/* ========================================
   Rich UI Elements - Premium Edition
   ======================================== */

/* --- Loading Screen (Ultra Rich) --- */
.loader {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* 左右カーテン背景 */
.loader__curtain-left,
.loader__curtain-right {
  position: absolute;
  top: 0;
  width: 50%;
  height: 100%;
  background-color: var(--color-bg-cream);
  transition: transform 1s cubic-bezier(.77,0,.18,1);
  z-index: 1;
}

.loader__curtain-left { left: 0; transform-origin: left; }
.loader__curtain-right { right: 0; transform-origin: right; }

.loader.is-loaded .loader__curtain-left {
  transform: translateX(-100%);
}

.loader.is-loaded .loader__curtain-right {
  transform: translateX(100%);
}

/* 中央コンテンツ */
.loader__content {
  position: relative;
  z-index: 2;
  text-align: center;
}

/* ロゴ円形オーナメント */
.loader__circle {
  width: 140px; height: 140px;
  border-radius: 50%;
  border: 1px solid var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 32px;
  position: relative;
  opacity: 0;
  animation: loaderCircleIn .8s ease .1s forwards;
}

.loader__circle::before {
  content: '';
  position: absolute;
  top: -6px; left: -6px;
  right: -6px; bottom: -6px;
  border-radius: 50%;
  border: 1px solid rgba(176,144,112,.2);
  animation: loaderSpin 4s linear infinite;
}

.loader__circle::after {
  content: '';
  position: absolute;
  top: 6px; left: 6px;
  right: 6px; bottom: 6px;
  border-radius: 50%;
  border: 1px dashed rgba(176,144,112,.15);
  animation: loaderSpin 6s linear infinite reverse;
}

@keyframes loaderSpin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@keyframes loaderCircleIn {
  0% { opacity: 0; transform: scale(.7); }
  100% { opacity: 1; transform: scale(1); }
}

/* ロゴテキスト */
.loader__logo {
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 300;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--color-accent);
}

/* サロン名 */
.loader__name {
  font-family: var(--font-heading);
  font-size: clamp(20px, 3vw, 30px);
  font-weight: 400;
  letter-spacing: .2em;
  color: var(--color-text);
  margin-bottom: 8px;
  opacity: 0;
  animation: loaderFadeIn .8s ease .3s forwards;
}

/* サブテキスト */
.loader__sub {
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 300;
  letter-spacing: .35em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 40px;
  opacity: 0;
  animation: loaderFadeIn .8s ease .5s forwards;
}

/* プログレスバー */
.loader__progress {
  width: 200px;
  position: relative;
  opacity: 0;
  animation: loaderFadeIn .6s ease .6s forwards;
}

.loader__bar {
  width: 100%;
  height: 1px;
  background-color: var(--color-border);
  position: relative;
  overflow: hidden;
}

.loader__bar::after {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 0; height: 100%;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
  animation: loaderBar 2.2s cubic-bezier(.4,0,.2,1) forwards;
}

.loader__percent {
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 300;
  letter-spacing: .15em;
  color: var(--color-text-muted);
  text-align: right;
  margin-top: 8px;
}

/* ローダーパーティクル */
.loader__particles {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
}

.loader__particle {
  position: absolute;
  width: 3px; height: 3px;
  border-radius: 50%;
  background-color: var(--color-accent);
  opacity: 0;
  animation: loaderParticle linear infinite;
}

@keyframes loaderParticle {
  0% { opacity: 0; transform: translateY(0); }
  10% { opacity: .3; }
  90% { opacity: .15; }
  100% { opacity: 0; transform: translateY(-60vh); }
}

@keyframes loaderFadeIn {
  0% { opacity: 0; transform: translateY(12px); }
  100% { opacity: 1; transform: translateY(0); }
}

@keyframes loaderBar {
  0% { width: 0; }
  100% { width: 100%; }
}

/* フェードアウト */
.loader.is-loaded .loader__content {
  opacity: 0;
  transform: scale(.95);
  transition: opacity .5s ease, transform .5s ease;
}

.loader.is-loaded .loader__particles {
  opacity: 0;
  transition: opacity .5s ease;
}

body:not(.is-loaded) { overflow: hidden; }

/* --- Custom Cursor (PC only) --- */
.cursor-dot,
.cursor-ring {
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: 9998;
  border-radius: 50%;
  mix-blend-mode: difference;
}

.cursor-dot {
  width: 6px; height: 6px;
  background-color: #fff;
  transform: translate(-50%, -50%);
  transition: width .2s, height .2s, background-color .2s;
}

.cursor-ring {
  width: 36px; height: 36px;
  border: 1px solid rgba(255,255,255,.4);
  transform: translate(-50%, -50%);
  transition: width .3s ease, height .3s ease, border-color .3s ease;
}

.cursor-ring.is-hover {
  width: 56px; height: 56px;
  border-color: var(--color-accent);
}

.cursor-dot.is-hover {
  width: 0; height: 0;
}

@media (hover: none) {
  .cursor-dot, .cursor-ring { display: none; }
}

/* --- Scroll Progress --- */
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 0;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
  z-index: 1001;
  transition: width .08s linear;
}

/* --- Decorative Vertical Text --- */
.deco-vertical {
  position: absolute;
  writing-mode: vertical-rl;
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 300;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--color-border);
  z-index: 0;
  opacity: .4;
}

.deco-vertical--left { left: 16px; top: 50%; transform: translateY(-50%); }
.deco-vertical--right { right: 16px; top: 50%; transform: translateY(-50%); }

/* --- Reveal Line (横線が伸びる) --- */
.reveal-line {
  display: block;
  width: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  transition: width 1.4s var(--ease-out);
}

.reveal-line.is-visible { width: 100%; }
.reveal-line--center { margin: 0 auto; max-width: 240px; }

/* --- Image Reveal (カーテンスライド) --- */
.img-reveal {
  position: relative;
  overflow: hidden;
}

.img-reveal::after {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 100%; height: 100%;
  background-color: var(--color-bg-cream);
  transform-origin: right;
  transition: transform 1.2s var(--ease-out);
  z-index: 2;
}

.img-reveal.is-revealed::after {
  transform: scaleX(0);
}

.img-reveal img {
  transform: scale(1.15);
  transition: transform 1.6s var(--ease-out) .3s;
}

.img-reveal.is-revealed img {
  transform: scale(1);
}

/* --- 3D Tilt Card --- */
.tilt-card {
  transition: transform .4s ease;
  transform-style: preserve-3d;
  perspective: 1000px;
}

/* --- Full Width Image Banner --- */
.fullwidth-image {
  position: relative;
  width: 100%;
  height: 55vh;
  min-height: 320px;
  overflow: hidden;
}

.fullwidth-image img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 8s ease;
}

.fullwidth-image:hover img {
  transform: scale(1.03);
}

.fullwidth-image--parallax img {
  height: 130%;
  object-position: center;
}

.fullwidth-image__overlay {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: linear-gradient(135deg, rgba(0,0,0,.35), rgba(0,0,0,.15));
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
}

.fullwidth-image__text {
  color: #fff;
  text-align: center;
}

.fullwidth-image__text .heading-en {
  font-size: clamp(9px, .9vw, 11px);
  display: block;
  margin-bottom: 14px;
  opacity: .5;
  letter-spacing: .35em;
}

.fullwidth-image__text .heading-jp {
  font-size: clamp(24px, 3.5vw, 40px);
  font-weight: 400;
  letter-spacing: .15em;
  line-height: 1.6;
}

/* --- Decorative Dots --- */
.deco-dots {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin: 28px 0;
}

.deco-dots span {
  width: 4px; height: 4px;
  border-radius: 50%;
  background-color: var(--color-accent);
  opacity: .4;
  animation: dotPulse 2s ease infinite;
}

.deco-dots span:nth-child(2) { animation-delay: .3s; }
.deco-dots span:nth-child(3) { animation-delay: .6s; }

@keyframes dotPulse {
  0%, 100% { opacity: .3; transform: scale(1); }
  50% { opacity: .8; transform: scale(1.3); }
}

/* --- Number Badge --- */
.num-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px; height: 52px;
  border: 1px solid var(--color-accent-light);
  border-radius: 50%;
  font-family: var(--font-en);
  font-size: 14px;
  font-weight: 300;
  color: var(--color-accent-light);
  margin-bottom: 18px;
  transition: background-color .4s ease, color .4s ease;
}

.feature-item:hover .num-badge {
  background-color: var(--color-accent-light);
  color: var(--color-bg-dark);
}

/* --- Quote Block --- */
.quote-block {
  text-align: center;
  padding: 80px 40px;
  position: relative;
  overflow: hidden;
}

.quote-block::before {
  content: '\201C';
  font-family: var(--font-en);
  font-size: 120px;
  font-weight: 300;
  color: var(--color-accent);
  opacity: .08;
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  line-height: 1;
}

.quote-block__text {
  font-family: var(--font-heading);
  font-size: clamp(16px, 2.2vw, 24px);
  font-weight: 400;
  line-height: 2.2;
  letter-spacing: .1em;
  color: var(--color-text);
  max-width: 720px;
  margin: 0 auto;
  position: relative;
}

.quote-block__author {
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: .25em;
  color: var(--color-text-muted);
  margin-top: 24px;
  text-transform: uppercase;
}

/* --- Stats Row --- */
.stats-row {
  display: flex;
  justify-content: center;
  gap: clamp(40px, 8vw, 100px);
  flex-wrap: wrap;
  padding: 24px 0;
}

.stat-item {
  text-align: center;
  position: relative;
}

.stat-item::after {
  content: '';
  position: absolute;
  right: calc(-1 * clamp(20px, 4vw, 50px));
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 40px;
  background-color: var(--color-border);
}

.stat-item:last-child::after { display: none; }

.stat-item__number {
  font-family: var(--font-en);
  font-size: clamp(40px, 5.5vw, 64px);
  font-weight: 300;
  color: var(--color-accent);
  line-height: 1.1;
  display: block;
}

.stat-item__label {
  font-size: var(--fs-small);
  color: var(--color-text-sub);
  letter-spacing: .12em;
  margin-top: 10px;
  display: block;
}

/* --- Horizontal Scroll Gallery --- */
.hscroll-gallery {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding: 0 40px 24px;
  scrollbar-width: none;
  cursor: grab;
}

.hscroll-gallery:active { cursor: grabbing; }
.hscroll-gallery::-webkit-scrollbar { display: none; }

.hscroll-gallery__item {
  flex-shrink: 0;
  width: clamp(260px, 28vw, 380px);
  aspect-ratio: 3 / 4;
  scroll-snap-align: start;
  overflow: hidden;
  position: relative;
}

.hscroll-gallery__item::after {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: linear-gradient(to top, rgba(0,0,0,.2) 0%, transparent 40%);
  opacity: 0;
  transition: opacity .4s ease;
}

.hscroll-gallery__item:hover::after { opacity: 1; }

.hscroll-gallery__item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 1s var(--ease-out);
}

.hscroll-gallery__item:hover img {
  transform: scale(1.05);
}

/* --- Ticker / Marquee --- */
.ticker {
  overflow: hidden;
  white-space: nowrap;
  padding: 24px 0;
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
  background-color: var(--color-bg);
}

.ticker__inner {
  display: inline-block;
  animation: ticker 40s linear infinite;
}

.ticker:hover .ticker__inner {
  animation-play-state: paused;
}

.ticker__text {
  display: inline-block;
  font-family: var(--font-en);
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 300;
  letter-spacing: .08em;
  color: transparent;
  -webkit-text-stroke: 1px var(--color-border);
  text-transform: uppercase;
  padding: 0 36px;
  transition: color .4s ease, -webkit-text-stroke .4s ease;
}

.ticker__text:hover {
  color: var(--color-accent);
  -webkit-text-stroke: 0;
}

@keyframes ticker {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* --- Stagger Children --- */
.stagger-children > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .6s var(--ease-out), transform .6s var(--ease-out);
}

.stagger-children.is-visible > *:nth-child(1) { transition-delay: 0s; opacity: 1; transform: translateY(0); }
.stagger-children.is-visible > *:nth-child(2) { transition-delay: .08s; opacity: 1; transform: translateY(0); }
.stagger-children.is-visible > *:nth-child(3) { transition-delay: .16s; opacity: 1; transform: translateY(0); }
.stagger-children.is-visible > *:nth-child(4) { transition-delay: .24s; opacity: 1; transform: translateY(0); }
.stagger-children.is-visible > *:nth-child(5) { transition-delay: .32s; opacity: 1; transform: translateY(0); }
.stagger-children.is-visible > *:nth-child(6) { transition-delay: .4s; opacity: 1; transform: translateY(0); }
.stagger-children.is-visible > *:nth-child(7) { transition-delay: .48s; opacity: 1; transform: translateY(0); }
.stagger-children.is-visible > *:nth-child(8) { transition-delay: .56s; opacity: 1; transform: translateY(0); }
.stagger-children.is-visible > *:nth-child(9) { transition-delay: .64s; opacity: 1; transform: translateY(0); }
.stagger-children.is-visible > *:nth-child(10) { transition-delay: .72s; opacity: 1; transform: translateY(0); }

/* --- Glow Button --- */
.btn-glow {
  position: relative;
  overflow: visible;
}

.btn-glow::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  width: 100%; height: 100%;
  transform: translate(-50%, -50%);
  border: 1px solid var(--color-accent);
  opacity: 0;
  transition: all .6s ease;
}

.btn-glow:hover::after {
  width: calc(100% + 12px);
  height: calc(100% + 12px);
  opacity: .3;
}

/* --- Gradient Text --- */
.gradient-text {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light), var(--color-text));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* --- Float Animation --- */
.float-anim {
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* --- Shine Effect on Images --- */
.img-shine {
  position: relative;
  overflow: hidden;
}

.img-shine::before {
  content: '';
  position: absolute;
  top: 0; left: -75%;
  width: 50%; height: 100%;
  background: linear-gradient(
    to right,
    rgba(255,255,255,0) 0%,
    rgba(255,255,255,.15) 50%,
    rgba(255,255,255,0) 100%
  );
  transform: skewX(-25deg);
  z-index: 3;
  transition: left .8s ease;
}

.img-shine:hover::before {
  left: 125%;
}

/* --- Parallax Decorative Shape --- */
.deco-shape {
  position: absolute;
  border-radius: 50%;
  opacity: .04;
  z-index: 0;
  pointer-events: none;
}

.deco-shape--1 {
  width: 300px; height: 300px;
  border: 1px solid var(--color-accent);
  top: -100px; right: -80px;
}

.deco-shape--2 {
  width: 200px; height: 200px;
  background-color: var(--color-accent);
  bottom: -60px; left: -60px;
}

/* --- Section Divider with Text --- */
.section-divider {
  display: flex;
  align-items: center;
  gap: 20px;
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 40px;
}

.section-divider__line {
  flex: 1;
  height: 1px;
  background-color: var(--color-border-light);
}

.section-divider__text {
  font-family: var(--font-en);
  font-size: 13px;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  flex-shrink: 0;
}

/* --- Split Char --- */
.split-char {
  display: inline-block;
  opacity: 0;
  transform: translateY(100%) rotateX(-80deg);
  transition: opacity .5s ease, transform .5s ease;
  transform-origin: bottom center;
}

.split-char.is-visible {
  opacity: 1;
  transform: translateY(0) rotateX(0);
}

/* --- Section Divider --- */
.section-divider {
  display: flex;
  align-items: center;
  gap: 20px;
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 40px;
  opacity: 0;
  transition: opacity .8s ease;
}

.section-divider.is-visible { opacity: 1; }

.section-divider__line {
  flex: 1;
  height: 1px;
  background-color: var(--color-border-light);
  transform: scaleX(0);
  transition: transform 1.2s var(--ease-out);
  transform-origin: left;
}

.section-divider.is-visible .section-divider__line {
  transform: scaleX(1);
}

.section-divider.is-visible .section-divider__line:last-child {
  transform-origin: right;
}

.section-divider__text {
  font-family: var(--font-en);
  font-size: 13px;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  flex-shrink: 0;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .deco-vertical { display: none; }
  .fullwidth-image { height: 40vh; min-height: 240px; }
  .quote-block { padding: 56px 20px; }
  .hscroll-gallery { padding: 0 20px 16px; gap: 6px; }
  .hscroll-gallery__item { width: clamp(200px, 55vw, 280px); }
  .ticker__text { font-size: clamp(22px, 4vw, 36px); padding: 0 20px; }
  .stats-row { gap: 32px; }
  .stat-item::after { display: none; }
  .cursor-dot, .cursor-ring { display: none; }
  .deco-shape { display: none; }
  .section-divider { padding: 0 20px; }
}

/* PC only: フォント1.2倍 */
@media (min-width: 769px) {
  .loader__name { font-size: clamp(24px, 3.6vw, 36px); }
  .loader__sub { font-size: 16px; }
  .loader__logo { font-size: 16px; }
  .deco-vertical { font-size: 12px; }
  .quote-block__text { font-size: clamp(19px, 2.6vw, 29px); }
  .quote-block__author { font-size: 14px; }
  .stat-item__number { font-size: clamp(48px, 6.6vw, 77px); }
  .stat-item__label { font-size: 15px; }
  .ticker__text { font-size: clamp(38px, 6vw, 67px); }
  .section-divider__text { font-size: 12px; }
  .split-char { font-size: inherit; }
}