/* App shell: header, sidebar, page container, mobile bottom nav. */

.app-header {
  position: sticky;
  top: 0;
  z-index: 1030;
  height: var(--mbms-header-h);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--mbms-border);
  box-shadow: 0 1px 0 rgba(15, 23, 42, 0.04);
  padding-left: max(0.75rem, env(safe-area-inset-left));
  padding-right: max(0.75rem, env(safe-area-inset-right));
}

.app-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--mbms-text);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.app-brand:hover {
  color: var(--mbms-text);
}

.app-brand img,
.app-brand svg {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}

.app-menu-btn {
  width: var(--mbms-touch);
  min-height: var(--mbms-touch);
  padding: 0;
}

.app-sidebar {
  display: none;
  width: var(--mbms-sidebar-w);
  background: var(--mbms-surface);
  border-right: 1px solid var(--mbms-border);
  padding: 1rem 0.75rem 1.5rem;
  overflow-y: auto;
}

.skip-link {
  position: absolute;
  left: 0.75rem;
  top: -3rem;
  z-index: 1100;
  background: var(--mbms-primary);
  color: #fff;
  padding: 0.5rem 0.8rem;
  border-radius: var(--mbms-radius-sm);
  font-weight: 600;
}

.skip-link:focus {
  top: 0.5rem;
  color: #fff;
}

.app-current-page {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--mbms-text);
  max-width: 11rem;
}

.app-nav-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--mbms-muted);
  padding: 0.45rem 0.75rem 0.45rem;
}

.app-nav-link {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  min-height: var(--mbms-touch);
  padding: 0.45rem 0.75rem;
  border-radius: var(--mbms-radius-sm);
  color: var(--mbms-secondary);
  text-decoration: none;
  font-weight: 500;
}

.app-nav-link .bi,
.app-bottom-nav .bi,
.app-menu-btn .bi {
  font-size: 1.15rem;
  line-height: 1;
  width: 1.25rem;
  text-align: center;
  flex: 0 0 auto;
}

.app-nav-link:hover,
.app-nav-link:focus-visible {
  background: var(--mbms-primary-soft);
  color: var(--mbms-primary);
}

.app-nav-link.is-active {
  background: var(--mbms-primary-soft);
  color: var(--mbms-primary);
  font-weight: 600;
  box-shadow: inset 3px 0 0 var(--mbms-primary);
  border-radius: 0 var(--mbms-radius-sm) var(--mbms-radius-sm) 0;
}

[dir="rtl"] .app-nav-link.is-active {
  box-shadow: inset -3px 0 0 var(--mbms-primary);
  border-radius: var(--mbms-radius-sm) 0 0 var(--mbms-radius-sm);
}

.app-nav-link.is-disabled,
.app-nav-link.disabled {
  opacity: 0.5;
  pointer-events: none;
}

.app-main {
  min-height: calc(100vh - var(--mbms-header-h));
  padding: var(--mbms-space);
  padding-bottom: calc(var(--mbms-bottom-nav-h) + 1.25rem + env(safe-area-inset-bottom));
}

.app-main:focus {
  outline: none;
}

.app-page {
  max-width: 1180px;
  margin: 0 auto;
  width: 100%;
  min-width: 0;
}

.app-main {
  overflow-x: clip;
}

.app-bottom-nav {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1030;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  min-height: var(--mbms-bottom-nav-h);
  background: var(--mbms-surface);
  border-top: 1px solid var(--mbms-border);
  padding-bottom: env(safe-area-inset-bottom);
}

.app-bottom-nav a,
.app-bottom-nav button {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.15rem;
  min-height: var(--mbms-touch);
  color: var(--mbms-muted);
  text-decoration: none;
  font-size: 0.75rem;
  font-weight: 600;
  background: none;
  border: 0;
  padding: 0.25rem 0.15rem;
}

.app-bottom-nav a.is-active,
.app-bottom-nav button.is-active {
  color: var(--mbms-primary);
}

.app-bottom-nav a.is-disabled {
  opacity: 0.45;
  pointer-events: none;
}

.app-offcanvas {
  width: min(22rem, 92vw);
}

.app-offcanvas .app-nav-link {
  margin-bottom: 0.15rem;
}

@media (min-width: 768px) {
  .app-header .app-menu-btn {
    display: none;
  }

  .app-shell {
    display: flex;
  }

  .app-sidebar {
    display: flex;
    flex-direction: column;
    position: sticky;
    top: var(--mbms-header-h);
    height: calc(100vh - var(--mbms-header-h));
    flex-shrink: 0;
  }

  .app-main {
    flex: 1;
    min-width: 0;
    padding: 1.5rem;
    padding-bottom: 2rem;
  }

  .app-bottom-nav {
    display: none;
  }
}

@media (max-width: 767.98px) {
  .app-header .app-header-actions {
    display: none !important;
  }

  /* Keep focused fields above the fixed bottom bar when the browser scrolls them into view. */
  html {
    scroll-padding-bottom: calc(var(--mbms-bottom-nav-h) + 1rem + env(safe-area-inset-bottom));
  }

  input,
  select,
  textarea,
  button,
  .form-control,
  .form-select {
    scroll-margin-bottom: calc(var(--mbms-bottom-nav-h) + 0.75rem + env(safe-area-inset-bottom));
  }
}

html[dir="rtl"] {
  --mbms-font: "Vazirmatn", Tahoma, "Segoe UI", sans-serif;
}

html[dir="rtl"] body {
  font-family: var(--mbms-font);
}

html[dir="rtl"] .app-sidebar {
  border-right: 0;
  border-left: 1px solid var(--mbms-border);
}

html[dir="rtl"] .app-nav-label {
  letter-spacing: 0;
  text-transform: none;
}

html[dir="rtl"] .skip-link {
  left: auto;
  right: 0.75rem;
}