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

ul {
  list-style: none;
}

a {
  text-decoration: none;
}

img {
  width: 100%;
  height: auto;
}

/*==== VARIABLES ===========================*/
:root {
  --header-height: 4.5rem;
  /* font-size: 100% = 16px */
  /* font-size: 100%; */

  /* Colors */
  --hue: 159;
  /* HSL color mode */
  --base-color: hsl(var(--hue) 36% 57%);
  --base-color-second: hsl(var(--hue) 65% 88%);
  --base-color-alt: hsl(var(--hue) 57% 53%);
  --title-color: hsl(var(--hue) 41% 10%);
  --text-color: hsl(0 0% 46%);
  --text-color-light: hsl(0 0% 98%);
  --body-color: hsl(0 0% 98%);

  /* Fonts */
  --title-font-size: 1.875rem;
  --subtitle-font-size: 1rem;

  --title-font: 'Poppins', sans-serif;
  --body-font: 'DM Sans', sans-serif;
}

/*==== BASE ===========================*/

html {
  scroll-behavior: smooth;
}

body {
  font: 400 1rem var(--body-font);
  color: var(--text-color);
  background: var(--body-color);
  -webkit-font-smoothing: antialiased;
}

.title {
  font: 700 var(--title-font-size) var(--title-font);
  color: var(--title-color);
  -webkit-font-smoothing: auto;
}

.button {
  background: var(--base-color);
  color: var(--text-color-light);
  height: 3.5rem; /* 56 / 16 = 3.5*/
  display: inline-flex;
  align-items: center;
  padding: 0 3rem;
  border-radius: 0.25rem;
  font: 500 1rem var(--body-font);
  transition: background 0.3s;
}

.button:hover {
  background: var(--base-color-alt);
}

.divider-1 {
  height: 1px;
  background: linear-gradient(
    270deg,
    hsla(var(--hue), 36%, 57%, 1),
    hsla(var(--hue), 65%, 88%, 0.34)
  );
}

.divider-2 {
  height: 1px;
  background: linear-gradient(
    270deg,
    hsla(var(--hue), 65%, 88%, 0.34),
    hsla(var(--hue), 36%, 57%, 1)
  );
}

/*==== LAYOUT ===========================*/
.section {
  /* 80 / 16 = 5rem */
  padding: calc(5rem + var(--header-height)) 0;
}

.section .tittle {
  margin-bottom: 1rem;
}

.section .subtitle {
  font-size: var(--subtitle-font-size);
}

.section header {
  margin-bottom: 4rem;
}

.section header strong {
  color: var(--base-color);
}

.container {
  margin-left: 1.5rem; /* 24px /16 = 1.5rem */
  margin-right: 1.5rem;
}

.grid {
  display: grid;
  gap: 2rem;
}

/* px to rem -> 72px / 16 = 4.5rem */
/* rem to px -> 16px * 4.5rem = 72px */
#header {
  border-bottom: 1px solid #e4e4e4;
  margin-bottom: 2rem;
  display: flex;

  width: 100%;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 100;
  background-color: var(--body-color);
}

#header.scroll {
  /* background: var(--base-color); */
  box-shadow: 0px 0px 12px rgba(0, 0, 0, 0.1);
}

#header.scroll .logo span {
  /* color: white; */
  transition: color 0.6s;
}

#header.scroll .icon-menu {
  /* color: white; */
  transition: color 0.6s;
}

/*==== LOGO ===========================*/
.logo {
  font: 700 1.3125rem var(--title-font);
  color: var(--title-color);
}

.logo span {
  color: var(--base-color);
}

.logo-alternative span {
  color: var(--body-color);
}

/*==== NAVIGATION ===========================*/
nav {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: var(--header-height);
}

nav ul li {
  text-align: center;
}

nav ul li a {
  transition: color 0.2s;
  position: relative;
}

nav ul li a:hover,
nav ul li a.active {
  color: var(--base-color);
}

nav ul li a::after {
  content: '';
  width: 0%;
  height: 2px;
  background: var(--base-color);

  position: absolute;
  left: 0;
  bottom: -1.5rem;

  transition: width 0.2s;
}

nav ul li a:hover::after,
nav ul li a:active::after {
  width: 100%;
}

nav .menu ul {
  display: none;
}

nav .menu {
  opacity: 0;
  visibility: hidden;
  top: -20rem;
  transition: 0.2s;
}

/* Mostrar menu */
nav.show .menu {
  display: grid;
  place-content: center;

  opacity: 1;
  visibility: visible;

  background: var(--body-color);
  height: 100vh;
  width: 100vw;

  position: fixed;
  top: 0;
  left: 0;
}

nav.show .menu ul {
  display: grid;
}

nav.show ul.grid {
  gap: 4rem;
}

/* Toggle Menu */
.toggle {
  color: var(--base-color);
  font-size: 2rem;
  cursor: pointer;
}

nav .icon-close {
  visibility: hidden;
  opacity: 0;

  position: absolute;

  top: -1.5rem;
  right: 1.5rem;

  transition: 0.2s;
}

/* When click the hamburguer menu, the close icon will be displayed */
nav.show div.icon-close {
  visibility: visible;
  opacity: 1;
  top: 1.5rem;
}

/*==== HOME ===========================*/
#home {
  overflow: hidden;
}

#home .container {
  margin: 0;
}

#home .image {
  position: relative;
}

#home .image::before {
  content: '';
  background-color: var(--base-color-second);
  position: absolute;
  width: 100%;
  height: 100%;
  top: -16.8%; /* *** Steps *** */
  left: 16.7%; /* *** Steps *** */
  z-index: 0;
}

/*==== 
-> Explicacao dos calculos top e left acima mencionados:
-----------------------------------------------------------------------
1)Deslocar o elemento before para cima:
Imagem tem 405px altura em 100%. precisando deslocar 68px para cima. Então 68px é quanto % dos 100%?:

405 - 100%
68  - ??

68 x 100 / 405 = 16.8
-----------------------------------------------------------------------
2)Deslocamento lateral do elemento before:

97 x 100 / 581 = 16.7
====*/

#home .image img {
  position: relative;
  right: 2.93rem;
}

#home .image img,
#home .image::before {
  border-radius: 0.25rem;
}

#home .text {
  margin-left: 1.5rem; /* 24px /16 = 1.5rem */
  margin-right: 1.5rem;
  text-align: center;
}

#home .text h1 {
  margin-bottom: 1rem;
}

#home .text p {
  margin-bottom: 2rem;
}

/*==== ABOUT ===========================*/

#about {
  background: white;
}

#about .container {
  margin: 0;
}

#about .image {
  position: relative;
}

#about .image::before {
  content: '';
  background-color: var(--base-color-second);
  position: absolute;
  width: 100%;
  height: 100%;
  top: -8.3%; /* *** Steps *** */
  left: -33%; /* *** Steps *** */
  z-index: 0;
}

/*==== 
-> Explicacao dos calculos top e left acima mencionados:
-----------------------------------------------------------------------
1)Deslocar o elemento before para cima:
Imagem tem 405px altura em 100%. precisando deslocar 34px para cima. Então 34px é quanto % dos 100%?:

405 - 100%
34  - ??

34 x 100 / 405 = 8.3 %
-----------------------------------------------------------------------
2)Deslocamento lateral do elemento before:

581 - 100%
192  - ??

192 x 100 / 581 = 33 %
====*/

#about .image img {
  position: relative;
}

#about .image img,
#about .image::before {
  border-radius: 0.25rem;
}

#about .text {
  margin-left: 1.5rem; /* 24px /16 = 1.5rem */
  margin-right: 1.5rem;
}

/*==== SERVICES ===========================*/
.cards.grid {
  gap: 1.5rem;
}

.card {
  padding: 3.625rem 2rem;
  box-shadow: 0px 0px 12px rgba(0, 0, 0, 0.08);
  border-bottom: 0.25rem solid var(--base-color);
  border-radius: 0.25rem 0.25rem 0 0;
  text-align: center;
}

.card i {
  display: block;
  margin-bottom: 1.5rem;
  font-size: 5rem;
  color: var(--base-color);
}

.card .title {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}

/*==== TESTIMONIALS ===========================*/
#testimonials {
  background: white;
}

#testimonials .container {
  margin-left: 0;
  margin-right: 0;
}

#testimonials header {
  margin-left: 1.5rem;
  margin-right: 1.5rem;
  margin-bottom: 0;
}

#testimonials blockquote {
  padding: 2rem;
  box-shadow: 0px 0px 12px rgba(0, 0, 0, 0.08);
  border-radius: 0.25rem;
}

#testimonials blockquote p {
  position: relative;
  text-indent: 1.875rem;
  margin-bottom: 1.5rem;
  color: var(--title-color);
}

#testimonials blockquote p span {
  font: 700 2.5rem 'serif';

  position: absolute;
  top: -0.375rem;
  left: -1.875rem;
  color: var(--base-color);
}

#testimonials cite {
  display: flex;
  align-items: center;
  font-style: normal;
  color: rgb(117, 117, 117);
}

#testimonials cite img {
  width: 2rem;
  height: 2rem;
  object-fit: cover;
  clip-path: circle();
  margin-right: 0.5rem;
}

/*==== SWIPER ===========================*/
.swiper-slide {
  height: auto;
  padding: 4rem 1rem;
}

.swiper-pagination-bullet-active {
  background: var(--base-color);
}

/*==== CONTACT ===========================*/
#contact .grid {
  gap: 4rem;
}

#contact .text p {
  margin-bottom: 2rem;
}

#contact .button i,
#contact ul li i {
  font-size: 1.5rem;
  padding-right: 0.625rem;
}

#contact ul.grid {
  gap: 2rem;
}

#contact ul li {
  display: flex;
  align-items: center;
}

#contact ul li i {
  color: var(--base-color);
}

/*==== FOOTER ===========================*/
footer {
  background: var(--base-color);
}

footer.section {
  padding: 4rem 0;
}

footer .brand a.logo {
  display: inline-block;
  margin-bottom: 1.5rem;
}

footer .brand p {
  color: var(--text-color-light);
  margin-bottom: 0.75rem;
}

footer .social {
  display: grid;
  grid-auto-flow: column;
  width: fit-content;
}

footer i {
  font-size: 1.5rem;
  color: var(--text-color-light);
}

footer .social a {
  display: inline-block;
  margin-right: 2rem;
  transition: 0.3s;
}

footer .social a:hover {
  transform: translateY(-8px);
}

/*==== BACK-TO-TOP ===========================*/
.back-to-top {
  background: var(--base-color);
  color: var(--text-color-light);

  position: fixed;
  right: 1rem;
  bottom: 1rem;

  padding: 0.5rem;
  clip-path: circle();

  font-size: 1.5rem;
  line-height: 0;

  visibility: hidden;
  opacity: 0;

  transition: 0.3s;
  transform: translateY(100%);
}

.back-to-top.show {
  visibility: visible;
  opacity: 1;
  transform: translateY(0);
}

/*==== MEDIA QUERIES ===========================*/

/* extra large devices: >= 1200 */
@media (min-width: 1200px) {
  /* reusable classes */

  .container {
    max-width: 1120px;
    margin-left: auto;
    margin-right: auto;
  }

  .section {
    padding: 10rem 0;
  }

  .section header,
  #testimonials header {
    max-width: 32rem;
    text-align: center;
    margin-left: auto;
    margin-right: auto;
  }

  .button {
    height: 3.125rem;
  }

  /* navigation */
  nav .menu {
    opacity: 1;
    visibility: visible;
    top: 0;
  }

  nav .menu ul {
    display: flex;
    gap: 2rem;
  }

  nav .menu ul li a.title {
    font: 400 1rem var(--body-font);
    font-weight: bold;
    -webkit-font-smoothing: antialiased;
  }

  nav .menu ul li a.title.active {
    font-weight: bold;
    -webkit-font-smoothing: auto;
  }

  nav .icon-menu {
    display: none;
  }

  /* layout */
  main {
    margin-top: var(--header-height);
  }

  /* home */
  #home .container {
    grid-auto-flow: column;
    justify-content: space-between;
    margin: 0 auto;
  }

  #home .image {
    order: 1;
  }

  #home .text {
    order: 0;
    max-width: 24rem;
    text-align: left;
    margin-left: 0;
  }

  /* about */
  #about .container {
    grid-auto-flow: column;
    margin: 0 auto;
  }

  #about .text {
    margin-left: auto;
    margin-right: auto;
  }

  /* services */
  .cards {
    grid-template-columns: 1fr 1fr 1fr;
  }

  .card {
    padding-left: 3rem;
    padding-right: 3rem;
  }

  /* testimonials */
  #testimonials .container {
    margin-left: auto;
    margin-right: auto;
  }

  /* conctact */
  #contact .container {
    grid-auto-flow: column;
    align-items: center;
  }

  #contact .container .text {
    max-width: 25rem;
  }

  /* footer */
  footer.section {
    padding: 3.75rem 0;
  }

  footer .container {
    grid-auto-flow: column;
    align-items: center;
    justify-content: space-between;
  }

  footer .logo {
    font-size: 2.25rem;
  }
}

/* large devices: >= 1023 */
@media (min-width: 1023px) {
}

/* large devices: >= 992 */
@media (min-width: 992px) {
  :root {
    --title-font-size: 2.25rem;
    --subtitle-font-size: 1.125rem;
  }
}

/* medium devices: >= 767 */
@media (min-width: 767px) {
}