/* Hallmark · component: chatbot · genre: atmospheric · theme: Lumen Night Foundry
 * states: default · hover · focus · active · disabled · loading · error · success
 * contrast: pass (46–50)
 * Pre-emit critique: P4 H4 E5 S4 R5 V4
 */

.chatbot-widget {
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-lg);
  z-index: 1000;
  transition: bottom var(--dur-short) var(--ease-out);
}

/* ── Toggle ─────────────────────────────────────────── */
.chatbot-toggle {
  width: 3.25rem;
  height: 3.25rem;
  border-radius: var(--radius-md);
  background: var(--color-accent);
  border: 1px solid transparent;
  box-shadow:
    0 0 0 1px var(--color-shade),
    0 8px 28px var(--color-shade-2),
    0 0 24px var(--color-glow-2);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  color: var(--color-paper);
  transition:
    background var(--dur-micro) var(--ease-out),
    transform var(--dur-micro) var(--ease-out),
    box-shadow var(--dur-short) var(--ease-out),
    border-color var(--dur-micro) var(--ease-out);
}

.chatbot-toggle:hover,
.chatbot-toggle.is-hover {
  background: var(--color-accent-2);
  transform: translateY(-2px);
  box-shadow:
    0 0 0 1px var(--color-shade),
    0 12px 32px var(--color-shade-2),
    0 0 32px var(--color-glow);
}

.chatbot-toggle:focus-visible,
.chatbot-toggle.is-focus {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
}

.chatbot-toggle:active,
.chatbot-toggle.is-active {
  transform: translateY(1px);
}

.chatbot-toggle:disabled,
.chatbot-toggle.is-disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.chatbot-toggle .chatbot-icon,
.chatbot-toggle .chatbot-close-icon {
  width: 1.25rem;
  height: 1.25rem;
  position: absolute;
  transition:
    opacity var(--dur-short) var(--ease-out),
    transform var(--dur-short) var(--ease-out);
}

.chatbot-toggle .chatbot-icon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

.chatbot-toggle .chatbot-close-icon {
  opacity: 0;
  transform: rotate(90deg) scale(0.85);
}

.chatbot-widget.open .chatbot-toggle {
  background: var(--color-paper-3);
  border-color: var(--color-rule-2);
  color: var(--color-ink);
  box-shadow: 0 8px 24px var(--color-shade);
}

.chatbot-widget.open .chatbot-toggle:hover,
.chatbot-widget.open .chatbot-toggle.is-hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  box-shadow: 0 8px 24px var(--color-shade);
}

.chatbot-widget.open .chatbot-toggle .chatbot-icon {
  opacity: 0;
  transform: rotate(-90deg) scale(0.85);
}

.chatbot-widget.open .chatbot-toggle .chatbot-close-icon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

/* ── Window ─────────────────────────────────────────── */
.chatbot-window {
  position: absolute;
  bottom: 4.25rem;
  right: 0;
  width: min(22.5rem, calc(100vw - 2rem));
  height: 35rem;
  max-height: calc(100vh - 7.5rem);
  display: flex;
  flex-direction: column;
  background:
    linear-gradient(
      165deg,
      var(--color-paper-emit) 0%,
      transparent 42%
    ),
    var(--color-paper-2);
  border: 1px solid var(--color-rule-2);
  border-radius: var(--radius-md);
  box-shadow:
    0 0 0 1px var(--color-shade),
    0 24px 64px var(--color-shade-3),
    0 0 40px var(--color-glow-2);
  overflow: hidden;
  opacity: 0;
  transform: translateY(0.75rem) scale(0.98);
  pointer-events: none;
  transition:
    opacity var(--dur-short) var(--ease-out),
    transform var(--dur-short) var(--ease-out);
}

.chatbot-widget.open .chatbot-window {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: all;
}

/* ── Header ─────────────────────────────────────────── */
.chatbot-header {
  position: relative;
  flex-shrink: 0;
  padding: var(--space-md) var(--space-lg);
  background: var(--color-paper-3);
  border-bottom: 1px solid var(--color-rule);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-2xs) var(--space-sm);
  align-items: center;
}

.chatbot-header::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 2px;
  background: var(--color-accent);
}

.chatbot-header h3 {
  margin: 0;
  font-family: var(--font-display) !important;
  font-size: var(--text-md) !important;
  font-weight: 500 !important;
  font-style: normal !important;
  letter-spacing: -0.01em !important;
  color: var(--color-ink) !important;
  line-height: 1.2;
}

.chatbot-subtitle {
  margin: 0;
  grid-column: 1;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: var(--tracking-micro);
  text-transform: uppercase;
  color: var(--color-ink-3);
}

.chatbot-status {
  grid-column: 2;
  grid-row: 1 / span 2;
  align-self: center;
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-ink-3);
}

.chatbot-status::before {
  content: "";
  width: 0.375rem;
  height: 0.375rem;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 8px var(--color-glow);
}

.chatbot-mobile-close {
  display: none;
  position: absolute;
  top: 50%;
  right: var(--space-sm);
  transform: translateY(-50%);
  width: 2rem;
  height: 2rem;
  padding: 0;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-ink-3);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition:
    color var(--dur-micro) var(--ease-out),
    background var(--dur-micro) var(--ease-out),
    border-color var(--dur-micro) var(--ease-out);
}

.chatbot-mobile-close:hover,
.chatbot-mobile-close.is-hover {
  color: var(--color-ink);
  background: var(--color-paper);
  border-color: var(--color-rule);
}

.chatbot-mobile-close:focus-visible,
.chatbot-mobile-close.is-focus {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.chatbot-mobile-close svg {
  width: 1rem;
  height: 1rem;
}

/* ── Messages ───────────────────────────────────────── */
.chatbot-messages {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overflow-x: clip;
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  background:
    linear-gradient(var(--rule-blueprint) 1px, transparent 1px),
    linear-gradient(90deg, var(--rule-blueprint) 1px, transparent 1px),
    var(--color-paper);
  background-size: 24px 24px, 24px 24px, auto;
}

.chatbot-messages::-webkit-scrollbar {
  width: 4px;
}

.chatbot-messages::-webkit-scrollbar-track {
  background: transparent;
}

.chatbot-messages::-webkit-scrollbar-thumb {
  background: var(--color-rule-2);
  border-radius: var(--radius-sm);
}

.chatbot-messages::-webkit-scrollbar-thumb:hover {
  background: var(--color-ink-3);
}

.chatbot-message {
  display: flex;
  margin: 0;
}

.message-content {
  max-width: 84%;
  min-width: 0;
  padding: 0.625rem 0.875rem;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  line-height: 1.55;
  font-weight: 300;
  color: var(--color-ink);
  overflow-wrap: anywhere;
  word-wrap: break-word;
}

.bot-message .message-content {
  background: var(--color-paper-3);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-sm) var(--radius-md) var(--radius-md) var(--radius-md);
  box-shadow: 0 4px 16px var(--color-shade);
}

.user-message {
  justify-content: flex-end;
}

.user-message .message-content {
  background: var(--color-accent-soft);
  border: 1px solid var(--color-accent-edge);
  color: var(--color-ink);
  border-radius: var(--radius-md) var(--radius-sm) var(--radius-md) var(--radius-md);
}

.chatbot-message.is-error .message-content {
  border-color: var(--color-accent-2);
  background: var(--color-warn-soft);
}

.chatbot-message.is-success .message-content {
  border-color: var(--color-accent);
}

/* Markdown inside bubbles */
.message-content h1,
.message-content h2,
.message-content h3,
.message-content h4,
.message-content h5,
.message-content h6 {
  margin: 0.5em 0;
  font-weight: 500;
  font-style: normal;
  line-height: 1.3;
  font-family: var(--font-display) !important;
  letter-spacing: -0.01em !important;
  color: var(--color-ink);
}

.message-content h1 { font-size: 1.2em; }
.message-content h2 { font-size: 1.1em; }
.message-content h3 { font-size: 1em; }

.message-content p {
  margin: 0.4em 0;
}

.message-content p:first-child { margin-top: 0; }
.message-content p:last-child { margin-bottom: 0; }

.message-content ul,
.message-content ol {
  margin: 0.4em 0;
  padding-left: 1.25em;
}

.message-content li {
  margin: 0.2em 0;
}

.message-content strong { font-weight: 600; }
.message-content em { font-style: italic; }

.message-content code {
  background: var(--color-paper);
  padding: 0.12em 0.35em;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-rule);
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: var(--color-accent);
}

.user-message .message-content code {
  background: var(--color-shade);
  border-color: var(--color-accent-edge);
  color: var(--color-accent);
}

.message-content pre {
  background: var(--color-paper);
  padding: var(--space-sm);
  border-radius: var(--radius-sm);
  overflow-x: auto;
  margin: 0.5em 0;
  border: 1px solid var(--color-rule);
  border-left: 2px solid var(--color-accent);
}

.message-content pre code {
  background: transparent;
  border: none;
  padding: 0;
}

.message-content a {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

.message-content a:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.message-content blockquote {
  border-left: 2px solid var(--color-rule-2);
  padding-left: 0.75em;
  margin: 0.5em 0;
  color: var(--color-ink-2);
}

/* ── Composer ───────────────────────────────────────── */
.chatbot-input-container {
  display: flex;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-paper-3);
  border-top: 1px solid var(--color-rule);
  flex-shrink: 0;
}

.chatbot-input {
  flex: 1;
  min-width: 0;
  padding: 0.625rem 0.875rem;
  border: 1px solid var(--color-rule-2);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.8125rem;
  background: var(--color-paper);
  color: var(--color-ink);
  outline: none;
  transition:
    border-color var(--dur-micro) var(--ease-out),
    box-shadow var(--dur-micro) var(--ease-out);
}

.chatbot-input::placeholder {
  color: var(--color-ink-3);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.04em;
}

.chatbot-input:hover,
.chatbot-input.is-hover {
  border-color: var(--color-ink-3);
}

.chatbot-input:focus,
.chatbot-input:focus-visible,
.chatbot-input.is-focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 2px var(--color-accent-ring);
}

.chatbot-input:disabled,
.chatbot-input.is-disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.chatbot-input.is-error {
  border-color: var(--color-accent-2);
  box-shadow: 0 0 0 2px var(--color-warn-ring);
}

.chatbot-input.is-success {
  border-color: var(--color-accent);
}

/* Send */
.chatbot-send-btn {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-sm);
  background: var(--color-accent);
  border: 1px solid transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-paper);
  transition:
    background var(--dur-micro) var(--ease-out),
    transform var(--dur-micro) var(--ease-out),
    opacity var(--dur-micro) var(--ease-out);
}

.chatbot-send-btn:hover,
.chatbot-send-btn.is-hover {
  background: var(--color-accent-2);
  transform: translateY(-1px);
}

.chatbot-send-btn:focus-visible,
.chatbot-send-btn.is-focus {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.chatbot-send-btn:active,
.chatbot-send-btn.is-active {
  transform: translateY(1px);
}

.chatbot-send-btn:disabled,
.chatbot-send-btn.is-disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
}

.chatbot-send-btn[data-state="loading"],
.chatbot-send-btn.is-loading {
  opacity: 0.7;
  cursor: wait;
  pointer-events: none;
}

.chatbot-send-btn[data-state="error"],
.chatbot-send-btn.is-error {
  background: var(--color-accent-2);
}

.chatbot-send-btn[data-state="success"],
.chatbot-send-btn.is-success {
  background: var(--color-accent);
}

.chatbot-send-btn svg {
  width: 1rem;
  height: 1rem;
}

/* Typing */
.typing-indicator .message-content {
  display: flex;
  gap: 0.3rem;
  padding: 0.75rem 1rem;
  align-items: center;
}

.typing-indicator .message-content span {
  width: 0.375rem;
  height: 0.375rem;
  border-radius: 50%;
  background: var(--color-accent);
  opacity: 0.55;
  animation: chatbot-typing 1.4s var(--ease-in-out) infinite;
}

.typing-indicator .message-content span:nth-child(2) {
  animation-delay: 0.18s;
}

.typing-indicator .message-content span:nth-child(3) {
  animation-delay: 0.36s;
}

@keyframes chatbot-typing {
  0%, 60%, 100% {
    transform: translateY(0);
    opacity: 0.4;
  }
  30% {
    transform: translateY(-5px);
    opacity: 1;
  }
}

.fade-in-message {
  animation: chatbot-fade-in var(--dur-short) var(--ease-out);
}

@keyframes chatbot-fade-in {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .chatbot-toggle,
  .chatbot-window,
  .chatbot-send-btn,
  .chatbot-input,
  .chatbot-mobile-close {
    transition: opacity 150ms linear;
  }

  .chatbot-toggle:hover,
  .chatbot-toggle.is-hover,
  .chatbot-send-btn:hover,
  .chatbot-send-btn.is-hover {
    transform: none;
  }

  .fade-in-message {
    animation: none;
  }

  .typing-indicator .message-content span {
    animation: none;
    opacity: 0.7;
  }
}

/* Mobile */
@media (max-width: 640px) {
  .chatbot-widget {
    bottom: var(--space-md);
    right: var(--space-md);
  }

  .chatbot-window {
    width: calc(100vw - 1.5rem);
    height: calc(100dvh - 6.5rem);
    max-height: none;
    right: -0.25rem;
  }

  .chatbot-header {
    padding-right: 2.75rem;
  }

  .chatbot-status {
    display: none;
  }

  .chatbot-mobile-close {
    display: flex;
  }

}