.cts-aec {
  --cts-aec-bg: #111827;
  --cts-aec-fg: #ffffff;
  --cts-aec-muted: #cbd5e1;
  --cts-aec-card: #ffffff;
  --cts-aec-card-fg: #111827;
  --cts-aec-accent: #fbbf24;
  background: var(--cts-aec-bg);
  border: 1px solid transparent;
  border-radius: 1rem;
  box-sizing: border-box;
  color: var(--cts-aec-fg);
  margin: 2rem 0;
  max-width: 100%;
  padding: clamp(1.25rem, 4vw, 2.5rem);
}

.cts-aec *,
.cts-aec *::before,
.cts-aec *::after {
  box-sizing: border-box;
}

.cts-aec[hidden],
.cts-aec [hidden] {
  display: none !important;
}

.cts-aec--theme-ocean {
  --cts-aec-bg: #083344;
  --cts-aec-muted: #cffafe;
  --cts-aec-accent: #67e8f9;
  --cts-aec-card-fg: #083344;
}

.cts-aec--theme-paper {
  --cts-aec-bg: #fffbeb;
  --cts-aec-fg: #292524;
  --cts-aec-muted: #57534e;
  --cts-aec-card: #ffffff;
  --cts-aec-card-fg: #292524;
  --cts-aec-accent: #b45309;
  border-color: #d6d3d1;
}

.cts-aec__eyebrow {
  color: var(--cts-aec-accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  margin: 0 0 0.5rem;
  text-transform: uppercase;
}

.cts-aec h2 {
  color: inherit;
  font-size: clamp(1.75rem, 4vw, 3rem);
  line-height: 1.08;
  margin: 0;
}

.cts-aec__description,
.cts-aec__target {
  color: var(--cts-aec-muted);
  max-width: 60ch;
}

.cts-aec__description {
  font-size: 1.05rem;
  margin: 0.75rem 0 0;
}

.cts-aec__target {
  font-size: 0.95rem;
  margin: 0.7rem 0 1.5rem;
}

.cts-aec__target time {
  font-weight: 700;
}

.cts-aec__timer {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 1.5rem;
}

.cts-aec__unit {
  background: var(--cts-aec-card);
  border-radius: 0.7rem;
  color: var(--cts-aec-card-fg);
  display: grid;
  min-width: 0;
  padding: 1rem 0.5rem;
  text-align: center;
}

.cts-aec__unit strong {
  font-size: clamp(1.75rem, 6vw, 3.6rem);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.cts-aec__unit span {
  color: inherit;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  margin-top: 0.45rem;
  opacity: 0.75;
  text-transform: uppercase;
}

.cts-aec--layout-compact .cts-aec__timer {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
}

.cts-aec--layout-compact .cts-aec__unit {
  align-items: baseline;
  background: transparent;
  color: var(--cts-aec-fg);
  display: flex;
  gap: 0.35rem;
  padding: 0;
}

.cts-aec--layout-compact .cts-aec__unit strong {
  font-size: clamp(1.5rem, 4vw, 2.4rem);
}

.cts-aec__actions {
  margin-top: 1.25rem;
}

.cts-aec__button {
  background: var(--cts-aec-accent);
  border: 2px solid var(--cts-aec-accent);
  border-radius: 0.5rem;
  color: #111827;
  display: inline-block;
  font-weight: 800;
  padding: 0.7rem 1rem;
  text-decoration: none;
}

.cts-aec__button:hover {
  filter: brightness(0.94);
}

.cts-aec__button:focus-visible {
  outline: 3px solid var(--cts-aec-fg);
  outline-offset: 3px;
}

.cts-aec__complete {
  background: #dcfce7;
  border-radius: 0.65rem;
  color: #14532d;
  margin-top: 1.25rem;
  padding: 1rem;
}

.cts-aec__complete p {
  font-size: 1.1rem;
  font-weight: 800;
  margin: 0;
}

.cts-aec__complete .cts-aec__button {
  background: #166534;
  border-color: #166534;
  color: #ffffff;
  margin-top: 0.8rem;
}

@media (max-width: 520px) {
  .cts-aec__timer {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cts-aec--layout-compact .cts-aec__timer {
    display: flex;
  }
}

@media (prefers-reduced-motion: reduce) {
  .cts-aec *,
  .cts-aec *::before,
  .cts-aec *::after {
    scroll-behavior: auto !important;
  }
}