:root{--font-stack: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;--bg: #f6f8fa;--surface: #ffffff;--text: #0f172a;--muted: #6b7280;--primary: #0ea5a4;--primary-600: #059f9b;--radius: 10px;--shadow: 0 8px 24px rgba(15, 23, 42, .06);--gap: 16px}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font-stack);-webkit-font-smoothing:antialiased}.app-shell{display:flex;min-height:100vh}.sidebar{width:220px;padding:20px;background:linear-gradient(180deg,#fff,#f8fafb);border-right:1px solid #eef2f7}.main{flex:1;padding:24px}.container{max-width:1100px;margin:0 auto;padding:20px;background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow)}.app-header{display:flex;justify-content:space-between;align-items:center;gap:var(--gap);padding:8px 12px}.logo{font-weight:700;color:var(--primary-600)}.btn{padding:8px 12px;border-radius:8px;border:0;background:var(--primary);color:#fff;cursor:pointer;transition:background .15s ease}.btn:hover{background:var(--primary-600)}.btn.secondary{background:transparent;color:var(--text);border:1px solid #e6edf3}.nav{display:flex;flex-direction:column;gap:8px}.nav button{text-align:left;padding:10px 12px;border-radius:8px;background:transparent;border:0;cursor:pointer;color:var(--text)}.nav button.active{background:var(--primary);color:#fff}.table{width:100%;border-collapse:collapse;background:transparent}.table th,.table td{padding:12px 10px;border-bottom:1px solid #eef2f7;text-align:left;vertical-align:middle}.table thead th{color:var(--muted);font-weight:600;font-size:13px}.chip{display:inline-block;padding:4px 8px;border-radius:999px;background:#f1fdfc;color:var(--primary-600);font-size:12px}.actions button{margin-right:8px}.login-form{max-width:420px;margin:80px auto;padding:24px;background:var(--surface);border-radius:12px;box-shadow:var(--shadow)}input,select,textarea{padding:10px;border:1px solid #e6edf3;border-radius:8px;width:100%;box-sizing:border-box}.modal-backdrop{position:fixed;left:0;top:0;right:0;bottom:0;background:#00000052;display:flex;align-items:center;justify-content:center}.modal-card{background:var(--surface);padding:20px;border-radius:10px;min-width:360px;box-shadow:var(--shadow)}@media(max-width:800px){.sidebar{display:none}.app-shell{padding:12px}}