body {
    margin: 0;
    background-color: #f4f6f9;
}

.app {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 260px;
    background-color: #0d3b66;
    color: white;
    padding: 20px;
    flex-shrink: 0;
}

.sidebar-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 25px;
}

.sidebar-title small {
    display: block;
    font-size: 0.85rem;
    font-weight: 400;
    color: #cfe8ff;
}

.sidebar-section {
    color: #9cc7ef;
    text-transform: uppercase;
    font-size: 0.75rem;
    margin: 22px 0 8px;
    letter-spacing: 0.08em;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #dbeafe;
    text-decoration: none;
    padding: 12px 14px;
    border-radius: 8px;
    margin-bottom: 8px;
}

.sidebar-link:hover,
.sidebar-link.active {
    background-color: #145da0;
    color: white;
}

.sidebar-version {
    margin-top: 30px;
    color: #cfe8ff;
    font-size: 0.85rem;
}

.content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.topbar {
    height: 70px;
    background-color: white;
    border-bottom: 1px solid #e5e7eb;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 30px;
    font-size: 1.1rem;
}

.main {
    flex: 1;
    padding: 35px;
}

.footer {
    text-align: center;
    color: #6c757d;
    padding: 20px;
    font-size: 0.9rem;
}

.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #0d3b66;
}

.login-card {
    width: 100%;
    max-width: 420px;
    border: 0;
    border-radius: 14px;
}