/* A2: chatbot DM versus DragonSpire (signature animation, both sites).
   Needs ds.css + components.css (diagram-frame). Markup: a2 figure in the page. JS: assets/js/a2.js.
   Without JS, or with reduced motion, the finished end state of both sides shows, still.
   .a2--calm = slower, no glitch (for light pages and the company site). */

.a2 {
  --a2-k: 1;                 /* time scale */
  --a2-red: #E96259;         /* error marks only; not a part colour */
  --a2-gap: var(--space-4);
  container-type: inline-size;
}
.a2--calm { --a2-k: 1.5; }

/* ---------- layout ---------- */

.a2__stage { display: grid; gap: var(--space-6); }
.a2__side { min-width: 0; }
.a2__side + .a2__side { border-top: 1px solid var(--line); padding-top: var(--space-6); }

@container (min-width: 760px) {
  .a2__stage { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 0; }
  .a2__side { padding-inline: var(--space-6); }
  .a2__side:first-child { padding-left: 0; }
  .a2__side:last-child { padding-right: 0; }
  .a2__side + .a2__side { border-top: 0; padding-top: 0; border-left: 1px solid var(--line); }
}

.a2__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2) var(--space-4);
  padding-bottom: var(--space-3);
  margin-bottom: var(--space-5);
  border-bottom: 1px solid var(--line);
}
.a2__title { font-family: var(--font-display); font-weight: 600; font-size: 1.625rem; line-height: 1.1; margin: 0; }
.a2__side--bot .a2__title { color: var(--muted); }
.a2__side--ds .a2__title { color: var(--gold); }
.a2__head .label { margin: 0; }

.a2-type { display: inline-block; max-width: 100%; }
@container (max-width: 480px) { .a2 .a2-input { font-size: 0.8125rem; } }

.a2-who {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 2px;
}

/* ---------- left: the chat log (intentionally the bad example) ---------- */

.a2-chat {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-3);
  font-size: 0.9375rem;
  line-height: 1.5;
}
.a2:not(.a2--calm) .a2-chat {
  background-image: repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.025) 0 1px, transparent 1px 3px);
}
.a2-msg { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--space-2); }
@container (min-width: 1000px) {
  .a2-msg { grid-template-columns: minmax(0, 1fr) 8.75rem; gap: var(--space-4); align-items: center; }
}
.a2-bubble {
  background: color-mix(in srgb, var(--muted) 9%, var(--bg));
  border: 1px solid var(--line);
  border-radius: 12px 12px 12px 3px;
  padding: 0.5em 0.85em 0.6em;
  color: var(--muted);
  max-width: 34rem;
  min-width: 0;
}
.a2-msg--player .a2-bubble {
  background: color-mix(in srgb, var(--muted) 16%, var(--bg));
  border-radius: 12px 12px 3px 12px;
  color: color-mix(in srgb, var(--text) 70%, var(--muted));
}
.a2-msg--old .a2-bubble { opacity: 0.95; }

.a2-err {
  color: color-mix(in srgb, var(--text) 80%, var(--muted));
  text-decoration: underline wavy var(--a2-red);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}
.a2-err--soft { text-decoration-style: dotted; }
.a2-strike { position: relative; white-space: nowrap; }
.a2-strike::after {
  content: "";
  position: absolute;
  left: -2px;
  right: -2px;
  top: 55%;
  height: 1.5px;
  background: var(--a2-red);
  transform-origin: left center;
}
.a2-ins { display: inline-block; color: var(--a2-red); font-family: var(--font-mono); font-size: 0.8em; vertical-align: 0.35em; margin-left: 0.15em; }

.a2-note {
  margin: 0;
  justify-self: start;
  padding: 0.1em 0 0.1em 0.6em;
  border-left: var(--hair) solid var(--a2-red);
  color: var(--a2-red);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  line-height: 1.35;
  text-transform: uppercase;
}

/* ---------- right: the flow, in brand colours ---------- */

.a2-flow { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--a2-gap); }
.a2-flow > li { position: relative; padding-left: 28px; min-width: 0; --part: var(--players); }
.a2-flow > li.p-cory { --part: var(--gold); }
.a2-flow > li.p-dee { --part: var(--teal); }
.a2-flow > li.p-fgu { --part: var(--ember); }
.a2-flow > li.p-cm { --part: var(--slate); }
/* connector: from this dot down to the next dot */
.a2-flow > li:not(:last-child)::before {
  content: "";
  position: absolute;
  left: 5.25px;
  top: 28px;
  bottom: calc(-1 * var(--a2-gap) - 16px);
  width: 1.5px;
  background: color-mix(in srgb, var(--gold) 55%, transparent);
  transform-origin: top center;
}
/* dot */
.a2-flow > li::after {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: var(--hair) solid var(--part);
  background: var(--bg);
  box-shadow: 0 0 8px color-mix(in srgb, var(--part) 60%, transparent);
}

.a2-input {
  border: 1px solid var(--line);
  border-left: 3px solid var(--players);
  border-radius: var(--radius);
  padding: 0.5em 0.85em 0.6em;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--text);
}

.a2-node {
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--part);
  border-radius: var(--radius);
  padding: var(--space-3) var(--space-4);
  display: grid;
  gap: var(--space-1);
}
.a2-node__head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.15em 0.75em; margin: 0; }
.a2-node__name { font-family: var(--font-display); font-weight: 600; font-size: 1.25rem; line-height: 1.15; color: var(--text); }
.a2-node__role { font-family: var(--font-mono); font-size: 0.6875rem; font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase; color: var(--part); }
.a2-line { margin: 0; font-family: var(--font-mono); font-size: 0.875rem; line-height: 1.5; color: var(--text); max-width: none; }
.a2-line--muted { color: var(--muted); }
.a2-line b, .a2-receipt b { font-weight: 500; color: var(--gold); }
.a2-tag {
  display: inline-block;
  padding: 0 0.45em;
  border: 1px solid var(--ember);
  border-radius: 3px;
  color: var(--ember);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  line-height: 1.6;
  white-space: nowrap;
  vertical-align: 0.1em;
}

.a2-hp { display: flex; flex-wrap: wrap; align-items: center; gap: 0.25em var(--space-3); }
.a2-hp__bar { flex: 1 1 80px; max-width: 160px; height: 7px; border: 1px solid var(--line); border-radius: 4px; overflow: hidden; background: var(--bg); }
.a2-hp__fill { display: block; width: 25%; height: 100%; background: var(--ember); }

.a2-receipt {
  position: relative;
  max-width: 24rem;
  padding: var(--space-3) var(--space-4);
  background: var(--panel);
  border: 1px dashed color-mix(in srgb, var(--ember) 70%, transparent);
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.55;
}
.a2-receipt__head { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); margin: 0 0 var(--space-2); font-size: 0.6875rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ember); }
.a2-receipt dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 0 var(--space-3); }
.a2-receipt dt { color: var(--muted); }
.a2-receipt dd { margin: 0; color: var(--text); }
.a2-stamp {
  flex-shrink: 0;
  padding: 0.2em 0.5em;
  border: 2px solid var(--gold);
  border-radius: 3px;
  color: var(--gold);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  line-height: 1.3;
  rotate: -9deg;
}

.a2-loot { display: flex; align-items: stretch; gap: var(--space-3); }
.a2-claim {
  flex: 0 1 auto;
  min-width: 0;
  border: 1px dashed var(--players);
  border-radius: var(--radius);
  padding: 0.45em 0.8em 0.5em;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--text);
}
.a2-wall {
  flex: 0 0 10px;
  border-radius: 2px;
  border: var(--hair) solid var(--gold);
  background: repeating-linear-gradient(135deg, var(--gold) 0 2px, transparent 2px 6px);
}
.a2-deny { margin: var(--space-2) 0 0; font-family: var(--font-mono); font-size: 0.875rem; color: var(--text); max-width: none; }
.a2-deny strong { font-weight: 500; color: var(--gold); }

.a2-voice { display: grid; gap: var(--space-2); }
.a2-ribbon {
  margin: 0;
  max-width: none;
  padding: 0.65em 1.75em 0.7em;
  background: color-mix(in srgb, var(--teal) 15%, var(--bg));
  border-block: var(--hair) solid var(--teal);
  clip-path: polygon(0 0, 100% 0, calc(100% - 14px) 50%, 100% 100%, 0 100%, 14px 50%);
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 500;
  font-size: 1.3rem;
  line-height: 1.3;
  color: var(--text);
  transform-origin: left center;
}
.a2-ribbon__text { display: block; }

/* ---------- caption and replay ---------- */

.a2__foot {
  margin-top: var(--space-6);
  padding-top: var(--space-5);
  border-top: 1px solid var(--line);
  display: grid;
  justify-items: center;
  gap: var(--space-4);
  text-align: center;
}
.a2__caption { margin: 0; max-width: none; font-family: var(--font-display); font-weight: 600; font-size: var(--step-h3); line-height: 1.2; color: var(--text); text-wrap: balance; }
.a2__caption em { font-style: normal; color: var(--gold); }
.a2-replay { min-height: 44px; padding-block: 0.5em; font-size: 0.9375rem; visibility: hidden; }
.a2:not(.a2--armed) .a2-replay { display: none; }
.a2--armed .a2-scope.is-done .a2-replay { visibility: visible; }

/* ---------- motion (only when a2.js arms the module) ---------- */

.a2-step { --a2-anim: a2-in; --a2-dur: 0.6; --a2-ease: var(--ease); }
.a2-step.a2-type { --a2-anim: a2-type; --a2-dur: 1.2; --a2-ease: steps(29, end); }
.a2-step.a2-glitchin { --a2-anim: a2-glitchin; --a2-dur: 0.7; }
.a2-step.a2-note { --a2-anim: a2-flicker; --a2-dur: 0.7; }
.a2-step.a2-ins { --a2-anim: a2-flicker; --a2-dur: 0.5; }
.a2-step.a2-hp__fill { --a2-anim: a2-hp; --a2-dur: 1.1; }
.a2-step.a2-receipt { --a2-anim: a2-stamp; --a2-dur: 0.55; --a2-ease: cubic-bezier(0.2, 0.9, 0.3, 1.2); }
.a2-step.a2-stamp { --a2-anim: a2-stamp-mark; --a2-dur: 0.45; --a2-ease: cubic-bezier(0.2, 0.9, 0.3, 1.2); }
.a2-step.a2-claim { --a2-anim: a2-slam; --a2-dur: 0.9; }
.a2-step.a2-wall { --a2-anim: a2-wall; --a2-dur: 1.1; }
.a2-step.a2-ribbon { --a2-anim: a2-unfurl; --a2-dur: 0.6; }
.a2-step.a2__caption { --a2-anim: a2-in; --a2-dur: 0.9; }

.a2--calm .a2-step.a2-glitchin,
.a2--calm .a2-step.a2-note,
.a2--calm .a2-step.a2-ins { --a2-anim: a2-in; }
.a2--calm .a2-step.a2-claim { --a2-anim: a2-in; }

.a2--armed .a2-scope:not(.is-playing) .a2-step { opacity: 0; }
.a2--armed .a2-scope:not(.is-playing) .a2-strike::after { transform: scaleX(0); }
.a2--armed .a2-scope:not(.is-playing) .a2-err { text-decoration-color: transparent; }
.a2--armed .a2-scope:not(.is-playing) .a2-flow > li::before { transform: scaleY(0); }
.a2--armed .a2-scope:not(.is-playing) .a2-flow > li::after { opacity: 0; }

.a2--armed .a2-scope.is-playing .a2-step {
  animation-name: var(--a2-anim);
  animation-duration: calc(var(--a2-dur) * var(--a2-k) * 1s);
  animation-delay: calc(var(--t, 0) * var(--a2-k) * 1s);
  animation-timing-function: var(--a2-ease);
  animation-fill-mode: both;
}
.a2--armed .a2-scope.is-playing .a2-strike::after {
  animation: a2-strike calc(0.45 * var(--a2-k) * 1s) var(--ease) calc(var(--t, 0) * var(--a2-k) * 1s) both;
}
.a2--armed .a2-scope.is-playing .a2-err {
  animation: a2-err calc(0.4 * var(--a2-k) * 1s) linear calc(var(--t, 0) * var(--a2-k) * 1s) both;
}
.a2--armed .a2-scope.is-playing .a2-flow > li::before {
  animation: a2-draw calc(0.5 * var(--a2-k) * 1s) var(--ease) calc((var(--tn, 0) - 0.5) * var(--a2-k) * 1s) both;
}
.a2--armed .a2-scope.is-playing .a2-flow > li::after {
  animation: a2-pop calc(0.45 * var(--a2-k) * 1s) var(--ease) calc(var(--t, 0) * var(--a2-k) * 1s) both;
}
/* the chat log twitches while it plays (flashy only) */
.a2--armed:not(.a2--calm) .a2-scope.is-playing:not(.is-done) .a2-chat {
  animation: a2-jitter 2.6s steps(1, end) 1.5s infinite;
}

@keyframes a2-in { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
@keyframes a2-type { from { clip-path: inset(0 100% 0 0); } to { clip-path: inset(0 0 0 0); } }
@keyframes a2-glitchin {
  0%   { opacity: 0; transform: translateX(-5px); text-shadow: 2px 0 rgba(229, 83, 75, 0.75), -2px 0 rgba(95, 211, 230, 0.75); }
  25%  { opacity: 1; transform: translateX(4px); }
  40%  { opacity: 0.3; transform: translateX(-2px); }
  60%  { opacity: 1; transform: none; text-shadow: 1px 0 rgba(229, 83, 75, 0.6), -1px 0 rgba(95, 211, 230, 0.6); }
  100% { opacity: 1; transform: none; text-shadow: none; }
}
@keyframes a2-flicker {
  0% { opacity: 0; } 20% { opacity: 1; } 32% { opacity: 0.15; } 48% { opacity: 1; } 60% { opacity: 0.5; } 100% { opacity: 1; }
}
@keyframes a2-strike { from { transform: scaleX(0); } to { transform: scaleX(1); } }
@keyframes a2-err { from { text-decoration-color: transparent; } to { text-decoration-color: var(--a2-red); } }
@keyframes a2-draw { from { transform: scaleY(0); } to { transform: scaleY(1); } }
@keyframes a2-pop { 0% { opacity: 0; transform: scale(0); } 70% { opacity: 1; transform: scale(1.35); } 100% { opacity: 1; transform: scale(1); } }
@keyframes a2-hp { from { width: 100%; } to { width: 25%; } }
@keyframes a2-stamp { 0% { opacity: 0; transform: scale(1.3) rotate(-3deg); } 60% { opacity: 1; transform: scale(0.97) rotate(0); } 100% { opacity: 1; transform: none; } }
@keyframes a2-stamp-mark { 0% { opacity: 0; transform: scale(2.2); } 70% { opacity: 1; transform: scale(0.92); } 100% { opacity: 1; transform: none; } }
@keyframes a2-slam {
  0%   { opacity: 0; transform: translateX(-28px); }
  20%  { opacity: 1; }
  50%  { transform: translateX(12px); }
  66%  { transform: translateX(-5px); }
  82%  { transform: translateX(2px); }
  100% { opacity: 1; transform: none; }
}
@keyframes a2-wall {
  0%   { opacity: 0; }
  30%  { opacity: 1; box-shadow: none; }
  52%  { box-shadow: 0 0 0 4px color-mix(in srgb, var(--gold) 35%, transparent), 0 0 18px var(--gold); }
  100% { opacity: 1; box-shadow: none; }
}
@keyframes a2-unfurl { from { opacity: 0.4; transform: scaleX(0); } to { opacity: 1; transform: scaleX(1); } }
@keyframes a2-jitter {
  0%, 84%, 100% { transform: none; filter: none; }
  86% { transform: translateX(-2px); filter: drop-shadow(2px 0 rgba(229, 83, 75, 0.45)) drop-shadow(-2px 0 rgba(95, 211, 230, 0.45)); }
  89% { transform: translateX(2px) skewX(-1.5deg); }
  92% { transform: translateX(-1px); filter: none; }
  95% { transform: none; }
}

/* Reduced motion: both finished end states, still. */
@media (prefers-reduced-motion: reduce) {
  .a2 .a2-step, .a2 .a2-chat { opacity: 1 !important; transform: none !important; clip-path: none !important; filter: none !important; animation: none !important; }
  .a2 .a2-ribbon { clip-path: polygon(0 0, 100% 0, calc(100% - 14px) 50%, 100% 100%, 0 100%, 14px 50%) !important; }
  .a2 .a2-hp__fill { width: 25% !important; }
  .a2 .a2-strike::after, .a2 .a2-flow > li::before, .a2 .a2-flow > li::after { transform: none !important; opacity: 1 !important; animation: none !important; }
  .a2 .a2-err { text-decoration-color: var(--a2-red) !important; animation: none !important; }
  .a2 .a2-replay { display: none !important; }
}