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<!DOCTYPE html> |
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<html lang="en"> |
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<head> |
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<meta charset="UTF-8"> |
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<meta name="viewport" content="width=device-width, initial-scale=1.0"> |
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<title>System Design Game</title> |
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<style> |
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@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;500;700&display=swap'); |
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/* === CSS VARIABLES === */ |
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:root { |
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/* Colors */ |
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--color-bg-body: #161b22; |
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--color-bg-dark: #121212; |
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--color-bg-sidebar: #111; |
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--color-bg-component: #1e1e1e; |
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--color-bg-hover: #2a2a2a; |
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--color-bg-accent: #005f87; |
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--color-bg-tab-active: #1a3d2a; |
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--color-border: #444; |
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--color-border-accent: #00ff88; |
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--color-border-panel: #30363d; |
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--color-text-primary: #ccc; |
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--color-text-muted: #888; |
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--color-text-accent: #00ff88; |
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--color-text-white: #fff; |
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--color-text-dark: #333; |
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--color-button: #238636; |
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--color-button-disabled: #555; |
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--color-connection: #333; |
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--color-connection-selected: #007bff; |
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--color-tooltip-bg: #333; |
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--color-tooltip-text: #fff; |
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/* Sizes */ |
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--radius-small: 4px; |
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--radius-medium: 6px; |
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--radius-large: 8px; |
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--font-family-mono: 'JetBrains Mono', monospace; |
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--font-family-code: 'Fira Code', monospace; |
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--component-padding: 8px; |
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--component-gap: 12px; |
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} |
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/* === RESET === */ |
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* { |
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box-sizing: border-box; |
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} |
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body { |
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margin: 0; |
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font-family: var(--font-family-mono); |
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background-color: var(--color-bg-body); |
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color: var(--color-text-primary); |
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display: flex; |
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flex-direction: row; |
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height: 100vh; |
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} |
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/* === LAYOUT === */ |
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#page-container { |
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display: flex; |
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flex-direction: column; |
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width: 100%; |
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} |
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#sd-header { |
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width: 100%; |
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background: none; |
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padding: 12px 24px; |
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font-size: 24px; |
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font-weight: bold; |
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color: var(--color-text-accent); |
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border-bottom: 1px solid var(--color-text-dark); |
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} |
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#main-content { |
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display: flex; |
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flex-direction: row; |
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height: 100%; |
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background: radial-gradient(circle at 30% 50%, rgba(0, 255, 136, 0.1), transparent 50%), |
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radial-gradient(circle at 70% 80%, rgba(255, 107, 53, 0.1), transparent 50%); |
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} |
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/* === SIDEBAR === */ |
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#sidebar { |
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width: 100%; |
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background-color: var(--color-bg-sidebar); |
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display: flex; |
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flex-wrap: wrap; |
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flex-direction: row; |
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gap: var(--component-gap); |
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} |
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/* === COMPONENT ICONS === */ |
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.component-icon, |
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#arrow-tool { |
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position: relative; |
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padding: var(--component-padding) 12px; |
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background-color: var(--color-bg-component); |
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border: 1px solid var(--color-border); |
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border-radius: var(--radius-medium); |
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text-align: center; |
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cursor: grab; |
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user-select: none; |
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font-size: 16px; |
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color: var(--color-text-primary); |
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transition: background-color 0.1s ease; |
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} |
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.component-icon:hover, |
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#arrow-tool:hover { |
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background-color: var(--color-bg-hover); |
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border-color: var(--color-border-accent); |
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} |
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.component-icon:active, |
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#arrow-tool:active { |
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cursor: grabbing; |
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} |
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#arrow-tool.active { |
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background-color: var(--color-bg-accent); |
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color: var(--color-text-white); |
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border-color: var(--color-button); |
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} |
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/* === TOOLTIP === */ |
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.tooltip { |
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visibility: hidden; |
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opacity: 0; |
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position: absolute; |
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top: 100%; |
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left: 0; |
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z-index: 10; |
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background: var(--color-tooltip-bg); |
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color: var(--color-tooltip-text); |
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padding: 6px 8px; |
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border-radius: var(--radius-small); |
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white-space: nowrap; |
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font-size: 14px; |
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line-height: 1.4; |
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margin-top: 4px; |
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transition: opacity 0.2s; |
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} |
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.component-icon:hover .tooltip { |
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visibility: visible; |
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opacity: 1; |
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z-index: 1000; |
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} |
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.component-icon.dragging .tooltip { |
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display: none; |
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} |
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/* === CANVAS === */ |
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#canvas-wrapper { |
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flex: 1; |
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display: flex; |
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flex-direction: column; |
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border-radius: var(--radius-large); |
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border: 2px solid var(--color-border-panel); |
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overflow: hidden; |
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background: var(--color-bg-dark); |
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margin: 12px 12px 12px 0; |
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padding: 16px; |
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} |
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#canvas-container { |
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flex: 1; |
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position: relative; |
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background: var(--color-bg-dark); |
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height: 100%; |
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margin-top: 16px; |
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} |
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#canvas { |
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width: 100%; |
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height: 90%; |
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background: var(--color-bg-dark); |
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border: 2px dashed var(--color-border-panel); |
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border-radius: var(--radius-large); |
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} |
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.dropped { |
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cursor: move; |
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} |
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.dropped.selected rect { |
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stroke: #00bcd4; |
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stroke-width: 2; |
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} |
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#canvas-toolbar { |
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position: absolute; |
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top: 12px; |
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left: 12px; |
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z-index: 20; |
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display: flex; |
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gap: 8px; |
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background: var(--color-bg-component); |
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border: 1px solid var(--color-border); |
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border-radius: var(--radius-small); |
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padding: 6px; |
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box-shadow: 0 0 8px rgba(0, 0, 0, 0.4); |
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} |
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.toolbar-btn { |
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background: none; |
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border: 1px solid var(--color-border); |
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color: var(--color-text-primary); |
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padding: 6px 10px; |
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border-radius: var(--radius-small); |
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font-size: 14px; |
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cursor: pointer; |
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font-family: var(--font-family-mono); |
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} |
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.toolbar-btn:hover { |
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background-color: var(--color-bg-hover); |
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border-color: var(--color-border-accent); |
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} |
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.toolbar-btn.active { |
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background-color: var(--color-bg-accent); |
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color: var(--color-text-white); |
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border-color: var(--color-button); |
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} |
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/* === PANELS === */ |
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#info-panel { |
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position: absolute; |
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top: 12px; |
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right: 12px; |
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background: var(--color-bg-dark); |
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color: var(--color-text-primary); |
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padding: 1rem; |
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border-radius: var(--radius-large); |
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font-family: monospace; |
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font-size: 14px; |
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min-width: 220px; |
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z-index: 10; |
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border: 1px solid var(--color-text-dark); |
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box-shadow: 0 0 8px rgba(0, 0, 0, 0.3); |
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} |
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#node-props-panel { |
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position: absolute; |
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width: 220px; |
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background-color: var(--color-bg-sidebar); |
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border: 1px solid var(--color-border); |
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border-radius: var(--radius-small); |
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padding: 12px; |
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color: var(--color-text-white); |
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box-shadow: 0 0 10px rgba(0, 0, 0, 0.6); |
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display: none; |
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z-index: 10; |
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} |
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#node-props-panel h3 { |
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margin-top: 0; |
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font-size: 15px; |
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color: var(--color-text-primary); |
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} |
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#node-props-save { |
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margin-top: 8px; |
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padding: 10px; |
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background-color: var(--color-button); |
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color: var(--color-text-white); |
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border: none; |
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border-radius: var(--radius-small); |
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cursor: pointer; |
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font-size: 14px; |
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} |
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.prop-group { |
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display: none; |
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margin-bottom: 12px; |
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} |
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.prop-group label, |
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.prop-group input { |
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display: block; |
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width: 100%; |
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margin-top: 6px; |
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font-size: 13px; |
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} |
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input[type="text"], |
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input[type="number"] { |
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padding: 6px; |
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background-color: #222; |
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border: 1px solid var(--color-border); |
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color: var(--color-text-white); |
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border-radius: var(--radius-small); |
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font-family: var(--font-family-code); |
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} |
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/* === BUTTONS === */ |
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#run-button { |
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margin-top: auto; |
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padding: 10px; |
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background-color: var(--color-button); |
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color: var(--color-text-white); |
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border: none; |
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border-radius: var(--radius-small); |
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cursor: pointer; |
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font-size: 14px; |
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} |
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#run-button:disabled, |
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#node-props-panel button:disabled { |
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background-color: var(--color-button-disabled); |
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cursor: not-allowed; |
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} |
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/* === TABS === */ |
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.tabs { |
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display: flex; |
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flex-direction: column; |
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height: 100%; |
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overflow: hidden; |
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} |
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.tab-labels { |
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display: flex; |
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cursor: pointer; |
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} |
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.tab-labels label { |
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padding: 10px 20px; |
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background: var(--color-bg-body); |
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margin-right: 4px; |
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margin-bottom: 20px; |
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border-radius: var(--radius-small); |
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} |
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.tab-content { |
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border-top: 1px solid var(--color-border-panel); |
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padding: 20px 0 0; |
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display: none; |
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height: 100%; |
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} |
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input[name="tab"] { |
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display: none; |
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} |
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#tab1:checked ~ .tabs .tab-labels label[for="tab1"], |
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#tab2:checked ~ .tabs .tab-labels label[for="tab2"], |
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#tab3:checked ~ .tabs .tab-labels label[for="tab3"] { |
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background: var(--color-bg-tab-active); |
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font-weight: bold; |
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color: var(--color-text-accent); |
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} |
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#tab1:checked ~ .tabs #content1, |
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#tab2:checked ~ .tabs #content2, |
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#tab3:checked ~ .tabs #content3 { |
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display: flex; |
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flex-direction: column; |
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height: 100%; |
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overflow: hidden; |
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} |
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/* === CHALLENGE PANEL === */ |
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#challenge-container { |
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width: 15%; |
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background: var(--color-bg-dark); |
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margin: 12px 12px; |
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border: 2px solid var(--color-border-panel); |
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border-radius: var(--radius-large); |
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padding: 0 12px; |
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} |
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.challenge-list { |
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list-style: none; |
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margin: 0; |
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padding: 0; |
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} |
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.challenge-name { |
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font-weight: 500; |
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margin-bottom: 5px; |
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} |
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.challenge-item { |
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padding: 10px; |
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margin: 5px 0; |
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background: #21262d; |
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border-radius: 6px; |
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cursor: pointer; |
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transition: all 0.2s ease; |
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border-left: 3px solid transparent; |
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list-style: none; |
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} |
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.challenge-difficulty { |
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font-size: 0.8rem; |
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color: #0b949e; |
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} |
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.challenge-difficulty.easy { |
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color: #3fb950; |
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} |
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.challenge-difficulty.medium { |
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color: #d29922; |
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} |
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.challenge-difficulty.hard { |
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color: #f85149 |
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} |
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.challenge-item:hover { |
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background: #30363d; |
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} |
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.challenge-item.active { |
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background: #1a3d2a; |
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border-left-color: #00ff88; |
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} |
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/* === PANEL METRICS === */ |
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.panel-title { |
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font-weight: bold; |
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color: var(--color-text-white); |
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font-size: 15px; |
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margin-bottom: 0.5rem; |
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} |
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.panel-metric { |
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margin-bottom: 0.4rem; |
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} |
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.panel-metric .label { |
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display: inline-block; |
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width: 140px; |
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color: var(--color-text-muted); |
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} |
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.sidebar-title { |
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color: #8b949e; |
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font-size: 14px; |
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text-transform: uppercase; |
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letter-spacing: 1px; |
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margin-bottom: 15px; |
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padding-bottom: 8px; |
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padding-left: 8px; |
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border-bottom: 1px solid #303638; |
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} |
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.requirements-section { |
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background: #161b22; |
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border: 1px solid #30363d; |
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border-radius: 8px; |
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padding: 20px; |
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margin-bottom: 20px; |
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} |
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.requirements-list { |
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margin: 0; |
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padding: 0; |
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list-style: none; |
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} |
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.requirement-item { |
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position: relative; |
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padding: 8px 0 8px 25px; |
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margin: 0; |
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border-bottom: 1px solid #30363d;; |
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} |
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.requirement-item:before { |
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content: "✓"; |
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color: #00ff88; |
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position: absolute; |
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left: 0; |
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} |
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.modal { |
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position: absolute; |
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top: 30%; |
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left: 50%; |
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transform: translate(-50%, -30%); |
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background: #121212; |
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padding: 20px; |
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border-radius: 8px; |
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border: 1px solid #444; |
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z-index: 999; |
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color: #ccc; |
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} |
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.modal-content label { |
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display: block; |
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margin: 10px 0; |
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} |
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.modal-actions { |
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margin-top: 10px; |
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text-align: right; |
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} |
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.modal input { |
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width: 100%; |
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padding: 6px; |
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margin-top: 4px; |
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background: #222; |
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border: 1px solid #444; |
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color: #fff; |
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border-radius: 4px; |
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} |
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.modal select { |
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width: 100%; |
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padding: 6px; |
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margin-top: 4px; |
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background: #222; |
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border: 1px solid #444; |
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color: #fff; |
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border-radius: 4px; |
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} |
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</style> |
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</head> |
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<body> |
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<div id="page-container"> |
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<div id="sd-header">System Design Game</div> |
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<div id="main-content"> |
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<div id="challenge-container"> |
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<h2 class="sidebar-title">Challenges</h2> |
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<ul class="challenge-list"> |
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<li class="challenge-item active"> |
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<div class="challenge-name">Url Shortener</div> |
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<div class="challenge-difficulty easy">Easy</div> |
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</li> |
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<li class="challenge-item"> |
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<div class="challenge-name">Url Shortener</div> |
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<div class="challenge-difficulty easy">Easy</div> |
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</li> |
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|
<li class="challenge-item"> |
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<div class="challenge-name">Url Shortener</div> |
|
|
<div class="challenge-difficulty medium">Medium</div> |
|
|
</li> |
|
|
<li class="challenge-item"> |
|
|
<div class="challenge-name">Something hard</div> |
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|
<div class="challenge-difficulty hard">Hard</div> |
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|
</li> |
|
|
</ul> |
|
|
</div> |
|
|
<div id="canvas-wrapper"> |
|
|
<input type="radio" id="tab1" name="tab" checked> |
|
|
<input type="radio" id="tab2" name="tab"> |
|
|
<input type="radio" id="tab3" name="tab"> |
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|
|
|
|
<div class="tabs"> |
|
|
<div class="tab-labels"> |
|
|
<label for="tab1">Requirements</label> |
|
|
<label for="tab2">Design</label> |
|
|
<label for="tab3">Metrics</label> |
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</div> |
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|
|
|
|
<!-- Requirements --> |
|
|
<div id="content1" class="tab-content"> |
|
|
<div class="requirements-section"> |
|
|
<h3>Functional Requirements</h3> |
|
|
<ul class="requirements-list"> |
|
|
<li class="requirement-item">Something</li> |
|
|
<li class="requirement-item">Something else</li> |
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</ul> |
|
|
</div> |
|
|
|
|
|
<div class="requirements-section"> |
|
|
<h3>Non-Functional Requirements</h3> |
|
|
<ul class="requirements-list"> |
|
|
<li class="requirement-item">Something</li> |
|
|
<li class="requirement-item">Something else</li> |
|
|
</ul> |
|
|
</div> |
|
|
|
|
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</div> |
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|
|
|
|
<!-- Design--> |
|
|
<div id="content2" class="tab-content"> |
|
|
<div id="sidebar"> |
|
|
<div class="component-icon" draggable="true" data-type="user"> |
|
|
user |
|
|
<span class="tooltip">simulates user traffic</span> |
|
|
</div> |
|
|
|
|
|
<div class="component-icon" draggable="true" data-type="load balancer"> |
|
|
load balancer |
|
|
<span class="tooltip">cost: $5/mo<br>distributes traffic evenly<br>latency: 5 ms</span> |
|
|
</div> |
|
|
|
|
|
<div class="component-icon" draggable="true" data-type="webserver (small)"> |
|
|
web server (small) |
|
|
<span class="tooltip">cost: $10/mo<br>capacity: 100 rps<br>base latency: 50 ms</span> |
|
|
</div> |
|
|
|
|
|
<div class="component-icon" draggable="true" data-type="webserver (medium)"> |
|
|
web server (medium) |
|
|
<span class="tooltip">cost: $20/mo<br>capacity: 200 rps<br>base latency: 40 ms</span> |
|
|
</div> |
|
|
|
|
|
<div class="component-icon" draggable="true" data-type="database"> |
|
|
database |
|
|
<span class="tooltip">cost: $20/mo<br>read capacity: 150 rps<br>base latency: 80 ms<br>supports replication</span> |
|
|
</div> |
|
|
|
|
|
<div class="component-icon" draggable="true" data-type="cache (standard)"> |
|
|
cache (standard) |
|
|
<span class="tooltip">cost: $10/mo<br>capacity: 100 rps<br>latency: 5 ms<br>80% hit rate with 1hr ttl</span> |
|
|
</div> |
|
|
|
|
|
<div class="component-icon" draggable="true" data-type="cache (large)"> |
|
|
cache (large) |
|
|
<span class="tooltip">cost: $20/mo<br>capacity: 200 rps<br>latency: 5 ms<br>higher hit rate for large datasets</span> |
|
|
</div> |
|
|
|
|
|
<div class="component-icon" draggable="true" data-type="messagequeue"> |
|
|
message queue |
|
|
<span class="tooltip">cost: $15/mo<br>decouples components<br>useful for batching writes</span> |
|
|
</div> |
|
|
|
|
|
<div class="component-icon" draggable="true" data-type="cdn"> |
|
|
CDN |
|
|
<span class="tooltip">cost: $0.03/gb<br>improves global latency<br>caches static content</span> |
|
|
</div> |
|
|
|
|
|
<div class="component-icon" draggable="true" data-type="microservice"> |
|
|
microservice node |
|
|
<span class="tooltip">cost: $10/mo<br>stateless container<br>use for modular logic</span> |
|
|
</div> |
|
|
|
|
|
<div class="component-icon" draggable="true" data-type="data pipeline"> |
|
|
data pipeline |
|
|
<span class="tooltip">cost: $25/mo<br>stream or batch processing<br>used for analytics / etl</span> |
|
|
</div> |
|
|
|
|
|
<div class="component-icon" draggable="true" data-type="monitoring/alerting"> |
|
|
monitoring/alerting |
|
|
<span class="tooltip">cost: $5/mo<br>health checks + logs<br>alerts on failures</span> |
|
|
</div> |
|
|
|
|
|
<div class="component-icon" draggable="true" data-type="third party service"> |
|
|
third-party service |
|
|
<span class="tooltip">external apis<br>latency + cost vary<br>examples: payment, email, search</span> |
|
|
</div> |
|
|
</div> |
|
|
|
|
|
<div id="canvas-container"> |
|
|
<div id="connection-modal" style="display: none;" class="modal"> |
|
|
<div class="modal-content"> |
|
|
<h3>Create Connection</h3> |
|
|
<label> |
|
|
Label: |
|
|
<input type="text" id="connection-label" value="Read traffic"> |
|
|
</label> |
|
|
<label> |
|
|
Protocol: |
|
|
<select id="connection-protocol"> |
|
|
<option>HTTP</option> |
|
|
<option>HTTPS</option> |
|
|
<option>gRPC</option> |
|
|
<option>WebSocket</option> |
|
|
<option>GraphQL</option> |
|
|
<option>Kafka</option> |
|
|
<option>AMQP</option> |
|
|
<option>MQTT</option> |
|
|
<option>SQL</option> |
|
|
<option>NoSQL</option> |
|
|
<option>Redis</option> |
|
|
<option>TLS</option> |
|
|
</select> |
|
|
</label> |
|
|
<label style="margin-top: 10px;"> |
|
|
<input type="checkbox" id="connection-tls"> |
|
|
Enable TLS (encryption) |
|
|
</label> |
|
|
<div class="modal-actions"> |
|
|
<button id="connection-save">Save</button> |
|
|
<button id="connection-cancel">Cancel</button> |
|
|
</div> |
|
|
</div> |
|
|
</div> |
|
|
<div id="canvas-toolbar"> |
|
|
<button id="arrow-tool-btn" class="toolbar-btn">Arrow Tool</button> |
|
|
</div> |
|
|
<div id="info-panel"> |
|
|
<div id="constraints-panel"> |
|
|
<div class="panel-title">level constraints</div> |
|
|
<div class="panel-metric"><span class="label">🎯 target rps:</span> <span id="constraint-rps">–</span></div> |
|
|
<div class="panel-metric"><span class="label">⏱️ max p95 latency:</span> <span id="constraint-latency">–</span></div> |
|
|
<div class="panel-metric"><span class="label">💸 max cost:</span> <span id="constraint-cost">–</span></div> |
|
|
<div class="panel-metric"><span class="label">🔒 availability:</span> <span id="constraint-availability">–</span></div> |
|
|
</div> |
|
|
|
|
|
<div id="score-panel"> |
|
|
<div class="panel-title">simulation results</div> |
|
|
<div class="panel-metric"><span class="label">✅ cost:</span> <span id="score-cost">–</span></div> |
|
|
<div class="panel-metric"><span class="label">⚡ p95 latency:</span> <span id="score-p95">–</span></div> |
|
|
<div class="panel-metric"><span class="label">📈 achieved rps:</span> <span id="score-rps">–</span></div> |
|
|
<div class="panel-metric"><span class="label">🛡️ availability:</span> <span id="score-availability">–</span></div> |
|
|
</div> |
|
|
</div> |
|
|
|
|
|
<svg id="canvas"> |
|
|
<defs> |
|
|
<marker id="arrowhead-start" markerWidth="10" markerHeight="7" refX="0" refY="3.5" |
|
|
orient="auto" markerUnits="strokeWidth"> |
|
|
<path d="M10 0 L0 3.5 L10 7" fill="#ccc" /> |
|
|
</marker> |
|
|
<marker id="arrowhead-end" markerWidth="10" markerHeight="7" refX="10" refY="3.5" |
|
|
orient="auto" markerUnits="strokeWidth"> |
|
|
<path d="M0 0 L10 3.5 L0 7" fill="#ccc" /> |
|
|
</marker> |
|
|
</defs> |
|
|
</svg> |
|
|
<div id="node-props-panel"> |
|
|
<h3>node properties</h3> |
|
|
<div id="label-group"> |
|
|
<label>label:<input type="text" name="label" /></label> |
|
|
</div> |
|
|
<div id="db-group" class="prop-group"> |
|
|
<label>replication factor:<input type="number" name="replication" min="1" step="1" /></label> |
|
|
</div> |
|
|
<div id="cache-group" class="prop-group"> |
|
|
<label>cache ttl (secs):<input type="number" name="cachettl" min="0" step="60" /></label> |
|
|
</div> |
|
|
<button id="node-props-save" disabled>save</button> |
|
|
</div> |
|
|
<div id="bottom-panel"> |
|
|
<button id="run-button" disabled>Test Design</button> |
|
|
|
|
|
</div> |
|
|
|
|
|
</div> |
|
|
|
|
|
</div> |
|
|
|
|
|
<!-- Metrics--> |
|
|
<div id="content3" class="tab-content">This is Tab 3 content.</div> |
|
|
</div> |
|
|
</div> |
|
|
</div> |
|
|
</div> |
|
|
|
|
|
<script type="module" src="/static/index.js"></script> |
|
|
</body> |
|
|
</html> |
|
|
|
|
|
|
