/* YAMADA USAGI — mock LP styles */

:root {
  --bg: #f7f4ef;
  --text: #2c2a28;
  --accent: #6b5344;
  --accent-light: #8b7355;
  --accent-green: #5c6b5a;
  --border: rgba(107, 83, 68, 0.2);
  --font-serif: "Noto Serif JP", serif;
  --font-sans: "Noto Sans JP", sans-serif;
  --font-logo-ja: "Yuji Syuku", serif;
  --header-h: 3.5rem;
  --logo-ja-compact: 1.7rem;
  --logo-en-compact: 0.85rem;
  --logo-ja-expanded: calc(var(--logo-ja-compact) * 3);
  --logo-en-expanded: calc(var(--logo-en-compact) * 3);
  --header-transition: 0.4s ease;
  --hero-logo-scroll-on: 10rem;
  --hero-logo-scroll-off: 13.5rem;
  --max-width: 960px;
  --max-width-narrow: 640px;
  --gallery-slide-width: min(var(--max-width-narrow), calc(100vw - 2.5rem));
  --gallery-slide-gap: 1rem;
  --gallery-img-max: calc((var(--max-width) - 2rem) / 3);
  --profile-photo-max: 380px;
  --reveal-duration: 0.85s;
  --reveal-stagger: 0.18s;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 0;
}

html.is-compact-header {
  scroll-padding-top: var(--header-h);
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text);
  background-color: var(--bg);
  background-image:
    radial-gradient(ellipse 80% 50% at 10% 20%, rgba(139, 115, 85, 0.12), transparent),
    radial-gradient(ellipse 60% 40% at 90% 60%, rgba(92, 107, 90, 0.1), transparent),
    radial-gradient(ellipse 50% 30% at 50% 90%, rgba(107, 83, 68, 0.08), transparent);
}

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

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

a:hover {
  color: var(--accent-light);
  text-decoration: underline;
}

/* Header — large logo (in page flow) + compact bar (fixed on scroll) */
.site-header-hero {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 0.75rem 1rem;
  padding: 1rem 1.25rem 1.25rem;
  opacity: 1;
  visibility: visible;
  transition: opacity var(--header-transition), visibility var(--header-transition);
}

.site-header-hero.is-hidden {
  opacity: 0;
  visibility: hidden;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 90;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1rem;
  min-height: var(--header-h);
  padding: 0.75rem 1.25rem;
  background: rgba(247, 244, 239, 0.92);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(6px);
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
  transition:
    transform var(--header-transition),
    opacity var(--header-transition);
}

.site-header.is-visible {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.site-logo {
  display: inline-flex;
  flex-direction: column;
  gap: 0.1rem;
  font-family: var(--font-serif);
  line-height: 1.2;
  color: var(--text);
  text-decoration: none;
}

.site-logo--hero {
  gap: 0.35rem;
}

.site-logo-ja {
  font-family: var(--font-logo-ja);
  font-size: var(--logo-ja-compact);
  font-weight: 600;
  letter-spacing: 0.18em;
}

.site-logo--hero .site-logo-ja {
  font-size: var(--logo-ja-expanded);
}

.site-logo-en {
  font-family: var(--font-serif);
  font-size: var(--logo-en-compact);
  font-weight: 600;
  letter-spacing: 0.08em;
}

.site-logo--hero .site-logo-en {
  font-size: var(--logo-en-expanded);
}

@media (max-width: 768px) {
  .site-logo--hero .site-logo-ja {
    font-size: calc(var(--logo-ja-compact) * 2);
  }

  .site-logo--hero .site-logo-en {
    font-size: calc(var(--logo-en-compact) * 2);
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-header-hero,
  .site-header {
    transition: none;
  }
}

.site-logo:hover {
  color: var(--accent);
  text-decoration: none;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
}

.site-nav--hero {
  flex-wrap: nowrap;
  gap: 0.5rem 2rem;
  align-self: center;
  font-size: 1.125rem;
  letter-spacing: 0.14em;
}

.site-nav a {
  position: relative;
  display: inline-block;
  color: var(--text);
  text-decoration: none;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.2em;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.3s ease;
}

.site-nav a:hover {
  color: var(--accent);
  text-decoration: none;
}

.site-nav a:hover::after {
  transform: scaleX(1);
}

@media (prefers-reduced-motion: reduce) {
  .site-nav a::after {
    transition: none;
  }
}

/* Sections */
.section {
  position: relative;
  padding: 4rem 1.25rem;
}

.section::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.4;
  background: radial-gradient(circle at 20% 50%, rgba(139, 115, 85, 0.06) 0%, transparent 45%);
}

.section-inner {
  position: relative;
  max-width: var(--max-width);
  margin: 0 auto;
}

/* Section reveal — slide in from left (hero excluded) */
.reveal-item {
  opacity: 0;
  transform: translateX(-2rem);
  transition:
    opacity var(--reveal-duration) ease var(--reveal-delay, 0s),
    transform var(--reveal-duration) ease var(--reveal-delay, 0s);
}

.section.is-visible .reveal-item {
  opacity: 1;
  transform: translateX(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal-item {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

#live .section-inner {
  max-width: var(--max-width-narrow);
}

.section h2 {
  margin: 0 0 2rem;
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-align: center;
  color: var(--accent);
}

.section-note {
  margin: -1rem 0 1.5rem;
  font-size: 0.875rem;
  text-align: center;
  color: var(--accent-light);
}

/* Hero */
.section-hero {
  padding: 0;
}

.section-hero::before {
  display: none;
}

.hero-media {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  max-height: 70vh;
  background: linear-gradient(145deg, #3d3834 0%, #5c5348 50%, #6b5344 100%);
  overflow: hidden;
}

.hero-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-fallback {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  padding: 1.5rem;
  text-align: center;
  font-size: 0.9rem;
  color: rgba(247, 244, 239, 0.9);
  background: rgba(44, 42, 40, 0.5);
}

.hero-fallback[hidden] {
  display: none;
}

/* Live */
.live-notice {
  margin: 0;
  line-height: 1.75;
  text-align: center;
}

.live-notice a {
  font-weight: 500;
  letter-spacing: 0.08em;
}

.live-sns {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem 1.5rem;
  list-style: none;
  margin: 1.25rem 0 0;
  padding: 0;
}

/* Profile */
.profile-layout {
  display: grid;
  grid-template-columns: var(--profile-photo-max) 1fr;
  gap: 2.5rem;
  align-items: start;
}

.profile-photo {
  width: 100%;
  max-width: var(--profile-photo-max);
}

.profile-photo img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--border);
  background: linear-gradient(160deg, rgba(139, 115, 85, 0.35), rgba(92, 107, 90, 0.25));
  filter: contrast(0.95) saturate(0.9);
}

.profile-content {
  min-width: 0;
}

.profile-content p {
  margin: 0 0 1.25rem;
}

.profile-sns {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  list-style: none;
  margin: 2rem 0 0;
  padding: 1.25rem 0 0;
  border-top: 1px solid var(--border);
}

.profile-sns-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

.profile-sns-link:hover {
  color: var(--accent-light);
}

.profile-sns-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}

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

/* Gallery — carousel (640px center + side peek, loop) */
.gallery-carousel {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  overflow: hidden;
}

.gallery-viewport {
  overflow: hidden;
  width: var(--gallery-slide-width);
  max-width: 100%;
  margin: 0 auto;
  min-height: calc(var(--gallery-img-max) * 0.75 * 2 + var(--gallery-slide-gap));
  flex-shrink: 0;
}

.gallery-track {
  display: flex;
  gap: var(--gallery-slide-gap);
  transition: transform 0.4s ease;
}

.gallery-page {
  flex: 0 0 var(--gallery-img-max);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--gallery-slide-gap);
  opacity: 0.55;
}

.gallery-page.is-active {
  opacity: 1;
}

.gallery-thumb {
  display: block;
  width: var(--gallery-img-max);
  max-width: 100%;
  padding: 0;
  border: none;
  background: none;
  cursor: zoom-in;
}

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

.gallery-page img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: linear-gradient(160deg, rgba(139, 115, 85, 0.35), rgba(92, 107, 90, 0.25));
  border: 1px solid var(--border);
  filter: contrast(0.95) saturate(0.9);
}

.gallery-pager {
  display: flex;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  width: var(--gallery-slide-width);
  max-width: 100%;
  margin-top: 2rem;
}

.gallery-prev,
.gallery-next {
  padding: 0.25rem 0.75rem;
  border: none;
  background: transparent;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  line-height: 1;
  color: var(--text);
  cursor: pointer;
}

.gallery-prev:hover,
.gallery-next:hover {
  color: var(--accent);
}

.gallery-indicators {
  display: flex;
  flex: 1;
  max-width: 12rem;
  gap: 0.5rem;
  align-items: center;
}

.gallery-indicator {
  position: relative;
  flex: 1;
  height: 2rem;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
}

.gallery-indicator::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  height: 2px;
  background: var(--border);
  transition: height 0.2s ease, background 0.2s ease;
}

.gallery-indicator.is-active::before {
  height: 3px;
  background: var(--accent);
}

.gallery-prev:focus-visible,
.gallery-next:focus-visible,
.gallery-indicator:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  .gallery-track {
    transition: none;
  }

  .gallery-indicator::before {
    transition: none;
  }
}

.gallery-lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
}

.gallery-lightbox[hidden] {
  display: none;
}

.gallery-lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(44, 42, 40, 0.75);
  cursor: pointer;
}

.gallery-lightbox-dialog {
  position: relative;
  z-index: 1;
  width: min(90vw, 960px);
}

.gallery-lightbox-close {
  position: absolute;
  top: -2.5rem;
  right: 0;
  padding: 0.25rem 0.5rem;
  border: none;
  background: transparent;
  color: #f7f4ef;
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
}

.gallery-lightbox-close:hover {
  opacity: 0.8;
}

.gallery-lightbox-img {
  display: block;
  max-width: 90vw;
  max-height: 85vh;
  width: auto;
  height: auto;
  margin: 0 auto;
  object-fit: contain;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.35);
}

/* Responsive — tablet & mobile (PC layout unchanged above 960px) */
@media (max-width: 960px) {
  :root {
    --profile-photo-max: 280px;
  }

  .section {
    padding: 3.5rem 1.25rem;
  }

  .site-header-hero {
    align-items: center;
  }

  .site-nav--hero {
    font-size: 0.9375rem;
    gap: 1rem 1.25rem;
    letter-spacing: 0.1em;
  }

  .profile-layout {
    gap: 1.75rem;
  }
}

@media (max-width: 640px) {
  :root {
    --gallery-img-max: min(calc((var(--max-width) - 2rem) / 3), calc(100vw - 4rem));
    --gallery-slide-gap: 0.75rem;
  }

  .section {
    padding: 2.75rem 1rem;
  }

  .section h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
  }

  .section-note {
    font-size: 0.8125rem;
  }

  .site-header-hero {
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
  }

  .site-logo--hero {
    align-items: center;
  }

  .site-nav--hero {
    font-size: 0.75rem;
    gap: 0.5rem 0.65rem;
    letter-spacing: 0.08em;
    align-self: center;
    justify-content: center;
  }

  .profile-layout {
    grid-template-columns: 1fr;
    justify-items: center;
    gap: 1.5rem;
  }

  .profile-photo {
    max-width: min(100%, 320px);
  }

  .profile-content {
    width: 100%;
    text-align: left;
  }

  .profile-content p {
    margin-bottom: 1rem;
  }

  .profile-sns {
    justify-content: center;
  }

  .gallery-pager {
    margin-top: 1.5rem;
  }

  .gallery-prev,
  .gallery-next {
    min-width: 2.5rem;
  }

  .gallery-lightbox {
    padding: 0.75rem;
  }

  .gallery-lightbox-img {
    max-height: 80vh;
  }

  .gallery-lightbox-close {
    top: 0.5rem;
    right: 0.5rem;
    color: #f7f4ef;
  }
}

@media (max-width: 380px) {
  .site-nav--hero {
    font-size: 0.6875rem;
    gap: 0.4rem 0.5rem;
  }
}

/* Footer */
.site-footer {
  padding: 2rem 1.25rem;
  text-align: center;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--accent-light);
  border-top: 1px solid var(--border);
}

.site-footer p {
  margin: 0;
}