/* ============================================================
   Projects gallery — 3D title entrance + scroll-driven semicircle
   arc of project names.
   ============================================================ */

.projects-intro {
  height: 60vh;
  min-height: 380px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  perspective: 1400px;
  text-align: center;
}

.projects-title {
  font-size: clamp(3rem, 10vw, 7rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  background: linear-gradient(120deg, #fff 0%, var(--accent-cyan) 45%, var(--accent-violet) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 0 30px rgba(125, 211, 252, 0.35));
  animation: title-fly-in 1.5s cubic-bezier(0.16, 1, 0.3, 1) both;
  transform-style: preserve-3d;
}

@keyframes title-fly-in {
  0% {
    opacity: 0;
    transform: translate3d(0, 0, -1400px) rotateX(25deg) scale(0.3);
    filter: blur(14px) drop-shadow(0 0 0 transparent);
  }
  70% {
    opacity: 1;
  }
  100% {
    opacity: 1;
    transform: translate3d(0, 0, 0) rotateX(0deg) scale(1);
    filter: blur(0) drop-shadow(0 0 30px rgba(125, 211, 252, 0.35));
  }
}

.projects-intro .scroll-hint {
  animation: hint-bob 2.2s ease-in-out infinite, hint-fade-in 1s ease 1.3s both;
}

@keyframes hint-fade-in {
  from { opacity: 0; }
}

/* ---------- The scroll-driven arc ---------- */

.orbit-scroll {
  position: relative;
  /* height set inline per-project-count in JS via --orbit-count */
  height: calc(var(--orbit-count, 3) * 85vh);
}

.orbit-sticky {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: hidden;
  perspective: 1600px;
}

.orbit-perspective {
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
}

.orbit-item {
  position: absolute;
  top: 50%;
  left: 50%;
  will-change: transform, opacity, filter;
  text-align: center;
  white-space: nowrap;
  cursor: default;
  transition: text-shadow 0.3s ease;
}

.orbit-item__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.6rem, 5vw, 3.4rem);
  color: var(--text-primary);
  letter-spacing: 0.01em;
}

.orbit-item__cta {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 18px auto 0;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: #ffffff;
  color: #10132b;
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1;
  opacity: 0;
  transform: translateY(6px) scale(0.8);
  transition: opacity 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}

.orbit-item.is-active {
  cursor: pointer;
  pointer-events: auto;
}

.orbit-item.is-active .orbit-item__title {
  text-shadow: 0 0 30px rgba(125, 211, 252, 0.6), 0 0 60px rgba(167, 139, 250, 0.4);
}

.orbit-item.is-active .orbit-item__cta {
  opacity: 1;
  transform: translateY(0) scale(1);
  box-shadow: 0 0 18px rgba(255, 255, 255, 0.55), 0 0 34px rgba(125, 211, 252, 0.4);
}

.projects-end {
  height: 40vh;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.6;
}