/* ==========================================================================
   Project showcase grid + interactive 3D cards
   ========================================================================== */

.projects-intro {
  display: grid; grid-template-columns: 1fr 1fr; gap: var(--lg);
  align-items: end; margin-bottom: var(--xl);
}
.projects-intro h2 { font-size: var(--h2); }
.projects-intro p { color: var(--text-secondary); justify-self: end; }
@media (max-width: 760px) {
  .projects-intro { grid-template-columns: 1fr; }
  .projects-intro p { justify-self: start; }
}

/* The grid: alternating wide editorial rows */
.project-list { display: flex; flex-direction: column; }

.project-card {
  --project-accent: var(--accent);
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: clamp(1.5rem, 5vw, 5rem);
  align-items: center;
  padding-block: clamp(3rem, 7vw, 6rem);
  border-top: 1px solid var(--border);
  position: relative;
}
.project-card:last-child { border-bottom: 1px solid var(--border); }
.project-card:nth-child(even) .card-stage { order: 2; }
.project-card:nth-child(even) .card-info { order: 1; }

/* --- 3D stage (Three.js canvas lives here) --- */
.card-stage {
  position: relative;
  aspect-ratio: 5 / 4;
  background: var(--bg-inset);
  border: 1px solid var(--border);
  border-radius: var(--r-std);
  overflow: hidden;
  cursor: grab;
  touch-action: pan-y;
  transition: box-shadow 0.5s var(--ease), transform 0.5s var(--ease);
  will-change: transform;
}
.card-stage:active { cursor: grabbing; }
.project-card:hover .card-stage { box-shadow: var(--sh-hover); }

/* specimen frame ticks */
.card-stage::before, .card-stage::after {
  content: ""; position: absolute; z-index: 3; pointer-events: none;
  width: 14px; height: 14px; border: 2px solid var(--project-accent);
}
.card-stage::before { top: 12px; left: 12px; border-right: 0; border-bottom: 0; }
.card-stage::after  { bottom: 12px; right: 12px; border-left: 0; border-top: 0; }

.card-stage canvas { display: block; width: 100% !important; height: 100% !important; }

/* loading shimmer until three.js paints */
.card-stage[data-loaded="false"]::after {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(110deg, transparent 30%, color-mix(in srgb, var(--project-accent) 14%, transparent) 50%, transparent 70%);
  background-size: 220% 100%;
  animation: shimmer 1.6s infinite;
  border: 0;
}
@keyframes shimmer { to { background-position: -220% 0; } }

/* hint + drag affordance overlay */
.stage-hint {
  position: absolute; bottom: 12px; left: 50%; transform: translateX(-50%);
  z-index: 4; pointer-events: none;
  font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--text-secondary);
  display: flex; align-items: center; gap: var(--sm);
  background: color-mix(in srgb, var(--bg-secondary) 78%, transparent);
  padding: 6px 12px; border-radius: 100px;
  opacity: 0; transition: opacity 0.4s var(--ease);
}
.project-card:hover .stage-hint { opacity: 1; }
.stage-hint.faded { opacity: 0 !important; }

/* spec readout that updates as you rotate */
.stage-readout {
  position: absolute; top: 12px; right: 12px; z-index: 4; pointer-events: none;
  font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.08em;
  color: var(--text-faint); text-align: right; line-height: 1.5;
}
.stage-readout b { color: var(--project-accent); font-weight: 500; }

/* --- Card info --- */
.card-info .card-index {
  font-family: var(--font-mono); font-size: var(--small);
  color: var(--project-accent); letter-spacing: 0.1em; margin-bottom: var(--md);
  display: flex; align-items: center; gap: var(--md);
}
.card-info .card-index .tag {
  border: 1px solid var(--border); padding: 3px 10px; border-radius: 100px;
  color: var(--text-secondary); text-transform: uppercase;
}
.card-info .card-index .status {
  margin-left: auto; display: flex; align-items: center; gap: 6px; color: var(--text-secondary);
}
.card-info .card-index .status::before {
  content: ""; width: 7px; height: 7px; border-radius: 50%;
  background: var(--project-accent);
  box-shadow: 0 0 0 0 var(--project-accent);
  animation: pulse 2.4s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--project-accent) 60%, transparent); }
  70% { box-shadow: 0 0 0 8px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

.card-info h3 {
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  margin-bottom: var(--md);
  letter-spacing: -0.025em;
}
.card-info .card-brief {
  color: var(--text-secondary); margin-bottom: var(--lg); font-size: 1.1rem;
}
.card-meta {
  display: flex; flex-wrap: wrap; gap: var(--sm); margin-bottom: var(--lg);
}
.card-meta li {
  list-style: none;
  font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--text-secondary);
  border: 1px solid var(--border); padding: 5px 11px; border-radius: var(--r-std);
}
.card-achievement {
  border-left: 2px solid var(--project-accent);
  padding-left: var(--md); margin-bottom: var(--lg);
}
.card-achievement .k {
  display: block; font-family: var(--font-mono); font-size: 0.66rem;
  text-transform: uppercase; letter-spacing: 0.14em; color: var(--text-faint);
  margin-bottom: 4px;
}
.card-achievement .v { font-family: var(--font-display); font-size: 1.5rem; letter-spacing: -0.02em; }

@media (max-width: 860px) {
  .project-card { grid-template-columns: 1fr; gap: var(--lg); }
  .project-card:nth-child(even) .card-stage { order: 0; }
  .project-card:nth-child(even) .card-info { order: 0; }
}

/* ==========================================================================
   About section
   ========================================================================== */
.about { background: var(--bg-secondary); border-block: 1px solid var(--border); }
.about-grid {
  display: grid; grid-template-columns: 0.9fr 1.4fr; gap: clamp(2rem, 6vw, 6rem);
  align-items: start;
}
.about-portrait {
  aspect-ratio: 3/4; background: var(--bg-inset);
  border: 1px solid var(--border); border-radius: var(--r-std);
  position: relative; overflow: hidden;
  display: grid; place-items: center;
}
.about-portrait .mono { color: var(--text-faint); }
.about-portrait::after {
  content: "CG"; font-family: var(--font-display); font-size: 8rem;
  color: color-mix(in srgb, var(--accent) 22%, transparent);
  position: absolute;
}
.about-lead {
  font-family: var(--font-display); font-weight: 400;
  font-size: clamp(1.6rem, 3.2vw, 2.6rem); line-height: 1.18;
  letter-spacing: -0.02em; margin-bottom: var(--lg);
}
.about-lead .marker { font-style: italic; }
.about-body { color: var(--text-secondary); margin-bottom: var(--lg); }
.about-skills { display: flex; flex-wrap: wrap; gap: var(--sm); margin-top: var(--lg); }
.about-skills span {
  font-family: var(--font-mono); font-size: 0.7rem; text-transform: uppercase;
  letter-spacing: 0.06em; border: 1px solid var(--border); padding: 6px 12px;
  border-radius: 100px; color: var(--text-secondary);
}
.about-stats { display: flex; gap: var(--xl); margin-top: var(--xl); flex-wrap: wrap; }
.about-stats .stat .n {
  font-family: var(--font-display); font-size: clamp(2.2rem, 5vw, 3.4rem);
  color: var(--accent-deep); display: block; letter-spacing: -0.02em;
}
.about-stats .stat .l {
  font-family: var(--font-mono); font-size: 0.68rem; text-transform: uppercase;
  letter-spacing: 0.1em; color: var(--text-faint);
}
@media (max-width: 760px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-portrait { max-width: 280px; }
}