/*
 * Copyright 2026 Jason Figge
 *
 * This file is part of YamlHippo.
 *
 * YamlHippo is free software: you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free
 * Software Foundation, either version 3 of the License, or (at your option)
 * any later version.
 *
 * YamlHippo is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with YamlHippo. If not, see <https://www.gnu.org/licenses/>.
 */

/* YamlHippo — guide.css
 *
 * The user guide (docs/index.html). Loaded after app.css, so the guide gets
 * the app's two themes, its header and its buttons without copying a single
 * colour. Everything here is scoped to body.yh-guide.
 *
 * app.css makes <body> a full-height flex box that never scrolls (the app
 * scrolls inside its panes); the guide is a document, so that is undone first.
 */

/* ── Page ───────────────────────────────────────────────────────────────── */

html:has(body.yh-guide) {
  height: auto;
  scroll-padding-top: 16px;
}

body.yh-guide {
  display: block;
  height: auto;
  overflow: visible;
  font-size: 15px;
  line-height: 1.6;
}

.yh-guide a {
  color: var(--accent);
}

.yh-guide .yh-header a.yh-brand {
  text-decoration: none;
}

/* ── Layout: contents beside the prose, above it on a narrow screen ────── */

.yh-guide-layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 48px;
  align-items: start;
  max-width: 1120px;
  margin: 0 auto;
  padding: 32px 24px 80px;
}

.yh-guide-toc {
  position: sticky;
  top: 24px;
  max-height: calc(100vh - 48px);
  overflow-y: auto;
  font-size: 14px;
  line-height: 1.45;
}

.yh-guide-toc h2 {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.yh-guide-toc ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.yh-guide-toc a {
  display: block;
  padding: 4px 0 4px 10px;
  border-left: 2px solid var(--surface-0);
  color: var(--subtext);
  text-decoration: none;
}

.yh-guide-toc a:hover {
  border-left-color: var(--brand);
  color: var(--text);
}

.yh-guide-body {
  max-width: 76ch;
}

/* ── Prose ──────────────────────────────────────────────────────────────── */

.yh-guide-body h1 {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 30px;
  line-height: 1.2;
}

.yh-guide-lede {
  margin: 0 0 8px;
  color: var(--subtext);
  font-size: 17px;
}

.yh-guide-body section {
  padding-top: 8px;
}

.yh-guide-body h2 {
  margin: 40px 0 12px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--surface-0);
  font-size: 22px;
  line-height: 1.3;
}

.yh-guide-body h3 {
  margin: 28px 0 8px;
  font-size: 17px;
}

.yh-guide-body p,
.yh-guide-body ul,
.yh-guide-body ol {
  margin: 0 0 14px;
}

.yh-guide-body li {
  margin-bottom: 4px;
}

.yh-guide-body code {
  padding: 1px 4px;
  border-radius: 4px;
  background: var(--mantle);
  font-family: var(--mono);
  font-size: 0.88em;
}

.yh-guide-body pre {
  margin: 0 0 16px;
  padding: 12px 14px;
  overflow-x: auto;
  border: 1px solid var(--surface-0);
  border-radius: 8px;
  background: var(--mantle);
  font-family: var(--mono);
  font-size: var(--code-size);
  line-height: var(--code-line);
}

.yh-guide-body pre code {
  padding: 0;
  background: none;
  font-size: inherit;
}

.yh-guide-body kbd {
  display: inline-block;
  min-width: 1.6em;
  padding: 0 5px;
  border: 1px solid var(--surface-2);
  border-bottom-width: 2px;
  border-radius: 4px;
  background: var(--mantle);
  font-family: var(--sans);
  font-size: 0.85em;
  line-height: 1.5;
  text-align: center;
}

/* ── Tables ─────────────────────────────────────────────────────────────── */

/* The wrapper scrolls sideways, so a wide table never widens the page. */
.yh-guide-table {
  margin: 0 0 18px;
  overflow-x: auto;
}

.yh-guide-body table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  line-height: 1.5;
}

.yh-guide-body th,
.yh-guide-body td {
  padding: 7px 10px;
  border: 1px solid var(--surface-1);
  text-align: left;
  vertical-align: top;
}

.yh-guide-body th {
  background: var(--mantle);
  font-weight: 600;
}

.yh-guide-body td code {
  white-space: nowrap;
}

/* The Diff marks, in the colours the Diff tab draws them in. */
.yh-guide-mark {
  font-family: var(--mono);
  font-weight: 700;
}

.yh-guide-mark--missing { color: var(--diff-missing-ink); }
.yh-guide-mark--added { color: var(--diff-added-ink); }
.yh-guide-mark--changed { color: var(--diff-changed-ink); }
.yh-guide-mark--type { color: var(--diff-type-ink); }

/* ── Footer ─────────────────────────────────────────────────────────────── */

.yh-guide-footer {
  margin-top: 56px;
  padding-top: 16px;
  border-top: 1px solid var(--surface-0);
  color: var(--muted);
  font-size: 13px;
}

/* ── Narrow screens ─────────────────────────────────────────────────────── */

@media (max-width: 800px) {
  .yh-guide-layout {
    display: block;
    padding: 20px 16px 60px;
  }

  .yh-guide-toc {
    position: static;
    max-height: none;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--surface-0);
  }

  .yh-guide .yh-tagline {
    display: none;
  }
}

@media (max-width: 560px) {
  .yh-guide .yh-header-actions .yh-btn span {
    display: none;
  }
}