/*
Theme Name: PILINA
Theme URI:
Author: PILINA
Author URI:
Description: PILINA permanent jewelry 公式
*/

:root {
  --color-bg: #ffffff;
  --color-bg-off: #f9f8f7;
  --color-text: #2a2a2a;
  --color-text-light: #5e5a57;
  --color-text-muted: #9a9493;
  --color-accent: #b8a89a;
  --color-border: #e5e1dd;
  --color-white: #ffffff;
  --color-dark: #1a1817;
  --font-display: 'Cormorant Garamond', serif;
  --font-body: 'Noto Sans JP', sans-serif;
  --font-accent: 'EB Garamond', serif;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  --max-width: 1200px;
  --nav-height: 70px;
  --concrete: url("images/concrete.png");
}
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body); font-weight: 300;
  color: var(--color-text); line-height: 1.8;
  letter-spacing: 0.03em; overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  background: var(--color-bg);
}


/* ============ Utility ============ */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 var(--spacing-md); }
.section-padding { padding: var(--spacing-xl) 0; }
.text-center { text-align: center; }

/* ============ Typography ============ */
h1, h2, h3 { font-family: var(--font-display); font-weight: 400; letter-spacing: 0.12em; }
h1 { font-size: clamp(2rem, 5vw, 3.5rem); line-height: 1.2; }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); line-height: 1.4; margin-bottom: var(--spacing-md); }
p { font-size: 0.875rem; line-height: 2; color: var(--color-text-light); }

.section-label {
  font-family: var(--font-accent); font-size: 0.7rem;
  letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--color-text-muted); display: block; margin-bottom: var(--spacing-xs);
}
.section-heading {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.5vw, 2.2rem);
  letter-spacing: 0.15em; font-weight: 300;
  margin-bottom: var(--spacing-lg);
}

/* ============ Concrete Accent ============ */

/* 細いコンクリ帯（セクション仕切り） */
.concrete-divider {
  height: 6px;
  background-image: var(--concrete);
  background-size: 500px auto;
  background-position: center;
  opacity: 0.5;
}

/* コンクリ背景のCTAセクション */
.concrete-accent-section {
  position: relative;
  background-image: var(--concrete);
  background-size: 500px auto;
  background-repeat: repeat;
  background-position: center;
}
.concrete-accent-section::before {
  content: ''; position: absolute; inset: 0;
  background: rgba(26, 24, 23, 0.78);
  pointer-events: none;
}
.concrete-accent-section > * { position: relative; z-index: 1; }
.concrete-accent-section,
.concrete-accent-section h2,
.concrete-accent-section .section-heading { color: var(--color-white); }
.concrete-accent-section .section-label { color: var(--color-accent); }
.concrete-accent-section p { color: rgba(255,255,255,0.65); }

/* ============ Navigation ============ */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--nav-height); z-index: 1000;
  transition: background-color 0.4s, box-shadow 0.4s, backdrop-filter 0.4s;
}
.nav.scrolled {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
}
.nav.scrolled::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0;
  height: 3px;
  background-image: var(--concrete);
  background-size: 500px auto;
  background-position: center;
  opacity: 0.4;
}
.nav-inner {
  max-width: var(--max-width); margin: 0 auto; padding: 0 var(--spacing-md);
  height: 100%; display: flex; align-items: center; justify-content: space-between;
}
.nav-logo { height: 36px; opacity: 0.9; transition: opacity 0.3s; }
.nav-logo:hover { opacity: 1; }
.nav-links { display: flex; gap: var(--spacing-md); list-style: none; }
.nav-links a {
  font-family: var(--font-accent); font-size: 0.75rem;
  letter-spacing: 0.2em; text-transform: uppercase;
  text-decoration: none; color: var(--color-text-light);
  transition: color 0.3s; position: relative;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -4px; left: 0;
  width: 0; height: 1px; background: var(--color-text); transition: width 0.3s;
}
.nav-links a:hover { color: var(--color-text); }
.nav-links a:hover::after { width: 100%; }

.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; z-index: 1001; }
.hamburger span { display: block; width: 22px; height: 1px; background: var(--color-text); transition: transform 0.3s, opacity 0.3s; }
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(4px, 4px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(4px, -4px); }

.nav-mobile {
  display: none; position: fixed; top: 0; right: -100%; width: 280px; height: 100vh;
  background: rgba(255,255,255,0.97); backdrop-filter: blur(20px);
  padding: calc(var(--nav-height) + var(--spacing-lg)) var(--spacing-md) var(--spacing-md);
  transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: -4px 0 20px rgba(0,0,0,0.06); z-index: 999;
}
.nav-mobile.open { right: 0; }
.nav-mobile a {
  display: block; font-family: var(--font-accent); font-size: 0.8rem;
  letter-spacing: 0.2em; text-transform: uppercase; text-decoration: none;
  color: var(--color-text-light); padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--color-border); transition: color 0.3s, padding-left 0.3s;
}
.nav-mobile a:hover { color: var(--color-text); padding-left: var(--spacing-xs); }
.nav-overlay {
  display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0,0,0,0.12); z-index: 998; opacity: 0; transition: opacity 0.4s;
}
.nav-overlay.active { opacity: 1; }

/* ============ Hero ============ */
.hero {
  min-height: 100vh; display: grid; grid-template-columns: 4fr 6fr;
  position: relative; overflow: hidden;
}
.hero-content {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  padding: var(--spacing-xl) clamp(1.5rem, 3vw, 3rem);
  text-align: center;
}
.hero-logo {
  width: clamp(150px, 20vw, 150px);
  margin-bottom: var(--spacing-md);
}
.hero-tagline {
  font-family: var(--font-display); font-size: clamp(0.8rem, 1.3vw, 0.95rem);
  letter-spacing: 0.2em; color: var(--color-text-muted); font-weight: 300;
  font-style: italic;
}
.hero-image-wrap {
  display: flex; align-items: center; justify-content: left;
  padding: var(--spacing-lg) var(--spacing-md);
}
.hero-image-inner {
  position: relative;
  width: min(45vw, 980px);
  height: min(50vh, 500px);
}
.hero-image-inner::before {
  content: ''; position: absolute;
  top: 10px; left: 10px;
  width: 100%; height: 100%;
  background-image: var(--concrete);
  background-size: 400px auto;
  background-position: center;
  opacity: 0.5;
}
.hero-image-inner img {
  position: relative; z-index: 1;
  width: 100%; height: 100%;
  object-fit: cover; display: block;
}
.hero-scroll {
  position: absolute; bottom: var(--spacing-md); left: 50%;
  transform: translateX(-50%); z-index: 1;
}
.hero-scroll span {
  font-family: var(--font-accent); font-size: 0.65rem;
  letter-spacing: 0.2em; color: var(--color-text-muted);
  writing-mode: vertical-rl; display: block; position: relative; padding-bottom: 40px;
}
.hero-scroll span::after {
  content: ''; position: absolute; bottom: 0; left: 50%;
  width: 1px; height: 30px; background: var(--color-text-muted);
  animation: scrollLine 2s ease-in-out infinite;
}

/* ============ About ============ */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--spacing-lg); align-items: center; }

/* コンクリートずらし重ね効果 */
.about-image-wrap {
  position: relative;
  aspect-ratio: 3/4;
  max-width: 340px;
  margin-left: auto;
  margin-right: 20px;
  margin-bottom: 20px;
}
.about-image-wrap .concrete-shadow {
  position: absolute;
  top: 20px; left: 20px;
  width: 100%; height: 100%;
  background-image: var(--concrete);
  background-size: cover;
  background-position: center;
  z-index: 0;
}
.about-image-wrap .main-image {
  position: relative;
  width: 100%; height: 100%;
  overflow: hidden;
  z-index: 1;
  background: var(--color-bg-off);
}
.about-image-wrap .main-image img {
  width: 100%; height: 100%;
  object-fit: cover; display: block;
}
.about-text p { margin-bottom: var(--spacing-sm); }
.about-text .concept-word {
  font-family: var(--font-display); font-size: 1.5rem;
  letter-spacing: 0.15em; color: var(--color-text);
  display: block; margin: var(--spacing-md) 0 var(--spacing-xs);
}
.about-text .concept-meaning {
  font-size: 0.75rem; color: var(--color-text-muted);
  margin-bottom: var(--spacing-md); letter-spacing: 0.05em; display: block;
}
.link-arrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-accent); font-size: 0.75rem;
  letter-spacing: 0.15em; text-transform: uppercase;
  text-decoration: none; color: var(--color-text);
  margin-top: var(--spacing-md); transition: gap 0.3s;
}
.link-arrow:hover { gap: 14px; }
.link-arrow::after { content: '\2192'; font-size: 1rem; }

/* ============ Products ============ */
.products-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--spacing-sm); max-width: 900px; margin: 0 auto; }
.product-card { overflow: hidden; text-decoration: none; color: inherit; display: block; }
.product-card-image { aspect-ratio: 1; background: var(--color-bg-off); overflow: hidden; position: relative; transition: transform 0.5s; }
.product-card-image img { width: 100%; height: 100%; object-fit: cover; display: block; }
.product-card:hover .product-card-image { transform: scale(0.98); }
.product-card-info { padding: var(--spacing-sm) 0; }
.product-card-info h3 { font-family: var(--font-display); font-size: 0.95rem; font-weight: 400; letter-spacing: 0.1em; margin-bottom: 4px; }
.product-card-info .price { font-family: var(--font-accent); font-size: 0.8rem; color: var(--color-text-muted); }
.product-card-info .material { font-size: 0.7rem; color: var(--color-text-muted); }

/* ============ Instagram ============ */
.instagram-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 4px; }
.insta-item { aspect-ratio: 1; background: var(--color-bg-off); overflow: hidden; position: relative; cursor: pointer; }
.insta-handle { text-align: center; margin-top: var(--spacing-md); }
.insta-handle a { font-family: var(--font-accent); font-size: 0.75rem; letter-spacing: 0.15em; color: var(--color-text-muted); text-decoration: none; transition: color 0.3s; }
.insta-handle a:hover { color: var(--color-text); }

/* ============ Shop Info ============ */
.info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--spacing-lg); align-items: start; max-width: 900px; margin: 0 auto; }
.info-map { aspect-ratio: 4/3; max-height: 320px; background: var(--color-bg-off); position: relative; overflow: hidden; }
.info-details dl { display: grid; grid-template-columns: 80px 1fr; gap: var(--spacing-sm) var(--spacing-md); }
.info-details dt { font-family: var(--font-accent); font-size: 0.7rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--color-text-muted); padding-top: 2px; }
.info-details dd { font-size: 0.85rem; color: var(--color-text-light); line-height: 1.8; }
.contact-links { display: flex; gap: var(--spacing-sm); margin-top: var(--spacing-lg); }
.contact-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 24px; border: 1px solid var(--color-border);
  text-decoration: none; font-family: var(--font-accent);
  font-size: 0.7rem; letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--color-text); transition: all 0.3s; background: transparent;
}
.contact-btn:hover { background: var(--color-text); color: var(--color-white); border-color: var(--color-text); }
.contact-btn svg { width: 16px; height: 16px; }

/* CTA内のボタン */
.concrete-accent-section .contact-btn { color: var(--color-white); border-color: rgba(255,255,255,0.25); }
.concrete-accent-section .contact-btn:hover { background: rgba(255,255,255,0.15); border-color: rgba(255,255,255,0.5); }

/* ============ Footer ============ */
.footer { padding: var(--spacing-lg) 0 var(--spacing-md); text-align: center; border-top: 1px solid var(--color-border); }
.footer-links { display: flex; justify-content: center; gap: var(--spacing-md); list-style: none; margin-bottom: var(--spacing-md); }
.footer-links a { font-family: var(--font-accent); font-size: 0.65rem; letter-spacing: 0.2em; text-transform: uppercase; text-decoration: none; color: var(--color-text-muted); transition: color 0.3s; }
.footer-links a:hover { color: var(--color-text); }
.footer-copy { font-size: 0.65rem; color: var(--color-text-muted); letter-spacing: 0.1em; }

/* ============ Animations ============ */
.site-content {
  opacity: 0; transform: translateY(40px);
  animation: pageEntrance 1s ease 0.2s forwards;
}
@keyframes pageEntrance {
  to { opacity: 1; transform: translateY(0); }
}
@keyframes scrollLine {
  0%,100% { transform:scaleY(0); transform-origin:top; }
  50% { transform:scaleY(1); transform-origin:top; }
  51% { transform-origin:bottom; }
  100% { transform:scaleY(0); transform-origin:bottom; }
}
.reveal { opacity:0; transform:translateY(30px); transition: opacity 0.8s, transform 0.8s; }
.reveal.visible { opacity:1; transform:translateY(0); }
.reveal-delay-1 { transition-delay:0.1s; }
.reveal-delay-2 { transition-delay:0.2s; }
.reveal-delay-3 { transition-delay:0.3s; }

/* ============ Responsive ============ */
@media (max-width:900px) {
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .hero-image-wrap { order: -1; padding: var(--nav-height) var(--spacing-md) 0; justify-content: center; height: 100svh; }
  .hero-image-inner { width: 80vw; height: calc(100svh - var(--nav-height) - var(--spacing-lg)); margin: 0 auto; }
  .hero-content { padding: var(--spacing-md); }
  .hero-logo { width: clamp(100px, 25vw, 130px); }
  .hero-scroll { display: none; }
  .nav-links { display:none; }
  .hamburger { display:flex; }
  .nav-mobile { display:block; }
  .about-grid { grid-template-columns:1fr; gap:var(--spacing-md); }
  .about-image-wrap { aspect-ratio:16/9; max-width:100%; margin: 0 16px 16px 0; }
  .about-image-wrap .concrete-shadow { top:16px; left:16px; }
  .products-grid { grid-template-columns:repeat(2,1fr); max-width:100%; }
  .instagram-grid { grid-template-columns:repeat(2,1fr); }
  .info-grid { grid-template-columns:1fr; max-width:100%; }
  .info-map { max-height:none; width:100%; }
  .section-padding { padding:var(--spacing-lg) 0; }
  .contact-links { flex-direction:column; align-items:center; }
  .contact-btn { width:80%; justify-content:center; }
  .about-text { text-align:center; }
  .info-details { text-align:center; }
  .info-details dl { grid-template-columns:1fr; gap:0; justify-items:center; }
  .info-details dt { margin-top:var(--spacing-sm); }
  .info-details dd { margin-bottom:var(--spacing-xs); }
  .container { padding: 0 var(--spacing-sm); }
}
@media (max-width:600px) {
  :root { --spacing-md:1.5rem; --spacing-lg:3rem; --spacing-xl:4rem; }
  .about-text { text-align:left; }
  .info-details { text-align:left; }
  .info-details dl { grid-template-columns:70px 1fr; gap:var(--spacing-xs) var(--spacing-sm); justify-items:start; }
  .info-details dt { margin-top:0; }
  .info-details dd { margin-bottom:0; }
  .products-grid { grid-template-columns:1fr 1fr; gap:var(--spacing-xs); }
  .instagram-grid { grid-template-columns:repeat(2,1fr); gap:2px; }
  .footer-links { flex-direction:column; gap:var(--spacing-sm); }
}