@charset "utf-8";

:root {
  --color-bg-base: #fff;
  --color-bg-overlay: #fff3e0;
  --color-bg-alter: #e5dbcc;
  --color-bg-marker: #fff5af;
  --color-font-base: #191423;
  --color-font-light: #808080;
}

:root {
  --width-content: 1080px;
}

:root {
  --font-family-base: "游ゴシック体", YuGothic, "游ゴシック Medium",
    "Yu Gothic Medium", "游ゴシック", "Yu Gothic", sans-serif;
  --font-family-bold: "游ゴシック体", YuGothic, "游ゴシック", "Yu Gothic",
    sans-serif;
}

body.body-study {
  --color-font-heading: #004d40;
  --color-accent: #7cb342;
  --color-accent-light: #e8f5e9;
}

body.body-shodo {
  --color-font-heading: #00324b;
  --color-accent: #ffa000;
  --color-accent-light: #ffecb3;
}

body.body-piano {
  --color-font-heading: #880e4f;
  --color-accent: #f05f5f;
  --color-accent-light: #ffebee;
}

body.body-info {
  --color-font-heading: #00324b;
  --color-accent: #8b4b81;
  --color-accent-light: #ede7f6;
}

/* ========================================
Style Reset
======================================== */

html {
  color: #000;
  background: #fff;
}

body,
div,
span,
object,
iframe,
h1,
h2,
h3,
h4,
h5,
h6,
p,
blockquote,
pre,
abbr,
address,
cite,
code,
del,
dfn,
em,
img,
ins,
kbd,
q,
samp,
small,
strong,
sub,
sup,
var,
b,
i,
dl,
dt,
dd,
ol,
ul,
li,
fieldset,
form,
label,
legend,
table,
caption,
tbody,
tfoot,
thead,
tr,
th,
td,
article,
aside,
canvas,
details,
figcaption,
figure,
footer,
header,
hgroup,
menu,
nav,
section,
summary,
time,
mark,
audio,
video {
  margin: 0;
  padding: 0;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
  width: 100%;
}

fieldset,
img {
  border: 0;
}

address,
caption,
cite,
code,
dfn,
em,
strong,
th,
var {
  font-style: normal;
  font-weight: normal;
}

ol,
ul {
  list-style: none;
}

caption,
th {
  text-align: left;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-size: 100%;
  font-weight: normal;
}

q:before,
q:after {
  content: "";
}

abbr,
acronym {
  border: 0;
  font-variant: normal;
}

sup {
  vertical-align: super;
}

sub {
  vertical-align: sub;
}

input,
textarea,
select,
button {
  color: inherit;
  font-family: inherit;
  font-size: inherit;
  font-weight: inherit;
  line-height: inherit;
  font-size: 100%;
  border-radius: 0;
  border: none;
  appearance: none;
  -webkit-appearance: none;
  background-color: inherit;
}

input,
textarea,
select {
  font-size: inherit;
}

textarea {
  resize: vertical;
  display: block;
}

button {
  padding: 0;
  cursor: pointer;
}

legend {
  color: #000;
}

main {
  display: block;
}

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

img {
  /*width: 100%;*/
  height: auto;
  vertical-align: bottom;
}

svg {
  display: block;
}

* {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  box-sizing: border-box;
}

*::before,
*::after {
  box-sizing: border-box;
}

/* ========================================
General Settings
======================================== */

html {
  background-color: var(--color-bg-base);
  font-size: 16px;
  /*Mobile*/
}

@media screen and (min-width: 768px) {
  html {
    font-size: 18px;
  }
}

body {
  line-height: 1.75;
  color: var(--color-font-base);
  font-family: var(--font-family-base);
}

.body-index {
  background-color: var(--color-bg-overlay);
  min-height: 100vh;
}

/* ========================================
Basic Layouts
======================================== */

.container {
  width: calc(100% - 1.5rem);
  /*Mobile*/
  margin: 0 auto;
  max-width: var(--width-content);
}

.header-row {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 1rem;
  /*Mobile*/
  padding: 1.5rem 0;
  /*Mobile*/
}

.eyecatch-row {
  background: var(--color-accent-light);
  border-radius: 0.75rem;
  display: block;
  /*Mobile*/
  padding: 0;
  /*Mobile*/
  margin-bottom: 3rem;
  /*Mobile*/
  overflow: hidden;
}

.eyecatch-text-wrapper {
  padding: 1.5rem;
  /*Mobile*/
}

.container-main-and-aside {
  display: block;
  /*Mobile*/
}

.main-single {
  margin-bottom: 3rem;
  /*Mobile*/
}

.aside {
  background: var(--color-bg-overlay);
  border-radius: 0.25rem;
  overflow: hidden;
}

.aside-inner {
  padding: 1.5rem 0.75rem;
  /*Mobile*/
}

.footer {
  padding: 2rem 0;
}

@media screen and (min-width: 768px) {
  .container {
    width: 90%;
  }

  .header-row {
    flex-direction: row;
    gap: 2rem;
    justify-content: space-between;
    align-items: center;
    padding: 3rem 0;
  }

  .eyecatch-row {
    display: flex;
    flex-direction: row;
    gap: 2rem;
    align-items: center;
    padding: 2rem;
    margin-bottom: 4rem;
  }

  .eyecatch-img-wrapper {
    flex: 3;
    margin-bottom: 0;
  }

  .eyecatch-text-wrapper {
    flex: 2;
    padding: 0;
  }

  .container-main-and-aside {
    display: flex;
    flex-direction: row;
    gap: 2rem;
  }

  .main-single {
    flex: 2;
    margin-bottom: 0;
  }

  .aside {
    flex: 1;
  }

  .aside-inner {
    padding: 1.5rem;
  }
}

/* ========================================
Basic Components & Utilities
======================================== */

.border-rounded {
  border-radius: 0.25rem;
}

.flex-wrapper {
  display: block;
  /*Mobile*/
}

.flex-wrapper-static {
  display: flex;
  gap: 2rem;
}

.icon {
  display: inline-block;
  width: 1em;
  vertical-align: middle;
}

.category-wrapper,
.tag-wrapper {
  font-size: 0.8rem;
}

.img-fluid {
  width: 100%;
}

.img-float-left {
  float: left;
  margin-right: 1rem;
  margin-bottom: 1rem;
}

.img-float-right {
  float: right;
  margin-left: 1rem;
  margin-bottom: 1rem;
}

.float-clear {
  clear: both;
}

.small {
  font-size: 0.85rem;
}

.movie-wrapper {
  aspect-ratio: 16 / 9;
  width: 100%;
}

.movie-iframe {
  width: 100%;
  height: 100%;
}

@media screen and (min-width: 768px) {
  .flex-wrapper {
    display: flex;
    gap: 2rem;
  }
}

/* ========================================
Header & Eyecatch
======================================== */

.header {
  border-top: 3px solid var(--color-accent);
  font-feature-settings: "palt";
}

.header-catchphrase {
  color: var(--color-font-light);
  font-size: 0.9rem;
}

.header-logo-wrapper {
  text-align: center;
  /*Mobile*/
}

.header-logo {
  font-family: var(--font-family-bold);
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.header-nav-wrapper {
  overflow: hidden;
}

.topmenu {
  overflow-x: auto;
}

.topmenu::-webkit-scrollbar {
  display: none;
}

.topmenu-list {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
}

.topmenu-list-item {
  text-align: center;
}

.topmenu-list-icon {
  margin-bottom: 0.5rem;
}

.topmenu-list-text {
  white-space: nowrap;
}

.eyecatch-title {
  color: var(--color-font-heading);
  font-feature-settings: "palt";
  font-family: var(--font-family-bold);
  font-size: 1.75rem;
  font-weight: 600;
  line-height: 1.5;
}

.eyecatch-catchphrase {
  color: var(--color-accent);
  font-feature-settings: "palt";
  font-family: var(--font-family-bold);
  font-weight: 600;
  margin-bottom: 1.75rem;
}

@media screen and (min-width: 768px) {
  .header-logo-wrapper {
    text-align: left;
  }

  .img-eyecatch {
    border-radius: 0.25rem;
  }
}

/* ========================================
Article (Main Contents)
======================================== */

/* ---------- Typography and Margin ---------- */

.article-single dl,
.article-single ul,
.article-single ol,
.article-single h1,
.article-single h2,
.article-single h3,
.article-single h4,
.article-single h5,
.article-single h6,
.article-single pre,
.article-single code,
.article-single form,
.article-single fieldset,
.article-single legend,
.article-single input,
.article-single select,
.article-single textarea,
.article-single p,
.article-single blockquote,
.article-single details,
.article-single figure {
  margin-bottom: 1.75rem;
}

.article-single .mbottom-0 {
  margin-bottom: 0;
}

.article-single .mbottom-small {
  margin-bottom: 1rem;
}

.article-single .text-center {
  text-align: center;
}

.article-single .text-right {
  text-align: right;
}

.article-single h1,
.article-single h2,
.article-single h3,
.article-single h4,
.article-single h5,
.article-single h6 {
  color: var(--color-font-heading);
  font-feature-settings: "palt";
  font-family: var(--font-family-bold);
  font-weight: 600;
  line-height: 1.5;
}

.article-single b,
.article-single strong {
  font-family: var(--font-family-bold);
  font-weight: 600;
}

.article-single h1 {
  font-size: 1.5rem;
}

.article-single h2 {
  font-size: 1.3rem;
}

.article-single h3 {
  font-size: 1.2rem;
}

.article-single h4 {
  font-size: 1.1rem;
}

.article-single h5,
.article-single h5 {
  font-size: 1rem;
}

/* ---------- Breadcrumb ---------- */

.breadcrumb-wrapper {
  color: var(--color-font-light);
  font-size: 0.9rem;
  margin-bottom: 1.75rem;
}

.breadcrumb {
  list-style: none;
}

.breadcrumb li {
  display: inline;
}

.breadcrumb li:not(:last-of-type):after {
  content: " / ";
}

/* ---------- Decoration ---------- */

.article-single p>a,
.article-single li>a {
  text-decoration: underline;
}

.article-single h1::first-letter {
  color: var(--color-accent);
  font-size: 125%;
}

.article-single h2 {
  border-top: 2px solid var(--color-accent);
  border-bottom: 2px solid var(--color-accent);
  padding: 0.5rem;
  text-align: center;
}

.article-single h3 {
  border-left: 0.5rem solid var(--color-bg-alter);
  padding: 0.5rem;
}

.article-single li {
  padding-left: 1.5em;
  text-indent: -1.5em;
}

.article-single ul li:before {
  color: var(--color-bg-alter);
  content: "\ea10";
  margin-right: 0.75em;
  font-family: "icomoon";
}

.article-single ul.ul-links li:before {
  content: "\ea34";
}

.article-single ol {
  counter-reset: num;
}

.article-single ol li:before {
  counter-increment: num;
  content: counter(num) ".";
  display: inline;
  color: var(--color-accent);
  margin-right: 0.75em;
}

/* ========================================
Main (index.php)
======================================== */

.main-index-inner {
  padding: 0 1rem;
}

.index-header-wrapper {
  padding: 3rem 0;
  text-align: center;
}

.index-catchphrase {
  color: var(--color-font-light);
  font-feature-settings: "palt";
  font-size: 0.9rem;
  margin-top: 1rem;
}

.index-menu-wrapper {
  display: block;
  /*Mobile*/
  margin-top: 50px;
}

.index-menu {
  background-color: #fff;
  border-radius: 0.5rem;
  flex: 1;
  padding: 1rem;
  text-align: center;
}

.index-menu:not(:last-child) {
  margin-bottom: calc(50px + 2rem);
}

.index-menu-icon {
  margin: calc((50px + 1rem) * -1) auto 1rem auto;
  width: 100px;
  height: 100px;
}

.index-menu-caption {
  font-feature-settings: "palt";
  font-family: var(--font-family-bold);
  font-weight: 600;
  font-size: 1.3rem;
  margin-bottom: 1rem;
}

.index-menu-btn {
  background-color: var(--color-font-base);
  border-radius: 0.25rem;
  color: #fff;
  font-feature-settings: "palt";
  font-family: var(--font-family-bold);
  font-weight: 600;
  font-size: 0.9rem;
  margin: 1rem 0.2rem 0 0.2rem;
  padding: 0.25rem 0.5rem;
}

.index-menu-btn-light {
  background-color: var(--color-font-light);
}

.index-ytchannel-wrapper {
  margin-top: 75px;
  text-align: center;
}

.index-movie-wrapper {
  margin: 0 auto;
  max-width: 640px;
}

.index-movie-iframe {
  width: 100%;
  height: 100%;
}

@media screen and (min-width: 768px) {
  .main-index-inner {
    padding: 0;
  }

  .index-menu-wrapper {
    display: flex;
    gap: 2rem;
  }

  .index-menu:not(:last-child) {
    margin-bottom: 0;
  }
}

/* ========================================
Main (info.phpや各種サブページ)
======================================== */

.eyecatch-simple-wrapper {
  text-align: center;
  width: 100%;
}

.article-single .faq-wrapper {
  margin-bottom: 1.75rem;
}

.article-single .faq-wrapper details {
  background-color: var(--color-accent-light);
  border-radius: 0.25rem;
  margin-bottom: 1rem;
  padding: 0.25rem 0.5rem;
}

.article-single .faq-wrapper summary {
  cursor: pointer;
  font-weight: 600;
}

.article-single .faq-wrapper details:hover {
  background-color: var(--color-bg-overlay);
}

.article-single .faq-wrapper p {
  border-top: 1px solid var(--color-accent);
  margin: 0.25rem 0 0 0;
  padding-top: 0.25rem;
}

.mail-confirm dt {
  font-weight: 600;
}

.mail-confirm dd {
  margin-bottom: 0.5rem;
}

/* ---------- Components ---------- */

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.label-required {
  color: var(--color-accent);
  font-weight: 300;
}

.form-textbox,
.form-select {
  border: 2px solid var(--color-bg-alter);
  border-radius: 0.25rem;
  display: block;
  padding: 0.25rem;
  width: 100%;
}

.form-select-wrapper {
  position: relative;
}

.form-select-wrapper:after {
  content: '';
  width: 9px;
  height: 9px;
  border-bottom: solid 3px var(--color-font-base);
  border-right: solid 3px var(--color-font-base);
  transform: rotate(45deg);
  position: absolute;
  top: 50%;
  right: 15px;
  margin-top: -6px;
}

.form-btn {
  background-color: var(--color-font-base);
  border-radius: 0.25rem;
  color: #fff;
  padding: 0.25rem 0.5rem;
  transition: 0.2s;
  white-space: nowrap;
}

.form-btn:hover {
  background-color: var(--color-font-heading);
  color: #fff;
}



/* ========================================
Aside
======================================== */

.aside-div:not(:last-child) {
  margin-bottom: 2rem;
}

.aside-mbottom {
  margin-bottom: 1rem;
}

.aside-mbottom-large {
  margin-bottom: 2rem;
}

.aside-inner p>a {
  text-decoration: underline;
}

.aside-inner h1,
.aside-inner h2,
.aside-inner h3,
.aside-inner h4,
.aside-inner h5,
.aside-inner h6 {
  color: var(--color-accent);
  font-feature-settings: "palt";
  font-family: var(--font-family-bold);
  font-size: 1.2rem;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 1.5rem;
}

.aside-inner h2 {
  border-bottom: 3px solid var(--color-accent);
  padding-bottom: 0.25em;
}

.aside-inner strong {
  font-family: var(--font-family-bold);
  font-weight: 600;
}

.aside-inner li {
  padding-left: 1.5em;
  text-indent: -1.5em;
}

.aside-inner ul li:before {
  color: var(--color-font-heading);
  content: "\ea10";
  margin-right: 0.75em;
  font-family: "icomoon";
}

.aside-inner ul.ul-links li:before {
  content: "\ea34";
}

.aside-img-wrapper {
  text-align: center;
}

.aside-img {
  max-width: 300px;
}

.aside-btn-wrapper {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  text-align: center;
}

.aside-btn {
  background-color: var(--color-font-base);
  border-radius: 0.25rem;
  color: #fff;
  padding: 0.25rem 0.5rem;
  transition: 0.2s;
  white-space: nowrap;
  width: 100%;
}

.aside-btn-icon {
  font-size: 1.5rem;
}

.aside-btn-caption {
  font-feature-settings: "palt";
  font-family: var(--font-family-bold);
  font-weight: 600;
}

.aside-btn:hover {
  background-color: var(--color-font-heading);
  color: #fff;
}

/* ========================================
Footer
======================================== */

.footer {
  color: var(--color-font-light);
  font-size: 0.9rem;
  text-align: center;
}

.footer-inner {
  display: block;
  /*Mobile*/
}

.footer-menu {
  display: flex;
  gap: 1rem;
  justify-content: center;
  /*Mobile*/
  margin-top: 1rem;
  /*Mobile*/
}

@media screen and (min-width: 768px) {
  .footer-inner {
    display: flex;
    justify-content: space-between;
  }

  .footer-menu {
    justify-content: flex-start;
    margin-top: 0;
  }
}

/* ========================================
This Theme Only
======================================== */

.flex-table {
  display: flex;
  flex-wrap: wrap;
  font-feature-settings: "palt";
  gap: 0.5rem;
  justify-content: center;
  text-align: center;
  margin-bottom: 1.75rem;
  line-height: 1.5;
}

.flex-table-col {
  background-color: var(--color-bg-overlay);
  border-radius: 0.25rem;
  flex-grow: 1;
  overflow: hidden;
}

.flex-table-head,
.flex-table-content {
  padding: 0.2rem 0.5rem;
}

.flex-table-head {
  background-color: var(--color-font-heading);
  color: #fff;
  font-family: var(--font-family-bold);
  font-weight: 600;
}