/**
 * Kohan Avatar chat panel — glowing assistant styling.
 * Opens beside the avatar (data-side), never above it. Uses the site's own
 * green accent so it stays in harmony with the rest of the page.
 */
@property --kohan-chat-angle {
  syntax: "<angle>";
  initial-value: 0deg;
  inherits: false;
}

.kohan-chat-launcher {
  position: fixed;
  z-index: 1041;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(108, 243, 164, 0.45);
  border-radius: 50%;
  background: #10151b;
  color: #6cf3a4;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.35), 0 0 0 4px rgba(108, 243, 164, 0.08);
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}
.kohan-chat-launcher:hover,
.kohan-chat-launcher:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(108, 243, 164, 0.9);
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.4), 0 0 0 5px rgba(108, 243, 164, 0.14);
  outline: none;
}

.kohan-chat-panel {
  position: fixed;
  z-index: 1042;
  /* 340x460 was too small to hold a conversation — three exchanges and the
     log was scrolling. Sized off the viewport now, with fixed ceilings so it
     never dominates a large screen. */
  width: min(420px, calc(100vw - 24px));
  height: min(640px, calc(100dvh - 120px));
  max-height: calc(100dvh - 24px);
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  border-radius: 20px;
  background:
    linear-gradient(160deg, rgba(255, 255, 255, 0.05), transparent 40%),
    rgba(14, 20, 22, 0.94);
  color: #eafff4;
  box-shadow: 0 26px 70px rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(22px) saturate(1.1);
  -webkit-backdrop-filter: blur(22px) saturate(1.1);
  opacity: 0;
  transform: translateY(8px) scale(0.98);
  transform-origin: bottom left;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.24s cubic-bezier(0.2, 0.8, 0.2, 1);
  overflow: hidden;
  isolation: isolate;
}
.kohan-chat-panel[data-side="left"] {
  transform-origin: bottom right;
}
.kohan-chat-panel.is-open {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}

/* Animated glowing conic border in the site accent. */
.kohan-chat-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  padding: 1px;
  border-radius: inherit;
  background: conic-gradient(
    from var(--kohan-chat-angle),
    transparent 0deg,
    rgba(108, 243, 164, 0.9) 60deg,
    rgba(255, 255, 255, 0.85) 90deg,
    rgba(108, 243, 164, 0.9) 120deg,
    transparent 200deg
  );
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  animation: kohan-chat-spin 5s linear infinite;
}
@keyframes kohan-chat-spin {
  to { --kohan-chat-angle: 360deg; }
}

.kohan-chat-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.kohan-chat-title strong {
  display: block;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.kohan-chat-title span {
  display: block;
  font-size: 11px;
  color: rgba(234, 255, 244, 0.6);
}
.kohan-chat-close {
  width: 30px;
  height: 30px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 9px;
  background: transparent;
  color: #eafff4;
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
}
.kohan-chat-close:hover {
  background: rgba(255, 255, 255, 0.06);
}

.kohan-chat-log {
  padding: 14px 16px;
  overflow-y: auto;
  overscroll-behavior: contain;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.kohan-chat-msg {
  max-width: 84%;
  padding: 9px 12px;
  border-radius: 14px;
  font-size: 13px;
  line-height: 1.5;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  unicode-bidi: plaintext;
}
.kohan-chat-bot {
  align-self: flex-start;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
}
.kohan-chat-user {
  align-self: flex-end;
  background: rgba(108, 243, 164, 0.16);
  border: 1px solid rgba(108, 243, 164, 0.28);
}
.kohan-chat-pending {
  opacity: 0.6;
  font-style: italic;
}

.kohan-chat-form {
  display: flex;
  gap: 8px;
  padding: 12px 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.kohan-chat-input {
  flex: 1;
  min-width: 0;
  padding: 10px 12px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.28);
  color: #eafff4;
  font: inherit;
  font-size: 13px;
}
.kohan-chat-input:focus-visible {
  outline: none;
  border-color: rgba(108, 243, 164, 0.7);
}
.kohan-chat-send {
  width: 42px;
  display: grid;
  place-items: center;
  border: 1px solid transparent;
  border-radius: 12px;
  background: #6cf3a4;
  color: #06130a;
  cursor: pointer;
  transition: filter 0.15s ease;
}
.kohan-chat-send:hover {
  filter: brightness(1.06);
}

@media (prefers-reduced-motion: reduce) {
  .kohan-chat-panel,
  .kohan-chat-launcher { transition: none; }
  .kohan-chat-panel::before { animation: none; }
}

/* ==========================================================================
   Small screens — the panel becomes a sheet
   --------------------------------------------------------------------------
   There was no responsive rule at all: on a phone the panel kept its desktop
   footprint and its left/top were computed from the avatar, which pushed it
   partly off-canvas. Below 560px it spans the width and sits above the
   avatar's corner instead of beside it. `!important` because the coordinates
   are written inline by positionPanel().
   ========================================================================== */
@media (max-width: 560px) {
  .kohan-chat-panel {
    left: 12px !important;
    right: 12px !important;
    width: auto !important;
    top: auto !important;
    bottom: 84px !important;
    height: min(70dvh, calc(100dvh - 140px));
    max-height: calc(100dvh - 120px);
    border-radius: 18px;
  }
}

/* Comfortable reading size for the transcript — 13px was tight for Persian,
   which sets smaller than Latin at the same nominal size. */
.kohan-chat-msg {
  font-size: 14px;
}
html[lang="fa"] .kohan-chat-msg,
html[lang="ar"] .kohan-chat-msg {
  font-size: 15px;
  line-height: 1.85;
}