/* ─────────────────────────────────────────────────────────────
   Page 15 — Social Media
   ───────────────────────────────────────────────────────────── */

/* LinkedIn profile + banner */
.social-section-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 18px;
}
.social-section-head .n {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue-300);
}
.social-section-head h3 {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.012em;
  margin: 0;
  color: var(--fg-default);
}

.li-card {
  background: #FFFFFF;
  color: #000;
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: var(--radius-xl);
  overflow: hidden;
  max-width: 540px;
}
.li-card .banner {
  height: 160px;
  position: relative;
  background:
    radial-gradient(ellipse 60% 100% at 30% 30%, rgba(47,55,255,0.4), transparent 60%),
    linear-gradient(180deg, #000000, #050818);
  overflow: hidden;
  isolation: isolate;
}
.li-card .banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,0.55) 0.5px, transparent 0.5px);
  background-size: 120px 120px;
  background-position: 20px 20px;
  opacity: 0.5;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black, transparent);
}
.li-card .banner svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
}
.li-card .body {
  position: relative;
  padding: 36px 24px 24px;
}
.li-card .avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: #FFFFFF;
  border: 4px solid #FFFFFF;
  position: absolute;
  top: -52px;
  left: 24px;
  display: grid;
  place-items: center;
  box-shadow: 0 2px 6px rgba(0,0,0,0.12);
  overflow: hidden;
}
.li-card .avatar img { width: 64%; }
.li-card .name {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.014em;
  margin: 32px 0 4px;
}
.li-card .tagline {
  font-size: 14px;
  color: #4E4E56;
  margin: 0 0 14px;
  line-height: 1.5;
}
.li-card .meta {
  display: flex;
  gap: 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: #767781;
  border-top: 1px solid rgba(0,0,0,0.06);
  padding-top: 14px;
}

/* Three post types */
.post-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
@media (max-width: 900px) { .post-row { grid-template-columns: 1fr; } }
.post-card {
  display: flex;
  flex-direction: column;
}
.post-card .square {
  aspect-ratio: 1;
  border-radius: var(--radius-xl);
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.10);
  padding: 36px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  isolation: isolate;
}
.post-card .square::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(circle, rgba(255,255,255,0.5) 0.5px, transparent 0.5px);
  background-size: 140px 140px;
  background-position: 20px 20px;
  opacity: 0.45;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black, transparent);
}
.post-card .square > * { position: relative; z-index: 1; }
.post-card.opener .square {
  background:
    radial-gradient(ellipse 60% 80% at 80% 20%, rgba(132,82,255,0.35), transparent 60%),
    radial-gradient(ellipse 70% 80% at 20% 90%, rgba(47,55,255,0.30), transparent 60%),
    linear-gradient(180deg, #000000, #050818);
}
.post-card.insight .square {
  background:
    radial-gradient(ellipse 80% 80% at 50% 100%, rgba(47,55,255,0.30), transparent 60%),
    linear-gradient(180deg, #050818, #0A0F2E);
}
.post-card.recap .square {
  background:
    radial-gradient(ellipse 80% 80% at 0% 0%, rgba(47,55,255,0.25), transparent 60%),
    radial-gradient(ellipse 60% 60% at 100% 100%, rgba(105,253,248,0.10), transparent 60%),
    linear-gradient(180deg, #000000, #050818);
}
.post-card .top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}
.post-card .top img { height: 24px; }
.post-card .ix {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
}
.post-card .ix b { color: #FFFFFF; font-weight: 500; }
.post-card h3 {
  font-size: clamp(22px, 2.4vw, 32px);
  letter-spacing: -0.022em;
  line-height: 1.1;
  font-weight: 600;
  color: #FFFFFF;
  margin: 0;
  text-wrap: balance;
}
.post-card .square .insight-meta {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blue-300);
  margin-bottom: 12px;
}
.post-card .recap-num {
  font-size: clamp(56px, 7vw, 96px);
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 1;
  color: #FFFFFF;
  margin: 0 0 8px;
}
.post-card .recap-line {
  font-size: 14px;
  color: rgba(255,255,255,0.78);
  margin: 0;
}
.post-card .foot {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
}
.post-card .foot b { color: #FFFFFF; font-weight: 500; }
.post-card .info {
  padding: 14px 4px 4px;
}
.post-card .info .name {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.005em;
  color: var(--fg-default);
  margin-bottom: 2px;
}
.post-card .info .when {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--fg-muted);
  text-transform: uppercase;
}

/* Story 9:16 + carousel side by side */
.format-row {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 32px;
  align-items: stretch;
}
@media (max-width: 820px) { .format-row { grid-template-columns: 1fr; } }
.story {
  aspect-ratio: 9 / 16;
  max-width: 280px;
  border-radius: var(--radius-xl);
  background:
    radial-gradient(ellipse 80% 70% at 50% 25%, rgba(47,55,255,0.32), transparent 60%),
    linear-gradient(180deg, #000000, #050818);
  border: 1px solid rgba(255,255,255,0.10);
  position: relative;
  overflow: hidden;
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  isolation: isolate;
}
.story::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,0.5) 0.5px, transparent 0.5px);
  background-size: 100px 100px;
  opacity: 0.4;
}
.story > * { position: relative; z-index: 1; }
.story .ey {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
}
.story h4 {
  font-size: 22px;
  letter-spacing: -0.022em;
  line-height: 1.1;
  font-weight: 600;
  color: #FFFFFF;
  margin: 0;
  text-wrap: balance;
}
.story .foot {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.45);
  text-transform: uppercase;
}
.carousel {
  display: flex;
  flex-direction: column;
}
.carousel .frames {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
}
.carousel .frame {
  aspect-ratio: 1;
  border-radius: var(--radius-md);
  background:
    radial-gradient(ellipse at 50% 50%, rgba(47,55,255,0.18), transparent 65%),
    linear-gradient(180deg, #000000, #050818);
  border: 1px solid rgba(255,255,255,0.10);
  padding: 12px;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.carousel .frame .ix {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.55);
}
.carousel .frame .copy {
  font-size: 11px;
  font-weight: 500;
  color: #FFFFFF;
  line-height: 1.2;
}
.carousel .frame.active {
  border-color: rgba(133,160,255,0.4);
  background:
    radial-gradient(ellipse at 70% 30%, rgba(47,55,255,0.4), transparent 60%),
    linear-gradient(180deg, #050818, #0A0F2E);
}
.carousel .info {
  padding: 14px 0 0;
}
.carousel .info .name {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.008em;
  color: var(--fg-default);
  margin-bottom: 4px;
}
.carousel .info .desc {
  font-size: 13px;
  color: var(--fg-secondary);
  line-height: 1.55;
  margin: 0;
}

/* Caption patterns */
.captions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
@media (max-width: 900px) { .captions { grid-template-columns: 1fr; } }
.caption {
  padding: 24px 26px 26px;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  background: rgba(255,255,255,0.02);
}
.caption .ix {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue-300);
  margin-bottom: 12px;
}
.caption h5 {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.008em;
  margin: 0 0 12px;
  color: var(--fg-default);
}
.caption p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--fg-secondary);
  margin: 0;
  padding: 14px 16px;
  background: rgba(0,0,0,0.18);
  border-radius: var(--radius-md);
  border-left: 2px solid var(--blue-400);
}

/* Hashtag policy */
.tag-policy {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  overflow: hidden;
}
@media (max-width: 720px) { .tag-policy { grid-template-columns: 1fr; } }
.tag-policy .col {
  padding: 28px 28px 30px;
}
.tag-policy .col + .col { border-left: 1px solid var(--border-subtle); }
@media (max-width: 720px) {
  .tag-policy .col + .col { border-left: 0; border-top: 1px solid var(--border-subtle); }
}
.tag-policy .col.use { background: rgba(47,55,255,0.04); }
.tag-policy .col.avoid { background: rgba(233,97,38,0.04); }
.tag-policy .col h5 {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 0 0 16px;
}
.tag-policy .col.use h5 { color: var(--blue-300); }
.tag-policy .col.avoid h5 { color: var(--orange-300); }
.tag-policy .col .tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.tag-policy .col .tag {
  padding: 6px 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  border-radius: var(--radius-full);
  border: 1px solid;
}
.tag-policy .col.use .tag {
  border-color: rgba(133,160,255,0.32);
  color: var(--blue-300);
  background: rgba(47,55,255,0.04);
}
.tag-policy .col.avoid .tag {
  border-color: rgba(242,163,110,0.32);
  color: var(--orange-300);
  background: rgba(233,97,38,0.04);
  text-decoration: line-through;
  text-decoration-color: rgba(242,163,110,0.4);
}
.tag-policy .col p {
  font-size: 13px;
  color: var(--fg-secondary);
  line-height: 1.55;
  margin: 14px 0 0;
}