/* なぞって描くシミュレーター共通。作品の画面は暗い台の上に縦長の絵を1枚置く */
:root{ --bg:#141312; --fg:#f4f1ea; --sub:#a29d94; --bar:#1d1c1a; --btn:#f4f1ea; --btnfg:#1a1918; --line:#34322e; }
:root[data-theme="light"]{ --bg:#141312; }
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{background:var(--bg);color:var(--fg);font-family:"Noto Sans JP",system-ui,sans-serif;-webkit-font-smoothing:antialiased;overflow:hidden;overscroll-behavior:none}
header{height:48px;display:flex;align-items:center;justify-content:center;padding:0 64px;white-space:nowrap;background:var(--bar);font-weight:700;font-size:15px;letter-spacing:.02em;position:relative}
header a{position:absolute;left:16px;color:var(--sub);text-decoration:none;font-size:13px;font-weight:400}
.wrap{position:relative;height:calc(100dvh - 48px);display:flex;align-items:center;justify-content:center;padding:0}
#stage{display:block;height:100%;max-width:100vw;aspect-ratio:3/5;object-fit:contain;touch-action:none;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none}
@supports not (aspect-ratio:3/5){ #stage{width:auto} }
@media (max-aspect-ratio:3/5){ #stage{height:auto;width:100vw} }
.bar{position:absolute;left:0;right:0;bottom:max(18px,env(safe-area-inset-bottom));display:flex;justify-content:center;gap:10px;padding:0 16px;pointer-events:none}
.bar button,.bar .field{pointer-events:auto}
button{font:inherit;font-size:16px;font-weight:700;height:48px;padding:0 22px;border-radius:999px;border:0;background:var(--btn);color:var(--btnfg);cursor:pointer;box-shadow:0 4px 18px rgba(0,0,0,.35);display:inline-flex;align-items:center;justify-content:center;gap:6px}
button:disabled{opacity:.45;cursor:default}
button.icon{width:56px;padding:0}
button svg{width:20px;height:20px}
#start{min-width:150px;font-size:19px}
.title-card{position:absolute;top:22%;left:50%;transform:translateX(-50%);text-align:center;pointer-events:none;text-shadow:0 2px 14px rgba(0,0,0,.6);width:min(90vw,420px)}
.title-card h1{word-break:keep-all;overflow-wrap:anywhere;margin:0;font-size:clamp(26px,7vw,36px);font-weight:900;letter-spacing:.02em}
.title-card p{margin:8px 0 0;font-size:14px;color:#ece7dc}
.field{display:flex;align-items:center;gap:8px;background:rgba(20,19,18,.82);border-radius:999px;padding:6px 6px 6px 16px;box-shadow:0 4px 18px rgba(0,0,0,.35)}
.field input{font:inherit;font-size:16px;width:9em;border:0;background:transparent;color:#fff;outline:none}
.field input::placeholder{color:#9b968c}
.done-top{position:absolute;left:0;right:0;bottom:calc(max(18px,env(safe-area-inset-bottom)) + 60px);display:flex;justify-content:center;pointer-events:none}
.hint{position:absolute;top:14px;left:50%;transform:translateX(-50%);font-size:13px;color:#fff;background:rgba(0,0,0,.45);padding:6px 14px;border-radius:999px;pointer-events:none;white-space:nowrap;transition:opacity .4s}
body[data-mode="title"] .m-draw, body[data-mode="title"] .m-done,
body[data-mode="draw"] .m-title, body[data-mode="draw"] .m-done,
body[data-mode="done"] .m-title, body[data-mode="done"] .m-draw{display:none!important}
.aff{position:absolute;left:50%;top:14px;transform:translateX(-50%);max-width:calc(100% - 32px);display:flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;background:rgba(20,19,18,.72);color:#f4f1ea;font-size:13px;text-decoration:none;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.aff i{font-style:normal;font-size:10px;font-weight:700;padding:1px 5px;border:1px solid currentColor;border-radius:4px;opacity:.7}
.bar button{white-space:nowrap}
/* タイトル画面の下の説明。タイトル画面のときだけ下へスクロールして読める */
body[data-mode="title"]{overflow-y:auto}
body[data-mode="title"] #stage{touch-action:pan-y}
.about{max-width:640px;margin:0 auto;padding:28px 16px 56px;color:var(--sub);font-size:14px;line-height:1.8}
.about h2{font-size:16px;color:var(--fg);margin:28px 0 8px}
.about h2:first-child{margin-top:0}
.about p,.about ol,.about ul,.about dl{margin:0}
.about dt{color:var(--fg);font-weight:700;margin-top:10px}
.about dd{margin:2px 0 0}
.about a{color:var(--fg)}
.about .by{margin-top:28px;font-size:12px}