/* Shared Page Styling for Simple Pages (index, forms, static articles) */

:root {
    color-scheme: dark light;

    --color-bg-primary: #1a1a1a;
    --color-bg-secondary: #252525;
    --color-bg-tertiary: #2f2f2f;
    --color-text-primary: #e8e8e8;
    --color-text-secondary: #b8b8b8;
    --color-text-muted: #888888;
    --color-accent-primary: #6b9bd1;
    --color-accent-hover: #85aede;
    --color-on-accent: #121212;
    --color-link: #6b9bd1;
    --color-link-hover: #85aede;
    --color-border: #3a3a3a;
    --color-shadow: rgba(0, 0, 0, 0.3);

    --font-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-scripture: Georgia, "Crimson Text", "Times New Roman", serif;
    --font-mono: "SF Mono", Monaco, "Cascadia Code", "Courier New", monospace;

    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;

    --content-max-width: 820px;
    --border-radius: 8px;
    --border-radius-sm: 4px;
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
}

@media (prefers-color-scheme: light) {
    :root {
        --color-bg-primary: #f7f5f0;
        --color-bg-secondary: #ffffff;
        --color-bg-tertiary: #ece9e1;
        --color-text-primary: #1f1f1f;
        --color-text-secondary: #4a4a4a;
        --color-text-muted: #6b6b6b;
        --color-accent-primary: #2b5c94;
        --color-accent-hover: #1d4574;
        --color-on-accent: #ffffff;
        --color-link: #2b5c94;
        --color-link-hover: #1d4574;
        --color-border: #d6d1c4;
        --color-shadow: rgba(0, 0, 0, 0.1);
    }
}

* {
    box-sizing: border-box;
}

[hidden] {
    display: none !important;
}

html {
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    margin: 0 auto;
    padding: var(--space-md) max(var(--space-md), env(safe-area-inset-right)) var(--space-2xl) max(var(--space-md), env(safe-area-inset-left));
    max-width: calc(var(--content-max-width) + 2 * var(--space-md));
    font-family: var(--font-ui);
    line-height: 1.6;
    font-size: 16px;
    overflow-wrap: break-word;
}

h1, h2, h3, h4 {
    color: var(--color-text-primary);
    line-height: 1.25;
    margin: 1.5rem 0 1rem;
}

h1 {
    font-size: clamp(1.6rem, 5vw + 0.5rem, 2.4rem);
}

h2 {
    font-size: clamp(1.4rem, 4vw + 0.4rem, 2rem);
    border-bottom: 2px solid var(--color-border);
    padding-bottom: 0.5rem;
}

a {
    color: var(--color-link);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-link-hover);
    text-decoration: underline;
}

:focus-visible {
    outline: 2px solid var(--color-accent-primary);
    outline-offset: 2px;
}

/* Top navigation: a wrapping row of pill links */
header {
    margin-left: -0.75rem; /* pill padding lines the text up with the page edge */
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs) var(--space-sm);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--color-border);
}

header a {
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    font-weight: 500;
    font-size: 0.95rem;
    white-space: nowrap;
}

header a:hover {
    background-color: var(--color-bg-tertiary);
    text-decoration: none;
}

form {
    background-color: var(--color-bg-secondary);
    padding: var(--space-lg);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    margin: var(--space-lg) 0;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

input[type=text] {
    width: 100%;
    min-height: 44px;
    padding: 0.6rem 0.75rem;
    margin: 0.5rem 0 1rem 0;
    font-size: 1rem; /* 16px minimum stops iOS zooming into the field */
    font-family: var(--font-ui);
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    transition: border-color var(--transition-fast);
}

input[type=text]:focus {
    outline: none;
    border-color: var(--color-accent-primary);
}

/* Radio + text wrapped in a label so the whole pill is the tap target */
.choice {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    min-height: 44px;
    margin: 0 var(--space-md) 0 0;
    font-weight: 500;
    cursor: pointer;
}

input[type=radio] {
    margin: 0;
    width: 1.1rem;
    height: 1.1rem;
    accent-color: var(--color-accent-primary);
}

.form-row {
    margin-bottom: var(--space-md);
}

input[type=submit], button {
    background-color: var(--color-accent-primary);
    color: var(--color-on-accent);
    border: none;
    min-height: 44px;
    padding: 0.6rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-ui);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: background-color var(--transition-fast), transform var(--transition-fast);
}

input[type=submit]:hover, button:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-1px);
}

hr {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: var(--space-xl) 0;
}

p {
    margin: 1rem 0;
    color: var(--color-text-secondary);
}

b, strong {
    color: var(--color-text-primary);
}

pre {
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    padding: var(--space-md);
    overflow-x: auto; /* scroll the code block, never the page */
    -webkit-overflow-scrolling: touch;
    font-size: 0.85rem;
    line-height: 1.5;
    max-width: 100%;
}

code {
    font-family: var(--font-mono);
}

/* wide tables scroll inside their own box instead of widening the page */
.table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

table {
    border-collapse: collapse;
    width: 100%;
}

td, th {
    text-align: left;
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid var(--color-border);
}

@media (max-width: 480px) {
    form {
        padding: var(--space-md);
    }

    /* full-width submit buttons are easier to hit with a thumb */
    input[type=submit] {
        width: 100%;
    }

    pre {
        font-size: 0.78rem;
    }
}