/* ============================================================
   真心農園 — Mobile-First CSS
   テーマ: 深緑・和モダン・洗練・フワッとした動き
   ============================================================ */

/* ---------- Google Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+JP:wght@300;400;600&family=Shippori+Mincho:wght@400;600&family=Cormorant+Garamond:ital,wght@0,300;0,400;1,300&display=swap');

/* ---------- CSS Variables ---------- */
:root {
  --green-deep:    #1a3328;
  --green-mid:     #2a5240;
  --green-rich:    #3a7a5a;
  --green-light:   #74c69d;
  --green-pale:    #d4ede0;
  --green-mist:    #f0f7f2;

  --ink:           #0e1f18;
  --ink-light:     #3a4a40;
  --cream:         #faf8f3;
  --cream-warm:    #f2ede3;
  --gold:          #c8a96e;
  --gold-light:    #e8d5a8;

  --font-serif:    'Shippori Mincho', 'Noto Serif JP', serif;
  --font-display:  'Cormorant Garamond', serif;
  --font-body:     'Noto Serif JP', serif;

  --ease-out:      cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out:   cubic-bezier(0.45, 0, 0.55, 1);

  --radius-sm:     4px;
  --radius-md:     8px;
  --radius-lg:     20px;

  --shadow-soft:   0 4px 32px rgba(26, 51, 40, 0.12);
  --shadow-card:   0 2px 16px rgba(26, 51, 40, 0.08);
  --shadow-hover:  0 12px 48px rgba(26, 51, 40, 0.2);
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-body);
  background-color: var(--cream);
  color: var(--ink);
  line-height: 1.8;
  overflow-x: hidden;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

/* ---------- Animations ---------- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-8px); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.96); }
  to   { opacity: 1; transform: scale(1); }
}

@keyframes scrollLine {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  51%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* fade-in class（ScrollでJS追加想定 or CSS animation-fill-mode使用） */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Header / Nav ---------- */
header,
#site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 1.25rem;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(26, 51, 40, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(116, 198, 157, 0.15);
  transition: background 0.4s var(--ease-out);
}

.site-logo,
#site-header .logo {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 300;
  color: var(--green-pale);
  letter-spacing: 0.15em;
  font-style: italic;
}

/* ハンバーガー */
.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--green-light);
  transition: transform 0.35s var(--ease-out), opacity 0.35s;
}

.nav-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* モバイルメニュー */
nav,
#site-nav {
  position: fixed;
  top: 60px;
  left: 0;
  right: 0;
  background: var(--green-deep);
  padding: 2rem 1.5rem;
  transform: translateY(-110%);
  opacity: 0;
  transition: transform 0.5s var(--ease-out), opacity 0.5s var(--ease-out);
  z-index: 99;
  border-bottom: 1px solid rgba(116, 198, 157, 0.2);
}

nav.open,
#site-nav.open {
  transform: translateY(0);
  opacity: 1;
}

nav ul,
#site-nav ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

nav a,
#site-nav a {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  letter-spacing: 0.25em;
  color: var(--green-pale);
  opacity: 0.85;
  transition: opacity 0.3s, color 0.3s;
  display: block;
  padding: 0.25rem 0;
  border-bottom: 1px solid rgba(116, 198, 157, 0.12);
}

nav a:hover,
#site-nav a:hover {
  opacity: 1;
  color: var(--green-light);
}

/* ---------- Section共通 ---------- */
section {
  padding: 5rem 1.25rem;
}

.section-title-vert {
  writing-mode: vertical-rl;
  font-family: var(--font-serif);
  font-size: 0.65rem;
  letter-spacing: 0.4em;
  color: var(--green-rich);
  margin-bottom: 2rem;
  opacity: 0.7;
}

.section-header {
  margin-bottom: 2.5rem;
}

.section-header-en {
  display: block;
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 300;
  font-style: italic;
  color: var(--green-deep);
  letter-spacing: 0.05em;
  line-height: 1.1;
}

.section-header-ja {
  display: block;
  font-family: var(--font-serif);
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  color: var(--ink-light);
  margin-top: 0.5rem;
  opacity: 0.7;
}

/* ---------- HERO ---------- */
#hero {
  position: relative;
  height: 100svh;
  min-height: 560px;
  overflow: hidden;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-video-wrap {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-video-wrap video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-bg-fallback {
  width: 100%;
  height: 100%;
  background:
    linear-gradient(160deg, var(--green-deep) 0%, #0d2218 60%, #1a3328 100%);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(to bottom,
      rgba(10, 25, 18, 0.55) 0%,
      rgba(10, 25, 18, 0.3) 50%,
      rgba(10, 25, 18, 0.75) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 1.5rem;
  animation: fadeUp 1.2s var(--ease-out) 0.3s both;
}

.hero-en {
  display: block;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-style: italic;
  letter-spacing: 0.5em;
  color: var(--green-light);
  margin-bottom: 1.25rem;
  opacity: 0.9;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 12vw, 7rem);
  font-weight: 300;
  color: var(--cream);
  line-height: 1.1;
  letter-spacing: 0.15em;
}

.hero-title em {
  font-style: normal;
  color: var(--green-light);
  font-weight: 400;
}

.hero-sub {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-style: italic;
  letter-spacing: 0.2em;
  color: var(--green-pale);
  opacity: 0.65;
  margin-top: 1.5rem;
}

.hero-scroll {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  animation: fadeIn 1.5s var(--ease-out) 1.2s both;
}

.hero-scroll span {
  font-family: var(--font-display);
  font-size: 0.6rem;
  font-style: italic;
  letter-spacing: 0.35em;
  color: var(--green-light);
  opacity: 0.6;
}

.hero-scroll-line {
  width: 1px;
  height: 48px;
  background: var(--green-light);
  opacity: 0.4;
  animation: scrollLine 2s ease-in-out infinite;
}

/* ---------- ABOUT ---------- */
#about {
  background: var(--cream);
}

.about-inner {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.about-text h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 8vw, 3.5rem);
  font-weight: 300;
  font-style: italic;
  color: var(--green-deep);
  line-height: 1.15;
  margin-bottom: 0.75rem;
}

.about-text h3 {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  letter-spacing: 0.35em;
  color: var(--green-rich);
  font-weight: 400;
  margin-bottom: 1.75rem;
}

.about-text p {
  font-size: 0.88rem;
  line-height: 2.1;
  color: var(--ink-light);
  margin-bottom: 1.25rem;
}

.about-text strong {
  color: var(--green-mid);
  font-weight: 600;
}

.tagline {
  font-family: var(--font-serif);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  color: var(--green-rich);
  opacity: 0.8;
  border-left: 2px solid var(--green-light);
  padding-left: 1rem;
  line-height: 2;
}

.about-photos {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* paper-frame共通 */
.paper-frame {
  background: var(--cream-warm);
  padding: 8px 8px 28px;
  box-shadow: var(--shadow-card);
  transition: transform 0.5s var(--ease-out), box-shadow 0.5s var(--ease-out);
}

.paper-frame:hover {
  transform: rotate(0deg) scale(1.02) !important;
  box-shadow: var(--shadow-hover);
}

.paper-frame img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.about-photo img {
  height: 220px;
}

/* ---------- SHOP ---------- */
#shop {
  background: var(--green-deep);
  color: var(--cream);
}

#shop .section-header-en {
  color: var(--green-light);
}

#shop .section-header-ja {
  color: var(--green-pale);
}

.shop-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.shop-item {
  position: relative;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(116, 198, 157, 0.15);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out), border-color 0.4s;
}

.shop-item:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.35);
  border-color: rgba(116, 198, 157, 0.4);
}

.shop-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out);
}

.shop-item:hover img {
  transform: scale(1.04);
}

.shop-item a {
  display: block;
}

.shop-item h4 {
  font-family: var(--font-serif);
  font-size: 0.9rem;
  letter-spacing: 0.15em;
  color: var(--green-pale);
  padding: 1rem 1rem 0.25rem;
  font-weight: 400;
}

.shop-item .price {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-style: italic;
  color: var(--gold);
  padding: 0 1rem 1rem;
  letter-spacing: 0.05em;
}

.badge {
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 2;
  background: var(--green-rich);
  color: var(--cream);
  font-family: var(--font-serif);
  font-size: 0.6rem;
  letter-spacing: 0.25em;
  padding: 0.3rem 0.6rem;
  border-radius: 2px;
}

/* ---------- GALLERY ---------- */
#gallery {
  background: var(--cream-warm);
}

.gallery-label {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.75rem;
  letter-spacing: 0.4em;
  color: var(--green-mid);
  opacity: 0.6;
  text-align: center;
  margin-bottom: 1.75rem;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.gallery-grid .paper-frame img {
  width: 100%;
  height: 150px;
  object-fit: cover;
}

/* アート展示 */
.gallery-art {
  position: relative;
  height: 560px;
  margin: 0 -1.25rem;
  overflow: hidden;
}

.art-piece {
  position: absolute;
  cursor: pointer;
  transition: transform 0.6s var(--ease-out), box-shadow 0.6s var(--ease-out), z-index 0s;
}

.art-piece:hover {
  z-index: 10;
  box-shadow: var(--shadow-hover);
}

.art-piece img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- YOUTUBE ---------- */
#youtube {
  background: var(--green-deep);
}

#youtube .section-header-en {
  color: var(--green-light);
}

#youtube .section-header-ja {
  color: var(--green-pale);
}

.youtube-wrap {
  max-width: 700px;
  margin: 0 auto;
}

.yt-embed {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-hover);
  border: 1px solid rgba(116, 198, 157, 0.2);
}

.yt-embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
}

/* ---------- BLOG ---------- */
#blog {
  background: var(--cream);
}

.blog-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

.blog-card {
  background: var(--cream-warm);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform 0.45s var(--ease-out), box-shadow 0.45s var(--ease-out);
}

.blog-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.blog-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out);
}

.blog-card:hover img {
  transform: scale(1.04);
}

.blog-card .date {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.72rem;
  color: var(--green-rich);
  letter-spacing: 0.2em;
  padding: 1rem 1rem 0.25rem;
  opacity: 0.75;
}

.blog-card h4 {
  font-family: var(--font-serif);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--green-deep);
  letter-spacing: 0.1em;
  padding: 0 1rem 0.5rem;
  line-height: 1.6;
}

.blog-card p {
  font-size: 0.8rem;
  color: var(--ink-light);
  padding: 0 1rem 1.25rem;
  line-height: 1.9;
  opacity: 0.8;
}

/* ---------- CONTACT ---------- */
#contact {
  background: var(--green-deep);
  color: var(--green-pale);
}

#contact .section-header-en {
  color: var(--green-light);
}

#contact .section-header-ja {
  color: var(--green-pale);
}

.contact-inner {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-block {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(116, 198, 157, 0.15);
  border-radius: var(--radius-md);
  padding: 2rem 1.5rem;
  transition: border-color 0.4s, background 0.4s;
}

.contact-block:hover {
  border-color: rgba(116, 198, 157, 0.35);
  background: rgba(255,255,255,0.07);
}

.contact-block h3 {
  font-family: var(--font-serif);
  font-size: 0.75rem;
  letter-spacing: 0.35em;
  color: var(--green-light);
  margin-bottom: 1.25rem;
  font-weight: 400;
}

.phone-number {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  font-style: italic;
  color: var(--cream);
  letter-spacing: 0.08em;
  transition: color 0.3s;
}

.phone-number:hover {
  color: var(--green-light);
}

.phone-note {
  font-size: 0.72rem;
  color: var(--green-pale);
  opacity: 0.55;
  letter-spacing: 0.15em;
  margin-top: 0.5rem;
}

.btn-booking {
  display: inline-block;
  padding: 0.75rem 2rem;
  border: 1px solid var(--green-light);
  color: var(--green-light);
  font-family: var(--font-serif);
  font-size: 0.8rem;
  letter-spacing: 0.25em;
  border-radius: 2px;
  transition: background 0.4s var(--ease-out), color 0.4s;
}

.btn-booking:hover {
  background: var(--green-light);
  color: var(--green-deep);
}

/* ---------- LEGAL ---------- */
#legal {
  background: var(--green-mid);
  color: var(--green-pale);
}

#legal .section-header-en {
  color: var(--cream);
}

.legal-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.legal-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-md);
  padding: 1.75rem 1.5rem;
}

.legal-card h3 {
  font-family: var(--font-serif);
  font-size: 0.78rem;
  letter-spacing: 0.25em;
  color: var(--green-light);
  margin-bottom: 1rem;
  font-weight: 400;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid rgba(116, 198, 157, 0.2);
}

.legal-card p {
  font-size: 0.78rem;
  line-height: 2;
  color: var(--green-pale);
  opacity: 0.8;
}

/* ---------- Footer ---------- */
footer,
#site-footer {
  background: var(--ink);
  color: var(--green-pale);
  text-align: center;
  padding: 2.5rem 1.25rem;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.72rem;
  letter-spacing: 0.25em;
  opacity: 0.7;
}

/* ---------- Scroll Animation Helper ---------- */
.stagger-1 { transition-delay: 0.05s; }
.stagger-2 { transition-delay: 0.12s; }
.stagger-3 { transition-delay: 0.19s; }

/* ---------- Tablet (640px+) ---------- */
@media (min-width: 640px) {
  section {
    padding: 6rem 2rem;
  }

  .shop-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .gallery-grid .paper-frame img {
    height: 180px;
  }

  .about-inner {
    flex-direction: row;
    align-items: flex-start;
    gap: 3.5rem;
  }

  .about-text {
    flex: 1.2;
  }

  .about-photos {
    flex: 1;
    flex-direction: row;
    flex-wrap: wrap;
  }

  .about-photo {
    flex: 1 1 calc(50% - 0.75rem);
  }

  .contact-inner {
    flex-direction: row;
  }

  .contact-block {
    flex: 1;
  }
}

/* ---------- Desktop (1024px+) ---------- */
@media (min-width: 1024px) {
  header,
  #site-header {
    padding: 0 4rem;
    height: 68px;
  }

  /* デスクトップではナビを横並び */
  .nav-toggle {
    display: none;
  }

  nav,
  #site-nav {
    position: static;
    transform: none;
    opacity: 1;
    background: transparent;
    padding: 0;
    border: none;
  }

  nav ul,
  #site-nav ul {
    flex-direction: row;
    gap: 2.5rem;
  }

  nav a,
  #site-nav a {
    font-size: 0.72rem;
    border-bottom: none;
    padding: 0;
  }

  section {
    padding: 7rem 4rem;
  }

  .shop-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .blog-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .legal-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .gallery-art {
    height: 520px;
    margin: 0;
    border-radius: var(--radius-lg);
    overflow: hidden;
  }

  .section-header-en {
    font-size: 3.2rem;
  }

  .about-text h2 {
    font-size: 3.5rem;
  }
}

/* ---------- Wide (1280px+) ---------- */
@media (min-width: 1280px) {
  section {
    padding: 8rem 8rem;
  }

  .hero-title {
    font-size: 7rem;
  }
}

/* ---------- Utility ---------- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border-width: 0;
}

/* ---------- Scroll-driven fade (JS補完) ---------- */
/*
  使い方:
  document.querySelectorAll('.fade-in').forEach(el => {
    new IntersectionObserver(([e]) => {
      if (e.isIntersecting) { el.classList.add('visible'); }
    }, { threshold: 0.12 }).observe(el);
  });
*/
/* ===== Instagram 追従ボタン ===== */
.ig-float-btn {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 9999;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 107%, #fdf497 0%, #fdf497 5%, #fd5949 45%, #d6249f 60%, #285AEB 90%);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px rgba(0,0,0,0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  text-decoration: none;
}
.ig-float-btn:hover {
  transform: scale(1.12);
  box-shadow: 0 6px 20px rgba(0,0,0,0.4);
}
.ig-float-btn svg {
  width: 28px;
  height: 28px;
  fill: #fff;
}