/* ===========================
   CSS Custom Properties
   =========================== */
:root {
  --bg:           #f8f5f0;
  --bg-alt:       #ffffff;
  --bg-card:      #ffffff;
  --bg-section2:  #fdf9f5;

  --sakura:       #c97b84;
  --sakura-light: #e8a8b0;
  --sakura-pale:  rgba(201, 123, 132, 0.08);
  --sakura-border:rgba(201, 123, 132, 0.25);

  --earth:        #8b6b4a;
  --earth-light:  #b89070;

  --text:         #2d2520;
  --text-mid:     #5a4a3a;
  --text-muted:   #8a7a6a;
  --text-pale:    #b8a898;

  --border:       rgba(45, 37, 32, 0.1);
  --border-mid:   rgba(45, 37, 32, 0.15);

  --font-serif:   'Noto Serif JP', 'Times New Roman', serif;
  --font-sans:    'Noto Sans JP', sans-serif;
  --font-en:      'Cormorant Garamond', Georgia, serif;
  --font-display: 'Raleway', 'PingFang TC', sans-serif;

  --nav-h:        72px;
  --section-pad:  120px;
  --container:    1100px;

  --ease-out-expo:cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out:  cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-sm:    0 2px 16px rgba(45,37,32,0.06);
  --shadow-md:    0 8px 40px rgba(45,37,32,0.10);
  --shadow-lg:    0 16px 60px rgba(45,37,32,0.14);
}

/* ===========================
   Reset & Base
   =========================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-weight: 300;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* ===========================
   Utility
   =========================== */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(20px, 5vw, 60px);
}
.hidden { display: none !important; }

/* ===========================
   Animations
   =========================== */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.9s var(--ease-out-expo) forwards;
}
.fade-in.delay-1 { animation-delay: 0.15s; }
.fade-in.delay-2 { animation-delay: 0.3s; }
.fade-in.delay-3 { animation-delay: 0.45s; }
.fade-in.delay-4 { animation-delay: 0.6s; }
@keyframes fadeUp { to { opacity: 1; transform: translateY(0); } }

.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.8s var(--ease-out-expo), transform 0.8s var(--ease-out-expo);
}
.reveal.delay-1 { transition-delay: 0.15s; }
.reveal.delay-2 { transition-delay: 0.3s; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ===========================
   花びらパーティクル
   =========================== */
#petals {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}
.petal {
  position: absolute;
  top: -20px;
  width: 10px; height: 10px;
  background: var(--sakura-light);
  border-radius: 0 60% 60% 60%;
  opacity: 0;
  animation: petalFall linear infinite;
}
@keyframes petalFall {
  0%   { opacity: 0; transform: translateY(0) rotate(0deg); }
  5%   { opacity: 0.6; }
  90%  { opacity: 0.3; }
  100% { opacity: 0; transform: translateY(110vh) rotate(540deg); }
}

/* ===========================
   Navigation
   =========================== */
#nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  transition: background 0.4s var(--ease-in-out), box-shadow 0.4s;
}
#nav.scrolled {
  background: rgba(248, 245, 240, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--border), var(--shadow-sm);
}
.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  height: 100%;
  padding: 0 clamp(20px, 5vw, 60px);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo { display: flex; flex-direction: column; line-height: 1.1; }
.logo-jp {
  font-family: var(--font-serif);
  font-size: 0.65rem;
  letter-spacing: 0.35em;
  color: var(--sakura);
}
.logo-en {
  font-family: var(--font-display);
  font-size: 0.90rem;
  font-weight: 120;
  letter-spacing: 0.03em;
  color: var(--text);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 40px;
  list-style: none;
}
.nav-links a {
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  transition: color 0.3s;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 1px;
  background: var(--sakura);
  transform: scaleX(0);
  transition: transform 0.3s var(--ease-out-expo);
}
.nav-links a:hover { color: var(--sakura); }
.nav-links a:hover::after { transform: scaleX(1); }
.nav-cta {
  color: var(--sakura) !important;
  border: 1px solid var(--sakura-border) !important;
  padding: 8px 20px;
  transition: background 0.3s !important;
}
.nav-cta:hover { background: var(--sakura-pale) !important; }
.nav-cta::after { display: none !important; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 4px; }
.nav-toggle span {
  display: block;
  width: 24px; height: 1.5px;
  background: var(--text);
  transition: transform 0.3s, opacity 0.3s;
}
.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); }

/* ===========================
   Button
   =========================== */
.btn-sakura {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 32px;
  background: var(--sakura);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  transition: background 0.3s, transform 0.3s, box-shadow 0.3s;
  box-shadow: 0 4px 20px rgba(201, 123, 132, 0.25);
}
.btn-sakura:hover {
  background: #b8696f;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(201, 123, 132, 0.35);
}
.btn-sakura svg { flex-shrink: 0; }

/* ===========================
   Section Head
   =========================== */
section { padding: var(--section-pad) 0; position: relative; }
.section-head { text-align: center; margin-bottom: 60px; }
.section-en {
  font-family: var(--font-en);
  font-size: 0.75rem;
  letter-spacing: 0.5em;
  color: var(--sakura);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 400;
  letter-spacing: 0.12em;
  color: var(--text);
  margin-bottom: 16px;
}
.section-deco { display: flex; justify-content: center; }
.deco-sakura { font-size: 1.1rem; color: var(--sakura-light); }
.section-desc {
  text-align: center;
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 2.2;
  margin-bottom: 60px;
}

/* ===========================
   Hero
   =========================== */
#hero {
  min-height: 100svh;
  padding: var(--nav-h) 0 0;
  display: flex;
  align-items: stretch;
  position: relative;
  overflow: hidden;
  background: var(--bg);
}
.hero-deco-circle {
  position: absolute;
  top: -10%; right: -5%;
  width: clamp(300px, 55vw, 700px);
  height: clamp(300px, 55vw, 700px);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(201,123,132,0.08) 0%, rgba(201,123,132,0.03) 60%, transparent 100%);
  border: 1px solid var(--sakura-border);
  pointer-events: none;
}
.circle-inner {
  position: absolute;
  inset: 10%;
  border-radius: 50%;
  border: 1px solid var(--sakura-border);
}
.circle-inner::after {
  content: '';
  position: absolute;
  inset: 20%;
  border-radius: 50%;
  border: 1px solid var(--sakura-border);
}
.hero-body {
  display: grid;
  grid-template-columns: auto 1fr 1fr;
  align-items: center;
  gap: 60px;
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 60px clamp(20px, 5vw, 60px);
  position: relative;
  z-index: 1;
}
.hero-vertical {
  writing-mode: vertical-rl;
  display: flex;
  gap: 4px;
  font-family: var(--font-serif);
  font-size: 0.7rem;
  letter-spacing: 0.5em;
  color: var(--text-pale);
}
.hero-vertical span { display: block; }
.hero-catch {
  font-family: var(--font-serif);
  font-size: clamp(0.75rem, 1.5vw, 0.9rem);
  letter-spacing: 0.4em;
  color: var(--sakura);
  margin-bottom: 20px;
}
.hero-title {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-end;
  line-height: 1;
  margin-bottom: 12px;
}
.title-en {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5.2vw, 4.4rem);
  font-weight: 100;
  letter-spacing: 0.06em;
  color: var(--text);
}
.title-en.italic {
  font-family: var(--font-en);
  font-size: clamp(3.2rem, 7.4vw, 6.2rem);
  font-weight: 300;
  font-style: italic;
  color: var(--sakura);
}
.hero-jp {
  font-family: var(--font-serif);
  font-size: clamp(0.7rem, 1.5vw, 0.8rem);
  letter-spacing: 0.6em;
  color: var(--text-muted);
  margin-bottom: 20px;
}
.hero-sub {
  font-size: clamp(0.78rem, 1.5vw, 0.9rem);
  letter-spacing: 0.25em;
  color: var(--text-muted);
  margin-bottom: 40px;
  line-height: 2;
}
.hero-img-placeholder {
  aspect-ratio: 3/4;
  background: #ede8e0;
  border-radius: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
}
.placeholder-pattern {
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(
      45deg,
      rgba(201,123,132,0.05) 0px, rgba(201,123,132,0.05) 1px,
      transparent 1px, transparent 24px
    ),
    repeating-linear-gradient(
      -45deg,
      rgba(139,107,74,0.05) 0px, rgba(139,107,74,0.05) 1px,
      transparent 1px, transparent 24px
    );
}
.placeholder-label {
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.4em;
  color: var(--text-pale);
  text-transform: uppercase;
  position: relative;
  z-index: 1;
}
.hero-img-tag {
  position: absolute;
  bottom: -16px; left: -16px;
  background: var(--sakura);
  color: #fff;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  padding: 8px 16px;
  box-shadow: var(--shadow-sm);
  z-index: 5;
}
.hero-img-wrap { position: relative; }
.hero-scroll {
  position: absolute;
  bottom: 40px; left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 1;
  animation: fadeUp 0.8s 1s var(--ease-out-expo) both;
}
.scroll-text {
  font-family: var(--font-en);
  font-size: 0.65rem;
  letter-spacing: 0.35em;
  color: var(--text-pale);
}
.scroll-line {
  width: 1px; height: 50px;
  background: linear-gradient(to bottom, var(--sakura-light), transparent);
  animation: scrollBounce 2s 1.5s ease-in-out infinite;
}
@keyframes scrollBounce {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

/* ===========================
   About
   =========================== */
#about { background: var(--bg-alt); }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.about-lead {
  font-family: var(--font-serif);
  font-size: clamp(1.1rem, 2.5vw, 1.35rem);
  line-height: 2.2;
  color: var(--text);
  margin-bottom: 24px;
}
.about-text p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 2.4;
  margin-bottom: 20px;
}
.about-chapter + .about-chapter {
  margin-top: 36px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}
.about-chapter-label {
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--sakura);
  margin-bottom: 6px;
}
.about-chapter-label::before {
  content: '◆\00a0\00a0';
}
.about-chapter-sub {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--text);
  line-height: 1.9;
  margin-bottom: 16px;
}
.about-img-frame { position: relative; }
.about-img-placeholder {
  aspect-ratio: 3/4;
  background: var(--bg);
  border-radius: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 12px 48px rgba(45,37,32,0.30), 0 4px 12px rgba(45,37,32,0.15);
  overflow: hidden;
  position: relative;
}
.img-floral {
  position: relative;
  width: 180px; height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.floral-ring { position: absolute; border-radius: 50%; border: 1px solid var(--sakura-border); }
.r1 { width: 180px; height: 180px; }
.r2 { width: 120px; height: 120px; }
.r3 { width: 60px; height: 60px; background: var(--sakura-pale); }
.floral-center { font-size: 1.6rem; color: var(--sakura-light); position: relative; z-index: 1; }
.about-caption {
  margin-top: 12px;
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  color: var(--text-pale);
  text-align: center;
}

/* ===========================
   Gallery — 均一グリッド
   =========================== */
#gallery { background: var(--bg-section2); }

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: 520px;   /* 全カードの行高さを固定して均一に */
  gap: 24px;
}

.gallery-card {
  background: var(--bg-card);
  border-radius: 2px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 0.4s var(--ease-out-expo), box-shadow 0.4s var(--ease-out-expo);
  cursor: pointer;
  display: flex;            /* 縦方向のflexでcard-imgが残りスペースを埋める */
  flex-direction: column;
}
.gallery-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.card-img {
  background-color: var(--card-bg);
  flex: 1;                  /* 固定行高さから card-body を引いた高さをすべて使う */
  min-height: 0;
  position: relative;
  overflow: hidden;
}

/* カードパターン（写真がない時の布地イメージ） */
.card-pattern { position: absolute; inset: 0; }
.grid-pattern {
  background-image:
    repeating-linear-gradient(0deg, transparent, transparent 15px, rgba(74,106,154,0.15) 15px, rgba(74,106,154,0.15) 16px),
    repeating-linear-gradient(90deg, transparent, transparent 15px, rgba(74,106,154,0.15) 15px, rgba(74,106,154,0.15) 16px);
}
.dot-pattern {
  background-image: radial-gradient(circle 2px at 12px 12px, rgba(201,123,132,0.25) 100%, transparent 100%);
  background-size: 24px 24px;
}
.stripe-pattern {
  background-image: repeating-linear-gradient(
    -30deg, transparent, transparent 10px,
    rgba(176,96,64,0.12) 10px, rgba(176,96,64,0.12) 11px);
}
.cross-pattern {
  background-image:
    repeating-linear-gradient(0deg, transparent, transparent 20px, rgba(74,138,96,0.12) 20px, rgba(74,138,96,0.12) 21px),
    repeating-linear-gradient(90deg, transparent, transparent 20px, rgba(74,138,96,0.12) 20px, rgba(74,138,96,0.12) 21px);
}
.wave-pattern {
  background-image:
    repeating-radial-gradient(circle at 0 0, transparent 0, rgba(122,90,154,0.07) 25px),
    repeating-linear-gradient(rgba(122,90,154,0.05), rgba(122,90,154,0.05));
}
.diamond-pattern {
  background-image:
    repeating-linear-gradient(45deg, rgba(160,136,42,0.15) 0px, rgba(160,136,42,0.15) 1px, transparent 1px, transparent 16px),
    repeating-linear-gradient(-45deg, rgba(160,136,42,0.15) 0px, rgba(160,136,42,0.15) 1px, transparent 1px, transparent 16px);
}
.card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 50%, rgba(0,0,0,0.04) 100%);
  z-index: 2;
}

.card-body {
  padding: 18px 22px 20px;
  border-top: 2px solid var(--card-accent, var(--sakura));
  flex-shrink: 0;           /* card-body は縮まない */
}
.card-tag {
  display: inline-block;
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: #fff;
  background: var(--card-accent, var(--sakura));
  padding: 3px 10px;
  margin-bottom: 8px;
}
.card-body h3 {
  font-family: var(--font-serif);
  font-size: 0.92rem;
  letter-spacing: 0.06em;
  color: var(--text);
  margin-bottom: 4px;
  line-height: 1.6;
}
.card-body p {
  font-size: 0.76rem;
  color: var(--text-muted);
  line-height: 1.8;
}

.gallery-cta {
  text-align: center;
  margin-top: 60px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}
.gallery-cta p {
  font-family: var(--font-serif);
  font-size: 0.9rem;
  letter-spacing: 0.15em;
  color: var(--text-muted);
}

/* ===========================
   画像スタイル
   =========================== */
.hero-img-placeholder img {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center top;
  z-index: 2;
}
.about-img-placeholder img {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center top;
  z-index: 1;
}
.card-img img {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center;
  z-index: 1;
}

/* ===========================
   Contact
   =========================== */
#contact { background: var(--bg-alt); }
.contact-form { max-width: 720px; margin: 0 auto; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.form-group { display: flex; flex-direction: column; gap: 8px; margin-bottom: 28px; }
label {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--text-mid);
  display: flex;
  align-items: center;
  gap: 8px;
}
.required {
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  color: var(--sakura);
  border: 1px solid var(--sakura-border);
  padding: 2px 6px;
}
input, select, textarea {
  background: var(--bg);
  border: 1px solid var(--border-mid);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 300;
  padding: 14px 16px;
  outline: none;
  width: 100%;
  -webkit-appearance: none;
  transition: border-color 0.3s, box-shadow 0.3s;
  border-radius: 1px;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--sakura);
  box-shadow: 0 0 0 3px var(--sakura-pale);
}
input::placeholder, textarea::placeholder { color: var(--text-pale); }
select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23c97b84' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
  background-color: var(--bg);
}
select option { background: var(--bg-alt); color: var(--text); }
textarea { resize: vertical; min-height: 160px; }
.form-check { flex-direction: row; align-items: flex-start; }
.checkbox-label {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.checkbox-label input[type="checkbox"] {
  width: 18px; height: 18px;
  flex-shrink: 0;
  padding: 0;
  appearance: auto;
  -webkit-appearance: auto;
  accent-color: var(--sakura);
  cursor: pointer;
}
.btn-submit:disabled {
  background: var(--text-pale);
  box-shadow: none;
  cursor: not-allowed;
  transform: none;
  opacity: 0.6;
}
.link-sakura { color: var(--sakura); text-decoration: underline; text-underline-offset: 3px; }
.form-error { font-size: 0.72rem; color: var(--sakura); min-height: 1em; }
.btn-submit { width: 100%; justify-content: center; padding: 18px; font-size: 0.88rem; letter-spacing: 0.3em; margin-top: 8px; }
.contact-success { max-width: 720px; margin: 0 auto; text-align: center; padding: 80px 20px; }
.success-icon {
  width: 64px; height: 64px;
  border: 1px solid var(--sakura-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--sakura);
  background: var(--sakura-pale);
  margin: 0 auto 24px;
}
.contact-success p {
  font-family: var(--font-serif);
  font-size: 1rem;
  line-height: 2.2;
  color: var(--text-muted);
}

/* ===========================
   Footer
   =========================== */
#footer { background: var(--text); padding: 60px 0; }
.footer-deco { text-align: center; font-size: 1.2rem; color: var(--sakura); margin-bottom: 40px; opacity: 0.6; }
.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(20px, 5vw, 60px);
  text-align: center;
}
.footer-logo { display: flex; flex-direction: column; align-items: center; gap: 4px; margin-bottom: 16px; }
.footer-logo .logo-jp { color: var(--sakura-light); }
.footer-logo .logo-en { color: rgba(248,245,240,0.9); }
.footer-tagline {
  font-family: var(--font-serif);
  font-size: 0.78rem;
  letter-spacing: 0.4em;
  color: var(--sakura-light);
  opacity: 0.7;
  margin-bottom: 36px;
}

/* SNSアイコン */
.footer-social {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}
.social-link {
  width: 44px; height: 44px;
  border: 1px solid rgba(248,245,240,0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(248,245,240,0.45);
  transition: color 0.3s, border-color 0.3s, background 0.3s;
}
.social-link:hover {
  color: var(--sakura-light);
  border-color: var(--sakura-light);
  background: rgba(201,123,132,0.12);
}
/* テキスト型SNSリンク（minneなど） */
.social-link--text {
  width: auto;
  border-radius: 22px;
  padding: 0 14px;
  font-size: 0.68rem;
  letter-spacing: 0.15em;
}

.footer-nav {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-bottom: 40px;
}
.footer-nav a {
  font-size: 0.73rem;
  letter-spacing: 0.15em;
  color: rgba(248,245,240,0.4);
  transition: color 0.3s;
}
.footer-nav a:hover { color: var(--sakura-light); }
.footer-copy { font-size: 0.68rem; letter-spacing: 0.1em; color: rgba(248,245,240,0.25); }

/* ===========================
   Responsive — Tablet (≤900px)
   =========================== */
@media (max-width: 900px) {
  :root { --section-pad: 80px; }

  .hero-body { grid-template-columns: 1fr; text-align: center; gap: 40px; }
  .hero-vertical { display: none; }
  .hero-img-wrap { max-width: none; margin: 0; order: 1; display: flex; justify-content: center; }
  .hero-img-placeholder { display: none; }
  .hero-img-tag { position: static; }

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: 420px;   /* タブレット用に調整 */
  }

  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .about-visual { max-width: 360px; margin: 0 auto; }
}

/* ===========================
   Responsive — Mobile (≤600px)
   =========================== */
@media (max-width: 600px) {
  :root { --section-pad: 60px; --nav-h: 60px; }

  .nav-toggle { display: flex; }
  .nav-links {
    position: fixed;
    top: var(--nav-h); left: 0; right: 0;
    background: rgba(248, 245, 240, 0.98);
    backdrop-filter: blur(16px);
    flex-direction: column;
    gap: 0;
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s var(--ease-out-expo);
    box-shadow: var(--shadow-md);
  }
  .nav-links.open { max-height: 400px; padding: 20px 0; }
  .nav-links li { width: 100%; }
  .nav-links a { display: block; padding: 16px 32px; font-size: 0.9rem; }
  .nav-cta { margin: 16px 32px; padding: 12px 24px !important; text-align: center; }

  #hero { padding-top: var(--nav-h); }
  .hero-img-placeholder { display: none; }
  .hero-deco-circle { width: 280px; height: 280px; right: -60px; top: 60px; }
  .hero-scroll { bottom: 20px; }
  .scroll-line { height: 36px; }

  .gallery-grid {
    grid-template-columns: 1fr;
    grid-auto-rows: auto;
    gap: 16px;
  }
  .gallery-grid .card-img {
    flex: none;
    aspect-ratio: 3 / 4;
  }

  .form-row { grid-template-columns: 1fr; gap: 0; }
  .footer-nav { flex-direction: column; gap: 14px; }
}

/* ===========================
   Touch devices
   =========================== */
@media (hover: none) {
  .gallery-card:hover { transform: none; box-shadow: var(--shadow-sm); }
}