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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Streamlit Plot Explorer — Project Roadmap</title>
<link href="https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=DM+Mono:wght@400;500&family=DM+Sans:wght@300;400;500&display=swap" rel="stylesheet">
<style>
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
--bg: #0e0f11;
--surface: #16181c;
--surface2: #1e2127;
--border: rgba(255,255,255,0.07);
--border-bright: rgba(255,255,255,0.14);
--text-primary: #f0f0ee;
--text-secondary: #8a8c93;
--text-muted: #4a4c55;
--accent-p1: #FF6B6B;
--accent-p1-dim: rgba(255,107,107,0.12);
--accent-p2: #6B9FFF;
--accent-p2-dim: rgba(107,159,255,0.10);
--accent-p3: #A78BFA;
--accent-p3-dim: rgba(167,139,250,0.10);
--green: #4ADE80;
--amber: #FBB040;
}
body {
font-family: 'DM Sans', sans-serif;
background: var(--bg);
color: var(--text-primary);
min-height: 100vh;
overflow-x: hidden;
}
/* Grid background */
body::before {
content: '';
position: fixed;
inset: 0;
background-image:
linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
background-size: 60px 60px;
pointer-events: none;
z-index: 0;
}
.wrapper {
position: relative;
z-index: 1;
max-width: 960px;
margin: 0 auto;
padding: 72px 40px 120px;
}
/* Header */
.header {
margin-bottom: 80px;
border-bottom: 1px solid var(--border);
padding-bottom: 48px;
}
.eyebrow {
font-family: 'DM Mono', monospace;
font-size: 11px;
font-weight: 500;
letter-spacing: 0.18em;
text-transform: uppercase;
color: var(--accent-p1);
margin-bottom: 20px;
display: flex;
align-items: center;
gap: 10px;
}
.eyebrow::before {
content: '';
width: 24px; height: 1px;
background: var(--accent-p1);
}
h1 {
font-family: 'DM Serif Display', serif;
font-size: clamp(36px, 5vw, 58px);
line-height: 1.08;
font-weight: 400;
color: var(--text-primary);
margin-bottom: 20px;
letter-spacing: -0.5px;
}
h1 em {
font-style: italic;
color: var(--text-secondary);
}
.header-meta {
display: flex;
gap: 32px;
align-items: center;
flex-wrap: wrap;
}
.meta-pill {
font-family: 'DM Mono', monospace;
font-size: 11px;
padding: 4px 12px;
border-radius: 100px;
background: var(--surface2);
border: 1px solid var(--border);
color: var(--text-secondary);
}
.status-pill {
font-family: 'DM Mono', monospace;
font-size: 11px;
padding: 4px 12px;
border-radius: 100px;
background: rgba(74,222,128,0.1);
border: 1px solid rgba(74,222,128,0.25);
color: var(--green);
display: flex;
align-items: center;
gap: 6px;
}
.status-dot {
width: 6px; height: 6px;
border-radius: 50%;
background: var(--green);
animation: pulse 2s infinite;
}
@keyframes pulse {
0%, 100% { opacity: 1; transform: scale(1); }
50% { opacity: 0.5; transform: scale(0.85); }
}
/* Timeline */
.timeline {
position: relative;
display: flex;
flex-direction: column;
gap: 0;
}
.timeline::before {
content: '';
position: absolute;
left: 27px;
top: 20px;
bottom: 20px;
width: 1px;
background: linear-gradient(to bottom, var(--accent-p1) 0%, var(--accent-p1) 33%, var(--accent-p2) 33%, var(--accent-p2) 66%, var(--accent-p3) 66%, var(--accent-p3) 100%);
opacity: 0.2;
}
/* Phase Card */
.phase {
position: relative;
display: grid;
grid-template-columns: 56px 1fr;
gap: 0 28px;
margin-bottom: 0;
}
.phase + .phase {
margin-top: 4px;
}
.phase-marker {
display: flex;
flex-direction: column;
align-items: center;
gap: 0;
padding-top: 28px;
}
.phase-dot {
width: 16px; height: 16px;
border-radius: 50%;
border: 2px solid;
background: var(--bg);
flex-shrink: 0;
position: relative;
z-index: 1;
}
.phase-1 .phase-dot { border-color: var(--accent-p1); box-shadow: 0 0 12px rgba(255,107,107,0.3); }
.phase-2 .phase-dot { border-color: var(--accent-p2); }
.phase-3 .phase-dot { border-color: var(--accent-p3); }
.phase-1 .phase-dot::after {
content: '';
position: absolute;
inset: 3px;
border-radius: 50%;
background: var(--accent-p1);
}
.phase-line {
width: 1px;
flex: 1;
min-height: 40px;
background: var(--border);
margin-top: 4px;
}
.phase-body {
padding: 20px 0 48px;
}
.phase-header {
display: flex;
align-items: baseline;
gap: 16px;
margin-bottom: 6px;
flex-wrap: wrap;
}
.phase-number {
font-family: 'DM Mono', monospace;
font-size: 10px;
letter-spacing: 0.15em;
text-transform: uppercase;
color: var(--text-muted);
}
.phase-badge {
font-family: 'DM Mono', monospace;
font-size: 10px;
padding: 2px 10px;
border-radius: 100px;
font-weight: 500;
}
.badge-active {
background: rgba(74,222,128,0.12);
border: 1px solid rgba(74,222,128,0.3);
color: var(--green);
}
.badge-upcoming {
background: var(--surface2);
border: 1px solid var(--border);
color: var(--text-muted);
}
.phase-title {
font-family: 'DM Serif Display', serif;
font-size: 26px;
font-weight: 400;
color: var(--text-primary);
margin-bottom: 8px;
letter-spacing: -0.2px;
}
.phase-1 .phase-title { color: var(--text-primary); }
.phase-2 .phase-title { color: var(--text-secondary); }
.phase-3 .phase-title { color: var(--text-secondary); }
.phase-desc {
font-size: 14px;
color: var(--text-secondary);
line-height: 1.6;
margin-bottom: 24px;
max-width: 520px;
}
/* Card containing tasks */
.phase-card {
border-radius: 12px;
border: 1px solid var(--border);
overflow: hidden;
}
.phase-1 .phase-card { border-color: rgba(255,107,107,0.2); background: rgba(255,107,107,0.04); }
.phase-2 .phase-card { background: var(--surface); }
.phase-3 .phase-card { background: var(--surface); }
.card-header {
display: flex;
align-items: center;
justify-content: space-between;
padding: 16px 20px;
border-bottom: 1px solid var(--border);
background: rgba(0,0,0,0.2);
}
.card-header-left {
display: flex;
align-items: center;
gap: 10px;
}
.card-header-label {
font-family: 'DM Mono', monospace;
font-size: 11px;
color: var(--text-secondary);
letter-spacing: 0.05em;
}
.traffic-lights {
display: flex;
gap: 5px;
}
.tl {
width: 10px; height: 10px;
border-radius: 50%;
}
.tl-r { background: #FF5F56; }
.tl-y { background: #FFBD2E; }
.tl-g { background: #27C93F; }
.phase-2 .tl-r, .phase-2 .tl-y, .phase-2 .tl-g,
.phase-3 .tl-r, .phase-3 .tl-y, .phase-3 .tl-g {
opacity: 0.3;
}
.card-tag {
font-family: 'DM Mono', monospace;
font-size: 10px;
color: var(--text-muted);
}
.task-list {
padding: 8px 0;
}
.task-group {
padding: 12px 20px 4px;
}
.task-group-label {
font-family: 'DM Mono', monospace;
font-size: 10px;
text-transform: uppercase;
letter-spacing: 0.12em;
color: var(--text-muted);
margin-bottom: 8px;
}
.task-item {
display: flex;
align-items: flex-start;
gap: 10px;
padding: 7px 0;
border-bottom: 1px solid var(--border);
cursor: default;
}
.task-item:last-child { border-bottom: none; }
.task-check {
width: 16px; height: 16px;
border-radius: 4px;
flex-shrink: 0;
margin-top: 1px;
display: flex;
align-items: center;
justify-content: center;
}
.check-done {
background: rgba(74,222,128,0.15);
border: 1px solid rgba(74,222,128,0.4);
}
.check-active {
background: var(--accent-p1-dim);
border: 1px solid rgba(255,107,107,0.4);
}
.check-todo {
background: transparent;
border: 1px solid var(--text-muted);
opacity: 0.4;
}
.check-icon {
width: 8px; height: 8px;
}
.task-text {
font-size: 13.5px;
color: var(--text-primary);
line-height: 1.4;
flex: 1;
}
.task-dim .task-text {
color: var(--text-secondary);
}
.task-tag {
font-family: 'DM Mono', monospace;
font-size: 10px;
padding: 1px 8px;
border-radius: 4px;
margin-top: 2px;
flex-shrink: 0;
white-space: nowrap;
}
.tag-layout { background: rgba(107,159,255,0.12); color: #6B9FFF; }
.tag-data { background: rgba(167,139,250,0.12); color: #A78BFA; }
.tag-ux { background: rgba(251,176,64,0.12); color: #FBB040; }
.tag-dx { background: rgba(255,107,107,0.12); color: #FF6B6B; }
.tag-perf { background: rgba(74,222,128,0.12); color: #4ADE80; }
.divider {
height: 1px;
background: var(--border);
margin: 0 20px;
opacity: 0.5;
}
/* Deliverable strip */
.deliverable-strip {
display: flex;
gap: 8px;
flex-wrap: wrap;
padding: 16px 20px;
border-top: 1px solid var(--border);
background: rgba(0,0,0,0.15);
}
.deliverable {
font-family: 'DM Mono', monospace;
font-size: 10px;
padding: 3px 10px;
border-radius: 100px;
background: var(--surface2);
border: 1px solid var(--border);
color: var(--text-secondary);
display: flex;
align-items: center;
gap: 5px;
}
.phase-1 .deliverable {
border-color: rgba(255,107,107,0.2);
color: rgba(255,107,107,0.8);
background: rgba(255,107,107,0.06);
}
.deliverable-dot {
width: 5px; height: 5px;
border-radius: 50%;
background: currentColor;
opacity: 0.7;
}
/* Summary row */
.summary-row {
display: grid;
grid-template-columns: repeat(3, 1fr);
gap: 1px;
background: var(--border);
border: 1px solid var(--border);
border-radius: 12px;
overflow: hidden;
margin-top: 64px;
}
.summary-cell {
background: var(--surface);
padding: 24px;
text-align: center;
}
.summary-num {
font-family: 'DM Serif Display', serif;
font-size: 36px;
line-height: 1;
margin-bottom: 6px;
}
.summary-label {
font-size: 12px;
color: var(--text-secondary);
}
.footer {
margin-top: 64px;
padding-top: 32px;
border-top: 1px solid var(--border);
display: flex;
align-items: center;
justify-content: space-between;
flex-wrap: gap;
gap: 16px;
}
.footer-text {
font-family: 'DM Mono', monospace;
font-size: 11px;
color: var(--text-muted);
}
.phase-progress {
display: flex;
gap: 4px;
align-items: center;
}
.progress-seg {
height: 3px;
border-radius: 2px;
width: 40px;
}
.seg-1 { background: var(--accent-p1); width: 60px; }
.seg-2 { background: var(--text-muted); opacity: 0.4; }
.seg-3 { background: var(--text-muted); opacity: 0.4; }
/* Hover state on tasks */
.phase-1 .task-item:hover { background: rgba(255,107,107,0.04); margin: 0 -8px; padding-left: 8px; padding-right: 8px; border-radius: 6px; border-color: transparent; }
</style>
</head>
<body>
<div class="wrapper">
<header class="header">
<div class="eyebrow">Project Roadmap</div>
<h1>Streamlit Plot<br><em>Explorer</em></h1>
<div class="header-meta">
<div class="status-pill"><span class="status-dot"></span>Phase 1 in progress</div>
<div class="meta-pill">3 phases · ~18 tasks</div>
<div class="meta-pill">Stack: HTML · JS · Plotly · CodeMirror</div>
</div>
</header>
<div class="timeline">
<!-- PHASE 1 -->
<div class="phase phase-1">
<div class="phase-marker">
<div class="phase-dot"></div>
<div class="phase-line"></div>
</div>
<div class="phase-body">
<div class="phase-header">
<span class="phase-number">Phase 01</span>
<span class="phase-badge badge-active">Active — Building now</span>
</div>
<div class="phase-title">Foundation & Static Viewer</div>
<div class="phase-desc">
Core layout scaffolding, a curated set of Streamlit chart types rendered via Plotly.js,
syntax-highlighted code panels, and a polished navigation sidebar.
Everything is read-only — the live editing layer comes in Phase 2.
</div>
<div class="phase-card">
<div class="card-header">
<div class="card-header-left">
<div class="traffic-lights">
<div class="tl tl-r"></div><div class="tl tl-y"></div><div class="tl tl-g"></div>
</div>
<span class="card-header-label">phase_1 / index.html</span>
</div>
<span class="card-tag">6 tasks</span>
</div>
<div class="task-list">
<div class="task-group">
<div class="task-group-label">Layout & Design</div>
<div class="task-item">
<div class="task-check check-active">
<svg class="check-icon" viewBox="0 0 8 8"><circle cx="4" cy="4" r="2.5" fill="#FF6B6B"/></svg>
</div>
<div class="task-text">Two-panel layout — syntax-highlighted code left, live chart right</div>
<span class="task-tag tag-layout">layout</span>
</div>
<div class="task-item">
<div class="task-check check-active">
<svg class="check-icon" viewBox="0 0 8 8"><circle cx="4" cy="4" r="2.5" fill="#FF6B6B"/></svg>
</div>
<div class="task-text">Sidebar navigator with chart type categories and search filter</div>
<span class="task-tag tag-layout">layout</span>
</div>
<div class="task-item">
<div class="task-check check-active">
<svg class="check-icon" viewBox="0 0 8 8"><circle cx="4" cy="4" r="2.5" fill="#FF6B6B"/></svg>
</div>
<div class="task-text">Responsive design with collapsible sidebar on mobile</div>
<span class="task-tag tag-ux">ux</span>
</div>
</div>
<div class="divider"></div>
<div class="task-group">
<div class="task-group-label">Chart Gallery</div>
<div class="task-item">
<div class="task-check check-active">
<svg class="check-icon" viewBox="0 0 8 8"><circle cx="4" cy="4" r="2.5" fill="#FF6B6B"/></svg>
</div>
<div class="task-text">6 initial chart types — Line, Bar, Scatter, Area, Histogram, Pie</div>
<span class="task-tag tag-data">data</span>
</div>
<div class="task-item">
<div class="task-check check-active">
<svg class="check-icon" viewBox="0 0 8 8"><circle cx="4" cy="4" r="2.5" fill="#FF6B6B"/></svg>
</div>
<div class="task-text">Plotly.js rendering to visually match Streamlit's chart output</div>
<span class="task-tag tag-data">data</span>
</div>
<div class="task-item">
<div class="task-check check-active">
<svg class="check-icon" viewBox="0 0 8 8"><circle cx="4" cy="4" r="2.5" fill="#FF6B6B"/></svg>
</div>
<div class="task-text">Streamlit Python code snippets with highlight.js syntax coloring</div>
<span class="task-tag tag-dx">dx</span>
</div>
</div>
</div>
<div class="deliverable-strip">
<span class="deliverable"><span class="deliverable-dot"></span>app_phase1.html</span>
<span class="deliverable"><span class="deliverable-dot"></span>Plotly.js charts</span>
<span class="deliverable"><span class="deliverable-dot"></span>Static code viewer</span>
<span class="deliverable"><span class="deliverable-dot"></span>6 chart types</span>
</div>
</div>
</div>
</div>
<!-- PHASE 2 -->
<div class="phase phase-2">
<div class="phase-marker">
<div class="phase-dot"></div>
<div class="phase-line"></div>
</div>
<div class="phase-body">
<div class="phase-header">
<span class="phase-number">Phase 02</span>
<span class="phase-badge badge-upcoming">Upcoming</span>
</div>
<div class="phase-title" style="color: var(--text-secondary)">Live Code Editing</div>
<div class="phase-desc">
Transform the read-only code pane into a fully editable CodeMirror editor.
Code changes trigger instant chart re-renders via a Python → Plotly bridge,
with error handling and a status console.
</div>
<div class="phase-card">
<div class="card-header">
<div class="card-header-left">
<div class="traffic-lights">
<div class="tl tl-r"></div><div class="tl tl-y"></div><div class="tl tl-g"></div>
</div>
<span class="card-header-label">phase_2 / editor.js</span>
</div>
<span class="card-tag">6 tasks</span>
</div>
<div class="task-list">
<div class="task-group">
<div class="task-group-label">Code Editor</div>
<div class="task-item task-dim">
<div class="task-check check-todo"></div>
<div class="task-text">Integrate CodeMirror 6 with Python language support and theme</div>
<span class="task-tag tag-dx">dx</span>
</div>
<div class="task-item task-dim">
<div class="task-check check-todo"></div>
<div class="task-text">Debounced live updates — re-render chart on code change (300ms delay)</div>
<span class="task-tag tag-ux">ux</span>
</div>
<div class="task-item task-dim">
<div class="task-check check-todo"></div>
<div class="task-text">Inline error highlighting and bottom console for parse errors</div>
<span class="task-tag tag-dx">dx</span>
</div>
</div>
<div class="divider"></div>
<div class="task-group">
<div class="task-group-label">Expanded Chart Library</div>
<div class="task-item task-dim">
<div class="task-check check-todo"></div>
<div class="task-text">Add Heatmap, Box plot, Violin, and 3D Scatter chart types</div>
<span class="task-tag tag-data">data</span>
</div>
<div class="task-item task-dim">
<div class="task-check check-todo"></div>
<div class="task-text">Streamlit widget stubs — st.slider, st.selectbox, st.checkbox</div>
<span class="task-tag tag-ux">ux</span>
</div>
<div class="task-item task-dim">
<div class="task-check check-todo"></div>
<div class="task-text">Reset to default code button with animated diff highlight</div>
<span class="task-tag tag-ux">ux</span>
</div>
</div>
</div>
<div class="deliverable-strip">
<span class="deliverable"><span class="deliverable-dot"></span>CodeMirror editor</span>
<span class="deliverable"><span class="deliverable-dot"></span>Live re-render</span>
<span class="deliverable"><span class="deliverable-dot"></span>Error console</span>
<span class="deliverable"><span class="deliverable-dot"></span>10+ chart types</span>
</div>
</div>
</div>
</div>
<!-- PHASE 3 -->
<div class="phase phase-3">
<div class="phase-marker">
<div class="phase-dot"></div>
</div>
<div class="phase-body">
<div class="phase-header">
<span class="phase-number">Phase 03</span>
<span class="phase-badge badge-upcoming">Upcoming</span>
</div>
<div class="phase-title" style="color: var(--text-secondary)">Polish & Advanced Features</div>
<div class="phase-desc">
Export, sharing, performance, and a Streamlit-accurate widget layer.
The finished product should feel like a first-class developer reference tool.
</div>
<div class="phase-card">
<div class="card-header">
<div class="card-header-left">
<div class="traffic-lights">
<div class="tl tl-r"></div><div class="tl tl-y"></div><div class="tl tl-g"></div>
</div>
<span class="card-header-label">phase_3 / app.js</span>
</div>
<span class="card-tag">6 tasks</span>
</div>
<div class="task-list">
<div class="task-group">
<div class="task-group-label">Export & Sharing</div>
<div class="task-item task-dim">
<div class="task-check check-todo"></div>
<div class="task-text">Export chart as PNG / SVG / interactive HTML</div>
<span class="task-tag tag-ux">ux</span>
</div>
<div class="task-item task-dim">
<div class="task-check check-todo"></div>
<div class="task-text">Shareable URL encoding current code and chart type in hash</div>
<span class="task-tag tag-dx">dx</span>
</div>
<div class="task-item task-dim">
<div class="task-check check-todo"></div>
<div class="task-text">Copy-to-clipboard button for code snippets</div>
<span class="task-tag tag-ux">ux</span>
</div>
</div>
<div class="divider"></div>
<div class="task-group">
<div class="task-group-label">Performance & Quality</div>
<div class="task-item task-dim">
<div class="task-check check-todo"></div>
<div class="task-text">Lazy-load Plotly chart modules to cut initial bundle size</div>
<span class="task-tag tag-perf">perf</span>
</div>
<div class="task-item task-dim">
<div class="task-check check-todo"></div>
<div class="task-text">Full Streamlit colour theme — dark and light mode toggles</div>
<span class="task-tag tag-ux">ux</span>
</div>
<div class="task-item task-dim">
<div class="task-check check-todo"></div>
<div class="task-text">Full-screen chart view with presentation mode</div>
<span class="task-tag tag-ux">ux</span>
</div>
</div>
</div>
<div class="deliverable-strip">
<span class="deliverable"><span class="deliverable-dot"></span>Export PNG/SVG</span>
<span class="deliverable"><span class="deliverable-dot"></span>Share URLs</span>
<span class="deliverable"><span class="deliverable-dot"></span>Theme switcher</span>
<span class="deliverable"><span class="deliverable-dot"></span>Presentation mode</span>
</div>
</div>
</div>
</div>
</div><!-- end timeline -->
<div class="summary-row">
<div class="summary-cell">
<div class="summary-num" style="color: var(--accent-p1)">3</div>
<div class="summary-label">Phases</div>
</div>
<div class="summary-cell">
<div class="summary-num" style="color: var(--accent-p2)">18</div>
<div class="summary-label">Total tasks</div>
</div>
<div class="summary-cell">
<div class="summary-num" style="color: var(--accent-p3)">6</div>
<div class="summary-label">Chart types in Phase 1</div>
</div>
</div>
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<div class="footer-text">streamlit-plot-explorer · phase 1 of 3</div>
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