/* styles.css */
:root {
  --bg: #020617;
  --panel: #0f172ae0;
  --panel-strong: #0f172af5;
  --panel-soft: #1e293bb8;
  --border: #94a3b82e;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --accent-strong: #0ea5e9;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #fb7185;
  --shadow: 0 24px 70px #02061773;
  --floor-height: 72px;
  --floor-count: 10;
  --elevator-count: 4;
  --travel-time: .7s;
  --buncss-light: ;
  --buncss-dark: initial;
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Noto Sans, Ubuntu, Cantarell, Helvetica Neue, sans-serif;
}

* {
  box-sizing: border-box;
}

html, body {
  min-height: 100%;
  margin: 0;
}

body {
  color: var(--text);
  background: radial-gradient(circle at top, #38bdf829, #0000 28%), linear-gradient(#0f172a 0%, #020617 100%);
}

button {
  font: inherit;
}

.app-shell {
  max-width: 1440px;
  margin: 0 auto;
  padding: 24px;
}

.app-header {
  margin-bottom: 24px;
}

.eyebrow {
  color: var(--accent);
  letter-spacing: .08em;
  text-transform: uppercase;
  margin: 0 0 8px;
  font-size: .85rem;
  font-weight: 700;
}

h1, h2, h3, p, ul {
  margin-top: 0;
}

h1 {
  margin-bottom: 8px;
  font-size: clamp(2rem, 3vw, 3rem);
}

h2 {
  margin-bottom: 12px;
  font-size: 1rem;
}

.run-meta, .lead {
  max-width: 900px;
}

.run-meta {
  color: var(--text);
  margin-bottom: 12px;
}

.lead {
  color: var(--muted);
  margin-bottom: 20px;
  line-height: 1.6;
}

.header-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

.summary-card, .building-card, .panel-card {
  background: var(--panel);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
  border-radius: 20px;
}

.summary-card {
  padding: 18px 20px;
}

.summary-card ul {
  color: var(--muted);
  margin-bottom: 0;
  padding-left: 18px;
  line-height: 1.7;
}

.simulator-layout {
  display: grid;
  grid-template-columns: minmax(0, 2.2fr) minmax(320px, 1fr);
  align-items:  start;
  gap: 24px;
}

.building-card {
  padding: 20px;
}

.building-toolbar {
  display: flex;
  justify-content: space-between;
  align-items:  center;
  gap: 16px;
  margin-bottom: 20px;
}

.building-toolbar p {
  color: var(--muted);
  margin-bottom: 0;
}

.secondary-button {
  border: 1px solid var(--border);
  color: var(--text);
  cursor: pointer;
  background: linear-gradient(#1e293beb, #0f172aeb);
  border-radius: 999px;
  padding: 10px 16px;
  transition: transform .15s, border-color .15s;
}

.secondary-button:hover {
  border-color: #38bdf873;
  transform: translateY(-1px);
}

.building-board {
  display: grid;
  grid-template-columns: minmax(220px, 260px) minmax(0, 1fr);
  gap: 22px;
}

.column-heading {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 12px;
  font-size: .88rem;
  font-weight: 700;
}

.floors-panel {
  border: 1px solid var(--border);
  overflow: hidden;
  background: var(--panel-soft);
  border-radius: 18px;
}

.floor-row {
  display: flex;
  min-height: var(--floor-height);
  border-bottom: 1px solid #94a3b81f;
  justify-content: space-between;
  align-items:  center;
  gap: 12px;
  padding: 10px 14px;
}

.floor-row:last-child {
  border-bottom: 0;
}

.floor-title {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.floor-title strong {
  font-size: 1rem;
}

.floor-title span {
  color: var(--muted);
  font-size: .84rem;
}

.call-button-group {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.call-button, .car-button {
  color: var(--text);
  cursor: pointer;
  background: linear-gradient(#1e293bf2, #0f172af2);
  border: 1px solid #94a3b83d;
  transition: transform .15s, border-color .15s, box-shadow .15s, background .15s;
}

.call-button:hover, .car-button:hover {
  border-color: #38bdf880;
  transform: translateY(-1px);
  box-shadow: 0 10px 20px #0f172a33;
}

.call-button {
  border-radius: 12px;
  min-width: 72px;
  padding: 9px 10px;
  font-weight: 700;
}

.call-button.is-waiting {
  background: linear-gradient(#78350fe6, #431407f2);
  border-color: #f59e0bcc;
}

.call-button.is-assigned {
  background: linear-gradient(#0369a1eb, #082f49f5);
  border-color: #38bdf8cc;
}

.shaft-title-row {
  display: grid;
  grid-template-columns: repeat(var(--elevator-count), minmax(84px, 1fr));
  gap: 14px;
  margin-bottom: 12px;
}

.shaft-label {
  text-align: center;
  border: 1px solid var(--border);
  color: var(--muted);
  background: #0f172ab8;
  border-radius: 999px;
  padding: 8px 10px;
  font-size: .85rem;
  font-weight: 700;
}

.shafts-stage {
  display: grid;
  grid-template-columns: repeat(var(--elevator-count), minmax(84px, 1fr));
  height: calc(var(--floor-count) * var(--floor-height));
  gap: 14px;
}

.shaft-column {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, #0f172af2, #020617fa), repeating-linear-gradient(to bottom, #94a3b805 0 calc(var(--floor-height)  - 1px), #94a3b82e calc(var(--floor-height)  - 1px) var(--floor-height));
  border: 1px solid #38bdf829;
  border-radius: 18px;
}

.shaft-column:before {
  content: "";
  position: absolute;
  background: repeating-linear-gradient(to bottom, transparent 0 calc(var(--floor-height)  - 1px), #94a3b81f calc(var(--floor-height)  - 1px) var(--floor-height));
  pointer-events: none;
  inset: 0;
}

.elevator-car {
  position: absolute;
  transition: top var(--travel-time) ease-in-out, transform .22s ease, box-shadow .22s ease, border-color .22s ease, background .22s ease;
  overflow: hidden;
  background: linear-gradient(#3b82f633, #0f172af5);
  border: 1px solid #38bdf838;
  border-radius: 16px;
  width: 80%;
  height: 54px;
  left: 10%;
  box-shadow: 0 10px 30px #0f172a73;
}

.elevator-car:before, .elevator-car:after {
  content: "";
  position: absolute;
  background: linear-gradient(#e2e8f02e, #4755691f);
  width: 50%;
  transition: transform .22s;
  top: 0;
  bottom: 0;
}

.elevator-car:before {
  border-right: 1px solid #94a3b82e;
  left: 0;
}

.elevator-car:after {
  border-left: 1px solid #94a3b82e;
  right: 0;
}

.elevator-car.is-moving {
  border-color: #38bdf861;
  box-shadow: 0 14px 36px #0ea5e938;
}

.elevator-car.doors-open:before {
  transform: translateX(-40%);
}

.elevator-car.doors-open:after {
  transform: translateX(40%);
}

.elevator-car.doors-open {
  background: linear-gradient(#22c55e2e, #0f172af5);
}

.car-display {
  position: absolute;
  display: flex;
  z-index: 1;
  text-shadow: 0 1px 3px #020617cc;
  flex-direction: column;
  justify-content: center;
  align-items:  center;
  gap: 2px;
  inset: 8px;
}

.car-name {
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--muted);
  font-size: .72rem;
  font-weight: 700;
}

.car-floor {
  font-size: 1.1rem;
  font-weight: 800;
  line-height: 1;
}

.car-direction {
  color: var(--accent);
  font-size: .75rem;
}

.side-panel {
  display: grid;
  gap: 16px;
}

.panel-card {
  padding: 18px;
}

.muted-text {
  color: var(--muted);
  margin-bottom: 0;
  line-height: 1.6;
}

.elevator-panels {
  display: grid;
  gap: 14px;
}

.elevator-panel {
  background: #02061747;
  border: 1px solid #94a3b824;
  border-radius: 16px;
  padding: 14px;
}

.elevator-panel-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.elevator-panel-header strong {
  display: block;
  margin-bottom: 4px;
}

.elevator-panel-header span {
  color: var(--muted);
  font-size: .86rem;
}

.status-pill {
  color: var(--text);
  background: #0f172acc;
  border: 1px solid #94a3b829;
  border-radius: 999px;
  align-self:  start;
  padding: 6px 10px;
  font-size: .78rem;
  font-weight: 700;
}

.status-pill.is-idle {
  color: #86efac;
  border-color: #22c55e47;
}

.status-pill.is-moving {
  color: #7dd3fc;
  border-color: #38bdf84d;
}

.status-pill.is-doors {
  color: #fcd34d;
  border-color: #f59e0b59;
}

.elevator-panel p {
  color: var(--muted);
  margin-bottom: 12px;
  font-size: .86rem;
  line-height: 1.5;
}

.floor-button-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
}

.car-button {
  border-radius: 12px;
  min-height: 42px;
  font-weight: 700;
}

.car-button.is-active {
  background: linear-gradient(#166534f2, #14532df2);
  border-color: #22c55ecc;
}

.activity-log {
  list-style: none;
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
}

.activity-log li {
  background: #02061747;
  border: 1px solid #94a3b81f;
  border-radius: 14px;
  padding: 10px 12px;
}

.log-time {
  display: block;
  color: var(--muted);
  margin-bottom: 4px;
  font-size: .76rem;
}

.log-message {
  line-height: 1.45;
}

.empty-log {
  color: var(--muted);
}

@media (max-width: 1100px) {
  .simulator-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  .building-board {
    grid-template-columns: 1fr;
  }

  .shaft-title-row, .shafts-stage {
    grid-template-columns: repeat(4, minmax(72px, 1fr));
  }
}

@media (max-width: 640px) {
  .app-shell {
    padding: 16px;
  }

  .building-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .floor-row {
    flex-direction: column;
    align-items:  flex-start;
  }

  .call-button-group {
    justify-content: flex-start;
  }

  .floor-button-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}