/* ==========================================================================
   HOW IT WORKS PAGE LAYOUT STYLES
   ========================================================================== */

.page-header {
  text-align: center;
  max-width: 800px;
  margin: 40px auto 60px;
}

.page-title {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 700;
  color: var(--color-on-background);
  margin-bottom: 16px;
}

@media (min-width: 768px) {
  .page-title {
    font-size: 48px;
  }
}

.page-desc {
  font-family: var(--font-body);
  font-size: 18px;
  color: var(--color-secondary-text);
  line-height: 1.6;
}

/* Timeline vertical container */
.timeline-container {
  position: relative;
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 0;
}

/* Central vertical line */
.timeline-container::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 24px; /* aligned with icon badge on mobile */
  width: 2px;
  background-color: var(--color-outline-variant);
  z-index: 0;
}

@media (min-width: 768px) {
  .timeline-container::before {
    left: 50%;
    transform: translateX(-50%);
  }
}

/* Timeline row item */
.timeline-row {
  position: relative;
  display: flex;
  flex-direction: column;
  margin-bottom: 60px;
}

.timeline-row:last-child {
  margin-bottom: 0;
}

@media (min-width: 768px) {
  .timeline-row {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

/* Central icon node */
.timeline-badge {
  position: absolute;
  left: 0;
  top: 12px;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background-color: var(--color-background);
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  box-shadow: 0 0 0 8px var(--color-surface);
  transition: all var(--transition-normal);
}

.timeline-badge.badge-success {
  border-color: var(--color-success);
  color: var(--color-success);
}

.timeline-row:hover .timeline-badge {
  transform: scale(1.1);
  background-color: var(--color-primary);
  color: var(--color-on-primary);
  box-shadow: 0 0 15px rgba(255, 107, 53, 0.3);
}

.timeline-row:hover .timeline-badge.badge-success {
  background-color: var(--color-success);
  color: var(--color-on-primary);
  box-shadow: 0 0 15px rgba(52, 199, 89, 0.3);
}

@media (min-width: 768px) {
  .timeline-badge {
    left: 50%;
    transform: translateX(-50%);
    top: 50%;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 0 12px var(--color-surface);
  }
  .timeline-row:hover .timeline-badge {
    transform: translate(-50%, -50%) scale(1.1);
  }
}

/* Timeline card content panel */
.timeline-content {
  width: 100%;
  padding-left: 72px; /* space for left badge */
}

@media (min-width: 768px) {
  .timeline-content {
    width: 45%;
    padding-left: 0;
  }

  /* Left-side items */
  .timeline-row:nth-child(odd) .timeline-content {
    text-align: right;
    order: 1;
  }

  /* Right-side items */
  .timeline-row:nth-child(even) .timeline-content {
    text-align: left;
    order: 2;
  }

  /* Empty spacer column to force layout balance */
  .timeline-spacer {
    width: 45%;
    order: 2;
  }

  .timeline-row:nth-child(even) .timeline-spacer {
    order: 1;
  }
}

.timeline-inner-card {
  background-color: var(--color-background);
  border-radius: var(--radius-card);
  padding: 32px;
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(210, 210, 217, 0.4);
  position: relative;
  overflow: hidden;
  transition: all var(--transition-normal);
}

.timeline-inner-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(171, 53, 0, 0.06);
}

.timeline-inner-card.card-success:hover {
  box-shadow: 0 8px 30px rgba(52, 199, 89, 0.08);
}

.timeline-step-tag {
  font-size: 12px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 8px;
  display: block;
}

.timeline-step-tag.tag-success {
  color: var(--color-success);
}

.timeline-card-title {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 600;
  color: var(--color-on-surface);
  margin-bottom: 12px;
}

.timeline-card-desc {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.5;
  color: var(--color-secondary-text);
}

/* ==========================================================================
   RESPONSIVE OVERRIDES
   ========================================================================== */

@media (max-width: 639px) {
  .timeline-container::before {
    display: none;
  }
}

@media (max-width: 479px) {
  .page-header {
    margin: 24px auto 40px;
  }
  .page-title {
    font-size: 26px;
  }
  .timeline-inner-card {
    padding: 20px;
  }
  .timeline-card-title {
    font-size: 20px;
  }
}