/* Long-form reading pages: ruled notebook paper, hero title, step accents */

.sd-article {
  --sd-step-color: #6b2518;
  --sd-step-label-color: #8f2a1e;
  max-width: min(960px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 24px clamp(16px, 4vw, 32px) 64px;
  position: relative;
  z-index: 1;
}

body:not(.site-hub--magazine) .sd-article {
  --sd-step-color: #f0b48a;
  --sd-step-label-color: #ffc9a8;
}

html[data-hp-theme="light"] body:not(.site-hub--magazine) .sd-article {
  --sd-step-color: #6b2518;
  --sd-step-label-color: #8f2a1e;
}

/* Breadcrumb sits above paper; align with notebook content column */
.sd-article > .sd-hub__crumb {
  margin-bottom: 18px;
  padding-left: clamp(56px, 6vw, 68px);
  padding-right: clamp(24px, 5vw, 48px);
}

.sd-article__paper {
  background-color: #f7f3ec;
  background-image:
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 31px,
      rgba(160, 140, 120, 0.12) 31px,
      rgba(160, 140, 120, 0.12) 32px
    ),
    linear-gradient(
      90deg,
      transparent 48px,
      rgba(192, 40, 26, 0.15) 48px,
      rgba(192, 40, 26, 0.15) 50px,
      transparent 50px
    );
  background-attachment: local;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: clamp(28px, 4vw, 44px) clamp(24px, 5vw, 48px) 40px clamp(56px, 6vw, 68px);
  box-shadow: 0 10px 36px rgba(26, 22, 18, 0.06);
}

.sd-article__hero {
  background-color: #f7f3ec;
  background-image: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 31px,
    rgba(160, 140, 120, 0.12) 31px,
    rgba(160, 140, 120, 0.12) 32px
  );
  background-attachment: local;
  border: 1px solid var(--border);
  border-top: 3px solid rgba(192, 40, 26, 0.45);
  border-radius: 12px;
  padding: clamp(20px, 3vw, 28px) clamp(22px, 3.5vw, 28px);
  margin: 0 0 22px;
  box-shadow: 0 4px 18px rgba(26, 22, 18, 0.06);
}

.sd-article__hero h1 {
  font-family: "Syne", system-ui, sans-serif;
  font-size: clamp(1.65rem, 4vw, 2.15rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0;
  color: var(--text);
}

.sd-article .lede {
  font-size: 15px;
  color: var(--text);
  line-height: 1.75;
  margin-bottom: 14px;
}

.sd-article .takeaways {
  margin: 0 0 22px 1.1em;
  padding: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.sd-article .takeaways li {
  margin-bottom: 6px;
}

.sd-article h2 {
  font-family: "Syne", system-ui, sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  margin: 36px 0 12px;
  letter-spacing: -0.02em;
  color: var(--text);
}

.sd-article__paper > h2.sd-step {
  color: var(--sd-step-color);
}

.sd-article h3 {
  font-size: 0.95rem;
  font-weight: 700;
  margin: 22px 0 10px;
  color: var(--text);
}

.sd-article p,
.sd-article li {
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
  margin: 0 0 12px;
}

.sd-article ul,
.sd-article ol {
  margin: 0 0 16px 1.15em;
  padding: 0;
}

.sd-article ol.steps {
  margin-left: 1.25em;
  padding-left: 0;
}

.sd-article ol.steps li {
  margin-bottom: 10px;
}

.sd-article h4.step-label {
  font-family: "Syne", system-ui, sans-serif;
  font-size: 1rem;
  font-weight: 700;
  margin: 28px 0 8px;
  color: var(--sd-step-label-color);
  letter-spacing: -0.01em;
}

.sd-article p.step-file {
  font-size: 13px;
  color: var(--muted);
  margin: 0 0 8px;
}

.sd-article .note-box {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 16px;
  margin: 18px 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.sd-article .note-box p {
  margin: 0 0 8px;
  font-size: 13px;
}

.sd-article .note-box p:last-child {
  margin-bottom: 0;
}

.sd-article .note-box strong {
  color: var(--text);
}

.sd-article .exp-box {
  background: rgba(36, 150, 237, 0.08);
  border: 1px solid rgba(36, 150, 237, 0.35);
  border-radius: 12px;
  padding: 16px 18px;
  margin: 18px 0;
}

.sd-article .exp-box p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.7;
}

.sd-article .exp-box p:last-child {
  margin-bottom: 0;
}

.sd-article .answer-box {
  background: rgba(26, 61, 107, 0.08);
  border: 1px solid rgba(26, 61, 107, 0.35);
  border-radius: 12px;
  padding: 16px 18px;
  margin: 18px 0;
}

.sd-article .answer-box p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.7;
}

.sd-article .answer-box p:last-child {
  margin-bottom: 0;
}

.sd-article .prompt-box {
  background: #0f1419;
  border: 1px solid rgba(123, 140, 255, 0.4);
  border-radius: 12px;
  padding: 18px 20px;
  margin: 20px 0 28px;
  color: #f5f2eb;
}

.sd-article .prompt-box__label {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #a8b4ff;
  margin-bottom: 12px;
}

.sd-article .prompt-box p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.7;
  color: #f5f2eb;
}

.sd-article .prompt-box p:last-child {
  margin-bottom: 0;
}

.sd-article .prompt-box strong {
  color: #c7d0ff;
  font-weight: 700;
}

.sd-article .api-block {
  margin: 12px 0 18px;
  padding: 12px 14px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  font-size: 14px;
}

.sd-article .api-block p {
  margin-bottom: 8px;
}

.sd-article code {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.88em;
  color: var(--text);
  background: color-mix(in srgb, var(--accent2, #7b8cff) 12%, var(--card));
  padding: 0.12em 0.35em;
  border-radius: 4px;
  border: 1px solid color-mix(in srgb, var(--accent2, #7b8cff) 28%, var(--border));
}

.sd-article pre code,
.sd-article pre.tech code,
.sd-article .code-sample pre code {
  color: inherit;
  background: transparent;
  border: none;
  padding: 0;
  border-radius: 0;
}

.sd-article pre.tech {
  margin: 18px 0;
  padding: 14px 16px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow-x: auto;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--text);
}

.sd-article table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  margin: 14px 0 20px;
}

.sd-article th,
.sd-article td {
  border: 1px solid var(--border);
  padding: 9px 11px;
  text-align: left;
  vertical-align: top;
}

.sd-article th {
  background: rgba(26, 61, 107, 0.08);
  font-weight: 700;
}

.sd-article figure.do-figure {
  margin: 22px 0;
  padding: 14px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.sd-article figure.do-figure img,
.sd-article figure.do-figure object {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  background: var(--diagram-canvas, #f7f3ec);
  border-radius: 8px;
}

.sd-article figure.do-figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.55;
  color: var(--muted);
  text-align: center;
}

body:not(.site-hub--magazine) .sd-article figure.do-figure figcaption {
  color: color-mix(in srgb, var(--text) 78%, var(--muted));
}

/* DevOps article footer: hub/prev links left, “Next” link right */
.sd-article__nav-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px 20px;
  margin-top: 2rem;
  font-size: 14px;
  line-height: 1.6;
}

.sd-article__nav-footer .sd-article__nav-links {
  flex: 1 1 auto;
  min-width: min(100%, 280px);
}

/* Production / system-design: “Next” nested inside nav-links */
.sd-article__nav-footer .sd-article__nav-links:has(.sd-article__nav-next) {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px 20px;
  flex: 1 1 100%;
  width: 100%;
  min-width: 0;
}

.sd-article__nav-footer .sd-article__nav-links .sd-article__nav-next {
  margin-left: auto;
  text-align: right;
  white-space: nowrap;
  flex: 0 0 auto;
}

.sd-article__nav-footer .sd-article__nav-next {
  flex: 0 0 auto;
  margin-left: auto;
  text-align: right;
  white-space: nowrap;
}