:root {
  --n-ink: #1d2a27;
  --n-muted: #61726c;
  --n-paper: #f3efe6;
  --n-card: #fffdf8;
  --n-line: #d5ddd4;
  --n-moss: #3d755f;
  --n-moss-deep: #245243;
  --n-sun: #db9c3f;
  --n-sky: #a9cbc0;
  --n-alert: #ae5848;
}

.theme-dark {
  --n-ink: #eff6f0;
  --n-muted: #b7c9bf;
  --n-paper: #17211e;
  --n-card: #22302b;
  --n-line: #3a4a42;
  --n-moss: #8bc4a8;
  --n-moss-deep: #c7ead4;
  --n-sun: #f0c36b;
  --n-sky: #4b7165;
  --n-alert: #ef907d;
}

.pet-gestation-tool {
  --n-shadow: 0 1.5rem 4rem rgba(30, 58, 47, 0.12);

  color: var(--n-ink);
  background: var(--n-paper);
  border: 1px solid var(--n-line);
  border-radius: 2rem;
  padding: clamp(1rem, 3vw, 2rem);
  box-shadow: var(--n-shadow);
}

.gestation-tool-intro {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(12rem, 0.8fr);
  gap: 1rem;
  align-items: end;
  margin-bottom: 1.5rem;
}

.gestation-journey,
.gestation-instant-hint,
.gestation-source-note,
.gestation-note,
.gestation-date-block > span,
.gestation-status-detail {
  color: var(--n-muted);
}

.gestation-journey,
.gestation-instant-hint {
  margin: 0;
}

.gestation-journey {
  max-width: 42rem;
  font-size: 1.05rem;
}

.gestation-instant-hint {
  padding: 0.75rem 1rem;
  border-left: 3px solid var(--n-sun);
  font-size: 0.88rem;
}

.gestation-form {
  display: grid;
  gap: 1.25rem;
}

.gestation-species-fieldset {
  border: 0;
  padding: 0;
  margin: 0;
}

.gestation-species-fieldset legend,
.gestation-date-block label {
  display: block;
  font-weight: 800;
  margin-bottom: 0.65rem;
}

.gestation-species-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.65rem;
}

.gestation-species-grid button,
.gestation-presets button {
  font: inherit;
  color: var(--n-ink);
  background: var(--n-card);
  border: 1px solid var(--n-line);
  cursor: pointer;
}

.gestation-species-grid button {
  display: grid;
  justify-items: start;
  gap: 0.2rem;
  min-height: 7rem;
  padding: 0.85rem 0.9rem;
  border-radius: 1.2rem;
  text-align: left;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.gestation-species-grid button:hover,
.gestation-species-grid button:focus-visible {
  border-color: var(--n-moss);
  transform: translateY(-2px);
}

.gestation-species-grid button svg {
  margin-bottom: 0.25rem;
  color: var(--n-moss);
  font-size: 1.6rem;
}

.gestation-species-grid button span {
  font-weight: 800;
}

.gestation-species-grid button small {
  color: var(--n-muted);
  font-size: 0.76rem;
}

.gestation-species-grid button.is-active {
  border-color: var(--n-moss);
  background: var(--n-sky);
  box-shadow: inset 0 0 0 2px var(--n-moss);
  transform: translateY(-2px);
}

.gestation-date-block {
  display: grid;
  gap: 0.45rem;
}

.gestation-date-block input {
  min-height: 3.4rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--n-line);
  border-radius: 1rem;
  color: var(--n-ink);
  background: var(--n-card);
  font: inherit;
  font-size: 1.05rem;
}

.gestation-date-block input:focus-visible {
  border-color: var(--n-moss);
  outline: 3px solid color-mix(in srgb, var(--n-moss) 25%, transparent);
}

.gestation-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.25rem;
}

.gestation-presets button {
  padding: 0.45rem 0.75rem;
  border-radius: 999px;
  font-size: 0.9rem;
}

.gestation-presets button:hover,
.gestation-presets button:focus-visible {
  border-color: var(--n-moss);
  color: var(--n-moss-deep);
}

.gestation-error {
  min-height: 1.25rem;
  margin: 0;
  color: var(--n-alert);
}

.gestation-result {
  position: relative;
  display: grid;
  grid-template-columns: minmax(15rem, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(1rem, 4vw, 3rem);
  align-items: center;
  margin-top: 1.5rem;
  padding: clamp(1.2rem, 3vw, 2rem);
  overflow: hidden;
  border: 1px solid var(--n-line);
  border-radius: 1.5rem;
  background: var(--n-card);
}

.gestation-result-ribbon {
  position: absolute;
  top: 0;
  right: 0;
  padding: 0.45rem 0.75rem;
  border-bottom-left-radius: 0.75rem;
  color: var(--n-moss-deep);
  background: var(--n-sky);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.gestation-scene {
  min-height: 14rem;
  display: grid;
  place-items: center;
}

.gestation-scene-placeholder {
  color: var(--n-muted);
  text-align: center;
}

.gestation-nest-scene {
  display: block;
  width: min(100%, 22rem);
  overflow: visible;
}

.scene-reed {
  fill: none;
  stroke: var(--n-moss);
  stroke-linecap: round;
  stroke-width: 4;
}

.scene-window {
  fill: color-mix(in srgb, var(--n-sun) 20%, transparent);
  stroke: var(--n-sun);
  stroke-width: 1.5;
}

.scene-marker-ring {
  fill: none;
  stroke: var(--n-sun);
  stroke-dasharray: 2 3;
  stroke-width: 2;
}

.scene-marker {
  fill: var(--n-sun);
  stroke: var(--n-card);
  stroke-width: 3;
}

.scene-nest {
  fill: var(--n-moss-deep);
}

.scene-nest-line {
  fill: none;
  stroke: var(--n-sun);
  stroke-linecap: round;
  stroke-width: 2;
}

.scene-egg {
  fill: var(--n-paper);
  stroke: var(--n-sun);
  stroke-width: 2;
}

.scene-label,
.scene-day,
.scene-caption {
  text-anchor: middle;
  fill: var(--n-ink);
}

.scene-label,
.scene-caption {
  font-size: 0.58rem;
}

.scene-label {
  fill: var(--n-muted);
  letter-spacing: 0.08em;
}

.scene-label-accent {
  fill: var(--n-moss-deep);
}

.scene-label-right {
  text-anchor: start;
}

.scene-day {
  font-size: 1.7rem;
  font-weight: 800;
}

.scene-caption {
  fill: var(--n-muted);
}

.gestation-eyebrow {
  margin: 0;
  color: var(--n-moss-deep);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.gestation-status {
  margin: 0.45rem 0 0.15rem;
  font-size: clamp(1.35rem, 4vw, 2.1rem);
  font-weight: 800;
}

.gestation-status[data-tone="late"] {
  color: var(--n-alert);
}

.gestation-status[data-tone="ready"] {
  color: var(--n-moss-deep);
}

.gestation-status-detail {
  margin: 0 0 1.25rem;
}

.gestation-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
}

.gestation-facts div {
  display: grid;
  gap: 0.25rem;
  padding-top: 0.65rem;
  border-top: 1px solid var(--n-line);
}

.gestation-facts span {
  color: var(--n-muted);
  font-size: 0.78rem;
}

.gestation-facts strong {
  font-size: 0.98rem;
}

.gestation-note {
  display: grid;
  gap: 0.25rem;
  margin-top: 1.25rem;
  padding: 1rem 1.15rem;
  border-left: 4px solid var(--n-sun);
  background: color-mix(in srgb, var(--n-sun) 12%, var(--n-card));
}

.gestation-note strong {
  color: var(--n-ink);
}

.gestation-source-note {
  margin: 1rem 0 0;
  font-size: 0.83rem;
}

@media (max-width: 760px) {
  .gestation-tool-intro,
  .gestation-result {
    grid-template-columns: 1fr;
  }

  .gestation-instant-hint {
    max-width: 32rem;
  }
}

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

  .gestation-result {
    padding-top: 2.5rem;
  }

  .gestation-scene {
    min-height: 12rem;
  }
}