/* plantoir.app
 *
 * One stylesheet for every page. The palette is the app's own: warm paper and
 * soil rather than white and blue-black, so the site and the product look like
 * the same thing. Both colour schemes are defined here; the page follows
 * whatever the visitor's computer is set to, and so do the screenshots.
 */

:root {
  color-scheme: light dark;

  --paper:      #F7EEDA;
  --paper-deep: #F0E3C9;
  --card:       #FCF8EE;
  --rule:       #DFD4B8;
  --ink:        #2B2A24;
  --ink-soft:   #6E6858;
  --green:      #3E8C26;
  --green-deep: #2D6620;

  --shadow: 0 1px 2px rgba(43, 42, 36, .06), 0 8px 24px rgba(43, 42, 36, .08);
}

/* Dark mode. Warm near-black rather than blue-black, so the page still reads
   as soil and paper. Greens lighten because the roles invert: --green-deep
   is used for headings and links, which now sit on a dark background. */
@media (prefers-color-scheme: dark) {
  :root {
    --paper:      #1C1A15;
    --paper-deep: #252118;
    --card:       #24211A;
    --rule:       #3D382C;
    --ink:        #EDE7D6;
    --ink-soft:   #A8A08C;
    --green:      #A3DD87;
    --green-deep: #86CC66;

    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .35);
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  padding: 0 24px 96px;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 620px; margin: 0 auto; }

/* Keyboard users must be able to see where they are. */
a:focus-visible,
.dl:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 3px;
  border-radius: 4px;
}

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

.skip-link:focus {
  left: 50%;
  transform: translateX(-50%);
  top: 12px;
  z-index: 10;
  background: var(--card);
  border: 1px solid var(--green);
  border-radius: 8px;
  padding: 8px 16px;
  color: var(--green-deep);
}

/* ---------- Top bar ---------- */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 0 0;
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 17px;
  font-weight: 600;
  color: var(--green-deep);
  text-decoration: none;
}

.brand img { width: 26px; height: 26px; border-radius: 6px; display: block; }

.nav {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 15.5px;
}

.nav a {
  color: var(--ink-soft);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1.5px solid transparent;
}

.nav a:hover { color: var(--green-deep); }

.nav a[aria-current="page"] {
  color: var(--green-deep);
  border-bottom-color: var(--green);
}

/* On the front page the mark appears full size just below, so the bar
   carries navigation alone rather than saying the name twice. */
.home .brand { display: none; }
.home .topbar { justify-content: center; }

/* ---------- Masthead ---------- */

header.hero { padding: 66px 0 0; text-align: center; }

header.hero img.mark {
  width: 104px; height: 104px;
  border-radius: 23px;
  display: block; margin: 0 auto 26px;
}

h1 {
  margin: 0;
  font-size: 46px;
  line-height: 1.1;
  font-weight: 600;
  letter-spacing: -0.022em;
  color: var(--green-deep);
}

/* The three-part line is the promise; the sentence under it explains the
   promise. So the first is larger and in the ink the headings use, and the
   second stays quieter — two paragraphs at the same weight would read as one
   long tagline that repeats itself. */
.headline {
  margin: 18px auto 0;
  max-width: 520px;
  font-size: 23px;
  line-height: 1.45;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.tagline {
  margin: 14px auto 0;
  max-width: 460px;
  font-size: 18px;
  line-height: 1.5;
  color: var(--ink-soft);
}

/* Inner pages: a title and a standfirst, without the large mark. */

.page-head { padding: 52px 0 0; }

.page-head h1 { font-size: 38px; }

.page-head .standfirst {
  margin: 16px 0 0;
  font-size: 20px;
  line-height: 1.5;
  color: var(--ink-soft);
}

/* ---------- Rules and sections ---------- */

.rule {
  height: 1px;
  background: var(--rule);
  border: 0;
  margin: 56px 0;
}

h2 {
  margin: 0 0 18px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--green-deep);
}

h3 {
  margin: 32px 0 8px;
  font-size: 19px;
  font-weight: 600;
  color: var(--ink);
}

h3:first-child { margin-top: 0; }

p { margin: 0 0 18px; }
p:last-child { margin-bottom: 0; }

em { font-style: italic; }
strong { font-weight: 600; }

a { color: var(--green-deep); text-decoration-thickness: 1px; text-underline-offset: 3px; overflow-wrap: break-word; }
a:hover { color: var(--green); }

ul.plain { margin: 0 0 18px; padding-left: 22px; }
ul.plain li { margin-bottom: 8px; }
ul.plain li:last-child { margin-bottom: 0; }

.lede { font-size: 19px; color: var(--ink-soft); }

code {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.88em;
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 1px 5px;
  overflow-wrap: break-word;
}

/* ---------- Steps ---------- */

ol.steps { margin: 0; padding: 0; list-style: none; counter-reset: step; }

ol.steps li {
  counter-increment: step;
  position: relative;
  padding-left: 42px;
  margin-bottom: 16px;
}

ol.steps li:last-child { margin-bottom: 0; }

ol.steps li::before {
  content: counter(step);
  position: absolute;
  left: 0; top: 2px;
  width: 26px; height: 26px;
  border: 1px solid var(--green);
  border-radius: 50%;
  color: var(--green-deep);
  font-size: 13px;
  font-weight: 600;
  line-height: 24px;
  text-align: center;
}

/* ---------- Feature list ---------- */

.features { display: grid; gap: 14px; }

.feature {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 12px;
  padding: 22px 24px;
}

.feature h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 600;
  color: var(--green-deep);
}

.feature p { margin: 0; color: var(--ink-soft); font-size: 15.5px; }

/* ---------- Screenshots ---------- */

.shot {
  margin: 34px 0;
  /* Wider than the text column, because a window shrunk to 620px is
     unreadable. The column stays where it is; the figure grows around it. */
  width: min(100% + 200px, calc(100vw - 48px));
  margin-left: 50%;
  transform: translateX(-50%);
  text-align: center;
}

.shot img {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: var(--shadow);
}

/* A phone-shaped capture should not be blown up to the width of a window. */
.shot-narrow { width: 100%; margin-left: 0; transform: none; }
.shot-narrow img { max-width: 320px; }

/* A capture that already arrives inside a device bezel needs no frame of
   its own: a rounded rectangle drawn around a phone's rounded corners reads
   as a mistake. */
.shot-device { width: 100%; margin-left: 0; transform: none; }
.shot-device img { max-width: 290px; border-radius: 0; box-shadow: none; }

/* An assembled or composite figure brings its own rounded corners and its own
   shadows — the cards and windows inside it are drawn that way — so the frame
   the other shots get would sit around the outside of the arrangement and
   spoil it. */
.shot-composite img,
.shot-static img { border-radius: 0; box-shadow: none; }

.shot figcaption {
  margin-top: 12px;
  font-size: 14.5px;
  color: var(--ink-soft);
}

.shot-missing {
  border: 1px dashed var(--rule);
  border-radius: 10px;
  padding: 60px 20px;
  color: var(--ink-soft);
  font-size: 14.5px;
}

/* ---------- Downloads ---------- */

.downloads { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

.dl {
  display: block;
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 12px;
  padding: 22px;
  text-decoration: none;
  color: var(--ink);
  transition: border-color .15s, transform .15s;
}

@media (hover: hover) {
  .dl:hover { border-color: var(--green); transform: translateY(-2px); color: var(--ink); }
}

@media (prefers-reduced-motion: reduce) {
  .dl { transition: none; }
}

.dl .platform { display: block; font-size: 19px; font-weight: 600; color: var(--green-deep); }
.dl .meta { display: block; margin-top: 4px; font-size: 14px; color: var(--ink-soft); }

/* The platform that has not shipped yet: present, but plainly not ready. */
.dl-pending { opacity: .72; }
.dl-pending .platform { color: var(--ink-soft); }

.version-note { margin-top: 16px; font-size: 15px; color: var(--ink-soft); }

/* "On the Mac. The Windows version gets this in a later release." — printed
   under a section by {{availability:<key>}} while site.json says the Windows
   download lacks the feature. Quiet on purpose: it qualifies the section, it
   is not a warning. */
p.availability { margin-top: 14px; font-size: 15px; color: var(--ink-soft); font-style: italic; }

/* ---------- Note panel ---------- */

.note {
  background: var(--paper-deep);
  border: 1px solid var(--rule);
  border-radius: 12px;
  padding: 22px 24px;
  font-size: 15.5px;
}

.note h3 { margin: 0 0 10px; font-size: 16px; font-weight: 600; color: var(--green-deep); }
.note h3:not(:first-child) { margin-top: 22px; }
.note p { margin-bottom: 0; color: var(--ink-soft); }
.note p + p { margin-top: 12px; }

kbd {
  font: inherit;
  font-weight: 600;
  color: var(--ink);
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 1px 6px;
  white-space: nowrap;
}

/* ---------- Questions and answers ---------- */

.qa { border-top: 1px solid var(--rule); }

.qa details {
  border-bottom: 1px solid var(--rule);
  padding: 4px 0;
}

.qa summary {
  cursor: pointer;
  padding: 14px 0;
  font-weight: 600;
  color: var(--ink);
  list-style: none;
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.qa summary::-webkit-details-marker { display: none; }

.qa summary::before {
  content: "＋";
  color: var(--green-deep);
  font-weight: 400;
  flex: none;
  width: 16px;
}

.qa details[open] summary::before { content: "－"; }

.qa .answer { padding: 0 0 18px 26px; color: var(--ink-soft); font-size: 15.5px; }
.qa .answer p:last-child { margin-bottom: 0; }

/* ---------- Links list ---------- */

ul.links { margin: 0; padding: 0; list-style: none; }
ul.links li { margin-bottom: 10px; }
ul.links li:last-child { margin-bottom: 0; }
ul.links .label { display: inline-block; min-width: 100px; color: var(--ink-soft); font-size: 15px; }

/* ---------- Footer ---------- */

.sponsor {
  background: var(--paper-deep);
  border: 1px solid var(--rule);
  border-radius: 12px;
  padding: 20px 24px;
  margin-top: 56px;
  font-size: 15.5px;
  color: var(--ink-soft);
}

.sponsor p { margin: 0; }

footer {
  margin-top: 32px;
  padding-top: 28px;
  border-top: 1px solid var(--rule);
  font-size: 14.5px;
  line-height: 2;
  color: var(--ink-soft);
}

footer .footer-nav { margin-bottom: 10px; }
footer .footer-nav a { margin-right: 18px; }

@media (max-width: 700px) {
  .shot { width: 100%; margin-left: 0; transform: none; }
}

@media (max-width: 560px) {
  body { padding: 0 20px 72px; }
  header.hero { padding-top: 40px; }
  .page-head { padding-top: 36px; }
  h1 { font-size: 36px; }
  .page-head h1 { font-size: 31px; }
  .headline { font-size: 20px; }
  .tagline, .page-head .standfirst { font-size: 17px; }
  .downloads { grid-template-columns: 1fr; }
  .rule { margin: 44px 0; }
  .note { padding: 20px; }
  .topbar { gap: 12px; padding-top: 18px; }
  .nav { gap: 16px; font-size: 15px; }

  /* Stack the label above its link instead of squeezing it into a column */
  ul.links .label { display: block; min-width: 0; margin-bottom: 1px; }
  ul.links li { margin-bottom: 16px; }

  /* Long key names must be allowed to wrap rather than overflow */
  kbd { white-space: normal; }

  ol.steps li { padding-left: 38px; }
}