/* Page-owned styles for Beginner's Guide */

.beginners-guide-main {
  min-width: 0;
}

.bg-section {
  padding-block: var(--space-3xl);
  border-block-end: 1px solid var(--color-conveyor-line);
}

.bg-section:last-child {
  border-block-end: none;
}

/* Section 1: Guide Introduction */
.bg-intro-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--space-xl);
  align-items: start;
}

.bg-intro-title-block {
  grid-column: 1 / span 7;
  min-width: 0;
}

.bg-intro-lead {
  max-width: 65ch;
  margin-block-end: 0;
}

.bg-lab-panel {
  grid-column: 8 / span 5;
  min-width: 0;
}

.bg-lab-panel .label {
  margin-block-end: var(--space-sm);
}

/* Section 2: What Is Pixel Flow Burst? */
.bg-what-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--space-xl);
  align-items: start;
}

.bg-what-text {
  grid-column: 1 / span 7;
  min-width: 0;
}

.bg-what-text p {
  max-width: 68ch;
}

.bg-what-list {
  max-width: 68ch;
}

.bg-verified-panel {
  grid-column: 8 / span 5;
  min-width: 0;
}

.bg-verified-panel .label {
  margin-block-end: var(--space-sm);
}

.bg-fact-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-sm) var(--space-md);
  margin: 0;
}

.bg-fact-item {
  min-width: 0;
}

.bg-fact-item dt {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--text-body-small-size);
  line-height: var(--text-body-small-line-height);
  color: var(--color-graphite);
  margin-block-end: var(--space-2xs);
}

.bg-fact-item dd {
  margin: 0;
  font-size: var(--text-body-small-size);
  line-height: var(--text-body-small-line-height);
  color: var(--color-graphite-soft);
  overflow-wrap: break-word;
}

/* Section 3: Getting Started */
.bg-start-wrap {
  max-width: 800px;
}

.bg-step-list {
  list-style: none;
  padding-inline-start: 0;
  margin-block-end: var(--space-xl);
  display: grid;
  gap: var(--space-md);
}

.bg-step-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  max-width: 65ch;
  min-width: 0;
}

.bg-step-number {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: 1px solid var(--color-electric-blue);
  border-radius: var(--radius-panel);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--text-body-small-size);
  line-height: 1;
  color: var(--color-electric-blue);
}

.bg-cta {
  min-width: 220px;
}

/* Section 4: Core Puzzle Mechanics */
.bg-mechanics-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--space-xl);
  align-items: start;
}

.bg-mechanics-text {
  grid-column: 1 / span 7;
  min-width: 0;
}

.bg-mechanics-text p {
  max-width: 68ch;
}

.bg-strategy-panel {
  grid-column: 8 / span 5;
  min-width: 0;
}

.bg-strategy-panel .label {
  margin-block-end: var(--space-sm);
}

/* Section 5: Beginner Tips */
.bg-tips-wrap {
  min-width: 0;
}

.bg-tips-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: var(--space-md);
  margin-block-start: var(--space-lg);
}

.bg-tip-panel {
  min-width: 0;
  background-color: var(--color-surface);
  border: var(--border-panel);
  border-inline-start: 4px solid var(--color-lime);
  border-radius: var(--radius-panel);
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.bg-tip-panel h3 {
  font-size: var(--text-h4-size);
  line-height: var(--text-h4-line-height);
  margin-block-end: 0;
}

.bg-tip-panel p {
  font-size: var(--text-body-small-size);
  line-height: var(--text-body-small-line-height);
  max-width: 40ch;
  margin-block-end: 0;
}

/* Section 6: Common Mistakes */
.bg-mistakes-wrap {
  max-width: 800px;
}

.bg-mistake-list {
  list-style: none;
  padding-inline-start: 0;
  margin-block-end: 0;
  display: grid;
  gap: var(--space-sm);
}

.bg-mistake-list li {
  position: relative;
  padding-inline-start: var(--space-lg);
  max-width: 65ch;
  min-width: 0;
}

.bg-mistake-list li::before {
  content: '';
  position: absolute;
  inset-inline-start: 0;
  inset-block-start: 0.5em;
  width: 8px;
  height: 8px;
  background-color: var(--color-coral);
  border-radius: 1px;
}

/* Section 7: Next Steps */
.bg-next-wrap {
  max-width: 68ch;
}

.bg-next-wrap p {
  margin-block-end: 0;
}

/* Section 8: Final Encouragement */
.bg-final-wrap {
  max-width: 65ch;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-md);
}

.bg-final-wrap p {
  margin-block-end: 0;
}

.bg-cta-secondary {
  min-width: 220px;
}

/* Tablet */
@media (min-width: 768px) and (max-width: 1023px) {
  .bg-intro-grid,
  .bg-what-grid,
  .bg-mechanics-grid {
    grid-template-columns: repeat(8, minmax(0, 1fr));
  }

  .bg-intro-title-block,
  .bg-what-text,
  .bg-mechanics-text {
    grid-column: 1 / span 5;
  }

  .bg-lab-panel,
  .bg-verified-panel,
  .bg-strategy-panel {
    grid-column: 6 / span 3;
  }

  .bg-tips-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* Mobile */
@media (max-width: 767px) {
  .bg-section {
    padding-block: var(--space-3xl);
    border-inline-start: 4px solid var(--color-conveyor-line);
    border-block-end: 1px solid var(--color-conveyor-line);
  }

  .bg-intro-grid,
  .bg-what-grid,
  .bg-mechanics-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-lg);
  }

  .bg-intro-title-block,
  .bg-lab-panel,
  .bg-what-text,
  .bg-verified-panel,
  .bg-mechanics-text,
  .bg-strategy-panel {
    grid-column: 1;
  }

  .bg-intro-lead,
  .bg-what-text p,
  .bg-what-list,
  .bg-mechanics-text p,
  .bg-step-list li,
  .bg-mistake-list li,
  .bg-next-wrap,
  .bg-final-wrap {
    max-width: 100%;
  }

  .bg-tips-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .bg-tip-panel p {
    max-width: 100%;
  }

  .bg-cta,
  .bg-cta-secondary {
    width: 100%;
    min-width: 0;
  }

  .bg-fact-list {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .bg-section {
    animation: none;
    transition: none;
  }
}