/* SudoChat Engine Room v3 — readable enterprise architecture-map presentation. */

#engine-view {
  --arch-blue: #1768f2;
  --arch-blue-soft: #eaf2ff;
  --arch-line: #262b31;
  --arch-step: #8c9095;
}

#engine-view .top-action,
#engine-view .top-label {
  font-size: clamp(.7rem, .85vw, .8rem);
}

#engine-view .engine-layout {
  width: min(1500px, 97vw);
  grid-template-rows: 82px minmax(0, 1fr) 116px;
  gap: 10px;
}

#engine-view .engine-heading {
  grid-template-columns: minmax(0, 1fr) minmax(360px, .85fr);
  gap: 26px;
}

#engine-view .engine-kicker {
  font-size: clamp(.68rem, .78vw, .76rem);
  line-height: 1.25;
}

#engine-view .engine-heading h2 {
  font-size: clamp(1.38rem, 2vw, 1.9rem);
  line-height: 1.08;
}

#engine-view .engine-heading p {
  max-width: 600px;
  font-size: clamp(.8rem, .9vw, .9rem);
  line-height: 1.42;
}

.engine-architecture-map {
  position: relative;
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, .25fr);
  gap: 10px;
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
}

.arch-zone {
  position: relative;
  min-width: 0;
  min-height: 0;
  border: 1.5px solid var(--arch-blue);
  background: rgba(255,255,255,.78);
  overflow: hidden;
}

.arch-zone-cloud {
  background: rgba(249,251,255,.84);
}

.arch-zone-title {
  height: 54px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 20px;
  border-bottom: 1px solid rgba(23,104,242,.08);
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(.86rem, 1vw, 1rem);
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: -.015em;
  background: rgba(255,255,255,.64);
}

.arch-zone-title::before {
  content: "";
  width: 14px;
  height: 14px;
  flex: 0 0 auto;
  border: 2px solid var(--arch-line);
  transform: rotate(45deg);
  background: #fff;
}

.arch-zone-title::after {
  content: "";
  position: absolute;
  left: 23px;
  top: 26px;
  width: 8px;
  height: 2px;
  background: var(--arch-line);
}

.arch-zone-body {
  min-height: 0;
  height: calc(100% - 54px);
  padding: clamp(18px, 1.7vw, 26px);
}

.arch-client-body {
  display: grid;
  grid-template-rows: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: clamp(26px, 4vh, 44px);
}

.arch-lane {
  position: relative;
  min-height: 0;
  display: grid;
  align-items: center;
  gap: 0;
}

.arch-lane-ingest,
.arch-lane-query {
  grid-template-columns: 102px 38px minmax(132px, .9fr) 44px minmax(138px, .95fr) 44px minmax(140px, 1fr) 44px minmax(136px, .95fr);
}

.arch-cloud-body {
  display: grid;
  grid-template-rows: .85fr 1.15fr;
  gap: 22px;
  align-items: stretch;
}

.arch-cloud-ingest,
.arch-cloud-query {
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 10px;
}

.arch-cloud-query {
  grid-template-rows: auto 30px auto;
}

.arch-node,
.arch-actor {
  position: relative;
  z-index: 4;
  min-width: 0;
}

.arch-node {
  width: 100%;
  min-height: 94px;
  padding: 12px 11px 11px;
  border: 1px solid rgba(23,104,242,.35);
  border-radius: 9px;
  background: #fff;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 5px;
  text-align: center;
  cursor: pointer;
  box-shadow: 0 4px 10px rgba(23,104,242,.05);
  transition: border-color .16s ease, box-shadow .16s ease, transform .16s ease;
}

.arch-node:hover,
.arch-node:focus-visible {
  transform: translateY(-1px);
  border-color: var(--arch-blue);
  box-shadow: 0 8px 20px rgba(23,104,242,.11);
}

.arch-node strong {
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(.78rem, .84vw, .88rem);
  line-height: 1.18;
}

.arch-node small {
  color: #5f6670;
  font-size: clamp(.7rem, .72vw, .76rem);
  line-height: 1.34;
}

.arch-node-icon {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: linear-gradient(145deg, #2d7afa, #73a8ff);
  color: #fff;
  font-family: "Space Grotesk", sans-serif;
  font-size: .78rem;
  font-weight: 700;
  box-shadow: 0 5px 12px rgba(23,104,242,.18);
}

.arch-node-final {
  border-style: dashed;
  background: rgba(234,242,255,.58);
}

.arch-node-final .arch-node-icon {
  background: linear-gradient(145deg, #6275a9, #8997bc);
}

.arch-actor {
  display: grid;
  justify-items: center;
  gap: 7px;
  color: #20242a;
  text-align: center;
  font-size: clamp(.68rem, .72vw, .75rem);
  line-height: 1.2;
}

.arch-person {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--arch-blue);
  color: #fff;
  font-size: 1.32rem;
  box-shadow: 0 5px 14px rgba(23,104,242,.16);
}

.arch-arrow {
  position: relative;
  z-index: 2;
  width: 100%;
  height: 1.5px;
  background: var(--arch-line);
}

.arch-arrow::after {
  content: "";
  position: absolute;
  right: -1px;
  top: 50%;
  width: 7px;
  height: 7px;
  border-top: 1.5px solid var(--arch-line);
  border-right: 1.5px solid var(--arch-line);
  transform: translateY(-50%) rotate(45deg);
}

.arch-step {
  position: absolute;
  z-index: 6;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--arch-step);
  color: #fff;
  font-size: .7rem;
  font-weight: 700;
  box-shadow: 0 2px 5px rgba(0,0,0,.08);
}

.arch-step-top { top: -11px; left: 50%; transform: translateX(-50%); }
.arch-step-arrow { top: 50%; left: 50%; transform: translate(-50%, -50%); }

.arch-lane-label {
  position: absolute;
  left: 110px;
  top: -15px;
  z-index: 5;
  padding: 3px 7px;
  background: #fff;
  color: #424850;
  font-size: clamp(.66rem, .68vw, .72rem);
  line-height: 1.2;
  font-weight: 600;
}

.arch-retrieval-group {
  position: absolute;
  z-index: 1;
  left: 134px;
  right: 4px;
  top: 6px;
  bottom: 6px;
  border: 1.5px dashed rgba(23,104,242,.72);
  border-radius: 18px;
  background: rgba(234,242,255,.56);
  pointer-events: none;
}

.arch-retrieval-group span {
  position: absolute;
  left: 50%;
  bottom: -25px;
  transform: translateX(-50%);
  color: var(--arch-blue);
  font-size: clamp(.66rem, .68vw, .72rem);
  line-height: 1.25;
  white-space: nowrap;
}

.arch-cloud-node {
  width: min(210px, 90%);
}

.arch-cloud-arrow {
  width: 1.5px;
  min-height: 28px;
  background: var(--arch-line);
  position: relative;
}

.arch-cloud-arrow::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -1px;
  width: 7px;
  height: 7px;
  border-right: 1.5px solid var(--arch-line);
  border-bottom: 1.5px solid var(--arch-line);
  transform: translateX(-50%) rotate(45deg);
}

.arch-cloud-caption {
  color: var(--arch-blue);
  font-size: clamp(.66rem, .68vw, .72rem);
  line-height: 1.25;
  text-align: center;
}

.arch-cross-zone {
  position: absolute;
  z-index: 3;
  right: calc(25% - 9px);
  width: 42px;
  height: 1.5px;
  background: var(--arch-line);
  pointer-events: none;
}

.arch-cross-zone::after {
  content: "";
  position: absolute;
  right: 0;
  top: 50%;
  width: 7px;
  height: 7px;
  border-top: 1.5px solid var(--arch-line);
  border-right: 1.5px solid var(--arch-line);
  transform: translateY(-50%) rotate(45deg);
}

.arch-cross-ingest { top: 34%; }
.arch-cross-query { top: 70%; }

.arch-token-note {
  position: absolute;
  z-index: 7;
  left: 25%;
  bottom: 8px;
  max-width: 340px;
  padding: 7px 9px;
  border: 1px dashed rgba(23,104,242,.45);
  border-radius: 6px;
  background: rgba(255,255,255,.94);
  color: #555d67;
  font-size: clamp(.66rem, .68vw, .72rem);
  line-height: 1.34;
}

.engine-controls-rail {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

.engine-control-card {
  min-width: 0;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: rgba(255,255,255,.9);
}

.engine-control-card span {
  display: block;
  color: var(--arch-blue);
  font-size: clamp(.62rem, .66vw, .68rem);
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: .1em;
}

.engine-control-card strong {
  display: block;
  margin-top: 5px;
  font-size: clamp(.76rem, .8vw, .84rem);
  line-height: 1.24;
}

.engine-control-card small {
  display: block;
  margin-top: 5px;
  color: #646b74;
  font-size: clamp(.69rem, .72vw, .74rem);
  line-height: 1.34;
}

/* Preserve readable type on short screens. The Engine Room scrolls internally
   instead of shrinking architectural labels to illegible sizes. */
@media (max-height: 820px) {
  #engine-view .engine-layout {
    grid-template-rows: auto minmax(500px, auto) auto;
    overflow-y: auto;
    padding-bottom: 12px;
    scrollbar-width: thin;
  }

  #engine-view .engine-architecture-map {
    min-height: 500px;
  }

  #engine-view .arch-zone-title {
    height: 50px;
  }

  #engine-view .arch-zone-title::after {
    top: 24px;
  }

  #engine-view .arch-zone-body {
    height: calc(100% - 50px);
    padding: 16px 18px;
  }

  #engine-view .arch-node {
    min-height: 86px;
    padding: 10px;
  }

  #engine-view .arch-node-icon {
    width: 34px;
    height: 34px;
    font-size: .72rem;
  }

  #engine-view .arch-person {
    width: 42px;
    height: 42px;
  }

  #engine-view .arch-step {
    width: 27px;
    height: 27px;
    font-size: .66rem;
  }
}

/* On tablets, keep node text at a readable size and allow controlled horizontal
   movement within the client architecture rather than scaling the diagram down. */
@media (max-width: 980px) {
  #engine-view .engine-layout {
    width: min(820px, 95vw);
    grid-template-rows: auto minmax(0, 1fr) auto;
    overflow-y: auto;
  }

  #engine-view .engine-heading {
    grid-template-columns: 1fr;
    gap: 7px;
    padding-block: 5px;
  }

  #engine-view .engine-heading p {
    justify-self: start;
    max-width: 720px;
  }

  .engine-architecture-map {
    grid-template-columns: 1fr;
    overflow-y: auto;
  }

  .arch-zone {
    min-height: 380px;
    overflow-x: auto;
    overflow-y: hidden;
  }

  .arch-zone-client .arch-zone-body {
    min-width: 1050px;
  }

  .arch-zone-cloud {
    min-height: 300px;
  }

  .arch-zone-cloud .arch-zone-body {
    min-width: 0;
  }

  .arch-cross-zone {
    display: none;
  }

  .arch-lane-ingest,
  .arch-lane-query {
    grid-template-columns: 96px 34px 150px 38px 150px 38px 150px 38px 150px;
  }

  .engine-controls-rail {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 700px) {
  #engine-view .top-action,
  #engine-view .top-label {
    font-size: .68rem;
    letter-spacing: .14em;
  }

  #engine-view .engine-layout {
    width: 94vw;
  }

  #engine-view .engine-heading h2 {
    font-size: clamp(1.25rem, 5vw, 1.6rem);
  }

  #engine-view .engine-heading p {
    font-size: .82rem;
  }

  .arch-zone-client .arch-zone-body {
    min-width: 980px;
  }

  .engine-controls-rail {
    grid-template-columns: 1fr;
  }

  .engine-control-card span {
    font-size: .68rem;
  }

  .engine-control-card strong {
    font-size: .84rem;
  }

  .engine-control-card small {
    font-size: .74rem;
  }
}