/**
 * Unified Tool Styles
 * 
 * Shared styles for all developer tools.
 * Uses theme CSS variables for consistency.
 */

/* ============================================
   Tool Page Layout
   ============================================ */
.tool-page {
    min-height: 70vh;
    padding: var(--space-xl) 0;
}

.tool-header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.tool-header h1 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--space-sm);
}

.tool-header .subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

/* ============================================
   Tool Workspace (Main Editing Area)
   ============================================ */
.tool-workspace {
    display: flex;
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

@media (max-width: 1024px) {
    .tool-workspace {
        flex-direction: column;
    }
}

/* Editor Panels */
.tool-panel {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm) var(--space-md);
    background: var(--color-bg-tertiary);
    border-bottom: 1px solid var(--color-border);
}

.panel-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-primary);
}

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

.panel-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 350px;
}

.panel-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-xs) var(--space-md);
    background: var(--color-bg-tertiary);
    border-top: 1px solid var(--color-border);
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

/* Center Controls */
.tool-controls {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg) var(--space-md);
    min-width: 200px;
}

@media (max-width: 1024px) {
    .tool-controls {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        padding: var(--space-md);
    }
}

.tool-controls hr {
    width: 100%;
    border: none;
    border-top: 1px solid var(--color-border);
    margin: var(--space-xs) 0;
}

@media (max-width: 1024px) {
    .tool-controls hr {
        display: none;
    }
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    font-size: var(--font-size-sm);
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--color-accent);
    color: #fff;
}

.btn-primary:hover:not(:disabled) {
    background: var(--color-accent-hover);
    transform: translateY(-1px);
}

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

.btn-secondary:hover:not(:disabled) {
    background: var(--color-bg-hover);
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-secondary);
    padding: var(--space-xs) var(--space-sm);
}

.btn-ghost:hover {
    color: var(--color-text-primary);
    background: var(--color-bg-tertiary);
}

.btn-success {
    background: var(--color-success);
    color: #fff;
}

.btn-block {
    width: 100%;
}

@media (max-width: 1024px) {
    .btn-block {
        width: auto;
        min-width: 140px;
    }
}

/* ============================================
   ACE Editor Styling
   ============================================ */
.ace-editor-wrap {
    flex: 1;
    min-height: 300px;
}

.ace_editor {
    width: 100% !important;
    height: 100% !important;
    font-size: 14px !important;
    background: var(--color-bg-secondary) !important;
}

.ace_gutter {
    background: var(--color-bg-tertiary) !important;
    color: var(--color-text-muted) !important;
}

.ace_print-margin {
    display: none !important;
}

/* ============================================
   Textarea Alternative (for simple editors)
   ============================================ */
.tool-textarea {
    flex: 1;
    width: 100%;
    min-height: 300px;
    padding: var(--space-md);
    background: var(--color-bg-secondary);
    border: none;
    color: var(--color-text-primary);
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 14px;
    line-height: 1.6;
    resize: none;
}

.tool-textarea:focus {
    outline: none;
}

.tool-textarea::placeholder {
    color: var(--color-text-muted);
}

/* ============================================
   Status Messages
   ============================================ */
.status-valid {
    color: var(--color-success);
}

.status-error {
    color: var(--color-error);
}

.status-warning {
    color: var(--color-warning);
}

/* ============================================
   Tool Guide Section
   ============================================ */
.tool-guide {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    margin-top: var(--space-2xl);
    overflow: hidden;
}

.guide-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-lg);
    background: var(--color-bg-tertiary);
    cursor: pointer;
    user-select: none;
}

.guide-header:hover {
    background: var(--color-bg-hover);
}

.guide-header h2 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 0;
}

.guide-toggle {
    font-size: var(--font-size-xl);
    color: var(--color-text-secondary);
    transition: transform var(--transition-fast);
}

.guide-header[aria-expanded="true"] .guide-toggle {
    transform: rotate(180deg);
}

.guide-content {
    padding: var(--space-lg) var(--space-xl);
    display: none;
}

.guide-content.show {
    display: block;
}

.guide-content h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-accent);
    margin: var(--space-xl) 0 var(--space-md) 0;
}

.guide-content h3:first-child {
    margin-top: 0;
}

.guide-content p {
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-md);
}

.guide-content ul,
.guide-content ol {
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-md);
    padding-left: var(--space-lg);
}

.guide-content li {
    margin-bottom: var(--space-sm);
}

.guide-content strong {
    color: var(--color-text-primary);
}

.guide-content code {
    background: var(--color-bg-tertiary);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9em;
    color: var(--color-accent);
}

.guide-content a {
    color: var(--color-accent);
    text-decoration: none;
}

.guide-content a:hover {
    text-decoration: underline;
}

/* FAQ Styling */
.faq-item {
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--color-border);
}

.faq-item:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.faq-question {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-sm);
}

.faq-answer {
    color: var(--color-text-secondary);
    line-height: 1.8;
}

/* ============================================
   Responsive Adjustments
   ============================================ */
@media (max-width: 768px) {
    .tool-page {
        padding: var(--space-md) 0;
    }
    
    .tool-header h1 {
        font-size: var(--font-size-2xl);
    }
    
    .panel-body {
        min-height: 250px;
    }
    
    .guide-content {
        padding: var(--space-md);
    }
}

@media (max-width: 480px) {
    .tool-header h1 {
        font-size: var(--font-size-xl);
    }
    
    .tool-header .subtitle {
        font-size: var(--font-size-base);
    }
    
    .btn {
        padding: var(--space-xs) var(--space-sm);
        font-size: var(--font-size-xs);
    }
}

/* ============================================
   Utility Classes
   ============================================ */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.text-center {
    text-align: center;
}

.text-muted {
    color: var(--color-text-muted);
}

.mt-lg {
    margin-top: var(--space-lg);
}

.mb-lg {
    margin-bottom: var(--space-lg);
}