/**
 * @file
 * Timeline slider styles for the journal day-of-year filter.
 *
 * Copy to: timeline/css/timeline-slider.css
 *
 * All visual values live in the :root custom properties below.
 * Adjust them to match your theme's colour palette.
 */

/* ── Design tokens ───────────────────────────────────────────── */
:root {
  --timeline-track-height: 32px;
  --timeline-track-bg: #2a2d35;
  --timeline-track-fill: linear-gradient(
    0deg,
    var(--bw-darkgrey) 0,
    var(--bw-darkgrey) 1px,
    #fff 4px,
    #fff 28px,
    var(--bw-darkgrey) 31px,
    var(--bw-darkgrey) 32px
  );
  --timeline-track-radius: 0;

  --timeline-thumb-size: 36px;
  --timeline-thumb-bg: transparent;
  --timeline-thumb-border: 3px solid var(--bw-greyish);
  --timeline-thumb-shadow: 0 0 0 4px rgba(99, 102, 241, 0.2);
  --timeline-thumb-shadow-active: 0 0 0 8px rgba(221, 221, 221, 0.4);

  --timeline-tooltip-bg: #1e1e2e;
  --timeline-tooltip-color: #f0f0f5;
  --timeline-tooltip-radius: 8px;
  --timeline-tooltip-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  --timeline-tooltip-font-size: 0.9rem;

  --timeline-month-color: var(--bw-timeline-months);
  --timeline-tick-color: var(--bw-timeline-months);

  --timeline-max-width: 960px;
  --timeline-padding: 4rem 0;
}

/* ── Wrapper ─────────────────────────────────────────────────── */
.timeline-slider-wrapper {
  position: fixed;
  z-index: 10;
  top: calc((100vh - var(--header-height)) / 2);
  width: 60%;
  max-width: var(--timeline-max-width);
  margin: 0;
  padding: var(--timeline-padding);
  user-select: none;
  -webkit-user-select: none;
  background-image: var(--timeline-track-fill);
  background-size: 100% 32px;
  background-repeat: no-repeat;
  background-position-y: center;
  opacity: 0.4;
}

.timeline-slider-wrapper:hover {
  opacity: 1;
}

.timeline-slider-container {
  position: relative;
}

/* ── Floating date tooltip ───────────────────────────────────── */
.timeline-date-tooltip {
  position: absolute;
  top: -2.4rem;
  transform: translateX(-50%);
  background: var(--timeline-tooltip-bg);
  color: var(--timeline-tooltip-color);
  padding: 0.3rem 0.75rem;
  border-radius: var(--timeline-tooltip-radius);
  font-size: var(--timeline-tooltip-font-size);
  font-weight: 600;
  letter-spacing: 0.02em;
  white-space: nowrap;
  pointer-events: none;
  box-shadow: var(--timeline-tooltip-shadow);
  transition: opacity 0.15s ease;
  z-index: 10;
}

/* Small arrow below the tooltip */
.timeline-date-tooltip::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 50%;
  width: 10px;
  height: 10px;
  background: var(--timeline-tooltip-bg);
  border-radius: 2px;
  transform: translateX(-50%) rotate(45deg);
}

/* ── Track wrapper ───────────────────────────────────────────── */
.timeline-slider-track-wrapper {
  position: relative;
  padding: 0.75rem 0;
}

/* ── Range input — reset ─────────────────────────────────────── */
.timeline-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: var(--timeline-track-height);
  background: transparent;
  cursor: pointer;
  margin: 0;
  padding: 0;
  outline: none;
  position: relative;
  z-index: 3;
}

.timeline-slider:focus {
  outline: none;
}

.timeline-slider:focus-visible {
  outline: 2px solid #6366f1;
  outline-offset: 8px;
  border-radius: 4px;
}

/* ── Track — WebKit (Chrome, Edge, Safari) ───────────────────── */
.timeline-slider::-webkit-slider-runnable-track {
  height: var(--timeline-track-height);
  /*background: var(--timeline-track-bg);
  background-image: var(--timeline-track-fill);*/
  border-radius: var(--timeline-track-radius);
  border: none;
}

/* ── Track — Firefox ─────────────────────────────────────────── */
.timeline-slider::-moz-range-track {
  height: var(--timeline-track-height);
  background: var(--timeline-track-bg);
  background-image: var(--timeline-track-fill);
  border-radius: var(--timeline-track-radius);
  border: none;
}

/* ── Thumb — WebKit ──────────────────────────────────────────── */
.timeline-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: calc(var(--timeline-thumb-size) / 2);
  height: var(--timeline-thumb-size);
  background: var(--timeline-thumb-bg);
  background-image: url("/themes/custom/timeline/images/crosshair.png");
  background-repeat: no-repeat;
  background-position: center;
  border: var(--timeline-thumb-border);
  /*border-radius: 50%;*/
  margin-top: calc(
    ((var(--timeline-track-height) - var(--timeline-thumb-size)) / 2) + 2px
  );
  box-shadow: var(--timeline-thumb-shadow);
  transition:
    box-shadow 0.2s ease,
    transform 0.15s ease;
  cursor: grab;
}

.timeline-slider:hover::-webkit-slider-thumb {
  box-shadow: var(--timeline-thumb-shadow-active);
  transform: scale(1.1);
}

.timeline-slider:active::-webkit-slider-thumb {
  cursor: grabbing;
  transform: scale(0.95);
  box-shadow: var(--timeline-thumb-shadow-active);
}

/* ── Thumb — Firefox ─────────────────────────────────────────── */
.timeline-slider::-moz-range-thumb {
  width: var(--timeline-thumb-size);
  height: var(--timeline-thumb-size);
  background: var(--timeline-thumb-bg);
  border: var(--timeline-thumb-border);
  border-radius: 50%;
  box-shadow: var(--timeline-thumb-shadow);
  transition:
    box-shadow 0.2s ease,
    transform 0.15s ease;
  cursor: grab;
}

.timeline-slider:hover::-moz-range-thumb {
  box-shadow: var(--timeline-thumb-shadow-active);
  transform: scale(1.1);
}

.timeline-slider:active::-moz-range-thumb {
  cursor: grabbing;
  transform: scale(0.95);
  box-shadow: var(--timeline-thumb-shadow-active);
}

/* ── Month labels & tick marks ───────────────────────────────── */
.timeline-months {
  display: flex;
  justify-content: space-between;
  position: absolute;
  z-index: 2;
  width: 100%;
  height: var(--timeline-track-height);
  top: 0.9rem;
}

.timeline-months span {
  position: relative;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--timeline-month-color);
  text-align: center;
  flex: 1;
  transition: color 0.2s ease;
  letter-spacing: 0.03em;
  display: grid;
  align-items: center;
}

/* Tick marks above month labels */
.timeline-months span::before {
  content: "";
  position: absolute;
  transform: translateX(-2.5px);
  width: 5px;
  height: 1px;
  background: var(--timeline-tick-color);
}

.timeline-months span::after {
  content: "";
  position: absolute;
  width: 1px;
  height: 20px;
  background: var(--timeline-tick-color);
}

.timeline-months span:first-of-type::before,
.timeline-months span:first-of-type::after {
  display: none;
}

/* ── AJAX loading state ──────────────────────────────────────── */
.timeline-loading .attachment,
.timeline-loading .view-content {
  opacity: 0.4;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

/* Keep the slider itself fully visible during loading */
.timeline-loading .timeline-slider-wrapper {
  opacity: 1;
  pointer-events: auto;
}

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 600px) {
  .timeline-slider-wrapper {
    padding: 1.5rem 1rem 0.75rem;
  }

  .timeline-months span {
    font-size: 0.6rem;
  }

  .timeline-date-tooltip {
    font-size: 0.8rem;
    padding: 0.25rem 0.5rem;
  }

  :root {
    --timeline-thumb-size: 26px;
    --timeline-track-height: 8px;
  }
}