:root,[data-theme=light]{--bg: #f5f5f5;--bg-card: #ffffff;--text: #1a1a1a;--text-muted: #666;--border: #e0e0e0;--primary: #1976d2;--primary-hover: #1565c0;--success: #2e7d32;--warning: #ed6c02;--error: #d32f2f}[data-theme=dark]{--bg: #121212;--bg-card: #1e1e1e;--text: #e0e0e0;--text-muted: #aaa;--border: #333;--primary: #42a5f5;--primary-hover: #64b5f6;--success: #66bb6a;--warning: #ffb74d;--error: #ef5350}*{box-sizing:border-box}html{font-family:system-ui,-apple-system,sans-serif}html[lang=ar],[dir=rtl]{font-family:Cairo,system-ui,sans-serif}body{margin:0;background:var(--bg);color:var(--text);min-height:100vh}[dir=rtl]{text-align:right}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}button{font-family:inherit;cursor:pointer}input,select,textarea{font-family:inherit}.app{min-height:100vh;display:flex;flex-direction:column}.layout{display:flex;flex-height:100vh}.sidebar{width:240px;min-height:100vh;background:var(--bg-card);border-inline-end:1px solid var(--border);padding:1rem 0}.sidebar a{display:block;padding:.75rem 1.5rem;color:var(--text);text-decoration:none}.sidebar a:hover,.sidebar a.active{background:var(--primary);color:#fff;text-decoration:none}.main{flex:1;padding:1.5rem;overflow:auto}.card{background:var(--bg-card);border-radius:8px;border:1px solid var(--border);padding:1.25rem;margin-bottom:1rem}.card h2{margin-top:0;font-size:1.25rem}.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.5rem 1rem;border-radius:6px;border:none;font-size:.9rem;font-weight:500}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-hover)}.btn-secondary{background:var(--border);color:var(--text)}.btn-success{background:var(--success);color:#fff}.btn-danger{background:var(--error);color:#fff}.btn:disabled{opacity:.6;cursor:not-allowed}.form-group{margin-bottom:1rem}.form-group label{display:block;margin-bottom:.35rem;font-weight:500;color:var(--text-muted)}.form-group input,.form-group select,.form-group textarea{width:100%;padding:.5rem .75rem;border:1px solid var(--border);border-radius:6px;background:var(--bg-card);color:var(--text)}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--primary)}table{width:100%;border-collapse:collapse}th,td{padding:.75rem;text-align:start;border-bottom:1px solid var(--border)}th{font-weight:600;color:var(--text-muted)}tr:hover{background:var(--bg)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:1rem}.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:8px;padding:1.25rem}.stat-card .value{font-size:1.75rem;font-weight:700;color:var(--primary)}.stat-card .label{font-size:.875rem;color:var(--text-muted);margin-top:.25rem}.toolbar{display:flex;align-items:center;gap:1rem;margin-bottom:1rem;flex-wrap:wrap}.toolbar input{max-width:280px;padding:.5rem .75rem;border:1px solid var(--border);border-radius:6px;background:var(--bg-card);color:var(--text)}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:1rem}.login-box{width:100%;max-width:400px;background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:2rem}.login-box h1{margin-top:0;text-align:center;margin-bottom:1.5rem}.alert{padding:.75rem 1rem;border-radius:6px;margin-bottom:1rem}.alert-error{background:#d32f2f26;color:var(--error)}.header-row{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem;margin-bottom:1rem}.header-row h1{margin:0;font-size:1.5rem}