:root {
  color-scheme: dark;
  --page: #0f1115;
  --paper: #151922;
  --paper-soft: #11141b;
  --line: rgba(232, 236, 241, 0.14);
  --ink: #eceff3;
  --muted: #9aa4b2;
  --quiet: #c4cbd4;
  --accent: #d6c08b;
  --color-border: var(--line);
  --color-text: var(--ink);
  --color-sub: var(--muted);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font-family: "Yu Gothic", "YuGothic", "Hiragino Sans", "Meiryo", system-ui, sans-serif;
  line-height: 1.8;
}

a {
  color: inherit;
  text-underline-offset: 0.22em;
}

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

.container {
  width: min(1080px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  border-bottom: 1px solid var(--line);
}

.header-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 22px;
  color: var(--muted);
  font-size: 0.86rem;
}

.site-nav a {
  text-decoration: none;
}

.hero,
.page-head,
.app-detail-head {
  padding: 88px 0 72px;
  border-bottom: 1px solid var(--line);
}

.hero-inner {
  max-width: 760px;
}

.eyebrow,
.app-date,
.status,
.detail-label,
.update-date {
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

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

h1 {
  margin-bottom: 24px;
  font-size: clamp(2.8rem, 9vw, 6.2rem);
  line-height: 1.02;
  letter-spacing: 0;
}

.intentional-lines span {
  display: inline;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(1.4rem, 3vw, 2.4rem);
  line-height: 1.35;
}

h3 {
  margin-bottom: 12px;
  font-size: 1.12rem;
}

.hero-lead,
.app-lead {
  color: var(--quiet);
  font-size: clamp(1.3rem, 3vw, 2.1rem);
  font-weight: 700;
  line-height: 1.55;
}

.hero-copy,
.note-section p,
.prose p,
.detail-body,
.quiet-card p,
.list-item p,
.update-item p {
  color: var(--muted);
}

.section,
.app-detail-section {
  padding: 72px 0;
  border-bottom: 1px solid var(--line);
}

.section-topless {
  border-top: 0;
}

.section-head {
  margin-bottom: 24px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.quiet-card,
.list-item,
.update-item {
  display: block;
  min-width: 0;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.025);
  text-decoration: none;
}

.quiet-card:hover,
.list-item:hover {
  border-color: rgba(214, 192, 139, 0.5);
}

.split-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}

.item-list,
.update-list {
  display: grid;
  gap: 14px;
}

.list-item strong {
  display: block;
  margin: 6px 0;
  color: var(--ink);
  font-size: 1.08rem;
}

.detail-grid {
  display: grid;
  grid-template-columns: 170px minmax(0, 1fr);
  gap: 32px;
}

.feature-list {
  margin: 0;
  padding-left: 1.2em;
}

.button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin: 10px 10px 0 0;
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
}

.button-quiet {
  color: var(--accent);
}

.text-link {
  color: var(--accent);
  font-weight: 700;
}

.screenshot {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.site-footer {
  padding: 42px 0;
  color: var(--muted);
}

.footer-inner {
  display: grid;
  gap: 4px;
}

.footer-copy,
.footer-small {
  margin: 0;
}

.footer-copy {
  color: var(--quiet);
  font-weight: 700;
}

.footer-small {
  color: var(--muted);
  font-size: 0.88rem;
}

.footer-small a {
  text-decoration: none;
}

.footer-small a:hover {
  color: var(--accent);
}

.update-hero h1 {
  max-width: none;
  font-size: clamp(3rem, 8vw, 5.8rem);
  line-height: 1.04;
}

@media (max-width: 760px) {
  .header-inner {
    min-height: auto;
    padding: 20px 0;
    align-items: flex-start;
    flex-direction: column;
  }

  .hero,
  .page-head,
  .app-detail-head {
    padding: 56px 0;
  }

  .section,
  .app-detail-section {
    padding: 48px 0;
  }

  .card-grid,
  .split-list,
  .detail-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 420px) {
  .container {
    width: min(100% - 28px, 1080px);
  }

  .intentional-lines span {
    display: block;
  }

  .hero-lead.intentional-lines {
    font-size: clamp(1.34rem, 6.4vw, 1.62rem);
    line-height: 1.5;
  }

  .page-head h1.intentional-lines {
    font-size: clamp(3rem, 15vw, 4.35rem);
    line-height: 1.06;
  }
}