/* ==========================================================================
   Assistant — "Ask the atlas" launcher, drawer, bubbles, result cards.
   Tokens only (light + dark). Respects prefers-reduced-motion.
   ========================================================================== */

/* -------------------------------------------------- Launcher */
.assist-launcher {
  position: fixed; right: 16px; bottom: calc(16px + var(--tabbar-h)); z-index: 90;
  display: inline-flex; align-items: center; gap: 8px; height: 48px; padding: 0 18px 0 14px;
  border-radius: var(--r-pill); border: 1px solid var(--stroke-soft);
  background: var(--bg-glass-2); color: var(--ink-100);
  backdrop-filter: blur(18px) saturate(140%); -webkit-backdrop-filter: blur(18px) saturate(140%);
  box-shadow: var(--shadow-chip), 0 0 0 1px var(--violet-a14);
  font-size: 14px; font-weight: 500; letter-spacing: 0.01em; cursor: pointer;
  transition: transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast), border-color var(--dur-fast), background var(--dur-fast);
}
.assist-launcher svg { width: 18px; height: 18px; color: var(--violet-300); }
.assist-launcher:hover { transform: translateY(-1px); border-color: var(--stroke-violet); box-shadow: var(--shadow-glow); }
.assist-launcher:focus-visible { outline: 2px solid var(--violet-500); outline-offset: 2px; }
.assist-launcher[aria-expanded="true"] { background: var(--violet-500); color: var(--ink-on-accent); border-color: transparent; }
.assist-launcher[aria-expanded="true"] svg { color: var(--ink-on-accent); }

/* -------------------------------------------------- Drawer */
.assist {
  position: fixed; top: calc(var(--nav-h) + 12px); right: 12px; bottom: 12px; z-index: 95;
  width: min(440px, calc(100vw - 24px));
  display: flex; flex-direction: column;
  border-radius: var(--r-lg); background: var(--bg-glass-2); border: 1px solid var(--stroke-soft);
  backdrop-filter: blur(26px) saturate(150%); -webkit-backdrop-filter: blur(26px) saturate(150%);
  box-shadow: var(--shadow-panel);
  transform: translateX(calc(100% + 24px)); opacity: 0; visibility: hidden;
  transition: transform var(--dur-panel) var(--ease-emphatic), opacity var(--dur-mid), visibility 0s linear var(--dur-panel);
  overflow: hidden; color: var(--ink-85); font-size: 15px;
}
.assist.is-open { transform: none; opacity: 1; visibility: visible; transition: transform var(--dur-panel) var(--ease-emphatic), opacity var(--dur-mid), visibility 0s; }

.assist__head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 16px 16px 14px 18px; border-bottom: 1px solid var(--stroke-faint); }
.assist__brand { display: flex; align-items: center; gap: 12px; min-width: 0; }
.assist__mark { width: 34px; height: 34px; flex: none; display: grid; place-items: center; border-radius: 12px; background: var(--tint-violet); border: 1px solid var(--tint-violet-bd); color: var(--tint-violet-ink); }
.assist__mark svg { width: 18px; height: 18px; }
.assist__title { font-family: var(--font-display); font-size: 19px; letter-spacing: -0.01em; color: var(--ink-100); line-height: 1.1; }
.assist__meta { display: flex; align-items: center; gap: 8px; margin-top: 4px; font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-40); }
.assist__badge { color: var(--violet-300); }
.assist__actions { display: flex; align-items: center; gap: 6px; }
.assist__clear { padding: 6px 10px; border-radius: var(--r-pill); font-size: 12px; color: var(--ink-55); background: transparent; border: 1px solid transparent; }
.assist__clear:hover { color: var(--ink-100); background: var(--fg-06); border-color: var(--stroke-soft); }
.assist__close { width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; background: var(--fg-06); border: 1px solid var(--stroke-soft); color: var(--ink-70); }
.assist__close svg { width: 16px; height: 16px; }
.assist__close:hover { color: var(--ink-100); background: var(--fg-10); }

/* -------------------------------------------------- Thread */
.assist__thread { flex: 1; overflow-y: auto; overscroll-behavior: contain; padding: 18px 16px 8px; display: flex; flex-direction: column; gap: 14px; scrollbar-width: thin; scrollbar-color: var(--fg-18) transparent; }
.assist-intro { padding: 6px 4px 2px; }
.assist-intro__lead { font-size: 16px; line-height: 1.5; color: var(--ink-100); margin: 0 0 8px; font-weight: 500; letter-spacing: -0.005em; }
.assist-intro__sub { font-size: 13.5px; line-height: 1.55; color: var(--ink-55); margin: 0; }

.assist-msg { display: flex; flex-direction: column; gap: 8px; animation: assist-rise var(--dur-mid) var(--ease-out); }
.assist-msg--user { align-items: flex-end; }
.assist-msg--bot { align-items: stretch; }
@keyframes assist-rise { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.assist-bubble { max-width: 100%; border-radius: 18px; line-height: 1.55; }
.assist-bubble--user { max-width: 86%; padding: 10px 14px; background: var(--violet-500); color: var(--ink-on-accent); border-bottom-right-radius: 6px; font-size: 15px; }
.assist-bubble--bot { padding: 14px 14px 10px; background: var(--fg-04); border: 1px solid var(--stroke-faint); border-top-left-radius: 6px; }
.assist-bubble--locked { border-color: var(--tint-amber-bd); background: var(--tint-amber); }
.assist-bubble__text { margin: 0; color: var(--ink-85); font-size: 15px; }
.assist-bubble__text + .assist-results, .assist-bubble__text + .assist-table, .assist-bubble__text + .assist-bars, .assist-bubble__text + .assist-stats, .assist-bubble__text + .assist-list, .assist-bubble__text + .assist-pillars { margin-top: 12px; }
.assist-bubble__src { margin-top: 12px; padding-top: 8px; border-top: 1px solid var(--stroke-faint); font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-40); line-height: 1.5; }
.assist-bubble__lock { display: inline-flex; align-items: center; gap: 6px; margin-bottom: 8px; font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--tint-amber-ink); }
.assist-bubble__lock svg { width: 13px; height: 13px; }

/* Typing indicator */
.assist-typing { display: inline-flex; gap: 5px; align-items: center; padding: 14px 16px; width: max-content; }
.assist-typing span { width: 6px; height: 6px; border-radius: 50%; background: var(--ink-40); animation: assist-dot 1.1s infinite ease-in-out; }
.assist-typing span:nth-child(2) { animation-delay: 0.15s; }
.assist-typing span:nth-child(3) { animation-delay: 0.3s; }
@keyframes assist-dot { 0%, 70%, 100% { transform: translateY(0); opacity: 0.45; } 35% { transform: translateY(-4px); opacity: 1; } }

/* -------------------------------------------------- Results */
.assist-results { display: flex; flex-direction: column; gap: 6px; }
.assist-results--kpis { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px; }
.assist-results--kpis > .assist-card { grid-column: 1 / -1; }

.assist-card {
  display: flex; align-items: center; gap: 10px; width: 100%; text-align: left; padding: 10px 12px;
  border-radius: 12px; background: var(--fg-04); border: 1px solid var(--stroke-faint); color: var(--ink-85);
  text-decoration: none; cursor: pointer; transition: background var(--dur-fast), border-color var(--dur-fast), transform var(--dur-fast);
}
.assist-card:hover { background: var(--fg-08); border-color: var(--stroke-soft); transform: translateX(2px); }
.assist-card:focus-visible { outline: 2px solid var(--violet-500); outline-offset: 1px; }
.assist-card[disabled] { cursor: default; }
.assist-card[disabled]:hover { transform: none; background: var(--fg-04); }
.assist-card__dot { width: 8px; height: 8px; flex: none; border-radius: 50%; background: var(--c-clinic); box-shadow: 0 0 0 3px var(--fg-06); }
.assist-card__dot--hospital { background: var(--c-hospital); }
.assist-card__dot--clinic { background: var(--c-clinic); }
.assist-card__dot--cancer { background: var(--c-cancer); }
.assist-card__dot--research { background: var(--c-research); }
.assist-card__code { flex: none; min-width: 34px; height: 28px; display: grid; place-items: center; padding: 0 6px; border-radius: 8px; background: var(--tint-violet); border: 1px solid var(--tint-violet-bd); color: var(--tint-violet-ink); font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em; }
.assist-card__code svg { width: 14px; height: 14px; }
.assist-card__body { display: flex; flex-direction: column; gap: 2px; min-width: 0; flex: 1; }
.assist-card__name { font-size: 13.5px; font-weight: 500; color: var(--ink-100); line-height: 1.3; overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.assist-card__sub { font-size: 12px; color: var(--ink-55); line-height: 1.35; }
.assist-card__tags { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 4px; }
.assist-card__tags .tag { padding: 2px 7px; font-size: 10px; }
.assist-card__go { flex: none; width: 22px; height: 22px; display: grid; place-items: center; color: var(--ink-40); }
.assist-card__go svg { width: 14px; height: 14px; }
.assist-card:hover .assist-card__go { color: var(--violet-300); }
.assist-card--link { border-color: var(--tint-violet-bd); background: var(--tint-violet); }
.assist-card--link .assist-card__name { color: var(--tint-violet-ink); }
.assist-card--link .assist-card__go { color: var(--tint-violet-ink); }

.assist-kpi { display: flex; flex-direction: column; gap: 2px; padding: 10px 12px; border-radius: 12px; background: var(--fg-04); border: 1px solid var(--stroke-faint); text-decoration: none; color: inherit; min-width: 0; }
.assist-kpi:hover { border-color: var(--stroke-soft); background: var(--fg-06); }
.assist-kpi__v { font-family: var(--font-condensed); font-weight: 800; font-size: 22px; line-height: 1; color: var(--ink-100); letter-spacing: -0.01em; }
.assist-kpi__l { font-size: 12px; color: var(--ink-70); line-height: 1.3; }
.assist-kpi__s { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-40); }

/* Structured blocks produced by the engine (html) */
.assist-table { display: flex; flex-direction: column; border: 1px solid var(--stroke-faint); border-radius: 12px; overflow: hidden; font-size: 12.5px; }
.assist-table__row { display: grid; grid-template-columns: minmax(0, 1.6fr) repeat(auto-fit, minmax(48px, 1fr)); gap: 8px; padding: 7px 10px; border-top: 1px solid var(--stroke-faint); color: var(--ink-70); }
.assist-table__row:first-child { border-top: 0; }
.assist-table__row--head { background: var(--fg-04); font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-40); }
.assist-table__row span + span { text-align: right; font-variant-numeric: tabular-nums; color: var(--ink-100); }
.assist-table--compare .assist-table__row { grid-template-columns: minmax(0, 1.5fr) 1fr 1fr; }
.assist-table--compare .assist-table__row--head span + span { color: var(--violet-300); }

.assist-bars { display: flex; flex-direction: column; gap: 5px; }
.assist-bar { display: grid; grid-template-columns: minmax(0, 96px) 1fr 34px; align-items: center; gap: 8px; font-size: 12.5px; color: var(--ink-70); }
.assist-bar__l { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.assist-bar__track { height: 6px; border-radius: 3px; background: var(--fg-06); overflow: hidden; }
.assist-bar__track i { display: block; height: 100%; border-radius: 3px; background: var(--violet-500); }
.assist-bar b { text-align: right; color: var(--ink-100); font-variant-numeric: tabular-nums; font-weight: 600; }

.assist-stats { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px; }
.assist-stats .stat__v { font-size: 22px; }
.assist-stats + .assist-list { margin-top: 10px; }

.assist-list { display: flex; flex-direction: column; gap: 8px; font-size: 13px; line-height: 1.5; color: var(--ink-70); }
.assist-list > div { padding-left: 10px; border-left: 2px solid var(--tint-violet-bd); }
.assist-list b { color: var(--ink-100); font-weight: 600; }
.assist-list--quotes > div { font-family: var(--font-display); font-style: italic; font-size: 14.5px; color: var(--ink-85); }

.assist-pillars { display: flex; flex-direction: column; gap: 6px; }
.assist-pillar { display: grid; grid-template-columns: 1fr auto; gap: 2px 10px; padding: 9px 12px; border-radius: 12px; background: var(--fg-04); border: 1px solid var(--stroke-faint); border-left: 3px solid var(--violet-500); font-size: 13px; }
.assist-pillar--cyan { border-left-color: var(--cyan); }
.assist-pillar--green { border-left-color: var(--green); }
.assist-pillar b { color: var(--ink-100); font-weight: 600; }
.assist-pillar > span { font-family: var(--font-mono); font-size: 11px; color: var(--ink-55); align-self: center; }
.assist-pillar small { grid-column: 1 / -1; font-size: 11.5px; color: var(--ink-55); line-height: 1.4; }

/* -------------------------------------------------- Chips */
.assist__chips, .assist-follow { display: flex; flex-wrap: wrap; gap: 6px; }
.assist__chips { padding: 6px 16px 10px; }
.assist__chips[hidden] { display: none; }
.assist-follow { padding: 0 2px; }
.assist-chip { padding: 8px 12px; border-radius: var(--r-pill); background: var(--fg-04); border: 1px solid var(--stroke-soft); color: var(--ink-70); font-size: 13px; line-height: 1.2; text-align: left; cursor: pointer; transition: background var(--dur-fast), border-color var(--dur-fast), color var(--dur-fast); }
.assist-chip:hover { background: var(--tint-violet); border-color: var(--tint-violet-bd); color: var(--tint-violet-ink); }
.assist-chip:focus-visible { outline: 2px solid var(--violet-500); outline-offset: 1px; }
.assist-chip--sm { padding: 6px 10px; font-size: 12px; }

/* -------------------------------------------------- Input row */
.assist__form { display: flex; align-items: center; gap: 8px; padding: 10px 12px 6px; border-top: 1px solid var(--stroke-faint); }
.assist__input { flex: 1; min-width: 0; height: 44px; padding: 0 16px; border-radius: var(--r-pill); background: var(--fg-05); border: 1px solid var(--stroke-soft); color: var(--ink-100); font-size: 15px; outline: 0; transition: border-color var(--dur-fast), box-shadow var(--dur-fast); }
.assist__input::placeholder { color: var(--ink-40); }
.assist__input:focus { border-color: var(--stroke-violet); box-shadow: 0 0 0 4px var(--violet-a14); }
.assist__send { flex: none; width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center; background: var(--violet-500); color: var(--ink-on-accent); border: 0; cursor: pointer; transition: background var(--dur-fast), transform var(--dur-fast); }
.assist__send svg { width: 18px; height: 18px; }
.assist__send:hover { background: var(--violet-700); transform: translateY(-1px); }
.assist__send[disabled] { opacity: 0.5; pointer-events: none; }
.assist__foot { margin: 0; padding: 0 16px 12px; font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-40); }
.assist__foot kbd { font-family: inherit; padding: 1px 5px; border-radius: 4px; border: 1px solid var(--stroke-soft); background: var(--fg-04); color: var(--ink-55); }

/* -------------------------------------------------- Mobile: bottom sheet */
@media (max-width: 899px) {
  .assist { top: auto; left: 0; right: 0; bottom: 0; width: 100%; height: min(82vh, 100dvh - 56px); border-radius: var(--r-lg) var(--r-lg) 0 0; transform: translateY(105%); }
  .assist.is-open { transform: none; }
  .assist__thread { padding: 14px 14px 8px; }
  .assist__form { padding-bottom: calc(6px + env(safe-area-inset-bottom, 0px)); }
  .assist__foot { display: none; }
  .assist-launcher { padding: 0; width: 48px; justify-content: center; }
  .assist-launcher__label { display: none; }
}
@media (min-width: 900px) {
  .assist-bubble--bot { max-width: 100%; }
}

/* -------------------------------------------------- Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .assist, .assist.is-open { transition: none; }
  .assist-msg { animation: none; }
  .assist-typing span { animation: none; opacity: 0.7; }
  .assist-card:hover, .assist-launcher:hover, .assist__send:hover { transform: none; }
}