/* ==========================================
   Global Styles
   ========================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colors */
    --primary-color: #1a1a1a;
    --secondary-color: #ffffff;
    --accent-color: #0066cc;
    --accent-hover: #0052a3;
    --border-color: #e0e0e0;
    --text-primary: #1a1a1a;
    --text-secondary: #666666;
    --background: #ffffff;
    --background-light: #f5f5f5;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', sans-serif;
    --font-size-base: 1rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 2.5rem;
    
    /* Transitions */
    --transition: all 0.3s ease;
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        --primary-color: #ffffff;
        --secondary-color: #1a1a1a;
        --text-primary: #ffffff;
        --text-secondary: #b0b0b0;
        --background: #1a1a1a;
        --background-light: #2a2a2a;
        --border-color: #333333;
    }
}

body {
    font-family: var(--font-family);
    color: var(--text-primary);
    background-color: var(--background);
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(0, 102, 204, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 102, 204, 0.03) 0%, transparent 50%);
    background-attachment: fixed;
    line-height: 1.6;
    font-size: var(--font-size-base);
}

/* ==========================================
   Container & Layout
   ========================================== */

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ==========================================
   Header
   ========================================== */

.header {
    padding: var(--spacing-lg) 0;
    margin-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
    background: linear-gradient(135deg, 
        rgba(0, 102, 204, 0.02) 0%, 
        rgba(0, 102, 204, 0.01) 100%);
    position: sticky;
    top: 0;
    z-index: 999;
    backdrop-filter: blur(10px);
}

.header::after {
    content: '';
    position: absolute;
    top: 0;
    right: -200px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(0, 102, 204, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    z-index: 1;
}

.header-title-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.header-logo {
    width: 48px;
    height: 48px;
    object-fit: contain;
    transition: var(--transition);
}

.header-logo:hover {
    transform: scale(1.05) rotate(2deg);
}

.back-link {
    color: var(--accent-color);
    text-decoration: none;
    font-size: var(--font-size-lg);
    font-weight: 500;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.back-link:hover {
    color: var(--accent-hover);
}

h1 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--text-primary), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ==========================================
   Language Switcher
   ========================================== */

.language-switcher {
    display: flex;
    gap: var(--spacing-sm);
}

.lang-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--border-color);
    background-color: transparent;
    color: var(--text-primary);
    border-radius: 4px;
    cursor: pointer;
    font-size: var(--font-size-base);
    transition: var(--transition);
    font-weight: 500;
}

.lang-btn:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.lang-btn.active {
    background-color: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

/* Language Dropdown */
.lang-dropdown-wrapper {
    position: relative;
    min-width: 140px;
}

.lang-dropdown-button {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 2px solid var(--border-color);
    background-color: var(--background);
    color: var(--text-primary);
    border-radius: 6px;
    cursor: pointer;
    font-size: var(--font-size-base);
    font-weight: 500;
    transition: var(--transition);
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-sm);
}

.lang-dropdown-button:hover {
    border-color: var(--accent-color);
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.15);
}

.lang-dropdown-button:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.lang-dropdown-icon {
    width: 20px;
    height: 20px;
    transition: transform 0.2s ease;
    flex-shrink: 0;
}

.lang-dropdown-button[aria-expanded="true"] .lang-dropdown-icon {
    transform: rotate(180deg);
}

.lang-dropdown-menu {
    position: fixed;
    background-color: var(--background);
    border: 2px solid var(--border-color);
    border-radius: 6px;
    list-style: none;
    margin: 0;
    padding: 4px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
    z-index: 1000;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
    max-height: 300px;
    overflow-y: auto;
    min-width: 140px;
    scrollbar-width: thin;
    scrollbar-color: var(--accent-color) var(--background-light);
}

/* Webkit browsers (Chrome, Safari, Edge) */
.lang-dropdown-menu::-webkit-scrollbar {
    width: 8px;
}

.lang-dropdown-menu::-webkit-scrollbar-track {
    background: var(--background-light);
    border-radius: 4px;
}

.lang-dropdown-menu::-webkit-scrollbar-thumb {
    background: var(--accent-color);
    border-radius: 4px;
    border: 2px solid var(--background-light);
}

.lang-dropdown-menu::-webkit-scrollbar-thumb:hover {
    background: var(--accent-color-hover, var(--accent-color));
}

.lang-dropdown-menu.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-dropdown-item {
    display: block;
    padding: var(--spacing-sm);
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
    border-left: 3px solid transparent;
    margin: 0 4px;
    border-radius: 4px;
}

.lang-dropdown-item:hover {
    background-color: var(--background-light);
    color: var(--accent-color);
    border-left-color: var(--accent-color);
}

.lang-dropdown-item.active {
    background-color: var(--background-light);
    color: var(--accent-color);
    font-weight: 600;
    border-left-color: var(--accent-color);
}

@media (prefers-color-scheme: dark) {
    .lang-dropdown-menu {
        border-color: var(--border-color);
        box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
    }
}

/* ==========================================
   Main Content
   ========================================== */

.main-content {
    flex: 1;
    margin-bottom: var(--spacing-xl);
}

/* ==========================================
   App Grid / Cards
   ========================================== */

.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

@keyframes metallic-shine {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

.app-card {
    padding: var(--spacing-lg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: linear-gradient(135deg, var(--background-light) 0%, var(--background-light) 100%);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.app-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    right: 0;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(255, 255, 255, 0.2) 25%, 
        rgba(255, 255, 255, 0.5) 50%, 
        rgba(255, 255, 255, 0.2) 75%, 
        transparent 100%);
    opacity: 0;
    pointer-events: none;
    width: 40%;
}

.app-card:hover {
    border-color: var(--accent-color);
    box-shadow: 0 12px 24px rgba(0, 102, 204, 0.15);
    transform: translateY(-4px);
}

.app-card:hover::before {
    opacity: 1;
    animation: metallic-shine 0.6s ease-in-out;
}

.app-content-wrapper {
    display: flex;
    gap: var(--spacing-lg);
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
}

.app-image {
    width: 120px;
    height: 120px;
    border-radius: 8px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--background) 0%, var(--accent-color) 100%);
    background-color: var(--background);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.1);
}

.app-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: var(--transition);
    padding: 10px;
}

.app-card:hover .app-image img {
    transform: scale(1.15) rotate(2deg);
}

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

.app-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: var(--spacing-md);
    gap: var(--spacing-sm);
}

.app-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin: 0;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.app-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: linear-gradient(135deg, var(--accent-color) 0%, #0052a3 100%);
    color: white;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    white-space: nowrap;
    box-shadow: 0 2px 8px rgba(0, 102, 204, 0.2);
}

.app-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    flex-grow: 1;
    overflow: auto;
}

.app-link {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    align-self: flex-start;
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.app-link::after {
    content: '';
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-color), transparent);
    transition: width 0.3s ease;
    position: absolute;
    bottom: -2px;
    left: 0;
}

.app-link:hover {
    color: var(--accent-hover);
}

.app-link:hover::after {
    width: 100%;
}

/* ==========================================
   App Detail Page
   ========================================== */

.app-detail-header {
    margin-bottom: var(--spacing-xl);
    text-align: center;
    padding: var(--spacing-lg) var(--spacing-md);
    background: linear-gradient(135deg, 
        rgba(0, 102, 204, 0.05) 0%, 
        rgba(0, 102, 204, 0.02) 100%);
    border-radius: 12px;
    position: relative;
    overflow: hidden;
}

.app-detail-header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(0, 102, 204, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.app-detail-header > * {
    position: relative;
    z-index: 1;
}

.app-detail-image {
    width: 100%;
    max-width: 330px;
    height: auto;
    margin: 0 auto var(--spacing-xl);
    border-radius: 12px;
    overflow: hidden;
    background-color: var(--background-light);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 24px rgba(0, 102, 204, 0.15);
    transition: transform 0.3s ease;
}

.app-detail-image:hover {
    transform: scale(1.02);
}

.app-detail-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.app-detail-header h1 {
    margin-bottom: var(--spacing-sm);
}

.app-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
}

/* ==========================================
   Privacy Section
   ========================================== */

.privacy-section {
    margin-bottom: var(--spacing-xl);
}

.privacy-section h2 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-lg);
    font-weight: 700;
    background: linear-gradient(135deg, var(--text-primary), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.privacy-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.privacy-box {
    padding: var(--spacing-lg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: linear-gradient(135deg, 
        var(--background-light) 0%, 
        rgba(0, 102, 204, 0.02) 100%);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.privacy-box::before {
    content: '';
    position: absolute;
    top: 0;
    right: -50%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(0, 102, 204, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.privacy-box:hover {
    border-color: var(--accent-color);
    box-shadow: 0 8px 16px rgba(0, 102, 204, 0.1);
    transform: translateY(-2px);
}

.privacy-box:hover::before {
    opacity: 1;
}

.privacy-box h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    position: relative;
    z-index: 1;
}

.privacy-box p {
    color: var(--text-secondary);
    line-height: 1.8;
    position: relative;
    z-index: 1;
}

.legal-notice {
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, 
        rgba(0, 102, 204, 0.05) 0%, 
        rgba(0, 102, 204, 0.02) 100%);
    border: 2px solid var(--accent-color);
    border-radius: 8px;
    margin-top: var(--spacing-lg);
    position: relative;
    overflow: hidden;
}

.legal-notice::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 4px;
    height: 100%;
    background: var(--accent-color);
}

.legal-notice h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
    position: relative;
    z-index: 1;
}

.legal-notice p {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 0.95rem;
    position: relative;
    z-index: 1;
}

/* ==========================================
   Features Section
   ========================================== */

.features-section {
    margin-bottom: var(--spacing-xl);
}

.features-section h2 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-lg);
    font-weight: 700;
    background: linear-gradient(135deg, var(--text-primary), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.features-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.features-list li {
    padding: var(--spacing-md);
    background: linear-gradient(135deg, 
        var(--background-light) 0%, 
        rgba(0, 102, 204, 0.02) 100%);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: var(--font-size-base);
    line-height: 1.6;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.features-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 3px;
    height: 100%;
    background: linear-gradient(180deg, var(--accent-color), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.features-list li:hover {
    border-color: var(--accent-color);
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.1);
    transform: translateX(4px);
}

.features-list li:hover::before {
    opacity: 1;
}

/* ==========================================
   Footer
   ========================================== */

.footer {
    padding-top: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
    background: linear-gradient(135deg, 
        rgba(0, 102, 204, 0.02) 0%, 
        rgba(0, 102, 204, 0.01) 100%);
    position: relative;
    margin-top: var(--spacing-xl);
}

.footer::before {
    content: '';
    position: absolute;
    left: -200px;
    bottom: 0;
    width: 400px;
    height: 300px;
    background: radial-gradient(circle, rgba(0, 102, 204, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.footer p {
    position: relative;
    z-index: 1;
}

/* ==========================================
   Responsive Design
   ========================================== */

@media (max-width: 768px) {
    :root {
        --font-size-3xl: 2rem;
        --font-size-2xl: 1.75rem;
        --spacing-xl: 2rem;
        --spacing-lg: 1.5rem;
    }

    .container {
        padding: var(--spacing-md);
    }

    .header {
        padding: var(--spacing-md) 0;
    }

    .header-content {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: stretch;
    }

    .header-title-section {
        gap: var(--spacing-md);
    }

    .header-logo {
        width: 40px;
        height: 40px;
    }

    h1 {
        font-size: var(--font-size-2xl);
    }

    .back-link {
        font-size: var(--font-size-base);
    }

    .lang-dropdown-button {
        width: 100%;
        justify-content: space-between;
    }

    .apps-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .app-content-wrapper {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .app-image {
        width: 100px;
        height: 100px;
    }

    .app-detail-image {
        max-width: 100%;
    }

    .privacy-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .features-list {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .privacy-box,
    .features-list li {
        padding: var(--spacing-md);
    }

    .app-detail-header {
        padding: var(--spacing-md);
    }

    .features-section h2,
    .privacy-section h2 {
        font-size: var(--font-size-xl);
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-3xl: 1.5rem;
        --font-size-2xl: 1.25rem;
        --font-size-xl: 1.1rem;
        --spacing-xl: 1.5rem;
        --spacing-lg: 1.25rem;
        --spacing-md: 0.875rem;
    }

    .container {
        padding: var(--spacing-sm);
    }

    .header {
        padding: var(--spacing-sm) 0;
    }

    .header-title-section {
        gap: var(--spacing-sm);
    }

    .header-logo {
        width: 36px;
        height: 36px;
    }

    h1 {
        font-size: var(--font-size-2xl);
        margin: 0;
    }

    .header-content {
        gap: var(--spacing-sm);
    }

    .lang-dropdown-button {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.9rem;
    }

    .lang-dropdown-menu {
        min-width: 120px;
    }

    .lang-dropdown-item {
        padding: var(--spacing-xs);
        font-size: 0.9rem;
    }

    .back-link {
        font-size: 0.9rem;
        gap: var(--spacing-xs);
    }

    .app-card {
        padding: var(--spacing-md);
    }

    .app-content-wrapper {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .app-image {
        width: 80px;
        height: 80px;
    }

    .app-title {
        font-size: var(--font-size-lg);
    }

    .app-badge {
        font-size: 0.75rem;
        padding: var(--spacing-xs) var(--spacing-sm);
    }

    .app-description {
        font-size: 0.9rem;
    }

    .app-detail-image {
        max-width: 100%;
        height: auto;
        margin-bottom: var(--spacing-lg);
    }

    .app-detail-header {
        padding: var(--spacing-md);
        border-radius: 8px;
    }

    .app-detail-header h1 {
        font-size: var(--font-size-2xl);
        margin-bottom: var(--spacing-xs);
    }

    .app-subtitle {
        font-size: var(--font-size-base);
    }

    .features-section,
    .privacy-section {
        margin-bottom: var(--spacing-lg);
    }

    .features-section h2,
    .privacy-section h2 {
        font-size: var(--font-size-lg);
        margin-bottom: var(--spacing-md);
    }

    .privacy-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .features-list {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .privacy-box,
    .features-list li {
        padding: var(--spacing-sm);
        font-size: 0.9rem;
    }

    .legal-notice {
        padding: var(--spacing-md);
        margin-top: var(--spacing-md);
    }

    .legal-notice h3 {
        font-size: var(--font-size-base);
    }

    .footer {
        padding: var(--spacing-md) 0;
        font-size: 0.85rem;
    }
}

/* ==========================================
   Accessibility
   ========================================== */

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

/* ==========================================
   Accessibility
   ========================================== */

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

button:focus,
a:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* ==========================================
   Print Styles
   ========================================== */

@media print {
    body {
        background-color: white;
    }

    .language-switcher,
    .back-link {
        display: none;
    }
}

/* ==========================================
   Detailseite – bessere Lesbarkeit
   ========================================== */

.app-detail-header {
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
    text-align: center;
}

.features-section,
.privacy-section {
    max-width: 1000px;
    margin: 0 auto var(--spacing-xl);
}

.features-list {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.features-list li strong {
    display: inline-block;
    margin-bottom: 0.25rem;
}