/**
 * ri-sidebar.css — Left Sidebar Navigation
 * ==========================================
 * Implementation Guide Reference: § 6 (Sidebar Navigation)
 *
 * Two sidebar columns:
 *   .ri-sidebar--icons   (64px)  — logo + collapsed icons
 *   .ri-sidebar--labels  (220px) — grouped nav with section labels
 *
 * See implementation-guide.md § 6.1 for full HTML structure example.
 */

/* ── Shared sidebar base ──────────────────────────────────── */
.ri-sidebar {
  position: fixed;
  top: var(--topbar-height);
  bottom: 0;
  overflow-y: auto;
  overflow-x: hidden;
  background: var(--color-bg-surface);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  z-index: 900;
}

/* ── Icon column (64 px) ─────────────────────────────────── */
.ri-sidebar--icons {
  left: 0;
  width: var(--sidebar-icon-width);
  align-items: center;
  padding-top: var(--space-4);
}

/* ── Label column (220 px) ───────────────────────────────── */
.ri-sidebar--labels {
  left: var(--sidebar-icon-width);
  width: var(--sidebar-label-width);
  padding: var(--space-4) 0;
}

/* ── Section labels (MAIN, INSPECTIONS & DATA, ADMIN) ───── */
.ri-sidebar__section-label {
  padding: var(--space-5) var(--space-4) var(--space-2);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  user-select: none;
}

/* Collapsible section header (§ 6.4) */
.ri-sidebar__section-label--collapsible {
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.ri-sidebar__section-label--collapsible .ri-chevron {
  transition: transform var(--transition-fast);
}
.ri-sidebar__section-label--collapsible.is-collapsed .ri-chevron {
  transform: rotate(-180deg);
}

/* ── Nav group (ul) ──────────────────────────────────────── */
.ri-sidebar__nav-group {
  list-style: none;
  margin: 0;
  padding: 0;
}
.ri-sidebar__nav-group.is-hidden { display: none; }

/* ── Individual nav item ─────────────────────────────────── */
.ri-sidebar__item {
  position: relative;
  display: flex;
  align-items: center;
}
.ri-sidebar__item a {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  width: 100%;
  padding: 9px var(--space-4);
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  border-radius: 0;
  transition: color var(--transition-fast), background var(--transition-fast);
}
.ri-sidebar__item a:hover {
  color: var(--color-text-primary);
  background: var(--color-bg-elevated);
}

/* ── Active state (§ 6.2) ────────────────────────────────── */
.ri-sidebar__item--active a {
  color: var(--color-text-primary);
  background: var(--color-bg-elevated);
  border-left: 3px solid var(--color-accent);
  padding-left: calc(var(--space-4) - 3px); /* compensate for border width */
}

/* ── Nav item icon ───────────────────────────────────────── */
.ri-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  font-size: 14px;
  opacity: 0.8;
}

/* ── Inline "New" badge on nav items ─────────────────────── */
.ri-sidebar__item .ri-badge {
  margin-left: auto;
  margin-right: var(--space-4);
}

/* ── Divider line ────────────────────────────────────────── */
.ri-sidebar__divider {
  height: 1px;
  background: var(--color-border);
  margin: var(--space-3) var(--space-4);
}

/* ── Footer: user profile + sign out ─────────────────────── */
.ri-sidebar__footer {
  margin-top: auto;
  border-top: 1px solid var(--color-border);
  padding: var(--space-4);
}
.ri-sidebar__user-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.ri-sidebar__user-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-primary);
  line-height: 1.2;
}
.ri-sidebar__sign-out {
  font-size: 11px;
  color: var(--color-text-muted);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-top: 2px;
}
.ri-sidebar__sign-out:hover { color: var(--color-danger); }

/* ── Responsive: hide label sidebar on mobile ─────────────── */
@media (max-width: 1024px) {
  .ri-sidebar--labels {
    transform: translateX(calc(-1 * var(--sidebar-label-width)));
    transition: transform var(--transition-normal);
    z-index: 950;
    box-shadow: var(--shadow-modal);
  }
  .ri-sidebar--labels.is-open {
    transform: translateX(0);
  }
  /* Main content occupies full width under icon bar only */
  .ri-main {
    margin-left: var(--sidebar-icon-width);
  }
}

@media (max-width: 768px) {
  .ri-sidebar--icons { display: none; }
  .ri-sidebar--labels { left: 0; }
  .ri-main { margin-left: 0; }
}