/* ── ASTRA — micro-interactions ────────────────────────────────────────────────
   Gerakan halus yang memperkuat hierarki, bukan mengganggu. Semua efek
   dinonaktifkan otomatis saat pengguna memilih gerakan minimal.
   ───────────────────────────────────────────────────────────────────────────── */

/* 1. Stagger reveal — anak muncul berurutan */
[data-stagger] > * {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

[data-stagger] > *.astra-in {
  opacity: 1;
  transform: none;
}

/* 2. Magnetic button — transisi saat kembali ke posisi semula */
.btn,
.project-link,
.contact-link {
  transition: transform 0.3s var(--ease), border-color 0.25s var(--ease),
              color 0.25s var(--ease), background 0.25s var(--ease);
  will-change: transform;
}

/* 3. Card tilt — transisi halus saat kursor keluar */
.project,
.side-project,
.principle {
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease);
  will-change: transform;
}

/* 4. Scroll progress bar */
.astra-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent, #7c9cff), var(--accent-2, #b48cff));
  transform-origin: 0 50%;
  transform: scaleX(0);
  z-index: 9999;
  pointer-events: none;
  opacity: 0.85;
}

/* 5. Link underline — tumbuh dari kiri.
   Memakai ::before, BUKAN ::after: styles.css memakai ::after untuk panah
   "→" pada .project-link. Kalau underline memakai ::after, panahnya hilang. */
.astra-underline {
  position: relative;
}

.astra-underline::before {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 0.3s var(--ease);
}

.astra-underline:hover::before,
.astra-underline:focus-visible::before {
  transform: scaleX(1);
}

/* 6. Reduced motion: matikan semuanya */
@media (prefers-reduced-motion: reduce) {
  [data-stagger] > * {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .astra-progress { display: none; }
  .astra-underline::before { display: none; }
  .btn, .project-link, .contact-link,
  .project, .side-project, .principle {
    transition: none;
    transform: none !important;
    will-change: auto;
  }
}