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

body{
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    
    height: 100vh;
    padding: 20px;
    overflow: hidden;
}

h1{
    background: linear-gradient(135deg, #0f2d5a 0%, #1a4d7a 100%);
    color:#ffffff;
    height: 4rem;
    line-height: 3rem;
    font-size: 2.5rem;
    font-weight: 700;
    animation: classicSlideDown 1.2s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: sticky;
    /* top: -35px; */
    z-index: 100;
    letter-spacing: 3px;
    text-shadow: 2px 2px 6px rgba(0,0,0,0.5);
    box-shadow: 0 6px 20px rgba(0,0,0,0.35);
    border-bottom: 5px solid #1abbdb;
    font-family: 'Segoe UI', sans-serif;
    border-radius: 10px;
}

@keyframes classicSlideDown {
    0% {
        transform: translateY(-150%) scaleY(0.8);
        opacity: 0;
        letter-spacing: 10px;
    }
    50% {
        transform: translateY(0px) scaleY(1.05);
        opacity: 0.9;
    }
    100% {
        transform: translateY(0px) scaleY(1);
        opacity: 1;
        letter-spacing: 3px;
    }
}
.choice:hover{
    transform: scale(1.15) translateY(-12px) rotate(5deg);
    transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
    cursor: pointer;
    background: linear-gradient(135deg, rgba(0,212,255,0.25), rgba(0,212,255,0.15));
    box-shadow: 
        0 15px 35px rgba(0,212,255,0.4),
        0 0 20px rgba(0,212,255,0.2),
        inset 0 0 20px rgba(255,255,255,0.1);
    border: 2px solid rgba(0,212,255,0.5);
}


.choice{
    height: 165px;
    width: 165px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 6px 15px rgba(0,0,0,0.25);
    transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
    animation: fadeIn 0.6s ease-out;
    background: rgba(255,255,255,0.08);
    border: 2px solid rgba(255,255,255,0.1);
    position: relative;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}


img{
     height: 150px;
    width: 150px;
    object-fit: cover;
    border-radius: 50%;

}
.choices{
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 50px;
    flex-wrap: wrap;
}

.score-board{
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 50px;
    margin-top: 20px;
    font-size: 1rem;
    flex-wrap: wrap;
    animation: slideUp 0.6s ease-out 0.3s both;
    padding: 25px 40px;
    border-radius: 20px;
}

.score {
    background: linear-gradient(135deg, rgba(255,255,255,0.2), rgba(255,255,255,0.08));
    padding: 15px 25px;
    border-radius: 15px;
    /* backdrop-filter: blur(10px); */
    /* border: 1px solid rgba(255,255,255,0.2); */
    color: #0b0606;
    font-weight: 600;
    font-size: 1rem;
}

#user-score, #computer-score{
    font-size: 4rem;
    animation: pulse 0.6s ease-in-out;
    color: #116374;
    font-weight: 700;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

.msg-container{
    margin-top: 5px;
    display: flex;
    justify-content: center;
    align-items: center;
}

#msg{
    background: linear-gradient(135deg, rgba(0,212,255,0.2), rgba(0,212,255,0.1));
    color:white;
    padding: 18px 35px;
    border-radius: 20px;
    font-size: 1.5rem;
    display: inline-block;
    animation: classicFadeIn 1.2s ease-in-out;
    max-width: 90%;
    box-shadow: 0 8px 24px rgba(0,0,0,0.3);
    letter-spacing: 0.5px;
    border: 2px solid rgba(0,212,255,0.3);
    font-weight: 600;
    backdrop-filter: blur(10px);
}

@keyframes classicFadeIn {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }
    40% {
        opacity: 0.7;
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

#rules{
    margin-top: 30px;
    height: 120px;
    width: 120px;
    object-fit: cover;
    border-radius: 50%;
    box-shadow: 0 10px 16px blue;
    display: block;
    margin: 30px auto 0;
    top:5px;
    animation: rotate 8s linear infinite;
    /* background-color: #f5e6d3; */
    

}

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

/* pause rotation when hovered */
#rules:hover{
    animation-play-state: paused;
    cursor: pointer;
}

/* ===== BALLOON ANIMATION ===== */
.balloon {
    position: fixed;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    pointer-events: none;
    animation: float 2s ease-in forwards;
}

@keyframes float {
    0% {
        opacity: 1;
        transform: translateY(0) translateX(0) scale(1);
    }
    100% {
        opacity: 0;
        transform: translateY(-100vh) translateX(100px) scale(0.5);
    }
}

.congrats-animation {
    animation: popIn 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* ===== RESPONSIVE DESIGN ===== */

/* Tablet/Medium Screens */
@media (max-width: 768px) {
    h1{
        padding: 6px 0;
        font-size: 1.5rem;
    }
    
    .choice{
        height: 110px;
        width: 110px;
    }
    
    img{
        height: 100px;
        width: 100px;
    }
    
    .choices{
        gap: 12px;
        margin: 8px 0;
    }
    
    .score-board{
        gap: 15px;
        margin: 8px 0;
        font-size: 1.1rem;
        padding: 8px 15px;
    }
    
    #user-score, #computer-score{
        font-size: 2rem;
    }
    
    #msg{
        font-size: 1rem;
        padding: 8px 15px;
    }
    
    #rules{
        height: 120px;
        width: 120px;
        margin: 5px auto;
    }
}

/* Mobile Screens */
@media (max-width: 480px) {
    h1{
        padding: 5px 0;
        font-size: 1.3rem;
    }
    
    .choice{
        height: 100px;
        width: 100px;
    }
    
    img{
        height: 90px;
        width: 90px;
    }
    
    .choices{
        gap: 10px;
        margin: 5px 0;
    }
    
    .score-board{
        gap: 12px;
        margin: 5px 0;
        font-size: 0.9rem;
        padding: 6px 10px;
    }
    
    .score{
        padding: 6px 10px;
        border-radius: 10px;
    }
    
    #user-score, #computer-score{
        font-size: 1.8rem;
    }
    
    .msg-container{
        margin: 5px 0;
    }
    
    #msg{
        font-size: 0.9rem;
        padding: 8px 12px;
        border-radius: 10px;
    }
    
    #rules{
        height: 100px;
        width: 100px;
        margin: 3px auto;
    }
}