/**
 * 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;
  min-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)
 * -------------------------------------------------------- */
@keyframes page-slide-in-right {
  from { opacity: 0; transform: translateX(20px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes page-slide-in-left {
  from { opacity: 0; transform: translateX(-20px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes page-out-left {
  from { opacity: 1; transform: translateX(0); }
  to   { opacity: 0; transform: translateX(-20px); }
}
@keyframes page-out-right {
  from { opacity: 1; transform: translateX(0); }
  to   { opacity: 0; transform: translateX(20px); }
}

.page-transition--in-right {
  animation: page-slide-in-right 0.2s var(--ease-out) forwards;
}
.page-transition--in-left {
  animation: page-slide-in-left 0.2s var(--ease-out) forwards;
}
.page-transition--out-left {
  animation: page-out-left 0.12s ease forwards;
  pointer-events: none;
}
.page-transition--out-right {
  animation: page-out-right 0.12s ease forwards;
  pointer-events: none;
}

@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;
  }
}

/* --------------------------------------------------------
 * Layout: Mobile (Standard, < 1024px)
 * -------------------------------------------------------- */
.app-content {
  flex: 1;
  padding-bottom: calc(var(--nav-height-mobile) + 12px + var(--safe-area-inset-bottom));
  overflow-y: auto;
}

/* 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 {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  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: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  padding-bottom: var(--safe-area-inset-bottom);
}

/* ── Dot-Indikator ── */
.nav-bottom__dots {
  display: flex;
  justify-content: center;
  gap: 6px;
  padding: 5px 0 2px;
}

.nav-bottom__dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: var(--color-text-tertiary);
  opacity: 0.25;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.nav-bottom__dot--active {
  opacity: 0.7;
  transform: scale(1.2);
}

/* ── Scroll-Container ── */
.nav-bottom__scroll {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;              /* Firefox */
  height: var(--nav-height-mobile);
}

.nav-bottom__scroll::-webkit-scrollbar {
  display: none;                       /* Chrome/Safari */
}

/* ── Einzelne Seiten ── */
.nav-bottom__page {
  display: flex;
  min-width: 100%;
  flex-shrink: 0;
  scroll-snap-align: start;
}

/* ── Nav-Item (Bottom-Bar): Basis-State ── */
.nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  padding: var(--space-1) var(--space-1);
  color: var(--color-text-tertiary);
  transition: color var(--transition-fast);
  -webkit-tap-highlight-color: transparent;
  min-height: var(--target-lg);
  min-width: var(--target-lg);
  text-decoration: none;
}

.nav-item:active {
  transform: scale(0.92);
}

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

.nav-item__icon {
  width: 22px;
  height: 22px;
  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.
 * -------------------------------------------------------- */
.page-fab {
  position: fixed;
  bottom: calc(var(--nav-height-mobile) + 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: #ffffff;
  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;
}

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

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

/* 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: 48px;
    height: 48px;
  }
}

/* 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;
    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;
  }

  /* App-Icon als kompaktes Logo */
  .nav-sidebar__logo::before {
    content: 'O';
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, var(--color-accent) 0%, #7C5CFC 100%);
    color: #ffffff;
    font-size: var(--text-sm);
    font-weight: var(--font-weight-bold);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
  }

  /* Logo-Text verstecken im collapsed-Modus */
  .nav-sidebar__logo > span {
    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: 8px 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(--color-accent);
    font-weight: var(--font-weight-semibold);
    background-color: var(--color-accent-light);
  }

  /* Akzentstreifen links */
  .nav-sidebar .nav-item[aria-current="page"]::before {
    content: '';
    position: absolute;
    left: 0;
    top: 6px;
    bottom: 6px;
    width: 3px;
    border-radius: 0 var(--radius-full) var(--radius-full) 0;
    background: 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;
  }
}

/* ================================================================
 * 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__logo::before {
    width: 28px;
    height: 28px;
    font-size: var(--text-xs);
  }

  .nav-sidebar__logo > span {
    display: inline-block;
    font-size: var(--text-lg);
    font-weight: var(--font-weight-bold);
    letter-spacing: -0.3px;
    color: var(--color-text-primary);
  }

  .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: 8px 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: -0.3px;
}

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

  .page__title {
    font-size: var(--text-2xl);
    letter-spacing: -0.5px;
  }
}

@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);
}

.card--interactive:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.card--interactive:active {
  transform: scale(0.99);
}

@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);
}

.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: flex-end;
  justify-content: center;
  animation: modal-overlay-in 0.2s ease forwards;
}

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

.modal-panel {
  background-color: var(--color-surface);
  width: 100%;
  max-height: 90dvh;
  overflow-y: auto;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  animation: modal-slide-up 0.25s var(--ease-out) forwards;
}

@media (min-width: 768px) {
  .modal-panel {
    max-width: 520px;
    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);
  position: sticky;
  top: 0;
  background-color: var(--color-surface);
  z-index: 1;
}

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

.modal-panel__close {
  width: 32px;
  height: 32px;
  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;
}

.modal-panel__close::before {
  content: '';
  position: absolute;
  inset: -8px;
}

.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);
}

.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); }
}

/* --------------------------------------------------------
 * 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-sm);
  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--primary {
  background-color: var(--color-btn-primary);
  color: #ffffff;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.btn--primary:hover {
  background-color: var(--color-btn-primary-hover);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}

.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: #ffffff;
}

.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 (Floating Action Button) */
.fab {
  position: fixed;
  bottom: calc(var(--nav-height-mobile) + var(--safe-area-inset-bottom) + var(--space-4));
  right: var(--space-4);
  width: 52px;
  height: 52px;
  border-radius: var(--radius-full);
  background-color: var(--module-accent, var(--color-btn-primary));
  color: #ffffff;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: calc(var(--z-nav) - 1);
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-fast);
}

.fab:hover {
  background-color: color-mix(in srgb, var(--module-accent, var(--color-btn-primary)) 85%, black);
  transform: scale(1.05);
}

.fab:active {
  transform: scale(0.95);
}

@media (min-width: 1024px) {
  .fab {
    bottom: var(--space-8);
    width: 48px;
    height: 48px;
  }
}

/* --------------------------------------------------------
 * Form-Elemente
 * -------------------------------------------------------- */
.input,
.form-input {
  width: 100%;
  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 {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-1);
}

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

/* --------------------------------------------------------
 * 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;
}

.empty-state__icon {
  width: 56px;
  height: 56px;
  color: 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--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: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding-bottom: var(--space-3);
  margin-bottom: var(--space-4);
}

/* --------------------------------------------------------
 * Toast-Benachrichtigungen
 * -------------------------------------------------------- */
.toast-container {
  position: fixed;
  bottom: calc(var(--nav-height-mobile) + 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: 1024px) {
  .toast-container {
    bottom: var(--space-6);
    left: calc(var(--sidebar-width) + (100% - var(--sidebar-width)) / 2);
  }
}

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

@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);
}

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

.rrule-day {
  width: 40px;
  height: 40px;
  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: #fff;
}

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

/* --------------------------------------------------------
 * 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: #fff;
    color: #000;
  }

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

  a[href]::after {
    content: " (" attr(href) ")";
    font-size: 0.85em;
    color: #666;
  }

  .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: #fff;
  font-size: var(--text-sm);
  border-radius: 0 0 var(--radius-sm) 0;
}