/* RESET */
/* http://meyerweb.com/eric/tools/css/reset/
   v2.0 | 20110126
   License: none (public domain)
*/
html,
body,
div,
h1,
h2,
h3,
p,
a,
a,
em,
img,
ul,
li,
form,
footer,
header,
nav,
section {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  border: 0;
  font-size: 100%;
  front: inherit;
  vertical-align: baseline;
}
/* HTML5 display-role reset for older browsers */
footer,
header,
nav,
section {
  display: block;
}
body {
  line-height: 1;
}
ul {
  list-style: none;
}
a {
  color: inherit;
  text-decoration: none;
}

/* CSS Start */
:root {
  --var-bg-main: hsl(218, 28%, 13%);
  --var-bg-intro: hsl(217, 28%, 15%);
  --var-bg-footer: hsl(216, 53%, 9%);
  --var-bg-testimonials: hsl(219, 30%, 18%);
  --var-accent-cyan: hsl(176, 68%, 64%);
  --var-accent-blue: hsl(198, 60%, 50%);
  --var-accent-error: hsl(0, 100%, 63%);
  --var-white: hsl(0, 0%, 100%);
  --var-off-white: hsl(0, 0%, 80%);
}

html {
  height: 100%;
  min-height: 100vh;
  font-size: 62.5%;
}

body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  font-family: "Open Sans", sans-serif;
  font-size: 1.6rem;
  background-color: var(--var-bg-main);
  color: var(--var-white);
}

.landing-view {
  height: 100vh;
  min-height: 700px;
  max-height: 1200px;
  padding: 50px 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: var(--var-bg-intro);
  background-image: url("images/bg-curvy-desktop.svg");
  background-repeat: no-repeat;
  background-position: bottom;
  background-size: 100%;
}

main {
  background: var(--var-bg-main);
}

footer {
  background: var(--var-bg-footer);
}

header,
section,
.footer-content {
  width: 80%;
  max-width: 1000px;
  min-width: 200px;
  margin: 0 auto;
}

section {
  padding: 100px 0;
}

p {
  margin-bottom: 0;
  line-height: 1.5;
}

a {
  border-bottom: 1px solid transparent;
  transition: color 125ms linear, border-bottom-color 125ms linear;
}

a:hover {
  color: var(--var-accent-cyan);
  border-bottom: 1px solid var(--var-accent-cyan);
  transition: color 125ms linear, border-bottom-color 125ms linear;
}

a.header-logo,
a.header-logo:hover,
a.btn,
a.btn:hover {
  color: var(--var-white);
}

a.header-logo,
a.header-logo:hover,
.footer-social a,
.footer-social a:hover {
  border: none;
}

h2 {
  font-family: "Raleway", sans-serif;
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.5;
}

h3 {
  margin: 15px;
  font-family: "Raleway", sans-serif;
  font-weight: 700;
  font-size: 1.5rem;
}

.btn {
  height: 50px;
  width: 200px;
  max-width: 100%;
  display: block;
  margin: 0 auto;
  border: none;
  background-color: var(--var-accent-cyan);
  background-image: url("images/button-gradient.svg");
  background-size: cover;
  background-position-x: -200px;
  border-radius: 25px;
  color: var(--var-white);
  font-family: "Raleway", sans-serif;
  font-weight: 700;
  line-height: 50px;
  text-align: center;
  transition: background-position-x 125ms linear;
}

.btn:hover {
  background-position-x: 0;
  transition: background-position-x 125ms linear;
}

.em-link {
  border-bottom: 1px solid var(--var-accent-cyan);
  color: var(--var-accent-cyan);
}

.em-link::after {
  content: url("images/icon-arrow.svg");
  display: inline;
  vertical-align: text-bottom;
}

.em-link:hover {
  border-bottom: 1px solid transparent;
}

/* Header */
.header-container {
  flex-grow: 0;
}

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

.header-logo img {
  max-width: 20vw;
}

.header-navigation li {
  display: inline;
  margin-left: 20px;
}

/* Intro */
.intro-container {
  width: 60%;
  max-width: 700px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 10vh 0;
  text-align: center;
}

.intro-illustration {
  margin-bottom: 2em;
  min-height: 200px;
  flex-grow: 1;
  flex-shrink: 1;
  background-image: url("images/illustration-intro.png");
  background-repeat: no-repeat;
  background-size: contain;
  background-position-x: center;
  background-position-y: bottom;
}

.intro-container p {
  width: 80%;
  margin: 20px auto;
}

/* Features */
.features-grid {
  width: 80%;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  grid-gap: 100px;
}

.features-item {
  width: 100%;
  max-width: 350px;
  margin: 0 auto;
  text-align: center;
}

.features-item img {
  height: 75px;
  width: auto;
}

/* Stay Productive */
.stay-productive {
  width: 100%;
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
}

.stay-productive-column {
  min-width: 300px;
  flex-basis: 300px;
  flex-grow: 1;
  margin: 0 25px;
}

.stay-productive-column h1 {
  line-height: 1;
}

.stay-productive-column p {
  margin: 20px 0;
}

/* Testimonials */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 50px;
  position: relative;
}

.testimonials-grid::before {
  content: url("images/bg-quotes.png");
  transform: scale(0.7);
  position: absolute;
  top: 60px;
  left: -10px;
}

.testimonials-item {
  width: 100%;
  min-width: 200px;
  background-color: var(--var-bg-testimonials);
  box-shadow: 5px 5px 5px hsla(219, 30%, 18%, 0.5);
  border-radius: 5px;
  z-index: 20;
}

.testimonials-item p {
  margin: 45px 25px 0px 25px;
}

.testimonials-description {
  margin: 15px 25px 25px 25px;
  font-size: 1rem;
  white-space: pre-line;
  line-height: 1;
  display: flex;
  align-items: center;
}

.testimonials-description img {
  height: 40px;
  /* width: 35px; */
  float: left;
  margin-right: 10px;
  border-radius: 50%;
}

.testimonials-author em {
  font-size: 1.1rem;
  font-weight: 700;
}

/* Sign Up */
.signup {
  width: 64%;
  max-width: 800px;
  margin: 200px auto 0 auto;
  padding: 40px;
  background-color: var(--var-bg-intro);
  box-shadow: 10px 10px 10px rgba(0, 0, 0, 0.5);
  border-radius: 10px;
  text-align: center;
  transform: translateY(-50%);
}

.signup p {
  width: 80%;
  margin: 20px auto;
}

.signup form {
  display: flex;
  flex-direction: rows;
  justify-content: space-between;
  flex-wrap: wrap;
}

.input-email {
  height: 50px;
  max-width: 100%;
  flex-grow: 1;
  margin: 5px;
  padding-left: 25px;
  border: none;
  border-radius: 25px;
}

.signup .btn {
  margin: 5px;
}

/* Footer */
.footer-grid {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  flex-wrap: wrap;
  position: relative;
  padding-top: 40px;
}

.footer-grid::before {
  content: url("images/logo.svg");
  position: absolute;
  top: -52px;
}

.footer-item {
  flex-basis: 1px;
  flex-grow: 1;
  margin: 0 10px;
}

.footer-item-contact {
  flex-basis: 2px;
  flex-grow: 2;
}

.footer-item-adress {
  flex-grow: 3;
  flex-basis: 3px;
}

.icon-grid {
  display: grid;
  grid-template-columns: 30px auto;
  grid-template-rows: max-content;
  gap: 10px;
}

.icon-grid img {
  margin-top: 3px;
}

.footer-item li {
  margin-bottom: 20px;
}

.footer-social img {
  padding: 5px;
  border: 1px solid var(--var-white);
  border-radius: 50%;
  transition: border-color 125ms linear;
}

.footer-social img:hover {
  border: 1px solid var(--var-accent-cyan);
  transition: border-color 125ms linear;
}

.attribution p {
  padding-top: 50px;
  font-size: 11px;
  trext-align: center;
}

@media only screen and (max-width: 700px) {
  .intro-container {
    padding: 20px 0;
  }

  .stay-productive img {
    max-width: 500px;
    margin: 0 auto;
  }

  .stay-productive h2 {
    font-size: 1.5rrem;
  }

  .signup {
    width: 90%;
  }

  .signup .btn {
    width: 100%;
    background: linear-gradient(
      0.25turn,
      var(--var-accent-cyan),
      rgb(51, 158, 204)
    );
  }

  .footer-item {
    min-width: 300px;
    margin: 20px 0;
  }

  .footer-item-adress {
    margin-bottom: 5px;
  }

  .footer-item-contact {
    margin-top: 5px;
  }

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