/* Light channel widget, pill row, drill-down panel, and AI synthesis. */

.dashboard-widget[data-widget-id="light-channels"] .light-channels-section {
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.light-channels-section-dashboard {
  display: grid;
  gap: 12px;
}
.light-channels-section-dashboard .light-section-hint {
  margin-bottom: 0;
}
.light-dashboard-open-btn {
  justify-self: start;
}

/* Channel pill row — qualitative tier indicator */
.light-pills-row { display: flex; flex-wrap: wrap; gap: 8px; }
.light-pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 12px; border-radius: 999px;
  background: color-mix(in srgb, var(--bg-secondary) 78%, transparent);
  border: 1px solid color-mix(in srgb, var(--border) 82%, transparent);
  font-size: 12px; color: var(--text-secondary);
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.light-pill-icon { font-size: 13px; }
.light-pill-label { font-weight: 500; }
/* 7-day sparkline embedded in the pill — replaces the prior dot
   metaphor which implied a fillable container. Bars show daily rhythm
   (today = rightmost), color-coded green when day hit target / accent
   when meaningful / faint stub when negligible. Reinforces the
   daily-beats-banking framing with a real-data visualization. */
.light-pill-sparkline {
  display: inline-block;
  flex: 0 0 auto;
  width: 47px; height: 14px;
  vertical-align: middle;
}
.light-pill-daycount {
  font-size: 11px; font-weight: 600; letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
  color: inherit; opacity: 0.9;
  min-width: 24px; text-align: right;
}
/* Legacy class kept in case anything still references it; renders
   as zero-width so older cached templates don't blow out the layout. */
.light-pill-dots { display: none; }
/* Tier 0 = no meaningful exposure logged for this channel. Visually
   reads as "empty placeholder" (dashed border, transparent fill, faded
   label) instead of "filled container that's been dimmed" — so the user
   doesn't think they have data they don't. */
.light-pill-tier-0 {
  background: color-mix(in srgb, var(--bg-primary) 42%, transparent);
  border-style: dashed;
  border-color: color-mix(in srgb, var(--text-muted) 48%, var(--border));
  color: var(--text-muted);
}
.light-pill-tier-0 .light-pill-dots { opacity: 0.5; }
.light-pill-tier-1 { color: var(--text-secondary); }
.light-pill-tier-2 { color: var(--text-primary); border-color: var(--text-muted); }
.light-pill-tier-3 { color: var(--accent); border-color: var(--accent); }
.light-pill-tier-4 { color: var(--green); border-color: var(--green); }

.light-channels-section {
  margin-top: 0;
  padding: 18px 20px;
  border: 1px solid color-mix(in srgb, var(--border) 82%, transparent);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--bg-card) 94%, transparent);
  box-shadow: var(--shadow);
}

/* Light page channel pills — same vocabulary as the dashboard strip,
   adds a click-to-expand affordance for the drill-down panel below. */
.light-channels-section .light-pills-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(174px, 100%), 1fr));
  gap: 10px;
}
.light-channels-section .light-pill {
  --channel-accent: var(--accent);
  --channel-tint: color-mix(in srgb, var(--channel-accent) 10%, transparent);
  position: relative;
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) auto;
  grid-template-areas:
    "icon label count"
    "icon spark spark";
  align-items: center;
  gap: 7px 10px;
  min-height: 72px;
  padding: 12px 13px 11px 15px;
  border-radius: var(--radius-sm);
  background:
    linear-gradient(135deg, var(--channel-tint), transparent 58%),
    color-mix(in srgb, var(--bg-secondary) 62%, transparent);
  border: 1px solid color-mix(in srgb, var(--channel-accent) 24%, var(--border));
  color: var(--text-primary);
  box-shadow: inset 3px 0 0 color-mix(in srgb, var(--channel-accent) 76%, transparent);
  overflow: hidden;
}
.light-channels-section .light-pill[data-channel="vitamin_d"] { --channel-accent: var(--yellow); }
.light-channels-section .light-pill[data-channel="circadian"] { --channel-accent: var(--accent); }
.light-channels-section .light-pill[data-channel="nir_solar"] { --channel-accent: var(--red); }
.light-channels-section .light-pill[data-channel="no_cv"] { --channel-accent: var(--green); }
.light-channels-section .light-pill[data-channel="pomc"] { --channel-accent: var(--orange); }
.light-channels-section .light-pill[data-channel="violet_eye"] { --channel-accent: var(--purple); }
.light-channels-section .light-pill-icon {
  grid-area: icon;
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 18px;
  background: color-mix(in srgb, var(--channel-accent) 13%, var(--bg-card));
  border: 1px solid color-mix(in srgb, var(--channel-accent) 30%, transparent);
}
.light-channels-section .light-pill-label {
  grid-area: label;
  min-width: 0;
  font-size: 12.5px;
  font-weight: 650;
  line-height: 1.2;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.light-channels-section .light-pill-sparkline {
  grid-area: spark;
  width: 100%;
  max-width: 76px;
  height: 18px;
  justify-self: start;
}
.light-channels-section .light-pill-daycount {
  grid-area: count;
  min-width: 34px;
  padding: 3px 7px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--channel-accent) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--channel-accent) 26%, transparent);
  color: var(--text-primary);
  text-align: center;
}
.light-channels-section .light-pill-tier-0 {
  background: color-mix(in srgb, var(--bg-secondary) 38%, transparent);
  border-style: solid;
  border-color: color-mix(in srgb, var(--border) 88%, transparent);
  box-shadow: inset 3px 0 0 color-mix(in srgb, var(--text-muted) 28%, transparent);
  color: var(--text-muted);
}
.light-channels-section .light-pill-tier-0 .light-pill-icon {
  background: color-mix(in srgb, var(--bg-card) 70%, transparent);
  border-color: color-mix(in srgb, var(--border) 78%, transparent);
  opacity: 0.72;
}
.light-channels-section .light-pill-tier-0 .light-pill-daycount {
  background: transparent;
  border-color: color-mix(in srgb, var(--border) 78%, transparent);
  color: var(--text-muted);
}
.light-channels-section .light-pill-tier-3,
.light-channels-section .light-pill-tier-4 {
  border-color: color-mix(in srgb, var(--channel-accent) 48%, var(--border));
}
.light-pills-interactive .light-pill-interactive,
.light-pill-dashboard {
  cursor: pointer;
  font-family: inherit;
  /* button-element reset */
}
.light-pills-interactive .light-pill-interactive:hover,
.light-pill-dashboard:hover {
  filter: brightness(1.08);
  border-color: var(--accent);
}
.light-channels-section .light-pill-interactive:hover,
.light-channels-section .light-pill-dashboard:hover {
  border-color: color-mix(in srgb, var(--channel-accent) 62%, var(--border));
  box-shadow:
    inset 3px 0 0 color-mix(in srgb, var(--channel-accent) 86%, transparent),
    0 8px 18px color-mix(in srgb, var(--channel-accent) 12%, transparent);
}
.light-pill-dashboard:focus-visible,
.light-pills-interactive .light-pill-interactive:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.light-pills-interactive .light-pill-interactive[aria-expanded="true"] {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}
.light-channels-section .light-pills-interactive .light-pill-interactive[aria-expanded="true"] {
  border-color: color-mix(in srgb, var(--channel-accent) 64%, var(--border));
  box-shadow:
    inset 3px 0 0 color-mix(in srgb, var(--channel-accent) 90%, transparent),
    0 0 0 1px color-mix(in srgb, var(--channel-accent) 42%, transparent);
}
.light-pill-interactive[data-trend="up"]   .light-pill-dots { color: var(--green); }
.light-pill-interactive[data-trend="down"] .light-pill-dots { color: var(--orange); }

/* Drill-down detail panel — appears below the pill row when a pill is
   tapped. One channel expanded at a time. */
.light-channel-detail-slot { margin-top: 12px; }
.light-channel-detail {
  --channel-accent: var(--accent);
  background: color-mix(in srgb, var(--bg-card) 94%, transparent);
  border: 1px solid color-mix(in srgb, var(--channel-accent) 18%, var(--border));
  border-radius: var(--radius);
  padding: 16px 20px;
  display: flex; flex-direction: column; gap: 10px;
  outline: none;
  transition: box-shadow 0.3s, border-color 0.3s;
}
.light-channel-detail[data-channel="vitamin_d"] { --channel-accent: var(--yellow); }
.light-channel-detail[data-channel="circadian"] { --channel-accent: var(--accent); }
.light-channel-detail[data-channel="nir_solar"] { --channel-accent: var(--red); }
.light-channel-detail[data-channel="no_cv"] { --channel-accent: var(--green); }
.light-channel-detail[data-channel="pomc"] { --channel-accent: var(--orange); }
.light-channel-detail[data-channel="violet_eye"] { --channel-accent: var(--purple); }
/* Briefly outline the panel after expansion (deep-link from session
   detail modal or another off-page surface) so the user notices what
   just opened — the panel can be far below the fold. */
.light-channel-detail.light-channel-detail-flash {
  box-shadow: 0 0 0 2px var(--accent), 0 8px 24px color-mix(in srgb, var(--accent) 18%, transparent);
  border-color: var(--accent);
}
.light-channel-detail-head {
  display: flex; align-items: center; gap: 10px;
}
.light-channel-detail-icon { font-size: 18px; }
.light-channel-detail-title {
  font-size: 15px; font-weight: 600; color: var(--text-primary); margin: 0;
}
.light-channel-detail-close {
  margin-left: auto;
  background: transparent; border: none;
  color: var(--text-muted);
  font-size: 20px; line-height: 1;
  padding: 4px 10px; border-radius: 4px;
  cursor: pointer;
}
.light-channel-detail-close:hover { color: var(--text-primary); background: var(--bg-secondary); }
.light-channel-detail-body {
  font-size: 13px; line-height: 1.5; color: var(--text-secondary);
  margin: 0;
}
/* Tier pill in the channel-detail hero — state belongs with the weekly
   numbers, while the header stays reserved for channel identity. */
.light-channel-detail-tierpill {
  margin-left: auto;
  font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em;
  padding: 3px 9px; border-radius: 999px;
  border: 1px solid var(--border); background: var(--bg-secondary);
  color: var(--text-muted);
}
/* Tier color scheme aligns with the chart's hit-target semantics
   (chart bars: gray <5%, faint accent <30%, accent 30-100%, GREEN at
   target, GREEN above target). The header tier pill should match:
   - tier 0: muted gray (no exposure)
   - tier 1: low / accent muted
   - tier 2: moderate / accent
   - tier 3: good / accent (approaching hit-target)
   - tier 4: strong / GREEN (hit target across the week)
   Previously tier 4 was RED which conflicted with the chart's
   green-for-hit-target visual: same channel, opposite signal. */
.light-channel-detail-tierpill.tier1 { color: var(--text-secondary); border-color: var(--border); background: var(--bg-secondary); }
.light-channel-detail-tierpill.tier2 {
  color: var(--accent);
  border-color: color-mix(in srgb, var(--accent) 34%, var(--border));
  background: color-mix(in srgb, var(--accent) 10%, transparent);
}
.light-channel-detail-tierpill.tier3 {
  color: var(--accent);
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 14%, transparent);
}
.light-channel-detail-tierpill.tier4 {
  color: var(--green);
  border-color: color-mix(in srgb, var(--green) 40%, transparent);
  background: color-mix(in srgb, var(--green) 12%, transparent);
}

/* Hero stat block — the big number you actually want to see (e.g. "~1.8k IU
   vitamin D this week"). Lives directly under the header so the eye lands
   on it before the prose. */
.light-channel-hero {
  display: flex; flex-direction: column; gap: 2px;
  padding: 10px 14px; border-radius: var(--radius-sm);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--channel-accent) 10%, transparent), transparent 66%),
    color-mix(in srgb, var(--bg-secondary) 58%, transparent);
  border: 1px solid color-mix(in srgb, var(--channel-accent) 24%, var(--border));
}
.light-channel-hero-top {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.light-channel-hero-primary {
  font-size: 24px; font-weight: 700; line-height: 1.1;
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
}
.light-channel-hero-sub {
  font-size: 12px; color: var(--text-secondary); line-height: 1.4;
}
.light-channel-hero-trend {
  font-size: 11px; margin-top: 4px; font-weight: 500;
  color: var(--text-muted);
}
.light-channel-hero-trend.up   { color: var(--green); }
.light-channel-hero-trend.down { color: var(--orange); }
.light-channel-hero-trend.flat { color: var(--text-muted); }

/* Sun/device source-mix bar — slim 6px stacked bar + legend below.
   Hidden when one source is essentially 100% (no useful "mix"). */
.light-channel-mix {
  display: flex; flex-direction: column; gap: 4px;
}
.light-channel-mix-bar {
  display: flex; height: 6px; border-radius: 999px; overflow: hidden;
  background: var(--bg-secondary);
}
.light-channel-mix-sun { background: var(--channel-accent); }
.light-channel-mix-dev { background: var(--channel-accent); opacity: 0.45; }
.light-channel-mix-legend {
  display: flex; gap: 14px;
  font-size: 11px; color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}
.lc-leg-sun, .lc-leg-dev, .lc-leg-tgt {
  display: inline-block; width: 8px; height: 8px; border-radius: 2px;
  margin-right: 4px; vertical-align: middle;
}
.lc-leg-sun { background: var(--channel-accent, var(--accent)); }
.lc-leg-dev { background: var(--channel-accent, var(--accent)); opacity: 0.45; }
.lc-leg-tgt { background: transparent; border-bottom: 2px dashed var(--text-muted); border-radius: 0; height: 0; margin-bottom: 2px; }

/* 7-day rhythm chart wrapper + the legend strip below the section label. */
.light-channel-weekchart {
  margin-top: 4px;
  padding: 12px 12px 8px;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--channel-accent) 8%, transparent), transparent 62%),
    color-mix(in srgb, var(--bg-secondary) 76%, transparent);
  border: 1px solid color-mix(in srgb, var(--channel-accent) 22%, var(--border));
  border-radius: var(--radius-sm);
}
.light-channel-weekchart-label {
  font-size: 11px; color: var(--text-secondary);
  margin-bottom: 6px;
  display: flex; justify-content: space-between; align-items: center;
  gap: 10px;
}
.light-channel-weekchart-legend {
  font-size: 10px; color: var(--text-muted);
  display: inline-flex; flex-wrap: wrap; justify-content: flex-end; gap: 4px 10px;
}

/* "Daily beats banking" caption — channel-specific reason daily exposure
   matters more than one big day. Sits between the chart and Next-move
   so the user reads "what counted as a real day this week" → "here's why
   that framing is the one that matches biology" → "what to do next."  */
.light-channel-banking-note {
  margin: 0;
  padding: 8px 12px;
  font-size: 11.5px; line-height: 1.5; color: var(--text-secondary);
  border-left: 3px solid var(--text-muted);
  background: var(--neutral-soft-bg);
  border-radius: 0 6px 6px 0;
}
.light-channel-banking-note strong {
  color: var(--text-primary);
  display: inline-block; margin-right: 4px;
}

/* "Next move" — channel-specific concrete recipe + action button(s).
   Distinct from the hero (this is what to DO; hero is what you HAVE). */
.light-channel-nextmove {
  padding: 10px 14px; border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--bg-secondary) 58%, transparent);
  border: 1px solid color-mix(in srgb, var(--border) 82%, transparent);
  display: flex; flex-direction: column; gap: 8px;
}
.light-channel-nextmove-label {
  font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--text-muted);
}
.light-channel-nextmove-text {
  font-size: 13px; line-height: 1.5; color: var(--text-primary);
  margin: 0;
}
.light-channel-nextmove-text strong { color: var(--accent); font-weight: 600; }
.light-channel-nextmove-actions {
  display: flex; flex-wrap: wrap; gap: 8px; margin-top: 2px;
}
.light-channel-cta-btn { font-size: 12px !important; padding: 6px 12px !important; }
.light-channel-cit { margin-top: 12px; }
.light-channel-cit summary {
  font-size: 12px; color: var(--text-muted); cursor: pointer;
  user-select: none; padding: 4px 0;
}
.light-channel-cit-spec { font-size: 12px; color: var(--text-secondary); margin: 6px 0; }
.light-channel-cit-spec strong { color: var(--text-primary); }
.light-channel-cit-refs {
  margin: 4px 0 0 0; padding-left: 18px;
  font-size: 11px; color: var(--text-secondary); line-height: 1.55;
}
.light-channel-cit-refs li { margin-bottom: 8px; }
/* "Why this paper matters" tag under each citation — gives the user a
   one-line reason to choose between papers instead of staring at three
   bare titles. Indented + lower-contrast so it reads as annotation, not
   another link. */
.light-channel-cit-why {
  margin-top: 2px; padding-left: 2px;
  font-size: 11px; line-height: 1.45; color: var(--text-muted);
  font-style: italic;
}
/* "Suggest a better study" link at the foot of the citations expander.
   Mirrors the .rec-suggest pattern from recommendations.js — quiet
   default state, accent on hover. Pre-fills a GitHub issue with the
   channel + current ref list so the maintainer has context. */
.light-channel-cit-suggest {
  margin-top: 8px; padding-top: 8px;
  border-top: 1px dashed var(--border);
  font-size: 11px; text-align: right;
}
.light-channel-cit-suggest a { color: var(--text-muted); text-decoration: none; }
.light-channel-cit-suggest a:hover { color: var(--accent); text-decoration: underline; }
.light-channel-cit-refs a { color: var(--accent); text-decoration: none; }
.light-channel-cit-refs a:hover { text-decoration: underline; }

/* Coords hint shown below the channel pills on the Light page empty state */
.light-intro-hint {
  font-size: 12px; color: var(--text-muted);
  margin-top: 12px;
}
.light-intro-hint a { color: var(--accent); text-decoration: none; }
.light-intro-hint a:hover { text-decoration: underline; }

/* One-line action suggestion under channel grid */
.light-suggestion {
  margin-top: 12px; padding: 10px 14px;
  background: var(--orange-bg);
  border-left: 3px solid var(--orange);
  border-radius: var(--radius-sm);
  font-size: 13px; color: var(--text-secondary);
}

/* Channel-mix AI verdict for the "Your light, by what it does" section.
   Replaces (or augments, as a CTA) the static one-liner suggestion. */
.light-channel-mix-ai {
  margin: 12px 0;
}
.light-channel-mix-ai .sun-detail-ai { margin-bottom: 0; }
.light-channel-mix-ai-cta {
  display: block;
  margin-top: 8px;
  padding: 6px 14px;
  background: transparent;
  border: 1px dashed var(--border);
  border-radius: 6px;
  color: var(--accent);
  font-size: 12.5px;
  cursor: pointer;
}
.light-channel-mix-ai-cta:hover {
  border-color: var(--accent);
  border-style: solid;
}

@media (prefers-reduced-motion: reduce) {
  .light-pill-interactive,
  .light-channel-detail {
    transition: none !important;
    animation: none !important;
    transform: none !important;
  }
}

@media (pointer: coarse) {
  .light-channel-detail-close {
    min-height: 44px;
    min-width: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
}

@media (max-width: 600px) {
  /* Pill row tightens on phones — pills wrap naturally but the gap
     gets a touch larger so each is comfortable to tap. */
  .light-pills-row { gap: 6px; }
  .light-pill {
    padding: 8px 12px;     /* was 6px 12px — +2px each side for tap target */
    font-size: 13px;
  }
  .light-channels-section .light-pills-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }
  .light-channels-section .light-pill {
    min-height: 78px;
    padding: 11px 10px 10px 12px;
    grid-template-columns: 30px minmax(0, 1fr);
    grid-template-areas:
      "icon label"
      "spark spark"
      "count count";
    align-items: start;
  }
  .light-channels-section .light-pill-icon {
    width: 30px;
    height: 30px;
    font-size: 16px;
  }
  .light-channels-section .light-pill-label {
    white-space: normal;
    overflow-wrap: anywhere;
  }
  .light-channels-section .light-pill-sparkline {
    max-width: none;
    height: 16px;
  }
  .light-channels-section .light-pill-daycount {
    justify-self: start;
    text-align: left;
  }
  .light-pill-dots { font-size: 12px; }

  /* Drill-down stats row stacks vertically so the trend arrow and
     the two stat blocks aren't squeezed onto a wrapping line. */
  .light-channel-detail-stats {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .light-channel-detail-trend {
    align-self: center;
    transform: rotate(90deg);
  }
  .light-channel-hero-top {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
  .light-channel-detail-tierpill {
    margin-left: 0;
  }

  /* Channel-detail close button — keep the corner anchor but tighten
     the head row spacing. */
  .light-channel-detail { padding: 14px 16px; }
  .light-channel-detail-head { gap: 8px; }
}

@media (max-width: 375px) {
  .light-pill { padding: 7px 10px; font-size: 12px; }
  .light-pill-label { max-width: 85px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .light-channels-section .light-pill-label {
    max-width: none;
    white-space: normal;
  }
  .light-channels-section .light-pill-daycount {
    padding-inline: 6px;
    font-size: 10.5px;
  }
  .light-channels-section .light-section-title { font-size: 15px; }
}