/* ========================================
   Dashboard Layout — Sidebar, Topbar, Grid
   ======================================== */

/* ---- APP SHELL ---- */

.app {
  display: none;
  min-height: 100vh;
}

.app--visible {
  display: flex;
  flex-direction: column;
}

/* ---- TOPBAR ---- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-warm-white);
  border-bottom: 1px solid var(--color-forest-light);
  height: var(--topbar-height);
  padding: 0 var(--container-padding);
  display: flex;
  align-items: center;
}

.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

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

.topbar__logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-forest);
  letter-spacing: -0.02em;
}

.topbar__logo span {
  color: var(--color-amber);
}

.topbar__title {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-muted);
  display: none;
}

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

.topbar__email {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  display: none;
}

.topbar__mobile-toggle {
  display: none;
  width: 2.5rem;
  height: 2.5rem;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--color-bark);
  transition: background var(--transition-fast);
}

.topbar__mobile-toggle:hover {
  background: var(--color-forest-light);
}

/* ---- LAYOUT ---- */

.layout {
  display: flex;
  flex: 1;
}

/* ---- SIDEBAR ---- */

.sidebar {
  width: var(--sidebar-width);
  background: var(--color-forest);
  color: var(--color-snow);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: var(--topbar-height);
  left: 0;
  bottom: 0;
  z-index: 90;
  overflow-y: auto;
}

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

.sidebar__section {
  padding: 0 var(--space-md);
  margin-bottom: var(--space-md);
}

.sidebar__section-label {
  font-size: 0.6875rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.4);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: var(--space-sm) var(--space-md);
  margin-bottom: var(--space-xs);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: 0.625rem var(--space-md);
  border-radius: var(--radius-sm);
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9375rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  margin-bottom: 2px;
  border-left: 3px solid transparent;
}

.nav-item:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-snow);
}

.nav-item--active {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-snow);
  border-left-color: var(--color-amber);
}

.nav-item__icon {
  width: 1.25rem;
  height: 1.25rem;
  flex-shrink: 0;
}

.nav-item__label {
  flex: 1;
}

.sidebar__footer {
  padding: var(--space-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* ---- MAIN CONTENT ---- */

.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  padding: var(--space-xl) var(--container-padding);
  min-height: calc(100vh - var(--topbar-height));
}

.main-content__inner {
  max-width: var(--content-max-width);
  margin: 0 auto;
}

/* ---- VIEW HEADER ---- */

.view-header {
  margin-bottom: var(--space-xl);
}

.view-header__title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--color-bark);
  margin-bottom: var(--space-xs);
}

.view-header__subtitle {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

/* ---- STATS GRID ---- */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

/* ---- ACTIONS ROW ---- */

.actions-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

/* ---- CONTENT GRID ---- */

.content-grid {
  display: grid;
  gap: var(--space-lg);
}

.content-grid--2col {
  grid-template-columns: 1fr 1fr;
}

/* ---- PAGE TRANSITION ---- */

.view-enter {
  animation: viewFadeIn 300ms var(--ease-out);
}

@keyframes viewFadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---- FOOTER ---- */

.app-footer {
  margin-left: var(--sidebar-width);
  padding: var(--space-lg) var(--container-padding);
  text-align: center;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-forest-light);
}

/* ---- MOBILE BOTTOM NAV ---- */

.bottom-nav {
  display: none;
}

/* ---- MOBILE MENU OVERLAY ---- */

.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(27, 58, 45, 0.5);
  backdrop-filter: blur(4px);
}

.mobile-menu--visible {
  display: block;
}

.mobile-menu__panel {
  position: absolute;
  top: 0;
  right: 0;
  width: 280px;
  height: 100%;
  background: var(--color-snow);
  padding: var(--space-lg);
  box-shadow: var(--shadow-lg);
  transform: translateX(100%);
  transition: transform 300ms var(--ease-out);
}

.mobile-menu--visible .mobile-menu__panel {
  transform: translateX(0);
}

.mobile-menu__close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-lg);
  color: var(--color-text-muted);
}

.mobile-menu__close:hover {
  background: var(--color-forest-light);
}

.mobile-menu__item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: 0.75rem var(--space-md);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-bark);
  transition: background var(--transition-fast);
  margin-bottom: 2px;
}

.mobile-menu__item:hover {
  background: var(--color-forest-light);
}

.mobile-menu__item--active {
  color: var(--color-forest);
  background: rgba(27, 58, 45, 0.06);
}

.mobile-menu__item--danger {
  color: var(--color-ember);
}

.mobile-menu__divider {
  height: 1px;
  background: var(--color-forest-light);
  margin: var(--space-md) 0;
}

/* ---- LANGUAGE SWITCHER ---- */

.dash-lang-switcher {
  position: relative;
}

.dash-lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  background: transparent;
  border: 1.5px solid var(--color-forest-light);
  border-radius: 100px;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
  letter-spacing: 0.03em;
}

.dash-lang-toggle:hover {
  border-color: var(--color-frost);
  color: var(--color-bark);
  background: rgba(27, 58, 45, 0.03);
}

.dash-lang-chevron {
  transition: transform 0.25s var(--ease-out);
}

.dash-lang-switcher.open .dash-lang-chevron {
  transform: rotate(180deg);
}

.dash-lang-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 150px;
  background: var(--color-snow);
  border: 1px solid var(--color-forest-light);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 6px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity 0.25s var(--ease-out), transform 0.25s var(--ease-out), visibility 0.25s;
  z-index: 200;
}

.dash-lang-switcher.open .dash-lang-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dash-lang-option {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 14px;
  background: none;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
  text-align: left;
}

.dash-lang-option:hover {
  background: var(--color-warm-white);
  color: var(--color-bark);
}

.dash-lang-option.active {
  color: var(--color-forest);
  font-weight: 600;
}

.dash-lang-option.active::after {
  content: '';
  display: block;
  width: 14px;
  height: 14px;
  margin-left: auto;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 14 14'%3E%3Cpath d='M3 7l3 3 5-5' fill='none' stroke='%231B3A2D' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
}

.dash-lang-flag {
  font-size: 1.05rem;
  line-height: 1;
}

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

@media (min-width: 640px) {
  .topbar__email {
    display: block;
  }

  .topbar__title {
    display: block;
  }
}

@media (max-width: 1023px) {
  .sidebar {
    display: none;
  }

  .main-content {
    margin-left: 0;
    padding-bottom: calc(var(--space-2xl) + 60px);
  }

  .app-footer {
    margin-left: 0;
    padding-bottom: calc(var(--space-lg) + 60px);
  }

  .topbar__mobile-toggle {
    display: flex;
  }

  .bottom-nav {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 90;
    background: var(--color-snow);
    border-top: 1px solid var(--color-forest-light);
    padding: var(--space-sm) 0;
    justify-content: space-around;
  }

  .bottom-nav__item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: var(--space-xs) var(--space-sm);
    color: var(--color-text-muted);
    font-size: 0.625rem;
    font-weight: 600;
    transition: color var(--transition-fast);
    min-width: 56px;
  }

  .bottom-nav__item:hover {
    color: var(--color-forest);
  }

  .bottom-nav__item--active {
    color: var(--color-forest);
  }

  .bottom-nav__icon {
    width: 1.25rem;
    height: 1.25rem;
  }

  .content-grid--2col {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }

  .actions-row {
    flex-direction: column;
  }

  .actions-row .btn {
    width: 100%;
  }
}