body.app-shell {
  padding-bottom: calc(var(--tab-bar-height) + var(--safe-bottom) + var(--spacing-6));
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: calc(env(safe-area-inset-top) + var(--spacing-3)) var(--spacing-4) var(--spacing-3);
}

.app-header__glass {
  max-width: 1024px;
  margin: 0 auto;
  background: var(--color-glass);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-panel);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(26px);
  overflow: hidden;
}

.app-header__compact {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-4);
  min-height: 4rem;
  padding: var(--spacing-3) var(--spacing-4);
}

.app-header__brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  min-width: 0;
}

.app-header__logo {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.9rem;
  object-fit: cover;
  box-shadow: 0 8px 20px rgba(53, 94, 69, 0.18);
}

.app-header__compact-copy {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.app-header__app-name {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

.app-header__compact-page {
  font-size: 0.96rem;
  font-weight: 700;
  color: var(--color-text);
}

.app-header__large {
  display: grid;
  gap: var(--spacing-2);
  padding: 0 var(--spacing-4) var(--spacing-5);
  transform-origin: top center;
  transition: opacity 0.22s ease, transform 0.22s ease, max-height 0.22s ease, padding 0.22s ease;
}

.app-header__eyebrow {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.app-header__title {
  font-size: clamp(2rem, 6vw, 2.75rem);
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--color-text);
}

.app-header__subtitle {
  max-width: 42rem;
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--color-text-secondary);
}

.app-header.is-condensed .app-header__large {
  opacity: 0;
  transform: translateY(-0.75rem);
  max-height: 0;
  overflow: hidden;
  padding-bottom: 0;
  pointer-events: none;
}

.page-content {
  padding: 0 var(--spacing-4) calc(var(--tab-bar-height) + var(--safe-bottom) + var(--spacing-7));
}

.tab-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1000;
  padding: 0 var(--spacing-4) calc(var(--safe-bottom) + var(--spacing-3));
  pointer-events: none;
}

.tab-bar__rail {
  max-width: 1024px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: var(--spacing-2);
  padding: var(--spacing-2);
  background: rgba(248, 248, 252, 0.84);
  border: 1px solid rgba(255, 255, 255, 0.68);
  border-radius: calc(var(--radius-panel) + 2px);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(28px);
  pointer-events: auto;
}

.tab-bar__item {
  min-height: 3.6rem;
  display: grid;
  place-items: center;
  gap: 0.15rem;
  padding: var(--spacing-2) var(--spacing-1);
  border-radius: 1.05rem;
  text-decoration: none;
  color: var(--color-text-secondary);
  transition: background 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.tab-bar__item:hover {
  background: var(--color-tab-hover);
  color: var(--color-text);
}

.tab-bar__item.is-active {
  background: var(--color-tab-active);
  color: var(--color-accent-strong);
}

.tab-bar__icon {
  font-size: 1.05rem;
  line-height: 1;
}

.tab-bar__label {
  font-size: 0.76rem;
  font-weight: 700;
}

.btn-toggle-all {
  min-height: 2.5rem;
  padding: 0.55rem 0.95rem;
  border: 1px solid rgba(74, 124, 89, 0.14);
  border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--color-surface-solid) 78%, transparent);
  color: var(--color-accent-strong);
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.16s ease, transform 0.16s ease, border-color 0.16s ease;
  white-space: nowrap;
}

.btn-toggle-all:hover {
  background: var(--color-tab-hover);
  border-color: rgba(74, 124, 89, 0.22);
}

.shell-toast {
  position: fixed;
  right: var(--spacing-4);
  bottom: calc(var(--tab-bar-height) + var(--safe-bottom) + var(--spacing-4));
  z-index: 1100;
  padding: 0.7rem 1rem;
  border-radius: 0.9rem;
  background: var(--color-toast-bg);
  color: white;
  font-size: 0.88rem;
  font-weight: 600;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

@media (prefers-color-scheme: dark) {
  .tab-bar__rail {
    background: color-mix(in srgb, var(--color-surface-solid) 82%, transparent);
    border-color: var(--color-glass-border);
  }

  .btn-toggle-all {
    border-color: var(--color-border);
  }
}

.shell-toast.show {
  opacity: 1;
}

@media (max-width: 720px) {
  .app-header {
    padding-left: var(--spacing-3);
    padding-right: var(--spacing-3);
  }

  .app-header__compact {
    align-items: flex-start;
    flex-direction: column;
  }

  .btn-toggle-all {
    width: 100%;
  }

  .page-content {
    padding-left: var(--spacing-3);
    padding-right: var(--spacing-3);
  }

  .tab-bar {
    padding-left: var(--spacing-3);
    padding-right: var(--spacing-3);
  }

  .tab-bar__label {
    font-size: 0.7rem;
  }
}