:root {
  --primary:       #522c7b;
  --primary-dark:  #3d1f5c;
  --primary-light: #ede8f5;
  --success:       #10B981;
  --success-light: #D1FAE5;
  --danger:        #EF4444;
  --danger-light:  #FEE2E2;
  --warning:       #F59E0B;
  --warning-light: #FEF3C7;
  --info:          #3B82F6;
  --info-light:    #DBEAFE;
  --gray-50:  #F9FAFB; --gray-100: #F3F4F6; --gray-200: #E5E7EB;
  --gray-300: #D1D5DB; --gray-400: #9CA3AF; --gray-500: #6B7280;
  --gray-700: #374151; --gray-900: #111827;
  --sidebar: 240px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;background:var(--gray-50);color:var(--gray-900);font-size:14px;line-height:1.5}

/* Layout */
.layout{display:flex;min-height:100vh}
.sidebar{width:var(--sidebar);background:var(--primary-dark);display:flex;flex-direction:column;position:fixed;top:0;left:0;height:100vh;z-index:100;overflow-y:auto}
.sidebar-logo{padding:24px 20px 20px;border-bottom:1px solid rgba(255,255,255,.1)}
.logo-text{color:#fff;font-size:1.1rem;letter-spacing:.02em}
.logo-text strong{font-weight:800}
.sidebar-nav{flex:1;padding:16px 12px;display:flex;flex-direction:column;gap:2px}
.nav-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:8px;color:rgba(255,255,255,.75);text-decoration:none;font-size:.875rem;transition:background .15s,color .15s}
.nav-item svg{width:18px;height:18px;fill:currentColor;flex-shrink:0}
.nav-item:hover,.nav-item.active{background:rgba(255,255,255,.15);color:#fff}
.nav-item.active{font-weight:600}
.nav-divider{height:1px;background:rgba(255,255,255,.1);margin:8px 0}
.sidebar-footer{padding:16px 12px;border-top:1px solid rgba(255,255,255,.1);display:flex;align-items:center;gap:10px}
.user-info{display:flex;align-items:center;gap:10px;flex:1;min-width:0}
.user-avatar{width:34px;height:34px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.85rem;flex-shrink:0}
.user-name{display:block;color:#fff;font-size:.8rem;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.user-role{display:block;color:rgba(255,255,255,.55);font-size:.72rem}
.btn-logout{color:rgba(255,255,255,.55);display:flex;align-items:center;transition:color .15s;flex-shrink:0;background:none;border:none;cursor:pointer}
.btn-logout:hover{color:#fff}
.btn-logout svg{width:18px;height:18px;fill:currentColor}
.main-content{margin-left:var(--sidebar);flex:1;padding:32px;min-height:100vh}

/* Page header */
.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;flex-wrap:wrap;gap:12px}
.page-title{font-size:1.35rem;font-weight:700}
.page-subtitle{font-size:.85rem;color:var(--gray-500);margin-top:2px}

/* Cards */
.card{background:#fff;border-radius:12px;padding:24px;box-shadow:0 1px 3px rgba(0,0,0,.08);margin-bottom:20px}
.card-title{font-size:1rem;font-weight:600;color:var(--gray-700);margin-bottom:16px}

/* Stats */
.stats-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:16px;margin-bottom:24px}
.stat-card{background:#fff;border-radius:12px;padding:20px;box-shadow:0 1px 3px rgba(0,0,0,.08);border-left:4px solid var(--primary)}
.stat-card.success{border-left-color:var(--success)}.stat-card.warning{border-left-color:var(--warning)}.stat-card.info{border-left-color:var(--info)}
.stat-value{font-size:1.75rem;font-weight:700}.stat-label{font-size:.78rem;color:var(--gray-500);margin-top:4px}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:8px;border:none;cursor:pointer;font-size:.875rem;font-weight:500;text-decoration:none;transition:opacity .15s;white-space:nowrap}
.btn:hover{opacity:.88}.btn svg{width:16px;height:16px;fill:currentColor}
.btn-primary{background:var(--primary);color:#fff}.btn-secondary{background:var(--gray-200);color:var(--gray-700)}
.btn-success{background:var(--success);color:#fff}.btn-danger{background:var(--danger);color:#fff}
.btn-outline{background:transparent;color:var(--primary);border:1.5px solid var(--primary)}
.btn-sm{padding:5px 10px;font-size:.8rem}

/* Forms */
.form-group{margin-bottom:16px}.form-label{display:block;font-size:.83rem;font-weight:600;color:var(--gray-700);margin-bottom:6px}
.form-hint{font-size:.75rem;color:var(--gray-400);margin-top:4px}
.form-control{width:100%;padding:9px 12px;border:1.5px solid var(--gray-200);border-radius:8px;font-size:.875rem;background:#fff;color:var(--gray-900);transition:border-color .15s;outline:none}
.form-control:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-light)}
textarea.form-control{resize:vertical;min-height:80px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-grid-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px}

/* Table */
.table-wrap{overflow-x:auto}
table.data-table{width:100%;border-collapse:collapse;font-size:.85rem}
.data-table th{text-align:left;padding:10px 14px;background:var(--gray-50);color:var(--gray-500);font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.04em;border-bottom:1px solid var(--gray-200)}
.data-table td{padding:12px 14px;border-bottom:1px solid var(--gray-100);color:var(--gray-700);vertical-align:middle}
.data-table tr:last-child td{border-bottom:none}
.data-table tbody tr:hover td{background:var(--gray-50)}

/* Badges */
.badge{display:inline-block;padding:3px 10px;border-radius:20px;font-size:.72rem;font-weight:600;white-space:nowrap}
.badge-warning{background:var(--warning-light);color:#92400e}.badge-info{background:var(--info-light);color:#1e40af}
.badge-success{background:var(--success-light);color:#065f46}.badge-secondary{background:var(--gray-100);color:var(--gray-500)}
.badge-purple{background:var(--primary-light);color:var(--primary-dark)}

/* Filter bar */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;align-items:flex-end;margin-bottom:20px;padding:16px;background:#fff;border-radius:12px;box-shadow:0 1px 3px rgba(0,0,0,.08)}
.filter-bar .form-group{margin-bottom:0}.filter-bar .form-control{min-width:140px}

/* Tabs */
.tabs{display:flex;gap:0;border-bottom:2px solid var(--gray-200);margin-bottom:24px}
.tab-btn{padding:10px 20px;border:none;background:none;cursor:pointer;font-size:.875rem;font-weight:500;color:var(--gray-500);border-bottom:2px solid transparent;margin-bottom:-2px;transition:color .15s,border-color .15s}
.tab-btn.active{color:var(--primary);border-bottom-color:var(--primary)}
.tab-panel{display:none}.tab-panel.active{display:block}

/* Alerts */
.alert{padding:12px 16px;border-radius:8px;font-size:.875rem;margin-bottom:16px}
.alert-success{background:var(--success-light);color:#065f46}.alert-error{background:var(--danger-light);color:#991b1b}

/* Login */
.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--primary-dark) 0%,var(--primary) 100%)}
.login-box{background:#fff;border-radius:16px;width:100%;max-width:400px;box-shadow:0 4px 24px rgba(0,0,0,.2);overflow:hidden}
.login-logo{text-align:center;padding:32px 40px 24px;background:var(--primary-dark)}
.login-logo img{max-width:160px;height:auto;display:block;margin:0 auto 8px}
.login-logo p{font-size:.8rem;color:rgba(255,255,255,.75);margin-top:4px}
.login-form{padding:32px 40px 40px}

/* Calendar */
.calendar-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:4px}
.cal-day-header{text-align:center;font-size:.72rem;font-weight:700;color:var(--gray-400);padding:6px 0;text-transform:uppercase}
.cal-day{aspect-ratio:1;border-radius:6px;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:.78rem;font-weight:500;border:1.5px solid transparent}
.cal-day.empty{background:transparent}.cal-day.has-reg{background:var(--success-light);color:#065f46}
.cal-day.no-reg{background:var(--danger-light);color:#991b1b}.cal-day.today{border-color:var(--primary)}
.cal-count{font-size:.65rem;color:var(--gray-500)}

/* Misc */
.empty-state{text-align:center;padding:48px 24px;color:var(--gray-400)}
.empty-state svg{width:48px;height:48px;fill:var(--gray-300);margin-bottom:12px}
.flex-gap{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.mt-16{margin-top:16px}.divider{border:none;border-top:1px solid var(--gray-200);margin:20px 0}
.hidden{display:none!important}