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

html {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, Segoe UI, Roboto,
    Ubuntu, sans-serif;
    background: #0b0f19;
    color: #e6e9f0;
}

body {
    max-width: 1200px;
    margin: 0 auto;
    padding: 48px 24px;
    line-height: 1.6;
}

header {
    margin-bottom: 4rem;
}

h1 {
    color: #ffffff;
    font-size: 3rem;
    margin: 0 0 1rem 0;
    font-weight: 700;
    line-height: 1.2;
}

h2 {
    color: #ffffff;
    font-size: 1.9rem;
    margin: 2.4rem 0 1rem 0;
    font-weight: 600;
    line-height: 1.25;
}

h3 {
    color: #ffffff;
    font-size: 1.4rem;
    margin: 0 0 0.8rem 0;
    font-weight: 600;
}

p {
    margin: 0.75rem 0;
    color: #cfd5e3;
    font-size: 1.05rem;
}

.tagline {
    color: #7aa2ff;
    font-size: 1.3rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.subtitle {
    color: #b3b9d4;
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto;
}

.intro {
    font-size: 1.15rem;
    color: #e6e9f0;
    margin: 1.5rem 0 2rem 0;
}

.cta {
    margin: 2.5rem 0;
    text-align: center;
}

.cta a {
    display: inline-block;
    background: #7aa2ff;
    color: #0b0f19;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    padding: 16px 36px;
    border-radius: 8px;
    transition: all 0.2s ease;
    box-shadow: 0 4px 12px rgba(122, 162, 255, 0.3);
}

.cta a:hover {
    background: #8fb0ff;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(122, 162, 255, 0.4);
}

.features-grid,
.test-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 28px;
    margin: 3rem 0;
}

.test-cards {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin: 2rem 0;
}

.feature,
.card {
    background: #151a2c;
    border: 1px solid #2a2f45;
    border-radius: 12px;
    padding: 32px;
    transition: all 0.2s ease;
}

.card {
    padding: 28px;
}

.feature:hover,
.card:hover {
    border-color: #7aa2ff;
    transform: translateY(-2px);
}

.card:hover {
    box-shadow: 0 8px 24px rgba(122, 162, 255, 0.15);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature h2,
.card h3 {
    color: #7aa2ff;
    font-size: 1.4rem;
    margin: 0 0 0.8rem 0;
    font-weight: 600;
}

.feature h2 {
    color: #ffffff;
}

.feature p,
.card p {
    color: #cfd5e3;
    line-height: 1.6;
}

.card p {
    color: #b3b9d4;
    margin: 0.5rem 0;
    font-size: 0.95rem;
}

.card .badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 0.8rem 0.4rem 0.8rem 0;
}

.badge.ssr {
    background: #1b4332;
    color: #8affb3;
}

.badge.csr {
    background: #3d2a1f;
    color: #ffb366;
}

.card a {
    display: inline-block;
    color: #7aa2ff;
    text-decoration: none;
    font-weight: 500;
    margin-top: 1rem;
    padding: 10px 20px;
    background: #1b2140;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.card a:hover {
    background: #2a3358;
    transform: translateX(4px);
}

.about,
.features-list {
    background: #111726;
    border-left: 4px solid #7aa2ff;
    padding: 28px 32px;
    margin: 4rem 0;
    border-radius: 4px;
}

.features-list {
    padding: 20px 24px;
    margin: 2rem 0;
}

.about h2,
.features-list h3 {
    color: #ffffff;
    font-size: 1.5rem;
    margin: 0 0 1rem 0;
}

.features-list h3 {
    font-size: 1.2rem;
}

.about p {
    color: #cfd5e3;
    margin: 0.8rem 0;
    line-height: 1.7;
}

.features-list ul {
    margin: 0;
    padding-left: 20px;
}

.features-list li {
    color: #cfd5e3;
    margin: 0.5rem 0;
}

code {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    background: #1b2140;
    padding: 2px 6px;
    border-radius: 3px;
    color: #9ad0ff;
    font-size: 0.9em;
}

.footer {
    margin-top: 5rem;
    padding-top: 2rem;
    border-top: 1px solid #2a2f45;
    color: #8b93b5;
    font-size: 0.9rem;
    text-align: center;
}

.footer a {
    color: #7aa2ff;
    text-decoration: none;
}

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

@media (max-width: 768px) {
    body {
        max-width: 960px;
    }

    h1 {
        font-size: 2.2rem;
    }

    .tagline {
        font-size: 1.1rem;
    }

    .subtitle {
        font-size: 1rem;
    }

    .features-grid,
    .test-cards {
        grid-template-columns: 1fr;
    }
}