/* ============================================================
   EduInsight · Wayne RESA District Intelligence Platform
   Main Stylesheet v2.4.1
   ============================================================ */

/* ── Custom Properties ── */
:root {
  --navy:       #0f2744;
  --navy-700:   #1a3a5c;
  --navy-600:   #1e3a5f;
  --blue:       #1a56db;
  --blue-600:   #1e429f;
  --blue-100:   #e1effe;
  --blue-50:    #eff6ff;
  --teal:       #0d9488;
  --teal-100:   #ccfbf1;
  --green:      #10b981;
  --green-100:  #d1fae5;
  --amber:      #f59e0b;
  --amber-100:  #fef3c7;
  --red:        #ef4444;
  --red-100:    #fee2e2;
  --purple:     #7c3aed;
  --purple-100: #ede9fe;

  --bg:         #f0f4f8;
  --surface:    #ffffff;
  --surface-2:  #f8fafc;
  --border:     #e2e8f0;
  --border-2:   #cbd5e1;

  --text-primary:   #0f172a;
  --text-secondary: #475569;
  --text-muted:     #94a3b8;

  --sidebar-w: 260px;
  --topbar-h:  64px;

  --radius-sm: 6px;
  --radius:    10px;
  --radius-lg: 14px;
  --radius-xl: 18px;

  --shadow-sm: 0 1px 3px rgba(15,23,42,.06), 0 1px 2px rgba(15,23,42,.04);
  --shadow:    0 4px 6px -1px rgba(15,23,42,.07), 0 2px 4px -2px rgba(15,23,42,.05);
  --shadow-lg: 0 10px 15px -3px rgba(15,23,42,.08), 0 4px 6px -4px rgba(15,23,42,.05);

  --transition: .18s ease;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* ── Reset / Base ── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{font-size:14px;-webkit-font-smoothing:antialiased;}
body{font-family:var(--font);background:var(--bg);color:var(--text-primary);overflow:hidden;height:100vh;}
a{text-decoration:none;color:inherit;}
button{font-family:var(--font);cursor:pointer;border:none;background:none;}
select,input{font-family:var(--font);}
img{max-width:100%;}
::-webkit-scrollbar{width:6px;height:6px;}
::-webkit-scrollbar-track{background:transparent;}
::-webkit-scrollbar-thumb{background:var(--border-2);border-radius:99px;}
::-webkit-scrollbar-thumb:hover{background:var(--text-muted);}

/* ── App Shell ── */
#app-shell{display:flex;height:100vh;overflow:hidden;}

/* ── Sidebar ── */
#sidebar{
  width:var(--sidebar-w);
  min-width:var(--sidebar-w);
  background:var(--navy);
  display:flex;
  flex-direction:column;
  height:100vh;
  overflow:hidden;
  transition:width var(--transition),min-width var(--transition);
  z-index:200;
  position:relative;
}
#sidebar.collapsed{width:64px;min-width:64px;}
#sidebar.collapsed .brand-text,
#sidebar.collapsed .nav-group-label,
#sidebar.collapsed .nav-item span:first-of-type,
#sidebar.collapsed .nav-badge,
#sidebar.collapsed .nav-count,
#sidebar.collapsed .sf-info,
#sidebar.collapsed .sf-meta{display:none;}
#sidebar.collapsed .nav-item{justify-content:center;padding:10px;}
#sidebar.collapsed .nav-item i{margin:0;}
#sidebar.collapsed .sidebar-brand{padding:16px;justify-content:center;}

/* Sidebar Brand */
.sidebar-brand{
  display:flex;align-items:center;gap:10px;
  padding:16px 18px;
  border-bottom:1px solid rgba(255,255,255,.06);
  min-height:var(--topbar-h);
}
.brand-icon{flex-shrink:0;}
.brand-name{color:#fff;font-weight:700;font-size:.95rem;letter-spacing:-.01em;line-height:1.2;}
.brand-sub{color:rgba(255,255,255,.45);font-size:.71rem;font-weight:400;letter-spacing:.02em;text-transform:uppercase;}

/* Sidebar Nav */
.sidebar-nav{
  flex:1;overflow-y:auto;overflow-x:hidden;
  padding:12px 0;
}
.nav-group{margin-bottom:4px;}
.nav-group-label{
  padding:10px 18px 4px;
  font-size:.63rem;font-weight:600;letter-spacing:.08em;
  color:rgba(255,255,255,.28);text-transform:uppercase;
}
.nav-item{
  display:flex;align-items:center;gap:10px;
  padding:9px 18px;
  color:rgba(255,255,255,.6);
  font-size:.82rem;font-weight:500;
  border-radius:0;
  transition:background var(--transition),color var(--transition);
  cursor:pointer;position:relative;
  margin:1px 8px;border-radius:var(--radius-sm);
}
.nav-item i{font-size:1rem;flex-shrink:0;width:18px;text-align:center;}
.nav-item span:first-of-type{flex:1;}
.nav-item:hover{background:rgba(255,255,255,.08);color:rgba(255,255,255,.9);}
.nav-item.active{background:rgba(26,86,219,.35);color:#fff;}
.nav-item.active::before{
  content:'';position:absolute;left:-8px;top:50%;transform:translateY(-50%);
  width:3px;height:18px;background:var(--blue);border-radius:0 3px 3px 0;
}
.nav-badge{
  padding:2px 6px;border-radius:99px;font-size:.63rem;font-weight:600;
  flex-shrink:0;line-height:1.4;
}
.badge-alert{background:#ef444430;color:#fca5a5;}
.badge-warn{background:#f59e0b30;color:#fcd34d;}
.badge-info{background:#1a56db30;color:#93c5fd;}
.badge-success{background:#10b98130;color:#6ee7b7;}
.nav-count{font-size:.7rem;color:rgba(255,255,255,.35);font-weight:400;}

/* Sidebar Footer */
.sidebar-footer{
  border-top:1px solid rgba(255,255,255,.06);
  padding:12px 14px 10px;
}
.sf-user{display:flex;align-items:center;gap:10px;margin-bottom:8px;}
.sf-avatar{
  width:32px;height:32px;border-radius:50%;
  background:var(--blue);color:#fff;
  font-size:.75rem;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  flex-shrink:0;
}
.sf-name{color:#fff;font-size:.78rem;font-weight:600;}
.sf-role{color:rgba(255,255,255,.4);font-size:.68rem;}
.sf-meta{color:rgba(255,255,255,.25);font-size:.63rem;letter-spacing:.02em;}

/* ── Main Wrapper ── */
#main-wrapper{
  flex:1;display:flex;flex-direction:column;
  overflow:hidden;min-width:0;
}

/* ── Topbar ── */
#topbar{
  height:var(--topbar-h);
  background:var(--surface);
  border-bottom:1px solid var(--border);
  display:flex;align-items:center;
  padding:0 20px;
  gap:16px;
  flex-shrink:0;
  z-index:100;
  position:relative;
}
.topbar-left{display:flex;align-items:center;gap:12px;flex:1;}
.topbar-center{display:flex;align-items:center;gap:0;}
.topbar-right{display:flex;align-items:center;gap:8px;}

.breadcrumb-nav{display:flex;align-items:center;gap:6px;font-size:.82rem;}
.bc-root{color:var(--text-muted);font-weight:400;}
.bc-sep{font-size:.65rem;color:var(--text-muted);}
#page-breadcrumb{color:var(--text-primary);font-weight:600;}

.topbar-sel-group{
  display:flex;align-items:center;gap:6px;
  padding:6px 10px;
  background:var(--surface-2);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  font-size:.78rem;color:var(--text-secondary);
}
.topbar-sel-group i{font-size:.85rem;color:var(--text-muted);}
.topbar-select{
  border:none;background:transparent;
  font-size:.78rem;font-weight:500;color:var(--text-primary);
  cursor:pointer;outline:none;
  max-width:180px;
}
.topbar-sel-div{width:12px;}

.icon-btn{
  width:36px;height:36px;border-radius:var(--radius-sm);
  display:flex;align-items:center;justify-content:center;
  color:var(--text-secondary);
  font-size:1rem;
  transition:background var(--transition),color var(--transition);
}
.icon-btn:hover{background:var(--surface-2);color:var(--text-primary);}

.notif-btn{position:relative;}
.notif-dot{
  position:absolute;top:4px;right:4px;
  min-width:16px;height:16px;padding:0 3px;
  background:var(--red);color:#fff;
  font-size:.58rem;font-weight:700;
  border-radius:99px;
  display:flex;align-items:center;justify-content:center;
  border:2px solid var(--surface);
}
.topbar-divider{width:1px;height:28px;background:var(--border);margin:0 4px;}
.topbar-user{
  display:flex;align-items:center;gap:8px;
  padding:4px 8px;border-radius:var(--radius);
  cursor:pointer;
  transition:background var(--transition);
}
.topbar-user:hover{background:var(--surface-2);}
.tu-avatar{
  width:32px;height:32px;border-radius:50%;
  background:var(--blue);color:#fff;
  font-size:.72rem;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.tu-name{font-size:.78rem;font-weight:600;color:var(--text-primary);}
.tu-role{font-size:.68rem;color:var(--text-muted);}
.tu-caret{font-size:.65rem;color:var(--text-muted);}

/* ── Page Content ── */
#page-content{
  flex:1;overflow-y:auto;overflow-x:hidden;
  padding:24px;
  position:relative;
}

/* Loading spinner */
.page-loading{display:flex;align-items:center;justify-content:center;height:200px;}
.spinner{
  width:32px;height:32px;
  border:3px solid var(--border);
  border-top-color:var(--blue);
  border-radius:50%;
  animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg);}}

/* ── Page Header ── */
.page-header{margin-bottom:20px;}
.page-header-row{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;flex-wrap:wrap;}
.page-title{font-size:1.35rem;font-weight:700;color:var(--text-primary);letter-spacing:-.02em;}
.page-subtitle{font-size:.8rem;color:var(--text-muted);margin-top:3px;}
.page-actions{display:flex;align-items:center;gap:8px;flex-shrink:0;}

/* ── Buttons ── */
.btn{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 14px;border-radius:var(--radius-sm);
  font-size:.78rem;font-weight:600;
  transition:all var(--transition);cursor:pointer;border:none;
}
.btn-primary{background:var(--blue);color:#fff;}
.btn-primary:hover{background:var(--blue-600);}
.btn-secondary{background:var(--surface);color:var(--text-primary);border:1px solid var(--border);}
.btn-secondary:hover{background:var(--surface-2);border-color:var(--border-2);}
.btn-ghost{background:transparent;color:var(--text-secondary);}
.btn-ghost:hover{background:var(--surface-2);}
.btn-sm{padding:5px 10px;font-size:.72rem;}
.btn-danger{background:var(--red);color:#fff;}
.btn-success{background:var(--green);color:#fff;}
.btn-link-sm{background:transparent;border:none;color:var(--blue);font-size:.75rem;cursor:pointer;}
.btn-link-sm:hover{text-decoration:underline;}

/* ── Cards ── */
.card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
}
.card-header{
  padding:16px 20px 12px;
  border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;
  gap:12px;flex-wrap:wrap;
}
.card-title{font-size:.9rem;font-weight:700;color:var(--text-primary);letter-spacing:-.01em;}
.card-subtitle{font-size:.73rem;color:var(--text-muted);margin-top:2px;}
.card-body{padding:20px;}
.card-footer{
  padding:12px 20px;
  border-top:1px solid var(--border);
  background:var(--surface-2);
  border-radius:0 0 var(--radius-lg) var(--radius-lg);
  font-size:.74rem;color:var(--text-muted);
  display:flex;align-items:center;justify-content:space-between;
}

/* ── KPI Cards ── */
.kpi-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
  margin-bottom:20px;
}
@media(max-width:1100px){.kpi-grid{grid-template-columns:repeat(2,1fr);}}
@media(max-width:600px){.kpi-grid{grid-template-columns:1fr;}}

.kpi-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:20px;
  box-shadow:var(--shadow-sm);
  transition:box-shadow var(--transition),transform var(--transition);
  position:relative;overflow:hidden;
}
.kpi-card:hover{box-shadow:var(--shadow);transform:translateY(-1px);}
.kpi-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:3px;
}
.kpi-card.kc-blue::before{background:var(--blue);}
.kpi-card.kc-green::before{background:var(--green);}
.kpi-card.kc-amber::before{background:var(--amber);}
.kpi-card.kc-red::before{background:var(--red);}
.kpi-card.kc-purple::before{background:var(--purple);}
.kpi-card.kc-teal::before{background:var(--teal);}

.kpi-header{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:12px;}
.kpi-label{font-size:.72rem;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;}
.kpi-icon{
  width:36px;height:36px;border-radius:var(--radius);
  display:flex;align-items:center;justify-content:center;
  font-size:1rem;
}
.kpi-icon.ki-blue{background:var(--blue-100);color:var(--blue);}
.kpi-icon.ki-green{background:var(--green-100);color:var(--green);}
.kpi-icon.ki-amber{background:var(--amber-100);color:var(--amber);}
.kpi-icon.ki-red{background:var(--red-100);color:var(--red);}
.kpi-icon.ki-purple{background:var(--purple-100);color:var(--purple);}
.kpi-icon.ki-teal{background:var(--teal-100);color:var(--teal);}

.kpi-value{font-size:2rem;font-weight:800;color:var(--text-primary);letter-spacing:-.03em;line-height:1;}
.kpi-value-sm{font-size:1.5rem;font-weight:800;}
.kpi-footer{display:flex;align-items:center;gap:6px;margin-top:8px;}
.kpi-trend{
  display:inline-flex;align-items:center;gap:3px;
  font-size:.72rem;font-weight:600;padding:2px 6px;border-radius:99px;
}
.kpi-trend.up{color:#059669;background:#d1fae5;}
.kpi-trend.down{color:var(--red);background:var(--red-100);}
.kpi-trend.neutral{color:var(--text-muted);background:var(--surface-2);}
.kpi-trend-label{font-size:.72rem;color:var(--text-muted);}

/* ── Grid Layouts ── */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.grid-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:20px;}
.grid-3-1{display:grid;grid-template-columns:3fr 1fr;gap:20px;}
.grid-2-1{display:grid;grid-template-columns:2fr 1fr;gap:20px;}
@media(max-width:1024px){.grid-2,.grid-3,.grid-3-1,.grid-2-1{grid-template-columns:1fr;}}

.chart-container{position:relative;width:100%;}
.chart-h-280{height:280px;}
.chart-h-240{height:240px;}
.chart-h-200{height:200px;}
.chart-h-320{height:320px;}
.chart-h-180{height:180px;}

/* ── Tables ── */
.table-wrap{overflow-x:auto;border-radius:var(--radius-lg);border:1px solid var(--border);}
.data-table{width:100%;border-collapse:collapse;font-size:.78rem;}
.data-table thead th{
  background:var(--surface-2);
  padding:10px 16px;
  text-align:left;
  font-size:.68rem;font-weight:700;
  color:var(--text-muted);
  text-transform:uppercase;letter-spacing:.06em;
  border-bottom:1px solid var(--border);
  white-space:nowrap;
}
.data-table tbody td{
  padding:11px 16px;
  border-bottom:1px solid var(--border);
  color:var(--text-primary);
  vertical-align:middle;
}
.data-table tbody tr:last-child td{border-bottom:none;}
.data-table tbody tr:hover td{background:var(--blue-50);}
.data-table tbody tr.clickable{cursor:pointer;}

/* ── Badges / Status ── */
.badge{
  display:inline-flex;align-items:center;gap:4px;
  padding:3px 8px;border-radius:99px;
  font-size:.67rem;font-weight:600;
  white-space:nowrap;
}
.badge i{font-size:.7rem;}
.b-green{background:var(--green-100);color:#065f46;}
.b-blue{background:var(--blue-100);color:#1e40af;}
.b-amber{background:var(--amber-100);color:#92400e;}
.b-red{background:var(--red-100);color:#991b1b;}
.b-purple{background:var(--purple-100);color:#5b21b6;}
.b-teal{background:var(--teal-100);color:#115e59;}
.b-gray{background:#f1f5f9;color:var(--text-muted);}

.status-dot{
  display:inline-block;width:7px;height:7px;
  border-radius:50%;margin-right:5px;
}
.sd-green{background:var(--green);}
.sd-amber{background:var(--amber);}
.sd-red{background:var(--red);}
.sd-blue{background:var(--blue);}
.sd-gray{background:var(--border-2);}

/* ── Tier Chips ── */
.tier-chip{
  display:inline-flex;align-items:center;
  padding:3px 10px;border-radius:99px;
  font-size:.67rem;font-weight:700;letter-spacing:.03em;
}
.tier-1{background:#dbeafe;color:#1e40af;}
.tier-2{background:#fef3c7;color:#92400e;}
.tier-3{background:#fee2e2;color:#991b1b;}

/* ── Risk Indicators ── */
.risk-indicator{display:flex;align-items:center;gap:6px;}
.risk-bar{flex:1;height:6px;background:var(--border);border-radius:99px;overflow:hidden;}
.risk-fill{height:100%;border-radius:99px;transition:width .4s ease;}
.risk-low .risk-fill{background:var(--green);}
.risk-medium .risk-fill{background:var(--amber);}
.risk-high .risk-fill{background:var(--red);}
.risk-label{font-size:.68rem;font-weight:600;min-width:30px;text-align:right;}

/* ── Progress Bars ── */
.progress-bar-wrap{background:var(--border);border-radius:99px;overflow:hidden;}
.progress-fill{height:8px;border-radius:99px;transition:width .6s ease;}
.pf-blue{background:var(--blue);}
.pf-green{background:var(--green);}
.pf-amber{background:var(--amber);}
.pf-red{background:var(--red);}
.pf-teal{background:var(--teal);}

/* ── Avatar ── */
.avatar{
  border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-weight:700;color:#fff;flex-shrink:0;
}
.av-32{width:32px;height:32px;font-size:.72rem;}
.av-40{width:40px;height:40px;font-size:.82rem;}
.av-48{width:48px;height:48px;font-size:.9rem;}
.av-blue{background:var(--blue);}
.av-green{background:var(--green);}
.av-teal{background:var(--teal);}
.av-purple{background:var(--purple);}
.av-amber{background:#d97706;}
.av-red{background:var(--red);}

/* ── Filter Bar ── */
.filter-bar{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  margin-bottom:16px;
}
.filter-input-wrap{
  position:relative;flex:1;min-width:200px;
}
.filter-input-wrap i{
  position:absolute;left:10px;top:50%;transform:translateY(-50%);
  color:var(--text-muted);font-size:.85rem;
}
.filter-input{
  width:100%;padding:7px 10px 7px 32px;
  border:1px solid var(--border);border-radius:var(--radius-sm);
  font-size:.78rem;outline:none;background:var(--surface);
  color:var(--text-primary);
  transition:border-color var(--transition);
}
.filter-input:focus{border-color:var(--blue);}
.filter-select{
  padding:7px 10px;
  border:1px solid var(--border);border-radius:var(--radius-sm);
  font-size:.78rem;outline:none;background:var(--surface);
  color:var(--text-primary);cursor:pointer;
}
.filter-select:focus{border-color:var(--blue);}

/* ── Tabs ── */
.tabs{display:flex;gap:2px;border-bottom:2px solid var(--border);margin-bottom:20px;}
.tab{
  padding:8px 16px;font-size:.8rem;font-weight:500;
  color:var(--text-muted);cursor:pointer;
  border-bottom:2px solid transparent;margin-bottom:-2px;
  transition:color var(--transition),border-color var(--transition);
  border-radius:var(--radius-sm) var(--radius-sm) 0 0;
}
.tab:hover{color:var(--text-primary);}
.tab.active{color:var(--blue);border-bottom-color:var(--blue);font-weight:600;}

/* ── Alert Banners ── */
.alert-banner{
  display:flex;align-items:flex-start;gap:12px;
  padding:12px 16px;border-radius:var(--radius);
  margin-bottom:16px;font-size:.78rem;
}
.ab-warning{background:#fffbeb;border:1px solid #fde68a;color:#78350f;}
.ab-error{background:#fef2f2;border:1px solid #fecaca;color:#7f1d1d;}
.ab-info{background:var(--blue-50);border:1px solid #bfdbfe;color:#1e3a8a;}
.ab-success{background:#f0fdf4;border:1px solid #bbf7d0;color:#14532d;}
.ab-icon{font-size:1rem;flex-shrink:0;margin-top:1px;}

/* ── Stat Mini ── */
.stat-mini{
  display:flex;align-items:center;justify-content:space-between;
  padding:10px 0;
  border-bottom:1px solid var(--border);
}
.stat-mini:last-child{border-bottom:none;}
.sm-label{font-size:.75rem;color:var(--text-secondary);display:flex;align-items:center;gap:6px;}
.sm-label i{color:var(--text-muted);}
.sm-value{font-size:.82rem;font-weight:700;color:var(--text-primary);}

/* ── Data Import Row ── */
.import-row{
  display:flex;align-items:center;gap:14px;
  padding:10px 0;
  border-bottom:1px solid var(--border);
}
.import-row:last-child{border-bottom:none;}
.import-icon{
  width:34px;height:34px;border-radius:var(--radius-sm);
  background:var(--surface-2);border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;
  font-size:1rem;color:var(--text-muted);flex-shrink:0;
}
.import-info{flex:1;}
.import-name{font-size:.78rem;font-weight:600;color:var(--text-primary);}
.import-meta{font-size:.68rem;color:var(--text-muted);}
.import-badge{flex-shrink:0;}

/* ── Student Card (Profile) ── */
.student-profile-header{
  background:linear-gradient(135deg,var(--navy) 0%,var(--navy-700) 100%);
  border-radius:var(--radius-xl);
  padding:28px;
  margin-bottom:20px;
  color:#fff;
  position:relative;overflow:hidden;
}
.student-profile-header::before{
  content:'';position:absolute;
  top:-40px;right:-40px;
  width:200px;height:200px;
  background:rgba(255,255,255,.04);
  border-radius:50%;
}
.sph-main{display:flex;align-items:flex-start;gap:20px;}
.sph-avatar{
  width:64px;height:64px;border-radius:50%;
  background:var(--blue);
  display:flex;align-items:center;justify-content:center;
  font-size:1.4rem;font-weight:700;color:#fff;
  border:3px solid rgba(255,255,255,.2);flex-shrink:0;
}
.sph-info{flex:1;}
.sph-name{font-size:1.35rem;font-weight:700;letter-spacing:-.02em;}
.sph-sub{font-size:.78rem;color:rgba(255,255,255,.65);margin-top:4px;}
.sph-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px;}
.sph-tag{
  padding:3px 10px;border-radius:99px;
  font-size:.68rem;font-weight:600;
  background:rgba(255,255,255,.12);color:rgba(255,255,255,.9);
}
.sph-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:20px;}
.sph-stat{background:rgba(255,255,255,.08);border-radius:var(--radius);padding:12px;}
.sph-stat-label{font-size:.63rem;color:rgba(255,255,255,.5);text-transform:uppercase;letter-spacing:.05em;}
.sph-stat-value{font-size:1.3rem;font-weight:700;margin-top:4px;}

/* ── Timeline ── */
.timeline{position:relative;padding-left:20px;}
.timeline::before{
  content:'';position:absolute;left:7px;top:0;bottom:0;
  width:2px;background:var(--border);border-radius:99px;
}
.tl-item{position:relative;padding:0 0 20px 20px;}
.tl-dot{
  position:absolute;left:-20px;top:3px;
  width:14px;height:14px;border-radius:50%;
  border:2px solid var(--surface);
  flex-shrink:0;
}
.tl-dot.td-blue{background:var(--blue);}
.tl-dot.td-green{background:var(--green);}
.tl-dot.td-amber{background:var(--amber);}
.tl-dot.td-red{background:var(--red);}
.tl-title{font-size:.78rem;font-weight:600;color:var(--text-primary);}
.tl-desc{font-size:.72rem;color:var(--text-secondary);margin-top:2px;}
.tl-time{font-size:.68rem;color:var(--text-muted);margin-top:4px;}

/* ── Heatmap ── */
.heatmap-grid{display:grid;gap:3px;}
.hm-cell{
  height:22px;border-radius:3px;
  display:flex;align-items:center;justify-content:center;
  font-size:.62rem;font-weight:600;cursor:pointer;
  transition:transform var(--transition);
}
.hm-cell:hover{transform:scale(1.1);}
.hm-0{background:#f1f5f9;color:var(--text-muted);}
.hm-1{background:#dbeafe;color:#1e40af;}
.hm-2{background:#93c5fd;color:#1e3a8a;}
.hm-3{background:#3b82f6;color:#fff;}
.hm-4{background:var(--blue-600);color:#fff;}
.hm-low{background:#fee2e2;color:#991b1b;}
.hm-med{background:#fef3c7;color:#78350f;}
.hm-high{background:#d1fae5;color:#065f46;}

/* ── MTSS Funnel ── */
.mtss-tier-block{
  border-radius:var(--radius-lg);padding:16px 20px;
  margin-bottom:12px;border:1px solid;
}
.mtss-t1{background:#eff6ff;border-color:#bfdbfe;}
.mtss-t2{background:#fffbeb;border-color:#fde68a;}
.mtss-t3{background:#fef2f2;border-color:#fecaca;}
.mtss-tier-header{display:flex;align-items:center;justify-content:space-between;}
.mtss-tier-label{font-size:.78rem;font-weight:700;}
.mtss-t1 .mtss-tier-label{color:#1e40af;}
.mtss-t2 .mtss-tier-label{color:#92400e;}
.mtss-t3 .mtss-tier-label{color:#991b1b;}
.mtss-tier-count{font-size:1.4rem;font-weight:800;}
.mtss-tier-pct{font-size:.72rem;color:var(--text-muted);}
.mtss-tier-bar{margin-top:8px;}

/* ── Integration Status Card ── */
.integration-card{
  display:flex;align-items:center;gap:14px;
  padding:14px 16px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  margin-bottom:10px;
  transition:box-shadow var(--transition);
}
.integration-card:hover{box-shadow:var(--shadow);}
.int-icon{
  width:42px;height:42px;border-radius:var(--radius);
  display:flex;align-items:center;justify-content:center;
  font-size:1.1rem;font-weight:700;flex-shrink:0;
}
.int-info{flex:1;}
.int-name{font-size:.82rem;font-weight:700;color:var(--text-primary);}
.int-desc{font-size:.72rem;color:var(--text-muted);}
.int-meta{font-size:.68rem;color:var(--text-muted);margin-top:3px;}
.int-status{text-align:right;flex-shrink:0;}
.int-status-time{font-size:.68rem;color:var(--text-muted);margin-top:4px;}

/* ── Report Row ── */
.report-item{
  display:flex;align-items:center;gap:14px;
  padding:12px 16px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  margin-bottom:10px;
  transition:box-shadow var(--transition),transform var(--transition);
}
.report-item:hover{box-shadow:var(--shadow);transform:translateY(-1px);}
.ri-icon{
  width:40px;height:40px;border-radius:var(--radius-sm);
  display:flex;align-items:center;justify-content:center;
  font-size:1.1rem;flex-shrink:0;
}
.ri-info{flex:1;}
.ri-name{font-size:.82rem;font-weight:600;color:var(--text-primary);}
.ri-sub{font-size:.71rem;color:var(--text-muted);}
.ri-actions{display:flex;align-items:center;gap:8px;flex-shrink:0;}

/* ── School Comparison Row ── */
.school-row{display:flex;align-items:center;gap:12px;padding:8px 0;border-bottom:1px solid var(--border);}
.school-row:last-child{border-bottom:none;}
.school-rank{
  width:24px;height:24px;border-radius:50%;
  background:var(--surface-2);border:1px solid var(--border);
  font-size:.68rem;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  flex-shrink:0;
}
.school-name-col{flex:1;font-size:.78rem;font-weight:600;}
.school-metric-col{min-width:60px;text-align:right;font-size:.78rem;font-weight:700;}
.school-bar-col{width:100px;}

/* ── User Role Pills ── */
.role-pill{
  padding:3px 10px;border-radius:99px;
  font-size:.67rem;font-weight:600;
}
.rp-admin{background:#ede9fe;color:#5b21b6;}
.rp-principal{background:var(--blue-100);color:#1e40af;}
.rp-teacher{background:var(--green-100);color:#065f46;}
.rp-counselor{background:var(--teal-100);color:#115e59;}
.rp-viewer{background:#f1f5f9;color:var(--text-muted);}

/* ── Notification Panel ── */
.notif-panel{
  position:fixed;top:var(--topbar-h);right:-360px;
  width:360px;height:calc(100vh - var(--topbar-h));
  background:var(--surface);
  border-left:1px solid var(--border);
  box-shadow:var(--shadow-lg);
  z-index:500;
  transition:right .25s ease;
  display:flex;flex-direction:column;
}
.notif-panel.open{right:0;}
.np-header{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 16px 12px;
  border-bottom:1px solid var(--border);
  flex-shrink:0;
}
.np-header h3{font-size:.9rem;font-weight:700;}
.np-body{flex:1;overflow-y:auto;padding:8px 0;}
.notif-item{
  display:flex;align-items:flex-start;gap:12px;
  padding:12px 16px;
  transition:background var(--transition);
  cursor:pointer;
}
.notif-item:hover{background:var(--surface-2);}
.ni-icon{
  width:34px;height:34px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:.9rem;flex-shrink:0;margin-top:1px;
}
.ni-alert .ni-icon{background:var(--red-100);color:var(--red);}
.ni-sync .ni-icon{background:var(--blue-100);color:var(--blue);}
.ni-report .ni-icon{background:var(--purple-100);color:var(--purple);}
.ni-attend .ni-icon{background:var(--amber-100);color:var(--amber);}
.ni-title{font-size:.78rem;font-weight:600;color:var(--text-primary);}
.ni-desc{font-size:.72rem;color:var(--text-muted);margin-top:3px;line-height:1.5;}
.ni-time{font-size:.67rem;color:var(--text-muted);margin-top:5px;}

/* ── Search Modal ── */
.search-modal{
  position:fixed;top:0;left:0;right:0;bottom:0;
  display:flex;align-items:flex-start;justify-content:center;
  padding-top:80px;z-index:900;
  pointer-events:none;opacity:0;
  transition:opacity .18s ease;
}
.search-modal.open{opacity:1;pointer-events:all;}
.sm-inner{
  width:100%;max-width:580px;
  background:var(--surface);
  border-radius:var(--radius-xl);
  box-shadow:var(--shadow-lg),0 0 0 1px var(--border);
  overflow:hidden;
  transform:translateY(-12px);
  transition:transform .18s ease;
}
.search-modal.open .sm-inner{transform:translateY(0);}
.sm-input-wrap{
  display:flex;align-items:center;gap:10px;
  padding:14px 16px;
  border-bottom:1px solid var(--border);
}
.sm-icon{font-size:1.1rem;color:var(--text-muted);}
#search-input{
  flex:1;border:none;outline:none;
  font-size:.9rem;color:var(--text-primary);background:transparent;
  font-family:var(--font);
}
.sm-input-wrap kbd{
  padding:2px 6px;border-radius:4px;
  background:var(--surface-2);border:1px solid var(--border);
  font-size:.68rem;color:var(--text-muted);font-family:var(--font);
}
.sm-results{padding:8px 0;}
.smr-group{margin-bottom:8px;}
.smr-label{
  padding:6px 16px;
  font-size:.63rem;font-weight:700;
  color:var(--text-muted);letter-spacing:.08em;text-transform:uppercase;
}
.smr-item{
  display:flex;align-items:center;gap:12px;
  padding:9px 16px;cursor:pointer;
  transition:background var(--transition);
}
.smr-item:hover{background:var(--surface-2);}
.smr-item i{font-size:1rem;color:var(--text-muted);}
.smri-name{font-size:.8rem;font-weight:600;}
.smri-sub{font-size:.7rem;color:var(--text-muted);}

/* ── Overlay backdrop ── */
.overlay-backdrop{
  position:fixed;top:0;left:0;right:0;bottom:0;
  background:rgba(15,23,42,.4);z-index:400;
  opacity:0;pointer-events:none;
  transition:opacity .2s ease;
}
.overlay-backdrop.open{opacity:1;pointer-events:all;}
.search-overlay{z-index:800;}
.search-overlay.open{pointer-events:all;opacity:1;}

/* ── Section Gap ── */
.section-gap{margin-bottom:20px;}
.mb-16{margin-bottom:16px;}
.mb-12{margin-bottom:12px;}
.mt-16{margin-top:16px;}
.mt-12{margin-top:12px;}

/* ── Divider ── */
.divider{height:1px;background:var(--border);margin:16px 0;}

/* ── Empty State ── */
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  padding:48px 24px;text-align:center;
}
.empty-icon{font-size:2.5rem;color:var(--border-2);margin-bottom:12px;}
.empty-title{font-size:.9rem;font-weight:700;color:var(--text-primary);}
.empty-sub{font-size:.78rem;color:var(--text-muted);margin-top:6px;}

/* ── Admin / Settings ── */
.settings-section{margin-bottom:28px;}
.settings-title{
  font-size:.78rem;font-weight:700;
  color:var(--text-muted);text-transform:uppercase;
  letter-spacing:.06em;margin-bottom:12px;
}
.settings-item{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 0;border-bottom:1px solid var(--border);gap:16px;
}
.settings-item:last-child{border-bottom:none;}
.settings-item-label{font-size:.8rem;font-weight:500;color:var(--text-primary);}
.settings-item-sub{font-size:.72rem;color:var(--text-muted);margin-top:2px;}
.toggle{position:relative;display:inline-block;width:36px;height:20px;flex-shrink:0;}
.toggle input{opacity:0;width:0;height:0;}
.toggle-slider{
  position:absolute;cursor:pointer;
  top:0;left:0;right:0;bottom:0;
  background:var(--border-2);border-radius:99px;
  transition:.2s;
}
.toggle-slider::before{
  content:'';position:absolute;
  height:14px;width:14px;left:3px;bottom:3px;
  background:white;border-radius:50%;
  transition:.2s;
}
.toggle input:checked + .toggle-slider{background:var(--blue);}
.toggle input:checked + .toggle-slider::before{transform:translateX(16px);}

/* ── Footer ── */
.page-footer{
  padding:20px 0 4px;
  border-top:1px solid var(--border);
  margin-top:24px;
  font-size:.7rem;color:var(--text-muted);
  text-align:center;
}

/* ── Responsive ── */
@media(max-width:768px){
  #sidebar{
    position:fixed;left:-260px;height:100%;
    transition:left .25s ease;z-index:300;
  }
  #sidebar.mobile-open{left:0;}
  #page-content{padding:16px;}
  .kpi-grid{grid-template-columns:1fr 1fr;}
  .topbar-center{display:none;}
}
@media(max-width:480px){
  .kpi-grid{grid-template-columns:1fr;}
  .sph-stats{grid-template-columns:repeat(2,1fr);}
  .page-header-row{flex-direction:column;}
}

/* ── Animations ── */
@keyframes fadeUp{from{opacity:0;transform:translateY(10px);}to{opacity:1;transform:translateY(0);}}
.page-content-inner{animation:fadeUp .25s ease;}
@keyframes pulseGreen{0%,100%{box-shadow:0 0 0 0 rgba(16,185,129,.4);}50%{box-shadow:0 0 0 5px rgba(16,185,129,0);}}
.pulse-green{animation:pulseGreen 2s infinite;}

/* ── Sync Health ── */
.sync-health-bar{
  display:flex;height:8px;border-radius:99px;overflow:hidden;gap:2px;
  margin:8px 0;
}
.shb-seg{height:100%;border-radius:2px;}
.shb-ok{background:var(--green);}
.shb-warn{background:var(--amber);}
.shb-err{background:var(--red);}

/* ── Chip input multi-select look ── */
.chip-list{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px;}
.chip{
  padding:4px 10px;border-radius:99px;
  background:var(--blue-100);color:var(--blue-600);
  font-size:.72rem;font-weight:600;
  display:flex;align-items:center;gap:4px;
}
.chip-remove{cursor:pointer;opacity:.7;}
.chip-remove:hover{opacity:1;}

/* ── Goal tracking ── */
.goal-track{margin:8px 0;}
.gt-labels{display:flex;justify-content:space-between;font-size:.68rem;color:var(--text-muted);margin-bottom:4px;}
.gt-bar{height:10px;background:var(--border);border-radius:99px;overflow:hidden;position:relative;}
.gt-fill{height:100%;border-radius:99px;position:relative;}
.gt-target{
  position:absolute;top:-3px;width:2px;height:16px;
  background:var(--text-muted);border-radius:1px;
}

/* demographic mini breakdown */
.demo-row{display:flex;align-items:center;gap:10px;margin-bottom:8px;}
.demo-label{font-size:.72rem;color:var(--text-secondary);min-width:110px;}
.demo-bar-wrap{flex:1;height:8px;background:var(--border);border-radius:99px;overflow:hidden;}
.demo-fill{height:100%;border-radius:99px;background:var(--blue);}
.demo-value{font-size:.72rem;font-weight:700;min-width:36px;text-align:right;}

/* ── Audit log ── */
.audit-row{display:flex;align-items:flex-start;gap:12px;padding:10px 0;border-bottom:1px solid var(--border);}
.audit-row:last-child{border-bottom:none;}
.audit-icon{width:28px;height:28px;border-radius:50%;background:var(--surface-2);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;font-size:.75rem;color:var(--text-muted);flex-shrink:0;margin-top:1px;}
.audit-body{flex:1;}
.audit-action{font-size:.77rem;font-weight:600;color:var(--text-primary);}
.audit-detail{font-size:.7rem;color:var(--text-muted);}
.audit-time{font-size:.67rem;color:var(--text-muted);margin-top:3px;}

/* ── Timeline aliases (tl-date / tl-sub / tl-title) ── */
.tl-date{font-size:.67rem;color:var(--text-muted);margin-bottom:3px;font-weight:500;}
.tl-sub{font-size:.7rem;color:var(--text-secondary);margin-top:2px;}
/* .tl-title already defined above */

/* ── Sync Health alias ── */
.shb-error{background:var(--red);}

/* ── Pagination ── */
.pagination{display:flex;align-items:center;gap:4px;}
.pg-btn{
  min-width:32px;height:32px;padding:0 6px;
  border-radius:var(--radius-sm);
  font-size:.78rem;font-weight:600;
  background:transparent;color:var(--text-secondary);
  border:1px solid transparent;
  transition:all var(--transition);
  display:flex;align-items:center;justify-content:center;
}
.pg-btn:hover{background:var(--surface-2);border-color:var(--border);}
.pg-btn.pg-active{background:var(--blue);color:#fff;border-color:var(--blue);}
.pg-btn:disabled{opacity:.35;cursor:not-allowed;}
.pg-nav{background:var(--surface);border:1px solid var(--border);color:var(--text-secondary);}
.pg-nav:hover:not(:disabled){background:var(--surface-2);}
.pg-ellipsis{font-size:.8rem;color:var(--text-muted);padding:0 4px;display:flex;align-items:center;height:32px;}
.stu-footer{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 20px;
  border:1px solid var(--border);border-top:none;
  border-radius:0 0 var(--radius-lg) var(--radius-lg);
  background:var(--surface-2);
  font-size:.74rem;color:var(--text-muted);
}

/* ── Sortable table headers ── */
.sort-th{cursor:pointer;user-select:none;white-space:nowrap;}
.sort-th:hover{color:var(--text-primary)!important;}
.sort-icon{font-size:.65rem;margin-left:4px;vertical-align:middle;}

/* ── Student directory cells ── */
.student-cell{display:flex;align-items:center;gap:10px;}
.student-name{font-weight:600;font-size:.8rem;}
.student-id{font-size:.68rem;color:var(--text-muted);}
.school-cell{font-size:.75rem;}
.badge-group{display:flex;gap:4px;flex-wrap:wrap;}
.attend-val{font-weight:700;font-size:.8rem;}
.text-muted-sm{color:var(--text-muted);font-size:.72rem;}

/* ── Quick preview drawer ── */
.stu-preview-drawer{
  position:fixed;right:-420px;top:var(--topbar-h);
  width:400px;height:calc(100vh - var(--topbar-h));
  background:var(--surface);
  border-left:1px solid var(--border);
  box-shadow:var(--shadow-lg);
  z-index:600;
  transition:right .25s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;
  overflow:hidden;
}
.stu-preview-drawer.open{right:0;}
.spd-header{
  padding:16px 18px;
  background:linear-gradient(135deg,var(--navy),var(--navy-700));
  color:#fff;flex-shrink:0;
}
.spd-close{
  position:absolute;top:12px;right:14px;
  background:rgba(255,255,255,.12);border:none;
  color:#fff;width:28px;height:28px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;font-size:1rem;
  transition:background var(--transition);
}
.spd-close:hover{background:rgba(255,255,255,.22);}
.spd-body{flex:1;overflow-y:auto;padding:16px;}
.spd-section{margin-bottom:16px;}
.spd-section-title{font-size:.65rem;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:var(--text-muted);margin-bottom:8px;}

/* ── Live sync indicator ── */
.live-dot{
  display:inline-block;width:7px;height:7px;border-radius:50%;
  background:var(--green);margin-right:5px;flex-shrink:0;
  animation:livePulse 2.4s ease-in-out infinite;
}
@keyframes livePulse{
  0%,100%{opacity:1;transform:scale(1);}
  50%{opacity:.55;transform:scale(.8);}
}
.live-indicator{
  display:inline-flex;align-items:center;gap:5px;
  font-size:.68rem;color:var(--text-muted);
}

/* ── Operational status bar ── */
.op-status-bar{
  display:flex;align-items:center;gap:16px;
  padding:8px 20px;
  background:var(--surface-2);
  border-bottom:1px solid var(--border);
  font-size:.7rem;color:var(--text-muted);
  flex-shrink:0;overflow-x:auto;
}
.op-item{display:flex;align-items:center;gap:5px;white-space:nowrap;}
.op-item strong{color:var(--text-secondary);}

/* ── Card interactive (hover with border highlight) ── */
.card-interactive{
  transition:box-shadow var(--transition),transform var(--transition),border-color var(--transition);
}
.card-interactive:hover{
  box-shadow:var(--shadow);
  transform:translateY(-1px);
  border-color:var(--border-2);
}

/* ── Data loading skeleton ── */
.skel{
  background:linear-gradient(90deg,var(--surface-2) 25%,var(--border) 50%,var(--surface-2) 75%);
  background-size:200% 100%;
  animation:skelShim 1.4s infinite;
  border-radius:var(--radius-sm);
}
@keyframes skelShim{from{background-position:200% 0;}to{background-position:-200% 0;}}
.skel-text{height:12px;margin-bottom:8px;}
.skel-text.wide{width:80%;}
.skel-text.med{width:55%;}
.skel-text.narrow{width:35%;}

/* ── Notification badge (topbar) ── */
.notif-count{
  position:absolute;top:4px;right:4px;
  min-width:16px;height:16px;padding:0 3px;
  background:var(--red);color:#fff;
  font-size:.58rem;font-weight:700;
  border-radius:99px;
  display:flex;align-items:center;justify-content:center;
  border:2px solid var(--surface);
  line-height:1;
}

/* ── Activity feed ── */
.activity-feed{padding:0;}
.af-item{
  display:flex;align-items:flex-start;gap:10px;
  padding:9px 14px;
  border-bottom:1px solid var(--border);
  transition:background var(--transition);
}
.af-item:last-child{border-bottom:none;}
.af-item:hover{background:var(--surface-2);}
.af-icon{
  width:28px;height:28px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:.78rem;flex-shrink:0;margin-top:1px;
}
.af-sync .af-icon{background:var(--blue-100);color:var(--blue);}
.af-alert .af-icon{background:var(--red-100);color:var(--red);}
.af-report .af-icon{background:var(--purple-100);color:var(--purple);}
.af-mtss .af-icon{background:var(--amber-100);color:var(--amber);}
.af-attend .af-icon{background:var(--teal-100);color:var(--teal);}
.af-info .af-icon{background:var(--green-100);color:var(--green);}
.af-body{flex:1;min-width:0;}
.af-title{font-size:.77rem;font-weight:600;color:var(--text-primary);}
.af-sub{font-size:.7rem;color:var(--text-muted);margin-top:2px;line-height:1.45;}
.af-time{font-size:.65rem;color:var(--text-muted);white-space:nowrap;flex-shrink:0;padding-top:2px;}

/* ── Export confirmation toast ── */
.toast{
  position:fixed;bottom:24px;right:24px;
  background:var(--navy);color:#fff;
  padding:10px 16px;border-radius:var(--radius);
  font-size:.78rem;font-weight:500;
  display:flex;align-items:center;gap:8px;
  box-shadow:var(--shadow-lg);z-index:950;
  transform:translateY(80px);opacity:0;
  transition:transform .22s ease,opacity .22s ease;
}
.toast.show{transform:translateY(0);opacity:1;}
.toast i{color:var(--green);}

/* ── Table row with inline expand ── */
.tr-expandable td{transition:background var(--transition);}
.tr-expand-row td{padding:0;border-bottom:1px solid var(--border);}
.tr-expand-inner{padding:16px;background:var(--surface-2);font-size:.78rem;}

/* ── Search result highlight ── */
mark{background:rgba(26,86,219,.12);color:var(--blue);border-radius:2px;padding:0 2px;}

/* ── Page header sync status ── */
.page-sync-status{
  display:flex;align-items:center;gap:6px;
  font-size:.7rem;color:var(--text-muted);
  padding:4px 10px;border-radius:99px;
  background:var(--surface-2);border:1px solid var(--border);
}

/* ── County stats bar ── */
.county-bar{
  display:grid;grid-template-columns:repeat(6,1fr);gap:0;
  background:var(--navy);border-radius:var(--radius-lg);
  margin-bottom:20px;overflow:hidden;
}
.cb-item{
  padding:14px 18px;border-right:1px solid rgba(255,255,255,.06);
  text-align:center;
}
.cb-item:last-child{border-right:none;}
.cb-val{font-size:1.2rem;font-weight:800;color:#fff;letter-spacing:-.02em;}
.cb-label{font-size:.63rem;color:rgba(255,255,255,.45);text-transform:uppercase;letter-spacing:.05em;margin-top:3px;}
@media(max-width:900px){.county-bar{grid-template-columns:repeat(3,1fr);}.cb-item{border-bottom:1px solid rgba(255,255,255,.06);}}
@media(max-width:480px){.county-bar{grid-template-columns:repeat(2,1fr);}}