Codecademy - 14th Exercise (CSS)

/* Universal Styles */

html {
  font-size: 16px;
}

body {
  font-family: "Open Sans", sans-serif;
}

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

strong {
  font-weight: bold;
}


.image-container {
  overflow: hidden;
}

.image-container img {
  display: block;
  max-width: 100%;
}

@media only screen and (max-width: 990px) {
  html {
    font-size: 14px;
  }
}

/* Header */

header {
  display: flex;
  align-items: center;
  padding: .5rem 3.75rem;
  background-color: #ff8000;
}

header .logo-small {
  display: none;
}

header .logo-small,
header .logo-big {
  flex-grow: 1;
}

nav li {
  display: inline;
  padding-right: 2rem;
}

nav li:last-child {
  padding-right: 0;
}

@media only screen and (max-width: 990px) {
  header .logo-big {
    display: none;
  }

  header .logo-small {
    display: block;
  }
}

@media only screen and (max-width: 540px) {
  header {
    flex-direction: column;
    padding-left: 0;
    padding-right: 0;
  }

  header .logo-small {
    margin-bottom: 1rem;
  }
}

/* Banner */

#banner {
  position: relative;
  height: 43.75rem;
  padding: 0 25%;
  background: url(" https://s3.amazonaws.com/codecademy-content/courses/freelance-1/unit-6/banner.png") center center no-repeat;
  background-size: cover;
  text-align: center;
}

#banner:before { /* Orange Overlay */
  position: absolute;
  content: "";
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
    background-color: rgba(255, 128, 0, 0.75);
}

#banner * {
  position: relative; /* Makes elements display above overlay. */
}

h1 {
  padding-top: 10.4375rem;
  padding-bottom: 1.25rem;
  font-family: "Creepster", cursive;
  font-size: 8rem;
    color: rgba(0, 0, 0, 0.7);
}

#banner p {
  color: white;
  line-height: 1.5;
  font-size: 1.375rem;
}

@media only screen and (max-width: 820px) {
  h1 {
    padding-top: 7rem;
    font-size: 6rem;
  }
}

@media only screen and (max-width: 590px) {
  h1 {
    font-size: 4rem;
  }
}

/* Color Guide */

#color-guide {
  padding: 3.875rem 15% 13.5rem 15%;
}

#color-guide .introduction {
  padding: 0 10%;
  margin-bottom: .75rem;
  text-align: center;
  font-size: 1.375rem;
  line-height: 1.4;
}

#color-guide h2 {
  margin-bottom: 2.4375rem;
  line-height: 1;
  font-size: 2rem;
  color: #ff8000;
}

#color-guide .color {
  display: flex;
  justify-content: space-between;
  padding-top: 5.25rem;
}

.color .information {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 35%;
}

.color .information h3 {
  padding-bottom: .5rem;
  font-size: 1.375rem;
  font-weight: bold;
}

.color .information p {
  font-size: .875rem;
  line-height: 1.4;
}

.color .swatches {
  width: 60%;
}

.color .swatches h4 {
  margin-bottom: 1.25rem;
  font-size: 1.125rem;
  font-weight: bold;
    color: #9b9b9b;
}

.color .swatch {
  display: flex;
  height: 6.6875rem;
  border: 10px solid #e6e6e6;
  margin-bottom: 1.25rem;
}

.color .swatch:last-child {
  margin-bottom: 0;
}

.color .swatch > div {
  flex-grow: 1;
  border-right: 10px solid #e6e6e6;
}

.color .swatch > div:last-child {
  border-right: 0;
}

@media only screen and (max-width: 820px) {
  #color-guide .color {
    flex-direction: column;
    align-items: center;
  }

  .color .information {
    width: 100%;
    margin-bottom: 3rem;
    align-items: center;
  }

  .color .information h3 {
    padding-bottom: 1.5rem;
  }

  .color .information p {
    margin-bottom: 2rem;
  }

  .color .swatches {
    width: 100%;
  }
}

/* Red Swatches */

.reds .base-color {
  color: #ff002b;
}

/* Red lightness decreases by 15 */
.reds .lightness .color-1 {
    background-color: hsl(350, 100%, 80%);
}

.reds .lightness .color-2 {
  background-color: hsl(350, 100%, 65%);
}

.reds .lightness .color-3 {
  background-color: hsl(350, 100%, 50%);
}

.reds .lightness .color-4 {
  background-color: hsl(350, 100%, 35%);
}

.reds .lightness .color-5 {
  background-color: hsl(350, 100%, 20%);
}

/* Red saturation decreases by 15 */
.reds .saturation .color-1 {
    background-color: hsl(350, 100%, 50%);
}

.reds .saturation .color-2 {
  background-color: hsl(350, 85%, 50%);
}

.reds .saturation .color-3 {
  background-color: hsl(350, 70%, 50%);
}

.reds .saturation .color-4 {
  background-color: hsl(350, 55%, 50%);
}

.reds .saturation .color-5 {
  background-color: hsl(350, 40%, 50%);
}

/* Red hue increases by 15 */
.reds .hue .color-1 {
    background-color: hsl(320, 100%, 50%);
}

.reds .hue .color-2 {
  background-color: hsl(335, 100%, 50%);
}

.reds .hue .color-3 {
  background-color: hsl(350, 100%, 50%);
}

.reds .hue .color-4 {
  background-color: hsl(5, 100%, 50%);
}

.reds .hue .color-5 {
  background-color: hsl(20, 100%, 50%);
}

/* Green Swatches */

.greens .base-color {
  color: #00ff2a;
}

/* Green lightness decreases by 20 */
.greens .lightness .color-1 {
    background-color: hsl(103, 100%, 85%);
}

.greens .lightness .color-2 {
  background-color: hsl(103, 100%, 70%);
}

.greens .lightness .color-3 {
  background-color: hsl(103, 100%, 50%);
}

.greens .lightness .color-4 {
  background-color: hsl(103, 100%, 30%);
}

.greens .lightness .color-5 {
  background-color: hsl(104, 100%, 10%);
}

/* Green saturation decreases by 20 */
.greens .saturation .color-1 {
    background-color: hsl(130, 100%, 50%);
}

.greens .saturation .color-2 {
  background-color: hsl(130, 80%, 50%);
}

.greens .saturation .color-3 {
  background-color: hsl(130, 60%, 50%);
}

.greens .saturation .color-4 {
  background-color: hsl(130, 40%, 50%);
}

.greens .saturation .color-5 {
  background-color: hsl(131, 20%, 50%);
}

/* Green hue increases by 22 */
.greens .hue .color-1 {
    background-color: hsl(86, 100%, 50%);
}

.greens .hue .color-2 {
  background-color: hsl(108, 100%, 50%);
}

.greens .hue .color-3 {
  background-color: hsl(130, 100%, 50%);
}

.greens .hue .color-4 {
  background-color: hsl(152, 100%, 50%);
}

.greens .hue .color-5 {
  background-color: hsl(174, 100%, 50%);
}

/* Blue Swatches */

.blues .base-color {
  color: #0055ff;
}

/* Blue lightness decreases by 20 */
.blues .lightness .color-1 {
    background-color: hsl(220, 100%, 90%);
}

.blues .lightness .color-2 {
  background-color: hsl(220, 100%, 70%);
}

.blues .lightness .color-3 {
  background-color: hsl(220, 100%, 50%);
}

.blues .lightness .color-4 {
  background-color: hsl(220, 100%, 30%);
}

.blues .lightness .color-5 {
  background-color: hsl(220, 100%, 10%);
}

/* Blue saturation decreases by 20 */
.blues .saturation .color-1 {
    background-color: hsl(220, 100%, 50%);
}

.blues .saturation .color-2 {
  background-color: hsl(220, 80%, 50%);
}

.blues .saturation .color-3 {
  background-color: hsl(220, 60%, 50%);
}

.blues .saturation .color-4 {
  background-color: hsl(220, 40%, 50%);
}

.blues .saturation .color-5 {
  background-color: hsl(220, 20%, 50%);
}

/* Blue hue decreases by 20 */
.blues .hue .color-1 {
    background-color: hsl(260, 100%, 50%);
}

.blues .hue .color-2 {
  background-color: hsl(240, 100%, 50%);
}

.blues .hue .color-3 {
  background-color: hsl(220, 100%, 50%);
}

.blues .hue .color-4 {
  background-color: hsl(200, 100%, 50%);
}

.blues .hue .color-5 {
  background-color: hsl(180, 100%, 50%);
}

/* Footer */

footer {
  position: relative;
  height: 30rem;
  padding: 7.8125rem 30% 0 30%;
  background: url("https://s3.amazonaws.com/codecademy-content/courses/freelance-1/unit-6/footer.png") center center no-repeat;
  background-size: cover;
  text-align: center;
  font-size: 1.125rem;
  line-height: 1.4;
  color: white;
}

footer:before { /* Overlay */
  position: absolute;
  content: "";
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
    background-color: rgba(255, 128, 0, 0.75);
}

footer * {
  position: relative; /* Makes elements display above overlay. */
}

footer strong {
  display: block;
  margin-bottom: 1.25rem;
  font-size: 2.25rem;
}

footer p {
  margin-bottom: 4.3125rem;
}

footer .button {
  padding: 1.25rem 3.75rem;
  border-radius: 4px;
  background-color: #ff8000;
}

@media only screen and (max-width: 560px) {
  footer {
    padding: 4.8125rem 15% 0 15%;
  }
}