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

:root {
  --color-primary: #ffffff;
  /* fondos o textos en fondos oscuros */
  --color-secundary: #0E2A47;
  /* Títulos, párrafos y bordes */
  --color-tertiary: #1B1464;
  /* para palabras claves, botones y fondos */
  --color-quaternary: #00FFE5;
  /* botones */
  --color-quinary: #EC008C;
  /* enlaces y botones */
  --color-alt: #f0f3f4;
  /* alternativo */
}

header.header-container,
main.main-container,
footer.footer-container {
  width: 100%;
  /*border: 1px solid red;*/
}

header.header-container,
footer.footer-container {
  background-color: var(--color-tertiary);
}

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

h1.header-title,
h4.footer-title {
  color: var(--color-quinary);
}

p.header-text,
a.header-link {
  color: var(--color-quaternary);
}

ul.header-list>li {
  color: var(--color-primary);
}

a.header-link {
  text-decoration: none;
}

a.header-link:hover {
  text-decoration: underline;
}

.wrapper {
  width: 80%;
  min-width: 360px;
  margin: 0 auto;
  /*border: 1px solid green;*/
  padding: 20px 40px;
}

body {
  font-family: "Overpass Mono", monospace;
  font-optical-sizing: auto;
  font-style: normal;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  margin-bottom: 20px;
}

h2,
h3,
h4,
h5,
h6 {
  color: var(--color-secundary);
}

h1 {
  font-size: 45px;
}

h2 {
  font-size: 35px;
}

h3 {
  font-size: 30px;
}

h4 {
  font-size: 25px;
}

h5,
h6 {
  font-size: 20px;
}

p,
a,
li {
  font-size: 18px;
}

ol>li,
ul>li {
  margin-left: 40px;
  margin-bottom: 10px;
}

main>div.wrapper>section {
  background-color: transparent;
  margin-bottom: 30px;
  border-bottom: 1px dashed var(--color-alt);
  height: auto;
  padding-bottom: 20px;
}

section>header.header-subtitle,
section>div.example-container,
section>div.example-container2,
section>div.example-container3,
section>div.example {
  width: 100%;
  padding: 20px 0;
  margin-bottom: 20px;
}

section>div.example-container {
  background-color: var(--color-quaternary);
  border-radius: 5px;
}

/*section > header.header-subtitle {
  background-color: orange;
}

section > div.example-container {
  background-color: bisque;
  border: 1px solid blue;
}*/
details,
div.container-content1,
div.container-content2,
div.container-content3,
div.container-content4 {
  width: 90%;
  margin: 0 auto;
}

.wrapper-content1,
.wrapper-content2 {
  width: 100%;
  margin: 10px auto;
  padding: 40px;
}


/* 1. background-color */
details {
  background-color: #f7f9f9;
}

details>ol {
  padding: 10px 20px;
}

summary {
  background-color: var(--color-secundary);
  color: #fff;
  padding: 20px;
}

ul,
ol {
  padding: 20px 0;
}

details>ol>li {
  color: var(--color-secundary);
}

/* 2. background-image */
div.container-content1 {
  border: 1px solid var(--color-alt);
  background-image: url(https://marketplace.canva.com/EAFsX1qBBys/1/0/1600w/canva-fondo-virtual-para-zoom-figuras-abstractas-org%C3%A1nico-rosa-NmcFlhJ1GXY.jpg);
  background-position: right top;
  opacity: .9;
}

div.container-content1>div.wrapper-content1>h3.title-content1 {
  color: var(--color-quinary);
  border-bottom: 10px solid var(--color-quinary);
}

div.container-content1>div.wrapper-content1>ul.ul-content1 {
  list-style: none;
  margin-left: -40px;
}

div.container-content1>div.wrapper-content1>ul.ul-content1>li.li-content1 {
  color: var(--color-tertiary);
  font-weight: 700;
}

/* 3. background-repeat */
p.text-content2,
p.text-content3,
p.text-content4 {
  font-weight: 700;
  font-size: 20px;
}

div.container-content2,
div.container-content3,
div.container-content4 {
  opacity: .9;
}

div.container-content2 {
  background-image: url('https://png.pngtree.com/background/20210711/original/pngtree-vintage-chinese-style-banner-picture-image_1097050.jpg');
  background-repeat: no-repeat;
  background-position: right top;
}

div.container-content2>div.wrapper-content2>p.text-content2 {
  font-weight: 700;
  color: var(--color-tertiary);
  font-size: 20px;
}

div.container-content3 {
  background-image: url('https://www.color-hex.com/palettes/14115.png');
  background-repeat: repeat-x;
}

div.container-content3>div.wrapper-content2>p.text-content3 {
  color: var(--color-quinary);
}

div.container-content4 {
  background-image: url('https://images.vexels.com/media/users/3/148176/isolated/preview/da19cde350f69c20b064ecefca315d52-resumen-de-vectores-de-fondo-splash.png');
  background-repeat: repeat-y;
}

div.container-content4>div.wrapper-content2>p.text-content4 {
  color: var(--color-quinary);
}

/* background-attachment */
section>div.example-container2,
section>div.example-container3,
section>div.example {
  border-radius: 5px;
}

section>div.example-container2,
section>div.example-container3 {
  background-color: var(--color-secundary);
}

section>div.example-container2 {
  background-image: url('https://img.itch.zone/aW1hZ2UvNTA4MzgwLzMwNTM5ODcuZ2lm/original/CWCy9m.gif');
  background-repeat: no-repeat;
  background-position: right top;
  background-attachment: fixed;
}

section>div.example-container3 {
  background-image: url('https://miin-cosmetics.com/blog/wp-content/uploads/horizontal.gif');
  background-repeat: no-repeat;
  background-position: bottom right;
  background-attachment: scroll;
}

.wrapper-content3,
.wrapper-content4 {
  background-color: transparent;
  opacity: .8;
  max-width: 60%;
  min-width: 50%;
  height: auto;
  padding: 20px;
}

.wrapper-content3>h3.title-content5,
.wrapper-content4>h3.title-content5 {
  color: var(--color-quinary);
  font-weight: 700;

}

.wrapper-content3>h3.title-content5,
.wrapper-content4>h3.title-content5 {
  font-size: 22px;
}

.wrapper-content3>p.text-content5,
.wrapper-content4>p.text-content5 {
  font-size: 14px;
  color: var(--color-quaternary);
  font-weight: 700;
}

/* background-clip */
div.example {
  background-color: transparent;
  height: auto;
  padding: 20px;
  margin-top: 20px;
}

#bg-clip-test {
  background-color: var(--color-alt);
  height: auto;
  background-position: center left;
  border: 1px solid var(--color-secundary);
}

.wrapper-bgclip {
  background-clip: border-box;
  width: 90%;
  margin: 0 auto;
}

.wrapper-bgclip2 {
  background-image: url('https://c4.wallpaperflare.com/wallpaper/444/132/1014/anime-boys-jujutsu-kaisen-monochrome-satoru-gojo-shonen-jump-hd-wallpaper-preview.jpg');
  background-repeat: no-repeat;
  background-clip: padding-box;
  background-position: center center;
  width: 90%;
  height: 300px;
  margin: 10px auto;
  border: 1px solid var(--color-quinary);
}

.wrapper-bgclip3 {
  width: 100%;
  height: 250px;
  background-clip: content-box;
  background-image: url('https://png.pngtree.com/background/20210709/original/pngtree-simple-character-financial-business-picture-image_935328.jpg');
  background-repeat: no-repeat;
  background-position: left bottom;
}

.wrapper-bgclip4 {
  background-clip: text;
}

.wrapper-bgclip>p {
  font-size: 16px;
}

.img1-bgclip {
  width: 100%;
  border-radius: 10px;
  margin-bottom: 10px;
}

/* background-origin */
div.container-origin {
  border: 4px solid transparent;
  background-color: var(--color-quaternary);
  background-image: url('https://static.vecteezy.com/system/resources/previews/000/280/920/original/vector-abstract-pastel-geometric-background.jpg');
  color: var(--color-tertiary);
  padding: 20px;
  background-repeat: no-repeat;
  /*background-position: left top;*/
  background-size: cover;
  border-radius: 5px;
}

div.container-origin>p {
  font-size: 16px;
}

#bgorigin1 {
  background-origin: border-box;
}

#bgorigin2 {
  background-origin: padding-box;
}

#bgorigin3 {
  background-origin: content-box;
}

/* background-size */
div.container-size {
  border: 2px solid var(--color-quaternary);
}

div.wrapper-bgsize {
  background-color: transparent;
  max-width: 90%;
  min-width: 50%;
  margin: 0 auto;
}

div.wrapper-bgsize>#cover,
div.wrapper-bgsize>#contain {
  width: 100%;
  background-color: var(--color-quaternary);
}

#cover {
  background-image: url('https://wallpapers-clan.com/wp-content/uploads/2024/07/deadpool-vs-wolverine-yellow-background-desktop-wallpaper-preview.jpg');
  background-size: cover;
  background-position: top center;
  background-repeat: no-repeat;
}

#contain {
  background-image: url('https://i.pinimg.com/originals/bf/e9/f4/bfe9f47c71a7eb89d008476353e1d1e9.jpg');
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center center;
}

div.wrapper-bgsize>#cover:hover,
div.wrapper-bgsize>#contain:hover {
  opacity: .8;
  transition: all ease-in .5s;
}

#cover>a.link-cover,
#contain>a.link-cover {
  width: 100%;
  height: 300px;
  display: block;
  text-align: right;
}