/* ============================================================
   ANIMATIONS — Midnight Architect
   Orchestrated reveals, scroll triggers, micro-interactions
   ============================================================ */

/* ========== FADE IN (scroll-triggered) ========== */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========== SLIDE IN ========== */
.slide-in-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.slide-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.slide-in-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.slide-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* ========== SCALE IN ========== */
.scale-in {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.scale-in.visible {
  opacity: 1;
  transform: scale(1);
}

/* ========== STAGGER DELAYS ========== */
.stagger-1 { transition-delay: 0.05s; }
.stagger-2 { transition-delay: 0.1s; }
.stagger-3 { transition-delay: 0.15s; }
.stagger-4 { transition-delay: 0.2s; }
.stagger-5 { transition-delay: 0.25s; }
.stagger-6 { transition-delay: 0.3s; }
.stagger-7 { transition-delay: 0.35s; }
.stagger-8 { transition-delay: 0.4s; }

/* ========== TIMELINE ITEMS ========== */
.timeline__item {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.timeline__item.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========== SKILL BAR FILL ========== */
.skill-bar-fill {
  width: 0;
  transition: width 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.skill-bar-fill.animate {
  width: var(--skill-width, 0);
}

/* ========== HERO COUNTER ANIMATION ========== */
@keyframes count-up {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ========== LOADING SPINNER ========== */
.spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(10, 14, 26, 0.2);
  border-top-color: var(--bg-primary, #0a0e1a);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ========== HOVER CARD GLOW ========== */
@keyframes subtle-glow {
  0%, 100% { box-shadow: 0 0 20px rgba(34, 211, 238, 0.05); }
  50% { box-shadow: 0 0 40px rgba(34, 211, 238, 0.1); }
}

/* ========== AREA TOGGLE ANIMATION ========== */
.timeline__area-content {
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              opacity 0.3s ease;
}

/* ========== REDUCED MOTION ========== */
@media (prefers-reduced-motion: reduce) {
  .fade-in,
  .slide-in-left,
  .slide-in-right,
  .scale-in,
  .timeline__item {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .skill-bar-fill {
    transition: none;
  }

  .skill-bar-fill.animate {
    width: var(--skill-width, 0);
  }
}