/**
 * Unified Dark/Light Mode System für MYP Platform
 * ===============================================
 * 
 * Konsolidiert alle Theme-Inkonsistenzen in einer einheitlichen Implementierung
 * Ersetzt: input.css, components.css, professional-theme.css Dark Mode-Teile
 * 
 * Author: Till Tomczak - MYP Team
 * Zweck: Behebung aller UI Dark/Light Mode Inkonsistenzen
 */

/* ===== UNIFIED CSS VARIABLES SYSTEM ===== */
:root {
    /* === MERCEDES-BENZ BRAND COLORS === */
    --mb-primary: #0073ce;
    --mb-primary-dark: #005a9f;
    --mb-primary-light: #1e88e5;
    --mb-secondary: #00adef;
    --mb-black: #000000;
    --mb-white: #ffffff;
    --mb-silver: #c4c4c4;
    --mb-gray: #666666;
    
    /* === LIGHT MODE FOUNDATION === */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-card: #ffffff;
    --bg-surface: #fefefe;
    --bg-overlay: rgba(255, 255, 255, 0.95);
    --bg-modal: rgba(255, 255, 255, 0.98);
    --bg-input: #ffffff;
    --bg-input-focus: #ffffff;
    
    /* === TEXT COLORS LIGHT === */
    --text-primary: #111827;
    --text-secondary: #374151;
    --text-tertiary: #6b7280;
    --text-muted: #9ca3af;
    --text-accent: var(--mb-primary);
    --text-on-primary: var(--mb-white);
    --text-success: #059669;
    --text-warning: #d97706;
    --text-error: #dc2626;
    
    /* === BORDER COLORS LIGHT === */
    --border-primary: #e5e7eb;
    --border-secondary: #d1d5db;
    --border-focus: var(--mb-primary);
    --border-error: #f87171;
    --border-success: #34d399;
    
    /* === SHADOWS LIGHT === */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-modal: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* === GLASSMORPHISM LIGHT === */
    --glass-bg: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    --glass-blur: blur(16px);
    
    /* === INTERACTIVE STATES LIGHT === */
    --hover-bg: rgba(0, 115, 206, 0.04);
    --active-bg: rgba(0, 115, 206, 0.08);
    --focus-ring: 0 0 0 3px rgba(0, 115, 206, 0.1);
    
    /* === GRADIENTS LIGHT === */
    --gradient-primary: linear-gradient(135deg, #ffffff 0%, #fafbfc 100%);
    --gradient-card: linear-gradient(135deg, #ffffff 0%, #fcfcfd 100%);
    --gradient-modal: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    --gradient-button: linear-gradient(135deg, var(--mb-primary) 0%, var(--mb-primary-dark) 100%);
}

/* ===== DARK MODE OVERRIDES ===== */
.dark {
    /* === DARK MODE FOUNDATION === */
    --bg-primary: #000000;
    --bg-secondary: #0f0f0f;
    --bg-tertiary: #1f1f1f;
    --bg-card: #1a1a1a;
    --bg-surface: #151515;
    --bg-overlay: rgba(0, 0, 0, 0.95);
    --bg-modal: rgba(26, 26, 26, 0.98);
    --bg-input: #1a1a1a;
    --bg-input-focus: #222222;
    
    /* === TEXT COLORS DARK === */
    --text-primary: #ffffff;
    --text-secondary: #f1f5f9;
    --text-tertiary: #e2e8f0;
    --text-muted: #cbd5e1;
    --text-accent: #ffffff;
    --text-on-primary: #000000;
    --text-success: #22c55e;
    --text-warning: #fbbf24;
    --text-error: #f87171;
    
    /* === BORDER COLORS DARK === */
    --border-primary: #2d2d2d;
    --border-secondary: #404040;
    --border-focus: #ffffff;
    --border-error: #f87171;
    --border-success: #22c55e;
    
    /* === SHADOWS DARK === */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6);
    --shadow-modal: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
    
    /* === GLASSMORPHISM DARK === */
    --glass-bg: rgba(26, 26, 26, 0.85);
    --glass-border: rgba(255, 255, 255, 0.15);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    --glass-blur: blur(16px);
    
    /* === INTERACTIVE STATES DARK === */
    --hover-bg: rgba(255, 255, 255, 0.08);
    --active-bg: rgba(255, 255, 255, 0.12);
    --focus-ring: 0 0 0 3px rgba(255, 255, 255, 0.2);
    
    /* === GRADIENTS DARK === */
    --gradient-primary: linear-gradient(135deg, #000000 0%, #0f0f0f 100%);
    --gradient-card: linear-gradient(135deg, #1a1a1a 0%, #151515 100%);
    --gradient-modal: linear-gradient(135deg, #1f1f1f 0%, #1a1a1a 100%);
    --gradient-button: linear-gradient(135deg, #ffffff 0%, #f5f5f5 100%);
}

/* ===== UNIFIED COMPONENT STYLES ===== */

/* === OPTIMIZED ROUNDED BORDERS (Performance-optimiert) === */
.btn, .form-input, input, textarea, select, button {
    border-radius: 12px;
}

.card, .modal, .glass-card, .mercedes-modal {
    border-radius: 20px;
}

.badge, .btn-sm {
    border-radius: 16px;
}

.avatar, .profile-image {
    border-radius: 50%;
}

/* === OPTIMIZED SPACING (Nur bei Bedarf verwenden) === */
.spacing-xs { margin: 0.25rem; padding: 0.25rem; }
.spacing-sm { margin: 0.5rem; padding: 0.5rem; }
.spacing-md { margin: 1rem; padding: 1rem; }

/* === BUTTONS === */
.btn {
    @apply inline-flex items-center justify-center px-4 py-2 text-sm font-medium;
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-primary);
    box-shadow: var(--shadow-sm);
    transition: background-color 0.15s ease, box-shadow 0.15s ease;
}

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

.btn:focus {
    outline: none;
    box-shadow: var(--focus-ring);
}

.btn-primary {
    background: var(--gradient-button);
    color: var(--text-on-primary);
    border: none;
}

.btn-primary:hover {
    background: var(--mb-primary-dark);
    transform: translateY(-1px);
}

.dark .btn-primary {
    background: var(--gradient-button);
    color: var(--text-on-primary);
}

.dark .btn-primary:hover {
    background: #f0f0f0;
}

/* === CARDS === */
.card {
    background: var(--gradient-card);
    border: 1px solid var(--border-primary);
    box-shadow: var(--shadow-lg);
    backdrop-filter: var(--glass-blur);
    transition: box-shadow 0.2s ease;
    padding: 1.25rem;
}

.card:hover {
    box-shadow: var(--shadow-xl);
}

.glass-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    backdrop-filter: var(--glass-blur);
    padding: 1.25rem;
}

/* === MODALS === */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(8px);
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    cursor: pointer;
}

.modal-overlay.hidden {
    display: none !important;
}

.dark .modal-overlay {
    background: rgba(0, 0, 0, 0.7);
}

.modal {
    background: var(--gradient-modal);
    border: 1px solid var(--border-primary);
    border-radius: 20px;
    box-shadow: var(--shadow-modal);
    backdrop-filter: var(--glass-blur);
    max-width: 90vw;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.95);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: default;
}

.modal.show {
    transform: scale(1);
    opacity: 1;
}

.modal-header {
    border-bottom: 1px solid var(--border-primary);
    color: var(--text-primary);
}

.modal-body {
    color: var(--text-secondary);
}

/* Mercedes Modal Specific Styling */
.mercedes-modal {
    background: var(--gradient-modal);
    border: 1px solid var(--border-primary);
    border-radius: 20px;
    box-shadow: var(--shadow-modal);
    backdrop-filter: var(--glass-blur);
    max-width: 90vw;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.95);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    scrollbar-width: thin;
    scrollbar-color: rgba(0, 115, 206, 0.2) transparent;
    cursor: default;
}

.mercedes-modal.show {
    transform: scale(1);
    opacity: 1;
}

.mercedes-modal::-webkit-scrollbar {
    width: 8px;
}

.mercedes-modal::-webkit-scrollbar-track {
    background: transparent;
    border-radius: 4px;
}

.mercedes-modal::-webkit-scrollbar-thumb {
    background: rgba(0, 115, 206, 0.2);
    border-radius: 4px;
    transition: all 0.3s ease;
}

.mercedes-modal::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 115, 206, 0.4);
}

.dark .mercedes-modal::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
}

.dark .mercedes-modal::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.4);
}

/* Modal Animation Classes */
.modal-enter {
    opacity: 0;
    transform: scale(0.9) translateY(-20px);
}

.modal-enter-active {
    opacity: 1;
    transform: scale(1) translateY(0);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal-exit {
    opacity: 1;
    transform: scale(1) translateY(0);
}

.modal-exit-active {
    opacity: 0;
    transform: scale(0.9) translateY(-20px);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Modal Overlay Click-to-Close Functionality */
.modal-overlay[data-closable="true"] {
    cursor: pointer;
}

.modal-overlay[data-closable="true"] .mercedes-modal {
    cursor: default;
}

/* === FORM ELEMENTS === */
.form-input, input, textarea, select {
    @apply w-full;
    background: var(--bg-input);
    border: 2px solid var(--border-primary);
    color: var(--text-primary);
    padding: 1rem 1.25rem;
    border-radius: 16px;
    margin: 0.5rem 0;
    transition: all 0.15s ease;
    font-size: 0.95rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.form-input:focus, input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--border-focus);
    background: var(--bg-input-focus);
    box-shadow: var(--focus-ring), 0 4px 12px rgba(0, 0, 0, 0.1);
    transform: translateY(-1px);
}

.form-input::placeholder, input::placeholder, textarea::placeholder {
    color: var(--text-muted);
    font-style: italic;
}

/* Dark Mode Input Spezifika */
.dark .form-input, .dark input, .dark textarea, .dark select {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    border-color: var(--border-primary);
}

.dark .form-input:focus, .dark input:focus, .dark textarea:focus, .dark select:focus {
    box-shadow: var(--focus-ring), 0 4px 16px rgba(0, 0, 0, 0.4);
    border-color: var(--border-focus);
}

.form-label, label {
    @apply block text-sm font-semibold;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    margin-top: 1.25rem;
}

/* === NAVIGATION === */
.nav-item {
    @apply px-4 py-2;
    color: var(--text-secondary);
    transition: background-color 0.15s ease, color 0.15s ease;
}

.nav-item:hover {
    background: var(--hover-bg);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--active-bg);
    color: var(--text-accent);
}

/* === ALERTS === */
.alert {
    @apply border;
    background: var(--bg-card);
    border-color: var(--border-primary);
    border-radius: 16px !important;
    padding: 1.25rem;
    margin: 1rem 0;
}

.alert-info {
    background: rgba(0, 115, 206, 0.1);
    border-color: var(--mb-primary);
    color: var(--mb-primary);
}

.dark .alert-info {
    background: rgba(0, 115, 206, 0.2);
    color: var(--mb-white);
}

.alert-success {
    background: rgba(5, 150, 105, 0.1);
    border-color: var(--text-success);
    color: var(--text-success);
}

.alert-warning {
    background: rgba(217, 119, 6, 0.1);
    border-color: var(--text-warning);
    color: var(--text-warning);
}

.alert-error {
    background: rgba(220, 38, 38, 0.1);
    border-color: var(--text-error);
    color: var(--text-error);
}

/* === TABLES === */
.table {
    @apply w-full border-collapse;
    border-radius: 16px !important;
    overflow: hidden;
    margin: 1rem 0;
}

.table th {
    @apply text-left text-sm font-medium uppercase tracking-wider;
    background: var(--bg-tertiary);
    color: var(--text-tertiary);
    border-bottom: 1px solid var(--border-primary);
    padding: 1rem 1.5rem;
}

.table td {
    @apply text-sm;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-primary);
    padding: 1rem 1.5rem;
}

.table tbody tr:hover {
    background: var(--hover-bg);
}

/* === TOOLTIPS === */
.tooltip {
    @apply absolute z-50 text-sm shadow-lg;
    background: var(--bg-modal);
    color: var(--text-primary);
    border: 1px solid var(--border-primary);
    backdrop-filter: var(--glass-blur);
    border-radius: 12px !important;
    padding: 0.75rem 1rem;
    margin: 0.25rem;
}

/* === BADGES & STATUS === */
.badge {
    @apply inline-flex items-center text-xs font-medium;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: 16px !important;
    padding: 0.5rem 0.75rem;
    margin: 0.25rem;
}

.badge-primary {
    background: var(--mb-primary);
    color: var(--mb-white);
}

.badge-success {
    background: var(--text-success);
    color: var(--mb-white);
}

.badge-warning {
    background: var(--text-warning);
    color: var(--mb-white);
}

.badge-error {
    background: var(--text-error);
    color: var(--mb-white);
}

/* === LOADING STATES === */
.loading {
    @apply animate-pulse;
    background: var(--bg-tertiary);
}

.spinner {
    @apply animate-spin rounded-full;
    border: 2px solid var(--border-primary);
    border-top-color: var(--text-accent);
}

/* === RESPONSIVE UTILITIES === */
@media (max-width: 768px) {
    .modal {
        margin: 1rem;
        max-width: calc(100% - 2rem);
        border-radius: 16px !important;
    }
    
    .card {
        border-radius: 16px !important;
        margin: 0.5rem;
        padding: 1rem;
    }
    
    .btn {
        @apply text-xs;
        padding: 0.5rem 1rem;
        margin: 0.125rem;
    }
    
    .form-input {
        padding: 0.75rem 1rem;
        margin: 0.25rem 0;
    }
    
    .nav-item {
        padding: 0.5rem 0.75rem;
        margin: 0.125rem;
    }
}

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

/* === HIGH CONTRAST MODE === */
@media (prefers-contrast: high) {
    :root {
        --border-primary: #000000;
        --text-primary: #000000;
    }
    
    .dark {
        --border-primary: #ffffff;
        --text-primary: #ffffff;
    }
}

/* === PRINT STYLES === */
@media print {
    .modal-overlay,
    .tooltip,
    .btn {
        display: none !important;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #000000;
    }
}

/* === LEGACY COMPATIBILITY === */
.glass-modal {
    @extend .modal;
    @extend .glass-card;
}

.mb-dashboard-card {
    @extend .card;
}

.btn-professional {
    @extend .btn-primary;
}

.input-professional {
    @extend .form-input;
}

/* === CSS CUSTOM PROPERTIES FALLBACKS === */
.no-css-vars .btn-primary {
    background: #0073ce;
    color: #ffffff;
}

.no-css-vars .dark .btn-primary {
    background: #ffffff;
    color: #000000;
}

/* === OPTIMIZED THEME TRANSITION === */
html {
    transition: background-color 0.3s ease;
}

body {
    transition: color 0.3s ease, background-color 0.3s ease;
}

/* === ENHANCED DARK MODE CONTRAST === */
.dark .btn-primary {
    background: var(--gradient-button);
    color: var(--text-on-primary);
    box-shadow: 0 4px 14px 0 rgba(255, 255, 255, 0.1);
}

.dark .btn-primary:hover {
    background: #f5f5f5;
    box-shadow: 0 6px 20px 0 rgba(255, 255, 255, 0.15);
}

.dark .card {
    border: 1px solid var(--border-primary);
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.8), 0 0 0 1px rgba(255, 255, 255, 0.05);
}

.dark .form-input {
    border: 1px solid var(--border-primary);
    background: var(--bg-card);
}

.dark .form-input:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.1);
}

.dark .alert-info {
    background: rgba(0, 115, 206, 0.15);
    border-color: var(--mb-primary);
    color: #60a5fa;
}

.dark .alert-success {
    background: rgba(34, 197, 94, 0.15);
    border-color: var(--text-success);
    color: #4ade80;
}

.dark .alert-warning {
    background: rgba(251, 191, 36, 0.15);
    border-color: var(--text-warning);
    color: #fbbf24;
}

.dark .alert-error {
    background: rgba(248, 113, 113, 0.15);
    border-color: var(--text-error);
    color: #f87171;
}

/* === UTILITY CLASSES === */
.theme-transition {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.focus-visible:focus {
    outline: 2px solid var(--border-focus);
    outline-offset: 2px;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}