/* -------------------------------------------------
   1. Global settings & color palette
   ------------------------------------------------- */
:root {
    /* Dark theme – body & card backgrounds */
    --bg-body:     #2c3e50;   /* main page background */
    --bg-card:     #34495e;   /* card / panel background */
    --bg-sidebar:  #3d566e;   /* sidebar background (slightly lighter) */
    /* Accent / link colour */
    --clr-accent:  #3498db;   /* blue accent for links */
    /* Text colour */
    --clr-text:    #ecf0f1;   /* light whiteish text */
    /* Borders / accents */
    --clr-border:  #1f2b38;   /* dark border colour */
}

* { box-sizing: border-box; }

/* Body */
body {
    margin: 0;
    padding: 0;
    background: var(--bg-body);
    color: var(--clr-text);
    font-family: Arial, Helvetica, sans-serif;
}

/* Links */
a { color: var(--clr-accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* -------------------------------------------------
   2. Layout – wrapper, sidebar, main
   ------------------------------------------------- */
.wrapper { display: flex; min-height: 100vh; }

.sidebar {
    width: 200px;
    background: var(--bg-sidebar);
    padding: 1rem;
}
.sidebar h3 { margin: 0 0 .4rem 0; font-size: 1.1rem; }
.sidebar ul { list-style: none; padding: 0; margin: 0; }
.sidebar ol { list-style: none; padding: 0; margin: 0; }
.sidebar li { margin-bottom: .4rem; }
.sidebar a { color: var(--clr-accent); }
.sidebar a.active { font-weight: bold; }

.main { flex: 1; padding: 1rem; }

/* -------------------------------------------------
   3. Card component
   ------------------------------------------------- */
.card {
    max-width: 950px;
    margin: 20px auto 1rem auto;
    padding: 20px;
    background: var(--bg-card);
    border: 1px solid var(--clr-border);
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,.3);
}

/* -------------------------------------------------
   4. Tables
   ------------------------------------------------- */
table, th, td {
    border: 2px solid var(--clr-border);
    border-collapse: collapse;
}
th, td { padding: 10px; }

/* Alternate row colour for metrics table */
#host_metrics_table tbody tr td:nth-of-type(even) {
    background: #3e5c78;   /* slight contrast */
}

/* -------------------------------------------------
   5. Lists & headings
   ------------------------------------------------- */
h1, h2, h3, h4 { color: var(--clr-text); margin: 0 0 .4rem 0; }
ul { list-style: none; padding: 0; }
ol { list-style: none; padding: 0; }
li { margin-bottom: 10px; color: var(--clr-text); }

/* System & component lists */
.system-list, .info-list {
    list-style: none; padding: 0; margin: 0;
}
.system-list li, .info-list li { margin-bottom: 5px; color: var(--clr-text); }

/* -------------------------------------------------
   6. Components grid
   ------------------------------------------------- */
.components {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
}
.component {
    padding: 10px;
    border: 1px solid var(--clr-border);
    border-radius: 4px;
}
.component h3 { margin: 0 0 5px; }

/* -------------------------------------------------
   7. Help toggle / modal
   ------------------------------------------------- */
.help-link {
    cursor: pointer;
    user-select: none;
    color: var(--clr-accent);
    text-align: right;
}
.help-link:hover { text-decoration: underline; }
#helpText { display: none; }

/* -------------------------------------------------
   8. Misc helpers
   ------------------------------------------------- */
/* Hide numeric markers in metric columns (if any) */
#host_metrics_column td { list-style: none; padding-left: 0; margin-left: 0; }