:root{--bg-primary: #060610;--bg-secondary: #0b0b18;--bg-card: #0e0e1a;--bg-card-hover: #141425;--bg-input: #111120;--bg-sidebar: #08080f;--border: #1e1e33;--border-light: #161628;--text-primary: #f0f0f5;--text-secondary: #8888a0;--text-muted: #555570;--accent: #2D5BE3;--accent-hover: #3D6BF3;--accent-light: rgba(45, 91, 227, .15);--primary: #2D5BE3;--success: #00c48c;--success-light: rgba(0, 196, 140, .12);--warning: #ffaa00;--warning-light: rgba(255, 170, 0, .12);--danger: #ff4757;--danger-light: rgba(255, 71, 87, .12);--info: #3498db;--info-light: rgba(52, 152, 219, .12);--radius: 12px;--radius-sm: 8px;--radius-lg: 16px;--shadow: 0 4px 24px rgba(0,0,0,.4);--shadow-sm: 0 2px 8px rgba(0,0,0,.3);--transition: all .2s ease;--font-en: "Inter", -apple-system, sans-serif;--font-ar: "Tajawal", -apple-system, sans-serif;--sidebar-width: 260px}*{margin:0;padding:0;box-sizing:border-box}html{background:var(--bg-primary);color:var(--text-primary)}html[lang=en] body{font-family:var(--font-en)}html[lang=ar] body{font-family:var(--font-ar)}body{background:var(--bg-primary);min-height:100vh;-webkit-font-smoothing:antialiased}a{color:var(--accent);text-decoration:none}a:hover{color:var(--accent-hover)}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:var(--bg-secondary)}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.app-layout{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-width);background:var(--bg-sidebar);border-right:1px solid var(--border-light);display:flex;flex-direction:column;position:fixed;top:0;bottom:0;z-index:100;transition:var(--transition)}[dir=rtl] .sidebar{border-right:none;border-left:1px solid var(--border-light)}.sidebar-logo{padding:24px 20px;display:flex;align-items:center;gap:12px;border-bottom:1px solid var(--border-light)}.sidebar-logo img{height:32px}.sidebar-logo-text{font-size:18px;font-weight:700;color:var(--text-primary)}.sidebar-logo-sub{font-size:11px;color:var(--text-muted);margin-top:2px}.sidebar-nav{padding:16px 12px;flex:1}.sidebar-nav-item{display:flex;align-items:center;gap:12px;padding:12px 16px;border-radius:var(--radius-sm);color:var(--text-secondary);cursor:pointer;transition:var(--transition);font-size:14px;font-weight:500;margin-bottom:4px}.sidebar-nav-item:hover{background:var(--bg-card);color:var(--text-primary)}.sidebar-nav-item.active{background:var(--accent-light);color:var(--accent)}.sidebar-nav-item svg{width:20px;height:20px;flex-shrink:0}.sidebar-footer{padding:16px;border-top:1px solid var(--border-light)}.main-content{flex:1;margin-left:var(--sidebar-width);min-height:100vh}[dir=rtl] .main-content{margin-left:0;margin-right:var(--sidebar-width)}.topbar{height:64px;background:var(--bg-secondary);border-bottom:1px solid var(--border-light);display:flex;align-items:center;justify-content:space-between;padding:0 28px;position:sticky;top:0;z-index:50;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.topbar-title{font-size:18px;font-weight:600}.topbar-actions{display:flex;align-items:center;gap:12px}.page-content{padding:28px}.card{background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius);padding:24px;transition:var(--transition)}.card:hover{border-color:var(--border)}.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.card-title{font-size:16px;font-weight:600}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-bottom:24px}.stat-card{background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius);padding:20px;display:flex;align-items:flex-start;gap:16px}.stat-icon{width:48px;height:48px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;flex-shrink:0}.stat-icon.purple{background:var(--accent-light);color:var(--accent)}.stat-icon.green{background:var(--success-light);color:var(--success)}.stat-icon.orange{background:var(--warning-light);color:var(--warning)}.stat-icon.red{background:var(--danger-light);color:var(--danger)}.stat-icon.blue{background:var(--info-light);color:var(--info)}.stat-value{font-size:28px;font-weight:700;line-height:1.2}.stat-label{font-size:13px;color:var(--text-secondary);margin-top:4px}.table-container{overflow-x:auto}table{width:100%;border-collapse:collapse}thead th{text-align:left;padding:12px 16px;font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;color:var(--text-muted);border-bottom:1px solid var(--border-light)}[dir=rtl] thead th{text-align:right}tbody td{padding:14px 16px;font-size:14px;border-bottom:1px solid var(--border-light);color:var(--text-secondary)}tbody tr:hover{background:var(--bg-card-hover)}tbody tr:last-child td{border-bottom:none}.badge{display:inline-flex;align-items:center;padding:4px 12px;border-radius:20px;font-size:12px;font-weight:600}.badge-paid,.badge-active,.badge-accepted{background:var(--success-light);color:var(--success)}.badge-pending,.badge-sent{background:var(--warning-light);color:var(--warning)}.badge-overdue,.badge-cancelled,.badge-rejected,.badge-inactive{background:var(--danger-light);color:var(--danger)}.badge-draft{background:var(--bg-input);color:var(--text-muted)}.badge-converted{background:var(--info-light);color:var(--info)}.badge-failed{background:var(--danger-light);color:var(--danger)}.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border-radius:var(--radius-sm);font-size:14px;font-weight:500;border:none;cursor:pointer;transition:var(--transition);font-family:inherit}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover);transform:translateY(-1px)}.btn-success{background:var(--success);color:#fff}.btn-success:hover{opacity:.9}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{opacity:.9}.btn-ghost{background:transparent;color:var(--text-secondary);border:1px solid var(--border)}.btn-ghost:hover{background:var(--bg-card);color:var(--text-primary)}.btn-sm{padding:6px 12px;font-size:13px}.btn-lg{padding:14px 28px;font-size:16px}.btn-icon{width:36px;height:36px;padding:0;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);background:var(--bg-card);border:1px solid var(--border-light);color:var(--text-secondary);cursor:pointer;transition:var(--transition)}.btn-icon:hover{background:var(--bg-card-hover);color:var(--text-primary)}.form-group{margin-bottom:16px}.form-label{display:block;font-size:13px;font-weight:500;color:var(--text-secondary);margin-bottom:6px}.form-input,.form-select,.form-textarea{width:100%;padding:10px 14px;background:var(--bg-input);border:1px solid var(--border-light);border-radius:var(--radius-sm);color:var(--text-primary);font-size:14px;font-family:inherit;transition:var(--transition)}.form-input:focus,.form-select:focus,.form-textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-light)}.form-textarea{min-height:80px;resize:vertical}.form-select{-webkit-appearance:none;-moz-appearance:none;appearance:none;cursor:pointer}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000b3;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px}.modal{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);width:100%;max-width:600px;max-height:90vh;overflow-y:auto;padding:28px}.modal-lg{max-width:800px}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.modal-title{font-size:20px;font-weight:600}.modal-footer{display:flex;justify-content:flex-end;gap:12px;margin-top:24px}.empty-state{text-align:center;padding:60px 20px;color:var(--text-muted)}.empty-state svg{width:48px;height:48px;margin-bottom:16px;opacity:.5}.empty-state p{font-size:15px}.portal-layout{min-height:100vh;background:var(--bg-primary)}.portal-header{background:var(--bg-secondary);border-bottom:1px solid var(--border-light);padding:16px 28px;display:flex;align-items:center;justify-content:space-between}.portal-content{max-width:1200px;margin:0 auto;padding:28px}.portal-tabs{display:flex;gap:4px;background:var(--bg-secondary);padding:4px;border-radius:var(--radius-sm);margin-bottom:24px}.portal-tab{padding:10px 20px;border-radius:6px;font-size:14px;font-weight:500;color:var(--text-secondary);cursor:pointer;transition:var(--transition);border:none;background:none;font-family:inherit}.portal-tab.active{background:var(--accent);color:#fff}.portal-tab:hover:not(.active){background:var(--bg-card);color:var(--text-primary)}.invoice-detail{background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-lg);overflow:hidden}.invoice-detail-header{padding:28px;border-bottom:1px solid var(--border-light);display:flex;justify-content:space-between;align-items:flex-start}.invoice-detail-body{padding:28px}.invoice-detail-footer{padding:20px 28px;background:var(--bg-secondary);display:flex;justify-content:space-between;align-items:center}.embed-container{background:var(--bg-primary);color:var(--text-primary);min-height:100vh}.lang-toggle{display:flex;align-items:center;gap:8px;padding:6px 12px;border-radius:var(--radius-sm);background:var(--bg-card);border:1px solid var(--border-light);color:var(--text-secondary);cursor:pointer;font-size:13px;font-weight:500;font-family:inherit;transition:var(--transition)}.lang-toggle:hover{border-color:var(--accent);color:var(--text-primary)}@media (max-width: 768px){.sidebar{display:none}.main-content{margin-left:0!important;margin-right:0!important}.form-row{grid-template-columns:1fr}.stats-grid{grid-template-columns:1fr 1fr}.page-content{padding:16px}}.spinner{width:36px;height:36px;border:3px solid var(--border-light);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-screen{display:flex;align-items:center;justify-content:center;min-height:100vh;flex-direction:column;gap:16px}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg-primary);padding:20px}.login-card{width:100%;max-width:420px;background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:40px;text-align:center}.login-card img{height:40px;margin-bottom:24px}.login-card h1{font-size:22px;margin-bottom:8px}.login-card p{color:var(--text-secondary);margin-bottom:28px;font-size:14px}.login-error{background:var(--danger-light);color:var(--danger);padding:10px;border-radius:var(--radius-sm);margin-bottom:16px;font-size:13px}.copy-box{display:flex;align-items:center;gap:8px;background:var(--bg-input);border:1px solid var(--border-light);border-radius:var(--radius-sm);padding:8px 12px;font-size:13px;color:var(--text-secondary);word-break:break-all}.copy-box code{flex:1;font-family:monospace;font-size:12px}.section-tabs{display:flex;gap:8px;margin-bottom:20px;flex-wrap:wrap}