/* Base : remise à zéro, typographie, mise en page générale, accessibilité. */

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

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

body {
  margin: 0;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: var(--text-base);
  line-height: 1.5;
}

h1, h2, h3, p, ul, ol, dl, dd, figure, fieldset {
  margin: 0;
}

ul, ol {
  padding-left: 1.25rem;
}

a {
  color: var(--accent-text);
  text-underline-offset: 0.15em;
}

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

img, svg {
  display: block;
  max-width: 100%;
}

:focus-visible {
  outline: 3px solid var(--accent-text);
  outline-offset: 2px;
}

[hidden] {
  display: none !important;
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: var(--space-2);
  left: var(--space-2);
  z-index: 100;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-small);
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--shadow);
  transform: translateY(-200%);
}

.skip-link:focus {
  transform: none;
}

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

/* ---------------------------------------------------------------- Mise en page */

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  height: var(--topbar-height);
  padding: 0 var(--space-4);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.topbar__brand {
  color: var(--text);
  font-weight: 700;
  font-size: var(--text-large);
  text-decoration: none;
}

.topbar__actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-left: auto;
}

.topbar > .topbar__actions > .topbar__capture {
  display: none;
}

.topbar > .topbar__menu {
  display: none;
}

.layout {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  min-height: calc(100dvh - var(--topbar-height));
}

.sidebar {
  position: sticky;
  top: var(--topbar-height);
  display: flex;
  flex-direction: column;
  width: var(--sidebar-width);
  height: calc(100dvh - var(--topbar-height));
  padding: var(--space-3) var(--space-2);
  overflow-y: auto;
  background: var(--surface);
  border-right: 1px solid var(--border);
  transition: width var(--duration) ease;
}

.sidebar__collapse {
  margin-top: auto;
  align-self: flex-end;
}

.sidebar-collapsed .sidebar {
  width: var(--sidebar-collapsed-width);
}

.sidebar-collapsed .sidebar__collapse {
  align-self: center;
}

.main {
  min-width: 0;
  padding: var(--space-5);
}

.main:focus {
  outline: none;
}

.nav-backdrop {
  position: fixed;
  inset: var(--topbar-height) 0 0 0;
  z-index: 29;
  background: var(--backdrop);
}

@media (max-width: 48rem) {
  .topbar > .topbar__menu,
  .topbar > .topbar__actions > .topbar__capture {
    display: inline-flex;
  }

  .topbar > .capture,
  .topbar__actions > .topbar__palette,
  .topbar__status {
    display: none;
  }

  .topbar {
    padding: 0 var(--space-2);
  }

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

  .sidebar,
  .sidebar-collapsed .sidebar {
    position: fixed;
    top: var(--topbar-height);
    left: 0;
    z-index: 30;
    width: min(18rem, 85vw);
    box-shadow: var(--shadow-strong);
    transform: translateX(-105%);
    transition: transform var(--duration) ease;
  }

  .sidebar.is-open {
    transform: none;
  }

  .sidebar > .sidebar__collapse {
    display: none;
  }

  .main {
    padding: var(--space-4);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
  }
}