:root {
    /* Brand Colors */
    --primary-blue: #00558C; /* Approximate ePlus Blue */
    --accent-blue: #00A3E0;
    --dark-bg: #1A1A1A;
    --light-bg: #F8F9FA;
    --text-color: #333333;
    --text-muted: #666666;
    --white: #FFFFFF;

    /* Spacing & Layout */
    --container-width: 1200px;
    --header-height: 80px;
    --border-radius: 12px;
    --transition-speed: 0.3s;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    margin: 0;
    padding: 0;
    color: var(--text-color);
    background-color: var(--light-bg);
    line-height: 1.6;
}

h1, h2, h3 {
    margin: 0;
    font-weight: 700;
}

a {
    transition: all var(--transition-speed) ease;
}

/* Header */
header {
    background: var(--white);
    height: var(--header-height);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

header .container {
    max-width: var(--container-width);
    margin: 0 auto;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-blue);
    text-decoration: none;
    letter-spacing: -0.5px;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-blue) 0%, #003366 100%);
    color: var(--white);
    padding: 8rem 2rem;
    text-align: center;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero p {
    font-size: 1.25rem;
    max-width: 700px;
    margin: 0 auto 3rem;
    opacity: 0.9;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background: var(--white);
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 600;
    border-radius: 50px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.15);
}

/* AI Solutions Section */
.solutions {
    padding: 6rem 2rem;
    max-width: var(--container-width);
    margin: 0 auto;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 3rem;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

.card {
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    transition: transform var(--transition-speed) ease;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-10px);
}

.card-image {
    height: 200px;
    background-color: var(--app-builder-bg, #eee);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: rgba(255,255,255,0.8);
}

.card-content {
    padding: 2rem;
}

.card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-blue);
}

.card p {
    color: var(--text-muted);
    font-size: 1rem;
}

/* Card Specific Styles */
.card.support-bot .card-image {
    background: linear-gradient(135deg, #00C6FF, #0072FF);
}

.card.app-builder .card-image {
    background: linear-gradient(135deg, #FF512F, #DD2476);
}

/* Footer */
footer {
    background: var(--dark-bg);
    color: var(--white);
    text-align: center;
    padding: 3rem 2rem;
    margin-top: auto;
}

footer p {
    opacity: 0.6;
    font-size: 0.9rem;
}