/* Mainline Dyno Server - Enhanced Unified Styles */
/* ===== CSS Variables ===== */
:root {
    --mainline-blue: #0052cc;
    --mainline-blue-light: #0066ff;
    --mainline-blue-dark: #003d99;
    --mainline-gray: #2c3e50;
    --mainline-dark-gray: #34495e;
    --mainline-light: #f5f5f5;
    --mainline-accent: #ffcc00;
    /* Added accent color for highlights */
    --shadow-soft: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 6px 16px rgba(0, 0, 0, 0.15);
    --transition-fast: 0.2s ease;
    --font-primary: 'Roboto', sans-serif;
    /* Modern font stack */
    --font-mono: 'Source Code Pro', monospace;
    /* For code-like elements */
}

/* ===== Layout & Body ===== */
body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background-color: #ffffff;
    color: #333;
    font-family: var(--font-primary);
    line-height: 1.6;
    font-size: 1rem;
}

main {
    flex: 1;
    padding: 2rem 0;
    /* Added padding for better spacing */
}

/* ===== Navigation ===== */
.navbar {
    background-color: var(--mainline-gray) !important;
    box-shadow: var(--shadow-soft);
}

.navbar-brand {
    color: var(--mainline-light) !important;
    font-weight: 700;
    font-size: 1.4rem;
    /* Slightly larger for impact */
    letter-spacing: 0.5px;
}

.navbar-nav .nav-link {
    color: #ffffff !important;
    transition: color var(--transition-fast), transform var(--transition-fast);
    padding: 0.75rem 1rem;
    /* Better spacing */
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--mainline-blue-light) !important;
    transform: scale(1.05);
    /* Subtle zoom on hover */
}

/* ===== Header ===== */
header {
    background: linear-gradient(135deg, var(--mainline-blue), var(--mainline-blue-dark)) !important;
    /* Gradient for depth */
    box-shadow: var(--shadow-soft);
    padding: 3rem 0;
    /* More padding for prominence */
    text-align: center;
}

header h1 {
    color: #ffffff;
    font-weight: 700;
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

header p {
    color: #e0e0e0;
    font-size: 1.1rem;
}

h2 {
    color: var(--mainline-blue);
    font-weight: 600;
    border-bottom: 2px solid var(--mainline-blue-light);
    padding-bottom: 0.5rem;
    margin-bottom: 1.5rem;
}

/* ===== Cards ===== */
.card {
    background-color: #ffffff;
    border: none;
    /* Removed border for cleaner look */
    border-radius: 12px;
    /* Softer corners */
    box-shadow: var(--shadow-soft);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    overflow: hidden;
    /* Prevent content overflow */
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.card-header {
    background-color: #f9f9f9 !important;
    border-bottom: 3px solid var(--mainline-blue);
    font-weight: 600;
    padding: 1rem 1.25rem;
}

.card-title {
    color: var(--mainline-blue);
    font-size: 1.25rem;
}

.card-body {
    padding: 1.5rem;
    /* More comfortable padding */
}

/* ===== Buttons ===== */
.btn-primary {
    background-color: var(--mainline-blue) !important;
    border-color: var(--mainline-blue) !important;
    border-radius: 6px;
    transition: background-color var(--transition-fast), transform var(--transition-fast);
    font-weight: 500;
}

.btn-primary:hover {
    background-color: var(--mainline-blue-light) !important;
    border-color: var(--mainline-blue-light) !important;
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: var(--mainline-gray) !important;
    border-color: var(--mainline-gray) !important;
}

/* ===== Tables ===== */
.table {
    color: #333;
    border-radius: 8px;
    overflow: hidden;
    /* For rounded corners on table */
    box-shadow: var(--shadow-soft);
}

thead {
    background-color: #f5f5f5 !important;
    border-bottom: 2px solid var(--mainline-blue);
}

thead th {
    color: var(--mainline-blue);
    font-weight: 600;
    padding: 1rem;
    text-align: left;
}

tbody tr {
    border-bottom: 1px solid #e0e0e0;
    transition: background-color var(--transition-fast);
}

tbody tr:hover {
    background-color: #f0f8ff;
    /* Light blue tint on hover */
}

.table-responsive {
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

/* ===== Badges & Status ===== */
.badge {
    font-weight: 600;
    font-size: 0.8rem;
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    /* Pill shape */
}

.bg-blue {
    background-color: var(--mainline-blue) !important;
}

.bg-blue:hover {
    background-color: var(--mainline-blue-light) !important;
}

.version-badge {
    background-color: var(--mainline-blue) !important;
    color: white !important;
}

.status-badge {
    background-color: var(--mainline-gray) !important;
    color: white !important;
}

.status-badge.beta {
    background-color: var(--mainline-blue-light) !important;
}

.last-checkin {
    font-size: 0.85rem;
    color: #666;
    font-style: italic;
}

/* ===== Forms ===== */
.form-select:focus,
.form-control:focus {
    border-color: var(--mainline-blue);
    box-shadow: 0 0 0 0.25rem rgba(0, 82, 204, 0.25);
}

.form-label {
    font-weight: 500;
    color: var(--mainline-gray);
}

/* ===== Alerts & Progress ===== */
.alert {
    background-color: var(--mainline-light);
    color: #333;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 1.25rem;
    margin-bottom: 1.5rem;
}

.progress {
    background-color: #e0e0e0;
    border-radius: 20px;
    height: 0.75rem;
}

.progress-bar {
    background-color: var(--mainline-blue) !important;
    transition: width 0.6s ease;
}

/* ===== Footer ===== */
footer {
    background-color: var(--mainline-gray) !important;
    color: #ffffff;
    margin-top: auto;
    padding: 2rem 0;
    text-align: center;
}

footer p {
    color: #ffffff;
    margin: 0;
    font-size: 0.9rem;
}

/* ===== Utilities ===== */
.text-muted {
    color: #888 !important;
}

.text-accent {
    color: var(--mainline-accent) !important;
}

.bg-gradient-accent {
    background: linear-gradient(135deg, var(--mainline-blue), var(--mainline-accent)) !important;
}

/* ===== Media Queries for Responsiveness ===== */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }

    .navbar-nav .nav-link {
        padding: 0.5rem 1rem;
    }

    .card {
        margin-bottom: 1.5rem;
    }

    .table-responsive {
        font-size: 0.85rem;
    }
}