/* ==========================================================================
   Base Styles
   ========================================================================== */
/* ===========================
ブレークポイント定義
- Desktop: 1180px以上
=========================== */

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

:root {
  --color-accent: #FF1010;
  --color-primary: #422B22;
  --color-secondary: #604B42;
  --color-background: #fff;
  --color-background-menu: #DFFFB7;
  --color-background-pc: #F4F0E7;
  --min-width: 320px;
  --max-width: 430px;
  --pc-width: calc(var(--max-width) * 3);
  --spacing-md: 30px;
  --spacing-vertical: 25px;
  --card-width: 80%;
  --header-height: calc(56px + (var(--spacing-vertical) * 2));
  scroll-behavior: smooth;
}

html {
  font-size: 17px;
  line-height: 1.6;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Hiragino Sans", "Noto Sans JP", sans-serif;
  color: var(--color-primary);
  background-color: var(--color-background-pc);
  overflow-y: auto;
  overflow-x: hidden;
}

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

a, button {
  outline: none 0 transparent;
  -webkit-tap-highlight-color: transparent;
}

img {
  max-width: 100%;
  height: auto;
  display: inline-block;
  vertical-align: middle;
}

section {
  position: relative;
}

/* ==========================================================================
   Layout Container
   ========================================================================== */

.site-container {
  min-width: var(--min-width);
  max-width: var(--max-width);
  margin: 0 auto;
  background: var(--color-background) url(../images/bg.webp) scroll top center repeat;
  background-size: 568px auto;
  min-height: 100vh;
  position: relative;
  
  font-family: "Zen Kaku Gothic New", sans-serif;
  font-weight: 500;
  font-style: normal;
  
  box-shadow: 0 0 1em rgba(0, 0, 0, 0.1);
  padding-top: var(--header-height);
}

.site-container::before,
.site-container::after {
  content: '';
  display: block;
  position: fixed;
  top: 0;
  right: 50%;
  opacity: 0;
  width: 100%;
  height: 100%;
  max-width: calc(var(--max-width) - var(--spacing-md));
  pointer-events: none;
  transition: opacity 0.3s ease;
  transform: translate(calc(-1 * (var(--max-width) / 2)), 0);
}

@media screen and (min-width: 1280px) and (min-height: 520px) {
  .site-container::before,
  .site-container::after {
    opacity: 1;
    background: transparent url(../images/side_title_en1.svg) no-repeat left 51%;
    background-size: auto;
    z-index: 1;
  }
  
  .site-container::after {
    background-image: url(../images/7.webp);
    background-position: left center;
    background-size: 90% auto;
    z-index: 0;
  }
}


/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  min-width: var(--min-width);
  max-width: var(--max-width);
  height: var(--header-height);
  border-bottom: 0 none;
  z-index: 1000;
  padding: 0 var(--spacing-md);
  /* backdrop-filter: blur(0.1em) contrast(0.98) brightness(1.03); */
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
}

.site-title {
  font-size: 1.25rem;
  font-weight: 700;
}

.site-title a {
  color: #FF1010;
  display: inline-block;
  position: relative;
  top: -10px;
  left: 0;
}

/* ==========================================================================
   Hamburger Menu Button
   ========================================================================== */

.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.menu-toggle-bar {
  display: block;
  width: 43px;
  height: 13px;
  background: transparent none no-repeat center center;
  background-size: 100% auto;
  transition: transform 0.1s ease, opacity 0.3s ease;
}

.menu-toggle .menu-toggle-bar:nth-child(1) {
  background-image: url(../images/menu1.svg);
}

.menu-toggle .menu-toggle-bar:nth-child(2) {
  background-image: url(../images/menu2.svg);
}

/* Hamburger to X animation */
.menu-toggle.is-active .menu-toggle-bar:nth-child(1) {
  transform: translateY(58%) rotate(20deg);
}

.menu-toggle.is-active .menu-toggle-bar:nth-child(2) {
  transform: translateY(-58%) rotate(-20deg);
}

@media screen and (min-width: 1080px) and (min-height: 520px) {
  .menu-toggle {
    display: none;
  }
}

/* ==========================================================================
   Navigation Menu
   ========================================================================== */

.main-nav {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  min-width: var(--min-width);
  max-width: var(--max-width);
  color: var(--color-accent);
  background-color: var(--color-background-menu);
  height: 0;
  overflow: hidden;
  transition: height 0.3s ease;
  z-index: 999;
}

.main-nav.is-open {
  height: 100%;
  overflow: hidden;
  overflow-y: auto;
}

.nav-list {
  list-style: none;
  padding: var(--header-height) 0 calc(var(--spacing-vertical) * 2);
}

.nav-item a {
  display: block;
  padding: var(--spacing-md);
  transition: background-color 0.2s ease;
}

.nav-item:last-child a {
  border-bottom: none;
}

.nav-item a:hover {
  background-color: var(--color-background);
}

.nav-item .section-title {
  margin: 0;
  padding-top: calc(var(--spacing-md) * 0.5);
  padding-bottom: calc(var(--spacing-md) * 0.5);
}

@media screen and (min-width: 1080px) and (min-height: 520px) {
  .main-nav {
    left: 50%;
    transform: translate(50%, 0);
    position: fixed;
    display: flex;
    flex-direction: column-reverse;
    height: 100%;
    background-color: transparent;
    margin-right: calc(var(--spacing-md) * -1);
  }

  .nav-list a {
    list-style: none;
    padding: var(--header-height) 0 calc(var(--spacing-vertical) * 2);
    transform-origin: center bottom;
    transform: scale(75%);
  }
  
  .nav-list .nav-item-button a.btn-styled {
    transform: translate(calc(var(--spacing-md) * -1), 0) scale(70%);
    margin: 0 auto;
  }

}

/* ==========================================================================
   Main Content
   ========================================================================== */

.site-main {
  padding-top: 0;
  padding-bottom: var(--spacing-vertical);
}

/* ==========================================================================
  Section
  ========================================================================== */
.section-title {
  text-align: left;
  color: var(--color-accent);
  font-weight: 700;
  letter-spacing: 0;
  margin-bottom: var(--spacing-vertical);
  user-select: none;
}

.section-title p {
  font-size: 0.95em;
  margin: .5em 0 0;
}

.section-anchor {
  position: absolute;
  top: calc(var(--header-height) * -0.5);
}

/* ==========================================================================
   Article Cards
   ========================================================================== */

.article-cards {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.article-card {
  display: block;
}

.card-thumbnail {
  display: block;
  width: 100%;
  aspect-ratio: 262 / 200;
  background-color: transparent;
  box-sizing: border-box;
  position: relative;
  margin-top: 8px;
}

.card-thumbnail::before {
  content: '';
  position: absolute;
  top: 50.5%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: block;
  width: 101%;
  height: 101%;
  background: transparent url(../images/rect1.svg) no-repeat 0 0;
  background-size: 100% auto;
  z-index: 1;
}

.card-thumbnail > img {
  width: 100%;
  aspect-ratio: 262 / 200;
  object-fit: cover;
  border-radius: 9%;
  overflow: hidden;
  background-color: transparent;
  box-sizing: border-box;
  position: relative;
}

.article-card:hover .card-thumbnail > img {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.card-content {
  padding-top: 0.5em;
}

.card-category {
  padding: 0.2em 0;
}

.card-category span {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.02em;
  color: #84746D;
  border: 1px solid #84746D;
  border-radius: 0.3em;
  padding: 0.1em 0.5em;
}

.card-category span + span {
  margin-left: 1em;
}

.card-title {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  margin: 0.2em 0;
}

.card-meta {
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--color-secondary);
  color: #9B9B9B;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Hiragino Sans", "Noto Sans JP", sans-serif;
}

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

.site-footer {
  background: transparent url(../images/bg_footer.svg) no-repeat scroll top right;
  min-height: calc(var(--spacing-vertical) * 12);
  position: relative;
  display: flex;
  flex-direction: row;
  align-items: flex-end;
}

.site-footer-inner {
  width: 100%;
  text-align: left;
  color: var(--color-accent);
  font-size: 0.875rem;
  mix-blend-mode: color-burn;
  padding: var(--spacing-vertical) var(--spacing-md) calc(var(--spacing-vertical) * 3);
  background: transparent url(../images/title.svg) no-repeat scroll bottom left;
  background-size: 100% auto;
}

.site-footer .footer-link {
  margin: calc(var(--spacing-md) * 0.5) 0;
}

.site-footer .footer-link a {
  text-decoration: underline;
  font-weight: 700;
}

.site-footer .copyright {
  margin-bottom: calc(var(--spacing-md) * 0.5);
}

/* ==========================================================================
   Overlay (for menu backdrop)
   ========================================================================== */

.menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.3);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  z-index: 998;
}

.menu-overlay.is-visible {
  opacity: 1;
  visibility: visible;
}


/* ==========================================================================
   Bottom Navigation
   ========================================================================== */

.bottom-nav {
	position: sticky;
	bottom: 0;
	left: 0;
	width: 100%;
  z-index: 998;
}

.bottom-nav-inner {
  position: absolute;
  bottom: 0;
  left: 0;
	width: 100%;
  padding: var(--spacing-vertical) var(--spacing-md);
  
  display: flex;
  flex-direction: row-reverse;
  pointer-events: none;
}

/* ページトップへ戻るボタン */
.btn-gotop {
  position: relative;
  display: inline-block;
  width: 57px;
  height: 57px;
  overflow: hidden;
  background: transparent url(../images/btn_home1.svg) no-repeat center center;
  background-size: contain;
  pointer-events: visible;
}

.btn-gotop > span {
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  opacity: 0;
}

/* 前のページへ戻るボタン */
.btn-backtop {
  display: inline-block;
  width: 102px;
  height: 32px;
  background: transparent url(../images/btn_top1.svg) no-repeat 0 0;
  background-size: contain;
  position: relative;
}

.btn-backtop > span {
  opacity: 0;
  position: absolute;
  top: 0;
  left: 0;
}


/* ==========================================================================
   Button
   ========================================================================== */
.btn-styled,
.nav-item a.btn-styled {
  display: flex;
  appearance: none;
  width: 100%;
  aspect-ratio: 331 / 72;
  background: transparent url(../images/bg_btn1.svg) no-repeat center center;
  background-size: contain;
  justify-content: center;
  align-items: center;
  color: var(--color-accent);
  border: 0 none;
  outline: 0 rgba(0, 0, 0, 0);
  box-sizing: border-box;
  padding: 0.01em 0 0.15em;
  margin: 1em auto;
  cursor: pointer;
}

.nav-item a.btn-styled {
  max-width: calc(100% - var(--spacing-md) * 2);
  aspect-ratio: 335 / 73;
  background-image: url(../images/bg_btn2.svg);
}

.btn-styled span {
  font-size: 17px;
  letter-spacing: 0.04em;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Hiragino Sans", "Noto Sans JP", sans-serif;
  font-weight: 700;
  letter-spacing: 0.06em;
  pointer-events: none;
}

.icon-outlink {
  display: inline-block;
  width: 1em;
  height: 1em;
  background: transparent url(../images/arrow_outerlink1.svg) no-repeat center center;
  background-size: contain;
  vertical-align: middle;
  margin: 0 0 0 .5em;
}

/* WordPress Block Button */
.wp-block-button__link.wp-element-button {
  background-color: #ffffff;
  color: #32373c;
}

.wp-block-buttons.invert .wp-block-button__link.wp-element-button {
  background-color: #32373c;
  color: #ffffff;
}