/* layout.css */
/* Dashboard CRM overall grid shell and layout wrappers. */

.app-container {
  display: flex;
  min-height: 100vh;
  background-color: var(--color-bg);
  color: var(--color-text-primary);
  /* Prevent the flex container itself from expanding beyond the viewport */
  overflow-x: hidden;
  max-width: 100vw;
}

/* ============================================================
   SIDEBAR
   ============================================================ */
.sidebar {
  position: fixed;
  top: 0;
  bottom: 0;
  right: 0;           /* RTL: sidebar on the right */
  left: auto;
  width: 240px;
  background-color: var(--color-sidebar);
  border-left: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  z-index: 100;
  transition: transform var(--transition-normal);
}

.sidebar__brand {
  height: 64px;
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 0 var(--spacing-xl);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

.sidebar__logo {
  font-size: var(--font-size-lg);
}

.sidebar__title {
  font-weight: 700;
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  /* Prevent text from overflowing brand row */
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sidebar__nav {
  flex: 1;
  padding: var(--spacing-md) var(--spacing-xs);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xxs);
  overflow-y: auto;
}

.sidebar__link {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  font-weight: 500;
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast), background-color var(--transition-fast);
  min-height: 44px; /* touch target */
}

.sidebar__link:hover {
  background-color: var(--color-border-light);
  color: var(--color-text-primary);
}

.sidebar__link--active {
  background-color: var(--color-primary-glow);
  color: var(--color-primary);
  border-right: 4px solid var(--color-primary);
  border-radius: 0 var(--radius-xs) var(--radius-xs) 0;
}

.sidebar__footer {
  padding: var(--spacing-md);
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  flex-shrink: 0;
}

.sidebar__user {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.sidebar__avatar {
  font-size: var(--font-size-lg);
}

.sidebar__user-info {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.sidebar__user-name {
  font-weight: 600;
  font-size: var(--font-size-sm);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar__user-role {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar__logout-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm);
  border-radius: var(--radius-sm);
  background-color: rgba(239, 68, 68, 0.1);
  color: #EF4444;
  font-weight: 600;
  font-size: var(--font-size-sm);
  transition: background-color var(--transition-fast);
  min-height: 44px;
}

.sidebar__logout-btn:hover {
  background-color: rgba(239, 68, 68, 0.2);
}

.sidebar__version {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-align: center;
}

/* ============================================================
   MAIN LAYOUT SHELL
   ============================================================ */
.main-layout {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  /* Critical: constrain to available width, never allow overflow */
  min-width: 0;
  overflow-x: hidden;
}

/* ============================================================
   TOPBAR
   ============================================================ */
.topbar {
  height: 64px;
  background-color: var(--color-sidebar);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 90;
  flex-shrink: 0;
}

.topbar__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-md);
  gap: var(--spacing-xs);
  overflow: hidden;
}

.topbar__app-name {
  font-size: var(--font-size-sm);
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}

.topbar__refresh-btn {
  font-size: var(--font-size-md);
  padding: var(--spacing-xs);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast);
  min-height: 44px;
  min-width: 44px;
  flex-shrink: 0;
}

.topbar__refresh-btn:hover {
  background-color: var(--color-border-light);
}

/* ============================================================
   CONTENT VIEWPORT
   ============================================================ */
.content-viewport {
  flex: 1;
  padding: var(--spacing-md);
  overflow-y: auto;
  overflow-x: hidden;
  padding-bottom: 80px; /* clearance for mobile bottom nav */
  /* Ensure content never exceeds parent width */
  max-width: 100%;
  min-width: 0;
}

/* ============================================================
   MOBILE BOTTOM NAV
   ============================================================ */
.mobile-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 60px;
  background-color: var(--color-sidebar);
  border-top: 1px solid var(--color-border);
  z-index: 100;
  justify-content: space-around;
  align-items: center;
  padding: var(--spacing-xs) 0;
  /* Safe area for notch phones */
  padding-bottom: max(var(--spacing-xs), env(safe-area-inset-bottom));
}

.mobile-nav__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--color-text-secondary);
  font-size: var(--font-size-xs);
  gap: var(--spacing-xxs);
  min-width: 64px;
  min-height: 44px;
  justify-content: center;
  text-align: center;
  flex: 1;
  padding: var(--spacing-xxs) var(--spacing-xs);
}

.mobile-nav__icon {
  font-size: var(--font-size-md);
  line-height: 1;
}

.mobile-nav__text {
  font-weight: 500;
  font-size: 0.7rem;
  white-space: nowrap;
}

.mobile-nav__item--active {
  color: var(--color-primary);
}

/* ============================================================
   RESPONSIVE BREAKPOINTS
   ============================================================ */

/* ── Mobile (< 768px) ─────────────────────────────────────── */
@media (max-width: 767px) {
  /* Sidebar is completely off-screen on mobile — slides right (RTL) */
  .sidebar {
    transform: translateX(100%);
    /* Keep physical width so transition animation works, but ensure
       it doesn't contribute to document width while off-screen */
    visibility: hidden;
    pointer-events: none;
  }

  /* No margin offset on mobile */
  .main-layout {
    margin-right: 0 !important;
    margin-left: 0 !important;
  }

  .mobile-nav {
    display: flex;
  }

  .content-viewport {
    padding: var(--spacing-sm);
    padding-bottom: 80px;
  }

  .topbar__app-name {
    font-size: var(--font-size-sm);
  }
}

/* ── Tablet & Desktop (>= 768px) ───────────────────────────── */
@media (min-width: 768px) {
  .sidebar {
    transform: translateX(0);
    visibility: visible;
    pointer-events: auto;
    right: 0;
  }

  .main-layout {
    margin-right: 240px;
    margin-left: 0;
  }

  .content-viewport {
    padding: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
  }

  .topbar__inner {
    padding: 0 var(--spacing-xl);
  }

  .topbar__app-name {
    font-size: var(--font-size-md);
  }
}

/* ── Very narrow screens (< 360px) ─────────────────────────── */
@media (max-width: 359px) {
  .content-viewport {
    padding: var(--spacing-xs);
    padding-bottom: 80px;
  }

  .mobile-nav__text {
    display: none; /* Show only icons on the smallest phones */
  }

  .mobile-nav__item {
    min-width: 44px;
  }
}