/* =============================================
   090 株式会社サンプル石材工房
   "時を、刻む。" モノクローム × ファインアート
   ============================================= */

:root {
  --stone:      #EEEAE3;
  --stone-d:    #D9D2C5;
  --stone-darker: #B8AE9D;
  --ink:        #1A1A1A;
  --ink-2:      #2E2C28;
  --ink-3:      #4A463F;
  --moss:       #3F5A2E;
  --moss-d:     #2B3D1F;
  --sand:       #B08D5A;
  --sand-d:     #8E6F45;
  --paper:      #FFFFFF;
  --bg:         #F8F4ED;
  --line:       rgba(26,26,26,0.12);
  --line-soft:  rgba(26,26,26,0.06);
  --serif:      'Cormorant Garamond', 'Noto Serif JP', serif;
  --sans:       'Inter', 'Noto Serif JP', sans-serif;
  --serif-jp:   'Noto Serif JP', serif;
  --shadow-md:  0 14px 36px rgba(26,26,26,0.10);
  --shadow-lg:  0 28px 80px rgba(26,26,26,0.18);
}

* { box-sizing: border-box; }
html { overflow-x: hidden; scroll-behavior: smooth; }
body {
  margin: 0; font-family: var(--serif-jp); color: var(--ink-2);
  background: var(--bg); line-height: 1.95;
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: none; }

.container { max-width: 1240px; margin: 0 auto; padding: 0 32px; }
.container-narrow { max-width: 880px; margin: 0 auto; padding: 0 32px; }

/* DEMO BAR */
#demo-bar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(26,26,26,0.96); backdrop-filter: blur(10px);
  padding: 7px 0;
}
.demo-bar-inner {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  font-size: 0.7rem; color: rgba(238,234,227,0.5);
}
.demo-badge {
  font-size: 0.54rem; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase;
  background: rgba(176,141,90,0.20); color: var(--sand);
  padding: 3px 10px;
}
.demo-link { color: var(--sand); font-weight: 700; text-decoration: underline; text-underline-offset: 2px; }
.demo-copy { color: rgba(238,234,227,0.3); font-size: 0.62rem; margin-left: 4px; }
@media(max-width:640px){ .demo-copy { display: none; } }

/* HEADER */
.site-header {
  position: fixed; top: 36px; left: 0; right: 0; z-index: 900;
  background: rgba(248,244,237,0.88); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-soft);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 0;
}
.site-logo { display: inline-flex; flex-direction: column; line-height: 1.1; }
.site-logo .logo-en {
  font-family: var(--serif); font-size: 1.42rem; letter-spacing: 0.04em;
  color: var(--ink); font-weight: 500;
}
.site-logo .logo-en .serif-it { font-style: italic; color: var(--moss); }
.site-logo small {
  font-family: var(--serif-jp); font-size: 0.62rem; letter-spacing: 0.20em;
  color: var(--ink-3); margin-top: 4px;
}
.header-nav { display: flex; align-items: center; gap: 28px; }
.header-nav a {
  font-family: var(--sans); font-size: 0.84rem; font-weight: 500;
  color: var(--ink-2); letter-spacing: 0.06em;
  transition: color .2s;
}
.header-nav a:hover { color: var(--moss); }
.header-cta {
  background: var(--ink); color: var(--stone) !important;
  padding: 10px 22px; font-weight: 600 !important; font-size: 0.78rem !important;
  letter-spacing: 0.12em;
  transition: background .2s, transform .2s;
}
.header-cta:hover { background: var(--moss); transform: translateY(-1px); }

.hamburger { display: none; padding: 8px; position: relative; z-index: 1100; }
.hamburger span,
.hamburger::before,
.hamburger::after {
  content: ""; display: block;
  width: 26px; height: 1.5px; background: var(--ink);
  margin: 6px 0; transition: transform .3s, opacity .3s;
}

.serif-it { font-family: var(--serif); font-style: italic; }

/* HERO */
.hero {
  position: relative; padding: 200px 0 120px;
  min-height: 100vh; display: flex; flex-direction: column; justify-content: center;
  overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; }
.hero-overlay {
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(248,244,237,0.78) 0%, rgba(217,210,197,0.65) 100%);
}
.hero .container { position: relative; z-index: 2; }
.label-en {
  display: inline-block; font-family: var(--serif); font-style: italic;
  font-size: 0.92rem; letter-spacing: 0.18em;
  color: var(--moss); margin-bottom: 28px;
}
.hero h1 {
  font-family: var(--serif-jp); font-weight: 600;
  font-size: clamp(3.6rem, 9vw, 8rem); line-height: 1.05; letter-spacing: -0.01em;
  margin: 0 0 36px; color: var(--ink);
}
.hero h1 .line { display: block; }
.hero h1 .serif-it { color: var(--moss); font-size: 1.1em; }
.hero-lead {
  font-size: 1.04rem; line-height: 2.05;
  color: var(--ink-2); margin: 0 0 40px; max-width: 560px;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; }
.btn-prim, .btn-sec, .btn-large {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 16px 32px; font-family: var(--sans);
  font-size: 0.86rem; font-weight: 600; letter-spacing: 0.10em;
  transition: transform .2s, background .2s, color .2s, box-shadow .2s;
  text-transform: uppercase;
}
.btn-prim { background: var(--ink); color: var(--stone); }
.btn-prim:hover { background: var(--moss); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-sec { background: transparent; color: var(--ink); border: 1px solid var(--ink); }
.btn-sec:hover { background: var(--ink); color: var(--stone); transform: translateY(-2px); }
.btn-large { padding: 20px 44px; font-size: 0.94rem; }

.hero-scroll-hint {
  position: absolute; bottom: 36px; left: 50%; transform: translateX(-50%);
  font-family: var(--serif); font-style: italic; font-size: 0.74rem;
  letter-spacing: 0.4em; color: var(--ink-3);
  writing-mode: vertical-rl;
  animation: scroll-down 2.4s ease-in-out infinite;
}
@keyframes scroll-down {
  0%,100% { transform: translateX(-50%) translateY(0); opacity: .55; }
  50%     { transform: translateX(-50%) translateY(8px); opacity: 1; }
}

/* SECTION */
.section { padding: 140px 0; position: relative; }
.section-header { text-align: center; max-width: 720px; margin: 0 auto 80px; }
.section-header h2 {
  font-family: var(--serif-jp); font-weight: 600;
  font-size: clamp(2rem, 4vw, 3.4rem); line-height: 1.35;
  color: var(--ink); margin: 0 0 20px;
}
.section-header h2 .serif-it { color: var(--moss); }
.section-header p { font-size: 0.96rem; line-height: 2; color: var(--ink-3); margin: 0; }

/* INTRO */
.intro { background: var(--stone); padding: 130px 0; }
.intro .quote {
  font-family: var(--serif-jp); font-weight: 500;
  font-size: clamp(1.5rem, 3vw, 2.4rem); line-height: 1.7;
  color: var(--ink); margin: 16px 0 30px;
  text-align: center;
}
.intro .quote .serif-it { color: var(--moss); font-weight: 500; }
.intro-text { text-align: center; }
.intro-text .label-en { display: block; text-align: center; }
.intro p {
  font-size: 1rem; line-height: 2.1; color: var(--ink-2); margin: 0 0 18px;
  max-width: 680px; margin-left: auto; margin-right: auto;
}

/* WORKS */
.works-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 50px;
}
.work-card {
  background: var(--paper); overflow: hidden;
  border: 1px solid var(--line-soft);
  transition: transform .4s, box-shadow .4s;
}
.work-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.work-img { aspect-ratio: 4/5; overflow: hidden; background: var(--stone); }
.work-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s; filter: grayscale(15%); }
.work-card:hover .work-img img { transform: scale(1.05); filter: grayscale(0%); }
.work-body { padding: 44px 44px 50px; position: relative; }
.work-num {
  position: absolute; top: 44px; right: 44px;
  font-family: var(--serif); font-style: italic; font-size: 1.7rem;
  color: var(--moss); opacity: 0.7;
}
.work-cat {
  display: inline-block; font-family: var(--serif); font-style: italic;
  font-size: 0.86rem; color: var(--sand-d); letter-spacing: 0.14em;
  margin-bottom: 8px;
}
.work-body h3 {
  font-family: var(--serif-jp); font-weight: 600; font-size: 1.6rem;
  color: var(--ink); margin: 0 0 16px;
}
.work-body p { font-size: 0.92rem; line-height: 1.95; color: var(--ink-3); margin: 0; }

/* PROCESS */
.process { background: var(--ink); color: var(--stone); }
.process .label-en { color: var(--sand); }
.process-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 90px; align-items: center;
}
.process-photo {
  aspect-ratio: 3/2; overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.process-photo img { width: 100%; height: 100%; object-fit: cover; }
.process-text h2 {
  font-family: var(--serif-jp); font-weight: 600;
  font-size: clamp(1.8rem, 3.4vw, 2.8rem); line-height: 1.45;
  color: var(--stone); margin: 14px 0 28px;
}
.process-text h2 .serif-it { color: var(--sand); }
.process-text p { font-size: 0.98rem; line-height: 2.1; color: rgba(238,234,227,0.85); margin: 0 0 22px; }

/* DETAIL */
.detail { padding: 120px 0; background: var(--stone-d); }
.detail .section-header h2 .serif-it { color: var(--moss); }
.detail-vis {
  aspect-ratio: 16/9; overflow: hidden;
  box-shadow: var(--shadow-lg); position: relative;
}
.detail-vis img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(20%); }
.detail-caption {
  position: absolute; bottom: 24px; left: 24px;
  background: rgba(26,26,26,0.88); color: var(--stone);
  padding: 10px 18px;
  font-family: var(--serif); font-style: italic; font-size: 0.86rem;
}

/* STORY */
.story-grid {
  display: grid; grid-template-columns: 1fr 1.1fr; gap: 80px; align-items: center;
}
.story-text h2 {
  font-family: var(--serif-jp); font-weight: 600;
  font-size: clamp(1.8rem, 3.4vw, 2.8rem); line-height: 1.4;
  color: var(--ink); margin: 14px 0 26px;
}
.story-text h2 .serif-it { color: var(--moss); }
.story-text p { font-size: 0.98rem; line-height: 2.1; color: var(--ink-2); margin: 0 0 22px; }
.story-sign {
  margin-top: 32px !important; padding-top: 22px;
  border-top: 1px solid var(--line);
  font-family: var(--serif); font-style: italic;
  color: var(--moss); font-size: 1.08rem !important;
}
.story-photo {
  aspect-ratio: 16/10; overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.story-photo img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(25%); }

/* NEWS */
.news-section { background: var(--stone); }
.news-list {
  max-width: 920px; margin: 0 auto;
  border-top: 1px solid var(--line);
}
.news-item {
  display: grid; grid-template-columns: 130px 100px 1fr; gap: 24px;
  align-items: center; padding: 24px 0;
  border-bottom: 1px solid var(--line);
  transition: padding-left .25s;
}
.news-item:hover { padding-left: 12px; }
.news-item:hover .news-ttl { color: var(--moss); }
.news-date {
  font-family: var(--serif); font-style: italic;
  font-size: 0.92rem; color: var(--sand-d);
}
.news-cat {
  font-family: var(--sans); font-size: 0.66rem; font-weight: 600;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--moss); border: 1px solid var(--moss);
  padding: 4px 12px; width: fit-content; justify-self: start;
}
.news-ttl {
  font-family: var(--serif-jp); font-size: 0.96rem;
  color: var(--ink-2); font-weight: 500;
  transition: color .2s;
}

/* CTA */
.cta { background: var(--ink); color: var(--stone); padding: 140px 0; }
.cta-card { text-align: center; }
.cta-card .label-en { color: var(--sand); }
.cta-card h2 {
  font-family: var(--serif-jp); font-weight: 600;
  font-size: clamp(2.2rem, 4.4vw, 3.6rem); line-height: 1.35;
  margin: 14px 0 26px; color: var(--stone);
}
.cta-card h2 .serif-it { color: var(--sand); }
.cta-card p { font-size: 1rem; line-height: 1.95; color: rgba(238,234,227,0.85); margin: 0 0 36px; }
.cta-card .btn-prim { background: var(--sand); color: var(--ink); }
.cta-card .btn-prim:hover { background: var(--stone); }
.cta-note {
  margin-top: 28px !important; font-family: var(--serif); font-style: italic;
  font-size: 0.86rem !important; color: rgba(238,234,227,0.5) !important;
}

/* FOOTER */
.site-footer { background: var(--ink-2); color: rgba(238,234,227,0.6); padding: 90px 0 40px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 60px; margin-bottom: 50px; }
.footer-brand .logo-en {
  font-family: var(--serif); font-size: 1.5rem;
  color: var(--stone); display: block; margin-bottom: 18px;
}
.footer-brand .serif-it { font-style: italic; color: var(--sand); }
.footer-brand p { font-size: 0.84rem; line-height: 1.95; margin: 0; }
.footer-nav strong, .footer-hours strong {
  display: block; font-family: var(--serif); font-style: italic;
  font-size: 1.08rem; color: var(--sand); margin-bottom: 18px;
}
.footer-nav ul { list-style: none; padding: 0; margin: 0; }
.footer-nav li { padding: 5px 0; }
.footer-nav a { font-size: 0.84rem; transition: color .2s; }
.footer-nav a:hover { color: var(--sand); }
.footer-hours dl { margin: 0; }
.footer-hours dt { font-family: var(--serif); font-style: italic; font-size: 0.78rem; color: var(--sand); margin-top: 10px; }
.footer-hours dd { margin: 4px 0 0; font-size: 0.86rem; color: rgba(238,234,227,0.85); }
.footer-copy { padding-top: 30px; border-top: 1px solid rgba(238,234,227,0.10); text-align: center; }
.footer-copy small { font-size: 0.72rem; color: rgba(238,234,227,0.4); letter-spacing: 0.08em; }

/* SUB PAGES */
.page-hero {
  padding: 200px 0 80px;
  background: var(--stone); border-bottom: 1px solid var(--line-soft);
}
.page-hero h1 {
  font-family: var(--serif-jp); font-weight: 600;
  font-size: clamp(2rem, 4.4vw, 3.6rem); line-height: 1.3; color: var(--ink);
  margin: 14px 0;
}
.page-hero p { font-size: 0.96rem; line-height: 2; color: var(--ink-3); margin: 0; max-width: 700px; }

.form-section { padding: 120px 0; }
.contact-form {
  max-width: 720px; margin: 0 auto;
  background: var(--paper); padding: 56px 60px;
  border: 1px solid var(--line);
}
.form-row { margin-bottom: 24px; }
.form-row label { display: block; font-family: var(--sans); font-size: 0.82rem; font-weight: 600; color: var(--ink); margin-bottom: 8px; letter-spacing: 0.06em; }
.form-row label .req { color: var(--moss); margin-left: 4px; }
.form-row input,
.form-row select,
.form-row textarea {
  width: 100%; padding: 14px 16px;
  border: 1px solid var(--line); font: inherit;
  font-size: 0.94rem; color: var(--ink-2);
  background: var(--bg);
  font-family: var(--serif-jp);
}
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus { outline: 2px solid var(--moss); border-color: var(--ink); }
.form-row textarea { resize: vertical; min-height: 140px; }
.form-actions { text-align: center; margin-top: 40px; }
.form-actions button {
  background: var(--ink); color: var(--stone);
  padding: 18px 56px; font-family: var(--sans);
  font-size: 0.86rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase;
  transition: background .2s, transform .2s;
}
.form-actions button:hover { background: var(--moss); transform: translateY(-2px); }
.form-note { font-family: var(--serif); font-style: italic; text-align: center; font-size: 0.78rem; color: var(--ink-3); margin-top: 18px; }

.privacy-section, .news-list-page { padding: 100px 0 120px; }
.privacy-content { max-width: 800px; margin: 0 auto; }
.privacy-content h3 {
  font-family: var(--serif-jp); font-weight: 600;
  font-size: 1.18rem; color: var(--ink); margin: 36px 0 14px;
  padding-bottom: 10px; border-bottom: 1px solid var(--moss);
}
.privacy-content h3:first-child { margin-top: 0; }
.privacy-content p { font-size: 0.94rem; line-height: 2; color: var(--ink-2); margin: 0 0 16px; }
.privacy-content ul { padding-left: 22px; }
.privacy-content li { font-size: 0.9rem; line-height: 1.95; color: var(--ink-2); margin-bottom: 6px; }
.news-articles { max-width: 920px; margin: 0 auto; }
.news-article {
  display: block; padding: 28px 36px; background: var(--paper);
  border: 1px solid var(--line); margin-bottom: 16px;
  transition: transform .25s, border-color .2s;
}
.news-article:hover { transform: translateY(-3px); border-color: var(--moss); }
.news-article-meta { display: flex; gap: 14px; margin-bottom: 8px; align-items: center; }
.news-article h2 {
  font-family: var(--serif-jp); font-weight: 600; font-size: 1.06rem;
  color: var(--ink); margin: 0;
}

.news-detail { padding: 80px 0 120px; }
.news-detail-inner { max-width: 760px; margin: 0 auto; }
.news-detail header.meta { margin-bottom: 32px; padding-bottom: 22px; border-bottom: 1px solid var(--moss); }
.news-detail h1 {
  font-family: var(--serif-jp); font-weight: 600;
  font-size: clamp(1.7rem, 3vw, 2.4rem); line-height: 1.45; color: var(--ink);
  margin: 14px 0 0;
}
.news-detail .body p { font-size: 0.98rem; line-height: 2.1; color: var(--ink-2); margin: 0 0 22px; }
.news-back { margin-top: 50px; text-align: center; }
.news-back a {
  display: inline-block; padding: 14px 32px;
  border: 1px solid var(--ink); color: var(--ink); font-family: var(--sans);
  font-size: 0.84rem; letter-spacing: 0.1em; text-transform: uppercase;
  transition: background .2s, color .2s;
}
.news-back a:hover { background: var(--ink); color: var(--stone); }

/* REVEAL */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 1s ease, transform 1s ease; }
.reveal[style*="--delay"] { transition-delay: var(--delay); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* RESPONSIVE */
@media (max-width: 960px) {
  .works-grid { grid-template-columns: 1fr; gap: 36px; }
  .process-grid, .story-grid { grid-template-columns: 1fr; gap: 50px; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .section { padding: 90px 0; }
  .intro { padding: 90px 0; }
}
@media (max-width: 768px) {
  .header-nav {
    position: fixed; inset: 0;
    background: var(--stone); flex-direction: column;
    align-items: flex-start; justify-content: center;
    padding: 80px 32px; gap: 22px;
    transform: translateX(100%); transition: transform .4s; z-index: 1000;
  }
  .header-nav.is-open { transform: translateX(0); }
  .header-nav a { font-size: 1.1rem; }
  .hamburger { display: block; }
  .site-header.menu-active { background: var(--stone) !important; backdrop-filter: none !important; -webkit-backdrop-filter: none !important; }
  .menu-active .hamburger span { opacity: 0; }
  .menu-active .hamburger::before { transform: translateY(8px) rotate(45deg); }
  .menu-active .hamburger::after { transform: translateY(-7px) rotate(-45deg); }
  .hero { padding: 150px 0 80px; min-height: auto; }
  .hero-scroll-hint { display: none; }
  .work-body { padding: 30px 28px 36px; }
  .work-num { top: 24px; right: 24px; }
  .news-item { grid-template-columns: 1fr; gap: 8px; }
  .contact-form { padding: 36px 28px; }
}