/* =============================================
   片倉兼太郎商会 v2
   Design: 本格京都和風
   ============================================= */

/* ── TOKENS ── */
:root {
  --white:  #fdfcfa;
  --black:  #0d0b09;
  --stone:  #f2efe9;
  --ash:    #d8d3cc;
  --gray:   #2e2c2a;
  --gold:   #b89060;
  --gold-f: rgba(184, 144, 96, 0.12);
}

/* ── RESET ── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: '游明朝', 'Yu Mincho', 'Noto Serif JP', 'Hiragino Mincho ProN', serif;
  background: var(--white);
  color: var(--black);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
.en { font-family: 'EB Garamond', Georgia, serif; }

/* ── NAVIGATION ── */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 500;
  transition: background 0.5s, border-color 0.5s;
  border-bottom: 1px solid transparent;
}
.site-nav.is-scrolled {
  background: rgba(253, 252, 250, 0.97);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--ash);
}
.nav-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 3rem;
  height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  transition: opacity 0.3s;
}
.nav-logo:hover { opacity: 0.65; }
.nav-logo-crest {
  height: 46px;
  width: 46px;
  object-fit: contain;
  display: block;
  flex-shrink: 0;
  transition: filter 0.5s, opacity 0.5s;
}
.site-nav:not(.is-scrolled) .nav-logo-crest { filter: invert(1); opacity: 0.8; }
.site-nav.is-scrolled .nav-logo-crest { mix-blend-mode: multiply; }
.nav-logo-jp {
  font-size: clamp(12px, 1.2vw, 15px);
  font-weight: 400;
  letter-spacing: 0.18em;
  line-height: 1;
  white-space: nowrap;
  transition: color 0.5s;
}
.site-nav:not(.is-scrolled) .nav-logo-jp { color: rgba(255,255,255,0.9); }
.site-nav.is-scrolled .nav-logo-jp { color: var(--black); }

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  list-style: none;
}
.nav-menu a {
  font-size: 12px;
  letter-spacing: 0.22em;
  text-decoration: none;
  transition: opacity 0.25s, color 0.5s;
}
.site-nav:not(.is-scrolled) .nav-menu a { color: rgba(255,255,255,0.8); }
.site-nav.is-scrolled .nav-menu a { color: var(--black); }
.nav-menu a:hover { opacity: 0.5; }
.nav-menu a.nav-contact {
  padding: 8px 20px;
  border: 1px solid currentColor;
  opacity: 1 !important;
}
.site-nav:not(.is-scrolled) .nav-menu a.nav-contact:hover { background: rgba(255,255,255,0.1); }
.site-nav.is-scrolled .nav-menu a.nav-contact:hover { background: var(--black); color: var(--white); }

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  padding: 4px;
  border: none;
  background: none;
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 1px;
  transition: background 0.5s;
}
.site-nav:not(.is-scrolled) .nav-hamburger span { background: rgba(255,255,255,0.85); }
.site-nav.is-scrolled .nav-hamburger span { background: var(--black); }

.nav-mobile {
  display: none;
  flex-direction: column;
  padding: 0 1.5rem 1.5rem;
  background: var(--white);
  border-top: 1px solid var(--ash);
}
.nav-mobile.open { display: flex; }
.nav-mobile a {
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--black);
  text-decoration: none;
  padding: 1rem 0;
  border-bottom: 1px solid var(--ash);
  transition: opacity 0.2s;
}
.nav-mobile a:last-child { border-bottom: none; }
.nav-mobile a:hover { opacity: 0.5; }

/* ── PAGE HERO (sub pages) ── */
.page-hero {
  padding-top: 84px;
  height: 52vh;
  min-height: 340px;
  background: var(--black);
  display: flex;
  align-items: flex-end;
  padding-bottom: 5rem;
  padding-left: 3rem;
  padding-right: 3rem;
  position: relative;
  overflow: hidden;
}
.page-hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: rgba(184, 144, 96, 0.2);
}
.page-hero-inner {
  max-width: 1080px;
  width: 100%;
  margin: 0 auto;
}
.page-hero-label {
  font-family: 'EB Garamond', serif;
  font-size: 10px;
  letter-spacing: 0.65em;
  color: var(--gold);
  text-transform: uppercase;
  display: block;
  margin-bottom: 1.25rem;
}
.page-hero-title {
  font-size: clamp(30px, 4vw, 56px);
  font-weight: 300;
  letter-spacing: 0.22em;
  color: var(--white);
  line-height: 1.4;
}

/* ── SECTION BASE ── */
.section { padding: 130px 3rem; }
.section-inner { max-width: 1080px; margin: 0 auto; }
.section-label {
  font-family: 'EB Garamond', serif;
  font-size: 10px;
  letter-spacing: 0.65em;
  color: var(--gold);
  text-transform: uppercase;
  display: block;
  margin-bottom: 2rem;
}
.section-title {
  font-size: clamp(26px, 3.2vw, 44px);
  font-weight: 400;
  letter-spacing: 0.18em;
  line-height: 1.8;
}
.section-body {
  font-family: 'Noto Serif JP', serif;
  font-size: 15px;
  font-weight: 400;
  line-height: 2.7;
  color: var(--gray);
  margin-top: 2rem;
  letter-spacing: 0.06em;
}

/* ── READ MORE LINK ── */
.read-more {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  margin-top: 2.5rem;
  font-family: 'EB Garamond', serif;
  font-size: 11px;
  letter-spacing: 0.5em;
  color: var(--black);
  text-decoration: none;
  text-transform: uppercase;
  transition: opacity 0.25s;
}
.read-more::after {
  content: '';
  display: block;
  width: 36px;
  height: 1px;
  background: var(--black);
  transition: width 0.3s;
}
.read-more:hover { opacity: 0.55; }
.read-more:hover::after { width: 64px; }

/* ── FOOTER ── */
.site-footer {
  background: var(--black);
  color: var(--white);
  padding: 90px 3rem 48px;
}
.footer-inner { max-width: 1080px; margin: 0 auto; }
.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 60px;
  padding-bottom: 60px;
  border-bottom: 1px solid rgba(255,255,255,0.07);
}
.footer-logo img {
  height: 42px;
  width: 42px;
  object-fit: contain;
  filter: invert(1);
  opacity: 0.45;
  flex-shrink: 0;
}
.footer-logo-text { display: flex; flex-direction: column; gap: 5px; }
.footer-logo-jp {
  font-size: 15px;
  font-weight: 400;
  letter-spacing: 0.3em;
  color: rgba(255,255,255,0.7);
  line-height: 1;
}
.footer-logo-en {
  font-family: 'EB Garamond', serif;
  font-size: 9px;
  letter-spacing: 0.5em;
  color: var(--gold);
  line-height: 1;
  text-transform: uppercase;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 60px;
  align-items: start;
}
.footer-addr {
  font-style: normal;
  font-size: 12px;
  line-height: 2.3;
  color: rgba(255,255,255,0.48);
  letter-spacing: 0.06em;
}
.footer-nav-label {
  font-family: 'EB Garamond', serif;
  font-size: 9px;
  letter-spacing: 0.5em;
  color: var(--gold);
  text-transform: uppercase;
  display: block;
  margin-bottom: 1.5rem;
}
.footer-nav-list { list-style: none; display: flex; flex-direction: column; gap: 1rem; }
.footer-nav-list a {
  font-size: 12px;
  letter-spacing: 0.15em;
  color: rgba(255,255,255,0.58);
  text-decoration: none;
  transition: color 0.25s;
}
.footer-nav-list a:hover { color: rgba(255,255,255,0.85); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-copy {
  font-family: 'EB Garamond', serif;
  font-size: 10px;
  letter-spacing: 0.3em;
  color: rgba(255,255,255,0.18);
}

/* ── NEWS ITEMS ── */
.news-list { border-top: 1px solid var(--ash); }
.news-item {
  display: flex;
  align-items: baseline;
  gap: 2.5rem;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--ash);
  text-decoration: none;
  color: var(--black);
  transition: opacity 0.2s;
}
.news-item:hover { opacity: 0.5; }
.news-date {
  font-family: 'EB Garamond', serif;
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--gray);
  white-space: nowrap;
  flex-shrink: 0;
  min-width: 90px;
}
.news-tag {
  font-family: 'EB Garamond', serif;
  font-size: 10px;
  letter-spacing: 0.2em;
  padding: 2px 10px;
  border: 1px solid var(--ash);
  color: var(--gray);
  white-space: nowrap;
  flex-shrink: 0;
}
.news-title {
  font-size: 14px;
  line-height: 1.9;
  letter-spacing: 0.06em;
}
.news-more {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  margin-top: 2.5rem;
  font-family: 'EB Garamond', serif;
  font-size: 11px;
  letter-spacing: 0.5em;
  color: var(--black);
  text-decoration: none;
  text-transform: uppercase;
}
.news-more::after {
  content: '';
  display: block;
  width: 36px;
  height: 1px;
  background: var(--black);
  transition: width 0.3s;
}
.news-more:hover::after { width: 64px; }

/* ── RESPONSIVE ── */
@media (max-width: 1240px) {
  .nav-inner { padding: 0 2rem; }
  .nav-logo { gap: 0.5rem; }
  .nav-menu { gap: 1.8rem; }
  .nav-menu a { letter-spacing: 0.16em; }
}
@media (max-width: 1024px) {
  .nav-menu { display: none; }
  .nav-hamburger { display: flex; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .section { padding: 80px 1.5rem; }
  .nav-inner { padding: 0 1.5rem; }
  .site-footer { padding: 70px 1.5rem 40px; }
  .footer-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-logo { flex-direction: column; gap: 0.75rem; }
  .page-hero { padding: 4rem 1.5rem 3.5rem; padding-top: calc(72px + 2rem); }
  .news-item { flex-direction: column; gap: 0.5rem; }
  .news-date { min-width: auto; }
  .section-title { letter-spacing: 0.1em; }
}