/* ============================================
   BUDDY HAIR SALON — Design I: IMMERSIVE FLOW
   Awwwards-level quality
   ============================================ */

/* ---------- Custom Properties ---------- */
:root {
  --bg: #0A0A08;
  --bg-warm: #12110E;
  --surface: #1A1916;
  --text: #F0EBE3;
  --text-muted: #9A958C;
  --accent: #C8A468;
  --accent-light: #D4B87A;
  --white: #FAFAF8;

  --ff-display: 'Cormorant Garamond', serif;
  --ff-sans: 'Space Grotesk', sans-serif;
  --ff-jp: 'Zen Kaku Gothic New', sans-serif;

  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-in-out: cubic-bezier(0.76, 0, 0.24, 1);

  --header-h: 60px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

body {
  font-family: var(--ff-jp);
  font-weight: 300;
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  cursor: none;
}

a { color: inherit; text-decoration: none; cursor: none; }
img { display: block; width: 100%; height: 100%; object-fit: cover; }
button { border: none; background: none; cursor: none; color: inherit; font: inherit; }

/* ---------- Custom Cursor ---------- */
.cursor { position: fixed; top: 0; left: 0; z-index: 9999; pointer-events: none; mix-blend-mode: difference; }
.cursor__dot {
  width: 8px; height: 8px; background: var(--white);
  border-radius: 50%; transform: translate(-50%, -50%);
  transition: transform 0.15s var(--ease-out-expo);
}
.cursor__ring {
  position: absolute; top: -16px; left: -16px;
  width: 40px; height: 40px;
  border: 1px solid rgba(255,255,255,0.4);
  border-radius: 50%; transform: translate(-50%, -50%);
  transition: width 0.4s var(--ease-out-expo), height 0.4s var(--ease-out-expo),
              top 0.4s var(--ease-out-expo), left 0.4s var(--ease-out-expo),
              border-color 0.3s;
}
body.cursor-hover .cursor__dot { transform: translate(-50%, -50%) scale(2.5); }
body.cursor-hover .cursor__ring {
  width: 60px; height: 60px; top: -26px; left: -26px;
  border-color: var(--accent);
}

@media (pointer: coarse) {
  .cursor { display: none; }
  body, a, button { cursor: auto; }
}

/* ---------- Preloader ---------- */
.preloader {
  position: fixed; inset: 0; z-index: 10000;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  background: var(--bg);
}
.preloader__mask {
  display: flex; gap: 0.05em; overflow: hidden;
  font-family: var(--ff-display); font-size: clamp(3rem, 8vw, 7rem);
  font-weight: 300; letter-spacing: 0.3em; color: var(--text);
}
.preloader__char {
  display: inline-block;
  transform: translateY(120%);
}
.preloader__line {
  width: 0; height: 1px; background: var(--accent);
  margin-top: 2rem;
}
.preloader.is-done { pointer-events: none; }

/* ---------- Header ---------- */
.header {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 clamp(1.5rem, 4vw, 3rem);
  height: var(--header-h);
  mix-blend-mode: difference;
  transform: translateY(-100%);
}
.header__logo {
  font-family: var(--ff-display); font-size: 1.1rem;
  letter-spacing: 0.25em; font-weight: 400; color: var(--white);
}
.header__nav { display: flex; gap: 2rem; }
.header__link {
  font-family: var(--ff-sans); font-size: 0.75rem;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--white); position: relative;
  padding: 0.3em 0;
}
.header__link::after {
  content: ''; position: absolute; bottom: 0; left: 0;
  width: 0; height: 1px; background: var(--accent);
  transition: width 0.4s var(--ease-out-expo);
}
.header__link:hover::after { width: 100%; }
.header__burger {
  display: none; width: 28px; height: 20px;
  flex-direction: column; justify-content: space-between;
}
.header__burger span {
  display: block; width: 100%; height: 1px; background: var(--white);
  transition: transform 0.4s var(--ease-out-expo), opacity 0.3s;
  transform-origin: center;
}
.header__burger.is-open span:first-child { transform: translateY(9.5px) rotate(45deg); }
.header__burger.is-open span:last-child { transform: translateY(-9.5px) rotate(-45deg); }

@media (max-width: 768px) {
  .header__nav { display: none; }
  .header__burger { display: flex; }
}

/* ---------- Mobile Nav ---------- */
.mobile-nav {
  position: fixed; inset: 0; z-index: 99;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 2rem;
  background: var(--bg);
  clip-path: circle(0% at calc(100% - 2.5rem) 30px);
  transition: clip-path 0.8s var(--ease-in-out);
}
.mobile-nav.is-open { clip-path: circle(150% at calc(100% - 2.5rem) 30px); }
.mobile-nav__link {
  font-family: var(--ff-display); font-size: clamp(1.8rem, 5vw, 2.5rem);
  letter-spacing: 0.15em; opacity: 0; transform: translateY(20px);
  transition: opacity 0.4s, transform 0.4s var(--ease-out-expo);
}
.mobile-nav.is-open .mobile-nav__link {
  opacity: 1; transform: translateY(0);
}
.mobile-nav.is-open .mobile-nav__link:nth-child(1) { transition-delay: 0.2s; }
.mobile-nav.is-open .mobile-nav__link:nth-child(2) { transition-delay: 0.25s; }
.mobile-nav.is-open .mobile-nav__link:nth-child(3) { transition-delay: 0.3s; }
.mobile-nav.is-open .mobile-nav__link:nth-child(4) { transition-delay: 0.35s; }
.mobile-nav.is-open .mobile-nav__link:nth-child(5) { transition-delay: 0.4s; }
.mobile-nav__info {
  margin-top: 2rem; text-align: center;
  font-family: var(--ff-sans); font-size: 0.8rem;
  color: var(--text-muted); letter-spacing: 0.05em;
  opacity: 0; transition: opacity 0.4s 0.5s;
}
.mobile-nav.is-open .mobile-nav__info { opacity: 1; }

/* ---------- HERO ---------- */
.hero {
  position: relative; height: 100vh; min-height: 600px;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.hero__bg {
  position: absolute; inset: -10%; z-index: 0;
  overflow: hidden;
  will-change: transform, opacity;
}
.hero__bg img { width: 100%; height: 100%; object-fit: cover; }
.hero__overlay {
  position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(180deg,
    rgba(10,10,8,0.3) 0%,
    rgba(10,10,8,0.1) 40%,
    rgba(10,10,8,0.5) 100%
  );
}
.hero__content {
  position: relative; z-index: 2;
  text-align: center;
}
.hero__title { overflow: hidden; }
.hero__title-line {
  display: flex; justify-content: center; gap: 0.02em;
  font-family: var(--ff-display); font-weight: 300;
  font-size: clamp(4rem, 12vw, 11rem);
  letter-spacing: 0.15em; line-height: 1;
  color: var(--white);
}
.hero__letter {
  display: inline-block;
  transform: translateY(110%);
  will-change: transform;
}
.hero__sub { margin-top: 1.5rem; }
.hero__sub-mask { overflow: hidden; }
.hero__tagline {
  font-family: var(--ff-jp); font-weight: 300;
  font-size: clamp(0.9rem, 2vw, 1.3rem);
  letter-spacing: 0.35em; color: var(--white);
  transform: translateY(100%);
}
.hero__salon-name {
  font-family: var(--ff-sans); font-weight: 300;
  font-size: clamp(0.65rem, 1vw, 0.8rem);
  letter-spacing: 0.5em; color: var(--text-muted);
  margin-top: 0.5rem; transform: translateY(100%);
}
.hero__scroll-cue {
  position: absolute; bottom: -30vh; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 0.8rem;
  opacity: 0;
}
.hero__scroll-cue span {
  font-family: var(--ff-sans); font-size: 0.6rem;
  letter-spacing: 0.3em; color: var(--text-muted);
}
.hero__scroll-line {
  width: 1px; height: 40px; background: var(--accent);
  transform-origin: top; animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { transform: scaleY(0); opacity: 0; }
  50% { transform: scaleY(1); opacity: 1; }
}
.hero__float {
  position: absolute; z-index: 2;
  font-family: var(--ff-sans); font-size: 0.6rem;
  letter-spacing: 0.25em; color: var(--text-muted);
  opacity: 0;
}
.hero__float--1 { bottom: 15%; left: 5%; }
.hero__float--2 { top: 20%; right: 5%; }

/* ---------- Section Numbers ---------- */
.concept__num, .stylist__num, .gallery__num,
.space__num, .menu__num, .access__num {
  position: absolute; top: 2rem; left: clamp(1.5rem, 4vw, 3rem);
  font-family: var(--ff-display); font-size: clamp(5rem, 10vw, 8rem);
  font-weight: 300; color: var(--accent); opacity: 0.08;
  line-height: 1; z-index: 0; pointer-events: none;
}

/* ---------- CONCEPT ---------- */
.concept {
  position: relative; padding: clamp(6rem, 12vw, 14rem) clamp(1.5rem, 4vw, 3rem);
  overflow: hidden;
}
.concept__inner {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 6vw, 6rem); align-items: center;
  max-width: 1200px; margin: 0 auto;
}
.concept__label {
  display: block;
  font-family: var(--ff-sans); font-size: 0.7rem;
  letter-spacing: 0.3em; color: var(--accent);
  margin-bottom: 2rem; opacity: 0;
  transform: translateX(-20px);
}
.concept__heading {
  font-family: var(--ff-jp); font-weight: 300;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  line-height: 2; letter-spacing: 0.08em;
  margin-bottom: 2.5rem;
}
.concept__line { display: block; overflow: hidden; }
.concept__line-inner {
  display: block; transform: translateY(100%);
  will-change: transform;
}
.concept__body {
  font-size: 0.9rem; line-height: 2.2;
  color: var(--text-muted); letter-spacing: 0.02em;
}
.concept__body p + p { margin-top: 1.5em; }
.concept__visual { position: relative; }
.concept__img-wrap {
  aspect-ratio: 4/5; overflow: hidden; border-radius: 2px;
  position: relative;
}
.concept__img-wrap img {
  transform: scale(1.15);
  transition: transform 1.2s var(--ease-out-expo);
}

@media (max-width: 768px) {
  .concept__inner { grid-template-columns: 1fr; }
  .concept__visual { order: -1; }
}

/* ---------- STYLIST ---------- */
.stylist {
  position: relative;
  padding: clamp(6rem, 12vw, 14rem) clamp(1.5rem, 4vw, 3rem);
  background: var(--bg-warm);
  overflow: hidden;
}
.stylist__inner {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 6vw, 6rem); align-items: center;
  max-width: 1200px; margin: 0 auto;
}
.stylist__portrait { position: relative; }
.stylist__portrait-wrap {
  aspect-ratio: 3/4; overflow: hidden; border-radius: 2px;
  position: relative;
}
.stylist__portrait-wrap img {
  transform: scale(1.15);
  transition: transform 1.2s var(--ease-out-expo);
}
.stylist__portrait-frame {
  position: absolute; inset: -8px;
  border: 1px solid var(--accent); opacity: 0.15;
  border-radius: 2px; pointer-events: none;
  transform: translate(12px, 12px);
}
.stylist__label {
  display: block;
  font-family: var(--ff-sans); font-size: 0.7rem;
  letter-spacing: 0.3em; color: var(--accent);
  margin-bottom: 2rem;
}
.stylist__name {
  font-family: var(--ff-jp); font-weight: 400;
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: 0.15em; margin-bottom: 0.5rem;
}
.stylist__name-line { display: block; overflow: hidden; }
.stylist__name-inner {
  display: block; transform: translateY(100%);
  will-change: transform;
}
.stylist__name-en {
  font-family: var(--ff-display); font-size: 0.85rem;
  letter-spacing: 0.2em; color: var(--text-muted);
  font-style: italic; margin-bottom: 0.3rem;
}
.stylist__role {
  font-family: var(--ff-sans); font-size: 0.7rem;
  letter-spacing: 0.2em; color: var(--text-muted);
  margin-bottom: 2rem;
}
.stylist__message {
  font-size: 0.9rem; line-height: 2.2; color: var(--text-muted);
}

@media (max-width: 768px) {
  .stylist__inner { grid-template-columns: 1fr; }
}

/* ---------- GALLERY (3D Spread) ---------- */
.gallery {
  position: relative; height: 300vh;
}
.gallery__pin {
  position: sticky; top: 0;
  height: 100vh; display: flex;
  align-items: center; justify-content: center;
  overflow: clip;
  perspective: 1200px;
}
.gallery__title {
  position: absolute; z-index: 2;
  display: flex; gap: 0.05em; pointer-events: none;
  font-family: var(--ff-display); font-weight: 300;
  font-size: clamp(3rem, 9vw, 8rem);
  letter-spacing: 0.2em; color: var(--white);
  mix-blend-mode: difference;
}
.gallery__title-char {
  display: inline-block; opacity: 0;
  transform: translateY(40px) rotateX(40deg);
}
.gallery__stage {
  position: relative; width: 100%; height: 100%;
  transform-style: preserve-3d;
}
.gallery__card {
  position: absolute; border-radius: 4px; overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%) scale(0.5);
  opacity: 0; will-change: transform, opacity;
}
.gallery__card--1 { width: 28vw; height: 35vw; }
.gallery__card--2 { width: 22vw; height: 30vw; }
.gallery__card--3 { width: 25vw; height: 32vw; }
.gallery__card--4 { width: 20vw; height: 28vw; }
.gallery__card--5 { width: 18vw; height: 24vw; }
.gallery__progress {
  position: absolute; bottom: 3rem; left: 50%;
  transform: translateX(-50%); width: 120px; height: 2px;
  background: rgba(255,255,255,0.1); border-radius: 1px;
}
.gallery__progress-bar {
  height: 100%; width: 0; background: var(--accent);
  border-radius: 1px;
}

@media (max-width: 768px) {
  .gallery__card--1 { width: 55vw; height: 65vw; }
  .gallery__card--2 { width: 45vw; height: 55vw; }
  .gallery__card--3 { width: 50vw; height: 60vw; }
  .gallery__card--4 { width: 40vw; height: 50vw; }
  .gallery__card--5 { width: 35vw; height: 45vw; }
}

/* ---------- SPACE ---------- */
.space {
  position: relative; height: 300vh;
}
.space__pin {
  position: sticky; top: 0;
  height: 100vh; overflow: hidden;
}
.space__label {
  position: absolute; top: 2rem; right: clamp(1.5rem, 4vw, 3rem);
  z-index: 3; font-family: var(--ff-sans); font-size: 0.7rem;
  letter-spacing: 0.3em; color: var(--accent);
}
.space__slides { position: relative; width: 100%; height: 100%; }
.space__slide {
  position: absolute; inset: 0;
  opacity: 0;
  transform: translateX(100%);
  transition: none;
}
.space__slide--active {
  opacity: 1;
  transform: translateX(0);
}
.space__slide img { width: 100%; height: 100%; object-fit: cover; }
.space__caption {
  position: absolute; bottom: 3rem; left: clamp(1.5rem, 4vw, 3rem);
  font-family: var(--ff-jp); font-size: 0.9rem;
  letter-spacing: 0.15em; color: var(--white);
  text-shadow: 0 2px 8px rgba(0,0,0,0.5);
}
.space__counter {
  position: absolute; bottom: 3rem; right: clamp(1.5rem, 4vw, 3rem);
  z-index: 3; font-family: var(--ff-sans); font-size: 0.8rem;
  letter-spacing: 0.15em; color: var(--white);
}

/* ---------- MENU ---------- */
.menu {
  position: relative;
  padding: clamp(6rem, 12vw, 14rem) clamp(1.5rem, 4vw, 3rem);
  overflow: hidden;
}
.menu__inner { max-width: 800px; margin: 0 auto; }
.menu__header { margin-bottom: 4rem; }
.menu__label {
  display: block;
  font-family: var(--ff-sans); font-size: 0.7rem;
  letter-spacing: 0.3em; color: var(--accent);
  margin-bottom: 1.5rem;
}
.menu__heading {
  font-family: var(--ff-jp); font-weight: 300;
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  letter-spacing: 0.1em;
}
.menu__heading-line { display: block; overflow: hidden; }
.menu__heading-inner {
  display: block; transform: translateY(100%);
  will-change: transform;
}
.menu__item {
  border-bottom: 1px solid rgba(255,255,255,0.06);
  padding: 1.5rem 0;
  transition: padding-left 0.4s var(--ease-out-expo);
}
.menu__item:hover { padding-left: 1rem; }
.menu__item-header {
  display: flex; align-items: baseline; gap: 1rem;
}
.menu__item-name {
  font-family: var(--ff-jp); font-size: 1rem;
  letter-spacing: 0.08em; white-space: nowrap;
}
.menu__item-line {
  flex: 1; height: 1px;
  background: repeating-linear-gradient(90deg,
    var(--text-muted) 0, var(--text-muted) 2px,
    transparent 2px, transparent 6px
  );
  opacity: 0.2;
}
.menu__item-price {
  font-family: var(--ff-sans); font-size: 0.95rem;
  letter-spacing: 0.05em; color: var(--accent-light);
  white-space: nowrap;
}
.menu__note {
  margin-top: 2rem; font-size: 0.75rem;
  color: var(--text-muted); letter-spacing: 0.05em;
}

/* ---------- ACCESS ---------- */
.access {
  position: relative;
  padding: clamp(6rem, 12vw, 14rem) clamp(1.5rem, 4vw, 3rem);
  background: var(--bg-warm);
  overflow: hidden;
}
.access__inner {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 6vw, 6rem); align-items: start;
  max-width: 1200px; margin: 0 auto;
}
.access__label {
  display: block;
  font-family: var(--ff-sans); font-size: 0.7rem;
  letter-spacing: 0.3em; color: var(--accent);
  margin-bottom: 1.5rem;
}
.access__heading {
  font-family: var(--ff-jp); font-weight: 300;
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  letter-spacing: 0.1em; margin-bottom: 3rem;
}
.access__heading-line { display: block; overflow: hidden; }
.access__heading-inner {
  display: block; transform: translateY(100%);
  will-change: transform;
}
.access__info { display: flex; flex-direction: column; gap: 1.5rem; }
.access__row {
  display: grid; grid-template-columns: 5rem 1fr; gap: 1rem;
  font-size: 0.9rem; line-height: 1.8;
}
.access__row dt {
  font-family: var(--ff-sans); font-size: 0.7rem;
  letter-spacing: 0.15em; color: var(--text-muted);
  padding-top: 0.35em;
}
.access__row dd a {
  color: var(--accent-light);
  transition: opacity 0.3s;
}
.access__row dd a:hover { opacity: 0.7; }
.access__img-wrap {
  aspect-ratio: 4/3; overflow: hidden; border-radius: 2px;
  position: sticky; top: calc(var(--header-h) + 2rem);
}
.access__img-wrap img {
  transform: scale(1.15);
  transition: transform 1.2s var(--ease-out-expo);
}

@media (max-width: 768px) {
  .access__inner { grid-template-columns: 1fr; }
  .access__img-wrap { position: relative; top: auto; }
}

/* ---------- CTA ---------- */
.cta {
  padding: clamp(6rem, 10vw, 10rem) clamp(1.5rem, 4vw, 3rem);
  text-align: center;
}
.cta__text {
  display: flex; flex-direction: column; gap: 0.3em;
  font-family: var(--ff-jp); font-size: clamp(1rem, 2vw, 1.3rem);
  letter-spacing: 0.12em; line-height: 1.8;
  margin-bottom: 3rem;
}
.cta__btn {
  display: inline-flex; flex-direction: column;
  align-items: center; gap: 0.5rem;
  padding: 1.5rem 3rem;
  border: 1px solid var(--accent);
  border-radius: 60px;
  transition: background 0.5s var(--ease-out-expo),
              color 0.3s, transform 0.4s var(--ease-out-expo);
}
.cta__btn:hover {
  background: var(--accent);
  color: var(--bg);
}
.cta__btn-text {
  font-family: var(--ff-sans); font-size: clamp(1.2rem, 2.5vw, 1.6rem);
  letter-spacing: 0.12em;
}
.cta__btn-sub {
  font-size: 0.7rem; letter-spacing: 0.1em;
  color: var(--text-muted);
  transition: color 0.3s;
}
.cta__btn:hover .cta__btn-sub { color: var(--bg); }

/* ---------- Footer ---------- */
.footer {
  padding: 3rem clamp(1.5rem, 4vw, 3rem) 2rem;
  border-top: 1px solid rgba(255,255,255,0.04);
}
.footer__inner {
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center;
  justify-content: space-between; flex-wrap: wrap; gap: 1.5rem;
}
.footer__brand { display: flex; flex-direction: column; gap: 0.3rem; }
.footer__logo {
  font-family: var(--ff-display); font-size: 1.2rem;
  letter-spacing: 0.2em; font-weight: 300;
}
.footer__tagline {
  font-size: 0.7rem; color: var(--text-muted);
  letter-spacing: 0.15em;
}
.footer__links {
  display: flex; gap: 1.5rem;
  font-family: var(--ff-sans); font-size: 0.7rem;
  letter-spacing: 0.1em;
}
.footer__links a { color: var(--text-muted); transition: color 0.3s; }
.footer__links a:hover { color: var(--accent); }
.footer__copy {
  width: 100%; display: flex;
  justify-content: space-between;
  padding-top: 1.5rem; border-top: 1px solid rgba(255,255,255,0.04);
  font-size: 0.65rem; color: var(--text-muted);
  letter-spacing: 0.05em;
}

/* ---------- Reveal Classes ---------- */
.reveal { opacity: 0; transform: translateY(30px); }
.reveal-img {
  overflow: hidden;
}
.reveal-img img {
  transform: translateY(100%) scale(1.15);
  opacity: 0;
}

/* ---------- Reduced Motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  .preloader { display: none; }
  .header { transform: none; }
  .hero__bg { transform: none; opacity: 1; border-radius: 0; }
  .hero__letter, .hero__tagline, .hero__salon-name { transform: none; }
  .hero__scroll-cue { opacity: 1; }
  .reveal { opacity: 1; transform: none; }
  .reveal-img img { transform: none; opacity: 1; }
  .concept__line-inner, .stylist__name-inner,
  .menu__heading-inner, .access__heading-inner { transform: none; }
  .gallery__card { transform: none; opacity: 1; }
  .gallery__title-char { opacity: 1; transform: none; }
  .space__slide { opacity: 1; transform: none; }
}