:root{
  /* EVOLUTION IDENTITY — blue-on-graphite from the cap logo; mint = money */
  --brand:#1E9BE9; --brand-dark:#0F6FB5; --brand-darker:#0B527F; --brand-bg:#E8F4FD;
  --text-primary:#2A3138; --text-secondary:#5B6873; --text-muted:#7A868F; --text-faint:#A3AFB8;
  --border:#DFE7EE; --border-light:#EAF0F5;
  --surface:#fff; --surface-alt:#EFF4F9;
  --danger:#E14638; --danger-alt:#FF6355; --danger-bg:#FDEBE9; --danger-bg-strong:#F8CFCA; --danger-text-strong:#BE3428;
  --warning:#B27400; --warning-bg:#FFF4DE; --warning-border:#F1DCA8; --warning-text:#8A5A00;
  --info:#0F6FB5;
  --mint:#19BD86; --sky:#1E9BE9; --sun:#FFB020; --coral:#FF6355;
  --graphite:#232B33; --graphite-2:#1B2229;
  --glass:#FFFFFF; --glass-border:#DFE7EE;
  --sh-1:0 4px 16px rgba(30,80,130,.09); --sh-2:0 14px 34px rgba(30,80,130,.15);
  --aurora:#F7FAFC;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%;overflow:hidden}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;color:var(--text-primary);font-size:14px;background:var(--surface-alt);display:flex;flex-direction:column}
.titlebar{height:32px;background:linear-gradient(135deg,#0d7a58,#0a6347);display:flex;align-items:center;padding:0 16px;-webkit-app-region:drag;flex-shrink:0;user-select:none;gap:8px}
.titlebar-icon{width:16px;height:16px;background:var(--surface);border-radius:4px;display:flex;align-items:center;justify-content:center}
.titlebar-title{font-size:12px;color:rgba(255,255,255,.85);font-weight:500}
.titlebar-db{font-size:11px;color:rgba(255,255,255,.5);margin-left:auto;max-width:400px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.app{display:flex;flex:1;overflow:hidden}
/* Sidebar */
.sidebar{width:220px;background:rgba(255,255,255,.55);display:flex;flex-direction:column;flex-shrink:0}
.sidebar-logo{padding:18px 16px 14px;border-bottom:1px solid rgba(255,255,255,.15)}
.logo-row{display:flex;align-items:center;gap:10px}
.logo-icon{width:36px;height:36px;border-radius:10px;background:rgba(255,255,255,.2);display:flex;align-items:center;justify-content:center}
.logo-title{color:var(--surface);font-size:15px;font-weight:700}
.logo-sub{color:rgba(255,255,255,.65);font-size:10px;margin-top:1px}
.sidebar-kpis{padding:10px 16px;border-bottom:1px solid rgba(255,255,255,.15)}
.skpi{display:flex;justify-content:space-between;align-items:center;padding:3px 0}
.skpi-label{font-size:10px;color:rgba(255,255,255,.65);font-weight:600;text-transform:uppercase;letter-spacing:.4px}
.skpi-val{font-size:15px;font-weight:700;color:var(--surface)}
.sidebar-nav{flex:1;overflow-y:auto;padding:6px 0}
.nav-item{display:flex;align-items:center;gap:10px;padding:9px 16px;cursor:pointer;color:rgba(255,255,255,.7);font-size:13px;font-weight:500;transition:all .2s;border-left:3px solid transparent}
.nav-item:hover{background:rgba(255,255,255,.12);color:var(--surface)}
.nav-item.active{background:rgba(255,255,255,.18);color:var(--surface);border-left-color:var(--surface)}
.nav-item i{font-size:16px;flex-shrink:0}
.nav-badge{margin-left:auto;font-size:10px;background:var(--danger-alt);color:var(--surface);border-radius:99px;padding:1px 6px;font-weight:600}
.sidebar-bottom{padding:10px 16px;border-top:1px solid rgba(255,255,255,.15)}
.sidebar-date{font-size:10px;color:rgba(255,255,255,.55);margin-bottom:6px}
.lang-btn{flex:1;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);color:rgba(255,255,255,.6);font-size:10px;font-weight:700;padding:4px 0;border-radius:6px;cursor:pointer;letter-spacing:.5px}
.lang-btn.active{background:var(--brand);border-color:var(--brand);color:var(--surface)}
.btn-settings{width:100%;padding:6px 10px;border:1px solid rgba(255,255,255,.25);border-radius:8px;background:rgba(255,255,255,.1);color:rgba(255,255,255,.8);cursor:pointer;font-size:11px;font-weight:500;display:flex;align-items:center;gap:6px;transition:all .2s}
.btn-settings:hover{background:rgba(255,255,255,.2);color:var(--surface)}
/* Content */
.content{flex:1;overflow-y:auto;display:flex;flex-direction:column}
.topbar{display:flex;align-items:center;gap:12px;padding:14px 24px;background:var(--surface);border-bottom:1px solid var(--border-light);flex-shrink:0}
.topbar-title{font-size:16px;font-weight:700;color:var(--text-primary);flex:1}
.search-box{display:flex;align-items:center;gap:8px;background:var(--surface-alt);border:1px solid var(--border);border-radius:10px;padding:7px 12px;width:220px}
.search-box i{color:var(--text-faint);font-size:14px}
.search-box input{border:none;background:transparent;outline:none;font-size:13px;color:var(--text-primary);width:100%}
.tab-content{padding:24px;flex:1}
/* KPIs */
.kpi-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px;margin-bottom:20px}
.kpi{background:var(--surface);border-radius:14px;padding:16px;box-shadow:0 2px 10px rgba(0,0,0,.06);border-left:4px solid var(--brand)}
.kpi-label{font-size:11px;color:var(--text-muted);margin-bottom:6px;font-weight:600;text-transform:uppercase;letter-spacing:.4px;display:flex;align-items:center;gap:5px}
.kpi-val{font-size:26px;font-weight:700;color:var(--brand)}
/* Add panel */
.add-panel{background:var(--surface);border-radius:14px;padding:16px;box-shadow:0 2px 10px rgba(0,0,0,.06);margin-bottom:18px}
.section-title{font-size:11px;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:.6px;margin-bottom:10px}
.add-row{display:flex;gap:8px;margin-bottom:8px;flex-wrap:wrap}
.add-row:last-child{margin-bottom:0}
.add-row input,.add-row select,.fi{flex:1;min-width:100px;padding:8px 10px;border:1.5px solid var(--border);border-radius:8px;background:var(--surface);color:var(--text-primary);font-size:13px;transition:border-color .2s}
.add-row input:focus,.add-row select:focus,.fi:focus{outline:none;border-color:var(--brand)}
.fg{display:flex;flex-direction:column;gap:4px;flex:1;min-width:120px}
.fg label{font-size:10px;color:var(--text-muted);font-weight:600;text-transform:uppercase;letter-spacing:.4px}
/* Comfortable date inputs: whole field is clickable (not just the tiny native
   icon) and the icon itself is enlarged so it's an easy, obvious target. */
input[type="date"]{cursor:pointer}
input[type="date"]::-webkit-calendar-picker-indicator{
  cursor:pointer;padding:7px;margin-right:-2px;border-radius:7px;
  transform:scale(1.35);transition:background .15s;
}
input[type="date"]::-webkit-calendar-picker-indicator:hover{background:var(--brand-bg)}
/* Buttons */
.btn{padding:8px 16px;border-radius:8px;border:none;cursor:pointer;font-size:13px;font-weight:600;transition:all .2s;display:inline-flex;align-items:center;gap:6px}
.btn-primary{background:var(--brand);color:var(--surface)}.btn-primary:hover{background:var(--brand-dark)}
.btn-secondary{background:var(--surface-alt);color:var(--text-secondary);border:1.5px solid var(--border)}.btn-secondary:hover{background:var(--surface-alt)}
.btn-danger{background:var(--danger-bg);color:var(--danger);border:1.5px solid var(--danger-bg-strong)}.btn-danger:hover{background:var(--danger-bg-strong)}
.btn-warn{background:#FFF7ED;color:var(--warning);border:1.5px solid #fed7aa}.btn-warn:hover{background:#fed7aa}
.btn-sm{padding:4px 10px;font-size:11px;border-radius:7px}
/* Filter */
.filter-row{display:flex;gap:8px;margin-bottom:14px;flex-wrap:wrap}
.filter-row select{padding:7px 10px;border:1.5px solid var(--border);border-radius:8px;background:var(--surface);color:var(--text-primary);font-size:12px}
.filter-row select:focus{outline:none;border-color:var(--brand)}
/* Cards */
.card{background:var(--surface);border-radius:14px;overflow:hidden;margin-bottom:10px;box-shadow:0 2px 10px rgba(0,0,0,.06);border:1px solid var(--surface-alt);transition:box-shadow .2s}
.card:hover{box-shadow:0 6px 20px rgba(0,0,0,.1)}
.card-header{display:flex;align-items:center;gap:12px;padding:14px 16px;cursor:pointer;background:var(--surface-alt);transition:background .15s}
.card-header:hover{background:var(--surface-alt)}
.avatar{width:40px;height:40px;border-radius:10px;background:var(--brand-bg);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;color:var(--brand);flex-shrink:0}
.av-t{background:#EEF4FF;color:var(--info)}.av-c{background:#FFF4E6;color:var(--warning)}.av-p{background:#F0F9FF;color:#0284C7}.av-g{background:var(--surface-alt);color:var(--text-muted)}
.pill{display:inline-block;font-size:10px;padding:3px 8px;border-radius:6px;font-weight:600;margin-left:3px}
.pill-paid{background:#DBEAFE;color:var(--info)}.pill-unpaid{background:var(--danger-bg);color:var(--danger)}
.pill-t{background:#F0F9FF;color:#0284C7}.pill-c{background:#FFF7ED;color:var(--warning)}.pill-new{background:#F0FFFE;color:#0891B2}
.prog-wrap{width:70px;height:4px;background:var(--border-light);border-radius:3px;overflow:hidden;margin:0 6px;flex-shrink:0}
.prog-bar{height:4px;border-radius:3px;background:var(--brand)}
.card-body{padding:14px 16px;border-top:1px solid var(--surface-alt)}
.list-item{display:flex;align-items:center;gap:10px;padding:10px 16px;border-bottom:1px solid var(--surface-alt)}
.list-item:last-child{border-bottom:none}
.empty{text-align:center;padding:40px 24px;color:var(--text-faint);font-size:13px;background:var(--surface);border-radius:14px;border:1.5px dashed var(--border)}
.empty i{font-size:32px;display:block;margin:0 auto 10px;opacity:.4}
/* Dashboard */
.dash-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.dash-card{background:var(--surface);border-radius:14px;padding:20px;box-shadow:0 2px 10px rgba(0,0,0,.06);border:1px solid var(--surface-alt);transition:box-shadow .2s;cursor:pointer;position:relative;overflow:hidden}
.dash-card:hover{box-shadow:0 6px 20px rgba(0,0,0,.1)}
.dash-card.attn{border-left:4px solid #ef4444}
.dash-card.warn{border-left:4px solid #f59e0b}
.dash-stat{display:flex;justify-content:space-between;font-size:13px;color:var(--text-muted);margin-bottom:6px}
.dash-stat span:last-child{font-weight:700;color:#333;font-variant-numeric:tabular-nums}
.dash-prog-bg{height:7px;background:var(--surface-alt);border-radius:4px;overflow:hidden;margin-bottom:12px}
.dash-prog{height:7px;border-radius:4px;background:linear-gradient(90deg,var(--brand),#0ecdc4)}
.dash-kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:14px;margin-bottom:18px}
.dash-kpi{background:var(--surface);border:1px solid var(--surface-alt);border-radius:14px;padding:16px 18px 14px;box-shadow:0 2px 10px rgba(0,0,0,.06);position:relative;overflow:hidden}
.dash-kpi::before{content:'';position:absolute;top:0;left:-8px;width:52px;height:5px;background:var(--brand);transform:skewX(-18deg)}
.dash-kpi.kpi-danger::before{background:#ef4444}
.dash-kpi.kpi-ok::before{background:var(--brand)}
.dash-kpi.clickable{cursor:pointer;transition:box-shadow .15s}
.dash-kpi.clickable:hover{box-shadow:0 6px 20px rgba(0,0,0,.12)}
.dash-kpi-num{font-size:30px;font-weight:800;line-height:1.1;color:var(--text-primary);font-variant-numeric:tabular-nums}
.dash-kpi-num small{font-size:14px;font-weight:700;color:var(--text-muted)}
.dash-kpi-label{font-size:12px;color:var(--text-muted);margin-top:4px}
.dash-kpi-sub{font-size:11px;margin-top:2px;color:var(--danger-text-strong);font-weight:700}
.dash-prog.warn{background:linear-gradient(90deg,#f59e0b,#fbbf24)}
.dash-prog.danger{background:linear-gradient(90deg,#ef4444,#f87171)}
/* Calendar */
.cal-nav{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.cal-nav button{padding:6px 14px;border:1.5px solid var(--border);border-radius:8px;background:var(--surface);color:var(--text-primary);cursor:pointer;font-size:13px;font-weight:500;transition:all .2s}
.cal-nav button:hover{background:#f0f9f7;border-color:var(--brand)}
.cal-title{font-size:15px;font-weight:700}
.cal-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:3px;margin-bottom:10px}
.cal-dow{text-align:center;font-size:11px;color:var(--text-muted);padding:4px 0;font-weight:600}
.cal-day{min-height:72px;border-radius:8px;border:1px solid var(--border-light);padding:5px;cursor:pointer;background:var(--surface);transition:background .15s}
.cal-day:hover{background:#f0f9f7}
.cal-day.today{border-color:var(--brand);border-width:2px}
.cal-day.other-month{opacity:.3}
.cal-day.sunday-col{background:rgba(226,75,74,.04);cursor:default}
.cal-day-num{font-size:11px;font-weight:600;margin-bottom:3px;color:#333}
.cal-events{display:flex;flex-direction:column;gap:2px}
.cal-event{font-size:9px;padding:1px 4px;border-radius:3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--surface)}
.ev-present{background:var(--brand)}.ev-absent{background:var(--danger-alt)}.ev-sick{background:#EF9F27}
.ev-vacation{background:#9B59B6}.ev-dayoff{background:#5B8DEF}.ev-comp{background:var(--brand-darker)}.ev-sunday{background:var(--danger-alt)}
.ev-class{background:#374151;font-weight:600}
.cal-legend{display:flex;flex-wrap:wrap;gap:10px;font-size:11px;color:var(--text-muted);margin-top:8px}
/* Calendar + daily timetable merged layout */
.cal-layout{display:grid;grid-template-columns:1fr 380px;gap:18px;align-items:start}
@media (max-width:1100px){.cal-layout{grid-template-columns:1fr}}
.cal-filter-row{display:flex;gap:8px;margin-bottom:12px;align-items:center}
.timetable-panel{background:var(--surface);border-radius:14px;box-shadow:0 2px 10px rgba(0,0,0,.06);border:1px solid var(--surface-alt);padding:22px;position:sticky;top:0}
.timetable-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;gap:10px}
.timetable-date{font-size:20px;font-weight:800;color:var(--text-primary)}
.timetable-date-sub{font-size:13px;color:var(--text-muted);margin-top:2px}
.timetable-nav-btn{min-width:40px;height:40px;border-radius:10px;border:1.5px solid var(--border);background:var(--surface);cursor:pointer;color:var(--text-secondary);display:flex;align-items:center;justify-content:center;font-size:16px;padding:0 10px;gap:6px;transition:all .15s}
.timetable-nav-btn:hover{border-color:var(--brand);color:var(--brand);background:#f0f9f7}
.timetable-list{max-height:calc(100vh - 230px);overflow-y:auto}
.timetable-row{border:1.5px solid var(--surface-alt);border-radius:12px;padding:16px 18px;margin-bottom:10px;cursor:pointer;transition:all .15s}
.timetable-row:hover{border-color:var(--brand);box-shadow:0 2px 10px rgba(29,158,117,.1)}
.timetable-row:last-child{margin-bottom:0}
.timetable-time{font-size:15px;font-weight:700;color:var(--brand);background:var(--brand-bg);padding:5px 12px;border-radius:8px;display:inline-block;margin-bottom:8px;font-variant-numeric:tabular-nums}
.timetable-time.no-time{color:var(--text-faint);background:var(--surface-alt)}
.timetable-class-name{font-size:17px;font-weight:700;color:var(--text-primary)}
.timetable-teacher{font-size:13px;color:var(--text-muted);margin-bottom:10px}
.timetable-stats-row{display:flex;gap:16px;flex-wrap:wrap}
.timetable-mini-stat{font-size:12px;color:var(--text-muted);display:flex;align-items:center;gap:6px}
.timetable-mini-bar{width:90px;height:6px;background:var(--surface-alt);border-radius:3px;overflow:hidden}
.timetable-mini-fill{height:6px;border-radius:3px}
.cal-legend span{display:flex;align-items:center;gap:4px}
.cal-dot{width:10px;height:10px;border-radius:2px;flex-shrink:0}
/* Lessons */
.block-tabs{display:flex;gap:4px;flex-wrap:wrap;margin-bottom:12px}
.block-tab{font-size:11px;padding:4px 12px;border-radius:6px;border:1.5px solid var(--border);background:var(--surface);color:var(--text-muted);cursor:pointer;transition:all .2s;font-weight:500}
.block-tab.active{background:var(--brand);border-color:var(--brand-dark);color:var(--surface)}
.pay-row{display:flex;align-items:center;gap:8px;background:var(--surface-alt);border-radius:10px;padding:10px 14px;margin-bottom:14px;flex-wrap:wrap;border:1px solid var(--border-light)}
.pay-btn-paid{background:#DBEAFE;color:var(--info);border:none;font-size:11px;padding:5px 12px;border-radius:8px;cursor:pointer;font-weight:700}
.pay-btn-paid:hover{background:#BFDBFE}
.pay-btn-unpaid{background:var(--danger-bg);color:var(--danger);border:none;font-size:11px;padding:5px 12px;border-radius:8px;cursor:pointer;font-weight:700}
.pay-btn-unpaid:hover{background:var(--danger-bg-strong)}
.lesson-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(195px,1fr));gap:10px;margin-bottom:10px}
.lcard{border:1.5px solid var(--border);border-radius:12px;padding:12px;background:var(--surface);display:flex;flex-direction:column;gap:8px}
.lstate-btn{flex:1;padding:5px 3px;border-radius:7px;border:1.5px solid var(--border);cursor:pointer;font-size:13px;background:var(--surface);color:var(--text-muted);transition:all .15s}
.lstate-btn:hover{border-color:var(--text-faint);background:var(--surface-alt)}
.ldate-row{display:flex;align-items:center;gap:6px;background:var(--surface-alt);border-radius:7px;padding:6px 8px;cursor:pointer;border:1px solid var(--border-light);position:relative}
.ldate-row:hover{background:#f0f9f7;border-color:#c8ede1}
.pay-date-edit:hover{background:var(--brand-bg)}
.status-select{font-size:12px;font-weight:700;padding:6px 12px;border-radius:99px;border:none;cursor:pointer;transition:filter .15s}
.status-select:hover{filter:brightness(0.96)}
.status-select:focus{outline:2px solid rgba(29,158,117,.3)}
.date-overlay-input{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%;height:100%;border:none;margin:0;padding:0}
.act-row{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px;padding-top:8px;border-top:1px solid var(--surface-alt)}
/* Attendance tab */
.att-date-bar{display:flex;align-items:center;gap:10px;margin-bottom:18px;flex-wrap:wrap}
.att-date-nav-btn{padding:8px 12px;border-radius:9px;border:1.5px solid var(--border);background:var(--surface);color:var(--text-secondary);cursor:pointer;font-size:13px;font-weight:600;transition:all .15s}
.att-date-nav-btn:hover{background:#f0f9f7;border-color:var(--brand);color:var(--brand)}
.att-date-picker-wrap{position:relative;display:inline-flex;align-items:center;gap:8px;background:var(--surface);border:1.5px solid var(--border);border-radius:10px;padding:9px 14px;cursor:pointer}
.att-date-picker-wrap:hover{border-color:var(--brand)}
.att-date-label{font-size:14px;font-weight:700;color:var(--text-primary)}
.att-summary-badge{font-size:12px;font-weight:600;padding:6px 12px;border-radius:10px;background:var(--brand-bg);color:var(--brand-dark)}
.att-class-header{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:var(--surface-alt);border-bottom:1px solid var(--surface-alt);gap:10px;flex-wrap:wrap}
.att-class-title{font-weight:700;font-size:13px;color:var(--text-primary);display:flex;align-items:center;gap:8px}
.att-progress-pill{font-size:11px;font-weight:700;color:var(--text-muted);background:var(--surface-alt);padding:3px 9px;border-radius:99px}
.att-progress-pill.complete{background:var(--brand-bg);color:var(--brand-dark)}
.attendance-row{display:flex;align-items:center;gap:10px;padding:10px 16px;border-bottom:1px solid var(--surface-alt)}
.attendance-row:last-child{border-bottom:none}
.att-state-btn{width:32px;height:32px;border-radius:8px;border:1.5px solid var(--border);cursor:pointer;font-size:14px;background:var(--surface);color:var(--text-muted);transition:all .15s;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.att-state-btn:hover{border-color:var(--text-faint);background:var(--surface-alt)}
.att-sunday-banner{text-align:center;padding:48px 24px;color:var(--text-muted);background:var(--surface);border-radius:14px;border:1.5px dashed var(--border)}
/* Modal */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:9999;display:flex;align-items:center;justify-content:center;padding:1rem;animation:fadeIn .15s ease}
.modal{background:var(--surface);border:2px solid var(--brand);border-radius:16px;padding:24px;width:100%;max-width:520px;max-height:85vh;overflow-y:auto;box-shadow:0 20px 60px rgba(0,0,0,.25);animation:slideUp .2s ease-out}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes slideUp{from{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}
.modal h3{font-size:16px;font-weight:700;margin-bottom:16px}
.modal label{font-size:11px;color:var(--text-secondary);display:block;margin-bottom:4px;margin-top:12px;font-weight:600;text-transform:uppercase;letter-spacing:.4px}
.modal input,.modal select{width:100%;padding:9px 11px;border:1.5px solid var(--border);border-radius:9px;background:var(--surface);color:var(--text-primary);font-size:13px;transition:border-color .2s}
.modal input:focus,.modal select:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(29,158,117,.1)}
.modal-btns{display:flex;gap:8px;margin-top:16px;justify-content:flex-end}
/* Settings panel */
.settings-panel{background:var(--surface);border-radius:14px;padding:24px;box-shadow:0 2px 10px rgba(0,0,0,.06);max-width:600px}
.settings-panel h2{font-size:16px;font-weight:700;margin-bottom:4px}
.settings-panel p{font-size:12px;color:var(--text-muted);margin-bottom:20px}
.db-path-box{background:var(--surface-alt);border:1.5px solid var(--border);border-radius:10px;padding:12px 14px;font-size:12px;color:var(--text-secondary);font-family:monospace;word-break:break-all;margin-bottom:16px;min-height:42px}
.settings-actions{display:flex;gap:8px;flex-wrap:wrap}
/* Toast */
.toast{position:fixed;bottom:24px;right:24px;background:var(--brand);color:var(--surface);padding:10px 18px;border-radius:10px;font-size:13px;font-weight:500;box-shadow:0 4px 20px rgba(0,0,0,.2);z-index:99999;animation:slideUp .2s ease;pointer-events:none}
.toast.error{background:var(--danger)}
#modal-container{position:fixed;inset:0;z-index:9998;pointer-events:none}
#modal-container:not(:empty){pointer-events:all}
/* Loading */
.loading{display:flex;align-items:center;justify-content:center;padding:40px;color:var(--text-faint);font-size:13px;gap:8px}
.spinner{width:18px;height:18px;border:2px solid var(--border);border-top-color:var(--brand);border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* ── Admin action cards ── */
.admin-action-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;margin-bottom:16px}
.admin-action-card{background:var(--surface);border:1.5px solid var(--border);border-radius:14px;padding:18px 16px;cursor:pointer;transition:all .15s;box-shadow:0 1px 3px rgba(0,0,0,.04)}
.admin-action-card:hover{border-color:var(--brand);box-shadow:0 4px 14px rgba(29,158,117,.15);transform:translateY(-2px)}
.admin-action-card:active{transform:translateY(0) scale(.98)}
.aac-icon{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:10px}
.aac-title{font-size:14px;font-weight:700;margin-bottom:4px}
.aac-sub{font-size:11px;color:var(--text-muted);line-height:1.5}

/* ── Payment Checkout modal ── */
.payment-method-row{display:flex;gap:8px;margin:12px 0}
.payment-method-btn{flex:1;padding:12px;border-radius:10px;border:1.5px solid var(--border);background:var(--surface);cursor:pointer;font-size:13px;font-weight:600;color:var(--text-secondary);display:flex;flex-direction:column;align-items:center;gap:4px;transition:all .15s}
.payment-method-btn.active{border-color:var(--brand);background:var(--brand-bg);color:var(--brand-dark)}
.amount-input-wrap{position:relative}
.amount-input-wrap .currency-suffix{position:absolute;right:14px;top:50%;transform:translateY(-50%);color:var(--text-muted);font-weight:700;font-size:14px;pointer-events:none}
.amount-input{width:100%;padding:12px 12px 12px 28px;border:1.5px solid var(--border);border-radius:10px;font-size:20px;font-weight:700;color:var(--text-primary)}
.amount-input:focus{outline:none;border-color:var(--brand)}
.receipt-preview{background:var(--surface);font-family:'Courier New',monospace;font-size:12px;padding:16px;border:1px dashed #ccc;border-radius:8px;max-width:300px;margin:0 auto}

/* ── Owner Dashboard / PIN lock ── */
.pin-lock-wrap{display:flex;align-items:center;justify-content:center;min-height:400px}
.pin-box{background:var(--surface);border-radius:18px;box-shadow:0 4px 24px rgba(0,0,0,.08);border:1px solid var(--surface-alt);padding:36px 40px;text-align:center;max-width:340px}
.pin-icon{width:56px;height:56px;border-radius:14px;background:var(--brand-bg);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:26px;margin:0 auto 16px}
.pin-title{font-size:16px;font-weight:700;margin-bottom:4px}
.pin-sub{font-size:12px;color:var(--text-muted);margin-bottom:20px}
.pin-dots{display:flex;gap:10px;justify-content:center;margin-bottom:20px}
.pin-dot{width:14px;height:14px;border-radius:50%;border:2px solid #d1d5db;transition:all .15s}
.pin-dot.filled{background:var(--brand);border-color:var(--brand)}
.pin-dot.error{background:var(--danger);border-color:var(--danger);animation:shake .3s}
@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-4px)}75%{transform:translateX(4px)}}
.pin-keypad{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.pin-key{padding:14px;border-radius:10px;border:1.5px solid var(--border);background:var(--surface);font-size:18px;font-weight:600;cursor:pointer;transition:all .1s}
.pin-key:hover{background:var(--surface-alt)}
.pin-key:active{transform:scale(.95);background:var(--brand-bg)}
.pin-key.wide{grid-column:span 1}
.owner-kpi-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin-bottom:20px}
.owner-kpi{background:var(--surface);border-radius:14px;padding:16px;box-shadow:0 2px 10px rgba(0,0,0,.06);border-left:4px solid var(--brand)}
.owner-kpi.profit{border-left-color:#0891B2}
.owner-kpi.margin{border-left-color:#8b5cf6}
.date-range-row{display:flex;gap:8px;margin-bottom:18px;align-items:center;flex-wrap:wrap}
.date-range-row select,.date-range-row input{padding:7px 10px;border:1.5px solid var(--border);border-radius:8px;font-size:12px}
.owner-section{background:var(--surface);border-radius:14px;padding:18px;box-shadow:0 2px 10px rgba(0,0,0,.06);border:1px solid var(--surface-alt);margin-bottom:16px}
.owner-section-title{font-size:13px;font-weight:700;margin-bottom:12px;display:flex;align-items:center;gap:8px}
.staff-row{display:flex;align-items:center;gap:10px;padding:9px 0;border-bottom:1px solid var(--surface-alt)}
.staff-row:last-child{border-bottom:none}
.cash-recon-row{display:flex;gap:8px;align-items:flex-end;margin-bottom:14px;flex-wrap:wrap}
.cash-diff{font-weight:700}
.cash-diff.positive{color:var(--brand)}
.cash-diff.negative{color:var(--danger)}



/* ═══════════ EVOLUTION IDENTITY — theme layer ═══════════
   Built from the cap logo: isometric grid paper, graphite cockpit,
   Evolution-blue accents with a subtle skew, three-bar progress DNA,
   mint reserved for money-in. Selectors/structure unchanged so every
   renderer, test and the receipt template keep working. */

body{
  background-color:var(--aurora);
  background-image:
    linear-gradient(30deg,rgba(30,155,233,.045) 12%,transparent 12.5%,transparent 87%,rgba(30,155,233,.045) 87.5%),
    linear-gradient(150deg,rgba(30,155,233,.045) 12%,transparent 12.5%,transparent 87%,rgba(30,155,233,.045) 87.5%);
  background-size:36px 62px;
}
.titlebar{background:#fff;border-bottom:1px solid var(--border-light)}
.titlebar-title{color:var(--text-secondary)}
.titlebar-db{color:var(--text-faint)}
.titlebar-icon{background:#fff;border:1px solid var(--border);display:flex;align-items:center;justify-content:center}

/* Graphite cockpit sidebar — the logo's cap base */
.sidebar{background:linear-gradient(180deg,var(--graphite),var(--graphite-2));border-right:none}
.sidebar-logo{border-bottom:1px solid rgba(255,255,255,.08)}
.logo-icon{background:#fff;border:none;box-shadow:0 4px 12px rgba(0,0,0,.3);display:flex;align-items:center;justify-content:center}
.logo-title{color:#fff;letter-spacing:.3px}
.logo-sub{color:#7A868F;letter-spacing:1.6px}
.sidebar-kpis{border-bottom:1px solid rgba(255,255,255,.08)}
.skpi-label{color:#7A868F}
.skpi-val{color:#fff}
.nav-item{color:#9AA7B2;border-left:none;border-radius:10px;margin:1px 8px;padding:9px 12px;position:relative}
.nav-item:hover{background:rgba(255,255,255,.07);color:#fff}
.nav-item.active{background:linear-gradient(90deg,rgba(30,155,233,.28),rgba(30,155,233,.06));color:#8FD0FF;border-left:none;font-weight:600}
.nav-item.active::before{content:'';position:absolute;left:-8px;top:8px;bottom:8px;width:4px;border-radius:2px;background:var(--brand);transform:skewX(-14deg)}
.nav-badge{background:var(--coral)}
.sidebar-bottom{border-top:1px solid rgba(255,255,255,.08)}
.sidebar-date{color:#7A868F}
.lang-btn{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);color:#9AA7B2}
.lang-btn.active{background:var(--brand);border-color:var(--brand);color:#fff}
.btn-settings{border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.08);color:#9AA7B2}
.btn-settings:hover{background:rgba(255,255,255,.16);color:#fff}

/* Paper workspace */
.topbar{background:#fff;border-bottom:1px solid var(--border-light)}
.search-box{background:#fff;border:1.5px solid var(--border);border-radius:10px;box-shadow:var(--sh-1)}

/* Solid surfaces, skewed blue signature tab on KPIs */
.card,.owner-section,.kpi,.empty{background:#fff;border:1px solid var(--border);box-shadow:var(--sh-1)}
.card{border-radius:14px}
.card:hover{box-shadow:var(--sh-2)}
.owner-section{border-radius:14px}
.kpi{border-radius:14px;border-left:none;position:relative;overflow:hidden}
.kpi::before{content:'';position:absolute;top:0;left:14px;width:26px;height:5px;border-radius:0 0 3px 3px;background:var(--brand);transform:skewX(-18deg)}
.kpi-val{color:var(--text-primary);font-variant-numeric:tabular-nums;letter-spacing:-.4px}
.empty{border:1.5px dashed var(--border)}

/* Buttons — deep blue for contrast, press feedback */
.btn:active{transform:scale(.97)}
.btn-primary{background:#178BD6;box-shadow:0 4px 14px rgba(30,155,233,.3)}
.btn-primary:hover{background:var(--brand-dark)}
.btn-secondary{background:#fff;border:1.5px solid var(--border)}
.btn-secondary:hover{background:var(--surface-alt)}

/* Modals */
.modal-overlay{background:rgba(26,34,44,.5);backdrop-filter:blur(4px)}
.modal{border:1px solid var(--border);border-radius:16px;box-shadow:0 24px 70px rgba(15,40,70,.35)}

/* Money aligns digit-for-digit; mint stays the money color via tokens */
.money,.amount,.kpi-val,.skpi-val{font-variant-numeric:tabular-nums}

/* Visible keyboard focus */
button:focus-visible,.btn:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,.nav-item:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

/* Class tabs in the Students tab */
.group-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.group-tab{
  display:inline-flex;align-items:center;gap:7px;
  background:#fff;border:1.5px solid var(--border);border-radius:10px;
  padding:8px 13px;font-size:12.5px;font-weight:700;color:var(--text-secondary);
  cursor:pointer;box-shadow:var(--sh-1);transition:all .15s;position:relative;
}
.group-tab:hover{border-color:#B9C6D3;color:var(--text-primary)}
.group-tab.active{background:#178BD6;border-color:#178BD6;color:#fff;box-shadow:0 6px 16px rgba(30,155,233,.3)}
.group-tab .gt-time{font-size:10.5px;font-weight:800;opacity:.75}
.group-tab .gt-count{font-size:10.5px;font-weight:800;background:rgba(42,49,56,.08);border-radius:99px;padding:1px 7px}
.group-tab.active .gt-count{background:rgba(255,255,255,.25)}
.group-tab .gt-unpaid{font-size:10.5px;font-weight:800;background:var(--coral);color:#fff;border-radius:99px;padding:1px 7px}
.group-tab:active{transform:scale(.97)}

/* Teacher level above the class tabs: graphite when active */
.teacher-tabs{margin-bottom:10px}
.group-tab.teacher-tab.active{background:linear-gradient(135deg,#33383E,#232B33);border-color:#232B33;color:#fff;box-shadow:0 6px 16px rgba(35,43,51,.3)}
.timetable-daily{max-width:1400px}
.timetable-daily .timetable-row{cursor:pointer}

/* Comfortable filter selects */
.filter-row{gap:10px;align-items:center}
.filter-row select{
  appearance:none;-webkit-appearance:none;
  background-color:#fff;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%235B6873' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'><path d='M6 9l6 6 6-6'/></svg>");
  background-repeat:no-repeat;background-position:right 13px center;
  border:1.5px solid var(--border);border-radius:10px;
  padding:9px 36px 9px 14px;min-width:170px;max-width:100%;
  font-size:13px;font-weight:600;color:var(--text-primary);
  box-shadow:var(--sh-1);cursor:pointer;transition:border-color .15s,box-shadow .15s;
}
.filter-row select:hover{box-shadow:var(--sh-2);border-color:#B9C6D3}
.filter-row select:focus{outline:none;border-color:var(--brand)}
.filter-row input{
  background:#fff;border:1.5px solid var(--border);border-radius:10px;
  padding:9px 14px;font-size:13px;font-weight:600;color:var(--text-primary);
  box-shadow:var(--sh-1);outline:none;transition:border-color .15s;
}
.filter-row input::placeholder{color:var(--text-faint);font-weight:500}
.filter-row input:focus{border-color:var(--brand)}

/* Soft scrollbars */
::-webkit-scrollbar{width:9px;height:9px}
::-webkit-scrollbar-thumb{background:rgba(90,105,125,.3);border-radius:99px;border:2px solid transparent;background-clip:content-box}
::-webkit-scrollbar-thumb:hover{background:rgba(90,105,125,.5);border:2px solid transparent;background-clip:content-box}
::-webkit-scrollbar-track{background:transparent}

/* ── Evo CRM business features (17-business.js) ─────────────────────────── */
.biz-tabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:12px}
.biz-chip{border:1px solid var(--border);background:var(--surface);border-radius:99px;padding:5px 12px;font-size:12px;cursor:pointer;color:var(--text-secondary)}
.biz-chip.on{background:var(--brand);border-color:var(--brand-dark);color:#fff}
.biz-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:10px}
.biz-kpi{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:10px 12px}
.biz-kpi .k{font-size:11px;color:var(--text-muted)}.biz-kpi .v{font-size:18px;font-weight:800;margin-top:2px}
.biz-table{width:100%;border-collapse:collapse;font-size:12px}
.biz-table th{text-align:left;font-size:11px;color:var(--text-muted);font-weight:600;padding:6px 8px;border-bottom:1px solid var(--border)}
.biz-table td{padding:6px 8px;border-bottom:1px solid var(--border-light);vertical-align:middle}
.biz-table tr.total td{font-weight:800;background:var(--surface-alt)}
.biz-row-in{animation:bizRowIn .45s ease both}
@keyframes bizRowIn{from{opacity:0;transform:translateX(-18px)}to{opacity:1;transform:none}}
.biz-ok{color:#0C8A5F;font-weight:600}.biz-skip{color:var(--text-faint)}.biz-warn{color:var(--warning);font-weight:600}
/* Branches → Total diagram with moving lines */
.biz-flowwrap{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:12px;margin-bottom:14px;overflow:hidden}
.biz-flowwrap svg{width:100%;height:auto;display:block}
.biz-flow{fill:none;stroke:var(--brand);stroke-width:2.2;stroke-linecap:round;stroke-dasharray:6 8;animation:bizDash 1.1s linear infinite;opacity:.85}
@keyframes bizDash{to{stroke-dashoffset:-28}}
.biz-node rect{fill:var(--brand-bg);stroke:var(--brand);stroke-width:1.4}
.biz-node.total rect{fill:var(--brand);stroke:var(--brand-dark)}
.biz-node text{font:600 12px system-ui,Segoe UI,sans-serif;fill:var(--text-primary)}
.biz-node.total text{fill:#fff}
.biz-node .sub{font-weight:500;font-size:11px;fill:var(--text-secondary)}
.biz-node.total .sub{fill:#E8F4FD}
/* Payroll hour bars */
.biz-hbar{height:12px;background:var(--surface-alt);border-radius:99px;overflow:hidden;position:relative}
.biz-hbar>i{display:block;height:100%;width:0;border-radius:99px;background:linear-gradient(90deg,var(--brand),#58C3F7);transition:width 1.1s cubic-bezier(.2,.8,.2,1)}
.biz-pcard{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:12px;margin-bottom:10px}
/* Incoming call pop-up */
.biz-callpop{position:fixed;right:18px;bottom:18px;z-index:9999;width:310px;background:var(--surface);border:1px solid var(--border);border-left:5px solid #0C8A5F;border-radius:14px;box-shadow:0 12px 32px rgba(20,40,60,.22);padding:14px;animation:bizPop .35s ease both}
@keyframes bizPop{from{opacity:0;transform:translateY(20px) scale(.97)}to{opacity:1;transform:none}}
.biz-callpop .ring{display:inline-block;animation:bizRing 1s ease-in-out infinite}
@keyframes bizRing{0%,100%{transform:rotate(0)}20%{transform:rotate(-16deg)}40%{transform:rotate(14deg)}60%{transform:rotate(-8deg)}}
.biz-phone-btn{border:none;background:var(--brand-bg);color:var(--brand-dark);border-radius:6px;padding:1px 6px;margin-left:3px;cursor:pointer;font-size:11px}
.biz-phone-btn:hover{background:var(--brand);color:#fff}
.biz-setup input{width:100%}
.biz-secret{font-family:Consolas,monospace;font-size:11px;background:var(--surface-alt);padding:4px 6px;border-radius:6px;word-break:break-all;user-select:all}
@media (prefers-reduced-motion:reduce){.biz-flow,.biz-callpop .ring{animation:none}.biz-row-in{animation:none}.biz-hbar>i{transition:none}}