/* Message Pins extension for Hermes WebUI.
   Scoped to hwx-pin-* classes so it cannot collide with core styles.
   Uses core CSS variables (with fallbacks) so it adapts to light/dark themes. */

/* ── per-message pin button ────────────────────────────────────────────── */
.hwx-pin-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--muted, #888);
  background: transparent;
  border: none;
  transition: color .12s ease, opacity .12s ease, transform .12s ease;
  /* Reliable hit target (Frank, PR #19 round 2): core keeps .msg-actions quiet
     with pointer-events:none at rest, and a tiny/variable-size button made the
     unpin click resolve to .msg-foot or the SVG child instead of the button.
     Force a stable 24x24 clickable button and make the SVG non-interactive so
     elementFromPoint() always lands on the BUTTON. */
  position: relative;
  z-index: 2;
  pointer-events: auto;
  flex: 0 0 auto;
  width: 24px;
  min-width: 24px;
  height: 24px;
  padding: 0;
  line-height: 1;
  border-radius: 6px;
}
.hwx-pin-btn svg { pointer-events: none; }
.hwx-pin-btn:hover { color: var(--text, #111); }
/* Active (pinned) state: make it clearly, obviously "on" — filled accent chip,
   not just a color swap, so success is discoverable right where the user clicked
   (Frank, PR #19: active feedback was too subtle). Keep the size stable so the
   hit target doesn't shift between pin/unpin. */
.hwx-pin-btn--active {
  color: var(--accent-contrast, #fff);
  background: var(--accent, #3b82f6);
  border-radius: 6px;
}
.hwx-pin-btn--active:hover { color: var(--accent-contrast, #fff); opacity: .9; }
.hwx-pin-btn--inline.hwx-pin-btn--active { padding: 0; }

/* Floating fallback button (when a row has no .msg-actions bar). */
.hwx-pin-host { position: relative; }
.hwx-pin-btn--float {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 26px;
  height: 26px;
  border-radius: 6px;
  background: var(--code-bg, rgba(127, 127, 127, .12));
  border: 1px solid var(--border2, rgba(127, 127, 127, .25));
  opacity: 0;
  z-index: 4;
}
[data-msg-idx]:hover .hwx-pin-btn--float,
.hwx-pin-btn--float:focus-visible { opacity: 1; }
/* A pinned row keeps its floating button visible even when not hovered. */
.hwx-pinned-row .hwx-pin-btn--float { opacity: 1; }

/* Pinned row marker — a visible accent rail on the left so a pinned message is
   obvious at a glance, not just via the button state (Frank, PR #19). */
.hwx-pinned-row { position: relative; }
.hwx-pinned-row::before {
  content: '';
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 3px;
  border-radius: 0 2px 2px 0;
  background: var(--accent, #3b82f6);
  opacity: .8;
  pointer-events: none;
}

/* ── jump flash highlight ──────────────────────────────────────────────── */
.hwx-pin-flash {
  animation: hwx-pin-flash-kf 1.4s ease;
  border-radius: 8px;
}
@keyframes hwx-pin-flash-kf {
  0%   { box-shadow: 0 0 0 0 var(--accent, #3b82f6); }
  20%  { box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent, #3b82f6) 45%, transparent); }
  100% { box-shadow: 0 0 0 0 transparent; }
}

/* ── header button + badge ─────────────────────────────────────────────── */
/* NOTE: top/right are set in JS (positionHeaderButton) so the button never
   overlaps core's #jumpToSessionStartBtn — do not hard-code them here. */
.hwx-pin-header-btn {
  position: absolute;
  top: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 999px;
  border: 1px solid var(--border2, rgba(127, 127, 127, .25));
  background: var(--code-bg, rgba(127, 127, 127, .1));
  color: var(--muted, #888);
  cursor: pointer;
  z-index: 11;
  transition: color .12s ease, border-color .12s ease, background .12s ease, transform .12s ease;
}
.hwx-pin-header-btn:hover {
  color: var(--text, #111);
  border-color: var(--border, rgba(127, 127, 127, .4));
  transform: translateY(-1px);
}
.hwx-pin-header-btn--has-pins { color: var(--accent, #3b82f6); }
.hwx-pin-badge {
  position: absolute;
  top: -5px;
  right: -5px;
  min-width: 16px;
  height: 16px;
  padding: 0 4px;
  border-radius: 999px;
  background: var(--accent, #3b82f6);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  line-height: 16px;
  text-align: center;
}

/* ── popover ───────────────────────────────────────────────────────────── */
.hwx-pin-popover {
  position: fixed;
  z-index: 1000;
  max-height: 60vh;
  overflow-y: auto;
  background: var(--surface, #fff);
  color: var(--text, #111);
  border: 1px solid var(--border, rgba(127, 127, 127, .3));
  border-radius: 10px;
  box-shadow: 0 8px 28px rgba(0, 0, 0, .28);
  padding: 6px;
}
.hwx-pin-popover-head {
  font-size: 12px;
  font-weight: 700;
  color: var(--muted, #888);
  padding: 6px 8px 8px;
}
.hwx-pin-popover-empty {
  font-size: 12px;
  color: var(--muted, #888);
  padding: 4px 8px 10px;
  line-height: 1.4;
}
.hwx-pin-item {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  text-align: left;
  padding: 8px 8px;
  border: none;
  border-radius: 7px;
  background: transparent;
  color: var(--text, #111);
  font-size: 13px;
  cursor: pointer;
  transition: background .12s ease;
}
.hwx-pin-item:hover { background: var(--hover-bg, rgba(127, 127, 127, .12)); }
.hwx-pin-item-text {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.hwx-pin-item-remove {
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 5px;
  color: var(--muted, #888);
  font-size: 16px;
  line-height: 1;
}
.hwx-pin-item-remove:hover {
  color: var(--text, #111);
  background: var(--border2, rgba(127, 127, 127, .25));
}

/* ── toast ─────────────────────────────────────────────────────────────── */
.hwx-pin-toast {
  position: fixed;
  left: 50%;
  bottom: 84px;
  transform: translateX(-50%) translateY(8px);
  max-width: min(420px, 90vw);
  padding: 10px 16px;
  border-radius: 8px;
  background: var(--surface, #1f2330);
  color: var(--text, #fff);
  border: 1px solid var(--border, rgba(127, 127, 127, .3));
  box-shadow: 0 6px 20px rgba(0, 0, 0, .3);
  font-size: 13px;
  z-index: 1100;
  opacity: 0;
  pointer-events: none;
  transition: opacity .18s ease, transform .18s ease;
}
.hwx-pin-toast--show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .hwx-pin-btn,
  .hwx-pin-header-btn,
  .hwx-pin-toast,
  .hwx-pin-item { transition: none; }
  .hwx-pin-flash { animation: none; }
}