/* ==========================================================================
   Posts Section Styles - Dual-Channel Synapse (Warm Paper Edition)
   ========================================================================== */

:root {
  --syn-bg: #f8fafc;
  --syn-spine-line: rgba(0, 0, 0, 0.08);
  --syn-title-color: #0284c7;
  --syn-title-hover: #0f172a;
  --syn-dot-bg: #059669;
  --syn-dot-shadow: 0 0 6px rgba(5, 150, 105, 0.4);
  --syn-dot-hover-bg: #0284c7;
  --syn-dot-hover-shadow: 0 0 10px rgba(2, 132, 199, 0.5);
  --syn-memo-color: #64748b;
  --syn-memo-hover: #1e293b;
  --syn-row-hover-bg: #ffffff;
}

.posts-page-viewport {
  max-width: 1000px;
  margin: 36px auto 100px auto;
  padding: 0 24px;
  box-sizing: border-box;
  font-family: 'Lato', 'Helvetica Neue', Arial, sans-serif;
  color: #0f172a;
}

/* Page Header */
.posts-header {
  text-align: center;
  margin-bottom: 40px;
}

.posts-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #0284c7;
  margin-bottom: 8px;
  font-family: 'Space Mono', 'Space Grotesk', monospace;
}

.posts-pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 9999px;
  background: #0284c7;
  box-shadow: 0 0 8px rgba(2, 132, 199, 0.6);
  animation: pulse-glow 2s infinite ease-in-out;
}

.posts-title {
  font-size: 38px;
  font-weight: 900;
  margin: 0;
  letter-spacing: -0.03em;
  color: #0f172a;
  font-family: 'Lato', sans-serif;
}

/* Dual-Channel Synapse Canvas */
.synapse-canvas {
  max-width: 960px;
  margin: 0 auto;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 18px;
  box-sizing: border-box;
}

/* Continuous Central Vertical Spine */
.synapse-canvas::before {
  content: "";
  position: absolute;
  top: 10px;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  background: var(--syn-spine-line);
  pointer-events: none;
  z-index: 1;
}

.synapse-row {
  position: relative;
  z-index: 5;
  display: grid;
  grid-template-columns: 1fr 44px 1fr;
  align-items: center;
  text-decoration: none !important;
  padding: 10px 14px;
  border-radius: 12px;
  gap: 16px;
  transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}

.synapse-title-side {
  text-align: right;
  padding-right: 4px;
}

.synapse-post-title {
  font-size: 20.5px;
  font-weight: 700;
  color: var(--syn-title-color);
  margin: 0;
  line-height: 1.35;
  letter-spacing: -0.01em;
  font-family: 'Lato', sans-serif;
  transition: color 0.18s ease;
}

.synapse-node-col {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 10;
}

.synapse-dot {
  width: 9px;
  height: 9px;
  border-radius: 9999px;
  background: var(--syn-dot-bg);
  box-shadow: var(--syn-dot-shadow);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), background 0.2s ease, box-shadow 0.2s ease;
}

.synapse-memo-side {
  text-align: left;
  padding-left: 4px;
}

.synapse-memo {
  font-size: 14px;
  color: var(--syn-memo-color);
  margin: 0;
  line-height: 1.45;
  font-family: 'Lato', sans-serif;
  transition: color 0.18s ease;
}

/* Hover Interactions */
.synapse-row:hover {
  background: var(--syn-row-hover-bg);
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.05);
  transform: scale(1.015);
}

.synapse-row:hover .synapse-post-title {
  color: var(--syn-title-hover);
  text-decoration: underline;
}

.synapse-row:hover .synapse-dot {
  transform: scale(1.6);
  background: var(--syn-dot-hover-bg);
  box-shadow: var(--syn-dot-hover-shadow);
}

.synapse-row:hover .synapse-memo {
  color: var(--syn-memo-hover);
}

/* Responsive Mobile Layout (< 720px) */
@media (max-width: 720px) {
  .posts-page-viewport {
    margin-top: 24px;
    padding: 0 16px;
  }

  .posts-title {
    font-size: 30px;
  }

  .synapse-canvas {
    gap: 14px;
  }

  /* Shift spine to left margin */
  .synapse-canvas::before {
    left: 20px;
    transform: none;
  }

  .synapse-row {
    grid-template-columns: 24px 1fr;
    gap: 12px;
    padding: 10px 8px;
  }

  .synapse-title-side {
    text-align: left;
    padding-right: 0;
  }

  .synapse-post-title {
    font-size: 18.5px;
  }

  .synapse-node-col {
    justify-content: flex-start;
    padding-top: 5px;
    align-items: flex-start;
  }

  .synapse-memo-side {
    grid-column: 2;
    padding-left: 0;
    margin-top: -6px;
  }

  .synapse-memo {
    font-size: 13px;
  }
}