:root {
  --hue: 0;
  --sat: 0%;
  --l-1: hsl(var(--hue), var(--sat), 100%);
  --l-99: hsl(var(--hue), var(--sat), 99%);
  --l-96: hsl(var(--hue), var(--sat), 96%);
  --l-93: hsl(var(--hue), var(--sat), 93%);
  --l-87: hsl(var(--hue), var(--sat), 87%);
  --l-77: hsl(var(--hue), var(--sat), 77%);
  --l-67: hsl(var(--hue), var(--sat), 67%);
  --l-15: hsl(var(--hue), var(--sat), 15%);
  --l-0: hsl(var(--hue), var(--sat), 0%);
  --content-padding: 2vw;
  --list-gap-m: 6px;
  --list-gap-l: 12px;
  --shadow: 0px 4px 8px 0px var(--l-87);
  --shadow-strong: 0px 8px 8px 0px var(--l-87);
  --radius: 4px;
  --header-height: 60px;
}

body {
  background: var(--l-1);
  grid-template: 'header' var(--header-height)
  'main'
  'footer'
  /1fr;
  min-height: 100vh;
}

/* aside layout */
@media screen and (min-width: 897px) {
  body:has(>aside){
    display: grid;
    column-gap: 48px;
    grid-template: 'header header' var(--header-height)
                    'main aside'
                    'footer footer'
                    /3fr 1fr;
  }
  aside > nav {
    position: sticky;
    top: var(--header-height);
  }
}
body > aside {
  grid-area: aside;
  background: var(--l-99);
  padding: 12px;
  border-left: 1px solid var(--l-93);
}
body > aside > * {
  display: block;
  padding: 6px 0;
}
aside img, aside picture {
  width: 100%;
  height: auto;
  max-height: 480px;
  object-fit: contain;
}
aside > nav > ol {
  flex-direction: column;
  gap: var(--list-gap-l);
}
aside > nav > ol > li:after {
  content: none;
}

/* nav layout */
body > nav {
  background: var(--l-99);
  padding: 12px;
}
@media screen and (min-width: 897px) {
  body:has(>nav){
    display: grid;
    column-gap: 48px;
    grid-template: 'header header' var(--header-height)
                    'nav main'
                    'footer footer'
                    /1fr 3fr;
  }
  body > nav {
    grid-area: nav;
    position: sticky;
    top: var(--header-height);
    z-index: 100;
    background: var(--l-99);
    padding: 12px;
    border-right: 1px solid var(--l-93);
  }
}

a:hover {
  text-decoration: none;
}

label, input[type="checkbox"], input[type="radio"], input[type="range"], input[type="date"], button, select, summary {
  cursor: pointer;
}

/* header */
header {
  grid-area: header;
  position: sticky;
  top: 0;
  background: var(--l-1);
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--list-gap-m);
  height: var(--header-height);
  z-index: 300;
  padding: 0;
}
@media screen and (min-width: 897px){
  header {
    gap: var(--list-gap-l);
    padding: 0 18px;
  }
}

/* logo */
header > a:has(>img){
  flex-shrink: 0;
}
header > a:has(>img):hover, footer > a:has(>img):hover{
  opacity: 0.8;
}
header > a > img, footer > a > img {
  display: block;
  aspect-ratio: 3/1;
  width: 100%;
  height: auto;
  object-fit: contain;
}

/* menu */
header > ul {
  display: flex;
  flex-wrap: nowrap;
  gap: var(--list-gap-m);
  height: 100%;
  margin: 0;
  padding: 0;
  overflow-x: auto;
}
@media screen and (min-width: 897px) {
  header > ul {
    gap: var(--list-gap-l);
  }
}
header > ul > li {
  background: var(--l-96);
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
header > ul > li > * {
  display: block;
  padding: 12px;
  height: 100%;
  border: 1px solid var(--l-93)
}

/* header menu button */
header > ul > li > button {
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  gap: 6px;
  align-items: center;
}
header > ul > li > button:after {
  content: '';
  display: block;
  position: relative;
  width: 0;
  height: 0;
  border-width: 4px;
  border-style: solid;
  border-color: var(--l-0) transparent transparent transparent;
  transition: all 0.3s ease;
  transform: translateY(2px);
}
header > ul > li > button:hover:after {
  transform: rotateX(180deg) translateY(2px);
}

main {
  grid-area: main;
}

/* main section */
main > section {
  padding: 40px var(--content-padding);
}

/* main visual */
main > section:first-of-type:has(>img) {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
@media screen and (min-width: 897px) {
  main > section:first-of-type:has(>img) {
    flex-direction: row;
  }
}

/* subtitle */
h1 > span, h2 > span, h3 > span, h4 > span, h5 > span {
  display: block;
  margin-top: 0.2em;
  font-size: 0.6em;
}

/* breadcrumbs */
nav > ol {
  display: flex;
  margin: 0;
  gap: var(--list-gap-l);
  padding: 6px var(--content-padding);
  background: var(--l-96);
  overflow-x: auto;
}
nav > ol > li {
  display: flex;
  align-items: center;
  gap: 1em;
  flex-shrink: 0;
}
nav > ol > li:after {
  content: '>';
  font-size: 0.6em;
}
nav > ol > li:last-of-type:after{
  content: none;
}

/* list page */
section > ol {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px var(--list-gap-l);
  list-style: none;
  padding: 0;
}

/* pagination */
section > ol + nav {
  display: flex;
  margin: 0;
  gap: var(--list-gap-l);
} 
section > ol + nav > ol {
  background: none;
  padding: 0;
} 
section > ol + nav > ol > li {
  width: 42px;
  height: 42px;
  background: var(--l-96);
  border: 2px solid var(--l-0);
  border-radius: var(--radius);
  display: flex;
  justify-content: center;
  align-items: center;
}
section > ol + nav > ol > li > a {
  display: block;
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}
section > ol + nav > ol > li:after {
  content: none;
}

/* card */
li > a:has(>article) {
  display: block;
  box-shadow: var(--shadow);
  color: var(--l-0);
  text-decoration: none;
  border-radius: var(--radius);
  overflow: hidden;
  height: 100%;
  min-height: 312px;
  transition: all 0.1s ease-in;
}
li > a:has(>article):hover {
  transform: translateY(-6px) scale(1.01);
  box-shadow: var(--shadow-strong);
  opacity: 0.90;
}
li > a > article > img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}
li > a > article {
  height: 100%;
  display: flex;
  flex-direction: column;
}
li > a > article > div {
  padding: 12px 6px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex-grow: 1;
}
li > a > article > div > h5 {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 1;
  overflow: hidden;
  margin: 0;
}
li > a > article > div > p {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 4;
  overflow: hidden;
  margin: 0;
}
li > a > article > div > time {
  font-size: 10px;
  margin-top: auto;
  margin-left: auto;
  color: var(--l-77);
}

/* link | submit button */
a:has(>span), button[type='submit'] {
  display: flex;
  justify-content: center;
  align-items: center;
  width: fit-content;
  min-width: 180px;
  padding: 12px 24px;
  height: 48px;
  border-radius: 24px;
  border: 2px solid var(--l-0);
  background: var(--l-96);
  transition: all 0.1s ease;
}
a:has(>span):hover, button[type='submit']:hover {
  background: var(--l-99);
}

/* accordion */
details[open] summary::after {
  transform: translateX(-4px) translateY(-2px) rotateZ(90deg);
}
summary {
  height: 72px;
  padding: 18px 18px 18px 48px;
  display: flex;
  align-items: center;
  position: relative;
  inset-block-start: 1em;
  background: var(--l-96);
}
summary:before{
  content: '';
  display: block;
  width: 24px;
  height: 24px;
  border-radius: 100%;
  border: 2px solid var(--l-67);
  position: absolute;
  top: 50%;
  left: 18px;
  transform: translateY(-50%);
}
summary:after{
  content: '';
  display: block;
  width: 0;
  height: 0;
  border-width: 6px;
  border-style: solid;
  border-color: transparent transparent transparent var(--l-67);
  position: absolute;
  top: 50%;
  left: 28px;
  transform: translateY(-50%);
  transition: all 0.1s ease;
}
summary + * {
  position: relative;
  display: block;
  margin: 0;
  padding: 42px 18px 18px 48px;
  background: var(--l-99);
}

/* form */
form {
  display: grid;
  gap: var(--list-gap-l);
}
form > label {
  display: grid;
  gap: 4px;
}
fieldset {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 6px;
  padding: 0;
  border: none;
}
fieldset > label {
  display: block;
  font-size: 0.9em;
  color: var(--l-15);
}
input, select, textarea {
  padding: 6px;
  background: var(--l-96);
  border-width: 2px;
  border-color: transparent transparent var(--l-77);
}
textarea {
  min-height: 120px;
}
input:invalid {
  background: pink;
}
label:has(input:invalid):after {
  content: 'invalid';
  display: block;
  color: red;
}
input[type='search']{
  position: relative;
}

/* full image */
picture > img {
  display: block;
  object-fit: cover;
  width: 100%;
  aspect-ratio: 1.91;
}

/* article */
main > article {
  max-width: 640px;
  margin: 0 auto 40px;
  padding: 0 12px;
}
@media screen and (min-width: 897px) {
  main > article {
    padding: 0;
  }
}
article > time {
  color: var(--l-77);
}
article h2 {
  border-bottom: 1px solid var(--l-87);
}
article * {
  max-width: 100%;
}

/* quote */
blockquote {
  background: var(--l-96);
  margin: 0;
  border: 1px solid var(--l-87);
  position: relative;
  /* same as default margin */
  padding: 40px 16px; 
}
blockquote:before {
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 28px;
  padding: 6px;
  line-height: 1;
  position: absolute;
  color: var(--l-67);
  content: "“";
  top: 0;
  left: 0;
}
blockquote:after {
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 28px;
  padding: 6px;
  line-height: 1;
  position: absolute;
  color: var(--l-67);
  content: "”";
  bottom: 0;
  right: 0;
}

/* code block */
pre:has(> code) {
  background: var(--l-0);
  color: var(--l-1);
  overflow-x: scroll;
}
pre:has(> code) code {
  display: block;
  background: var(--l-0);
  color: var(--l-1);
}
code {
  display: inline-block;
  padding: 0.12em 0.6em;
  background: var(--l-93);
  color: red;
}

/* table */
table {
  display: block;
  overflow: auto;
  border: 1px solid var(--l-96);
  aspect-ratio: 3/4;
}
caption {
  padding: 12px 0;
}
thead {
  background: var(--l-87);
  height: 3em;
  position: sticky;
  top: 0;
  z-index: 100;
}
thead th:first-of-type {
  min-width: 8em;
}
tbody th {
  position: sticky;
  left: 0;
  border-right: 1px dotted var(--l-87);
  z-index: 90;
  background: var(--l-1);
}
tbody > tr:nth-of-type(even), tbody > tr:nth-of-type(even) th{
  background: var(--l-96);
}
tbody td {
  padding: 6px;
  min-width: 10em;
}

/* profile */
address {
  display: grid;
  grid-template: 'img' 60px
                  'name'
                  'text'
                  'link'
                  /1fr;
  padding: 24px 12px;
  border: 1px solid var(--l-96);
  border-radius: var(--radius);
}
@media screen and (min-width: 897px) {
  address {
    grid-template: 'img text' 60px
                    'name text'
                    '. text'
                    '. link'
                    /120px 1fr;
    column-gap: 24px;
    padding: 24px 12px;
  }
}
address > img {
  grid-area: img;
  display: block;
  justify-self: center;
  object-fit: contain;
  height: 100%;
  aspect-ratio: 1;
}
address > h4, address > strong {
  grid-area: name;
  display: block;
  justify-self: center;
  margin: 0;
}
address > p {
  grid-area: text;
  margin: 0;
}
address > ul {
  grid-area: link;
  display: flex;
  flex-wrap: wrap;
  gap: 6px var(--list-gap-l);
  padding: 12px 0;
  list-style: none;
}

/* modal */
dialog {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 400;
  background: rgba(0, 0, 0, 0.5);
  border: none;
  display: flex;
  justify-content: center;
  align-items: center;
}
dialog > form {
  background: var(--l-1);
  width: min(100%, 640px);
  height: min(100%, 640px);
  padding: 24px;
  margin: auto;
}
dialog > form > * {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 12px;
}
dialog > form button {
  display: flex;
  justify-content: center;
  align-items: center;
  width: fit-content;
  min-width: 180px;
  padding: 12px 24px;
  height: 48px;
  border-radius: 24px;
  border: 2px solid var(--l-0);
  background: var(--l-96);
  transition: all 0.1s ease;
}

/* footer */
footer {
  grid-area: footer;
  position: relative;
  z-index: 200;
  background: var(--l-67);
  padding: 30px 12px 0;
}
@media screen and (min-width: 897px) {
  footer {
    display: grid;
    padding: 48px 18px 0;
    grid-template: 'logo list' 80px
                    'strong list'
                    '. small'
                    / 240px 1fr;
    column-gap: 120px;
  }
}
footer > a:has(img) {
  grid-area: logo;
  display: block;
  width: 180px;
}
footer > strong {
  grid-area: strong;
  font-weight: normal;
}
footer > ul {
  grid-area: list;
  display: flex;
  flex-wrap: nowrap;
  gap: 24px 48px;
  list-style: none;
  margin: 24px 0 0 0;
  padding: 0;
}
@media screen and (min-width: 897px) {
  footer > ul {
    margin: 0;
  }
}
footer > ul > li > ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
footer > ul > li > ul > li:first-of-type {
  font-weight: bold;
  margin-bottom: 6px;
  font-size: 1.06em;
}
footer > small {
  grid-area: small;
  text-align: right;
  display: block;
  padding: 6px 0;
}