/* MaterialsCodeGraph Frontend Styles */
/* Lovable-inspired layout with debug sidebar on right (full height) */

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

:root {
    /* Color palette - minimalist grayscale with blue accents */
    --color-primary: #2563eb;
    --color-primary-hover: #1d4ed8;
    --color-background: #ffffff;
    --color-surface: #f9fafb;
    --color-border: #e5e7eb;
    --color-text: #111827;
    --color-text-secondary: #6b7280;
    --color-success: #10b981;
    --color-error: #ef4444;

    /* Debug console colors */
    --color-debug-bg: #1e1e1e;
    --color-debug-text: #d4d4d4;
    --color-debug-border: #2d2d2d;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;

    /* Border radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;

    /* Shadows */
    --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);

    /* Layout dimensions */
    --bottom-panel-height: 450px;
}

html, body {
    height: 100%;
    overflow: hidden;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    color: var(--color-text);
    background: var(--color-surface);
    line-height: 1.6;
}

/* App Layout - Chat+Upload (42%) + Viewer+Artifacts (42%) + Debug (16%) */
.app-layout {
    display: grid;
    grid-template-columns: 1fr 1fr 0.4fr;
    height: 100vh;
    overflow: hidden;
}

/* Viewer Column (Middle) - API Keys + Viewer + Artifacts */
.viewer-column {
    display: grid;
    grid-template-rows: auto 1fr 400px;
    background: var(--color-background);
    border-left: 1px solid var(--color-border);
    overflow: hidden;
}

.viewer-column .viewer-panel {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Debug Column (Right) - Full Height */
.debug-column {
    display: flex;
    flex-direction: column;
    background: var(--color-debug-bg);
    border-left: 1px solid var(--color-border);
    overflow: hidden;
}

.debug-column .panel-header {
    background: var(--color-debug-bg);
    border-bottom: 1px solid var(--color-debug-border);
}

.debug-column .panel-header h2 {
    color: var(--color-debug-text);
}

.debug-console {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-sm);
    background: var(--color-debug-bg);
    color: var(--color-debug-text);
    font-family: 'Monaco', 'Menlo', 'Consolas', monospace;
    font-size: 0.75rem;
    line-height: 1.3;
}

.debug-message {
    margin-bottom: 0;
    padding: 2px 0;
    border-bottom: none;
}

.debug-time {
    color: #858585;
    margin-right: var(--spacing-sm);
}

.debug-content {
    color: var(--color-debug-text);
}

.debug-message.info .debug-content {
    color: #4fc3f7;
}

.debug-message.success .debug-content {
    color: #81c784;
}

.debug-message.warning .debug-content {
    color: #ffb74d;
}

.debug-message.error .debug-content {
    color: #e57373;
}

.debug-message.api .debug-content {
    color: #ba68c8;
}

/* Main Content Area */
.main-content {
    display: grid;
    grid-template-rows: auto 1fr;
    overflow: hidden;
}

.chat-upload-container {
    display: grid;
    grid-template-rows: 1fr 400px;
    overflow: hidden;
}

/* Upload Section (under chat) */
.upload-section {
    display: flex;
    flex-direction: column;
    border-top: 1px solid var(--color-border);
    background: var(--color-background);
    overflow: hidden;
    min-height: 0;
}

.upload-section .panel-header {
    flex-shrink: 0;
}

.upload-container {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md);
    min-height: 0;
    display: flex;
}

.upload-section .upload-area {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s;
}

.upload-section .upload-area:hover {
    border-color: var(--color-primary);
    background: var(--color-surface);
}

/* Header */
.header {
    padding: var(--spacing-lg) var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
    background: var(--color-background);
    min-height: 120px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
}

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

.logo-icon {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
}

.header-text {
    flex: 1;
}

.header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    color: var(--color-text);
    margin: 0;
}

.subtitle {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

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

.btn-primary {
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 4px 6px rgba(102, 126, 234, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(102, 126, 234, 0.3);
}

.btn-primary:active {
    transform: translateY(0);
}

/* API Keys Section (in middle column above viewer) */
.api-keys-section {
    display: flex;
    flex-direction: column;
    background: var(--color-background);
    border-bottom: 1px solid var(--color-border);
    height: 120px;
}

.api-keys-content {
    padding: var(--spacing-sm) var(--spacing-md);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    flex: 1;
}

.api-key-group {
    display: flex;
    flex-direction: column;
}

.api-key-group label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.help-link {
    font-size: 0.7rem;
    font-weight: 400;
    color: var(--color-primary);
    text-decoration: none;
    margin-left: auto;
}

.help-link:hover {
    text-decoration: underline;
}

.api-key-input-wrapper {
    display: flex;
    gap: var(--spacing-xs);
    align-items: center;
}

.api-key-input {
    flex: 1;
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-family: monospace;
    background: var(--color-surface);
    transition: all 0.2s;
}

.api-key-input:focus {
    outline: none;
    border-color: var(--color-primary);
    background: var(--color-background);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.api-key-input.has-value {
    color: var(--color-success);
    font-weight: 500;
}

.btn-confirm-key {
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    min-width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.btn-confirm-key:active {
    transform: scale(0.95);
}

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


/* Panel Common Styles */
.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
    background: var(--color-background);
    flex-shrink: 0;
    min-height: 50px;
    height: 50px;
}

.panel-header h2 {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-secondary);
}

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

/* Chat Panel */
.chat-panel {
    display: flex;
    flex-direction: column;
    background: var(--color-background);
    border-right: 1px solid var(--color-border);
    overflow: hidden;
}

.chat-container {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md);
    background: var(--color-surface);
}

.chat-message {
    margin-bottom: var(--spacing-md);
    display: flex;
    animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.message-content {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    max-width: 80%;
    line-height: 1.5;
    font-size: 0.875rem;
    white-space: pre-line; /* Preserve newlines from \n characters */
}

/* Code blocks in messages */
.message-content .code-block {
    background: #f5f5f5;
    border: 1px solid #e0e0e0;
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm);
    margin: var(--spacing-xs) 0;
    overflow-x: auto;
    font-family: 'Monaco', 'Menlo', 'Consolas', monospace;
    font-size: 0.8rem;
    line-height: 1.4;
    white-space: pre;
}

.message-content .code-block code {
    background: none;
    padding: 0;
    color: #333;
}

/* Inline code */
.message-content code {
    background: #f5f5f5;
    border: 1px solid #e0e0e0;
    border-radius: 3px;
    padding: 2px 6px;
    font-family: 'Monaco', 'Menlo', 'Consolas', monospace;
    font-size: 0.85em;
    color: #d63384;
}

/* Bold and italic */
.message-content strong {
    font-weight: 600;
    color: var(--color-text);
}

.message-content em {
    font-style: italic;
}

.chat-message.user .message-content {
    background: var(--color-primary);
    color: white;
    margin-left: auto;
    border-bottom-right-radius: var(--radius-sm);
}

.chat-message.assistant .message-content {
    background: white;
    border: 1px solid var(--color-border);
    border-bottom-left-radius: var(--radius-sm);
}

.chat-input-form {
    display: flex;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    background: var(--color-background);
    border-top: 1px solid var(--color-border);
    flex-shrink: 0;
}

.chat-input-form input {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--color-success);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    transition: all 0.2s;
}

.chat-input-form input:focus {
    outline: none;
    border-color: var(--color-success);
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.2);
}

.chat-input-form button {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--color-success);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
    font-size: 0.875rem;
}

.chat-input-form button:hover {
    background: #16a34a;
}

/* Status Indicator */
.status-indicator {
    color: var(--color-success);
    font-size: 1rem;
    line-height: 1;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Viewer Panel */
.viewer-panel {
    display: flex;
    flex-direction: column;
    background: var(--color-background);
    overflow: hidden;
}

.viewer-container {
    flex: 1;
    background: var(--color-surface);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: auto;
    padding: var(--spacing-md);
}

.viewer-placeholder {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    text-align: center;
}

.viewer-container img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
}

/* Bottom Panels - Files and Plans */
.bottom-panels {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    max-height: 500px;
    overflow: hidden;
    border-top: 1px solid var(--color-border);
}

.files-panel,
.plans-panel {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--color-background);
    border-top: 1px solid var(--color-border);
    min-height: 0;
}

.files-list {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-sm) var(--spacing-md);
}

/* Upload Area dragover state */
.upload-section .upload-area.dragover {
    border-color: var(--color-primary);
    background: rgba(37, 99, 235, 0.05);
}

.upload-prompt {
    color: var(--color-text-secondary);
    pointer-events: none;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.upload-prompt svg {
    margin: 0 auto var(--spacing-xs);
    color: var(--color-text-secondary);
}

.upload-prompt p {
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    font-size: 0.875rem;
}

/* Upload Spinner */
.upload-spinner {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-xl);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--color-border);
    border-top: 4px solid var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.upload-spinner p {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

/* Upload Success */
.upload-success {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    color: var(--color-success);
}

.upload-success p {
    color: var(--color-text);
    font-size: 0.875rem;
    text-align: center;
}

.file-types {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
}

/* File and Plan Items */
.file-item,
.plan-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--color-surface);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-xs);
    border: 1px solid var(--color-border);
    transition: all 0.2s;
}

.file-item:hover,
.plan-item:hover {
    background: white;
    border-color: var(--color-primary);
}

.file-info,
.plan-info {
    flex: 1;
}

.plan-info.clickable {
    cursor: pointer;
    transition: background-color 0.15s ease;
    padding: 4px;
    margin: -4px;
    border-radius: 4px;
}

.plan-info.clickable:hover {
    background-color: var(--color-border);
}

.file-name,
.plan-name {
    font-weight: 500;
    font-size: 0.75rem;
    margin-bottom: 0.25rem;
}

.file-meta,
.plan-meta {
    font-size: 0.7rem;
    color: var(--color-text-secondary);
}

.file-actions,
.plan-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.btn-icon {
    padding: var(--spacing-xs);
    background: none;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s;
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

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

.debug-column .btn-icon {
    border-color: var(--color-debug-border);
}

.debug-column .btn-icon:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

/* Empty States */
.empty-state {
    padding: var(--spacing-lg);
    text-align: center;
    color: var(--color-text-secondary);
    font-size: 0.75rem;
}

/* Loading Spinner */
.loading {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Thinking Indicator */
.thinking-indicator {
    display: inline-block;
    color: var(--color-text-secondary);
    animation: thinking 1.4s ease-in-out infinite;
}

@keyframes thinking {
    0%, 80%, 100% { opacity: 0.3; }
    40% { opacity: 1; }
}

/* Responsive Design */
@media (max-width: 1400px) {
    .app-layout {
        grid-template-columns: 1fr 1fr 0.4fr;
    }
}

@media (max-width: 1024px) {
    .app-layout {
        grid-template-columns: 1fr;
    }

    .viewer-column,
    .debug-column {
        display: none;
    }
}

@media (max-width: 768px) {
    .app-layout {
        grid-template-columns: 1fr;
    }

    .viewer-column,
    .debug-column {
        display: none;
    }

    .header h1 {
        font-size: 1.25rem;
    }

    .logo-icon {
        width: 32px;
        height: 32px;
    }
}