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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.76;
    color: #333;
    background-color: #fff;
    overflow-x: hidden;
}

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0;
}

.hero {
    width: 100vw;
    position: relative;
    left: 50%;
    right: 50%;
    margin-left: -50vw;
    margin-right: -50vw;
    background-size: cover;
    background-position: center bottom;
    background-repeat: no-repeat;
    padding-top: var(--hero-height-mobile, 135%);
}

@media (min-width: 768px) {
    .hero {
        padding-top: var(--hero-height-desktop, 44.4%);
    }
}

.hero-content {
    position: absolute;
    top: 2.5%;
    left: 50%;
    transform: translate(-50%, 0);
    width: 100%;
    text-align: center;
    padding: 0 2rem;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    color: white;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
    margin-bottom: 0;
    line-height: 1;
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 5rem;
    }
}

.hero-subtitle {
    font-size: 2.156rem;
    font-weight: 400;
    color: white;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
    line-height: 1.4;
}

@media (min-width: 768px) {
    .hero-subtitle {
        font-size: 2.875rem;
    }
}

article {
    padding: 0.5rem 1rem 2rem 1rem;
    text-align: center;
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

@media (min-width: 768px) {
    h1 {
        font-size: 4rem;
    }
}

.subtitle {
    font-size: 1.25rem;
    font-weight: 400;
    color: #666;
    margin-bottom: 2rem;
    line-height: 1.4;
}

@media (min-width: 768px) {
    .subtitle {
        font-size: 1.5rem;
    }
}

.content {
    text-align: center;
    font-size: 1rem;
}

@media (min-width: 768px) {
    .content {
        font-size: 1.125rem;
    }
}

.content h2 {
    margin-top: 2rem;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

@media (min-width: 768px) {
    .content h2 {
        font-size: 2rem;
    }
}

.content h3 {
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    font-size: 1.25rem;
}

@media (min-width: 768px) {
    .content h3 {
        font-size: 1.5rem;
    }
}

.content p {
    margin-bottom: 1rem;
}

.content ul, .content ol {
    margin-bottom: 1rem;
    margin-left: 2rem;
}

.content li {
    margin-bottom: 0.5rem;
}

.content a {
    color: #0066cc;
    text-decoration: none;
}

.content a:hover {
    text-decoration: underline;
}

.content code {
    background-color: #f5f5f5;
    padding: 0.2rem 0.4rem;
    border-radius: 3px;
    font-family: "Monaco", "Courier New", monospace;
    font-size: 0.9em;
}

.content pre {
    background-color: #f5f5f5;
    padding: 1rem;
    border-radius: 5px;
    overflow-x: auto;
    margin-bottom: 1rem;
}

.content pre code {
    background-color: transparent;
    padding: 0;
}

.content blockquote {
    border-left: 4px solid #ddd;
    padding-left: 1rem;
    margin: 1rem 0;
    color: #666;
    font-style: italic;
}

.responsive-img {
    width: 100%;
    height: auto;
    display: block;
    margin: 2rem 0;
}