/* =====================================================================
   KOB WIDGET — CSS v1.3
   Kind of Blue · palette Aktè (#1C4E80) · cyan (#23A6DF)
   ===================================================================== */

#kob-widget {
  --kob-akte: #1C4E80;
  --kob-akte-hover: #163d64;
  --kob-cyan: #23A6DF;
  --kob-ink: #111111;
  --kob-mute: #6B6B6B;
  --kob-paper: #E8E5DD;
  --kob-paper-deep: #DCD7CC;
  --kob-shadow: 0 12px 40px rgba(17,17,17,.18), 0 4px 10px rgba(17,17,17,.06);
  --kob-radius: 14px;
  --kob-font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  font-family: var(--kob-font);
  font-size: 14px;
  line-height: 1.5;
  color: var(--kob-ink);
}

html[data-theme="dark"] #kob-widget {
  --kob-panel-bg: #1a1f2e;
  --kob-panel-header-bg: #12172a;
  --kob-panel-text: #E8E5DD;
  --kob-panel-mute: #9aa3b8;
  --kob-panel-border: rgba(232,229,221,.1);
  --kob-msg-user-bg: var(--kob-akte);
  --kob-msg-user-text: #ffffff;
  --kob-msg-bot-bg: rgba(232,229,221,.06);
  --kob-msg-bot-text: #E8E5DD;
  --kob-input-bg: rgba(232,229,221,.04);
  --kob-input-border: rgba(232,229,221,.15);
  --kob-input-text: #E8E5DD;
}

html:not([data-theme="dark"]) #kob-widget {
  --kob-panel-bg: var(--kob-paper);
  --kob-panel-header-bg: var(--kob-paper-deep);
  --kob-panel-text: var(--kob-ink);
  --kob-panel-mute: var(--kob-mute);
  --kob-panel-border: rgba(17,17,17,.08);
  --kob-msg-user-bg: var(--kob-akte);
  --kob-msg-user-text: #ffffff;
  --kob-msg-bot-bg: rgba(17,17,17,.04);
  --kob-msg-bot-text: var(--kob-ink);
  --kob-input-bg: #ffffff;
  --kob-input-border: rgba(17,17,17,.12);
  --kob-input-text: var(--kob-ink);
}

/* FAB */
.kob-fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9998;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px 12px 16px;
  background: var(--kob-akte);
  color: #ffffff;
  border: none;
  border-radius: 999px;
  font-family: var(--kob-font);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .01em;
  cursor: pointer;
  box-shadow: var(--kob-shadow);
  transition: background .18s ease, transform .18s ease, opacity .2s ease;
}
.kob-fab:hover { background: var(--kob-akte-hover); transform: translateY(-1px); }
.kob-fab:active { transform: translateY(0); }
.kob-fab.is-hidden { opacity: 0; pointer-events: none; transform: scale(.9); }
.kob-fab-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  color: var(--kob-cyan);
}
.kob-fab-label { white-space: nowrap; }

/* PANEL */
.kob-panel {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  width: 380px;
  max-width: calc(100vw - 32px);
  height: 560px;
  max-height: calc(100vh - 48px);
  background: var(--kob-panel-bg);
  border-radius: var(--kob-radius);
  box-shadow: var(--kob-shadow);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  opacity: 0;
  transform: translateY(20px) scale(.98);
  pointer-events: none;
  transition: opacity .22s ease, transform .22s ease;
  border: 1px solid var(--kob-panel-border);
}
.kob-panel.is-open { opacity: 1; transform: translateY(0) scale(1); pointer-events: auto; }

@media (max-width: 520px) {
  .kob-panel {
    width: 100vw;
    max-width: 100vw;
    height: 100vh;
    max-height: 100vh;
    bottom: 0;
    right: 0;
    border-radius: 0;
    border: none;
  }
  .kob-fab { bottom: 16px; right: 16px; padding: 12px 18px 12px 14px; }
}

/* HEADER */
.kob-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 18px;
  background: var(--kob-panel-header-bg);
  border-bottom: 1px solid var(--kob-panel-border);
  flex-shrink: 0;
}
.kob-header-text { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.kob-title { font-size: 15px; font-weight: 500; color: var(--kob-panel-text); letter-spacing: -.01em; }
.kob-subtitle { font-size: 11px; color: var(--kob-panel-mute); text-transform: uppercase; letter-spacing: .08em; }
.kob-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: transparent;
  border: none;
  border-radius: 8px;
  color: var(--kob-panel-mute);
  cursor: pointer;
  transition: background .15s ease, color .15s ease;
}
.kob-close:hover { background: var(--kob-panel-border); color: var(--kob-panel-text); }

/* MESSAGES */
.kob-messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  scroll-behavior: smooth;
  color: var(--kob-panel-text);
}
.kob-messages::-webkit-scrollbar { width: 6px; }
.kob-messages::-webkit-scrollbar-thumb { background: var(--kob-panel-border); border-radius: 3px; }
.kob-messages::-webkit-scrollbar-thumb:hover { background: var(--kob-panel-mute); }

.kob-msg {
  max-width: 85%;
  padding: 10px 14px;
  border-radius: 12px;
  font-size: 14px;
  line-height: 1.55;
  animation: kob-fade-in .18s ease-out;
}
.kob-msg p { margin: 0; }
.kob-msg p + p { margin-top: 8px; }

.kob-msg-user {
  align-self: flex-end;
  background: var(--kob-msg-user-bg);
  color: var(--kob-msg-user-text);
  border-bottom-right-radius: 4px;
}
.kob-msg-assistant {
  align-self: flex-start;
  background: var(--kob-msg-bot-bg);
  color: var(--kob-msg-bot-text);
  border-bottom-left-radius: 4px;
}
.kob-msg-thinking { padding: 12px 16px; }

.kob-inline-link {
  color: inherit;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
  text-decoration-color: var(--kob-cyan);
  transition: text-decoration-color .15s ease;
}
.kob-msg-user .kob-inline-link { text-decoration-color: rgba(255,255,255,.55); }
.kob-inline-link:hover { text-decoration-color: currentColor; }

/* DOTS */
.kob-dots { display: inline-flex; gap: 4px; align-items: center; }
.kob-dots span {
  width: 6px;
  height: 6px;
  background: var(--kob-panel-mute);
  border-radius: 50%;
  animation: kob-blink 1.2s infinite ease-in-out both;
}
.kob-dots span:nth-child(2) { animation-delay: .2s; }
.kob-dots span:nth-child(3) { animation-delay: .4s; }

@keyframes kob-blink {
  0%, 80%, 100% { opacity: .3; }
  40% { opacity: 1; }
}
@keyframes kob-fade-in {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* COMPOSER */
.kob-composer {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding: 12px 14px 14px;
  border-top: 1px solid var(--kob-panel-border);
  background: var(--kob-panel-bg);
  flex-shrink: 0;
}
.kob-input {
  flex: 1;
  min-height: 40px;
  max-height: 120px;
  padding: 10px 14px;
  border: 1px solid var(--kob-input-border);
  border-radius: 20px;
  background: var(--kob-input-bg);
  color: var(--kob-input-text);
  font-family: var(--kob-font);
  font-size: 14px;
  line-height: 1.4;
  resize: none;
  outline: none;
  transition: border-color .15s ease;
}
.kob-input:focus { border-color: var(--kob-cyan); }
.kob-input::placeholder { color: var(--kob-panel-mute); }

.kob-send {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background .15s ease;
  background: var(--kob-akte);
  color: #ffffff;
}
.kob-send:hover { background: var(--kob-akte-hover); }

/* A11Y */
@media (prefers-reduced-motion: reduce) {
  .kob-panel, .kob-fab, .kob-msg, .kob-dots span {
    transition: none;
    animation: none;
  }
}
.kob-fab:focus-visible,
.kob-close:focus-visible,
.kob-send:focus-visible,
.kob-input:focus-visible {
  outline: 2px solid var(--kob-cyan);
  outline-offset: 2px;
}