/* ==========================================================================
   Dengue Forecast — static web viewer theme
   Paper palette (Parasites & Vectors revision). System fonts, no web fonts.
   Owns: visual variables, layout, controls bar, small-multiples grid,
   .warn / .note callouts, chip/toggle/slider styling.
   ========================================================================== */

:root {
  /* --- Paper palette (full saturation) --- */
  --c-red:    #7A2929;
  --c-blue:   #22354A;
  --c-gray:   #6D7073;
  --c-green:  #4D5C4B;
  --c-gold:   #AB9E54;

  /* --- Light tints --- */
  --l-red:    #E4D4D4;
  --l-blue:   #D3D7DB;
  --l-gray:   #E2E2E3;
  --l-green:  #DBDEDB;
  --l-gold:   #EEECDD;

  /* --- Observed-cases ink --- */
  --c-obs:    #1A1A1A;

  /* --- Neutrals / surfaces --- */
  --bg:           #FFFFFF;
  --bg-soft:      #FAFAF9;
  --surface:      #FFFFFF;
  --surface-alt:  #F5F5F4;
  --ink:          #1A1A1A;
  --ink-soft:     #4A4D50;
  --ink-mute:     #6D7073;
  --border:       #DEDCD7;
  --border-soft:  #ECEAE5;

  /* --- Callouts --- */
  --warn-bg:      #FBF3E0;
  --warn-border:  #C9A227;
  --warn-ink:     #6B5410;
  --note-bg:      #F1F1F0;
  --note-border:  #C7C7C5;
  --note-ink:     #4A4D50;

  /* --- Geometry --- */
  --maxw:        960px;
  --radius:      8px;
  --radius-sm:   6px;
  --gap:         16px;
  --shadow:      0 1px 2px rgba(26,26,26,.06), 0 2px 8px rgba(26,26,26,.05);

  /* --- Type --- */
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
          Arial, "Apple Color Emoji", "Segoe UI Emoji", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono",
               monospace;
}

/* ==========================================================================
   Base
   ========================================================================== */
* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg-soft);
  color: var(--ink);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

#app {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 24px 20px 56px;
}

a { color: var(--c-blue); }
a:hover { color: var(--c-red); }

/* ==========================================================================
   Header
   ========================================================================== */
#header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 16px;
  border-bottom: 3px solid var(--c-red);
  margin-bottom: 20px;
}

#header .header-text { min-width: 0; }

#title {
  margin: 0;
  font-size: 1.9rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--c-blue);
  line-height: 1.15;
}

#subtitle {
  margin: 4px 0 0;
  font-size: 1rem;
  font-weight: 500;
  color: var(--c-gray);
}

#lead {
  margin: 12px 0 0;
  max-width: 64ch;
  color: var(--ink-soft);
  font-size: .95rem;
}

/* Language toggle */
#langToggle {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 13px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--c-blue);
  font: inherit;
  font-size: .85rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  box-shadow: var(--shadow);
  transition: background .15s, color .15s, border-color .15s;
}
#langToggle:hover { background: var(--l-blue); border-color: var(--c-blue); }
#langToggle:active { transform: translateY(1px); }

/* ==========================================================================
   Controls bar
   ========================================================================== */
#controls {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 14px 18px;
  padding: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 18px;
}

.control {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.control-label {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

/* Make the origin slider control flex to fill the row */
.control--slider { flex: 1 1 280px; }

/* Select */
#stateSelect {
  appearance: none;
  -webkit-appearance: none;
  padding: 8px 32px 8px 11px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface)
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'><path d='M2 4l4 4 4-4' fill='none' stroke='%2322354A' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/></svg>")
    no-repeat right 10px center;
  color: var(--ink);
  font: inherit;
  font-size: .9rem;
  min-width: 200px;
  cursor: pointer;
}
#stateSelect:focus-visible {
  outline: 2px solid var(--c-blue);
  outline-offset: 1px;
  border-color: var(--c-blue);
}

/* ==========================================================================
   Buttons / chips / toggles (shared)
   ========================================================================== */
.btn-group {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 6px;
}

.btn,
.chip {
  appearance: none;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink-soft);
  font: inherit;
  font-size: .85rem;
  font-weight: 600;
  padding: 7px 14px;
  cursor: pointer;
  line-height: 1;
  white-space: nowrap;
  transition: background .14s, color .14s, border-color .14s, box-shadow .14s;
}
.btn:hover,
.chip:hover {
  border-color: var(--c-blue);
  background: var(--l-blue);
  color: var(--c-blue);
}
.btn:active,
.chip:active { transform: translateY(1px); }

/* Active / selected state */
.btn.active,
.chip.active,
.btn[aria-pressed="true"],
.chip[aria-pressed="true"] {
  background: var(--c-blue);
  border-color: var(--c-blue);
  color: #fff;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.12);
}

/* Horizon chips use the red accent when active to echo the median line */
#horizonChips .chip.active,
#horizonChips .chip[aria-pressed="true"] {
  background: var(--c-red);
  border-color: var(--c-red);
}

.btn:focus-visible,
.chip:focus-visible {
  outline: 2px solid var(--c-blue);
  outline-offset: 2px;
}

/* ==========================================================================
   Origin slider
   ========================================================================== */
.slider-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

#originSlider {
  -webkit-appearance: none;
  appearance: none;
  flex: 1 1 auto;
  height: 6px;
  border-radius: 999px;
  background: linear-gradient(to right, var(--l-red), var(--l-blue));
  outline: none;
  cursor: pointer;
  margin: 8px 0;
}
#originSlider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--c-red);
  border: 3px solid #fff;
  box-shadow: 0 1px 3px rgba(26,26,26,.35);
  cursor: pointer;
}
#originSlider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--c-red);
  border: 3px solid #fff;
  box-shadow: 0 1px 3px rgba(26,26,26,.35);
  cursor: pointer;
}
#originSlider:focus-visible::-webkit-slider-thumb { outline: 2px solid var(--c-blue); outline-offset: 2px; }
#originSlider:focus-visible::-moz-range-thumb     { outline: 2px solid var(--c-blue); outline-offset: 2px; }

#originLabel {
  flex: 0 0 auto;
  min-width: 9ch;
  text-align: center;
  font-family: var(--font-mono);
  font-size: .9rem;
  font-weight: 700;
  color: var(--c-red);
  background: var(--l-red);
  border-radius: var(--radius-sm);
  padding: 4px 9px;
}

/* ==========================================================================
   Checkboxes
   ========================================================================== */
.check {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: .85rem;
  font-weight: 500;
  color: var(--ink-soft);
  cursor: pointer;
  user-select: none;
}
.check input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--c-blue);
  cursor: pointer;
}

/* ==========================================================================
   Legend
   ========================================================================== */
#legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  align-items: center;
  padding: 10px 14px;
  margin-bottom: 14px;
  background: var(--surface-alt);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  font-size: .82rem;
  color: var(--ink-soft);
}
.legend-item { display: inline-flex; align-items: center; gap: 7px; }
.legend-swatch {
  display: inline-block;
  width: 16px;
  height: 12px;
  border-radius: 3px;
  flex: 0 0 auto;
}
.legend-swatch--obs   { background: var(--c-obs); opacity: .55; }
.legend-swatch--median{ background: var(--c-red); height: 3px; border-radius: 2px; }
.legend-swatch--band  { background: rgba(122,41,41,.20); border: 1px solid rgba(122,41,41,.4); }
.legend-swatch--cutoff{
  background: repeating-linear-gradient(0deg, var(--c-obs) 0 3px, transparent 3px 6px);
  width: 3px; height: 14px;
}

/* ==========================================================================
   Chart + Grid
   ========================================================================== */
#chart {
  width: 100%;
  min-height: 460px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

#grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 14px;
}

/* Grid cells (chart.js emits .grid-cell / .grid-cell--wide / .grid-cell__title /
   .grid-cell__plot). The first cell (National) spans the full grid width. */
.grid-cell {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  padding: 6px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.grid-cell--wide { grid-column: 1 / -1; }

.grid-cell__title {
  font-size: .8rem;
  font-weight: 700;
  color: var(--c-blue);
  margin: 2px 4px 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* The plot div needs an explicit height or Plotly renders at 0px. */
.grid-cell__plot {
  width: 100%;
  height: 160px;
}
.grid-cell--wide .grid-cell__plot {
  height: 220px;
}

/* Show one region at a time */
.view-single #grid { display: none; }
.view-grid   #chart { display: none; }

/* ==========================================================================
   Callouts: .warn (amber) / .note (gray)
   ========================================================================== */
.callout {
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  font-size: .86rem;
  line-height: 1.5;
  margin: 14px 0 0;
  border: 1px solid transparent;
}
.callout .callout-title {
  font-weight: 700;
  margin-right: 6px;
}

.warn {
  background: var(--warn-bg);
  border-color: var(--warn-border);
  color: var(--warn-ink);
}
.warn .callout-title { color: var(--warn-ink); }

.note {
  background: var(--note-bg);
  border-color: var(--note-border);
  color: var(--note-ink);
}

/* Live forward-forecast callout: a distinct gold-accented banner so it never
   reads like the amber national-band .warn. Bold left rule + "VIGENTE/LIVE"
   pill to flag that this is the genuine out-of-sample projection. */
.live {
  background: var(--l-gold);
  border-color: var(--c-gold);
  border-left: 5px solid var(--c-gold);
  color: var(--c-blue);
  position: relative;
}
.live .callout-title {
  color: var(--c-blue);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.live .callout-title::before {
  content: "● LIVE";
  font-size: .68rem;
  font-weight: 800;
  letter-spacing: .06em;
  color: #fff;
  background: var(--c-gold);
  border-radius: 999px;
  padding: 2px 9px;
  line-height: 1.3;
}
html[lang="es"] .live .callout-title::before { content: "● VIGENTE"; }

/* Hidden caveats by default (JS toggles them per origin / selection) */
#caveat[hidden],
#liveCaveat[hidden] { display: none; }

/* "· pronóstico vigente / live forecast" tag appended to the origin label.
   The origin <output> normally shows the red mono cutoff; in forward mode it
   gets the .is-live class so it switches to the gold accent. */
#originLabel.is-live {
  color: var(--c-blue);
  background: var(--l-gold);
}
.origin-live-tag {
  font-family: var(--font);
  font-weight: 700;
  font-size: .72rem;
  letter-spacing: .02em;
  text-transform: none;
}

/* ==========================================================================
   Footer
   ========================================================================== */
#footer {
  margin-top: 32px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: .8rem;
  color: var(--ink-mute);
  line-height: 1.6;
}
#footer a { font-weight: 600; }

/* ==========================================================================
   Embed mode (?embed=1) — strip chrome for clean iframe
   ========================================================================== */
body.embed #app { padding: 12px; }
body.embed #header { border-bottom-width: 2px; margin-bottom: 12px; }
body.embed #lead,
body.embed #footer { display: none; }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 680px) {
  #app { padding: 18px 14px 44px; }
  #title { font-size: 1.5rem; }
  #header { flex-direction: column; }
  #langToggle { align-self: flex-start; }
  #controls { gap: 12px 14px; }
  .control--slider { flex-basis: 100%; }
  #stateSelect { min-width: 0; width: 100%; }
  #chart { min-height: 380px; }
  #grid { grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}