/* ===== Column Post — Single Article ===== */

.mn-column {
  max-width: 720px;
  margin: 0 auto;
  padding: 3rem 1.5rem 4rem;
}

/* Header */
.mn-column__header {
  margin-bottom: 2.5rem;
  text-align: center;
}

.mn-column__category {
  display: inline-block;
  background: rgba(79, 158, 255, 0.1);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  border-radius: 50px;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.mn-column__title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  line-height: 1.3;
  margin-bottom: 1rem;
}

.mn-column__meta {
  color: var(--text-secondary);
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

.mn-column__meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

/* Table of Contents */
.mn-toc {
  background: var(--bg-secondary);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius);
  padding: 1.5rem 2rem;
  margin-bottom: 3rem;
}

.mn-toc__title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.75rem;
}

.mn-toc__list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.mn-toc__list li {
  margin-bottom: 0.4rem;
}

.mn-toc__list li a {
  color: var(--text-primary);
  font-size: 0.95rem;
  font-weight: 400;
  text-decoration: none;
  display: block;
  padding: 0.25rem 0;
  transition: color 0.2s, padding-left 0.2s;
}

.mn-toc__list li a:hover {
  color: var(--accent);
  padding-left: 0.5rem;
}

.mn-toc__list li.mn-toc--h3 a {
  padding-left: 1.25rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.mn-toc__list li.mn-toc--h3 a:hover {
  color: var(--accent);
  padding-left: 1.75rem;
}

/* Body Content */
.mn-column__body {
  line-height: 1.8;
  font-size: 1.05rem;
}

.mn-column__body h2 {
  font-size: 1.5rem;
  margin-top: 3rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.mn-column__body h3 {
  font-size: 1.2rem;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.mn-column__body p {
  margin-bottom: 1.25rem;
  color: var(--text-secondary);
}

.mn-column__body strong {
  color: var(--text-primary);
  font-weight: 600;
}

.mn-column__body ul,
.mn-column__body ol {
  margin: 1rem 0 1.5rem 1.5rem;
  color: var(--text-secondary);
}

.mn-column__body li {
  margin-bottom: 0.5rem;
  line-height: 1.7;
}

.mn-column__body ul li::marker {
  color: var(--accent);
}

.mn-column__body ol li::marker {
  color: var(--accent);
  font-weight: 600;
}

/* Blockquote / Tip box */
.mn-column__body blockquote {
  background: rgba(79, 158, 255, 0.05);
  border-left: 3px solid var(--accent);
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
  border-radius: 0 var(--radius) var(--radius) 0;
}

.mn-column__body blockquote p {
  color: var(--text-primary);
  margin-bottom: 0;
  font-size: 0.95rem;
}

/* Images in content */
.mn-column__body img {
  border-radius: var(--radius);
  margin: 1.5rem 0;
}

/* CTA Box */
.mn-column__cta {
  background: linear-gradient(135deg, rgba(71, 212, 202, 0.1), rgba(71, 212, 202, 0.03));
  border: 1px solid rgba(71, 212, 202, 0.15);
  border-radius: var(--radius);
  padding: 2rem;
  margin-top: 3rem;
  text-align: center;
}

.mn-column__cta h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.mn-column__cta p {
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  font-size: 0.95rem;
}

/* Power button + Spark (mirrors home.css) */
.mn-column__cta .spark-wrap {
  position: relative;
  display: inline-block;
}

.mn-column__cta .spark-svg {
  position: absolute;
  top: -16px;
  left: -16px;
  width: calc(100% + 32px);
  height: calc(100% + 32px);
  pointer-events: none;
  overflow: visible;
}

.mn-column__cta .mn-btn--power {
  background-color: var(--accent);
  color: #0A332F;
  font-weight: 700;
  border: none;
  border-radius: 999px;
  padding: 0.85rem 2rem;
  font-size: 1rem;
  letter-spacing: 0.02em;
  transition: background-color 0.2s, transform 0.15s, box-shadow 0.2s;
  display: inline-block;
  text-decoration: none;
  cursor: pointer;
}

.mn-column__cta .mn-btn--power:hover {
  background-color: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(71, 212, 202, 0.3);
  color: #0A332F;
}

.mn-column__cta .mn-btn--power:active {
  background-color: var(--accent-active);
  transform: translateY(0);
}

.mn-column__cta .mn-btn--power.mn-btn--large {
  padding: 1.1rem 2.75rem;
  font-size: 1.15rem;
}

/* Share / Tags */
.mn-column__footer {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.mn-column__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.mn-column__tag {
  display: inline-block;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: 0.8rem;
  padding: 0.25rem 0.75rem;
  border-radius: 50px;
  text-decoration: none;
  transition: color 0.2s, background 0.2s;
}

.mn-column__tag:hover {
  background: rgba(79, 158, 255, 0.1);
  color: var(--accent);
}

/* ===== Column List Page ===== */
.mn-column-card {
  display: block;
  text-decoration: none;
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}

.mn-column-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.mn-column-card__thumb {
  aspect-ratio: 16/9;
  background: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 0.85rem;
  overflow: hidden;
}

.mn-column-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.mn-column-card__body {
  padding: 1.5rem;
}

.mn-column-card__cat {
  display: inline-block;
  background: rgba(79, 158, 255, 0.1);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: 50px;
  margin-bottom: 0.5rem;
}

.mn-column-card__title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  line-height: 1.4;
}

.mn-column-card__excerpt {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 0.75rem;
}

.mn-column-card__date {
  color: var(--text-secondary);
  font-size: 0.8rem;
  opacity: 0.7;
}

/* No posts */
.mn-column-empty {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text-secondary);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .mn-column {
    padding: 2rem 1rem 3rem;
  }

  .mn-column__body {
    font-size: 1rem;
  }

  .mn-column__body h2 {
    font-size: 1.3rem;
    margin-top: 2.5rem;
  }

  .mn-toc {
    padding: 1.25rem 1.5rem;
  }
}