* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
    background: #f4f6f8;
    color: #1f2933;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #102a43;
    color: white;
    padding: 0.75rem 1.5rem;
}
.topbar .brand { font-weight: 700; font-size: 1.1rem; }
.topbar nav a {
    color: #cbd2d9;
    text-decoration: none;
    margin-right: 1.25rem;
    font-size: 0.95rem;
}
.topbar nav a:hover { color: white; }
.user-box { display: flex; align-items: center; gap: 1rem; font-size: 0.9rem; }
.user-box a { color: #9fb3c8; text-decoration: none; }

.content { padding: 1.5rem 2rem; max-width: 1100px; margin: 0 auto; }

h1 { font-size: 1.4rem; margin-bottom: 1rem; }

.kpi-row { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 1.5rem; }
.kpi-card {
    background: white;
    border-radius: 8px;
    padding: 1rem 1.25rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    flex: 1;
    min-width: 180px;
}
.kpi-card .label { font-size: 0.8rem; color: #627d98; text-transform: uppercase; }
.kpi-card .value { font-size: 1.5rem; font-weight: 700; margin-top: 0.25rem; }
.kpi-card .value.negative { color: #c0392b; }
.kpi-card .value.positive { color: #1a7f4e; }

.chart-card {
    background: white;
    border-radius: 8px;
    padding: 1.25rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    margin-bottom: 1.5rem;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}
th, td { padding: 0.5rem 0.75rem; text-align: left; border-bottom: 1px solid #e4e7eb; font-size: 0.9rem; }
th { background: #f0f4f8; color: #334e68; }

.login-body { display: flex; align-items: center; justify-content: center; height: 100vh; }
.login-card {
    background: white;
    padding: 2rem 2.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    width: 280px;
    display: flex;
    flex-direction: column;
}
.login-card h1 { margin: 0; }
.login-card .subtitle { color: #627d98; margin-top: 0; margin-bottom: 1.5rem; }
.login-card label { font-size: 0.85rem; margin-top: 0.75rem; margin-bottom: 0.25rem; color: #334e68; }
.login-card input { padding: 0.5rem; border: 1px solid #d9e2ec; border-radius: 6px; }
.login-card button {
    margin-top: 1.5rem;
    padding: 0.6rem;
    background: #102a43;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.95rem;
}
.login-card .error { color: #c0392b; font-size: 0.85rem; }