/**
 * App-weite Mobile-Optimierung für VertrauensPost
 */

:root {
  --touch-min: 44px;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-top: env(safe-area-inset-top, 0px);
}

@supports (padding: max(0px)) {
  body {
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
  }
  .header {
    padding-top: max(0.75rem, var(--safe-top));
  }
  .dsgvo-footer-fixed {
    padding-bottom: max(0.4rem, var(--safe-bottom));
  }
  #login-screen {
    padding-bottom: max(1rem, var(--safe-bottom));
  }
}

/* Nav-Backdrop (Menü offen) */
.nav-backdrop {
  position: fixed;
  inset: 0;
  z-index: 1095;
  background: rgba(0, 0, 0, 0.55);
  -webkit-tap-highlight-color: transparent;
}
.nav-backdrop.hidden { display: none !important; }

/* Touch-freundliche Bedienelemente */
@media (max-width: 768px) {
  input[type="email"],
  input[type="password"],
  input[type="text"],
  input[type="search"],
  input[type="number"],
  input[type="tel"],
  input[type="url"],
  select,
  textarea {
    font-size: 16px;
    min-height: var(--touch-min);
  }

  #login-form input,
  #register-form input {
    min-height: var(--touch-min);
  }

  #login-form button,
  #register-form button {
    min-height: var(--touch-min);
    width: 100%;
  }

  .btn-primary,
  .btn-secondary,
  .btn-ghost,
  .btn-warning,
  .btn-danger,
  .btn-text {
    min-height: var(--touch-min);
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .btn-sm {
    min-height: 40px;
    padding: 0.45rem 0.75rem;
  }

  .nav-toggle {
    min-width: var(--touch-min);
    min-height: var(--touch-min);
    align-items: center;
    justify-content: center;
  }

  body:not(.is-phone) .nav-link {
    min-height: var(--touch-min);
    display: flex;
    align-items: center;
    padding: 0.65rem 0.85rem;
    font-size: 1rem;
  }

  .content {
    padding: 1rem 0.75rem;
    padding-bottom: max(4.5rem, calc(3.5rem + var(--safe-bottom)));
    max-width: none;
  }

  #app-shell:not(.mail-view-active) .content {
    padding-bottom: max(5rem, calc(4rem + var(--safe-bottom)));
  }

  .card {
    padding: 1rem;
    margin-left: 0;
    margin-right: 0;
  }

  .page-header {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
    margin-bottom: 1rem;
  }

  .page-header h2 {
    font-size: 1.25rem;
  }

  .page-actions {
    width: 100%;
  }

  .page-actions .btn-primary,
  .page-actions .btn-secondary,
  .page-actions .btn-ghost {
    flex: 1 1 auto;
    min-width: 0;
  }

  .form-group label {
    font-size: 0.95rem;
  }

  .table-wrap {
    margin: 0 -0.25rem;
    -webkit-overflow-scrolling: touch;
  }

  table {
    font-size: 0.82rem;
  }

  th, td {
    padding: 0.5rem 0.45rem;
    word-break: break-word;
  }

  .tracking-kpi-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .tracking-kpi-val {
    font-size: 1.25rem;
  }

  .tracking-bars {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    min-height: 6rem;
  }

  .modal {
    padding: 0;
    align-items: flex-end;
  }

  .modal-content {
    max-width: none;
    width: 100%;
    max-height: 92vh;
    max-height: 92dvh;
    border-radius: var(--radius) var(--radius) 0 0;
    margin: 0;
  }

  .modal-preview .modal-content {
    width: 100%;
    max-width: none;
    max-height: 95dvh;
  }

  .modal-preview-iframe-wrap,
  .modal-preview-iframe-wrap iframe {
    min-height: 50vh;
  }

  .modal-content--wide {
    max-width: none !important;
    width: 100% !important;
  }

  .template-preview-wrap {
    grid-template-columns: 1fr;
  }

  .template-preview-pane {
    position: static;
  }

  .dsgvo-footer-fixed {
    font-size: 0.68rem;
    line-height: 1.35;
    padding: 0.35rem 0.65rem;
    padding-bottom: max(0.35rem, var(--safe-bottom));
  }

  .user-limit-info {
    font-size: 0.78rem;
    text-align: left;
  }

  .header-start .logo {
    font-size: 0.95rem;
  }


  .mail-side-tabs {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    gap: 0.15rem;
    padding-bottom: 0.25rem;
  }

  .mail-side-tabs::-webkit-scrollbar { display: none; }

  .mail-tab {
    flex-shrink: 0;
    min-height: 40px;
    padding: 0.45rem 0.55rem;
    font-size: 0.72rem;
  }

  .mail-compose-overlay--windowed {
    padding: 0;
  }

  .mail-compose-overlay--windowed .mail-compose-window {
    width: 100%;
    height: 100%;
    max-height: 100dvh;
    border-radius: 0;
  }

  .mail-compose-titlebar {
    padding: 0.5rem;
    flex-wrap: wrap;
  }

  .mail-compose-titlebar .mail-compose-from {
    max-width: 100%;
    order: 3;
    flex: 1 1 100%;
  }

  .mail-compose-winbtn {
    width: var(--touch-min);
    height: var(--touch-min);
  }

  .mail-compose-ribbon {
    padding: 0.4rem;
    gap: 0.35rem;
  }

  .mail-compose-ribbon-group {
    flex-wrap: wrap;
    border-right: none;
    padding-right: 0;
    margin-right: 0;
    width: 100%;
  }

  .mail-compose-ribbon button,
  .mail-compose-ribbon select {
    min-height: 40px;
    font-size: 0.85rem;
    padding: 0.4rem 0.55rem;
  }

  .mail-compose-html-prompt-group {
    flex: 1 1 100%;
    width: 100%;
  }

  .mail-compose-field-row {
    flex-wrap: wrap;
  }

  .mail-compose-field-row label {
    flex: 0 0 3rem;
  }

  .mail-compose-field-row input {
    flex: 1 1 calc(100% - 3.5rem);
    min-height: var(--touch-min);
  }

  .mail-compose-footer {
    flex-direction: column;
    align-items: stretch;
  }

  .mail-compose-footer .btn-primary,
  .mail-compose-footer .btn-ghost {
    width: 100%;
    min-height: var(--touch-min);
  }

  #mail-compose-hint,
  .mail-compose-footer .subtitle {
    margin-left: 0;
    text-align: center;
  }

  .mail-ai-drawer {
    padding-bottom: var(--safe-bottom);
  }

  .mail-reply-compose .mail-input,
  .mail-reply-compose textarea {
    min-height: var(--touch-min);
  }

  .contact-grid {
    grid-template-columns: 1fr !important;
  }

  .empty-state {
    padding: 1rem;
    font-size: 0.9rem;
  }
}

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

  .header-start .btn-ghost.btn-sm {
    padding: 0.35rem 0.5rem;
    font-size: 0.75rem;
  }

  .mail-chrome-actions .btn-ghost,
  .mail-chrome-actions .btn-primary {
    font-size: 0.72rem;
    padding: 0.35rem 0.4rem;
  }

  .mail-msg-delete {
    opacity: 1;
    min-width: var(--touch-min);
    min-height: var(--touch-min);
  }

  .mail-msg-checkbox,
  .mail-select-all input {
    width: 1.2rem;
    height: 1.2rem;
  }

  .mail-list-bulk-actions .btn-ghost,
  .mail-list-bulk-actions .btn-text {
    min-height: var(--touch-min);
  }
}