/* ==========================================================================
   Responsive: tablet (≤1024px) and mobile (≤720px).
   ========================================================================== */

/* Tablet ------------------------------------------------------------------ */

@media (max-width: 1024px) {
  .app {
    grid-template-columns: var(--sidebar-width-compact) 1fr;
  }

  .app-sidebar .app-brand-name,
  .app-sidebar .app-nav-group-label,
  .app-sidebar .app-nav-link span,
  .app-sidebar-footer {
    display: none;
  }

  .app-nav-link {
    justify-content: center;
    padding: var(--space-2);
  }

  .app-brand {
    justify-content: center;
    padding: 0;
  }

  .context-panel {
    display: none;
  }

  .dialer-layout {
    grid-template-columns: 1fr;
  }

  .contacts-layout,
  .voicemail-layout {
    grid-template-columns: 1fr;
  }

  .contact-detail {
    position: static;
  }

  .settings-layout {
    grid-template-columns: 1fr;
  }

  .settings-nav {
    flex-direction: row;
    flex-wrap: wrap;
    position: static;
  }

  .split-view {
    grid-template-columns: minmax(260px, 320px) 1fr;
  }
}

/* Mobile ------------------------------------------------------------------ */

@media (max-width: 720px) {
  .app {
    grid-template-columns: 1fr;
    grid-template-areas:
      "header"
      "main"
      "statusbar";
  }

  .app-sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    width: min(280px, 84vw);
    transform: translateX(-100%);
    transition: transform var(--duration-base) var(--ease);
    z-index: var(--z-drawer);
    box-shadow: var(--shadow-lg);
  }

  .app-sidebar.is-open {
    transform: translateX(0);
  }

  .app-sidebar .app-brand-name,
  .app-sidebar .app-nav-group-label,
  .app-sidebar .app-nav-link span,
  .app-sidebar-footer {
    display: revert;
  }

  .app-nav-link {
    justify-content: flex-start;
    padding: var(--space-2) var(--space-3);
  }

  .app-brand {
    justify-content: flex-start;
    padding: 0 var(--space-4);
  }

  .sidebar-backdrop.is-open {
    display: block;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .page-scroll,
  .page-body {
    padding: var(--space-4);
  }

  .page-header {
    padding: var(--space-4) var(--space-4) 0;
    flex-direction: column;
    align-items: flex-start;
  }

  .app-statusbar {
    gap: var(--space-3);
  }

  .header-search {
    display: none;
  }

  .split-view {
    grid-template-columns: 1fr;
  }

  .split-view > *:first-child {
    border-right: 0;
    border-bottom: 1px solid var(--color-border);
  }

  .keypad {
    grid-template-columns: repeat(3, 68px);
    gap: var(--space-2);
  }

  .keypad-key {
    width: 68px;
    height: 58px;
  }

  .device-grid {
    grid-template-columns: 1fr;
  }

  .toast-region {
    left: var(--space-3);
    right: var(--space-3);
  }

  .toast {
    min-width: 0;
    max-width: none;
  }

  .incoming-call-alert {
    left: var(--space-3);
    right: var(--space-3);
    width: auto;
  }

  .dialog {
    max-width: none;
  }
}

/* Compact desktop dialer -------------------------------------------------- */

@media (max-height: 760px) and (min-width: 721px) {
  .dialer-main {
    gap: var(--space-3);
    padding: var(--space-4);
  }

  .keypad-key {
    height: 56px;
  }

  .dial-display {
    min-height: 72px;
  }
}

/* Reduced motion ---------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Print (call reports) ---------------------------------------------------- */

@media print {
  .app-sidebar,
  .app-header,
  .app-statusbar,
  .toast-region,
  .btn {
    display: none !important;
  }

  .app {
    display: block;
    height: auto;
    overflow: visible;
  }

  .page-scroll {
    overflow: visible;
    padding: 0;
  }
}