:root {
    --primary-navy: #001f3f;
    --primary-blue: #0074D9;
    --pale-blue: #E6F2FF;
    --white: #FFFFFF;
    --text-dark: #333333;
    --bg-light: #F8F9FA;
}

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

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--bg-light);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background-color: var(--white);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-navy);
}

nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
}

nav a {
    text-decoration: none;
    color: var(--primary-navy);
    font-weight: 500;
}

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

/* Hero Section */
.hero {
    background-color: var(--pale-blue);
    padding: 80px 0;
}

.hero-container {
    display: flex;
    align-items: center;
    gap: 40px;
}

.hero-content {
    flex: 1;
}

.hero h1 {
    font-size: 2.5rem;
    color: var(--primary-navy);
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
}

.cta-button {
    display: inline-block;
    background-color: var(--primary-blue);
    color: var(--white);
    padding: 12px 24px;
    text-decoration: none;
    border-radius: 4px;
    font-weight: bold;
    transition: background-color 0.3s;
}

.cta-button:hover {
    background-color: #0056b3;
}

/* Hero Diagram */
.hero-diagram {
    flex: 1;
    display: flex;
    justify-content: center;
}

.diagram-box {
    display: flex;
    align-items: center;
    background: var(--white);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.diagram-node {
    background-color: var(--primary-navy);
    color: var(--white);
    padding: 15px 20px;
    border-radius: 4px;
    font-weight: bold;
    text-align: center;
}

.center-node {
    background-color: var(--primary-blue);
    transform: scale(1.1);
}

.diagram-line {
    width: 40px;
    height: 4px;
    background-color: #ccc;
}

/* Products Section */
.products {
    padding: 60px 0;
    background-color: var(--white);
}

.products h2 {
    text-align: center;
    color: var(--primary-navy);
    margin-bottom: 40px;
    font-size: 2rem;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.product-card {
    background-color: var(--bg-light);
    padding: 30px;
    border-radius: 8px;
    border: 1px solid #eaeaea;
    transition: transform 0.2s;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.05);
}

.product-card h3 {
    color: var(--primary-navy);
    margin-bottom: 15px;
}

.product-card p {
    margin-bottom: 20px;
    color: #555;
}

.product-card a {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: bold;
}

/* How It Works & Accessory */
.how-it-works, .accessory-entry {
    padding: 60px 0;
    text-align: center;
}

.how-it-works {
    background-color: var(--pale-blue);
}

.accessory-entry {
    background-color: var(--white);
}

.how-it-works h2, .accessory-entry h2 {
    color: var(--primary-navy);
    margin-bottom: 20px;
}

.how-it-works p, .accessory-entry p {
    max-width: 800px;
    margin: 0 auto 30px auto;
    font-size: 1.1rem;
}

/* Footer */
footer {
    background-color: var(--primary-navy);
    color: var(--white);
    text-align: center;
    padding: 40px 0;
}

footer p {
    margin-bottom: 10px;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-container {
        flex-direction: column;
        text-align: center;
    }
    
    .diagram-box {
        flex-direction: column;
    }
    
    .diagram-line {
        width: 4px;
        height: 40px;
    }
}

/* CTA & Value Prop: Quit Spending Big on AI */
.cost-savings-cta {
    background: linear-gradient(135deg, #001f3f 0%, #083358 100%);
    color: #ffffff;
    padding: 70px 0;
    text-align: center;
}

.cost-savings-cta h2 {
    font-size: 2.4rem;
    color: #ffffff;
    margin-bottom: 15px;
    font-weight: 800;
}

.cost-savings-cta .tagline {
    font-size: 1.25rem;
    color: #93c5fd;
    max-width: 820px;
    margin: 0 auto 35px auto;
    line-height: 1.5;
}

.comparison-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 25px;
    max-width: 1000px;
    margin: 0 auto 40px auto;
    text-align: left;
}

.comp-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 8px;
    padding: 30px;
}

.comp-card.highlight {
    background: rgba(0, 116, 217, 0.18);
    border: 2px solid #0074D9;
    box-shadow: 0 8px 24px rgba(0, 116, 217, 0.25);
}

.comp-card h3 {
    font-size: 1.4rem;
    margin-bottom: 12px;
    color: #ffffff;
}

.comp-card.highlight h3 {
    color: #38bdf8;
}

.comp-card ul {
    list-style: none;
    padding: 0;
    margin-top: 15px;
}

.comp-card li {
    padding: 8px 0;
    font-size: 0.98rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.comp-card li:last-child {
    border-bottom: none;
}

.comp-card .bad {
    color: #f87171;
    font-weight: 600;
}

.comp-card .good {
    color: #4ade80;
    font-weight: 600;
}

.cta-action-group {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.cta-button-gold {
    display: inline-block;
    background-color: #f59e0b;
    color: #0f172a;
    padding: 14px 32px;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 700;
    font-size: 1.1rem;
    transition: transform 0.2s, background-color 0.2s;
}

.cta-button-gold:hover {
    background-color: #d97706;
    transform: translateY(-2px);
}

.cta-button-outline {
    display: inline-block;
    background-color: transparent;
    color: #ffffff;
    border: 2px solid #ffffff;
    padding: 12px 28px;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 700;
    font-size: 1.1rem;
    transition: background-color 0.2s;
}

.cta-button-outline:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.category-title {
    color: #e6edf3;
    font-size: 1.4rem;
    margin-bottom: 1.25rem;
    border-left: 4px solid #58a6ff;
    padding-left: 0.75rem;
}
.section-desc {
    color: #8b949e;
    font-size: 1.1rem;
    margin-bottom: 2rem;
}
.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}
.textlink {
    color: #58a6ff;
    text-decoration: none;
    font-weight: 500;
}
.textlink:hover {
    text-decoration: underline;
}