:root {
    color-scheme: light;
    font-family: system-ui, sans-serif;
    color: #18212f;
    background: #f5f7fa;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-width: 320px;
}

.site-shell {
    width: min(100% - 2rem, 68rem);
    margin: 0 auto;
}

.site-header {
    padding: 1.5rem 0;
    border-bottom: 1px solid #d9e0e8;
}

.site-brand {
    color: inherit;
    font-size: 1.125rem;
    font-weight: 700;
    text-decoration: none;
}

.site-brand:focus-visible {
    outline: 3px solid #1769aa;
    outline-offset: 4px;
}

.welcome {
    max-width: 44rem;
    padding: clamp(3rem, 10vw, 7rem) 0;
}

.eyebrow {
    color: #475569;
    font-size: 0.875rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.welcome h1 {
    margin: 0.5rem 0;
    font-size: clamp(2.25rem, 7vw, 4rem);
    line-height: 1.1;
}

#config-status {
    color: #475569;
    line-height: 1.6;
}

.site-footer {
    padding: 1.5rem 0;
    border-top: 1px solid #d9e0e8;
    color: #475569;
    line-height: 1.6;
}

.site-footer a,
.credits-list a {
    color: #145b96;
}

.site-footer a:focus-visible,
.credits-list a:focus-visible {
    outline: 3px solid #1769aa;
    outline-offset: 3px;
}

.credits-page {
    padding: 2rem 0 4rem;
}

.credits-page h1 {
    font-size: clamp(2rem, 6vw, 3rem);
    line-height: 1.15;
}

.credits-list {
    display: grid;
    gap: 1rem;
    margin: 2rem 0;
    padding: 0;
    list-style: none;
}

.credits-list li {
    padding: 1rem;
    border: 1px solid #d9e0e8;
    border-radius: 0.5rem;
    background: #fff;
}