/* =========================================================
   Kaidon Labs — site-demo.css
   Styles for /site-demo (landing page) and /site-demo/preview
   (screenshot backdrop + floating chat widget). Extends the
   design tokens already defined in styles.css. This is the
   first place in the codebase using position: fixed for a
   corner-anchored widget — z-index 1000 is this file's own
   scale, not shared with anything else yet.
   ========================================================= */

/* ---------- Landing page hero ---------- */
.demo-hero {
  padding: calc(var(--nav-height) + 56px) 0 72px;
  background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
}

.demo-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: start;
}

.demo-hero-content h1 {
  margin: 12px 0 16px;
  font-size: clamp(1.9rem, 4.2vw, 2.7rem);
  color: var(--color-primary);
}

.demo-hero-content h1 em {
  font-style: normal;
  color: var(--color-accent-dark);
}

.demo-hero-content .tagline {
  color: var(--color-text-muted);
  font-size: 1.08rem;
  margin-bottom: 28px;
}

.demo-trust-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.demo-trust-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.demo-trust-list svg {
  flex: none;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  color: var(--color-accent-dark);
}

.demo-trust-list strong {
  color: var(--color-gray-900);
}

.demo-trust-list div {
  color: var(--color-text-muted);
  font-size: 0.98rem;
  line-height: 1.5;
}

.demo-hero-widget {
  width: 100%;
}

.demo-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 32px;
}

.demo-panel-header {
  margin-bottom: 20px;
}

.demo-panel-header h2 {
  margin: 0 0 6px;
  font-size: 1.3rem;
  color: var(--color-primary);
}

.demo-panel-header p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.demo-panel .form-optional {
  color: var(--color-text-muted);
  font-weight: 400;
}

@media (min-width: 900px) {
  .demo-hero-grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 56px;
  }
}

/* ---------- How it works ---------- */
.demo-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.demo-step {
  text-align: center;
}

.demo-step-number {
  width: 40px;
  height: 40px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-text-inverse);
  font-weight: 700;
  font-size: 1.05rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.demo-step h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.demo-step p {
  color: var(--color-text-muted);
  font-size: 0.97rem;
  margin: 0;
}

.demo-build-grid .service-card:hover {
  transform: none;
}

@media (min-width: 640px) {
  .demo-steps {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ---------- FAQ ---------- */
.demo-faq-list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.demo-faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 4px 20px;
  background: var(--color-surface);
}

.demo-faq-item summary {
  cursor: pointer;
  padding: 16px 0;
  font-weight: 600;
  color: var(--color-gray-900);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.demo-faq-item summary::-webkit-details-marker {
  display: none;
}

.demo-faq-item summary::after {
  content: "+";
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--color-accent-dark);
  margin-left: 12px;
}

.demo-faq-item[open] summary::after {
  content: "\2212";
}

.demo-faq-item p {
  margin: 0 0 18px;
  color: var(--color-text-muted);
  font-size: 0.97rem;
  line-height: 1.6;
}

.demo-final-cta {
  text-align: center;
  margin-top: 48px;
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1.05rem;
}

@media (max-width: 640px) {
  .demo-panel {
    padding: 20px;
  }
}

/* =========================================================
   Preview page (/site-demo/preview) — screenshot backdrop +
   floating chat widget over it. No site nav/footer on this
   page on purpose: the point is that it reads as the target
   site's own homepage, not a Kaidon Labs page.
   ========================================================= */

.demo-preview-body {
  background: var(--color-gray-900);
  min-height: 100vh;
}

/* ---------- Disclaimer badge ---------- */
.demo-disclaimer-badge {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1001; /* above the widget (1000) — the disclaimer must never be covered */
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 10px 16px;
  background: var(--color-primary);
  color: var(--color-text-inverse);
  font-size: 0.85rem;
  text-align: center;
}

.demo-disclaimer-badge strong {
  color: var(--color-text-inverse);
}

.demo-disclaimer-link {
  color: var(--color-text-inverse);
  text-decoration: underline;
  white-space: nowrap;
}

/* ---------- Loading state ---------- */
.demo-loading {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  padding: 60px 24px 0; /* top padding clears the fixed disclaimer badge */
  color: var(--color-text-inverse);
  text-align: center;
}

/* `display: flex` above otherwise beats the browser's default
   `[hidden] { display: none }` rule — an author-stylesheet class rule
   always wins over the user-agent stylesheet's [hidden] handling
   regardless of the hidden attribute's actual state. Without this,
   toggling `hidden` via JS silently does nothing and this stays visible
   forever (same pitfall .audit-panel[hidden] guards against in
   audit-chat.css). */
.demo-loading[hidden] {
  display: none;
}

.demo-loading-spinner {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 3px solid rgba(255, 255, 255, 0.25);
  border-top-color: var(--color-accent);
  animation: demo-spin 0.9s linear infinite;
}

@keyframes demo-spin {
  to {
    transform: rotate(360deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .demo-loading-spinner {
    animation: none;
  }
}

/* ---------- Error state ---------- */
.demo-error {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 24px 0;
}

/* Same [hidden]-vs-display:flex specificity fix as .demo-loading above. */
.demo-error[hidden] {
  display: none;
}

.demo-error-card {
  max-width: 420px;
  text-align: center;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 32px;
}

.demo-error-card h2 {
  margin: 0 0 10px;
  color: var(--color-primary);
}

.demo-error-card p {
  color: var(--color-text-muted);
  margin-bottom: 20px;
}

/* ---------- Screenshot backdrop ---------- */
.demo-backdrop-wrap {
  padding-top: 40px; /* clears the fixed disclaimer badge */
  background: var(--color-bg);
}

.demo-backdrop-image {
  display: block;
  width: 100%;
  height: auto;
}

/* ---------- Floating widget ---------- */
/* --demo-widget-accent/--demo-widget-accent-text are set inline on
   #demo-widget by site-demo-preview.js when the target site's homepage has
   a usable <meta name="theme-color"> — falls through to Kaidon Labs'
   defaults below whenever that's absent or too generic to use. */
.demo-widget-launcher {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1000;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  border: none;
  background: var(--demo-widget-accent, var(--color-accent));
  color: var(--demo-widget-accent-text, #06231f);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.demo-widget-launcher svg {
  width: 26px;
  height: 26px;
}

.demo-widget-launcher:hover {
  transform: scale(1.06);
}

.demo-widget-launcher[aria-expanded="true"] {
  display: none;
}

.demo-widget-panel {
  position: fixed;
  bottom: 96px;
  right: 24px;
  z-index: 1000;
  width: min(380px, calc(100vw - 32px));
  max-height: min(560px, calc(100vh - 140px));
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.demo-widget-panel[hidden] {
  display: none;
}

.demo-widget-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: var(--demo-widget-accent, var(--color-primary));
  color: var(--demo-widget-accent-text, var(--color-text-inverse));
  font-weight: 600;
  font-size: 0.95rem;
}

.demo-widget-close {
  background: none;
  border: none;
  color: var(--demo-widget-accent-text, var(--color-text-inverse));
  font-size: 1.3rem;
  line-height: 1;
  cursor: pointer;
  padding: 0 4px;
}

.demo-widget-footer {
  padding: 8px 18px 12px;
  font-size: 0.78rem;
  color: var(--color-text-muted);
  text-align: center;
  border-top: 1px solid var(--color-border);
}

.demo-widget-footer a {
  color: var(--color-accent-dark);
}

/* ---------- Chat mechanics (mirrors ai-audit's chat UI patterns) ---------- */
.demo-widget-panel .chat-messages {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 16px;
  min-height: 240px;
}

.demo-widget-panel .chat-bubble {
  max-width: 85%;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  line-height: 1.45;
  white-space: pre-wrap;
}

.demo-widget-panel .chat-bubble.assistant {
  align-self: flex-start;
  background: var(--color-gray-100);
  color: var(--color-text);
  border-bottom-left-radius: 4px;
}

.demo-widget-panel .chat-bubble.user {
  align-self: flex-end;
  background: var(--demo-widget-accent, var(--color-primary));
  color: var(--demo-widget-accent-text, var(--color-text-inverse));
  border-bottom-right-radius: 4px;
}

.demo-widget-panel .chat-bubble.typing {
  align-self: flex-start;
  background: var(--color-gray-100);
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 12px 14px;
}

.demo-widget-panel .typing-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-text-muted);
  animation: demo-typing-bounce 1.2s infinite ease-in-out;
}

.demo-widget-panel .typing-dot:nth-child(2) {
  animation-delay: 0.15s;
}

.demo-widget-panel .typing-dot:nth-child(3) {
  animation-delay: 0.3s;
}

@keyframes demo-typing-bounce {
  0%, 60%, 100% {
    transform: translateY(0);
    opacity: 0.5;
  }
  30% {
    transform: translateY(-4px);
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .demo-widget-panel .typing-dot {
    animation: none;
    opacity: 0.7;
  }
}

.demo-widget-panel .chat-input-row {
  display: flex;
  gap: 8px;
  padding: 12px;
  border-top: 1px solid var(--color-border);
}

.demo-widget-panel .chat-input-row input {
  flex: 1;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.9rem;
}

.demo-widget-panel .chat-input-row input:focus {
  outline: 2px solid var(--demo-widget-accent, var(--color-accent));
  outline-offset: 1px;
}

/* ---------- Mobile: bottom sheet instead of a small floating box ---------- */
@media (max-width: 640px) {
  .demo-widget-panel {
    bottom: 0;
    right: 0;
    left: 0;
    width: 100%;
    max-height: 80vh;
    height: 80vh;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  }

  .demo-widget-launcher {
    bottom: 16px;
    right: 16px;
  }
}