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

:root {
  --DarkBlueIntroAndSign: hsl(217, 28%, 15%);
  --DarkBlueBg: hsl(218, 28%, 13%);
  --DarkBlueFooter: hsl(216, 53%, 9%);
  --DarkBlueTestimonial: hsl(219, 30%, 18%);

  /* ### Accent */
  --lightgray: rgb(168, 168, 168);
  --Cyan: hsl(176, 68%, 64%);
  --Blue: hsl(198, 60%, 50%);
  --LightRed: hsl(0, 100%, 63%);

  /* ### Neutral */

  --White: hsl(0, 0%, 100%);
}

body {
  font-size: 14px;
  background: var(--DarkBlueBg);
}

a {
  text-decoration: none;
  outline: none;
}

.container {
  width: 90%;
  max-width: 1440px;
  margin: 0 auto;
}

.row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header {
  padding: 1.3rem 0;
}

nav .logo {
  width: 80px;
}

nav {
  display: flex;
}

nav ul {
  flex-basis: 100%;
  display: flex;
  gap: 2rem;
  list-style: none;
}

nav ul li:nth-of-type(1) {
  margin-left: auto;
}

nav ul a {
  text-decoration: none;
  color: var(--lightgray);
  font-size: 0.9rem;
  font-weight: 400;
  transition: 0.5s;
  outline: none;
}

nav ul a:hover,
nav ul a:focus {
  color: var(--White);
}

/* nav */

.hero {
  padding: 3rem 0;
  text-align: center;
}

.hero img {
  width: 50%;
  margin-bottom: 15px;
}

.hero_text {
  color: #fff;
  padding: 0 14rem;
}

.hero_text h2 {
  font-size: 1.5rem;
  margin-bottom: 20px;
}

.hero_text p {
  margin-bottom: 25px;
}

.hero_cta {
  text-decoration: none;
  outline: none;
  color: var(--White);
  background: linear-gradient(45deg, var(--Blue), var(--Cyan));
  padding: 0.5rem 2.5rem;
  border-radius: 50px;
  font-size: 0.9rem;
  transition: 0.5s;
}

.hero_cta:hover,
.hero_cta:focus {
  opacity: 0.7;
}

/* hero */

.content {
  padding: 5rem 0;
  text-align: center;
  color: #fff;
}

.content .col {
  padding: 0 4rem;
  margin: 30px;
}

.content .col h2 {
  font-size: 1.1rem;
  margin: 10px 0;
}

.content .col p {
  font-size: 0.9rem;
  color: var(--lightgray);
  font-weight: 400;
}

/* hero */

.product {
  padding: 2rem 0;
}

.product img {
  width: 45%;
  transition: 0.5s;
}

.product_text {
  width: 50%;
}

.product_text h2 {
  color: var(--White);
  font-size: 2rem;
  margin-bottom: 15px;
}

.product_text p {
  color: var(--lightgray);
  font-weight: 400;
  margin-bottom: 15px;
}

.product_text .span {
  width: 15px;
}

.product_cta:hover img,
.product_cta:focus img {
  filter: grayscale(1);
}

.product_cta {
  text-decoration: none;
  color: var(--Cyan);
  position: relative;
  transition: 0.5s;
  outline: none;
}

.product_cta:hover,
.product_cta:focus {
  color: var(--lightgray);
}

.product_cta:hover:after,
.product_cta:focus:after {
  background: var(--lightgray);
}

.product_cta:after {
  content: "";
  position: absolute;
  margin-bottom: -5px;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--Cyan);
  transition: 0.5s;
}

/* product */

.testimonial {
  padding: 5rem 0;
}

.testimonial .box {
  width: 300px;
  height: 150px;
  padding: 1.5rem;
  margin: 5px;
  background: var(--DarkBlueTestimonial);
}

.testimonial_content p {
  color: #fff;
  font-weight: 400;
  margin-bottom: 15px;
}

.testimonial .box img {
  width: 30px;
  border-radius: 50px;
}

.testimonial .profile {
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  margin-left: -80px;
}

.testimonial .profile h2 {
  font-size: 0.9rem;
  font-weight: 400;
  margin-left: 10px;
}

.testimonial .profile span {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--lightgray);
}
/* testimonial */

.extra {
  text-align: center;
}

.extra .box {
  width: 500px;
  height: 200px;
  background: var(--DarkBlueIntroAndSign);
  padding: 2rem;
  color: #fff;
  transform: translate(45%, 30%);
}

.extra .extra_text h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 15px;
}
.extra .extra_text p {
  font-size: 0.9rem;
  font-weight: 400;
  margin-bottom: 15px;
}

.form {
  display: flex;
  text-decoration: none;
}

.form input {
  outline: none;
  padding: 0.5rem 2rem;
  border-radius: 50px;
  border: none;
}

.form .extra_cta {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--White);
  background: var(--Blue);
  padding: 0.5rem 2rem;
  text-decoration: none;
  border-radius: 50px;
  margin-left: 10px;
  transition: 0.5s;
  outline: none;
  border: none;
  cursor: pointer;
}

.form .extra_cta:hover,
.form .extra_cta:focus {
  opacity: 0.7;
}

/* form */

/* footer  */
.footer {
  padding: 5rem 0;
  background: var(--DarkBlueFooter);
}

.footer .footer_logo {
  width: 100px;
  margin-bottom: 20px;
  margin-top: 20px;
}

.footer .footer_content {
  display: flex;
}

.footer img {
  width: 15px;
  height: 15px;
  margin-right: 15px;
}

.footer_content p {
  color: var(--lightgray);
  max-width: 300px;
}

.footer .box ul a {
  text-decoration: none;
  color: var(--lightgray);
  transition: 0.5s;
}
.footer .box ul {
  display: flex;
  gap: 1rem;
  flex-direction: column;
}

.footer .box ul a:hover,
.footer .box ul a:focus {
  color: var(--White);
}

@media screen and (max-width: 768px) {
  .row {
    flex-direction: column;
  }
  .hero_text {
    padding: 0 2rem;
  }
  .hero img {
    width: 70%;
  }
  /* hero */
  .produtc {
    padding: 0 0 1rem 0;
  }
  .product_text {
    width: 100%;
    text-align: center;
  }
  .product img {
    width: 70%;
  }
  /* product */

  /* extra */
  .extra .box {
    width: 100%;
    padding: 0.5rem;
    transform: translate(0, 0);
  }

  /* form */
  .form {
    flex-direction: column;
    align-items: center;
  }

  .form input {
    margin-bottom: 5px;
    text-align: center;
  }
  .form .extra_cta {
    margin-left: 0;
  }
  /* form */

  .footer {
    text-align: center;
  }

  .footer .footer_content p {
    margin-bottom: 15px;
  }

  .footer .box ul li {
    margin-top: 20px;
  }
}