/* ============================================================
   Domain display: readouts, coordinates, twilight, timelines.
   These are the pieces that make the site read as an observing
   tool rather than a landing page.
   ============================================================ */

/* --- Readout: a labelled measured value. The core data primitive. --- */
.readout {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}
.readout__label {
  font-family: var(--font-mono);
  font-size: var(--step--2);
  letter-spacing: var(--track-caps);
  text-transform: uppercase;
  color: var(--fog-deep);
}
.readout__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--step-2);
  font-weight: 400;
  line-height: 1.1;
  color: var(--paper);
}
.readout__value sup, .readout__unit {
  font-size: 0.6em;
  color: var(--fog);
  margin-left: 0.15em;
}
.readout__note { font-size: var(--step--2); color: var(--fog); }

.readout--sm .readout__value { font-size: var(--step-1); }

/* A row of readouts separated by hairlines, not boxed into cards. */
.readout-rail {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-sm);
}
@media (min-width: 40rem) {
  .readout-rail { grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); }
}
.readout-rail > * {
  padding: var(--space-md);
  border: 1px solid var(--line);
  border-radius: var(--radius-control);
  background: var(--surface);
}

/* --- Definition list used for technical parameters --- */
.spec-list {
  display: grid;
  grid-template-columns: minmax(7.5rem, auto) minmax(0, 1fr);
  column-gap: var(--space-md);
  font-size: var(--step--1);
}
.spec-list dt {
  color: var(--fog-deep);
  padding-block: 0.42rem;
  border-top: 1px solid var(--line-hair);
}
.spec-list dd {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--paper-dim);
  padding-block: 0.42rem;
  border-top: 1px solid var(--line-hair);
  word-break: break-word;
}
.spec-list dt:first-of-type, .spec-list dd:first-of-type { border-top: none; }
.spec-list dd.is-text { font-family: var(--font-ui); }

/* --- Coordinates --- */
.coords {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem var(--space-md);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--step-0);
  color: var(--azure-bright);
}
.coords span { white-space: nowrap; }
.coords b {
  font-weight: 400;
  color: var(--fog-deep);
  margin-right: 0.3rem;
}
.copy-coords {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: var(--step--2);
  letter-spacing: var(--track-caps);
  text-transform: uppercase;
  color: var(--fog);
  min-height: 32px;
  transition: color var(--dur-fast);
}
.copy-coords:hover { color: var(--azure-bright); }
.copy-coords svg { width: 13px; height: 13px; }
.copy-coords[data-copied="true"] { color: var(--signal-good); }

/* --- Twilight ladder: the evening schedule as a vertical timetable --- */
.twilight-ladder {
  padding: var(--space-xs) var(--space-md);
  border: 1px solid var(--line);
  border-radius: var(--radius-control);
  background: rgba(4, 10, 8, 0.52);
}
.twilight-ladder li {
  display: grid;
  grid-template-columns: 4.6rem minmax(0, 1fr) auto;
  align-items: baseline;
  gap: var(--space-sm);
  padding-block: 0.55rem;
  border-bottom: 1px solid var(--line-hair);
  font-size: var(--step--1);
}
.twilight-ladder time {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--paper);
  font-size: var(--step-0);
}
.twilight-ladder .phase-name { color: var(--fog); }
.twilight-ladder .phase-sun {
  font-family: var(--font-mono);
  font-size: var(--step--2);
  color: var(--fog-deep);
}
.twilight-ladder li[data-key="astro-start"] time,
.twilight-ladder li[data-key="astro-end"] time { color: var(--azure-bright); }

/* --- Observation index --- */
.obs-index {
  display: flex;
  align-items: flex-end;
  gap: var(--space-md);
}
.obs-index__score {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(3rem, 6vw, 4.5rem);
  line-height: 0.85;
  font-weight: 300;
  letter-spacing: -0.03em;
  color: var(--paper);
}
.obs-index__score small {
  font-size: 0.32em;
  color: var(--fog-deep);
  letter-spacing: 0;
}
.obs-index__verdict {
  font-size: var(--step-1);
  padding-bottom: 0.25rem;
}
.obs-index[data-band="good"] .obs-index__verdict { color: var(--signal-good); }
.obs-index[data-band="fair"] .obs-index__verdict { color: var(--signal-fair); }
.obs-index[data-band="poor"] .obs-index__verdict { color: var(--signal-poor); }

/* Factor bars: how the index was reached. Bar length is data, not decoration. */
.index-factors { margin-top: var(--space-md); }
.index-factors li {
  display: grid;
  grid-template-columns: minmax(6.5rem, 8rem) minmax(0, 1fr) 3.2rem;
  align-items: center;
  gap: var(--space-sm);
  padding-block: 0.35rem;
  font-size: var(--step--1);
}
.index-factors .factor-name { color: var(--fog); }
.index-factors .factor-track {
  height: 3px;
  background: var(--ink-700);
  position: relative;
}
.index-factors .factor-fill {
  position: absolute;
  inset: 0 auto 0 0;
  background: var(--azure);
  min-width: 1px;
}
.index-factors .factor-value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--step--2);
  color: var(--paper-dim);
  text-align: right;
}

/* --- Moon disc: illumination drawn from real phase geometry --- */
.moon-disc {
  width: var(--disc-size, 84px);
  height: var(--disc-size, 84px);
  flex: none;
}
.moon-disc .disc-dark { fill: var(--ink-750); }
.moon-disc .disc-lit { fill: var(--paper-dim); }
.moon-disc .disc-edge { fill: none; stroke: var(--line-strong); stroke-width: 1; }

/* --- Event timeline: a dated list, not a card grid --- */
.event-timeline { display: grid; gap: var(--space-sm); }
.event-timeline > li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.35rem var(--space-lg);
  padding: var(--space-md);
  border: 1px solid var(--line);
  border-radius: var(--radius-control);
  background: var(--surface);
  transition: background var(--dur-fast), border-color var(--dur-fast), transform var(--dur-fast);
}
.event-timeline > li:hover {
  background: var(--surface-raised);
  border-color: var(--line-strong);
  transform: translateY(-2px);
}
@media (min-width: 46rem) {
  .event-timeline > li {
    grid-template-columns: 6.5rem minmax(0, 1fr) 8rem;
    align-items: baseline;
  }
}
.event-timeline .event-date {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: var(--track-caps);
  text-transform: uppercase;
  color: var(--azure);
  white-space: nowrap;
}
.event-timeline .event-title {
  font-family: var(--font-display);
  font-size: var(--step-2);
  font-weight: 400;
  line-height: 1.2;
  color: var(--paper);
}
.event-timeline .event-note {
  font-size: var(--step--1);
  color: var(--fog);
  margin-top: 0.3rem;
  max-width: 58ch;
}
.event-timeline .event-time {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--step--1);
  color: var(--paper-dim);
}
@media (min-width: 46rem) {
  .event-timeline .event-time { text-align: right; }
}
.event-timeline .event-kind {
  font-family: var(--font-mono);
  font-size: var(--step--2);
  letter-spacing: var(--track-caps);
  text-transform: uppercase;
  color: var(--fog-deep);
  display: block;
  margin-top: 0.2rem;
}
.event-timeline > li[data-soon="true"] {
  border-color: var(--azure-deep);
  background: linear-gradient(105deg, rgba(27, 122, 90, 0.18), var(--ink-850) 55%);
}

/* --- Data table: NEO approaches, ephemerides --- */
.data-table-wrap {
  overflow-x: auto;
  padding: 0 var(--space-md) var(--space-sm);
  border: 1px solid var(--line);
  border-radius: var(--radius-control);
  background: var(--surface);
}
.data-table {
  min-width: 640px;
  font-size: var(--step--1);
}
.data-table th {
  text-align: left;
  font-family: var(--font-mono);
  font-size: var(--step--2);
  font-weight: 500;
  letter-spacing: var(--track-caps);
  text-transform: uppercase;
  color: var(--fog-deep);
  padding: 0.5rem var(--space-sm) 0.5rem 0;
  border-bottom: 1px solid var(--line-strong);
  white-space: nowrap;
}
.data-table td {
  padding: 0.62rem var(--space-sm) 0.62rem 0;
  border-bottom: 1px solid var(--line-hair);
  color: var(--paper-dim);
  vertical-align: baseline;
}
.data-table td.num-cell {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  text-align: right;
  padding-right: var(--space-md);
  white-space: nowrap;
}
.data-table th.num-cell { text-align: right; padding-right: var(--space-md); }
.data-table tbody tr:hover td { color: var(--paper); background: var(--ink-850); }
.data-table .obj-name { color: var(--paper); }

.hazard-mark {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-family: var(--font-mono);
  font-size: var(--step--2);
  letter-spacing: var(--track-caps);
  color: var(--signal-fair);
  white-space: nowrap;
}
.hazard-mark::before {
  content: "";
  width: 6px; height: 6px;
  border: 1px solid currentColor;
  transform: rotate(45deg);
}

/* --- Astrophoto metadata block --- */
.photo-meta {
  display: grid;
  gap: var(--space-md);
  font-size: var(--step--1);
}
@media (min-width: 34rem) {
  .photo-meta { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
.photo-meta__group { min-width: 0; }
.photo-meta__group h4 {
  font-family: var(--font-mono);
  font-size: var(--step--2);
  font-weight: 500;
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  color: var(--fog-deep);
  margin-bottom: 0.4rem;
  padding-bottom: 0.3rem;
  border-bottom: 1px solid var(--line-hair);
}
.photo-meta__group p {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--paper-dim);
  line-height: 1.5;
}
.photo-meta__group p + p { margin-top: 0.15rem; }

/* --- Figure caption used under editorial photographs --- */
.plate figcaption {
  margin-top: var(--space-sm);
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem var(--space-md);
  align-items: baseline;
  font-size: var(--step--1);
  color: var(--fog);
  border-top: 1px solid var(--line-hair);
  padding-top: var(--space-xs);
}
.plate figcaption .plate-object {
  font-family: var(--font-display);
  font-size: var(--step-1);
  color: var(--paper);
}
.plate figcaption .plate-tech {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--step--2);
  color: var(--fog-deep);
  letter-spacing: 0.02em;
}
.plate img { width: 100%; }

/* Photographs sit flush — no rounded corners, no shadow. */
.plate--flush img { border-radius: 0; }

/* --- Attribution line under third-party imagery --- */
.credit {
  font-family: var(--font-mono);
  font-size: var(--step--2);
  color: var(--fog-deep);
  letter-spacing: 0.02em;
}
.credit a { border-bottom: 1px solid var(--line-strong); }
.credit a:hover { color: var(--azure-bright); }

/* --- Favourite (saved object) toggle --- */
.fav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  min-height: 34px;
  padding-inline: 0.4rem;
  font-size: var(--step--1);
  color: var(--fog);
  transition: color var(--dur-fast);
}
.fav-toggle svg { width: 15px; height: 15px; }
.fav-toggle:hover { color: var(--paper); }
.fav-toggle[aria-pressed="true"] { color: var(--azure-bright); }
.fav-toggle[aria-pressed="true"] svg { fill: currentColor; }