/* SPDX-License-Identifier: LicenseRef-PolyForm-Internal-Use-1.0.0 */
/* Copyright (C) 2006-2026 DIY Accounting Limited */

/* developer.css: the flat house style of diyaccounting.co.uk, with light and dark tokens. */

:root {
  --color-brand-primary: #2c5aa0;
  --color-text-primary: #333;
  --color-text-secondary: #666;
  --color-background: #f9f9f9;
  --color-surface: #fff;
  --color-border: #ddd;
  --color-code-background: #f1f3f5;
  --color-focus: #005ea5;
  --font-family-base: Arial, sans-serif;
  --spacing-sm: 0.5em;
  --spacing-md: 1em;
  --spacing-lg: 1.5em;
  --radius-md: 6px;
  --shadow-md: 0 2px 10px rgba(0, 0, 0, 0.1);
  --max-width-content: 800px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-brand-primary: #8ab4f8;
    --color-text-primary: #e8eaed;
    --color-text-secondary: #b0b6bd;
    --color-background: #16181d;
    --color-surface: #20242b;
    --color-border: #3a404a;
    --color-code-background: #2a2f38;
    --color-focus: #8ab4f8;
    --shadow-md: none;
  }
}

:root[data-theme="dark"] {
  --color-brand-primary: #8ab4f8;
  --color-text-primary: #e8eaed;
  --color-text-secondary: #b0b6bd;
  --color-background: #16181d;
  --color-surface: #20242b;
  --color-border: #3a404a;
  --color-code-background: #2a2f38;
  --color-focus: #8ab4f8;
  --shadow-md: none;
}

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

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: #000;
  color: #fff;
  padding: 8px;
  z-index: 100;
}

.skip-link:focus {
  top: 0;
}

body {
  font-family: var(--font-family-base);
  background-color: var(--color-background);
  color: var(--color-text-primary);
  line-height: 1.5;
  padding: var(--spacing-md);
  max-width: var(--max-width-content);
  margin: 0 auto;
}

h1 {
  font-size: 2.2em;
  color: var(--color-brand-primary);
  text-align: center;
  margin-bottom: 0.3em;
}

h2 {
  color: var(--color-brand-primary);
  margin-bottom: var(--spacing-sm);
}

header {
  margin-bottom: var(--spacing-lg);
}

.subtitle,
.nav {
  text-align: center;
  color: var(--color-text-secondary);
}

a {
  color: var(--color-brand-primary);
}

a:focus,
summary:focus {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

p a,
li a {
  text-decoration: underline;
}

.panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.panel p,
.panel ul {
  margin-bottom: var(--spacing-md);
}

.panel ul {
  padding-left: 1.5em;
}

.panel li {
  margin-bottom: var(--spacing-sm);
}

.panel > :last-child {
  margin-bottom: 0;
}

code,
pre {
  font-family: ui-monospace, Menlo, Consolas, monospace;
  font-size: 0.9em;
  background: var(--color-code-background);
  border-radius: 4px;
}

code {
  padding: 0.1em 0.3em;
  overflow-wrap: anywhere;
}

pre {
  padding: var(--spacing-md);
  overflow-x: auto;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  margin-bottom: var(--spacing-md);
}

pre code {
  padding: 0;
  background: none;
}

details.tool {
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-sm) 0;
}

details.tool > p {
  margin: var(--spacing-sm) 0;
}

summary {
  cursor: pointer;
}

table {
  border-collapse: collapse;
  width: 100%;
  margin-bottom: var(--spacing-md);
  display: block;
  overflow-x: auto;
}

th,
td {
  border: 1px solid var(--color-border);
  padding: 0.3em 0.6em;
  text-align: left;
  vertical-align: top;
}

.tag {
  font-size: 0.75em;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 0.1em 0.6em;
  margin-left: 0.5em;
}

footer {
  text-align: center;
  color: var(--color-text-secondary);
  font-size: 0.9em;
  margin-top: var(--spacing-lg);
}