/* Projects: stacked sticky cards with double borders, video previews, lightbox */
.projects { padding-block: clamp(90px, 11vw, 170px); background: var(--bg); }
.projects__title { font-size: clamp(4.6rem, 14vw, 13rem); text-align: center; margin-bottom: 20px; }
.projects__intro { max-width: 640px; margin: 0 auto clamp(36px, 5vw, 70px); text-align: center; color: var(--ink-dim); }
.projects__intro p { margin-bottom: .6em; }
.projects__intro strong { color: var(--ink); font-size: 1.15em; }

.proj { display: grid; gap: 26px; }
.proj__card {
  border-radius: var(--radius);
  padding: clamp(16px, 1.8vw, 24px);
  background: linear-gradient(180deg, #131317, #0b0b0d);
  /* double outline like the reference: outer hairline + inner inset hairline */
  border: 1px solid var(--line);
  box-shadow: inset 0 0 0 6px #0f0f12, inset 0 0 0 7px var(--line-soft), 0 -20px 60px -30px rgba(0, 0, 0, .9);
  position: sticky; top: calc(84px + var(--i) * 16px);
}
.proj__top { display: flex; align-items: center; gap: 16px; margin: 4px 6px 16px; }
.proj__num { font-family: var(--f-display); font-size: clamp(2.4rem, 3.6vw, 3.4rem); line-height: 1; font-weight: 900; letter-spacing: -.04em; }
.proj__meta { line-height: 1.3; }
.proj__meta small { display: block; font-size: .7rem; letter-spacing: .14em; color: var(--ink-dim); font-weight: 700; }
.proj__meta strong { font-size: clamp(1.05rem, 1.5vw, 1.3rem); font-weight: 800; }
.proj__meta .sub { display: block; font-size: .88rem; color: var(--ink-dim); }
.proj__tag { margin-inline-start: auto; font-size: .78rem; font-weight: 800; border: 1px solid var(--line); border-radius: 999px; padding: .45em 1.1em; white-space: nowrap; }

.proj__media { display: grid; grid-auto-flow: column; grid-auto-columns: 1fr; gap: 10px; }
.proj__media button { position: relative; border-radius: var(--radius-sm); overflow: hidden; aspect-ratio: 9 / 13; background: #000; }
.proj__media video, .proj__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s var(--ease-out), filter .7s; }
.proj__media button:hover video, .proj__media button:hover img { transform: scale(1.05); }
.proj__media .cap {
  position: absolute; inset-inline: 10px; bottom: 10px; z-index: 1;
  font-size: .75rem; font-weight: 800; text-align: start;
  padding: .35em .8em; border-radius: 999px; width: fit-content;
  background: rgba(0, 0, 0, .55); backdrop-filter: blur(8px);
}
.proj__media button::after {
  content: "▶"; position: absolute; top: 10px; inset-inline-end: 10px;
  width: 38px; height: 38px; border-radius: 50%; display: grid; place-items: center;
  background: rgba(255, 255, 255, .92); color: #000; font-size: .8rem;
  opacity: 0; transform: scale(.6); transition: all .35s var(--ease-spring);
}
.proj__media button:hover::after { opacity: 1; transform: none; }
@media (max-width: 700px) {
  .proj__media { grid-auto-flow: row; grid-template-columns: 1fr 1fr; }
  .proj__card { position: relative; top: 0; }
  .proj__top { flex-wrap: wrap; }
}

/* Lightbox */
.lightbox { position: fixed; inset: 0; z-index: 90; background: rgba(0, 0, 0, .92); backdrop-filter: blur(10px); display: none; place-items: center; padding: 20px; }
.lightbox.is-open { display: grid; }
.lightbox video, .lightbox img { max-height: 88vh; max-width: 92vw; border-radius: var(--radius-sm); }
.lightbox__close { position: absolute; top: 18px; inset-inline-end: 18px; width: 48px; height: 48px; border-radius: 50%; background: #fff; color: #000; font-size: 1.3rem; }