/* GreenCLI site. The app's own colors (src/styles/index.css): dark by
   default, light when the system asks for it. System fonts only. */

:root {
  --bg: #0a0e14;
  --bg-2: #0f141c;
  --bg-3: #19212c;
  --bg-code: #070a0f;
  --border: #212b37;
  --border-strong: #30404f;
  --text: #e6edf3;
  --text-2: #9aa7b4;
  --muted: #83909e;
  --accent: #01a982;
  --accent-hover: #16c79b;
  --accent-fg: #04130e;
  --accent-soft: rgba(1, 169, 130, 0.14);
  --danger: #f0533f;
  --warning: #f0a83c;
  --info: #4aa8ff;
  --info-soft: rgba(74, 168, 255, 0.1);
  --code: #16c79b;
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.45);
  --radius: 10px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  color-scheme: dark;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #ffffff;
    --bg-2: #f4f7f9;
    --bg-3: #e9eef2;
    --bg-code: #f4f7f9;
    --border: #d6dde3;
    --border-strong: #c2ccd4;
    --text: #16202a;
    --text-2: #44525e;
    --muted: #606c78;
    --accent: #017a5e;
    --accent-hover: #01654e;
    --accent-fg: #ffffff;
    --accent-soft: rgba(1, 122, 94, 0.12);
    --danger: #cf3520;
    --warning: #b5760a;
    --info: #0969da;
    --info-soft: rgba(9, 105, 218, 0.08);
    --code: #017357;
    --shadow: 0 10px 30px rgba(22, 32, 42, 0.12);
    color-scheme: light;
  }
}

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 var(--font);
  overflow-wrap: break-word;
  /* The footer stays at the bottom on a short page. */
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--accent);
  text-underline-offset: 2px;
}

a:hover {
  color: var(--accent-hover);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

h1,
h2,
h3,
h4 {
  line-height: 1.25;
  margin: 1.6em 0 0.6em;
}

h1 {
  font-size: 2.1rem;
  margin-top: 0.4em;
}

h2 {
  font-size: 1.6rem;
}

h3 {
  font-size: 1.2rem;
}

code {
  font-family: var(--mono);
  font-size: 0.88em;
  background: var(--bg-3);
  color: var(--code);
  padding: 0.1em 0.35em;
  border-radius: 4px;
  overflow-wrap: anywhere;
}

pre {
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  overflow-x: auto;
  line-height: 1.5;
}

pre code {
  background: none;
  color: var(--text);
  padding: 0;
  font-size: 0.88rem;
  overflow-wrap: normal;
}

hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 2.5em 0;
}

blockquote {
  margin: 1.2em 0;
  padding: 10px 16px;
  border-left: 3px solid var(--info);
  background: var(--info-soft);
  border-radius: 0 8px 8px 0;
}

blockquote p {
  margin: 0.4em 0;
}

.muted {
  color: var(--muted);
}

.wrap {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 16px;
}

.narrow {
  max-width: 720px;
}

@media (min-width: 700px) {
  .wrap {
    padding: 0 28px;
  }
}

.skip {
  position: absolute;
  left: -9999px;
}

.skip:focus {
  left: 16px;
  top: 8px;
  z-index: 10;
  background: var(--bg-2);
  padding: 8px 12px;
}

/* ── Header and footer ── */

.top {
  border-bottom: 1px solid var(--border);
  background: var(--bg-2);
}

.top-in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 24px;
  padding-top: 12px;
  padding-bottom: 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
}

.brand:hover {
  color: var(--text);
}

.brand-name {
  font-weight: 700;
  font-size: 1.15rem;
}

.brand-by {
  color: var(--muted);
  font-size: 0.85rem;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 18px;
}

.nav a {
  color: var(--text-2);
  text-decoration: none;
  font-size: 0.95rem;
  padding: 4px 0;
}

.nav a:hover,
.nav a[aria-current="page"] {
  color: var(--accent);
}

.nav a[aria-current="page"] {
  font-weight: 600;
}

@media (max-width: 699px) {
  .top-in {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav {
    gap: 2px 14px;
  }
}

/* On a phone the menu fits one line without GitHub (it is in the footer too). */
@media (max-width: 479px) {
  .nav .nav-gh {
    display: none;
  }
}

.foot {
  border-top: 1px solid var(--border);
  background: var(--bg-2);
  margin-top: 0;
  font-size: 0.92rem;
  color: var(--text-2);
}

.foot-in {
  padding-top: 24px;
  padding-bottom: 32px;
}

.foot p {
  margin: 0.4em 0;
}

/* ── Buttons ── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 8px;
  border: 1px solid var(--border-strong);
  background: var(--bg-3);
  color: var(--text);
  font-weight: 600;
  text-decoration: none;
  line-height: 1.2;
}

.btn:hover {
  border-color: var(--accent);
  color: var(--text);
}

.btn svg {
  width: 18px;
  height: 18px;
  flex: none;
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-fg);
}

.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: var(--accent-fg);
}

.btn-small {
  padding: 8px 14px;
  font-size: 0.92rem;
}

/* ── Landing page ── */

.hero {
  padding: 40px 0 48px;
  background:
    radial-gradient(ellipse 70% 60% at 85% 0%, var(--accent-soft), transparent 70%),
    var(--bg);
}

.hero-in {
  display: grid;
  gap: 32px;
}

.eyebrow {
  color: var(--accent);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  margin: 0;
}

.hero h1 {
  font-size: 2.2rem;
  margin: 0.3em 0 0.4em;
}

.lead {
  font-size: 1.12rem;
  color: var(--text-2);
  margin: 0 0 1.4em;
  max-width: 40em;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-meta {
  color: var(--muted);
  font-size: 0.92rem;
  margin: 1.2em 0 0;
}

.hero-shot a {
  display: block;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow);
  line-height: 0;
}

@media (min-width: 1000px) {
  .hero {
    padding: 64px 0 72px;
  }

  .hero-in {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: center;
    gap: 48px;
  }

  .hero h1 {
    font-size: 2.8rem;
  }
}

.band {
  padding: 48px 0 56px;
}

.band-alt {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.band h2 {
  margin-top: 0;
}

.section-lead {
  color: var(--text-2);
  margin: -0.2em 0 1.5em;
}

.features,
.cards {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.feature,
.card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
}

.band-alt .card {
  background: var(--bg);
}

.feature h3,
.card h3 {
  margin: 10px 0 6px;
  font-size: 1.08rem;
}

.feature p,
.card p {
  margin: 0;
  color: var(--text-2);
  font-size: 0.96rem;
}

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 9px;
  background: var(--accent-soft);
  color: var(--accent);
}

.feature-icon svg {
  width: 21px;
  height: 21px;
}

.card {
  display: block;
  color: var(--text);
  text-decoration: none;
}

.card:hover {
  border-color: var(--accent);
  color: var(--text);
}

/* Downloads */

.dl-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.dl-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.dl-card h3 {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.15rem;
}

.dl-card h3 svg {
  width: 22px;
  height: 22px;
  color: var(--accent);
}

.dl-sub {
  margin: -4px 0 2px;
  color: var(--text-2);
  font-size: 0.95rem;
}

.dl-file {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
  font-family: var(--mono);
  overflow-wrap: anywhere;
}

.dl-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.dl-card .btn {
  align-self: flex-start;
}

.all-downloads {
  margin: 20px 0 8px;
}

.tips {
  margin: 20px 0 0;
  padding-left: 1.2em;
  color: var(--text-2);
}

.tips li {
  margin: 0.45em 0;
}

.tips strong {
  color: var(--text);
}

/* Photo grid */

.gallery {
  display: grid;
  gap: 22px;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

.shot {
  margin: 0;
}

.shot a {
  display: block;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border-strong);
  line-height: 0;
  background: var(--bg-2);
  aspect-ratio: 16 / 10;
}

.shot a:hover {
  border-color: var(--accent);
}

/* Every photo is 16:10 except the cropped Settings one, which shows whole. */
.shot img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.shot figcaption {
  margin-top: 10px;
  font-size: 0.93rem;
  color: var(--text-2);
}

.shot figcaption strong {
  display: block;
  color: var(--text);
}

/* ── Guide pages ── */

.doc-layout {
  display: grid;
  gap: 32px;
  padding-top: 28px;
  padding-bottom: 64px;
}

.toc {
  display: none;
}

@media (min-width: 960px) {
  .doc-layout {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: 48px;
  }

  .toc {
    display: block;
    position: sticky;
    top: 16px;
    align-self: start;
    max-height: calc(100vh - 32px);
    overflow-y: auto;
    padding-right: 8px;
    font-size: 0.9rem;
  }

  .toc-mobile {
    display: none;
  }
}

.toc-title {
  margin: 0 0 8px;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.toc ul,
.toc-mobile ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.toc li,
.toc-mobile li {
  margin: 0;
}

.toc a,
.toc-mobile a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 8px;
  border-radius: 6px;
  color: var(--text-2);
  text-decoration: none;
  line-height: 1.35;
}

.toc a:hover,
.toc-mobile a:hover {
  background: var(--bg-3);
  color: var(--text);
}

.toc a svg,
.toc-mobile a svg {
  width: 16px;
  height: 16px;
  flex: none;
  color: var(--accent);
}

.toc .sub a,
.toc-mobile .sub a {
  padding-left: 22px;
  font-size: 0.86rem;
  color: var(--muted);
}

.toc-mobile {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-2);
  margin: 0 0 24px;
}

.toc-mobile summary {
  cursor: pointer;
  padding: 10px 14px;
  font-weight: 600;
}

.toc-mobile ul {
  padding: 0 6px 10px;
}

.doc {
  min-width: 0;
}

.doc h1 {
  margin-bottom: 0.5em;
}

.doc h2 {
  padding-top: 0.6em;
  border-top: 1px solid var(--border);
}

/* The guide's Markdown already has a rule (---) before each part. */
.doc hr + h2,
.doc .toc-mobile + h2 {
  border-top: 0;
}

.intro hr {
  display: none;
}

.doc h2,
.doc h3,
.topic {
  scroll-margin-top: 16px;
}

.anchor {
  margin-left: 8px;
  color: var(--muted);
  text-decoration: none;
  font-weight: 400;
  opacity: 0;
}

h2:hover .anchor,
h3:hover .anchor,
.anchor:focus {
  opacity: 1;
}

.intro {
  color: var(--text-2);
  font-size: 1.05rem;
}

.doc li {
  margin: 0.3em 0;
}

.doc li > ul,
.doc li > ol {
  margin: 0.3em 0;
}

.table-wrap {
  overflow-x: auto;
  margin: 1.2em 0;
  border: 1px solid var(--border);
  border-radius: 8px;
}

table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.93rem;
}

th,
td {
  text-align: left;
  vertical-align: top;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
}

th {
  background: var(--bg-2);
  font-weight: 600;
}

tr:last-child td {
  border-bottom: 0;
}

td code {
  overflow-wrap: normal;
  white-space: nowrap;
}

.doc a.zoom {
  display: block;
  line-height: 0;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
}

.doc-source {
  margin-top: 3em;
  color: var(--muted);
  font-size: 0.9rem;
}

/* Help topics */

.topic h2 {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.topic h2 .feature-icon {
  width: 34px;
  height: 34px;
}

.topic h2 .feature-icon svg {
  width: 19px;
  height: 19px;
}

.summary {
  color: var(--text-2);
  font-size: 1.05rem;
  margin-top: -0.2em;
}

.note {
  margin: 1em 0;
  padding: 10px 16px;
  border-left: 3px solid var(--info);
  background: var(--info-soft);
  border-radius: 0 8px 8px 0;
}

.note p {
  margin: 0;
}

.os-switch {
  display: none;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin: 0 0 24px;
  color: var(--text-2);
  font-size: 0.95rem;
}

.js .os-switch {
  display: flex;
}

.os-switch button {
  font: inherit;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: var(--bg-2);
  color: var(--text-2);
  cursor: pointer;
}

.os-switch button[aria-pressed="true"] {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-fg);
}

.os-label {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
  margin: 1.2em 0 0;
}

/* Without the script both Mac and Windows lines show, with a label. */
.js .os-mac,
.js .os-win,
.js .os-label {
  display: none;
}

.js[data-os="mac"] .os-mac,
.js[data-os="win"] .os-win {
  display: block;
}

/* ── Photo viewer ── */

.lightbox {
  width: 100vw;
  height: 100vh;
  max-width: none;
  max-height: none;
  margin: 0;
  padding: 0;
  border: 0;
  background: rgba(5, 8, 12, 0.98);
  color: #e6edf3;
}

.lightbox::backdrop {
  background: rgba(5, 8, 12, 0.6);
}

.lightbox[open] {
  display: flex;
  flex-direction: column;
}

.lb-stage {
  flex: 1;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 56px 16px 8px;
}

.lb-img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: 6px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6);
}

.lb-caption {
  margin: 0;
  padding: 8px 16px 18px;
  text-align: center;
  font-size: 0.95rem;
  color: #c9d3dc;
}

.lb-btn {
  position: absolute;
  z-index: 1;
  width: 44px;
  height: 44px;
  border-radius: 999px;
  border: 1px solid #30404f;
  background: rgba(15, 20, 28, 0.85);
  color: #e6edf3;
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
}

.lb-btn:hover {
  border-color: #01a982;
}

.lb-close {
  top: 8px;
  right: 12px;
}

.lb-prev,
.lb-next {
  top: 50%;
  transform: translateY(-50%);
}

.lb-prev {
  left: 12px;
}

.lb-next {
  right: 12px;
}

@media (max-width: 699px) {
  .lb-prev,
  .lb-next {
    top: auto;
    bottom: 8px;
    transform: none;
  }

  .lb-caption {
    padding: 8px 64px 18px;
  }
}