/* Coque d'application : barre latérale + en-tête + contenu */

.app {
  min-height: 100vh;
  display: grid;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
}

/* ---------- Barre latérale ---------- */
.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  overflow-y: auto;
}

.sidebar__brand {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-5) var(--space-4) var(--space-4);
}

.sidebar__brand img {
  height: 4.75rem;
  width: auto;
}

.sidebar__nav {
  flex: 1;
  padding: 0 var(--space-3) var(--space-5);
}

.nav-group + .nav-group {
  margin-top: var(--space-4);
}

.nav-group__label {
  padding: 0 var(--space-3) var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* Rubriques dépliables du menu */
details.nav-group > summary.nav-group__label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 2rem;
  padding: 0 var(--space-3);
  border-radius: var(--radius-md);
  cursor: pointer;
  list-style: none;
  user-select: none;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
details.nav-group > summary.nav-group__label::-webkit-details-marker { display: none; }
details.nav-group > summary.nav-group__label:hover { background: var(--color-bg); color: var(--color-text); }
details.nav-group > summary.nav-group__label::after {
  content: "";
  width: 0.45rem;
  height: 0.45rem;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  transition: transform var(--dur-fast) var(--ease);
}
details.nav-group:not([open]) > summary.nav-group__label::after { transform: rotate(-45deg); }
details.nav-group > summary.nav-group__label:focus-visible { outline: 2px solid var(--color-brand); outline-offset: 1px; }
.nav-group__items { display: flex; flex-direction: column; gap: 2px; padding-top: var(--space-1); }

.nav-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-height: 2.5rem;
  padding: 0 var(--space-3);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-weight: 500;
  text-decoration: none;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}

.nav-item svg {
  flex: none;
  width: 1.25rem;
  height: 1.25rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
  color: var(--color-text-muted);
}

a.nav-item:hover {
  background: var(--color-bg);
}

.nav-item[aria-current="page"] {
  background: var(--color-brand-soft);
  color: var(--color-brand-strong);
  font-weight: 600;
}

.nav-item[aria-current="page"] svg {
  color: var(--color-brand);
}

.nav-item[aria-current="page"]::before {
  content: "";
  position: absolute;
  left: calc(var(--space-3) * -1);
  top: 0.45rem;
  bottom: 0.45rem;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--color-brand);
}

.nav-item.is-disabled {
  color: var(--color-text-muted);
  opacity: 0.65;
  cursor: not-allowed;
}

.nav-item__soon {
  margin-left: auto;
  padding: 1px var(--space-2);
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--color-text-muted);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
}

/* ---------- Zone principale ---------- */
.main {
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: var(--space-4);
  height: var(--topbar-height);
  padding: 0 var(--space-5);
  background: rgb(255 255 255 / 0.9);
  backdrop-filter: saturate(1.4) blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.topbar__burger {
  display: none;
}

.topbar__search {
  position: relative;
  flex: 1 1 14rem;
  min-width: 9rem;
  max-width: 28rem;
}

.topbar__search svg {
  position: absolute;
  left: var(--space-4);
  top: 50%;
  width: 1.1rem;
  height: 1.1rem;
  transform: translateY(-50%);
  fill: none;
  stroke: var(--color-text-muted);
  stroke-width: 1.75;
  stroke-linecap: round;
  pointer-events: none;
}

.topbar__search input {
  width: 100%;
  height: 2.5rem;
  padding: 0 3.25rem 0 2.6rem;
  background: var(--color-bg);
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  transition: background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}

.topbar__search input:hover {
  border-color: var(--color-border-strong);
}

.topbar__search input:focus {
  outline: none;
  background: var(--color-surface);
  border-color: var(--color-brand);
  box-shadow: 0 0 0 4px var(--color-brand-ring);
}

.topbar__search kbd {
  position: absolute;
  right: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
}

.topbar__spacer {
  flex: 1;
}

.topbar__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.content {
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: var(--space-6) var(--space-5) var(--space-7);
}

.page-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.page-head p {
  margin-top: var(--space-1);
  color: var(--color-text-muted);
}

/* ---------- Utilitaires de disposition ---------- */
.stack > * + * { margin-top: var(--space-4); }
.stack-lg > * + * { margin-top: var(--space-6); }
.cluster { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-3); }
.grid { display: grid; gap: var(--space-5); }
.grid--cards { grid-template-columns: repeat(auto-fill, minmax(15rem, 1fr)); }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr)); }

/* ---------- Tablette et mobile : menu en tiroir ---------- */
.scrim {
  display: none;
}

@media (max-width: 960px) {
  .app {
    grid-template-columns: minmax(0, 1fr);
  }

  .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 40;
    width: min(var(--sidebar-width), 86vw);
    transform: translateX(-100%);
    transition: transform var(--dur) var(--ease);
    box-shadow: var(--shadow-lg);
  }

  body[data-nav-open] .sidebar {
    transform: none;
  }

  body[data-nav-open] .scrim {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 30;
    background: rgb(17 17 17 / 0.4);
  }

  .topbar {
    padding: 0 var(--space-4);
  }

  .topbar__burger {
    display: inline-flex;
  }

  .content {
    padding: var(--space-5) var(--space-4) var(--space-6);
  }
}

@media (max-width: 640px) {
  .topbar__search kbd,
  .topbar__user-name {
    display: none;
  }
}