:root {
  color-scheme: light;
  --background: #fff;
  --text: #20242c;
  --muted: #606774;
  --border: #e4e6e9;
  --surface: #f7f8fa;
  --focus: #1466d7;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 32px; }
body { margin: 0; color: var(--text); background: var(--background); font-family: var(--font); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 5px; }
a:focus-visible { outline: 3px solid var(--focus); outline-offset: 4px; border-radius: 4px; }
.page { width: min(1160px, calc(100% - 96px)); margin: 0 auto; min-height: 100svh; display: flex; flex-direction: column; }
.site-header { min-height: 106px; display: flex; align-items: center; }
.social-links { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; }
.social-link { display: inline-flex; align-items: center; justify-content: center; flex: 0 0 44px; width: 44px; height: 44px; border-radius: 8px; color: #ffffff; background: #000000; text-decoration: none; }
.social-link img { display: block; object-fit: contain; }
.social-link:focus-visible { border-radius: 8px; }
main { padding-top: 24px; padding-bottom: 104px; }
.collection { min-width: 0; }
.collection + .collection { margin-top: 84px; }
.collection:focus { outline: none; }
.section-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; padding-bottom: 25px; border-bottom: 1px solid #d9dde2; margin-bottom: 38px; }
.section-heading h1, .section-heading h2 { margin: 0; font-size: 1.375rem; line-height: 1.5; font-weight: 600; letter-spacing: .02em; }
.section-heading p { margin: 0; font-size: .875rem; line-height: 1.5; color: var(--muted); letter-spacing: .005em; }
.product-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px 24px; }
.product-card { min-width: 0; display: flex; flex-direction: column; }
.product-mail { --brand: #173e45; --brand-ink: #ffffff; }
.product-rename { --brand: #37c39c; --brand-ink: #12352b; }
.product-youtube { --brand: #d91d2f; --brand-ink: #ffffff; }
.product-mona { --brand: #edc256; --brand-ink: #39290b; }
.product-popchat { --brand: #9146ff; --brand-ink: #ffffff; }
.product-visual { width: 100%; aspect-ratio: 1.61; display: flex; align-items: center; justify-content: center; border-radius: 20px; background: var(--surface); overflow: hidden; margin-bottom: 26px; }
.product-icon { display: block; width: 82px; height: 82px; max-width: 50%; object-fit: contain; border-radius: 19px; transition: transform 380ms cubic-bezier(.2, .7, .2, 1); }
.product-copy { min-width: 0; padding-inline: 2px; }
.product-copy h2, .product-copy h3 { margin: 0; font-size: 1.25rem; font-weight: 600; line-height: 1.5; letter-spacing: -.018em; overflow-wrap: anywhere; }
.product-subtitle { display: block; margin-top: 3px; color: var(--muted); font-size: .875rem; font-weight: 400; letter-spacing: .015em; }
.product-description { color: var(--muted); font-size: 1rem; font-weight: 400; line-height: 1.9; margin: 17px 0 20px; overflow-wrap: anywhere; }
.product-meta { color: var(--muted); font-size: .8125rem; line-height: 1.7; margin: -8px 0 20px; overflow-wrap: anywhere; }
/* Every outbound link remains identifiable without hover. Its own accent panel
   sweeps from left to right on hover or keyboard focus. */
.store-link { position: relative; isolation: isolate; overflow: hidden; width: fit-content; max-width: 100%; margin-top: auto; display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 12px 16px; border: 1px solid var(--border); border-radius: 8px; color: var(--text); font-size: .875rem; line-height: 1.6; font-weight: 500; text-align: center; text-decoration: none; transition: border-color 280ms ease; overflow-wrap: anywhere; }
.link-label { position: relative; min-width: 0; text-decoration: none; }
.link-fill { position: absolute; z-index: 1; inset: 0; display: grid; place-items: center; padding: 12px 16px; color: var(--brand-ink); background: var(--brand); text-decoration: none; text-underline-offset: 5px; text-decoration-thickness: 1px; transition: clip-path 380ms cubic-bezier(.22, .68, 0, 1); }
@supports (clip-path: inset(0 100% 0 0)) {
  .link-fill { clip-path: inset(0 100% 0 0); }
}
.store-link:focus-visible { border-color: var(--brand); }
.store-link:focus-visible .link-fill { clip-path: inset(0); }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.site-footer { padding: 26px 0 56px; margin-top: auto; border-top: 1px solid #d9dde2; color: var(--muted); }
.site-footer small { font-size: .75rem; line-height: 1.5; letter-spacing: .005em; }
.skip-link { position: fixed; top: 12px; left: 12px; z-index: 5; padding: 12px 16px; border: 1px solid var(--border); background: var(--background); border-radius: 8px; transform: translateY(-150%); }
.skip-link:focus { transform: none; }
@media (hover: hover) {
  .store-link:hover { border-color: var(--brand); }
  .store-link:hover .link-fill { clip-path: inset(0); }
}
@media (hover: none), (pointer: coarse) {
  .store-link { border-color: var(--brand); }
  .store-link .link-fill { clip-path: inset(0); }
}
@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .product-card:hover .product-icon { transform: translateY(-5px) rotate(-3deg); }
  .product-card:focus-within .product-icon { transform: translateY(-5px); }
}
@media (prefers-reduced-motion: no-preference) {
  .product-card { animation: arrive 560ms cubic-bezier(.2, .7, .2, 1) both; }
  .product-card:nth-child(2) { animation-delay: 75ms; }
  .product-card:nth-child(3) { animation-delay: 150ms; }
  .product-card:nth-child(4) { animation-delay: 225ms; }
  @keyframes arrive { from { opacity: 0; transform: translateY(9px); } to { opacity: 1; transform: translateY(0); } }
}
@media (max-width: 1090px) {
  .page { width: calc(100% - 64px); }
  .product-icon { width: 72px; height: 72px; }
  .product-copy h2, .product-copy h3 { font-size: 1.125rem; }
}
@media (max-width: 767px) {
  .page { width: calc(100% - 40px); }
  .site-header { min-height: 84px; }
  main { padding-top: 20px; padding-bottom: 64px; }
  .collection + .collection { margin-top: 64px; }
  .section-heading { margin-bottom: 24px; padding-bottom: 18px; }
  .section-heading h1, .section-heading h2 { font-size: 1.125rem; }
  .section-heading p { font-size: .75rem; }
  .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px 18px; }
  .product-visual { margin-bottom: 18px; aspect-ratio: 1.35; border-radius: 14px; }
  .product-icon { width: 60px; height: 60px; border-radius: 14px; }
  .product-copy h2, .product-copy h3 { font-size: 1rem; line-height: 1.5; }
  .product-subtitle { font-size: .8125rem; }
  .product-description { font-size: .875rem; line-height: 1.8; margin-top: 12px; margin-bottom: 16px; }
  .product-meta { font-size: .75rem; margin-top: -4px; margin-bottom: 16px; }
  .store-link { width: 100%; min-height: 48px; padding: 11px 8px; font-size: .875rem; }
  .link-fill { padding: 11px 8px; }
  .site-footer { padding-bottom: 36px; }
}
@media (max-width: 480px) {
  .section-heading p { display: none; }
}
@media (max-width: 360px) {
  .page { width: calc(100% - 32px); }
  .product-grid { column-gap: 14px; }
  .product-icon { width: 54px; height: 54px; border-radius: 12px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}