:root{--teal: #00bfa5;--orange: #ff9800;--pink: #e91e63;--sky: #4fc3f7;--dark: #1a1a1a;--bg: #f5f7fa;--card: #ffffff;--muted: #6b7280;--success: #10b981;--error: #ef4444}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Cairo,sans-serif;background:var(--bg);color:var(--dark);min-height:100vh}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--sky),var(--teal));padding:24px}.login-card{background:#fff;border-radius:24px;padding:40px;width:100%;max-width:420px;box-shadow:0 20px 60px #00000026}.login-card img{width:100px;border-radius:16px;display:block;margin:0 auto 20px}.login-card h1{text-align:center;font-size:24px;margin-bottom:8px}.login-card p{text-align:center;color:var(--muted);margin-bottom:28px}input,select{width:100%;padding:14px 16px;border:1px solid #e5e7eb;border-radius:14px;font-family:inherit;font-size:15px;margin-bottom:14px}button{font-family:inherit;cursor:pointer;border:none;border-radius:14px;padding:14px 20px;font-weight:700;font-size:15px}.btn-primary{width:100%;background:linear-gradient(135deg,var(--teal),#00897b);color:#fff}.layout{display:flex;min-height:100vh}.sidebar{width:260px;background:var(--dark);color:#fff;padding:24px 16px;flex-shrink:0}.sidebar .brand{display:flex;align-items:center;gap:12px;padding:0 8px 24px;border-bottom:1px solid rgba(255,255,255,.1);margin-bottom:16px}.sidebar .brand img{width:44px;border-radius:10px}.sidebar .brand span{font-weight:800;font-size:16px}.nav-link{display:block;padding:12px 16px;color:#ffffffbf;text-decoration:none;border-radius:12px;margin-bottom:4px;font-weight:600}.nav-link:hover,.nav-link.active{background:#00bfa533;color:var(--teal)}.main{flex:1;padding:28px;overflow:auto}.page-title{font-size:28px;font-weight:800;margin-bottom:24px}.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:28px}.stat-card{background:#fff;border-radius:20px;padding:24px;box-shadow:0 2px 12px #0000000a}.stat-card .value{font-size:36px;font-weight:800;color:var(--teal)}.stat-card .label{color:var(--muted);margin-top:4px}.table-card{background:#fff;border-radius:20px;overflow:hidden;box-shadow:0 2px 12px #0000000a}table{width:100%;border-collapse:collapse}th,td{padding:14px 16px;text-align:right;border-bottom:1px solid #f0f0f0}th{background:#fafafa;font-weight:700;color:var(--muted);font-size:13px}.badge{display:inline-block;padding:4px 12px;border-radius:20px;font-size:12px;font-weight:700}.badge-success{background:#d1fae5;color:var(--success)}.badge-warning{background:#fef3c7;color:#d97706}.badge-error{background:#fee2e2;color:var(--error)}.btn-sm{padding:6px 14px;font-size:13px;margin-left:6px}.btn-teal{background:var(--teal);color:#fff}.btn-orange{background:var(--orange);color:#fff}.btn-outline{background:#fff;border:1px solid #e5e7eb;color:var(--dark)}.settings-grid{display:grid;gap:16px;max-width:600px}.setting-item{background:#fff;border-radius:16px;padding:20px;display:flex;align-items:center;justify-content:space-between;gap:16px}.setting-item input{width:100px;margin:0}.btn-link{background:none;border:none;color:var(--teal);cursor:pointer;font-family:inherit;font-size:14px;padding:4px 8px}.error-msg{color:var(--error);text-align:center;margin-top:12px;font-size:14px}@media(max-width:768px){.layout{flex-direction:column}.sidebar{width:100%}}.qr-card{background:#fff;border-radius:20px;padding:32px;text-align:center;box-shadow:0 2px 12px #0000000f;max-width:400px}.qr-image{width:280px;height:280px;border-radius:16px;border:4px solid var(--teal)}