/* hiro-hoshi-kazu.com 共通スタイル（ダークモード固定） */
:root{color-scheme:dark;--bg:#0e1426;--surface:#161d36;--surface2:#1c2542;--text:#e8ecf7;--muted:#9aa5c4;--line:#2a3558;--accent:#ffd36e;--accent-text:#1a1500;--link:#9fb4ff;--badge:#ffd36b;--badge-bg:#3a2e12}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.8 system-ui,-apple-system,"Hiragino Sans","Yu Gothic UI","Noto Sans JP",sans-serif}
main{max-width:720px;margin:0 auto;padding:40px 16px 64px}
a{color:var(--link)}

/* サイトヘッダー */
.site-header{position:sticky;top:0;z-index:10;background:rgba(14,20,38,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.site-header-in{max-width:720px;margin:0 auto;padding:10px 16px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.brand{color:var(--text);text-decoration:none;font-weight:700;letter-spacing:.06em}
.brand span{color:var(--accent)}
.site-header nav{display:flex;gap:4px}
.site-header nav a{padding:4px 12px;border-radius:999px;color:var(--muted);text-decoration:none;font-size:.92rem}
.site-header nav a:hover{color:var(--text);background:var(--surface2)}

/* ヒーロー・ボタン */
.hero{text-align:center;margin-bottom:12px}
h1{margin:8px 0 4px;font-size:2.2rem;font-weight:700;letter-spacing:.06em}
.beta{display:inline-block;margin-left:.5em;padding:0 .7em;font-size:.8rem;font-weight:700;letter-spacing:.1em;color:var(--badge);background:var(--badge-bg);border-radius:999px;vertical-align:.3em}
.lead{margin:0 0 24px;color:var(--muted)}
.cta{display:inline-block;min-width:220px;padding:14px 36px;font-size:1.1rem;font-weight:700;text-align:center;text-decoration:none;color:var(--accent-text);background:var(--accent);border-radius:10px}
.cta:hover{filter:brightness(1.08)}
.cta:focus-visible,summary:focus-visible,a:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.hint{margin:10px 0 0;font-size:.85rem;color:var(--muted)}

/* セクション・カード */
section{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px 24px;margin-top:28px}
h2{margin:0 0 8px;font-size:1.15rem}
.uses{margin:0;padding-left:1.3em;list-style:disc}
.uses li{margin-bottom:4px}
.steps{margin:0;padding-left:1.4em}
.steps li{margin-bottom:8px}
.cta-row{margin:20px 0 0;text-align:center}
.sample{display:grid;gap:10px}
.card{padding:14px 18px;background:var(--bg);border:1px solid var(--line);border-radius:12px}
.card.main{border-color:var(--accent)}
.card h3{margin:0 0 2px;font-size:.85rem;font-weight:400;color:var(--muted)}
.card .body{margin:0}
details{margin-bottom:8px;padding:10px 14px;background:var(--bg);border:1px solid var(--line);border-radius:10px}
summary{cursor:pointer}
details p{margin:8px 0 0;color:var(--muted);font-size:.95rem}
footer{margin-top:36px;text-align:center;font-size:.85rem;color:var(--muted)}
footer p{margin:4px 0}
footer a{color:var(--muted)}

/* 解説ページ・読み物 */
.crumbs{margin:0 0 20px;font-size:.85rem;color:var(--muted)}
.crumbs a{color:var(--muted)}
.prose h1{font-size:1.8rem;margin:0 0 8px}
.prose .lead{margin:0 0 20px}
.prose section h2{margin:0 0 10px;font-size:1.2rem}
.prose h3{margin:18px 0 6px;font-size:1rem}
.prose p{margin:0 0 10px}
.prose ul,.prose ol{margin:0 0 10px;padding-left:1.4em}
.prose li{margin-bottom:4px}
.toc{margin:0 0 4px;padding:14px 20px;background:var(--surface);border:1px solid var(--line);border-radius:14px}
.toc p{margin:0 0 6px;font-weight:700}
.toc ol{margin:0;columns:2;column-gap:28px}
@media (max-width:560px){.toc ol{columns:1}}
.prose table{width:100%;border-collapse:collapse;margin:8px 0 12px;font-size:.92rem}
.prose th,.prose td{text-align:left;vertical-align:top;padding:8px 10px;border:1px solid var(--line)}
.prose th{background:var(--bg);color:var(--muted);font-weight:700;white-space:nowrap}
.prose td.pt{white-space:nowrap;font-weight:700}
.prose td:first-child{white-space:nowrap}
.note{margin:10px 0 0;padding:10px 14px;background:var(--bg);border-left:3px solid var(--accent);border-radius:4px;font-size:.92rem;color:var(--muted)}
.prose code{padding:1px 6px;background:var(--bg);border:1px solid var(--line);border-radius:6px;font-size:.9em}
.meta{margin:0 0 16px;font-size:.85rem;color:var(--muted)}
.prose .pager{display:flex;justify-content:space-between;gap:12px;margin-top:28px;font-size:.92rem}

/* トップ・一覧 */
.game-grid{display:grid;gap:16px;margin-top:28px}
@media (min-width:640px){.game-grid{grid-template-columns:1fr 1fr}}
.game-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:14px;overflow:hidden;color:inherit;text-decoration:none}
.game-card:hover{border-color:var(--accent)}
.game-card .thumb{display:flex;gap:6px;justify-content:center;padding:14px;background:linear-gradient(135deg,#1c2542,#2a1f45)}
.game-card .thumb img{height:132px;width:auto;border-radius:6px;box-shadow:0 2px 10px rgba(0,0,0,.45)}
.game-card .txt{padding:14px 18px 18px;flex:1}
.game-card h3{margin:0 0 4px;font-size:1.1rem}
.game-card p{margin:0;color:var(--muted);font-size:.92rem}
.game-card .go{display:inline-block;margin-top:10px;color:var(--accent);font-weight:700;font-size:.92rem}
.article-list{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.article-list a{display:block;padding:14px 18px;background:var(--bg);border:1px solid var(--line);border-radius:12px;color:inherit;text-decoration:none}
.article-list a:hover{border-color:var(--accent)}
.article-list b{display:block;color:var(--text)}
.article-list span{font-size:.9rem;color:var(--muted)}
.cast{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}
.cast figure{margin:0;background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:10px;text-align:center}
.cast img{width:100%;height:auto;border-radius:8px;display:block}
.cast figcaption{margin-top:6px;font-size:.85rem;color:var(--muted);line-height:1.5}
.cast figcaption b{display:block;color:var(--text);font-size:.95rem}

/* ===== トップ：にぎやかなステージ ===== */
.site-header-in{max-width:1000px}
.stage{position:relative;overflow:hidden;padding:48px 0 0;text-align:center;
  background:radial-gradient(900px 420px at 15% 0%,rgba(255,126,182,.28),transparent 60%),radial-gradient(800px 420px at 90% 10%,rgba(255,211,110,.20),transparent 60%),radial-gradient(900px 500px at 50% 100%,rgba(139,111,196,.30),transparent 65%),#120f26}
.stage-in{position:relative;z-index:2;max-width:760px;margin:0 auto;padding:0 16px}
.eyebrow{margin:0;letter-spacing:.4em;font-size:.8rem;color:var(--accent);text-transform:uppercase}
h1.big{margin:6px 0 10px;font-size:clamp(2.4rem,8vw,4.4rem);line-height:1.15;letter-spacing:.08em;font-family:"Shippori Mincho","Hiragino Mincho ProN","Yu Mincho",serif;font-weight:800;text-shadow:0 2px 24px rgba(255,126,182,.45)}
h1.big span{background:linear-gradient(90deg,#ff9ac8,#ffd36e);-webkit-background-clip:text;background-clip:text;color:transparent}
.stage .lead{font-size:1.05rem;color:#cfd6ee}
.cta-pair{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.cta{background:linear-gradient(180deg,#ffe08a,#ffc94d)}
.cta.alt{background:transparent;color:var(--accent);border:2px solid var(--accent);padding:12px 34px}
.cta.alt:hover{background:rgba(255,211,110,.12);filter:none}
.petals{position:absolute;inset:0;pointer-events:none;z-index:1}
.petals i{position:absolute;top:-30px;left:var(--l);width:var(--s);height:calc(var(--s)*.7);background:#ff9ac8;border-radius:150% 0 150% 0;opacity:.75;animation:fall var(--t) linear var(--d) infinite}
@keyframes fall{0%{transform:translate3d(0,-20px,0) rotate(0)}50%{transform:translate3d(40px,260px,0) rotate(200deg)}100%{transform:translate3d(-20px,560px,0) rotate(400deg);opacity:0}}
.parade{position:relative;z-index:2;margin-top:34px;padding:10px 0 34px;overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent)}
.parade-track{display:flex;gap:14px;width:max-content;animation:marquee 70s linear infinite}
.parade:hover .parade-track{animation-play-state:paused}
@keyframes marquee{to{transform:translateX(calc(-50% - 7px))}}
.pf{position:relative;display:block;flex:none;width:170px;border-radius:12px;color:#fff;text-decoration:none;box-shadow:0 8px 22px rgba(0,0,0,.5);transition:transform .25s}
.pf:nth-child(odd){transform:translateY(8px) rotate(-1.5deg)}
.pf:nth-child(even){transform:translateY(-4px) rotate(1.5deg)}
.pf:hover{transform:translateY(-10px) scale(1.05) rotate(0)}
.pf img{display:block;width:100%;height:auto;border-radius:12px}
.pf span{position:absolute;left:0;right:0;bottom:0;padding:18px 6px 6px;text-align:center;font-size:.85rem;font-weight:700;border-radius:0 0 12px 12px;background:linear-gradient(transparent,rgba(0,0,0,.7))}
@media (max-width:560px){.pf{width:130px}}
@media (prefers-reduced-motion:reduce){.petals{display:none}.parade-track{animation:none;flex-wrap:wrap;justify-content:center;width:auto;padding:0 12px}.parade-track .pf:nth-child(n+14){display:none}.parade{-webkit-mask-image:none;mask-image:none}}

main.wide{max-width:1000px;padding-top:12px}
.band{background:transparent;border:0;padding:0;margin-top:44px}
.h-flower{margin:0 0 6px;font-size:1.5rem;letter-spacing:.08em;font-family:"Shippori Mincho","Hiragino Mincho ProN","Yu Mincho",serif;text-align:center}
.h-flower::before,.h-flower::after{content:"✿";color:#ff9ac8;margin:0 .6em;font-size:.8em}
.band .sub{text-align:center;color:var(--muted);margin:0 0 18px}
.game-card .thumb.fan{padding:22px 14px 12px;gap:0;background:radial-gradient(300px 140px at 50% 100%,rgba(255,126,182,.35),transparent 70%),linear-gradient(135deg,#1c2542,#2a1f45)}
.game-card .thumb.fan img{height:190px;border-radius:8px;margin:0 -14px;border:2px solid rgba(255,255,255,.85);transition:transform .25s}
.game-card .thumb.fan img:nth-child(1){transform:rotate(-8deg) translateY(6px)}
.game-card .thumb.fan img:nth-child(2){transform:scale(1.08);z-index:2}
.game-card .thumb.fan img:nth-child(3){transform:rotate(8deg) translateY(6px)}
.game-card:hover .thumb.fan img:nth-child(1){transform:rotate(-12deg) translate(-8px,2px)}
.game-card:hover .thumb.fan img:nth-child(3){transform:rotate(12deg) translate(8px,2px)}
.chips{list-style:none;display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin:18px 0 0;padding:0}
.chips li{padding:4px 14px;border:1px solid var(--line);border-radius:999px;background:var(--surface);font-size:.85rem;color:var(--muted)}
.ribbon{display:flex;gap:12px;overflow-x:auto;padding:14px 4px 18px;scroll-snap-type:x proximity}
.ribbon a{flex:none;width:120px;scroll-snap-align:start;color:var(--text);text-decoration:none;text-align:center;font-size:.85rem}
.ribbon img{display:block;width:100%;height:auto;border-radius:8px;box-shadow:0 6px 16px rgba(0,0,0,.5);transition:transform .2s}
.ribbon a:hover img{transform:translateY(-6px) rotate(-2deg)}
.ribbon span{display:block;margin-top:8px}
.icons{display:grid;grid-template-columns:repeat(auto-fill,minmax(88px,1fr));gap:14px;max-width:760px;margin:0 auto}
.icons a{text-align:center;color:var(--text);text-decoration:none;font-size:.85rem}
.icons img{display:block;width:80px;height:80px;margin:0 auto 4px;border-radius:50%;border:3px solid var(--accent);object-fit:cover;transition:transform .2s}
.icons a:hover img{transform:scale(1.12) rotate(-4deg)}

/* ===== 札の図解 ===== */
.cardrow{display:flex;flex-wrap:wrap;gap:12px;margin:12px 0}
.cardrow figure{margin:0;width:112px;text-align:center}
.cardrow img{display:block;width:100%;height:auto;border-radius:8px;box-shadow:0 5px 14px rgba(0,0,0,.5)}
.cardrow figcaption{margin-top:6px;font-size:.78rem;line-height:1.4;color:var(--muted)}
.cardrow figcaption b{display:block;color:var(--text);font-size:.85rem}
.cardlist{display:grid;gap:14px;margin:12px 0}
.cardlist .c{display:grid;grid-template-columns:92px 1fr;gap:14px;align-items:start;padding:10px;background:var(--bg);border:1px solid var(--line);border-radius:12px}
.cardlist img{display:block;width:92px;height:auto;border-radius:6px;box-shadow:0 4px 12px rgba(0,0,0,.5)}
.cardlist h4{margin:0 0 4px;font-size:1rem}
.cardlist p{margin:0;font-size:.92rem;color:var(--muted)}
.tag{display:inline-block;margin-left:.5em;padding:0 .6em;border-radius:999px;font-size:.72rem;font-weight:700;vertical-align:.1em}
.tag.hikari{background:#ffd36e;color:#241a00}.tag.tane{background:#7fd0a3;color:#04210f}.tag.tanzaku{background:#ff9ac8;color:#2b0616}.tag.kasu{background:#3a4468;color:#dde3f7}
.toc{margin-top:28px}
@media (min-width:700px){.cardlist{grid-template-columns:1fr 1fr}}
section[id]{scroll-margin-top:72px}