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

body {
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    background: #0a0536;
    color: rgba(255, 255, 255, 0.87);
    text-align: center;
    margin: 20px auto;
    max-width: 100%;
    padding: 30px 20px;
}

.game-container {
    max-width: 720px;
    margin: 0 auto;
    padding: 18px;
}

h1 {
    margin-bottom: 50px;
}
.rule-container {
    text-align: center;
    margin: 30px auto;
    color: rgb(194, 194, 47);
    border: 1px solid rgb(153, 153, 26);
    padding: 10px 20px;
    width: 100%;
    max-width: 700px;
    background-color: #0f4f74ee; 
    border-radius: 3px;
    border: none; 
}
details p {
    margin-top: 20px;
    margin-bottom: 20px;
}
details ul {
    margin-top: 10px;
    margin-bottom: 30px;
    list-style: none;
}
li {
    margin-top: 5px;
}
.score-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 30px;
    margin: 20px auto;
}
.player-score {
    color: greenyellow;
} 
.computer-score {
    color: red;
}
.options-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    margin: 20px auto;
}
.emoji {
  color: transparent;
 text-shadow: 
  0 0 0 #063f10,     /* base light green */
  0 0 6px #989c99;   /* soft glow */
}
.opt-btn {
    background: rgb(194, 194, 47);
    padding: 12px 20px;
    min-width: 110px;
    font-size: 1rem;
    font-weight: 500;
    border: none;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: transform .12s ease, box-shadow .12s ease, background-color .12s;
    box-shadow: 0 6px 18px rgba(0,0,0,0.15);
    color: rgb(24, 43, 8);
}
.opt-btn:active { 
    transform: translateY(2px);
}


.result-container {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 20px;
    font-size: 1.2rem;
}
#restart-btn {
    display: none;
    margin: 20px auto;
}
button:hover {
    background-color:rgb(219, 219, 72);
}

@keyframes pop {
  0% { transform: scale(.96); opacity: .0 }
  50% { transform: scale(1.03); opacity: 1 }
  100% { transform: scale(1); opacity: 1 }
}

@media (max-width: 480px) {
  h1 { font-size: 1.2rem; margin-bottom: 18px; }
  .rule-container { padding: 8px 12px; font-size: .95rem; }
  .opt-btn { min-width: 90px; padding: 10px 14px; font-size: .95rem; }
}