/* ==========================================================================
   Blue Hour Calculator
   Page layer only. Location bar, tables, scenario cards, FAQ, and related
   chips come from styles.css and css/components/.
   ========================================================================== */

.blue-hour-page {
  --bh-accent: #2563eb;
  --bh-accent-subtle: rgba(59, 130, 246, 0.08);

  /* Sky color at each phase of the day, used by [data-sky] elements */
  --sky-night: #1e1b4b;
  --sky-nautical: #4338ca;
  --sky-blue: #3b82f6;
  --sky-glow: #f472b6;
  --sky-horizon: #ea580c;
  --sky-golden: #f59e0b;
  --sky-day: #fde68a;
}

.blue-hour-page [data-sky="night"]    { --sky: var(--sky-night); }
.blue-hour-page [data-sky="nautical"] { --sky: var(--sky-nautical); }
.blue-hour-page [data-sky="blue"]     { --sky: var(--sky-blue); }
.blue-hour-page [data-sky="glow"]     { --sky: var(--sky-glow); }
.blue-hour-page [data-sky="horizon"]  { --sky: var(--sky-horizon); }
.blue-hour-page [data-sky="golden"]   { --sky: var(--sky-golden); }
.blue-hour-page [data-sky="day"]      { --sky: var(--sky-day); }

.blue-hour-page .location-icon {
  color: var(--bh-accent);
}

#today {
  scroll-margin-top: 140px;
}

/* --------------------------------------------------------------------------
   Section header with controls
   -------------------------------------------------------------------------- */
.bh-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-4) var(--space-6);
}

.bh-head .section-subtitle {
  max-width: 40rem;
}

.bh-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
}

.bh-control,
.bh-segmented {
  height: 40px;
  font-family: inherit;
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-900);
  background: var(--color-white);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.bh-step,
.bh-today,
.bh-select {
  cursor: pointer;
}

.bh-step {
  display: grid;
  place-items: center;
  width: 40px;
  padding: 0;
}

.bh-step svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.bh-date {
  padding: 0 var(--space-3);
  font-family: var(--font-mono);
}

.bh-today {
  padding: 0 var(--space-4);
}

.bh-select {
  padding: 0 var(--space-8) 0 var(--space-3);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23666' d='M2 4l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
}

.bh-control:hover:not(:disabled) {
  border-color: var(--color-gray-500);
}

.bh-today:disabled {
  color: var(--color-gray-400);
  cursor: default;
}

.bh-control:focus-visible {
  outline: 2px solid var(--color-black);
  outline-offset: 2px;
}

/* Morning / Evening switch: native radios, styled as one control */
.bh-segmented {
  display: inline-flex;
  padding: 3px;
  min-inline-size: auto;
}

.bh-segmented label {
  position: relative;
  display: flex;
}

.bh-segmented input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.bh-segmented span {
  display: grid;
  place-items: center;
  padding: 0 var(--space-4);
  border-radius: calc(var(--radius-md) - 3px);
  color: var(--color-gray-600);
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.bh-segmented span:hover {
  color: var(--color-black);
}

.bh-segmented input:checked + span {
  color: var(--color-white);
  background: var(--color-black);
}

.bh-segmented input:focus-visible + span {
  outline: 2px solid var(--color-black);
  outline-offset: 2px;
}

@media (max-width: 768px) {
  .bh-controls {
    width: 100%;
  }

  .bh-date,
  .bh-select {
    flex: 1;
    min-width: 0;
  }
}

/* --------------------------------------------------------------------------
   Today: status line, next window, and 24-hour timeline
   -------------------------------------------------------------------------- */
.bh-status {
  margin-bottom: var(--space-6);
  padding: var(--space-4) var(--space-5);
  font-weight: var(--font-weight-medium);
  background: var(--bh-accent-subtle);
  border-left: 3px solid var(--bh-accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.bh-overview {
  padding: var(--space-6);
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
}

.bh-next {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-4) var(--space-6);
}

.bh-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-gray-500);
}

.bh-next-time {
  margin-top: var(--space-2);
  font-size: var(--text-5xl);
  font-weight: var(--font-weight-semibold);
  font-variant-numeric: tabular-nums;
  letter-spacing: var(--tracking-tight);
  line-height: var(--leading-tight);
}

.bh-next-meta,
.bh-card-meta {
  margin-top: var(--space-1);
  font-size: var(--text-sm);
  color: var(--color-gray-500);
}

.bh-countdown {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  font-variant-numeric: tabular-nums;
  color: var(--bh-accent);
  background: var(--bh-accent-subtle);
  border-radius: var(--radius-full);
}

@media (max-width: 768px) {
  .bh-overview {
    padding: var(--space-5);
  }

  .bh-next-time {
    font-size: var(--text-4xl);
  }
}

.bh-timeline-figure {
  margin-top: var(--space-8);
}

.bh-timeline {
  position: relative;
}

/* Segments are sized in minutes with flex-grow; the strips reuse them. */
.bh-timeline-track,
.bh-strip {
  display: flex;
  overflow: hidden;
  border-radius: var(--radius-md);
}

.bh-timeline-track {
  height: 24px;
}

.bh-segment {
  flex: 1 1 0;
  min-width: 0;
  background: var(--sky);
}

.bh-now {
  position: absolute;
  top: -6px;
  bottom: -6px;
  width: 2px;
  margin-left: -1px;
  background: var(--color-black);
  border-radius: 1px;
  box-shadow: 0 0 0 2px var(--color-white);
}

.bh-now[hidden],
.bh-strip[hidden] {
  display: none;
}

.bh-timeline-hours {
  display: flex;
  justify-content: space-between;
  margin-top: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-gray-400);
}

.bh-legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-5);
  margin-top: var(--space-4);
  font-size: var(--text-xs);
  color: var(--color-gray-500);
}

.bh-legend-item::before {
  content: '';
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: var(--space-2);
  vertical-align: -1px;
  border-radius: 2px;
  background: var(--sky);
}

/* --------------------------------------------------------------------------
   Morning and evening cards
   -------------------------------------------------------------------------- */
.bh-sessions {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-4);
}

@media (max-width: 900px) {
  .bh-sessions {
    grid-template-columns: 1fr;
  }
}

.bh-card {
  padding: var(--space-6);
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-top: 3px solid var(--sky-blue);
  border-radius: var(--radius-xl);
}

.bh-label .bh-icon {
  width: 24px;
  height: 24px;
  color: var(--bh-accent);
}

.bh-card-time {
  margin-top: var(--space-2);
  font-size: var(--text-3xl);
  font-weight: var(--font-weight-semibold);
  font-variant-numeric: tabular-nums;
  letter-spacing: var(--tracking-tight);
  line-height: var(--leading-tight);
}

.bh-strip {
  height: 10px;
  margin-top: var(--space-5);
  border-radius: var(--radius-full);
}

/* Label/value rows */
.bh-facts {
  margin-top: var(--space-5);
}

.bh-facts > div {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-2) 0;
  font-size: var(--text-sm);
  border-top: 1px solid var(--color-gray-100);
}

.bh-facts dt {
  color: var(--color-gray-500);
}

.bh-facts dd {
  font-weight: var(--font-weight-medium);
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.bh-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
}

/* --------------------------------------------------------------------------
   Tables
   -------------------------------------------------------------------------- */
.bh-summary {
  margin-bottom: var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-gray-600);
}

.bh-table tbody th {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  text-transform: none;
  letter-spacing: normal;
  color: var(--color-black);
  background: none;
  white-space: nowrap;
}

.bh-table td {
  white-space: nowrap;
}

.bh-table--exposure td:last-child {
  white-space: normal;
  min-width: 18rem;
  color: var(--color-gray-600);
}

.bh-table--exposure tr[data-sky="blue"] {
  background: var(--bh-accent-subtle);
}

.bh-table--exposure tbody tr[data-sky="blue"]:hover {
  background: rgba(59, 130, 246, 0.12);
}

.bh-shutter {
  font-weight: var(--font-weight-semibold);
  color: var(--color-black);
}

/* Each step gets a dot in the sky color of that moment, joined by a line
   down the first column. */
.bh-table--exposure tbody th[scope="row"] {
  position: relative;
  padding-left: 2.75rem;
  background: linear-gradient(color-mix(in srgb, var(--sky) 35%, transparent) 0 0)
              1.25rem 0 / 2px 100% no-repeat;
}

.bh-table--exposure tbody th[scope="row"]::before {
  content: '';
  position: absolute;
  top: 50%;
  left: calc(1.25rem - 5px);
  width: 12px;
  height: 12px;
  margin-top: -6px;
  border-radius: 50%;
  background: var(--sky);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--sky) 20%, transparent);
}

.bh-table tr[aria-current="time"] th::after {
  content: 'Next';
  margin-left: var(--space-2);
  padding: 2px var(--space-2);
  font-size: 10px;
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--color-white);
  background: var(--bh-accent);
  border-radius: var(--radius-sm);
  vertical-align: middle;
}

.bh-table .row-highlight th:first-child {
  box-shadow: inset 3px 0 0 var(--color-black);
}

/* Blue hour length, as a share of the year's longest */
.bh-lengthbar {
  display: inline-block;
  width: 6rem;
  height: 6px;
  margin-left: var(--space-3);
  vertical-align: middle;
  border-radius: var(--radius-full);
  background: linear-gradient(to right,
    var(--sky-blue) var(--length),
    var(--color-gray-200) var(--length));
}

/* --------------------------------------------------------------------------
   Planner: next 7 days
   -------------------------------------------------------------------------- */
.bh-week {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: var(--space-3);
}

@media (max-width: 1100px) {
  .bh-week {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 640px) {
  .bh-week {
    grid-template-columns: repeat(2, 1fr);
  }
}

.bh-day {
  padding: var(--space-4);
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
}

.bh-day[aria-current] {
  border-color: var(--bh-accent);
  box-shadow: inset 0 3px 0 var(--bh-accent);
}

.bh-day-name {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
}

.bh-day-name span {
  font-weight: var(--font-weight-normal);
  color: var(--color-gray-500);
}

.bh-day-times {
  margin-top: var(--space-3);
}

.bh-day-times div + div {
  margin-top: var(--space-2);
}

.bh-day-times dt {
  font-size: var(--text-xs);
  color: var(--color-gray-500);
}

.bh-day-times dd {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-medium);
}

.bh-day-length {
  margin-top: var(--space-3);
  padding-top: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-gray-500);
  border-top: 1px solid var(--color-gray-100);
}

/* --------------------------------------------------------------------------
   Camera settings
   -------------------------------------------------------------------------- */
.blue-hour-page .scenario-title {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* --------------------------------------------------------------------------
   Night vision
   -------------------------------------------------------------------------- */
body.night-vision.blue-hour-page {
  --bh-accent: var(--nv-text);
  --bh-accent-subtle: var(--nv-bg-elevated);
  --sky-night: var(--nv-bg-elevated);
  --sky-nautical: var(--nv-border);
  --sky-blue: var(--nv-accent);
  --sky-glow: var(--nv-text-dim);
  --sky-horizon: var(--nv-text-muted);
  --sky-golden: var(--nv-text-muted);
  --sky-day: var(--nv-text-dim);
}

body.night-vision .bh-control,
body.night-vision .bh-segmented,
body.night-vision .bh-overview,
body.night-vision .bh-card,
body.night-vision .bh-day {
  color: var(--nv-text);
  background-color: var(--nv-bg-card);
  border-color: var(--nv-border);
}

body.night-vision .bh-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23cc3333' d='M2 4l4 4 4-4'/%3E%3C/svg%3E");
}

body.night-vision .bh-card {
  border-top-color: var(--sky-blue);
}

body.night-vision .bh-day[aria-current] {
  border-color: var(--nv-text);
}

body.night-vision .bh-segmented span {
  color: var(--nv-text-muted);
}

body.night-vision .bh-segmented input:checked + span {
  color: var(--nv-bg);
  background: var(--nv-text);
}

body.night-vision .bh-control:focus-visible,
body.night-vision .bh-segmented input:focus-visible + span {
  outline-color: var(--nv-text);
}

body.night-vision .bh-today:disabled,
body.night-vision .bh-label,
body.night-vision .bh-next-meta,
body.night-vision .bh-card-meta,
body.night-vision .bh-timeline-hours,
body.night-vision .bh-legend,
body.night-vision .bh-facts dt,
body.night-vision .bh-day-name span,
body.night-vision .bh-day-times dt,
body.night-vision .bh-day-length {
  color: var(--nv-text-dim);
}

body.night-vision .bh-status,
body.night-vision .bh-next-time,
body.night-vision .bh-card-time,
body.night-vision .bh-facts dd,
body.night-vision .bh-shutter {
  color: var(--nv-text);
}

body.night-vision .bh-table tbody th {
  color: var(--nv-text);
  background-color: transparent;
}

body.night-vision .bh-summary,
body.night-vision .bh-table--exposure td:last-child {
  color: var(--nv-text-muted);
}

body.night-vision .bh-facts > div,
body.night-vision .bh-day-length {
  border-color: var(--nv-border-subtle);
}

body.night-vision .bh-now {
  background: var(--nv-text);
  box-shadow: 0 0 0 2px var(--nv-bg-card);
}

body.night-vision .bh-table--exposure tbody tr[data-sky="blue"]:hover {
  background: var(--nv-bg-card);
}

body.night-vision .bh-table tr[aria-current] th::after {
  color: var(--nv-bg);
}

body.night-vision .bh-table .row-highlight th:first-child {
  box-shadow: inset 3px 0 0 var(--nv-text);
}

body.night-vision .bh-lengthbar {
  background: linear-gradient(to right,
    var(--nv-text-muted) var(--length),
    var(--nv-border) var(--length));
}