/* Portfolio page: filter panel + TikTok-style feed */

/* ---------- Filter panel ---------- */
.pf-head { display: flex; flex-direction: column; gap: 18px; }
.pf-title { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 8px 20px; }
.pf-title h1 { font-size: clamp(2rem, 3.6vw, 3rem); line-height: 1.1; }
.pf-count { margin: 0; color: var(--muted); }
.pf-intro { margin: -8px 0 0; color: var(--muted); }
.pf-intro b { color: var(--text); font-weight: 600; }
.pf-filters { display: grid; gap: 12px; padding-top: 16px; border-top: 1px solid var(--line); }
.pf-filter-group { display: flex; align-items: center; gap: 14px; min-width: 0; }
.pf-filter-group > span { flex: none; width: 84px; font: 600 0.7rem "Space Grotesk", sans-serif; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); }
/* Chips scroll sideways instead of wrapping into a wall */
.pf-filter-group .chips { flex-wrap: nowrap; overflow-x: auto; padding: 2px 2px 6px; scrollbar-width: none; }
.pf-filter-group .chips::-webkit-scrollbar { display: none; }
.pf-filter-group .chip { flex: none; }

/* ---------- Feed stage with drifting ribbons behind ---------- */
.feed-stage { position: relative; padding: 10px 0 30px; }
.feed-ribbons { position: sticky; top: 0; height: 100vh; margin-bottom: -100vh; overflow: hidden; pointer-events: none; z-index: 0; }
.feed-ribbons .ribbon { opacity: 0.32; }
.feed-ribbons .ribbon-a { top: 22%; transform: rotate(-9deg); }
.feed-ribbons .ribbon-b { top: 52%; transform: rotate(7deg); }
.feed-ribbons .ribbon-c { top: 78%; transform: rotate(-5deg); background: rgba(6, 151, 196, 0.16); color: var(--ice); border-block: 1px solid rgba(41, 182, 236, 0.25); }
.feed-ribbons .ribbon-c .ribbon-track { animation-direction: reverse; }

.feed { position: relative; z-index: 1; display: flex; flex-direction: column; align-items: center; gap: 46px; }

/* One sample: media + action rail, title underneath */
.feed-item {
  display: grid;
  grid-template-columns: minmax(0, 400px) auto;
  grid-template-areas: "media rail" "meta .";
  gap: 14px 16px;
  scroll-margin-top: 110px;
}
.feed-item.reveal { transform: translateY(40px) scale(0.97); }
.feed-item.reveal.in { transform: none; }

.feed-media {
  grid-area: media;
  position: relative;
  aspect-ratio: 9 / 16;
  overflow: hidden;
  border-radius: 28px;
  border: 1px solid var(--line);
  background: #000;
  box-shadow: 0 40px 90px -40px rgba(0, 0, 0, 0.95), 0 0 0 1px rgba(255, 255, 255, 0.04);
  cursor: pointer;
}
/* Blurred copy fills the frame so non-vertical work still looks intentional */
.feed-media .bg { position: absolute; inset: -10%; width: 120%; height: 120%; object-fit: cover; filter: blur(26px) brightness(0.5) saturate(1.2); }
.feed-media .fg, .feed-media video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; }
.feed-media video { opacity: 0; transition: opacity 0.4s; }
.feed-media.playing video { opacity: 1; }

/* Watermark: visible on screen recordings, costs no video quality */
.feed-media .wm { position: absolute; right: 14px; bottom: 14px; width: 74px; opacity: 0.4; filter: drop-shadow(0 1px 3px rgba(0, 0, 0, 0.6)); pointer-events: none; }
.feed-media .lang { position: absolute; top: 14px; left: 14px; padding: 4px 10px; border-radius: 999px; font-size: 0.72rem; font-weight: 700; background: rgba(4, 7, 11, 0.55); color: #fff; backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
/* Sound on/off — one setting for every video on the site */
.feed-media .sound {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 3;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 50%;
  background: rgba(4, 7, 11, 0.5);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: #fff;
  cursor: pointer;
  transition: transform 0.4s var(--spring), background 0.3s;
}
.feed-media .sound:hover { transform: scale(1.08); }
.feed-media .sound svg { width: 20px; height: 20px; }
.feed-media .sound .on { display: none; }
.sound-on .feed-media .sound .on { display: block; }
.sound-on .feed-media .sound .off { display: none; }
.sound-on .feed-media .sound { background: rgba(6, 151, 196, 0.6); border-color: rgba(168, 232, 255, 0.5); }

.feed-media .state { position: absolute; top: 50%; left: 50%; display: grid; place-items: center; width: 64px; height: 64px; border-radius: 50%; translate: -50% -50%; background: rgba(255, 255, 255, 0.16); border: 1px solid rgba(255, 255, 255, 0.3); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); transition: opacity 0.3s, scale 0.4s var(--spring); }
.feed-media.playing .state { opacity: 0; scale: 0.8; }
.feed-media .state svg { width: 26px; height: 26px; fill: #fff; }

/* Action rail beside the media */
.feed-rail { grid-area: rail; display: flex; flex-direction: column; justify-content: flex-end; gap: 12px; padding-bottom: 8px; }
.rail-btn {
  display: grid;
  justify-items: center;
  gap: 4px;
  padding: 0;
  border: 0;
  background: none;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  text-align: center;
}
.rail-btn .ico {
  display: grid;
  place-items: center;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--glass);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  color: var(--text);
  transition: transform 0.45s var(--spring), background 0.3s, box-shadow 0.3s;
}
.rail-btn:hover .ico { transform: scale(1.1); background: var(--glass-strong); }
.rail-btn.primary .ico { border: 0; color: #02121b; background: var(--accent-grad); box-shadow: 0 10px 26px -8px rgba(41, 182, 236, 0.7); }
.rail-btn svg { width: 21px; height: 21px; }

.feed-meta { grid-area: meta; padding: 0 6px; }
.feed-meta .kicker { display: inline-block; margin-bottom: 6px; font: 700 0.68rem "Space Grotesk", sans-serif; letter-spacing: 0.16em; text-transform: uppercase; color: var(--blue-bright); }
.feed-meta h2 { font-size: 1.3rem; line-height: 1.25; }
.feed-meta .desc { margin: 8px 0 0; max-width: 560px; color: var(--muted); font-size: 0.95rem; line-height: 1.55; }
.feed-meta .tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.feed-meta .tags button { height: 28px; padding: 0 11px; border: 1px solid var(--line); border-radius: 999px; background: var(--glass); font-size: 0.75rem; font-weight: 600; color: var(--muted); cursor: pointer; }
.feed-meta .tags button:hover { color: var(--text); }

.feed-sentinel { height: 1px; }

/* ---------- Mobile: full-width media, rail floats over it ---------- */
@media (max-width: 720px) {
  .pf-filter-group { flex-direction: column; align-items: flex-start; gap: 8px; }
  .pf-filter-group .chips { width: 100%; }
  .feed { gap: 34px; }
  .feed-item { grid-template-columns: minmax(0, 1fr); grid-template-areas: "media" "meta"; width: 100%; }
  .feed-media { border-radius: 24px; }
  /* Share the media's grid cell so the buttons sit on top of the video, bottom-right */
  .feed-rail { grid-area: media; align-self: end; justify-self: end; z-index: 2; margin: 0 12px 64px 0; padding: 0; }
  .rail-btn { color: #fff; text-shadow: 0 1px 4px rgba(0, 0, 0, 0.7); }
  .rail-btn .ico { width: 46px; height: 46px; background: rgba(4, 7, 11, 0.45); color: #fff; }
}