar.status-planned{background:#dcecf8;border-color:#b6d7ef;color:#174d72}
.status-in_progress{background:#fff3d6;color:#9a6700}.activity-bar.status-in_progress{background:#ffe6a8;border-color:#f7c85a;color:#6f4c00}
.status-completed{background:#dcfae6;color:#067647}.activity-bar.status-completed{background:#c7f2d6;border-color:#84d5a3;color:#065f3c}
.status-postponed{background:#f2f4f7;color:#475467}.activity-bar.status-postponed{background:#e6e9ed;border-color:#c9d0d8;color:#475467}
.status-cancelled{background:#fee4e2;color:#b42318}.activity-bar.status-cancelled{background:#ffd7d3;border-color:#f1a29a;color:#9c1d14}
.activity-legend{display:flex;gap:14px;align-items:center;flex-wrap:wrap;padding:10px 2px 0;font-size:11px;color:var(--muted)}.activity-legend span{display:flex;align-items:center;gap:5px}.legend-dot{width:11px;height:11px;border-radius:3px;display:inline-block;padding:0}

/* Activity admin */
.activity-admin-list{display:grid;gap:10px}.activity-admin-item{padding:13px 14px;display:grid;grid-template-columns:minmax(280px,1fr) minmax(500px,1.35fr);gap:16px;align-items:center}.activity-admin-title{font-weight:900;margin-bottom:3px}.activity-status-form{display:grid;grid-template-columns:170px 1fr auto;gap:8px;align-items:center}.activity-status-form select,.activity-status-form input{min-width:0;padding:9px 10px;border:1px solid #d7deea;border-radius:9px;background:#fff;font:inherit;font-size:12px}

/* Training framework */
.training-hero{background:linear-gradient(135deg,#28324b 0%,#465477 52%,#68789d 100%)}
.training-source-note{padding:13px 15px;margin-bottom:22px;display:flex;justify-content:space-between;gap:18px;align-items:center;font-size:13px}
.training-table-wrap{overflow:auto}.training-table{min-width:1180px}.training-table th{position:sticky;top:var(--site-header-height,76px);z-index:12;text-align:center}.training-table td{vertical-align:middle;line-height:1.45}.training-table tbody tr:nth-child(even){background:#f6f8fb}.training-table .training-group{width:160px;position:sticky;left:0;background:#fff;z-index:5}.training-table tbody tr:nth-child(even) .training-group{background:#f6f8fb}.train-sem1{background:#d8f2df!important}.train-sem2{background:#ffe0bd!important}.train-sem3{background:#e7e1f7!important}
.training-two-col{display:grid;grid-template-columns:1.2fr .8fr;gap:16px;margin-bottom:28px}.training-panel{padding:18px}.holiday-list{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}.holiday-item{display:flex;gap:10px;align-items:center;border:1px solid var(--line);border-radius:11px;padding:10px;background:#fbfcfe}.holiday-date{min-width:108px;font-size:11px;font-weight:900;color:#b42318}.holiday-item b{display:block;font-size:12px}.holiday-item span{display:block;color:var(--muted);font-size:10px;margin-top:2px}
.training-rule{display:flex;align-items:center;gap:10px;border-bottom:1px solid var(--line);padding:10px 0}.rule-code{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:#edf3f9;color:var(--primary);font-weight:900}.training-address{margin-top:14px;padding:11px;border-radius:10px;background:#f8fafc;font-size:12px;color:#475467}
.academic-task-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.academic-task{padding:12px;display:flex;gap:9px;align-items:center}.academic-task span{display:grid;place-items:center;width:26px;height:26px;flex:0 0 auto;border-radius:8px;background:#edf3f9;color:var(--primary);font-size:11px;font-weight:900}.academic-task b{font-size:12px;line-height:1.3}

@media(max-width:1450px){
  .brand strong{font-size:13px}.brand-logo{width:52px;height:52px}.car-mark{width:40px;height:40px}.top-nav{gap:8px}.top-nav a{font-size:11px}
}
@media(max-width:1120px){
  .header-inner{align-items:flex-start;flex-direction:column;padding:10px 0;gap:8px}.top-nav{width:100%;overflow-x:auto;justify-content:flex-start;padding-bottom:4px}.top-nav a{font-size:12px}.practice-room-cards{grid-template-columns:1fr 1fr}.practice-room-card:last-child{grid-column:1/-1}.activity-admin-item{grid-template-columns:1fr}.training-two-col{grid-template-columns:1fr}.academic-task-grid{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:760px){
  .practice-room-cards{grid-template-columns:1fr}.practice-room-card:last-child{grid-column:auto}.activity-toolbar,.training-source-note{align-items:flex-start;flex-direction:column}.activity-status-form{grid-template-columns:1fr}.holiday-list{grid-template-columns:1fr}.academic-task-grid{grid-template-columns:1fr 1fr}.activity-name-width{width:250px}.activity-timeline-table{min-width:1480px}
}
@media(max-width:480px){.academic-task-grid{grid-template-columns:1fr}.activity-admin-item{padding:11px}.activity-name-width{width:230px}}
.source-preview{overflow:hidden}.source-preview summary{cursor:pointer;padding:14px 16px;font-weight:850;color:var(--primary);list-style-position:inside}.source-preview[open] summary{border-bottom:1px solid var(--line);background:#f8fafc}.source-preview-body{padding:12px;overflow:auto;background:#fff}.source-preview-body img{display:block;width:100%;min-width:900px;height:auto;border-radius:10px;border:1px solid var(--line)}

/* ===== Version 1.5: class code visibility ===== */
.class-code-line,.week-class-code,.room-session-class{margin-top:5px;font-size:11px;color:#475467;line-height:1.35}
.class-code-pill{display:inline-flex;align-items:center;max-width:100%;padding:2px 7px;border-radius:999px;background:#eef4ff;border:1px solid #c7d7fe;color:#2847a1;font-size:10px;font-weight:900;line-height:1.35;white-space:normal}
.week-class-code .class-code-pill,.room-session-class .class-code-pill{font-size:9px;padding:1px 6px}
.week-change-notice .week-class-code{color:#7a2e0e}


/* ===== Version 1.6: practice-room naming/spacing + activity update emphasis ===== */
/* The practice-room page should start below the teal hero instead of overlapping it. */
.practice-page{margin-top:0;padding-top:20px}
.practice-page .room-today-section{margin-top:0}

/* Any activity that has been explicitly updated by Admin is easy to recognize.
   Status colors on the timeline remain meaningful; the fixed left cell gets a green completion/update emphasis. */
.activity-timeline-table tbody tr.activity-row-updated .activity-name-col{
  background:#e8f8ee!important;
  box-shadow:inset 5px 0 0 #159447;
}
.activity-timeline-table tbody tr.activity-row-updated .activity-name{
  color:#08783d;
  font-weight:950;
}
.activity-timeline-table tbody tr.activity-row-updated .activity-meta{
  color:#187548;
  font-weight:700;
}
.activity-timeline-table tbody tr.activity-row-updated .activity-note{
  color:#08783d;
  font-weight:850;
}
.activity-timeline-table tbody tr.activity-row-updated .activity-bar span{
  font-weight:950;
}

/* SQLite beta additions */
.beta-badge{display:inline-block;margin-left:6px;padding:2px 7px;border-radius:999px;background:#e7f5ff;color:#075985;border:1px solid #b6e0fe;font-size:10px;font-weight:800;vertical-align:1px;letter-spacing:.03em;white-space:nowrap}
.audit-json{min-width:420px;max-width:760px;padding:10px 0}.audit-json pre{white-space:pre-wrap;word-break:break-word;background:#f6f8fb;border:1px solid #e4eaf0;padding:10px;border-radius:10px;font:12px/1.45 ui-monospace,SFMono-Regular,Consolas,monospace;max-height:220px;overflow:auto}
.stats.compact{grid-template-columns:repeat(auto-fit,minmax(120px,1fr));margin-top:14px}.stats.compact .stat{padding:12px}.stats.compact .stat strong{font-size:22px}

/* ===== SQLite beta v2.1: timetable grouped by teaching shift ===== */
.timetable-hero{background:linear-gradient(135deg,#073c68 0%,#0b5b93 55%,#1680bd 100%)}
.timetable-summary{min-width:390px}
.timetable-page{padding-bottom:22px}
.timetable-title-row{align-items:center}
.shift-legend{display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:flex-end}
.shift-legend-item,.shift-name-badge{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;font-size:11px;font-weight:900;letter-spacing:.15px;border:1px solid transparent}
.shift-legend-item{padding:6px 10px}
.shift-name-badge{min-width:70px;padding:6px 9px}
.shift-legend-item.morning,.shift-name-badge.morning{background:#dff2ff;color:#075985;border-color:#9fd8f5}
.shift-legend-item.afternoon,.shift-name-badge.afternoon{background:#fff0d6;color:#9a4f00;border-color:#f3c37b}
.shift-legend-item.evening,.shift-name-badge.evening{background:#eee5ff;color:#6336a3;border-color:#cdb7f3}
.timetable-grid-wrap{overflow:visible;border-radius:16px}
.timetable-grid-table{width:100%;min-width:1180px;table-layout:fixed;border-collapse:separate;border-spacing:0}
.timetable-grid-table th,.timetable-grid-table td{border-right:1px solid #dce4ee}
.timetable-grid-table th:last-child,.timetable-grid-table td:last-child{border-right:0}
.timetable-grid-table thead th{position:sticky;top:var(--site-header-height,76px);z-index:18;background:#eaf0f6;text-align:center;box-shadow:0 2px 0 rgba(16,40,72,.08)}
.timetable-grid-table .timetable-lecturer-col{width:165px;min-width:165px;position:sticky;left:0;z-index:10;text-align:left;border-right:1px solid #cfd9e5;background:#fff}
.timetable-grid-table thead .timetable-lecturer-col{z-index:25;background:#e4ebf3}
.timetable-grid-table .timetable-shift-col{width:92px;min-width:92px;position:sticky;left:165px;z-index:9;text-align:center;border-right:1px solid #cfd9e5}
.timetable-grid-table thead .timetable-shift-col{z-index:24;background:#e4ebf3}
.timetable-grid-table th:not(.timetable-lecturer-col):not(.timetable-shift-col){width:auto}
.timetable-grid-table td{padding:8px;height:88px;vertical-align:top}
.timetable-grid-table .timetable-cell.today-col{box-shadow:inset 0 0 0 999px rgba(14,111,181,.035)}
.timetable-shift-row.shift-row-morning>td:not(.timetable-lecturer-col){background:#f2faff}
.timetable-shift-row.shift-row-afternoon>td:not(.timetable-lecturer-col){background:#fff9ef}
.timetable-shift-row.shift-row-evening>td:not(.timetable-lecturer-col){background:#f8f4ff}
.timetable-shift-row.shift-row-morning .timetable-shift-col{background:#e5f6ff!important}
.timetable-shift-row.shift-row-afternoon .timetable-shift-col{background:#fff1dc!important}
.timetable-shift-row.shift-row-evening .timetable-shift-col{background:#f0e8ff!important}
.timetable-shift-row.lecturer-group-start>td{border-top:2px solid #cbd7e5}
.timetable-shift-row.lecturer-group-end>td{border-bottom:2px solid #cbd7e5}
.timetable-shift-row:first-child>td{border-top:0}
.timetable-grid-table .timetable-lecturer-col[rowspan]{vertical-align:middle;background:#fff}
.lecturer-shift-count{margin-top:8px;font-size:10px;color:#667085;font-weight:700}
.timetable-cell .week-class{background:rgba(255,255,255,.93)}
.timetable-cell .week-change-notice{background:#fff8f7}
@media(max-width:1280px){.timetable-grid-wrap{overflow-x:auto;overflow-y:visible}.timetable-grid-table{min-width:1180px}}
@media(max-width:900px){.timetable-summary{min-width:0;width:100%}.timetable-title-row{align-items:flex-start;flex-direction:column}.shift-legend{justify-content:flex-start}.timetable-grid-table .timetable-lecturer-col{width:150px;min-width:150px}.timetable-grid-table .timetable-shift-col{left:150px;width:84px;min-width:84px}}

/* ===== SQLite v2.2: production UI cleanup ===== */
/* Admin pages use the available screen width instead of the public 1180px container. */
.admin-shell.container{
  width:calc(100% - 28px);
  max-width:none;
  margin-left:auto;
  margin-right:auto;
}
.admin-grid{
  grid-template-columns:230px minmax(0,1fr);
  width:100%;
}
.admin-content{width:100%;min-width:0}
.admin-content .actions{
  display:flex;
  flex-wrap:wrap;
  white-space:normal;
  gap:8px;
}
.admin-content .actions .btn{white-space:nowrap}
.admin-content .form-card{max-width:none;width:100%}

/* Timetable shift column is centered and each teaching shift colors the entire row. */
.timetable-grid-table .timetable-shift-col{
  text-align:center!important;
  vertical-align:middle!important;
}
.timetable-grid-table .timetable-shift-row.shift-row-morning>td{
  background:#edf8ff!important;
}
.timetable-grid-table .timetable-shift-row.shift-row-afternoon>td{
  background:#fff7e8!important;
}
.timetable-grid-table .timetable-shift-row.shift-row-evening>td{
  background:#f5efff!important;
}
.timetable-grid-table .timetable-shift-row.shift-row-morning>td.timetable-lecturer-col{
  background:#e5f5ff!important;
}
.timetable-grid-table .timetable-shift-row.shift-row-afternoon>td.timetable-lecturer-col{
  background:#fff0d8!important;
}
.timetable-grid-table .timetable-shift-row.shift-row-evening>td.timetable-lecturer-col{
  background:#eee4ff!important;
}
.timetable-grid-table .timetable-shift-row>td.timetable-lecturer-col{
  vertical-align:middle;
}
.timetable-grid-table .timetable-shift-row>td.timetable-shift-col{
  padding-left:8px;
  padding-right:8px;
}

/* Keep the training table header in normal table order: header first, D26 and other rows below. */
.training-table thead{display:table-header-group!important}
.training-table thead tr{display:table-row!important}
.training-table thead th{
  position:static!important;
  top:auto!important;
  z-index:auto!important;
}

/* No longer display the old beta badge if an older cached header still references it. */
.beta-badge{display:none!important}

@media(max-width:900px){
  .admin-shell.container{width:calc(100% - 18px)}
  .admin-grid{grid-template-columns:1fr}
}

/* ===== SQLite v2.3: layout polish, merged lecturer cells, practice-room shifts, favicon support ===== */
/* Keep the footer at the real bottom of the viewport on short pages such as Admin overview. */
body{
  min-height:100vh;
  display:flex;
  flex-direction:column;
}
body>main{
  width:100%;
  flex:1 0 auto;
}
.site-footer{
  margin-top:auto;
  flex:0 0 auto;
}

/* Public work-schedule page uses the available screen width. */
.public-page-wide{
  width:calc(100% - 28px)!important;
  max-width:none!important;
  margin-left:auto!important;
  margin-right:auto!important;
}

/* Timetable: lecturer information is one merged, centered cell across all teaching shifts. */
.timetable-grid-table .timetable-lecturer-merged{
  text-align:center!important;
  vertical-align:middle!important;
  background:#f8fbff!important;
  padding:14px 10px!important;
}
.timetable-grid-table .timetable-lecturer-merged .week-person-name{
  text-align:center;
}
.timetable-grid-table .timetable-lecturer-merged .week-person-title{
  text-align:center;
}
.timetable-grid-table .timetable-lecturer-merged .code{
  margin-top:7px;
}
/* Row colors should not recolor the single merged lecturer cell. */
.timetable-grid-table .timetable-shift-row.shift-row-morning>td.timetable-lecturer-merged,
.timetable-grid-table .timetable-shift-row.shift-row-afternoon>td.timetable-lecturer-merged,
.timetable-grid-table .timetable-shift-row.shift-row-evening>td.timetable-lecturer-merged{
  background:#f8fbff!important;
}

/* Practice-room weekly plan: room + teaching shift + Monday-Sunday. */
.practice-week-table{
  table-layout:fixed;
  min-width:1180px;
  border-collapse:separate;
  border-spacing:0;
}
.practice-week-table .practice-room-col{
  width:150px;
  min-width:150px;
  position:sticky;
  left:0;
  z-index:11;
  text-align:center;
  vertical-align:middle;
  background:#f8fbff;
  border-right:1px solid #cfd9e5;
}
.practice-week-table thead .practice-room-col{
  z-index:26;
  background:#e4ebf3;
}
.practice-week-table .practice-shift-col{
  width:92px;
  min-width:92px;
  position:sticky;
  left:150px;
  z-index:10;
  text-align:center!important;
  vertical-align:middle!important;
  border-right:1px solid #cfd9e5;
  background:#fff;
}
.practice-week-table thead .practice-shift-col{
  z-index:25;
  background:#e4ebf3;
}
.practice-week-table .practice-room-merged{
  text-align:center!important;
  vertical-align:middle!important;
  background:#f8fbff!important;
}
.practice-week-table .practice-room-name{
  justify-content:center;
  text-align:center;
}
.practice-week-table .practice-shift-row.shift-row-morning>td:not(.practice-room-merged){background:#edf8ff!important}
.practice-week-table .practice-shift-row.shift-row-afternoon>td:not(.practice-room-merged){background:#fff7e8!important}
.practice-week-table .practice-shift-row.shift-row-evening>td:not(.practice-room-merged){background:#f5efff!important}
.practice-week-table .practice-shift-row.shift-row-morning>td.practice-shift-col{background:#e5f6ff!important}
.practice-week-table .practice-shift-row.shift-row-afternoon>td.practice-shift-col{background:#fff1dc!important}
.practice-week-table .practice-shift-row.shift-row-evening>td.practice-shift-col{background:#f0e8ff!important}
.practice-week-table .practice-room-group-start>td{border-top:2px solid #cbd7e5}
.practice-week-table .practice-room-group-end>td{border-bottom:2px solid #cbd7e5}
.practice-week-table tbody tr:first-child>td{border-top:0}
.practice-week-table .week-class{background:rgba(255,255,255,.93)}

@media(max-width:900px){
  .public-page-wide{width:calc(100% - 18px)!important}
  .practice-week-wrap{overflow-x:auto;overflow-y:visible}
  .practice-week-table .practice-room-col{width:135px;min-width:135px}
  .practice-week-table .practice-shift-col{left:135px;width:82px;min-width:82px}
}
.timetable-grid-table .timetable-lecturer-merged{
  border-bottom:2px solid #cbd7e5!important;
}

/* v2.4 - Import lịch & lưu trữ học kỳ */
.import-mode-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:12px 0 18px}
.choice-card{display:flex;gap:10px;align-items:flex-start;padding:16px;border:1px solid #d8e2ec;border-radius:14px;background:#f9fbfd;cursor:pointer}
.choice-card input{margin-top:4px}.choice-card b{display:block;color:#0f3d64}.choice-card span{display:block;color:#65778a;font-size:13px;line-height:1.45;margin-top:4px}.choice-card:has(input:checked){border-color:#0f6fb5;background:#eef7ff;box-shadow:0 0 0 2px #0f6fb51a}
.term-fields{margin:12px 0 18px;padding:14px;border-radius:14px;background:#f6f9fc;border:1px dashed #cfdbe7}
.import-preview{max-height:62vh;overflow:auto;margin:12px 0 16px}.import-preview table{min-width:1450px}.import-preview th{position:sticky;top:0;z-index:2;background:#edf4fa}.import-preview input,.import-preview select{min-width:130px;width:100%;padding:8px 9px;border:1px solid #ccd9e5;border-radius:8px;background:#fff;font:inherit}.import-preview .mini-input{min-width:90px}.time-pair{display:flex;gap:6px}.time-pair input{min-width:105px}
.term-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:12px}.term-card{display:flex;justify-content:space-between;gap:14px;padding:16px 18px;border-radius:14px;border:1px solid #dce5ed;background:#fff;text-decoration:none;color:inherit}.term-card:hover{border-color:#8ab8d8}.term-card.active{border-color:#0d6ca8;box-shadow:0 0 0 2px #0d6ca818}.term-card b,.term-card span{display:block}.term-card>div:first-child span{font-size:13px;color:#68798a;margin-top:4px}.term-meta{text-align:right}.term-meta strong{display:block;margin-top:8px;font-size:13px;color:#41566b}
@media(max-width:900px){.import-mode-grid{grid-template-columns:1fr}.term-grid{grid-template-columns:1fr}}

/* v2.5 - Lịch sinh hoạt lớp */
.class-meeting-hero{background:linear-gradient(110deg,#0b4e78,#117ab4)}
.class-meeting-page{padding-bottom:26px}
.class-meeting-search{display:flex;gap:10px;align-items:center;margin:12px 0 18px}
.class-meeting-search .search{flex:1;min-width:220px}
.class-meeting-empty{padding:28px}
.class-meeting-today-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:14px}
.class-meeting-card{border:1px solid #d8e3ed;border-left:5px solid #1780c2;border-radius:14px;background:#fff;padding:15px 16px;box-shadow:0 5px 16px #0d38550a}
.class-meeting-card.shift-afternoon{border-left-color:#e58a00;background:#fffaf1}
.class-meeting-card.shift-evening{border-left-color:#7a4dc5;background:#faf7ff}
.class-meeting-card-head{display:flex;justify-content:space-between;gap:12px;align-items:center;font-size:17px}
.class-meeting-class{margin:9px 0 8px;color:#31546d}.class-meeting-meta{display:flex;gap:16px;flex-wrap:wrap;color:#506a7d;font-size:14px}
.class-meeting-topic{margin-top:10px;padding-top:9px;border-top:1px dashed #d8e1e9;color:#314b5e}
.class-meeting-week{margin-top:18px}.class-meeting-week-wrap{overflow:auto;max-height:68vh}
.class-meeting-week-table{min-width:1450px;table-layout:fixed;border-collapse:separate;border-spacing:0}
.class-meeting-week-table thead th{position:sticky;top:0;z-index:9;background:#e9f0f6;text-align:center}
.class-meeting-week-table th:nth-child(1){width:190px;min-width:190px;position:sticky;left:0;z-index:12}
.class-meeting-week-table th:nth-child(2){width:115px;min-width:115px;position:sticky;left:190px;z-index:12}
.class-meeting-week-table td:nth-child(1){position:sticky;left:0;z-index:5;background:#f8fbfe;vertical-align:middle}
.class-meeting-week-table td:nth-child(2){position:sticky;left:190px;z-index:5;background:#f8fbfe;vertical-align:middle;text-align:center}
.class-meeting-week-table td:not(:nth-child(1)):not(:nth-child(2)){vertical-align:top;text-align:center;min-width:150px}
.class-meeting-person{text-align:center!important}.class-meeting-slot{padding:9px 10px;border-radius:10px;background:#eaf7ff;border-left:4px solid #1682c4;text-align:left;margin:3px 0}
.class-meeting-slot.shift-afternoon{background:#fff4df;border-left-color:#e58a00}.class-meeting-slot.shift-evening{background:#f3ecff;border-left-color:#7a4dc5}
.class-meeting-slot b,.class-meeting-slot span,.class-meeting-slot small{display:block}.class-meeting-slot span{margin-top:4px;color:#4c6576}.class-meeting-slot small{margin-top:4px;color:#667d8d;line-height:1.3}
.week-controls{display:flex;justify-content:space-between;gap:14px;align-items:center;margin:10px 0 14px}.week-picker{display:flex;gap:8px;align-items:center}.week-picker input{padding:10px 11px;border:1px solid #cdd9e4;border-radius:10px;background:#fff}
@media(max-width:900px){.class-meeting-search{flex-wrap:wrap}.class-meeting-search .search{width:100%;flex-basis:100%}.week-controls{align-items:flex-start;flex-direction:column}.class-meeting-week-table th:nth-child(1){width:150px;min-width:150px}.class-meeting-week-table th:nth-child(2){left:150px;width:100px;min-width:100px}.class-meeting-week-table td:nth-child(2){left:150px}}

/* v2.5.7 - Đăng ký nghỉ / dạy bù theo thời khóa biểu tuần */
.admin-shell-wide{width:calc(100% - 22px)!important;max-width:none!important}
.makeup-week-card{padding:16px 18px;margin-bottom:18px}
.makeup-week-head{display:flex;justify-content:space-between;gap:14px;align-items:flex-start;margin-bottom:10px}
.makeup-week-head h2{margin:0 0 4px}.makeup-week-head p{margin:0}
.makeup-board-toolbar{display:flex;justify-content:space-between;gap:12px;align-items:center;margin:10px 0 12px}
.makeup-board-toolbar .search{flex:1;max-width:620px}
.makeup-board-wrap{max-height:66vh;overflow:auto}
.makeup-board{min-width:1500px;table-layout:fixed;border-collapse:separate;border-spacing:0}
.makeup-board thead th{position:sticky;top:0;z-index:8;background:#e9f0f6;text-align:center}
.makeup-board th:nth-child(1){width:185px;min-width:185px;position:sticky;left:0;z-index:12}
.makeup-board th:nth-child(2){width:290px;min-width:290px;position:sticky;left:185px;z-index:12}
.makeup-board td:nth-child(1){position:sticky;left:0;z-index:4;background:#f8fbfe;vertical-align:middle}
.makeup-board td:nth-child(2){position:sticky;left:185px;z-index:4;background:#f8fbfe;vertical-align:middle}
.makeup-board-cell{text-align:center;vertical-align:middle!important;min-width:135px}
.makeup-actions{display:flex;gap:6px;flex-direction:column;align-items:stretch}.makeup-actions form{margin:0}
.btn.tiny{font-size:12px;padding:7px 8px;border-radius:8px;line-height:1.1;width:100%}
.btn.warning{background:#fff3d8;color:#8b5700;border:1px solid #f2c269}.btn.warning:hover{background:#ffe9b7}
.makeup-status{display:flex;flex-direction:column;gap:6px;padding:9px;border-radius:10px;text-align:left}.makeup-status.pending{background:#fff3e8;border:1px solid #f1c596;color:#8a4a00}.makeup-status.done{background:#eaf8ef;border:1px solid #9fd4ae;color:#176833}.makeup-status span{font-size:12px}
.pending-summary{display:flex;align-items:center;gap:10px;padding:12px 16px;border-radius:12px;background:#f5f8fb;border:1px solid #dce5ed;margin:0 0 18px}.pending-summary strong{font-size:22px}.pending-summary span{font-weight:700}.pending-summary small{color:#68798a}.pending-summary.has-pending{background:#fff6e9;border-color:#f0c88c;color:#7e4b00}
.badge.pending{background:#fff0d7!important;color:#9a5700!important;border-color:#f0c06b!important}.pending-makeup-row>td{background:#fffaf1}.pending-text{color:#b05a00;font-weight:700}
.conflict-list{margin:8px 0 0 18px;padding:0}.conflict-list li{margin:5px 0}
#targetClass{min-width:220px}
@media(max-width:900px){.makeup-week-head,.makeup-board-toolbar{flex-direction:column;align-items:stretch}.makeup-board-toolbar .search{max-width:none}.makeup-board th:nth-child(1){width:150px;min-width:150px}.makeup-board th:nth-child(2){left:150px;width:240px;min-width:240px}.makeup-board td:nth-child(2){left:150px}}
.makeup-conflict-box{padding:12px 14px;border-radius:10px;border:1px solid #d5e1eb;background:#f7fafc}.makeup-conflict-box.has-conflict{background:#fff0f0;border-color:#efb2b2;color:#9c1f1f}.makeup-conflict-box.clear{background:#edf9f1;border-color:#aad7b6;color:#176b35}.makeup-conflict-box ul{margin:7px 0 0 18px;padding:0}.makeup-conflict-box li{margin:4px 0}

/* v2.5.8 - Tách đăng ký nghỉ bù và điều chỉnh lịch bù */
.pending-lecturers-card{padding:16px 18px;margin-bottom:18px;border:1px solid #dce5ed;background:#f8fbfd}
.pending-lecturers-card.has-pending{background:#fff8ed;border-color:#f0c98f}
.pending-lecturers-head{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;margin-bottom:12px}
.pending-lecturers-head h2{margin:0 0 4px}.pending-lecturers-head p{margin:0}
.pending-big-count{display:inline-flex;align-items:center;justify-content:center;min-width:78px;padding:10px 12px;border-radius:12px;background:#fff0d8;color:#8a4e00;font-weight:800}
.pending-all-clear{padding:12px 14px;border-radius:10px;background:#edf9f1;color:#176b35;border:1px solid #aad7b6}
.pending-lecturer-pills{display:flex;gap:10px;flex-wrap:wrap}
.pending-lecturer-pill{display:flex;flex-direction:column;gap:2px;min-width:210px;padding:11px 13px;border-radius:12px;border:1px solid #edc37c;background:#fff;color:#513300;text-decoration:none}
.pending-lecturer-pill:hover,.pending-lecturer-pill.active{background:#ffe9bd;border-color:#dd9f38}
.pending-lecturer-pill span{font-size:12px;color:#7e5b24}.pending-lecturer-pill small{font-size:12px;color:#6e5a3c;line-height:1.35}
.pending-lecturer-pill.view-all{border-color:#cdd9e4;background:#f5f8fb;color:#23445d}
.makeup-edit-card{scroll-margin-top:16px;border:2px solid #cfe2f1}
.makeup-edit-title{display:flex;justify-content:space-between;gap:14px;align-items:flex-start;margin-bottom:12px}
.makeup-edit-title h2{margin:0 0 4px}.makeup-edit-title p{margin:0;color:#65798b}
@media(max-width:900px){.pending-lecturers-head,.makeup-edit-title{flex-direction:column}.pending-big-count{min-width:0}.pending-lecturer-pill{min-width:100%;width:100%}}

/* v2.5.9 - Tăng độ tương phản nút thao tác lịch bù */
.btn.warning{
  background:#fff3d8!important;
  color:#7a4300!important;
  border:1px solid #e8ad3e!important;
  box-shadow:0 1px 2px rgba(122,67,0,.08);
}
.btn.warning:hover,
.btn.warning:focus{
  background:#ffe6ad!important;
  color:#5f3400!important;
  border-color:#d99a24!important;
}
.btn.warning:visited{color:#7a4300!important;}