/* Iceberg dark tokens, as btk/themes/buildtall/assets/main.css names them. */
:root {
    --color-bg: #161821;
    --color-bg-subtle: #1e2132;
    --color-bg-highlight: #272c42;
    --color-fg: #c6c8d1;
    --color-fg-subtle: #6b7089;
    --color-fg-muted: #444b71;
    --color-primary: #84a0c6;
    --color-primary-hover: #95b1d4;
    --color-accent: #b4be82;
    --font-family: ui-sans-serif, system-ui, sans-serif;
    --shell-width: 80rem;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
}

body {
    background: var(--color-bg);
    color: var(--color-fg);
    font-family: var(--font-family);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--color-primary);
    text-decoration: none;
}
a:hover {
    color: var(--color-primary-hover);
}

.shell {
    max-width: var(--shell-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.band {
    background: var(--color-bg-subtle);
}
header.band {
    border-bottom: 1px solid var(--color-fg-muted);
    box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.3);
}
footer.band {
    border-top: 1px solid var(--color-fg-muted);
    padding: 2rem 0;
    margin-top: 4rem;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
}
.wordmark {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--color-fg);
    font-weight: 600;
    font-size: 1.5rem;
    letter-spacing: -0.025em;
}
.wordmark:hover {
    color: var(--color-fg);
    opacity: 0.8;
}
.nav-link {
    color: var(--color-fg-subtle);
    font-size: 0.875rem;
}
.nav-link:hover {
    color: var(--color-primary);
}

main {
    padding: 4rem 1.5rem;
}
h1 {
    font-size: 2.25rem;
    font-weight: 700;
    margin: 0 0 0.5rem;
}
h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 1.5rem 0 0.5rem;
}
.lead {
    color: var(--color-fg-subtle);
    font-size: 1.125rem;
    margin: 0 0 2rem;
}

.controls {
    border-collapse: collapse;
}
.controls th,
.controls td {
    text-align: left;
    padding: 0.25rem 1.5rem 0.25rem 0;
    border-bottom: 1px solid var(--color-fg-muted);
}
.controls th {
    color: var(--color-fg);
    font-weight: 600;
}
.controls td {
    color: var(--color-fg-subtle);
}

.about {
    max-width: 48rem;
}
.about p {
    color: var(--color-fg-subtle);
}

.button {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    background: var(--color-primary);
    color: var(--color-bg);
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: 0.375rem;
}
.button:hover {
    background: var(--color-primary-hover);
    color: var(--color-bg);
}

.foot {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    font-size: 0.875rem;
    color: var(--color-fg-subtle);
}
.foot p {
    margin: 0;
}
.strong {
    font-weight: 600;
}
.foot-links {
    display: flex;
    gap: 1.5rem;
}
.foot-links a {
    color: var(--color-fg-subtle);
}
.foot-links a:hover {
    color: var(--color-primary);
}

@media (min-width: 48rem) {
    .foot {
        flex-direction: row;
        justify-content: space-between;
    }
}

@media (pointer: coarse) {
    .keyboard-only {
        display: none;
    }
}