/* ============================================
   ATAMAP ASSOCIATES — Animated Process Flow
   Feature #26 — Service Sub-Pages
   ============================================ */

.process-flow {
  padding: var(--space-10) 0;
}

.process-flow__header {
  text-align: center;
  margin-bottom: var(--space-12);
}

.process-flow__steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  position: relative;
  gap: 0;
  max-width: 900px;
  margin: 0 auto;
}

/* Connecting Line */
.process-flow__line {
  position: absolute;
  top: 40px;
  left: 12.5%;
  right: 12.5%;
  height: 3px;
  background: var(--color-graphite-500);
  z-index: 0;
}

.process-flow__line-fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-hover));
  border-radius: 2px;
  transition: width 0.1s linear;
}

.process-flow__line.is-animated .process-flow__line-fill {
  /* Width set by JS */
}

/* Step */
.process-flow__step {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  z-index: 1;
  padding: 0 var(--space-3);
}

.process-flow__number {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--color-pure-white);
  border: 3px solid var(--color-graphite-500);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  position: relative;
  transition: all var(--duration-normal) var(--ease-spring-1);
}

.process-flow__step.is-active .process-flow__number {
  border-color: var(--color-accent);
  background: var(--color-accent-dim);
  box-shadow: var(--shadow-glow);
}

.process-flow__number-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.process-flow__number-digit {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-steel-300);
  line-height: 1;
  transition: color var(--duration-normal) var(--ease-spring-settle);
}

.process-flow__step.is-active .process-flow__number-digit {
  color: var(--color-accent);
}

.process-flow__number-icon {
  width: 24px;
  height: 24px;
  color: var(--color-steel-400);
  margin-top: 2px;
  transition: color var(--duration-normal) var(--ease-spring-settle);
}

.process-flow__step.is-active .process-flow__number-icon {
  color: var(--color-accent);
}

.process-flow__title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-silver-100);
  margin-bottom: var(--space-2);
  transition: color var(--duration-normal) var(--ease-spring-settle);
}

.process-flow__step.is-active .process-flow__title {
  color: var(--color-accent);
}

.process-flow__desc {
  font-size: var(--font-size-xs);
  color: var(--color-steel-400);
  line-height: var(--line-height-relaxed);
  max-width: 180px;
  opacity: 0;
  transform: translateY(8px);
  transition: all var(--duration-normal) var(--ease-spring-settle);
}

.process-flow__step.is-active .process-flow__desc {
  opacity: 1;
  transform: translateY(0);
}

/* Reveal animation */
.process-flow__step {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--duration-slow) var(--ease-spring-1),
              transform var(--duration-slow) var(--ease-spring-1);
}

.process-flow__step.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Mobile: Vertical Layout ── */
@media (max-width: 767px) {
  .process-flow__steps {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-6);
    padding-left: var(--space-4);
  }

  .process-flow__line {
    top: 40px;
    left: 39px;
    right: auto;
    bottom: 0;
    width: 3px;
    height: auto;
  }

  .process-flow__line-fill {
    width: 100% !important;
    height: 0;
    transition: height 0.1s linear;
  }

  .process-flow__step {
    flex-direction: row;
    text-align: left;
    padding: 0;
    gap: var(--space-5);
  }

  .process-flow__number {
    margin-bottom: 0;
    width: 64px;
    height: 64px;
    flex-shrink: 0;
  }

  .process-flow__number-digit {
    font-size: var(--font-size-lg);
  }

  .process-flow__desc {
    max-width: none;
    opacity: 1;
    transform: none;
  }

  .process-flow__step.is-active .process-flow__desc {
    opacity: 1;
    transform: none;
  }

  .process-flow__step.is-visible {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ── Tablet ── */
@media (min-width: 768px) and (max-width: 1023px) {
  .process-flow__number {
    width: 68px;
    height: 68px;
  }

  .process-flow__desc {
    max-width: 150px;
  }
}