/* SPDX-License-Identifier: Apache-2.0
 * Copyright 2026 The offlinecv Authors
 *
 * Styling for the static content pages under public/ (/how-it-works/, /faq/,
 * /privacy/, /open-source/).
 *
 * These pages are deliberately plain HTML, outside the React app and outside
 * the Tailwind build: they exist to be readable with no JavaScript executed,
 * because the three app entries render into an empty `<div id="root">` and give
 * a crawler nothing but a <title> until it runs the bundle. That constraint is
 * also why this file cannot import `@design-tokens` — it is copied verbatim out
 * of public/, never processed by Vite.
 *
 * The custom properties below therefore MIRROR the light/dark values in
 * src/design-system/styles/tokens.css rather than deriving from them. That
 * duplication is the cost of the no-JS requirement; if the palette there moves,
 * these move by hand. Only the handful of tokens these pages actually use are
 * copied — not the whole file.
 */

:root {
  color-scheme: light dark;

  --color-bg-base: #f8fafc;
  --color-bg-card: #ffffff;
  --color-bg-subtle: #f1f5f9;
  --color-text-primary: #0f172a;
  --color-text-secondary: #334155;
  --color-text-tertiary: #475569;
  --color-border-light: #e2e8f0;
  --color-border-default: #cbd5e1;
  --color-accent-primary: #1a56db;
  --color-accent-primary-hover: #1d4ed8;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg-base: #0f172a;
    --color-bg-card: #1e293b;
    --color-bg-subtle: #334155;
    --color-text-primary: #f1f5f9;
    --color-text-secondary: #cbd5e1;
    --color-text-tertiary: #a8b6c8;
    --color-border-light: #334155;
    --color-border-default: #475569;
    --color-accent-primary: #7bb0fa;
    --color-accent-primary-hover: #93c5fd;
  }
}

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

body {
  margin: 0;
  padding: 2.5rem 1.25rem 4rem;
  background: var(--color-bg-base);
  color: var(--color-text-secondary);
  font-family:
    ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.65;
}

.wrap {
  max-width: 44rem;
  margin: 0 auto;
}

/* Skip link — visible only on keyboard focus. */
.skip {
  position: absolute;
  left: -9999px;
}

.skip:focus {
  position: static;
  display: inline-block;
  margin-bottom: 1rem;
}

h1,
h2,
h3 {
  color: var(--color-text-primary);
  line-height: 1.25;
  margin: 2.25rem 0 0.75rem;
  text-wrap: balance;
}

h1 {
  font-size: clamp(1.75rem, 1.2rem + 2vw, 2.5rem);
  margin-top: 0;
}

h2 {
  font-size: 1.35rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border-light);
}

h3 {
  font-size: 1.075rem;
}

p,
ul,
ol,
table {
  margin: 0 0 1rem;
}

ul,
ol {
  padding-left: 1.25rem;
}

li {
  margin-bottom: 0.4rem;
}

a {
  color: var(--color-accent-primary);
  text-underline-offset: 0.15em;
}

a:hover,
a:focus-visible {
  color: var(--color-accent-primary-hover);
}

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

code {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.875em;
  background: var(--color-bg-subtle);
  border-radius: 0.25rem;
  padding: 0.1em 0.35em;
  overflow-wrap: anywhere;
}

.lede {
  font-size: 1.125rem;
  color: var(--color-text-tertiary);
  margin-bottom: 2rem;
}

/* Nav rows: the site header and footer on every content page. Content pages are
 * the only internally-linked surface a crawler can follow without running JS,
 * so every one of them links to every other one and back into the app. */
.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  font-size: 0.9375rem;
}

.nav--top {
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--color-border-light);
}

.nav--bottom {
  margin-top: 3rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--color-border-light);
  color: var(--color-text-tertiary);
}

.nav strong {
  font-weight: 600;
}

.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-light);
  border-radius: 0.75rem;
  padding: 1.25rem 1.5rem;
  margin: 0 0 1.5rem;
}

/* A card supplies its own padding and rule, so the first and last children drop
 * the margins (and, for an h2, the section rule) they carry in flowing text. */
.card > :first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

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

.cta {
  display: inline-block;
  background: var(--color-accent-primary);
  color: #ffffff;
  font-weight: 600;
  text-decoration: none;
  border-radius: 0.5rem;
  padding: 0.7rem 1.4rem;
  margin: 0.5rem 0 1.5rem;
}

@media (prefers-color-scheme: dark) {
  .cta {
    color: #0f172a;
  }
}

.cta:hover,
.cta:focus-visible {
  background: var(--color-accent-primary-hover);
}

/* Tables scroll inside their own box rather than widening the page. */
.table-scroll {
  overflow-x: auto;
  margin-bottom: 1.25rem;
}

table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.9375rem;
}

th,
td {
  text-align: left;
  vertical-align: top;
  padding: 0.55rem 0.75rem;
  border-bottom: 1px solid var(--color-border-light);
}

th {
  color: var(--color-text-primary);
  font-weight: 600;
  border-bottom-color: var(--color-border-default);
  white-space: nowrap;
}