/* Daylight-cycle paper only — phase strip + wood-framed charts.
   Linked from articles/daylight-cycle.html; copied to the WP theme as
   assets/css/papers/daylight-cycle.css (not loaded on other pages). */
:root {
  --wood: #5c4030;
  --wood-deep: #3f2a1e;
  --day: #3d9140;
  --day-deep: #2a6b2e;
  --sunset: #e07020;
  --sunset-deep: #b85712;
  --night: #2a3568;
  --night-deep: #1a2248;
  --sunrise: #c43c28;
  --sunrise-deep: #9a2e1e;
  --font-pixel: var(--font-display, "Sora", system-ui, sans-serif);
}
/* Phase tab strip, like the reference infographic */
.phase-strip {
  display: grid;
  grid-template-columns: 12fr 1fr 10fr 1fr;
  gap: 3px;
  margin: 1.25rem 0 1rem;
  border: 3px solid var(--wood-deep);
  background: var(--wood-deep);
  image-rendering: pixelated;
}
.phase-tab {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.65rem 0.35rem;
  min-height: 4.25rem;
  color: #fff;
  text-shadow: 1px 1px 0 rgba(0,0,0,0.35);
  position: relative;
  overflow: hidden;
}
.phase-tab__label {
  font-family: var(--font-pixel);
  font-size: clamp(0.62rem, 2.2vw, 0.85rem);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  z-index: 1;
}
.phase-tab__icon {
  width: 1.35rem;
  height: 1.35rem;
  image-rendering: pixelated;
  z-index: 1;
  filter: drop-shadow(1px 1px 0 rgba(0,0,0,0.25));
}
.phase-tab--day {
  background: linear-gradient(180deg, rgba(125, 190, 90, 0.35) 0%, transparent 45%), repeating-linear-gradient(90deg, #4a9e3f 0 8px, #3d8a35 8px 16px), var(--day);
}
.phase-tab--sunset {
  background: linear-gradient(180deg, #f0a040 0%, #d46212 55%, #8a3510 100%);
}
.phase-tab--night {
  background: radial-gradient(circle at 70% 25%, rgba(255,255,255,0.35) 0 1px, transparent 2px), radial-gradient(circle at 30% 60%, rgba(255,255,255,0.25) 0 1px, transparent 2px), linear-gradient(180deg, #1e2a5c 0%, #121a38 100%);
}
.phase-tab--sunrise {
  background: linear-gradient(180deg, #f07840 0%, #c43c28 50%, #7a2018 100%);
}
/* Infographic chart panels */
.chart-panel {
  background: var(--card);
  border: 3px solid var(--wood);
  margin: 1.25rem 0 1.75rem;
  padding: 1.1rem 1rem 0.85rem;
  position: relative;
  box-shadow: 4px 4px 0 rgba(92, 64, 48, 0.1);
}
.chart-panel::before,
.chart-panel::after {
  content: "";
  position: absolute;
  width: 10px;
  height: 10px;
  border-color: var(--wood);
  border-style: solid;
  pointer-events: none;
}
.chart-panel::before {
  top: 4px;
  left: 4px;
  border-width: 3px 0 0 3px;
}
.chart-panel::after {
  bottom: 4px;
  right: 4px;
  border-width: 0 3px 3px 0;
}
.chart-panel h3 {
  margin: 0 0 0.2rem;
  font-family: var(--font-pixel);
  font-size: 1.05rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink);
}
.chart-panel .caption {
  font-size: 0.82rem;
  color: var(--muted);
  margin: 0 0 0.75rem;
}
.chart-wrap {
  position: relative;
  height: 300px;
}
.chart-wrap.tall {
  height: 360px;
}
.chart-wrap.square {
  height: 280px;
}
.two-charts {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 0.85rem;
  margin: 1.25rem 0 1.75rem;
}
.two-charts .chart-panel {
  margin: 0;
}
.pie-layout {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.75rem 1rem;
  align-items: center;
}
.pie-layout .chart-wrap.square {
  max-width: none;
  margin: 0;
  height: 240px;
}
.mc-legend {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  min-width: 7.5rem;
}
.mc-legend li {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-pixel);
  font-size: 0.78rem;
  line-height: 1.2;
}
.mc-legend__swatch {
  width: 1.15rem;
  height: 1.15rem;
  flex-shrink: 0;
  image-rendering: pixelated;
  border: 1px solid rgba(0,0,0,0.25);
  box-shadow: 1px 1px 0 rgba(0,0,0,0.12);
}
.mc-legend__name {
  color: var(--ink);
}
.mc-legend__pct {
  margin-left: auto;
  font-weight: 700;
}
.mc-legend__pct--day {
  color: var(--day-deep);
}
.mc-legend__pct--sunset {
  color: var(--sunset-deep);
}
.mc-legend__pct--night {
  color: var(--night);
}
.mc-legend__pct--sunrise {
  color: var(--sunrise-deep);
}
.mc-legend-total {
  margin-top: 0.35rem;
  padding-top: 0.45rem;
  border-top: 2px solid var(--line);
  font-family: var(--font-pixel);
  font-size: 0.75rem;
  color: var(--muted);
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  background: var(--card);
  border: 3px solid var(--wood);
  margin: 1rem 0 1.5rem;
}
th, td {
  text-align: left;
  padding: 0.6rem 0.65rem;
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
}
th {
  font-family: var(--font-pixel);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #f5ead0;
  background: linear-gradient(180deg, #6b4a36 0%, var(--wood) 100%);
  border-bottom: 2px solid var(--wood-deep);
}
tr:last-child td {
  border-bottom: 0;
}
tbody tr:nth-child(even) {
  background: rgba(217, 201, 168, 0.22);
}
.phase-cell {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-pixel);
  font-weight: 600;
  font-size: 0.9rem;
}
.phase-block {
  width: 1.35rem;
  height: 1.35rem;
  flex-shrink: 0;
  image-rendering: pixelated;
  border: 1px solid rgba(0,0,0,0.2);
  box-shadow: 1px 1px 0 rgba(0,0,0,0.15);
}
.phase-block--day {
  background: linear-gradient(#5d9c31 0 38%, #8b5a2b 38% 100%);
  box-shadow: inset 0 -2px 0 #6b4423, inset 2px 0 0 rgba(255,255,255,0.15);
}
.phase-block--sunset {
  background: repeating-linear-gradient(90deg, #e07020 0 4px, #c45c12 4px 8px);
}
.phase-block--night {
  background: radial-gradient(circle at 30% 35%, #e8e0ff 0 1.5px, transparent 2px), radial-gradient(circle at 70% 70%, rgba(255,255,255,0.5) 0 1px, transparent 1.5px), linear-gradient(135deg, #2a3568, #1a2248);
}
.phase-block--sunrise {
  background: repeating-linear-gradient(90deg, #c43c28 0 4px, #a83220 4px 8px);
}
.phase-name--day {
  color: var(--day-deep);
}
.phase-name--sunset {
  color: var(--sunset-deep);
}
.phase-name--night {
  color: var(--night);
}
.phase-name--sunrise {
  color: var(--sunrise-deep);
}
.share--day {
  color: var(--day-deep);
  font-weight: 700;
  font-family: var(--font-pixel);
}
.share--sunset {
  color: var(--sunset-deep);
  font-weight: 700;
  font-family: var(--font-pixel);
}
.share--night {
  color: var(--night);
  font-weight: 700;
  font-family: var(--font-pixel);
}
.share--sunrise {
  color: var(--sunrise-deep);
  font-weight: 700;
  font-family: var(--font-pixel);
}
.gif-frame {
  background: var(--card);
  border: 3px solid var(--wood);
  margin: 1.25rem 0;
  overflow: hidden;
}
.gif-frame img {
  display: block;
  width: 100%;
  height: auto;
  image-rendering: auto;
}
.gif-frame figcaption {
  padding: 0.65rem 1rem;
  font-size: 0.85rem;
  color: var(--muted);
  border-top: 2px solid var(--line);
}
ol.method, ul {
  padding-left: 1.2rem;
}
ol.method li, ul li {
  margin: 0.35rem 0;
}
.command {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.88rem;
  background: #ebe1c8;
  border: 2px solid var(--line);
  padding: 0.85rem 1rem;
  margin: 0.75rem 0 1rem;
  overflow-x: auto;
}
@media (max-width: 700px) {
  .two-charts {
    grid-template-columns: 1fr;
  }
  .pie-layout {
    grid-template-columns: 1fr;
  }
  .mc-legend {
    flex-direction: row;
    flex-wrap: wrap;
    min-width: 0;
  }
  .mc-legend li {
    min-width: 42%;
  }
  .mc-legend__pct {
    margin-left: 0.35rem;
  }
  .phase-strip {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 640px) {
  .chart-wrap {
    height: 260px;
  }
  table {
    font-size: 0.8rem;
  }
  th, td {
    padding: 0.45rem 0.35rem;
  }
}

/* Day–night calculator (daylight-cycle paper only) */
.day-calc {
  margin: 1.5rem 0 2rem;
}
.day-calc__mode {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0.85rem 0 1rem;
}
.day-calc__mode-btn {
  font-family: var(--font-pixel);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.45rem 0.75rem;
  border: 2px solid var(--wood);
  background: var(--paper);
  color: var(--ink);
  cursor: pointer;
  box-shadow: 2px 2px 0 rgba(92, 64, 48, 0.12);
}
.day-calc__mode-btn[aria-selected="true"] {
  background: var(--day);
  border-color: var(--day-deep);
  color: #fff;
  text-shadow: 1px 1px 0 rgba(0, 0, 0, 0.2);
}
.day-calc__mode-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.day-calc__panel[hidden] {
  display: none;
}
.day-calc__inputs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.65rem;
  margin-bottom: 0.75rem;
}
.day-calc__field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-family: var(--font-pixel);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--muted);
}
.day-calc__field input {
  font-family: var(--font-mono, "JetBrains Mono", monospace);
  font-size: 1rem;
  font-weight: 600;
  padding: 0.5rem 0.55rem;
  border: 2px solid var(--wood);
  background: #faf8f3;
  color: var(--ink);
  width: 100%;
  min-width: 0;
}
.day-calc__field input:focus {
  outline: 2px solid var(--day);
  outline-offset: 1px;
}
.day-calc__single {
  max-width: 16rem;
  margin-bottom: 0.75rem;
}
.day-calc__presets {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0 0 1rem;
}
.day-calc__preset {
  font-family: var(--font-pixel);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 0.35rem 0.55rem;
  border: 1px solid var(--line);
  background: rgba(217, 201, 168, 0.35);
  color: var(--ink);
  cursor: pointer;
}
.day-calc__preset:hover {
  background: rgba(61, 145, 64, 0.15);
  border-color: var(--day);
}
.day-calc__results {
  border-top: 2px solid var(--line);
  padding-top: 1rem;
  margin-top: 0.25rem;
}
.day-calc__headline {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 0.65rem;
  margin: 0 0 0.85rem;
}
.day-calc__big {
  margin: 0;
  font-family: var(--font-pixel);
  font-size: clamp(2rem, 6vw, 2.75rem);
  font-weight: 800;
  line-height: 1;
  color: var(--day-deep);
}
.day-calc__headline-label {
  margin: 0;
  font-size: 0.95rem;
  color: var(--muted);
  max-width: 22rem;
}
.day-calc__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(9.5rem, 1fr));
  gap: 0.55rem;
  margin: 0 0 1rem;
}
.day-calc__stat {
  background: rgba(217, 201, 168, 0.28);
  border: 2px solid var(--line);
  padding: 0.55rem 0.65rem;
}
.day-calc__stat b {
  display: block;
  font-family: var(--font-pixel);
  font-size: 1rem;
  color: var(--ink);
  margin-bottom: 0.15rem;
}
.day-calc__stat span {
  display: block;
  font-size: 0.78rem;
  color: var(--muted);
  line-height: 1.3;
}
.day-calc__stat--day b {
  color: var(--day-deep);
}
.day-calc__stat--night b {
  color: var(--night);
}
.day-calc__phase-bar {
  display: flex;
  gap: 2px;
  height: 1.35rem;
  border: 2px solid var(--wood-deep);
  background: var(--wood-deep);
  margin: 0 0 0.45rem;
  overflow: hidden;
}
.day-calc__phase-seg {
  min-width: 0;
  flex: 0 0 auto;
}
.day-calc__phase-seg--day {
  background: var(--day);
}
.day-calc__phase-seg--sunset {
  background: var(--sunset);
}
.day-calc__phase-seg--night {
  background: var(--night);
}
.day-calc__phase-seg--sunrise {
  background: var(--sunrise);
}
.day-calc__phase-note {
  margin: 0 0 0.75rem;
  font-size: 0.82rem;
  color: var(--muted);
}
.day-calc__formula {
  margin: 0;
  font-size: 0.82rem;
  color: var(--muted);
  font-family: var(--font-mono, "JetBrains Mono", monospace);
}
.day-calc__simple-note {
  margin: 0.45rem 0 0;
  font-size: 0.82rem;
  color: var(--muted);
}
.day-calc__results--simple {
  border-top: 2px solid var(--line);
  padding-top: 1rem;
  margin-top: 0.75rem;
}
.day-calc__advanced-toggle {
  display: block;
  width: 100%;
  margin: 1rem 0 0;
  padding: 0.55rem 0.85rem;
  font-family: var(--font-pixel);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-align: center;
  border: 2px dashed var(--wood);
  background: rgba(217, 201, 168, 0.25);
  color: var(--ink);
  cursor: pointer;
}
.day-calc__advanced-toggle:hover {
  background: rgba(61, 145, 64, 0.12);
  border-color: var(--day);
}
.day-calc__advanced-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.day-calc__advanced {
  margin-top: 0.85rem;
  padding-top: 0.85rem;
  border-top: 2px solid var(--line);
}
.day-calc__advanced-title {
  margin: 0 0 0.75rem;
  font-family: var(--font-pixel);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.day-calc__advanced-label {
  margin: 0.85rem 0 0.45rem;
  font-family: var(--font-pixel);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted);
}
.day-calc__options {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-bottom: 0.25rem;
}
.day-calc__check {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.88rem;
  line-height: 1.4;
  cursor: pointer;
}
.day-calc__check input {
  margin-top: 0.2rem;
  flex-shrink: 0;
}
.day-calc__tick-readout {
  margin: 0 0 0.85rem;
  padding: 0.55rem 0.65rem;
  font-size: 0.82rem;
  font-family: var(--font-mono, "JetBrains Mono", monospace);
  background: rgba(217, 201, 168, 0.35);
  border: 1px solid var(--line);
  color: var(--ink);
}
.day-calc__results--detail {
  padding-top: 0.5rem;
}
.day-calc__world-help {
  margin-top: 1.25rem;
  border: 2px solid var(--line);
  background: rgba(250, 248, 243, 0.85);
}
.day-calc__world-help summary {
  padding: 0.65rem 0.85rem;
  font-family: var(--font-pixel);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  cursor: pointer;
  list-style: none;
}
.day-calc__world-help summary::-webkit-details-marker {
  display: none;
}
.day-calc__world-body {
  padding: 0 0.85rem 0.85rem;
  font-size: 0.9rem;
}
.day-calc__world-body h4 {
  margin: 1rem 0 0.35rem;
  font-family: var(--font-pixel);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.day-calc__world-body h4:first-child {
  margin-top: 0;
}
.day-calc__world-body p,
.day-calc__world-body ul {
  margin: 0.35rem 0;
}
.day-calc__world-body ul {
  padding-left: 1.2rem;
}
.day-calc__world-body .command {
  margin: 0.5rem 0;
  font-size: 0.82rem;
}
@media (max-width: 520px) {
  .day-calc__inputs {
    grid-template-columns: 1fr;
  }
}