dataflow-rs 2.1.5

/**
 * Dataflow Playground - Modern UI Styles
 * Clean, professional design with emerald green accent
 */

/* ========================================
   CSS Variables for theming
   ======================================== */

:root {
    --playground-primary: #10b981;
    --playground-primary-hover: #059669;
    --playground-success: #10b981;
    --playground-success-bg: #ecfdf5;
    --playground-success-text: #065f46;
    --playground-error: #ef4444;
    --playground-error-bg: #fef2f2;
    --playground-error-text: #991b1b;
    --playground-border: #e5e7eb;
    --playground-bg: #ffffff;
    --playground-bg-secondary: #f9fafb;
    --playground-bg-code: #f8fafc;
    --playground-text: #1f2937;
    --playground-text-muted: #6b7280;
    --playground-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --playground-shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --playground-radius: 12px;
    --playground-radius-sm: 8px;
    --playground-font-mono: 'JetBrains Mono', 'Fira Code', 'Source Code Pro', Consolas, monospace;
    --playground-gradient: linear-gradient(135deg, #10b981 0%, #14b8a6 100%);

    /* JSON Syntax highlighting colors */
    --json-key: #7c3aed;
    --json-string: #059669;
    --json-number: #d97706;
    --json-boolean: #dc2626;
    --json-null: #6b7280;
    --json-bracket: #374151;
}

/* Dark theme variables */
.navy, .coal, .ayu {
    --playground-primary: #34d399;
    --playground-primary-hover: #6ee7b7;
    --playground-success: #34d399;
    --playground-success-bg: #064e3b;
    --playground-success-text: #6ee7b7;
    --playground-error: #f87171;
    --playground-error-bg: #450a0a;
    --playground-error-text: #fca5a5;
    --playground-border: #374151;
    --playground-bg: #1f2937;
    --playground-bg-secondary: #111827;
    --playground-bg-code: #0f172a;
    --playground-text: #f3f4f6;
    --playground-text-muted: #9ca3af;
    --playground-gradient: linear-gradient(135deg, #10b981 0%, #14b8a6 100%);

    /* JSON Syntax highlighting colors - dark */
    --json-key: #a78bfa;
    --json-string: #34d399;
    --json-number: #fbbf24;
    --json-boolean: #f87171;
    --json-null: #9ca3af;
    --json-bracket: #d1d5db;
}

/* ========================================
   Loading and Error States
   ======================================== */

.playground-loading {
    padding: 1.5rem;
    text-align: center;
    color: var(--playground-text-muted);
    font-size: 0.95rem;
    background: var(--playground-bg-secondary);
    border-radius: var(--playground-radius);
    border: 1px solid var(--playground-border);
}

.playground-loading::before {
    content: '';
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2px solid var(--playground-border);
    border-top-color: var(--playground-primary);
    border-radius: 50%;
    margin-right: 0.75rem;
    vertical-align: middle;
    animation: spin 1s linear infinite;
}

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

.playground-error {
    padding: 1.25rem;
    border-radius: var(--playground-radius);
    text-align: center;
    background: var(--playground-error-bg);
    color: var(--playground-error);
    border: 1px solid var(--playground-error);
    font-size: 0.95rem;
}

/* ========================================
   Inline Widget Styles
   ======================================== */

.playground-widget {
    margin: 1.25rem 0;
    border-radius: var(--playground-radius);
    overflow: hidden;
    background: var(--playground-bg);
    border: 1px solid var(--playground-border);
    box-shadow: var(--playground-shadow);
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.playground-widget:hover {
    box-shadow: var(--playground-shadow-lg);
}

.playground-widget-inner {
    display: flex;
    flex-direction: column;
}

.playground-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.6rem 1rem;
    background: var(--playground-gradient);
    border-bottom: none;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.playground-title {
    font-weight: 600;
    font-size: 0.8rem;
    color: #ffffff;
    text-transform: uppercase;
    letter-spacing: 0.75px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.playground-title::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    background: #22c55e;
    border-radius: 50%;
    box-shadow: 0 0 8px rgba(34, 197, 94, 0.6);
}

.playground-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    flex-wrap: wrap;
}

.playground-btn {
    padding: 0.35rem 0.85rem;
    border: none;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.playground-reset {
    background: rgba(255, 255, 255, 0.2);
    color: #ffffff;
    backdrop-filter: blur(4px);
}

.playground-reset:hover {
    background: rgba(255, 255, 255, 0.3);
}

.playground-run {
    background: #ffffff;
    color: var(--playground-primary);
    font-weight: 600;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.playground-run:hover {
    background: #f8fafc;
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.playground-run::before {
    content: '▶';
    font-size: 0.6rem;
}

.playground-body {
    padding: 0.875rem;
    background: var(--playground-bg-secondary);
}

/* Two-column layout for inputs */
.playground-inputs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.875rem;
    margin-bottom: 0.875rem;
}

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

.playground-editor-section {
    display: flex;
    flex-direction: column;
}

.playground-editor-section label,
.playground-output label {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--playground-text-muted);
    margin-bottom: 0.4rem;
    text-transform: uppercase;
    letter-spacing: 0.75px;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.playground-editor-section label::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: linear-gradient(135deg, #f59e0b, #f97316);
}

/* Editor container for syntax highlighting */
.playground-editor-container {
    position: relative;
    min-height: 100px;
    border: 2px solid var(--playground-border);
    border-radius: var(--playground-radius-sm);
    background: var(--playground-bg);
    overflow: hidden;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
    flex: 1;
}

.playground-editor-container:focus-within {
    border-color: var(--playground-primary);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

/* Highlighted background layer */
.playground-highlight {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 0.75rem;
    font-family: var(--playground-font-mono);
    font-size: 0.85rem;
    line-height: 1.5;
    white-space: pre-wrap;
    word-wrap: break-word;
    overflow: auto;
    pointer-events: none;
    z-index: 0;
}

/* Textarea layer */
.playground-workflows,
.playground-payload {
    width: 100%;
    min-height: 100px;
    padding: 0.75rem;
    border: none;
    border-radius: 0;
    font-family: var(--playground-font-mono);
    font-size: 0.85rem;
    line-height: 1.5;
    resize: vertical;
    background: transparent;
    color: transparent;
    position: relative;
    z-index: 1;
    caret-color: var(--playground-text);
}

.playground-workflows:focus,
.playground-payload:focus {
    outline: none;
}

.playground-output {
    display: flex;
    flex-direction: column;
}

.playground-output label::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: linear-gradient(135deg, #10b981, #14b8a6);
}

.playground-result {
    min-height: 80px;
    padding: 0.75rem;
    border-radius: var(--playground-radius-sm);
    font-family: var(--playground-font-mono);
    font-size: 0.85rem;
    line-height: 1.5;
    background: var(--playground-bg);
    color: var(--playground-text-muted);
    white-space: pre-wrap;
    word-break: break-word;
    border: 2px solid var(--playground-border);
    transition: all 0.2s ease;
    max-height: 400px;
    overflow: auto;
}

.playground-result.loading {
    color: var(--playground-text-muted);
    font-style: italic;
}

.playground-result.success {
    background: var(--playground-success-bg);
    border-color: var(--playground-success);
    color: var(--playground-success-text);
}

.playground-result.error {
    background: var(--playground-error-bg);
    border-color: var(--playground-error);
    color: var(--playground-error-text);
}

/* ========================================
   Result Sections (Context, Errors, Audit Trail)
   ======================================== */

.result-section {
    margin-bottom: 0.75rem;
}

.result-section:last-child {
    margin-bottom: 0;
}

.result-section-header {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--playground-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.35rem;
    padding-bottom: 0.25rem;
    border-bottom: 1px solid var(--playground-border);
}

.result-json {
    margin: 0;
    padding: 0;
    font-family: var(--playground-font-mono);
    font-size: 0.85rem;
    line-height: 1.5;
    white-space: pre-wrap;
    word-break: break-word;
}

.result-errors .result-section-header {
    color: var(--playground-error);
}

.result-audit .result-section-header {
    color: var(--playground-primary);
}

/* ========================================
   JSON Syntax Highlighting
   ======================================== */

.json-key { color: var(--json-key); font-weight: 500; }
.json-string { color: var(--json-string); }
.json-number { color: var(--json-number); }
.json-boolean { color: var(--json-boolean); font-weight: 500; }
.json-null { color: var(--json-null); font-style: italic; }
.json-bracket { color: var(--json-bracket); }

/* ========================================
   Full Playground Page Styles
   ======================================== */

.full-playground-container {
    border-radius: var(--playground-radius);
    overflow: hidden;
    background: var(--playground-bg);
    border: 1px solid var(--playground-border);
    box-shadow: var(--playground-shadow-lg);
}

.full-playground-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background: var(--playground-gradient);
    flex-wrap: wrap;
    gap: 0.5rem;
}

.full-playground-title {
    font-weight: 600;
    font-size: 0.85rem;
    color: #ffffff;
    text-transform: uppercase;
    letter-spacing: 0.75px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.full-playground-title::before {
    content: '';
    display: inline-block;
    width: 10px;
    height: 10px;
    background: #22c55e;
    border-radius: 50%;
    box-shadow: 0 0 8px rgba(34, 197, 94, 0.6);
}

.full-playground-controls {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    flex-wrap: wrap;
}

.playground-examples {
    padding: 0.4rem 0.75rem;
    border: none;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.2);
    color: #ffffff;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    backdrop-filter: blur(4px);
    transition: background 0.15s ease;
}

.playground-examples:hover {
    background: rgba(255, 255, 255, 0.3);
}

.playground-examples option {
    background: var(--playground-bg);
    color: var(--playground-text);
}

.full-playground-body {
    padding: 1rem;
    background: var(--playground-bg-secondary);
}

/* Two-column layout for full playground inputs */
.full-playground-inputs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

@media (max-width: 900px) {
    .full-playground-inputs {
        grid-template-columns: 1fr;
    }
}

.full-playground-editor-section {
    display: flex;
    flex-direction: column;
}

.full-playground-editor-section label {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--playground-text-muted);
    margin-bottom: 0.4rem;
    text-transform: uppercase;
    letter-spacing: 0.75px;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.full-playground-editor-section label::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: linear-gradient(135deg, #f59e0b, #f97316);
}

/* Full playground editor container */
.full-playground-editor-container {
    position: relative;
    min-height: 200px;
    border: 2px solid var(--playground-border);
    border-radius: var(--playground-radius-sm);
    background: var(--playground-bg);
    overflow: hidden;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
    flex: 1;
}

.full-playground-editor-container:focus-within {
    border-color: var(--playground-primary);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.full-playground-highlight {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 0.875rem;
    font-family: var(--playground-font-mono);
    font-size: 0.9rem;
    line-height: 1.6;
    white-space: pre-wrap;
    word-wrap: break-word;
    overflow: auto;
    pointer-events: none;
    z-index: 0;
}

.full-playground-workflows,
.full-playground-payload {
    width: 100%;
    min-height: 200px;
    padding: 0.875rem;
    border: none;
    font-family: var(--playground-font-mono);
    font-size: 0.9rem;
    line-height: 1.6;
    resize: vertical;
    background: transparent;
    color: transparent;
    position: relative;
    z-index: 1;
    caret-color: var(--playground-text);
}

.full-playground-workflows:focus,
.full-playground-payload:focus {
    outline: none;
}

.full-playground-output {
    display: flex;
    flex-direction: column;
}

.full-playground-output label {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--playground-text-muted);
    margin-bottom: 0.4rem;
    text-transform: uppercase;
    letter-spacing: 0.75px;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.full-playground-output label::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: linear-gradient(135deg, #10b981, #14b8a6);
}

.full-playground-result {
    min-height: 150px;
    max-height: 500px;
    padding: 0.875rem;
    border-radius: var(--playground-radius-sm);
    font-family: var(--playground-font-mono);
    font-size: 0.9rem;
    line-height: 1.6;
    background: var(--playground-bg);
    color: var(--playground-text-muted);
    white-space: pre-wrap;
    word-break: break-word;
    border: 2px solid var(--playground-border);
    transition: all 0.2s ease;
    overflow: auto;
}

.full-playground-result.loading {
    color: var(--playground-text-muted);
    font-style: italic;
}

.full-playground-result.success {
    background: var(--playground-success-bg);
    border-color: var(--playground-success);
    color: var(--playground-success-text);
}

.full-playground-result.error {
    background: var(--playground-error-bg);
    border-color: var(--playground-error);
    color: var(--playground-error-text);
}

/* ========================================
   Animation for result
   ======================================== */

@keyframes resultPulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.005); }
    100% { transform: scale(1); }
}

.playground-result.success,
.playground-result.error,
.full-playground-result.success,
.full-playground-result.error {
    animation: resultPulse 0.15s ease;
}

/* ========================================
   Scrollbar styling
   ======================================== */

.playground-workflows::-webkit-scrollbar,
.playground-payload::-webkit-scrollbar,
.playground-result::-webkit-scrollbar,
.playground-highlight::-webkit-scrollbar,
.full-playground-workflows::-webkit-scrollbar,
.full-playground-payload::-webkit-scrollbar,
.full-playground-result::-webkit-scrollbar,
.full-playground-highlight::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

.playground-workflows::-webkit-scrollbar-track,
.playground-payload::-webkit-scrollbar-track,
.playground-result::-webkit-scrollbar-track,
.playground-highlight::-webkit-scrollbar-track,
.full-playground-workflows::-webkit-scrollbar-track,
.full-playground-payload::-webkit-scrollbar-track,
.full-playground-result::-webkit-scrollbar-track,
.full-playground-highlight::-webkit-scrollbar-track {
    background: transparent;
}

.playground-workflows::-webkit-scrollbar-thumb,
.playground-payload::-webkit-scrollbar-thumb,
.playground-result::-webkit-scrollbar-thumb,
.playground-highlight::-webkit-scrollbar-thumb,
.full-playground-workflows::-webkit-scrollbar-thumb,
.full-playground-payload::-webkit-scrollbar-thumb,
.full-playground-result::-webkit-scrollbar-thumb,
.full-playground-highlight::-webkit-scrollbar-thumb {
    background: var(--playground-border);
    border-radius: 4px;
}

.playground-workflows::-webkit-scrollbar-thumb:hover,
.playground-payload::-webkit-scrollbar-thumb:hover,
.playground-result::-webkit-scrollbar-thumb:hover,
.playground-highlight::-webkit-scrollbar-thumb:hover,
.full-playground-workflows::-webkit-scrollbar-thumb:hover,
.full-playground-payload::-webkit-scrollbar-thumb:hover,
.full-playground-result::-webkit-scrollbar-thumb:hover,
.full-playground-highlight::-webkit-scrollbar-thumb:hover {
    background: var(--playground-text-muted);
}

/* ========================================
   Responsive adjustments
   ======================================== */

@media (max-width: 600px) {
    .playground-header,
    .full-playground-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .playground-actions,
    .full-playground-controls {
        width: 100%;
        justify-content: flex-end;
    }
}