/* Apple-inspiriertes Design System */
:root {
    --color-primary: #007AFF;
    --color-primary-hover: #0056b3;
    --color-secondary: #5856D6;
    --color-success: #34C759;
    --color-danger: #FF3B30;
    --color-warning: #FF9500;
    
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f2f2f7;
    --color-bg-tertiary: #f9f9f9;
    --color-bg-elevated: #ffffff;
    
    --color-text-primary: #000000;
    --color-text-secondary: #3c3c43;
    --color-text-tertiary: #8e8e93;
    
    --color-border-primary: #d1d1d6;
    --color-border-secondary: #e5e5ea;
    
    --radius-small: 8px;
    --radius-medium: 12px;
    --radius-large: 16px;
    
    --shadow-small: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 4px 16px rgba(0, 0, 0, 0.1);
    --shadow-large: 0 8px 32px rgba(0, 0, 0, 0.15);
    
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* Dark Mode */
@media (prefers-color-scheme: dark) {
    :root {
        --color-bg-primary: #000000;
        --color-bg-secondary: #1c1c1e;
        --color-bg-tertiary: #2c2c2e;
        --color-bg-elevated: #1c1c1e;
        
        --color-text-primary: #ffffff;
        --color-text-secondary: #ebebf5;
        --color-text-tertiary: #8e8e93;
        
        --color-border-primary: #38383a;
        --color-border-secondary: #2c2c2e;
    }
}

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

body {
    font-family: var(--font-family);
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Header */
.header {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border-secondary);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-text-primary);
}

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

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    min-height: calc(100vh - 80px);
}

/* Sidebar */
.sidebar {
    background: var(--color-bg-elevated);
    border-radius: var(--radius-large);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-medium);
    height: fit-content;
    position: sticky;
    top: calc(80px + var(--spacing-lg));
}

.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.sidebar-header h2 {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text-primary);
}

/* Search & Filters */
.search-filters {
    margin-bottom: var(--spacing-lg);
}

.search-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-small);
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
    font-size: 14px;
    margin-bottom: var(--spacing-sm);
    transition: all 0.2s ease;
}

.search-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.1);
}

.filter-controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
}

.filter-select {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-small);
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
    font-size: 12px;
}

/* Prompt List */
.prompt-list {
    max-height: 60vh;
    overflow-y: auto;
}

.prompt-item {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-secondary);
    border-radius: var(--radius-medium);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    cursor: grab;
    transition: all 0.2s ease;
    user-select: none;
}

.prompt-item:hover {
    background: var(--color-bg-tertiary);
    border-color: var(--color-primary);
    transform: translateY(-1px);
    box-shadow: var(--shadow-small);
}

.prompt-item:active {
    cursor: grabbing;
}

.prompt-item.dragging {
    opacity: 0.5;
    transform: rotate(5deg);
}

.prompt-name {
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
}

.prompt-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--color-text-tertiary);
}

.prompt-category {
    background: var(--color-primary);
    color: white;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 10px;
    font-weight: 500;
}

.prompt-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-xs);
}

.prompt-tag {
    background: var(--color-bg-tertiary);
    color: var(--color-text-secondary);
    padding: 1px 4px;
    border-radius: 3px;
    font-size: 9px;
}

/* Chat Area */
.chat-area {
    background: var(--color-bg-elevated);
    border-radius: var(--radius-large);
    box-shadow: var(--shadow-medium);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.chat-history {
    flex: 1;
    padding: var(--spacing-lg);
    overflow-y: auto;
    min-height: 400px;
}

/* Drop Zone */
.drop-zone {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 300px;
    border: 2px dashed var(--color-border-primary);
    border-radius: var(--radius-large);
    margin: var(--spacing-lg);
    transition: all 0.2s ease;
}

.drop-zone.drag-over {
    border-color: var(--color-primary);
    background: rgba(0, 122, 255, 0.05);
}

.drop-zone-content {
    text-align: center;
    color: var(--color-text-tertiary);
}

.drop-zone-content svg {
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.drop-zone-content h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
}

/* Messages */
.message {
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.3s ease;
}

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

.message-role {
    font-weight: 600;
    font-size: 14px;
}

.message-role.user {
    color: var(--color-primary);
}

.message-role.assistant {
    color: var(--color-success);
}

.message-time {
    font-size: 12px;
    color: var(--color-text-tertiary);
}

.message-content {
    background: var(--color-bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--radius-medium);
    white-space: pre-wrap;
    line-height: 1.7;
}

.message.user .message-content {
    background: var(--color-primary);
    color: white;
    margin-left: var(--spacing-xl);
}

.message.assistant .message-content {
    margin-right: var(--spacing-xl);
}

/* Input Area */
.input-area {
    border-top: 1px solid var(--color-border-secondary);
    padding: var(--spacing-lg);
}

.prompt-editor {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-medium);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.editor-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.editor-header h3 {
    font-size: 16px;
    font-weight: 600;
}

.editor-controls {
    display: flex;
    gap: var(--spacing-sm);
}

.prompt-textarea {
    width: 100%;
    min-height: 120px;
    padding: var(--spacing-md);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-small);
    background: var(--color-bg-elevated);
    color: var(--color-text-primary);
    font-family: var(--font-family);
    font-size: 14px;
    resize: vertical;
    margin-bottom: var(--spacing-md);
}

.variable-inputs {
    display: grid;
    gap: var(--spacing-sm);
}

.variable-input-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.variable-input-group label {
    min-width: 120px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-secondary);
}

.variable-input-group input {
    flex: 1;
    padding: var(--spacing-sm);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-small);
    background: var(--color-bg-elevated);
    color: var(--color-text-primary);
}

.chat-input {
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-end;
}

.message-input {
    flex: 1;
    min-height: 44px;
    max-height: 120px;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-large);
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
    font-family: var(--font-family);
    font-size: 14px;
    resize: none;
    overflow-y: auto;
}

.message-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.1);
}

/* Buttons */
.btn-primary, .btn-secondary, .btn-danger {
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--radius-small);
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

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

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

.btn-secondary {
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border-primary);
}

.btn-secondary:hover {
    background: var(--color-bg-tertiary);
}

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

.btn-danger:hover {
    background: #e6342a;
}

.add-btn, .icon-btn, .send-btn {
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 50%;
    background: var(--color-primary);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.add-btn:hover, .icon-btn:hover, .send-btn:hover {
    background: var(--color-primary-hover);
    transform: scale(1.05);
}

.send-btn {
    min-width: 44px;
    min-height: 44px;
}

.model-select {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-small);
    background: var(--color-bg-elevated);
    color: var(--color-text-primary);
    font-size: 14px;
    min-width: 200px;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    z-index: 1000;
    animation: fadeIn 0.2s ease;
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--color-bg-elevated);
    border-radius: var(--radius-large);
    box-shadow: var(--shadow-large);
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideInUp 0.3s ease;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border-secondary);
}

.modal-header h2 {
    font-size: 18px;
    font-weight: 600;
}

.modal-close {
    width: 32px;
    height: 32px;
    border: none;
    background: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--color-text-tertiary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: var(--color-bg-secondary);
}

.modal-body {
    padding: var(--spacing-lg);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    border-top: 1px solid var(--color-border-secondary);
}

.setting-group {
    margin-bottom: var(--spacing-lg);
}

.setting-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--color-text-secondary);
}

.setting-group input, .setting-group textarea, .setting-group select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-small);
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
    font-family: var(--font-family);
    font-size: 14px;
}

.setting-group textarea {
    min-height: 80px;
    resize: vertical;
}

.setting-group input[type="range"] {
    padding: 0;
}

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--color-primary);
    border-top: 2px solid transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .container {
        grid-template-columns: 280px 1fr;
        gap: var(--spacing-md);
        padding: var(--spacing-md);
    }
    
    .sidebar {
        position: static;
    }
}

@media (max-width: 768px) {
    .container {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
        padding: var(--spacing-sm);
    }
    
    .sidebar {
        order: 2;
        position: static;
    }
    
    .chat-area {
        order: 1;
        min-height: 70vh;
    }
    
    .header-content {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .header-title {
        font-size: 20px;
    }
    
    .modal-content {
        width: 95%;
        margin: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .header-controls {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .model-select {
        min-width: auto;
        width: 100%;
    }
    
    .filter-controls {
        grid-template-columns: 1fr;
    }
    
    .editor-controls {
        flex-direction: column;
    }
    
    .modal-footer {
        flex-direction: column;
    }
}

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

::-webkit-scrollbar-track {
    background: var(--color-bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--color-border-primary);
    border-radius: 4px;
}

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

/* Focus States */
*:focus {
    outline: none;
}
/* Chat specific styles */
.chat-messages {
    flex: 1;
    padding: var(--spacing-lg);
    overflow-y: auto;
    min-height: 400px;
    position: relative;
}

.chat-messages.drag-over {
    background: rgba(0, 122, 255, 0.05);
    border: 2px dashed var(--color-primary);
    border-radius: var(--radius-medium);
}

.welcome-message {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    min-height: 300px;
}

.welcome-content {
    text-align: center;
    color: var(--color-text-tertiary);
}

.welcome-content h3 {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.welcome-content p {
    margin-bottom: var(--spacing-sm);
}

.prompt-editor {
    border-top: 1px solid var(--color-border-secondary);
    padding: var(--spacing-lg);
    background: var(--color-bg-secondary);
}

.variable-inputs h4 {
    margin: var(--spacing-md) 0 var(--spacing-sm) 0;
    color: var(--color-text-secondary);
    font-size: 14px;
}

.no-results {
    padding: var(--spacing-lg);
    text-align: center;
    color: var(--color-text-tertiary);
    font-style: italic;
}
*:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}