*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:#f6f7fb;color:#111}
.layout{display:flex;min-height:100vh}
.sidebar{width:260px;background:#0f172a;color:#fff;display:flex;flex-direction:column;padding:16px;position:sticky;top:0;height:100vh}
.brand{font-size:20px;font-weight:700;margin-bottom:12px}
nav a{display:block;color:#e5e7eb;text-decoration:none;padding:10px 12px;border-radius:10px;margin:4px 0}
nav a:hover{background:#1f2937}
nav .section{margin-top:16px;font-size:12px;opacity:.7;text-transform:uppercase;letter-spacing:.08em}
.content{flex:1;display:flex;flex-direction:column}
.topbar{display:flex;align-items:center;justify-content:space-between;background:#fff;padding:12px 16px;border-bottom:1px solid #e5e7eb;position:sticky;top:0;z-index:10}
.btn{background:#111827;color:#fff;padding:8px 12px;border-radius:10px;text-decoration:none}
.page{padding:18px}
.card{background:#fff;border:1px solid #e5e7eb;border-radius:16px;padding:16px;margin-bottom:16px;box-shadow:0 1px 2px rgba(0,0,0,.04)}
table{width:100%;border-collapse:collapse;background:#fff;border-radius:16px;overflow:hidden}
th,td{padding:10px;border-bottom:1px solid #eee;text-align:left}
th{background:#f1f5f9}
form .row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
input,select,textarea{width:100%;padding:10px;border:1px solid #e5e7eb;border-radius:10px;background:#fff}
.actions{display:flex;gap:8px}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.note{font-size:12px;color:#6b7280}
.login-wrap{max-width:380px;margin:10vh auto;background:#fff;border:1px solid #eee;border-radius:16px;padding:20px}