/* Color Palette */
:root {
    --dark-blue: #002244;
    --nvidia-green: #76B900;
    --white: #ffffff;
    --light-gray: #f4f7f9;
    --text-main: #333333;
    --text-light: #666666;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--white);
    color: var(--text-main);
    line-height: 1.6;
}

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

/* Navbar */
.navbar {
    background: var(--dark-blue);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    color: var(--white);
    font-size: 24px;
    font-weight: bold;
    letter-spacing: 1px;
}

.logo span {
    color: var(--nvidia-green);
}

.nav-links {
    list-style: none;
    display: flex;
}

.nav-links li {
    margin-left: 30px;
}

.nav-links a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: 0.3s;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--nvidia-green);
}

/* Buttons */
.btn-primary {
    background-color: var(--nvidia-green);
    color: var(--dark-blue);
    border: none;
    padding: 10px 25px;
    font-weight: bold;
    cursor: pointer;
    border-radius: 4px;
    transition: 0.3s;
}

.btn-primary:hover {
    background-color: var(--white);
    color: var(--dark-blue);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--dark-blue) 0%, #004080 100%);
    color: var(--white);
    padding: 100px 0;
    text-align: center;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
}

.highlight {
    color: var(--nvidia-green);
}

.hero p {
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto;
    opacity: 0.9;
}

/* Stats Bar */
.stats-bar {
    background: var(--light-gray);
    padding: 50px 0;
    border-bottom: 2px solid #e0e0e0;
}

.stat-item {
    text-align: center;
}

.stat-item h2 {
    color: var(--dark-blue);
    font-size: 2.5rem;
}

.stat-item p {
    color: var(--text-light);
    font-weight: bold;
    text-transform: uppercase;
}

/* Grids */
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }

/* Values Section */
.values {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 2.5rem;
    color: var(--dark-blue);
}

.underline {
    width: 60px;
    height: 4px;
    background: var(--nvidia-green);
    margin: 10px auto;
}

.card {
    background: var(--white);
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    text-align: center;
    transition: transform 0.3s;
}

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

.card i {
    font-size: 3rem;
    color: var(--nvidia-green);
    margin-bottom: 20px;
}

.card h3 {
    margin-bottom: 15px;
    color: var(--dark-blue);
}

/* Feature Split */
.feature-split {
    padding: 80px 0;
    background-color: var(--dark-blue);
    color: var(--white);
}

.feature-list {
    list-style: none;
    margin-top: 20px;
}

.feature-list li {
    margin-bottom: 10px;
}

.feature-list i {
    color: var(--nvidia-green);
    margin-right: 10px;
}

.image-placeholder {
    background: #003366;
    height: 350px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px dashed var(--nvidia-green);
    border-radius: 8px;
}

@media (max-width: 768px) {
    .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
    .hero h1 { font-size: 2.5rem; }
}