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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f7;
}

.container {
    max-width: 980px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background-color: #000;
    color: #fff;
    padding: 40px 0;
    text-align: center;
}

header h1 {
    font-size: 3em;
    color: #ff9500;
    font-weight: 600;
    margin-bottom: 10px;
}

header .tagline {
    font-size: 1.2em;
    color: #a1a1a6;
}

header .tagline a {
    color: #0071e3;
    text-decoration: none;
}

header .tagline a:hover {
    text-decoration: underline;
}

main {
    padding: 60px 0;
}

section {
    margin-bottom: 60px;
}

h1 {
    font-size: 2.5em;
    font-weight: 600;
    margin-bottom: 20px;
    color: #1d1d1f;
}

h2 {
    font-size: 2em;
    font-weight: 600;
    margin-bottom: 20px;
    color: #1d1d1f;
}

h3 {
    font-size: 1.5em;
    font-weight: 600;
    margin-bottom: 15px;
    margin-top: 30px;
    color: #1d1d1f;
}

h4 {
    font-size: 1.2em;
    font-weight: 600;
    margin-bottom: 10px;
    margin-top: 20px;
    color: #1d1d1f;
}

p {
    margin-bottom: 15px;
    font-size: 1.1em;
    color: #515154;
}

ul {
    margin-bottom: 20px;
    margin-left: 30px;
}

li {
    margin-bottom: 10px;
    font-size: 1.1em;
    color: #515154;
}

a {
    color: #0071e3;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.hero {
    text-align: center;
    padding: 40px 0;
}

.hero h2 {
    font-size: 3em;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.3em;
    max-width: 700px;
    margin: 0 auto;
}

.features {
    background-color: #fff;
    padding: 60px 40px;
    border-radius: 18px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    margin-top: 40px;
}

.feature {
    text-align: center;
}

.feature h3 {
    font-size: 1.5em;
    margin-bottom: 15px;
    margin-top: 0;
}

.feature p {
    font-size: 1em;
    color: #86868b;
}

.how-it-works {
    background-color: #fff;
    padding: 60px 40px;
    border-radius: 18px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.step {
    padding: 20px;
    background-color: #f5f5f7;
    border-radius: 12px;
    border-left: 4px solid #ff9500;
}

.step h3 {
    margin-top: 0;
    color: #ff9500;
}

.step p {
    font-size: 0.95em;
    color: #515154;
}

.links {
    background-color: #fff;
    padding: 40px;
    border-radius: 18px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
}

.links ul {
    list-style: none;
    margin-left: 0;
}

.links li {
    margin-bottom: 15px;
}

.links a {
    font-size: 1.2em;
    display: inline-block;
    padding: 10px 0;
}

.content {
    background-color: #fff;
    padding: 60px;
    border-radius: 18px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
}

.content h1 {
    margin-top: 0;
}

.content strong {
    color: #1d1d1f;
}

footer {
    background-color: #f5f5f7;
    padding: 40px 0;
    text-align: center;
    border-top: 1px solid #d2d2d7;
}

footer p {
    color: #86868b;
    font-size: 0.9em;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 2em;
    }

    header .tagline {
        font-size: 1em;
    }

    .hero h2 {
        font-size: 2em;
    }

    .hero p {
        font-size: 1.1em;
    }

    .features,
    .links,
    .content,
    .how-it-works {
        padding: 30px 20px;
    }

    .feature-grid,
    .steps {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    h1 {
        font-size: 2em;
    }

    h2 {
        font-size: 1.7em;
    }

    h3 {
        font-size: 1.3em;
    }
}