/* ═══ Info Modal & Help Buttons ═══ */

/* "?" button — inline, small, unobtrusive */
.info-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 1px solid var(--border-secondary);
  background: var(--bg-primary);
  color: var(--text-tertiary);
  font-size: 10px;
  font-weight: 600;
  font-family: var(--font-sans);
  cursor: pointer;
  padding: 0;
  margin-left: 4px;
  vertical-align: middle;
  line-height: 1;
  transition: all 0.15s;
  flex-shrink: 0;
}

.info-btn:hover {
  border-color: var(--teal);
  color: var(--teal);
  background: var(--teal-light);
}

/* Overlay */
.info-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1100;
}

.info-overlay.open {
  display: flex;
  align-items: center;
  justify-content: center;
}

.info-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

/* Modal */
.info-modal {
  position: relative;
  width: 520px;
  max-width: calc(100vw - 32px);
  max-height: calc(100vh - 64px);
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-tertiary);
  box-shadow: 0 20px 60px rgba(0,0,0,0.15);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  animation: infoSlideIn 0.2s ease-out;
}

@keyframes infoSlideIn {
  from { opacity: 0; transform: translateY(12px) scale(0.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* Header */
.info-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-tertiary);
  flex-shrink: 0;
}

.info-header-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  flex: 1;
}

.info-close-btn {
  width: 28px;
  height: 28px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-tertiary);
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.info-close-btn:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

/* Body */
.info-body {
  padding: 20px;
  overflow-y: auto;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.info-body p {
  margin: 0 0 12px;
}

.info-body p:last-child {
  margin-bottom: 0;
}

.info-body ul, .info-body ol {
  margin: 0 0 12px;
  padding-left: 20px;
}

.info-body li {
  margin-bottom: 6px;
}

.info-body strong {
  color: var(--text-primary);
  font-weight: 600;
}

.info-body code {
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--bg-tertiary);
  color: var(--teal);
}

/* Chat area */
.info-chat {
  border-top: 1px solid var(--border-tertiary);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.info-chat-messages {
  max-height: 180px;
  overflow-y: auto;
  padding: 10px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.info-chat-messages:empty {
  display: none;
}

.info-chat-msg {
  font-size: 13px;
  line-height: 1.6;
  padding: 8px 12px;
  border-radius: 8px;
  max-width: 90%;
}

.info-chat-msg.user {
  align-self: flex-end;
  background: var(--teal);
  color: #fff;
  border-bottom-right-radius: 2px;
}

.info-chat-msg.assistant {
  align-self: flex-start;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-bottom-left-radius: 2px;
}

.info-chat-msg.loading {
  color: var(--text-tertiary);
  font-style: italic;
}

.info-chat-input-row {
  display: flex;
  gap: 8px;
  padding: 12px 20px;
}

.info-chat-input {
  flex: 1;
  padding: 8px 12px;
  border: 1px solid var(--border-tertiary);
  border-radius: var(--radius-md);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 13px;
  font-family: var(--font-sans);
  outline: none;
  transition: border-color 0.15s;
}

.info-chat-input:focus {
  border-color: var(--teal);
}

.info-chat-input::placeholder {
  color: var(--text-tertiary);
}

.info-chat-send {
  padding: 8px 16px;
  border: none;
  border-radius: var(--radius-md);
  background: var(--teal);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: background 0.15s;
  flex-shrink: 0;
}

.info-chat-send:hover {
  background: #0b8a7d;
}

.info-chat-send:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Responsive */
@media (max-width: 560px) {
  .info-modal {
    width: 100%;
    max-width: none;
    margin: 16px;
  }
}