/**
 * Modul: Layout
 * Zweck: App-Shell-Layout, Navigation (Bottom Mobile / Sidebar Desktop), Responsive Grid
 * Abhängigkeiten: tokens.css, reset.css
 *
 * Navigation:
 *   Mobile (<1024px):  Bottom-Nav-Bar, 5 Haupt-Module
 *   Desktop (1024–1279px): Collapsed Sidebar, nur Icons (56px)
 *   Wide Desktop (>1280px): Expanded Sidebar mit Labels (220px)
 *
 * Referenz: Apple HIG Sidebar-Pattern
 */

/* --------------------------------------------------------
 * App-Shell
 * -------------------------------------------------------- */
.app-shell {
  display: flex;
  flex-direction: column;
  /* -webkit-fill-available als iOS-Fallback: In manchen iOS-WebKit-Versionen
   * ist 100dvh minimal kleiner als die tatsächliche WKWebView-Höhe, was zu einem
   * sichtbaren Streifen unten führt. -webkit-fill-available füllt zuverlässig. */
  height: -webkit-fill-available;
  height: 100dvh;
}

/* --------------------------------------------------------
 * Loading-Screen
 * -------------------------------------------------------- */
.app-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100dvh;
  background-color: var(--color-bg);
}

.app-loading__logo {
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-accent);
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* --------------------------------------------------------
 * Seiten-Übergangs-Animation (direktional)
 * -------------------------------------------------------- */
/* Basis: unsichtbar vor Animation */
.page-transition {
  opacity: 0;
}

/* Nach der In-Animation soll es sichtbar bleiben → direkt auf der Klasse */
.page-transition--in-right,
.page-transition--in-left {
  opacity: 1;
  transform: none;
}

/* Keyframes OHNE forwards */
@keyframes page-slide-in-right {
  from { opacity: 0; transform: translateX(20px); }
  to   { opacity: 1; transform: none; }
}
@keyframes page-slide-in-left {
  from { opacity: 0; transform: translateX(-20px); }
  to   { opacity: 1; transform: none; }
}
@keyframes page-out-left {
  from { opacity: 1; transform: none; }
  to   { opacity: 0; transform: translateX(-20px); }
}
@keyframes page-out-right {
  from { opacity: 1; transform: none; }
  to   { opacity: 0; transform: translateX(20px); }
}

@keyframes page-crossfade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.page-transition--in-right {
  animation: page-slide-in-right 0.2s var(--ease-out);
}
.page-transition--in-left {
  animation: page-slide-in-left 0.2s var(--ease-out);
}
.page-transition--out-left {
  animation: page-out-left 0.12s ease forwards; /* ← out braucht forwards, wird ja eh entfernt */
  pointer-events: none;
}
.page-transition--out-right {
  animation: page-out-right 0.12s ease forwards;
  pointer-events: none;
}

.page-transition--crossfade {
  animation: page-crossfade-in 0.18s var(--ease-out);
  opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
  .page-transition--in-right,
  .page-transition--in-left {
    animation: none;
    opacity: 1;
  }
  .page-transition--out-left,
  .page-transition--out-right {
    animation: none;
  }
  .page-transition--crossfade {
    animation: none;
    opacity: 1;
  }
}

/* --------------------------------------------------------
 * Layout: Mobile (Standard, < 1024px)
 * -------------------------------------------------------- */
.app-content {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  overscroll-behavior-y: contain;
  -webkit-overflow-scrolling: touch;
}

/* Sidebar auf Mobile verstecken */
.nav-sidebar {
  display: none;
}

/* --------------------------------------------------------
 * Bottom Navigation (Mobil + Tablet)
 *
 * Kompakte Bar: 56px Höhe, Icons 22px, Labels 11px.
 * Leichter Blur-Effekt für Glassmorphismus.
 * -------------------------------------------------------- */
.nav-bottom {
  /* Flex-Kind von .app-shell statt position: fixed - zuverlässiger auf iOS PWA.
   * position: fixed kann durch will-change: transform in iOS-Compositor-Layern
   * falsch referenziert werden. Als Flex-Kind am Ende der 100dvh-App-Shell ist
   * die Position garantiert am Viewport-Bottom. */
  position: relative;
  flex-shrink: 0;
  width: 100%;
  background-color: color-mix(in srgb, var(--color-surface) 85%, transparent);
  border-top: 1px solid var(--color-border-subtle);
  display: flex;
  flex-direction: column;
  z-index: var(--z-nav);
  backdrop-filter: var(--blur-md) saturate(180%);
  -webkit-backdrop-filter: var(--blur-md) saturate(180%);
  transition: transform 0.2s var(--ease-out);
}

.nav-bottom--hidden {
  transform: translateY(100%);
}

/* ── Items-Reihe ── */
.nav-bottom__items {
  display: flex;
  height: var(--nav-height-mobile);
}

/* ── More-Button (Button-Basis, ansonsten wie nav-item) ── */
.nav-item--more,
.nav-item--kitchen,
.nav-item--search {
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
}

.nav-item--active {
  color: var(--active-module-accent, var(--color-accent));
}

/* ── More-Backdrop ── */
.more-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background-color: var(--color-overlay);
  z-index: calc(var(--z-nav) + 1);
  backdrop-filter: var(--blur-2xs);
  -webkit-backdrop-filter: var(--blur-2xs);
}

.more-backdrop--visible {
  display: block;
  animation: fade-in 0.15s ease;
}

@keyframes fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ── More-Sheet ── */
.more-sheet {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  padding: var(--space-4) var(--space-4) calc(var(--space-4) + var(--safe-area-inset-bottom));
  z-index: calc(var(--z-nav) + 2);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  transform: translateY(100%);
  transition: transform 0.25s var(--ease-out);
}

.more-sheet[aria-hidden="false"] {
  transform: translateY(0);
}

/* ── More-Sheet Drag-Handle ── */
.more-sheet__handle {
  grid-column: 1 / -1;
  width: 36px;
  height: 4px;
  border-radius: var(--radius-full);
  background-color: var(--color-border);
  margin: 0 auto var(--space-2);
}

/* ── More-Sheet Suchleiste ── */
.more-sheet__search {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-lg);
  background-color: var(--color-surface-elevated);
  border: 1.5px solid var(--color-border);
  color: var(--color-text-tertiary);
  cursor: text;
  margin-bottom: var(--space-1);
  -webkit-tap-highlight-color: transparent;
  transition: border-color var(--transition-fast), background-color var(--transition-fast), transform 0.1s ease;
  user-select: none;
}

.more-sheet__search:hover {
  border-color: var(--color-border-strong, var(--color-border));
  background-color: var(--color-surface-hover);
}

.more-sheet__search:active {
  outline: none;
  border-color: var(--color-accent);
  background-color: color-mix(in srgb, var(--color-accent) 8%, var(--color-surface-elevated));
  transform: scale(0.985);
}

.more-sheet__search:focus {
  outline: none;
  border-color: var(--color-accent);
}

.more-sheet__search-icon {
  width: var(--space-4);
  height: var(--space-4);
  flex-shrink: 0;
  transition: color var(--transition-fast);
}

.more-sheet__search:hover .more-sheet__search-icon,
.more-sheet__search:active .more-sheet__search-icon {
  color: var(--color-accent);
}

.more-sheet__search-placeholder {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
  flex: 1;
}

.more-sheet__search-kbd {
  display: none;
  font-size: var(--text-xs);
  color: var(--color-text-quaternary, var(--color-text-tertiary));
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 1px 5px;
  font-family: inherit;
  line-height: 1.4;
  flex-shrink: 0;
}

@media (min-width: 1024px) {
  html:not(.search-kbd-done) .more-sheet__search-kbd {
    display: inline;
  }
}

/* ── More-Item ── */
.more-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-3) var(--space-2);
  border-radius: var(--radius-lg);
  background-color: var(--color-surface-elevated);
  color: var(--color-text-secondary);
  text-decoration: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  transition: background-color var(--transition-fast), color var(--transition-fast);
  -webkit-tap-highlight-color: transparent;
  min-height: var(--target-lg);
}

.more-item:active {
  background-color: var(--color-surface-hover);
  transform: scale(0.96);
}

.more-item[aria-current="page"] {
  color: var(--active-module-accent, var(--color-accent));
  background-color: color-mix(in srgb, var(--active-module-accent, var(--color-accent)) 12%, transparent);
}

.more-item__icon {
  width: var(--space-6);
  height: var(--space-6);
  flex-shrink: 0;
}

.more-item__label {
  font-size: var(--text-xs);
  font-weight: var(--font-weight-medium);
  text-align: center;
  line-height: 1.2;
}

/* ── Such-Overlay ── */
.search-overlay {
  position: fixed;
  inset: 0;
  background-color: var(--color-surface);
  z-index: calc(var(--z-nav) + 3);
  display: flex;
  flex-direction: column;
  transform: translateY(100%);
  transition: transform 0.25s var(--ease-out);
}

.search-overlay--visible {
  transform: translateY(0);
}

.search-overlay__header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: calc(var(--space-3) + var(--safe-area-inset-top)) var(--space-4) var(--space-3);
  border-bottom: 1px solid var(--color-border-subtle);
}

.search-overlay__input {
  flex: 1;
  height: var(--target-lg);
  padding: 0 var(--space-3);
  border-radius: var(--radius-lg);
  border: 1.5px solid var(--color-border);
  background-color: var(--color-surface-elevated);
  color: var(--color-text-primary);
  font-size: var(--text-base);
}

.search-overlay__input:focus {
  outline: none;
  border-color: var(--color-accent);
}

.search-overlay__close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--target-base);
  height: var(--target-base);
  border-radius: var(--radius-full);
  border: none;
  background: var(--color-surface-elevated);
  color: var(--color-text-secondary);
  cursor: pointer;
  flex-shrink: 0;
  -webkit-tap-highlight-color: transparent;
}

.search-overlay__close-icon {
  width: var(--space-5);
  height: var(--space-5);
}

.search-overlay__results {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-3) var(--space-4) calc(var(--space-4) + var(--safe-area-inset-bottom));
}

.search-overlay__empty {
  text-align: center;
  color: var(--color-text-tertiary);
  margin-top: var(--space-8);
}

.search-section {
  margin-bottom: var(--space-5);
}

.search-section__heading {
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  letter-spacing: 0.01em;
  margin-bottom: var(--space-2);
}

.search-result {
  display: block;
  width: 100%;
  text-align: left;
  padding: var(--space-3);
  border-radius: var(--radius-md);
  border: none;
  background: var(--color-surface-elevated);
  color: var(--color-text-primary);
  font-size: var(--text-sm);
  cursor: pointer;
  margin-bottom: var(--space-2);
  transition: background-color var(--transition-fast);
  -webkit-tap-highlight-color: transparent;
}

.search-result:active {
  background-color: var(--color-surface-hover);
}

/* ── Nav-Item (Bottom-Bar): Basis-State ── */
.nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-0h);
  padding: var(--space-1) var(--space-1);
  color: var(--color-text-tertiary);
  transition: color var(--transition-fast), transform 0.12s ease;
  -webkit-tap-highlight-color: transparent;
  min-height: var(--target-lg);
  min-width: var(--target-lg);
  text-decoration: none;
  position: relative;
}

.nav-item__icon-wrap {
  position: relative;
  display: inline-flex;
  flex-shrink: 0;
}

.nav-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 var(--space-1);
  border-radius: var(--radius-full);
  background-color: var(--color-danger);
  color: var(--color-text-on-accent);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-bold);
}

.nav-item__icon-wrap .nav-badge {
  position: absolute;
  top: calc(-1 * var(--space-1));
  right: calc(-1 * var(--space-1));
}

.nav-item:active {
  transform: scale(0.92);
  transition-duration: 0.06s;
}

/* ── Nav-Item: Aktiv ── */
.nav-item[aria-current="page"] {
  color: var(--active-module-accent, var(--color-accent));
}

/* Pill-Hintergrund hinter dem Icon (nur Bottom-Nav, nicht Sidebar) */
.nav-bottom .nav-item[aria-current="page"] .nav-item__icon-wrap {
  background-color: color-mix(in srgb, var(--active-module-accent, var(--color-accent)) 14%, transparent);
  border-radius: var(--radius-lg);
  padding: var(--space-1) var(--space-4);
  margin-bottom: 1px;
  transition: background-color var(--transition-fast);
}

.nav-item__icon {
  width: var(--space-5);
  height: var(--space-5);
  flex-shrink: 0;
}

.nav-item__label {
  font-size: var(--text-xs);
  font-weight: var(--font-weight-medium);
  line-height: 1;
}

/* --------------------------------------------------------
 * Page FAB - Schwebender Erstellen-Button (alle Breakpoints)
 *
 * Einheitlicher runder Plus-Button auf allen Unterseiten.
 * Mobile: über der Bottom-Nav. Desktop: unten rechts im Content.
 * Toolbar-"Neu"-Buttons werden überall versteckt.
 * -------------------------------------------------------- */
@keyframes fab-in {
  from { transform: scale(0.6) translateY(8px); opacity: 0; }
  to   { transform: scale(1)   translateY(0);   opacity: 1; }
}

.page-fab {
  position: fixed;
  bottom: calc(var(--nav-bottom-height) + 24px + var(--safe-area-inset-bottom));
  right: var(--space-4);
  width: 52px;
  height: 52px;
  border-radius: var(--radius-full);
  background-color: var(--module-accent, var(--color-accent));
  color: var(--color-text-on-accent);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border: none;
  z-index: calc(var(--z-nav) - 1);
  transition: transform var(--transition-base), background-color var(--transition-fast);
  -webkit-tap-highlight-color: transparent;
  animation: fab-in 0.35s var(--ease-out) backwards;
}

.page-fab:hover {
  background-color: color-mix(in srgb, var(--module-accent, var(--color-accent)) 85%, black);
}

.page-fab:active {
  transform: scale(0.92);
}

.page-fab:focus-visible {
  outline: 2px solid var(--color-bg);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px var(--color-accent);
}

/* Long Loop: FAB-Animation nach N Aufrufen deaktivieren */
html.fab-anim-done .page-fab {
  animation: none;
}

/* Desktop: FAB Position anpassen (keine Bottom-Nav) und etwas kleiner */
@media (min-width: 1024px) {
  .page-fab {
    bottom: var(--space-8);
    right: var(--space-8);
    width: var(--target-lg);
    height: var(--target-lg);
  }
}

/* Toolbar-"Neu"-Buttons überall verstecken - FAB übernimmt */
#btn-new-task,
#notes-add-btn,
#contacts-add-btn,
#budget-add,
#cal-add {
  display: none !important;
}

/* ================================================================
 * Sidebar Navigation - Desktop (≥ 1024px)
 *
 * Design: Flach, kein Neumorphismus. Dezenter Seitenrand.
 * Aktiver State: Hintergrund-Highlight + Akzentstreifen links.
 * Hover: Subtile Hintergrundfarbe, kein Shadow.
 * ================================================================ */
@media (min-width: 1024px) {
  .app-shell {
    flex-direction: row;
  }

  .app-content {
    flex: 1;
    min-height: 0;
    padding-bottom: 0;
    margin-left: var(--sidebar-width);
    transition: margin-left var(--transition-slow);
  }

  .nav-bottom {
    display: none;
  }

  /* ── Sidebar anzeigen ── */
  .nav-sidebar {
    display: flex;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    border-right: 1px solid var(--color-border-subtle);
    flex-direction: column;
    z-index: var(--z-nav);
    padding: var(--space-4) 0 var(--space-4);
    transition: width var(--transition-slow);
    overflow: hidden;
  }

  /* ── Logo: Icon-only bei collapsed ── */
  .nav-sidebar__logo {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--space-2) 0 var(--space-4);
    margin-bottom: var(--space-1);
    flex-shrink: 0;
  }

  /* SVG-Logomark (via DOM API in router.js injiziert, Gradient im SVG selbst) */
  .nav-sidebar__logomark {
    width: var(--target-sm);
    height: var(--target-sm);
    flex-shrink: 0;
  }

  .nav-sidebar__logomark svg {
    width: 100%;
    height: 100%;
    display: block;
  }

  /* Logo-Text verstecken im collapsed-Modus */
  .nav-sidebar__brand-text {
    display: none;
  }

  /* ── Nav-Items Container ── */
  .nav-sidebar__items {
    display: flex;
    flex-direction: column;
    gap: var(--space-0h);
    padding: 0 var(--space-2);
    flex: 1;
    overflow-y: auto;
    scrollbar-width: none;
  }
  .nav-sidebar__items::-webkit-scrollbar { display: none; }

  /* ── Nav-Item: Sidebar-Basis ── */
  .nav-sidebar .nav-item {
    flex-direction: row;
    justify-content: center;
    align-items: center;
    border-radius: var(--radius-sm);
    padding: var(--space-2) var(--space-2);
    gap: 0;
    min-height: var(--target-lg);
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    background: transparent;
    transition:
      color var(--transition-fast),
      background-color var(--transition-fast);
    position: relative;
  }

  .nav-sidebar .nav-item__icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
  }

  .nav-sidebar .nav-item__label {
    display: none;
    font-size: var(--text-sm);
    font-weight: var(--font-weight-medium);
    white-space: nowrap;
    overflow: hidden;
  }

  /* ── Hover: dezente Hintergrundfarbe ── */
  .nav-sidebar .nav-item:hover:not([aria-current="page"]) {
    color: var(--color-text-primary);
    background-color: var(--color-surface-3);
  }

  /* ── Aktiv: Hintergrund-Highlight + Akzent-Indikator ── */
  .nav-sidebar .nav-item[aria-current="page"] {
    color: var(--active-module-accent, var(--color-accent));
    font-weight: var(--font-weight-semibold);
    background-color: color-mix(in srgb, var(--active-module-accent, var(--color-accent)) 12%, transparent);
  }

  /* Akzentstreifen links */
  .nav-sidebar .nav-item[aria-current="page"]::before {
    content: '';
    position: absolute;
    left: 0;
    top: var(--space-2);
    bottom: var(--space-2);
    width: 3px;
    border-radius: 0 var(--radius-full) var(--radius-full) 0;
    background: var(--active-module-accent, var(--color-accent));
  }

  /* Active-Press auf Desktop */
  .nav-sidebar .nav-item:active {
    transform: scale(0.97);
  }

  /* ── Einstellungen ans Ende ── */
  .nav-sidebar__items > a:last-child {
    margin-top: auto;
  }
}

/* Tooltip für collapsed Sidebar (nur Icons sichtbar bei 1024–1439px) */
@media (min-width: 1024px) and (max-width: 1279px) {
  .nav-sidebar .nav-item {
    overflow: visible;
  }

  .nav-sidebar .nav-item::after {
    content: attr(title);
    position: absolute;
    left: calc(var(--sidebar-width) + var(--space-2));
    top: 50%;
    transform: translateY(-50%);
    background: var(--color-surface);
    color: var(--color-text-primary);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border-subtle);
    white-space: nowrap;
    font-size: var(--text-sm);
    font-weight: var(--font-weight-medium);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.15s ease;
    z-index: calc(var(--z-nav) + 10);
  }

  .nav-sidebar .nav-item:hover::after {
    opacity: 1;
  }
}

/* ================================================================
 * Sidebar Expanded (≥ 1280px) - Labels sichtbar
 * ================================================================ */
@media (min-width: 1280px) {
  :root {
    --sidebar-width: var(--sidebar-width-expanded);
  }

  /* Logo: Text-Variante */
  .nav-sidebar__logo {
    justify-content: flex-start;
    padding: var(--space-2) var(--space-5) var(--space-4);
    gap: var(--space-3);
  }

  .nav-sidebar__logomark {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
  }

  .nav-sidebar__brand-text {
    display: flex;
    flex-direction: column;
    min-width: 0;
    line-height: 1.1;
  }

  .nav-sidebar__brand-name {
    font-size: var(--text-lg);
    font-weight: var(--font-weight-bold);
    letter-spacing: -0.6px;
    color: var(--color-text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .nav-sidebar__version {
    margin-top: var(--space-0h);
    font-size: 10px;
    font-weight: var(--font-weight-medium);
    letter-spacing: 0.04em;
    color: var(--color-text-tertiary);
  }

  .nav-sidebar__items {
    padding: 0 var(--space-2);
    gap: var(--space-0h);
  }

  /* Nav-Items: horizontal mit Label */
  .nav-sidebar .nav-item {
    justify-content: flex-start;
    padding: var(--space-2) var(--space-3);
    gap: var(--space-3);
  }

  .nav-sidebar .nav-item__icon {
    width: 18px;
    height: 18px;
  }

  .nav-sidebar .nav-item__label {
    display: block;
    font-weight: inherit;
  }
}

/* --------------------------------------------------------
 * Seiten-Container
 * -------------------------------------------------------- */
.page {
  padding: var(--space-4);
  max-width: var(--content-max-width);
  margin: 0 auto;
}

.page__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-5);
  gap: var(--space-4);
}

.page__title {
  font-size: var(--text-xl);
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.5px;
  text-wrap: balance;
}

@media (min-width: 1024px) {
  .page {
    padding: var(--space-8) var(--space-8);
  }

  .page__title {
    font-size: var(--text-2xl);
    letter-spacing: -0.8px;
  }
}

@media (min-width: 1440px) {
  .page {
    padding: var(--space-8) var(--space-10);
  }
}

/* --------------------------------------------------------
 * Cards
 *
 * Einheitliches Card-Pattern für alle Module:
 * - Padding: 16px (mobile), 20px (desktop)
 * - Radius: 12px
 * - Shadow: subtle (sm)
 * - Internes Spacing: 8–12px
 * - Hover auf Desktop: leichter Lift (1px)
 *
 * Varianten:
 * .card              - Basis (kein Padding)
 * .card--padded      - Mit Padding
 * .card--compact     - Enges Padding (12px)
 * .card--flat        - Kein Shadow, nur Border
 * .card--interactive - Hover-Lift + Cursor
 * -------------------------------------------------------- */
.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.card--padded {
  padding: var(--space-4);
}

.card--compact {
  padding: var(--space-3);
}

.card--flat {
  box-shadow: none;
  border: 1px solid var(--color-border-subtle);
}

.card--interactive {
  cursor: pointer;
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-fast),
    background-color var(--transition-fast);
}

.card--interactive:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.card--interactive:active {
  transform: scale(0.98);
  background-color: var(--color-surface-3);
  box-shadow: var(--shadow-sm);
}

.card--interactive:focus-visible {
  outline: 2px solid var(--active-module-accent, var(--color-accent));
  outline-offset: 2px;
}

@media (min-width: 1024px) {
  .card--padded {
    padding: var(--space-5);
  }
}

/* ── Card-Inhalts-Utilities ── */
.card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding-bottom: var(--space-3);
  margin-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border-subtle);
}

.card__title {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  text-wrap: balance;
}

.card__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

/* --------------------------------------------------------
 * Modal-Basis
 *
 * Einheitliches Modal-Pattern für alle Module:
 * - Mobile: Bottom-Sheet (gerundet oben)
 * - Desktop: Zentriert (max-width variabel)
 * - Overlay: var(--color-overlay)
 * - Padding: 16px
 * - Radius: 16px
 * -------------------------------------------------------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: var(--color-overlay);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: max(var(--space-3), env(safe-area-inset-top))
           max(var(--space-3), env(safe-area-inset-right))
           max(var(--space-3), env(safe-area-inset-bottom))
           max(var(--space-3), env(safe-area-inset-left));
  animation: modal-overlay-in 0.2s ease forwards;
  /* iOS Safari: click-Events auf non-interactive divs erfordern cursor:pointer */
  cursor: pointer;
}

@media (min-width: 768px) {
  .modal-overlay {
    padding: var(--space-6);
  }
}

.modal-panel {
  background-color: var(--color-surface);
  width: 100%;
  max-height: calc(100dvh - (2 * var(--space-3)) - env(safe-area-inset-top) - env(safe-area-inset-bottom));
  overflow: hidden;
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-subtle);
  box-shadow: var(--shadow-lg);
  animation: modal-slide-up 0.25s var(--ease-out) forwards;
  /* Cursor vom Overlay zurücksetzen */
  cursor: default;
}

@media (min-width: 768px) {
  .modal-panel {
    max-width: 520px;
    max-height: calc(100dvh - (2 * var(--space-6)));
    border-radius: var(--radius-lg);
    animation: modal-scale-in 0.2s var(--ease-out) forwards;
  }
  .modal-panel--sm { max-width: 400px; }
  .modal-panel--lg { max-width: 680px; }
}

.modal-panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4);
  border-bottom: 1px solid var(--color-border-subtle);
  background-color: var(--color-surface);
  flex-shrink: 0;
}

.modal-panel__title {
  font-size: var(--text-md);
  font-weight: var(--font-weight-semibold);
  text-wrap: balance;
}

.modal-panel__close {
  width: var(--target-base);
  height: var(--target-base);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
  transition: background-color var(--transition-fast);
  position: relative;
  flex-shrink: 0;
}

.modal-panel__close:hover {
  background-color: var(--color-surface-3);
}

.modal-panel__body {
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
}

/* Modal-Content-Grids (z. B. 2 Spalten in Formularen) */
.modal-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  align-items: stretch;
}

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

.modal-grid > * {
  min-width: 0;
}

.modal-grid > .form-group {
  margin-bottom: 0;
}

/* Gleich hohe Karten/Boxen in Modal-Grids */
.modal-panel__body .grid {
  align-items: stretch;
}

.modal-panel__body .grid > .card {
  height: 100%;
  display: flex;
  flex-direction: column;
}

@media (max-width: 639px) {
  .modal-grid--2 {
    grid-template-columns: 1fr;
  }
}

.form-stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-2);
}

.modal-panel__footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-top: 1px solid var(--color-border-subtle);
}

@keyframes modal-overlay-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes modal-slide-up {
  from { transform: translateY(100%); }
  to   { transform: translateY(0); }
}

@keyframes modal-scale-in {
  from { opacity: 0; transform: scale(0.95); }
  to   { opacity: 1; transform: scale(1); }
}

/* ── Bottom Sheet: Handle + Closing Animation (Mobile < 768px) ── */
@media (max-width: 767px) {
  .modal-panel {
    /* Extra top padding for the drag handle */
    padding-top: calc(var(--space-4) + 20px);
    position: relative;
  }

  .modal-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    /* Visuelle Linie bleibt klein, Hit-Area ist 44px hoch */
    width: 36px;
    height: 44px;
    background-color: transparent;
    background-image: linear-gradient(
      to bottom,
      transparent calc(50% - 2px),
      var(--color-border) calc(50% - 2px),
      var(--color-border) calc(50% + 2px),
      transparent calc(50% + 2px)
    );
    border-radius: var(--radius-full);
  }

  .modal-panel--closing {
    animation: sheet-out 0.2s ease forwards;
  }
}

@keyframes sheet-out {
  from { transform: translateY(0); }
  to   { transform: translateY(16px); opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .modal-panel {
    animation: none;
  }
  .modal-panel--closing {
    animation: none;
  }
}

/* --------------------------------------------------------
 * Buttons
 * -------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  min-height: var(--target-lg);
  transition:
    background-color var(--transition-fast),
    box-shadow var(--transition-fast),
    transform var(--transition-fast);
  cursor: pointer;
  white-space: nowrap;
}

@media (min-width: 1024px) {
  .btn {
    min-height: var(--target-md);
  }
}

.btn:active {
  transform: scale(0.98);
}

.btn:focus-visible {
  outline: 2px solid var(--active-module-accent, var(--color-accent));
  outline-offset: 2px;
}

.btn--primary {
  background-color: var(--color-btn-primary);
  color: var(--color-text-on-accent);
  box-shadow: var(--shadow-sm);
}

.btn--primary:hover {
  background-color: var(--color-btn-primary-hover);
  box-shadow: var(--shadow-md);
}

.btn--secondary {
  background-color: transparent;
  color: var(--color-accent);
  border: 1.5px solid var(--color-border);
}

.btn--secondary:hover {
  background-color: var(--color-accent-light);
  border-color: var(--color-accent);
}

.btn--danger {
  background-color: var(--color-danger);
  color: var(--color-text-on-accent);
}

.btn--danger:hover {
  background-color: var(--color-danger-hover);
}

.btn--ghost {
  background-color: transparent;
  color: var(--color-text-secondary);
}

.btn--ghost:hover {
  background-color: var(--color-surface-2);
  color: var(--color-text-primary);
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

.btn--icon {
  padding: var(--space-2);
  min-height: var(--target-lg);
  min-width: var(--target-lg);
  border-radius: var(--radius-sm);
}

@media (min-width: 1024px) {
  .btn--icon {
    min-height: var(--target-md);
    min-width: var(--target-md);
  }
}


/* FAB und page-fab ausblenden wenn virtuelle Tastatur offen (nur Mobile) */
@media (max-width: 1023px) {
  .keyboard-visible .fab,
  .keyboard-visible .page-fab {
    visibility: hidden;
    pointer-events: none;
  }
}

/* --------------------------------------------------------
 * Form-Elemente
 * -------------------------------------------------------- */
.input,
.form-input {
  width: 100%;
  min-width: 0;
  box-sizing: border-box;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-border);
  background-color: var(--color-surface);
  color: var(--color-text-primary);
  font-size: var(--text-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  min-height: var(--target-lg);
}

@media (min-width: 1024px) {
  .input,
  .form-input {
    min-height: var(--target-md);
    font-size: var(--text-base);
  }
}

.input:focus,
.form-input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-light);
}

.input::placeholder,
.form-input::placeholder {
  color: var(--color-text-disabled);
}

.label, .form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-1);
}

.required-marker {
  color: var(--color-danger);
  margin-left: var(--space-0h);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-bold);
  line-height: 1;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin-bottom: var(--space-4);
}

/* ── Inline-Validierung ── */
.form-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.form-field--error .input,
.form-field--error .form-input {
  border-color: var(--color-danger);
}

.form-field--valid .input,
.form-field--valid .form-input {
  border-color: var(--color-success);
}

.form-field__error {
  display: none;
  font-size: var(--text-sm);
  color: var(--color-danger);
  gap: var(--space-1);
  align-items: center;
}

.form-field--error .form-field__error {
  display: flex;
}

/* Pulse-Animation bei wiederholtem Fehler */
@keyframes field-error-pulse {
  0%, 100% { box-shadow: none; }
  40%       { box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-danger) 35%, transparent); }
}

.form-field--error-repeat .input,
.form-field--error-repeat .form-input {
  animation: field-error-pulse 500ms var(--ease-out);
}

@media (prefers-reduced-motion: reduce) {
  .form-field--error-repeat .input,
  .form-field--error-repeat .form-input { animation: none; }
}

/* --------------------------------------------------------
 * Toggle-Switch
 * Custom iOS-style toggle, ersetzt native Checkboxen.
 * Usage: <label class="toggle"><input type="checkbox"><span class="toggle__track"></span></label>
 * -------------------------------------------------------- */
.toggle {
  display: inline-flex;
  align-items: center;
  cursor: pointer;
  gap: var(--space-3);
}

.toggle input {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}

.toggle__track {
  position: relative;
  width: 44px;
  height: 26px;
  background-color: var(--neutral-300);
  border-radius: var(--radius-full);
  transition: background-color var(--transition-fast);
  flex-shrink: 0;
}

.toggle__track::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 20px;
  height: 20px;
  background: var(--color-surface);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast) var(--ease-out);
}

.toggle input:checked + .toggle__track {
  background-color: var(--active-module-accent, var(--color-accent));
}

.toggle input:checked + .toggle__track::after {
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.toggle input:checked + .toggle__track::after {
  transform: translateX(18px);
}

.toggle input:focus-visible + .toggle__track {
  outline: 2px solid var(--active-module-accent, var(--color-accent));
  outline-offset: 2px;
}

.toggle input:disabled + .toggle__track {
  opacity: 0.4;
  cursor: not-allowed;
}

@media (prefers-reduced-motion: reduce) {
  .toggle__track,
  .toggle__track::after {
    transition: none;
  }

  .fab,
  .page-fab { animation: none; }

  .list-stagger > * { animation: none; }

  .swipe-row--hint > :first-child { animation: none; }

  .btn--loading::after { animation: none; }
}

/* --------------------------------------------------------
 * Skeleton-Loading
 * -------------------------------------------------------- */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-border-subtle) 25%,
    var(--color-surface-2) 50%,
    var(--color-border-subtle) 75%
  );
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

@keyframes skeleton-shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* --------------------------------------------------------
 * Leer-Zustände (Empty States)
 * -------------------------------------------------------- */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-12) var(--space-6);
  text-align: center;
  animation: empty-state-in 0.4s var(--ease-out) both;
}

@keyframes empty-state-in {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  .empty-state { animation: none; }
  .empty-state__cta { animation: none; }
}

.empty-state__icon {
  width: 56px;
  height: 56px;
  color: color-mix(in srgb, var(--module-accent, var(--color-accent)) 40%, var(--color-text-disabled));
}

.empty-state__title {
  font-size: var(--text-md);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

.empty-state__description {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  max-width: 280px;
  line-height: var(--line-height-base);
}

.empty-state__hint {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  max-width: 280px;
  line-height: var(--line-height-relaxed);
  padding: var(--space-2) var(--space-3);
  background-color: var(--color-surface-2);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-subtle);
  text-align: center;
}

.empty-state__cta {
  margin-top: var(--space-2);
  animation: list-item-in 300ms var(--ease-out) 300ms both;
}

.empty-state--compact {
  padding: var(--space-4) var(--space-3);
  gap: var(--space-2);
}
.empty-state--compact .empty-state__description {
  font-size: var(--text-sm);
}

/* --------------------------------------------------------
 * Responsive Grid (Utility)
 * -------------------------------------------------------- */
.grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .grid--2 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1440px) {
  .grid--4 { grid-template-columns: repeat(4, 1fr); }
}

/* --------------------------------------------------------
 * Layout-Primitives
 *
 * Wiederverwendbare Content-Area-Patterns für Desktop.
 * Mobile: immer single-column (Stacking).
 *
 * .layout-master-detail  - Liste links, Detail rechts (Aufgaben, Einkauf)
 * .layout-content-aside  - Hauptinhalt + schmale Seitenleiste (Kalender)
 * .layout-center         - Zentrierter schmaler Content (Settings, Login)
 * .layout-wide           - Volle Breite mit max-width (Dashboard)
 * -------------------------------------------------------- */

/* ── Master-Detail ──
 * Mobile: gestapelt (Detail wird programmatisch ein-/ausgeblendet).
 * Desktop: 2 Spalten - Liste ~40%, Detail ~60%.
 */
.layout-master-detail {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  max-width: var(--content-max-width);
  margin: 0 auto;
}

.layout-master-detail__master {
  flex: 1;
  min-width: 0;
}

.layout-master-detail__detail {
  flex: 1;
  min-width: 0;
}

@media (min-width: 1024px) {
  .layout-master-detail {
    flex-direction: row;
    gap: var(--space-6);
  }

  .layout-master-detail__master {
    flex: 0 0 380px;
    max-width: 420px;
    overflow-y: auto;
    max-height: calc(100dvh - var(--space-16));
    position: sticky;
    top: var(--space-8);
  }

  .layout-master-detail__detail {
    flex: 1;
  }
}

@media (min-width: 1440px) {
  .layout-master-detail__master {
    flex: 0 0 420px;
    max-width: 460px;
  }
}

/* ── Content + Aside ──
 * Mobile: gestapelt.
 * Desktop: Hauptinhalt nimmt Platz ein, Aside ist 280–320px.
 */
.layout-content-aside {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  max-width: var(--content-max-width);
  margin: 0 auto;
}

.layout-content-aside__main {
  flex: 1;
  min-width: 0;
}

.layout-content-aside__aside {
  min-width: 0;
}

@media (min-width: 1024px) {
  .layout-content-aside {
    flex-direction: row;
    gap: var(--space-6);
  }

  .layout-content-aside__main {
    flex: 1;
  }

  .layout-content-aside__aside {
    flex: 0 0 280px;
    overflow-y: auto;
    max-height: calc(100dvh - var(--space-16));
    position: sticky;
    top: var(--space-8);
  }
}

@media (min-width: 1440px) {
  .layout-content-aside__aside {
    flex: 0 0 320px;
  }
}

/* ── Center ──
 * Schmaler, zentrierter Content-Bereich (max. 720px).
 * Ideal für Settings, Formulare, Einzelansichten.
 */
.layout-center {
  max-width: 720px;
  margin: 0 auto;
}

/* ── Wide ──
 * Volle verfügbare Breite mit max-width.
 * Für Dashboard und andere Multi-Column-Ansichten.
 */
.layout-wide {
  max-width: var(--content-max-width);
  margin: 0 auto;
}

/* ── Prose ──
 * Text-Content mit optimaler Lesebreite.
 */
.prose {
  max-width: 720px;
}

/* ── Sticky-Header (Modul-Toolbars) ──
 * Klebt am oberen Rand beim Scrollen.
 */
.sticky-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background-color: color-mix(in srgb, var(--color-bg) 90%, transparent);
  backdrop-filter: var(--blur-sm);
  -webkit-backdrop-filter: var(--blur-sm);
  padding-bottom: var(--space-3);
  margin-bottom: var(--space-4);
}

/* ── prefers-reduced-transparency Fallback ──
 * Deaktiviert Blur und transparente Hintergründe für bessere Zugänglichkeit.
 */
@media (prefers-reduced-transparency: reduce) {
  .tasks-toolbar,
  .notes-toolbar,
  .cal-toolbar,
  .contacts-toolbar,
  .list-header {
    background-color: var(--color-surface);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
}

/* --------------------------------------------------------
 * Toast-Benachrichtigungen
 * -------------------------------------------------------- */
.toast-container {
  position: fixed;
  bottom: calc(var(--nav-bottom-height) + var(--safe-area-inset-bottom) + var(--space-4));
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  z-index: var(--z-toast);
  pointer-events: none;
  width: min(calc(100% - var(--space-8)), 380px);
}

@media (min-width: 768px) and (max-width: 1023px) {
  .toast-container {
    bottom: var(--space-8);
  }
}

@media (min-width: 1024px) {
  .toast-container {
    bottom: var(--space-6);
    left: calc(var(--sidebar-width) + (100% - var(--sidebar-width)) / 2);
  }
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background-color: var(--neutral-800);
  color: var(--neutral-50);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  box-shadow: var(--shadow-lg);
  pointer-events: auto;
  animation: toast-in 0.25s var(--ease-out) forwards;
}

.toast__icon {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
}

.toast__undo {
  margin-left: auto;
  flex-shrink: 0;
  padding: var(--space-1) var(--space-2);
  background: transparent;
  border: 1px solid currentColor;
  border-radius: var(--radius-sm);
  color: inherit;
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  white-space: nowrap;
  opacity: 0.85;
}

.toast__undo {
  -webkit-tap-highlight-color: transparent;
  transition: opacity var(--transition-fast), transform 0.08s ease;
}

.toast__undo:hover {
  opacity: 1;
}

.toast__undo:active {
  transform: scale(0.94);
  opacity: 1;
}

.toast--success { background-color: var(--color-success); color: var(--toast-success-text); }
.toast--danger  { background-color: var(--color-danger);  color: var(--toast-danger-text); }
.toast--warning { background-color: var(--color-warning); color: var(--toast-warning-text); }

@keyframes toast-in {
  from { opacity: 0; transform: translateY(6px) scale(0.98); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.toast--out {
  animation: toast-out 0.2s ease forwards;
}

@keyframes toast-out {
  from { opacity: 1; transform: scale(1); }
  to   { opacity: 0; transform: scale(0.95) translateY(4px); }
}

/* --------------------------------------------------------
 * RRULE-Felder (Wiederholungs-Formular, shared Tasks + Kalender)
 * -------------------------------------------------------- */

.rrule-fields {
  margin-top: var(--space-4);
  border-top: 1px solid var(--color-border-subtle);
  padding-top: var(--space-4);
}

.rrule-details {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: var(--space-3);
  padding: var(--space-3);
  background: var(--color-surface-2);
  border-radius: var(--radius-sm);
}

.rrule-row {
  display: flex;
  align-items: flex-end;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.rrule-interval-wrap {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.rrule-interval-unit {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  white-space: nowrap;
}

.rrule-until-field {
  flex: 1;
  min-width: 220px;
}

.rrule-day-grid {
  display: flex;
  gap: var(--space-1);
  flex-wrap: wrap;
  margin-top: var(--space-1);
}

.rrule-day {
  width: var(--target-md);
  height: var(--target-md);
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-border);
  background: transparent;
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  position: relative;
}

.rrule-day::before {
  content: '';
  position: absolute;
  inset: -4px;
}

.rrule-day:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.rrule-day--active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-text-on-accent);
}

.rrule-day--active:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
}

/* ── Submit-Feedback Animationen ── */

/* Checkbox-Pop: kanonische Definition - shopping.css + tasks.css verwenden diese */
@keyframes check-pop {
  0%   { transform: scale(1); }
  30%  { transform: scale(0.8); }
  60%  { transform: scale(1.3); }
  80%  { transform: scale(0.95); }
  100% { transform: scale(1); }
}

@keyframes btn-shake {
  0%, 100% { transform: translateX(0); }
  20%       { transform: translateX(-4px); }
  40%       { transform: translateX(4px); }
  60%       { transform: translateX(-4px); }
  80%       { transform: translateX(4px); }
}

.btn--shaking {
  animation: btn-shake 0.3s ease;
}

/* prefers-reduced-motion: kein Schütteln, nur Farb-Feedback */
.btn--error-static {
  background-color: var(--color-danger) !important;
  color: var(--color-text-on-accent) !important;
  pointer-events: none;
}

.btn--success {
  background-color: var(--color-success) !important;
  color: var(--color-text-on-accent) !important;
  pointer-events: none;
}

/* Button loading state: hides text, shows spinner */
@keyframes btn-spin {
  to { transform: rotate(360deg); }
}

.btn--loading {
  position: relative;
  color: transparent !important;
  pointer-events: none;
}

.btn--loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 14px;
  height: 14px;
  margin-top: -7px;
  margin-left: -7px;
  border: 2px solid var(--color-glass-hover);
  border-top-color: var(--color-text-on-accent);
  border-radius: var(--radius-full);
  animation: btn-spin 0.55s linear infinite;
}

/* For non-primary buttons (secondary, ghost) */
.btn--secondary.btn--loading::after,
.btn--ghost.btn--loading::after {
  border-color: var(--color-border);
  border-top-color: var(--color-accent);
}

/* --------------------------------------------------------
 * Swipe-Wrapper - Gemeinsame Basis (Tasks + Shopping)
 * Modul-spezifische Styles (.swipe-reveal--edit, .swipe-reveal--delete,
 * .swipe-row .task-card, .swipe-row .shopping-item) liegen in den Modul-CSS.
 * -------------------------------------------------------- */
.swipe-row {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-2);
  /* Verhindert ungewolltes Flackern auf iOS */
  -webkit-backface-visibility: hidden;
}

/* Reveal-Panels hinter der Karte */
.swipe-reveal {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  opacity: 0;
  pointer-events: none;
  z-index: 0;
  transition: opacity 0.05s linear;
}

/* --------------------------------------------------------
 * List Stagger
 * Füge .list-stagger zum Container hinzu.
 * Items erscheinen sequenziell beim ersten Rendern.
 * -------------------------------------------------------- */
@keyframes list-item-in {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.list-stagger > * {
  animation: list-item-in 0.2s var(--ease-out) both;
}

.list-stagger > *:nth-child(1)   { animation-delay: 0ms; }
.list-stagger > *:nth-child(2)   { animation-delay: 35ms; }
.list-stagger > *:nth-child(3)   { animation-delay: 65ms; }
.list-stagger > *:nth-child(4)   { animation-delay: 90ms; }
.list-stagger > *:nth-child(5)   { animation-delay: 112ms; }
.list-stagger > *:nth-child(6)   { animation-delay: 130ms; }
.list-stagger > *:nth-child(7)   { animation-delay: 145ms; }
.list-stagger > *:nth-child(8)   { animation-delay: 157ms; }
.list-stagger > *:nth-child(9)   { animation-delay: 166ms; }
.list-stagger > *:nth-child(n+10) { animation-delay: 173ms; }

/* --------------------------------------------------------
 * Swipe Affordance Hint
 * Einmalig per JS: .swipe-row--hint auf das erste Element.
 * Gibt nach Seitenladezeit einen kurzen Nudge-Hinweis.
 * -------------------------------------------------------- */
@keyframes swipe-nudge {
  0%   { transform: translateX(0); }
  20%  { transform: translateX(-18px); }
  45%  { transform: translateX(0); }
  60%  { transform: translateX(-9px); }
  80%  { transform: translateX(0); }
  100% { transform: translateX(0); }
}

.swipe-row--hint > :first-child {
  animation: swipe-nudge 0.8s var(--ease-out) 1.2s both;
}

/* Swipe-Affordanz: permanente Chevron-Hints an den Kartenrändern */
.swipe-row::after {
  content: '';
  position: absolute;
  right: var(--space-2);
  top: 50%;
  transform: translateY(-50%);
  width: 12px;
  height: 20px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 20' fill='none' stroke='%23888' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='3,4 9,10 3,16'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-size: contain;
  opacity: 0.3;
  pointer-events: none;
  z-index: 1;
  transition: opacity var(--transition-fast);
}

.swipe-row:hover::after,
.swipe-row:focus-within::after {
  opacity: 0.55;
}

@media (prefers-reduced-motion: reduce) {
  .swipe-row::after { display: none; }
}

/* Gemeinsam: Erledigt / Abhaken (Swipe nach links) */
.swipe-reveal--done {
  right: 0;
  background-color: var(--color-success);
  color: var(--color-text-on-accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

/* --------------------------------------------------------
 * Reduced Transparency — layout.css Fallbacks
 * glass.css deckt Glass-Komponenten ab; diese drei Elemente
 * nutzen backdrop-filter außerhalb von @supports und brauchen
 * eigene Fallbacks.
 * -------------------------------------------------------- */
@media (prefers-reduced-transparency: reduce) {
  .nav-bottom {
    background-color: var(--color-surface);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .more-backdrop {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .sticky-header {
    background-color: var(--color-bg);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
}

/* --------------------------------------------------------
 * Keyboard Shortcut Modal
 * -------------------------------------------------------- */
.shortcuts-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.shortcuts-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--color-border-subtle);
}

.shortcuts-row:last-child {
  border-bottom: none;
}

.shortcut-kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  padding: var(--space-0h) var(--space-2);
  background: var(--color-surface-3);
  border: 1px solid var(--color-border);
  border-bottom: 2px solid var(--color-border);
  border-radius: var(--radius-xs);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-primary);
  white-space: nowrap;
  flex-shrink: 0;
}

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

/* --------------------------------------------------------
 * Offline-Banner
 * -------------------------------------------------------- */
.offline-banner {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: calc(var(--z-toast) + 1);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background-color: var(--color-warning-light);
  color: var(--color-warning);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  border-bottom: 1px solid color-mix(in srgb, var(--color-warning) 20%, transparent);
  animation: offline-banner-in 0.2s var(--ease-out);
}

.offline-banner[hidden] {
  display: none;
}

@keyframes offline-banner-in {
  from { opacity: 0; transform: translateY(-100%); }
  to   { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  .offline-banner { animation: none; }
}

/* --------------------------------------------------------
 * Print-Styles
 * -------------------------------------------------------- */
@media print {
  .nav-sidebar,
  .nav-bottom,
  .fab,
  .toast-container,
  .modal-overlay,
  .modal-backdrop {
    display: none !important;
  }

  .app-content {
    margin-left: 0 !important;
    padding-bottom: 0 !important;
  }

  .app-shell {
    display: block;
  }

  body {
    background: #ffffff;
    color: #000000;
  }

  .card {
    box-shadow: none;
    border: 1px solid #cccccc;
    break-inside: avoid;
  }

  a[href]::after {
    content: " (" attr(href) ")";
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
  }

  .nav-item,
  a[data-route]::after {
    content: none;
  }
}

/* --------------------------------------------------------
 * Skip-Link (sichtbar bei Keyboard-Focus)
 * -------------------------------------------------------- */
.sr-only:focus-visible {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 9999;
  width: auto;
  height: auto;
  padding: var(--space-2) var(--space-4);
  margin: 0;
  clip: auto;
  white-space: normal;
  overflow: visible;
  background: var(--color-accent);
  color: var(--color-text-on-accent);
  font-size: var(--text-sm);
  border-radius: 0 0 var(--radius-sm) 0;
}

/* --------------------------------------------------------
 * Icon-Größen-Utilities
 * Größen für Lucide-Icons (<i data-lucide>). Klassen werden
 * vom Lucide-Renderer auf das erzeugte <svg> übertragen.
 * -------------------------------------------------------- */
.icon-xs   { width: 10px; height: 10px; flex-shrink: 0; }
.icon-11   { width: 11px; height: 11px; flex-shrink: 0; }
.icon-sm   { width: 12px; height: 12px; flex-shrink: 0; }
.icon-md   { width: 14px; height: 14px; flex-shrink: 0; }
.icon-base { width: 16px; height: 16px; flex-shrink: 0; }
.icon-lg   { width: 18px; height: 18px; flex-shrink: 0; }
.icon-xl   { width: 22px; height: 22px; flex-shrink: 0; }
.icon-2xl  { width: 24px; height: 24px; flex-shrink: 0; }

/* Icons innerhalb von Buttons sollen keine Pointer-Events fangen */
button i[data-lucide],
button svg { pointer-events: none; }

/* Tabular numbers: gleichbreite Ziffern für Zahlen/Beträge */
.tabular-nums { font-variant-numeric: tabular-nums; }

/* Kompakter Icon-Button: 44px Klickfläche, optisch kompakt durch geringes Padding */
.btn--icon-sm {
  padding: var(--space-1);
  min-height: var(--target-base);
  min-width: var(--target-base);
  border-radius: var(--radius-sm);
}

/* Textarea: vertikale Größenänderung ist nutzbar */
textarea.input { resize: vertical; }

/* --------------------------------------------------------
 * High Contrast (prefers-contrast: more)
 * Tokens in tokens.css stellen bereits opake Glass-Werte bereit.
 * Hier kommen komponentenspezifische Korrekturen hinzu.
 * -------------------------------------------------------- */
@media (prefers-contrast: more) {
  /* Fokus: dicker und weiter versetzt */
  :focus-visible {
    outline-width: 3px;
    outline-offset: 4px;
  }

  /* Ghost- und Secondary-Buttons: explizite Umrandung */
  .btn--ghost,
  .btn--secondary {
    border: 1.5px solid currentColor;
  }

  .btn--ghost:hover {
    background-color: var(--color-surface-3);
  }

  /* Karten: Schatten entfernen, Border verstärken */
  .card {
    box-shadow: none;
    border: 1px solid var(--color-border);
  }

  .card--flat {
    border-color: var(--color-text-secondary);
  }

  /* Formulareingaben: kräftigere Border */
  .input,
  .form-input {
    border-color: var(--color-text-primary);
    border-width: 2px;
  }

  /* Aktiver Nav-Eintrag: zusätzliche Unterstreichung als farb-unabhängiger Indikator */
  .nav-item[aria-current="page"] {
    text-decoration: underline;
    text-underline-offset: 3px;
  }
}

/* --------------------------------------------------------
 * Signature Moment: Eingabefeld-Glow nach erfolgreichem Item-Add
 * -------------------------------------------------------- */
@keyframes input-add-flash {
  0%   { box-shadow: none; }
  25%  { box-shadow: 0 0 0 3px color-mix(in srgb, var(--module-accent, var(--color-accent)) 45%, transparent); }
  100% { box-shadow: none; }
}

.quick-add__input--flash {
  animation: input-add-flash 550ms var(--ease-out) forwards;
}

@media (prefers-reduced-motion: reduce) {
  .quick-add__input--flash { animation: none; }
}

/* --------------------------------------------------------
 * Windows High Contrast / Forced Colors
 * -------------------------------------------------------- */
@media (forced-colors: active) {
  .btn,
  .page-fab,
  .fab          { border: 1px solid ButtonText; }
  .card         { border: 1px solid CanvasText; }
  .modal-panel  { border: 2px solid CanvasText; }
  .nav-item[aria-current="page"] { border-bottom: 2px solid Highlight; }
}