/* Source: widgets/10.html — keep CSS identical to the HTML. */
.edge-tl4 {
  --edge-tl4-primary: #094a3c;
  --edge-tl4-secondary: #daa630;
  --edge-tl4-tertiary: #000000;
  --edge-tl4-bg: #f8f9f8;
  --edge-tl4-card-bg: #ffffff;
  --edge-tl4-text: #1a1a1a;
  --edge-tl4-muted: #4a4a4a;
  --edge-tl4-line: rgba(9, 74, 60, 0.18);
  --edge-tl4-heading-font: "Plus Jakarta Sans", sans-serif;
  --edge-tl4-body-font: "Poppins", sans-serif;

  width: 100%;
  background:
    radial-gradient(ellipse 70% 45% at 100% 0%, rgba(218, 166, 48, 0.07) 0%, transparent 55%),
    radial-gradient(ellipse 55% 40% at 0% 100%, rgba(9, 74, 60, 0.06) 0%, transparent 50%),
    var(--edge-tl4-bg);
  color: var(--edge-tl4-text);
  font-family: var(--edge-tl4-body-font);
  padding: clamp(3rem, 6vw, 5rem) clamp(1.25rem, 4vw, 3rem);
  box-sizing: border-box;
}

.edge-tl4 *,
.edge-tl4 *::before,
.edge-tl4 *::after {
  box-sizing: border-box;
}

.edge-tl4__inner {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
}

.edge-tl4__header {
  text-align: center;
  max-width: 36rem;
  margin: 0 auto clamp(2.75rem, 5vw, 4rem);
}

.edge-tl4__label {
  display: inline-block;
  font-family: var(--edge-tl4-heading-font);
  font-size: clamp(0.75rem, 1.2vw, 0.8125rem);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--edge-tl4-secondary);
  margin-bottom: 0.75rem;
}

.edge-tl4__headline {
  font-family: var(--edge-tl4-heading-font);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--edge-tl4-primary);
  margin: 0;
}

.edge-tl4__track {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
}

.edge-tl4__track::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0.75rem;
  bottom: 0.75rem;
  width: 2px;
  transform: translateX(-50%);
  background: linear-gradient(
    180deg,
    rgba(9, 74, 60, 0.12) 0%,
    rgba(9, 74, 60, 0.22) 45%,
    var(--edge-tl4-secondary) 72%,
    var(--edge-tl4-primary) 100%
  );
  border-radius: 2px;
}

.edge-tl4__item {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  gap: clamp(1rem, 2.5vw, 2rem);
  align-items: start;
  margin-bottom: clamp(1.75rem, 3.5vw, 2.5rem);
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.65s ease,
    transform 0.65s cubic-bezier(0.22, 1, 0.36, 1);
}

.edge-tl4__item:last-child {
  margin-bottom: 0;
}

.edge-tl4__item.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.edge-tl4__item:nth-child(1) { transition-delay: 0ms; }
.edge-tl4__item:nth-child(2) { transition-delay: 80ms; }
.edge-tl4__item:nth-child(3) { transition-delay: 160ms; }
.edge-tl4__item:nth-child(4) { transition-delay: 240ms; }
.edge-tl4__item:nth-child(5) { transition-delay: 320ms; }
.edge-tl4__item:nth-child(6) { transition-delay: 400ms; }
.edge-tl4__item:nth-child(7) { transition-delay: 480ms; }
.edge-tl4__item:nth-child(8) { transition-delay: 560ms; }

.edge-tl4__item--left .edge-tl4__card {
  grid-column: 1;
  justify-self: end;
}

.edge-tl4__item--right .edge-tl4__card {
  grid-column: 3;
  justify-self: start;
}

.edge-tl4__marker {
  grid-column: 2;
  grid-row: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-self: center;
  z-index: 1;
}

.edge-tl4__dot {
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  background: var(--edge-tl4-card-bg);
  border: 3px solid var(--edge-tl4-primary);
  box-shadow: 0 0 0 4px rgba(9, 74, 60, 0.08);
  flex-shrink: 0;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.edge-tl4__item:hover .edge-tl4__dot {
  transform: scale(1.15);
  box-shadow: 0 0 0 6px rgba(9, 74, 60, 0.12);
}

.edge-tl4__item--revival .edge-tl4__dot {
  border-color: var(--edge-tl4-secondary);
  box-shadow: 0 0 0 4px rgba(218, 166, 48, 0.18);
}

.edge-tl4__item--revival:hover .edge-tl4__dot {
  box-shadow: 0 0 0 6px rgba(218, 166, 48, 0.28);
}

.edge-tl4__card {
  width: 100%;
  max-width: 22rem;
  background: var(--edge-tl4-card-bg);
  border: 1px solid rgba(9, 74, 60, 0.1);
  border-radius: 14px;
  padding: clamp(1.25rem, 2.5vw, 1.625rem);
  box-shadow: 0 4px 20px rgba(9, 74, 60, 0.05);
  transition:
    border-color 0.3s ease,
    box-shadow 0.3s ease,
    transform 0.3s ease;
}

.edge-tl4__item--left .edge-tl4__card {
  text-align: right;
}

.edge-tl4__item--right .edge-tl4__card {
  text-align: left;
}

.edge-tl4__item:hover .edge-tl4__card {
  border-color: rgba(9, 74, 60, 0.2);
  box-shadow: 0 10px 32px rgba(9, 74, 60, 0.1);
  transform: translateY(-2px);
}

.edge-tl4__item--revival .edge-tl4__card {
  border-color: rgba(218, 166, 48, 0.35);
  background:
    linear-gradient(135deg, rgba(218, 166, 48, 0.06) 0%, transparent 55%),
    var(--edge-tl4-card-bg);
}

.edge-tl4__item--revival:hover .edge-tl4__card {
  border-color: rgba(218, 166, 48, 0.55);
  box-shadow: 0 10px 32px rgba(218, 166, 48, 0.12);
}

.edge-tl4__era {
  display: inline-block;
  font-family: var(--edge-tl4-heading-font);
  font-size: clamp(0.9375rem, 1.6vw, 1.0625rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--edge-tl4-primary);
  margin-bottom: 0.5rem;
}

.edge-tl4__item--revival .edge-tl4__era {
  color: var(--edge-tl4-secondary);
}

.edge-tl4__text {
  font-size: clamp(0.875rem, 1.4vw, 0.9375rem);
  font-weight: 400;
  line-height: 1.65;
  color: var(--edge-tl4-muted);
  margin: 0;
}

.edge-tl4__legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: clamp(1rem, 2.5vw, 2rem);
  margin-top: clamp(2.5rem, 5vw, 3.5rem);
  padding-top: clamp(1.75rem, 3vw, 2.25rem);
  border-top: 1px solid rgba(9, 74, 60, 0.1);
}

.edge-tl4__legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: clamp(0.75rem, 1.2vw, 0.8125rem);
  font-weight: 500;
  color: var(--edge-tl4-muted);
}

.edge-tl4__legend-dot {
  width: 0.625rem;
  height: 0.625rem;
  border-radius: 50%;
  flex-shrink: 0;
}

.edge-tl4__legend-dot--past {
  background: var(--edge-tl4-card-bg);
  border: 2px solid var(--edge-tl4-primary);
}

.edge-tl4__legend-dot--revival {
  background: var(--edge-tl4-card-bg);
  border: 2px solid var(--edge-tl4-secondary);
}

@media (max-width: 720px) {
  .edge-tl4__track::before {
    left: 0.4375rem;
    transform: none;
  }

  .edge-tl4__item {
    display: block;
    padding-left: 2rem;
    margin-bottom: 1.5rem;
  }

  .edge-tl4__marker {
    position: absolute;
    left: 0;
    top: 1.375rem;
  }

  .edge-tl4__card {
    max-width: none;
    text-align: left !important;
  }

  .edge-tl4__item:hover .edge-tl4__card {
    transform: none;
  }
}

@media (max-width: 380px) {
  .edge-tl4__headline {
    font-size: 1.5rem;
  }

  .edge-tl4__legend {
    flex-direction: column;
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .edge-tl4__item {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .edge-tl4__item:hover .edge-tl4__card,
  .edge-tl4__item:hover .edge-tl4__dot {
    transform: none;
  }
}