:root {
    /* Colors */
    --White: #ffffff;

    /* primary colors */
    --Strong-Cyan: hsl(171, 66%, 44%);
    --Light-Blue: hsl(233, 100%, 69%);


    /* Neutral */

    --Dark-Grayish-Blue: hsl(210, 10%, 33%);
    --Grayish-Blue: hsl(203, 7%, 48%);
    --footer-bg:hsl(220, 18%, 97%);

}

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

html p {
    font-size: 18px;

}

body {
    position: relative;
    width: 100%;
    min-height: 100vh;
    font-family: "Bai Jamjuree", serif;
}
h1,h2,h3 {
    font-weight: 600;
    line-height: 1.6;
    color: var(--Dark-Grayish-Blue);
}



 h1 {
    font-size: 2.5rem;
    
}

 h2 {
    font-size: 2rem;

}
h3 {
    font-size: 1.5rem;
}

p {
    font-size: 18px;
    color: var(--Grayish-Blue);
    font-weight: 400;
    line-height: 1.6;

}
ul {
    list-style: none;
}

a {
    text-decoration: none;
}

.container {
    width: 75%;
    margin: auto;
    overflow: hidden;  
    display: flex;  
}

.header {
    width: 100%;

}

.header-bg img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
}

.container.heading {
    max-width: 40rem;
    display: flex;
    justify-content: space-between;
    flex-direction: column;
    align-items: center;
    
    padding: 6rem 0;
    gap: 1.5rem;
}
.header .container.heading {
    gap: 3rem;
}


.container.heading p {
    width: 100%;
    text-align: center;
}

.btn-group {
    display: flex;
    gap: 1rem;
    margin: 2rem 0;
}

.btn {
    width: 14rem;
    height: 3rem;
    border: none;
    cursor: pointer;
    border-radius: 1.5rem;
    color: var(--White);
    font-size: 1rem;
    font-weight: 400;
    letter-spacing: 1px;
    border-bottom: 2px solid rgba(0, 0, 0, 0.3);
    transition: .3s ease;
}
.btn:hover {
    opacity: 70%;
}

.btn.ios {
    background-color: var(--Strong-Cyan);
    box-shadow: 0 15px 15px rgba(38, 186, 164, 0.2);
}

.btn.mac {
    background-color: var(--Light-Blue);
    box-shadow: 0 15px 15px rgba(97, 115, 255, 0.2);
}
/* Section 1 */
.hero-section {
    display: flex;
    align-items: center;
}
.hero-section img {
    margin-left: -30px;
}
.hero-text {
    display: flex;
    flex-direction: column;
    justify-content: start;
    max-width: 420px;
    height: 100%;
    margin:8rem  6rem;

}
.hero-text p {
    margin-bottom: 3rem;
}

.devices-img {
    display: block;
    width: 50%;
    margin: 4rem auto;
}
/* featuer section  */
.featuer .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}
.featuer .featuer-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    width: 30%;
    text-align: center;
}
.featuer .featuer-item p {
    font-size: 1rem;
}

/* Supporter  */
.container.suporter {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 6rem auto;
}

/* animayion  */

.animate {
    opacity: 0;
    transform: translateY(100px);
    transition: all 1s ease-in-out;
}

.animate.show {
    opacity: 1;
    transform: translateY(0);
}

.animate-left {
    opacity: 0;
    transform: translateX(-100px);
    transition: all 1s ease-in-out;
}

.animate-left.show {
    opacity: 1;
    transform: translateX(0);
}




/* footer */
.footer {
    background-color: var(--footer-bg);
    padding: 3rem 0;
    position: relative;
    width: 100%;
    
}
.footer .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.social-media ul,
.links ul {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.social-media ul {
    gap: 2rem;

}
.links ul {
    width: 600px;
    align-items: start;
    justify-content: start;
    flex-wrap: wrap;

}
.links ul li {
    width: 200px;
    text-align: left;
    padding: .5rem 0;
}
.social-media ul li a,
.links ul li a {
    color:var(--Dark-Grayish-Blue);
    transition: .3s ease;
    
}
.social-media a {
    font-size: 2rem;
    
}
.links ul li a {
    font-size: 18px;
    font-weight: 600;
}
.social-media ul li a:hover, 
.links ul li a:hover {
    color: var(--Strong-Cyan);
}

.attribution {
    position: absolute;
    bottom: 10px;
    right: 30px;
    color: #333;
    font-size: 12px;
    text-align: center;
}

.attribution a {
    color: #09f;
}

/* Media  */

@media screen and (max-width:1200px) {
  

     .container,
     .links ul,
     .btn-group,
     .hero-section {
        flex-direction: column;
    }
    .footer .container {
        align-items: start;
        gap: 1.5rem;
    }
    .hero-section {
        margin-top: 2.5rem;
        margin-bottom: 0;
    }
    .hero-section img,
    .devices-img {
        width: 80%;
        margin: 0 auto;
    }
    .hero-text {
        width: 90%;
        margin-bottom: 0;
    }
    .featuer .featuer-item {
        width: 70%;
    }
    
    .suporter img {
        width: 180px;
        margin: 2rem 20px;
    }
    h1,h2,h3,h3,p {text-align: center;}
    
}
@media screen and (max-width:578px) {
    .footer .container,.links ul {
        align-items: center;
    }
    .links ul li {
        text-align: center;
    }
    .btn-group {
        width: 100%;
    }
    .btn {
        width:100%
    }
    
}