:root {
    --primary: #2962FF;
    --secondary: #131722;
    --text: #131722;
    --light-text: #787B86;
    --bg: #FFFFFF;
    --light-bg: #F0F3FA;
}

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

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

a {
    text-decoration: none;
    color: var(--primary);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background: var(--bg);
    border-bottom: 1px solid #E0E3EB;
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: bold;
    font-size: 1.2rem;
    color: var(--secondary);
}

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

nav a {
    color: var(--secondary);
    font-weight: 500;
}

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

.hero {
    text-align: center;
    padding: 80px 20px;
    background-color: var(--light-bg);
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 15px;
    color: var(--secondary);
}

.hero p {
    font-size: 1.25rem;
    color: var(--light-text);
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.btn {
    display: inline-block;
    background-color: var(--primary);
    color: white;
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: 600;
    transition: background 0.2s;
    margin: 5px;
}

.btn:hover {
    background-color: #1E53E5;
}

.btn-secondary {
    background-color: transparent;
    color: var(--secondary);
    border: 1px solid #B2B5BE;
}

.btn-secondary:hover {
    background-color: #F0F3FA;
}

.content {
    padding: 60px 20px;
}

article {
    max-width: 800px;
    margin: 0 auto;
}

h2 {
    font-size: 2rem;
    margin-top: 40px;
    margin-bottom: 20px;
    color: var(--secondary);
}

h3 {
    font-size: 1.5rem;
    margin-top: 25px;
    margin-bottom: 15px;
}

ul.features-list {
    margin-left: 20px;
    margin-bottom: 20px;
}

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

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.step {
    background: var(--light-bg);
    padding: 20px;
    border-radius: 8px;
}

.step h3 {
    margin-top: 0;
    font-size: 1.2rem;
}

footer {
    background: var(--secondary);
    color: white;
    padding: 40px 0;
    margin-top: 60px;
    text-align: center;
}

.footer-links {
    margin-top: 20px;
}

.footer-links a {
    color: #B2B5BE;
    margin: 0 10px;
}

.footer-links a:hover {
    color: white;
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }
}