*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

  html, body {
    background: #fff;
    color: #111;
    font-family: -apple-system, 'Helvetica Neue', Arial, sans-serif;
    font-size: 13px;
    -webkit-font-smoothing: antialiased;
  }

  /* ─── Header ─── */
  .header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 10;
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 32px 40px;
    background: #fff;
  }

  .header-title {
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
  }

  .header-handle {
    font-size: 12px;
    color: #999;
    letter-spacing: 0.04em;
  }

  /* ─── List ─── */
  .feed-list {
    list-style: none;
    padding-top: 96px;
    padding-bottom: 80px;
  }

  .feed-item {
    display: grid;
    grid-template-columns: 72px 1fr auto;
    align-items: baseline;
    gap: 0 24px;
    padding: 18px 40px;
    cursor: default;
    transition: opacity 0.25s;
  }

  .feed-list:hover .feed-item { opacity: 0.3; }
  .feed-list:hover .feed-item:hover { opacity: 1; }

  .item-num {
    font-size: 11px;
    color: #bbb;
    letter-spacing: 0.1em;
    font-variant-numeric: tabular-nums;
  }

  .item-caption {
    font-size: 13px;
    font-weight: 400;
    line-height: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .item-date {
    font-size: 11px;
    color: #aaa;
    letter-spacing: 0.06em;
    white-space: nowrap;
  }

  /* ─── Floating Preview ─── */
  .preview {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) translateY(10px);
    width: min(44vw, 500px);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.35s cubic-bezier(.22,.68,0,1.1), transform 0.35s cubic-bezier(.22,.68,0,1.1);
    z-index: 5;
  }

  .preview.active {
    opacity: 1;
    transform: translate(-50%, -50%) translateY(0);
  }

  .preview img {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    display: block;
  }

  .preview-meta {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-top: 12px;
    padding: 0 2px;
  }

  .preview-tags {
    font-size: 11px;
    color: #aaa;
    letter-spacing: 0.03em;
  }

  .preview-likes {
    font-size: 11px;
    color: #aaa;
  }

/* ─── Page load animation (subtle) ─── */
.header, .feed-list { opacity: 0; transform: translateY(6px); transition: opacity .28s ease, transform .28s ease; }
body.is-loaded .header, body.is-loaded .feed-list { opacity: 1; transform: translateY(0); }

.feed-item { opacity: 0; transform: translateY(8px); transition: opacity .28s ease, transform .28s ease; transition-delay: var(--d, 0ms); }
body.is-loaded .feed-item { opacity: 1; transform: translateY(0); }

/* Keep original hover fade working even after load animation rules */
body.is-loaded .feed-list:hover .feed-item { opacity: 0.3; }
body.is-loaded .feed-list:hover .feed-item:hover { opacity: 1; }

/* Preview: clickable only when active */
.preview.active { pointer-events: auto; cursor: pointer; }

/* Hide hashtags in preview */
.preview-tags { display: none !important; }

/* Preview No badge (inside thumbnail, bottom-right) */
.preview-media{ position: relative; }
.preview-no{
  position: absolute;
  right: 10px;
  bottom: 10px;
  color: #fff;
  font-size: 11px;
  letter-spacing: 0.08em;
  padding: 6px 9px;
  border-radius: 999px;
  background: rgba(0,0,0,0.35);
  pointer-events: none;
}

/* Active row hint (mobile) */
.feed-item.is-active{ background: rgba(17,17,17,0.04); }

/* ─── Responsive ─── */
@media (max-width: 960px) {
  .header { padding: 18px 18px; }
  .feed-list { padding-top: 74px; padding-bottom: 90px; }
  .feed-item { padding: 14px 18px; grid-template-columns: 56px 1fr auto; gap: 0 14px; }

  /* No hover on touch (also cancel post-load hover rules) */
  .feed-list:hover .feed-item { opacity: 1; }
  .feed-list:hover .feed-item:hover { opacity: 1; }
  body.is-loaded .feed-list:hover .feed-item { opacity: 1; }
  body.is-loaded .feed-list:hover .feed-item:hover { opacity: 1; }

  .preview { width: min(70vw, 320px); }
}