:root{
  --ink:#123D2B;
  --ink-soft:#4C665A;
  --paper:#E8F3EC;
  --surface:#FFFFFF;
  --border:#E1E6E4;
  --border-soft:#EBEFED;
  --accent:#249B62;
  --accent-ink:#12603A;
  --accent-soft:#DDF2E5;
  --good:#3F7857;
  --good-soft:#E6F1EA;
  --info:#3E6690;
  --info-soft:#E7EEF5;
  --warn:#B5792A;
  --warn-soft:#FBEDD9;
  --danger:#AA4136;
  --danger-soft:#F8E7E4;
  --radius-s:6px;
  --radius-m:10px;
  --radius-l:16px;
  --shadow-modal: 0 20px 50px -12px rgba(22,40,61,0.35);
  --font-ui:'Montserrat',Arial,sans-serif;
  --font-display:'Montserrat',Arial,sans-serif;
}
:root,
body.dark-mode{
  color-scheme:light;
}
body.dark-mode{
  --ink:#E4F0E8;
  --ink-soft:#A8BDB0;
  --paper:#17221D;
  --surface:#223129;
  --border:#3C5146;
  --border-soft:#31443A;
  --accent-soft:#294E3B;
  --accent-ink:#9DE0B6;
  --good-soft:#a5f3c7;
  --info-soft:#263F54;
  --warn-soft:#554329;
  --danger-soft:#512D2A;
  color-scheme:dark;
}
*,*::before,*::after{box-sizing:border-box;}
html,body{height:100%;}
body{
  margin:0;
  font-family:var(--font-ui);
  background:var(--paper);
  color:var(--ink);
  font-size:14px;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-family:var(--font-display);font-weight:600;color:var(--ink);}
p{margin:0;}
button{font-family:inherit;}
a{color:inherit;}
::selection{background:var(--accent-soft);}

/* Default icon size — safety net for any <svg> used inline without a sized
   container (e.g. next to text). More specific rules below (.btn svg,
   .nav-item svg, .empty-state svg, etc.) override this via higher specificity. */
svg{width:16px;height:16px;flex-shrink:0;vertical-align:-3px;}

/* ---------- Scrollbars (subtle) ---------- */
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:transparent;}
::-webkit-scrollbar-thumb{background:#D3D9D7;border-radius:8px;border:2px solid var(--paper);}

/* ---------- App shell ---------- */
#app{display:flex;min-height:100vh;}

.sidebar{
  width:280px;
  flex-shrink:0;
  background:#FFFFFF;
  color:var(--ink);
  display:flex;
  flex-direction:column;
  position:fixed;
  top:0;left:0;bottom:0;
  z-index:40;
  transition:width .25s ease,transform .25s ease;
}
body.dark-mode .sidebar,
body.dark-mode .card,
body.dark-mode .table-wrap,
body.dark-mode .modal,
body.dark-mode .combo-list,
body.dark-mode .search-box,
body.dark-mode select,
body.dark-mode .field input,
body.dark-mode .field textarea{background:var(--surface);}
body.dark-mode .combo-list,
body.dark-mode .att-status-select,
body.dark-mode .prog-status-select,
body.dark-mode select,
body.dark-mode .field input,
body.dark-mode .field textarea,
body.dark-mode .field select,
body.dark-mode option{
  background:#FFFFFF !important;
  color:var(--ink) !important;
}
body.dark-mode .att-status-select option,
body.dark-mode .prog-status-select option,
body.dark-mode select option{
  background:#FFFFFF !important;
  color:var(--ink) !important;
}
.brand{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  padding:22px 16px 20px;
  border-bottom:1px solid var(--border);
}
.brand-logo{
  width:204px;height:74px;
  object-fit:contain;
  display:block;
  flex-shrink:0;
}
.brand-copy{width:100%;min-width:0;text-align:center;}
.brand-text{font-family:var(--font-display);font-size:16px;font-weight:600;color:var(--ink);line-height:1.12;}
.brand-sub{font-size:11px;color:var(--ink-soft);margin-top:5px;line-height:1.25;}

.nav{flex:1;overflow-y:auto;padding:6px 12px;}
.nav-group-label{font-size:11px;color:#6E8093;padding:14px 10px 6px;font-weight:500;}
.nav-item{
  display:flex;align-items:center;gap:11px;
  padding:9px 12px;margin-bottom:2px;
  border-radius:var(--radius-s);
  cursor:pointer;
  color:var(--ink-soft);
  font-size:13.5px;
  font-weight:500;
  user-select:none;
  border:1px solid transparent;
}
.nav-item svg{width:17px;height:17px;flex-shrink:0;opacity:.85;}
.nav-item:hover{background:var(--accent-soft);color:var(--ink);}
.nav-item.active{background:var(--accent-soft);color:var(--ink);border-color:#B9DEC7;}
.nav-item.active svg{opacity:1;color:var(--accent);}
.nav-item .count{margin-left:auto;font-size:11px;color:#8FA0B3;background:rgba(255,255,255,0.07);padding:1px 7px;border-radius:20px;}
.nav-item.active .count{color:var(--accent-ink);background:var(--accent-soft);}

.sidebar-foot{padding:12px;border-top:1px solid var(--border);}

.main{
  margin-left:280px;
  flex:1;
  min-width:0;
  display:flex;
  flex-direction:column;
  transition:margin-left .25s ease,margin-right .25s ease;
}
body.sidebar-right .sidebar{left:auto;right:0;}
body.sidebar-right .main{margin-left:0;margin-right:280px;}
.sidebar.collapsed{width:76px;}
.sidebar.collapsed + .main{margin-left:76px;}
body.sidebar-right .sidebar.collapsed + .main{margin-left:0;margin-right:76px;}
.sidebar.collapsed .brand{padding-left:10px;padding-right:10px;}
.sidebar.collapsed .brand{flex-direction:column;}
.sidebar.collapsed .brand-logo{width:48px;height:48px;object-fit:cover;object-position:left center;}
.sidebar.collapsed .nav-item{justify-content:center;padding-left:8px;padding-right:8px;}
.sidebar.collapsed .nav-item span,
.sidebar.collapsed .brand-copy,
.sidebar.collapsed .sidebar-user,
.sidebar.collapsed .sidebar-foot span{display:none;}
.sidebar.collapsed .sidebar-foot{padding:12px 8px;}
.topbar{
  position:sticky;top:0;z-index:30;
  background:rgba(232,243,236,0.9);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--border);
  padding:18px 34px;
}
body.dark-mode .topbar{background:rgba(23,34,29,.92);}
.topbar-inner{
  max-width:1400px;margin:0 auto;width:100%;
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;
}
.topbar-leading{display:flex;align-items:center;gap:12px;}
body.sidebar-right .topbar-leading{order:2;}
body.sidebar-right .topbar-right{order:1;}
.topbar-title{display:flex;align-items:baseline;gap:10px;}
.topbar-title h1{font-size:22px;}
.topbar-sub{color:var(--ink-soft);font-size:13px;}
.topbar-actions{display:flex;gap:10px;align-items:center;}
.topbar-right{display:flex;align-items:center;gap:16px;}
.topbar-preferences{display:flex;align-items:center;gap:2px;}
.topbar-preferences .btn{padding:8px;color:var(--ink-soft);}
.topbar-preferences .btn:hover{color:var(--ink);background:var(--accent-soft);}
.topbar-date{font-size:13px;color:var(--ink-soft);white-space:nowrap;text-transform:capitalize;}
.menu-btn{display:inline-flex;}

.view{padding:28px 34px 64px;max-width:1560px;margin:0 auto;width:100%;}
.view[hidden]{display:none;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:7px;
  padding:11px 18px;
  border-radius:var(--radius-s);
  border:1px solid var(--border);
  background:var(--surface);
  color:var(--ink);
  font-size:13.5px;
  font-weight:500;
  cursor:pointer;
  white-space:nowrap;
  transition:background .15s, border-color .15s;
}
.btn svg{width:15px;height:15px;}
.btn:hover{background:#F7F8F7;border-color:#D2D8D6;}
.btn-primary{background:var(--ink);border-color:var(--ink);color:#fff;}
.btn-primary:hover{background:#0F1D2C;border-color:#0F1D2C;}
.btn-accent{background:var(--accent);border-color:var(--accent);color:#3A2707;}
.btn-accent:hover{background:#CD9330;border-color:#CD9330;}
.btn-danger{color:var(--danger);}
.btn-danger:hover{background:var(--danger-soft);border-color:#E9C7C1;}
.btn-ghost{border-color:transparent;background:transparent;}
.btn-ghost:hover{background:#EAEDEB;}
.btn-sm{padding:5px 10px;font-size:12.5px;}
.btn-icon{padding:8px;}
.btn:disabled{opacity:.45;cursor:not-allowed;}

/* ---------- Cards / KPIs ---------- */
.grid{display:grid;gap:20px;}
.kpi-grid{grid-template-columns:repeat(4,1fr);margin-bottom:20px;}
.card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-m);
  padding:22px 24px;
  animation:card-reveal .42s ease both;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:0 8px 18px rgba(22,40,61,.08);border-color:#C8D8CF;}
.kpi-grid .card:nth-child(2){animation-delay:.06s;}
.kpi-grid .card:nth-child(3){animation-delay:.12s;}
.kpi-grid .card:nth-child(4){animation-delay:.18s;}
@keyframes card-reveal{
  from{opacity:0;transform:translateY(10px);}
  to{opacity:1;transform:translateY(0);}
}
.kpi-card .kpi-label{font-size:12.5px;color:var(--ink-soft);font-weight:500;}
.kpi-card .kpi-value{font-family:var(--font-display);font-size:32px;font-weight:600;margin-top:6px;color:var(--ink);}
.kpi-card .kpi-detail{font-size:12px;color:var(--ink-soft);margin-top:6px;}
.kpi-card .kpi-detail b{color:var(--good);font-weight:600;}

.section-title{display:flex;align-items:center;justify-content:space-between;margin:28px 0 12px;}
.section-title h2{font-size:16px;}
.section-title .hint{font-size:12.5px;color:var(--ink-soft);}

.two-col{grid-template-columns:1.4fr 1fr;align-items:start;}

/* ---------- Tables ---------- */
.table-wrap{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-m);overflow:hidden;}
.table-wrap{animation:card-reveal .5s ease .12s both;}
table{width:100%;border-collapse:collapse;font-size:13.5px;}
.classes-table-wrap{overflow-x:auto;}
.classes-table{min-width:1180px;table-layout:auto;border-collapse:separate;border-spacing:0;}
.classes-table th,.classes-table td{border-left:1px solid var(--border-soft);}
.classes-table th:first-child,.classes-table td:first-child{border-left:none;}
.classes-table thead th:first-child,
.classes-table thead th:nth-child(2),
.classes-table tbody td:first-child,
.classes-table tbody td:nth-child(2){
  position:sticky;left:0;z-index:2;background:var(--surface);
}
.classes-table thead th:first-child,
.classes-table thead th:nth-child(2){background:var(--accent-soft);}
.classes-table thead th:first-child{left:0;}
.classes-table thead th:nth-child(2){left:118px;}
.classes-table tbody td:first-child{background:var(--surface);}
.classes-table tbody td:nth-child(2){background:var(--surface);}
thead th{
  text-align:center;font-weight:700;color:var(--ink);
  font-size:14px;
  padding:12px 14px;
  border-bottom:2px solid #B9DEC7;
  background:var(--accent-soft);
  white-space:nowrap;
  border-left:1px solid rgba(17,52,44,.07);
}
thead th:first-child{border-left:none;}

.classes-table th:nth-child(9),
.classes-table td:nth-child(9){
  text-align:center;
}
tbody td{padding:11px 14px;border-bottom:1px solid var(--border-soft);vertical-align:middle;}
tbody tr:last-child td{border-bottom:none;}
tbody tr.clickable{cursor:pointer;}
tbody tr.clickable:hover{background:#FAFAF8;}
body.dark-mode tbody tr.clickable:hover,
body.dark-mode .combo-item:hover,
body.dark-mode .combo-item.hi{background:#2B4034;}
td.num, th.num{text-align:right;font-variant-numeric:tabular-nums;}
.row-actions{display:flex;gap:6px;justify-content:flex-end;}
.name-cell{font-weight:500;color:var(--ink);}
.sub-cell{font-size:12px;color:var(--ink-soft);margin-top:1px;}
.classes-table tbody td{padding:14px 12px;}
.classes-table .class-id-cell{min-width:116px;width:auto;font-weight:700;font-size:14px;text-align:center;white-space:nowrap;}
.classes-table .class-course-cell{min-width:190px;text-align:center;}
.classes-table .class-course-cell strong,.classes-table .class-course-cell .sub-cell,.classes-table .class-course-cell .class-tag{display:block;text-align:center;}
.classes-table .class-schedule-cell{min-width:145px;white-space:nowrap;text-align:center;}
.classes-table .class-schedule-cell strong,.classes-table .class-schedule-cell .sub-cell{display:block;text-align:center;}
.classes-table .class-date-cell{min-width:112px;white-space:nowrap;text-align:center;}
.classes-table .class-room-cell{min-width:82px;white-space:nowrap;text-align:center;}
.classes-table .class-teacher-cell{min-width:205px;white-space:nowrap;text-align:center;}
.classes-table .class-teacher-cell strong,.classes-table .class-teacher-cell .sub-cell{font-weight:700;display:block;text-align:center;}
.classes-table .class-size-cell{min-width:100px;text-align:center;white-space:nowrap;vertical-align:middle;}
.classes-table .class-size-main{display:inline-block;font-size:15px;font-weight:700;color:var(--ink);white-space:nowrap;line-height:1.2;}
.classes-table .class-size-cell .sub-cell{display:block;text-align:center;white-space:nowrap;}
.class-size-warning{color:var(--warn);font-weight:600;}
.empty-row td{padding:38px 14px;text-align:center;color:var(--ink-soft);}

/* ---------- Badges/pills ---------- */
.pill{
  display:inline-flex;align-items:center;gap:5px;
  padding:3px 9px;border-radius:20px;
  font-size:12px;font-weight:500;
  white-space:nowrap;
}
.pill::before{content:'';width:6px;height:6px;border-radius:50%;background:currentColor;}
.pill-good{background:var(--good-soft);color:var(--good);}
.pill-info{background:var(--info-soft);color:var(--info);}
.pill-warn{background:var(--warn-soft);color:var(--warn);}
.pill-danger{background:var(--danger-soft);color:var(--danger);}
.pill-neutral{background:#EEF0EF;color:var(--ink-soft);}

/* ---------- Toolbar / filters ---------- */
.toolbar{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-bottom:20px;}
.toolbar .spacer{flex:1;}
.search-box{
  display:flex;align-items:center;gap:8px;
  border:1px solid var(--border);background:var(--surface);
  border-radius:var(--radius-s);padding:10px 14px;min-width:260px;
}
.search-box svg{width:15px;height:15px;color:var(--ink-soft);flex-shrink:0;}
.search-box input{border:none;outline:none;font-size:13.5px;font-family:inherit;width:100%;background:transparent;color:var(--ink);}
select, .field input, .field textarea{
  font-family:inherit;font-size:13.5px;color:var(--ink);
  border:1px solid var(--border);border-radius:var(--radius-s);
  padding:10px 13px;background:var(--surface);outline:none;
}
select{cursor:pointer;}
.field select, .field input, .field textarea{width:100%;box-sizing:border-box;}
select:focus,.field input:focus,.field textarea:focus,.search-box:focus-within{border-color:#B9C3CC;}

/* ---------- Forms / modal ---------- */
.overlay{
  position:fixed;inset:0;background:rgba(18,61,43,0.86);
  display:flex;align-items:flex-start;justify-content:center;
  padding:5vh 16px;overflow-y:auto;isolation:isolate;
  z-index:100;
}
.overlay[hidden]{display:none;}
.modal{
  background:#FFFFFF;border-radius:var(--radius-l);opacity:1;
  width:100%;max-width:560px;
  box-shadow:var(--shadow-modal);
  animation:pop .16s ease;
  margin-bottom:5vh;
}
.modal.wide{max-width:820px;}
@keyframes pop{from{opacity:0;transform:translateY(6px) scale(.99);}to{opacity:1;transform:none;}}
.modal-head,.modal-body,.modal-foot{background:#FFFFFF;}
.modal-head{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;border-bottom:1px solid var(--border);}
.modal-head h3{font-size:17px;}
.modal-body{padding:20px 22px;max-height:68vh;overflow-y:auto;overflow-x:hidden;}
.modal-foot{padding:16px 22px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:10px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.field{display:flex;flex-direction:column;gap:6px;min-width:0;}
.field.full{grid-column:1/-1;}
.field label{font-size:12.5px;font-weight:500;color:var(--ink-soft);}
.field textarea{resize:vertical;min-height:64px;}
.field-hint{font-size:11.5px;color:#8B9AA6;}
.check-list{display:flex;flex-direction:column;gap:10px;}
.choice-checkbox{
  display:flex;align-items:center;gap:10px;
  padding:2px 0;font-size:14px;line-height:1.4;
  color:var(--ink);cursor:pointer;user-select:none;
}
.choice-checkbox input[type="checkbox"]{
  width:16px;height:16px;flex-shrink:0;
  margin:0;cursor:pointer;accent-color:var(--ink);
}
.day-picker{display:flex;gap:6px;flex-wrap:wrap;}
.day-chip{
  padding:6px 10px;border:1px solid var(--border);border-radius:20px;
  font-size:12.5px;cursor:pointer;user-select:none;color:var(--ink-soft);
}
.day-chip.on{background:var(--ink);color:#fff;border-color:var(--ink);}

/* ---------- Toast ---------- */
#toast-host{position:fixed;bottom:22px;left:50%;transform:translateX(-50%);z-index:200;display:flex;flex-direction:column;gap:8px;align-items:center;}
.toast{
  background:var(--ink);color:#fff;padding:10px 18px;border-radius:30px;
  font-size:13px;box-shadow:0 10px 30px -8px rgba(0,0,0,.4);
  display:flex;align-items:center;gap:8px;
  animation:toastin .18s ease;
}
.toast svg{width:15px;height:15px;color:var(--accent);}
@keyframes toastin{from{opacity:0;transform:translateY(8px);}to{opacity:1;transform:none;}}

/* ---------- Attendance / progress grid ---------- */
.grid-wrap{overflow-x:auto;background:var(--surface);border:1px solid #D7E1DC;border-radius:18px;box-shadow:0 8px 24px -18px rgba(17,52,44,.28);}
.att-grid{border-collapse:separate;border-spacing:0;font-size:13px;min-width:100%;table-layout:auto;}
.att-grid th,.att-grid td{border-bottom:1px solid var(--border-soft);padding:0;vertical-align:middle;}
.att-grid thead th{background:#0E6B5C;border-bottom:1px solid rgba(255,255,255,.18);padding:16px 10px 14px;text-align:center;font-weight:700;color:#ffffff;font-size:12px;line-height:1.25;letter-spacing:.02em;}
.att-grid thead th.student-col{text-align:left;padding-left:18px;position:sticky;left:0;background:#0E6B5C;z-index:2;min-width:180px;width:180px;}
.att-grid td.student-col{position:sticky;left:0;background:#F7FBF9;z-index:1;padding:12px 18px;min-width:180px;width:180px;border-right:1px solid var(--border-soft);}
.att-grid tbody tr:nth-child(odd) td.student-col{background:#F7FBF9;}
.att-grid tbody tr:nth-child(even) td.student-col{background:#F3F8F5;}
.att-grid tbody tr:hover td.student-col{background:#EEF7F2;}
.att-grid td.cell-wrap{text-align:center;padding:10px 8px;}
.name-cell{font-weight:600;color:var(--ink);font-size:15px;letter-spacing:-.01em;line-height:1.3;white-space:normal;}
.att-cell{
  width:34px;height:30px;border-radius:7px;border:1px dashed #D8DEDC;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:600;cursor:pointer;color:#B6BEC1;
  user-select:none;
}
.att-cell:hover{border-color:#AEB8B5;}
.att-cell.st-present{background:var(--good-soft);color:var(--good);border-style:solid;border-color:transparent;}
.att-cell.st-excused{background:var(--info-soft);color:var(--info);border-style:solid;border-color:transparent;}
.att-cell.st-unexcused{background:var(--danger-soft);color:var(--danger);border-style:solid;border-color:transparent;}
.att-status-select,
.prog-status-select{
  appearance:none;
  -webkit-appearance:none;
  border:none;
  outline:none;
  display:inline-block;
  width:auto;
  min-width:110px;
  max-width:160px;
  height:42px;
  padding:7px 30px 7px 12px;
  border-radius:12px;
  font-size:12px;
  font-weight:700;
  color:var(--ink-soft);
  background:var(--surface-soft,#F3F5F4);
  border:1px solid #D7E1DC;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2362747A' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 12px center;
  cursor:pointer;
  transition:all .15s ease;
  white-space:nowrap;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.35);
  margin:0 auto;
  line-height:1.2;
  text-align:left;
}
.att-status-select.st-present,
.prog-status-select.hw-done{
  background-color:#DCEEE7;
  color:#1D6C59;
  border-color:#BFE0D2;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%231D6C59' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
}
.prog-status-select.abs-good{
  background-color:#7A5FC7;
  color:#ffffff;
  border-color:transparent;
  box-shadow:inset 0 0 0 1px rgba(122,95,199,.12);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
}
.prog-status-select.abs-progress_done{
  background-color:#2A8B6A;
  color:#ffffff;
  border-color:transparent;
  box-shadow:inset 0 0 0 1px rgba(28,122,91,.1);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
}
.att-status-select.st-excused,
.prog-status-select.abs-fair{
  background-color:#F7E8C7;
  color:#AF7D2D;
  border-color:#EAD6A2;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23AF7D2D' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
}
.prog-status-select.hw-missing{
  background-color:#F1D9D4;
  color:#A85D52;
  border-color:#E4BDB6;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23A85D52' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
}
.prog-status-select.abs-progress_missing{
  background-color:#F1D9D4;
  color:#A85D52;
  border-color:#E4BDB6;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23A85D52' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
}
.att-status-select.st-unexcused,
.prog-status-select.abs-needs_focus{
  background-color:#E7ECEA;
  color:#586B66;
  border-color:#D2DBD8;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23586B66' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
}
.att-status-select.st-empty,
.prog-status-select.st-empty {
  background-color:#EDF2F0;
  color:#546E66;
  border-color:#D7E1DC;
}
.prog-cell{min-width:170px;padding:7px 8px!important;}
.prog-cell .prog-status-select{display:inline-block;width:auto;min-width:110px;max-width:160px;margin:0 auto 6px;}
.prog-cell .prog-status-select:last-child{margin-bottom:0;}
.prog-pill{display:flex;flex-direction:column;gap:3px;align-items:center;border:1px dashed #D8DEDC;border-radius:7px;padding:5px 4px;cursor:pointer;}
.prog-pill:hover{border-color:#AEB8B5;}
.prog-pill.has-data{border-style:solid;border-color:transparent;background:#F5F7F6;}
.dot{width:7px;height:7px;border-radius:50%;background:#D3D9D7;}
.dot.good{background:#7A5FC7;}
.dot.fair{background:var(--info);}
.dot.needs{background:var(--warn);}
.dot.done{background:var(--good);}
.dot.missing{background:var(--danger);}
.rate-col{font-variant-numeric:tabular-nums;font-weight:600;}

.legend{display:flex;gap:16px;flex-wrap:wrap;margin:14px 2px 0;font-size:12.5px;color:var(--ink-soft);}
.legend span{display:inline-flex;align-items:center;gap:6px;}
.legend .sw{width:11px;height:11px;border-radius:3px;display:inline-block;}

.info-strip{
  display:flex;flex-wrap:wrap;gap:22px;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-m);
  padding:14px 18px;margin-bottom:16px;font-size:13px;
}
.info-strip .it b{display:block;font-size:11.5px;color:var(--ink-soft);font-weight:700;margin-bottom:2px;}

/* ---------- Report / profile ---------- */
.profile-head{display:flex;align-items:center;gap:16px;margin-bottom:18px;}
.avatar{
  width:54px;height:54px;border-radius:14px;background:var(--accent-soft);color:var(--accent-ink);
  display:flex;align-items:center;justify-content:center;font-family:var(--font-display);font-size:20px;font-weight:600;flex-shrink:0;
}
.profile-name{font-size:20px;}
.profile-meta{color:var(--ink-soft);font-size:13px;margin-top:2px;}
.stat-row{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:18px;}
.stat-box{flex:1;min-width:130px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-m);padding:14px 16px;}
.stat-box .v{font-family:var(--font-display);font-size:24px;font-weight:600;}
.stat-box .l{font-size:12px;color:var(--ink-soft);margin-top:2px;}
.timeline{display:flex;flex-direction:column;}
.timeline-item{display:flex;gap:12px;padding:10px 0;border-bottom:1px solid var(--border-soft);}
.timeline-item:last-child{border-bottom:none;}
.timeline-date{width:78px;flex-shrink:0;font-size:12px;color:var(--ink-soft);padding-top:2px;}
.timeline-body{font-size:13.5px;}
.timeline-body .t-note{color:var(--ink-soft);font-size:12.5px;margin-top:2px;}

.empty-state{text-align:center;padding:60px 20px;color:var(--ink-soft);}
.empty-state svg{width:40px;height:40px;color:#C7CFCC;margin-bottom:12px;}
.empty-state h3{font-size:15px;color:var(--ink);margin-bottom:6px;}
.empty-state p{font-size:13px;max-width:340px;margin:0 auto;}

.settings-grid{grid-template-columns:1fr 1fr;}
.settings-card h3{font-size:14.5px;margin-bottom:6px;}
.settings-card p{font-size:12.5px;color:var(--ink-soft);margin-bottom:14px;line-height:1.6;}
.settings-card .row{display:flex;gap:10px;flex-wrap:wrap;}

.combo{position:relative;}
.combo-list{
  position:absolute;top:calc(100% + 4px);left:0;right:0;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-m);
  box-shadow:0 12px 28px -10px rgba(22,40,61,.25);
  max-height:220px;overflow-y:auto;z-index:20;
}
.combo-list[hidden]{display:none;}
.combo-item{padding:9px 13px;font-size:13px;cursor:pointer;}
.combo-item:hover, .combo-item.hi{background:#F3F5F4;}
.combo-item .sub{font-size:11.5px;color:var(--ink-soft);}

/* ---------------- Role pill (admin/teacher) ---------------- */
.pill-accent{background:var(--accent-soft);color:var(--accent-ink);}

/* ---------------- Sidebar account block ---------------- */
.sidebar-user{padding:12px;border-top:1px solid var(--border);}
.sidebar-user .u-name{color:var(--ink);font-size:13px;font-weight:600;line-height:1.3;}
.sidebar-user .u-email{color:var(--ink-soft);font-size:11px;margin:1px 0 8px;word-break:break-all;}
.sidebar-user .u-role{display:inline-block;font-size:10.5px;padding:2px 8px;border-radius:12px;background:rgba(221,162,58,0.16);color:var(--accent);margin-bottom:10px;font-weight:500;}
.sidebar-user .logout-btn{width:100%;justify-content:center;background:#F4FAF6;border-color:#CFE4D5;color:var(--ink);}
.sidebar-user .logout-btn:hover{background:var(--accent-soft);}

/* ---------------- Auth pages (index.html) ---------------- */
.auth-body{margin:0;min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--paper);font-family:var(--font-ui);padding:24px;color:var(--ink);}
.auth-wrap{width:100%;max-width:420px;}
.auth-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-l);padding:32px 28px;box-shadow:0 30px 60px -30px rgba(22,40,61,.28);}
.auth-logo{display:flex;flex-direction:column;align-items:flex-start;gap:8px;margin-bottom:26px;}
.auth-logo .brand-logo{width:100%;height:auto;max-height:104px;object-fit:contain;}
.auth-logo .brand-copy{width:100%;}
.auth-logo .brand-text{display:none;}
.auth-logo .brand-sub{font-size:12px;}
.auth-title{font-size:20px;margin-bottom:4px;}
.auth-sub{font-size:13px;color:var(--ink-soft);margin-bottom:18px;line-height:1.55;}
.auth-btn{width:100%;justify-content:center;margin-top:8px;}
.auth-alert{background:var(--danger-soft);color:var(--danger);font-size:12.5px;padding:9px 12px;border-radius:var(--radius-s);margin-bottom:14px;line-height:1.5;}
.auth-foot-note{font-size:11.5px;color:#8B9AA6;text-align:center;margin-top:22px;line-height:1.6;}
.class-tag{display:inline-flex;align-items:center;padding:2px 7px;margin-left:5px;border-radius:999px;font-size:10.5px;font-weight:600;line-height:1.2;vertical-align:2px;white-space:nowrap;}
.class-tag-toeic{background:#FBE8D5;color:#A85A16;}
.class-tag-ielts{background:#E5E2F8;color:#5E4B9A;}
.class-tag-hsk{background:#F9E1E3;color:#A43B49;}
.class-tag-giao-ti-p{background:#DDF1F7;color:#1C6A80;}
.class-tag-teen{background:#FFF0C9;color:#88630C;}
.class-tag-thi-u-nhi{background:#DDF2E5;color:#12603A;}
.class-tag-kh-c{background:#EEF0EF;color:var(--ink-soft);}

@media (max-width:960px){
  .kpi-grid{grid-template-columns:repeat(2,1fr);}
  .two-col{grid-template-columns:1fr;}
  .settings-grid{grid-template-columns:1fr;}
}
@media (max-width:760px){
  .sidebar.collapsed{width:236px;}
  .sidebar.collapsed + .main{margin-left:0;}
  .sidebar{transform:translateX(-100%);}
  .sidebar.open{transform:translateX(0);box-shadow:0 0 0 100vmax rgba(0,0,0,.35);}
  .main{margin-left:0;}
  body.sidebar-right .sidebar{transform:translateX(100%);}
  body.sidebar-right .sidebar.open{transform:translateX(0);}
  body.sidebar-right .main,
  body.sidebar-right .sidebar.collapsed + .main{margin-right:0;}
  .topbar{padding:14px 16px;}
  .topbar-leading,.topbar-right{width:100%;}
  body.sidebar-right .topbar-leading{justify-content:flex-end;}
  .topbar-right{gap:8px;}
  .topbar-date{font-size:11.5px;}
  .view{padding:16px 16px 60px;}
  .kpi-grid{grid-template-columns:1fr 1fr;}
  .form-grid{grid-template-columns:1fr;}
  .modal-body{max-height:74vh;}
}
@media (max-width:480px){
  .kpi-grid{grid-template-columns:1fr;}
  .topbar-title h1{font-size:18px;}
  .stat-row{flex-direction:column;}
  .profile-head{flex-wrap:wrap;}
  .modal{max-width:100%;}
  .day-picker{gap:5px;}
  .toolbar{gap:8px;}
}