/* ============================================================
   MURMUR · The Without / With Murmur demonstration
   Shared by the Home (Vallier) and Product (Anvil) pages.
   The aluminium enclosure comes from .hardware in css/murmur.css.
   ============================================================ */

/* Aluminium enclosure. brand-dna 12: reserved for key moments. */

.stage {
  margin-top: clamp(3rem, 7vh, 5rem);
  padding: clamp(0.75rem, 1.4vw, 1.15rem);
}

.stage__toggle-wrap { display: flex; justify-content: center; }

.stage__toggle {
  position: relative;
  z-index: 3;
  margin: 0 auto clamp(0.75rem, 1.4vw, 1.15rem);
  display: inline-grid;
  grid-auto-flow: column;
  gap: 2px;
  padding: 3px;
  border-radius: var(--r-pill);
  background: var(--grey);
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.07);
}

.stage__toggle button {
  min-height: 38px;
  padding-inline: clamp(0.9rem, 2vw, 1.5rem);
  border-radius: var(--r-pill);
  font-family: var(--font-compact);
  font-size: var(--t-small);
  font-weight: 500;
  letter-spacing: -0.004em;
  color: var(--ink-52);
  transition:
    background-color var(--dur) var(--ease),
    color var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}

.stage__toggle button[aria-pressed="true"] {
  background: var(--blue);
  color: var(--white);
  box-shadow: none;
}

.stage__grid {
  position: relative;
  border-radius: var(--r-inner);
  background: var(--grey);
  padding: clamp(0.85rem, 1.6vw, 1.35rem);
  display: grid;
  grid-template-columns: minmax(0, 1.32fr) minmax(0, 1fr);
  gap: clamp(0.85rem, 1.6vw, 1.35rem);
  align-items: start;
}

/* ---------- The buyer conversation ---------- */

.chat {
  border-radius: calc(var(--r-inner) - 4px);
  background: var(--white);
  overflow: hidden;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.chat__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1.15rem;
  border-bottom: 1px solid var(--ink-08);
}

.chat__agent {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-size: var(--t-small);
  font-weight: 500;
}

.chat__agent img { width: 17px; height: 17px; border-radius: 4px; }

.chat__meta {
  font-family: var(--font-compact);
  font-size: var(--t-micro);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.chat__body { padding: clamp(1.15rem, 2.4vw, 1.9rem); }

.chat__prompt {
  padding: 0.95rem 1.15rem;
  border-radius: 14px;
  background: var(--grey);
  font-size: var(--t-body);
  line-height: 1.5;
  color: var(--ink-100);
}

.chat__prompt mark {
  background: none;
  color: inherit;
  box-shadow: inset 0 -0.42em 0 var(--sky);
}

.chat__reply { margin-top: 1.35rem; }

.chat__reply-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-compact);
  font-size: var(--t-micro);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.chat__reply-label img { width: 13px; height: 13px; border-radius: 3px; opacity: 0.7; }

.chat__answers { position: relative; margin-top: 0.9rem; }

.chat__answer {
  display: grid;
  gap: 0.85rem;
  line-height: 1.56;
  color: var(--ink-70);
}

.chat__answer strong { color: var(--black); font-weight: 600; }
.chat__answer[hidden] { display: none; }

/* Phrase marks. Same colour as the source in the Murmur panel. */

.chat__answer mark {
  background: none;
  color: var(--ink-100);
  box-shadow: inset 0 -0.42em 0 transparent;
  transition: box-shadow 700ms var(--ease);
}

[data-state="with"] .chat__answer mark { box-shadow: inset 0 -0.42em 0 var(--mark-colour, transparent); }

mark.m-brand { --mark-colour: var(--orange); }
mark.m-proof { --mark-colour: var(--yellow); }
mark.m-context { --mark-colour: var(--sky); }

/* ---------- The Murmur panel, invisible to the buyer ---------- */

.panel {
  border-radius: calc(var(--r-inner) - 4px);
  background: var(--white);
  padding: clamp(1rem, 2vw, 1.5rem);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  opacity: 0.48;
  filter: saturate(0);
  transition:
    opacity var(--dur-long) var(--ease),
    filter var(--dur-long) var(--ease);
}

[data-state="with"] .panel { opacity: 1; filter: none; }

.panel__head {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--ink-08);
}

.panel__head img { width: 22px; height: 22px; object-fit: contain; }
.panel__head strong { display: block; font-size: var(--t-small); font-weight: 600; }

.panel__head small {
  display: block;
  font-family: var(--font-compact);
  font-size: var(--t-micro);
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.panel__head small span {
  display: block;
  white-space: nowrap;
}

.panel__steps { margin-top: 1.1rem; display: grid; gap: 1.1rem; }

.panel__step {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 0.75rem;
  opacity: 0.56;
  transform: none;
  transition:
    opacity 600ms var(--ease),
    transform 600ms var(--ease);
}

[data-state="with"] .panel__step { opacity: 1; transform: none; }
[data-state="with"] .panel__step:nth-child(1) { transition-delay: 120ms; }
[data-state="with"] .panel__step:nth-child(2) { transition-delay: 380ms; }
[data-state="with"] .panel__step:nth-child(3) { transition-delay: 900ms; }

.panel__num {
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--ink-14);
  font-family: var(--font-compact);
  font-size: var(--t-micro);
  font-weight: 600;
  color: var(--ink-52);
}

.panel__title {
  font-family: var(--font-compact);
  font-size: var(--t-micro);
  font-weight: 600;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.panel__rows { margin-top: 0.6rem; display: grid; gap: 0.4rem; }

.panel__row {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 0.65rem;
  align-items: baseline;
  font-size: 0.8125rem;
  line-height: 1.38;
}

.panel__row dt {
  font-family: var(--font-compact);
  font-size: var(--t-micro);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.panel__row dd { margin: 0; color: var(--ink-100); }

.panel__row--tint dd {
  padding: 0.2rem 0.5rem;
  border-radius: 5px;
  background: var(--row-tint, transparent);
}

.panel__row--context { --row-tint: color-mix(in srgb, var(--sky) 46%, transparent); }
.panel__row--brand { --row-tint: color-mix(in srgb, var(--orange) 40%, transparent); }
.panel__row--proof { --row-tint: color-mix(in srgb, var(--yellow) 52%, transparent); }

.panel__delivered {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
  padding: 0.28rem 0.6rem;
  border-radius: var(--r-pill);
  background: color-mix(in srgb, var(--green) 40%, transparent);
  font-family: var(--font-compact);
  font-size: var(--t-micro);
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.panel__note {
  margin-top: 1.15rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--ink-08);
  font-size: 0.8125rem;
  color: var(--ink-52);
}

.demo__disclaimer {
  margin-top: 1.15rem;
  text-align: right;
  font-family: var(--font-compact);
  font-size: var(--t-micro);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ---------- Responsive ---------- */

@media (max-width: 1080px) {
  .stage__grid { grid-template-columns: 1fr; }
}

@media (max-width: 860px) {
  .panel__row { grid-template-columns: 80px 1fr; }
  .demo__disclaimer { text-align: left; }
}

@media (max-width: 520px) {
  .stage__toggle button { padding-inline: 0.85rem; font-size: 0.8125rem; }
  .panel__row { grid-template-columns: 1fr; gap: 0.15rem; }
}