/*
 * Copyright 2026 Raban Heller
 * SPDX-License-Identifier: Apache-2.0
 *
 * Shared styles for the shinylaunchR site (themakR / Hugo Coder identity):
 * #fafafa / #212121 surfaces, suite blue accent, Inter + JetBrains Mono.
 */

:root {
  --bg: #fafafa;
  --surface: #ffffff;
  --code-bg: #e9e9e9;
  --text: #212121;
  --text-dim: #5a5a5a;
  --border: #e2e2e2;
  --accent: #1565c0;
  --accent-contrast: #ffffff;
  --heading: #212121;
  --font-ui: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Consolas, monospace;
  --radius: 0.375rem;
}
html[data-theme='dark'] {
  --bg: #212121;
  --surface: #2b2b2b;
  --code-bg: #2b2b2b;
  --text: #dadada;
  --text-dim: #a6a6a6;
  --border: #4f4f4f;
  --accent: #42a5f5;
  --heading: #ffffff;
}
@media (prefers-color-scheme: dark) {
  html[data-theme='auto'] {
    --bg: #212121;
    --surface: #2b2b2b;
    --code-bg: #2b2b2b;
    --text: #dadada;
    --text-dim: #a6a6a6;
    --border: #4f4f4f;
    --accent: #42a5f5;
    --heading: #ffffff;
  }
}

* {
  box-sizing: border-box;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}
h1,
h2,
h3 {
  color: var(--heading);
  line-height: 1.25;
}
code,
pre {
  font-family: var(--font-mono);
}
:not(pre) > code {
  background: var(--code-bg);
  padding: 0.12em 0.32em;
  border-radius: 4px;
  font-size: 0.9em;
}
pre {
  background: var(--code-bg);
  padding: 1rem 1.1rem;
  border-radius: var(--radius);
  overflow: auto;
  font-size: 0.85rem;
  line-height: 1.5;
}

/* ---- navbar (flat coder bar, hex far left) ---- */
.navbar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: -0.02em;
  font-size: 1.05rem;
  color: var(--heading);
}
.brand a {
  color: inherit;
}
.brand a:hover {
  text-decoration: none;
}
.brand svg {
  width: 32px;
  height: 32px;
}
.navbar .spacer {
  flex: 1;
}
.navbar a.nav {
  color: var(--text-dim);
  font-size: 0.95rem;
}
.navbar a.nav:hover {
  color: var(--accent);
  text-decoration: none;
}
.lightswitch {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-dim);
  border-radius: var(--radius);
  padding: 0.3rem 0.55rem;
  cursor: pointer;
  font: inherit;
  font-size: 0.85rem;
}
.lightswitch:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.wrap {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ---- hero ---- */
.hero {
  text-align: center;
  padding: 3.5rem 1.25rem 2.5rem;
}
.hero svg {
  width: 96px;
  height: 96px;
}
.hero h1 {
  font-size: 2.4rem;
  margin: 1rem 0 0.4rem;
}
.hero p.tagline {
  font-size: 1.2rem;
  color: var(--text-dim);
  margin: 0 auto;
  max-width: 640px;
}
.cta {
  margin-top: 1.6rem;
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
}
.btn {
  display: inline-block;
  padding: 0.6rem 1.15rem;
  border-radius: var(--radius);
  font-weight: 500;
  border: 1px solid var(--accent);
}
.btn.primary {
  background: var(--accent);
  color: var(--accent-contrast);
}
.btn.primary:hover {
  text-decoration: none;
  opacity: 0.92;
}
.btn.ghost {
  color: var(--accent);
}
.btn.ghost:hover {
  text-decoration: none;
  background: var(--code-bg);
}

section {
  padding: 1.5rem 0;
}
section h2 {
  font-size: 1.5rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.4rem;
}
.families {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}
.card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  background: var(--surface);
}
.card h3 {
  margin: 0 0 0.4rem;
  font-size: 1.1rem;
}
.card p {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.95rem;
}

/* ---- article (getting-started guide) ---- */
.article {
  padding: 2.5rem 0 1rem;
}
.article h1 {
  font-size: 2rem;
  margin: 0 0 0.5rem;
}
.article h2 {
  font-size: 1.4rem;
  margin-top: 2rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.35rem;
}
.article ul,
.article ol {
  padding-left: 1.4rem;
}
.article li {
  margin: 0.35rem 0;
}
.article .lead {
  font-size: 1.1rem;
  color: var(--text-dim);
}
.article .note {
  font-size: 0.95rem;
  color: var(--text-dim);
  border-left: 3px solid var(--accent);
  padding: 0.25rem 0 0.25rem 1rem;
  margin: 1.25rem 0;
}

footer {
  border-top: 1px solid var(--border);
  margin-top: 2rem;
  padding: 1.5rem 1.25rem 2.5rem;
  text-align: center;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
}