/* Scripted on-site chat demo — product-dark, not AI glow */

.demo-section {
  padding: 72px 0 80px;
  border-bottom: 1px solid var(--border);
}

.demo-section--lead {
  padding: 8px 0 64px;
  border-bottom: 1px solid var(--border);
}

.page-hero--compact {
  padding: 48px 0 28px;
}

.page-hero--compact h1 {
  max-width: 18ch;
}

.page-hero--compact .lead {
  max-width: 48ch;
}

.demo-section .section-header {
  margin-bottom: 28px;
}

.demo-root {
  max-width: 1100px;
  margin: 0 auto;
}

.demo-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  gap: 14px;
  align-items: start;
}

.demo-pack-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 18px;
}

.demo-pack-tab {
  appearance: none;
  border: 1px solid var(--border-strong);
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  padding: 9px 14px;
  border-radius: 8px;
  cursor: pointer;
}

.demo-pack-tab.is-active {
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.04);
}

.demo-empty {
  margin: auto;
  padding: 48px 20px;
  text-align: center;
  color: #8b9098;
  font-size: 13.5px;
  line-height: 1.55;
  max-width: 36ch;
}

/* Stack activity rail */
.demo-stack-rail {
  position: sticky;
  top: 88px;
  background: #0c0d0f;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 14px;
  padding: 14px 14px 12px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.28);
}

.demo-stack-kicker {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #8b9098;
  margin-bottom: 8px;
}

.demo-stack-active {
  font-size: 13px;
  font-weight: 600;
  color: #f3f4f5;
  letter-spacing: -0.01em;
  margin-bottom: 4px;
}

.demo-stack-detail {
  font-size: 12px;
  color: #9aa0a6;
  line-height: 1.45;
  margin-bottom: 14px;
  min-height: 2.6em;
}

.demo-stack-steps {
  display: grid;
  gap: 6px;
}

.demo-stack-step {
  display: grid;
  grid-template-columns: 14px 1fr;
  gap: 8px;
  align-items: start;
  padding: 7px 8px;
  border-radius: 8px;
  border: 1px solid transparent;
  opacity: 0.45;
  transition: opacity 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.demo-stack-step.is-done {
  opacity: 0.7;
}

.demo-stack-step.is-active {
  opacity: 1;
  border-color: rgba(214, 196, 138, 0.35);
  background: rgba(214, 196, 138, 0.08);
}

.demo-stack-dot {
  width: 8px;
  height: 8px;
  margin-top: 4px;
  border-radius: 50%;
  background: #3a3d44;
  box-shadow: none;
}

.demo-stack-step.is-active .demo-stack-dot {
  background: #d6c48a;
  box-shadow: 0 0 10px rgba(214, 196, 138, 0.55);
}

.demo-stack-step.is-done .demo-stack-dot {
  background: #6f757e;
}

.demo-stack-step-label {
  font-size: 12px;
  font-weight: 600;
  color: #e8e9eb;
}

.demo-stack-step-detail {
  font-size: 11px;
  color: #8b9098;
  line-height: 1.4;
  margin-top: 1px;
}

.demo-stack-foot {
  margin-top: 12px;
  font-size: 11px;
  color: #6f757e;
  line-height: 1.4;
}

.demo-thinking {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #9aa0a6;
  font-size: 12.5px;
}

.demo-thinking-dots {
  display: inline-flex;
  gap: 4px;
}

.demo-thinking-dots i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #8b9098;
  display: block;
  animation: demo-blink 1s infinite ease-in-out;
}

.demo-thinking-dots i:nth-child(2) {
  animation-delay: 0.15s;
}

.demo-thinking-dots i:nth-child(3) {
  animation-delay: 0.3s;
}

@keyframes demo-blink {
  0%,
  80%,
  100% {
    opacity: 0.25;
    transform: translateY(0);
  }
  40% {
    opacity: 1;
    transform: translateY(-2px);
  }
}

.demo-caret {
  display: inline-block;
  width: 7px;
  height: 1.05em;
  margin-left: 1px;
  vertical-align: text-bottom;
  background: #c4c7cc;
  animation: demo-caret 0.9s step-end infinite;
}

@keyframes demo-caret {
  50% {
    opacity: 0;
  }
}

.demo-composer-input.is-typing {
  border-color: rgba(214, 196, 138, 0.45);
}

.demo-composer-send.is-flash {
  filter: brightness(1.15);
  transform: scale(0.98);
}

.demo-stream {
  white-space: pre-wrap;
}

.demo-shell {
  background: #0c0d0f;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
}

.demo-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 18px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: #101114;
}

.demo-header-kicker {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #9aa0a6;
  margin-bottom: 4px;
}

.demo-header-title {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: #f3f4f5;
  margin: 0;
}

.demo-header-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: flex-end;
  max-width: 420px;
}

.demo-chip {
  display: inline-flex;
  align-items: center;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: #c4c7cc;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  padding: 4px 9px;
}

.demo-chip--demo {
  color: #e8e8ea;
  border-color: rgba(255, 255, 255, 0.18);
}

.demo-chip--warn {
  color: #d6c48a;
  border-color: rgba(214, 196, 138, 0.35);
  background: rgba(214, 196, 138, 0.08);
  text-transform: none;
  letter-spacing: 0;
  font-weight: 500;
  font-size: 11px;
}

.demo-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 14px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: #0e0f12;
}

.demo-pill {
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: transparent;
  color: #b0b4ba;
  font: inherit;
  font-size: 12px;
  font-weight: 500;
  padding: 8px 12px;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.demo-pill:hover {
  color: #f3f4f5;
  border-color: rgba(255, 255, 255, 0.22);
}

.demo-pill.is-active {
  color: #0c0d0f;
  background: #e8e9eb;
  border-color: #e8e9eb;
}

.demo-pill--wall:not(.is-active) {
  border-color: rgba(196, 120, 80, 0.45);
  color: #d4a888;
}

.demo-messages {
  height: min(420px, 55vh);
  overflow-y: auto;
  padding: 20px 16px 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.015), transparent 40%),
    #0a0b0d;
  scroll-behavior: smooth;
}

.demo-msg {
  display: flex;
  width: 100%;
}

.demo-msg--user {
  justify-content: flex-end;
}

.demo-msg--assistant {
  justify-content: flex-start;
}

.demo-bubble {
  max-width: min(560px, 92%);
  border-radius: 14px;
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.demo-msg--user .demo-bubble {
  background: #1c1e24;
  color: #f3f4f5;
  border-bottom-right-radius: 4px;
}

.demo-msg--assistant .demo-bubble {
  background: #121418;
  color: #e6e7ea;
  border-bottom-left-radius: 4px;
}

.demo-bubble--blocked {
  border-color: rgba(196, 120, 80, 0.45);
  background: rgba(196, 120, 80, 0.07);
}

.demo-wall-badge {
  display: inline-flex;
  width: fit-content;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: #f0d2bc;
  background: rgba(180, 90, 50, 0.25);
  border: 1px solid rgba(196, 120, 80, 0.55);
  border-radius: 6px;
  padding: 4px 8px;
  margin-bottom: 10px;
}

.demo-bubble-text p {
  margin: 0 0 10px;
  font-size: 13.5px;
  line-height: 1.55;
  white-space: pre-wrap;
}

.demo-bubble-text p:last-child {
  margin-bottom: 0;
}

.demo-msg-meta {
  margin-top: 10px;
}

.demo-local-pill {
  display: inline-flex;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: #8f9a8c;
  background: rgba(110, 140, 110, 0.1);
  border: 1px solid rgba(110, 140, 110, 0.28);
  border-radius: 999px;
  padding: 3px 8px;
}

.demo-sources {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
}

.demo-source-chip {
  appearance: none;
  text-align: left;
  cursor: pointer;
  max-width: 100%;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 7px 9px;
  color: inherit;
  font: inherit;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.demo-source-chip:hover {
  border-color: rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.05);
}

.demo-source-title {
  display: block;
  font-size: 11.5px;
  font-weight: 600;
  color: #e8e9eb;
  margin-bottom: 2px;
}

.demo-source-meta {
  display: block;
  font-size: 10.5px;
  color: #8b9098;
}

.demo-composer {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  padding: 12px 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: #101114;
}

.demo-composer-input {
  width: 100%;
  font: inherit;
  font-size: 13.5px;
  color: #f3f4f5;
  background: #0a0b0d;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  padding: 11px 12px;
}

.demo-composer-input:focus {
  outline: none;
  border-color: rgba(255, 255, 255, 0.28);
}

.demo-composer-send {
  appearance: none;
  border: none;
  border-radius: 10px;
  padding: 0 16px;
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  color: #0c0d0f;
  background: #e8e9eb;
  cursor: pointer;
}

.demo-composer-send:hover {
  filter: brightness(1.05);
}

.demo-composer-lock {
  margin: 0 14px 10px;
  font-size: 12.5px;
  color: #d6c48a;
  background: rgba(214, 196, 138, 0.08);
  border: 1px solid rgba(214, 196, 138, 0.28);
  border-radius: 8px;
  padding: 8px 10px;
}

.demo-footer-note {
  padding: 0 16px 14px;
  font-size: 11.5px;
  color: #7a7f86;
  line-height: 1.45;
  background: #101114;
}

/* Modal */
.demo-modal[hidden] {
  display: none !important;
}

.demo-modal {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: grid;
  place-items: center;
  padding: 20px;
}

.demo-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
}

.demo-modal-card {
  position: relative;
  z-index: 1;
  width: min(440px, 100%);
  background: #121418;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  padding: 20px 20px 16px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

.demo-modal-close {
  position: absolute;
  top: 10px;
  right: 12px;
  appearance: none;
  border: none;
  background: transparent;
  color: #9aa0a6;
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
}

.demo-modal-kicker {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: #9aa0a6;
  margin-bottom: 8px;
}

.demo-modal-title {
  font-size: 15px;
  font-weight: 600;
  color: #f3f4f5;
  margin: 0 0 6px;
  padding-right: 24px;
}

.demo-modal-meta {
  font-size: 12px;
  color: #8b9098;
  margin-bottom: 12px;
}

.demo-modal-excerpt {
  font-size: 13.5px;
  line-height: 1.55;
  color: #d5d7db;
  margin: 0 0 12px;
}

.demo-modal-disclaimer {
  font-size: 11.5px;
  color: #7a7f86;
  margin: 0;
}

/* Homepage teasers */
.demo-teasers {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  max-width: 900px;
  margin: 40px auto 0;
}

.demo-teaser {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px 22px 20px;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.demo-teaser:hover {
  border-color: rgba(255, 255, 255, 0.18);
  background: var(--surface-hover);
}

.demo-teaser .tag {
  margin-bottom: 10px;
}

.demo-teaser h3 {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.demo-teaser p {
  font-size: 13.5px;
  color: var(--muted);
  line-height: 1.55;
  margin-bottom: 14px;
}

.demo-teaser .teaser-cta {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
}

@media (max-width: 960px) {
  .demo-layout {
    grid-template-columns: 1fr;
  }

  .demo-stack-rail {
    position: static;
    order: -1;
  }
}

@media (max-width: 800px) {
  .demo-teasers {
    grid-template-columns: 1fr;
  }

  .demo-header {
    flex-direction: column;
  }

  .demo-header-chips {
    justify-content: flex-start;
    max-width: none;
  }

  .demo-messages {
    height: min(380px, 50vh);
  }
}