/* Jetons repris de l'application (src/tokens.css) : meme beige, meme brun
   d'accent (theme d'echiquier "brown"), meme graphite en sombre. */
:root {
  --ground: #e8d2b5;
  --panel: #f1e3c9;
  --raised: #ddc49f;
  --sunken: #e3cdab;
  --line: #d6ba91;
  --line-strong: #c0a173;
  --ink-1: #141613;
  --ink-2: #4f524e;
  --ink-3: #6e6a62;
  --accent: #8a5733;
  --accent-ink: #6b4122;
  --accent-hover: #74482a;
  --on-accent: #ffffff;
  --accent-weak: color-mix(in srgb, var(--accent) 14%, transparent);
  --shadow-shot: 0 1px 2px rgba(45, 30, 15, 0.08), 0 28px 56px -20px rgba(45, 30, 15, 0.4);

  --font-sans: "IBM Plex Sans", ui-sans-serif, system-ui, "Segoe UI", sans-serif;
  --font-serif: "IBM Plex Serif", Georgia, serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "Cascadia Code", Consolas, monospace;

  --r-sm: 4px;
  --r-md: 6px;
  --r-lg: 10px;
  --gutter: 24px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
  -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    transition: none !important;
  }
}

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink-1);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3 {
  margin: 0;
  text-wrap: balance;
}

p {
  margin: 0;
}

a {
  color: var(--accent-ink);
  text-underline-offset: 0.18em;
}

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

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: var(--r-sm);
}

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -48px;
  padding: 8px 14px;
  background: var(--accent);
  color: var(--on-accent);
  border-radius: var(--r-md);
  z-index: 20;
}

.skip-link:focus {
  top: 12px;
}

/* ---------- En-tete ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--ground) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 60px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink-1);
  text-decoration: none;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.125rem;
  letter-spacing: 0.01em;
}

.brand:hover {
  color: var(--ink-1);
}

.brand-mark {
  width: 26px;
  height: 26px;
  fill: currentColor;
  flex: none;
}

.site-nav {
  display: flex;
  gap: 22px;
  margin-left: auto;
}

.site-nav a {
  color: var(--ink-2);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
}

.site-nav a:hover {
  color: var(--ink-1);
}

.lang-switch {
  display: inline-flex;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-md);
  overflow: hidden;
}

.lang-switch button {
  font: 500 0.75rem/1 var(--font-mono);
  letter-spacing: 0.06em;
  padding: 7px 9px;
  border: 0;
  background: transparent;
  color: var(--ink-2);
  cursor: pointer;
}

.lang-switch button[aria-pressed="true"] {
  background: var(--ink-1);
  color: var(--ground);
}

/* ---------- Boutons ---------- */

.button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  border-radius: var(--r-md);
  font-weight: 600;
  font-size: 0.9375rem;
  text-decoration: none;
  border: 1px solid transparent;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

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

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

.button-primary:hover {
  background: var(--accent-hover);
  color: var(--on-accent);
}

.button-quiet {
  color: var(--ink-1);
  border-color: var(--line-strong);
}

.button-quiet:hover {
  color: var(--ink-1);
  background: var(--accent-weak);
}

.button-large {
  padding: 14px 24px;
  font-size: 1rem;
}

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

.hero {
  padding: 72px 0 88px;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.12fr);
  gap: 56px;
  align-items: center;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-2);
  margin-bottom: 18px;
}

.hero h1 {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(2rem, 1.4rem + 1.9vw, 3rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.lede {
  margin-top: 20px;
  font-size: 1.0625rem;
  color: var(--ink-2);
  max-width: 34em;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.download-meta {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
}

/* ---------- Illustration de l'appli ---------- */

.app-shot {
  margin: 0;
}

.app-shot img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-shot);
}

.app-shot figcaption {
  margin-top: 12px;
  font-size: 0.8125rem;
  color: var(--ink-3);
  text-align: center;
}

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

.section {
  padding: 88px 0;
  border-top: 1px solid var(--line);
}

.section-head {
  max-width: 40em;
  margin-bottom: 44px;
}

.section-head h2,
.download-card h2 {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.6rem, 1.2rem + 1.2vw, 2.25rem);
  line-height: 1.15;
}

.section-head p {
  margin-top: 12px;
  color: var(--ink-2);
  font-size: 1.0625rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.feature {
  background: var(--panel);
  padding: 28px 26px 30px;
}

.feature-piece {
  display: block;
  width: 40px;
  height: 40px;
  margin: -6px 0 10px -4px;
}

.feature h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature p {
  color: var(--ink-2);
  font-size: 0.9375rem;
}

.also-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  padding: 0;
  margin: 28px 0 0;
}

.also-list li {
  padding: 5px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-size: 0.8125rem;
  color: var(--ink-2);
}

/* ---------- Telechargement ---------- */

.section-download {
  background: var(--panel);
}

.download-inner {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: 56px;
  align-items: start;
}

.download-version {
  margin-top: 20px;
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.download-details {
  margin: 10px 0 28px;
  color: var(--ink-2);
  font-size: 0.9375rem;
  font-variant-numeric: tabular-nums;
}

.download-notes h3 {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-2);
  margin-bottom: 16px;
}

.req-list {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  gap: 14px 24px;
  margin: 0;
}

.req-list dt {
  font-weight: 600;
  font-size: 0.9375rem;
}

.req-list dd {
  margin: 0;
  color: var(--ink-2);
  font-size: 0.9375rem;
  max-width: 38em;
}

/* ---------- Versions ---------- */

.section-head .notes-lang-hint {
  font-size: 0.875rem;
  font-style: italic;
}

.release-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.release {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 24px;
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
}

.release-meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-items: flex-start;
}

.release-version {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.2;
}

.release-date {
  font-size: 0.875rem;
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
}

.release-badge {
  margin-top: 4px;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--on-accent);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.release-body {
  min-width: 0;
  max-width: 46em;
}

.release-notes {
  color: var(--ink-1);
  font-size: 0.9375rem;
}

.release-notes p + p,
.release-notes p + ul,
.release-notes ul + p,
.release-notes ul + ul {
  margin-top: 10px;
}

.release-notes ul {
  margin: 0;
  padding-left: 1.2em;
}

.release-notes li + li {
  margin-top: 6px;
}

.release-notes li::marker {
  color: var(--accent);
}

.release details summary {
  cursor: pointer;
  color: var(--ink-2);
  font-size: 0.9375rem;
  list-style: none;
}

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

.release details summary::before {
  content: "+";
  display: inline-block;
  width: 1.2em;
  font-family: var(--font-mono);
  color: var(--accent);
}

.release details[open] summary::before {
  content: "−";
}

.release details[open] summary {
  margin-bottom: 10px;
}

.release-download {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  font-size: 0.875rem;
  font-weight: 500;
}

.release-download svg {
  width: 15px;
  height: 15px;
}

.release-status {
  padding: 26px 0;
  color: var(--ink-2);
}

/* ---------- Pied de page ---------- */

.site-footer {
  border-top: 1px solid var(--line);
  padding: 32px 0 40px;
  font-size: 0.875rem;
  color: var(--ink-2);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 32px;
  align-items: center;
  justify-content: space-between;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.footer-brand .brand-mark {
  width: 20px;
  height: 20px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  list-style: none;
  margin: 0;
  padding: 0;
}

/* ---------- Petits ecrans ---------- */

@media (max-width: 960px) {
  .hero-inner,
  .download-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 48px;
  }
  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  :root {
    --gutter: 16px;
  }
  .site-nav {
    display: none;
  }
  .lang-switch {
    margin-left: auto;
  }
  .hero {
    padding: 44px 0 56px;
  }
  .section {
    padding: 60px 0;
  }
  .feature-grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .req-list {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
  }
  .req-list dd {
    margin-bottom: 12px;
  }
  .release {
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
  }
  .release-meta {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 4px 12px;
  }
}