/* ==========================================
   VERTICAL TIMELINE — approach.html
   ========================================== */
/* --- Staggered 2-Column Timeline --- */
.stagger-section {
  padding-bottom: 40px;
}

.stagger-tl {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 56px;
  max-width: 1100px;
  margin: 0 auto;
}

/* Center wire */
.stagger-tl__wire {
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 4px;
  transform: translateX(-50%);
  z-index: 0;
}

.stagger-tl__svg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.stagger-tl__wire-bg {
  stroke: var(--color-border);
  stroke-width: 2;
}

.stagger-tl__wire-line {
  stroke: var(--color-text-heading);
  stroke-width: 2;
  stroke-dasharray: 4000;
  stroke-dashoffset: 4000;
  transition: stroke-dashoffset 0.05s linear;
}

/* Columns */
.stagger-tl__col {
  display: flex;
  flex-direction: column;
  gap: 48px;
  z-index: 1;
}

.stagger-tl__col--right {
  padding-top: 260px;
}

/* Node circles */
.stagger-tl__node {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 3px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  position: relative;
  z-index: 2;
  transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.stagger-tl__node span {
  font-size: 0.875rem;
  font-weight: 800;
  color: var(--color-text-muted);
  font-family: var(--font-mono), monospace;
  transition: color 0.4s ease;
}

.stagger-tl__node.reached {
  background: var(--color-text-heading);
  border-color: var(--color-text-heading);
  box-shadow: 0 0 0 8px rgba(17, 17, 17, 0.08), 0 4px 20px rgba(0, 0, 0, 0.15);
}

.stagger-tl__node.reached span {
  color: #fff;
}

.stagger-tl__node.reached::after {
  content: '';
  position: absolute;
  inset: -10px;
  border-radius: 50%;
  border: 1px solid rgba(17, 17, 17, 0.12);
  animation: stagger-pulse 2s ease-out infinite;
}

@keyframes stagger-pulse {
  0%   { transform: scale(0.9); opacity: 1; }
  100% { transform: scale(1.3); opacity: 0; }
}

/* Cards */
.stagger-tl__card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all var(--transition-medium);
}

.stagger-tl__card:hover {
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.06);
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
}

.stagger-tl__card-img {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/10;
}

.stagger-tl__card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s ease;
}

.stagger-tl__card:hover .stagger-tl__card-img img {
  transform: scale(1.04);
}

.stagger-tl__card-body {
  padding: 28px 28px 32px;
}

.stagger-tl__card-body h3 {
  font-size: 1.25rem;
  margin-bottom: 10px;
  letter-spacing: -0.02em;
}

.stagger-tl__card-body > p {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  margin-bottom: 18px;
  line-height: 1.65;
}

/* Checklist */
.stagger-tl__list {
  list-style: none;
  padding: 0;
  margin: 0 0 18px;
}

.stagger-tl__list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 5px 0;
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.stagger-tl__list li::before {
  content: '';
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  margin-top: 2px;
  border-radius: 50%;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='none' stroke='%23111111' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 8px;
}

/* Responsive */
@media (max-width: 900px) {
  .stagger-tl {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .stagger-tl__col--right {
    padding-top: 0;
  }
  .stagger-tl__col {
    gap: 36px;
  }
  .stagger-tl__wire {
    left: 24px;
    transform: none;
  }
  .stagger-tl__node {
    width: 40px;
    height: 40px;
    margin: 0 0 16px 4px;
  }
  .stagger-tl__card {
    margin-left: 52px;
  }
}

@media (max-width: 480px) {
  .stagger-tl__wire { left: 16px; }
  .stagger-tl__node { width: 36px; height: 36px; margin-left: 0; }
  .stagger-tl__node span { font-size: 0.75rem; }
  .stagger-tl__card { margin-left: 40px; }
  .stagger-tl__card-body { padding: 20px; }
}

/* --- Approach Hero (Light, matching index.html style) --- */
.hero--approach-light {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 140px 0 80px;
  overflow: hidden;
  background: #F0EDE8;
}

.hero--approach-light__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero--approach-light__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  opacity: 0.18;
  filter: saturate(0.3);
}

.hero--approach-light__overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(240, 237, 232, 0.6) 0%, rgba(240, 237, 232, 0.3) 60%, rgba(240, 237, 232, 0.8) 100%);
}

.hero--approach-light__content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.hero--approach-light h1 {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  margin-bottom: 16px;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--color-text-heading);
}

.hero--approach-light p {
  font-size: 1.0625rem;
  max-width: 520px;
  margin: 0 auto 36px;
  color: var(--color-text-secondary);
}

.hero--approach-light__phases {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

.hero--approach-light__tag {
  display: inline-flex;
  padding: 10px 22px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-heading);
  transition: all var(--transition-fast);
  backdrop-filter: blur(8px);
  background: rgba(255,255,255,0.7);
  letter-spacing: 0.02em;
}

.hero--approach-light__tag:hover {
  background: var(--color-text-heading);
  color: #fff;
  border-color: var(--color-text-heading);
}

@media (max-width: 768px) {
  .hero--approach-light { min-height: auto; padding: 120px 0 60px; }
  .hero--approach-light__phases { gap: 8px; }
  .hero--approach-light__tag { padding: 8px 16px; font-size: 0.75rem; }
}