:root{--primary: #2E7D32;--primary-dark: #1B5E20;--accent: #4CAF50;--bg: #F4F6F8;--surface: #FFFFFF;--text: #212121;--text-muted: #757575;--border: #E0E0E0;--error: #D32F2F}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background-color:var(--bg);color:var(--text);line-height:1.5}.app-container{display:flex;height:100vh;overflow:hidden}.sidebar{width:260px;background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column}.sidebar-header{padding:20px;font-size:18px;font-weight:700;color:var(--primary);border-bottom:1px solid var(--border);display:flex;align-items:center;gap:10px}.sidebar-nav{flex:1;padding:15px;display:flex;flex-direction:column;gap:5px;overflow-y:auto}.nav-link{display:flex;align-items:center;gap:12px;padding:12px 16px;border-radius:8px;color:var(--text);text-decoration:none;font-weight:500;transition:background .2s}.nav-link:hover,.nav-link.active{background:#e8f5e9;color:var(--primary-dark)}.main-content{flex:1;display:flex;flex-direction:column;overflow:hidden}.topbar{height:64px;background:var(--surface);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 24px}.topbar-title{font-size:20px;font-weight:600;color:var(--text)}.user-menu{display:flex;align-items:center;gap:12px}.content-area{flex:1;padding:24px;overflow-y:auto}.card{background:var(--surface);border-radius:12px;border:1px solid var(--border);padding:20px;box-shadow:0 1px 3px #0000000d;margin-bottom:20px}.card-title{font-size:18px;font-weight:600;margin-bottom:15px;color:var(--text)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 20px;border-radius:8px;font-weight:600;cursor:pointer;border:none;transition:background .2s;text-decoration:none;font-size:14px}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text)}.btn-outline:hover{background:var(--bg)}.form-group{margin-bottom:16px}.form-label{display:block;font-size:14px;font-weight:500;margin-bottom:6px;color:var(--text)}.form-control{width:100%;padding:10px 14px;border-radius:8px;border:1px solid var(--border);font-size:14px;outline:none;transition:border-color .2s}.form-control:focus{border-color:var(--primary)}.auth-wrapper{display:flex;align-items:center;justify-content:center;height:100vh;background:var(--bg);padding:20px}.auth-card{width:100%;max-width:420px;background:var(--surface);border-radius:16px;border:1px solid var(--border);padding:32px;box-shadow:0 4px 12px #0000000d}.auth-title{font-size:24px;font-weight:700;color:var(--primary);margin-bottom:8px;text-align:center}.auth-subtitle{font-size:14px;color:var(--text-muted);margin-bottom:24px;text-align:center}.table{width:100%;border-collapse:collapse;margin-top:10px}.table th,.table td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--border);font-size:14px}.table th{font-weight:600;color:var(--text-muted);background:#fafafa}.table tr:hover{background:#f9f9f9}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;margin-bottom:24px}.stat-card{background:var(--surface);border-radius:12px;border:1px solid var(--border);padding:20px}.stat-value{font-size:28px;font-weight:700;color:var(--primary);margin-top:4px}.stat-label{font-size:14px;color:var(--text-muted);font-weight:500}