/* ==========================================
   TERASU Curated — 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: 1.6rem;
}

.nav-top a {
  font-size: .72rem;
  letter-spacing: .04em;
  color: var(--w-text);
  font-weight: 500;
  transition: color .2s;
}

.nav-top a:hover { color: var(--gold); }

@media (max-width: 900px) {
  .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;
}

/* ==========================================
   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;
}

.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; }
}