/* ============================================================
   AKILI — Official Site  |  design tokens
   情報集約ハブ。洗練 × 可読性 × レスポンシブ。
   テーマ: OS連動(ライト基調 / ダーク)。差し色は data-accent で切替。
   ============================================================ */

/* ---------- accent palettes (swap via <html data-accent>) ---------- */
:root                      { --accent: #e0a000; --on-accent: #241a00; } /* mustard (default) */
:root[data-accent="ochre"] { --accent: #b3800f; --on-accent: #ffffff; } /* 深オークル: 信頼×暖かみ */
:root[data-accent="teal"]  { --accent: #0f7b86; --on-accent: #ffffff; } /* 深ティール: 信頼の王道 */
:root[data-accent="cyan"]  { --accent: #13a8c7; --on-accent: #03303a; }
:root[data-accent="coral"] { --accent: #ec5a45; --on-accent: #2c0a05; }
:root[data-accent="violet"]{ --accent: #7a6cf0; --on-accent: #0e0a2a; }
:root[data-accent="green"] { --accent: #2fa96b; --on-accent: #04231a; }

/* ---------- LIGHT theme (base / OSデフォルト) ---------- */
:root {
  --bg:        #fbfaf8;
  --bg-soft:   #f3f1ec;
  --bg-card:   #ffffff;
  --line:      #e7e4dd;
  --line-soft: #efece6;
  --fg:        #191a1d;
  --fg-mut:    #565b66;
  --fg-dim:    #8b909b;
  --cover-grad: linear-gradient(135deg, #edeae3, #f7f6f2);
  --shadow: 0 1px 2px rgba(20,20,25,.04), 0 10px 30px rgba(20,20,25,.06);
  --accent-text: color-mix(in oklab, var(--accent) 74%, #000);
  --glow-a: color-mix(in oklab, var(--accent) 16%, transparent);
  --glow-b: color-mix(in oklab, var(--accent) 8%, transparent);

  --sans: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Noto Sans JP",
          "Yu Gothic", "Meiryo", system-ui, -apple-system, sans-serif;
  --mincho: "Hiragino Mincho ProN", "Yu Mincho", "YuMincho",
            "Shippori Mincho", serif;

  --maxw: 1120px;
  --radius: 14px;
  --radius-lg: 20px;
  --gap: clamp(1rem, 3vw, 2rem);
}

/* ---------- DARK theme (OSがダークのとき) ---------- */
@media (prefers-color-scheme: dark) {
  :root {
    --bg:        #0c0d10;
    --bg-soft:   #14161b;
    --bg-card:   #171a21;
    --line:      #262a33;
    --line-soft: #1e222a;
    --fg:        #eef0f4;
    --fg-mut:    #a3a9b6;
    --fg-dim:    #6f7684;
    --cover-grad: linear-gradient(135deg, #1b2030, #0f1220);
    --shadow: 0 10px 30px rgba(0,0,0,.35);
    --accent-text: var(--accent);
    --glow-a: color-mix(in oklab, var(--accent) 12%, transparent);
    --glow-b: color-mix(in oklab, var(--accent) 8%, transparent);
  }
}
/* 手動切替（ヘッダーのボタン）用: <html data-theme="light|dark">
   属性が無い時は上の prefers-color-scheme = OS設定に従う */
:root[data-theme="light"] {
  color-scheme: light;
  --bg:#fbfaf8; --bg-soft:#f3f1ec; --bg-card:#ffffff; --line:#e7e4dd; --line-soft:#efece6;
  --fg:#191a1d; --fg-mut:#565b66; --fg-dim:#8b909b;
  --cover-grad: linear-gradient(135deg,#edeae3,#f7f6f2);
  --shadow: 0 1px 2px rgba(20,20,25,.04), 0 10px 30px rgba(20,20,25,.06);
  --accent-text: color-mix(in oklab, var(--accent) 74%, #000);
  --glow-a: color-mix(in oklab, var(--accent) 16%, transparent);
  --glow-b: color-mix(in oklab, var(--accent) 8%, transparent);
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg:#0c0d10; --bg-soft:#14161b; --bg-card:#171a21; --line:#262a33; --line-soft:#1e222a;
  --fg:#eef0f4; --fg-mut:#a3a9b6; --fg-dim:#6f7684;
  --cover-grad: linear-gradient(135deg,#1b2030,#0f1220);
  --shadow: 0 10px 30px rgba(0,0,0,.35);
  --accent-text: var(--accent);
  --glow-a: color-mix(in oklab, var(--accent) 12%, transparent);
  --glow-b: color-mix(in oklab, var(--accent) 8%, transparent);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  /* 日本語を文節（自然な区切り）で折り返す。対応外ブラウザは通常折り返しにフォールバック */
  word-break: auto-phrase;
  line-break: normal;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

body::before {
  content: "";
  position: fixed; inset: 0;
  background:
    radial-gradient(60vw 40vw at 78% -8%, var(--glow-a), transparent 60%),
    radial-gradient(50vw 40vw at 0% 8%,  var(--glow-b), transparent 60%);
  pointer-events: none; z-index: 0;
}

.wrap { width: min(100% - 2.5rem, var(--maxw)); margin-inline: auto; }
main { position: relative; z-index: 1; }

/* ---------- section scaffolding ---------- */
.section { padding: clamp(3.5rem, 8vw, 6.5rem) 0; }
.section-head { margin-bottom: clamp(1.75rem, 4vw, 3rem); }
.eyebrow {
  font-size: .74rem; letter-spacing: .28em; text-transform: uppercase;
  color: var(--accent-text); font-weight: 700; margin: 0 0 .6rem;
}
.section-title {
  font-family: var(--mincho);
  font-size: clamp(1.6rem, 4.5vw, 2.5rem);
  font-weight: 600; margin: 0; line-height: 1.25;
}
.section-lead { color: var(--fg-mut); margin: .8rem 0 0; max-width: 44em; }

/* ============================================================ Header / Nav */
.site-header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: saturate(1.4) blur(12px);
  background: color-mix(in oklab, var(--bg) 80%, transparent);
  border-bottom: 1px solid var(--line-soft);
}
/* ============ 名前（ワードマーク）は全箇所で共通 ============
   ヘッダー / ヒーロー / フッターで同じ字形・字間を使う。
   サイズだけ各所で変える。ここを変えると3箇所すべてに反映される。 */
.wordmark { font-family: var(--mincho); font-weight: 600; letter-spacing: .18em; }

.nav { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { font-size: 1.25rem; }
.brand span { color: inherit; }
.nav-links { display: flex; gap: 1.5rem; align-items: center; }
.nav-links a { font-size: .9rem; color: var(--fg-mut); font-weight: 500; position: relative; padding: .2rem 0; }
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: -2px;
  width: 0; height: 1.5px; background: var(--accent); transition: width .25s ease;
}
.nav-links a:hover { color: var(--fg); }
.nav-links a:hover::after { width: 100%; }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; width: 42px; height: 42px; color: var(--fg); }
.nav-toggle svg { width: 26px; height: 26px; }

/* テーマ切替ボタン（右端） */
.nav-actions { display: flex; align-items: center; gap: .15rem; }
.theme-toggle {
  width: 42px; height: 42px; display: grid; place-items: center;
  background: none; border: 1px solid transparent; border-radius: 10px;
  color: var(--fg-mut); cursor: pointer;
  transition: color .2s, border-color .2s;
}
.theme-toggle:hover { color: var(--fg); border-color: var(--line); }
.theme-toggle svg { width: 20px; height: 20px; }
/* 押すと切り替わる先のアイコンを出す（今ライト→月／今ダーク→太陽） */
.theme-toggle .ic-sun { display: none; }
.theme-toggle .ic-moon { display: block; }
.theme-toggle[data-mode="dark"] .ic-sun { display: block; }
.theme-toggle[data-mode="dark"] .ic-moon { display: none; }

/* ============================================================ Hero */
.hero { padding: clamp(3.5rem, 9vw, 7rem) 0 clamp(2.5rem, 6vw, 4rem); }
.hero-inner { display: grid; gap: clamp(1.5rem, 4vw, 3rem); }
.hero-kicker {
  display: inline-flex; align-items: center; gap: .5rem;
  font-size: .8rem; color: var(--fg-mut);
  border: 1px solid var(--line); border-radius: 999px; padding: .35rem .9rem; margin: 0 0 1.4rem;
}
.hero-kicker .dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--accent);
  box-shadow: 0 0 0 4px color-mix(in oklab, var(--accent) 25%, transparent);
}
/* ふりがな型: 小さく「アキリ」→ 大きく AKILI → 肩書き */
.hero h1.hero-name { margin: 0; font-weight: 600; }
.hero h1 .name-ja {
  display: block; font-family: var(--mincho);
  font-size: clamp(1.05rem, 2.8vw, 1.45rem);
  letter-spacing: .34em; color: var(--fg);
  margin-bottom: .5rem;
}
.hero h1 .name-en {
  display: block;
  font-size: clamp(2.4rem, 8.2vw, 5rem); line-height: 1.06;
}
.hero h1 .role {
  display: block; font-family: var(--sans);
  font-size: clamp(.85rem, 2.5vw, 1.05rem); letter-spacing: .22em;
  color: var(--fg-mut); font-weight: 600; margin-top: 1rem;
}
.hero-tag { color: var(--fg-mut); font-size: clamp(1rem,2.5vw,1.15rem); max-width: 46ch; margin: 1.4rem 0 0; }
.hero-cta { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2rem; }

/* buttons */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .8rem 1.4rem; border-radius: 999px; font-weight: 600; font-size: .95rem;
  border: 1px solid var(--line);
  transition: transform .15s ease, background .2s ease, border-color .2s ease, color .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }
.btn-primary:hover { background: color-mix(in oklab, var(--accent) 88%, #000); }
.btn-ghost { color: var(--fg); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent-text); }
.btn svg { width: 18px; height: 18px; }

/* ============================================================ Works */
.works-grid { display: grid; gap: var(--gap); grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
.work {
  background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius-lg);
  overflow: hidden; display: flex; flex-direction: column; box-shadow: var(--shadow);
  transition: transform .2s ease, border-color .2s ease;
}
.work:hover { transform: translateY(-4px); border-color: color-mix(in oklab, var(--accent) 50%, var(--line)); }
.work-cover {
  aspect-ratio: 3 / 4; background: var(--cover-grad);
  display: grid; place-items: center; position: relative; color: var(--fg-dim); font-size: .8rem;
}
.work-cover .placeholder { font-family: var(--mincho); font-size: 1.1rem; color: var(--fg-mut); padding: 1rem; text-align: center; }
.work-cover img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.work-cover.contain img { object-fit: contain; }
.badge { position: absolute; top: .8rem; left: .8rem; font-size: .72rem; font-weight: 700; letter-spacing: .08em; padding: .25rem .65rem; border-radius: 999px; }
.badge.ongoing { background: color-mix(in oklab, var(--accent) 20%, transparent); color: var(--accent-text); border: 1px solid color-mix(in oklab, var(--accent) 45%, transparent); }
.badge.done { background: color-mix(in oklab, var(--fg) 6%, transparent); color: var(--fg-mut); border: 1px solid var(--line); }
.work-body { padding: 1.2rem 1.3rem 1.4rem; display: flex; flex-direction: column; gap: .6rem; flex: 1; }
.work-title { font-family: var(--mincho); font-size: 1.25rem; margin: 0; font-weight: 600; }
.work-meta { font-size: .82rem; color: var(--fg-dim); margin: 0; }
.work-desc { font-size: .9rem; color: var(--fg-mut); margin: 0; flex: 1; }
.work-links { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: .4rem; }
.chip { font-size: .8rem; font-weight: 600; padding: .4rem .8rem; border-radius: 999px; border: 1px solid var(--line); color: var(--fg-mut); transition: border-color .2s, color .2s; }
.chip:hover { border-color: var(--accent); color: var(--accent-text); }

/* ============================================================ Goods feature */
.goods {
  position: relative; overflow: hidden;
  border: 1px solid color-mix(in oklab, var(--accent) 35%, var(--line)); border-radius: var(--radius-lg);
  background: radial-gradient(80% 120% at 100% 0%, color-mix(in oklab, var(--accent) 14%, transparent), transparent 60%), var(--bg-soft);
  padding: clamp(1.8rem, 5vw, 3.2rem); display: grid; gap: 1.5rem; align-items: center; box-shadow: var(--shadow);
}
@media (min-width: 780px) { .goods { grid-template-columns: 1.3fr .9fr; } }
.goods .tag { color: var(--accent-text); font-weight: 700; letter-spacing: .2em; font-size: .78rem; text-transform: uppercase; }
.goods h3 { font-family: var(--mincho); font-size: clamp(1.5rem, 4vw, 2.1rem); margin: .5rem 0 .8rem; }
.goods p { color: var(--fg-mut); margin: 0 0 1.4rem; }
.goods-visual { border: 1px solid var(--line); border-radius: var(--radius); aspect-ratio: 16/10; background: var(--cover-grad); display: grid; place-items: center; color: var(--fg-dim); font-size: .85rem; overflow: hidden; }
.goods-visual.has-img { aspect-ratio: 1200/630; }

/* グッズ欄の副導線（FANBOXプリント / BOOTH）
   見出しを画像の“上”に置く。上のオーダーメイドバナーの続きに見えないよう、
   何の塊かを先に名乗らせる。 */
.goods-band {
  display: block; margin-top: 1.75rem; overflow: hidden;
  border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--bg-card); box-shadow: var(--shadow);
  transition: transform .18s ease, border-color .2s ease;
}
.goods-band + .goods-band { margin-top: 1rem; }   /* 副導線どうしは近づける */
.goods-band:hover { transform: translateY(-2px); border-color: color-mix(in oklab, var(--accent) 50%, var(--line)); }
.goods-band .gb-row {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 1.1rem 1.4rem;
}
.goods-band img { width: 100%; height: auto; display: block; border-top: 1px solid var(--line); }
.goods-band .ga-text { display: flex; align-items: baseline; gap: .9rem; flex-wrap: wrap; }
.goods-band .ga-title { font-family: var(--mincho); font-size: 1.25rem; font-weight: 600; }
.goods-band .ga-desc { color: var(--fg-mut); font-size: .88rem; }
.goods-band svg { width: 18px; height: 18px; flex: none; color: var(--fg-dim); transition: color .2s; }
.goods-band:hover svg { color: var(--accent); }
.goods-visual img { width: 100%; height: 100%; object-fit: cover; }

/* ============================================================ Tools (自作マンガツール) */
.tools-grid { display: grid; gap: var(--gap); grid-template-columns: repeat(auto-fill, minmax(280px,1fr)); }
.tool {
  background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 1.5rem; box-shadow: var(--shadow); display: flex; flex-direction: column; gap: .7rem;
  overflow: hidden; transition: transform .2s ease, border-color .2s ease;
}
.tool:hover { transform: translateY(-4px); border-color: color-mix(in oklab, var(--accent) 50%, var(--line)); }
.tool-thumb {
  margin: -1.5rem -1.5rem .3rem; border-bottom: 1px solid var(--line);
  aspect-ratio: 1200/630; overflow: hidden; background: var(--cover-grad);
  display: grid; place-items: center; color: var(--fg-dim); font-size: .8rem;
}
.tool-thumb img { width: 100%; height: 100%; object-fit: cover; }
.tool-badge { align-self: flex-start; font-size: .7rem; font-weight: 700; letter-spacing: .1em; padding: .25rem .6rem; border-radius: 999px; background: color-mix(in oklab, var(--accent) 18%, transparent); color: var(--accent-text); }
.tool h3 { font-family: var(--mincho); font-size: 1.3rem; margin: .2rem 0 0; }
.tool p { color: var(--fg-mut); font-size: .92rem; margin: 0; flex: 1; }
.tool .go { display: inline-flex; align-items: center; gap: .4rem; color: var(--accent-text); font-weight: 600; font-size: .9rem; margin-top: .3rem; }
.tool .go svg { width: 16px; height: 16px; }
.tool.soon { border-style: dashed; opacity: .8; }
.tool.soon .tool-badge { background: color-mix(in oklab, var(--fg) 7%, transparent); color: var(--fg-dim); }

/* ============================================================ Hub (読む/買う) */
.hub-grid { display: grid; gap: var(--gap); grid-template-columns: repeat(auto-fit, minmax(260px,1fr)); }
.hub-col { background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 1.5rem 1.5rem 1.7rem; box-shadow: var(--shadow); }
.hub-col h3 { font-size: 1rem; margin: 0 0 .3rem; display: flex; align-items: center; gap: .55rem; }
.hub-col h3 .ic { width: 20px; height: 20px; color: var(--accent); }
.hub-col .sub { font-size: .82rem; color: var(--fg-dim); margin: 0 0 1.1rem; }
.hub-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: .2rem; }
.hub-list a {
  display: flex; align-items: center; justify-content: space-between; gap: .75rem;
  padding: .7rem .3rem; border-bottom: 1px solid var(--line-soft);
  color: var(--fg); font-weight: 500; font-size: .95rem; transition: color .18s, padding .18s;
}
.hub-list li:last-child a { border-bottom: 0; }
.hub-list a:hover { color: var(--accent-text); padding-left: .6rem; }
.hub-list a .what { color: var(--fg-dim); font-size: .78rem; font-weight: 400; }
.hub-list a .arw { color: var(--fg-dim); transition: transform .18s; }
.hub-list a:hover .arw { transform: translateX(3px); color: var(--accent); }

/* ============================================================ About */
.about-grid { display: grid; gap: var(--gap); }
@media (min-width: 780px) { .about-grid { grid-template-columns: .8fr 1.2fr; align-items: start; } }
.avatar { aspect-ratio: 4/3; border-radius: var(--radius-lg); border: 1px solid var(--line); background: var(--cover-grad); overflow: hidden; position: relative; display: grid; place-items: center; color: var(--fg-dim); font-family: var(--mincho); font-size: 2rem; box-shadow: var(--shadow); }
.avatar img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.about-body p { color: var(--fg-mut); }
.about-body .lead { color: var(--fg); font-size: 1.05rem; line-height: 2; }
.about-body .about-works { margin-top: 1.6rem; }
.facts { list-style: none; padding: 0; margin: 1.4rem 0 0; display: grid; gap: .6rem; }
.facts li { display: grid; grid-template-columns: 7.5rem 1fr; gap: 1rem; font-size: .92rem; }
.facts .k { color: var(--fg-dim); }

/* ============================================================ Footer */
.site-footer { border-top: 1px solid var(--line); padding: clamp(2.5rem,6vw,4rem) 0 2.5rem; margin-top: 2rem; }
.footer-top { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 2rem; }
.footer-brand { font-size: 1.3rem; }
.footer-brand span { color: inherit; }
.social { display: flex; gap: .5rem; flex-wrap: wrap; }
.social a { width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 12px; display: grid; place-items: center; color: var(--fg-mut); transition: color .2s, border-color .2s, transform .15s; }
.social a:hover { color: var(--accent-text); border-color: var(--accent); transform: translateY(-2px); }
.social svg { width: 20px; height: 20px; }
.footer-note { margin-top: 2.5rem; color: var(--fg-dim); font-size: .82rem; display:flex; flex-wrap:wrap; gap:.4rem 1.2rem; justify-content: space-between; }

/* ============================================================ Mobile nav */
@media (max-width: 760px) {
  .nav-toggle { display: grid; place-items: center; }
  .nav-links {
    position: fixed; inset: 64px 0 auto 0; flex-direction: column; gap: 0; align-items: stretch;
    background: var(--bg-soft); border-bottom: 1px solid var(--line); padding: .5rem 1.25rem 1.25rem;
    transform: translateY(-120%); transition: transform .28s ease; box-shadow: 0 24px 40px rgba(0,0,0,.25);
  }
  .nav-links.open { transform: translateY(0); }
  .nav-links a { padding: .9rem 0; border-bottom: 1px solid var(--line-soft); font-size: 1rem; }
  .nav-links a::after { display: none; }
}

/* reveal on scroll */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } html { scroll-behavior: auto; } }
