/* ========================================
   Design Tokens
   ======================================== */
:root {
    /* Colors */
    --color-primary: #2E7D32;
    --color-primary-light: #4CAF50;
    --color-primary-dark: #1B5E20;
    --color-primary-surface: #E8F5E9;
    --color-primary-surface-hover: #C8E6C9;
    
    --color-secondary: #A5D6A7;
    --color-tertiary: #F1F8E9;
    
    --color-surface: #FFFFFF;
    --color-surface-variant: #F5F5F5;
    --color-background: #FAFAFA;
    
    --color-on-primary: #FFFFFF;
    --color-on-surface: #1A1A1A;
    --color-on-surface-variant: #757575;
    
    --color-outline: #E0E0E0;
    --color-outline-variant: #EEEEEE;
    
    --color-error: #D32F2F;
    --color-success: #2E7D32;
    
    /* Typography */
    --font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    
    --text-headline: 600 24px/32px var(--font-family);
    --text-title: 600 20px/28px var(--font-family);
    --text-body: 400 16px/24px var(--font-family);
    --text-body-medium: 500 16px/24px var(--font-family);
    --text-label: 500 14px/20px var(--font-family);
    --text-caption: 400 12px/16px var(--font-family);
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 48px;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    
    /* Layout */
    --nav-height: 64px;
    --header-height: 64px;
    --safe-area-bottom: env(safe-area-inset-bottom, 0px);
}

/* ========================================
   Reset & Base
   ======================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    -webkit-tap-highlight-color: transparent;
    -webkit-text-size-adjust: 100%;
}

body {
    font: var(--text-body);
    color: var(--color-on-surface);
    background: var(--color-background);
    min-height: 100vh;
    min-height: 100dvh;
    overscroll-behavior: none;
}

button {
    font: inherit;
    color: inherit;
    background: none;
    border: none;
    cursor: pointer;
    -webkit-user-select: none;
    user-select: none;
}

input {
    font: inherit;
    color: inherit;
    background: none;
    border: none;
    outline: none;
}

ul {
    list-style: none;
}

/* ========================================
   App Container
   ======================================== */
.app {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    min-height: 100dvh;
    max-width: 480px;
    margin: 0 auto;
    background: var(--color-surface);
    position: relative;
}

/* ========================================
   Screens
   ======================================== */
.screen {
    display: none;
    flex-direction: column;
    flex: 1;
    padding-bottom: calc(var(--nav-height) + var(--safe-area-bottom));
}

.screen.active {
    display: flex;
}

/* ========================================
   Header
   ======================================== */
.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    padding: 0 var(--spacing-md);
    background: var(--color-surface);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header h1 {
    font: var(--text-headline);
    color: var(--color-primary);
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.header-left h1 {
    font: var(--text-title);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.icon-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    color: var(--color-on-surface-variant);
    transition: background var(--transition-fast);
}

.icon-btn:active {
    background: var(--color-outline-variant);
}

.lang-btn {
    font: var(--text-label);
    font-weight: 700;
    letter-spacing: 0.02em;
}

/* ========================================
   Listen-Picker & Dropdown
   ======================================== */
.liste-picker-wrap {
    position: relative;
    flex: 1;
    min-width: 0;
}

.liste-picker {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    max-width: 100%;
    padding: var(--spacing-xs) var(--spacing-sm);
    margin-left: calc(var(--spacing-sm) * -1);
    border-radius: var(--radius-md);
    color: var(--color-primary);
    transition: background var(--transition-fast);
}

.liste-picker:active {
    background: var(--color-outline-variant);
}

.liste-picker h1 {
    font: var(--text-headline);
    color: inherit;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.liste-picker svg {
    flex-shrink: 0;
    opacity: 0.7;
}

.listen-dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 4px);
    left: calc(var(--spacing-sm) * -1);
    width: min(320px, 85vw);
    background: var(--color-surface);
    border: 1px solid var(--color-outline);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 200;
    overflow: hidden;
}

.listen-dropdown.active {
    display: block;
}

.listen-dropdown-liste {
    max-height: 40vh;
    overflow-y: auto;
}

.listen-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-xs) var(--spacing-xs) var(--spacing-md);
    border-bottom: 1px solid var(--color-outline-variant);
}

.listen-item:last-child {
    border-bottom: none;
}

.listen-item.aktiv {
    background: var(--color-primary-surface);
}

.listen-item-select {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-sm);
    flex: 1;
    min-width: 0;
    padding: var(--spacing-sm) 0;
    text-align: left;
}

.listen-item-name {
    font: var(--text-body-medium);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.listen-item.aktiv .listen-item-name {
    color: var(--color-primary);
}

.listen-item-count {
    flex-shrink: 0;
    font: var(--text-caption);
    color: var(--color-on-surface-variant);
    background: var(--color-surface-variant);
    padding: 2px 8px;
    border-radius: var(--radius-full);
}

.listen-item-input {
    flex: 1;
    min-width: 0;
    height: 36px;
    padding: 0 var(--spacing-sm);
    background: var(--color-surface-variant);
    border-radius: var(--radius-sm);
    font: var(--text-body-medium);
}

.listen-item-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    flex-shrink: 0;
    color: var(--color-on-surface-variant);
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
}

.listen-item-icon:active {
    background: var(--color-outline-variant);
}

.listen-item-icon[disabled] {
    opacity: 0.3;
    pointer-events: none;
}

.listen-dropdown-neu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    background: var(--color-surface-variant);
}

.listen-dropdown-neu input {
    flex: 1;
    height: 40px;
    padding: 0 var(--spacing-sm);
    background: var(--color-surface);
    border-radius: var(--radius-sm);
    font: var(--text-body);
}

/* ========================================
   Content
   ======================================== */
.content {
    flex: 1;
    padding: var(--spacing-md);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.einkauf-content {
    padding-bottom: 100px;
}

/* ========================================
   Input Section
   ======================================== */
.input-section {
    margin-bottom: var(--spacing-lg);
}

.input-wrapper {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--color-surface-variant);
    border-radius: var(--radius-md);
    padding: var(--spacing-xs);
    padding-left: var(--spacing-md);
    border: 2px solid transparent;
    transition: border-color var(--transition-fast), background var(--transition-fast);
}

.input-wrapper:focus-within {
    background: var(--color-surface);
    border-color: var(--color-primary);
}

.input-wrapper input {
    flex: 1;
    height: 48px;
    font: var(--text-body);
}

.input-wrapper input::placeholder {
    color: var(--color-on-surface-variant);
}

.btn-add {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--color-primary);
    color: var(--color-on-primary);
    border-radius: var(--radius-md);
    flex-shrink: 0;
    transition: background var(--transition-fast), transform var(--transition-fast);
}

.btn-add:active {
    background: var(--color-primary-dark);
    transform: scale(0.95);
}

/* ========================================
   Sections
   ======================================== */
.section {
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font: var(--text-label);
    color: var(--color-on-surface-variant);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-md);
}

/* ========================================
   Chips
   ======================================== */
.chips-container {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.chip {
    display: inline-flex;
    align-items: center;
    height: 36px;
    padding: 0 var(--spacing-md);
    background: var(--color-surface);
    border: 1px solid var(--color-outline);
    border-radius: var(--radius-full);
    font: var(--text-label);
    color: var(--color-on-surface);
    transition: all var(--transition-fast);
}

.chip:active {
    background: var(--color-primary-surface);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.chip.selected {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-on-primary);
}

/* ========================================
   Empty State
   ======================================== */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--spacing-xxl) var(--spacing-lg);
}

.empty-illustration {
    margin-bottom: var(--spacing-lg);
    opacity: 0.8;
}

.empty-state h3 {
    font: var(--text-title);
    margin-bottom: var(--spacing-sm);
}

.empty-state p {
    font: var(--text-body);
    color: var(--color-on-surface-variant);
    margin-bottom: var(--spacing-lg);
    max-width: 280px;
}

/* ========================================
   Artikel Liste
   ======================================== */
.artikel-liste {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.artikel-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--color-surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-outline-variant);
}

.artikel-item-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex: 1;
    min-width: 0;
}

.artikel-icon {
    width: 40px;
    height: 40px;
    background: var(--color-primary-surface);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.artikel-name {
    font: var(--text-body-medium);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ========================================
   Mengen-Stepper
   ======================================== */
.menge-stepper {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    flex-shrink: 0;
}

.menge-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: var(--radius-sm);
    background: var(--color-surface-variant);
    color: var(--color-on-surface);
    font-size: 16px;
    font-weight: 600;
    line-height: 1;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.menge-btn:active {
    background: var(--color-primary-surface);
    color: var(--color-primary);
}

.menge-btn:disabled {
    opacity: 0.35;
}

.menge-value {
    min-width: 18px;
    text-align: center;
    font: var(--text-body-medium);
    font-variant-numeric: tabular-nums;
}

.btn-delete {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    color: var(--color-error);
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
}

.btn-delete:active {
    background: rgba(211, 47, 47, 0.1);
}

/* ========================================
   Einkauf Kategorien
   ======================================== */
.kategorie-section {
    margin-bottom: var(--spacing-lg);
}

.kategorie-title {
    font: var(--text-label);
    color: var(--color-on-surface-variant);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-md);
}

.einkauf-liste {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.einkauf-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-outline-variant);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.einkauf-item:active {
    background: var(--color-surface-variant);
}

.einkauf-item.checked {
    background: var(--color-surface-variant);
    border-color: transparent;
}

.einkauf-item.checked .einkauf-item-name {
    text-decoration: line-through;
    color: var(--color-on-surface-variant);
}

.checkbox {
    width: 28px;
    height: 28px;
    border: 2px solid var(--color-outline);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all var(--transition-fast);
}

.einkauf-item.checked .checkbox {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.checkbox svg {
    opacity: 0;
    color: var(--color-on-primary);
    transition: opacity var(--transition-fast);
}

.einkauf-item.checked .checkbox svg {
    opacity: 1;
}

.einkauf-item-content {
    flex: 1;
}

.einkauf-item-name {
    font: var(--text-body-medium);
}

.einkauf-item-detail {
    font: var(--text-caption);
    color: var(--color-on-surface-variant);
    margin-top: 2px;
}

/* ========================================
   Progress
   ======================================== */
.progress-section {
    padding: var(--spacing-md);
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-outline-variant);
}

.progress-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
}

.progress-label {
    font: var(--text-label);
    color: var(--color-on-surface-variant);
}

.progress-count {
    font: var(--text-label);
    color: var(--color-primary);
}

.progress-bar {
    height: 8px;
    background: var(--color-outline-variant);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--color-primary);
    border-radius: var(--radius-full);
    width: 0%;
    transition: width var(--transition-normal);
}

/* ========================================
   Buttons
   ======================================== */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    height: 52px;
    padding: 0 var(--spacing-lg);
    background: var(--color-primary);
    color: var(--color-on-primary);
    font: var(--text-body-medium);
    border-radius: var(--radius-md);
    transition: background var(--transition-fast), transform var(--transition-fast);
}

.btn-primary:active {
    background: var(--color-primary-dark);
    transform: scale(0.98);
}

.btn-large {
    width: 100%;
    height: 56px;
    font-size: 17px;
    border-radius: var(--radius-lg);
}

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

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    height: 48px;
    padding: 0 var(--spacing-lg);
    background: var(--color-primary-surface);
    color: var(--color-primary);
    font: var(--text-body-medium);
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
}

.btn-secondary:active {
    background: var(--color-primary-surface-hover);
}

.btn-text {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 48px;
    padding: 0 var(--spacing-lg);
    color: var(--color-primary);
    font: var(--text-body-medium);
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
}

.btn-text:active {
    background: var(--color-primary-surface);
}

/* ========================================
   CTA Container
   ======================================== */
.cta-container {
    padding: var(--spacing-md);
    padding-bottom: calc(var(--spacing-md) + var(--nav-height) + var(--safe-area-bottom));
    background: linear-gradient(to top, var(--color-surface) 80%, transparent);
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 480px;
    z-index: 50;
}

/* ========================================
   FAB
   ======================================== */
.fab {
    position: fixed;
    bottom: calc(var(--nav-height) + var(--spacing-lg) + var(--safe-area-bottom));
    right: var(--spacing-md);
    width: 56px;
    height: 56px;
    background: var(--color-primary);
    color: var(--color-on-primary);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    z-index: 40;
}

.fab:active {
    transform: scale(0.95);
    box-shadow: var(--shadow-md);
}

/* ========================================
   Bottom Navigation
   ======================================== */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 480px;
    height: calc(var(--nav-height) + var(--safe-area-bottom));
    padding-bottom: var(--safe-area-bottom);
    background: var(--color-surface);
    border-top: 1px solid var(--color-outline-variant);
    display: flex;
    z-index: 100;
}

.nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    color: var(--color-on-surface-variant);
    transition: color var(--transition-fast);
}

.nav-item span {
    font: var(--text-caption);
}

.nav-item.active {
    color: var(--color-primary);
}

.nav-item.active svg {
    stroke-width: 2.5;
}

/* ========================================
   Dialog
   ======================================== */
.dialog-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.dialog-overlay.active {
    opacity: 1;
    visibility: visible;
}

.dialog {
    width: 100%;
    max-width: 480px;
    background: var(--color-surface);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    padding: var(--spacing-lg);
    padding-bottom: calc(var(--spacing-lg) + var(--safe-area-bottom));
    text-align: center;
    transform: translateY(100%);
    transition: transform var(--transition-normal);
}

.dialog-overlay.active .dialog {
    transform: translateY(0);
}

.dialog-icon {
    width: 72px;
    height: 72px;
    background: var(--color-primary-surface);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
}

.dialog h2 {
    font: var(--text-title);
    margin-bottom: var(--spacing-sm);
}

.dialog p {
    font: var(--text-body);
    color: var(--color-on-surface-variant);
    margin-bottom: var(--spacing-lg);
}

.dialog-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

/* ========================================
   QR-Dialog
   ======================================== */
.qr-canvas-wrap {
    display: flex;
    justify-content: center;
    padding: var(--spacing-md);
    background: #FFFFFF;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.qr-canvas-wrap canvas {
    width: 100%;
    max-width: 260px;
    height: auto;
    display: block;
}

.qr-url {
    font: var(--text-caption);
    color: var(--color-on-surface-variant);
    word-break: break-all;
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

/* ========================================
   Utilities
   ======================================== */
@media (min-width: 481px) {
    .app {
        border-left: 1px solid var(--color-outline-variant);
        border-right: 1px solid var(--color-outline-variant);
    }
}

/* PWA Standalone Mode */
@media (display-mode: standalone) {
    .header {
        padding-top: env(safe-area-inset-top, 0);
        height: calc(var(--header-height) + env(safe-area-inset-top, 0));
    }
}

/* Hide FAB when CTA is visible */
#screen-planen .fab {
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

#screen-planen.has-items .fab {
    bottom: calc(var(--nav-height) + 80px + var(--safe-area-bottom));
}
/* ========================================
   Dark Mode
   ======================================== */
.dark-mode {
    --color-primary: #66BB6A;
    --color-primary-light: #81C784;
    --color-primary-dark: #388E3C;
    --color-primary-surface: #1B2E1C;
    --color-primary-surface-hover: #243D25;

    --color-secondary: #388E3C;
    --color-tertiary: #1A2B1A;

    --color-surface: #1E1E1E;
    --color-surface-variant: #2A2A2A;
    --color-background: #121212;

    --color-on-primary: #000000;
    --color-on-surface: #E8E8E8;
    --color-on-surface-variant: #AAAAAA;

    --color-outline: #3A3A3A;
    --color-outline-variant: #2E2E2E;

    --color-error: #EF5350;
    --color-success: #66BB6A;
}

/* ========================================
   Autocomplete
   ======================================== */
.input-section {
    position: relative;
}

.autocomplete-list {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    right: 0;
    background: var(--color-surface);
    border: 1px solid var(--color-outline);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 200;
    list-style: none;
    overflow: hidden;
    margin: 0;
    padding: var(--spacing-xs) 0;
}

.autocomplete-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.autocomplete-item:hover,
.autocomplete-item:active {
    background: var(--color-primary-surface);
}

.autocomplete-emoji {
    font-size: 20px;
    width: 28px;
    text-align: center;
    flex-shrink: 0;
}

.autocomplete-name {
    flex: 1;
    font: var(--text-body-medium);
    color: var(--color-on-surface);
}

.autocomplete-count {
    font: var(--text-caption);
    color: var(--color-on-surface-variant);
    background: var(--color-surface-variant);
    padding: 2px 6px;
    border-radius: var(--radius-full);
    flex-shrink: 0;
}

/* ========================================
   Chip Count Badge
   ======================================== */
.chip-count {
    font: var(--text-caption);
    color: var(--color-on-surface-variant);
    margin-left: 2px;
}

/* ========================================
   Voice Button – listening state
   ======================================== */
.fab.listening {
    background: var(--color-error);
    animation: pulse 1s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.08); }
}