:root {
    --primary-color: #0f172a;
    --secondary-color: #38bdf8;
    --text-color: #334155;
    --light-bg: #f8fafc;
    --white: #ffffff;
    --accent: #2563eb;
}

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

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

header {
    background: linear-gradient(135deg, var(--primary-color) 0%, #1e293b 100%);
    color: var(--white);
    padding: 2rem 5%;
    text-align: center;
}

nav {
    display: flex;
    justify-content: center;
    margin-bottom: 4rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -1px;
    color: var(--secondary-color);
}

.hero {
    max-width: 800px;
    margin: 0 auto;
    padding-bottom: 4rem;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    letter-spacing: -2px;
}

.hero p {
    font-size: 1.25rem;
    opacity: 0.9;
}

main {
    max-width: 900px;
    margin: -3rem auto 0;
    padding: 0 5% 5rem;
}

.content-section {
    background: var(--white);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
}

article {
    margin-bottom: 3rem;
}

h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 2rem;
    border-left: 5px solid var(--secondary-color);
    padding-left: 1rem;
}

p {
    margin-bottom: 1.2rem;
    font-size: 1.1rem;
}

.info-card {
    background: #eff6ff;
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid #dbeafe;
}

.info-card h3 {
    color: var(--accent);
    margin-bottom: 1rem;
}

.info-card ul {
    list-style: none;
}

.info-card li {
    margin-bottom: 0.8rem;
    position: relative;
    padding-left: 1.5rem;
}

.info-card li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: bold;
}

.grid-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-top: 2rem;
}

.grid-item {
    background: var(--light-bg);
    padding: 1.5rem;
    border-radius: 12px;
}

.grid-item h3 {
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

footer {
    text-align: center;
    padding: 3rem;
    color: #94a3b8;
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    .grid-container {
        grid-template-columns: 1fr;
    }
    .content-section {
        padding: 1.5rem;
    }
}