/* =============================================
   由香 Official Website - style.css
   カラーパレット: ホワイト × シャンパンゴールド × ウォームベージュ
   ============================================= */

/* ---------- CSS Variables ---------- */
:root {
  --color-bg:           #FFFFFF;
  --color-bg-soft:      #FAFAF7;
  --color-text:         #2C2C2C;
  --color-text-light:   #888888;
  --color-accent:       #C9A87C;
  --color-accent-light: #F0E6D3;
  --color-accent-dark:  #A8885A;
  --color-border:       #E8E0D5;
  --color-white:        #FFFFFF;

  --font-serif:   'Noto Serif JP', serif;
  --font-sans:    'Noto Sans JP', sans-serif;
  --font-display: 'Cormorant Garamond', serif;
  --font-script:  'Great Vibes', cursive;

  --shadow-sm:  0 2px 12px rgba(0,0,0,0.06);
  --shadow-md:  0 6px 24px rgba(0,0,0,0.10);
  --shadow-lg:  0 12px 40px rgba(0,0,0,0.14);

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --transition: 0.3s ease;
  --header-h: 70px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

ul { list-style: none; }

/* ---------- Scroll Animation ---------- */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Utility ---------- */
.container {
  width: 90%;
  max-width: 1100px;
  margin: 0 auto;
}
.container--narrow {
  max-width: 680px;
}

.section {
  padding: 100px 0;
}
.section--soft {
  background: var(--color-bg-soft);
}

.section__header {
  text-align: center;
  margin-bottom: 60px;
}
.section__label {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  color: var(--color-accent);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.section__title {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: 0.08em;
}
.section__desc {
  margin-top: 16px;
  color: var(--color-text-light);
  font-size: 0.95rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
}
.btn--white {
  background: var(--color-white);
  color: var(--color-text);
  border-color: var(--color-white);
}
.btn--white:hover {
  background: transparent;
  color: var(--color-white);
}
.btn--outline {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,0.7);
}
.btn--outline:hover {
  background: rgba(255,255,255,0.15);
}
.btn--gold {
  background: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
}
.btn--gold:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.btn--full {
  width: 100%;
  text-align: center;
  padding: 16px;
}

/* =============================================
   HEADER
   ============================================= */
.header {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  height: var(--header-h);
  z-index: 1000;
  transition: background var(--transition), box-shadow var(--transition);
}
.header.is-scrolled {
  background: rgba(255,255,255,0.96);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(8px);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  width: 90%;
  max-width: 1100px;
  margin: 0 auto;
}
.header__logo {
  display: flex;
  flex-direction: column;
  gap: 1px;
  line-height: 1;
  transition: color var(--transition);
}
.header__logo-name {
  font-family: var(--font-script);
  font-size: 2.4rem;
  font-weight: 400;
  color: var(--color-white);
  letter-spacing: 0.03em;
  transition: color var(--transition);
}
.header__logo-sub {
  font-family: var(--font-sans);
  font-size: 0.58rem;
  font-weight: 300;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.70);
  transition: color var(--transition);
}
.header.is-scrolled .header__logo-name {
  color: var(--color-text);
}
.header.is-scrolled .header__logo-sub {
  color: var(--color-text-light);
}

.header__nav-list {
  display: flex;
  align-items: center;
  gap: 36px;
}
.header__nav-list a {
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.9);
  position: relative;
}
.header.is-scrolled .header__nav-list a {
  color: var(--color-text);
}
.header__nav-list a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 1px;
  background: var(--color-accent);
  transition: width var(--transition);
}
.header__nav-list a:hover::after { width: 100%; }

.header__nav-contact {
  padding: 8px 20px !important;
  border: 1px solid rgba(255,255,255,0.6) !important;
  border-radius: 50px;
}
.header.is-scrolled .header__nav-contact {
  border-color: var(--color-accent) !important;
  color: var(--color-accent) !important;
}
.header__nav-contact:hover {
  background: rgba(255,255,255,0.15) !important;
}
.header.is-scrolled .header__nav-contact:hover {
  background: var(--color-accent) !important;
  color: var(--color-white) !important;
}

.header__hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}
.header__hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: var(--transition);
}
.header.is-scrolled .header__hamburger span {
  background: var(--color-text);
}
.header__hamburger.is-open span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}
.header__hamburger.is-open span:nth-child(2) {
  opacity: 0;
}
.header__hamburger.is-open span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* =============================================
   HERO
   ============================================= */
.hero {
  position: relative;
  height: 100svh;
  min-height: 600px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding-top: calc(var(--header-h) + 24px);
  padding-bottom: 56px;
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
}
.hero__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}
.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0,0,0,0.50) 0%,
    rgba(0,0,0,0.25) 35%,
    rgba(0,0,0,0.65) 100%
  );
}
.hero__top,
.hero__bottom {
  position: relative;
  z-index: 1;
  text-align: center;
  color: var(--color-white);
  padding: 0 20px;
}

.hero__en {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.35em;
  color: rgba(255,255,255,0.75);
  margin-bottom: 16px;
}
.hero__name {
  font-family: var(--font-script);
  font-size: clamp(5rem, 15vw, 11rem);
  font-weight: 400;
  letter-spacing: 0.04em;
  line-height: 1;
  margin-bottom: 0;
  text-shadow: 0 4px 32px rgba(0,0,0,0.45);
  background: linear-gradient(135deg, #ffffff 30%, #e8d8c0 70%, #c9a87c 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero__tagline {
  font-size: clamp(0.85rem, 2vw, 1rem);
  font-weight: 300;
  letter-spacing: 0.1em;
  line-height: 2;
  color: rgba(255,255,255,0.9);
  margin-bottom: 40px;
}
.hero__btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero__scroll {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.7);
  margin-top: 20px;
}
.hero__scroll-line {
  display: block;
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,0.5);
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  51%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}
.hero__scroll-text {
  font-family: var(--font-display);
  font-size: 0.65rem;
  letter-spacing: 0.25em;
}

/* =============================================
   ABOUT
   ============================================= */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 70px;
  align-items: center;
}
.about__photo {
  position: relative;
}
.about__photo img {
  width: 100%;
  height: 520px;
  object-fit: cover;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
}
.about__photo::before {
  content: '';
  position: absolute;
  top: -16px; left: -16px;
  width: calc(100% - 40px);
  height: calc(100% - 40px);
  border: 2px solid var(--color-accent-light);
  border-radius: var(--radius-md);
  z-index: -1;
}
.about__name {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}
.about__name span {
  display: block;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 300;
  font-style: italic;
  color: var(--color-accent);
  letter-spacing: 0.1em;
  margin-top: 4px;
}
.about__bio {
  margin: 24px 0 36px;
  color: var(--color-text-light);
  font-size: 0.95rem;
  line-height: 2;
}
.about__profile {
  border-top: 1px solid var(--color-border);
  padding-top: 24px;
}
.about__profile-item {
  display: flex;
  gap: 20px;
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9rem;
}
.about__profile-label {
  color: var(--color-accent);
  font-weight: 500;
  min-width: 80px;
  flex-shrink: 0;
}
.about__profile-value {
  color: var(--color-text-light);
}

/* =============================================
   SCHEDULE
   ============================================= */
.schedule__note {
  text-align: center;
  color: var(--color-text-light);
  margin-bottom: 40px;
  font-size: 0.95rem;
}
.schedule__grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 10px;
}
.schedule__card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px 10px;
  text-align: center;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
.schedule__card--active {
  border-color: var(--color-accent);
  box-shadow: 0 4px 20px rgba(201, 168, 124, 0.2);
}
.schedule__day {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 8px;
}
.schedule__info {
  font-size: 0.78rem;
  color: var(--color-text);
  line-height: 1.5;
}
.schedule__info small {
  color: var(--color-text-light);
  font-size: 0.72rem;
}
.schedule__card:not(.schedule__card--active) .schedule__day {
  color: var(--color-text-light);
}
.schedule__card:not(.schedule__card--active) .schedule__info {
  color: var(--color-text-light);
}
.schedule__caption {
  text-align: center;
  margin-top: 24px;
  font-size: 0.8rem;
  color: var(--color-text-light);
}

/* =============================================
   GALLERY
   ============================================= */
.gallery__grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 12px;
}
.gallery__item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-sm);
  cursor: pointer;
}
.gallery__item--tall {
  grid-row: span 2;
}
.gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
  min-height: 240px;
}
.gallery__item--tall img {
  min-height: 100%;
}
.gallery__item-overlay {
  position: absolute;
  inset: 0;
  background: rgba(201, 168, 124, 0);
  transition: background 0.3s ease;
}
.gallery__item:hover img {
  transform: scale(1.05);
}
.gallery__item:hover .gallery__item-overlay {
  background: rgba(201, 168, 124, 0.15);
}

/* =============================================
   LINKS
   ============================================= */
.links__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  max-width: 600px;
  margin: 0 auto;
}
.links__card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 22px 28px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.links__card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.links__card-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.links__card--youtube .links__card-icon  { background: #FF0000; color: #fff; }
.links__card--tiktok  .links__card-icon  { background: #000000; color: #fff; }
.links__card--instagram .links__card-icon {
  background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
  color: #fff;
}
.links__card--x .links__card-icon { background: #000000; color: #fff; }

.links__card--youtube:hover  { border-color: #FF0000; }
.links__card--tiktok:hover   { border-color: #69C9D0; }
.links__card--instagram:hover { border-color: #E1306C; }
.links__card--x:hover        { border-color: #888; }

.links__card-text {
  display: flex;
  flex-direction: column;
  flex: 1;
}
.links__card-service {
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.03em;
}
.links__card-desc {
  font-size: 0.8rem;
  color: var(--color-text-light);
  margin-top: 2px;
}
.links__card-arrow {
  color: var(--color-text-light);
  font-size: 1.1rem;
  flex-shrink: 0;
}

/* =============================================
   CONTACT
   ============================================= */
.form__group {
  margin-bottom: 24px;
}
.form__label {
  display: block;
  font-size: 0.88rem;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--color-text);
  letter-spacing: 0.03em;
}
.form__required {
  background: var(--color-accent);
  color: white;
  font-size: 0.7rem;
  padding: 2px 7px;
  border-radius: 4px;
  margin-left: 6px;
  vertical-align: middle;
}
.form__input,
.form__select,
.form__textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--color-text);
  background: var(--color-white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form__input:focus,
.form__select:focus,
.form__textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(201,168,124,0.15);
}
.form__input::placeholder,
.form__textarea::placeholder {
  color: #BBBBBB;
}
.form__textarea {
  resize: vertical;
  min-height: 150px;
}
.form__select {
  appearance: none;
  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 fill='%23888' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  cursor: pointer;
}
.form__group--privacy {
  margin-bottom: 32px;
}
.form__checkbox-label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--color-text-light);
  cursor: pointer;
}
.form__checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--color-accent);
  cursor: pointer;
  flex-shrink: 0;
}

/* =============================================
   FOOTER
   ============================================= */
.footer {
  background: var(--color-text);
  color: rgba(255,255,255,0.7);
  padding: 50px 0 30px;
}
.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}
.footer__logo {
  font-family: var(--font-script);
  font-size: 3rem;
  font-weight: 400;
  color: var(--color-white);
  letter-spacing: 0.04em;
}
.footer__nav {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  justify-content: center;
}
.footer__nav a {
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.6);
  transition: color var(--transition);
}
.footer__nav a:hover {
  color: var(--color-accent);
}
.footer__copy {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.35);
  letter-spacing: 0.05em;
}

/* =============================================
   RESPONSIVE
   ============================================= */

/* タブレット */
@media (max-width: 900px) {
  .section { padding: 80px 0; }

  .header__nav { display: none; }
  .header__hamburger { display: flex; }

  /* Mobile nav open */
  .header__nav.is-open {
    display: flex;
    position: fixed;
    top: var(--header-h);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--header-h));
    background: rgba(255,255,255,0.98);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0;
  }
  .header__nav.is-open .header__nav-list {
    flex-direction: column;
    gap: 0;
    width: 100%;
    text-align: center;
  }
  .header__nav.is-open .header__nav-list li {
    border-bottom: 1px solid var(--color-border);
  }
  .header__nav.is-open .header__nav-list a {
    display: block;
    padding: 20px;
    font-size: 1.1rem;
    color: var(--color-text) !important;
    letter-spacing: 0.1em;
  }
  .header__nav.is-open .header__nav-contact {
    border: none !important;
    color: var(--color-accent) !important;
  }

  .about__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .about__photo img {
    height: 380px;
  }
  .about__photo::before { display: none; }

  .schedule__grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
  }

  .gallery__grid {
    grid-template-columns: 1fr 1fr;
  }
  .gallery__item--tall { grid-row: span 1; }

  .links__grid {
    grid-template-columns: 1fr;
    max-width: 500px;
  }
}

/* スマートフォン */
@media (max-width: 600px) {
  :root { --header-h: 60px; }

  .section { padding: 60px 0; }
  .section__header { margin-bottom: 40px; }

  .hero__btns { flex-direction: column; align-items: center; }
  .btn { width: 220px; text-align: center; }

  .about__photo img { height: 300px; }

  .schedule__grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .schedule__card { padding: 14px 6px; }
  .schedule__day { font-size: 1.1rem; }
  .schedule__info { font-size: 0.7rem; }

  .gallery__grid {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }

  .links__card { padding: 18px; gap: 14px; }
  .links__card-icon { width: 44px; height: 44px; border-radius: 10px; }

  .footer__nav { gap: 16px; }
  .footer__nav a { font-size: 0.75rem; }
}