style.css

/* Imports */
@import url('https://fonts.googleapis.com/css2?family=Nunito&display=swap');
@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.2.0/css/all.min.css');

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

html {
  font-size: 62.5%;
}

body {
  font-family: 'Nunito', sans-serif;
  font-weight: 400;
  height: 100vh;
  color: #ddd;
  background: black;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

/* Star Background */
.stars {
  position: absolute;
  width: 100%;
  height: 100%;
  background: transparent;
  z-index: -5;
  overflow: hidden;
}

.star {
  width: 2px;
  height: 2px;
  background: white;
  position: absolute;
  animation: twinkle 5s infinite;
}

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

/* Container for new background elements */
.background-elements {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -10;
  overflow: hidden;
}

/* Common styles for planets */
.planet {
  position: absolute;
  background-size: contain;
  background-repeat: no-repeat;
}

/* Specific planets */
.planet-1 {
  width: 100px;
  height: 100px;
  background-image: url('images/planet-1.png');
  top: 20%;
  left: 10%;
  animation: planetMovement 20s linear infinite;
}

.planet-2 {
  width: 100px;
  height: 100px;
  background-image: url('images/planet-2.png');
  top: 70%;
  left: 80%;
  animation: planetMovement 25s linear infinite reverse;
}
.planet-3 {
  width: 100px;
  height: 100px;
  background-image: url('images/planet-3.jpg');
  top: 90%;
  left: 10%;
  animation: planetMovement 25s linear infinite reverse;
}

/* Common styles for galaxies */
.galaxy {
  position: absolute;
  background-size: contain;
  background-repeat: no-repeat;
}

/* Specific galaxies */
.galaxy-1 {
  width: 100px;
  height: 100px;
  background-image: url('images/galaxy-1.png');
  top: 10%;
  left: 80%;
  animation: galaxyRotation 550s linear infinite;
}

.galaxy-2 {
  width: 50px;
  height: 50px;
  background-image: url('images/galaxy-2.jpg');
  top: 50%;
  left: 20%;
  animation: galaxyRotation 60s linear infinite reverse;
}
.galaxy-3 {
  width: 25px;
  height: 25px;
  background-image: url('images/galaxy-3.jpg');
  top: 2%;
  left: 90%;
  animation: galaxyRotation 30s linear infinite reverse;
}

/* Animations */
@keyframes planetMovement {
  0% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-20px);
  }
  100% {
    transform: translateY(0);
  }
}

@keyframes galaxyRotation {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* Layout */
main {
  position: relative;
  width: 100rem;
  height: 60rem;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(15px);
  box-shadow: 0 3rem 5rem rgba(0, 0, 0, 0.3);
  border-radius: 20px;
  overflow: hidden;
  display: flex;
  animation: fadeIn 1s ease-in-out;
  z-index: 2;
}

@keyframes fadeIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.player {
  flex: 50%;
  padding: 5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: all 0.75s;
}

/* Player Elements */
.name {
  font-size: 4rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 700;
  color: #f8f9fa;
  margin-bottom: 1rem;
  animation: textSlideIn 1s ease-out;
}

.score {
  font-size: 8rem;
  font-weight: 700;
  color: #6c757d;
  margin-bottom: auto;
  animation: textSlideIn 1s ease-out 0.5s;
  animation-fill-mode: backwards;
}

.player--active {
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.2), rgba(0, 0, 0, 0.2));
}

.player--active .name {
  color: #28a745;
}

.player--active .score {
  color: #ffc107;
}

.current {
  background-color: #6c757d;
  opacity: 0.9;
  border-radius: 15px;
  color: #fff;
  width: 65%;
  padding: 2rem;
  text-align: center;
  transition: all 0.75s;
  animation: currentFadeIn 1s ease-in-out;
}

.current-label {
  text-transform: uppercase;
  margin-bottom: 1rem;
  font-size: 1.7rem;
  color: #ddd;
}

.current-score {
  font-size: 3.5rem;
}

@keyframes textSlideIn {
  from { opacity: 0; transform: translateY(-50px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes currentFadeIn {
  from { opacity: 0; transform: translateY(50px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Buttons */
.btn {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  color: #fff;
  background: #343a40;
  border: none;
  font-size: 1.8rem;
  text-transform: uppercase;
  cursor: pointer;
  font-weight: 700;
  transition: all 0.2s;
  padding: 1rem 3rem;
  border-radius: 50rem;
  box-shadow: 0 1.75rem 3.5rem rgba(0, 0, 0, 0.2);
  animation: btnBounce 1s infinite alternate;
  z-index: 2;
}

.btn--new { top: 4rem; }
.btn--roll { top: 39.3rem; }
.btn--hold { top: 46.1rem; }

.btn:active {
  transform: translate(-50%, 3px);
  box-shadow: 0 1rem 2rem rgba(0, 0, 0, 0.15);
}

.btn:focus { outline: none; }

@keyframes btnBounce {
  from { transform: translate(-50%, 0); }
  to { transform: translate(-50%, -10px); }
}

/* Dice */
.dice {
  position: absolute;
  left: 50%;
  top: 16.5rem;
  transform: translateX(-50%);
  height: 10rem;
  box-shadow: 0 2rem 5rem rgba(0, 0, 0, 0.2);
  animation: diceSpin 3s infinite;
  z-index: 2;
}

@keyframes diceSpin {
  from { transform: translateX(-50%) rotate(0); }
  to { transform: translateX(-50%) rotate(360deg); }
}

/* Winner Styling */
.player--winner {
  background-color: #343a40;
  animation: winnerGlow 1.5s infinite alternate;
}

@keyframes winnerGlow {
  from { box-shadow: 0 0 10px #28a745; }
  to { box-shadow: 0 0 20px #28a745; }
}

.player--winner .name {
  color: #28a745;
}

/* Utility Classes */
.hidden { display: none; }

/* Star Movement Animations */
.star:nth-child(1) { animation: twinkle 5s infinite, starMovement1 10s linear infinite; }
.star:nth-child(2) { animation: twinkle 5s infinite, starMovement2 12s linear infinite; }
.star:nth-child(3) { animation: twinkle 5s infinite, starMovement3 15s linear infinite; }
.star:nth-child(4) { animation: twinkle 5s infinite, starMovement4 18s linear infinite; }

@keyframes starMovement1 {
  0% { top: 0; left: 0; transform: translateY(0) translateX(0); }
  100% { top: 100%; left: 100%; transform: translateY(100vh) translateX(100vw); }
}

@keyframes starMovement2 {
  0% { top: 0; left: 100%; transform: translateY(0) translateX(0); }
  100% { top: 100%; left: 0; transform: translateY(100vh) translateX(-100vw); }
}

@keyframes starMovement3 {
  0% { top: 100%; left: 0; transform: translateY(0) translateX(0); }
  100% { top: 0; left: 100%; transform: translateY(-100vh) translateX(100vw); }
}

@keyframes starMovement4 {
  0% { top: 100%; left: 100%; transform: translateY(0) translateX(0); }
  100% { top: 0; left: 0; transform: translateY(-100vh) translateX(-100vw); }
}

/* Controls */
.top-controls {
  position: absolute;
  top: 1rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  background: rgba(0, 0, 0, 0.5);
  padding: 1rem;
  border-radius: 10px;
  z-index: 2;
}

.set-score, .mode-toggle, .difficulty-selector, .btn--music {
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.set-score {
  flex-direction: row;
  background: rgba(0, 0, 0, 0.5);
  padding: 1rem;
  border-radius: 10px;
}

.input-score {
  font-family: inherit;
  font-size: 1.2rem;
  padding: 1rem;
  border: none;
  border-radius: 50rem;
  margin-right: 1rem;
  width: 25rem;
  text-align: center;
  color: #343a40;
  background: #fff;
}

.btn--set-score {
  padding: 1rem 2rem;
  font-size: 1.2rem;
  color: #fff;
  background: #28a745;
  border-radius: 50rem;
  border: none;
  cursor: pointer;
  transition: background-color 0.3s;
}

.btn--set-score:hover {
  background-color: #218838;
}

.btn--music {
  padding: 1rem;
  border-radius: 50%;
  background: #007bff;
  color: white;
  border: none;
  cursor: pointer;
  font-size: 2rem;
}

.btn--music:active {
  background-color: #0056b3;
}
/* Modern Styles for Mode Toggle, Difficulty Selector, and Music Button */

.mode-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  background: rgba(0, 0, 0, 0.5);
  padding: 1rem;
  border-radius: 10px;
}

.mode-toggle .switch {
  position: relative;
  display: inline-block;
  width: 50px;
  height: 26px;
}

.mode-toggle .switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.mode-toggle .slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #ccc;
  transition: .4s;
  border-radius: 26px;
}

.mode-toggle .slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  border-radius: 50%;
  left: 4px;
  bottom: 4px;
  background-color: white;
  transition: .4s;
}

.mode-toggle input:checked + .slider {
  background-color: #28a745;
}

.mode-toggle input:checked + .slider:before {
  transform: translateX(24px);
}

.mode-toggle #mode-label {
  font-size: 1.6rem;
  color: #ddd;
}

.difficulty-selector {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: rgba(0, 0, 0, 0.5);
  padding: 1rem;
  border-radius: 10px;
  gap: 0.5rem;
}

.difficulty-selector label {
  font-size: 1.4rem;
  color: #ddd;
}

.difficulty-selector select {
  font-size: 1.4rem;
  padding: 0.5rem;
  border: none;
  border-radius: 5px;
  background: #fff;
  color: #333;
  box-shadow: 0 1rem 2rem rgba(0, 0, 0, 0.2);
}

.btn--music {
  background: #007bff;
  color: white;
  border: none;
  font-size: 1.6rem;
  padding: 0.8rem 1.6rem;
  border-radius: 50px;
  cursor: pointer;
  transition: background-color 0.3s, box-shadow 0.3s;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0.8rem 1.6rem rgba(0, 0, 0, 0.2);
}

.btn--music:hover {
  background-color: #0056b3;
}

.btn--music:active {
  background-color: #003d7a;
  box-shadow: 0 0.6rem 1.2rem rgba(0, 0, 0, 0.2);
}

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

/* Footer Styles */
footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.8);
  color: #ddd;
  padding: 1rem;
  border-top: 1px solid #333;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.5);
  font-family: Arial, sans-serif;
  transition: background 0.3s;
  z-index: 1000; 
}

footer:hover {
  background: rgba(0, 0, 0, 0.9);
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.footer-btn {
  background: linear-gradient(45deg, #007bff, #00bfff);
  color: #fff;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 30px;
  cursor: pointer;
  font-size: 1rem;
  transition: transform 0.3s, box-shadow 0.3s;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.footer-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.3);
}

.about-section {
  display: none;
  margin-top: 1rem;
  background: rgba(0, 0, 0, 0.7);
  padding: 1rem;
  border-radius: 10px;
  max-width: 80%;
  text-align: center;
  overflow: hidden;
  position: relative;
}

.about-section:before {
  content: '';
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border: 10px solid transparent;
  border-bottom-color: rgba(0, 0, 0, 0.7);
}

.about-section h3 {
  margin: 0 0 0.5rem;
  font-size: 1.25rem;
  color: #fff;
}

.about-section p {
  margin: 0.5rem 0;
  color: #ddd;
}

.about-section a {
  color: #00bfff;
  text-decoration: none;
  font-weight: bold;
}

.about-section a:hover {
  text-decoration: underline;
}

.footer-bottom {
  margin-top: 1rem;
  font-size: 0.9rem;
  text-align: center;
  color: #bbb;
}

/* Expansion Effect */
.about-section.expanded {
  display: block;
  max-height: 300px; 
  opacity: 1;
  transform: scale(1);
  transition: max-height 0.5s ease, opacity 0.5s ease, transform 0.5s ease;
}

.about-section {
  transform: scale(0.9);
  max-height: 0;
  opacity: 0;
  transition: max-height 0.5s ease, opacity 0.5s ease, transform 0.5s ease;
}