@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@300;400;500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap');

/* ==================== DARK THEME (DEFAULT) ==================== */
:root {
  --bg: #0f1117; --bg2: #171923; --bg3: #1e2130;
  --border: rgba(255,255,255,0.08); --border2: rgba(255,255,255,0.14);
  --text: #e8eaf0; --text2: #8b90a0; --text3: #555b70;
  --accent: #4f8ef7; --accent2: #3a6fd4;
  --green: #34d399; --amber: #fbbf24; --red: #f87171; --purple: #a78bfa; --teal: #2dd4bf;
  --font: 'IBM Plex Sans', system-ui, sans-serif;
  --mono: 'IBM Plex Mono', monospace;
  --shadow: 0 2px 8px rgba(0,0,0,0.3);
  --chart-grid: rgba(255,255,255,0.05);
  --chart-text: #555b70;
  --chart-legend: #8b90a0;
  --table-header-bg: rgba(0,0,0,0.2);
  --row-hover: rgba(255,255,255,0.025);
  --pill-blue-bg: rgba(79,142,247,0.15); --pill-green-bg: rgba(52,211,153,0.15);
  --pill-amber-bg: rgba(251,191,36,0.15); --pill-purple-bg: rgba(167,139,250,0.15);
  --pill-teal-bg: rgba(45,212,191,0.15); --pill-red-bg: rgba(248,113,113,0.15);
  --accent-badge-bg: rgba(79,142,247,0.15); --accent-badge-border: rgba(79,142,247,0.3);
  --green-badge-bg: rgba(52,211,153,0.1); --green-badge-border: rgba(52,211,153,0.3);
  --btn-hover-bg: rgba(255,255,255,0.07); --btn-hover-border: rgba(255,255,255,0.2);
  --export-bg: rgba(52,211,153,0.1); --export-border: rgba(52,211,153,0.3);
  --export-hover: rgba(52,211,153,0.2);
  --danger-bg: rgba(248,113,113,0.15); --danger-border: rgba(248,113,113,0.3);
  --success-bg: rgba(52,211,153,0.15); --success-border: rgba(52,211,153,0.4);
  --upload-hover-bg: rgba(79,142,247,0.05); --upload-active-bg: rgba(79,142,247,0.1);
  --theme-icon: "🌙";
}

/* ==================== LIGHT THEME ==================== */
html.light {
  --bg: #f4f5f9; --bg2: #ffffff; --bg3: #eceef3;
  --border: rgba(0,0,0,0.07); --border2: rgba(0,0,0,0.12);
  --text: #1a1d2e; --text2: #5a5f73; --text3: #8b90a0;
  --accent: #3b7cf5; --accent2: #2563EB;
  --green: #059669; --amber: #d97706; --red: #dc2626; --purple: #7c3aed; --teal: #0d9488;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
  --chart-grid: rgba(0,0,0,0.06);
  --chart-text: #8b90a0;
  --chart-legend: #5a5f73;
  --table-header-bg: rgba(0,0,0,0.03);
  --row-hover: rgba(0,0,0,0.02);
  --pill-blue-bg: rgba(59,124,245,0.1); --pill-green-bg: rgba(5,150,105,0.1);
  --pill-amber-bg: rgba(217,119,6,0.1); --pill-purple-bg: rgba(124,58,237,0.1);
  --pill-teal-bg: rgba(13,148,136,0.1); --pill-red-bg: rgba(220,38,38,0.1);
  --accent-badge-bg: rgba(59,124,245,0.1); --accent-badge-border: rgba(59,124,245,0.25);
  --green-badge-bg: rgba(5,150,105,0.08); --green-badge-border: rgba(5,150,105,0.25);
  --btn-hover-bg: rgba(0,0,0,0.04); --btn-hover-border: rgba(0,0,0,0.18);
  --export-bg: rgba(5,150,105,0.08); --export-border: rgba(5,150,105,0.25);
  --export-hover: rgba(5,150,105,0.15);
  --danger-bg: rgba(220,38,38,0.08); --danger-border: rgba(220,38,38,0.25);
  --success-bg: rgba(5,150,105,0.08); --success-border: rgba(5,150,105,0.25);
  --upload-hover-bg: rgba(59,124,245,0.04); --upload-active-bg: rgba(59,124,245,0.08);
  --theme-icon: "☀️";
}

/* ==================== BASE ==================== */
*{box-sizing:border-box;margin:0;padding:0}
body{background:var(--bg);color:var(--text);font-family:var(--font);font-size:14px;min-height:100vh;transition:background .25s,color .25s}

/* ==================== LOGIN ==================== */
.login-overlay{position:fixed;inset:0;background:var(--bg);z-index:200;display:flex;align-items:center;justify-content:center}
.login-card{background:var(--bg2);border:1px solid var(--border2);border-radius:16px;padding:40px;width:400px;max-width:95vw;box-shadow:var(--shadow)}
.login-card .logo{font-family:var(--mono);font-size:13px;color:var(--accent);letter-spacing:.08em;margin-bottom:24px}
.login-card .logo span{color:var(--text3);font-weight:400}
.login-card h2{font-size:20px;margin-bottom:4px}
.login-card .sub{color:var(--text2);font-size:13px;margin-bottom:24px}

/* ==================== SHELL LAYOUT ==================== */
/* Sidebar kengligi: --sidebar-width (JS + .sidebar-collapsed) */
.shell{
  --sidebar-width:250px;
  --sidebar-width-collapsed:64px;
  display:grid;
  grid-template-columns:auto minmax(0,1fr);
  grid-template-rows:52px minmax(0,1fr);
  min-height:100vh;
}
.shell.sidebar-collapsed{--sidebar-width:var(--sidebar-width-collapsed)}
.topbar{grid-column:1/-1;background:var(--bg2);border-bottom:1px solid var(--border);display:flex;align-items:center;padding:0 20px;gap:16px;transition:background .25s}
.logo{font-size:13px;font-weight:600;letter-spacing:.05em;color:var(--accent);font-family:var(--mono)}.logo span{color:var(--text2);font-weight:400}
.topbar-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.badge{background:var(--accent-badge-bg);color:var(--accent);font-size:11px;padding:3px 10px;border-radius:20px;border:1px solid var(--accent-badge-border);font-family:var(--mono)}
.user-badge{background:var(--green-badge-bg);color:var(--green);font-size:11px;padding:4px 12px;border-radius:20px;border:1px solid var(--green-badge-border);cursor:pointer;transition:background .15s}

/* Sidebar: kenglik o‘zgarishi — asosiy kontent avtomatik kengayadi (grid 2-ustun) */
.sidebar{
  width:var(--sidebar-width);
  min-width:var(--sidebar-width);
  max-width:var(--sidebar-width);
  background:var(--bg2);
  border-right:1px solid var(--border);
  display:flex;
  flex-direction:column;
  min-height:0;
  overflow:hidden;
  transition:width .28s ease,min-width .28s ease,max-width .28s ease,background .25s;
}
.sidebar-toolbar{
  flex-shrink:0;
  display:flex;
  justify-content:flex-end;
  align-items:center;
  padding:8px 10px 6px;
  border-bottom:1px solid var(--border);
  transition:padding .28s ease;
}
.shell.sidebar-collapsed .sidebar-toolbar{justify-content:center;padding-left:8px;padding-right:8px}
.sidebar-toggle{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:36px;
  height:32px;
  padding:0;
  border:1px solid var(--border2);
  border-radius:8px;
  background:var(--bg3);
  color:var(--text2);
  cursor:pointer;
  font-family:var(--mono);
  font-size:15px;
  line-height:1;
  transition:background .15s,border-color .15s,color .15s,transform .2s ease;
}
.sidebar-toggle:hover{background:var(--btn-hover-bg);border-color:var(--btn-hover-border);color:var(--text)}
.sidebar-toggle:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.sidebar-nav-scroll{flex:1;min-height:0;overflow-y:auto;padding:8px 0 16px}
.nav-section{
  padding:4px 12px 8px;
  font-size:10px;
  letter-spacing:.1em;
  color:var(--text3);
  text-transform:uppercase;
  margin-top:8px;
  transition:opacity .2s ease,max-height .25s ease,margin .25s ease,padding .25s ease;
  overflow:hidden;
}
.shell.sidebar-collapsed .nav-section{
  opacity:0;
  max-height:0;
  margin:0;
  padding:0 12px;
  pointer-events:none;
}
.nav-item{
  display:flex;
  align-items:center;
  gap:10px;
  padding:8px 16px;
  cursor:pointer;
  color:var(--text2);
  font-size:13px;
  transition:background .15s,color .15s,border-color .15s,padding .28s ease,gap .28s ease;
  border-left:2px solid transparent;
}
.shell.sidebar-collapsed .nav-item{
  justify-content:center;
  padding:8px 10px;
  gap:0;
}
.nav-item:hover{background:var(--row-hover);color:var(--text)}
.nav-item.active{background:var(--pill-blue-bg);color:var(--accent);border-left-color:var(--accent)}
.shell.sidebar-collapsed .nav-item.active{border-left-color:transparent}
.shell.sidebar-collapsed .nav-item.active{background:var(--pill-blue-bg)}
.nav-icon{width:20px;min-width:20px;text-align:center;font-size:14px;flex-shrink:0}
/* Matn yig‘ilganda yo‘qoladi; ikonka qoladi */
.nav-item-label{
  flex:1;
  min-width:0;
  white-space:nowrap;
  overflow:hidden;
  opacity:1;
  max-width:200px;
  transition:opacity .22s ease,max-width .28s ease,margin .28s ease;
}
.shell.sidebar-collapsed .nav-item-label{
  opacity:0;
  max-width:0;
  margin:0;
  pointer-events:none;
}
.main{padding:28px 32px;overflow-y:auto;min-height:0;min-width:0}
.main:has(.page-yuklama.active){overflow:hidden;display:flex;flex-direction:column;flex:1;min-height:0}

/* ==================== THEME TOGGLE ==================== */
.theme-toggle{background:var(--bg3);border:1px solid var(--border2);border-radius:6px;padding:4px 10px;cursor:pointer;font-size:14px;line-height:1;display:flex;align-items:center;transition:all .15s;color:var(--text)}
.theme-toggle:hover{background:var(--btn-hover-bg);border-color:var(--btn-hover-border)}

/* ==================== PAGES ==================== */
.page{display:none}.page.active{display:block}
.page-yuklama.active{display:flex!important;flex-direction:column;flex:1;min-height:0;overflow:hidden}
.page-yuklama .page-header,.page-yuklama .yuklama-doc-banner{flex-shrink:0}
.page-header{margin-bottom:28px}
.page-title{font-size:22px;font-weight:600;letter-spacing:-.02em}
.page-sub{color:var(--text2);font-size:13px;margin-top:4px}
.page-sub-row{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:4px;width:100%;max-width:100%}
.page-sub-row .page-sub{flex:1;margin-top:0;min-width:0}
.fanlar-help-trigger{flex-shrink:0;width:26px;height:26px;border-radius:50%;border:2px solid #ca8a04;background:linear-gradient(180deg,#fde047 0%,#eab308 100%);color:#422006;font-weight:800;font-size:15px;line-height:1;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;padding:0;box-shadow:0 1px 3px rgba(0,0,0,.2)}
.fanlar-help-trigger:hover{filter:brightness(1.05);transform:scale(1.05)}
.fanlar-help-trigger:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* ==================== STATS ==================== */
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:28px}
.stat-card{background:var(--bg2);border:1px solid var(--border);border-radius:10px;padding:16px 18px;transition:background .25s}
.stat-label{font-size:11px;color:var(--text3);text-transform:uppercase;letter-spacing:.08em;margin-bottom:8px}
.stat-value{font-size:26px;font-weight:600;font-family:var(--mono);letter-spacing:-.02em}
.stat-change{font-size:11px;color:var(--text3);margin-top:4px}
.stat-card.blue .stat-value{color:var(--accent)}
.stat-card.green .stat-value{color:var(--green)}
.stat-card.amber .stat-value{color:var(--amber)}
.stat-card.purple .stat-value{color:var(--purple)}

/* ==================== CHARTS ==================== */
.chart-section{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:28px}
.chart-card{background:var(--bg2);border:1px solid var(--border);border-radius:12px;padding:20px;transition:background .25s}
.chart-card h3{font-size:13px;font-weight:500;color:var(--text2);margin-bottom:16px}
.chart-card canvas{max-height:220px}

/* ==================== TABLE ==================== */
.table-wrap{background:var(--bg2);border:1px solid var(--border);border-radius:12px;overflow:hidden;transition:background .25s}
/* Fanlar: fixed layout + colgroup — raqam/kafedra tor; nom qolgan joy */
#page-fanlar .tbl-scroll{overflow-x:auto}
#page-fanlar .fanlar-table{table-layout:fixed;width:100%;min-width:0}
#page-fanlar .fan-nom-cell{
  min-width:0;
  max-width:100%;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  line-height:1.4;
  vertical-align:middle;
}
#page-fanlar .fanlar-table .pill{font-size:10px;padding:1px 6px;border-radius:14px;line-height:1.35}
#page-fanlar .fan-groups-cell{
  min-width:0;
  max-width:100%;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  line-height:1.4;
  vertical-align:middle;
  font-size:13px;
  color:var(--text);
}
.fan-group-search{width:100%;max-width:100%;margin-top:6px;box-sizing:border-box}
.fan-group-filters{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px;align-items:center}
.fan-group-filters .search-box{width:auto;min-width:120px}
.fan-group-pick-list{max-height:220px;overflow-y:auto;margin-top:10px;padding:8px;border:1px solid var(--border);border-radius:8px;background:var(--bg3)}
.fan-group-pick-row{display:flex;align-items:center;gap:8px;padding:6px 4px;cursor:pointer;font-size:13px;border-radius:4px}
.fan-group-pick-row:hover{background:var(--row-hover)}
.fan-group-pick-row input{flex-shrink:0}
#page-fanlar td.num,
#page-fanlar td.num-highlight{
  padding-left:6px;
  padding-right:6px;
  box-sizing:border-box;
}
#page-fanlar td.num .inline-input{max-width:100%;width:100%;min-width:0;box-sizing:border-box}
.table-toolbar{display:flex;align-items:center;padding:14px 18px;gap:12px;border-bottom:1px solid var(--border);flex-wrap:wrap}
.table-toolbar h3{font-size:14px;font-weight:500}.tb-spacer{flex:1}
.search-box{background:var(--bg3);border:1px solid var(--border);border-radius:6px;padding:6px 12px;color:var(--text);font-family:var(--font);font-size:13px;width:200px;transition:border .15s}
.search-box:focus{outline:none;border-color:var(--accent)}.search-box::placeholder{color:var(--text3)}
select.search-box{width:auto;min-width:140px;cursor:pointer}
button.search-box.fan-group-filter-trigger{appearance:none;-webkit-appearance:none;display:flex;align-items:center;justify-content:space-between;gap:8px;width:auto;min-width:11rem;max-width:22rem;text-align:left;cursor:pointer;font-family:var(--font)}
.fan-group-filter-trigger-text{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.fan-group-filter-trigger-chevron{flex-shrink:0;opacity:.65;font-size:11px;line-height:1}
.fanlar-gf-pick-list{max-height:min(52vh,440px)}
.fanlar-group-filter-row{display:block;width:100%;text-align:left;padding:10px 12px;margin:0 0 6px;border:1px solid var(--border);border-radius:8px;background:var(--bg2);cursor:pointer;font-size:13px;color:var(--text);transition:background .12s,border-color .12s}
.fanlar-group-filter-row:hover{background:var(--row-hover);border-color:var(--accent)}
.fanlar-gf-row-main{font-weight:500;line-height:1.35}
.fanlar-gf-row-sub{margin-top:4px;font-size:12px;color:var(--text3);line-height:1.35}
.fanlar-gf-search{width:100%;max-width:none}
select.search-box option{background:var(--bg3);color:var(--text)}

.btn{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:6px;border:1px solid var(--border2);background:var(--bg3);color:var(--text);cursor:pointer;font-family:var(--font);font-size:13px;transition:all .15s;white-space:nowrap}
.btn:hover{background:var(--btn-hover-bg);border-color:var(--btn-hover-border)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn.primary:hover{background:var(--accent2)}
.btn.success{background:var(--success-bg);border-color:var(--success-border);color:var(--green)}
.btn.danger{background:var(--danger-bg);border-color:var(--danger-border);color:var(--red)}
.btn:disabled{opacity:.4;cursor:not-allowed}
.export-btn{background:var(--export-bg);border:1px solid var(--export-border);color:var(--green);padding:7px 14px;border-radius:6px;cursor:pointer;font-family:var(--font);font-size:13px;display:inline-flex;align-items:center;gap:6px;transition:all .15s}
.export-btn:hover{background:var(--export-hover)}

.tbl-scroll{overflow-x:auto}

@keyframes skeleton-shimmer{
  0%{background-position:100% 0}
  100%{background-position:-100% 0}
}
.teachers-skeleton-row{pointer-events:none}
.teachers-skeleton-row td{padding:10px 14px;vertical-align:middle;border-bottom:1px solid var(--border)}
.teachers-skeleton-row:hover{background:transparent!important}
.skeleton-block,.skeleton-bar{
  border-radius:6px;
  background:linear-gradient(90deg,var(--bg3) 0%,var(--border2) 50%,var(--bg3) 100%);
  background-size:200% 100%;
  animation:skeleton-shimmer 1.35s ease-in-out infinite;
}
.skeleton-avatar{width:40px;height:40px;border-radius:8px}
.skeleton-bar{height:12px}
.skeleton-w-xs{width:36px;max-width:100%}
.skeleton-w-sm{width:72px;max-width:100%}
.skeleton-w-md{width:100px;max-width:100%}
.skeleton-w-lg{width:min(180px,100%)}
.skeleton-w-progress{width:88px;max-width:100%}
.skeleton-w-actions{width:72px;max-width:100%}

.yuklama-skeleton-row td{padding:8px 6px;vertical-align:middle}
.yuklama-skeleton-spacer td{height:30px;padding:0;border:none!important;background:transparent!important;box-shadow:none!important}
.yuklama-faculty-prompt-cell{text-align:center;padding:22px 12px;border-bottom:none;vertical-align:middle;background:var(--bg2)}
.yuklama-faculty-prompt-inner{font-weight:600;color:var(--text2);font-size:14px}
.yuklama-wait-prompt{font-size:19px;font-weight:600;color:var(--text2)}
.tbl-scroll-yuklama-excel.yuklama-pending{flex:1;min-height:min(65vh,calc(100dvh - 240px))}

.table-yuklama{min-width:1000px;font-size:11px}
.table-yuklama thead th{padding:8px 10px;font-size:10px}
.table-yuklama tbody td{padding:7px 10px;font-size:12px;vertical-align:middle}
tr.yuk-section-title td{background:var(--pill-blue-bg);font-weight:600;font-size:12px;padding:10px 12px;border-bottom:1px solid var(--border);color:var(--text)}
tr.yuk-section-title td.yuk-section-title-cell{padding:0!important}
.yuk-section-title-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:8px;
  padding:5px 8px 5px 5px;
  min-height:22px;
}
.yuk-section-title-main{
  display:flex;
  align-items:center;
  gap:8px;
  flex:1;
  min-width:0;
}
.yuk-section-title-text{flex:1;min-width:0;font-size:12px;line-height:1.35}
button.yuk-section-head-plus{
  padding:0 5px!important;
  font-size:10px!important;
  line-height:1.2!important;
  min-height:18px;
  min-width:20px;
  flex-shrink:0;
}
button.yuk-section-delete-btn{
  flex-shrink:0;
  background:transparent;
  border:none;
  cursor:pointer;
  padding:2px 6px;
  font-size:16px;
  line-height:1;
  opacity:0.88;
  color:var(--red);
}
button.yuk-section-delete-btn:hover{opacity:1}
#yuklama-excel-table .yuk-ph-label{color:var(--text3)}
tr.yuk-section-total td{background:rgba(37,99,235,0.07);font-size:12px;font-weight:500;border-bottom:2px solid var(--border)}

/* Yuklama — Excel uslubidagi keng jadval */
.yuklama-excel-wrap{display:flex;flex-direction:column;flex:1;min-height:0;border-radius:12px}
.page-yuklama .yuklama-excel-wrap{background:var(--bg2);border:1px solid var(--border);overflow:hidden}
.yuklama-page-hint{margin-bottom:16px;padding:12px 16px;border:1px solid var(--border);border-radius:10px;background:var(--bg3);font-size:13px;line-height:1.5;color:var(--text2)}
.yuklama-page-hint ol{margin:8px 0 0;padding-left:1.25rem}
.yuklama-page-hint li{margin:6px 0}
.yuklama-page-hint code{font-family:var(--mono);font-size:11px;color:var(--text)}
.yuklama-doc-banner{
  margin-bottom:16px;padding:14px 18px;border:1px solid var(--border2);border-radius:10px;
  background:linear-gradient(180deg,var(--bg2),var(--bg3));text-align:center;
}
.yuklama-doc-kicker{font-size:11px;text-transform:uppercase;letter-spacing:.12em;color:var(--text3);margin-bottom:6px}
.yuklama-doc-title{font-size:15px;font-weight:600;color:var(--text);line-height:1.35}
.yuklama-doc-yil{margin-top:6px;font-size:13px;color:var(--text2)}
.tbl-scroll-yuklama-excel{
  flex:1 1 auto;min-height:200px;max-height:none;overflow:auto;scrollbar-gutter:stable;
  border-top:1px solid var(--border);
}
.page-yuklama .tbl-scroll-yuklama-excel{border:none;border-radius:0}
#yuklama-excel-table{
  table-layout:fixed;width:max(100%,1680px);min-width:1680px;font-size:11px;border-collapse:separate;border-spacing:0;
  --yuklama-head-row1:36px;--yuklama-head-sticky-g3:128px;
}
#yuklama-excel-table thead th{
  position:sticky;font-size:9px;font-weight:600;text-align:center;vertical-align:middle;line-height:1.15;
  border:1px solid var(--border);background:var(--table-header-bg);color:var(--text2);padding:3px 2px;
  box-sizing:border-box;
}
#yuklama-excel-table thead tr.excel-head-g1 th{
  top:0;z-index:8;padding:6px 4px;font-size:10px;text-transform:none;letter-spacing:.02em;
}
#yuklama-excel-table thead tr.excel-head-g2 th{
  top:var(--yuklama-head-row1);z-index:7;text-transform:none;letter-spacing:0;
}
#yuklama-excel-table thead tr.excel-head-g3 th{
  top:var(--yuklama-head-sticky-g3);z-index:6;text-transform:none;letter-spacing:0;font-size:9px;
}
#yuklama-excel-table thead th.excel-col-divider{top:0;z-index:9}
#yuklama-excel-table .th-sub{font-size:7px;font-weight:500;opacity:.85}
.excel-sem-title--small{font-size:10px!important}
.excel-th-group{font-weight:700!important;z-index:8}
.excel-th-h-tight{
  writing-mode:horizontal-tb;transform:none;max-width:none;white-space:normal;line-height:1.15!important;
  font-size:9px!important;padding:5px 4px!important;
}
.excel-th-sub{font-weight:600!important;padding:2px 2px!important}
.yuk-num-input{
  width:100%;max-width:100%;min-width:0;box-sizing:border-box;border:1px solid transparent;border-radius:2px;
  background:transparent;color:var(--text);font-family:var(--mono);font-size:10px;text-align:center;padding:2px 3px;
  -moz-appearance:textfield;
  appearance:textfield;
}
.yuk-num-input::-webkit-outer-spin-button,
.yuk-num-input::-webkit-inner-spin-button{
  -webkit-appearance:none;
  margin:0;
}
.yuk-num-input:hover{border-color:var(--border2)}
.yuk-num-input:focus{outline:none;border-color:var(--accent);background:var(--bg3)}
.yuk-num-input:disabled,.yuk-num-input[readonly]{opacity:.85;cursor:default;color:var(--text2)}
.yuk-masul-cell{padding:2px 4px!important;vertical-align:middle!important}
.yuk-masul-cell--editable{cursor:pointer;border-radius:4px}
.yuk-masul-cell--editable:hover,.yuk-masul-cell--editable:focus{outline:1px solid var(--accent);background:var(--bg3)!important}
.yuk-masul-inner{display:flex;align-items:center;gap:6px;min-height:32px;justify-content:flex-start}
.yuk-masul-photo{width:28px;height:28px;border-radius:6px;object-fit:cover;background:var(--bg2);flex-shrink:0}
.yuk-masul-photo--ph{display:flex;align-items:center;justify-content:center;font-size:10px;color:var(--text3);border:1px dashed var(--border2)}
.yuk-masul-fio{font-size:9px;line-height:1.2;text-align:left;max-width:88px;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.yuk-masul-placeholder{font-size:9px;color:var(--text3);font-weight:600}
.yuk-kafedra-cell{padding:2px 4px!important;vertical-align:middle!important}
.yuk-kafedra-cell--editable{cursor:pointer;border-radius:4px}
.yuk-kafedra-cell--editable:hover,.yuk-kafedra-cell--editable:focus{outline:1px solid var(--accent);background:var(--bg3)!important}
.yuk-kafedra-inner{position:relative;display:flex;align-items:center;gap:6px;min-height:32px;padding-right:22px;min-width:0}
.yuk-kafedra-text{font-size:10px;line-height:1.2;flex:1;min-width:0;word-break:break-word}
.yuk-kaf-placeholder-inner{display:flex;align-items:center;gap:6px;flex:1;min-width:0}
.yuk-kaf-placeholder-inner .yuk-masul-photo--ph{width:24px;height:24px;font-size:9px;min-width:24px}
button.yuk-kaf-row-delete{
  position:absolute;bottom:1px;right:0;padding:0 2px;border:none;background:transparent;
  cursor:pointer;font-size:14px;line-height:1;color:var(--red);opacity:0.88;z-index:2;
}
button.yuk-kaf-row-delete:hover{opacity:1}
.teacher-detail-charts{
  display:flex;flex-wrap:wrap;gap:20px;align-items:flex-start;width:100%;
}
.teacher-detail-chart-card{
  flex:1 1 calc(50% - 10px);
  max-width:calc(50% - 10px);
  min-width:0;
  box-sizing:border-box;
  background:var(--bg2);
  border:1px solid var(--border);
  border-radius:12px;
  padding:12px;
}
.teacher-detail-chart-title{font-size:13px;margin:0 0 10px;color:var(--text2);font-weight:600}
.teacher-detail-chart-canvas-wrap{position:relative;height:200px;width:100%}
@media (max-width:720px){
  .teacher-detail-chart-card{flex-basis:100%;max-width:100%}
}
.yuklama-picker-list{background:var(--bg2)}
.yuklama-picker-item{
  display:flex;align-items:center;gap:10px;width:100%;padding:8px 10px;border:none;border-bottom:1px solid var(--border);
  background:transparent;color:var(--text);text-align:left;cursor:pointer;font-size:13px;
}
.yuklama-picker-item:last-child{border-bottom:none}
.yuklama-picker-item:hover{background:var(--row-hover)}
.yuklama-picker-item img{width:36px;height:36px;border-radius:8px;object-fit:cover;flex-shrink:0}
.yuk-kr-stack{display:flex;flex-direction:column;gap:1px;align-items:stretch}
.table-yuklama-excel{font-size:11px}
#yuklama-excel-table thead th{
  padding:3px 2px!important;
  text-transform:none!important;
  letter-spacing:0!important;
}
.excel-sec-asosiy{background:#fef9c3!important;color:#713f12!important;border-bottom:2px solid #ca8a04!important}
.excel-sec-kuzgi{background:#ffe4e6!important;color:#7f1d1d!important;border-bottom:2px solid #f87171!important}
.excel-sec-bahorgi{background:#ffe4e6!important;color:#7f1d1d!important;border-bottom:2px solid #f87171!important}
.excel-sem-title{color:#b91c1c!important;font-weight:700!important;letter-spacing:.02em}
.excel-sec-jami{background:#fce7f3!important;color:#831843!important}
.excel-sec-kaf{background:#ecfdf5!important;color:#14532d!important}
.excel-kaf-title{color:#b91c1c!important;font-weight:700!important}
.excel-bg-talaba{background:#bfdbfe!important;color:#1e3a8a!important}
.excel-bg-maruza-kuzgi,.excel-bg-maruza-bahorgi{background:#fed7aa!important;color:#7c2d12!important}
/* Yashil “devor” ustunlari: colgroup + th/td bir xil 7px (siljish oldini olish) */
#yuklama-excel-table col.col-yuk-divider{
  width:7px!important;min-width:7px!important;max-width:7px!important;
}
.table-yuklama-excel .excel-col-divider,
.table-yuklama-excel th.excel-col-divider,
.table-yuklama-excel td.excel-col-divider{
  width:7px!important;min-width:7px!important;max-width:7px!important;
  box-sizing:border-box!important;
  padding:0!important;border:none!important;
  background:linear-gradient(90deg,#166534 0%,#22c55e 42%,#15803d 100%)!important;
  box-shadow:inset 0 0 0 1px #052e16,0 0 0 1px rgba(34,197,94,0.35);
  background-clip:padding-box!important;
}
.table-yuklama-excel thead th.excel-col-divider{
  position:sticky;top:0;z-index:9;
}
/* Vertikal sarlavhalar: o‘qilishi uchun biroz yirikroq va qalinroq */
#yuklama-excel-table .excel-th-v{
  writing-mode:vertical-rl;transform:rotate(180deg);max-width:1.75rem;min-width:1.45rem;
  white-space:nowrap;padding:4px 2px!important;font-size:10px!important;font-weight:700!important;
  line-height:1.15!important;letter-spacing:.04em;color:var(--text)!important;
}
/* Dark: .excel-th-v umumiy oq matn — yengil fonlarda o‘qilmas; maxsus fon + qora matn */
html:not(.light) #yuklama-excel-table thead th.excel-bg-talaba.excel-th-v{
  background:rgba(125,211,252,0.42)!important;
  color:#0c1e2e!important;
  box-shadow:inset 0 0 0 1px rgba(56,189,248,0.35);
}
html:not(.light) #yuklama-excel-table thead th.excel-bg-maruza-kuzgi.excel-th-v,
html:not(.light) #yuklama-excel-table thead th.excel-bg-maruza-bahorgi.excel-th-v{
  background:rgba(194,65,12,0.92)!important;
  color:#fff7ed!important;
  box-shadow:inset 0 0 0 1px rgba(154,52,18,0.6);
}
html:not(.light) #yuklama-excel-table tbody td.excel-cell-talaba{
  background:rgba(59,130,246,0.14)!important;
}
html:not(.light) #yuklama-excel-table tbody td.excel-cell-maruza-kuzgi,
html:not(.light) #yuklama-excel-table tbody td.excel-cell-maruza-bahorgi{
  background:rgba(234,88,12,0.22)!important;
}
#yuklama-excel-table thead tr.excel-head-g3 .excel-th-v{font-size:10px!important}
#yuklama-excel-table tbody td{border:1px solid var(--border);padding:3px 4px;vertical-align:middle;font-size:10px}
/* Yuklama jadvalidagi barcha raqam ko‘rinishlari markazda */
#yuklama-excel-table tbody td.num,
#yuklama-excel-table tbody td.num-highlight,
#yuklama-excel-table tfoot td.num-highlight{
  text-align:center!important;
}
#yuklama-excel-table .yuk-num-input{text-align:center!important}
#yuklama-excel-table .yuk-kr-stack{align-items:center}
/* Til pill: fon yo‘q, ixcham matn */
#yuklama-excel-table .pill{
  background:transparent!important;border:none!important;box-shadow:none!important;
  padding:0 2px!important;border-radius:0!important;font-size:9px!important;font-weight:600!important;
  letter-spacing:.04em;line-height:1.2;vertical-align:middle;
}
#yuklama-excel-table .pill.blue{color:var(--accent)!important}
#yuklama-excel-table .pill.green{color:var(--green)!important}
#yuklama-excel-table .pill.amber{color:var(--amber)!important}
#yuklama-excel-table .pill.teal{color:var(--teal)!important}
#yuklama-excel-table .pill.purple{color:var(--purple)!important}
#yuklama-excel-table .pill.red{color:var(--red)!important}
.table-yuklama-excel tbody td{border:1px solid var(--border);padding:3px 4px;vertical-align:middle;font-size:10px}
.table-yuklama-excel tbody td.excel-col-divider{padding:0!important;border-left:none!important;border-right:none!important}
.table-yuklama-excel tbody tr:hover{background:var(--row-hover)}
.excel-section-row td{
  background:#fef08a!important;color:#422006!important;font-weight:600;font-size:9px!important;
  padding:5px 8px!important;border:1px solid #eab308!important;
}
.excel-section-total td{background:#fef3c7!important;border-color:var(--border)!important;font-size:9px!important;padding:4px 6px!important}
.excel-cell-talaba{background:rgba(59,130,246,0.12)!important}
.excel-cell-maruza-kuzgi,.excel-cell-maruza-bahorgi{background:rgba(251,146,60,0.18)!important}
/* Dark: bo‘lim sarlavha / jami qatorlari — kamroq yorug‘lik */
html:not(.light) #yuklama-excel-table tr.excel-section-row td{
  background:rgba(234,179,8,0.12)!important;
  color:#fde68a!important;
  border:1px solid rgba(234,179,8,0.32)!important;
}
html:not(.light) #yuklama-excel-table tr.excel-section-total td{
  background:rgba(234,179,8,0.07)!important;
  color:var(--text2)!important;
  border-color:var(--border)!important;
}
.excel-cell-lab{background:rgba(234,179,8,0.15)!important}
.excel-foot-total td{background:var(--pill-blue-bg)!important;border-top:2px solid var(--accent)!important}
.excel-flag{text-align:center;font-size:12px}
html.light .excel-sec-asosiy{background:#fef08a!important}
html.light .excel-sec-kuzgi,html.light .excel-sec-bahorgi{background:#fecdd3!important}
html.light .excel-section-row td{background:#fde047!important}
/* Light: talaba / ma'ruza sarlavha — .excel-th-v matni fon bilan mos */
html.light #yuklama-excel-table thead th.excel-bg-talaba.excel-th-v{
  background:#dbeafe!important;
  color:#1e3a8a!important;
}
html.light #yuklama-excel-table thead th.excel-bg-maruza-kuzgi.excel-th-v,
html.light #yuklama-excel-table thead th.excel-bg-maruza-bahorgi.excel-th-v{
  background:#fdba74!important;
  color:#7c2d12!important;
}
@media print{
  #page-yuklama .table-toolbar{display:none!important}
  #page-yuklama .tbl-scroll,#page-yuklama .tbl-scroll-yuklama-excel{overflow:visible;max-height:none}
  #page-yuklama .tbl-scroll-yuklama-excel.yuklama-pending{min-height:0}
  #page-yuklama .table-yuklama,#page-yuklama .table-yuklama-excel{font-size:9px}
  tr.yuk-section-title td,tr.excel-section-row td{background:#fde047!important;-webkit-print-color-adjust:exact;print-color-adjust:exact}
}
table{width:100%;border-collapse:collapse}
thead th{padding:10px 16px;text-align:left;font-size:11px;font-weight:500;color:var(--text3);text-transform:uppercase;letter-spacing:.06em;border-bottom:1px solid var(--border);background:var(--table-header-bg);white-space:nowrap;position:sticky;top:0}
#yuklama-excel-table thead th{color:var(--text2)}
tbody tr{border-bottom:1px solid var(--border);transition:background .1s}
tbody tr:last-child{border-bottom:none}
tbody tr:hover{background:var(--row-hover)}
tbody td{padding:11px 16px;font-size:13px}
.mono{font-family:var(--mono);font-size:12px;color:var(--text2)}
.pill{display:inline-block;padding:2px 8px;border-radius:20px;font-size:11px;font-weight:500}
.pill.blue{background:var(--pill-blue-bg);color:var(--accent)}
.pill.green{background:var(--pill-green-bg);color:var(--green)}
.pill.amber{background:var(--pill-amber-bg);color:var(--amber)}
.pill.purple{background:var(--pill-purple-bg);color:var(--purple)}
.pill.teal{background:var(--pill-teal-bg);color:var(--teal)}
.pill.red{background:var(--pill-red-bg);color:var(--red)}
.num{font-family:var(--mono);font-size:12px;text-align:right}
.num-highlight{font-family:var(--mono);font-size:13px;font-weight:500;color:var(--accent)}
.editable{cursor:pointer}.editable:hover{color:var(--accent)}
.inline-input{background:var(--bg3);border:1px solid var(--accent);border-radius:4px;padding:3px 8px;color:var(--text);font-family:var(--mono);font-size:12px;width:70px}

/* ==================== MODALS ==================== */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.6);backdrop-filter:blur(4px);z-index:100;display:none;align-items:center;justify-content:center}
.modal-overlay.open{display:flex}
.modal{background:var(--bg2);border:1px solid var(--border2);border-radius:14px;width:580px;max-height:85vh;overflow-y:auto;padding:28px;box-shadow:var(--shadow)}
.modal.modal--wide{width:min(920px,94vw);max-width:920px}
.modal h2{font-size:17px;font-weight:600;margin-bottom:4px}.modal .sub{color:var(--text2);font-size:13px;margin-bottom:24px}
.fanlar-help-section{margin-top:1.1rem}
.fanlar-help-section:first-of-type{margin-top:0}
.fanlar-help-section h3{font-size:15px;font-weight:600;margin:0 0 .5rem;color:var(--text)}
.fanlar-help-section p{font-size:13px;line-height:1.55;color:var(--text2);margin:0 0 .5rem}
.fanlar-help-formula{display:block;margin:.5rem 0;padding:12px 14px;background:var(--bg3);border:1px solid var(--border);border-radius:8px;font-family:var(--mono);font-size:12px;line-height:1.5;color:var(--text);white-space:pre-wrap}
.fanlar-help-list{margin:.35rem 0 0;padding-left:1.25rem;font-size:13px;line-height:1.55;color:var(--text2)}
.fanlar-help-list li{margin:.35rem 0}
.fanlar-help-modal-inner{max-height:88vh}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-group{display:flex;flex-direction:column;gap:6px}.form-group.full{grid-column:1/-1}
.form-group label{font-size:11px;font-weight:500;color:var(--text3);text-transform:uppercase;letter-spacing:.07em}
.form-group input,.form-group select,.form-group textarea{background:var(--bg3);border:1px solid var(--border);border-radius:7px;padding:9px 12px;color:var(--text);font-family:var(--font);font-size:13px;transition:border .15s}
.form-group input:focus,.form-group select:focus{outline:none;border-color:var(--accent)}
.form-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:24px}

/* ==================== MISC ==================== */
.progress-bar{height:4px;background:var(--bg3);border-radius:2px;overflow:hidden;margin-top:8px}
.progress-fill{height:100%;border-radius:2px;transition:width .5s}

.toast{position:fixed;bottom:24px;right:24px;background:var(--bg3);border:1px solid var(--border2);border-radius:10px;padding:12px 18px;font-size:13px;z-index:999;transform:translateY(80px);opacity:0;transition:all .25s;display:flex;align-items:center;gap:10px;max-width:400px;box-shadow:var(--shadow)}
.toast.show{transform:translateY(0);opacity:1}
.toast.saved{border-color:var(--success-border)}
.toast.error{border-color:var(--danger-border)}

.empty-state{text-align:center;padding:48px 24px;color:var(--text3);font-size:13px}

.upload-zone{border:2px dashed var(--border2);border-radius:12px;padding:48px 32px;text-align:center;cursor:pointer;transition:all .2s}
.upload-zone:hover{border-color:var(--accent);background:var(--upload-hover-bg)}
.upload-zone.drag-over{border-color:var(--accent);background:var(--upload-active-bg)}

::-webkit-scrollbar{width:5px;height:5px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border2);border-radius:3px}

@media(max-width:900px){
  /* Kichik ekran: sidebar yashirin; yig‘ilgan holat klassi ahamiyat kasb etmaydi */
  .shell{grid-template-columns:1fr}
  .shell.sidebar-collapsed{--sidebar-width:250px}
  .sidebar{display:none}
  .stats-row{grid-template-columns:repeat(2,1fr)}
  .chart-section{grid-template-columns:1fr}
}