/* ============================================================
   ZS RECYCLING — Circular Economy Process Styles
   ============================================================ */

.process-section {
  background: linear-gradient(180deg, #070f1e 0%, #0a1628 100%);
  position: relative;
  overflow: hidden;
}

/* Background geometric lines */
.process-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(29, 111, 164, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(29, 111, 164, 0.05) 1px, transparent 1px);
  background-size: 80px 80px;
  pointer-events: none;
}

/* Glow blobs */
.process-section::after {
  content: '';
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(29, 111, 164, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.process-inner {
  position: relative;
  z-index: 1;
}

/* ---- Step Timeline ---- */
.process-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  max-width: 800px;
  margin: 0 auto;
  position: relative;
}

/* Vertical connecting line */
.process-steps::before {
  content: '';
  position: absolute;
  left: 2.5rem;
  top: 3rem;
  bottom: 3rem;
  width: 2px;
  background: linear-gradient(
    to bottom,
    transparent,
    var(--color-blue) 10%,
    var(--color-accent) 50%,
    var(--color-blue) 90%,
    transparent
  );
}

/* ---- Individual Step ---- */
.process-step {
  display: flex;
  align-items: flex-start;
  gap: 2rem;
  padding: 2rem 2rem 2rem 0;
  position: relative;
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.process-step.visible {
  opacity: 1;
  transform: translateX(0);
}

.process-step:nth-child(1) { transition-delay: 0s; }
.process-step:nth-child(2) { transition-delay: 0.15s; }
.process-step:nth-child(3) { transition-delay: 0.30s; }
.process-step:nth-child(4) { transition-delay: 0.45s; }

/* Step icon container */
.step-icon-wrap {
  position: relative;
  flex-shrink: 0;
  width: 5rem;
  height: 5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Outer ring */
.step-icon-wrap::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1.5px solid rgba(29, 111, 164, 0.35);
  animation: ringPulse 3s ease infinite;
}

.process-step:nth-child(2) .step-icon-wrap::before { animation-delay: 0.5s; }
.process-step:nth-child(3) .step-icon-wrap::before { animation-delay: 1s; }
.process-step:nth-child(4) .step-icon-wrap::before { animation-delay: 1.5s; }

@keyframes ringPulse {
  0%, 100% { transform: scale(1);    opacity: 0.5; }
  50%       { transform: scale(1.12); opacity: 1; }
}

.step-icon-bg {
  width: 4rem;
  height: 4rem;
  background: linear-gradient(135deg, var(--color-bg-card), var(--color-surface));
  border: 1.5px solid rgba(29, 111, 164, 0.4);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 24px rgba(29, 111, 164, 0.25);
  transition: var(--transition);
  z-index: 1;
}

.process-step:hover .step-icon-bg {
  background: linear-gradient(135deg, var(--color-blue), var(--color-blue-light));
  box-shadow: 0 0 40px rgba(29, 111, 164, 0.5);
  border-color: var(--color-accent);
}

.step-icon-bg svg {
  color: var(--color-accent);
  transition: var(--transition);
}

.process-step:hover .step-icon-bg svg {
  color: var(--color-white);
}

/* Step content */
.step-content {
  flex: 1;
  padding-top: 0.75rem;
}

.step-number {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-blue-light);
  margin-bottom: 0.35rem;
}

.step-content h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  color: var(--color-white);
}

.step-content p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  max-width: 480px;
  line-height: 1.7;
}

.step-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.step-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.7rem;
  background: rgba(79, 195, 247, 0.08);
  border: 1px solid rgba(79, 195, 247, 0.2);
  border-radius: 50px;
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.04em;
}

/* ---- Compact 2-column layout for Services page ---- */
.process-steps-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  max-width: 1100px;
  margin: 0 auto;
}

.process-step-card {
  background: rgba(17, 31, 54, 0.7);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  backdrop-filter: blur(8px);
  transition: var(--transition);
  opacity: 0;
  transform: translateY(20px);
}

.process-step-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.process-step-card:hover {
  border-color: rgba(29, 111, 164, 0.5);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(29, 111, 164, 0.15);
}

.step-card-header {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.step-card-icon {
  width: 3rem;
  height: 3rem;
  background: linear-gradient(135deg, rgba(29, 111, 164, 0.2), rgba(79, 195, 247, 0.1));
  border: 1px solid rgba(29, 111, 164, 0.35);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.step-card-icon svg {
  color: var(--color-accent);
}

/* ---- Items Grid ---- */
.items-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.item-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem 1rem;
  text-align: center;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.item-card:hover {
  border-color: rgba(29, 111, 164, 0.5);
  background: var(--color-surface);
  transform: translateY(-4px);
}

.item-card svg {
  color: var(--color-blue-light);
  transition: var(--transition);
}

.item-card:hover svg {
  color: var(--color-accent);
}

.item-card span {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-silver-light);
  text-align: center;
}

/* ---- Services Cards ---- */
.services-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.service-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2rem;
  transition: var(--transition);
}

.service-card:hover {
  border-color: rgba(29, 111, 164, 0.4);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.service-card-icon {
  width: 3rem;
  height: 3rem;
  background: linear-gradient(135deg, rgba(29, 111, 164, 0.15), rgba(79, 195, 247, 0.08));
  border: 1px solid rgba(29, 111, 164, 0.3);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.service-card-icon svg {
  color: var(--color-accent);
}

.service-card h3 {
  margin-bottom: 0.75rem;
}

.service-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}