:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --bg-main: #f8fafc;
    --card-bg: #ffffff;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    -webkit-font-smoothing: antialiased;
}

/* SaaS Card Styling */
.card {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background-color: var(--card-bg);
    box-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.05);
    margin-bottom: 1.5rem;
}

.card-header {
    background-color: transparent;
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
    padding: 1.25rem 1.5rem;
}

/* Modern Navbar */
.navbar {
    background-color: #0f172a !important;
    padding: 0.75rem 1rem;
    box-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1);
}

.navbar-brand {
    font-weight: 700;
    letter-spacing: -0.5px;
    font-size: 1.15rem;
}

.navbar-nav .nav-link {
    color: #94a3b8 !important;
    font-weight: 500;
    padding: 0.5rem 0.75rem !important;
    border-radius: 6px;
    transition: all 0.15s ease;
}

.navbar-nav .nav-link:hover, 
.navbar-nav .nav-link.active {
    color: #ffffff !important;
    background-color: rgba(255, 255, 255, 0.08);
}

/* Tables */
.table-responsive {
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: #fff;
}

.table th {
    background-color: #f8fafc !important;
    color: #475569;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.7rem;
    letter-spacing: 0.05em;
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--border-color);
}

.table td {
    padding: 0.85rem 1rem;
    vertical-align: middle;
    color: #334155;
    font-size: 0.875rem;
}

/* Buttons & Inputs */
.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    border-radius: 8px;
    font-weight: 500;
    padding: 0.5rem 1rem;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
}

.form-control, .form-select {
    border-radius: 8px;
    border-color: var(--border-color);
    padding: 0.55rem 0.85rem;
    font-size: 0.875rem;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.badge {
    font-weight: 500;
    padding: 0.4em 0.75em;
    border-radius: 6px;
}