:root{--primary:#2563eb;--primary-hover:#1d4ed8;--primary-light:#eff6ff;--secondary:#64748b;--accent:#f59e0b;--bg-main:#f8fafc;--bg-card:#fff;--text-main:#0f172a;--text-muted:#475569;--text-light:#94a3b8;--border:#e2e8f0;--error:#ef4444;--success:#22c55e;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0000001a, 0 2px 4px -2px #0000001a;--shadow-lg:0 10px 15px -3px #0000001a, 0 4px 6px -4px #0000001a;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;background-color:var(--bg-main);color:var(--text-main);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-weight:400;line-height:1.5}*{box-sizing:border-box;margin:0;padding:0}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh}h1,h2,h3{color:var(--text-main);font-weight:700}.login-bg{background:linear-gradient(135deg,#eff6ff 0%,#dbeafe 100%);justify-content:center;align-items:center;min-height:100vh;padding:20px;display:flex}.login-card{background:var(--bg-card);border-radius:var(--radius-lg);width:100%;max-width:420px;box-shadow:var(--shadow-lg);padding:40px}.login-brand{text-align:center;margin-bottom:32px}.login-icon{margin-bottom:12px;font-size:2.5rem}.login-brand h1{margin-bottom:4px;font-size:1.75rem}.login-brand p{color:var(--text-muted);font-size:.95rem}.login-form{flex-direction:column;gap:20px;display:flex}.field-group{flex-direction:column;gap:8px;display:flex}.field-group label{color:var(--text-muted);font-size:.875rem;font-weight:600}.field-group input{border:1px solid var(--border);border-radius:var(--radius-md);outline:none;padding:12px 16px;font-size:1rem;transition:all .2s}.field-group input:focus{border-color:var(--primary);box-shadow:0 0 0 3px #2563eb1a}.login-error{color:var(--error);border-radius:var(--radius-md);text-align:center;background:#fef2f2;border:1px solid #fee2e2;padding:12px;font-size:.875rem}.btn-login{background:var(--primary);color:#fff;border-radius:var(--radius-md);cursor:pointer;border:none;justify-content:center;align-items:center;gap:8px;padding:14px;font-size:1rem;font-weight:600;transition:all .2s;display:flex}.btn-login:hover{background:var(--primary-hover);transform:translateY(-1px)}.btn-login:disabled{opacity:.7;cursor:not-allowed}.login-footer{text-align:center;color:var(--text-light);margin-top:32px;font-size:.8125rem}.app-layout{min-height:100vh;display:flex}.main-content{background:var(--bg-main);flex:1;height:100vh;padding:0;overflow-y:auto}.sidebar{color:#f8fafc;background:#0f172a;border-right:1px solid #1e293b;flex-direction:column;width:260px;transition:all .3s;display:flex;position:relative}.sidebar.collapsed{width:80px}.sidebar-brand{border-bottom:1px solid #1e293b;align-items:center;gap:12px;margin-bottom:16px;padding:24px;display:flex}.brand-icon{font-size:1.5rem}.brand-name{white-space:nowrap;font-size:1.1rem;font-weight:800}.sidebar-nav{flex-direction:column;flex:1;gap:4px;padding:0 12px;display:flex}.nav-item{color:#94a3b8;border-radius:var(--radius-md);align-items:center;gap:12px;padding:12px 16px;font-weight:500;text-decoration:none;transition:all .2s;display:flex}.nav-item:hover{color:#f1f5f9;background:#1e293b}.nav-item.active{background:var(--primary);color:#fff;box-shadow:0 4px 12px #2563eb33}.nav-icon{text-align:center;min-width:24px;font-size:1.25rem}.nav-label{white-space:nowrap}.sidebar-toggle{background:var(--primary);color:#fff;cursor:pointer;z-index:10;border:none;border-radius:50%;justify-content:center;align-items:center;width:24px;height:24px;font-size:12px;display:flex;position:absolute;top:68px;right:-12px}.sidebar-logout{color:#94a3b8;cursor:pointer;background:0 0;border:none;border-top:1px solid #1e293b;align-items:center;gap:12px;width:100%;padding:24px;font-weight:500;transition:all .2s;display:flex}.sidebar-logout:hover{color:#fecaca;background:#1e293b}.topbar{border-bottom:1px solid var(--border);z-index:5;background:#fff;justify-content:space-between;align-items:center;padding:24px 32px;display:flex;position:sticky;top:0}.topbar-title{color:var(--text-main);margin-bottom:2px;font-size:1.5rem;font-weight:800}.topbar-subtitle{color:var(--text-light);font-size:.875rem}.topbar-right{align-items:center;gap:24px;display:flex}.topbar-date{color:var(--text-muted);font-size:.875rem;font-weight:500}.admin-badge{background:var(--bg-main);border-radius:var(--radius-lg);color:var(--text-main);border:1px solid var(--border);align-items:center;gap:8px;padding:8px 16px;font-size:.875rem;font-weight:600;display:flex}.admin-dot{background:var(--success);border-radius:50%;width:8px;height:8px}.page-content{max-width:1200px;padding:32px}.section-title{color:var(--text-light);text-transform:uppercase;letter-spacing:.05em;margin:40px 0 20px;font-size:.875rem;font-weight:700}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;margin-bottom:32px;display:grid}.stat-card{border-radius:var(--radius-md);box-shadow:var(--shadow-sm);border-left:4px solid var(--primary);background:#fff;align-items:center;gap:20px;padding:24px;display:flex}.stat-icon{border-radius:12px;justify-content:center;align-items:center;width:48px;height:48px;font-size:1.5rem;display:flex}.stat-value{color:var(--text-main);margin-bottom:2px;font-size:1.5rem;font-weight:800}.stat-label{color:var(--text-muted);font-size:.875rem;font-weight:500}.stat-sub{color:var(--text-light);margin-top:4px;font-size:.75rem}.shift-cards{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px;display:grid}.shift-card{border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);border:1px solid var(--border);background:#fff;padding:24px}.shift-header{align-items:center;gap:12px;margin-bottom:20px;display:flex}.shift-emoji{font-size:1.5rem}.shift-name{color:var(--text-main);font-weight:700}.shift-stats{gap:24px;margin-bottom:20px;display:flex}.shift-stats div{color:var(--text-muted);font-size:.9rem}.shift-stats strong{color:var(--text-main);margin-bottom:2px;font-size:1.1rem;display:block}.progress-bar-bg{background:#f1f5f9;border-radius:5px;height:10px;margin-bottom:8px;overflow:hidden}.progress-bar-fill{background:var(--primary);border-radius:5px;height:100%;transition:width .5s ease-out}.progress-label{color:var(--text-light);text-align:right;font-size:.75rem;font-weight:600}.payment-summary{border-radius:var(--radius-md);box-shadow:var(--shadow-sm);border:1px solid var(--border);background:#fff;padding:0;display:flex;overflow:hidden}.ps-item{text-align:center;flex:1;padding:24px;transition:all .2s}.ps-count{margin-bottom:4px;font-size:1.75rem;font-weight:800;display:block}.ps-label{text-transform:uppercase;letter-spacing:.05em;color:var(--text-light);font-size:.8125rem;font-weight:600}.ps-item.paid .ps-count{color:var(--success)}.ps-item.unpaid .ps-count{color:var(--error)}.ps-item.total .ps-count{color:var(--primary)}.ps-divider{background:var(--border);width:1px}.student-page{background:var(--bg-main);min-height:100vh}.student-nav{border-bottom:1px solid var(--border);background:#fff;justify-content:space-between;padding:1rem 2rem;display:flex}.student-profile-card{border-radius:var(--radius-md);box-shadow:var(--shadow-md);background:#fff;margin-bottom:2rem;padding:2rem}.btn-primary,.btn-outline,.btn-ghost,.btn-danger-sm,.btn-success-sm,.btn-outline-sm{border-radius:var(--radius-sm);cursor:pointer;border:none;justify-content:center;align-items:center;gap:8px;font-family:inherit;font-weight:600;transition:all .2s;display:inline-flex}.btn-primary{background:var(--primary);color:#fff;padding:10px 20px;font-size:.95rem}.btn-primary:hover:not(:disabled){background:var(--primary-hover);transform:translateY(-1px)}.btn-primary:disabled{opacity:.7;cursor:not-allowed}.btn-outline{border:1px solid var(--border);color:var(--text-main);background:0 0;padding:10px 20px}.btn-outline:hover{border-color:var(--primary);color:var(--primary)}.btn-ghost{color:var(--text-muted);background:0 0;padding:10px 20px}.btn-ghost:hover{color:var(--text-main);background:#f1f5f9}.btn-danger-sm{color:#dc2626;background:#fee2e2;border:1px solid #fecaca;padding:6px 12px;font-size:.75rem}.btn-danger-sm:hover{background:#fca5a5}.btn-success-sm{color:#16a34a;background:#dcfce7;border:1px solid #bbf7d0;padding:6px 12px;font-size:.75rem}.btn-success-sm:hover{background:#86efac}.btn-outline-sm{border:1px solid var(--border);color:var(--text-muted);background:#fff;padding:6px 12px;font-size:.8rem}.btn-outline-sm:hover{border-color:var(--primary);color:var(--primary);box-shadow:var(--shadow-sm)}.toolbar,.seats-toolbar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-bottom:24px;display:flex}.search-input,.month-picker,select{border:1px solid var(--border);border-radius:var(--radius-md);background:#fff;outline:none;min-width:250px;padding:10px 16px;font-family:inherit;font-size:.95rem;transition:all .2s}.search-input:focus,.month-picker:focus,select:focus{border-color:var(--primary);box-shadow:0 0 0 3px #2563eb1a}.filter-tabs,.shift-tabs{border-radius:var(--radius-md);background:#e2e8f0;gap:4px;padding:4px;display:flex}.filter-tab,.shift-tab{border-radius:var(--radius-sm);color:var(--text-muted);cursor:pointer;background:0 0;border:none;padding:8px 16px;font-size:.875rem;font-weight:600;transition:all .2s}.filter-tab.active,.shift-tab.active{color:var(--primary);box-shadow:var(--shadow-sm);background:#fff}.table-wrap{border-radius:var(--radius-md);box-shadow:var(--shadow-sm);border:1px solid var(--border);background:#fff;overflow-x:auto}.data-table{border-collapse:collapse;text-align:left;width:100%}.data-table th{text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);border-bottom:1px solid var(--border);background:#f8fafc;padding:16px 24px;font-size:.75rem;font-weight:700}.data-table td{vertical-align:middle;color:var(--text-main);border-bottom:1px solid #f1f5f9;padding:16px 24px;font-size:.9rem}.data-table tr:hover td{background:#f8fafc}.data-table tr:last-child td{border-bottom:none}.status-badge{text-transform:capitalize;border-radius:20px;padding:4px 12px;font-size:.75rem;font-weight:700;display:inline-block}.status-badge.active{color:#166534;background:#dcfce7}.status-badge.inactive{color:#475569;background:#f1f5f9}.status-pill{letter-spacing:.05em;border-radius:20px;margin:0;padding:4px 12px;font-size:.75rem;font-weight:700;display:inline-block}.seat-badge{color:#1e3a8a;background:#eff6ff;border-radius:6px;margin-right:8px;padding:4px 10px;font-size:.8rem;font-weight:700}.shift-label{color:var(--text-muted);font-size:.8rem;font-weight:500}.modal-overlay{z-index:50;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#0f172a99;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.modal{border-radius:var(--radius-lg);width:100%;max-width:600px;box-shadow:var(--shadow-lg);background:#fff;animation:.3s cubic-bezier(.16,1,.3,1) modalIn;overflow:hidden}@keyframes modalIn{0%{opacity:0;transform:translateY(20px)scale(.95)}to{opacity:1;transform:translateY(0)scale(1)}}.modal-header{border-bottom:1px solid var(--border);background:#f8fafc;justify-content:space-between;align-items:center;padding:24px 32px;display:flex}.modal-header h3{font-size:1.25rem}.modal-close{cursor:pointer;color:var(--text-muted);background:0 0;border:none;font-size:1.2rem;transition:color .2s}.modal-close:hover{color:var(--error)}.modal-form{flex-direction:column;gap:24px;padding:32px;display:flex}.form-row{gap:24px;display:flex}.form-row>*{flex:1}.modal-footer{border-top:1px solid #f1f5f9;justify-content:flex-end;gap:12px;padding-top:24px;display:flex}.seats-stats{flex-wrap:wrap;gap:12px;margin-bottom:24px;display:flex}.badge{border:1px solid;border-radius:20px;padding:6px 16px;font-size:.85rem;font-weight:600}.badge.occupied{color:#991b1b;background:#fee2e2;border-color:#fecaca}.badge.available{color:#166534;background:#dcfce7;border-color:#bbf7d0}.badge.total{color:#1e40af;background:#eff6ff;border-color:#bfdbfe}.seat-grid{grid-template-columns:repeat(auto-fill,minmax(100px,1fr));gap:16px;margin-bottom:32px;display:grid}.seat-box{aspect-ratio:1;border-radius:var(--radius-md);cursor:pointer;border:2px solid;flex-direction:column;justify-content:center;align-items:center;transition:transform .2s;display:flex;position:relative;overflow:hidden}.seat-box:hover{box-shadow:var(--shadow-md);transform:translateY(-4px)}.seat-number{color:#0f172a;opacity:.8;margin-bottom:4px;font-size:1.75rem;font-weight:800}.seat-student{color:#1e293b;white-space:nowrap;text-overflow:ellipsis;background:#fffc;border-radius:12px;max-width:90%;padding:2px 8px;font-size:.75rem;font-weight:600;overflow:hidden}.seat-legend{justify-content:center;gap:24px;margin-top:32px;display:flex}.seat-legend span{color:var(--text-muted);align-items:center;gap:8px;font-size:.875rem;font-weight:600;display:flex}.legend-dot{border-radius:50%;width:12px;height:12px;display:inline-block}.pay-stats-row,.att-stats-row{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;margin-bottom:32px;display:grid}.pay-stat,.att-stat{border-radius:var(--radius-md);border:1px solid var(--border);box-shadow:var(--shadow-sm);background:#fff;border-left-width:4px;padding:24px}.pay-stat.green{border-left-color:var(--success)}.pay-stat.red{border-left-color:var(--error)}.pay-stat.blue{border-left-color:var(--primary)}.pay-stat-val,.att-stat-val{color:var(--text-main);margin-bottom:4px;font-size:1.75rem;font-weight:800}.pay-stat-label,.att-stat-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;font-size:.875rem;font-weight:600}.empty-state{text-align:center;color:var(--text-light);padding:48px;font-style:italic}.empty-state-large{border-radius:var(--radius-lg);border:1px dashed var(--border);background:#fff;flex-direction:column;justify-content:center;align-items:center;margin-top:20px;padding:80px 20px;display:flex}.empty-emoji{opacity:.5;margin-bottom:16px;font-size:3rem}.empty-text{color:var(--text-muted);font-size:1.1rem;font-weight:500}