UI 组件简单

Onboarding — Sample-data / try with demo prompt

A first-run onboarding pattern that turns an empty workspace into something you can actually click. A Start with sample data prompt offers two choice cards — load a faux CRM pipeline of example deals, or start from scratch and stay empty. Picking the demo shows a brief shimmering skeleton before the populated table animates in, with a toast confirming the count and a Clear demo data button to revert. Toggle between a modal prompt and an inline banner, and between preview-thumbnail and text-only cards.

在 Lab 中打开

html css vanilla-js

目标: JS HTML

代码

:root {
  --brand: #5b5bf0;
  --brand-d: #4646d6;
  --brand-700: #3a3ab8;
  --brand-50: #eef0ff;
  --accent: #00b4a6;
  --accent-soft: #d8f5f2;
  --ink: #101322;
  --ink-2: #3a4060;
  --muted: #6c7393;
  --bg: #f6f7fb;
  --white: #ffffff;
  --surface: #ffffff;
  --line: rgba(16, 19, 34, 0.1);
  --line-2: rgba(16, 19, 34, 0.16);
  --ok: #2f9e6f;
  --warn: #d98a2b;
  --danger: #d4503e;
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 20px;
  --sh-1: 0 1px 2px rgba(16, 19, 34, 0.08);
  --sh-2: 0 8px 24px rgba(16, 19, 34, 0.08);
  --sh-lift: 0 18px 48px rgba(16, 19, 34, 0.16);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1,
h2,
h3,
p {
  margin: 0;
}

button {
  font-family: inherit;
}

:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
  border-radius: var(--r-sm);
}

.page {
  max-width: 1080px;
  margin: 0 auto;
  padding: 40px 24px 64px;
}

/* ---------- Masthead ---------- */
.masthead {
  margin-bottom: 26px;
}

.kicker {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--brand);
  margin-bottom: 8px;
}

.title {
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.lede {
  margin-top: 12px;
  max-width: 64ch;
  color: var(--ink-2);
  font-size: 15px;
}

/* ---------- Variant switcher ---------- */
.switcher {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.seg {
  display: inline-flex;
  padding: 4px;
  gap: 2px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 999px;
  box-shadow: var(--sh-1);
}

.seg-btn {
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
  padding: 7px 14px;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.16s ease, color 0.16s ease;
}

.seg-btn:hover {
  color: var(--ink-2);
}

.seg-btn.is-active {
  background: var(--brand);
  color: #fff;
  box-shadow: 0 2px 8px rgba(91, 91, 240, 0.35);
}

/* ---------- Layout ---------- */
.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 268px;
  gap: 22px;
  align-items: start;
}

/* ---------- App shell ---------- */
.app {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: var(--sh-2);
  overflow: hidden;
}

.app-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, #fff, #fbfbff);
}

.app-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.app-logo {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: var(--brand-50);
  color: var(--brand-d);
  flex: none;
}

.app-name {
  font-weight: 700;
  font-size: 14px;
  color: var(--ink);
  white-space: nowrap;
}

.app-crumb {
  font-size: 13px;
  color: var(--muted);
  white-space: nowrap;
}

.app-tools {
  display: flex;
  align-items: center;
  gap: 10px;
}

.rows-badge {
  font-size: 12px;
  font-weight: 600;
  color: var(--ink-2);
  background: var(--bg);
  border: 1px solid var(--line);
  padding: 5px 10px;
  border-radius: 999px;
  white-space: nowrap;
}

.ghost-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--line-2);
  background: var(--white);
  color: var(--ink-2);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 11px;
  border-radius: var(--r-sm);
  cursor: pointer;
  transition: border-color 0.16s, color 0.16s, background 0.16s;
}

.ghost-btn:hover {
  border-color: var(--danger);
  color: var(--danger);
  background: #fdf3f1;
}

.ghost-btn:active {
  transform: translateY(1px);
}

/* ---------- Inline banner variant ---------- */
.banner {
  display: flex;
  align-items: center;
  gap: 14px;
  position: relative;
  margin: 16px 18px 0;
  padding: 16px 44px 16px 16px;
  background: linear-gradient(120deg, var(--brand-50), #f3f7ff 60%, var(--accent-soft));
  border: 1px solid rgba(91, 91, 240, 0.22);
  border-radius: var(--r-md);
  animation: drop 0.32s cubic-bezier(0.2, 0.9, 0.3, 1.1) both;
}

.banner-spark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: #fff;
  color: var(--brand);
  box-shadow: var(--sh-1);
  flex: none;
}

.banner-copy {
  min-width: 0;
  flex: 1;
}

.banner-title {
  font-weight: 700;
  font-size: 14px;
  color: var(--ink);
}

.banner-sub {
  font-size: 13px;
  color: var(--ink-2);
  margin-top: 2px;
}

.banner-actions {
  display: flex;
  gap: 8px;
  flex: none;
}

.banner-x {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.banner-x:hover {
  background: rgba(16, 19, 34, 0.06);
  color: var(--ink);
}

/* ---------- Buttons ---------- */
.btn {
  border: 1px solid transparent;
  font-size: 13px;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: var(--r-sm);
  cursor: pointer;
  transition: background 0.16s, border-color 0.16s, transform 0.06s, box-shadow 0.16s;
  white-space: nowrap;
}

.btn-primary {
  background: var(--brand);
  color: #fff;
  box-shadow: 0 2px 8px rgba(91, 91, 240, 0.32);
}

.btn-primary:hover {
  background: var(--brand-d);
}

.btn-primary:active {
  transform: translateY(1px);
}

.btn-ghost {
  background: var(--white);
  border-color: var(--line-2);
  color: var(--ink-2);
}

.btn-ghost:hover {
  border-color: var(--brand);
  color: var(--brand-d);
  background: var(--brand-50);
}

.btn-ghost:active {
  transform: translateY(1px);
}

/* ---------- Board / table ---------- */
.board {
  padding: 16px 18px 18px;
}

.board-head,
.row {
  display: grid;
  grid-template-columns: minmax(0, 2.1fr) minmax(0, 1.6fr) minmax(0, 1.4fr) minmax(0, 1.2fr) minmax(0, 0.9fr);
  gap: 12px;
  align-items: center;
}

.board-head {
  padding: 0 12px 10px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
}

.board-head .num,
.row .num {
  text-align: right;
}

/* Empty state */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 46px 16px 40px;
  color: var(--muted);
}

.empty-art {
  color: var(--brand);
  margin-bottom: 12px;
}

.empty-title {
  font-weight: 700;
  font-size: 15px;
  color: var(--ink-2);
}

.empty-sub {
  font-size: 13px;
  margin-top: 3px;
}

/* Skeleton */
.skeleton {
  padding: 8px 0 2px;
}

.sk-row {
  height: 46px;
  margin: 6px 12px;
  border-radius: var(--r-sm);
  background: linear-gradient(
    90deg,
    rgba(16, 19, 34, 0.05) 25%,
    rgba(16, 19, 34, 0.1) 37%,
    rgba(16, 19, 34, 0.05) 63%
  );
  background-size: 400% 100%;
  animation: shimmer 1.2s ease-in-out infinite;
}

.sk-row:nth-child(2) {
  animation-delay: 0.08s;
}
.sk-row:nth-child(3) {
  animation-delay: 0.16s;
}
.sk-row:nth-child(4) {
  animation-delay: 0.24s;
}
.sk-row:nth-child(5) {
  animation-delay: 0.32s;
}

@keyframes shimmer {
  0% {
    background-position: 100% 0;
  }
  100% {
    background-position: 0 0;
  }
}

/* Populated rows */
.rows {
  display: flex;
  flex-direction: column;
}

.row {
  padding: 11px 12px;
  border-radius: var(--r-sm);
  font-size: 13.5px;
  border: 1px solid transparent;
  transition: background 0.14s, border-color 0.14s;
  animation: rowIn 0.34s cubic-bezier(0.2, 0.9, 0.3, 1.05) both;
}

.row:hover {
  background: var(--bg);
  border-color: var(--line);
}

.row + .row {
  margin-top: 2px;
}

.deal-cell {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.deal-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex: none;
  background: var(--brand);
}

.deal-name {
  font-weight: 600;
  color: var(--ink);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cell-muted {
  color: var(--ink-2);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.owner-cell {
  display: flex;
  align-items: center;
  gap: 7px;
  min-width: 0;
}

.avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  flex: none;
  display: grid;
  place-items: center;
  font-size: 11px;
  font-weight: 700;
  color: #fff;
}

.value-cell {
  text-align: right;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
}

/* Stage chips */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11.5px;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: 999px;
  white-space: nowrap;
}

.chip::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.chip-lead {
  background: var(--brand-50);
  color: var(--brand-700);
}
.chip-qual {
  background: var(--accent-soft);
  color: #0a7d73;
}
.chip-prop {
  background: #fff3e2;
  color: var(--warn);
}
.chip-won {
  background: #e4f6ec;
  color: var(--ok);
}
.chip-lost {
  background: #fdeae7;
  color: var(--danger);
}

/* ---------- Modal ---------- */
.overlay {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 20px;
  z-index: 50;
}

.backdrop {
  position: absolute;
  inset: 0;
  background: rgba(16, 19, 34, 0.46);
  backdrop-filter: blur(2px);
  animation: fade 0.2s ease both;
}

.modal {
  position: relative;
  width: min(560px, 100%);
  background: var(--surface);
  border-radius: var(--r-lg);
  box-shadow: var(--sh-lift);
  padding: 28px 26px 22px;
  animation: pop 0.26s cubic-bezier(0.2, 0.9, 0.3, 1.08) both;
}

.modal-x {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 9px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.modal-x:hover {
  background: rgba(16, 19, 34, 0.06);
  color: var(--ink);
}

.modal-head {
  text-align: center;
  margin-bottom: 20px;
}

.modal-spark {
  display: inline-grid;
  place-items: center;
  width: 50px;
  height: 50px;
  border-radius: 15px;
  background: linear-gradient(135deg, var(--brand-50), var(--accent-soft));
  color: var(--brand);
  margin-bottom: 12px;
}

.modal-head h2 {
  font-size: 21px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.modal-head p {
  margin-top: 7px;
  font-size: 14px;
  color: var(--ink-2);
  max-width: 42ch;
  margin-inline: auto;
}

/* ---------- Choice cards ---------- */
.choices {
  display: grid;
  gap: 12px;
}

.choice {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  text-align: left;
  background: var(--white);
  border: 1.5px solid var(--line);
  border-radius: var(--r-md);
  padding: 14px;
  cursor: pointer;
  transition: border-color 0.16s, box-shadow 0.16s, transform 0.08s, background 0.16s;
}

.choice:hover {
  border-color: var(--brand);
  box-shadow: 0 6px 18px rgba(91, 91, 240, 0.16);
  transform: translateY(-1px);
}

.choice:active {
  transform: translateY(0);
}

.choice-demo:hover {
  background: linear-gradient(180deg, #fff, var(--brand-50));
}

.choice-thumb {
  flex: none;
  width: 76px;
  height: 60px;
  border-radius: 10px;
  background: linear-gradient(160deg, #eef0ff, #f7f8ff);
  border: 1px solid var(--line);
  padding: 9px;
  display: flex;
  flex-direction: column;
  gap: 5px;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.thumb-bar {
  height: 5px;
  border-radius: 3px;
  background: rgba(91, 91, 240, 0.35);
  width: 100%;
}
.thumb-bar.w2 {
  width: 70%;
}
.thumb-bar.w3 {
  width: 85%;
}

.thumb-pill {
  position: absolute;
  right: 8px;
  bottom: 8px;
  width: 18px;
  height: 9px;
  border-radius: 999px;
  background: var(--accent);
}

.thumb-empty {
  background: repeating-linear-gradient(
    45deg,
    #f6f7fb,
    #f6f7fb 6px,
    #eef0f6 6px,
    #eef0f6 12px
  );
  display: grid;
  place-items: center;
}

.thumb-plus {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: #fff;
  border: 1px solid var(--line);
  color: var(--muted);
}

.choice-body {
  flex: 1;
  min-width: 0;
}

.choice-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 15px;
  color: var(--ink);
}

.choice-tag {
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 2px 7px;
  border-radius: 999px;
}

.choice-sub {
  display: block;
  margin-top: 3px;
  font-size: 13px;
  color: var(--ink-2);
  line-height: 1.45;
}

.choice-go {
  flex: none;
  color: var(--muted);
  display: grid;
  place-items: center;
  transition: color 0.16s, transform 0.16s;
}

.choice:hover .choice-go {
  color: var(--brand);
  transform: translateX(2px);
}

/* Text-only card variant */
.cards-text .choice-thumb {
  display: none;
}

.modal-foot {
  margin-top: 16px;
  text-align: center;
  font-size: 12px;
  color: var(--muted);
}

/* ---------- Side notes ---------- */
.notes {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: var(--sh-1);
  padding: 18px;
}

.notes-h {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-bottom: 12px;
}

.note-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.note-list li {
  position: relative;
  padding-left: 20px;
  font-size: 13px;
  color: var(--ink-2);
  line-height: 1.5;
}

.note-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 7px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--brand);
}

.note-list strong {
  color: var(--ink);
}

.note-list code {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 12px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 1px 5px;
}

.note-foot {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--muted);
}

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  left: 50%;
  bottom: 26px;
  transform: translate(-50%, 18px);
  background: var(--ink);
  color: #fff;
  font-size: 13.5px;
  font-weight: 600;
  padding: 11px 18px;
  border-radius: 999px;
  box-shadow: var(--sh-lift);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s ease, transform 0.22s ease;
  z-index: 60;
}

.toast.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

/* ---------- Animations ---------- */
@keyframes fade {
  from {
    opacity: 0;
  }
}

@keyframes pop {
  from {
    opacity: 0;
    transform: translateY(10px) scale(0.97);
  }
}

@keyframes drop {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
}

@keyframes rowIn {
  from {
    opacity: 0;
    transform: translateY(7px);
  }
}

/* ---------- Responsive ---------- */
@media (max-width: 880px) {
  .layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .page {
    padding: 28px 14px 52px;
  }

  .switcher {
    gap: 8px;
  }

  .seg {
    width: 100%;
    justify-content: stretch;
  }

  .seg-btn {
    flex: 1;
    text-align: center;
    padding: 8px 8px;
  }

  .app-crumb {
    display: none;
  }

  .banner {
    flex-wrap: wrap;
    padding: 14px 40px 14px 14px;
  }

  .banner-actions {
    width: 100%;
  }

  .banner-actions .btn {
    flex: 1;
  }

  /* Collapse table to label/value pairs on phones */
  .board-head {
    display: none;
  }

  .row {
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "deal value"
      "meta meta";
    gap: 6px 12px;
    border: 1px solid var(--line);
    background: var(--surface);
    padding: 12px;
  }

  .row + .row {
    margin-top: 8px;
  }

  .deal-cell {
    grid-area: deal;
  }

  .value-cell {
    grid-area: value;
  }

  .row > .cell-company,
  .row > .owner-cell,
  .row > .cell-stage {
    grid-area: meta;
  }

  .cell-company {
    display: none;
  }

  .owner-cell {
    grid-area: meta;
  }

  .cell-stage {
    grid-area: meta;
    justify-self: start;
  }

  .modal {
    padding: 24px 18px 18px;
  }

  .choice {
    gap: 12px;
    padding: 12px;
  }

  .choice-thumb {
    width: 60px;
    height: 52px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}

(function () {
  "use strict";

  var overlay = document.getElementById("overlay");
  var modal = document.getElementById("modal");
  var banner = document.getElementById("banner");
  var emptyState = document.getElementById("empty-state");
  var skeleton = document.getElementById("skeleton");
  var rowsEl = document.getElementById("rows");
  var rowsBadge = document.getElementById("rows-badge");
  var clearBtn = document.getElementById("clear-btn");
  var choices = document.getElementById("choices");
  var toastEl = document.getElementById("toast");

  var variantBtns = Array.prototype.slice.call(
    document.querySelectorAll(".seg-btn[data-variant]")
  );
  var cardBtns = Array.prototype.slice.call(
    document.querySelectorAll(".seg-btn[data-cards]")
  );

  // ----- Fictional sample dataset -----
  var DEMO = [
    { deal: "Q3 Platform Upgrade", company: "Northwind Bakeries", owner: "Priya Nandakumar", stage: "proposal", value: 48000, hue: 248 },
    { deal: "Annual Renewal — Pro", company: "Halcyon Devices", owner: "Marcus Tilden", stage: "won", value: 31500, hue: 168 },
    { deal: "Pilot: Field Sync", company: "Cedar & Vale Logistics", owner: "Aisha Okonkwo", stage: "qualified", value: 12200, hue: 22 },
    { deal: "Seat Expansion (+40)", company: "Brightloom Studio", owner: "Devon Park", stage: "lead", value: 9800, hue: 320 },
    { deal: "Migration & Onboarding", company: "Tess Maritime", owner: "Priya Nandakumar", stage: "proposal", value: 27400, hue: 248 },
    { deal: "Security Add-on", company: "Quillstone Legal", owner: "Marcus Tilden", stage: "qualified", value: 15600, hue: 168 },
    { deal: "Replacement Tooling", company: "Oakmere Foundry", owner: "Aisha Okonkwo", stage: "lost", value: 22000, hue: 22 },
    { deal: "New Region Rollout", company: "Solane Health Group", owner: "Devon Park", stage: "lead", value: 64500, hue: 320 }
  ];

  var STAGE = {
    lead: { label: "Lead", cls: "chip-lead" },
    qualified: { label: "Qualified", cls: "chip-qual" },
    proposal: { label: "Proposal", cls: "chip-prop" },
    won: { label: "Won", cls: "chip-won" },
    lost: { label: "Lost", cls: "chip-lost" }
  };

  var state = {
    variant: "modal", // "modal" | "banner"
    cards: "thumb", // "thumb" | "text"
    populated: false,
    loading: false
  };
  var skeletonTimer = null;
  var lastFocus = null;

  // ----- Toast helper -----
  var toastTimer = null;
  function toast(msg) {
    toastEl.textContent = msg;
    toastEl.classList.add("is-visible");
    if (toastTimer) clearTimeout(toastTimer);
    toastTimer = setTimeout(function () {
      toastEl.classList.remove("is-visible");
    }, 2200);
  }

  function fmt(n) {
    return "$" + n.toLocaleString("en-US");
  }

  function initials(name) {
    return name
      .split(" ")
      .map(function (p) {
        return p.charAt(0);
      })
      .join("")
      .slice(0, 2)
      .toUpperCase();
  }

  function escapeHtml(s) {
    return String(s)
      .replace(/&/g, "&amp;")
      .replace(/</g, "&lt;")
      .replace(/>/g, "&gt;");
  }

  // ----- Build a populated row -----
  function rowMarkup(d, i) {
    var s = STAGE[d.stage];
    return (
      '<div class="row" role="row" style="animation-delay:' + i * 45 + 'ms">' +
      '<div class="deal-cell" role="cell">' +
      '<span class="deal-dot" style="background:hsl(' + d.hue + ' 78% 60%)"></span>' +
      '<span class="deal-name">' + escapeHtml(d.deal) + "</span>" +
      "</div>" +
      '<div class="cell-muted cell-company" role="cell">' + escapeHtml(d.company) + "</div>" +
      '<div class="owner-cell cell-owner" role="cell">' +
      '<span class="avatar" style="background:hsl(' + d.hue + ' 64% 52%)">' + initials(d.owner) + "</span>" +
      '<span class="cell-muted">' + escapeHtml(d.owner) + "</span>" +
      "</div>" +
      '<div class="cell-stage" role="cell"><span class="chip ' + s.cls + '">' + s.label + "</span></div>" +
      '<div class="value-cell num" role="cell">' + fmt(d.value) + "</div>" +
      "</div>"
    );
  }

  function updateBadge() {
    var n = state.populated ? DEMO.length : 0;
    rowsBadge.textContent = n + (n === 1 ? " deal" : " deals");
  }

  // ----- State transitions -----
  function showEmpty() {
    state.populated = false;
    state.loading = false;
    if (skeletonTimer) {
      clearTimeout(skeletonTimer);
      skeletonTimer = null;
    }
    skeleton.hidden = true;
    rowsEl.innerHTML = "";
    emptyState.hidden = false;
    clearBtn.hidden = true;
    updateBadge();
  }

  function populate() {
    state.populated = true;
    state.loading = false;
    skeleton.hidden = true;
    emptyState.hidden = true;
    rowsEl.innerHTML = DEMO.map(rowMarkup).join("");
    clearBtn.hidden = false;
    updateBadge();
  }

  function loadDemo() {
    if (state.loading || state.populated) return;
    closePrompt();
    // brief skeleton, then populated state
    state.loading = true;
    emptyState.hidden = true;
    rowsEl.innerHTML = "";
    skeleton.hidden = false;
    if (skeletonTimer) clearTimeout(skeletonTimer);
    skeletonTimer = setTimeout(function () {
      populate();
      toast("Loaded 8 example deals — explore away");
    }, 950);
  }

  function startScratch() {
    closePrompt();
    // workspace stays empty; nothing else to do
  }

  function clearDemo() {
    showEmpty();
    toast("Demo data cleared");
    // bring the prompt back so it can be re-tried
    openPrompt();
  }

  // ----- Prompt (modal or banner) -----
  function openPrompt() {
    if (state.populated) return;
    if (state.variant === "modal") {
      lastFocus = document.activeElement;
      overlay.hidden = false;
      banner.hidden = true;
      // focus first choice for keyboard users
      var first = modal.querySelector(".choice");
      if (first) first.focus();
    } else {
      banner.hidden = false;
      overlay.hidden = true;
    }
  }

  function closePrompt() {
    overlay.hidden = true;
    banner.hidden = true;
    if (lastFocus && typeof lastFocus.focus === "function") {
      lastFocus.focus();
      lastFocus = null;
    }
  }

  // Re-render the prompt for the current variant if it's currently meant to be open
  function refreshPrompt() {
    var promptOpen = !overlay.hidden || !banner.hidden;
    if (state.populated) {
      overlay.hidden = true;
      banner.hidden = true;
      return;
    }
    if (promptOpen) {
      openPrompt();
    }
  }

  // ----- Action delegation (works in modal + banner) -----
  function handleAction(action) {
    if (action === "load-demo") loadDemo();
    else if (action === "scratch") startScratch();
  }

  document.addEventListener("click", function (e) {
    var el = e.target.closest("[data-action]");
    if (el) {
      e.preventDefault();
      handleAction(el.getAttribute("data-action"));
    }
  });

  clearBtn.addEventListener("click", clearDemo);

  // Esc closes the modal overlay (treated as "start from scratch")
  document.addEventListener("keydown", function (e) {
    if (e.key === "Escape" && !overlay.hidden) {
      e.preventDefault();
      startScratch();
    }
  });

  // Focus trap inside the modal
  overlay.addEventListener("keydown", function (e) {
    if (e.key !== "Tab" || overlay.hidden) return;
    var focusables = modal.querySelectorAll(
      'button, [href], [tabindex]:not([tabindex="-1"])'
    );
    if (!focusables.length) return;
    var first = focusables[0];
    var last = focusables[focusables.length - 1];
    if (e.shiftKey && document.activeElement === first) {
      e.preventDefault();
      last.focus();
    } else if (!e.shiftKey && document.activeElement === last) {
      e.preventDefault();
      first.focus();
    }
  });

  // ----- Variant switchers -----
  function setActive(btns, attr, val) {
    btns.forEach(function (b) {
      var on = b.getAttribute(attr) === val;
      b.classList.toggle("is-active", on);
      b.setAttribute("aria-checked", on ? "true" : "false");
    });
  }

  variantBtns.forEach(function (b) {
    b.addEventListener("click", function () {
      state.variant = b.getAttribute("data-variant");
      setActive(variantBtns, "data-variant", state.variant);
      refreshPrompt();
    });
  });

  cardBtns.forEach(function (b) {
    b.addEventListener("click", function () {
      state.cards = b.getAttribute("data-cards");
      setActive(cardBtns, "data-cards", state.cards);
      choices.classList.toggle("cards-text", state.cards === "text");
    });
  });

  // ----- Init -----
  showEmpty();
  openPrompt();
})();

<!doctype html>
<html lang="en">
  <head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <title>Onboarding — Sample-data / try with demo prompt</title>
    <link rel="preconnect" href="https://fonts.googleapis.com" />
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
    <link
      href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap"
      rel="stylesheet"
    />
    <link rel="stylesheet" href="style.css" />
  </head>
  <body>
    <div class="page">
      <header class="masthead">
        <p class="kicker">Onboarding pattern</p>
        <h1 class="title">Start with sample data?</h1>
        <p class="lede">
          When a workspace is empty, a &ldquo;try with demo&rdquo; prompt lets
          people explore a populated UI before committing real work. Switch
          between a modal prompt and an inline banner, and toggle whether the
          choice cards show a preview thumbnail or text only.
        </p>

        <div class="switcher" role="group" aria-label="Demo variants">
          <div class="seg" role="radiogroup" aria-label="Prompt style">
            <button
              class="seg-btn is-active"
              type="button"
              role="radio"
              aria-checked="true"
              data-variant="modal"
            >
              Modal prompt
            </button>
            <button
              class="seg-btn"
              type="button"
              role="radio"
              aria-checked="false"
              data-variant="banner"
            >
              Inline banner
            </button>
          </div>
          <div class="seg" role="radiogroup" aria-label="Card style">
            <button
              class="seg-btn is-active"
              type="button"
              role="radio"
              aria-checked="true"
              data-cards="thumb"
            >
              Preview thumbnail
            </button>
            <button
              class="seg-btn"
              type="button"
              role="radio"
              aria-checked="false"
              data-cards="text"
            >
              Text only
            </button>
          </div>
        </div>
      </header>

      <main class="layout">
        <!-- Faux application shell -->
        <section class="app" aria-label="Sample workspace application">
          <div class="app-bar">
            <div class="app-brand">
              <span class="app-logo" aria-hidden="true">
                <svg viewBox="0 0 24 24" width="18" height="18" aria-hidden="true">
                  <path
                    d="M4 6.5A2.5 2.5 0 0 1 6.5 4h11A2.5 2.5 0 0 1 20 6.5v11a2.5 2.5 0 0 1-2.5 2.5h-11A2.5 2.5 0 0 1 4 17.5v-11Z"
                    fill="currentColor"
                    opacity=".18"
                  />
                  <path
                    d="M8 9h8M8 12.5h8M8 16h5"
                    stroke="currentColor"
                    stroke-width="1.8"
                    stroke-linecap="round"
                  />
                </svg>
              </span>
              <span class="app-name">Tarn&nbsp;CRM</span>
              <span class="app-crumb">/ Deals</span>
            </div>
            <div class="app-tools">
              <span class="rows-badge" id="rows-badge" aria-live="polite">0 deals</span>
              <button class="ghost-btn" type="button" id="clear-btn" hidden>
                <svg viewBox="0 0 24 24" width="15" height="15" aria-hidden="true">
                  <path
                    d="M6 7h12M9 7V5.5A1.5 1.5 0 0 1 10.5 4h3A1.5 1.5 0 0 1 15 5.5V7m2 0-.6 11a2 2 0 0 1-2 1.9H9.6a2 2 0 0 1-2-1.9L7 7"
                    stroke="currentColor"
                    stroke-width="1.6"
                    stroke-linecap="round"
                    stroke-linejoin="round"
                    fill="none"
                  />
                </svg>
                Clear demo data
              </button>
            </div>
          </div>

          <!-- Inline banner variant lives here, above the table -->
          <div class="banner" id="banner" role="region" aria-label="Sample data prompt" hidden>
            <span class="banner-spark" aria-hidden="true">
              <svg viewBox="0 0 24 24" width="20" height="20">
                <path
                  d="m12 3 1.9 4.6L18.5 9l-4.6 1.4L12 15l-1.9-4.6L5.5 9l4.6-1.4L12 3Z"
                  fill="currentColor"
                />
                <path d="m18 14 .9 2.3L21 17l-2.1.7L18 20l-.9-2.3L15 17l2.1-.7L18 14Z" fill="currentColor" opacity=".7" />
              </svg>
            </span>
            <div class="banner-copy">
              <p class="banner-title">This workspace is empty</p>
              <p class="banner-sub">
                Load a set of example deals to explore the board, or start
                clean and add your own.
              </p>
            </div>
            <div class="banner-actions">
              <button class="btn btn-primary" type="button" data-action="load-demo">
                Load demo data
              </button>
              <button class="btn btn-ghost" type="button" data-action="scratch">
                Start from scratch
              </button>
            </div>
            <button class="banner-x" type="button" data-action="scratch" aria-label="Dismiss prompt">
              <svg viewBox="0 0 24 24" width="16" height="16" aria-hidden="true">
                <path d="M6 6l12 12M18 6 6 18" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" />
              </svg>
            </button>
          </div>

          <!-- The table itself: empty / skeleton / populated states -->
          <div class="board">
            <div class="board-head" role="row">
              <span role="columnheader">Deal</span>
              <span role="columnheader">Company</span>
              <span role="columnheader">Owner</span>
              <span role="columnheader">Stage</span>
              <span role="columnheader" class="num">Value</span>
            </div>

            <!-- Empty state -->
            <div class="empty-state" id="empty-state">
              <span class="empty-art" aria-hidden="true">
                <svg viewBox="0 0 64 64" width="56" height="56">
                  <rect x="10" y="14" width="44" height="36" rx="6" fill="currentColor" opacity=".1" />
                  <path d="M18 26h28M18 33h28M18 40h18" stroke="currentColor" stroke-width="2.4" stroke-linecap="round" opacity=".4" />
                  <circle cx="48" cy="44" r="11" fill="var(--surface)" />
                  <circle cx="48" cy="44" r="9.5" fill="none" stroke="currentColor" stroke-width="2" />
                  <path d="M48 40v8M44 44h8" stroke="currentColor" stroke-width="2" stroke-linecap="round" />
                </svg>
              </span>
              <p class="empty-title">No deals yet</p>
              <p class="empty-sub">Your pipeline will appear here once you add deals.</p>
            </div>

            <!-- Skeleton (loading demo) -->
            <div class="skeleton" id="skeleton" hidden aria-hidden="true">
              <div class="sk-row"></div>
              <div class="sk-row"></div>
              <div class="sk-row"></div>
              <div class="sk-row"></div>
              <div class="sk-row"></div>
            </div>

            <!-- Populated rows injected here -->
            <div class="rows" id="rows" role="rowgroup"></div>
          </div>
        </section>

        <aside class="notes" aria-label="Pattern notes">
          <h2 class="notes-h">How it behaves</h2>
          <ul class="note-list">
            <li><strong>Load demo data</strong> shows a brief skeleton, then fills the board with example deals and fires a toast.</li>
            <li><strong>Start from scratch</strong> dismisses the prompt and leaves the workspace empty.</li>
            <li><strong>Clear demo data</strong> reverts to the empty state and brings the prompt back.</li>
            <li>The row counter is an <code>aria-live</code> region so the count is announced.</li>
          </ul>
          <p class="note-foot">Fictional companies &amp; figures — illustrative UI only.</p>
        </aside>
      </main>
    </div>

    <!-- Modal prompt variant -->
    <div class="overlay" id="overlay" hidden>
      <div class="backdrop" data-action="scratch"></div>
      <div
        class="modal"
        id="modal"
        role="dialog"
        aria-modal="true"
        aria-labelledby="modal-title"
        aria-describedby="modal-desc"
      >
        <button class="modal-x" type="button" data-action="scratch" aria-label="Close">
          <svg viewBox="0 0 24 24" width="18" height="18" aria-hidden="true">
            <path d="M6 6l12 12M18 6 6 18" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" />
          </svg>
        </button>

        <div class="modal-head">
          <span class="modal-spark" aria-hidden="true">
            <svg viewBox="0 0 24 24" width="22" height="22">
              <path d="m12 3 1.9 4.6L18.5 9l-4.6 1.4L12 15l-1.9-4.6L5.5 9l4.6-1.4L12 3Z" fill="currentColor" />
              <path d="m18 14 .9 2.3L21 17l-2.1.7L18 20l-.9-2.3L15 17l2.1-.7L18 14Z" fill="currentColor" opacity=".7" />
            </svg>
          </span>
          <h2 id="modal-title">Start with sample data?</h2>
          <p id="modal-desc">
            Explore Tarn CRM with a ready-made pipeline, or begin with a blank
            workspace. You can clear the demo data at any time.
          </p>
        </div>

        <div class="choices" id="choices">
          <button class="choice choice-demo" type="button" data-action="load-demo">
            <span class="choice-thumb" aria-hidden="true">
              <span class="thumb-bar"></span>
              <span class="thumb-bar w2"></span>
              <span class="thumb-bar w3"></span>
              <span class="thumb-bar"></span>
              <span class="thumb-pill"></span>
            </span>
            <span class="choice-body">
              <span class="choice-title">
                Load demo data
                <span class="choice-tag">Recommended</span>
              </span>
              <span class="choice-sub">8 example deals across every stage so you can click around right away.</span>
            </span>
            <span class="choice-go" aria-hidden="true">
              <svg viewBox="0 0 24 24" width="18" height="18"><path d="M9 6l6 6-6 6" stroke="currentColor" stroke-width="2" fill="none" stroke-linecap="round" stroke-linejoin="round" /></svg>
            </span>
          </button>

          <button class="choice choice-scratch" type="button" data-action="scratch">
            <span class="choice-thumb thumb-empty" aria-hidden="true">
              <span class="thumb-plus">
                <svg viewBox="0 0 24 24" width="22" height="22"><path d="M12 6v12M6 12h12" stroke="currentColor" stroke-width="2" stroke-linecap="round" /></svg>
              </span>
            </span>
            <span class="choice-body">
              <span class="choice-title">Start from scratch</span>
              <span class="choice-sub">Keep the workspace empty and add your own deals when you&rsquo;re ready.</span>
            </span>
            <span class="choice-go" aria-hidden="true">
              <svg viewBox="0 0 24 24" width="18" height="18"><path d="M9 6l6 6-6 6" stroke="currentColor" stroke-width="2" fill="none" stroke-linecap="round" stroke-linejoin="round" /></svg>
            </span>
          </button>
        </div>

        <p class="modal-foot">You can switch later from the workspace toolbar.</p>
      </div>
    </div>

    <div class="toast" id="toast" role="status" aria-live="polite"></div>

    <script src="script.js"></script>
  </body>
</html>

Sample-data / “try with demo” prompt

An empty workspace is the hardest moment in onboarding — there is nothing to click and nothing to learn from. This pattern meets new users with a Start with sample data? prompt offering two clear choices: Load demo data, which fills a faux Tarn CRM deals table with eight fictional example rows, or Start from scratch, which dismisses the prompt and keeps the board empty. Choosing the demo first shows a short shimmering skeleton, then animates the populated rows in and fires a toast confirming the count.

Once demo data is loaded, a Clear demo data button appears in the toolbar; clearing reverts the board to its empty state and brings the prompt back so the flow can be re-tried. The deal count lives in an aria-live region so it is announced to screen readers, the modal traps focus and closes on Esc, and every control is keyboard-usable with visible focus rings.

A segmented control at the top switches the prompt between a centered modal and an inline banner pinned above the table, and flips the choice cards between a preview thumbnail treatment and a compact text-only layout — so the demo shows each variant live. The whole layout is responsive down to 360px, collapsing the table into stacked label/value cards on narrow screens.

Illustrative UI only — fictional companies, owners, and figures.