:root {
    --primary: #007bff;
    --primary-hover: #0056b3;
    --bg-dark: #121212;
    --bg-card: #1e1e1e;
    --text-main: #ffffff;
    --text-muted: #b0b0b0;
    --border: #333;
    --success: #28a745;
    --error: #dc3545;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    margin: 0;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
}

.container {
    width: 100%;
    max-width: 800px;
    background-color: var(--bg-card);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.5);
    border: 1px solid var(--border);
}

h1, h2 {
    text-align: center;
    color: var(--primary);
    margin-bottom: 20px;
}

label {
    display: block;
    margin-top: 15px;
    color: var(--text-muted);
    font-weight: 500;
}

input, select, button {
    width: 100%;
    padding: 12px;
    margin-top: 8px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background-color: #2c2c2c;
    color: white;
    font-size: 16px;
    box-sizing: border-box;
}

input:focus, select:focus {
    outline: 2px solid var(--primary);
    border-color: transparent;
}

button {
    background-color: var(--primary);
    border: none;
    font-weight: bold;
    cursor: pointer;
    margin-top: 25px;
    transition: background 0.2s;
}

button:hover {
    background-color: var(--primary-hover);
}

button.secondary {
    background-color: #6c757d;
}

button.secondary:hover {
    background-color: #5a6268;
}

.nav-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    margin-top: 20px;
}

.nav-card {
    background: #2c2c2c;
    padding: 20px;
    text-align: center;
    border-radius: 8px;
    text-decoration: none;
    color: white;
    font-weight: bold;
    border: 1px solid var(--border);
    transition: transform 0.2s, border-color 0.2s;
}

.nav-card:hover {
    transform: translateY(-2px);
    border-color: var(--primary);
}

.status-bar {
    background: #252525;
    padding: 10px;
    border-radius: 6px;
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    font-size: 0.9em;
    color: var(--text-muted);
}

#responseArea {
    margin-top: 20px;
    padding: 15px;
    background: #000;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-family: monospace;
    white-space: pre-wrap;
    min-height: 100px;
    max-height: 400px;
    overflow-y: auto;
}

/* Table Styles for Averages */
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
}
th, td {
    padding: 10px;
    border: 1px solid var(--border);
    text-align: left;
}
th {
    background-color: #333;
    color: var(--primary);
}