:root {
  --ib-void: #0e0c19;
  --ib-surface: #171426;
  --ib-surface-raised: #201b33;
  --ib-surface-line: #352d52;
  --ib-marigold: #ffc107;
  --ib-teal: #0dcaf0;
  --ib-coral: #ff4757;
  --ib-text: #ffffff;
  --ib-muted: #d0c8e0;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Plus Tasikmalaya Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

/* Background Glow */
.ib-glow {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(600px 400px at 10% -10%, rgba(255,193,7,.12), transparent 60%),
    radial-gradient(500px 400px at 100% 0%, rgba(13,202,240,.10), transparent 60%);
}

html, body {
  background-color: #0e0c19 !important;
  color: #ffffff;
  margin: 0;
  padding: 0;
  min-height: 100vh;
}

.ib-wrapper {
  background: var(--ib-void);
  color: var(--ib-text);
  font-family: var(--font-body);
  min-height: 100vh;
  width: 100%;
}

/* Compact Simple Header */
.ib-topnav {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(14,12,25,.95);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--ib-surface-line);
}

.ib-topnav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 16px;
}

.ib-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 8px;
  color: #ffffff !important;
  text-decoration: none;
}

.ib-brand .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ib-marigold);
  box-shadow: 0 0 10px var(--ib-marigold);
}

.ib-simple-tabs {
  display: flex;
  align-items: center;
  gap: 6px;
}

.ib-simple-btn {
  padding: 6px 16px;
  min-height: 36px;
  border-radius: 999px;
  border: 1px solid var(--ib-surface-line);
  background: var(--ib-surface);
  color: var(--ib-muted);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all .18s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.ib-simple-btn:hover {
  color: #ffffff !important;
  background: var(--ib-surface-raised);
  border-color: rgba(255,255,255,0.25);
}

.ib-simple-btn.active {
  color: #000000 !important;
  background: var(--ib-marigold) !important;
  border-color: var(--ib-marigold) !important;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(255,193,7,0.3);
}

.ib-simple-btn.active-buyer {
  color: #000000 !important;
  background: var(--ib-teal) !important;
  border-color: var(--ib-teal) !important;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(13,202,240,0.3);
}

/* Category Chips & Pills Horizontal Scroll Container */
.chip-scroll-container {
  display: flex;
  align-items: center;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
  padding: 4px 2px;
  width: 100%;
}

.chip-scroll-container::-webkit-scrollbar {
  display: none;
}

.cat-chip {
  flex-shrink: 0;
  min-height: 36px;
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  transition: all 0.18s ease;
  border: 1px solid var(--ib-surface-line);
  background: var(--ib-surface);
  color: var(--ib-muted);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
}

.cat-chip:hover {
  color: #ffffff !important;
  background: var(--ib-surface-raised);
  border-color: rgba(255,255,255,0.25);
}

.cat-chip.active {
  color: #000000 !important;
  background: var(--ib-marigold) !important;
  border-color: var(--ib-marigold) !important;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(255,193,7,0.3);
}

.cat-chip.active-info {
  color: #000000 !important;
  background: var(--ib-teal) !important;
  border-color: var(--ib-teal) !important;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(13,202,240,0.3);
}

/* MOBILE TIKTOK SCROLL-SNAP FEED (<768px) */
#feed-mobile {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 10px;
}

.snap-frame {
  width: 100%;
  max-width: 420px;
  height: calc(100vh - 100px);
  min-height: 560px;
  border-radius: 22px;
  overflow: hidden;
  border: 1px solid var(--ib-surface-line);
  box-shadow: 0 30px 60px -20px rgba(0,0,0,.7);
  position: relative;
  background: var(--ib-surface);
}

.snap-scroll {
  height: 100%;
  overflow-y: auto;
  scroll-snap-type: y mandatory;
  scrollbar-width: none;
}

.snap-scroll::-webkit-scrollbar {
  display: none;
}

.post-full {
  position: relative;
  height: 100%;
  scroll-snap-align: start;
  scroll-snap-stop: always;
  display: flex;
  align-items: flex-end;
  background-size: cover;
  background-position: center;
  overflow: hidden;
}

.post-full::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(14,12,25,0) 30%, rgba(14,12,25,.65) 60%, rgba(14,12,25,.95) 100%);
}

.post-body {
  position: relative;
  z-index: 2;
  width: 100%;
  padding: 16px 68px 20px 16px;
}

.post-geo {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .04em;
  background: rgba(23,20,38,.9);
  border: 1px solid rgba(255,193,7,.5);
  color: #ffc107 !important;
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
  backdrop-filter: blur(6px);
}

.post-geo .live {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ib-teal);
  box-shadow: 0 0 8px var(--ib-teal);
}

.post-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.25;
  margin: 0 0 6px;
  color: #ffffff !important;
}

.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 6px;
}

.post-tags span {
  font-size: 12px;
  color: #0dcaf0 !important;
  font-weight: 600;
}

.post-desc {
  font-size: 13px;
  line-height: 1.55;
  color: #e0d8f0 !important;
}

.rail {
  position: absolute;
  right: 12px;
  bottom: 24px;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.rail .avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 2px solid var(--ib-marigold);
  background-size: cover;
  background-position: center;
}

.rail button {
  background: none;
  border: none;
  color: #ffffff;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  cursor: pointer;
}

.rail button i {
  font-size: 24px;
  filter: drop-shadow(0 2px 6px rgba(0,0,0,.7));
}

.rail button span {
  font-size: 11px;
  font-weight: 700;
  font-family: var(--font-mono);
  color: #ffffff !important;
}

.rail button.liked i {
  color: var(--ib-coral) !important;
}

.rail button.saved i {
  color: var(--ib-marigold) !important;
}

/* DESKTOP PINTEREST MASONRY GRID (≥768px) */
#feed-desktop {
  display: none;
  padding: 10px 16px;
}

.ib-masonry {
  column-count: 2;
  column-gap: 16px;
}

.ib-card {
  break-inside: avoid;
  margin-bottom: 16px;
  border-radius: 18px;
  overflow: hidden;
  background: var(--ib-surface);
  border: 1px solid var(--ib-surface-line);
  position: relative;
  transition: transform .18s ease, box-shadow .18s ease;
}

.ib-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px -18px rgba(0,0,0,.7);
}

.ib-card img {
  width: 100%;
  display: block;
  object-fit: cover;
}

.ib-card-body {
  padding: 14px 16px;
}

.ib-card-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.3;
  margin: 0 0 6px;
  color: #ffffff !important;
}

.ib-card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--ib-surface-line);
  padding-top: 10px;
  margin-top: 10px;
}

.ib-card-foot .who {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: #d0c8e0 !important;
  font-weight: 600;
}

.ib-card-foot .who .avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background-size: cover;
  background-position: center;
}

.ib-card-actions {
  display: flex;
  gap: 12px;
}

.ib-card-actions button {
  background: none;
  border: none;
  color: #d0c8e0;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  font-weight: 700;
}

.ib-card-actions button.liked {
  color: var(--ib-coral) !important;
}

@media (min-width: 768px) {
  #feed-mobile { display: none; }
  #feed-desktop { display: block; }
  .ib-masonry { column-count: 3; }
}

@media (min-width: 1040px) {
  .ib-masonry { column-count: 4; }
}