/* Botão fixo + modal de instruções de instalação (páginas demo). */

.pk-install-guide-fab {
  position: fixed;
  right: 1rem;
  top: 50%;
  z-index: 9000;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  padding: 0;
  border: 0;
  border-radius: 0.875rem;
  background: var(--page-surface, #fff);
  color: var(--primary-color, #18181b);
  box-shadow:
    0 4px 14px rgba(0, 0, 0, 0.12),
    0 0 0 1px color-mix(in srgb, var(--page-text, #000) 8%, transparent);
  cursor: pointer;
  transform: translateY(-50%);
  transition: transform 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease;
}

.pk-install-guide-fab:hover {
  transform: translateY(-50%) scale(1.05);
  box-shadow:
    0 8px 24px rgba(0, 0, 0, 0.16),
    0 0 0 1px color-mix(in srgb, var(--primary-color, #18181b) 25%, transparent);
}

.pk-install-guide-fab:focus-visible {
  outline: 2px solid var(--primary-color, #18181b);
  outline-offset: 2px;
}

.pk-install-guide-fab svg {
  width: 1.5rem;
  height: 1.5rem;
}

.pk-install-guide-overlay {
  position: fixed;
  inset: 0;
  z-index: 9100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background: rgba(24, 24, 27, 0.45);
  backdrop-filter: blur(4px);
}

.pk-install-guide-overlay[hidden] {
  display: none;
}

.pk-install-guide-modal {
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 40rem;
  max-height: calc(100dvh - 2rem);
  border-radius: 1rem;
  background: var(--page-surface, #fff);
  color: var(--page-text, #18181b);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.2);
  overflow: hidden;
}

.pk-install-guide-modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid color-mix(in srgb, var(--page-text, #000) 10%, transparent);
}

.pk-install-guide-modal__header h2 {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.pk-install-guide-modal__close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border: 0;
  border-radius: 9999px;
  background: transparent;
  color: var(--page-text-muted, #71717a);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  transition: opacity 0.15s;
}

.pk-install-guide-modal__close:hover {
  opacity: 0.7;
}

.pk-install-guide-modal__body {
  overflow-y: auto;
  padding: 1.25rem 1.5rem 1.5rem;
  color: var(--page-text-muted, #444);
  font-size: 0.92rem;
  line-height: 1.6;
  text-align: left;
}

.pk-install-guide-modal__body p {
  margin: 0 0 0.75rem;
}

.pk-install-guide-modal__body ol {
  padding-left: 1.2rem;
  margin: 0.5rem 0;
}

.pk-install-guide-modal__body li {
  margin-bottom: 0.75rem;
}

.pk-install-guide-modal__body pre {
  position: relative;
  background: var(--page-code-bg, #1e1e2e);
  color: #e4e4e7;
  border-radius: 8px;
  padding: 1rem;
  overflow-x: auto;
  font-size: 0.82rem;
  line-height: 1.5;
  margin: 0.5rem 0 0;
}

.pk-install-guide-modal__body code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.pk-install-guide-modal__body li > code {
  background: color-mix(in srgb, var(--page-text, #000) 8%, transparent);
  border-radius: 4px;
  padding: 0.1rem 0.35rem;
  font-size: 0.85em;
}

.pk-install-guide-copy-btn {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  background: rgba(255, 255, 255, 0.08);
  color: #e4e4e7;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 6px;
  padding: 0.25rem 0.6rem;
  font-size: 0.72rem;
  font-family: system-ui, -apple-system, sans-serif;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.15s, background 0.15s;
}

.pk-install-guide-modal__body pre:hover .pk-install-guide-copy-btn,
.pk-install-guide-copy-btn:focus-visible {
  opacity: 1;
}

.pk-install-guide-copy-btn:hover {
  background: rgba(255, 255, 255, 0.18);
}

.pk-install-guide-copy-btn.copied {
  opacity: 1;
  background: #16a34a;
  border-color: #16a34a;
  color: #fff;
}

@media (max-width: 480px) {
  .pk-install-guide-fab {
    right: 0.75rem;
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 0.75rem;
  }

  .pk-install-guide-overlay {
    padding: 0.5rem;
  }

  .pk-install-guide-modal__header,
  .pk-install-guide-modal__body {
    padding-inline: 1rem;
  }
}