/* styles.css */
:root {
  --primary-color: #2563eb;
  --primary-hover: #1d4ed8;
  --secondary-color: #64748b;
  --accent-color: #f59e0b;
  --success-color: #10b981;
  --danger-color: #ef4444;
  --warning-color: #f59e0b;
  --white: #fff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-size-xs: .75rem;
  --font-size-sm: .875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --spacing-1: .25rem;
  --spacing-2: .5rem;
  --spacing-3: .75rem;
  --spacing-4: 1rem;
  --spacing-5: 1.25rem;
  --spacing-6: 1.5rem;
  --spacing-8: 2rem;
  --spacing-10: 2.5rem;
  --spacing-12: 3rem;
  --elevator-width: 80px;
  --elevator-height: 60px;
  --floor-height: 120px;
  --shaft-width: 100px;
  --transition-fast: .15s ease;
  --transition-normal: .3s ease;
  --transition-slow: .5s ease;
}

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

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  color: var(--gray-800);
  background-color: var(--gray-50);
  min-height: 100vh;
  line-height: 1.5;
}

.header {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
  color: var(--white);
  padding: var(--spacing-6) var(--spacing-4);
  box-shadow: 0 2px 4px #0000001a;
}

.header h1 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-4);
  text-align: center;
  font-weight: 700;
}

.model-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-2);
  max-width: 800px;
  margin: 0 auto;
}

.model-info p {
  font-size: var(--font-size-sm);
  padding: var(--spacing-1) var(--spacing-2);
  backdrop-filter: blur(10px);
  background: #ffffff1a;
  border-radius: 4px;
  margin: 0;
}

.main-container {
  padding: var(--spacing-6) var(--spacing-4);
  max-width: 1400px;
  margin: 0 auto;
}

.building-visualization {
  background: var(--white);
  overflow: hidden;
  border-radius: 12px;
  max-width: 1200px;
  margin: 0 auto;
  box-shadow: 0 4px 6px #0000001a;
}

.floor {
  display: grid;
  grid-template-columns: 120px 1fr;
  grid-template-rows: var(--floor-height);
  border-bottom: 2px solid var(--gray-200);
  position: relative;
  background: var(--white);
  transition: background-color var(--transition-fast);
}

.floor:hover {
  background-color: var(--gray-50);
}

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

.floor-controls {
  display: flex;
  padding: var(--spacing-4);
  background: var(--gray-100);
  border-right: 2px solid var(--gray-200);
  flex-direction: column;
  justify-content: center;
  align-items:  center;
}

.floor-button {
  border: 2px solid var(--gray-300);
  background: var(--white);
  font-size: var(--font-size-lg);
  color: var(--gray-700);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  margin: var(--spacing-1) 0;
  position: relative;
  overflow: hidden;
  border-radius: 50%;
  justify-content: center;
  align-items:  center;
  width: 40px;
  height: 40px;
  font-weight: 600;
}

.floor-button:hover {
  background: var(--primary-color);
  color: var(--white);
  border-color: var(--primary-color);
  transform: scale(1.05);
}

.floor-button:active {
  transform: scale(.95);
}

.floor-button.active {
  background: var(--accent-color);
  color: var(--white);
  border-color: var(--accent-color);
  animation: pulse 1s infinite;
}

.floor-button:disabled {
  opacity: .5;
  cursor: not-allowed;
}

.floor-button-up {
  background: linear-gradient(135deg, var(--success-color), #059669);
  color: var(--white);
  border-color: var(--success-color);
}

.floor-button-down {
  background: linear-gradient(135deg, var(--danger-color), #dc2626);
  color: var(--white);
  border-color: var(--danger-color);
}

.floor-label {
  position: absolute;
  left: var(--spacing-4);
  font-weight: 600;
  font-size: var(--font-size-lg);
  color: var(--gray-700);
  z-index: 10;
  top: 50%;
  transform: translateY(-50%);
}

.elevator-shafts {
  display: grid;
  grid-template-columns: repeat(4, var(--shaft-width));
  gap: var(--spacing-2);
  padding: var(--spacing-4);
  position: relative;
}

.elevator-shaft {
  height: calc(var(--floor-height)  - var(--spacing-8));
  background: var(--gray-200);
  border: 2px solid var(--gray-300);
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  box-shadow: inset 0 2px 4px #0000001a;
}

.elevator {
  width: var(--elevator-width);
  height: var(--elevator-height);
  background: linear-gradient(135deg, var(--gray-600), var(--gray-700));
  border: 2px solid var(--gray-800);
  position: absolute;
  left: 50%;
  bottom: var(--spacing-2);
  transition: bottom var(--transition-slow) cubic-bezier(.4, 0, .2, 1);
  display: flex;
  border-radius: 6px;
  justify-content: center;
  align-items:  center;
  transform: translateX(-50%);
  box-shadow: 0 2px 8px #0003;
}

.elevator.moving {
  animation: elevatorMove .5s ease-in-out;
}

.elevator.idle {
  animation: elevatorIdle 2s ease-in-out infinite;
}

.elevator-buttons {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-1);
  padding: var(--spacing-2);
  backdrop-filter: blur(5px);
  background: #0000004d;
  border-radius: 4px;
}

.elevator-button {
  border: 1px solid var(--gray-300);
  background: var(--white);
  font-size: var(--font-size-xs);
  color: var(--gray-700);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  border-radius: 3px;
  justify-content: center;
  align-items:  center;
  width: 20px;
  height: 20px;
  font-weight: 600;
}

.elevator-button:hover {
  background: var(--primary-color);
  color: var(--white);
  border-color: var(--primary-color);
  transform: scale(1.1);
}

.elevator-button:active {
  transform: scale(.9);
}

.elevator-button.active {
  background: var(--accent-color);
  color: var(--white);
  border-color: var(--accent-color);
  animation: buttonGlow 1s infinite alternate;
}

.elevator-button:disabled {
  opacity: .5;
  cursor: not-allowed;
}

.floor-request-indicator {
  position: absolute;
  top: var(--spacing-2);
  right: var(--spacing-2);
  background: var(--warning-color);
  animation: requestPulse 1s infinite;
  box-shadow: 0 0 8px var(--warning-color);
  border-radius: 50%;
  width: 12px;
  height: 12px;
}

.floor-request-indicator.up {
  background: var(--success-color);
  box-shadow: 0 0 8px var(--success-color);
}

.floor-request-indicator.down {
  background: var(--danger-color);
  box-shadow: 0 0 8px var(--danger-color);
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: .7;
    transform: scale(1.1);
  }
}

@keyframes elevatorMove {
  0% {
    transform: translateX(-50%)scale(1);
  }

  50% {
    transform: translateX(-50%)scale(.95);
  }

  100% {
    transform: translateX(-50%)scale(1);
  }
}

@keyframes elevatorIdle {
  0%, 100% {
    transform: translateX(-50%)translateY(0);
  }

  50% {
    transform: translateX(-50%)translateY(-2px);
  }
}

@keyframes buttonGlow {
  0% {
    box-shadow: 0 0 4px var(--accent-color);
  }

  100% {
    box-shadow: 0 0 12px var(--accent-color);
  }
}

@keyframes requestPulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: .5;
    transform: scale(1.2);
  }
}

.floor-button:focus, .elevator-button:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

.floor-button:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

.elevator-button:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

@media (max-width: 1024px) {
  .elevator-shafts {
    grid-template-columns: repeat(4, 80px);
  }

  .shaft-width {
    --shaft-width: 80px;
  }

  .elevator-width {
    --elevator-width: 60px;
  }

  .elevator-height {
    --elevator-height: 45px;
  }
}

@media (max-width: 768px) {
  .header {
    padding: var(--spacing-4) var(--spacing-3);
  }

  .header h1 {
    font-size: var(--font-size-xl);
  }

  .model-info {
    grid-template-columns: 1fr;
    gap: var(--spacing-1);
  }

  .main-container {
    padding: var(--spacing-4) var(--spacing-2);
  }

  .floor {
    grid-template-columns: 100px 1fr;
  }

  .floor-controls {
    padding: var(--spacing-2);
  }

  .floor-button {
    font-size: var(--font-size-base);
    width: 35px;
    height: 35px;
  }

  .elevator-shafts {
    grid-template-columns: repeat(4, 60px);
    gap: var(--spacing-1);
    padding: var(--spacing-2);
  }

  .shaft-width {
    --shaft-width: 60px;
  }

  .elevator-width {
    --elevator-width: 50px;
  }

  .elevator-height {
    --elevator-height: 35px;
  }

  .elevator-buttons {
    padding: var(--spacing-1);
    gap: 2px;
  }

  .elevator-button {
    width: 16px;
    height: 16px;
    font-size: 10px;
  }
}

@media (max-width: 480px) {
  .floor {
    grid-template-columns: 80px 1fr;
  }

  .floor-label {
    font-size: var(--font-size-base);
    left: var(--spacing-2);
  }

  .elevator-shafts {
    grid-template-columns: repeat(4, 50px);
  }

  .shaft-width {
    --shaft-width: 50px;
  }

  .elevator-width {
    --elevator-width: 40px;
  }

  .elevator-height {
    --elevator-height: 30px;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --gray-50: #0f172a;
    --gray-100: #1e293b;
    --gray-200: #334155;
    --gray-300: #475569;
    --gray-400: #64748b;
    --gray-500: #94a3b8;
    --gray-600: #cbd5e1;
    --gray-700: #e2e8f0;
    --gray-800: #f1f5f9;
    --gray-900: #f8fafc;
  }

  body {
    background-color: var(--gray-900);
    color: var(--gray-200);
  }

  .building-visualization {
    background: var(--gray-800);
  }

  .floor:hover {
    background-color: var(--gray-700);
  }

  .floor-controls {
    background: var(--gray-700);
    border-right-color: var(--gray-600);
  }

  .floor-button {
    background: var(--gray-700);
    border-color: var(--gray-600);
    color: var(--gray-200);
  }

  .elevator-shaft {
    background: var(--gray-700);
    border-color: var(--gray-600);
  }
}

@media print {
  .header {
    background: var(--white);
    color: var(--gray-800);
    box-shadow: none;
    border-bottom: 1px solid var(--gray-300);
  }

  .building-visualization {
    box-shadow: none;
    border: 1px solid var(--gray-300);
  }

  .floor-button, .elevator-button {
    print-color-adjust: exact;
    -webkit-print-color-adjust: exact;
  }
}

@media (prefers-contrast: high) {
  .floor-button, .elevator-button, .elevator {
    border-width: 3px;
  }

  .floor {
    border-bottom-width: 3px;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }

  .elevator {
    transition: none;
  }
}