:root {
  --sq-bg: #f9f9f9;
  --sq-surface: #ffffff;
  --sq-text: #000000;
  --sq-muted: #6b6b6b;
  --sq-border: #dddddd;
  --sq-accent: #5f7f67;
  --sq-accent-dark: #3f5f45;
  --sq-header: #8da08d;
  --sq-soft: #f7f7f7;
  --sq-warm: #f3f5f3;
  --sq-max: 1120px;
  --sq-radius: 4px;
  --sq-shadow: 0 8px 20px rgba(0, 0, 0, 0.05);
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--sq-bg);
  color: var(--sq-text);
  font-family: "Open Sans", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.72;
}

a {
  color: var(--sq-accent);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

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

a:focus-visible,
button:focus-visible,
.button:focus-visible,
.navbar a:focus-visible {
  outline: 3px solid rgba(95, 127, 103, 0.38);
  outline-offset: 3px;
  border-radius: 4px;
}

.navbar {
  background: rgba(141, 160, 141, 0.9) !important;
  border-bottom: 0;
  box-shadow: none;
}

.navbar-title {
  color: #6b6b6b;
  font-family: "Josefin Sans", Arial, sans-serif;
  font-size: 36px;
  font-weight: 300;
  letter-spacing: 0;
}

.navbar-nav .nav-link {
  color: #ffffff;
  font-family: "Josefin Sans", Arial, sans-serif;
  font-weight: 300;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: var(--sq-accent);
}

.quarto-title-banner {
  background: transparent;
}

main.content {
  max-width: var(--sq-max);
}

h1,
h2,
h3 {
  color: var(--sq-text);
  font-family: "Josefin Sans", Arial, sans-serif;
  font-weight: 300;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(2.1rem, 4vw, 3rem);
  line-height: 1.15;
}

h2 {
  margin-top: 3rem;
  padding-top: 0.4rem;
  border-top: 1px solid var(--sq-border);
  font-size: 1.6rem;
}

h3 {
  font-size: 1.25rem;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(260px, 0.8fr);
  gap: 2rem;
  align-items: start;
  margin: 1.5rem 0 3rem;
  padding: 2rem 0;
}

.hero-copy > p:first-of-type {
  color: var(--sq-text);
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.35;
  margin-top: 0.6rem;
}

.hero-copy > p:nth-of-type(2) {
  color: var(--sq-muted);
  font-weight: 560;
}

.hero-note,
.notice,
.feature-card,
.app-card,
.timeline-item,
.pub-item {
  background: var(--sq-surface);
  border: 1px solid var(--sq-border);
  border-radius: var(--sq-radius);
}

.hero-note {
  box-shadow: var(--sq-shadow);
  padding: 1.25rem;
  border-left: 4px solid var(--sq-accent);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.5rem 0;
}

.page-tools {
  display: flex;
  justify-content: flex-end;
  margin: 0.25rem 0 1.25rem;
}

.lang-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.15rem;
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--sq-border);
  border-radius: 6px;
  background: var(--sq-surface);
  color: var(--sq-muted);
  font-size: 0.9rem;
  font-weight: 650;
  text-decoration: none;
}

.lang-button:hover {
  border-color: var(--sq-accent);
  color: var(--sq-accent-dark);
  text-decoration: none;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.65rem;
  padding: 0.55rem 0.95rem;
  border: 1px solid var(--sq-border);
  border-radius: 6px;
  background: var(--sq-surface);
  color: var(--sq-text);
  font-weight: 650;
  text-decoration: none;
}

.button:hover {
  border-color: var(--sq-accent);
  color: var(--sq-accent-dark);
  text-decoration: none;
}

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

.button.primary:hover {
  background: var(--sq-accent-dark);
  color: white;
}

.card-grid {
  display: grid;
  gap: 1rem;
  margin: 1.25rem 0 2rem;
}

.card-grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card-grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.feature-card,
.app-card,
.pub-item {
  padding: 1.15rem;
}

.feature-card h3,
.app-card h3 {
  margin-top: 0;
}

.feature-card {
  border-top: 4px solid var(--sq-accent);
}

.app-card {
  background: linear-gradient(180deg, var(--sq-surface), var(--sq-soft));
}

.app-card code {
  display: inline-block;
  border: 1px solid rgba(95, 127, 103, 0.22);
  background: var(--sq-soft);
  color: var(--sq-accent-dark);
  border-radius: 999px;
  padding: 0.1rem 0.55rem;
  font-size: 0.82rem;
  font-weight: 700;
}

.card-link {
  font-weight: 700;
}

.notice {
  background: var(--sq-warm);
  padding: 1rem 1.1rem;
  color: var(--sq-text);
}

.timeline {
  display: grid;
  gap: 0.85rem;
  margin: 1rem 0 2rem;
}

.timeline-item {
  padding: 1rem 1.1rem;
  border-left: 4px solid var(--sq-accent);
}

.pub-list {
  display: grid;
  gap: 1rem;
}

.page-footer {
  background: var(--sq-header);
  border-top: 0;
  color: #ffffff;
}

@media (max-width: 900px) {
  .hero,
  .card-grid.three,
  .card-grid.two {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 2.4rem;
  }
}

@media (max-width: 520px) {
  body {
    font-size: 16px;
  }

  .hero {
    margin-top: 0.25rem;
    padding-top: 1rem;
  }

  .button {
    width: 100%;
  }
}