/* Document
 * ========================================================================== */

/**
 * 1. Add border box sizing in all browsers (opinionated).
 * 2. Backgrounds do not repeat by default (opinionated).
 */

 *,
 ::before,
 ::after {
   box-sizing: border-box; /* 1 */
   background-repeat: no-repeat; /* 2 */
 }
 
 /**
   * 1. Add text decoration inheritance in all browsers (opinionated).
   * 2. Add vertical alignment inheritance in all browsers (opinionated).
   */
 
 ::before,
 ::after {
   text-decoration: inherit; /* 1 */
   vertical-align: inherit; /* 2 */
 }
 
 /**
   * 1. Use the default cursor in all browsers (opinionated).
   * 2. Change the line height in all browsers (opinionated).
   * 3. Breaks words to prevent overflow in all browsers (opinionated).
   * 4. Use a 4-space tab width in all browsers (opinionated).
   * 5. Remove the grey highlight on links in iOS (opinionated).
   * 6. Prevent adjustments of font size after orientation changes in iOS.
   */
 
 :where(:root) {
   cursor: default; /* 1 */
   line-height: 1.5; /* 2 */
   overflow-wrap: break-word; /* 3 */
   -moz-tab-size: 4; /* 4 */
   tab-size: 4; /* 4 */
   -webkit-tap-highlight-color: transparent; /* 5 */
   -webkit-text-size-adjust: 100%; /* 6 */
   text-size-adjust: 100%; /* 6 */
 }
 
 /* Sections
   * ========================================================================== */
 
 /**
   * Remove the margin in all browsers (opinionated).
   */
 
 :where(body) {
   margin: 0;
 }
 
 /**
   * Correct the font size and margin on `h1` elements within `section` and
   * `article` contexts in Chrome, Edge, Firefox, and Safari.
   */
 
 :where(h1) {
   font-size: 2em;
   margin: 0.67em 0;
 }
 
 /* Grouping content
   * ========================================================================== */
 
 /**
   * Remove the margin on nested lists in Chrome, Edge, and Safari.
   */
 
 :where(dl, ol, ul) :where(dl, ol, ul) {
   margin: 0;
 }
 
 /**
   * 1. Correct the inheritance of border color in Firefox.
   * 2. Add the correct box sizing in Firefox.
   */
 
 :where(hr) {
   color: inherit; /* 1 */
   height: 0; /* 2 */
 }
 
 /**
   * Remove the list style on navigation lists in all browsers (opinionated).
   */
 
 :where(nav) :where(ol, ul) {
   list-style-type: none;
   padding: 0;
 }
 
 /**
   * Prevent VoiceOver from ignoring list semantics in Safari (opinionated).
   */
 
 :where(nav li)::before {
   content: "\200B";
   float: left;
 }
 
 /**
   * 1. Correct the inheritance and scaling of font size in all browsers.
   * 2. Correct the odd `em` font sizing in all browsers.
   * 3. Prevent overflow of the container in all browsers (opinionated).
   */
 
 :where(pre) {
   font-family: monospace, monospace; /* 1 */
   font-size: 1em; /* 2 */
   overflow: auto; /* 3 */
 }
 
 /* Text-level semantics
   * ========================================================================== */
 
 /**
   * Add the correct text decoration in Safari.
   */
 
 :where(abbr[title]) {
   text-decoration: underline;
   text-decoration: underline dotted;
 }
 
 /**
   * Add the correct font weight in Chrome, Edge, and Safari.
   */
 
 :where(b, strong) {
   font-weight: bolder;
 }
 
 /**
   * 1. Correct the inheritance and scaling of font size in all browsers.
   * 2. Correct the odd `em` font sizing in all browsers.
   */
 
 :where(code, kbd, samp) {
   font-family: monospace, monospace; /* 1 */
   font-size: 1em; /* 2 */
 }
 
 /**
   * Add the correct font size in all browsers.
   */
 
 :where(small) {
   font-size: 80%;
 }
 
 /* Embedded content
   * ========================================================================== */
 
 /*
   * Change the alignment on media elements in all browsers (opinionated).
   */
 
 :where(audio, canvas, iframe, img, svg, video) {
   vertical-align: middle;
 }
 
 /**
   * Remove the border on iframes in all browsers (opinionated).
   */
 
 :where(iframe) {
   border-style: none;
 }
 
 /**
   * Change the fill color to match the text color in all browsers (opinionated).
   */
 
 :where(svg:not([fill])) {
   fill: currentColor;
 }
 
 /* Tabular data
   * ========================================================================== */
 
 /**
   * 1. Collapse border spacing in all browsers (opinionated).
   * 2. Correct table border color in Chrome, Edge, and Safari.
   * 3. Remove text indentation from table contents in Chrome, Edge, and Safari.
   */
 
 :where(table) {
   border-collapse: collapse; /* 1 */
   border-color: currentColor; /* 2 */
   text-indent: 0; /* 3 */
 }
 
 /* Forms
   * ========================================================================== */
 
 /**
   * Remove the margin on controls in Safari.
   */
 
 :where(button, input, select) {
   margin: 0;
 }
 
 /**
   * Correct the inability to style buttons in iOS and Safari.
   */
 
 :where(button, [type="button" i], [type="reset" i], [type="submit" i]) {
   -webkit-appearance: button;
 }
 
 /**
   * Change the inconsistent appearance in all browsers (opinionated).
   */
 
 :where(fieldset) {
   border: 1px solid #a0a0a0;
 }
 
 /**
   * Add the correct vertical alignment in Chrome, Edge, and Firefox.
   */
 
 :where(progress) {
   vertical-align: baseline;
 }
 
 /**
   * 1. Remove the margin in Firefox and Safari.
   * 3. Change the resize direction in all browsers (opinionated).
   */
 
 :where(textarea) {
   margin: 0; /* 1 */
   resize: vertical; /* 3 */
 }
 
 /**
   * 1. Correct the odd appearance in Chrome, Edge, and Safari.
   * 2. Correct the outline style in Safari.
   */
 
 :where([type="search" i]) {
   -webkit-appearance: textfield; /* 1 */
   outline-offset: -2px; /* 2 */
 }
 
 /**
   * Correct the cursor style of increment and decrement buttons in Safari.
   */
 
 ::-webkit-inner-spin-button,
 ::-webkit-outer-spin-button {
   height: auto;
 }
 
 /**
   * Correct the text style of placeholders in Chrome, Edge, and Safari.
   */
 
 ::-webkit-input-placeholder {
   color: inherit;
   opacity: 0.54;
 }
 
 /**
   * Remove the inner padding in Chrome, Edge, and Safari on macOS.
   */
 
 ::-webkit-search-decoration {
   -webkit-appearance: none;
 }
 
 /**
   * 1. Correct the inability to style upload buttons in iOS and Safari.
   * 2. Change font properties to `inherit` in Safari.
   */
 
 ::-webkit-file-upload-button {
   -webkit-appearance: button; /* 1 */
   font: inherit; /* 2 */
 }
 
 /* Interactive
   * ========================================================================== */
 
 /*
   * Add the correct styles in Safari.
   */
 
 :where(dialog) {
   background-color: white;
   border: solid;
   color: black;
   height: -moz-fit-content;
   height: fit-content;
   left: 0;
   margin: auto;
   padding: 1em;
   position: absolute;
   right: 0;
   width: -moz-fit-content;
   width: fit-content;
 }
 
 :where(dialog:not([open])) {
   display: none;
 }
 
 /*
   * Add the correct display in Safari.
   */
 
 :where(details > summary:first-of-type) {
   display: list-item;
 }
 
 /* Accessibility
   * ========================================================================== */
 
 /**
   * Change the cursor on busy elements in all browsers (opinionated).
   */
 
 :where([aria-busy="true" i]) {
   cursor: progress;
 }
 
 /*
   * Change the cursor on disabled, not-editable, or otherwise
   * inoperable elements in all browsers (opinionated).
   */
 
 :where([aria-disabled="true" i], [disabled]) {
   cursor: not-allowed;
 }
 
 /*
   * Change the display on visually hidden accessible elements
   * in all browsers (opinionated).
   */
 
 :where([aria-hidden="false" i][hidden]) {
   display: initial;
 }
 
 :where([aria-hidden="false" i][hidden]:not(:focus)) {
   clip: rect(0, 0, 0, 0);
   position: absolute;
 }
 
 /* 独自リセット */
 *,
 *::before,
 *::after {
   box-sizing: border-box;
 }
 
 html,
 body,
 h1,
 h2,
 h3,
 h4,
 h5,
 h6,
 ul,
 ol,
 dl,
 li,
 dt,
 dd,
 p,
 div,
 span,
 img,
 a,
 table,
 tr,
 th,
 td,
 small,
 button,
 time,
 figure {
   border: 0;
   font: inherit;
   font-size: 100%;
   margin: 0;
   padding: 0;
   vertical-align: baseline;
 }
 
 html {
   line-height: 1;
 }
 
 ol,
 ul {
   list-style: none;
 }
 
 li,
 dd {
   list-style-type: none;
 }
 
 header,
 footer,
 nav,
 section,
 article,
 main,
 aside,
 figure,
 figcaption {
   display: block;
 }