:root {
  --rich-black-fogra-29: hsl(222, 44%, 8%);
  --middle-blue-green_40: hsla(174, 64%, 71%, 0.4);
  --midnight-green: hsl(186, 100%, 19%);
  --midnight-green_a25: hsla(186, 100%, 19%, 0.25);
  --independece: hsl(236, 14%, 39%);
  --verdigris: hsl(182, 100%, 35%);
  --ming: hsl(186, 72%, 24%);
  --space-cadet: hsla(226, 45%, 24%);
  --eerie-black: hsl(0, 0%, 13%);
  --alice-blue: hsl(187, 25%, 94%);
  --gray-web: hsl(0, 0%, 50%);
  --gainsboro: hsl(0, 0%, 87%);
  --white: hsl(0, 0%, 100%);
  --white_a20: hsla(0, 0%, 100%, 0.2);
  --white_a10: hsla(0, 0%, 100%, 0.1);
  --black: hsl(0, 0%, 0%);

  --ff-oswald: 'Oswald', sans-serif;
  --ff-rubik: 'Rubik', sans-serif;
  
  --headline-lg: 4rem;
  --headline-md: 3rem;
  --headline-sm: 2rem;
  --title-lg: 1.8rem;
  --title-md: 1.5rem;
  --title-sm: 1.4rem;
  
  --fw-500: 500;
  --fw-700: 700;

  --section-padding: 120px;

  --shadow-1: 0px 2px 20px hsla(209, 36%, 72%, 0.2);
  --shadow-2: 0 4px 16px hsla(0, 0%, 0%, 0.06);

  --radius-circle: 50%;
  --radius-12: 12px;
  --radius-6: 6px;
  --radius-4: 4px;

  --transition-1: 0.25s ease;
  --transition-2: 0.5s ease;
  --transition-3: 1s ease;
  --cubic-in: cubic-bezier(0.51, 0.03, 0.64, 0.28);
  --cubic-out: cubic-bezier(0.05, 0.83, 0.52, 0.97);
}

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

li { list-style: none; }

a,
img,
span,
time,
input,
button,
ion-icon { display: block; }

a {
  color: inherit;
  text-decoration: none;
}

img { height: auto; }

input,
button {
  background: none;
  border: none;
  font: inherit;
}

input {
  width: 100%;
  outline: none;
}

button { cursor: pointer; }

ion-icon { pointer-events: none; }

address { font-style: normal; }

html {
  font-size: 10px;
  font-family: var(--ff-rubik);
  scroll-behavior: smooth;
}

body {
  background-color: var(--white);
  font-size: 1.6rem;
  color: var(--independece);
  line-height: 1.8;
  overflow: hidden;
}

body.loaded { overflow-y: visible; }

body.nav-active { overflow: hidden; }

.container { padding-inline: 16px; }

.headline-lg {
  font-size: var(--headline-lg);
  color: var(--white);
  font-weight: var(--fw-500);
  line-height: 1.2;
}

.headline-md {
  font-size: var(--headline-md);
  font-weight: var(--fw-700);
}

.headline-lg,
.headline-md { font-family: var(--ff-oswald); }

.headline-md,
.headline-sm { line-height: 1.3; }

.headline-md,
.headline-sm { color: var(--midnight-green); }

.headline-sm { font-size: var(--headline-sm); }

.title-lg { font-size: var(--title-lg); }

.title-md { font-size: var(--title-md); }

.title-sm { font-size: var(--title-sm); }

.social-list { display: flex; }

.section { padding-block: var(--section-padding); }

.has-before,
.has-after {
  position: relative;
  z-index: 1;
}

.has-before::before,
.has-after::after {
  content: "";
  position: absolute;
}

.btn {
  background-color: var(--verdigris);
  color: var(--white);
  font-weight: var(--fw-700);
  padding: 12px 36px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-radius: var(--radius-6);
  overflow: hidden;
}

.btn::before {
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background-color: var(--eerie-black);
  border-radius: var(--radius-6);
  transition: var(--transition-2);
  z-index: -1;
}

.btn:is(:hover, :focus-visible)::before { transform: translateX(100%); }

.w-100 { width: 100%; }

.grid-list {
  display: grid;
  gap: 40px 28px;
}

.text-center { text-align: center; }

[data-reveal] {
  opacity: 0;
  transition: var(--transition-2);
}

[data-reveal].revealed { opacity: 1; }

[data-reveal="bottom"] { transform: translateY(50px); }

[data-reveal="bottom"].revealed { transform: translateY(0); }

[data-reveal="left"] { transform: translateX(-50px); }

[data-reveal="right"] { transform: translateX(50px); }

[data-reveal="left"].revealed,
[data-reveal="right"].revealed { transform: translateX(0); }

.preloader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: var(--verdigris);
  display: grid;
  place-items: center;
  z-index: 6;
  transition: var(--transition-1);
}

.preloader.loaded {
  visibility: hidden;
  opacity: 0;
}

.preloader .circle {
  width: 50px;
  height: 50px;
  border: 4px solid var(--white);
  border-radius: var(--radius-circle);
  border-block-start-color: transparent;
  animation: rotate360 1s ease infinite;
}

@keyframes rotate360 {
  0% { transform: rotate(0); }
  100% { transform: rotate(1turn); }
}

.header .btn { display: none; }

.header {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  padding-block: 16px;
  z-index: 4;
}

.header.active {
  position: fixed;
  background-color: var(--rich-black-fogra-29);
  animation: headerActive 0.5s ease forwards;
}

@keyframes headerActive {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(0); }
}

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

.nav-open-btn {
  color: var(--white);
  font-size: 4rem;
}

.navbar,
.overlay {
  position: fixed;
  top: 0;
  width: 100%;
  height: 100vh;
}

.navbar {
  right: -300px;
  max-width: 300px;
  background-color: var(--rich-black-fogra-29);
  z-index: 3;
  transition: 0.25s var(--cubic-in);
  visibility: hidden;
}

.navbar.active {
  transform: translateX(-300px);
  visibility: visible;
  transition: 0.5s var(--cubic-out);
}

.navbar-top {
  position: relative;
  padding-inline: 25px;
  padding-block: 55px 100px;
}

.nav-close-btn {
  position: absolute;
  top: 15px;
  right: 20px;
  color: var(--white);
  font-size: 2.8rem;
}

.navbar-list {
  margin-block-end: 30px;
  border-block-end: 1px solid var(--white_a10);
}

.navbar-item { border-block-start: 1px solid var(--white_a10); }

.navbar-link {
  color: var(--white);
  text-transform: uppercase;
  padding: 10px 24px;
}

.social-list {
  justify-content: center;
  gap: 20px;
  color: var(--white);
  font-size: 1.8rem;
}

.overlay {
  right: -100%;
  background-color: var(--black);
  opacity: 0.3;
  visibility: hidden;
  transition: var(--transition-2);
  z-index: 2;
}

.overlay.active {
  transform: translateX(-100%);
  visibility: visible;
}

.hero-banner { display: none; }

.hero {
  background-color: var(--midnight-green);
  --section-padding: 200px;
  background-repeat: no-repeat;
  background-size: cover;
}

.hero-subtitle {
  color: var(--white);
  font-weight: var(--fw-500);
  padding-inline-start: 80px;
}

.hero-subtitle::before {
  top: 50%;
  left: 0;
  width: 60px;
  height: 1px;
  background-color: var(--white);
}

.hero-title { margin-block: 20px 25px; }

.hero-card {
  background-color: var(--white);
  border-radius: var(--radius-12);
  padding: 20px;
}

.hero-card .card-text {
  color: var(--eerie-black);
  border-block-end: 1px solid var(--midnight-green_a25);
  padding-block-end: 12px;
  margin-block-end: 14px;
}

.hero-card .input-wrapper { position: relative; }

.hero-card .input-field {
  color: var(--eerie-black);
  border-block-end: 1px solid var(--gainsboro);
  padding-inline-end: 18px;
}

.hero-card .input-wrapper ion-icon {
  position: absolute;
  top: 50%;
  right: 0;
  transform: translateY(-50%);
  color: var(--verdigris);
}

.hero-card .btn {
  width: 100%;
  justify-content: center;
  margin-block-start: 16px;
}

.service-list {
  padding-block: 60px 30px;
  padding-inline: 25px;
  display: grid;
  gap: 30px;
  border-radius: var(--radius-12);
  margin-block-start: -60px;
  background-color: var(--white);
  box-shadow: var(--shadow-1);
}

.service-card { text-align: center; }

.service-card .card-icon,
.btn-circle {
  max-width: max-content;
  margin-inline: auto;
}

.service-card .card-icon { margin-block-end: 25px; }

.service-card .card-text { margin-block: 20px 15px; }

.service-card .btn-circle {
  color: var(--verdigris);
  font-size: 2rem;
  padding: 18px;
  border-radius: var(--radius-circle);
  box-shadow: var(--shadow-2);
  transition: var(--transition-1);
}

.service-card .btn-circle:is(:hover, :focus-visible) {
  background-color: var(--verdigris);
  color: var(--white);
}

.about { padding-block-end: 0; }

.about .container {
  display: grid;
  gap: 20px;
}

.about .section-text { margin-block: 20px 35px; }

.tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: 20px 15px;
}

.tab-btn {
  background-color: var(--alice-blue);
  color: var(--midnight-green);
  padding: 7px 30px;
  border-radius: var(--radius-6);
  font-weight: var(--fw-700);
}

.tab-btn.active {
  background-color: var(--verdigris);
  color: var(--white);
}

.tab-text {
  color: var(--midnight-green);
  margin-block: 35px;
}

.about-item {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-block-end: 10px;
}

.about-item ion-icon {
  color: var(--verdigris);
  font-size: 2rem;
  flex-shrink: 0;
}

.listing { background-color: var(--alice-blue); }

.listing-card {
  padding: 25px 16px;
  display: flex;
  gap: 20px;
  border: 2px solid var(--middle-blue-green_40);
  border-radius: var(--radius-12);
  transition: var(--transition-1);
}

.listing-card:is(:hover, :focus-visible) { border-color: var(--verdigris); }

.listing-card .card-title {
  margin-block-end: 5px;
  font-family: var(--ff-oswald);
}

.listing-card .card-text { color: var(--midnight-green); }

.blog {
  background-image: linear-gradient(to bottom, var(--alice-blue) 60%, var(--white) 60%);
  padding-block-start: 0;
}

.blog .section-title { margin-block-end: 60px; }

.blog-card {
  padding: 50px 36px;
  border-radius: var(--radius-12);
  border: 2px solid var(--alice-blue);
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
  overflow: hidden;
}

.blog-card::before,
.blog-card::after {
  inset: 0;
  z-index: -1;
  transition: var(--transition-3);
}

.blog-card::before {
  background-color: var(--midnight-green);
  opacity: 0.9;
}

.blog-card::after { background-color: var(--white); }

.blog-card:is(:hover, :focus-within)::after { transform: translateY(100%); }

.blog-card .meta-wrapper {
  display: flex;
  flex-wrap: wrap;
  gap: 5px 20px;
  margin-block-end: 12px;
}

.blog-card .card-meta {
  display: flex;
  align-items: center;
  gap: 5px;
  color: var(--midnight-green);
}

.blog-card .card-meta ion-icon { font-size: 1.8rem; }

.blog-card .card-meta:first-child .span { text-transform: uppercase; }

.blog-card .date {
  color: var(--space-cadet);
  font-weight: var(--fw-700);
  text-transform: uppercase;
  opacity: 0.5;
  margin-block: 16px;
}

.blog-card .btn-text {
  color: var(--verdigris);
  margin-block-start: 12px;
}

.blog-card :is(.card-meta, .card-title, .date, .card-text, .btn-text) {
  transition: var(--transition-2);
}

.blog-card:is(:hover, :focus-within) :is(.card-meta, .card-title, .date, .card-text, .btn-text) {
  color: var(--white);
}

.footer {
  background-color: var(--midnight-green);
  color: var(--white);
  background-size: contain;
  background-position: top right;
  background-repeat: no-repeat;
}

.footer-top {
  display: grid;
  gap: 40px;
  padding-block-end: 60px;
}

.footer-brand {
  background-color: var(--ming);
  padding: 32px;
  border-radius: var(--radius-6);
}

.footer .logo { margin-block-end: 20px; }

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-block-start: 12px;
}

.contact-item .item-icon { font-size: 4rem; }

.contact-link {
  display: inline;
  transition: var(--transition-1);
}

.contact-link:is(:hover, :focus-visible) { color: var(--verdigris); }

.footer-list-title {
  color: var(--white);
  font-weight: var(--fw-700);
  margin-block-end: 20px;
}

.footer .text { opacity: 0.7; }

.footer .address {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-block-start: 20px;
}

.footer .address ion-icon {
  font-size: 4rem;
  flex-shrink: 0;
}

.footer-link {
  margin-block-start: 8px;
  transition: var(--transition-1);
}

.footer-link:is(:hover, :focus-visible) { color: var(--verdigris); }

.footer-form .input-field {
  color: var(--white);
  border: 1px solid var(--white_a20);
  border-radius: var(--radius-4);
  padding: 8px 20px;
}

.footer-form .input-field::placeholder { color: inherit; }

.footer-form .btn {
  width: 100%;
  justify-content: center;
  margin-block: 12px 28px;
}

.footer-bottom {
  padding-block: 32px;
  border-block-start: 1px solid var(--white_a20);
}

.footer-bottom .social-list {
  justify-content: flex-start;
  gap: 8px;
  margin-block-start: 16px;
}

.footer-bottom .social-link {
  font-size: 1.4rem;
  padding: 12px;
  background-color: var(--white_a10);
  border-radius: var(--radius-circle);
  transition: var(--transition-1);
}

.footer-bottom .social-link:is(:hover, :focus-visible) { background-color: var(--verdigris); }

.back-top-btn {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background-color: var(--verdigris);
  color: var(--white);
  padding: 16px;
  font-size: 2rem;
  border-radius: var(--radius-circle);
  transition: var(--transition-1);
  opacity: 0;
  z-index: 3;
}

.back-top-btn:is(:hover, :focus-visible) { background-color: var(--eerie-black); }

.back-top-btn.active {
  transform: translateY(-10px);
  opacity: 1;
}

@media (min-width: 768px) {

  :root {
    --headline-lg: 8rem;
    --headline-md: 4.8rem;

  }

  .container {
    max-width: 750px;
    width: 100%;
    margin-inline: auto;
  }

  .header .btn { display: block; }

  .nav-open-btn { margin-inline-start: auto; }

  .header .container { gap: 40px; }

  .hero-title { line-height: 1; }

  .hero .wrapper {
    display: flex;
    gap: 16px;
  }

  .hero-card .input-wrapper { flex-grow: 1; }

  .hero-card .input-field { height: 100%; }

  .hero-card .btn {
    width: max-content;
    margin-block-start: 0;
  }
  .service-list { grid-template-columns: 1fr 1fr; }

  .about-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }

  .about-banner {
    max-width: max-content;
    margin-inline: auto;
  }

  .listing .grid-list { grid-template-columns: 1fr 1fr; }

  .listing .grid-list > li:first-child { grid-column: 1 / 3; }

  .footer-top { grid-template-columns: 1fr 1fr; }

  .footer-brand { grid-column: 1 / 3; }

  .contact-list {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 24px;
  }

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

  .footer-bottom .social-list { margin-block-start: 0; }

}

@media (min-width: 992px) {

  .container { max-width: 940px; }

  .hero-banner {
    display: block;
    max-width: max-content;
  }

  .hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
  .service-list { grid-template-columns: repeat(4, 1fr); }

  .about .container {
    grid-template-columns: 1fr 0.8fr;
    align-items: flex-end;
  }

  .about-content { padding-block-end: var(--section-padding); }

  .about-banner { margin-inline-end: -80px; margin-bottom: 200px; }

  .blog .grid-list { grid-template-columns: 1fr 1fr; }

}

@media (min-width: 1200px) {
  .container { max-width: 1200px; }
  .header { padding-block: 24px; }
  .nav-open-btn,
  .overlay,
  .navbar-top,
  .navbar .social-list { display: none; }

  .navbar,
  .navbar.active,
  .navbar-list {
    all: unset;
    display: block;
  }

  .navbar { margin-inline-start: auto; }

  .navbar-list {
    display: flex;
    gap: 8px;
  }

  .navbar-item { border-block-start: none; }

  .navbar-link {
    --title-md: 1.8rem;
    font-weight: var(--fw-500);
    padding-inline: 16px;
    text-transform: capitalize;
  }

  .hero .container {
    grid-template-columns: 0.8fr 1fr;
    gap: 96px;
  }

  .listing .grid-list { grid-template-columns: repeat(4, 1fr); }

  .blog .grid-list { grid-template-columns: repeat(3, 1fr); }

  .footer { background-size: auto; }

  .footer-top { grid-template-columns: repeat(4, 1fr); }

  .footer-brand {
    grid-column: 1 / 5;
    padding: 28px 56px;
    display: grid;
    grid-template-columns: 0.3fr 1fr;
    align-items: center;
  }

  .footer .logo { margin-block-end: 0; }

  .contact-list { justify-content: space-between; }

  .contact-list::after {
    top: 0;
    left: 50%;
    width: 2px;
    height: 100%;
    background-color: var(--white_a20);
  }
  .contact-item { margin-block-start: 0; }
}