.article-interactive {
  --interactive-accent: var(--color-primary, #2d7a5f);
  --interactive-surface: color-mix(in srgb, var(--bg-surface, #fff) 94%, var(--interactive-accent) 6%);
  --interactive-muted: color-mix(in srgb, var(--bg-muted, #f3f1ed) 90%, var(--interactive-accent) 10%);
  --interactive-border: color-mix(in srgb, var(--border-color, #e4e0d8) 78%, var(--interactive-accent) 22%);
  width: min(100%, 860px);
  margin: clamp(2rem, 6vw, 4.5rem) auto;
  overflow: hidden;
  border: 1px solid var(--interactive-border);
  border-radius: 22px;
  background: var(--interactive-surface);
  box-shadow: 0 22px 64px rgba(31, 51, 43, .1);
  color: var(--text-primary, #1a1a1a);
  font-family: var(--font-sans, sans-serif);
}
.article-interactive__fallback { padding: 22px 24px; color: var(--text-secondary, #555); font-family: var(--font-sans, sans-serif); line-height: 1.7; white-space: pre-wrap; overflow-wrap: anywhere; }
.article-interactive__mount:empty { display: none; }
.article-interactive.is-hydrated > .article-interactive__fallback { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.article-interactive[data-interactive-error="true"] { border-color: #b7791f; }
.article-interactive[data-component="callout"],
.article-interactive--callout {
  overflow: visible;
  border: 0 !important;
  border-radius: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
}
.interactive-heading { display: grid; gap: 7px; padding: clamp(22px, 4vw, 34px) clamp(20px, 4vw, 36px) 18px; border-bottom: 1px solid var(--interactive-border); }
.interactive-heading h3 { margin: 0; color: var(--text-primary, #1a1a1a); font: 700 clamp(1.25rem, 3vw, 1.7rem)/1.25 var(--font-serif, serif); }
.interactive-heading p { max-width: 64ch; margin: 0; color: var(--text-secondary, #555); font-size: .95rem; line-height: 1.7; }
.interactive-kicker { color: var(--interactive-accent); font: 700 .7rem/1.2 var(--font-mono, monospace); letter-spacing: .13em; }
.interactive-callout {
  --callout-accent: #087f3e;
  --callout-surface: #edf8f3;
  position: relative;
  display: block;
  width: min(100%, 900px);
  min-height: 142px;
  margin: clamp(2.2rem, 5vw, 3.6rem) auto;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--text-primary, #12161b);
  overflow: visible;
}
.interactive-callout__rail {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 1;
  display: flex;
  width: 28.5px;
  height: 100%;
  flex-direction: column;
  pointer-events: none;
  transform: translateX(-3px);
}
.interactive-callout__curve {
  display: block;
  width: 28.5px;
  height: 34.5px;
  flex: 0 0 34.5px;
  margin-top: -.5px;
  overflow: visible;
}
.interactive-callout__rail-line {
  width: 3px;
  min-height: 0;
  flex: 1 1 auto;
  margin-top: -1px;
  border-radius: 0 0 100px 100px;
  background: var(--callout-accent);
}
.interactive-callout__icon {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 2;
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  padding: 8px;
  background: transparent;
  color: var(--callout-accent);
  transform: translate(calc(-50% - 1.5px), -50%);
}
.interactive-callout__icon-svg { display: block; width: 32px; height: 32px; overflow: visible; }
.interactive-callout__icon-path { vector-effect: non-scaling-stroke; }
.interactive-callout__panel {
  min-width: 0;
  min-height: 142px;
  padding: 28px 32px 28px 29px;
  border-radius: 0 7px 7px 0;
  background: var(--callout-surface);
}
.interactive-callout strong { display: block; margin: 0 0 13px; color: var(--text-primary, #12161b); font-size: 1.04rem; line-height: 1.3; }
.interactive-callout p { margin: 0; color: var(--text-primary, #12161b); line-height: 1.75; }
.interactive-callout--info { --callout-accent: #087f3e; --callout-surface: #edf8f3; }
.interactive-callout--warning { --callout-accent: #f28a00; --callout-surface: #fff6cf; }
.interactive-callout--success { --callout-accent: #087f3e; --callout-surface: #edf8f3; }
.interactive-callout--question { --callout-accent: #4c3cff; --callout-surface: #eaf2ff; }
[data-effective-theme="dark"] .interactive-callout--info,
[data-effective-theme="dark"] .interactive-callout--success {
  --callout-accent: #38c77b;
  --callout-surface: #102a20;
}
[data-effective-theme="dark"] .interactive-callout--warning {
  --callout-accent: #f3a425;
  --callout-surface: #362a0d;
}
[data-effective-theme="dark"] .interactive-callout--question {
  --callout-accent: #9388ff;
  --callout-surface: #1c2045;
}
[data-effective-theme="dark"] .interactive-callout { color: var(--text-primary, #f3f4f2); }
[data-effective-theme="dark"] .interactive-callout strong,
[data-effective-theme="dark"] .interactive-callout p { color: var(--text-primary, #f3f4f2); }
[data-effective-theme="dark"] .interactive-callout__icon { background: transparent; }

.interactive-tabs { display: flex; gap: 6px; padding: 16px 20px 0; overflow-x: auto; }
.interactive-tab { min-height: 44px; padding: 9px 14px; border: 1px solid transparent; border-radius: 10px 10px 0 0; background: transparent; color: var(--text-secondary, #555); font-weight: 650; white-space: nowrap; }
.interactive-tab[aria-selected="true"] { border-color: var(--interactive-border); border-bottom-color: var(--bg-code, #222226); background: var(--bg-code, #222226); color: #f4f5f6; }
.interactive-tab:focus-visible, .interactive-accordion-trigger:focus-visible, .interactive-step-dot:focus-visible, .article-interactive input:focus-visible { outline: 2px solid var(--interactive-accent); outline-offset: 3px; }
.article-interactive .interactive-code-panel { margin: 0; border-radius: 0; }
.article-interactive .interactive-code-panel code { display: block; min-height: 92px; padding: 24px; white-space: pre-wrap; }
.interactive-accordion { display: grid; padding: 10px 24px 24px; }
.interactive-accordion-item { border-bottom: 1px solid var(--interactive-border); }
.interactive-accordion-trigger { display: flex; width: 100%; min-height: 52px; align-items: center; justify-content: space-between; gap: 16px; padding: 13px 4px; border: 0; background: transparent; color: var(--text-primary, #1a1a1a); font-weight: 700; text-align: left; }
.interactive-accordion-trigger span { color: var(--interactive-accent); font-size: 1.3rem; }
.interactive-accordion-panel { padding: 0 4px 20px; color: var(--text-secondary, #555); line-height: 1.75; }
.interactive-step-progress { display: flex; gap: 8px; padding: 22px clamp(20px, 4vw, 36px) 0; }
.interactive-step-dot { width: 44px; min-width: 44px; height: 44px; border: 1px solid var(--interactive-border); border-radius: 50%; background: var(--bg-surface, #fff); color: var(--text-secondary, #555); }
.interactive-step-dot[aria-current="step"] { border-color: var(--interactive-accent); background: var(--interactive-accent); color: #fff; }
.interactive-step-viewport { position: relative; min-height: 190px; padding: 28px clamp(22px, 5vw, 44px) 34px 94px; }
.interactive-step-number { position: absolute; left: 28px; top: 25px; color: color-mix(in srgb, var(--interactive-accent) 28%, transparent); font: 800 2.4rem/1 var(--font-mono, monospace); }
.interactive-step-viewport h4 { margin: 0 0 10px; font-size: 1.15rem; }
.interactive-step-viewport p { margin: 0; color: var(--text-secondary, #555); line-height: 1.8; }
.interactive-compare { --compare-position: 50%; position: relative; display: grid; grid-template-columns: var(--compare-position) calc(100% - var(--compare-position)); min-height: 260px; overflow: hidden; }
.interactive-compare-side { min-width: 0; padding: 34px; }
.interactive-compare-side strong { display: block; margin-bottom: 12px; color: var(--interactive-accent); }
.interactive-compare-side p { margin: 0; color: var(--text-secondary, #555); line-height: 1.8; }
.interactive-compare-left { background: var(--bg-surface, #fff); }
.interactive-compare-right { background: var(--interactive-muted); }
.interactive-compare input { position: absolute; inset: auto 8% 22px; width: 84%; accent-color: var(--interactive-accent); }
.interactive-playground { display: grid; grid-template-columns: minmax(220px, .72fr) minmax(0, 1.28fr); min-height: 420px; }
.interactive-controls { display: grid; align-content: start; gap: 20px; padding: clamp(22px, 4vw, 34px); border-right: 1px solid var(--interactive-border); }
.interactive-control { display: grid; gap: 9px; }
.interactive-control-label { display: flex; justify-content: space-between; gap: 16px; color: var(--text-secondary, #555); font-size: .83rem; }
.interactive-control output { color: var(--interactive-accent); font-family: var(--font-mono, monospace); font-weight: 700; }
.article-interactive input[type="range"] { width: 100%; min-height: 30px; accent-color: var(--interactive-accent); }
.interactive-playground-experience { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(210px, .95fr); min-width: 0; }
.interactive-playground-experience > .interactive-stage:only-child { grid-column: 1 / -1; }
.interactive-stage { display: grid; place-items: center; align-content: center; gap: 28px; min-width: 0; padding: clamp(34px, 6vw, 60px) clamp(22px, 4vw, 40px); background: radial-gradient(circle at 50% 20%, color-mix(in srgb, var(--interactive-accent) 12%, transparent), transparent 55%), var(--interactive-muted); }
.interactive-preview-card { display: grid; width: min(100%, 300px); min-height: 190px; align-content: center; gap: 8px; padding: 32px; border: 1px solid color-mix(in srgb, var(--interactive-border) 75%, transparent); background: var(--bg-surface, #fff); transform: translateZ(0); transition: transform .28s cubic-bezier(.16, 1, .3, 1); }
.interactive-preview-card.is-updated { transform: translateY(-3px); }
.interactive-preview-card strong { font: 700 1.45rem/1.3 var(--font-serif, serif); }
.interactive-preview-card small { color: var(--text-secondary, #555); line-height: 1.6; }
.interactive-preview-kicker { color: var(--interactive-accent); font: 700 .68rem/1.2 var(--font-mono, monospace); letter-spacing: .12em; }
.interactive-css-output { display: block; width: min(100%, 420px); padding: 16px 18px; border-radius: 12px; background: var(--bg-code, #222226); color: #f0f5f2; font: .78rem/1.7 var(--font-mono, monospace); white-space: pre-wrap; overflow-wrap: anywhere; }
.interactive-explanation { display: grid; align-content: center; min-width: 0; gap: 12px; padding: clamp(28px, 5vw, 48px) clamp(22px, 4vw, 38px); border-left: 1px solid var(--interactive-border); background: color-mix(in srgb, var(--bg-surface, #fff) 88%, var(--interactive-accent) 12%); }
.interactive-explanation-label { color: var(--interactive-accent); font: 750 .68rem/1.2 var(--font-mono, monospace); letter-spacing: .13em; }
.interactive-explanation h4 { margin: 0; color: var(--text-primary, #1a1a1a); font: 700 clamp(1.05rem, 2.2vw, 1.35rem)/1.35 var(--font-serif, serif); overflow-wrap: anywhere; }
.interactive-explanation p { margin: 0; color: var(--text-secondary, #555); font-size: .9rem; line-height: 1.75; overflow-wrap: anywhere; }
.interactive-explanation-points { display: grid; gap: 9px; margin: 4px 0 0; padding: 0; list-style: none; }
.interactive-explanation-points li { position: relative; padding-left: 18px; color: var(--text-secondary, #555); font-size: .84rem; line-height: 1.65; overflow-wrap: anywhere; }
.interactive-explanation-points li::before { content: ''; position: absolute; left: 0; top: .62em; width: 6px; height: 6px; border-radius: 50%; background: var(--interactive-accent); }
@media (max-width: 680px) {
  .article-interactive { margin: 2rem 0; border-radius: 16px; }
  .article-interactive[data-component="callout"],
  .article-interactive--callout { width: calc(100% - 18px); margin-left: 18px; }
  .interactive-callout { min-height: 132px; }
  .interactive-callout__panel { min-height: 132px; padding: 24px 18px 24px 23px; }
  .interactive-callout__icon { width: 44px; height: 44px; padding: 7px; }
  .interactive-callout__icon-svg { width: 30px; height: 30px; }
  .interactive-playground { grid-template-columns: 1fr; }
  .interactive-controls { border-right: 0; border-bottom: 1px solid var(--interactive-border); }
  .interactive-playground-experience { grid-template-columns: 1fr; }
  .interactive-stage { min-height: 360px; }
  .interactive-explanation { border-top: 1px solid var(--interactive-border); border-left: 0; }
  .interactive-compare { grid-template-columns: 1fr; padding-bottom: 62px; }
  .interactive-compare input { bottom: 18px; }
  .interactive-step-viewport { padding-left: 76px; }
  .interactive-step-number { left: 22px; }
}
@media (prefers-reduced-motion: reduce) {
  .article-interactive *, .article-interactive *::before, .article-interactive *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
  .interactive-preview-card.is-updated { transform: none; }
}