/* ============================================
   PROCESS PAGE — Animated Timeline
   ============================================ */

.process-section {
  position: relative;
  padding-bottom: 40px;
}

/* --- Vertical timeline line --- */
.timeline-line {
  position: absolute;
  left: 50%;
  top: 160px;
  bottom: 160px;
  width: 2px;
  background: var(--dark-border);
  transform: translateX(-50%);
  z-index: 1;
}
.timeline-progress {
  width: 100%;
  height: 0%;
  background: linear-gradient(180deg, var(--pink) 0%, var(--pink-light) 100%);
  border-radius: 2px;
  transition: height 0.1s linear;
}

/* --- Process block --- */
.process-block {
  position: relative;
  padding: 60px 0;
  z-index: 2;
}
.process-block::before {
  /* Dot on the timeline */
  content: '';
  position: absolute;
  left: 50%;
  top: 88px;
  width: 16px;
  height: 16px;
  background: var(--black);
  border: 3px solid var(--dark-border);
  border-radius: 50%;
  transform: translateX(-50%);
  z-index: 3;
  transition: border-color 0.5s ease, box-shadow 0.5s ease, background 0.5s ease;
}
.process-block.active::before {
  border-color: var(--pink);
  background: var(--pink);
  box-shadow: 0 0 20px rgba(201, 64, 135, 0.5);
}

/* Alternating layout */
.process-block-inner {
  max-width: 520px;
}
.process-block:nth-child(odd) .process-block-inner {
  margin-right: auto;
  margin-left: 0;
  padding-right: 80px;
}
.process-block:nth-child(even) .process-block-inner {
  margin-left: auto;
  margin-right: 0;
  padding-left: 80px;
}

/* --- Step header --- */
.step-header {
  margin-bottom: 28px;
}

.step-num {
  font-size: 4.5rem;
  font-weight: 800;
  color: var(--pink);
  opacity: 0.5;
  line-height: 1;
  margin-bottom: 8px;
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.process-block.active .step-num {
  opacity: 1;
  transform: scale(1.05);
}

.step-connector {
  width: 60px;
  height: 3px;
  background: var(--pink);
  margin: 16px 0;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.process-block:nth-child(even) .step-connector {
  transform-origin: right;
}
.process-block.active .step-connector {
  transform: scaleX(1);
}

.step-header h3 {
  font-size: 1.75rem;
  margin-bottom: 0;
  color: var(--white);
}

/* --- Step body --- */
.step-body p {
  margin-bottom: 16px;
  font-size: 1.05rem;
  line-height: 1.7;
}

/* Checklist */
.step-checklist {
  list-style: none;
  margin-top: 28px;
}
.check-item {
  padding: 12px 0;
  color: var(--light-grey);
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.95rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.process-block:nth-child(even) .check-item {
  transform: translateX(20px);
}
.check-item:last-child {
  border-bottom: none;
}
.process-block.active .check-item {
  opacity: 1;
  transform: translateX(0);
}
/* Stagger delay for each check item */
.process-block.active .check-item:nth-child(1) { transition-delay: 0.15s; }
.process-block.active .check-item:nth-child(2) { transition-delay: 0.25s; }
.process-block.active .check-item:nth-child(3) { transition-delay: 0.35s; }
.process-block.active .check-item:nth-child(4) { transition-delay: 0.45s; }
.process-block.active .check-item:nth-child(5) { transition-delay: 0.55s; }

.check-item::before {
  content: '✓';
  color: var(--pink);
  font-weight: 700;
  font-size: 0.9rem;
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(201, 64, 135, 0.1);
  border-radius: 50%;
}

/* --- Slide-in animations --- */
.slide-in-left {
  opacity: 0;
  transform: translateX(-60px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.slide-in-right {
  opacity: 0;
  transform: translateX(60px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.process-block.active .slide-in-left,
.process-block.active .slide-in-right {
  opacity: 1;
  transform: translateX(0);
}

/* --- Responsive --- */
@media (max-width: 900px) {
  .timeline-line {
    left: 24px;
  }
  .process-block::before {
    left: 24px;
  }
  .process-block-inner,
  .process-block:nth-child(odd) .process-block-inner,
  .process-block:nth-child(even) .process-block-inner {
    max-width: 100%;
    margin-left: 60px;
    margin-right: 0;
    padding-left: 0;
    padding-right: 0;
  }
  .slide-in-left,
  .slide-in-right {
    transform: translateX(40px);
  }
  .process-block.active .slide-in-left,
  .process-block.active .slide-in-right {
    transform: translateX(0);
  }
  .check-item,
  .process-block:nth-child(even) .check-item {
    transform: translateX(20px);
  }
  .process-block.active .check-item {
    transform: translateX(0);
  }
  .step-connector {
    transform-origin: left !important;
  }
}

@media (max-width: 500px) {
  .timeline-line { left: 16px; }
  .process-block::before { left: 16px; width: 12px; height: 12px; }
  .process-block-inner,
  .process-block:nth-child(odd) .process-block-inner,
  .process-block:nth-child(even) .process-block-inner {
    margin-left: 44px;
  }
  .step-num { font-size: 3rem; }
  .process-block { padding: 36px 0; }
}