/* ===== TOKENS ===== */
:root {
  --font-display: 'Josefin Sans', sans-serif;
  --font-body: 'Noto Sans JP', sans-serif;

  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);

  --space-1: 0.25rem; --space-2: 0.5rem;  --space-3: 0.75rem;
  --space-4: 1rem;    --space-6: 1.5rem;  --space-8: 2rem;
  --space-10: 2.5rem; --space-12: 3rem;   --space-16: 4rem;
  --space-20: 5rem;

  --color-bg:        #F0F0F0;
  --color-surface:   #1f2430;
  --color-surface-2: #252a38;
  --color-border:    rgba(160, 174, 192, 0.15);
  --color-divider:   rgba(160, 174, 192, 0.10);

  --color-text:        #4E4242;
  --color-text-muted:  #8d99b0;
  --color-text-faint:  #4e5a70;

  --color-primary:       #4E4242;
  --color-link:          #b8a060;
  --color-primary-hover: #D3CC88;
  --color-lune:          #D3CC88;

  --radius-sm:   0.375rem;
  --radius-md:   0.5rem;
  --radius-lg:   0.75rem;
  --radius-xl:   1rem;
  --radius-full: 9999px;

  --transition: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  --fleur-panel-width: clamp(300px, 50vw, 400px);

  --header-height: 100px;
}

/* ===== BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
body {
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.7;
  overflow-x: clip;
}
a { color: var(--color-link); text-decoration: none; }
a:hover { color: var(--color-primary-hover); }
img { display: block; max-width: 100%; height: auto; }
::selection { background: rgba(184, 160, 96, 0.3); }
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ===== HEADER ===== */
.site-header {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 200;
  background: color-mix(in srgb, var(--color-bg) 30%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-text-muted);
  transition: transform var(--transition);
  will-change: transform;
  transform: translateZ(0);
}
.site-header.is-hidden {
  transform: translate3d(0, -100%, 0);
}
.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: var(--space-4) var(--space-8);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.header-logo {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -0.08em;
  color: var(--color-primary);
  text-decoration: none;
}
.header-logo:hover { color: var(--color-primary-hover); }

.header-nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
}
.header-nav a {
  font-size: var(--text-sm);
  font-weight: 400;
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
  text-decoration: none;
  position: relative;
  transition: color var(--transition);
}

.header-nav a::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0;
  width: 0; height: 1px;
  background: var(--color-primary);
  transition: width var(--transition);
}
.header-nav a:hover { color: var(--color-primary); }
.header-nav a:hover::after { width: 100%; }

/* ===== FOOTER ===== */
footer {
  background-color: #8d99b0;
  color: #F0F0F0;
   padding: 300px var(--space-8);
   text-align: left;
  margin-top: auto;
}
footer p {
  font-size: var(--text-xs);
  color: rgba(240, 240, 240, 0.8);
  margin: 0;
}
footer a {
  color: #D3CC88;
  text-decoration: none;
  transition: opacity 02.s ease;
}
footer a:hover {
  opacity: 0.8;
}
.footer-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-4);
  max-width: 960px;
  margin: 0 auto;
}
.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: var(--space-2);
}
.footer-links a {
  color: #F0F0F0;
  text-decoration: none;
  letter-spacing: 0.05em;
  font-size: var(--text-xs);
}
.footer-links a:hover {
  color: #D3CC88;
}

/* ===== HAMBURGER ===== */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius-sm);
}
.hamburger span {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--color-text-muted);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition), background var(--transition);
  transform-origin: center;
}
.hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }
.hamburger.open span { background: var(--color-primary); }

/* ===== MOBILE MENU ===== */
.mobile-menu {
  display: none;
  flex-direction: column;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  overflow: hidden;

  position: absolute;

  top: 100%;
  right: 0;

  width: 50%;

  border-bottom: none;
  border-left: none;

  margin-left: auto;

  max-height: 0;

  transition: max-height 0.6s ease-in-out;
}

.mobile-menu.open {
  max-height: 400px;
  border-bottom: 1px solid var(--color-border);
  border-left: 1px solid var(--color-border);
}

.mobile-menu a {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
  color: var(--color-text-muted);
  text-decoration: none;
  border-bottom: 1px solid var(--color-divider);
  letter-spacing: 0.05em;
}

.mobile-menu a:last-child {
  border-bottom: none;
}

.mobile-menu a:hover {
  color: var(--color-primary);
  background: rgba(184, 160, 96, 0.05);
}

/* ===== RIGHT FLEUR PANEL ===== */
.fleur-panel {
  position: fixed;
  top: 0; right: 0;
  width: var(--fleur-panel-width);
  height: 100dvh;
  pointer-events: none;
  overflow: visible;
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.fleur-stack {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: -60px;
  margin-right: -60px;
}
.fleur-img {
  width: clamp(200px, 40vw, 500px);
  height: clamp(200px, 40vw, 500px);
  object-fit: contain;
  opacity: 0.2;
  margin-bottom: -220px;
  flex-shrink: 0;
}

.fleur2-img {
  width: clamp(200px, 40vw, 500px);
  height: clamp(200px, 40vw, 500px);
  object-fit: contain;
  opacity: 0.2;
  margin-bottom: -220px;
  flex-shrink: 0;
  transform: rotate(90deg);
}

/* ===== MAIN CONTENT (index) ===== */
.main-content {
  margin-right: var(--fleur-panel-width);
  min-height: calc(100dvh - 65px);
  display: flex;
  flex-direction: column;
}

/* ===== HERO ===== */
.hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: var(--space-16) clamp(var(--space-8), 8vw, var(--space-20));
  position: relative;
}
.hero::before {
  content: '';
  position: absolute;
  top: 45%; left: 35%;
  transform: translate(-50%, -50%);
  width: min(50vw, 440px);
  height: min(50vw, 440px);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(184, 160, 96, 0.05) 0%, transparent 70%);
  pointer-events: none;
}
.hero-eyebrow {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-6);
}
.hero-title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 300;
  line-height: 1.15;
  letter-spacing: 0.02em;
  color: var(--color-text);
  margin-bottom: var(--space-6);
}
.hero-title em {
  font-style: italic;
  color: var(--color-primary);
}
.hero-sub {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 42ch;
  line-height: 1.85;
  font-weight: 300;
  margin-bottom: var(--space-12);
}

/* ===== NAV ICON GRID ===== */
.nav-icon-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-10);
  align-items: center;
  justify-items: center;
}

.nav-icon-link {
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  border-radius: 0;
  line-height: 0;
  transition: transform var(--transition);
  -webkit-tap-highlight-color: transparent;
  outline: none;
}
.nav-icon-link:hover {
  transform: translateY(-5px) scale(1.15);
}

.nav-icon-img {
  width: 200px;
  height: 200px;
  object-fit: contain;
  image-rendering: auto;
  user-select: none;
  -webkit-user-drag: none;
}

/* ===== 他ページ用 main ===== */
main {
  max-width: 960px;
  margin: 0 auto;

  padding-top: var(--header-height);

  padding-left: var(--space-6);
  padding-right: var(--space-6);
  padding-bottom: var(--space-10);
}

/* ===== SECTION===== */
.section-title {

  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-4);

  border-bottom: 1px solid var(--color-divider);
}
.section-explanation {
  font-size: var(--text-base);
  font-weight: 400;
  color: var(--color-text);
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-divider);
}

/* ===== PAGE HEADER ===== */

/* ===== APP LIST / CARD ===== */

.app-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-16);
  max-width: 680px;
  margin: 0 auto;
  margin-top: var(--space-8);
}

.app-card {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  background: var(--color-bg);
  border: 5px solid var(--color-text);
  border-radius: var(--radius-xl);
  padding: 80px var(--space-10);

  text-decoration: none;
  position: relative;

  transition: transform 0.2s ease, box-shadow 0.2s ease;

  box-shadow: 12px 12px 0 var(--color-lune);

  -webkit-tap-highlight-color: transparent;
  outline: none;
}

.app-card:hover {

  transform: translate(12px, 12px);
  box-shadow: 0 0 0 transparent;
}

.app-card-icon-wrapper {
  flex-shrink: 0;
  width: 150px;
  height: 150px;
  border-radius: 28px;
  overflow: hidden;

  display: flex;
  align-items: center;
  justify-content: center;

  border: 3px solid var(--color-text);
}

.app-card-icon {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.app-card-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.app-card-info h3 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  margin: 0;
}

.app-card-info p {
  font-size: var(--text-sm);
  color: var(--color-text);
  line-height: 1.6;
  margin: 0;
  max-width: 35ch;
}

.app-store-badge {
  display: inline-block;
  line-height: 0;
  flex-shrink: 0;
}

.app-store-badge img {
  display: block;
  width: 120px;
  height: auto;
  object-fit: contain;
}

/* ===== App Page ===== */

.app-detail-container {
  max-width: 760px;
  margin: 0 auto;

  padding-top: var(--header-height);
}

.app-detail-hero {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  margin-bottom: var(--space-16);
}

.app-detail-icon-wrapper {
  width: 140px;
  height: 140px;
  box-sizing: border-box;
  border-radius: 32px;
  border: 4px solid var(--color-text);
  box-shadow: 10px 10px 0 var(--color-lune);
  overflow: hidden;
  background: var(--color-bg);
 }
.app-detail-icon {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.app-detail-hero-text .app-store-badge {
  margin-top: var(--space-4);
}

.app-meta-section {
  margin-top: var(--space-16);
}

.app-screenshots-section {
  position: relative;
}
.app-screenshots-section::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: var(--space-4);
  width: 80px;
  pointer-events: none;
  background: linear-gradient(to right, transparent, var(--color-bg));
}

.screenshot-grid {
  display: flex;
  gap: var(--space-4);
  overflow-x: auto;
  padding: 0 80px var(--space-4) 0;
  margin-bottom: var(--space-16);
}
.screenshot-img {
  width: 200px;
  height: auto;
  border-radius: var(--radius-lg);
  border: 3px solid var(--color-text);
}

.app-info-list {
  display: grid;
  gap: var(--space-4);
  max-width: 560px;
  margin: 0;
}
.app-info-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-divider);
}
.app-info-item dt {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.app-info-item dd {
  margin: 0;
  font-weight: 500;
}

.policy-links-container {
  margin-top: var(--space-12);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-divider);
}
.policy-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.policy-links a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: underline;
}
.policy-links a:hover {
  color: var(--color-primary);
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-primary);
  color: #1a1e26;
  padding: 10px 24px;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.03em;
  transition: background var(--transition), transform var(--transition);
  border: none;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover {
  background: var(--color-primary-hover);
  color: #1a1e26;
  transform: translateY(-1px);
}
.btn.secondary {
  background: var(--color-surface-2);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn.secondary:hover {
  background: var(--color-surface);
  color: var(--color-text);
}
.link-list {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-top: var(--space-8);
}
.text-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-6);
  font-size: var(--text-sm);
  color: var(--color-primary);
  transition: color var(--transition);
}
.text-link:hover { color: var(--color-primary-hover); }

/* ===== INFO TABLE ===== */
.info-table { width: 100%; border-collapse: collapse; }
.info-table tr { border-bottom: 1px solid var(--color-divider); }
.info-table th {
  text-align: left;
  width: 180px;
  padding: var(--space-4) 0;
  font-weight: 500;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}
.info-table td {
  padding: var(--space-4) 0;
  font-size: var(--text-base);
  color: var(--color-primary);
}

/* ===== CONTACT FORM ===== */
.contact-form { max-width: 560px; }
.form-group { margin-bottom: var(--space-6); }
.form-group label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
  letter-spacing: 0.05em;
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  font-family: var(--font-body);
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--color-text-faint); }
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(184, 160, 96, 0.15);
}
.form-group textarea { min-height: 140px; resize: vertical; }

/* ===== LEGAL PAGES ===== */

/* ===== MOBILE ===== */
@media (max-width: 768px) {
  :root { --fleur-panel-width: 0px; }

  .header-nav { display: none; }
  .hamburger { display: flex; }
  .mobile-menu { display: flex; }

  .fleur-panel .fleur2-img:nth-child(4) {
    display: none;
  }
  .fleur-panel {
    position: fixed;
    top: -20px;
    left: unset;
    right: -110px;
    width: auto;
    height: auto;
    overflow: visible;
    z-index: 0;
    pointer-events: none;
  }

  .fleur-stack {
    flex-direction: column;
    flex-wrap: nowrap;
    justify-content: center;
    margin-top: 0;
    margin-right: 0;
  }

  .fleur-img,
  .fleur2-img {
    width: clamp(80px, 80vw, 500px);
    height: clamp(80px, 80vw, 500px);
    margin-bottom: -120px;
  }

.main-content {
  margin-right: 0;
  position: relative;
  z-index: 1;
}
  .hero {
    padding: var(--space-12) var(--space-6);
  }

  .nav-icon-grid {
    gap: var(--space-8);
  }
  .nav-icon-img {
    width: 150px;
    height: 150px;
  }
  .app-list {
    gap: var(--space-8);
    padding: 0 var(--space-2);
  }

  .app-card {

    padding: 150px var(--space-5);
    gap: var(--space-4);

    border-width: 3px;
    box-shadow: 8px 8px 0 var(--color-lune);
  }

  .app-card:hover {
    transform: translate(8px, 8px);
    box-shadow: 0 0 0 transparent;
  }

  .app-store-badge img {
    width: 168px;
    height: auto;
  }

  .app-card-icon-wrapper {
    width: 60px;
    height: 60px;
    border-radius: 20px;
    border-width: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin: 15px 5px;
  }

  .app-card-info h3 {
    font-size: var(--text-lg);
  }
  .app-card-info p {
    font-size: var(--text-xs);
  }

  .app-detail-hero {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-6);
  }

  .app-detail-icon-wrapper {
    width: 100px;
    height: 100px;
    border-width: 4px;
    box-shadow: 8px 8px 0 var(--color-lune);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
  }

  .screenshot-grid {
    gap: var(--space-3);
    padding-right: 48px;
  }
  .app-screenshots-section::after {
    width: 48px;
  }
  .screenshot-img {
    width: 150px;
  }

  .app-info-item {
    grid-template-columns: 1fr;
    gap: var(--space-1);
  }

  .policy-links {
    flex-direction: column;
    gap: var(--space-3);
  }

  .site-header {

    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    background: var(--color-bg) !important;
  }
  .link-list {
    flex-direction: column;
    align-items: stretch;
  }
  .link-list .btn { text-align: center; justify-content: center; }

  footer { padding: 150px var(--space-8); }

}

/* ===== SCROLL REVEAL ===== */
.reveal-ready [data-reveal] {
  opacity: 0;
  transform: translate3d(0, 24px, 0);
  transition:
    opacity 700ms cubic-bezier(0.16, 1, 0.3, 1),
    transform 700ms cubic-bezier(0.16, 1, 0.3, 1);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}

.reveal-ready [data-reveal].is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

.reveal-ready .app-card[data-reveal].is-visible:hover {
  transform: translate(10px, 10px);
}

@media (max-width: 768px) {
  .reveal-ready .app-card[data-reveal].is-visible:hover {
    transform: translate(8px, 8px);
  }
}

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