/* ============================================================
   LAYOUT STYLES — SmartHome Dashboard
   App shell, navigation, page grids
   ============================================================ */

/* ── App Shell ── */
.app {
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
}

.app__content {
  flex: 1;
  padding: var(--space-md);
  padding-bottom: calc(var(--nav-height-mobile) + env(safe-area-inset-bottom, 0px) + var(--space-2xl));
  max-width: var(--max-content-width);
  margin: 0 auto;
  width: 100%;
}

/* ── Top Bar ── */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: max(var(--space-md), calc(env(safe-area-inset-top, 0px) + 10px));
  padding-bottom: var(--space-md);
  padding-left: max(var(--space-md), env(safe-area-inset-left, 0px));
  padding-right: max(var(--space-md), env(safe-area-inset-right, 0px));
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: rgba(10, 14, 23, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.topbar__left {
  display: flex;
  flex-direction: column;
}

.topbar__greeting {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.topbar__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  line-height: 1.2;
}

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

.topbar__avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gradient-warm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-sm);
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.15);
}

/* ── Bottom Navigation ── */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: calc(var(--nav-height-mobile) + env(safe-area-inset-bottom, 0px));
  background: rgba(10, 14, 23, 0.94);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: flex-start;
  justify-content: space-around;
  padding-top: 6px;
  padding-bottom: env(safe-area-inset-bottom, 0px);
  padding-left: max(var(--space-xs), env(safe-area-inset-left, 0px));
  padding-right: max(var(--space-xs), env(safe-area-inset-right, 0px));
  z-index: var(--z-nav);
}

.bottom-nav__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-lg);
  min-width: 56px;
  color: var(--text-tertiary);
  transition: all var(--transition-base);
  position: relative;
  text-decoration: none;
}

.bottom-nav__item svg {
  width: 24px;
  height: 24px;
  stroke-width: 1.8;
  transition: all var(--transition-base);
}

.bottom-nav__item span {
  font-size: 10px;
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.02em;
}

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

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

.bottom-nav__item--active::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 3px;
  background: var(--accent-orange);
  border-radius: 0 0 var(--radius-full) var(--radius-full);
}

/* ── Page Grid ── */
.page-grid {
  display: grid;
  gap: var(--space-md);
}

/* Dashboard stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xs);
}

/* Room cards */
.rooms-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

/* Device cards */
.devices-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

/* Scenes row */
.scenes-row {
  display: flex;
  gap: var(--space-sm);
  overflow-x: auto;
  padding-bottom: var(--space-xs);
  padding-right: var(--space-md);
  -webkit-overflow-scrolling: touch;
  scroll-snap-type: x mandatory;
  -ms-overflow-style: none;
  scrollbar-width: none;
}

.scenes-row::-webkit-scrollbar {
  display: none;
}

/* Rooms filter */
.rooms-filter {
  display: flex;
  gap: var(--space-xs);
  overflow-x: auto;
  padding-bottom: var(--space-xs);
  -webkit-overflow-scrolling: touch;
  -ms-overflow-style: none;
  scrollbar-width: none;
}

.rooms-filter::-webkit-scrollbar {
  display: none;
}

/* ── Scene Card ── */
.scene-card {
  flex-shrink: 0;
  min-width: 104px;
  padding: var(--space-sm) var(--space-md);
  text-align: center;
  cursor: pointer;
  scroll-snap-align: start;
}

.scene-card__icon {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-xs);
}

.scene-card__name {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
}

/* ── Room Card (Dashboard) ── */
.room-card {
  cursor: pointer;
}

.room-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-md);
}

.room-card__name {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
}

.room-card__count {
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
}

.room-card__devices {
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
}

.room-card__device-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  background: rgba(255,255,255,0.06);
  color: var(--text-secondary);
}

.room-card__device-chip--on {
  background: var(--accent-green-glow);
  color: var(--accent-green);
}

/* ── Climate Page ── */
.climate-main {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
}

.climate-controls {
  display: flex;
  gap: var(--space-md);
  width: 100%;
}

.climate-controls .glass-card {
  flex: 1;
}

/* ── Security Page ── */
.security-grid {
  display: grid;
  gap: var(--space-md);
}

.camera-preview {
  width: 100%;
  aspect-ratio: 16/9;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.camera-preview__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.6) 0%, transparent 40%);
  display: flex;
  align-items: flex-end;
  padding: var(--space-md);
}

.camera-preview__info {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--font-size-xs);
}

/* ── Event Log ── */
.event-log {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.event-log__item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-sm);
  border-radius: var(--radius-md);
  background: var(--glass-bg);
  transition: background var(--transition-fast);
}

.event-log__item:hover {
  background: var(--glass-bg-strong);
}

.event-log__icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.event-log__text {
  flex: 1;
  min-width: 0;
}

.event-log__title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

.event-log__time {
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
}

/* ── Settings ── */
.settings-group {
  margin-bottom: var(--space-lg);
}

.settings-group__title {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-sm);
  padding-left: var(--space-xs);
}

.settings-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md);
  border-radius: var(--radius-lg);
  background: var(--glass-bg);
  margin-bottom: var(--space-xs);
  transition: background var(--transition-fast);
}

.settings-item:hover {
  background: var(--glass-bg-strong);
}

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

.settings-item__icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--glass-bg-strong);
}

.settings-item__icon svg {
  width: 20px;
  height: 20px;
  stroke: var(--text-secondary);
  stroke-width: 1.8;
  fill: none;
}

.settings-item__label {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
}

.settings-item__desc {
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
  margin-top: 1px;
}

.settings-item__value {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

/* ── Responsive: Tablet+ ── */
@media (min-width: 640px) {
  .stats-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
  }

  .rooms-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .devices-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .security-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ── Responsive: Desktop ── */
@media (min-width: 1024px) {
  .app__content {
    padding-bottom: var(--space-xl);
  }

  .bottom-nav {
    top: 0;
    bottom: auto;
    left: 0;
    width: var(--sidebar-width);
    height: 100dvh;
    flex-direction: column;
    justify-content: flex-start;
    padding: var(--space-xl) var(--space-md);
    gap: var(--space-xs);
    border-top: none;
    border-right: 1px solid rgba(255, 255, 255, 0.08);
  }

  .bottom-nav__item {
    flex-direction: row;
    justify-content: flex-start;
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    gap: var(--space-sm);
    min-width: unset;
  }

  .bottom-nav__item--active::before {
    top: 50%;
    left: 0;
    transform: translateY(-50%);
    width: 3px;
    height: 20px;
    border-radius: 0 var(--radius-full) var(--radius-full) 0;
  }

  .bottom-nav__item span {
    font-size: var(--font-size-sm);
  }

  .app__content {
    margin-left: var(--sidebar-width);
    padding: var(--space-lg);
    padding-bottom: var(--space-xl);
  }

  .topbar {
    margin-left: var(--sidebar-width);
    padding: var(--space-md) var(--space-lg);
  }

  .rooms-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .devices-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .climate-controls {
    flex-direction: row;
  }
}

/* ── Page Transition ── */
.page-enter {
  animation: pageEnter 0.35s ease-out forwards;
}

@keyframes pageEnter {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}