#intro-sequence {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: black;
  z-index: 10001;
  display: flex;
  align-items: center;
  justify-content: center;
}

.intro-screen {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  opacity: 0;
  transition: opacity 1s ease;
}

.intro-screen img {
  max-width: 80%;
  height: auto;
  display: block;
  margin: 0 auto;
}

.fade-in {
  opacity: 1;
}

.fade-out {
  opacity: 0;
}

#loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.95);
  backdrop-filter: blur(10px);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 1;
  transition: opacity 0.5s ease-out;
}

#loading-screen.fade-out {
  opacity: 0;
  pointer-events: none;
}

.loading-content {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 30px;
}

.loading-logo {
  width: 200px;
  height: auto;
  animation: pulse 2s infinite;
}

.loading-bar-container {
  width: 300px;
  height: 4px;
  background: rgba(74, 158, 255, 0.2);
  border-radius: 2px;
  overflow: hidden;
  position: relative;
}

.loading-bar {
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    var(--theme-color),
    transparent
  );
  animation: loading-animation 2s infinite ease;
}

.loading-text {
  color: white;
  font-size: 18px;
  letter-spacing: 1px;
  animation: fade 2s infinite;
}

@keyframes loading-animation {
  0% {
    left: -100%;
  }
  100% {
    left: 100%;
  }
}

@keyframes pulse {
  0% {
    transform: scale(1);
    filter: brightness(1);
  }
  50% {
    transform: scale(1.05);
    filter: brightness(1.2);
  }
  100% {
    transform: scale(1);
    filter: brightness(1);
  }
}

@keyframes fade {
  0%, 100% {
    opacity: 0.5;
  }
  50% {
    opacity: 1;
  }
}

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

body {
  overflow: hidden;
  font-family: 'Arial', sans-serif;
  background: #000;
  color: white;
}

#loading {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: white;
  font-size: 24px;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.8);
  padding: 20px;
  border-radius: 10px;
  border: 1px solid var(--theme-border);
}

#info-panel {
  position: fixed;
  right: 0;
  top: 0;
  width: 300px;
  height: 100vh;
  background: rgba(0, 0, 0, 0.8);
  padding: 20px;
  transform: translateX(0);
  transition: transform 0.3s ease, opacity 0.3s ease;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 15px;
  overflow: hidden;
  max-height: 100vh;
  overflow-y: auto;
  background: var(--theme-color-transparent);
  border: 1px solid var(--theme-border);
}

#info-panel > * {
  flex-shrink: 0;
}

#info-panel::-webkit-scrollbar {
  width: 8px;
}

#info-panel::-webkit-scrollbar-track {
  background: rgba(74, 158, 255, 0.1);
  border-radius: 4px;
}

#info-panel::-webkit-scrollbar-thumb {
  background: var(--theme-color);
  border-radius: 4px;
}

#info-panel::-webkit-scrollbar-thumb:hover {
  background: #357acc;
}

#info-panel h1 {
  font-size: 24px;
  margin-bottom: 20px;
  color: var(--theme-color);
}

#time-control {
  width: 100%;
  margin: 10px 0;
}

#time-controls {
  position: fixed;
  bottom: 80px;
  left: 20px;
  z-index: 100;
  background: var(--theme-color-transparent);
  border: 1px solid var(--theme-border);
  padding: 15px;
  border-radius: 10px;
}

.time-slider {
  width: 200px;
  margin: 10px 0;
}

.time-label {
  color: var(--theme-color);
  font-size: 14px;
  display: block;
  margin-bottom: 5px;
}

#current-year {
  display: block;
  text-align: center;
  font-size: 14px;
  color: var(--theme-color);
}

#time-factor {
  color: var(--theme-color);
  font-size: 12px;
  text-align: center;
  margin-top: 5px;
}

#info-content {
  flex-grow: 1;
  font-size: 14px;
  line-height: 1.6;
  overflow-y: auto;
  padding-right: 10px;
  scrollbar-width: thin;
  scrollbar-color: var(--theme-color) rgba(74, 158, 255, 0.1);
}

#info-content::-webkit-scrollbar {
  width: 8px;
}

#info-content::-webkit-scrollbar-track {
  background: rgba(74, 158, 255, 0.1);
  border-radius: 4px;
}

#info-content::-webkit-scrollbar-thumb {
  background: var(--theme-color);
  border-radius: 4px;
}

#info-content::-webkit-scrollbar-thumb:hover {
  background: #357acc;
}

#info-content p {
  margin-bottom: 15px;
}

#navigation {
  position: fixed;
  bottom: 20px;
  left: 20px;
  z-index: 100;
}

.zoom-indicator {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: rgba(74, 158, 255, 0.2);
  padding: 5px 10px;
  border-radius: 5px;
  font-size: 12px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.zoom-indicator.active {
  opacity: 1;
}

button {
  background: var(--theme-color-transparent);
  border: 1px solid var(--theme-border);
  color: white;
  padding: 12px 24px;
  margin-right: 12px;
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: bold;
  font-size: 12px;
}

button:hover {
  background: var(--theme-color-hover);
  transform: translateY(-2px);
  box-shadow: 0 2px 8px var(--theme-color-hover);
}

button:active {
  transform: translateY(0);
}

.sun-glare {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  background: radial-gradient(circle at center, 
    rgba(255, 240, 200, 0.2) 0%,
    rgba(255, 240, 200, 0.15) 5%,
    rgba(255, 240, 200, 0.1) 10%,
    rgba(255, 240, 200, 0.05) 20%,
    transparent 70%);
  z-index: 1;
  opacity: 0.5;
  filter: blur(20px);
}

#view-earth {
  background: var(--theme-color-transparent);
  border: 1px solid var(--theme-border);
  position: relative;
  z-index: 1000;
}

#view-earth:hover {
  background: var(--theme-color-hover);
  transform: translateY(-2px);
}

#return-galaxy {
  background: var(--theme-color-transparent);
  border: 1px solid var(--theme-border);
  position: relative;
  z-index: 1000;
}

#return-galaxy:hover {
  background: var(--theme-color-hover);
  transform: translateY(-2px);
}

.hidden {
  display: none !important;
}

#credits {
  position: fixed;
  left: 20px;
  top: 20px;
  background: var(--theme-color-transparent);
  border: 1px solid var(--theme-border);
  color: white;
  padding: 12px 24px;
  border-radius: 6px;
  font-size: 12px;
  z-index: 1000;
  text-decoration: none;
  transition: all 0.3s ease;
  display: inline-block;
}

#credits:hover {
  background: var(--theme-color-hover);
  transform: translateY(-2px);
  box-shadow: 0 2px 8px var(--theme-color-hover);
}

#credits:active {
  transform: translateY(0);
}

#gui-toggle {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 1001;
  background: var(--theme-color-transparent);
  border: 1px solid var(--theme-border);
  color: white;
  padding: 12px 24px;
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.3s ease;
  display: block !important;
}

#gui-toggle:hover {
  background: var(--theme-color-hover);
  transform: translateY(-2px);
  box-shadow: 0 2px 8px var(--theme-color-hover);
}

.ui-hidden #info-panel,
.ui-hidden #navigation,
.ui-hidden #credits,
.ui-hidden #time-controls,
.ui-hidden .planet-info,
.ui-hidden #toggle-trails {
  display: none !important;
}

#toggle-trails {
  position: fixed;
  bottom: 140px;
  right: 20px;
  background: var(--theme-color-transparent);
  border: 1px solid var(--theme-border);
  color: white;
  padding: 12px 24px;
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.3s ease;
  z-index: 1000;
}

#toggle-trails:hover {
  background: var(--theme-color-hover);
  transform: translateY(-2px);
  box-shadow: 0 2px 8px var(--theme-color-hover);
}

.planet-info {
  position: fixed;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.8);
  border: 1px solid var(--theme-border);
  border-radius: 10px;
  padding: 20px;
  color: white;
  width: 300px;
  z-index: 1000;
  background: var(--theme-color-transparent);
  border: 1px solid var(--theme-border);
}

.planet-info.hidden {
  display: none;
}

.planet-info h2 {
  color: var(--theme-color);
  margin-bottom: 15px;
  font-size: 20px;
}

.planet-info h3 {
  color: var(--theme-color);
  margin-bottom: 10px;
  font-size: 18px;
}

.planet-content {
  margin-bottom: 15px;
}

.planet-stats {
  margin-top: 15px;
  padding-top: 15px;
  border-top: 1px solid rgba(74, 158, 255, 0.3);
}

.planet-stats p {
  margin: 5px 0;
}

#follow-planet {
  width: 100%;
  margin-top: 15px;
}

.ui-hidden .planet-info {
  display: none;
}

.close-button {
  position: absolute;
  top: 10px;
  right: 10px;
  font-size: 24px;
  cursor: pointer;
  color: var(--theme-color);
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: all 0.3s ease;
}

.close-button:hover {
  background: rgba(74, 158, 255, 0.2);
  transform: scale(1.1);
}

.planet-info .planet-content {
  position: relative;
  padding-top: 20px;
}

.planet-info .close-button {
  position: absolute;
  top: -10px; 
  right: -10px; 
  background: rgba(0, 0, 0, 0.8);
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 2000; 
  font-size: 20px;
  color: var(--theme-color);
  border: 1px solid var(--theme-border);
}

.planet-info .close-button:hover {
  background: rgba(74, 158, 255, 0.2);
  transform: scale(1.1);
}

#follow-galaxy {
  width: 100%;
  margin-top: 15px;
}

#view-andromeda-system {
  width: 100%;
  margin-top: 15px;
  background: var(--theme-color-transparent);
  border: 1px solid var(--theme-border);
  color: white;
  padding: 12px 24px;
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: bold;
  font-size: 12px;
}

#view-andromeda-system:hover {
  background: var(--theme-color-hover);
  transform: translateY(-2px);
  box-shadow: 0 2px 8px var(--theme-color-hover);
}

#view-andromeda-system:active {
  transform: translateY(0);
}

.galaxy-info h2 {
  color: var(--theme-color);
  margin-bottom: 15px;
  font-size: 24px;
}

.custom-planet-panel {
  position: fixed;
  left: 20px;
  top: 120px;
  background: var(--theme-color-transparent);
  border: 1px solid var(--theme-border);
  border-radius: 10px;
  padding: 15px;
  color: white;
  width: 280px;
  max-height: 80vh;
  z-index: 10000;
  display: none;
  cursor: move;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--theme-color) rgba(74, 158, 255, 0.1);
}

.custom-planet-panel.active {
  display: block;
}

.custom-planet-panel h2 {
  position: sticky;
  top: 0;
  background: rgba(0, 0, 0, 0.8);
  padding: 10px 0;
  margin: -15px -15px 10px -15px;
  padding: 15px;
  border-bottom: 1px solid var(--theme-border);
  color: var(--theme-color);
  margin-bottom: 10px;
  font-size: 18px;
  cursor: move;
}

.custom-planet-panel::-webkit-scrollbar {
  width: 8px;
}

.custom-planet-panel::-webkit-scrollbar-track {
  background: rgba(74, 158, 255, 0.1);
  border-radius: 4px;
}

.custom-planet-panel::-webkit-scrollbar-thumb {
  background: var(--theme-color);
  border-radius: 4px;
}

.custom-planet-panel::-webkit-scrollbar-thumb:hover {
  background: #357acc;
}

.planet-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.form-group-row {
  display: flex;
  gap: 10px;
}

.form-group {
  flex: 1;
}

.form-group label {
  display: block;
  margin-bottom: 3px;
  color: var(--theme-color);
  font-size: 12px;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 5px;
  background: rgba(74, 158, 255, 0.1);
  border: 1px solid var(--theme-border);
  border-radius: 4px;
  color: white;
  font-size: 12px;
}

.form-group select {
  cursor: pointer;
}

.features {
  display: flex;
  justify-content: space-around;
  padding: 5px 0;
}

.features label {
  display: flex;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  font-size: 12px;
}

.features input[type="checkbox"] {
  width: auto;
  cursor: pointer;
}

#create-planet-btn {
  width: 100%;
  margin-top: 10px;
  padding: 8px;
}

#toggle-planet-builder {
  position: fixed;
  top: 70px;
  left: 20px;
  z-index: 1001;
  background: var(--theme-color-transparent);
  border: 1px solid var(--theme-border);
  color: white;
  padding: 12px 24px;
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.3s ease;
  display: block !important;
}

#toggle-planet-builder:hover {
  background: var(--theme-color-hover);
  transform: translateY(-2px);
  box-shadow: 0 2px 8px var(--theme-color-hover);
}

.custom-planet-indicator {
  position: fixed;
  padding: 3px 8px;
  background: var(--theme-color-transparent);
  border: 1px solid var(--theme-border);
  color: white;
  border-radius: 4px;
  pointer-events: auto;
  z-index: 1000;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.custom-planet-indicator:hover {
  background: var(--theme-color-hover);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px var(--theme-color-hover);
}

.bloom-controls {
  margin-top: 20px;
  padding: 15px;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 8px;
}

.bloom-controls input[type="range"] {
  width: 100%;
}

#bloom-threshold {
  value: 1.0;
}

.sun-controls {
  margin-top: 20px;
  padding: 15px;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 8px;
}

.sun-controls h3 {
  color: var(--theme-color);
  margin-bottom: 10px;
  font-size: 16px;
}

.sun-slider {
  margin: 10px 0;
}

.sun-slider label {
  display: block;
  color: #fff;
  margin-bottom: 5px;
  font-size: 14px;
}

.sun-slider input {
  width: 100%;
  margin-top: 5px;
}

#planet-type {
  width: 100%;
  padding: 5px;
  background: rgba(74, 158, 255, 0.1);
  border: 1px solid var(--theme-border);
  border-radius: 4px;
  color: white;
  font-size: 12px;
  margin-bottom: 10px;
}

.galaxy-selector {
  margin: 20px 0;
  padding: 15px;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 8px;
}

.galaxy-selector h3 {
  color: var(--theme-color);
  margin-bottom: 10px;
  font-size: 16px;
}

#galaxy-select {
  width: 100%;
  padding: 8px;
  background: rgba(74, 158, 255, 0.1);
  border: 1px solid var(--theme-border);
  border-radius: 4px;
  color: white;
  margin-bottom: 15px;
  cursor: pointer;
}

#galaxy-info {
  font-size: 14px;
  line-height: 1.6;
}

#galaxy-info p {
  margin-bottom: 10px;
}

.galaxy-stats {
  margin-top: 15px;
  padding-top: 15px;
  border-top: 1px solid rgba(74, 158, 255, 0.3);
}

.galaxy-stats p {
  margin: 5px 0;
}

.explore-system-btn {
  background: var(--theme-color-transparent);
  border: 1px solid var(--theme-border);
  color: white;
  padding: 12px 24px;
  margin-top: 15px;
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.3s ease;
  width: 100%;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: bold;
  font-size: 12px;
}

.explore-system-btn:hover {
  background: var(--theme-color-hover);
  transform: translateY(-2px);
  box-shadow: 0 2px 8px var(--theme-color-hover);
}

.explore-system-btn:active {
  transform: translateY(0);
}

#view-earth-surface {
  position: fixed !important;
  left: 20px !important;
  top: 120px !important;
  background: var(--theme-color-transparent) !important;
  border: 1px solid var(--theme-border) !important;
  color: white !important;
  padding: 12px 24px !important;
  cursor: pointer !important;
  border-radius: 6px !important;
  transition: all 0.3s ease !important;
  z-index: 1000 !important;
  display: block !important;
  opacity: 1 !important;
  visibility: visible !important;
}

#view-earth-surface:hover {
  background: var(--theme-color-hover) !important;
  transform: translateY(-2px) !important;
  box-shadow: 0 2px 8px var(--theme-color-hover) !important;
}

#view-earth-surface:active {
  transform: translateY(0) !important;
}

.earth-view {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1100;
  background: #000;
}

.earth-view.hidden {
  display: none;
}

#view-black-hole {
  position: fixed !important;
  left: 20px !important;
  top: 170px !important;
  background: var(--theme-color-transparent) !important;
  border: 1px solid var(--theme-border) !important;
  color: white !important;
  padding: 12px 24px !important;
  cursor: pointer !important;
  border-radius: 6px !important;
  transition: all 0.3s ease !important;
  z-index: 1000 !important;
  display: block !important;
  opacity: 1 !important;
  visibility: visible !important;
}

#view-black-hole:hover {
  background: var(--theme-color-hover) !important;
  transform: translateY(-2px) !important;
  box-shadow: 0 2px 8px var(--theme-color-hover) !important;
}

#view-black-hole:active {
  transform: translateY(0) !important;
}

.black-hole-view {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1100;
  background: #000;
}

.black-hole-view.hidden {
  display: none;
}

.star-info-panel {
  position: fixed;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.8);
  border: 1px solid var(--theme-border);
  border-radius: 10px;
  padding: 20px;
  color: white;
  width: 300px;
  z-index: 1200;
  background: var(--theme-color-transparent);
  border: 1px solid var(--theme-border);
}

.star-info-panel.hidden {
  display: none;
}

#close-earth-view {
  position: fixed;
  top: 20px;
  right: 20px;
  background: var(--theme-color-transparent);
  border: 1px solid var(--theme-border);
  color: white;
  padding: 12px 24px;
  border-radius: 6px;
  cursor: pointer;
  z-index: 1201;
}

#close-earth-view:hover {
  background: var(--theme-color-hover);
  transform: translateY(-2px);
  box-shadow: 0 2px 8px var(--theme-color-hover);
}

.fictional-tag, .real-tag {
  padding: 4px 8px;
  border-radius: 4px;
  margin-top: 10px;
  font-weight: bold;
  text-align: center;
}

.fictional-tag {
  background: rgba(255, 100, 100, 0.3);
  border: 1px solid #ff6464;
  color: #ff6464;
}

.real-tag {
  background: rgba(100, 255, 100, 0.3);
  border: 1px solid #64ff64;
  color: #64ff64;
}

.day-sky {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, #87CEEB, #B0E2FF);
  opacity: 0;
  transition: opacity 1s ease;
}

.night-sky {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, #000022, #002244);
  opacity: 0;
  transition: opacity 1s ease;
}

.sun {
  position: absolute;
  width: 100px;
  height: 100px;
  background: radial-gradient(circle at center, 
    #FDB813, #FFEF00);
  border-radius: 50%;
  box-shadow: 0 0 50px #FDB813;
  transition: transform 0.5s ease;
}

.moon {
  position: absolute;
  width: 80px;
  height: 80px;
  background: radial-gradient(circle at center, 
    #F4F6F0, #E8E9E7);
  border-radius: 50%;
  box-shadow: 0 0 30px rgba(244, 246, 240, 0.5);
  transition: transform 0.5s ease;
}

.cloud {
  position: absolute;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 20px;
  filter: blur(5px);
  transition: transform 0.3s ease;
}

.datetime-display {
  position: fixed;
  top: 20px;
  left: 20px;
  background: rgba(0, 0, 0, 0.8);
  border: 1px solid var(--theme-border);
  border-radius: 6px;
  padding: 10px 20px;
  color: white;
  font-size: 16px;
  z-index: 1201;
  background: var(--theme-color-transparent);
  border: 1px solid var(--theme-border);
}

.star {
  animation: starGlow 2s infinite alternate;
}

@keyframes starGlow {
  from {
    filter: drop-shadow(0 0 2px rgba(255, 255, 255, 0.8))
           drop-shadow(0 0 4px rgba(255, 255, 255, 0.6));
  }
  to {
    filter: drop-shadow(0 0 6px rgba(255, 255, 255, 0.9))
           drop-shadow(0 0 8px rgba(255, 255, 255, 0.7));
  }
}

#toggle-planet-builder {
  position: fixed;
  top: 70px;
  left: 20px;
  z-index: 1001;
  background: var(--theme-color-transparent);
  border: 1px solid var(--theme-border);
  color: white;
  padding: 12px 24px;
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.3s ease;
  display: block !important;
}

#toggle-planet-builder:hover {
  background: var(--theme-color-hover);
  transform: translateY(-2px);
  box-shadow: 0 2px 8px var(--theme-color-hover);
}

#dwarf-locator {
  position: static;
  transform: none;
  margin-bottom: 5px;
}

#dwarf-locator-container {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1001;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

#dwarf-dropdown {
  background: var(--theme-color-transparent);
  border: 1px solid var(--theme-border);
  color: white;
  padding: 10px;
  border-radius: 6px;
  cursor: pointer;
  width: 200px;
  transition: all 0.3s ease;
}

#dwarf-dropdown:not(.hidden) {
  display: block;
}

#dwarf-dropdown option {
  background: rgba(0, 0, 0, 0.8);
  color: white;
  padding: 5px;
}

#dwarf-dropdown:hover {
  background: var(--theme-color-hover);
}

.dwarf-indicator {
  position: fixed;
  padding: 3px 8px;
  background: rgba(74, 255, 158, 0.3);
  border: 1px solid #4aff9e;
  color: white;
  border-radius: 4px;
  pointer-events: auto;
  z-index: 1000;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.dwarf-indicator:hover {
  background: rgba(74, 255, 158, 0.5);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(74, 255, 158, 0.4);
}

.hdr-panel {
  margin-top: 20px;
  padding: 15px;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 8px;
  border: 1px solid var(--theme-border);
  color: white;
  transition: all 0.3s ease;
}

.hdr-panel h3 {
  color: var(--theme-color);
  margin-bottom: 15px;
  font-size: 16px;
}

.hdr-option {
  margin: 15px 0;
  opacity: 0;
  transform: translateY(10px);
  animation: fadeInUp 0.3s forwards;
}

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

.hdr-option label {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.hdr-option label:hover {
  color: var(--theme-color);
}

.hdr-option input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--theme-color);
}

.hdr-option input[type="range"] {
  width: 100%;
  margin-top: 8px;
  accent-color: var(--theme-color);
}

.hdr-option select {
  width: 100%;
  padding: 8px;
  background: rgba(74, 158, 255, 0.1);
  border: 1px solid var(--theme-border);
  border-radius: 4px;
  color: white;
  cursor: pointer;
  transition: all 0.2s ease;
}

.hdr-option select:hover {
  background: rgba(74, 158, 255, 0.2);
}

.hdr-checkbox {
  position: relative;
  display: inline-block;
  width: 40px;
  height: 20px;
}

.hdr-checkbox input {
  opacity: 0;
  width: 0;
  height: 0;
}

.hdr-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(74, 158, 255, 0.2);
  transition: .4s;
  border-radius: 20px;
  border: 1px solid var(--theme-border);
}

.hdr-slider:before {
  position: absolute;
  content: "";
  height: 14px;
  width: 14px;
  left: 3px;
  bottom: 2px;
  background-color: white;
  transition: .4s;
  border-radius: 50%;
}

input:checked + .hdr-slider {
  background-color: var(--theme-color);
}

input:checked + .hdr-slider:before {
  transform: translateX(20px);
}

.hdr-section {
  margin-top: 15px;
  padding-top: 15px;
  border-top: 1px solid rgba(74, 158, 255, 0.3);
  animation: fadeIn 0.3s forwards;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.moon-fields {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--theme-border);
  border-radius: 6px;
  padding: 15px;
  margin: 10px 0;
}

.moon-fields h4 {
  color: var(--theme-color);
  margin: 0 0 10px 0;
  font-size: 14px;
}

.remove-moon-btn {
  background: rgba(255, 74, 74, 0.3);
  border: 1px solid #ff4a4a;
  width: 100%;
  margin-top: 10px;
}

.remove-moon-btn:hover {
  background: rgba(255, 74, 74, 0.5);
}

#add-moon-btn {
  background: var(--theme-color-transparent);
  border: 1px solid var(--theme-border);
  width: 100%;
  margin: 10px 0;
  padding: 8px;
  cursor: pointer;
  border-radius: 4px;
  transition: all 0.3s ease;
}

#add-moon-btn:hover {
  background: var(--theme-color-hover);
  transform: translateY(-2px);
}

#moons-container {
  max-height: 300px;
  overflow-y: auto;
  margin: 10px 0;
}

#moons-container::-webkit-scrollbar {
  width: 8px;
}

#moons-container::-webkit-scrollbar-track {
  background: rgba(74, 158, 255, 0.1);
  border-radius: 4px;
}

#moons-container::-webkit-scrollbar-thumb {
  background: var(--theme-color);
  border-radius: 4px;
}

#moons-container::-webkit-scrollbar-thumb:hover {
  background: #357acc;
}

:root {
  --theme-color: #4a9eff; /* Default blue */
  --theme-color-hover: rgba(74, 158, 255, 0.5);
  --theme-color-transparent: rgba(74, 158, 255, 0.3);
  --theme-border: #4a9eff;
}

.theme-selector {
  margin-top: 20px;
  padding: 15px;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 8px;
  border: 1px solid var(--theme-border);
}

.theme-selector h3 {
  color: var(--theme-border);
  margin-bottom: 10px;
  font-size: 16px;
}

.theme-buttons {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.theme-btn {
  padding: 8px;
  border-radius: 4px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all 0.3s ease;
}

.theme-btn.active {
  border-color: #fff;
  transform: scale(1.05);
}

.theme-blue { background: #4a9eff; }
.theme-black { background: #2c2c2c; }
.theme-pink { background: #ff69b4; }
.theme-red { background: #ff4a4a; }
.theme-green { background: #4aff9e; }
.theme-white { background: #ffffff; color: #000; }
.theme-purple { background: #9b4aff; }

#custom-systems-button-container {
  position: fixed;
  top: 120px; /* Positioned below dwarf locator */
  left: 50%;
  transform: translateX(-50%);
  z-index: 1001;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

#custom-systems-button {
  position: fixed !important;
  left: 20px !important;
  top: 220px !important; /* Positioned below black hole view button */
  background: var(--theme-color-transparent) !important;
  border: 1px solid var(--theme-border) !important;
  color: white !important;
  padding: 12px 24px !important;
  cursor: pointer !important;
  border-radius: 6px !important;
  transition: all 0.3s ease !important;
  z-index: 1000 !important;
  display: block !important;
  opacity: 1 !important;
  visibility: visible !important;
  white-space: nowrap !important;
}

#custom-systems-button:hover {
  background: var(--theme-color-hover) !important;
  transform: translateY(-2px) !important;
  box-shadow: 0 2px 8px var(--theme-color-hover) !important;
}

#custom-systems-modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(0, 0, 0, 0.95);
  padding: 30px;
  border-radius: 15px;
  text-align: center;
  z-index: 2000;
  max-width: 500px;
  width: 90%;
}

#custom-systems-modal.hidden {
  display: none;
}

.custom-systems-content {
  position: relative;
}

.custom-systems-content h2 {
  color: var(--theme-color);
  margin-bottom: 20px;
  text-align: center;
}

.custom-systems-options {
  display: flex;
  gap: 15px;
  margin-bottom: 20px;
  justify-content: center;
}

.custom-systems-options button {
  flex: 1;
  max-width: 200px;
}

.custom-systems-info {
  background: rgba(0, 0, 0, 0.3);
  border-radius: 6px;
  padding: 15px;
}

.custom-systems-info p {
  color: white;
  margin-bottom: 10px;
}

.custom-systems-info ul {
  list-style-type: none;
  padding: 0;
}

.custom-systems-info li {
  color: #ccc;
  margin-bottom: 8px;
  padding-left: 20px;
  position: relative;
}

.custom-systems-info li:before {
  content: "•";
  color: var(--theme-color);
  position: absolute;
  left: 0;
}

.custom-system-view {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #000;
  z-index: 1100;
}

.return-main-system {
  position: fixed !important;
  left: 20px !important;
  top: 20px !important;
  background: var(--theme-color-transparent) !important;
  border: 1px solid var(--theme-border) !important;
  color: white !important;
  padding: 12px 24px !important;
  border-radius: 6px !important;
  cursor: pointer !important;
  z-index: 1000 !important;
  transition: all 0.3s ease !important;
  white-space: nowrap !important;
  width: auto !important;
}

.return-main-system:hover {
  background: var(--theme-color-hover) !important;
  transform: translateY(-2px) !important;
  box-shadow: 0 2px 8px var(--theme-color-hover) !important;
}

.galaxy-info-panel {
  position: fixed;
  right: 20px;
  top: 20px;
  background: var(--theme-color-transparent);
  border: 1px solid var(--theme-border);
  border-radius: 10px;
  padding: 20px;
  color: white;
  width: 300px;
  z-index: 1000;
  max-width: 90%;
}

.galaxy-info-panel h2 {
  color: var(--theme-color);
  margin-bottom: 15px;
  font-size: 24px;
}

.galaxy-info-panel .galaxy-stats {
  margin: 15px 0;
  padding-top: 15px;
  border-top: 1px solid rgba(74, 158, 255, 0.3);
}

.galaxy-settings {
  margin-top: 20px;
  padding-top: 15px;
  border-top: 1px solid rgba(74, 158, 255, 0.3);
}

.galaxy-settings h3 {
  color: var(--theme-color);
  margin-bottom: 10px;
  font-size: 18px;
}

.setting-group {
  margin: 15px 0;
}

.setting-group label {
  display: block;
  margin-bottom: 5px;
  color: #fff;
}

.setting-group input[type="range"] {
  width: 100%;
  margin: 5px 0;
}

.color-pickers {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 5px;
  margin-top: 5px;
}

.color-pickers input[type="color"] {
  width: 100%;
  height: 30px;
  padding: 0;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

.galaxy-info-panel .return-main-system {
  width: 100%;
  margin-top: 20px;
  padding: 10px;
  background: var(--theme-color-transparent);
  border: 1px solid var(--theme-border);
  color: white;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.galaxy-info-panel .return-main-system:hover {
  background: var(--theme-color-hover);
  transform: translateY(-2px);
  box-shadow: 0 2px 8px var(--theme-color-hover);
}

.galaxy-info-panel p {
  margin-bottom: 10px;
  line-height: 1.5;
}

.system-type-button {
  background: var(--theme-color-transparent);
  border: 1px solid var(--theme-border);
  color: white;
  padding: 15px 30px;
  margin: 10px;
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.3s ease;
}

.system-type-button:hover {
  background: var(--theme-color-hover);
  transform: translateY(-2px);
  box-shadow: 0 2px 8px var(--theme-color-hover);
}

.simulation-btn {
  position: relative;
  width: 100%;
  margin: 15px 0;
  padding: 12px 24px;
  background: var(--theme-color-transparent);
  border: 1px solid var(--theme-border);
  color: white;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: bold;
  font-size: 14px;
  z-index: 1000;
}

.simulation-btn:hover {
  background: var(--theme-color-hover);
  transform: translateY(-2px);
  box-shadow: 0 2px 8px var(--theme-color-hover);
}

.simulation-btn:active {
  transform: translateY(0);
}

.simulation-menu {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(0, 0, 0, 0.95);
  padding: 30px;
  border-radius: 15px;
  border: 1px solid var(--theme-color);
  color: white;
  text-align: center;
  z-index: 2000;
  min-width: 300px;
}

.simulation-menu.hidden {
  display: none;
}

.simulation-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.close-sim-menu {
  cursor: pointer;
  font-size: 24px;
  color: var(--theme-color);
  transition: all 0.3s ease;
}

.close-sim-menu:hover {
  transform: scale(1.2);
  color: white;
}

.simulation-options {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.simulation-option {
  background: var(--theme-color-transparent);
  border: 1px solid var(--theme-border);
  color: white;
  padding: 15px 30px;
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.3s ease;
}

.simulation-option:hover {
  background: var(--theme-color-hover);
  transform: translateY(-2px);
  box-shadow: 0 2px 8px var(--theme-color-hover);
}

.simulation-option.disabled {
  opacity: 1;
  cursor: pointer;
}

.simulation-option.disabled::after {
  display: none;
}

.simulation-view {
  background: #000;
}

.simulation-view .return-main-system {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 1200;
}

.warp-controls {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--theme-color-transparent);
  border: 1px solid var(--theme-border);
  padding: 15px;
  border-radius: 10px;
  color: white;
  text-align: center;
  z-index: 1200;
}

.warp-controls input[type="range"] {
  width: 200px;
  margin: 10px 0;
}

.warp-controls label {
  display: block;
  font-size: 14px;
  margin-bottom: 5px;
}

.mobile-controls {
  position: fixed;
  bottom: 50px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2000;
  padding: 15px;
  touch-action: none;
  pointer-events: all;
  width: 200px;
  height: 200px;
  display: none;
}

.mobile-controls.active {
  display: block;
}

.joystick-container {
  width: 100%;
  height: 100%;
  touch-action: none;
}

.joystick-base {
  width: 150px;
  height: 150px;
  background: rgba(74, 158, 255, 0.2);
  border: 2px solid var(--theme-color);
  border-radius: 50%;
  position: relative;
  cursor: pointer;
  touch-action: none;
  margin: 0 auto;
}

.joystick-handle {
  width: 60px;
  height: 60px;
  background: rgba(74, 158, 255, 0.4);
  border: 2px solid var(--theme-color);
  border-radius: 50%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  cursor: pointer;
  pointer-events: none;
}

.control-row {
  display: flex;
  justify-content: center;
  gap: 10px;
}

.control-row button {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--theme-color-transparent);
  border: 1px solid var(--theme-border);
  color: white;
  font-size: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  touch-action: none;
}

.control-row button:active {
  background: var(--theme-color-hover);
  transform: scale(0.95);
}

#control-ship {
  width: 100%;
  margin-bottom: 15px;
  padding: 12px 24px;
  background: var(--theme-color-transparent);
  border: 1px solid var(--theme-border);
  color: white;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: bold;
  font-size: 12px;
}

#control-ship:hover {
  background: var(--theme-color-hover);
  transform: translateY(-2px);
  box-shadow: 0 2px 8px var(--theme-color-hover);
}

#control-ship.active {
  background: rgba(255, 74, 74, 0.3);
  border-color: #ff4a4a;
}

.credits-button {
  position: fixed;
  left: 20px;
  top: 20px;
  z-index: 1000;
}

.credits-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.9);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow-y: auto;
}

.credits-modal.hidden {
  display: none;
}

.credits-content {
  background: rgba(0, 0, 0, 0.95);
  padding: 40px;
  border-radius: 15px;
  border: 1px solid var(--theme-color);
  max-width: 600px;
  width: 90%;
  margin: 20px;
  position: relative;
  max-height: 80vh;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--theme-color) rgba(74, 158, 255, 0.1);
}

.credits-content::-webkit-scrollbar {
  width: 8px;
}

.credits-content::-webkit-scrollbar-track {
  background: rgba(74, 158, 255, 0.1);
  border-radius: 4px;
}

.credits-content::-webkit-scrollbar-thumb {
  background: var(--theme-color);
  border-radius: 4px;
}

.credits-content::-webkit-scrollbar-thumb:hover {
  background: #357acc;
}

.credits-title {
  font-family: "Comic Sans MS", cursive;
  font-size: 32px;
  text-align: center;
  color: var(--theme-color);
  margin-bottom: 30px;
}

.credits-section {
  margin-bottom: 30px;
}

.credits-section h2 {
  color: var(--theme-color);
  margin-bottom: 15px;
  font-size: 24px;
}

.credits-section p {
  margin-bottom: 15px;
  line-height: 1.6;
}

.credits-section a {
  color: var(--theme-color);
  text-decoration: none;
  transition: all 0.3s ease;
}

.credits-section a:hover {
  color: white;
  text-decoration: underline;
}

.credits-logo {
  width: 200px;
  height: auto;
  display: block;
  margin: 0 auto 20px auto;
}

#release-control {
  position: fixed !important;
  left: 20px !important;
  top: 220px !important; 
  background: var(--theme-color-transparent) !important;
  border: 1px solid var(--theme-border) !important;
  color: white !important;
  padding: 12px 24px !important;
  cursor: pointer !important;
  border-radius: 6px !important;
  transition: all 0.3s ease !important;
  z-index: 1001 !important;
  display: none !important;
  opacity: 1 !important;
  visibility: visible !important;
  white-space: nowrap !important;
  width: auto !important;
}

#release-control:hover {
  background: var(--theme-color-hover) !important;
  transform: translateY(-2px) !important;
  box-shadow: 0 2px 8px var(--theme-color-hover) !important;
}

#release-control.active {
  display: block !important;
}

.galaxy-creator {
  margin-top: 20px;
  padding: 15px;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 8px;
  border: 1px solid var(--theme-border);
}

.galaxy-creator h3 {
  color: var(--theme-color);
  margin-bottom: 15px;
  font-size: 16px;
}

.create-galaxy-btn {
  width: 100%;
  margin-top: 10px;
  background: var(--theme-color-transparent);
  border: 1px solid var(--theme-border);
  color: white;
  padding: 12px 24px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: bold;
  font-size: 14px;
}

.create-galaxy-btn:hover {
  background: var(--theme-color-hover);
  transform: translateY(-2px);
  box-shadow: 0 2px 8px var(--theme-color-hover);
}

#galaxy-creator-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
}

#galaxy-creator-modal .modal-content {
  background: rgba(0, 0, 0, 0.95);
  padding: 30px;
  border-radius: 15px;
  border: 1px solid var(--theme-color);
  max-width: 500px;
  width: 90%;
  position: relative;
}

#galaxy-creator-modal h2 {
  color: var(--theme-color);
  margin-bottom: 20px;
  text-align: center;
}

#galaxy-creator-form .form-group {
  margin-bottom: 15px;
}

#galaxy-creator-form label {
  display: block;
  color: white;
  margin-bottom: 5px;
}

#galaxy-creator-form input[type="text"] {
  width: 100%;
  padding: 8px;
  background: rgba(74, 158, 255, 0.1);
  border: 1px solid var(--theme-border);
  border-radius: 4px;
  color: white;
}

#galaxy-creator-form input[type="range"] {
  width: 100%;
  margin-top: 5px;
}

#galaxy-creator-form span {
  color: var(--theme-color);
  margin-left: 10px;
}

.create-btn {
  width: 100%;
  margin-top: 20px;
  padding: 12px;
  background: var(--theme-color-transparent);
  border: 1px solid var(--theme-border);
  color: white;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: bold;
}

.create-btn:hover {
  background: var(--theme-color-hover);
  transform: translateY(-2px);
}

.galaxy-info-panel {
  position: fixed;
  right: 20px;
  top: 20px;
  background: var(--theme-color-transparent);
  border: 1px solid var(--theme-border);
  border-radius: 10px;
  padding: 20px;
  color: white;
  width: 300px;
  z-index: 1000;
  max-width: 90%;
}

.galaxy-info-panel h2 {
  color: var(--theme-color);
  margin-bottom: 15px;
  font-size: 24px;
}

.galaxy-info-panel p {
  margin-bottom: 10px;
  line-height: 1.5;
}

.galaxy-info-panel button {
  width: 100%;
  margin-top: 15px;
}

.return-main-system {
  position: fixed !important;
  left: 20px !important;
  top: 20px !important;
  background: var(--theme-color-transparent) !important;
  border: 1px solid var(--theme-border) !important;
  color: white !important;
  padding: 12px 24px !important;
  border-radius: 6px !important;
  cursor: pointer !important;
  z-index: 1000 !important;
  transition: all 0.3s ease !important;
  white-space: nowrap !important;
  width: auto !important;
}

.return-main-system:hover {
  background: var(--theme-color-hover) !important;
  transform: translateY(-2px) !important;
  box-shadow: 0 2px 8px var(--theme-color-hover) !important;
}

.nuke-ui-container {
  position: fixed;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: #2c2c2c;
  padding: 20px;
  border-radius: 10px;
  border: 3px solid #444;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
  z-index: 2000;
  transition: opacity 1s ease;
  image-rendering: pixelated;
  font-family: "MS Sans Serif", "Segoe UI", Arial, sans-serif;
}

.retro-screen {
  background: #001100;
  border: 2px solid #444;
  padding: 15px;
  margin-bottom: 20px;
  font-family: "Courier New", monospace;
  color: #00ff00;
  text-align: center;
  text-shadow: 0 0 5px #00ff00;
  box-shadow: inset 0 0 10px rgba(0, 255, 0, 0.3);
  position: relative;
}

.retro-screen::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: repeating-linear-gradient(
    0deg,
    rgba(0, 255, 0, 0.03),
    rgba(0, 255, 0, 0.03) 1px,
    transparent 1px,
    transparent 2px
  );
  pointer-events: none;
}

.screen-note {
  font-size: 14px;
  margin-bottom: 10px;
  color: #00aa00;
  text-transform: uppercase;
}

.code-display {
  font-size: 24px;
  font-weight: bold;
  letter-spacing: 5px;
  height: 30px;
  animation: blink 1s infinite;
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}

.retro-numpad {
  display: grid;
  gap: 10px;
  background: #404040;
  padding: 15px;
  border: 2px solid #555;
  border-radius: 5px;
  box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.5);
}

.numpad-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.numpad-btn {
  background: linear-gradient(to bottom, #666, #444);
  border: 2px solid #666;
  border-bottom: 3px solid #333;
  color: #fff;
  padding: 15px;
  font-size: 18px;
  font-family: "Courier New", monospace;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.1s ease;
  text-align: center;
  border-radius: 5px;
  text-shadow: 0 -1px 0 #000;
  box-shadow: 
    inset 0 1px 1px rgba(255, 255, 255, 0.2),
    0 2px 4px rgba(0, 0, 0, 0.3);
}

.numpad-btn:hover {
  background: linear-gradient(to bottom, #777, #555);
}

.numpad-btn:active {
  background: linear-gradient(to bottom, #444, #333);
  transform: translateY(2px);
  border-bottom-width: 1px;
}

.numpad-btn.clear {
  background: linear-gradient(to bottom, #aa0000, #880000);
  border-color: #990000;
}

.numpad-btn.enter {
  background: linear-gradient(to bottom, #006600, #004400);
  border-color: #005500;
}

.numpad-btn.clear:hover {
  background: linear-gradient(to bottom, #cc0000, #aa0000);
}

.numpad-btn.enter:hover {
  background: linear-gradient(to bottom, #008800, #006600);
}

.numpad-btn.clear:active,
.numpad-btn.enter:active {
  transform: translateY(2px);
  border-bottom-width: 1px;
}