/* BergCraft Studio — warm mountain aesthetic */
:root {
  --bg:       #14120e;
  --surface:  #1f1c17;
  --border:   #2e2a23;
  --accent:   #e8b866;
  --accent2:  #c47c3e;
  --text:     #d4c9b8;
  --muted:    #7a7060;
  --heading:  #f0e8d9;
  --link:     #e8b866;
  --code-bg:  #1a1710;
  --tag-bg:   #28231a;
}

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

html { font-size: 17px; scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Georgia', 'Times New Roman', serif;
  line-height: 1.72;
  min-height: 100vh;
}

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

h1, h2, h3, h4 {
  font-family: -apple-system, 'Helvetica Neue', sans-serif;
  color: var(--heading);
  font-weight: 600;
  line-height: 1.25;
}

code, pre {
  font-family: 'Menlo', 'Consolas', monospace;
  font-size: 0.85rem;
  background: var(--code-bg);
  color: #c9b99a;
  border-radius: 4px;
  border: 1px solid var(--border);
}
code { padding: 0.15em 0.4em; }
pre { padding: 1.2rem 1.4rem; overflow-x: auto; line-height: 1.55; }
pre code { background: none; border: none; padding: 0; }

img { max-width: 100%; display: block; }

/* ── Layout ── */
.container { max-width: 780px; margin: 0 auto; padding: 0 1.4rem; }
.container-wide { max-width: 1040px; margin: 0 auto; padding: 0 1.4rem; }

/* ── Nav ── */
nav {
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky; top: 0; z-index: 50;
}
nav .inner {
  max-width: 1040px; margin: 0 auto;
  padding: 0 1.4rem;
  display: flex; align-items: center; gap: 2rem;
  height: 56px;
}
nav .logo {
  font-family: -apple-system, 'Helvetica Neue', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  color: var(--heading);
  letter-spacing: -0.01em;
}
nav .logo span { color: var(--accent); }
nav ul { list-style: none; display: flex; gap: 1.6rem; margin-left: auto; }
nav ul a { font-size: 0.88rem; color: var(--muted); font-family: -apple-system, sans-serif; }
nav ul a:hover { color: var(--text); text-decoration: none; }

/* ── Hero ── */
.hero {
  padding: 5rem 0 4rem;
  border-bottom: 1px solid var(--border);
}
.hero .eyebrow {
  font-size: 0.78rem;
  font-family: -apple-system, sans-serif;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.1rem;
}
.hero h1 {
  font-size: clamp(2.1rem, 5vw, 3rem);
  margin-bottom: 1.1rem;
  letter-spacing: -0.02em;
}
.hero .lead {
  font-size: 1.12rem;
  color: var(--text);
  max-width: 560px;
  margin-bottom: 2.2rem;
}
.hero-img {
  margin-top: 3rem;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border);
  max-height: 420px;
  width: 100%;
  object-fit: cover;
}

/* ── Buttons ── */
.btn {
  display: inline-block;
  padding: 0.6rem 1.4rem;
  border-radius: 6px;
  font-family: -apple-system, sans-serif;
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: opacity 0.15s;
}
.btn-primary {
  background: var(--accent);
  color: #14120e;
}
.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}
.btn:hover { opacity: 0.82; text-decoration: none; }
.btn + .btn { margin-left: 0.75rem; }

/* ── Features grid ── */
.features {
  padding: 4rem 0;
  border-bottom: 1px solid var(--border);
}
.features h2 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}
.features .sub { color: var(--muted); font-size: 0.95rem; margin-bottom: 2.5rem; }
.feat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.4rem;
}
.feat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.4rem;
}
.feat-card img { width: 40px; height: 40px; margin-bottom: 1rem; }
.feat-card h3 { font-size: 0.95rem; margin-bottom: 0.4rem; }
.feat-card p { font-size: 0.88rem; color: var(--muted); line-height: 1.55; }

/* ── Blog list ── */
.post-list { list-style: none; }
.post-list li { border-bottom: 1px solid var(--border); padding: 1.5rem 0; }
.post-list li:first-child { padding-top: 0; }
.post-meta {
  font-size: 0.8rem;
  font-family: -apple-system, sans-serif;
  color: var(--muted);
  margin-bottom: 0.35rem;
}
.post-list h3 { font-size: 1.1rem; margin-bottom: 0.3rem; }
.post-list h3 a { color: var(--heading); }
.post-list h3 a:hover { color: var(--accent); text-decoration: none; }
.post-list p { font-size: 0.9rem; color: var(--muted); }

/* ── Article ── */
.article-header { padding: 4rem 0 2.5rem; border-bottom: 1px solid var(--border); }
.article-header .tag {
  display: inline-block;
  background: var(--tag-bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 0.75rem;
  font-family: -apple-system, sans-serif;
  color: var(--accent);
  padding: 0.15rem 0.6rem;
  margin-bottom: 1rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.article-header h1 { font-size: clamp(1.6rem, 4vw, 2.3rem); margin-bottom: 0.7rem; }
.article-header .meta { font-size: 0.83rem; color: var(--muted); font-family: -apple-system, sans-serif; }
.article-hero { margin: 2.5rem 0; border-radius: 8px; overflow: hidden; border: 1px solid var(--border); }
.article-hero img { width: 100%; max-height: 380px; object-fit: cover; }

.article-body { padding: 2.5rem 0 4rem; }
.article-body h2 { font-size: 1.35rem; margin: 2.2rem 0 0.7rem; padding-top: 0.5rem; border-top: 1px solid var(--border); }
.article-body h3 { font-size: 1.05rem; margin: 1.5rem 0 0.5rem; color: var(--accent); }
.article-body p { margin-bottom: 1.2rem; }
.article-body ul, .article-body ol { margin: 0 0 1.2rem 1.5rem; }
.article-body li { margin-bottom: 0.4rem; }
.article-body blockquote {
  border-left: 3px solid var(--accent2);
  padding: 0.4rem 0 0.4rem 1.2rem;
  color: var(--muted);
  font-style: italic;
  margin: 1.4rem 0;
}
.article-body .callout {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 6px;
  padding: 1rem 1.2rem;
  margin: 1.4rem 0;
  font-size: 0.92rem;
}

/* ── Terminal screenshot ── */
.terminal-wrap {
  margin: 1.8rem 0;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.terminal-wrap img { width: 100%; display: block; }

/* ── Changelog ── */
.changelog-entry { padding: 2rem 0; border-bottom: 1px solid var(--border); }
.changelog-entry .version {
  display: inline-flex; align-items: center; gap: 0.6rem;
  margin-bottom: 0.8rem;
}
.changelog-entry .v-tag {
  font-size: 0.82rem;
  background: var(--tag-bg);
  border: 1px solid var(--accent2);
  color: var(--accent);
  padding: 0.12rem 0.6rem;
  border-radius: 4px;
  font-family: monospace;
}
.changelog-entry .date { font-size: 0.8rem; color: var(--muted); font-family: -apple-system, sans-serif; }
.changelog-entry h3 { font-size: 1rem; margin-bottom: 0.8rem; }
.changelog-entry ul { list-style: none; padding: 0; }
.changelog-entry ul li {
  padding: 0.18rem 0 0.18rem 1.2rem;
  position: relative;
  font-size: 0.91rem;
  color: var(--text);
}
.changelog-entry ul li::before {
  content: '+';
  position: absolute; left: 0;
  color: var(--accent); font-weight: 700;
}
.changelog-entry ul li.fix::before { content: '~'; color: #7fba8a; }
.changelog-entry ul li.break::before { content: '!'; color: #e07070; }

/* ── Footer ── */
footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
  margin-top: 4rem;
}
footer .inner {
  max-width: 1040px; margin: 0 auto; padding: 0 1.4rem;
  display: flex; flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}
footer .copy { font-size: 0.82rem; color: var(--muted); font-family: -apple-system, sans-serif; }
footer nav ul { display: flex; gap: 1.4rem; flex-wrap: wrap; }
footer nav ul a { font-size: 0.82rem; color: var(--muted); }
footer nav ul a:hover { color: var(--text); }

/* ── Section headers ── */
.section-header { padding: 3.5rem 0 2rem; }
.section-header h1 { font-size: 1.9rem; margin-bottom: 0.5rem; }
.section-header p { color: var(--muted); font-size: 0.95rem; }

/* ── Docs sidebar layout ── */
.docs-layout { display: flex; gap: 3rem; padding: 3rem 0 5rem; align-items: flex-start; }
.docs-sidebar {
  width: 200px; flex-shrink: 0;
  position: sticky; top: 72px;
}
.docs-sidebar ul { list-style: none; }
.docs-sidebar ul li { margin-bottom: 0.15rem; }
.docs-sidebar ul a { font-size: 0.85rem; color: var(--muted); font-family: -apple-system, sans-serif; display: block; padding: 0.2rem 0; }
.docs-sidebar ul a:hover, .docs-sidebar ul a.active { color: var(--accent); text-decoration: none; }
.docs-sidebar .nav-group { font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); margin: 1.2rem 0 0.4rem; font-family: -apple-system, sans-serif; }
.docs-content { flex: 1; min-width: 0; }
.docs-content h1 { font-size: 1.8rem; margin-bottom: 1rem; }
.docs-content h2 { font-size: 1.2rem; margin: 2rem 0 0.6rem; color: var(--heading); }
.docs-content h3 { font-size: 0.98rem; margin: 1.4rem 0 0.4rem; color: var(--accent); }
.docs-content p { margin-bottom: 1rem; }
.docs-content ul, .docs-content ol { margin: 0 0 1rem 1.4rem; }
.docs-content li { margin-bottom: 0.3rem; font-size: 0.95rem; }
.docs-content .callout {
  background: var(--surface); border: 1px solid var(--border);
  border-left: 3px solid var(--accent); border-radius: 6px;
  padding: 0.9rem 1.1rem; margin: 1.2rem 0; font-size: 0.9rem;
}

/* ── 404 ── */
.error-page { display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: calc(100vh - 120px); text-align: center; padding: 2rem; }
.error-page .code { font-size: 5rem; font-weight: 700; color: var(--surface); font-family: -apple-system, sans-serif; line-height: 1; margin-bottom: 1rem; }
.error-page h1 { font-size: 1.4rem; margin-bottom: 0.6rem; }
.error-page p { color: var(--muted); margin-bottom: 2rem; }

/* ── Responsive ── */
@media (max-width: 660px) {
  .docs-layout { flex-direction: column; }
  .docs-sidebar { width: 100%; position: static; }
  .feat-grid { grid-template-columns: 1fr; }
}