/* Researcher Population Pyramids — global styles */

:root {
  --color-bg: #ffffff;
  --color-text: #1a1a1a;
  --color-muted: #6b6b6b;
  --color-border: #d9d9d9;
  --color-accent: #2c5282;
  --color-female: #2f7a3a;    /* darkgreen, paper-faithful */
  --color-male: #ed8936;      /* orange, paper-faithful */
  --color-projection-bg: #f0f0f5;
  --max-width: 1100px;
  --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
                "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font-stack);
  color: var(--color-text);
  background: var(--color-bg);
  font-size: 16px;
  line-height: 1.5;
}

a { color: var(--color-accent); }
a:hover { text-decoration: underline; }

/* ----- Layout ----- */

.site-header {
  border-bottom: 1px solid var(--color-border);
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.site-header .brand {
  font-size: 18px;
  font-weight: 600;
  text-decoration: none;
  color: var(--color-text);
}

.site-header nav { display: flex; gap: 18px; flex-wrap: wrap; }
.site-header nav a {
  color: var(--color-muted);
  text-decoration: none;
  font-size: 14px;
}
.site-header nav a:hover { color: var(--color-text); }
.site-header nav a.active { color: var(--color-text); font-weight: 600; }

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 24px;
}

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 24px;
  text-align: center;
  color: var(--color-muted);
  font-size: 14px;
}

.site-footer a { color: var(--color-muted); }

/* ----- Controls row (country + domain pickers) ----- */

.controls {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: flex-end;
  margin-bottom: 8px;
}

.control {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 220px;
}

.control.compact { min-width: 110px; }
.control.compact select { min-width: 110px; }

/* Number inputs (Trends year range, etc.) — match select styling. */
.control input[type="number"] {
  font-family: var(--font-stack);
  font-size: 15px;
  padding: 0 12px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: white;
  height: var(--control-height);
  box-sizing: border-box;
  width: 100%;
}

.control label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-muted);
}

/* Unified height for native <select> and Choices.js-wrapped <select>.
   Choices.js replaces the native select with a .choices > .choices__inner
   container, so we have to size both explicitly. */
:root { --control-height: 42px; }

.control select {
  font-family: var(--font-stack);
  font-size: 15px;
  padding: 0 12px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: white;
  height: var(--control-height);
  box-sizing: border-box;
}

.choices { margin-bottom: 0; min-width: 280px; }
.choices__inner {
  min-height: var(--control-height);
  height: var(--control-height);
  padding: 0 10px;
  border-radius: 4px;
  border: 1px solid var(--color-border);
  background: white;
  font-size: 15px;
  box-sizing: border-box;
}
.choices__list--single {
  padding: 0;
  margin: 0;
  line-height: var(--control-height);
}
.choices__list--single .choices__item {
  padding: 0 24px 0 0;
  margin: 0;
  line-height: var(--control-height);
  display: inline-block;
  vertical-align: top;
  transform: translateY(-2px);
}
.choices[data-type*=select-one]::after { right: 14px; }

/* ----- Pyramid plot area ----- */

#pyramid {
  width: 100%;
  height: 560px;
  margin: 12px 0 24px 0;
}

/* ----- Trends plot area ----- */

#trends-plot {
  width: 100%;
  height: 540px;
  margin: 12px 0 24px 0;
}

/* ----- Comparison plot area ----- */

#comparison-plot {
  width: 100%;
  height: 560px;
  margin: 12px 0 24px 0;
}

/* Multi-select Choices.js needs to allow growth above --control-height */
.choices[data-type*=select-multiple] .choices__inner {
  height: auto;
  min-height: var(--control-height);
  padding: 6px 8px 2px 8px;
}
.choices[data-type*=select-multiple] .choices__list--multiple { margin: 0; }
.choices[data-type*=select-multiple] .choices__list--multiple .choices__item {
  font-size: 13px;
  padding: 3px 8px;
  margin: 2px 4px 2px 0;
  background: var(--color-accent);
  border-color: var(--color-accent);
  border-radius: 4px;
}

.pyramid-meta {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 12px;
  font-size: 14px;
  color: var(--color-muted);
}
.pyramid-meta strong { color: var(--color-text); }

/* ----- Year slider + animation controls ----- */

.year-controls {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding: 12px 0;
  border-top: 1px solid var(--color-border);
}

.year-slider-wrap {
  flex: 1 1 380px;
  display: flex;
  align-items: center;
  gap: 12px;
}

#year-slider {
  flex: 1;
  height: 6px;
  -webkit-appearance: none;
  appearance: none;
  background: #e5e5e5;
  border-radius: 3px;
  outline: none;
}

#year-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-accent);
  cursor: pointer;
}

#year-slider::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-accent);
  cursor: pointer;
  border: 0;
}

.year-label {
  font-size: 20px;
  font-weight: 600;
  /* Wide enough to always fit "YYYY [PROJECTION]" so the slider next to it
     does not change width as we cross the historical/projection boundary. */
  min-width: 180px;
  text-align: center;
}

.year-label.is-projection {
  color: var(--color-accent);
}

.year-label .projection-tag {
  display: inline-block;
  margin-left: 6px;
  padding: 1px 6px;
  font-size: 11px;
  font-weight: 600;
  color: white;
  background: var(--color-accent);
  border-radius: 3px;
  vertical-align: middle;
}

.year-buttons { display: flex; gap: 6px; align-items: center; }

.year-buttons button {
  font-family: var(--font-stack);
  font-size: 14px;
  padding: 6px 10px;
  background: white;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  cursor: pointer;
  min-width: 38px;
}

.year-buttons button:hover { background: #f5f5f5; }
.year-buttons button.is-active { background: var(--color-accent); color: white; border-color: var(--color-accent); }
.year-buttons .speed-group { display: flex; align-items: center; gap: 6px; padding-left: 12px; border-left: 1px solid var(--color-border); }
.year-buttons .speed-group label { font-size: 12px; color: var(--color-muted); }

/* ----- Section blocks ----- */

.section { margin: 32px 0; }
.section h1 { font-size: 28px; margin: 0 0 16px 0; }
.section h2 { font-size: 22px; margin: 32px 0 10px 0; }
.section h3 { font-size: 17px; margin: 20px 0 8px 0; }
.section p { color: var(--color-text); margin: 8px 0 12px 0; }
.section ul { margin: 8px 0 16px 0; padding-left: 24px; }
.section li { margin: 4px 0; }

/* Citation card with copy button */
.citation-block {
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 16px 20px;
  background: #fafafa;
  margin: 12px 0 20px 0;
}
.citation-block .citation-text {
  margin: 0 0 12px 0;
  line-height: 1.55;
}
.bibtex {
  position: relative;
  background: #1e1e1e;
  color: #e6e6e6;
  font-family: "SF Mono", Menlo, Consolas, "Courier New", monospace;
  font-size: 13px;
  line-height: 1.55;
  padding: 14px 16px;
  border-radius: 6px;
  overflow-x: auto;
  margin: 8px 0 0 0;
  white-space: pre;
}
.bibtex .copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  font-family: var(--font-stack);
  font-size: 12px;
  padding: 4px 10px;
  border: 1px solid #555;
  border-radius: 4px;
  background: #2d2d2d;
  color: #e6e6e6;
  cursor: pointer;
}
.bibtex .copy-btn:hover { background: #3a3a3a; }
.bibtex .copy-btn.copied { background: #2f7a3a; border-color: #2f7a3a; }

/* ----- Mobile portrait warning ----- */

.rotate-notice {
  display: none;
  padding: 24px;
  text-align: center;
  color: var(--color-muted);
}

@media (max-width: 640px) and (orientation: portrait) {
  main, .site-header nav { display: none; }
  .rotate-notice { display: block; }
}

/* ----- Utility ----- */

.muted { color: var(--color-muted); }
.text-small { font-size: 13px; }
.hidden { display: none !important; }