/* =========================================
   Tokens — DESIGN.md の正本をここに定義
   ========================================= */
:root {
  /* Background */
  --color-bg:         #ffffff;
  --color-bg-overlay: rgba(255, 255, 255, 0.96);
  --color-bg-card:    #f5f5f5;

  /* Text */
  --color-text-primary:   #1a1a1a;
  --color-text-secondary: #555555;
  --color-text-muted:     #999999;

  /* Border */
  --color-border:       #cccccc;
  --color-border-light: #e5e5e5;

  /* Accent */
  --color-accent: #1a1a1a;

  /* Overlay (画像の上に重ねるオーバーレイは白背景でも暗い方が視認性が高いため別軸で保持) */
  --color-image-overlay:    rgba(0, 0, 0, 0.4);
  --color-image-overlay-fg: #ffffff;

  /* Font family */
  --font-serif-ja: 'Noto Serif JP', serif;
  --font-sans-en:  'Inter', sans-serif;

  /* Font size */
  --text-xs:  12px;
  --text-sm:  13px;
  --text-base: 16px;
  --text-lg:  20px;
  --text-xl:  32px;
  --text-2xl: 56px;

  /* Line height */
  --leading-tight: 1.4;
  --leading-base:  1.7;
  --leading-loose: 2.0;

  /* Letter spacing */
  --tracking-normal:  0;
  --tracking-wide:    0.05em;
  --tracking-wider:   0.15em;
  --tracking-widest:  0.2em;

  /* Spacing */
  --space-xs:  8px;
  --space-sm:  16px;
  --space-md:  24px;
  --space-lg:  40px;
  --space-xl:  80px;
  --space-2xl: 120px;

  /* Radius */
  --radius-sm:   4px;
  --radius-none: 0;
}

/* =========================================
   Reset / base
   ========================================= */
*,
*::before,
*::after { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--color-bg);
  color: var(--color-text-primary);
  font-family: var(--font-sans-en), var(--font-serif-ja);
  font-size: var(--text-base);
  line-height: var(--leading-base);
  -webkit-font-smoothing: antialiased;
}

body.is-modal-open { overflow: hidden; }

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

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

hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 0;
}

h1, h2, h3, p { margin: 0; }

ul { list-style: none; margin: 0; padding: 0; }

button {
  background: none;
  border: none;
  color: inherit;
  font: inherit;
  cursor: pointer;
  padding: 0;
}

/* =========================================
   Hero
   ========================================= */
.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 480px;
  background-color: var(--color-bg);
  background-image: url('images/hero2.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  text-align: left;
  overflow: hidden;
}

.hero__inner {
  position: relative;
  z-index: 1;
  padding: 0 var(--space-lg);
  max-width: 640px;
  color: var(--color-text-primary);
}

/* ブランドロゴ — 左上に絶対配置。元SVGは黒パスなので色指定なしでそのまま表示 */
.hero__logo {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  z-index: 2;
  height: 40px;
  width: auto;
  pointer-events: none;
}

.hero__copy {
  font-family: var(--font-serif-ja);
  font-size: var(--text-xl);
  font-weight: 500;
  line-height: var(--leading-tight);
  color: var(--color-text-primary);
  margin-bottom: var(--space-xs);
}

.hero__tagline {
  font-family: var(--font-sans-en);
  font-size: var(--text-lg);
  letter-spacing: var(--tracking-widest);
  color: var(--color-text-primary);
}

.hero__scroll {
  position: absolute;
  left: 50%;
  bottom: var(--space-md);
  transform: translateX(-50%);
  z-index: 1;
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  animation: scrollFade 2.4s ease-in-out infinite;
}

@keyframes scrollFade {
  0%, 100% { opacity: 0.3; transform: translate(-50%, 0); }
  50%      { opacity: 1;   transform: translate(-50%, 6px); }
}

/* =========================================
   Statement
   ========================================= */
.statement {
  padding: var(--space-xl) var(--space-md);
  color: var(--color-text-primary);
}

.statement__cols {
  max-width: 680px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

.statement__block {
  font-family: var(--font-serif-ja);
  font-size: var(--text-base);
  line-height: var(--leading-loose);
  color: var(--color-text-primary);
}

.statement__block--en {
  font-family: var(--font-sans-en);
}

.statement__block p + p {
  margin-top: var(--space-md);
}

.statement__tagline {
  text-align: center;
  margin: var(--space-xl) auto 0;
  font-family: var(--font-serif-ja);
  font-size: var(--text-lg);
  letter-spacing: var(--tracking-wide);
  color: var(--color-text-primary);
  line-height: var(--leading-loose);
}

.statement__tagline span {
  font-family: var(--font-sans-en);
  font-size: var(--text-sm);
  letter-spacing: var(--tracking-widest);
  color: var(--color-text-secondary);
}

/* =========================================
   Gallery
   ========================================= */
.gallery {
  padding: var(--space-xl) var(--space-md);
}

.gallery__title {
  font-family: var(--font-sans-en);
  font-size: var(--text-sm);
  font-weight: 400;
  letter-spacing: var(--tracking-wider);
  color: var(--color-text-secondary);
  text-align: left;
  margin-bottom: var(--space-lg);
  text-transform: uppercase;
}

.gallery__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-xs);
}

.gallery__card {
  position: relative;
  cursor: pointer;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  aspect-ratio: 1 / 1;
  background: var(--color-bg);
}

.gallery__card img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: var(--space-sm);
  box-sizing: border-box;
}

.gallery__overlay {
  position: absolute;
  inset: 0;
  background: var(--color-image-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.2s ease;
  color: var(--color-image-overlay-fg);
  font-family: var(--font-serif-ja);
  font-size: var(--text-sm);
  text-align: center;
  padding: var(--space-sm);
}

.gallery__card:hover .gallery__overlay,
.gallery__card:focus-visible .gallery__overlay {
  opacity: 1;
}

/* =========================================
   Footer
   ========================================= */
.footer {
  border-top: 0.5px solid var(--color-border);
  padding: var(--space-lg) var(--space-md);
  text-align: center;
  background: var(--color-bg);
}

.footer__brand {
  font-family: var(--font-serif-ja);
  font-size: var(--text-sm);
  letter-spacing: var(--tracking-wide);
  color: var(--color-text-primary);
  margin-bottom: var(--space-md);
}

.footer__sns {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.footer__sns a {
  display: inline-flex;
  color: var(--color-text-secondary);
  transition: color 0.2s ease;
}

.footer__sns a:hover { color: var(--color-text-primary); }

.footer__domain,
.footer__copy {
  font-family: var(--font-sans-en);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.footer__domain { margin-bottom: var(--space-xs); }

/* =========================================
   Modal
   ========================================= */
.modal {
  position: fixed;
  inset: 0;
  background: var(--color-bg-overlay);
  display: none;
  z-index: 1000;
  overflow-y: auto;
}

.modal.is-open {
  display: block;
}

.modal__close {
  position: fixed;
  top: var(--space-md);
  right: var(--space-md);
  color: var(--color-text-secondary);
  font-size: var(--text-lg);
  z-index: 1001;
  transition: color 0.2s ease;
}

.modal__close:hover { color: var(--color-text-primary); }

.modal__container {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-xl) var(--space-md);
  min-height: 100%;
}

.modal__image-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal__image {
  max-width: 100%;
  max-height: 80vh;
  object-fit: contain;
}

.modal__info {
  color: var(--color-text-primary);
}

.modal__title {
  font-family: var(--font-serif-ja);
  font-size: var(--text-xl);
  font-weight: 500;
  line-height: var(--leading-tight);
  margin-bottom: var(--space-xs);
}

.modal__reading {
  font-family: var(--font-sans-en);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xs);
}

.modal__translation {
  font-family: var(--font-sans-en);
  font-size: var(--text-sm);
  font-style: italic;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}

.modal__sep {
  margin: var(--space-md) 0;
}

.modal__story {
  font-family: var(--font-serif-ja);
  font-size: var(--text-base);
  line-height: var(--leading-loose);
  color: var(--color-text-primary);
}

.modal__story-en {
  margin-top: var(--space-md);
  font-family: var(--font-sans-en);
  font-size: var(--text-base);
  line-height: var(--leading-loose);
  color: var(--color-text-secondary);
}

.modal__coming {
  font-family: var(--font-sans-en);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: var(--tracking-wide);
}

/* =========================================
   Responsive — Tablet
   ========================================= */
@media (min-width: 768px) {
  .hero__logo {
    height: 52px;
    top: var(--space-lg);
    left: var(--space-lg);
  }

  .statement__cols {
    max-width: 960px;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }

  .modal__container {
    flex-direction: row;
    align-items: flex-start;
    gap: var(--space-xl);
  }

  .modal__image-wrap {
    flex: 0 0 60%;
    max-width: 60vw;
    position: sticky;
    top: var(--space-xl);
  }

  .modal__info {
    flex: 1;
  }
}

/* =========================================
   Responsive — PC
   ========================================= */
@media (min-width: 1200px) {
  .hero__copy {
    font-size: var(--text-2xl);
  }

  .gallery {
    padding: var(--space-xl) var(--space-lg);
  }
}