/* The website's look: the app's colours, light or dark as the system is. */

:root {
  --bg: #fbfbfa;
  --fg: #1d1f23;
  --muted: #62666d;
  --line: #e2e2df;
  --card: #ffffff;
  --accent: #1c7ed6;
  --accent-fg: #ffffff;
  --soft: #eef3fa;
  --radius: 14px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1b1d21;
    --fg: #ececec;
    --muted: #a0a4ab;
    --line: #30333a;
    --card: #23262b;
    --accent: #4dabf7;
    --accent-fg: #0d1117;
    --soft: #262c36;
    color-scheme: dark;
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 17px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
}

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

h1,
h2 {
  line-height: 1.2;
  letter-spacing: -0.01em;
}

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

/* ---- Header ---- */

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1120px;
  margin: 0 auto;
  padding: 18px 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: inherit;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.2rem;
}

.top nav {
  display: flex;
  gap: 22px;
}

.top nav a {
  color: var(--muted);
  text-decoration: none;
}

.top nav a:hover {
  color: var(--fg);
}

main {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- Hero ---- */

.hero {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 48px;
  align-items: center;
  padding: 40px 0 56px;
}

.hero-logo {
  width: 100%;
  height: auto;
  border-radius: 28px;
}

h1 {
  margin: 0 0 16px;
  font-size: clamp(2rem, 4.5vw, 3.2rem);
}

.lead {
  margin: 0 0 24px;
  font-size: 1.15rem;
  color: var(--muted);
  max-width: 36em;
}

.cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 10px;
}

.button {
  display: inline-block;
  padding: 11px 20px;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--fg);
  background: var(--card);
  text-decoration: none;
  font-weight: 600;
}

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

.button:hover {
  filter: brightness(1.06);
}

/* ---- Features ---- */

.features {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  padding-bottom: 64px;
}

.features div {
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}

.features h2 {
  margin: 0 0 6px;
  font-size: 1.05rem;
}

.features p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

/* ---- Sections ---- */

.section-head {
  max-width: 44em;
  margin-bottom: 20px;
}

.section-head h2 {
  margin: 0 0 8px;
  font-size: 1.8rem;
}

.section-head p {
  margin: 0;
  color: var(--muted);
}

/* ---- The demo ---- */

.try {
  padding-bottom: 64px;
}

/* The demo is wider than the page, so that the map has room beside its notes. */
.demo,
.demo-bar {
  position: relative;
  left: 50%;
  width: min(1360px, calc(100vw - 48px));
  transform: translateX(-50%);
}

.demo {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--card);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.12);
}

.cover {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 40px;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.cover span {
  padding: 10px 20px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-fg);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}

.cover:hover span {
  filter: brightness(1.08);
}

.cover[hidden] {
  display: none;
}

.demo iframe {
  display: block;
  width: 100%;
  height: min(760px, 82vh);
  border: 0;
}

.demo-picture,
.phone-note {
  display: none;
}

.demo-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 10px;
}

.demo-bar > span:last-child {
  display: flex;
  align-items: center;
  gap: 16px;
}

.demo-bar button {
  font: inherit;
  font-size: 0.9rem;
  padding: 5px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--fg);
  background: var(--card);
  cursor: pointer;
}

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

.download {
  padding-bottom: 64px;
}

.downloads {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.download-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  color: var(--fg);
  text-decoration: none;
}

.download-card strong {
  font-size: 1.15rem;
}

.download-card span {
  color: var(--muted);
  font-size: 0.92rem;
}

.download-card.yours {
  border-color: var(--accent);
  background: var(--soft);
}

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

.inline-link {
  color: var(--accent) !important;
  text-decoration: underline;
}

.first-open {
  margin-top: 20px;
  padding: 14px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.first-open summary {
  cursor: pointer;
  font-weight: 600;
}

.first-open li {
  margin: 6px 0;
}

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

footer {
  max-width: 1120px;
  margin: 0 auto;
  padding: 28px 24px 48px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
}

footer p {
  margin: 4px 0;
}

/* ---- Small screens: a picture in place of the demo ---- */

@media (max-width: 760px) {
  .top nav {
    gap: 14px;
    font-size: 0.95rem;
  }

  .hero {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
    padding-top: 16px;
  }

  .hero-logo {
    width: 180px;
  }

  .features,
  .downloads {
    grid-template-columns: minmax(0, 1fr);
  }

  .demo iframe,
  .demo-bar,
  .cover {
    display: none;
  }

  .demo {
    left: 0;
    width: auto;
    transform: none;
  }

  .demo-picture,
  .demo-picture img {
    display: block;
    width: 100%;
    height: auto;
  }

  .phone-note {
    display: block;
  }
}

@media (min-width: 761px) and (max-width: 980px) {
  .features {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}