/* ============================================
   èlle — Nail Salon
   Light / Dark mode via CSS variables + JS toggle
   ============================================ */

:root {
  /* Light (default) */
  --bg: #faf8f5;
  --bg-soft: #f2efe9;
  --surface: #ffffff;
  --text: #2c2926;
  --text-muted: #6b6560;
  --accent: #a67c52;
  --accent-soft: #c9a882;
  --border: #e5e0d8;
  --hero-overlay: rgba(250, 248, 245, 0.85);
  --shadow: rgba(44, 41, 38, 0.06);
  --shadow-strong: rgba(44, 41, 38, 0.12);
}

[data-theme="dark"] {
  --bg: #1a1816;
  --bg-soft: #24211f;
  --surface: #2a2724;
  --text: #e8e3dd;
  --text-muted: #a89f95;
  --accent: #d4b896;
  --accent-soft: #b8946a;
  --border: #3a3632;
  --hero-overlay: rgba(26, 24, 22, 0.9);
  --shadow: rgba(0, 0, 0, 0.3);
  --shadow-strong: rgba(0, 0, 0, 0.5);
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Outfit", -apple-system, BlinkMacSystemFont, sans-serif;
  font-weight: 400;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  transition: background 0.4s ease, color 0.3s ease;
  overflow-x: hidden;
}

/* ----- Header ----- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 2rem;
  min-height: 6rem;
  height: auto;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
  opacity: 0;
  transform: translateY(-20px);
  animation: fadeInDown 0.6s ease-out 0.2s forwards;
}

.site-header.hidden {
  animation: none;
  transform: translateY(-100%);
}

[data-theme="dark"] .site-header {
  background: rgba(26, 24, 22, 0.75);
}

.site-header.scrolled {
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05), 0 1px 0 var(--border);
}

[data-theme="dark"] .site-header.scrolled {
  background: rgba(26, 24, 22, 0.95);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4), 0 1px 0 var(--border);
}

.logo {
  display: block;
  text-decoration: none;
  line-height: 1;
  position: relative;
  height: 4.5rem;
  min-height: 4.5rem;
  display: flex;
  align-items: center;
  background: transparent;
}

.logo-img,
.logo img,
.logo-img-light,
.logo-img-dark {
  height: 4.5rem !important;
  width: auto !important;
  max-height: 4.5rem !important;
  min-height: 4.5rem !important;
  display: block;
  object-fit: contain;
  object-position: left center;
  transition: opacity 0.3s ease;
  background: transparent;
  image-rendering: auto;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transform: translateZ(0);
  backface-visibility: hidden;
}

/* ライトモード用ロゴ（黒文字）・そのまま表示 */
.logo-img-light {
  opacity: 1;
  display: block;
}

.logo-img-dark {
  position: absolute;
  top: 0;
  left: 0;
  opacity: 0;
  display: block;
  pointer-events: none;
}

/* ダークモード用ロゴ（白文字） */
[data-theme="dark"] .logo-img-light {
  opacity: 0;
  pointer-events: none;
  display: none;
}

[data-theme="dark"] .logo-img-dark {
  opacity: 1;
  position: relative;
  display: block;
  pointer-events: auto;
}

.nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

.nav a {
  background: linear-gradient(135deg, var(--text-muted) 0%, var(--text-muted) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  transition: background 0.2s ease;
}

.nav a:hover {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-soft) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.theme-toggle {
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
}

.theme-toggle:hover {
  background: var(--bg-soft);
  border-color: var(--accent-soft);
  transform: scale(1.05);
}

.theme-toggle .icon-moon {
  display: none;
}

[data-theme="dark"] .theme-toggle .icon-sun {
  display: none;
}

[data-theme="dark"] .theme-toggle .icon-moon {
  display: inline;
  font-size: 1rem;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 48px;
  height: 48px;
  min-width: 48px;
  min-height: 48px;
  padding: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

.nav-toggle:hover {
  background: var(--bg-soft);
  border-color: var(--accent-soft);
}

.nav-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2.5px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.2s ease;
  transform-origin: center;
}

.nav-overlay {
  display: none;
}

/* ----- Hero ----- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 8rem 0 4rem;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 90% at 50% 40%, var(--accent-soft) 0%, transparent 60%),
    linear-gradient(135deg, var(--bg) 0%, var(--bg-soft) 50%, var(--bg) 100%);
  opacity: 0.4;
  transition: opacity 0.4s ease;
}

[data-theme="dark"] .hero-bg {
  opacity: 0.25;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 80rem;
  margin: 0 auto;
  padding: 0 4rem;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 6rem;
  align-items: center;
}

.hero-left {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.hero-tagline {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--text-muted);
  writing-mode: vertical-rl;
  text-orientation: mixed;
  margin-left: auto;
  opacity: 0;
  animation: fadeIn 0.6s ease-out 0.6s forwards;
}

.hero-title-wrap {
  position: relative;
  margin: 0;
  line-height: 0.85;
  background: transparent;
}

.hero-logo,
.hero-title-wrap img,
.hero-logo-light,
.hero-logo-dark {
  height: clamp(9rem, 28vw, 20rem) !important;
  width: auto !important;
  max-width: 100%;
  min-height: 9rem !important;
  object-fit: contain;
  object-position: left center;
  transition: opacity 0.3s ease;
  background: transparent;
}

/* ライトモード用ロゴ（黒文字）・そのまま表示 */
.hero-logo-light {
  opacity: 0;
  transform: translateX(-40px);
  animation: fadeInLeft 0.8s ease-out 0.8s forwards;
  position: relative;
}

.hero-logo-dark {
  position: absolute;
  top: 0;
  left: 0;
  opacity: 0;
  transform: translateX(-40px);
}

/* ダークモード用ロゴ（白文字） */
[data-theme="dark"] .hero-logo-light {
  opacity: 0;
  pointer-events: none;
  animation: none;
  display: none;
}

[data-theme="dark"] .hero-logo-dark {
  opacity: 0;
  position: relative;
  transform: translateX(-40px);
  animation: fadeInLeft 0.8s ease-out 0.8s forwards;
}

.hero-right {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  max-width: 32rem;
}

.hero-sub {
  font-size: 1.1rem;
  font-weight: 300;
  color: var(--text-muted);
  line-height: 1.8;
  letter-spacing: 0.03em;
  text-align: center;
  opacity: 0;
  transform: translateX(30px);
  animation: fadeInRight 0.6s ease-out 1s forwards;
}

.btn {
  display: inline-block;
  padding: 0.9rem 2rem;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: 2rem;
  transition: background 0.25s, background-position 0.4s ease, color 0.25s, transform 0.2s, box-shadow 0.25s;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: linear-gradient(120deg, var(--accent) 20%, var(--accent-soft) 50%, var(--accent) 80%);
  background-size: 200% 100%;
  background-position: 0% 50%;
  color: #fff;
  box-shadow: 0 4px 15px rgba(166, 124, 82, 0.3);
}

.btn-primary:hover {
  background-position: 100% 50%;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(166, 124, 82, 0.4);
}

[data-theme="dark"] .btn-primary {
  box-shadow: 0 4px 15px rgba(212, 184, 150, 0.25);
}

[data-theme="dark"] .btn-primary:hover {
  box-shadow: 0 6px 20px rgba(212, 184, 150, 0.35);
}

.hero-right .btn {
  align-self: center;
  opacity: 0;
  transform: translateX(30px);
  animation: fadeInRight 0.6s ease-out 1.2s forwards;
}

.hero-scroll {
  position: absolute;
  bottom: 3rem;
  right: 4rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  opacity: 0;
  animation: fadeIn 0.6s ease-out 1.4s forwards;
}

.hero-scroll span {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--accent) 0%, var(--accent-soft) 50%, transparent 100%);
  border-radius: 2px;
  animation: scroll-pulse 2s ease-in-out infinite;
}

@keyframes scroll-pulse {
  0%, 100% { opacity: 0.4; transform: scaleY(0.8); }
  50% { opacity: 1; transform: scaleY(1); }
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* ----- Animation Keyframes ----- */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ----- Sections ----- */
.section {
  padding: 8rem 4rem;
  transition: background 0.4s ease, color 0.3s ease;
}

.container {
  max-width: 90rem;
  margin: 0 auto;
}

.section-title {
  font-family: "Cormorant Garamond", serif;
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 400;
  background: linear-gradient(135deg, var(--text) 0%, var(--accent) 50%, var(--accent-soft) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 4rem;
  letter-spacing: -0.01em;
  position: relative;
  padding-left: 4rem;
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.section-title::before {
  content: "01";
  position: absolute;
  left: 0;
  top: 0.1em;
  font-size: 0.4em;
  font-weight: 600;
  color: var(--accent);
  opacity: 0.4;
  letter-spacing: 0;
}

#gallery .section-title::before {
  content: "02";
}

#services .section-title::before {
  content: "03";
}

#contact .section-title::before {
  content: "04";
}

.section-title.animate {
  opacity: 1;
  transform: translateY(0);
}

/* ----- About ----- */
.about-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 6rem;
  align-items: start;
}

.about-visual-container {
  position: relative;
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.about-visual-container.animate {
  opacity: 1;
  transform: translateX(0);
}

.about-slider {
  position: relative;
  width: 100%;
  aspect-ratio: 3 / 4;
  max-height: 500px;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: 
    0 4px 20px rgba(0, 0, 0, 0.06),
    inset 0 0 0 1px rgba(255, 255, 255, 0.5);
  transition: box-shadow 0.3s ease;
}

[data-theme="dark"] .about-slider {
  box-shadow: 
    0 4px 20px rgba(0, 0, 0, 0.3),
    inset 0 0 0 1px rgba(255, 255, 255, 0.05);
}

.about-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transform: scale(1.05);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}

.about-slide.active {
  opacity: 1;
  transform: scale(1);
  pointer-events: auto;
}

.about-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

.about-dots {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.about-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border);
  border: 1px solid var(--border);
  cursor: default;
  padding: 0;
  transition: background 0.3s ease, border-color 0.3s ease, transform 0.2s ease;
}

.about-dot.active {
  background: var(--accent);
  border-color: var(--accent);
  transform: scale(1.2);
}

.about-text {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.8s ease 0.2s, transform 0.8s ease 0.2s;
  padding-top: 2rem;
}

.about-text.animate {
  opacity: 1;
  transform: translateX(0);
}

.about-text .lead {
  font-size: 1.4rem;
  font-weight: 400;
  font-family: "Cormorant Garamond", serif;
  color: var(--text);
  margin-bottom: 2rem;
  line-height: 1.6;
  letter-spacing: 0.01em;
}

.about-text p {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  line-height: 1.8;
  font-size: 1rem;
}

/* ----- Services ----- */
.services {
  background: var(--bg-soft);
  position: relative;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
  max-width: 70rem;
  margin: 0 auto;
}

.service-card {
  background: var(--surface);
  padding: 3rem 2.5rem;
  border-radius: 0;
  border: none;
  border-left: 2px solid var(--border);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s, opacity 0.6s ease, transform 0.6s ease;
  opacity: 0;
  transform: translateY(40px);
  position: relative;
}

.service-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--accent) 0%, var(--accent-soft) 100%);
  opacity: 0;
  transition: opacity 0.25s ease;
}

.service-card:hover::before {
  opacity: 1;
}

.service-card.animate {
  opacity: 1;
  transform: translateY(0);
}

.service-card:nth-child(1) {
  transition-delay: 0s;
}

.service-card:nth-child(2) {
  transition-delay: 0.15s;
  margin-top: 2rem;
}

.service-card:nth-child(3) {
  transition-delay: 0.3s;
  margin-top: 4rem;
}

.service-card:hover {
  transform: translateX(8px);
  background: var(--bg-soft);
}

[data-theme="dark"] .service-card:hover {
  background: var(--bg);
}

.service-icon {
  display: block;
  font-size: 0.75rem;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-soft) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1rem;
}

.service-card h3 {
  font-family: "Cormorant Garamond", serif;
  font-size: 1.35rem;
  font-weight: 400;
  background: linear-gradient(135deg, var(--text) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.75rem;
}

.service-card p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ----- Contact ----- */
.contact-block {
  max-width: 42rem;
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
  padding-left: 4rem;
  position: relative;
}

.contact-block::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--accent) 0%, var(--accent-soft) 100%);
  opacity: 0.3;
}

.contact-block.animate {
  opacity: 1;
  transform: translateX(0);
}

.contact-lead {
  font-size: 1.3rem;
  font-family: "Cormorant Garamond", serif;
  color: var(--text);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.contact-address {
  font-style: normal;
  margin: 0;
}

.contact-address p {
  margin: 0 0 0.5rem;
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.7;
  letter-spacing: 0.02em;
}

.contact-postal {
  font-size: 0.95rem;
}

.contact-tel a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

.contact-tel a:hover {
  color: var(--accent-soft);
  text-decoration: underline;
}

.contact-hours {
  margin-top: 0.75rem;
  font-size: 0.95rem;
}

.contact-closed {
  margin-top: 0.5rem;
  font-size: 0.95rem;
}

.contact-map-link {
  margin: 1.5rem 0 0;
}

.contact-map-link a {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.2s ease;
}

.contact-map-link a:hover {
  color: var(--accent-soft);
  text-decoration: underline;
}

.contact-map {
  margin-top: 3rem;
  max-width: 42rem;
  aspect-ratio: 16 / 10;
  min-height: 220px;
  border-radius: 0;
  overflow: hidden;
  border: 1px solid var(--border);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.contact-map.animate {
  opacity: 1;
  transform: translateY(0);
}

.contact-map iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

/* ----- Gallery ----- */
.gallery {
  background: var(--bg-soft);
}

.gallery-container {
  position: relative;
  max-width: 60rem;
  margin: 0 auto;
  padding: 0 1rem;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.gallery-container.animate {
  opacity: 1;
  transform: translateY(0);
}

.gallery-slider {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: 12px;
  background: var(--surface);
  cursor: grab;
  user-select: none;
  -webkit-user-select: none;
  border: 2px solid transparent;
  background-image: 
    linear-gradient(var(--surface), var(--surface)),
    linear-gradient(135deg, var(--accent) 0%, var(--accent-soft) 50%, var(--accent) 100%);
  background-origin: border-box;
  background-clip: padding-box, border-box;
  box-shadow: 
    0 8px 32px rgba(0, 0, 0, 0.08),
    0 2px 8px rgba(0, 0, 0, 0.04),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

[data-theme="dark"] .gallery-slider {
  box-shadow: 
    0 8px 32px rgba(0, 0, 0, 0.4),
    0 2px 8px rgba(0, 0, 0, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.gallery-slider:hover {
  transform: translateY(-4px);
  box-shadow: 
    0 12px 48px rgba(0, 0, 0, 0.12),
    0 4px 12px rgba(0, 0, 0, 0.06),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .gallery-slider:hover {
  box-shadow: 
    0 12px 48px rgba(0, 0, 0, 0.6),
    0 4px 12px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.gallery-slider:active {
  cursor: grabbing;
}

.gallery-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transform: scale(1.05);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  -webkit-transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}

.gallery-slide.active {
  opacity: 1;
  transform: scale(1);
  pointer-events: auto;
}

.gallery-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  -webkit-user-drag: none;
  user-select: none;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}

.gallery-slide.active img {
  transform: scale(1);
}

.gallery-slider:hover .gallery-slide.active img {
  transform: scale(1.08);
}

.gallery-dots {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.gallery-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border);
  border: 2px solid transparent;
  cursor: pointer;
  padding: 0;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.gallery-dot::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0);
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
}

.gallery-dot:hover {
  transform: scale(1.3);
  border-color: var(--accent-soft);
}

.gallery-dot:hover::before {
  transform: translate(-50%, -50%) scale(0.6);
  opacity: 0.3;
}

.gallery-dot.active {
  background: var(--accent);
  border-color: var(--accent);
  transform: scale(1.4);
  box-shadow: 0 0 0 3px rgba(166, 124, 82, 0.2);
}

[data-theme="dark"] .gallery-dot.active {
  box-shadow: 0 0 0 3px rgba(212, 184, 150, 0.2);
}

/* ----- Footer ----- */
.site-footer {
  padding: 2.5rem 2rem;
  border-top: 1px solid var(--border);
  text-align: center;
  transition: border-color 0.3s, background 0.4s;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease, border-color 0.3s, background 0.4s;
}

.site-footer.animate {
  opacity: 1;
  transform: translateY(0);
}

.footer-sns {
  display: flex;
  justify-content: center;
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}

.sns-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  color: var(--text-muted);
  transition: color 0.2s ease, transform 0.2s ease;
}

.sns-link:hover {
  color: var(--accent);
  transform: translateY(-2px);
}

.sns-icon {
  width: 1.35rem;
  height: 1.35rem;
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ----- Responsive ----- */
@media (max-width: 1200px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: 4rem;
    text-align: center;
  }

  .hero-left {
    align-items: center;
  }

  .hero-tagline {
    writing-mode: horizontal-tb;
    text-orientation: initial;
    margin-left: 0;
  }

  .hero-title-wrap {
    display: flex;
    justify-content: center;
  }

  .hero-logo {
    object-position: center;
  }

  .hero-right {
    max-width: 100%;
    align-items: center;
  }

  .section {
    padding: 6rem 3rem;
  }
}

@media (max-width: 900px) {
  .section {
    padding: 6rem 3rem;
  }

  .hero-content {
    padding: 0 3rem;
    gap: 4rem;
  }

  .hero-logo,
  .hero-title-wrap img,
  .hero-logo-light,
  .hero-logo-dark {
    height: clamp(10rem, 32vw, 20rem) !important;
    min-height: 10rem !important;
    width: auto !important;
    image-rendering: auto;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transform: translateZ(0);
    backface-visibility: hidden;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 4rem;
  }

  .about-visual-container {
    max-width: 100%;
  }

  .about-slider {
    max-height: 400px;
  }

  .services-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .service-card:nth-child(2),
  .service-card:nth-child(3) {
    margin-top: 0;
  }

  .service-card {
    padding: 2.5rem 2rem;
  }

  .section-title {
    padding-left: 3.5rem;
    font-size: clamp(2.25rem, 5.5vw, 3.25rem);
    margin-bottom: 3.5rem;
  }

  .section-title::before {
    font-size: 0.45em;
  }

  .contact-block {
    padding: 2.5rem 2rem;
  }
}

@media (max-width: 680px) {
  .nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width:  min(80vw, 280px);
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    gap: 1.5rem;
    background: var(--surface);
    border-left: 2px solid var(--border);
    border-top: 2px solid var(--border);
    border-bottom: 2px solid var(--border);
    border-right: none;
    border-radius: 0;
    box-shadow: -8px 0 32px rgba(0, 0, 0, 0.2);
    transform: translateX(100%);
    transition: transform 0.6s ease, opacity 0.6s ease;
    padding: 5rem 1.5rem 2rem;
    z-index: 101;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .nav.hidden {
    opacity: 0;
    pointer-events: none;
  }

  [data-theme="dark"] .nav {
    background: var(--surface);
    border-color: var(--border);
    box-shadow: -8px 0 32px rgba(0, 0, 0, 0.6);
  }

  .nav.open {
    transform: translateX(0);
  }

  .nav a {
    color: var(--text);
    font-size: 1rem;
    font-weight: 400;
    padding: 0.75rem 0;
    text-align: center;
    background: none;
    -webkit-text-fill-color: var(--text);
    transition: color 0.3s ease, transform 0.3s ease;
    width: 100%;
    display: block;
  }

  .nav a:hover {
    color: var(--accent);
    background: none;
    -webkit-text-fill-color: var(--accent);
    transform: translateX(4px);
  }

  .nav a:last-of-type {
    margin-bottom: 0.5rem;
  }

  .nav .theme-toggle {
    margin-top: 1rem;
    width: 3rem;
    height: 3rem;
    align-self: center;
  }

  .nav-overlay {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 99;
    background: rgba(0, 0, 0, 0.35);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
  }

  .nav-overlay.is-open {
    opacity: 1;
    pointer-events: auto;
  }

  [data-theme="dark"] .nav-overlay {
    background: rgba(0, 0, 0, 0.5);
  }

  .nav-toggle {
    display: flex;
    z-index: 102;
    position: relative;
  }

  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translateY(7.5px);
  }

  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translateY(-7.5px);
  }

  .section {
    padding: 5rem 2rem;
  }

  .hero {
    padding: 6rem 0 3rem;
  }

  .hero-content {
    padding: 0 2rem;
  }

  .hero-logo,
  .hero-title-wrap img,
  .hero-logo-light,
  .hero-logo-dark {
    height: clamp(11rem, 38vw, 22rem) !important;
    min-height: 11rem !important;
  }

  .hero-scroll {
    right: 2rem;
    bottom: 2rem;
  }

  .section-title {
    padding-left: 2.5rem;
    font-size: clamp(1.75rem, 6vw, 2.5rem);
  }

  .container {
    max-width: 100%;
  }

  .contact-map {
    margin-top: 2rem;
    min-height: 180px;
    aspect-ratio: 4 / 3;
  }

  .site-header {
    padding: 1rem 1.5rem;
    min-height: 5.5rem;
  }

  .logo {
    height: 5rem;
    min-height: 5rem;
  }

  .logo .logo-img,
  .logo img,
  .logo-img-light,
  .logo-img-dark {
    height: 5rem !important;
    max-height: 5rem !important;
    min-height: 5rem !important;
    width: auto !important;
    image-rendering: auto;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transform: translateZ(0);
    backface-visibility: hidden;
  }

  .gallery-container {
    max-width: 100%;
  }

  .gallery-container {
    padding: 0 0.5rem;
  }

  .gallery-slider {
    padding-bottom: 133.33%;
    border-radius: 8px;
    border-width: 1.5px;
  }

  .gallery-slider:hover {
    transform: translateY(-2px);
  }

  .gallery-dots {
    margin-top: 1.25rem;
    gap: 0.5rem;
  }

  .gallery-dot {
    width: 8px;
    height: 8px;
  }

  .gallery-dot.active {
    transform: scale(1.3);
  }
}