/* ═══════════════════════════════════════════════════════════════════
   css/skills.css — Skills grid with 3D tilt cards
═══════════════════════════════════════════════════════════════════ */

#skills { overflow: hidden; }

#skills::before {
  content: '';
  position: absolute;
  width: 900px;
  height: 900px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(79,216,255,0.025) 0%, transparent 55%);
  border-radius: 50%;
  pointer-events: none;
}

/* ── Grid ─────────────────────────────────────────────────────── */
.skills__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
  margin-top: var(--space-12);
}

/* ── Card ─────────────────────────────────────────────────────── */
.skill-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  position: relative;
  overflow: hidden;
  cursor: default;
  transform-style: preserve-3d;
  will-change: transform;
  transition:
    border-color var(--t-fast) var(--ease-std),
    box-shadow var(--t-med) var(--ease-out),
    background var(--t-fast) var(--ease-std);
}

.skill-card:hover {
  border-color: rgba(79,216,255,0.32);
  box-shadow:
    0 0 48px rgba(79,216,255,0.08),
    0 24px 64px rgba(0,0,0,0.32);
}

/* ── Shine overlay (follows mouse via JS) ─────────────────────── */
.skill-card__shine {
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
    rgba(255,255,255,0.07) 0%,
    transparent 60%
  );
  opacity: 0;
  transition: opacity var(--t-fast) var(--ease-std);
  border-radius: inherit;
  pointer-events: none;
  z-index: 3;
}

.skill-card:hover .skill-card__shine { opacity: 1; }

/* ── Card inner (lifted on 3D tilt) ──────────────────────────── */
.skill-card__inner {
  position: relative;
  z-index: 2;
}

/* ── Icon ─────────────────────────────────────────────────────── */
.skill-card__icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  font-size: 1.5rem;
}

.skill-card__icon--cyan {
  background: var(--cyan-dim);
  box-shadow: 0 0 20px var(--cyan-dim);
}

.skill-card__icon--violet {
  background: var(--violet-dim);
  box-shadow: 0 0 20px var(--violet-dim);
}

.skill-card__icon--amber {
  background: var(--amber-dim);
  box-shadow: 0 0 20px var(--amber-dim);
}

/* ── Title ────────────────────────────────────────────────────── */
.skill-card__title {
  font-family: var(--ff-display);
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
  color: var(--text-1);
  margin-bottom: var(--space-2);
  line-height: var(--lh-snug);
}

/* ── Description ──────────────────────────────────────────────── */
.skill-card__desc {
  font-size: var(--fs-sm);
  color: var(--text-3);
  line-height: var(--lh-relaxed);
  margin-bottom: var(--space-5);
}

/* ── Tag row ──────────────────────────────────────────────────── */
.skill-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* ── Responsive ───────────────────────────────────────────────── */
@media (max-width: 900px) {
  .skills__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 540px) {
  .skills__grid { grid-template-columns: 1fr; }
}