/* styles.css */
:root {
  --bg: #080812;
  --bg-2: #0f0f1c;
  --bg-3: #171728;
  --bg-4: #1e1e30;
  --border: #2a2a42;
  --border-hi: #3a3a58;
  --text: #dde0f0;
  --text-dim: #6a6a90;
  --text-faint: #3e3e60;
  --blue: #4a8fe8;
  --blue-glow: #4a8fe840;
  --blue-dark: #1a3a70;
  --green: #45c97a;
  --green-glow: #45c97a40;
  --green-dark: #1a5030;
  --orange: #ff7043;
  --orange-glow: #ff70434d;
  --yellow: #ffd54f;
  --yellow-glow: #ffd54f40;
  --red: #ef5350;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 6px 24px #0009;
  --shadow-sm: 0 2px 8px #0006;
}

*, *:before, *:after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  font-family: Segoe UI, system-ui, -apple-system, BlinkMacSystemFont, Roboto, Noto Sans, Ubuntu, Cantarell, Helvetica Neue, sans-serif;
  font-size: 14px;
  line-height: 1.5;
}

#app {
  max-width: 1140px;
  margin: 0 auto;
  padding: 16px 16px 48px;
}

.app-header {
  text-align: center;
  border-bottom: 1px solid var(--border);
  margin-bottom: 28px;
  padding: 24px 0 20px;
}

.app-header h1 {
  letter-spacing: -.02em;
  color: var(--blue);
  text-shadow: 0 0 32px var(--blue-glow);
  margin-bottom: 12px;
  font-size: 1.9rem;
  font-weight: 700;
}

.meta-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}

.badge {
  display: inline-flex;
  background: var(--bg-3);
  border: 1px solid var(--border);
  color: var(--text-dim);
  border-radius: 100px;
  align-items:  center;
  gap: 5px;
  padding: 4px 14px;
  font-size: .78rem;
}

.badge strong {
  color: var(--text);
  font-weight: 600;
}

.app-main {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.building-section {
  display: flex;
  justify-content: center;
}

.building-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow-x: auto;
  padding: 20px;
}

.building-layout {
  display: flex;
  align-items:  flex-start;
  gap: 0;
}

.floors-col {
  display: flex;
  border-right: 2px solid var(--border);
  user-select: none;
  flex-direction: column;
  padding-right: 10px;
}

.floor-row {
  display: flex;
  border-bottom: 1px solid var(--text-faint);
  align-items:  center;
  gap: 8px;
  padding: 0 4px;
}

.floor-row:last-child {
  border-bottom: none;
}

.floor-badge {
  text-align: right;
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
  width: 22px;
  font-size: .78rem;
  font-weight: 700;
}

.call-btn-group {
  display: flex;
  flex-direction: column;
  align-items:  center;
  gap: 3px;
}

.btn-spacer {
  width: 26px;
  height: 26px;
}

.call-btn {
  border: 1.5px solid var(--border-hi);
  background: var(--bg-4);
  color: var(--text-dim);
  cursor: pointer;
  display: flex;
  border-radius: 50%;
  justify-content: center;
  align-items:  center;
  width: 26px;
  height: 26px;
  transition: background .15s, border-color .15s, color .15s, box-shadow .15s;
  font-size: .6rem;
  line-height: 1;
}

.call-btn:hover {
  background: var(--bg-3);
  border-color: var(--blue);
  color: var(--blue);
}

.call-btn.active {
  background: var(--orange);
  border-color: var(--orange);
  color: #fff;
  box-shadow: 0 0 10px var(--orange-glow);
  animation: pulse-orange 1.2s ease-in-out infinite;
}

@keyframes pulse-orange {
  0%, 100% {
    box-shadow: 0 0 6px var(--orange-glow);
  }

  50% {
    box-shadow: 0 0 18px var(--orange-glow);
  }
}

.shafts-area {
  display: flex;
  flex-direction: column;
}

.shaft-labels-row {
  display: flex;
  padding-bottom: 6px;
  padding-left: 2px;
}

.shaft-lbl {
  text-align: center;
  color: var(--blue);
  letter-spacing: .08em;
  text-transform: uppercase;
  font-size: .75rem;
  font-weight: 700;
}

.shafts-body {
  display: flex;
  position: relative;
}

.shaft {
  position: relative;
  border-right: 1px solid var(--border);
  border-left: 1px solid var(--border);
  background: repeating-linear-gradient(to top, var(--text-faint) 0px, var(--text-faint) 1px, transparent 1px, transparent 88px );
  margin-left: -1px;
}

.shaft-guide {
  position: absolute;
  background: var(--border);
  pointer-events: none;
  height: 1px;
  left: 0;
  right: 0;
}

.elevator-car {
  position: absolute;
  border-radius: var(--radius-sm);
  display: flex;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  z-index: 2;
  flex-direction: column;
  transition: bottom .8s linear;
  left: 7px;
}

.elevator-car.idle {
  background: linear-gradient(160deg, #1c2e52, #0f1c38);
  border: 1.5px solid #2a4a82;
}

.elevator-car.idle .hud-id {
  color: #4a8fe8;
}

.elevator-car.moving {
  border: 1.5px solid var(--blue);
  box-shadow: 0 0 16px var(--blue-glow), var(--shadow-sm);
  background: linear-gradient(160deg, #1a3a70, #0f2550);
}

.elevator-car.moving .hud-id {
  color: var(--blue);
}

.elevator-car.doors_open {
  border: 1.5px solid var(--green);
  box-shadow: 0 0 16px var(--green-glow), var(--shadow-sm);
  background: linear-gradient(160deg, #1a4a2e, #0f2c1a);
}

.elevator-car.doors_open .hud-id {
  color: var(--green);
}

.car-doors {
  display: flex;
  overflow: hidden;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  flex: 1;
}

.door-panel {
  transform-origin: left center;
  background: linear-gradient(#ffffff0a 0%, #ffffff03 100%);
  border-right: 1px solid #ffffff0f;
  flex: 1;
  transition: transform .4s;
}

.door-panel.right {
  transform-origin: right center;
  border-left: 1px solid #ffffff0f;
  border-right: none;
}

.elevator-car.doors_open .door-panel.left, .elevator-car.doors_open .door-panel.right {
  transform: scaleX(.08);
}

.car-hud {
  display: flex;
  font-variant-numeric: tabular-nums;
  background: #00000059;
  flex-shrink: 0;
  justify-content: space-between;
  align-items:  center;
  height: 18px;
  padding: 2px 6px;
  font-size: .68rem;
}

.hud-id {
  letter-spacing: .05em;
  font-weight: 700;
}

.hud-floor {
  color: var(--yellow);
  font-size: .72rem;
  font-weight: 700;
}

.hud-dir {
  color: var(--text-dim);
  font-size: .6rem;
}

.elevator-car.moving .hud-floor {
  color: var(--blue);
}

.elevator-car.doors_open .hud-floor {
  color: var(--green);
}

.bottom-section {
  display: flex;
  flex-wrap: wrap;
  align-items:  flex-start;
  gap: 20px;
}

.panel-card, .log-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  flex: 1;
  min-width: 300px;
  padding: 20px;
}

.card-heading {
  display: flex;
  border-bottom: 1px solid var(--border);
  align-items:  flex-start;
  gap: 12px;
  margin-bottom: 16px;
  padding-bottom: 14px;
}

.card-icon {
  margin-top: 2px;
  font-size: 1.4rem;
  line-height: 1;
}

.card-heading h2 {
  color: var(--text);
  margin-bottom: 3px;
  font-size: 1rem;
  font-weight: 700;
}

.card-sub {
  color: var(--text-dim);
  font-size: .78rem;
}

.control-panels {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.interior-panel {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px;
}

.panel-title {
  color: var(--blue);
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: 6px;
  font-size: .78rem;
  font-weight: 700;
}

.panel-status {
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
  min-height: 16px;
  margin-bottom: 10px;
  font-size: .72rem;
}

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

.floor-btn {
  aspect-ratio: 1;
  border: 1.5px solid var(--border-hi);
  background: var(--bg-4);
  color: var(--text-dim);
  cursor: pointer;
  font-variant-numeric: tabular-nums;
  border-radius: 4px;
  transition: background .12s, border-color .12s, color .12s, box-shadow .12s;
  font-size: .72rem;
  font-weight: 600;
}

.floor-btn:hover {
  background: var(--blue-dark);
  border-color: var(--blue);
  color: var(--blue);
}

.floor-btn.queued {
  background: var(--yellow-glow);
  border-color: var(--yellow);
  color: var(--yellow);
  box-shadow: 0 0 8px var(--yellow-glow);
  animation: pulse-yellow 1.4s ease-in-out infinite;
}

.floor-btn.open {
  background: var(--green-glow);
  border-color: var(--green);
  color: var(--green);
  box-shadow: 0 0 10px var(--green-glow);
  animation: none;
}

@keyframes pulse-yellow {
  0%, 100% {
    box-shadow: 0 0 5px var(--yellow-glow);
  }

  50% {
    box-shadow: 0 0 14px var(--yellow-glow);
  }
}

.event-log {
  overflow-y: auto;
  display: flex;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
  flex-direction: column;
  gap: 3px;
  max-height: 320px;
}

.event-log::-webkit-scrollbar {
  width: 6px;
}

.event-log::-webkit-scrollbar-track {
  background: none;
}

.event-log::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

.log-entry {
  display: flex;
  background: var(--bg-3);
  border-left: 2px solid var(--border);
  animation: slide-in .18s ease;
  border-radius: 4px;
  align-items: baseline;
  gap: 8px;
  padding: 4px 8px;
  font-size: .76rem;
  line-height: 1.4;
}

.log-entry:first-child {
  border-left-color: var(--blue);
}

@keyframes slide-in {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.log-ts {
  color: var(--text-faint);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  font-size: .7rem;
}

.log-msg {
  color: var(--text-dim);
}

@media (max-width: 680px) {
  .bottom-section {
    flex-direction: column;
  }

  .panel-card, .log-card {
    min-width: unset;
    width: 100%;
  }

  .app-header h1 {
    font-size: 1.4rem;
  }
}