/* iOS 26 Liquid Glass Design für Driveo.cloud */
:root {
    /* iOS 26 Color System */
    --bg-primary: #000000;
    --bg-secondary: #1c1c1e;
    --bg-tertiary: #2c2c2e;
    --bg-quaternary: #3a3a3c;
    
    /* Liquid Glass Colors */
    --glass-primary: rgba(255, 255, 255, 0.08);
    --glass-secondary: rgba(255, 255, 255, 0.12);
    --glass-tertiary: rgba(255, 255, 255, 0.16);
    --glass-accent: rgba(255, 255, 255, 0.20);
    
    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #ebebf5;
    --text-tertiary: #ebebf599;
    --text-quaternary: #ebebf54d;
    --text-muted: #8e8e93;
    
    /* iOS 26 Accent Colors */
    --accent-blue: #007aff;
    --accent-purple: #af52de;
    --accent-pink: #ff2d92;
    --accent-orange: #ff9500;
    --accent-green: #34c759;
    --accent-red: #ff3b30;
    --accent-yellow: #ffcc00;
    
    /* Glass Effects */
    --glass-blur: blur(20px);
    --glass-blur-strong: blur(40px);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-border-strong: rgba(255, 255, 255, 0.2);
    
    /* Shadows */
    --shadow-soft: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-medium: 0 8px 32px rgba(0, 0, 0, 0.16);
    --shadow-strong: 0 16px 64px rgba(0, 0, 0, 0.24);
    --shadow-glow: 0 0 20px rgba(0, 122, 255, 0.3);
    
    /* Border Radius */
    --radius-small: 8px;
    --radius-medium: 12px;
    --radius-large: 16px;
    --radius-xl: 20px;
    --radius-2xl: 24px;
    --radius-full: 50px;
    
    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;
}

/* iOS 26 Liquid Glass Base Styles */
body {
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', system-ui, sans-serif;
    font-weight: 400;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Liquid Glass Container */
.liquid-glass {
    background: var(--glass-primary);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-large);
    box-shadow: var(--shadow-soft);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.liquid-glass:hover {
    background: var(--glass-secondary);
    border-color: var(--glass-border-strong);
    box-shadow: var(--shadow-medium);
    transform: translateY(-2px);
}

.liquid-glass-strong {
    background: var(--glass-tertiary);
    backdrop-filter: var(--glass-blur-strong);
    -webkit-backdrop-filter: var(--glass-blur-strong);
    border: 1px solid var(--glass-border-strong);
}

/* iOS 26 Sidebar */
body.dark-mode .sidebar {
    background: var(--glass-primary);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-right: 1px solid var(--glass-border);
    box-shadow: var(--shadow-soft);
}

body.dark-mode .sidebar-header {
    border-bottom: 1px solid var(--glass-border);
}

body.dark-mode .sidebar-menu .nav-link {
    color: var(--text-secondary);
    border-radius: var(--radius-medium);
    margin: var(--space-xs) var(--space-sm);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

body.dark-mode .sidebar-menu .nav-link:hover,
body.dark-mode .sidebar-menu .nav-link.active {
    background: var(--glass-secondary);
    color: var(--text-primary);
}

/* Main Content */
body.dark-mode .main-content {
    background: var(--bg-primary);
}

/* Stats Cards */
body.dark-mode .stats-card {
    background: var(--glass-primary) !important;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-large);
    color: var(--text-primary);
    box-shadow: var(--shadow-soft);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body.dark-mode .stats-card:hover {
    background: var(--glass-secondary) !important;
    border-color: var(--glass-border-strong);
    box-shadow: var(--shadow-medium);
    transform: translateY(-4px) scale(1.02);
}

/* File Items */
body.dark-mode .file-item {
    background: var(--glass-primary) !important;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-medium);
    color: var(--text-primary);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body.dark-mode .file-item:hover {
    background: var(--glass-secondary) !important;
    border-color: var(--glass-border-strong);
    box-shadow: var(--shadow-medium);
    transform: translateY(-2px) scale(1.01);
}

/* Upload Area */
body.dark-mode .upload-area {
    background: var(--glass-primary) !important;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 2px dashed var(--accent-blue);
    border-radius: var(--radius-large);
    color: var(--text-primary);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body.dark-mode .upload-area:hover {
    background: var(--glass-secondary) !important;
    border-color: var(--accent-purple);
    box-shadow: var(--shadow-glow);
}

body.dark-mode .upload-area.dragover {
    background: var(--glass-tertiary) !important;
    border-color: var(--accent-pink);
    transform: scale(1.02);
}

/* Form Controls */
body.dark-mode .form-control {
    background: var(--glass-primary);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-medium);
    color: var(--text-primary);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

body.dark-mode .form-control:focus {
    background: var(--glass-secondary);
    border-color: var(--accent-blue);
    color: var(--text-primary);
    box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.1);
    transform: translateY(-1px);
}

body.dark-mode .form-control::placeholder {
    color: var(--text-muted);
}

body.dark-mode .form-select {
    background: var(--glass-primary);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-medium);
    color: var(--text-primary);
}

body.dark-mode .form-select:focus {
    background: var(--glass-secondary);
    border-color: var(--accent-blue);
    color: var(--text-primary);
    box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.1);
}

/* Modals */
body.dark-mode .modal-content {
    background: var(--glass-primary);
    backdrop-filter: var(--glass-blur-strong);
    -webkit-backdrop-filter: var(--glass-blur-strong);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
    color: var(--text-primary);
    box-shadow: var(--shadow-strong);
}

body.dark-mode .modal-header {
    border-bottom: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
}

body.dark-mode .modal-footer {
    border-top: 1px solid var(--glass-border);
    border-radius: 0 0 var(--radius-2xl) var(--radius-2xl);
}

/* Buttons */
body.dark-mode .btn-primary {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    border: none;
    border-radius: var(--radius-medium);
    color: white;
    font-weight: 600;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-soft);
}

body.dark-mode .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-pink));
}

body.dark-mode .btn-outline-primary {
    background: var(--glass-primary);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--accent-blue);
    border-radius: var(--radius-medium);
    color: var(--accent-blue);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

body.dark-mode .btn-outline-primary:hover {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
    color: white;
    transform: translateY(-1px);
}

body.dark-mode .btn-outline-secondary {
    background: var(--glass-primary);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-medium);
    color: var(--text-secondary);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

body.dark-mode .btn-outline-secondary:hover {
    background: var(--glass-secondary);
    border-color: var(--glass-border-strong);
    color: var(--text-primary);
    transform: translateY(-1px);
}

/* Text Colors */
body.dark-mode .text-muted {
    color: var(--text-muted) !important;
}

body.dark-mode .text-secondary {
    color: var(--text-secondary) !important;
}

/* Alerts - Verbesserte Sichtbarkeit */
body.dark-mode .alert {
    background: var(--glass-primary);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-medium);
    color: var(--text-primary);
    position: relative;
    z-index: 9999;
    box-shadow: var(--shadow-strong);
    margin: 10px 0;
    padding: 16px 20px;
    font-weight: 500;
    animation: alertSlideIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes alertSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

body.dark-mode .alert-success {
    background: rgba(52, 199, 89, 0.15);
    border-color: var(--accent-green);
    color: var(--accent-green);
    box-shadow: 0 0 20px rgba(52, 199, 89, 0.2);
}

body.dark-mode .alert-danger {
    background: rgba(255, 59, 48, 0.15);
    border-color: var(--accent-red);
    color: var(--accent-red);
    box-shadow: 0 0 20px rgba(255, 59, 48, 0.2);
}

body.dark-mode .alert-warning {
    background: rgba(255, 204, 0, 0.15);
    border-color: var(--accent-yellow);
    color: var(--accent-yellow);
    box-shadow: 0 0 20px rgba(255, 204, 0, 0.2);
}

body.dark-mode .alert-info {
    background: rgba(0, 122, 255, 0.15);
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    box-shadow: 0 0 20px rgba(0, 122, 255, 0.2);
}

/* Alert Container - Kompakte Positionierung */
#alertContainer {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    max-width: 350px;
    width: auto;
}

/* Alert Close Button */
body.dark-mode .alert .btn-close {
    background: none;
    border: none;
    color: inherit;
    opacity: 0.7;
    font-size: 1.2rem;
    padding: 0;
    margin-left: 10px;
    transition: opacity 0.2s ease;
}

body.dark-mode .alert .btn-close:hover {
    opacity: 1;
    color: inherit;
}

/* Notification System - Kompakte Styles */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--glass-primary);
    backdrop-filter: var(--glass-blur-strong);
    -webkit-backdrop-filter: var(--glass-blur-strong);
    border-radius: var(--radius-large);
    padding: 16px 20px;
    box-shadow: var(--shadow-strong);
    border: 1px solid var(--glass-border);
    z-index: 10000;
    animation: notificationSlideIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    color: white;
    max-width: 350px;
    width: auto;
}

@keyframes notificationSlideIn {
    from {
        opacity: 0;
        transform: translateX(30px) translateY(-20px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateX(0) translateY(0) scale(1);
    }
}

@keyframes slideUp {
    from {
        opacity: 1;
        transform: translateX(0) translateY(0) scale(1);
    }
    to {
        opacity: 0;
        transform: translateX(30px) translateY(-20px) scale(0.9);
    }
}

@keyframes alertSlideOut {
    from {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
    to {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }
}
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

/* iOS 26 Dark Mode Toggle */
.dark-mode-toggle {
    position: fixed;
    top: var(--space-lg);
    right: var(--space-lg);
    z-index: 9999;
    background: var(--glass-primary);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    padding: var(--space-sm) var(--space-md);
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-soft);
    font-size: 0.875rem;
    font-weight: 600;
}

.dark-mode-toggle:hover {
    background: var(--glass-secondary);
    border-color: var(--glass-border-strong);
    transform: translateY(-2px) scale(1.05);
    box-shadow: var(--shadow-medium);
}

.dark-mode-toggle:active {
    transform: translateY(0) scale(0.95);
}

.dark-mode-toggle i {
    font-size: 1rem;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.dark-mode-toggle:hover i {
    transform: rotate(15deg);
}

/* iOS 26 Language Toggle */
.language-toggle {
    position: fixed;
    top: var(--space-lg);
    right: 140px;
    z-index: 1000;
    background: var(--glass-primary);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    padding: var(--space-xs) var(--space-sm);
    box-shadow: var(--shadow-soft);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.language-toggle:hover {
    background: var(--glass-secondary);
    border-color: var(--glass-border-strong);
    transform: translateY(-1px);
    box-shadow: var(--shadow-medium);
}

.language-toggle button {
    background: none;
    border: none;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-medium);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.language-toggle button.active {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    color: white;
    transform: scale(1.05);
}

.language-toggle button:hover:not(.active) {
    background: var(--glass-secondary);
    color: var(--text-primary);
    transform: scale(1.02);
}

/* iOS 26 Animations */
@keyframes liquidFlow {
    0% { transform: translateX(-100%) rotate(0deg); }
    50% { transform: translateX(0%) rotate(180deg); }
    100% { transform: translateX(100%) rotate(360deg); }
}

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

@keyframes pulseGlow {
    0%, 100% { box-shadow: var(--shadow-soft); }
    50% { box-shadow: var(--shadow-glow); }
}

/* Liquid Glass Shimmer Effect */
.liquid-glass::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.1),
        transparent
    );
    animation: glassShimmer 3s infinite;
    border-radius: inherit;
}

/* iOS 26 Focus States */
*:focus-visible {
    outline: 2px solid var(--accent-blue);
    outline-offset: 2px;
    border-radius: var(--radius-small);
}

/* iOS 26 Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: var(--radius-small);
}

::-webkit-scrollbar-thumb {
    background: var(--glass-secondary);
    border-radius: var(--radius-small);
    border: 1px solid var(--glass-border);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--glass-tertiary);
}

/* iOS 26 Selection */
::selection {
    background: rgba(0, 122, 255, 0.3);
    color: var(--text-primary);
}

/* iOS 26 Upload Buttons */
.upload-buttons .btn {
    padding: 8px 16px !important;
    font-weight: 500 !important;
    font-size: 0.875rem !important;
    border-radius: var(--radius-medium);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Quick Action Cards - Force White Icons */
.quick-action-card i {
    color: white !important;
}

.quick-action-card:hover i {
    color: white !important;
}

/* Responsive Design */
@media (max-width: 768px) {
    .dark-mode-toggle {
        top: var(--space-md);
        right: var(--space-md);
        padding: var(--space-xs) var(--space-sm);
        font-size: 0.75rem;
    }
    
    .language-toggle {
        padding: var(--space-xs);
        top: var(--space-md);
        right: 80px;
    }
    
    .language-toggle button {
        padding: var(--space-xs);
        font-size: 0.75rem;
    }
    
    :root {
        --space-lg: 16px;
        --space-xl: 24px;
        --space-2xl: 32px;
    }
    
    /* Mobile Sidebar */
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 1000;
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
        padding: 16px;
    }
    
}

@media (max-width: 480px) {
    .dark-mode-toggle {
        top: var(--space-sm);
        right: var(--space-sm);
    }
    
    .language-toggle {
        position: fixed;
        top: var(--space-sm);
        right: 80px;
    }
    
    .dark-mode-toggle {
        position: fixed;
        top: var(--space-sm);
        right: var(--space-sm);
    }
    
    
    /* Mobile Sidebar Adjustments */
    .sidebar {
        width: 100%;
        max-width: 320px;
    }
    
    .sidebar-header {
        padding: 20px;
    }
    
    .sidebar-menu {
        padding: 20px 0;
    }
    
    .sidebar-menu .nav-link {
        padding: 16px 20px;
        margin: 8px 12px;
        font-size: 1rem;
    }
    
    /* Mobile Profile Menu */
    .profile-avatar {
        width: 36px;
        height: 36px;
    }
    
    .profile-menu {
        right: 8px;
        top: 50px;
        width: 200px;
        max-width: calc(100vw - 16px);
    }
}