/* ==========================================
   TERASU Lab — Stylesheet
   TERASU本体（terasu.scale-group.co.jp）デザインシステム準拠
   ========================================== */

:root {
  /* TERASU本体カラー */
  --bg: #08080a;
  --w: #fff;
  --w2: rgba(255, 255, 255, .5);
  --w3: rgba(255, 255, 255, .22);
  --w4: rgba(255, 255, 255, .07);
  --w-soft: rgba(255, 255, 255, .55);
  --w-text: rgba(255, 255, 255, .85);

  /* TERASU本体グロー（暖色アクセント） */
  --glow: rgba(255, 200, 120, .12);
  --glow2: rgba(255, 180, 80, .08);
  --gold: rgba(255, 210, 140, 1);
  --gold-soft: rgba(255, 210, 140, .4);
  --gold-bg: rgba(255, 200, 120, .15);

  /* フォント（TERASU本体準拠） */
  --ff: 'Inter', 'Noto Sans JP', system-ui, -apple-system, sans-serif;
  --fd: 'Cormorant Garamond', serif;

  /* レイアウト */
  --container: 1200px;
  --transition: .3s ease;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--ff);
  color: var(--w3);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  font-size: 15px;
  line-height: 1.85;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; transition: var(--transition); }
img { max-width: 100%; display: block; }
::selection { background: var(--gold-bg); color: #fff; }

/* ==========================================
   HEADER
   ========================================== */

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 900;
  padding: .85rem clamp(1.5rem, 5vw, 3rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(8, 8, 10, .88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--w4);
}

.header-inner {
  max-width: var(--container);
  width: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-family: var(--fd);
}

.brand-logo {
  width: 26px;
  height: 26px;
}

.brand-text {
  font-size: .8rem;
  letter-spacing: .2em;
  color: var(--w-text);
  font-weight: 400;
}

.brand-accent {
  font-style: italic;
  color: var(--w2);
  font-weight: 300;
  font-size: .8rem;
  letter-spacing: .12em;
}

.nav-top {
  display: flex;
  align-items: center;
  gap: .15rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-top a {
  font-size: .72rem;
  letter-spacing: .06em;
  color: var(--w-text);
  font-weight: 500;
  transition: var(--transition);
  white-space: nowrap;
  padding: .5rem .9rem;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
}

.nav-top a:hover {
  color: var(--gold);
  background: rgba(255, 255, 255, .04);
}

.nav-top .nav-all {
  font-family: var(--fd);
  font-style: italic;
  color: var(--w2);
  margin-left: .5rem;
  padding-left: 1.25rem;
  border-left: 1px solid var(--w4);
  border-radius: 0 6px 6px 0;
}

.nav-top .nav-all:hover {
  color: var(--gold);
  background: transparent;
}

@media (max-width: 1100px) {
  .nav-top { display: none; }
}

/* ==========================================
   HERO
   ========================================== */

.hero {
  min-height: 70vh;
  display: flex;
  align-items: center;
  padding: 9rem clamp(1.5rem, 5vw, 3rem) 5rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--glow), transparent 65%);
  top: -120px;
  right: -120px;
  pointer-events: none;
  animation: heroGlow 6s ease-in-out infinite;
}

.hero::after {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--glow2), transparent 70%);
  bottom: -100px;
  left: -100px;
  pointer-events: none;
}

@keyframes heroGlow {
  0%, 100% { transform: scale(.95); opacity: .65; }
  50% { transform: scale(1.05); opacity: 1; }
}

.hero-inner {
  position: relative;
  max-width: var(--container);
  margin: 0 auto;
  width: 100%;
  z-index: 1;
}

.hero-eyebrow {
  font-family: var(--fd);
  font-size: .58rem;
  letter-spacing: .3em;
  color: var(--w2);
  text-transform: uppercase;
  margin-bottom: 1.75rem;
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  font-weight: 400;
}

.hero-eyebrow::before {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--w3);
}

.hero-title {
  font-family: var(--fd);
  font-size: clamp(2.4rem, 5vw, 4.4rem);
  font-weight: 300;
  color: var(--w);
  line-height: 1.2;
  letter-spacing: .015em;
  margin-bottom: 1.75rem;
  max-width: 900px;
}

.hero-title em {
  font-style: italic;
  color: var(--w2);
  font-weight: 300;
}

.hero-desc {
  font-size: .82rem;
  color: var(--w-soft);
  line-height: 2.1;
  max-width: 540px;
  margin-bottom: 3.5rem;
  letter-spacing: .01em;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(2rem, 4vw, 3.5rem);
  padding-top: 2rem;
  border-top: 1px solid var(--w4);
  max-width: 720px;
}

.meta-item {
  display: flex;
  flex-direction: column;
  gap: .55rem;
}

.meta-label {
  font-family: var(--fd);
  font-size: .5rem;
  font-weight: 400;
  color: var(--w3);
  letter-spacing: .28em;
  text-transform: uppercase;
}

.meta-value {
  font-family: var(--fd);
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--w);
  letter-spacing: .02em;
  line-height: 1;
}

/* ==========================================
   CATEGORIES
   ========================================== */

.categories {
  padding: 0 clamp(1.5rem, 5vw, 3rem) clamp(5rem, 10vw, 8rem);
}

.container {
  max-width: var(--container);
  margin: 0 auto;
}

.loading {
  text-align: center;
  padding: 6rem 0;
  color: var(--w3);
  font-family: var(--fd);
  font-size: .8rem;
  letter-spacing: .15em;
  font-style: italic;
}

.category {
  margin-bottom: clamp(5rem, 8vw, 7rem);
  scroll-margin-top: 80px;
}

.category-header {
  display: flex;
  align-items: baseline;
  gap: 1.25rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--w4);
}

.category-num {
  font-family: var(--fd);
  font-size: .58rem;
  font-weight: 400;
  color: var(--w3);
  letter-spacing: .25em;
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
}

.category-title {
  font-family: var(--fd);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 300;
  color: var(--w);
  letter-spacing: .03em;
  flex: 1;
}

.category-title-en {
  font-family: var(--fd);
  font-style: italic;
  color: var(--w3);
  font-weight: 300;
  font-size: .9rem;
  letter-spacing: .04em;
  margin-left: .9rem;
}

.category-count {
  font-family: var(--fd);
  font-size: .55rem;
  font-weight: 400;
  color: var(--w3);
  letter-spacing: .25em;
  text-transform: uppercase;
  flex-shrink: 0;
}

.category-desc {
  color: var(--w-soft);
  font-size: .78rem;
  line-height: 2;
  margin: 1.75rem 0 2.5rem;
  max-width: 720px;
  letter-spacing: .01em;
}

/* ==========================================
   CATEGORY HEADER LINK (TOP page)
   ========================================== */

.category-title-link {
  display: inline;
  color: inherit;
  transition: color .2s;
}

.category-title-link:hover {
  color: var(--gold);
}

.category-title-link:hover .category-title-en {
  color: rgba(255, 210, 140, .6);
}

/* ==========================================
   PAGE HEAD (category.html)
   ========================================== */

.page-head {
  position: relative;
  padding: 9rem clamp(1.5rem, 5vw, 3rem) 4rem;
  overflow: hidden;
}

.page-head::before {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--glow), transparent 65%);
  top: -150px;
  right: -150px;
  pointer-events: none;
  animation: heroGlow 6s ease-in-out infinite;
}

.page-head-inner {
  position: relative;
  max-width: var(--container);
  margin: 0 auto;
  z-index: 1;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: .6rem;
  font-family: var(--fd);
  font-size: .65rem;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--w3);
  margin-bottom: 2rem;
}

.breadcrumb a {
  color: var(--w3);
  transition: color .2s;
}

.breadcrumb a:hover { color: var(--gold); }
.breadcrumb-sep { color: var(--w4); }
.breadcrumb-current { color: var(--w-text); }

.page-eyebrow {
  font-family: var(--fd);
  font-size: .58rem;
  letter-spacing: .3em;
  color: var(--w2);
  text-transform: uppercase;
  margin-bottom: 1.25rem;
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  font-weight: 400;
}

.page-eyebrow::before {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--w3);
}

.page-title {
  font-family: var(--fd);
  font-size: clamp(2.4rem, 5vw, 4.2rem);
  font-weight: 300;
  color: var(--w);
  line-height: 1.15;
  letter-spacing: .02em;
  margin-bottom: 1.5rem;
}

.page-title-en {
  font-family: var(--fd);
  font-style: italic;
  color: var(--w3);
  font-weight: 300;
  font-size: .55em;
  letter-spacing: .04em;
  margin-left: 1rem;
  display: inline-block;
}

.page-desc {
  font-size: .85rem;
  color: var(--w-soft);
  line-height: 2.05;
  max-width: 720px;
  letter-spacing: .01em;
}

/* ==========================================
   CATEGORY FOOTER (TOP page)
   ========================================== */

.category-footer {
  margin-top: 2rem;
  display: flex;
  justify-content: center;
}

.view-all {
  position: relative;
  font-family: var(--fd);
  font-size: .82rem;
  letter-spacing: .14em;
  color: var(--w);
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem 2.2rem;
  background: linear-gradient(135deg, rgba(255,210,140,.08), rgba(255,210,140,.02));
  border: 1px solid var(--gold-soft);
  border-radius: 999px;
  transition: var(--transition);
  overflow: hidden;
  min-width: 280px;
  justify-content: space-between;
}

.view-all::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--gold), rgba(255,180,100,1));
  opacity: 0;
  transition: opacity .3s ease;
  z-index: 0;
}

.view-all-label,
.view-all-arrow {
  position: relative;
  z-index: 1;
  transition: var(--transition);
}

.view-all-arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 999px;
  background: var(--gold-bg);
  color: var(--gold);
}

.view-all:hover {
  border-color: var(--gold);
  color: #1a1208;
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(255,210,140,.18);
}

.view-all:hover::before {
  opacity: 1;
}

.view-all:hover .view-all-arrow {
  background: rgba(0,0,0,.15);
  color: #1a1208;
  transform: translateX(4px);
}

/* ==========================================
   ITEMS GRID
   ========================================== */

.items-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 1px;
  background: var(--w4);
  border: 1px solid var(--w4);
}

.item-card {
  background: var(--bg);
  padding: 1.6rem 1.5rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: .85rem;
  transition: var(--transition);
  position: relative;
  cursor: pointer;
  min-height: 175px;
  overflow: hidden;
}

.item-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, var(--glow2), transparent 70%);
  opacity: 0;
  transition: opacity .4s ease;
  pointer-events: none;
}

.item-card:hover {
  background: rgba(255, 255, 255, .015);
}

.item-card:hover::after {
  opacity: 1;
}

.item-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: .75rem;
  position: relative;
  z-index: 1;
}

.item-name {
  font-family: var(--fd);
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--w);
  letter-spacing: .02em;
  line-height: 1.3;
}

/* フォントカテゴリ用: フォント名自体をそのフォントで表示（サイズ大きめ） */
.item-name-font {
  font-size: 1.55rem;
  letter-spacing: .01em;
  line-height: 1.25;
}

/* ==========================================
   FILTER BAR（カテゴリ詳細ページ・タグ絞り込み）
   ========================================== */

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  padding-bottom: 1.75rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--w4);
}

.filter-chip {
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
  border: 1px solid var(--w4);
  color: var(--w-text);
  font-family: var(--fd);
  font-size: .68rem;
  letter-spacing: .14em;
  padding: .45rem .85rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  transition: var(--transition);
  white-space: nowrap;
  text-decoration: none;
  font-weight: 400;
}

.filter-chip:hover {
  border-color: rgba(255, 210, 140, .3);
  color: var(--gold);
}

.filter-chip-active {
  background: var(--gold-bg);
  border-color: var(--gold-soft);
  color: var(--gold);
}

.filter-count {
  font-family: 'JetBrains Mono', monospace;
  font-size: .58rem;
  color: var(--w3);
  letter-spacing: 0;
  font-feature-settings: 'tnum';
}

.filter-chip-active .filter-count {
  color: var(--gold);
  opacity: .75;
}

.filter-empty {
  text-align: center;
  padding: 4rem 0;
  color: var(--w3);
  font-family: var(--fd);
  font-size: .85rem;
  letter-spacing: .15em;
  font-style: italic;
}

@media (max-width: 768px) {
  .filter-bar {
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 1.25rem;
    margin-left: -1rem;
    margin-right: -1rem;
    padding-left: 1rem;
    padding-right: 1rem;
    scrollbar-width: none;
  }
  .filter-bar::-webkit-scrollbar { display: none; }
}

/* ==========================================
   UNIVERSAL MEDIA CARD（画像/アイコン/イラスト共通）
   ========================================== */

.items-grid:has(.card-media) {
  background: transparent;
  border: none;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}

.card-media {
  background: var(--bg2);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: var(--transition);
  position: relative;
}

.card-media:hover {
  border-color: var(--border2);
  background: var(--bg3);
}

.media-canvas {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  background: var(--bg);
  overflow: hidden;
  position: relative;
}

.media-canvas img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .5s ease;
}

.media-canvas:hover img {
  transform: scale(1.04);
}

.media-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  padding: 1rem 1.1rem .55rem;
}

.media-name {
  font-family: var(--fd);
  font-size: 1rem;
  font-weight: 400;
  color: var(--w);
  letter-spacing: .02em;
  line-height: 1.3;
  flex: 1;
  min-width: 0;
  overflow-wrap: break-word;
}

.media-name-mono {
  font-family: 'JetBrains Mono', monospace;
  font-size: .82rem;
  letter-spacing: .04em;
  font-feature-settings: 'tnum';
}

.media-actions {
  display: inline-flex;
  align-items: center;
  gap: .25rem;
  flex-shrink: 0;
}

.icon-btn {
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
  border: 1px solid var(--w4);
  color: var(--w-text);
  width: 32px;
  height: 32px;
  border-radius: 4px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  text-decoration: none;
}

.icon-btn:hover {
  border-color: var(--gold-soft);
  color: var(--gold);
  background: rgba(255, 200, 120, .06);
}

.icon-btn-mini {
  width: 26px;
  height: 26px;
}

.item-head-actions {
  display: inline-flex;
  align-items: center;
  gap: .25rem;
  flex-shrink: 0;
}

.media-note {
  padding: 0 1.1rem .85rem;
  font-size: .72rem;
  color: var(--w-soft);
  line-height: 1.85;
  letter-spacing: .01em;
}

.media-note-tight {
  padding-top: 0;
  font-family: var(--fd);
  font-size: .7rem;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--w3);
}

.card-media .item-meta {
  padding: 0 1.1rem 1rem;
  margin: 0;
}

/* 画像系: aspect-ratio をやや低く */
.card-media-image .media-canvas { aspect-ratio: 16 / 10; cursor: zoom-in; }

/* アイコン: 正方形・大きく中央表示 */
.card-media-icon .media-canvas {
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  cursor: pointer;
  transition: background .2s ease;
}

.card-media-icon .media-canvas:hover {
  background: rgba(255, 200, 120, .04);
}

.card-media-icon .media-canvas svg {
  color: var(--w);
  width: 44px;
  height: 44px;
  transition: color .25s ease, transform .25s ease;
}

.card-media-icon .media-canvas:hover svg {
  color: var(--gold);
  transform: scale(1.08);
}

.items-grid:has(.card-media-icon) {
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 1rem;
}

/* イラスト: 視認性重視・グラデ背景 + イラスト内色強化 */
.card-media-illust .media-canvas {
  aspect-ratio: 4 / 3;
  background:
    radial-gradient(ellipse at top right, rgba(255, 200, 120, .08), transparent 60%),
    radial-gradient(ellipse at bottom left, rgba(124, 58, 237, .05), transparent 60%),
    linear-gradient(135deg, #1f1d2e, #2a2438);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  position: relative;
  overflow: hidden;
}

.card-media-illust .media-canvas::before {
  content: '';
  position: absolute;
  inset: 8px;
  border: 1px solid rgba(255, 255, 255, .04);
  pointer-events: none;
}

.card-media-illust .media-canvas svg {
  width: 100%;
  height: 100%;
  max-height: 240px;
  position: relative;
  z-index: 1;
  filter: drop-shadow(0 0 12px rgba(255, 210, 140, .15));
}

/* 参考HP: SANKOU!風・スクショ大表示 + ホバーで詳細オーバーレイ */
.items-grid:has(.card-inspiration) {
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: 1.5rem;
}

.card-inspiration {
  border: 1px solid var(--border);
  background: var(--bg2);
  overflow: hidden;
}

.card-inspiration .media-canvas {
  aspect-ratio: 16 / 10;
  background: var(--bg3);
  position: relative;
  cursor: pointer;
  display: block;
}

.card-inspiration .media-canvas img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
  transition: transform .5s ease;
}

.card-inspiration .media-canvas:hover img {
  transform: scale(1.03);
}

/* スクショ上のホバーオーバーレイ */
.inspiration-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(8, 8, 10, .35), rgba(8, 8, 10, .92) 60%);
  opacity: 0;
  transition: opacity .35s ease;
  display: flex;
  align-items: flex-end;
  padding: 1.5rem;
  pointer-events: none;
}

.card-inspiration .media-canvas:hover .inspiration-overlay,
.card-inspiration .media-canvas:focus-visible .inspiration-overlay {
  opacity: 1;
}

.inspiration-overlay-inner {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: .9rem;
}

.hp-highlights {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: .35rem;
}

.hp-highlights li {
  font-family: var(--fd);
  font-size: .8rem;
  font-style: italic;
  color: var(--w);
  letter-spacing: .02em;
  padding-left: 1rem;
  position: relative;
  line-height: 1.55;
}

.hp-highlights li::before {
  content: '—';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--gold);
}

.hp-tags {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem;
}

.hp-tags .item-tag {
  background: rgba(255, 255, 255, .06);
  border-color: rgba(255, 255, 255, .15);
  color: var(--w);
}

.hp-cta {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-family: var(--fd);
  font-size: .65rem;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--gold);
  align-self: flex-start;
  padding-top: .35rem;
  border-top: 1px solid rgba(255, 210, 140, .25);
}

/* スクショ下のメタ（常時表示） */
.inspiration-foot {
  padding: 1rem 1.1rem 1rem;
}

.inspiration-name-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: .75rem;
}

.inspiration-domain {
  font-family: 'JetBrains Mono', monospace;
  font-size: .65rem;
  letter-spacing: .04em;
  color: var(--w3);
  margin-top: .35rem;
}

/* ==========================================
   UI COMPONENT CARD
   ========================================== */

.items-grid:has(.card-uicomp) {
  background: transparent;
  border: none;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
}

.card-uicomp {
  background: var(--bg2);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.ui-preview {
  background: var(--bg);
  padding: 2rem 1.5rem;
  border-bottom: 1px solid var(--border);
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ui-preview > * { width: 100%; }

/* デモ用 UI components */
.ui-demo-hero {
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: .65rem;
}

.ui-demo-eyebrow {
  font-family: var(--fd);
  font-size: .55rem;
  letter-spacing: .3em;
  color: var(--w2);
  text-transform: uppercase;
}

.ui-demo-title {
  font-family: var(--fd);
  font-size: 1.7rem;
  font-weight: 300;
  color: var(--w);
  letter-spacing: .02em;
  margin: 0;
  line-height: 1.2;
}

.ui-demo-title em {
  font-style: italic;
  color: var(--gold);
}

.ui-demo-desc {
  font-size: .75rem;
  color: var(--w-soft);
  line-height: 1.85;
  margin: 0;
}

.ui-demo-btns {
  display: flex;
  gap: .5rem;
  margin-top: .35rem;
}

.ui-demo-btn-primary, .ui-demo-btn-secondary {
  font-family: var(--fd);
  font-size: .65rem;
  letter-spacing: .12em;
  padding: .55rem 1.25rem;
  border: 1px solid;
  cursor: pointer;
  text-transform: uppercase;
  transition: var(--transition);
}

.ui-demo-btn-primary {
  background: var(--gold);
  color: var(--bg);
  border-color: var(--gold);
}

.ui-demo-btn-secondary {
  background: transparent;
  color: var(--w-text);
  border-color: var(--w4);
}

.ui-demo-pricing {
  text-align: center;
  padding: 1.25rem 1rem;
  border: 1px solid var(--w4);
  display: flex;
  flex-direction: column;
  gap: .65rem;
  align-items: center;
}

.ui-demo-pricing-label {
  font-family: var(--fd);
  font-size: .55rem;
  letter-spacing: .25em;
  color: var(--gold);
  text-transform: uppercase;
}

.ui-demo-pricing-price {
  font-family: 'JetBrains Mono', monospace;
  font-size: 2rem;
  font-weight: 600;
  color: var(--w);
  letter-spacing: -.01em;
}

.ui-demo-pricing-price span {
  font-size: .65rem;
  color: var(--w3);
  font-weight: 400;
  margin-left: .25rem;
}

.ui-demo-pricing-list {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: .7rem;
  color: var(--w-soft);
  line-height: 2;
}

.ui-demo-faq {
  width: 100%;
  border-bottom: 1px solid var(--w4);
  padding-bottom: .75rem;
}

.ui-demo-faq summary {
  font-family: var(--fd);
  font-size: .85rem;
  color: var(--w);
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 1.5rem;
}

.ui-demo-faq summary::after {
  content: '+';
  position: absolute;
  right: 0;
  top: -2px;
  color: var(--gold);
  transition: transform .25s ease;
  font-size: 1.1em;
}

.ui-demo-faq[open] summary::after {
  transform: rotate(45deg);
}

.ui-demo-faq-body {
  margin-top: .65rem;
  font-size: .7rem;
  color: var(--w-soft);
  line-height: 1.85;
}

.ui-demo-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  width: 100%;
  text-align: center;
}

.ui-demo-stat-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.7rem;
  font-weight: 600;
  color: var(--w);
  letter-spacing: -.02em;
  font-feature-settings: 'tnum';
}

.ui-demo-stat-num span {
  font-size: .55em;
  color: var(--w3);
  margin-left: .15em;
}

.ui-demo-stat-label {
  font-family: var(--fd);
  font-size: .58rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--w3);
  margin-top: .2rem;
}

/* Code Toggle */
.code-toggle {
  border-top: 1px solid var(--border);
  padding: 0 1.1rem;
}

.code-toggle summary {
  font-family: var(--fd);
  font-size: .65rem;
  letter-spacing: .15em;
  color: var(--w3);
  text-transform: uppercase;
  cursor: pointer;
  padding: .65rem 0;
  list-style: none;
}

.code-toggle summary:hover { color: var(--gold); }

.code-block {
  background: var(--bg);
  border: 1px solid var(--w4);
  padding: .8rem 1rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: .68rem;
  line-height: 1.7;
  color: var(--w-text);
  overflow-x: auto;
  margin: 0 0 1rem;
  border-radius: 4px;
}

/* ==========================================
   ANIMATION PREVIEW (autoplay loop)
   ========================================== */

.anim-stage {
  width: 100%;
  height: 140px;
  background: rgba(255, 255, 255, .02);
  border: 1px solid var(--w4);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.anim-stage::after {
  content: '▶ クリックで再生';
  position: absolute;
  bottom: .55rem;
  right: .65rem;
  font-family: var(--fd);
  font-size: .55rem;
  letter-spacing: .15em;
  color: rgba(255, 255, 255, .25);
  pointer-events: none;
  opacity: 0;
  transition: opacity .25s;
}

.anim-stage:hover::after {
  opacity: 1;
}

.anim-stage-row { gap: .55rem; }

.anim-stage-glow {
  background: radial-gradient(circle, rgba(255, 200, 120, .08), rgba(255, 255, 255, .015));
}

.anim-stage-cursor {
  cursor: none;
  font-family: var(--fd);
  font-size: .85rem;
  color: var(--w-soft);
  letter-spacing: .2em;
}

.anim-stage-curtain {
  background: rgba(255, 210, 140, .08);
}

.anim-target {
  width: 56px;
  height: 56px;
  background: var(--gold);
  display: inline-block;
}

.anim-target-circle {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: radial-gradient(circle, #ffffff 20%, rgba(255, 210, 140, 1) 80%);
}

.anim-target-text {
  font-family: var(--fd);
  font-size: 2.2rem;
  font-weight: 300;
  color: #fff;
  letter-spacing: .25em;
}

.anim-counter {
  font-family: 'JetBrains Mono', monospace;
  font-size: 3rem;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: -.04em;
  font-feature-settings: 'tnum';
}

.anim-curtain {
  position: absolute;
  inset: 0;
  background: #08080a;
  z-index: 2;
}

.anim-curtain-text {
  position: relative;
  z-index: 1;
  font-family: var(--fd);
  font-size: 2rem;
  color: var(--gold);
  letter-spacing: .25em;
}

.anim-cursor-dot {
  position: absolute;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--gold);
  pointer-events: none;
  transform: translate(-50%, -50%);
  transition: transform .14s ease-out, opacity .2s;
  opacity: 0;
  box-shadow: 0 0 20px rgba(255, 210, 140, .6);
  z-index: 5;
}

/* === keyframes（オートループ：表示→消えるサイクル） === */

.anim-fadeIn.is-running { animation: animFadeIn 2.4s ease-in-out infinite; }
.anim-slideUp.is-running { animation: animSlideUp 2.6s cubic-bezier(.2, .6, .2, 1) infinite; }
.anim-scaleIn.is-running { animation: animScaleIn 2.4s ease-in-out infinite; }
.anim-staggerItem.is-running { animation: animSlideUp 2.4s cubic-bezier(.2, .6, .2, 1) infinite; }
.anim-pulse.is-running { animation: animPulse 2.2s ease-in-out infinite; }
.anim-glowSun.is-running { animation: animGlowSun 3.2s ease-in-out infinite; }
.anim-revealMask.is-running { animation: animRevealMask 3s cubic-bezier(.7, 0, .2, 1) infinite; }

.anim-stage-curtain .anim-curtain { animation: animCurtain 4s ease-in-out infinite; }

.anim-magnetic { transition: transform .3s cubic-bezier(.2, .6, .4, 1); cursor: pointer; }
.anim-magnetic:hover { transform: translateY(-6px) scale(1.04); }

.anim-hoverLift { transition: transform .35s ease, box-shadow .35s ease; cursor: pointer; }
.anim-hoverLift:hover { transform: translateY(-8px); box-shadow: 0 16px 40px rgba(255, 200, 120, .25); }

@keyframes animFadeIn {
  0%, 8%, 92%, 100% { opacity: 0; transform: translateY(8px); }
  35%, 65% { opacity: 1; transform: translateY(0); }
}

@keyframes animSlideUp {
  0%, 8%, 92%, 100% { opacity: 0; transform: translateY(50px); }
  35%, 65% { opacity: 1; transform: translateY(0); }
}

@keyframes animScaleIn {
  0%, 8%, 92%, 100% { opacity: 0; transform: scale(.7); }
  35%, 65% { opacity: 1; transform: scale(1); }
}

@keyframes animPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 210, 140, .6); }
  50% { box-shadow: 0 0 0 22px rgba(255, 210, 140, 0); }
}

@keyframes animGlowSun {
  0%, 100% { transform: scale(.8); opacity: .55; box-shadow: 0 0 30px 8px rgba(255, 210, 140, .3); }
  50% { transform: scale(1.25); opacity: 1; box-shadow: 0 0 60px 30px rgba(255, 210, 140, .5); }
}

@keyframes animRevealMask {
  0%, 5% { clip-path: inset(0 100% 0 0); }
  40%, 70% { clip-path: inset(0 0 0 0); }
  95%, 100% { clip-path: inset(0 0 0 100%); }
}

@keyframes animCurtain {
  0%, 25% { transform: translateY(0); }
  50%, 80% { transform: translateY(-100%); }
  100% { transform: translateY(0); }
}

/* ==========================================
   TYPOGRAPHY CARD
   ========================================== */

.card-typo .typo-preview {
  background: var(--bg);
  padding: 2.25rem 1.75rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: .85rem;
  min-height: 220px;
}

.typo-eyebrow {
  font-family: var(--fd);
  font-size: .5rem;
  letter-spacing: .3em;
  color: var(--w3);
  text-transform: uppercase;
}

.typo-title {
  color: var(--w);
  margin: 0;
}

.typo-subtitle {
  font-family: var(--fd);
  font-size: .65rem;
  letter-spacing: .25em;
  color: var(--w2);
  text-transform: uppercase;
}

.typo-body {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: .8rem;
  line-height: 1.95;
  color: var(--w-soft);
  letter-spacing: .01em;
}

/* ==========================================
   FONT SAMPLE BLOCK
   ========================================== */

.font-sample-numbers {
  font-size: 1rem;
  font-weight: 500;
  color: var(--w-text);
  letter-spacing: .04em;
  font-feature-settings: 'tnum' 1, 'lnum' 1;
  line-height: 1.2;
  padding: .5rem 0 .45rem;
  border-top: 1px solid var(--w4);
  margin: -0.25rem 0 0;
  position: relative;
  z-index: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: clip;
}

.font-sample-block {
  margin: 0 0 .25rem;
  padding: .85rem 0;
  border-top: 1px solid var(--w4);
  border-bottom: 1px solid var(--w4);
  display: flex;
  flex-direction: column;
  gap: .35rem;
  position: relative;
  z-index: 1;
}

.font-sample-en {
  font-size: 1.05rem;
  color: var(--w-text);
  line-height: 1.4;
  letter-spacing: .005em;
}

.font-sample-ja {
  font-size: .92rem;
  color: var(--w-soft);
  line-height: 1.55;
  letter-spacing: .01em;
}

/* ==========================================
   IMAGE CARDS
   ========================================== */

.item-card-image {
  padding: 0;
  cursor: default;
  min-height: auto;
  overflow: hidden;
}

.item-card-image:hover { background: var(--bg); }
.item-card-image::after { display: none; }

.image-thumb {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--bg3);
  cursor: zoom-in;
}

.image-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .5s ease;
}

.image-thumb:hover img {
  transform: scale(1.04);
}

.image-body {
  padding: 1.25rem 1.4rem 1.3rem;
  display: flex;
  flex-direction: column;
  gap: .85rem;
}

.item-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
}

.action-btn {
  appearance: none;
  -webkit-appearance: none;
  background: var(--bg);
  border: 1px solid var(--w4);
  color: var(--w-text);
  font-family: var(--fd);
  font-size: .62rem;
  letter-spacing: .15em;
  padding: .45rem .7rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  text-transform: uppercase;
  transition: var(--transition);
  text-decoration: none;
}

.action-btn:hover {
  border-color: var(--gold-soft);
  color: var(--gold);
  background: rgba(255, 200, 120, .04);
}

.action-btn svg {
  flex-shrink: 0;
}

/* ==========================================
   ICON CARDS
   ========================================== */

.items-grid:has(.item-card-icon) {
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
}

.item-card-icon {
  appearance: none;
  -webkit-appearance: none;
  background: var(--bg);
  border: none;
  border-right: 1px solid var(--w4);
  border-bottom: 1px solid var(--w4);
  margin: 0;
  cursor: pointer;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: 1.5rem .75rem;
  min-height: 150px;
  font-family: inherit;
  color: var(--w-text);
  position: relative;
  transition: background .2s ease;
}

.item-card-icon::after { display: none; }

.item-card-icon:hover {
  background: rgba(255, 255, 255, .02);
}

.item-card-icon:hover .icon-preview {
  color: var(--gold);
  transform: scale(1.05);
}

.item-card-icon:hover .icon-copy-hint {
  opacity: 1;
}

.icon-preview {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: var(--w);
  transition: transform .25s ease, color .25s ease;
}

.icon-preview svg {
  width: 28px;
  height: 28px;
}

.icon-name {
  font-family: 'JetBrains Mono', monospace;
  font-size: .68rem;
  color: var(--w-text);
  letter-spacing: .04em;
  font-feature-settings: 'tnum';
}

.icon-label-ja {
  font-family: var(--fd);
  font-size: .58rem;
  color: var(--w3);
  letter-spacing: .12em;
}

.icon-copy-hint {
  font-family: var(--fd);
  font-size: .5rem;
  letter-spacing: .2em;
  color: var(--gold);
  text-transform: uppercase;
  opacity: 0;
  transition: opacity .25s ease;
  position: absolute;
  bottom: .5rem;
  left: 50%;
  transform: translateX(-50%);
  white-space: nowrap;
}

/* ==========================================
   PALETTE CARDS
   ========================================== */

.item-card-palette {
  cursor: default;
  min-height: auto;
  padding: 1.5rem 1.4rem 1.3rem;
}

.item-card-palette:hover {
  background: rgba(255, 255, 255, .015);
}

.item-card-palette::after { display: none; }

.palette-swatches {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--w4);
  border: 1px solid var(--w4);
  margin-top: .25rem;
}

.swatch {
  appearance: none;
  -webkit-appearance: none;
  background: var(--bg);
  border: none;
  display: flex;
  align-items: center;
  gap: .8rem;
  padding: .6rem .8rem;
  cursor: pointer;
  position: relative;
  transition: background .2s ease;
  text-align: left;
  width: 100%;
  font-family: inherit;
  color: var(--w-text);
}

.swatch:hover {
  background: rgba(255, 255, 255, .03);
}

.swatch:hover .swatch-copy-icon {
  opacity: 1;
  color: var(--gold);
}

.swatch-color {
  width: 28px;
  height: 28px;
  border-radius: 3px;
  background: var(--swatch-bg, transparent);
  border: 1px solid rgba(255, 255, 255, .15);
  flex-shrink: 0;
  display: block;
}

.swatch-info {
  display: flex;
  flex-direction: column;
  gap: 1px;
  flex: 1;
  min-width: 0;
}

.swatch-label {
  font-family: var(--fd);
  font-size: .55rem;
  letter-spacing: .15em;
  color: var(--w3);
  text-transform: uppercase;
}

.swatch-hex {
  font-family: 'JetBrains Mono', monospace;
  font-size: .72rem;
  color: var(--w-text);
  letter-spacing: .02em;
  font-feature-settings: 'tnum';
}

.swatch-copy-icon {
  color: var(--w3);
  flex-shrink: 0;
  opacity: 0;
  transition: opacity .2s ease, color .2s ease;
}

/* ==========================================
   PALETTE SPECTRUM (色相グラデ)
   ========================================== */

.palette-swatches-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(64px, 1fr));
  gap: 4px;
  background: transparent;
  border: none;
  margin-top: .25rem;
}

.swatch.swatch-tile {
  flex-direction: column;
  align-items: stretch;
  gap: 0;
  padding: 0;
  border: 1px solid var(--w4);
  border-radius: 4px;
  overflow: hidden;
  background: var(--bg);
}

.swatch.swatch-tile:hover {
  border-color: var(--gold, #c8a35c);
  background: var(--bg);
}

.swatch.swatch-tile .swatch-copy-icon {
  display: none;
}

.swatch-tile-color {
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  width: 100%;
  height: 52px;
  background: var(--swatch-bg, transparent);
  border: none;
  border-radius: 0;
  padding: 4px 6px;
  position: relative;
}

.swatch-tile-shade {
  font-family: 'JetBrains Mono', monospace;
  font-size: .55rem;
  letter-spacing: .02em;
  color: rgba(0, 0, 0, .55);
  background: rgba(255, 255, 255, .55);
  padding: 1px 4px;
  border-radius: 2px;
  font-weight: 600;
  mix-blend-mode: normal;
}

.swatch-tile-hex {
  font-family: 'JetBrains Mono', monospace;
  font-size: .58rem;
  letter-spacing: .02em;
  color: var(--w-text);
  padding: 5px 6px 6px;
  text-align: center;
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  background: var(--bg);
}

.item-card-spectrum .item-name {
  font-size: .95rem;
}

@media (max-width: 640px) {
  .palette-swatches-grid {
    grid-template-columns: repeat(auto-fill, minmax(56px, 1fr));
  }
  .swatch-tile-color { height: 44px; }
}

/* ==========================================
   TOAST
   ========================================== */

.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: rgba(8, 8, 10, .94);
  border: 1px solid var(--gold-soft);
  color: var(--gold);
  font-family: 'JetBrains Mono', var(--fd), monospace;
  font-size: .72rem;
  letter-spacing: .08em;
  padding: .65rem 1.25rem;
  border-radius: 100px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s ease, transform .25s ease;
  z-index: 1000;
  box-shadow: 0 8px 32px rgba(0, 0, 0, .4);
}

.toast.toast-show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.item-link-icon {
  color: var(--w3);
  flex-shrink: 0;
  transition: var(--transition);
  margin-top: 4px;
}

.item-card:hover .item-link-icon {
  color: var(--gold);
  transform: translateX(2px) translateY(-2px);
}

.item-note {
  font-size: .72rem;
  color: var(--w-soft);
  line-height: 1.95;
  flex: 1;
  position: relative;
  z-index: 1;
  letter-spacing: .01em;
}

.item-meta {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem;
  align-items: center;
  position: relative;
  z-index: 1;
  margin-top: .25rem;
}

.item-tag {
  font-family: var(--fd);
  font-size: .55rem;
  font-weight: 400;
  color: var(--w3);
  letter-spacing: .18em;
  padding: .15rem .55rem;
  border: 1px solid var(--w4);
  text-transform: uppercase;
}

.item-tag.tag-primary {
  color: var(--gold);
  border-color: var(--gold-soft);
  background: var(--gold-bg);
}

.item-license {
  font-family: var(--fd);
  font-size: .58rem;
  color: var(--w3);
  letter-spacing: .12em;
  font-style: italic;
}

/* ==========================================
   FOOTER
   ========================================== */

.footer {
  border-top: 1px solid var(--w4);
  padding: 2.5rem clamp(1.5rem, 5vw, 3rem) 1.5rem;
  margin-top: 4rem;
}

.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
}

.footer-logo {
  width: 18px;
  height: 18px;
  opacity: .35;
}

.footer-brand span {
  font-family: var(--fd);
  font-size: .58rem;
  color: var(--w3);
  letter-spacing: .22em;
}

.footer-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: .35rem;
}

.footer-meta span {
  font-family: var(--fd);
  font-size: .58rem;
  color: var(--w3);
  letter-spacing: .15em;
}

.footer-tagline {
  font-style: italic;
}

/* ==========================================
   RESPONSIVE
   ========================================== */

@media (max-width: 768px) {
  .hero { padding: 6.5rem 1.25rem 4rem; min-height: auto; }
  .hero-meta { gap: 1.5rem; padding-top: 1.5rem; }
  .meta-value { font-size: 1.15rem; }
  .meta-label { font-size: .48rem; }
  .category-header { flex-wrap: wrap; }
  .category-title-en { display: block; margin-left: 0; margin-top: .25rem; font-size: .8rem; }
  .items-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .footer-meta { align-items: flex-start; }
}