/* ==========================================================================
   SEC 2026 — site assistant
   Built from the same tokens as the rest of the theme, so it follows the light
   and dark themes and the RTL layout without a single hard-coded colour.
   ========================================================================== */

.sec-chat {
  position: fixed;
  inset-block-end: var(--space-5);
  inset-inline-end: var(--space-5);
  z-index: var(--z-top);
  display: flex;
  flex-direction: column;
  /* Column flex: the cross axis follows the writing direction, so flex-end is
     the right edge in LTR and the left edge in RTL — the same edge the widget
     is anchored to by inset-inline-end. No RTL override needed. */
  align-items: flex-end;
  gap: var(--space-3);
}

/* The back-to-top button sits in the same corner, so it steps aside. */
.to-top { inset-block-end: calc(var(--space-5) + 64px); }

/* --- Launcher -------------------------------------------------------------- */
.sec-chat__launcher {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border: 0;
  background: var(--color-ink);
  color: var(--color-bg);
  cursor: pointer;
  box-shadow: 0 10px 24px -8px rgba(0, 0, 0, 0.45);
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease);
}
.sec-chat__launcher:hover { transform: translateY(-2px); }
.sec-chat__launcher .icon { grid-area: 1 / 1; width: 24px; height: 24px; transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease); }
.sec-chat__launcher-close { opacity: 0; transform: scale(0.6); }
.sec-chat.is-open .sec-chat__launcher-close { opacity: 1; transform: none; }
.sec-chat.is-open .sec-chat__launcher .icon:first-child { opacity: 0; transform: scale(0.6); }

/* --- Panel ----------------------------------------------------------------- */
.sec-chat__panel {
  display: flex;
  flex-direction: column;
  width: min(360px, calc(100vw - 2 * var(--space-5)));
  /* Leaves the header clear even on a short laptop window. */
  height: min(520px, calc(100vh - 210px));
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  box-shadow: 0 24px 60px -24px rgba(0, 0, 0, 0.55);
  overflow: hidden;
  transform-origin: bottom right;
  animation: sec-chat-in 220ms var(--ease);
}
[dir="rtl"] .sec-chat__panel { transform-origin: bottom left; }

@keyframes sec-chat-in {
  from { opacity: 0; transform: translateY(12px) scale(0.98); }
  to { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  .sec-chat__panel { animation: none; }
  .sec-chat__launcher { transition: none; }
}

.sec-chat__head {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-4);
  background: var(--color-panel);
  color: var(--sec-white);
}
.sec-chat__heading { flex: 1; display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.sec-chat__heading strong {
  font-size: var(--step-0);
  letter-spacing: var(--ls-nav);
  text-transform: uppercase;
}
.sec-chat__subtitle { font-size: var(--step--2); color: var(--sec-gray); line-height: 1.35; }

.sec-chat__icon-btn {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  flex: none;
  border: 0;
  background: transparent;
  color: var(--sec-white);
  cursor: pointer;
  opacity: 0.75;
  transition: opacity var(--dur) var(--ease);
}
.sec-chat__icon-btn:hover { opacity: 1; }
.sec-chat__icon-btn .icon { width: 16px; height: 16px; }

/* --- Conversation ---------------------------------------------------------- */
.sec-chat__log {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  background: var(--color-surface);
}

.sec-chat__msg { display: flex; flex-direction: column; gap: 4px; max-width: 88%; }
.sec-chat__msg--user { align-self: flex-end; align-items: flex-end; }
.sec-chat__msg--bot { align-self: flex-start; }

.sec-chat__who {
  font-size: var(--step--2);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--color-muted);
}

.sec-chat__bubble {
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  font-size: var(--step--1);
  line-height: 1.6;
  color: var(--color-ink);
}
.sec-chat__msg--user .sec-chat__bubble {
  background: var(--color-ink);
  border-color: var(--color-ink);
  color: var(--color-bg);
}

.sec-chat__link {
  display: inline-block;
  margin-top: var(--space-3);
  font-size: var(--step--2);
  font-weight: var(--fw-bold);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: inherit;
}

.sec-chat__prompts { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.sec-chat__prompt {
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-line);
  background: var(--color-bg);
  color: var(--color-ink);
  font-size: var(--step--2);
  text-align: start;
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.sec-chat__prompt:hover {
  background: var(--color-ink);
  border-color: var(--color-ink);
  color: var(--color-bg);
}

/* --- Composer -------------------------------------------------------------- */
.sec-chat__form {
  display: flex;
  gap: var(--space-2);
  padding: var(--space-3);
  border-top: 1px solid var(--color-line);
  background: var(--color-bg);
}
.sec-chat__input {
  flex: 1;
  min-width: 0;
  padding: var(--space-3);
  border: 1px solid var(--color-line);
  background: var(--color-bg);
  color: var(--color-ink);
  font-size: var(--step--1);
}
.sec-chat__input:focus { outline: none; border-color: var(--color-ink); }

.sec-chat__send {
  display: grid;
  place-items: center;
  width: 44px;
  flex: none;
  border: 0;
  background: var(--color-ink);
  color: var(--color-bg);
  cursor: pointer;
}
.sec-chat__send .icon { width: 18px; height: 18px; }
[dir="rtl"] .sec-chat__send .icon { transform: scaleX(-1); }

/* --- Small screens ---------------------------------------------------------- */
@media (max-width: 575.98px) {
  .sec-chat { inset-inline: var(--space-4); inset-block-end: var(--space-4); align-items: flex-end; }
  .sec-chat__panel { width: 100%; height: min(70vh, 460px); }
  .to-top { inset-block-end: calc(var(--space-4) + 62px); }
}