/* ============================================================
DiveLog DS — Component: Sidebar
v3.3 (2026-07-23): DDR-006 — toggle con chevron semplici
(chevron_left / chevron_right), niente logo crossfade.
============================================================ */
.sidebar {
  display: none;
  flex-direction: column;
  height: 100%;
  overflow-y: auto;
  overflow-x: hidden;
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  padding: var(--space-3) var(--space-2);
  box-sizing: border-box;
}

@media (min-width: 600px) {
  .sidebar {
    display: flex;
  }
}

/* ── Header row ── */
.sidebar__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  margin-bottom: var(--space-4);
  min-height: 44px;
}

.sidebar--collapsed .sidebar__header {
  justify-content: center;
  padding: var(--space-2);
}

/* ── Brand ── */
.sidebar__brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-width: 0;
}

.sidebar--collapsed .sidebar__brand {
  display: none;
}

.sidebar__brand-logo {
  height: 28px;
  width: 28px;
  border-radius: var(--radius-small);
  object-fit: contain;
  flex-shrink: 0;
}

.sidebar__brand-title {
  font-family: var(--font-family-primary);
  font-size: var(--font-title-medium);
  font-weight: var(--weight-bold);
  color: var(--color-text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ── Toggle buttons (chevron semplici, DDR-006) ── */
.sidebar__toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  min-width: 44px;
  min-height: 44px;
  border: none;
  border-radius: var(--radius-medium);
  background: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  flex-shrink: 0;
  transition: background var(--motion-fast) var(--ease-standard);
}

.sidebar__toggle:hover {
  background: var(--color-surface-container);
}

.sidebar__toggle:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* Comprimi — visibile solo sidebar espansa */
.sidebar:not(.sidebar--collapsed) .sidebar__toggle--collapse {
  display: flex;
}

/* Espandi — visibile solo sidebar collassata (rail) */
.sidebar--collapsed .sidebar__toggle--expand {
  display: flex;
}

.sidebar__toggle-icon {
  font-size: 1.25rem;
  line-height: 1;
}

/* ── Nav ── */
.sidebar__nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

/* ── Footer ── */
.sidebar__footer {
  margin-top: auto;
  padding-top: var(--space-2);
}

/* ============================================================
RAIL MODE (.sidebar--collapsed)
============================================================ */
.sidebar--collapsed .drawer__link,
.sidebar--collapsed .drawer__theme-toggle {
  justify-content: center;
  padding-left: var(--space-2);
  padding-right: var(--space-2);
  gap: 0;
}

.sidebar--collapsed .menu-group__header {
  justify-content: center;
  padding-left: var(--space-2);
  padding-right: var(--space-2);
}

.sidebar--collapsed .menu-group__chevron {
  display: none;
}

.sidebar--collapsed .menu-group__content {
  display: none;
}

.sidebar--collapsed .drawer__link-label,
.sidebar--collapsed .menu-group__label-text,
.sidebar--collapsed [data-js="theme-toggle-label"],
.sidebar--collapsed .drawer__theme-toggle-badge {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.sidebar--collapsed .drawer__profile {
  display: none;
}

.sidebar--collapsed .drawer__divider {
  margin-left: var(--space-2);
  margin-right: var(--space-2);
}

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
  .sidebar__toggle {
    transition: none;
  }
}