/* Reset & Base Styles */
:root {
    --primary-color: #2563eb; /* Trustworthy Blue */
    --accent-color: #1e40af;
    --bg-color: #ffffff;
    --text-color: #1f2937;
    --light-gray: #f3f4f6;
    --border-color: #e5e7eb;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
}

/* Layout Utilities */
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

/* Navigation Placeholder Styling */
#nav-placeholder {
    background-color: var(--light-gray);
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
}

#nav-placeholder nav {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1rem;
    text-align: right;
}

#nav-placeholder a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 600;
    margin-left: 20px;
}

#nav-placeholder a:hover {
    color: var(--primary-color);
}

/* Hero Section */
.hero-section {
    text-align: center;
    padding: 3rem 0;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    line-height: 1.2;
    color: #111827;
}

.lead {
    font-size: 1.25rem;
    color: #4b5563;
}

h2 {
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: #111827;
}

h3 {
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

/* Content Blocks */
.content-block {
    margin-bottom: 3rem;
}

.highlight-box {
    background-color: #eff6ff;
    border-left: 4px solid var(--primary-color);
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: 4px;
}

/* Grid for Cards */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-top: 2rem;
}

@media (min-width: 600px) {
    .grid-2 {
        grid-template-columns: 1fr 1fr;
    }
}

.card {
    background: var(--light-gray);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

/* Table Styling */
.table-wrapper {
    overflow-x: auto;
    margin: 2rem 0;
}

.savings-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1rem;
}

.savings-table th, 
.savings-table td {
    text-align: left;
    padding: 12px;
    border-bottom: 1px solid var(--border-color);
}

.savings-table th {
    background-color: var(--light-gray);
    font-weight: 600;
}

.total-row td {
    background-color: #ecfdf5; /* Light green for savings */
    font-weight: bold;
    color: #065f46;
    border-top: 2px solid #10b981;
}

/* CTA & Buttons */
.cta-section {
    text-align: center;
    background-color: var(--light-gray);
    padding: 3rem 1.5rem;
    border-radius: 12px;
}

.button {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: 12px 24px;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
    transition: background-color 0.2s;
}

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

/* Footer */
.site-footer {
    text-align: center;
    padding: 2rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.9rem;
    color: #6b7280;
    margin-top: 4rem;
}