*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--primary: #1565c0;--primary-light: #e3f2fd;--danger: #c62828;--success: #2e7d32;--warning: #f57f17;--bg: #f5f5f5;--surface: #ffffff;--text: #212121;--text-light: #757575;--border: #e0e0e0;--sidebar-width: 240px;--header-height: 56px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.5}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}button,.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border:none;border-radius:4px;font-size:14px;font-weight:500;cursor:pointer;transition:background .15s}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:#0d47a1}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{background:#b71c1c}.btn-secondary{background:var(--border);color:var(--text)}.btn-secondary:hover{background:#bdbdbd}.btn:disabled{opacity:.5;cursor:not-allowed}input,select,textarea{width:100%;padding:8px 12px;border:1px solid var(--border);border-radius:4px;font-size:14px;font-family:inherit}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 2px var(--primary-light)}label{display:block;font-size:13px;font-weight:500;margin-bottom:4px;color:var(--text-light)}.form-group{margin-bottom:16px}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}.form-actions{display:flex;gap:8px;margin-top:20px}.card{background:var(--surface);border-radius:8px;box-shadow:0 1px 3px #0000001a;padding:24px}.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.card-header h2{font-size:18px;font-weight:600}table{width:100%;border-collapse:collapse}th,td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--border);font-size:14px}th{font-weight:600;background:var(--bg);font-size:12px;text-transform:uppercase;color:var(--text-light)}tr:hover td{background:var(--primary-light)}.badge{display:inline-block;padding:2px 8px;border-radius:12px;font-size:12px;font-weight:600}.badge-success{background:#e8f5e9;color:var(--success)}.badge-danger{background:#ffebee;color:var(--danger)}.badge-warning{background:#fff8e1;color:var(--warning)}.badge-info{background:var(--primary-light);color:var(--primary)}.alert{padding:12px 16px;border-radius:4px;margin-bottom:16px;font-size:14px}.alert-success{background:#e8f5e9;color:var(--success);border:1px solid #c8e6c9}.alert-error{background:#ffebee;color:var(--danger);border:1px solid #ffcdd2}.alert-info{background:var(--primary-light);color:var(--primary);border:1px solid #bbdefb}.page-header{margin-bottom:24px}.page-header h1{font-size:24px;font-weight:600}.tabs{display:flex;border-bottom:2px solid var(--border);margin-bottom:20px}.tab{padding:10px 20px;cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-2px;font-weight:500;color:var(--text-light)}.tab.active{color:var(--primary);border-bottom-color:var(--primary)}.spinner{width:32px;height:32px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .6s linear infinite;margin:40px auto}@keyframes spin{to{transform:rotate(360deg)}}.empty-state{text-align:center;padding:40px;color:var(--text-light)}.notification{position:fixed;top:16px;right:16px;z-index:1000;padding:12px 20px;border-radius:6px;font-size:14px;box-shadow:0 4px 12px #00000026;min-width:300px;animation:slideIn .2s ease}@keyframes slideIn{0%{transform:translate(100%);opacity:0}}.notification.success{background:var(--success);color:#fff}.notification.error{background:var(--danger);color:#fff}.notification.info{background:var(--primary);color:#fff}.app-layout{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-width);background:#1a237e;color:#fff;display:flex;flex-direction:column;position:fixed;top:0;bottom:0;left:0;z-index:100}.sidebar-brand{padding:16px 20px;font-size:16px;font-weight:700;border-bottom:1px solid rgba(255,255,255,.1)}.sidebar-nav{flex:1;padding:12px 0}.sidebar-link{display:flex;align-items:center;gap:10px;padding:10px 20px;color:#ffffffb3;font-size:14px;transition:all .15s}.sidebar-link:hover,.sidebar-link.active{background:#ffffff1a;color:#fff;text-decoration:none}.main-area{margin-left:var(--sidebar-width);flex:1;display:flex;flex-direction:column}.app-header{height:var(--header-height);background:var(--surface);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:flex-end;padding:0 24px;position:sticky;top:0;z-index:50}.app-header .user-info{display:flex;align-items:center;gap:12px;font-size:14px}.main-content{padding:24px;flex:1}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#1a237e,#1565c0)}.login-card{width:380px}.login-card h1{text-align:center;margin-bottom:8px;font-size:22px}.login-card .subtitle{text-align:center;color:var(--text-light);margin-bottom:24px;font-size:14px}