:root{--bg: #f0fdfa;--surface: #ffffff;--surface2: #f8fafc;--border: #e2e8f0;--text: #0f172a;--muted: #64748b;--primary: #0f766e;--primary-hover: #0d9488;--danger: #dc2626;--success: #059669;--warning: #d97706;--radius: 12px;--shadow: 0 1px 3px rgba(15, 23, 42, .08), 0 4px 12px rgba(15, 23, 42, .04);--font: "DM Sans", system-ui, sans-serif;--font-ar: "Noto Sans Arabic", "DM Sans", system-ui, sans-serif}[dir=rtl]{font-family:var(--font-ar)}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{min-height:100%}body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.5;-webkit-font-smoothing:antialiased}[dir=rtl] body{font-family:var(--font-ar)}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}.app-shell{display:flex;min-height:100vh}.sidebar{width:260px;background:var(--primary);color:#fff;padding:1.25rem;display:flex;flex-direction:column;flex-shrink:0}.sidebar-brand{font-size:1.35rem;font-weight:700;margin-bottom:2rem;letter-spacing:-.02em}.sidebar nav{display:flex;flex-direction:column;gap:.35rem;flex:1}.sidebar nav a{padding:.65rem .85rem;border-radius:8px;font-weight:500;transition:background .15s}.sidebar nav a:hover,.sidebar nav a.active{background:#ffffff2e}.sidebar-footer{margin-top:auto;padding-top:1rem;display:flex;flex-direction:column;gap:.5rem}.main{flex:1;padding:1.25rem;overflow-x:hidden}.page-header{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:1rem;margin-bottom:1.5rem}.page-header h1{font-size:1.5rem;font-weight:700}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.25rem}.card-grid{display:grid;gap:1rem;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));margin-bottom:1.5rem}.stat-card{padding:1.1rem 1.25rem}.stat-card .label{font-size:.8rem;color:var(--muted);text-transform:uppercase;letter-spacing:.04em;margin-bottom:.35rem}.stat-card .value{font-size:1.5rem;font-weight:700}.stat-card.positive .value{color:var(--success)}.stat-card.negative .value{color:var(--danger)}.stat-card.neutral .value{color:var(--primary)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;padding:.55rem 1rem;border:none;border-radius:8px;font-weight:600;cursor:pointer;transition:background .15s,opacity .15s}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-hover)}.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--border)}.btn-ghost:hover:not(:disabled){background:var(--surface2)}.btn-danger{background:var(--danger);color:#fff}.btn-sm{padding:.35rem .65rem;font-size:.85rem}.form-group{margin-bottom:1rem}.form-group label{display:block;font-size:.85rem;font-weight:600;margin-bottom:.35rem;color:var(--muted)}.form-group input,.form-group select,.form-group textarea{width:100%;padding:.6rem .75rem;border:1px solid var(--border);border-radius:8px;background:var(--surface)}.form-group textarea{min-height:72px;resize:vertical}.form-row{display:grid;gap:1rem;grid-template-columns:repeat(auto-fill,minmax(160px,1fr))}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a73;display:flex;align-items:center;justify-content:center;padding:1rem;z-index:100}.modal{background:var(--surface);border-radius:var(--radius);padding:1.5rem;width:100%;max-width:480px;max-height:90vh;overflow-y:auto;box-shadow:0 20px 40px #00000026}.modal h2{margin-bottom:1.25rem;font-size:1.15rem}.table-wrap{overflow-x:auto}table.data-table{width:100%;border-collapse:collapse;font-size:.9rem}table.data-table th,table.data-table td{padding:.65rem .75rem;text-align:start;border-bottom:1px solid var(--border)}table.data-table th{font-weight:600;color:var(--muted);font-size:.78rem;text-transform:uppercase;letter-spacing:.03em}.badge{display:inline-block;padding:.2rem .5rem;border-radius:6px;font-size:.75rem;font-weight:600}.badge-pending{background:#fef3c7;color:#92400e}.badge-paid,.badge-collected{background:#d1fae5;color:#065f46}.badge-overdue{background:#fee2e2;color:#991b1b}.badge-partial{background:#e0e7ff;color:#3730a3}.charts-row{display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));margin-bottom:1.5rem}.chart-card h3{font-size:.95rem;margin-bottom:1rem;color:var(--muted)}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:1.5rem;background:linear-gradient(145deg,#0f766e,#134e4a,#042f2e)}.login-card{width:100%;max-width:400px;background:var(--surface);border-radius:16px;padding:2rem;box-shadow:0 25px 50px #0003}.login-card h1{color:var(--primary);font-size:1.75rem;margin-bottom:.25rem}.login-card .subtitle{color:var(--muted);margin-bottom:1.75rem;font-size:.95rem}.login-error{background:#fee2e2;color:#991b1b;padding:.65rem;border-radius:8px;margin-bottom:1rem;font-size:.9rem}.lang-toggle{display:flex;gap:.35rem}.lang-toggle button{flex:1;padding:.4rem;border:1px solid rgba(255,255,255,.3);background:transparent;color:#fff;border-radius:6px;cursor:pointer;font-size:.8rem}.lang-toggle button.active{background:#ffffff40}.mobile-nav-toggle{display:none;position:fixed;bottom:1rem;right:1rem;z-index:50;width:48px;height:48px;border-radius:50%;background:var(--primary);color:#fff;border:none;font-size:1.25rem;box-shadow:var(--shadow);cursor:pointer}[dir=rtl] .mobile-nav-toggle{right:auto;left:1rem}@media(max-width:768px){.app-shell{flex-direction:column}.sidebar{position:fixed;inset:0 auto 0 0;z-index:40;transform:translate(-100%);transition:transform .25s;width:min(280px,85vw)}[dir=rtl] .sidebar{inset:0 0 0 auto;transform:translate(100%)}.sidebar.open{transform:translate(0)}.sidebar-backdrop{display:none;position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;z-index:35}.sidebar-backdrop.show{display:block}.mobile-nav-toggle{display:flex;align-items:center;justify-content:center}.main{padding-bottom:4rem}.card-grid{grid-template-columns:1fr 1fr}}@media(max-width:400px){.card-grid{grid-template-columns:1fr}}.loading-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;color:var(--muted)}.filter-bar{margin-bottom:1rem;padding:1rem 1.15rem}.filter-row{display:flex;flex-wrap:wrap;gap:.85rem;align-items:flex-end}.filter-group{flex:1;min-width:140px}.filter-group.filter-search{flex:2;min-width:200px}.filter-group label{display:block;font-size:.78rem;font-weight:600;color:var(--muted);margin-bottom:.3rem}.filter-group input,.filter-group select{width:100%;padding:.5rem .65rem;border:1px solid var(--border);border-radius:8px;background:var(--surface)}.filter-clear{margin-top:.75rem}.results-count{font-size:.85rem;color:var(--muted);margin-bottom:.5rem}.period-badge{background:var(--primary);color:#fff;padding:.35rem .75rem;border-radius:8px;font-size:.85rem;font-weight:600}.history-section{margin-bottom:1.5rem}.history-title{font-size:1rem;margin-bottom:1rem;color:var(--text)}.history-table tbody tr{cursor:default}.history-table tbody tr.row-selected{background:#ccfbf1}.history-table tbody tr:hover{background:var(--surface2)}.text-positive{color:var(--success);font-weight:600}.text-negative{color:var(--danger);font-weight:600}.actions-cell{display:flex;gap:.35rem;flex-wrap:wrap}.empty-state{text-align:center;padding:2rem;color:var(--muted)}