:root,[data-theme=dark]{--bg-dark: #0b0f19;--bg-card: rgba(17, 24, 39, .75);--bg-card-hover: rgba(31, 41, 55, .85);--bg-glass: rgba(15, 23, 42, .7);--border-glass: rgba(255, 255, 255, .08);--border-light: rgba(255, 255, 255, .12);--border-glow: rgba(37, 99, 235, .35);--primary: #2563eb;--primary-hover: #1d4ed8;--primary-glow: rgba(37, 99, 235, .4);--primary-light: rgba(37, 99, 235, .15);--accent-cyan: #06b6d4;--accent-blue: #3b82f6;--success: #22c55e;--warning: #f59e0b;--danger: #ef4444;--info: #38bdf8;--text-main: #f8fafc;--text-muted: #94a3b8;--text-dim: #64748b;--font-heading: "Outfit", -apple-system, BlinkMacSystemFont, sans-serif;--font-body: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, sans-serif;--font-mono: "JetBrains Mono", monospace;--radius-sm: 8px;--radius-md: 14px;--radius-lg: 20px;--radius-full: 9999px;--shadow-sm: 0 4px 12px rgba(0, 0, 0, .3);--shadow-md: 0 10px 25px -5px rgba(0, 0, 0, .4);--shadow-lg: 0 20px 40px -15px rgba(0, 0, 0, .6);--shadow-glow: 0 0 30px rgba(37, 99, 235, .25);--transition-fast: .2s cubic-bezier(.4, 0, .2, 1);--transition-normal: .3s cubic-bezier(.4, 0, .2, 1);--bg-header: rgba(11, 15, 25, .85);--bg-header-scrolled: rgba(11, 15, 25, .95);--bg-sidebar: rgba(10, 15, 26, .95)}[data-theme=light],.light-mode{--bg-dark: #f8fafc;--bg-card: rgba(255, 255, 255, .95);--bg-card-hover: #ffffff;--bg-glass: rgba(255, 255, 255, .85);--border-glass: rgba(0, 0, 0, .08);--border-light: rgba(0, 0, 0, .12);--border-glow: rgba(37, 99, 235, .35);--text-main: #0f172a;--text-muted: #475569;--text-dim: #64748b;--shadow-sm: 0 4px 12px rgba(0, 0, 0, .05);--shadow-md: 0 10px 25px -5px rgba(0, 0, 0, .08);--shadow-lg: 0 20px 40px -15px rgba(0, 0, 0, .12);--bg-header: rgba(255, 255, 255, .95);--bg-header-scrolled: #ffffff;--bg-sidebar: #ffffff}[data-theme=light] .comm-header,.light-mode .comm-header{background:#fffffff2!important;border-bottom:1px solid rgba(0,0,0,.08)!important}[data-theme=light] .comm-header.scrolled,.light-mode .comm-header.scrolled{background:#fff!important;box-shadow:0 4px 20px #0000000f!important;border-bottom:1px solid rgba(0,0,0,.08)!important}[data-theme=light] .comm-nav-link,.light-mode .comm-nav-link{color:#475569!important}[data-theme=light] .comm-nav-link:hover,.light-mode .comm-nav-link:hover{color:var(--primary)!important}[data-theme=light] .app-header,.light-mode .app-header{background:#fffffff2!important;border-bottom:1px solid rgba(0,0,0,.08)!important;color:#0f172a!important}[data-theme=light] .app-sidebar,.light-mode .app-sidebar{background:#fff!important;border-right:1px solid rgba(0,0,0,.08)!important}[data-theme=light] .sidebar-footer,.light-mode .sidebar-footer{background:#f8fafc!important;border-top:1px solid rgba(0,0,0,.08)!important}[data-theme=light] .sidebar-brand,.light-mode .sidebar-brand{color:#0f172a!important}[data-theme=light] .nav-item,.light-mode .nav-item{color:#475569!important}[data-theme=light] .nav-item:hover,.light-mode .nav-item:hover{background:#f1f5f9!important;color:#0f172a!important}[data-theme=light] .nav-item.active,.light-mode .nav-item.active{background:#2563eb1a!important;color:var(--primary)!important}[data-theme=light] .user-name,.light-mode .user-name{color:#0f172a!important}[data-theme=light] .search-box,.light-mode .search-box{background:#f8fafc!important;border-color:#0000001a!important}[data-theme=light] .role-select,.light-mode .role-select{background:#f8fafc!important;border-color:#0000001a!important;color:#0f172a!important}[data-theme=light] .theme-toggle-btn{background:#0000000a;border-color:#0000001a;color:#0f172a}[data-theme=light] .theme-toggle-btn:hover{background:#00000014;border-color:var(--primary)}[data-theme=light] table th,[data-theme=light] .students-table th,[data-theme=light] .unpaid-table th,[data-theme=light] .expenses-table th,[data-theme=light] .audit-table th,[data-theme=light] .receipts-table th,[data-theme=light] .schedule-table th,[data-theme=light] .mock-table th{background:#f1f5f9!important;color:#475569!important;border-bottom-color:#00000014!important}[data-theme=light] .window-header-bar{background:#f1f5f9!important;border-bottom-color:#00000014!important}[data-theme=light] .window-sidebar{background:#f8fafc!important;border-right-color:#00000014!important}[data-theme=light] .window-main-panel{background:#fff!important}[data-theme=light] .window-title-text{color:#334155!important}[data-theme=light] .tier-box{background:#f8fafc!important;border-color:#00000014!important}[data-theme=light] .tier-box.active{background:#2563eb14!important;border-color:var(--primary)!important}[data-theme=light] .account-item{background:#f8fafc!important;border-color:#0000000f!important}[data-theme=light] .message-preview-box,[data-theme=light] .step-tab,[data-theme=light] .closing-summary-box,[data-theme=light] .statement-info-grid,[data-theme=light] .total-box,[data-theme=light] .receipt-grid-info,[data-theme=light] .student-quick-info,[data-theme=light] .cb-stats-row{background:#f8fafc!important;border-color:#00000014!important}[data-theme=light] .step-tab strong{color:#0f172a!important}[data-theme=light] .step-tab.active{background:#f59e0b1f!important;border-color:var(--warning)!important}[data-theme=light] .step-tab.active strong{color:var(--warning)!important}[data-theme=light] .message-body{color:#1e293b!important}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;scroll-padding-top:85px;font-size:15px;background-color:var(--bg-dark)}body{font-family:var(--font-body);color:var(--text-main);background-color:var(--bg-dark);line-height:1.55;-webkit-font-smoothing:antialiased;min-height:100vh}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);color:var(--text-main);font-weight:700;line-height:1.25}a{color:inherit;text-decoration:none;transition:var(--transition-fast)}.container{width:100%;max-width:1280px;margin:0 auto;padding:0 1.5rem}.section-container{max-width:1280px;margin:0 auto;padding:5rem 1.5rem}.section-header{text-align:center;max-width:800px;margin:0 auto 3.5rem}.section-subtitle{font-size:.82rem;font-weight:700;text-transform:uppercase;color:var(--primary);letter-spacing:1px;display:block;margin-bottom:.75rem}.section-title{font-size:2.4rem;letter-spacing:-1px;margin-bottom:1rem;line-height:1.25}.section-desc{color:var(--text-muted);font-size:1.05rem;line-height:1.6}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;font-family:var(--font-heading);font-weight:600;font-size:.92rem;padding:.65rem 1.25rem;border-radius:var(--radius-sm);border:1px solid transparent;cursor:pointer;transition:all var(--transition-fast);white-space:nowrap}.btn-primary{background:linear-gradient(135deg,var(--primary) 0%,#1d4ed8 100%);color:#fff;box-shadow:0 4px 15px var(--primary-glow)}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 25px var(--primary-glow)}.btn-secondary{background:#ffffff0f;color:var(--text-main);border-color:var(--border-light);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.btn-secondary:hover{background:#ffffff1f;border-color:var(--primary);transform:translateY(-2px)}.btn-outline-primary{background:transparent;color:var(--primary);border-color:var(--primary)}.btn-outline-primary:hover{background:var(--primary);color:#fff;transform:translateY(-2px)}.btn-danger{background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff}.btn-warning{background:linear-gradient(135deg,#f59e0b,#d97706);color:#fff}.btn-sm{font-size:.8rem;padding:.45rem .85rem;border-radius:6px}.btn-lg{font-size:1.05rem;padding:.85rem 1.75rem;border-radius:var(--radius-md)}.badge{display:inline-flex;align-items:center;gap:.35rem;padding:.25rem .65rem;border-radius:var(--radius-full);font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px}.badge-success{background:#22c55e26;color:#4ade80;border:1px solid rgba(34,197,94,.3)}.badge-warning{background:#f59e0b26;color:#fbbf24;border:1px solid rgba(245,158,11,.3)}.badge-danger{background:#ef444426;color:#f87171;border:1px solid rgba(239,68,68,.3)}.badge-info{background:#06b6d426;color:#38bdf8;border:1px solid rgba(6,182,212,.3)}.theme-toggle-btn{background:#ffffff0d;border:1px solid var(--border-glass);color:var(--text-main);padding:.5rem .9rem;border-radius:var(--radius-full);cursor:pointer;display:inline-flex;align-items:center;gap:.5rem;font-size:.85rem;font-weight:600;transition:all var(--transition-fast)}.theme-toggle-btn:hover{background:#ffffff1a;border-color:var(--primary)}.form-group{display:flex;flex-direction:column;gap:.4rem;margin-bottom:1rem}.form-group label{font-size:.82rem;font-weight:600;color:var(--text-muted)}.form-control,input[type=text],input[type=number],input[type=date],input[type=email],input[type=tel],select,textarea{width:100%;padding:.7rem .9rem;background:#0f172a99;border:1px solid var(--border-glass);border-radius:var(--radius-sm);color:var(--text-main);font-family:inherit;font-size:.9rem;transition:border-color var(--transition-fast)}[data-theme=light] .form-control,[data-theme=light] input,[data-theme=light] select,[data-theme=light] textarea{background:#fff;border-color:#00000026}.form-control:focus,input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #2563eb33}.modal-overlay{position:fixed;inset:0;background:#000000bf;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:9999;display:flex;align-items:center;justify-content:center;padding:1.5rem;animation:fadeIn .25s ease-out}.modal-card{background:#0f172a;border:1px solid var(--border-light);border-radius:var(--radius-md);width:100%;max-width:600px;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-lg);padding:2rem;position:relative;animation:slideUp .3s cubic-bezier(.16,1,.3,1)}[data-theme=light] .modal-card{background:#fff}.modal-close{position:absolute;top:1.25rem;right:1.25rem;background:transparent;border:none;color:var(--text-muted);font-size:1.5rem;cursor:pointer;line-height:1}.modal-close:hover{color:var(--text-main)}.toast-notification{position:fixed;bottom:2rem;right:2rem;background:#0f172a!important;color:#fff!important;border:1.5px solid var(--primary);border-radius:var(--radius-md);padding:1.1rem 1.5rem;box-shadow:0 20px 40px -5px #000c,0 0 25px #2563eb4d;display:flex;align-items:center;gap:1rem;z-index:10000;max-width:440px;animation:slideLeft .3s ease-out}.toast-notification .toast-title{color:#fff!important;font-weight:700;font-size:.95rem}.toast-notification .toast-body{color:#cbd5e1!important;font-size:.88rem}[data-theme=light] .toast-notification,.light-mode .toast-notification{background:#fff!important;color:#0f172a!important;box-shadow:0 15px 35px -5px #00000026,0 0 15px #2563eb1f;border-color:#0000001f}[data-theme=light] .toast-notification .toast-title,.light-mode .toast-notification .toast-title{color:#0f172a!important}[data-theme=light] .toast-notification .toast-body,.light-mode .toast-notification .toast-body{color:#334155!important}.toast-notification.success{border-color:#22c55e!important}.toast-notification.warning{border-color:#f59e0b!important}.toast-notification.error{border-color:#ef4444!important}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px) scale(.97)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes slideLeft{0%{opacity:0;transform:translate(40px)}to{opacity:1;transform:translate(0)}}@media print{body *{visibility:hidden}.printable-receipt,.printable-receipt *{visibility:visible}.printable-receipt{position:absolute;left:0;top:0;width:100%;margin:0;padding:20px;background:#fff!important;color:#000!important}}