@import url('reset.css');

:root {
  --color-accent: #33A8DB;
  --color-primary: #33A8DB;
  --color-secondary: #1472B7;
  --color-text: #31A8DD;
  --font-size-base: 1rem;
  --font-size-large: 2.5em;
  --font-size-medium: 1.25em;
  --font-size-small: 1em;
  --logo-size: 16.25em; /* 260px / 16px = 16.25em */
}

body {
  background-color: black;
}

h2 {
  font-size: 2rem;
  color: #33A8DB;
  font-weight: bold;
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 24px;
}

p {
  color: white;
}

section {
  margin: 100px auto;
}

.banner {
  background-image: linear-gradient(rgba(0, 0, 0, .6), rgba(49, 168, 221, .2), rgba(0, 0, 0, .6)), url('../images/banner.png');
  background-size: cover;
  background-repeat: no-repeat;
  height: 600px;
  padding-top: 60px;
  border-bottom: 1px solid #33A8DB80;
}

.banner .banner-content {
  color: white;
  width: 600px;
  margin: auto;
  text-align: center;
}

.banner h1 {
  font-size: var(--font-size-large);
  font-weight: 900;
  text-transform: uppercase;
  color: transparent;
  background: -webkit-linear-gradient(var(--color-primary), var(--color-secondary));
  background-clip: text;
  -webkit-background-clip: text;
}

.banner p {
  font-size: var(--font-size-medium);
  margin: 16px 0 24px;
}

.banner .logo {
  background-color: rgba(0, 0, 0, .2);
  height: var(--logo-size);
  width: var(--logo-size);
  margin: auto;
  border-radius: 50%;
  padding: 16px;
  margin-bottom: 16px;
}

.banner .logo img {
  margin: auto;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.banner .banner-content button {
  color: var(--color-text);
  font-size: var(--font-size-small);
  font-weight: bold;
  padding: 16px 32px;
  text-transform: uppercase;
  letter-spacing: 4px;
  background-color: transparent;
  border-image: linear-gradient(var(--color-primary), var(--color-secondary));
  border-image-slice: 10;
  border-radius: 30px;
}

#course-content {
  width: 800px;
  text-align: center;
}

#course-content .modules-list {
  margin: 24px 0;
}

#course-content .modules-list .module {
  color: white;
  width: 530px;
  margin: 0 auto 24px;
  border: 1px solid #33A8DB;
  background-color: #252525;
  padding: 16px;
  border-radius: 100px;
  box-shadow: inset -5px 6px 8px rgba(0, 0, 0, .7);
}

#course-content .modules-list .module span {
  color: #33A8DB;
}

#transform-world {
  height: 35em; /* 560px / 16px = 35em */
  background-size: cover;
  background-image: url("../images/woman-code.png");
  background-attachment: fixed;
  border-top: 0.0625em solid var(--color-accent); /* 1px / 16px = 0.0625em */
  border-bottom: 0.0625em solid var(--color-accent);
  padding: 12.5em; /* 200px / 16px = 12.5em */
}

#transform-world p {
  font-weight: 900;
  font-size: 2.5em;
  text-transform: lowercase;
  max-width: 15.625em; /* 250px / 16px = 15.625em */
  text-shadow: 3px 2px var(--color-accent); /*text-shadow: 0.1875em 0.125em */
}

#professional-challenges {
  text-align: center;
  width: 50em; /* 800px / 16px = 50em */
}

#professional-challenges img {
  margin: 2em 0; /* 32px / 16px = 2em */
}

footer {
  padding: 3.75em 0; /* 60px / 16px = 3.75em */
  text-align: center;
  background-image: linear-gradient(rgba(50, 168, 219, .0), rgba(50, 168, 219, .2));
  border-top: 0.0625em solid var(--color-accent);
}

footer .dio-logo {
  width: 18.75em; /* 300px / 16px = 18.75em */
}

footer a {
  color: var(--color-accent);
  font-weight: bold;
  text-decoration: none;
}