@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap";
:root{--bg-primary:#f5f7fa;--bg-secondary:#fff;--bg-card:#fff;--bg-card-hover:#f8fafc;--bg-sidebar:#fff;--bg-input:#f1f5f9;--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#94a3b8;--accent:#6366f1;--accent-hover:#4f46e5;--accent-muted:#6366f11a;--success:#10b981;--success-muted:#10b9811a;--warning:#f59e0b;--warning-muted:#f59e0b1a;--danger:#ef4444;--danger-muted:#ef444414;--info:#3b82f6;--info-muted:#3b82f61a;--border:#e2e8f0;--border-hover:#cbd5e1;--sidebar-width:260px;--header-height:64px;--radius-sm:8px;--radius:12px;--radius-lg:16px;--radius-xl:20px;--shadow-sm:0 1px 2px #0000000a,0 1px 3px #0000000f;--shadow:0 2px 8px #0000000f,0 4px 16px #0000000a;--shadow-lg:0 8px 24px #00000014,0 16px 48px #0000000a;--shadow-glow:0 0 0 3px #6366f126;--transition:.2s cubic-bezier(.4,0,.2,1)}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;color:var(--text-primary);background:var(--bg-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;font-size:14px;overflow-x:hidden}a{color:inherit;text-decoration:none}button{cursor:pointer;color:inherit;background:0 0;border:none;font-family:inherit}input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);transition:border var(--transition),box-shadow var(--transition);outline:none;padding:9px 14px}input:focus,select:focus,textarea:focus{border-color:var(--accent);box-shadow:var(--shadow-glow);background:#fff}.admin-layout{min-width:0;height:100vh;display:flex;overflow:hidden}.sidebar{width:var(--sidebar-width);background:var(--bg-sidebar);border-right:1px solid var(--border);z-index:100;flex-direction:column;flex-shrink:0;display:flex}.sidebar-brand{border-bottom:1px solid var(--border);padding:16px}.sidebar-logo{border-bottom:1px solid var(--border);align-items:center;gap:12px;padding:20px 24px;display:flex}.sidebar-logo .logo-icon{border-radius:var(--radius-sm);color:#fff;background:linear-gradient(135deg,#6366f1,#8b5cf6);justify-content:center;align-items:center;width:36px;height:36px;font-size:18px;font-weight:800;display:flex}.sidebar-logo h1{color:var(--text-primary);letter-spacing:-.02em;font-size:18px;font-weight:700}.sidebar-nav{flex:1;padding:16px 12px;overflow-y:auto}.nav-section{margin-bottom:24px}.nav-section-title{text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);margin-bottom:8px;padding:0 12px;font-size:11px;font-weight:600}.nav-item{border-radius:var(--radius-sm);color:var(--text-secondary);transition:all var(--transition);align-items:center;gap:12px;margin-bottom:2px;padding:10px 12px;font-size:13.5px;font-weight:500;display:flex;position:relative}.nav-item:hover{background:var(--bg-primary);color:var(--text-primary)}.nav-item.active{background:var(--accent-muted);color:var(--accent);font-weight:600}.nav-item.active:before{content:"";background:var(--accent);border-radius:0 3px 3px 0;width:3px;height:20px;position:absolute;top:50%;left:0;transform:translateY(-50%)}.nav-item svg{flex-shrink:0;width:18px;height:18px}.nav-badge{background:var(--accent);color:#fff;border-radius:10px;margin-left:auto;padding:2px 8px;font-size:11px;font-weight:600}.sidebar-footer{border-top:1px solid var(--border);flex-direction:column;gap:12px;padding:16px;display:flex}.user-info{align-items:center;gap:12px;display:flex}.user-avatar{background:var(--accent-muted);width:36px;height:36px;color:var(--accent);border-radius:50%;justify-content:center;align-items:center;font-size:14px;font-weight:600;display:flex}.user-details{flex:1;overflow:hidden}.user-name{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;font-size:13px;font-weight:600;overflow:hidden}.user-role{color:var(--text-muted);text-transform:capitalize;font-size:11px}.logout-btn{border-radius:var(--radius-sm);width:100%;color:var(--text-secondary);transition:all var(--transition);justify-content:center;align-items:center;gap:8px;padding:8px;font-size:13px;font-weight:500;display:flex}.logout-btn:hover{background:var(--danger-muted);color:var(--danger)}.main-content{flex-direction:column;flex:1;min-width:0;display:flex;overflow:hidden}.header{height:var(--header-height);background:var(--bg-secondary);border-bottom:1px solid var(--border);flex-shrink:0;justify-content:space-between;align-items:center;padding:0 28px;display:flex}.header-left{align-items:center;gap:16px;min-width:0;display:flex}.header-left h2{letter-spacing:-.01em;min-width:0;font-size:17px;font-weight:600}.header-right{align-items:center;gap:12px;min-width:0;display:flex}.header-search{min-width:0;position:relative}.header-search input{background:var(--bg-primary);border-radius:var(--radius);border:1px solid var(--border);width:260px;padding:8px 12px 8px 36px;font-size:13px}.header-search svg{width:16px;height:16px;color:var(--text-muted);position:absolute;top:50%;left:10px;transform:translateY(-50%)}.icon-btn{border-radius:var(--radius-sm);width:36px;height:36px;transition:all var(--transition);justify-content:center;align-items:center;display:flex;position:relative}.icon-btn:hover{background:var(--bg-primary)}.icon-btn svg{width:18px;height:18px;color:var(--text-secondary)}.icon-btn .badge-dot{background:var(--danger);border:2px solid var(--bg-secondary);border-radius:50%;width:8px;height:8px;position:absolute;top:6px;right:6px}.avatar{color:#fff;cursor:pointer;background:linear-gradient(135deg,#6366f1,#8b5cf6);border-radius:50%;justify-content:center;align-items:center;width:34px;height:34px;font-size:13px;font-weight:600;display:flex}.mobile-menu-btn{display:none}.page-content{flex:1;min-width:0;padding:28px;overflow-y:auto}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-bottom:28px;display:grid}.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);transition:all var(--transition);box-shadow:var(--shadow-sm);padding:20px 22px}.stat-card:hover{border-color:var(--border-hover);box-shadow:var(--shadow);transform:translateY(-2px)}.stat-card-header{justify-content:space-between;align-items:center;margin-bottom:12px;display:flex}.stat-card-header span{color:var(--text-secondary);font-size:13px;font-weight:500}.stat-icon{border-radius:var(--radius);justify-content:center;align-items:center;width:40px;height:40px;display:flex}.stat-icon svg{width:20px;height:20px}.stat-icon.purple{background:var(--accent-muted);color:var(--accent)}.stat-icon.green{background:var(--success-muted);color:var(--success)}.stat-icon.orange{background:var(--warning-muted);color:var(--warning)}.stat-icon.blue{background:var(--info-muted);color:var(--info)}.stat-icon.red{background:var(--danger-muted);color:var(--danger)}.stat-value{letter-spacing:-.02em;margin-bottom:4px;font-size:28px;font-weight:700}.stat-change{color:var(--success);align-items:center;gap:4px;font-size:12px;font-weight:500;display:flex}.stat-change.negative{color:var(--danger)}.table-container{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);min-width:0;overflow:hidden}.card-panel{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:20px;overflow:hidden}.card-panel>.table-header:first-child{margin:-20px -20px 0}.card-panel>.table-responsive{margin:0 -20px -20px}.table-responsive{-webkit-overflow-scrolling:touch;width:100%;min-width:0;overflow:auto hidden}.data-table{border-collapse:collapse;width:max-content;min-width:100%}.expense-table-layout{table-layout:fixed;width:100%;min-width:0}.expense-table-col-date{width:124px}.expense-table-col-summary{width:32%}.expense-table-col-target{white-space:normal;overflow-wrap:anywhere;word-break:break-word;width:38%;line-height:1.6}.expense-table-col-amount{white-space:nowrap;width:148px}.expense-table-col-actions{white-space:nowrap;width:96px}.expense-table-summary{gap:4px;display:grid}.expense-table-summary-title{color:var(--text-primary);overflow-wrap:anywhere;font-weight:600;line-height:1.5}.expense-table-summary-meta,.expense-table-summary-note,.expense-table-target-lines{color:var(--text-secondary);overflow-wrap:anywhere;font-size:13px;line-height:1.6}.data-table tfoot tr{background:linear-gradient(#f8fafc 0%,#eef2ff 100%)}.data-table tfoot td{color:var(--text-primary)}.table-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:12px;padding:16px 20px;display:flex}.table-header h3{font-size:15px;font-weight:600}.table-actions{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.table-search{min-width:min(220px,100%);position:relative}.table-search input{border-radius:var(--radius-sm);width:min(220px,100%);padding:7px 10px 7px 34px;font-size:13px}.table-search svg{width:15px;height:15px;color:var(--text-muted);position:absolute;top:50%;left:10px;transform:translateY(-50%)}table{border-collapse:collapse;width:100%}thead th{text-align:left;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);border-bottom:1px solid var(--border);background:var(--bg-primary);white-space:nowrap;padding:12px 20px;font-size:12px;font-weight:600}tbody tr{transition:background var(--transition)}tbody tr:hover{background:var(--bg-card-hover)}tbody td{border-bottom:1px solid var(--border);white-space:nowrap;padding:14px 20px;font-size:13.5px}tbody tr:last-child td{border-bottom:none}.nav-tabs{border-bottom:1px solid var(--border);gap:8px;margin-bottom:24px;padding-bottom:16px;display:flex}.nav-tab-btn{color:var(--text-secondary);border:1px solid var(--border);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition);background:#fff;align-items:center;gap:8px;padding:10px 16px;font-size:14px;font-weight:600;display:flex}.nav-tab-btn:hover{background:var(--bg-card-hover);color:var(--text-primary)}.nav-tab-btn.active{background:var(--accent-muted);color:var(--accent);border-color:var(--accent)}.student-info{align-items:center;gap:12px;display:flex}.student-avatar{color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;font-size:13px;font-weight:600;display:flex}.student-name{font-weight:500}.student-phone{color:var(--text-muted);margin-top:2px;font-size:12px}.badge{border-radius:20px;align-items:center;gap:5px;padding:4px 10px;font-size:12px;font-weight:500;display:inline-flex}.badge.active{background:var(--success-muted);color:#059669}.badge.inactive{background:var(--danger-muted);color:var(--danger)}.badge.beginner{background:var(--info-muted);color:#2563eb}.badge.intermediate{background:var(--warning-muted);color:#d97706}.badge.advanced{background:var(--accent-muted);color:var(--accent)}.badge.paid{background:var(--success-muted);color:#059669}.badge.pending{background:var(--warning-muted);color:#d97706}.badge.partial{background:var(--info-muted);color:#2563eb}.btn{border-radius:var(--radius-sm);transition:all var(--transition);white-space:nowrap;align-items:center;gap:8px;padding:8px 16px;font-size:13px;font-weight:500;display:inline-flex}.btn-primary{background:var(--accent);color:#fff;box-shadow:0 1px 3px #6366f14d}.btn-primary:hover{background:var(--accent-hover);transform:translateY(-1px);box-shadow:0 4px 12px #6366f14d}.btn-secondary{background:var(--bg-secondary);border:1px solid var(--border);color:var(--text-secondary)}.btn-secondary:hover{background:var(--bg-primary);border-color:var(--border-hover);color:var(--text-primary)}.btn-danger:hover{background:var(--danger);color:#fff}.btn-icon{border-radius:var(--radius-sm);border:1px solid var(--border);width:32px;height:32px;transition:all var(--transition);color:var(--text-secondary);justify-content:center;align-items:center;padding:0;display:inline-flex}.btn-icon:hover{background:var(--bg-primary);border-color:var(--border-hover);color:var(--text-primary)}.btn-icon svg{width:15px;height:15px}.row-actions{flex-wrap:wrap;gap:6px;display:flex}.action-buttons{align-items:center;gap:8px;display:flex}.text-sm{font-size:12px}.font-medium{font-weight:500}.font-semibold{font-weight:600}.text-gray-500{color:var(--text-muted)}.table-footer{border-top:1px solid var(--border);color:var(--text-secondary);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding:12px 20px;font-size:13px;display:flex}.pagination{flex-wrap:wrap;align-items:center;gap:4px;display:flex}.pagination button{border-radius:var(--radius-sm);width:32px;height:32px;transition:all var(--transition);color:var(--text-secondary);justify-content:center;align-items:center;font-size:13px;font-weight:500;display:flex}.pagination button:hover{background:var(--bg-primary)}.pagination button.active{background:var(--accent);color:#fff}.quick-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin-bottom:28px;display:grid}.quick-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);cursor:pointer;transition:all var(--transition);box-shadow:var(--shadow-sm);align-items:center;gap:14px;padding:16px;display:flex}.quick-card:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:0 4px 12px #6366f11f}.quick-card .icon{border-radius:var(--radius);justify-content:center;align-items:center;width:44px;height:44px;display:flex}.quick-card .text h4{margin-bottom:2px;font-size:13.5px;font-weight:600}.quick-card .text p{color:var(--text-muted);font-size:12px}.section-header{justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px;display:flex}.section-header h3{font-size:16px;font-weight:600}.responsive-card-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px;display:grid}.responsive-card-grid--narrow{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}.responsive-card-grid--wide{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}.page-stack{gap:24px;display:grid}.hero-band{background:linear-gradient(#fffffffc 0%,#f8fafcfa 100%);border:1px solid #e2e8f0f5;border-radius:18px;padding:18px 20px;position:relative;overflow:hidden;box-shadow:0 10px 20px #0f172a0a}.hero-band:after{content:none}.hero-band-content{z-index:1;grid-template-columns:1fr;align-items:stretch;gap:14px;display:grid;position:relative}.hero-copy{gap:12px;display:grid}.hero-eyebrow{width:fit-content;color:var(--text-secondary);letter-spacing:.06em;text-transform:uppercase;background:#0f172a0d;border-radius:999px;align-items:center;gap:8px;padding:6px 12px;font-size:12px;font-weight:700;display:inline-flex}.hero-title{letter-spacing:-.03em;max-width:none;font-size:clamp(22px,3vw,30px);font-weight:750;line-height:1.14}.hero-subtitle{max-width:72ch;color:var(--text-secondary);font-size:13px;line-height:1.65}.hero-metrics{flex-wrap:wrap;gap:10px;display:flex}.hero-chip{min-width:132px;box-shadow:var(--shadow-sm);background:#ffffffdb;border:1px solid #94a3b82e;border-radius:16px;padding:12px 14px}.hero-chip-label{color:var(--text-secondary);margin-bottom:4px;font-size:12px;font-weight:600;display:block}.hero-chip-value{letter-spacing:-.03em;font-size:22px;font-weight:800;line-height:1.1;display:block}.hero-side-card{z-index:1;color:var(--text-primary);box-shadow:none;background:#f8fafcf5;border:1px solid #94a3b82e;border-radius:16px;gap:12px;padding:16px;display:grid;position:relative}.hero-side-card h3{font-size:16px;font-weight:700}.hero-side-card p{color:var(--text-secondary);font-size:13px;line-height:1.65}.hero-list{gap:10px;display:grid}.hero-list-item{border-bottom:1px solid #e2e8f0e0;justify-content:space-between;gap:12px;padding-bottom:10px;font-size:13px;display:flex}.hero-list-item:last-child{border-bottom:none;padding-bottom:0}.hero-list-value{color:var(--text-primary);font-weight:700}.hero-actions{flex-wrap:wrap;gap:10px;display:flex}.hero-actions .btn-secondary{color:var(--text-primary);background:#fffffff5;border-color:#94a3b83d}.hero-actions .btn-secondary:hover{color:var(--text-primary);background:#f8fafc}.kanban-board-polished{grid-template-columns:repeat(5,minmax(240px,1fr));align-items:start;gap:12px;width:max(100%,1240px);min-width:1240px;padding-bottom:4px;display:grid}.leads-board-scroll{-webkit-overflow-scrolling:touch;scroll-snap-type:x proximity;overflow:auto hidden}.sync-scroll-shell{margin-bottom:8px}.sync-scroll-shell-table{margin:0 0 2px;padding:0 20px}.sync-scrollbar{scrollbar-gutter:stable;overflow:auto hidden}.sync-scrollbar::-webkit-scrollbar{height:10px}.sync-scrollbar::-webkit-scrollbar-track{background:#e2e8f0d9;border-radius:999px}.sync-scrollbar::-webkit-scrollbar-thumb{background:#94a3b8e6;border-radius:999px}.sync-scrollbar{scrollbar-color:#94a3b8e6 #e2e8f0d9;scrollbar-width:thin}.kanban-column{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);scroll-snap-align:start;background:#ffffffc2;border:1px solid #94a3b82e;border-radius:20px;width:auto;min-width:0;overflow:hidden;box-shadow:0 16px 30px #0f172a0f}.kanban-column-body{min-height:120px;padding:12px}.kanban-card{background:linear-gradient(#fff 0%,#fbfdff 100%);border:1px solid #e2e8f0f2;border-radius:16px;gap:4px;margin-bottom:10px;padding:12px 14px;display:grid;box-shadow:0 10px 20px #0f172a0d}.kanban-card:hover{border-color:#6366f13d;transform:translateY(-1px)}.kanban-card.is-dragging{background:#fff;border-color:#6366f157;box-shadow:0 22px 44px #0f172a29}.editorial-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;display:grid}.editorial-card{background:linear-gradient(#fffffffa 0%,#f8fafcfa 100%);border:1px solid #94a3b829;border-radius:20px;overflow:hidden;box-shadow:0 14px 26px #0f172a0d}.editorial-card-head{padding:18px 20px 0}.editorial-card-title{font-size:16px;font-weight:700}.editorial-card-note{color:var(--text-secondary);margin-top:6px;font-size:13px;line-height:1.6}.editorial-card-body{padding:18px 20px 20px}.compact-metric-grid{grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px;display:grid}.compact-metric{background:#ffffffd6;border:1px solid #94a3b82e;border-radius:16px;padding:14px 16px}.compact-metric-label{color:var(--text-secondary);margin-bottom:4px;font-size:12px}.compact-metric-value{letter-spacing:-.03em;font-size:22px;font-weight:800}.showcase-grid{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;display:grid}.showcase-card{background:linear-gradient(#fffffffa 0%,#f8fafcfa 100%);border:1px solid #94a3b829;border-radius:20px;overflow:hidden;box-shadow:0 16px 28px #0f172a0d}.showcase-card-head{border-bottom:1px solid #e2e8f0e0;padding:18px 20px 12px}.showcase-card-title{font-size:16px;font-weight:700}.showcase-card-note{color:var(--text-secondary);margin-top:6px;font-size:13px;line-height:1.65}.showcase-card-body{padding:18px 20px 20px}.showcase-list{gap:10px;display:grid}.showcase-list-item{border-bottom:1px solid #e2e8f0e0;justify-content:space-between;align-items:center;gap:12px;padding-bottom:10px;font-size:13px;display:flex}.showcase-list-item:last-child{border-bottom:none;padding-bottom:0}.showcase-list-value{color:var(--text-primary);font-weight:700}.inventory-grid-polished{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px;display:grid}.inventory-card-polished{background:#fff;border:1px solid #94a3b829;border-radius:16px;gap:12px;padding:16px;display:grid;box-shadow:0 10px 22px #0f172a0a}.inventory-card-top{justify-content:space-between;align-items:flex-start;gap:12px;display:flex}.inventory-card-name{font-size:16px;font-weight:700}.inventory-card-meta{color:var(--text-secondary);margin-top:4px;font-size:12px}.inventory-card-price{letter-spacing:-.03em;color:var(--primary);font-size:22px;font-weight:800;line-height:1}.inventory-card-description{color:var(--text-secondary);font-size:13px;line-height:1.55}.inventory-card-summary{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;display:flex}.inventory-card-actions{border-top:1px solid #e2e8f0e0;justify-content:flex-end;gap:8px;padding-top:10px;display:flex}.stock-pill{border-radius:999px;align-items:center;gap:6px;width:fit-content;padding:6px 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