:root {
  --tutorial-blue: #2563eb;
  --tutorial-blue-dark: #1d4ed8;
  --tutorial-ink: #172033;
  --tutorial-muted: #64748b;
  --tutorial-line: #dbe4f0;
  --tutorial-bg: #f5f8fc;
}

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--tutorial-ink);
  background:
    radial-gradient(circle at 12% 0%, rgba(37, 99, 235, 0.1), transparent 28rem),
    var(--tutorial-bg);
}

.tutorial-site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 64px;
  padding: 0 5vw;
  border-bottom: 1px solid rgba(219, 228, 240, 0.9);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(16px);
  box-shadow: 0 8px 30px rgba(15, 23, 42, 0.05);
}

.tutorial-site-nav a {
  color: #334155;
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
}

.tutorial-site-nav a:hover { color: var(--tutorial-blue); }

.tutorial-site-nav .tutorial-brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: #0f172a;
  font-size: 18px;
  font-weight: 800;
  white-space: nowrap;
}

.tutorial-site-nav .tutorial-brand img {
  width: 32px;
  height: 32px;
  flex: 0 0 32px;
}

.tutorial-site-nav > div {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 22px;
  flex-wrap: wrap;
}

.tutorial-site-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  flex-wrap: wrap;
  padding: 30px 20px;
  color: #64748b;
  border-top: 1px solid var(--tutorial-line);
  background: #fff;
}

.tutorial-site-footer a {
  color: #475569;
  text-decoration: none;
  font-weight: 600;
}

.tutorial-site-footer a:hover { color: var(--tutorial-blue); }

.container {
  width: min(100% - 32px, 980px) !important;
  max-width: 980px !important;
  margin: 34px auto !important;
}

.container .header {
  border-radius: 18px;
}

.container .content a:not(.cta-button),
.container .related-articles a {
  text-underline-offset: 3px;
}

.container code {
  overflow-wrap: anywhere;
  padding: 2px 6px;
  border-radius: 6px;
  color: #1e40af;
  background: #eff6ff;
}

.tutorial-home {
  width: min(100% - 32px, 1160px);
  margin: 0 auto;
  padding: 56px 0 72px;
}

.tutorial-hero {
  padding: 64px clamp(24px, 6vw, 72px);
  color: #fff;
  border-radius: 28px;
  background:
    linear-gradient(135deg, rgba(15, 23, 42, 0.08), rgba(15, 23, 42, 0.4)),
    linear-gradient(135deg, #2563eb, #0f3f91);
  box-shadow: 0 24px 70px rgba(37, 99, 235, 0.22);
}

.tutorial-eyebrow {
  display: inline-flex;
  padding: 7px 12px;
  border: 1px solid rgba(255, 255, 255, 0.26);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  font-size: 13px;
  font-weight: 700;
}

.tutorial-hero h1 {
  max-width: 780px;
  margin: 20px 0 16px;
  font-size: clamp(34px, 6vw, 58px);
  line-height: 1.08;
  letter-spacing: -0.035em;
}

.tutorial-hero p {
  max-width: 760px;
  margin: 0;
  color: #dbeafe;
  font-size: 17px;
  line-height: 1.85;
}

.tutorial-section { margin-top: 54px; }

.tutorial-section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 22px;
}

.tutorial-section-heading h2 {
  margin: 0;
  font-size: clamp(26px, 4vw, 36px);
}

.tutorial-section-heading p {
  max-width: 560px;
  margin: 0;
  color: var(--tutorial-muted);
  line-height: 1.7;
}

.tutorial-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.tutorial-card {
  display: flex;
  flex-direction: column;
  min-height: 250px;
  padding: 28px;
  border: 1px solid var(--tutorial-line);
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.06);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.tutorial-card:hover {
  transform: translateY(-4px);
  border-color: #93c5fd;
  box-shadow: 0 18px 44px rgba(37, 99, 235, 0.12);
}

.tutorial-tag {
  align-self: flex-start;
  padding: 6px 10px;
  color: #1d4ed8;
  border-radius: 999px;
  background: #eff6ff;
  font-size: 12px;
  font-weight: 800;
}

.tutorial-card h2 {
  margin: 18px 0 12px;
  font-size: 22px;
  line-height: 1.45;
}

.tutorial-card p {
  margin: 0 0 22px;
  color: var(--tutorial-muted);
  line-height: 1.75;
}

.tutorial-card a {
  margin-top: auto;
  color: var(--tutorial-blue);
  text-decoration: none;
  font-weight: 800;
}

.tutorial-answer,
.tutorial-faq {
  padding: 30px;
  border: 1px solid var(--tutorial-line);
  border-radius: 18px;
  background: #fff;
}

.tutorial-answer p,
.tutorial-faq p {
  color: #475569;
  line-height: 1.85;
}

.tutorial-faq h3 { margin: 24px 0 8px; }

@media (max-width: 760px) {
  .tutorial-site-nav {
    position: static;
    align-items: flex-start;
    flex-direction: column;
    padding: 16px 20px;
  }

  .tutorial-site-nav > div {
    justify-content: flex-start;
    gap: 12px 18px;
  }

  .tutorial-home { padding-top: 28px; }
  .tutorial-hero { padding: 42px 24px; border-radius: 20px; }
  .tutorial-section-heading { align-items: flex-start; flex-direction: column; }
  .tutorial-card-grid { grid-template-columns: 1fr; }
  .container { width: min(100% - 24px, 980px) !important; padding: 24px 18px !important; }
}