/* ============================================
   Projects page — clean card grid with filters
   ============================================ */

.proj-filters {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.proj-filter {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.55rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--glass);
  color: var(--fg-2);
  cursor: pointer;
  transition: border-color 0.25s, color 0.25s, background 0.25s, transform 0.25s;
}
.proj-filter:hover {
  border-color: var(--line-strong, var(--line));
  color: var(--fg);
  transform: translateY(-1px);
}
.proj-filter.on {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--bg-ink, var(--bg));
}

.pgrid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 1.5rem;
}
@media (max-width: 640px) {
  .pgrid { grid-template-columns: 1fr; }
}

.pcard {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 1.75rem;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--glass);
  backdrop-filter: blur(8px);
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s, opacity 0.3s;
  overflow: hidden;
}
.pcard::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 18px;
  padding: 1px;
  background: linear-gradient(135deg, transparent 40%, color-mix(in oklch, var(--lime) 40%, transparent) 70%, transparent);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
          mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}
.pcard:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong, var(--line));
}
.pcard:hover::before {
  opacity: 1;
}
.pcard.hidden {
  display: none;
}

/* Flagship variant — full-width on wider screens with accent stripe */
.pcard-flagship {
  grid-column: 1 / -1;
}
.pcard-flagship::after {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--lime), var(--violet));
}

.pcard-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}
.pcard-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.pcard-yr {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--fg-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
  padding-top: 0.3rem;
}

.pcard-name {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2vw, 1.75rem);
  letter-spacing: -0.02em;
  line-height: 1.05;
  font-weight: 500;
  color: var(--fg-0, var(--fg));
  margin: 0 0 0.35rem;
}
.pcard-tag {
  font-size: 0.85rem;
  color: var(--fg-2);
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
  margin: 0 0 1rem;
}
.pcard-desc {
  color: var(--fg-2);
  font-size: 0.92rem;
  line-height: 1.65;
  margin: 0 0 1.1rem;
}
.pcard-points {
  list-style: none;
  padding: 0;
  margin: 0 0 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}
.pcard-points li {
  position: relative;
  padding-left: 1.15rem;
  color: var(--fg-2);
  font-size: 0.88rem;
  line-height: 1.55;
}
.pcard-points li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--lime);
  font-family: var(--font-mono);
  font-weight: 600;
}

.pcard-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: auto;
  padding-top: 0.5rem;
}
.pcard-stack span {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.3rem 0.65rem;
  border-radius: 6px;
  background: color-mix(in oklch, var(--bg) 60%, transparent);
  border: 1px solid var(--line);
  color: var(--fg-2);
  letter-spacing: 0.03em;
}
.pcard-actions {
  margin-top: 1.25rem;
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

/* Chip color variants */
.chip.lime  { background: color-mix(in oklch, var(--lime) 22%, transparent); color: var(--lime); border-color: color-mix(in oklch, var(--lime) 40%, transparent); }
.chip.violet { background: color-mix(in oklch, var(--violet) 22%, transparent); color: var(--violet); border-color: color-mix(in oklch, var(--violet) 40%, transparent); }
.chip.gold  { background: color-mix(in oklch, oklch(0.82 0.16 85) 22%, transparent); color: oklch(0.82 0.16 85); border-color: color-mix(in oklch, oklch(0.82 0.16 85) 40%, transparent); }
.chip.coral { background: color-mix(in oklch, var(--coral) 22%, transparent); color: var(--coral); border-color: color-mix(in oklch, var(--coral) 40%, transparent); }