/* ============================================
   BUDDY HAIR SALON — Design D: MINIMAL JAPANESE
   ============================================ */

/* --- Tokens --- */
:root {
  --bg: #F8F6F1;
  --text: #2C2820;
  --text-light: #9A9389;
  --accent: #8B7355;
  --line: rgba(44, 40, 32, .1);

  --ff-display: 'Zen Old Mincho', serif;
  --ff-body: 'Zen Kaku Gothic New', sans-serif;
  --ff-en: 'Cormorant', serif;

  --space-section: clamp(5rem, 4rem + 5vw, 10rem);
  --space-inner: clamp(1.5rem, 1rem + 2vw, 4rem);

  --duration-slow: 1.2s;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--ff-body);
  font-weight: 300;
  color: var(--text);
  background-color: var(--bg);
  line-height: 1.9;
  letter-spacing: 0.04em;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

/* --- Loader --- */
.loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  transition: opacity 0.8s ease, visibility 0.8s ease;
}

.loader.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader__char {
  font-family: var(--ff-display);
  font-size: clamp(4rem, 3rem + 5vw, 8rem);
  color: var(--accent);
  opacity: 0;
}

/* --- Header --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem var(--space-inner);
  background: rgba(248, 246, 241, 0.9);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
  transform: translateY(0);
  transition: transform 0.5s var(--ease-out);
}

.header.is-hidden {
  transform: translateY(-100%);
}

.header__logo img {
  height: 22px;
  width: auto;
}

.header__nav-list {
  display: flex;
  gap: 2rem;
}

.header__nav-list a {
  font-family: var(--ff-body);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--text-light);
  transition: color 0.3s ease;
}

.header__nav-list a:hover {
  color: var(--text);
}

.header__hamburger {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  width: 28px;
}

.header__hamburger-line {
  display: block;
  width: 100%;
  height: 1px;
  background: var(--text);
  transition: transform 0.4s var(--ease-out), opacity 0.3s ease;
}

.header__hamburger.is-open .header__hamburger-line:first-child {
  transform: translateY(3.5px) rotate(45deg);
}

.header__hamburger.is-open .header__hamburger-line:last-child {
  transform: translateY(-3.5px) rotate(-45deg);
}

/* --- Mobile Nav --- */
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 99;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.mobile-nav.is-open {
  opacity: 1;
  visibility: visible;
}

.mobile-nav__list {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.mobile-nav__list a {
  font-family: var(--ff-display);
  font-size: 1.25rem;
  letter-spacing: 0.15em;
  color: var(--text);
}

/* --- Hero --- */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
}

.hero__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-inner);
  gap: clamp(2rem, 3vw, 6rem);
}

.hero__text {
  flex-shrink: 0;
}

.hero__title {
  writing-mode: vertical-rl;
  font-family: var(--ff-display);
  font-weight: 400;
  font-size: clamp(2.2rem, 1.5rem + 3vw, 4rem);
  letter-spacing: 0.25em;
  line-height: 1.8;
  color: var(--text);
}

.hero__title-char {
  display: inline-block;
  opacity: 0;
}

.hero__sub {
  font-family: var(--ff-en);
  font-weight: 300;
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  color: var(--text-light);
  margin-top: 2rem;
  writing-mode: vertical-rl;
  opacity: 0;
}

.hero__image {
  flex: 1;
  max-width: 50%;
}

.hero__image-wrap {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
}

.hero__image-wrap img {
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 4 / 5;
}

.hero__scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
}

.hero__scroll-line {
  display: block;
  width: 1px;
  height: 40px;
  background: var(--text-light);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; opacity: 0; }
  30% { transform: scaleY(1); transform-origin: top; opacity: 1; }
  70% { transform: scaleY(1); transform-origin: bottom; opacity: 1; }
  100% { transform: scaleY(0); transform-origin: bottom; opacity: 0; }
}

/* --- Section Shared --- */
.section-label,
.concept__label,
.stylist__label,
.style-gallery__label,
.space__label,
.menu__label,
.access__label {
  font-family: var(--ff-en);
  font-weight: 300;
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  color: var(--text-light);
  text-transform: uppercase;
  display: block;
  margin-bottom: 0.75rem;
}

.concept__line,
.stylist__line,
.style-gallery__line,
.space__line,
.menu__line,
.access__line {
  width: 40px;
  height: 1px;
  background: var(--accent);
  margin-bottom: 1rem;
  transform-origin: left center;
}

.concept__title,
.style-gallery__title,
.space__title,
.menu__title,
.access__title {
  font-family: var(--ff-display);
  font-weight: 400;
  font-size: 1rem;
  letter-spacing: 0.2em;
  color: var(--text);
}

/* --- Concept --- */
.concept {
  padding: var(--space-section) 0;
}

.concept__inner {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 var(--space-inner);
}

.concept__watermark {
  position: absolute;
  top: -2rem;
  left: -2rem;
  font-family: var(--ff-display);
  font-size: 15vw;
  font-weight: 700;
  color: var(--text);
  opacity: 0.04;
  line-height: 1;
  pointer-events: none;
  user-select: none;
}

.concept__content {
  position: relative;
  z-index: 1;
}

.concept__body {
  margin-top: 3rem;
}

.concept__body p {
  font-size: 0.875rem;
  line-height: 2.2;
  color: var(--text);
  margin-bottom: 2rem;
}

.concept__body p:last-child {
  margin-bottom: 0;
}

/* --- Stylist --- */
.stylist {
  padding: var(--space-section) 0;
}

.stylist__inner {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--space-inner);
  text-align: center;
}

.stylist__label,
.stylist__line {
  margin-left: auto;
  margin-right: auto;
}

.stylist__content {
  position: relative;
  display: inline-block;
  margin-top: 3rem;
}

.stylist__photo-wrap {
  width: min(40vw, 320px);
  overflow: hidden;
  border: 1px solid var(--line);
  margin: 0 auto;
}

.stylist__photo {
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 3 / 4;
}

.stylist__name-vertical {
  position: absolute;
  right: -3rem;
  top: 50%;
  transform: translateY(-50%);
  writing-mode: vertical-rl;
  font-family: var(--ff-display);
  font-size: 0.8rem;
  letter-spacing: 0.3em;
  color: var(--text-light);
}

.stylist__bio {
  margin-top: 3rem;
  text-align: left;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.stylist__name {
  font-family: var(--ff-display);
  font-weight: 400;
  font-size: 1.1rem;
  letter-spacing: 0.15em;
  margin-bottom: 1.5rem;
}

.stylist__name-en {
  display: block;
  font-family: var(--ff-en);
  font-weight: 300;
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  color: var(--text-light);
  margin-top: 0.25rem;
}

.stylist__bio p {
  font-size: 0.8125rem;
  line-height: 2.2;
  color: var(--text);
  margin-bottom: 1.25rem;
}

.stylist__bio p:last-child {
  margin-bottom: 0;
}

/* --- Divider Band --- */
.divider-band {
  position: relative;
  height: clamp(200px, 25vw, 350px);
  overflow: hidden;
}

.divider-band__image-wrap {
  position: absolute;
  inset: -30px 0;
  overflow: hidden;
}

.divider-band__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.divider-band__overlay {
  position: absolute;
  inset: 0;
  background:
    url('buddy-images/texture_washi.jpg') center / cover no-repeat,
    rgba(248, 246, 241, 0.5);
  mix-blend-mode: soft-light;
  opacity: 0.6;
}

/* --- Style Gallery --- */
.style-gallery {
  padding: var(--space-section) 0;
}

.style-gallery__inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-inner);
}

.style-gallery__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.5rem, 2vw, 3rem);
  margin-top: 3rem;
}

.style-gallery__item {
  text-align: center;
}

.style-gallery__img-wrap {
  overflow: hidden;
  border: 1px solid var(--line);
}

.style-gallery__img-wrap img {
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 3 / 4;
}

.style-gallery__item figcaption {
  font-family: var(--ff-en);
  font-weight: 300;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--text-light);
  margin-top: 1rem;
}

/* --- Space --- */
.space {
  padding: var(--space-section) 0;
}

.space__inner {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 var(--space-inner);
}

.space__watermark {
  position: absolute;
  top: -1rem;
  right: 0;
  font-family: var(--ff-display);
  font-size: 15vw;
  font-weight: 700;
  color: var(--text);
  opacity: 0.04;
  line-height: 1;
  pointer-events: none;
  user-select: none;
}

.space__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(1rem, 1.5vw, 2rem);
  margin-top: 3rem;
}

.space__img-wrap {
  overflow: hidden;
  border: 1px solid var(--line);
}

.space__img-wrap img {
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 7 / 5;
}

/* --- Menu --- */
.menu {
  padding: var(--space-section) 0;
}

.menu__inner {
  max-width: 680px;
  margin: 0 auto;
  padding: 0 var(--space-inner);
}

.menu__category {
  margin-top: 3rem;
}

.menu__category-title {
  font-family: var(--ff-en);
  font-weight: 300;
  font-size: 0.8rem;
  letter-spacing: 0.25em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.menu__list {
  display: flex;
  flex-direction: column;
}

.menu__item {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}

.menu__item dt {
  font-size: 0.8125rem;
  font-weight: 300;
}

.menu__item dd {
  font-family: var(--ff-en);
  font-weight: 300;
  font-size: 0.8125rem;
  letter-spacing: 0.05em;
  color: var(--text);
  white-space: nowrap;
  padding-left: 1rem;
}

.menu__note {
  font-size: 0.7rem;
  color: var(--text-light);
  margin-top: 2rem;
}

/* --- Access --- */
.access {
  padding: var(--space-section) 0;
}

.access__inner {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 var(--space-inner);
}

.access__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 3vw, 4rem);
  margin-top: 3rem;
}

.access__list {
  display: flex;
  flex-direction: column;
}

.access__item {
  display: flex;
  gap: 1.5rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}

.access__item dt {
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--text-light);
  min-width: 4.5rem;
  flex-shrink: 0;
}

.access__item dd {
  font-size: 0.8125rem;
  font-weight: 300;
  line-height: 1.8;
}

.access__item a {
  transition: color 0.3s ease;
}

.access__item a:hover {
  color: var(--accent);
}

.access__map {
  border: 1px solid var(--line);
  overflow: hidden;
}

.access__map iframe {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 280px;
}

/* --- Footer --- */
.footer {
  padding: 2.5rem var(--space-inner);
  text-align: center;
  border-top: 1px solid var(--line);
}

.footer__text {
  font-family: var(--ff-en);
  font-weight: 300;
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  color: var(--text-light);
}

/* ============================================
   Washi texture background (subtle)
   ============================================ */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: url('buddy-images/texture_washi.jpg') center / cover no-repeat;
  opacity: 0.03;
  pointer-events: none;
  z-index: -1;
}

/* ============================================
   Responsive — 768px
   ============================================ */
@media (max-width: 768px) {
  .header__nav {
    display: none;
  }

  .header__hamburger {
    display: flex;
  }

  .hero__inner {
    flex-direction: column;
    justify-content: center;
    gap: 2.5rem;
    padding-top: 5rem;
  }

  .hero__text {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
  }

  .hero__title {
    font-size: clamp(1.8rem, 1.2rem + 2.5vw, 2.8rem);
    height: auto;
    max-height: 50vh;
  }

  .hero__image {
    max-width: 80%;
  }

  .concept__watermark,
  .space__watermark {
    font-size: 25vw;
  }

  .stylist__name-vertical {
    display: none;
  }

  .style-gallery__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
  }

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

  .access__content {
    grid-template-columns: 1fr;
  }

  .access__map {
    min-height: 250px;
  }
}

/* ============================================
   Responsive — 480px
   ============================================ */
@media (max-width: 480px) {
  body {
    font-size: 15px;
  }

  .hero {
    min-height: 100svh;
  }

  .hero__inner {
    padding-top: 4.5rem;
    gap: 2rem;
  }

  .hero__title {
    font-size: 1.6rem;
  }

  .hero__image {
    max-width: 90%;
  }

  .style-gallery__grid {
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
  }

  .style-gallery__item:nth-child(3) {
    grid-column: 1 / -1;
    max-width: 60%;
    margin: 0 auto;
  }

  .space__grid {
    grid-template-columns: 1fr;
  }

  .stylist__photo-wrap {
    width: 65vw;
  }

  .menu__item {
    padding: 0.75rem 0;
  }

  .access__item {
    flex-direction: column;
    gap: 0.25rem;
  }

  .access__item dt {
    min-width: auto;
  }
}

/* ============================================
   Reduced Motion
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .hero__scroll-line {
    animation: none;
    opacity: 0.3;
  }
}