/* drills.css — the Drills browser screen (renderDrills) + the shared drill
   SUMMARY card / DETAIL view that live in js/ui.js (drillCard, drillDetail).
   Split out of styles.css to keep every file under 800 lines. Uses ONLY the
   semantic tokens from styles.css plus the fixed intensity hues carried by the
   shared .badge--*/.dot--* classes (navy text), so it reads correctly in BOTH
   light and dark themes. Selected chips reuse the app's ✓-glyph cue, so the
   selected state never rests on colour alone. No nested cards. */

/* Intro line — full --text (not muted) since it sits on --bg. */
.drills-intro { margin: calc(-1 * var(--sp-2)) 0 var(--sp-4); color: var(--text); }

/* ---- Filter controls ------------------------------------------------------ */
.drills-controls { display: flex; flex-direction: column; gap: var(--sp-4); margin-bottom: var(--sp-5); }
.drills-controls[hidden] { display: none; }

/* Search field with a leading icon inside the input frame. */
.drills-search { position: relative; }
.drills-search__icon {
  position: absolute;
  top: 50%;
  left: var(--sp-4);
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
  display: inline-flex;
}
/* Leave room for the leading icon. Qualify with `input` so this beats the base
   `input.input { padding: … }` shorthand (equal specificity, later in source). */
input.drills-search__input { padding-left: calc(var(--sp-4) + 30px); }
/* Hide the native search "clear" control so our own Clear affordance is the
   single, consistent way to reset. */
.drills-search__input::-webkit-search-cancel-button { -webkit-appearance: none; appearance: none; }

.drills-fgroup { display: flex; flex-direction: column; gap: var(--sp-2); }
.drills-chips { gap: var(--sp-2); }

/* ---- Collapsible filter disclosure ---------------------------------------- */
/* Keeps the search visible but folds the chip groups away so they don't fill
   the screen. The count badge shows active filters while collapsed. */
.drills-filters__toggle {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  width: 100%;
  min-height: var(--tap-min);
  padding: var(--sp-2) var(--sp-4);
  background: var(--surface);
  border: 2px solid var(--field-border);
  border-radius: var(--radius-pill);
  color: var(--text);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}
.drills-filters__toggle:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.drills-filters__toggle-icon, .drills-filters__chev { display: inline-flex; color: var(--text-muted); }
.drills-filters__chev { margin-left: auto; transition: transform 0.15s var(--ease); }
.drills-filters__chev.is-open { transform: rotate(180deg); }
.drills-filters__count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  border-radius: var(--radius-pill);
  background: var(--primary);
  color: var(--on-primary);
  font-size: var(--fs-xs);
  font-weight: 800;
}
.drills-filters__count[hidden] { display: none; }
.drills-filters { display: flex; flex-direction: column; gap: var(--sp-4); }
.drills-filters[hidden] { display: none; }

/* Small category colour dot inside a chip (decorative; the label carries
   meaning). Sits before the chip text. */
.chip__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex: none;
  margin-right: 6px;
  border: 1.5px solid var(--text);
}
/* When a chip is selected its ✓ glyph leads, so drop the colour dot's extra gap. */
.chip.is-on .chip__dot { margin-right: 4px; }

/* ---- Results count + clear ------------------------------------------------ */
.drills-count {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  margin-bottom: var(--sp-3);
}
.drills-count__num { font-weight: 800; color: var(--text); }
.drills-clear {
  min-height: var(--tap-min);
  padding: 0 var(--sp-3);
  border: none;
  background: transparent;
  color: var(--link);           /* deep coral text link: clears 4.5:1 on --bg in both themes */
  font-size: var(--fs-sm);
  font-weight: 800;
  cursor: pointer;
  border-radius: var(--radius-pill);
}
.drills-empty__cta { margin-top: var(--sp-4); }

/* ---- Results list (drill summary cards) ----------------------------------- */
.drills-list { display: flex; flex-direction: column; gap: var(--sp-3); }

/* Each summary card is a full-width <button>; reset button chrome and lay it out
   as a left-aligned stack. */
.drill-card {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  width: 100%;
  text-align: left;
  cursor: pointer;
  font: inherit;
  color: var(--text);
  padding: var(--sp-4);
  transition: background-color 0.2s var(--ease), border-color 0.2s var(--ease), transform 0.06s var(--ease);
}
.drill-card:active { transform: translateY(1px); }

.drill-card__top { display: flex; flex-wrap: wrap; align-items: center; gap: var(--sp-2); }
.drill-card__age { font-size: var(--fs-sm); font-weight: 700; color: var(--text-muted); }
.drill-card__name { margin: 0; font-size: var(--fs-h3); }

.drill-card__foot {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  margin-top: 2px;
}
.drill-card__diff { display: flex; align-items: center; gap: var(--sp-2); min-width: 0; }
.drill-card__diff .eyebrow { margin: 0; }
.drill-card__time { font-size: var(--fs-sm); font-weight: 700; color: var(--text-muted); }
.drill-card__chev { margin-left: auto; color: var(--text-muted); flex: none; display: inline-flex; }

/* "Camp-friendly" marker (icon + word) — a tinted pill; the word carries the
   meaning so it never rests on colour. */
.drill-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  background: var(--surface-2);
  color: var(--text);
  font-size: var(--fs-xs);
  font-weight: 800;
}
.drill-tag__icon { display: inline-flex; color: var(--accent); }

/* ---- Detail view ---------------------------------------------------------- */
.drills-detail-wrap { display: flex; flex-direction: column; gap: var(--sp-3); }
.drills-back {
  align-self: flex-start;
  min-height: var(--tap-min);
  padding: 0 var(--sp-4);
  font-size: var(--fs-sm);
}
.drills-back__icon { display: inline-flex; }

.drill-detail__head { margin-bottom: var(--sp-4); }
.drill-detail__badges { display: flex; flex-wrap: wrap; gap: var(--sp-2); margin-bottom: var(--sp-2); }
.drill-detail__name { margin: 0; font-size: var(--fs-title); letter-spacing: -0.02em; }
.drill-detail__name:focus { outline: none; }   /* programmatic focus target */

/* Stat strip (difficulty / age / time). */
.drill-detail__stats {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: var(--sp-3);
  padding: var(--sp-4) 0;
  margin-bottom: var(--sp-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.drill-detail__stat { display: flex; flex-direction: column; gap: var(--sp-2); min-width: 0; }
.drill-detail__stat strong { font-size: var(--fs-body); color: var(--text); }
.drill-detail__diff { display: flex; align-items: center; flex-wrap: wrap; gap: var(--sp-2); }
.drill-detail__diff-word { font-weight: 800; color: var(--text); font-size: var(--fs-sm); }

.drill-detail__body { display: flex; flex-direction: column; gap: var(--sp-4); margin: var(--sp-4) 0; }
.drill-detail__section p { margin: var(--sp-1) 0 0; color: var(--text); }
.drill-detail__steps,
.drill-detail__cues { margin: var(--sp-1) 0 0; padding-left: 1.25em; color: var(--text); }
.drill-detail__steps li, .drill-detail__cues li { margin-bottom: var(--sp-2); }
.drill-detail__steps li::marker { font-weight: 800; color: var(--text-muted); }

/* Easier / harder, side by side on wider phones, stacked on the narrowest. */
.drill-detail__adjust {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-3);
}
.drill-detail__adjust-col {
  padding: var(--sp-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-input);
  background: var(--surface-2);
}
.drill-detail__adjust-col p { margin: var(--sp-1) 0 0; color: var(--text); font-size: var(--fs-sm); }
/* On the tinted col, the eyebrow must be full --text (muted would miss AA there). */
.drill-detail__adjust-col .eyebrow { color: var(--text); }

@media (max-width: 360px) {
  .drill-detail__stats { grid-template-columns: 1fr; gap: var(--sp-2); }
  .drill-detail__adjust { grid-template-columns: 1fr; }
}

/* ---- Hover (pointer devices only, so touch never sticks) ------------------ */
@media (hover: hover) {
  .drill-card:hover { background: var(--surface-2); border-color: var(--field-border); }
  .drills-clear:hover { text-decoration: underline; }   /* underline link on pointer hover only */
}