:root {
  --ink: #171717;
  /* Neutral 900 */
  --ink-strong: #0a0a0a;
  /* Neutral 950 */
  --muted: #525252;
  /* Neutral 600 */
  --muted-2: #404040;
  /* Neutral 700 */
  --bg: #ffffff;
  --surface: #ffffff;
  --surface-2: #fafafa;
  /* Neutral 50 */
  --border: #e5e5e5;
  /* Neutral 200 */
  --accent: #171717;
  /* Primary brand color (Black) */
  --accent-2: #2563eb;
  /* Link color */
  --accent-soft: #f5f5f5;
  /* Neutral 100 */
  --radius: 0.625rem;
  --max-width: 1160px;
  --mono: "JetBrains Mono", "Menlo", "SFMono-Regular", monospace;
  --sans: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
}

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

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  min-height: 100vh;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--ink);
  font-weight: 500;
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: #000;
}

img {
  max-width: 100%;
  display: block;
}

header {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 20;
}

.top-bar {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 700;
  letter-spacing: -0.01em;
  text-decoration: none;
}

.brand img {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  border: 1px solid var(--border);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 14px;
  color: var(--muted);
}

.nav-links a {
  color: var(--muted);
  font-weight: 600;
}

.nav-links a:hover {
  color: var(--ink);
  text-decoration: none;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: #eef2ff;
  color: var(--muted-2);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.pill .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-2);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.15);
}

.hero {
  max-width: var(--max-width);
  margin: 30px auto 24px;
  padding: 24px 20px 12px;
}

.hero h1 {
  margin: 10px 0 14px;
  font-size: 38px;
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.hero p {
  max-width: 820px;
  color: var(--muted);
  font-size: 17px;
}

.calendar {
  display: inline-flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 14px;
}

.calendar .chip {
  padding: 8px 12px;
  border-radius: 12px;
  background: rgba(15, 118, 110, 0.1);
  color: var(--ink-strong);
  font-weight: 600;
  font-size: 13px;
  border: 1px solid rgba(15, 118, 110, 0.1);
}

.calendar .chip strong {
  color: var(--accent);
}

.page {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px 40px;
}

.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.post-card {
  background: var(--surface);
  border: 1px solid rgba(15, 23, 42, 0.06);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: 0 10px 32px rgba(15, 23, 42, 0.04);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.post-card h2 {
  margin: 0;
  font-size: 20px;
  letter-spacing: -0.01em;
}

.post-card p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.meta-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 13px;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  background: rgba(37, 99, 235, 0.08);
  color: var(--ink-strong);
  border-radius: 10px;
  font-weight: 600;
  font-size: 13px;
  border: 1px solid rgba(37, 99, 235, 0.16);
}

.page article {
  background: var(--surface);
  padding: 28px;
  border-radius: var(--radius);
  border: 1px solid rgba(15, 23, 42, 0.06);
  box-shadow: 0 12px 36px rgba(15, 23, 42, 0.05);
  margin-top: 20px;
}

article h1 {
  margin: 0 0 6px;
  font-size: 36px;
  letter-spacing: -0.02em;
}

article h2 {
  margin: 26px 0 10px;
  font-size: 24px;
  letter-spacing: -0.01em;
}

article h3 {
  margin: 18px 0 8px;
  font-size: 18px;
}

article p {
  margin: 10px 0;
  color: var(--ink);
}

article ul {
  margin: 10px 0 14px 20px;
  color: var(--muted-2);
}

article li+li {
  margin-top: 6px;
}

.byline {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--muted);
  font-size: 14px;
  margin: 0 0 12px;
  flex-wrap: wrap;
}

.byline span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.lede {
  font-size: 17px;
  color: var(--muted-2);
  margin: 12px 0 16px;
}

.evidence-block,
.screenshot-placeholder {
  margin: 16px 0;
  padding: 14px;
  border: 1.5px solid rgba(15, 118, 110, 0.5);
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(220, 252, 231, 0.4), rgba(219, 234, 254, 0.35));
  color: var(--muted-2);
  font-weight: 600;
}

.evidence-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(15, 118, 110, 0.12);
  color: var(--ink-strong);
  font-size: 12px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.evidence-block pre {
  margin: 10px 0 6px;
  padding: 12px;
  background: #0b1220;
  color: #e5e7eb;
  border-radius: 12px;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.5;
  overflow-x: auto;
  box-shadow: inset 0 0 0 1px rgba(226, 232, 240, 0.08);
}

.evidence-caption {
  margin: 6px 0 2px;
  color: var(--muted);
  font-weight: 500;
  font-size: 14px;
}

.callout {
  border-left: 4px solid var(--accent);
  background: rgba(15, 118, 110, 0.08);
  padding: 12px 14px;
  border-radius: 12px;
  color: var(--muted-2);
}

.copy-box {
  margin: 14px 0;
  background: #0b1220;
  color: #e5e7eb;
  border-radius: 12px;
  padding: 14px;
  font-family: var(--mono);
  font-size: 14px;
  overflow-x: auto;
  box-shadow: inset 0 0 0 1px rgba(226, 232, 240, 0.08);
}

.copy-box strong {
  color: #e0f2fe;
}

.avoid-list {
  list-style: "– ";
  padding-left: 18px;
}

.troubleshoot {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0 6px;
  font-size: 14px;
}

.troubleshoot th,
.troubleshoot td {
  border: 1px solid rgba(15, 23, 42, 0.08);
  padding: 10px;
  text-align: left;
}

.troubleshoot th {
  background: #f1f5f9;
  color: var(--muted-2);
}

.faq {
  border-top: 1px solid rgba(15, 23, 42, 0.08);
  margin-top: 18px;
  padding-top: 16px;
}

.faq-item+.faq-item {
  margin-top: 12px;
}

.faq-item h3 {
  margin: 0 0 6px;
}

.related {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 14px 0;
}

.related a {
  padding: 8px 12px;
  background: rgba(37, 99, 235, 0.08);
  border-radius: 10px;
  color: var(--ink-strong);
  border: 1px solid rgba(37, 99, 235, 0.16);
}

.cta {
  margin: 20px 0 8px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 16px;
  height: 40px;
  background: var(--ink);
  color: #fff;
  border-radius: 6px;
  font-weight: 500;
  font-size: 14px;
  text-decoration: none;
  transition: opacity 0.2s;
}

.cta:hover {
  text-decoration: none;
  opacity: 0.9;
  color: #fff;
  transform: none;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(15, 118, 110, 0.1);
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

footer {
  padding: 24px 0 30px;
  color: var(--muted);
  font-size: 14px;
}

footer .page {
  border-top: 1px solid rgba(15, 23, 42, 0.06);
  padding-top: 20px;
}

@media (max-width: 720px) {
  .top-bar {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav-links {
    flex-wrap: wrap;
  }

  .hero h1 {
    font-size: 30px;
  }

  .page article {
    padding: 18px;
  }

  article h1 {
    font-size: 28px;
  }

  .byline {
    gap: 8px;
  }
}