/* nobuhiko のプロダクト 共通のデザイン(2026-10-19〜)
   一覧(ルート)と各プロダクトの紹介ページで同じ部品を使う。プロダクトごとに変えるのは --accent と、明るい/暗い の地だけ。
   参考にしたテイスト: indieappslab.github.io(特大の見出し、ガラスのカード、傾けた端末、1 画面 1 メッセージ) */

:root {
  --bg: #121212;
  --bg-glow-1: rgba(217, 108, 61, .22);
  --bg-glow-2: rgba(30, 127, 168, .18);
  --ink: #F5F1EA;
  --mute: #B4ACA2;
  --faint: #7D766E;
  --glass: rgba(255, 255, 255, .06);
  --glass-line: rgba(255, 255, 255, .12);
  --nav: rgba(18, 18, 18, .72);
  --accent: #D96C3D;
  --accent-ink: #fff;
  --radius: 28px;
  --max: 1160px;
  --font: "Inter", "Noto Sans JP", "Hiragino Sans", -apple-system, sans-serif;
  color-scheme: dark;
}

/* 明るい地(プロダクトの紹介ページ) */
.light {
  --bg: #FBF6EE;
  --bg-glow-1: rgba(217, 108, 61, .16);
  --bg-glow-2: rgba(232, 170, 90, .14);
  --ink: #2B221B;
  --mute: #6B5B4D;
  --faint: #9A8B7D;
  --glass: rgba(255, 255, 255, .72);
  --glass-line: rgba(58, 46, 36, .10);
  --nav: rgba(251, 246, 238, .78);
  color-scheme: light;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(1200px 700px at 85% -10%, var(--bg-glow-1), transparent 60%),
    radial-gradient(900px 600px at -10% 30%, var(--bg-glow-2), transparent 60%),
    var(--bg);
  background-attachment: fixed;
  color: var(--ink);
  font-family: var(--font);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img { max-width: 100%; display: block; }

/* 上の帯 */
.nav {
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: saturate(160%) blur(18px); -webkit-backdrop-filter: saturate(160%) blur(18px);
  background: var(--nav);
  border-bottom: 1px solid var(--glass-line);
}
.nav-in { max-width: var(--max); margin: 0 auto; padding: 14px 24px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { white-space: nowrap; display: flex; align-items: center; gap: 10px; font-weight: 700; text-decoration: none; letter-spacing: -.01em; }
.brand .dot { width: 12px; height: 12px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 12px var(--accent); }
.brand img { width: 28px; height: 28px; border-radius: 8px; }
.pill { display: flex; gap: 4px; padding: 4px; border: 1px solid var(--glass-line); border-radius: 999px; background: var(--glass); }
.pill a { white-space: nowrap; text-decoration: none; font-size: 14px; padding: 6px 14px; border-radius: 999px; color: var(--mute); }
.pill a:hover { color: var(--ink); background: var(--glass); }
.pill .theme { font: inherit; font-size: 15px; line-height: 1; padding: 6px 12px; border: 0; border-radius: 999px; background: none; color: var(--mute); cursor: pointer; }
.pill .theme:hover { color: var(--ink); background: var(--glass); }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* 最初の画面 */
.hero { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; min-height: calc(100vh - 64px); padding: 64px 0 48px; }
.eyebrow { font-size: 13px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--accent); margin: 0 0 18px; }
.display { font-size: clamp(40px, 7vw, 88px); line-height: 1.04; font-weight: 800; letter-spacing: -.035em; margin: 0; }
.display .soft { color: var(--faint); }
.lead { font-size: clamp(16px, 1.6vw, 19px); color: var(--mute); max-width: 34em; margin: 24px 0 0; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; align-items: center; }
.btn { display: inline-flex; align-items: center; gap: 8px; text-decoration: none; font-weight: 700; font-size: 15px; padding: 13px 24px; border-radius: 999px; background: var(--accent); color: var(--accent-ink); transition: transform .2s ease, box-shadow .2s ease; box-shadow: 0 8px 24px -8px var(--accent); }
.btn:hover { transform: translateY(-1px); }
.btn.ghost { background: transparent; color: var(--ink); border: 1px solid var(--glass-line); box-shadow: none; }
.note { font-size: 13px; color: var(--faint); margin: 14px 0 0; }

/* 端末 */
.phone { position: relative; width: 100%; max-width: 300px; aspect-ratio: 1320 / 2868; border-radius: 46px; padding: 10px; background: linear-gradient(145deg, #3a3a3c, #111); box-shadow: 0 40px 80px -30px rgba(0, 0, 0, .55), inset 0 0 0 1px rgba(255, 255, 255, .08); }
.phone img, .phone video { width: 100%; height: 100%; object-fit: cover; border-radius: 37px; display: block; }
.stage { position: relative; height: min(640px, 80vh); perspective: 1600px; }
.stage .phone { position: absolute; }
.stage .back { right: 4%; top: 6%; width: 52%; transform: rotateY(-18deg) rotateZ(4deg); opacity: .92; }
.stage .front { left: 6%; top: 0; width: 58%; transform: rotateY(14deg) rotateZ(-3deg); }

/* 1 画面 1 メッセージ */
.feature { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; padding: 120px 0; }
.feature.flip .text { order: 2; }
.feature h2 { font-size: clamp(32px, 4.6vw, 60px); line-height: 1.1; font-weight: 800; letter-spacing: -.03em; margin: 0; }
.feature p { font-size: 17px; color: var(--mute); margin: 20px 0 0; max-width: 30em; }
.feature .visual { display: flex; justify-content: center; }
.feature .phone { max-width: 320px; }
.tag { display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .08em; padding: 4px 12px; border-radius: 999px; border: 1px solid var(--glass-line); color: var(--accent); background: var(--glass); margin-bottom: 18px; }

/* 見出しだけの区切り */
.statement { text-align: center; padding: 120px 0 40px; }
.statement h2 { font-size: clamp(32px, 5vw, 64px); font-weight: 800; letter-spacing: -.03em; line-height: 1.1; margin: 0; }
.statement p { color: var(--mute); font-size: 17px; margin: 16px auto 0; max-width: 34em; }

/* ガラスのカード */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
.glass { background: var(--glass); border: 1px solid var(--glass-line); border-radius: var(--radius); padding: 28px; backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); }
.glass h3 { margin: 0 0 8px; font-size: 18px; letter-spacing: -.01em; }
.glass p { margin: 0; color: var(--mute); font-size: 15px; }
.glass p + p { margin-top: 10px; }

/* 製品のカード(一覧) */
.products { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.product { display: grid; grid-template-columns: 200px 1fr; gap: 24px; align-items: center; padding: 20px; }
.product .shot { border-radius: 26px; overflow: hidden; aspect-ratio: 9 / 19.5; background: rgba(255, 255, 255, .04); display: flex; align-items: center; justify-content: center; }
.product .shot img { width: 100%; height: 100%; object-fit: contain; }
.product .shot.wide img { object-fit: cover; object-position: left center; }
.product h3 { font-size: 30px; font-weight: 800; letter-spacing: -.02em; margin: 6px 0 8px; }
.product .kind { font-size: 11px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; padding: 3px 10px; border-radius: 999px; border: 1px solid currentColor; display: inline-block; }
.product .row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-top: 16px; }
.product .btn { padding: 10px 18px; font-size: 14px; }
.product .link { font-size: 14px; color: var(--mute); text-decoration: none; }
.product .link:hover { color: var(--ink); }
.product.wide { grid-column: 1 / -1; grid-template-columns: 1.15fr 1fr; gap: 32px; }

/* よくある質問 */
.faq details { border-bottom: 1px solid var(--glass-line); padding: 18px 4px; }
.faq summary { cursor: pointer; font-weight: 700; font-size: 17px; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--faint); font-weight: 400; font-size: 22px; line-height: 1; transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { color: var(--mute); margin: 10px 0 0; }

.chips { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-top: 28px; }
.chips span { padding: 10px 18px; border-radius: 999px; border: 1px solid var(--glass-line); background: var(--glass); font-size: 15px; }

section.block { padding: 80px 0; }
.block > h2, .wrap > h2.sec { font-size: clamp(28px, 3.6vw, 44px); font-weight: 800; letter-spacing: -.03em; margin: 0 0 28px; }

footer.site { border-top: 1px solid var(--glass-line); margin-top: 80px; padding: 40px 0 56px; color: var(--faint); font-size: 14px; }
footer.site .wrap { display: flex; flex-wrap: wrap; gap: 12px 24px; justify-content: space-between; }
footer.site a { color: var(--mute); text-decoration: none; }
footer.site a:hover { color: var(--ink); }

/* スクロールで出てくる */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .9s ease, transform .9s cubic-bezier(.2, .7, .2, 1); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

@media (max-width: 900px) {
  .hero, .feature { grid-template-columns: 1fr; gap: 40px; }
  .hero { min-height: auto; padding: 40px 0 24px; }
  .feature { padding: 72px 0; }
  .feature.flip .text { order: 0; }
  .stage { height: 520px; }
  .products { grid-template-columns: 1fr; }
  .pill a.opt { display: none; }
}
@media (max-width: 560px) {
  .display { font-size: clamp(32px, 9vw, 44px); }
  .pill a { padding: 6px 10px; font-size: 13px; }
  .product.wide { grid-template-columns: 1fr; }
  .wrap, .nav-in { padding-left: 16px; padding-right: 16px; }
  .product { grid-template-columns: 1fr; }
  .product .shot { width: 62%; max-width: 240px; margin: 0 auto; }
  .product .shot.wide { width: 100%; max-width: none; }
  .stage { height: 440px; }
  .glass { padding: 22px; }
}

/* なにを、かさねる?(使い方のタイル) */
.use-grid { grid-template-columns: repeat(3, 1fr); }
.glass.use { padding: 12px; margin: 0; }
.glass.use img { width: 100%; border-radius: 20px; aspect-ratio: 600 / 760; object-fit: cover; }
.glass.use figcaption { padding: 14px 8px 6px; }
@media (max-width: 900px) { .use-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .use-grid { grid-template-columns: 1fr 1fr; gap: 10px; } .glass.use { padding: 8px; } .glass.use p { font-size: 13px; } }