/* ===== Hamburger ===== */
#menu-toggle.hamburger { margin: 0; }

.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 20px;
  height: 16px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.hamburger span {
  width: 100%;
  height: 1.5px;
  background-color: var(--text);
  transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) { transform: translateY(9px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

/* ===== Side menu ===== */
#side-menu {
  position: fixed;
  top: var(--header-h);
  right: -240px;
  width: 240px;
  height: calc(100vh - var(--header-h));
  background: rgba(255, 255, 255, 0.95);
  z-index: 1100;
  transition: right 0.3s ease;
  overflow-y: auto;
  box-shadow: 50px 10px 20px rgba(0, 0, 0, 0.1);

    /* =================================================
     Menu knobs
     新設計:
       1) Top links  : Bio / News
       2) Works      : 親カテゴリ / 子カテゴリ
       3) GlobalTags : 横並びチップ
       4) Sort       : Sort by + controls
  ================================================= */

  /* --- shell --- */
  --menu-padding: 20px;
  --menu-section-gap: 32px;
  --menu-gap-news-works: 28px;
  --menu-gap-before-sort: 0px;

  /* --- top links: Bio / News --- */
  --menu-gap-bio-news: 28px;
  --top-link-font-size: 14px;
  --top-link-line-height: 1.15;
  --top-link-font-weight: 500;
  --top-link-padding-y: 0px;
  --top-link-padding-x: 0px;
  --top-link-color: rgba(0, 0, 0, 0.78);
  --top-link-hover-color: #111;

  /* --- headings --- */
  --menu-h2-size: 14px;     /* Works */
  --menu-h2-weight: 500;
  --menu-h2-gap: 12px;       /* Works 見出し → 最初の項目 */
  --menu-h3-size: 11px;     /* Sort by */
  --menu-h3-gap: 10px;
  --menu-h3-weight: 400;

  /* --- Works: block gaps --- */
  --works-parent-block-gap: 5px;
  --works-parent-last-gap: var(--works-parent-block-gap);
  --works-all-after-gap: 24px;      /* All -> 次の項目 */
  --works-parent-open-children-gap: 6px;
  --works-child-item-gap: 5px;
  --works-child-end-gap: 12px;

  /* --- Works: typography / visuals --- */
  --works-item-padding-y: 0px;
  --works-item-padding-x: 0px;
  --works-parent-font-size: 14px;
  --works-parent-line-height: 2.2;
  --works-parent-font-weight: 400;
  --works-parent-color: var(--text);
  --works-parent-toggle-size: 15px;
  --works-parent-toggle-color: rgba(0,0,0,0.6);
  --works-parent-prefix: '・';
  --works-parent-prefix-gap: 6px;
  --works-parent-prefix-color: rgba(0,0,0,0.35);
  --works-parent-prefix-size: 12px;
  --works-parent-prefix-weight: 400;
  --works-parent-prefix-y: 0px;

  --works-child-font-size: 12px;
  --works-child-line-height: 1.3;
  --works-child-font-weight: 400;
  --works-child-color: rgba(0, 0, 0, 0.62);
  --works-child-hover-color: rgba(0, 0, 0, 0.85);
  --works-child-indent: 30px;

  /* --- GlobalTags chips --- */
  --works-global-tags-margin-top: 10px;
  --works-global-tags-gap: 4px;
  --works-global-tag-min-height: 18px;
  --works-global-tag-padding-x: 6px;
  --works-global-tag-font-size: 10px;
  --works-global-tag-line-height: 1;
  --works-global-tag-letter-spacing: -0.01em;
  --works-global-tag-font-weight: 400;
  --works-global-tag-color: rgba(0, 0, 0, 0.72);
  --works-global-tag-border: 1px solid rgba(0, 0, 0, 0.10);
  --works-global-tag-radius: 999px;
  --works-global-tag-bg: transparent;

  /* --- Sort --- */
  --sort-block-padding-y: 0px;
  --sort-block-padding-x: 0px;
  --sort-item-font-size: 13px;
  --sort-item-line-height: 1.2;
  --sort-item-padding-y: 2px;
  --sort-item-padding-x: 0px;
  --sort-item-color: rgba(0,0,0,0.72);
  --sort-item-hover-color: #111;
  --sort-item-active-color: #111;
  --sort-item-active-weight: 600;
  --sort-item-gap-x: 14px;
  --sort-item-gap-y: 6px;
  --sort-arrow-font-size: 18px;
  --sort-arrow-padding-y: 0px;
  --sort-arrow-padding-x: 6px;
  --sort-arrow-color: rgba(0,0,0,0.65);
  --sort-arrow-hover-color: #111;
  --sort-arrow-active-color: #111;
  --sort-direction-gap-y: 10px;
}

#side-menu.active { right: 0; }

#side-menu .menu-container {
  padding: var(--menu-padding);
}

/* ===== Section spacing ===== */
#side-menu .menu-container > .menu-section {
  margin-bottom: var(--menu-section-gap);
}

#side-menu .menu-container > .menu-section:first-child {
  margin-bottom: var(--menu-gap-news-works);
}

#side-menu .menu-section.sort-options {
  margin-top: var(--menu-gap-before-sort);
  padding: var(--sort-block-padding-y) var(--sort-block-padding-x);
}

/* ===== Shared headings ===== */
#side-menu .menu-section.sort-options h3 {
  margin: 0 0 var(--menu-h3-gap) 0;
  font-size: var(--menu-h3-size);
  line-height: 1.2;
  font-weight: var(--menu-h3-weight);
}

/* ===== Top links: Bio / News ===== */
#side-menu .menu-container > .menu-section:first-child ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

#side-menu .menu-container > .menu-section:first-child ul li {
  list-style: none;
  margin: 0 !important;
  padding: 0;
}

#side-menu .menu-container > .menu-section:first-child ul li + li {
  margin-top: var(--menu-gap-bio-news) !important;
}

#side-menu .menu-container > .menu-section:first-child ul li a,
#side-menu .menu-container > .menu-section:first-child ul li span[aria-current="page"] {
  display: block;
  font-size: var(--top-link-font-size);
  line-height: var(--top-link-line-height);
  font-weight: var(--top-link-font-weight);
  padding: var(--top-link-padding-y) var(--top-link-padding-x);
  color: var(--top-link-color);
  text-decoration: none;
}

#side-menu .menu-container > .menu-section:first-child ul li a:hover {
  color: var(--top-link-hover-color);
  opacity: 0.75;
}

#side-menu .menu-container > .menu-section:first-child ul li span[aria-current="page"] {
  color: var(--top-link-color);
  opacity: 0.55;
}

#side-menu .menu-section h2 {
  font-size: var(--menu-h2-size);
  margin: 0 0 var(--menu-h2-gap) 0;
  font-weight: var(--menu-h2-weight);
  line-height: 1.2;
}

/* ===== Works menu ===== */
#side-menu .menu-section.works-menu ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

#side-menu .menu-section.works-menu li {
  list-style: none;
  margin: 0 !important;
  padding: 0;
}

#side-menu .menu-section.works-menu li::marker {
  content: "";
}

#side-menu .menu-section.works-menu li.category-item:not(.category-tags-inline) {
  margin-bottom: var(--works-parent-block-gap) !important;
}

#side-menu .menu-section.works-menu li.category-item:not(.category-tags-inline):last-child {
  margin-bottom: var(--works-parent-last-gap) !important;
}

#side-menu .menu-section.works-menu .category-title {
  display: block;
  position: relative;
  padding:
    var(--works-item-padding-y)
    var(--works-item-padding-x)
    var(--works-item-padding-y)
    calc(var(--works-parent-prefix-gap) + var(--works-parent-prefix-size) + 2px);
  font-size: var(--works-parent-font-size);
  line-height: var(--works-parent-line-height);
  font-weight: var(--works-parent-font-weight);
  color: var(--works-parent-color);
  text-decoration: none;
}

#side-menu .menu-section.works-menu .category-title::before {
  content: var(--works-parent-prefix);
  position: absolute;
  left: 0;
  top: calc(50% + var(--works-parent-prefix-y));
  transform: translateY(-50%);
  font-size: var(--works-parent-prefix-size);
  font-weight: var(--works-parent-prefix-weight);
  color: var(--works-parent-prefix-color);
  line-height: 1;
}

/* 開閉記号は子を持つ親カテゴリだけに出す */
#side-menu .menu-section.works-menu .category-title::after {
  content: "";
}

#side-menu .menu-section.works-menu .category-title[data-category^="parent:"]::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: var(--works-parent-toggle-size);
  color: var(--works-parent-toggle-color);
  line-height: 1;
}

#side-menu .menu-section.works-menu .category-title[data-category^="parent:"].active::after,
#side-menu .menu-section.works-menu .category-title[data-category^="parent:"].is-open::after,
#side-menu .menu-section.works-menu .category-title[data-category^="parent:"].open::after {
  content: "−";
}

#side-menu .menu-section.works-menu .category-tags-inline {
  display: block;
}

#side-menu .menu-section.works-menu .category-title.category-all {
  margin-bottom: var(--works-all-after-gap);
}

#side-menu .menu-section.works-menu .subcategory-list {
  display: none;
  margin: 0;
  padding: 0 0 0 var(--works-child-indent);
}

#side-menu .menu-section.works-menu .category-title + .subcategory-list.visible {
  margin-top: var(--works-parent-open-children-gap);
}

#side-menu .menu-section.works-menu .subcategory-list.visible {
  display: block;
}

#side-menu .menu-section.works-menu .subcategory-list li {
  margin: 0 !important;
  padding: 0;
}

#side-menu .menu-section.works-menu .subcategory-list li + li {
  margin-top: var(--works-child-item-gap) !important;
}

#side-menu .menu-section.works-menu .subcategory-list li:last-child {
  margin-bottom: var(--works-child-end-gap) !important;
}

#side-menu .menu-section.works-menu .subcategory-list a {
  display: block;
  padding: var(--works-item-padding-y) var(--works-item-padding-x);
  font-size: var(--works-child-font-size);
  line-height: var(--works-child-line-height);
  font-weight: var(--works-child-font-weight);
  color: var(--works-child-color);
  text-decoration: none;
}

#side-menu .menu-section.works-menu .subcategory-list a:hover {
  color: var(--works-child-hover-color);
}

/* ===== GlobalTags chips ===== */
#side-menu .menu-section.works-menu .category-tags-inline {
  margin-top: var(--works-global-tags-margin-top);
  margin-bottom: 0 !important;
  list-style: none;
}

#side-menu .menu-section.works-menu .category-tags-inline-list {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: var(--works-global-tags-gap);
  margin: 0;
  padding: 0;
}

#side-menu .menu-section.works-menu .category-tag-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--works-global-tag-min-height);
  padding: 0 var(--works-global-tag-padding-x);
  font-size: var(--works-global-tag-font-size);
  line-height: var(--works-global-tag-line-height);
  letter-spacing: var(--works-global-tag-letter-spacing);
  font-weight: var(--works-global-tag-font-weight);
  color: var(--works-global-tag-color);
  text-decoration: none;
  white-space: nowrap;
  border: var(--works-global-tag-border);
  border-radius: var(--works-global-tag-radius);
  background: var(--works-global-tag-bg);
  box-sizing: border-box;
}

#side-menu .menu-section.works-menu .category-tag-chip.is-empty {
  opacity: 0.32;
}

#side-menu .menu-section.works-menu .category-tag-chip:hover,
#side-menu .menu-section.works-menu .category-tag-chip.active {
  opacity: 1;
}

/* ===== Sort ===== */
#side-menu .sort-options ul {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sort-item-gap-y) var(--sort-item-gap-x);
  list-style: none;
  margin: 0;
  padding: 0;
}

#side-menu .sort-options ul li {
  list-style: none;
  margin: 0 !important;
  padding: 0;
}

#side-menu .sort-options ul li a {
  display: block;
  padding: var(--sort-item-padding-y) var(--sort-item-padding-x);
  font-size: var(--sort-item-font-size);
  line-height: var(--sort-item-line-height);
  color: var(--sort-item-color);
  text-decoration: none;
}

#side-menu .sort-options ul li a:hover {
  color: var(--sort-item-hover-color);
}

#side-menu .sort-options a.active {
  color: var(--sort-item-active-color);
  font-weight: var(--sort-item-active-weight);
}

#side-menu .sort-direction {
  margin-top: var(--sort-direction-gap-y);
}

#side-menu .sort-direction a {
  display: inline-block;
  padding: var(--sort-arrow-padding-y) var(--sort-arrow-padding-x);
  font-size: var(--sort-arrow-font-size);
  line-height: 1;
  color: var(--sort-arrow-color);
  text-decoration: none;
}

#side-menu .sort-direction a:hover {
  color: var(--sort-arrow-hover-color);
}

#side-menu .sort-direction a.active {
  color: var(--sort-arrow-active-color);
}