:root {
    --accent: #a2e578;
    --accent-dark: #a2e578;
    --bg-body: #f7f7f9;
    --bg-card: #ffffff;
    --text-main: #222222;
    --text-muted: #666666;
    --border-soft: #e0e0e5;
    --link: var(--accent);
    --link-hover: var(--accent-dark);
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
}

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

a {
    color: var(--link);
    text-decoration: none;
}
a:hover,
a:focus {
    color: var(--link-hover);
    text-decoration: underline;
}

.site-header {
    background: var(--accent);
    color: #ffffff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.08);
}
.site-header .shell {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0.75rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}
.site-brand a {
    font-weight: 600;
    font-size: 1.15rem;
    color: #ffffff;
    text-decoration: none;
}
.site-brand a:hover {
    text-decoration: underline;
}

.site-nav {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}
.site-nav a {
    color: #ffffff;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    font-size: 0.9rem;
    background: rgba(0,0,0,0.0);
}
.site-nav a:hover {
    background: rgba(0,0,0,0.16);
}

.site-main {
    max-width: 1080px;
    margin: 1.5rem auto 2rem auto;
    padding: 0 1.25rem;
}

.page-card {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 1.5rem 1.75rem;
    box-shadow: 0 8px 25px rgba(15, 23, 42, 0.06);
    border: 1px solid var(--border-soft);
}

.page-title {
    margin: 0 0 0.4rem 0;
    font-size: 1.6rem;
}
.page-subtitle {
    margin: 0 0 1.1rem 0;
    color: var(--text-muted);
    font-size: 0.98rem;
}

.page-body {
    font-size: 0.98rem;
}

.blog-list {
    list-style: none;
    padding-left: 0;
    margin: 0.5rem 0 0 0;
}
.blog-list li {
    margin: 0.4rem 0;
}
.blog-list a {
    font-weight: 500;
}

.site-footer {
    border-top: 1px solid var(--border-soft);
    padding: 1.25rem 1.25rem 1.75rem 1.25rem;
    margin-top: 2rem;
    background: #f1f1f6;
}
.site-footer-shell {
    max-width: 1080px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    font-size: 0.86rem;
    color: var(--text-muted);
}
.footer-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}
.footer-nav a {
    color: var(--text-muted);
}
.footer-nav a:hover {
    color: var(--accent-dark);
}
.footer-copy {
    font-size: 0.8rem;
}

@media (max-width: 640px) {
    .site-header .shell {
        flex-direction: column;
        align-items: flex-start;
    }
}