/* 3日間チャレンジ 参加者ページ共通（2026-09-30・LPとバナーの色に合わせる） */
:root{--bg:#F3E8DC;--card:#FBF6F0;--pink:#D9A0AC;--pink2:#c0697f;--pink-d:#a8566c;--terra:#C97A54;--ink:#4A3B35;--muted:#8a7a72;--line:#ead9d0;--soft:#fbe3ea}
*{box-sizing:border-box}html,body{margin:0}
body{background:var(--card);color:var(--ink);font-family:"Hiragino Kaku Gothic ProN","Noto Sans JP",sans-serif;font-size:16px;line-height:1.9}
img{max-width:100%}
a{color:var(--pink-d)}
.band{position:fixed;left:0;top:0;bottom:0;width:6px;background:linear-gradient(var(--pink),#E7C4C9);z-index:9}
.wrap{max-width:760px;margin:0 auto;padding:0 18px}
.top{background:linear-gradient(160deg,#fff6f7 0%,#f9e1e6 60%,#f3d0d8 100%);padding:22px 0 34px}
.top .banner{display:block;width:100%;border-radius:18px;box-shadow:0 10px 26px rgba(90,61,72,.14)}
.top .kick{margin-top:22px;text-align:center;font-weight:900;color:var(--pink2);font-size:15px}
.top h1{margin:6px 0 0;text-align:center;font-size:clamp(24px,6.4vw,34px);line-height:1.5;font-weight:900}
.top h1 .mark{background:linear-gradient(transparent 62%,#f3c9d2 62%)}
.top .lead{text-align:center;margin:12px 0 0;font-size:15px}
.nav{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-top:16px}
.nav a{background:#fff;border:1.5px solid var(--pink);border-radius:999px;padding:6px 14px;font-size:13.5px;font-weight:800;color:var(--pink-d);text-decoration:none}
.nav a.here{background:var(--pink2);border-color:var(--pink2);color:#fff}
.sec{padding:40px 0}
.sec.cream{background:var(--bg)}
.en{display:block;text-align:center;font-family:Georgia,serif;font-style:italic;color:var(--pink);letter-spacing:.12em;font-size:14px}
.h2{text-align:center;font-weight:900;font-size:clamp(20px,5.4vw,27px);line-height:1.5;margin:2px 0 22px}
.h2 .mark{background:linear-gradient(transparent 62%,#f3c9d2 62%)}
.card{background:#fff;border-radius:16px;padding:18px 18px;margin:0 0 14px;box-shadow:0 4px 14px rgba(90,61,72,.06)}
.card h3{margin:0 0 6px;font-size:17px;color:var(--pink-d)}
.card p{margin:0 0 8px;font-size:15px}
.card p:last-child{margin-bottom:0}
.goal{background:linear-gradient(135deg,var(--pink2),#d98aa0);color:#fff;border-radius:20px;padding:26px 20px;text-align:center}
.goal .lab{font-family:Georgia,serif;font-style:italic;letter-spacing:.2em;font-size:12px;opacity:.9}
.goal p{margin:8px 0 0;font-weight:800;font-size:16.5px;line-height:1.9}
.goal b{border-bottom:2px solid #fff}
.promise{display:flex;flex-direction:column;gap:10px}
.promise div{display:flex;align-items:center;gap:14px;background:#fff;border-radius:14px;padding:14px 16px;border:1.5px solid var(--line)}
.promise .n{font-family:Georgia,serif;font-size:24px;color:var(--pink);font-weight:700;flex:0 0 auto}
.promise b{display:block;font-size:15.5px}
.promise span{font-size:13.5px;color:var(--muted);line-height:1.7}
.video{position:relative;padding-top:56.25%;border-radius:16px;overflow:hidden;box-shadow:0 8px 24px rgba(90,61,72,.16);background:#2b2430}
.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.video .soon{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;flex-direction:column;color:#fff;text-align:center;font-weight:800;padding:20px}
.video .soon small{font-weight:500;opacity:.8;font-size:13px;margin-top:6px}
.prep{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.prep>a,.prep>div{display:block;background:#fff;border:1.5px solid var(--line);border-radius:14px;padding:14px;text-decoration:none;color:var(--ink)}
.prep .ic{font-size:26px}
.prep b{display:block;font-size:15px;margin:2px 0}
.prep span{font-size:13px;color:var(--muted);line-height:1.65;display:block}
.prep .go{color:var(--pink-d);font-weight:800;font-size:13px;margin-top:6px}
@media(max-width:520px){.prep{grid-template-columns:1fr}}
.tl{position:relative;margin:0;padding:0 0 0 26px;list-style:none}
.tl::before{content:"";position:absolute;left:8px;top:8px;bottom:8px;width:3px;border-radius:2px;background:linear-gradient(var(--pink),var(--terra))}
.tl li{position:relative;margin:0 0 14px}
.tl li::before{content:"";position:absolute;left:-24px;top:16px;width:13px;height:13px;border-radius:50%;background:#fff;border:3px solid var(--pink2)}
.tl li.small::before{border-color:var(--pink);width:11px;height:11px;left:-23px}
.tl .box{background:#fff;border-radius:14px;padding:12px 16px;box-shadow:0 4px 14px rgba(90,61,72,.06)}
.tl li.small .box{background:transparent;box-shadow:none;padding:6px 4px;font-size:14px;color:var(--muted)}
.tl .dt{display:inline-block;background:var(--pink2);color:#fff;font-weight:900;border-radius:8px;padding:2px 10px;font-size:13.5px}
.tl li.pre .dt{background:#E7C4C9;color:var(--ink)}
.tl h3{margin:6px 0 2px;font-size:16.5px}
.tl p{margin:0;font-size:14.5px}
.tl .get{margin-top:4px;color:var(--terra);font-weight:800;font-size:14px}
.step{background:#fff;border-radius:16px;margin:0 0 14px;overflow:hidden;box-shadow:0 4px 14px rgba(90,61,72,.06)}
.step .hd{display:flex;align-items:center;gap:10px;padding:12px 16px;border-bottom:1px solid var(--line)}
.step .no{background:var(--pink2);color:#fff;font-weight:900;border-radius:8px;padding:3px 10px;font-size:14px;white-space:nowrap}
.step .no.cc{background:var(--terra)}
.step .hd b{font-size:16px}
.step .bd{padding:12px 16px 16px;font-size:15px}
.step .bd p{margin:0 0 8px}
.step ol{margin:4px 0 8px;padding-left:1.3em}
.step li{margin:2px 0}
.os{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:8px 0}
.os div{background:var(--card);border-radius:10px;padding:10px 12px;font-size:14px}
.os b{color:var(--pink-d)}
@media(max-width:520px){.os{grid-template-columns:1fr}}
.tip{background:#fff7ef;border:1.5px dashed var(--terra);border-radius:12px;padding:10px 14px;font-size:14px;margin-top:8px}
.tip b{color:var(--terra)}
.ok{background:#f1f8f0;border:1.5px solid #bcd9b6;border-radius:12px;padding:10px 14px;font-size:14px;margin-top:8px}
.check{background:#fff;border:2px solid var(--pink2);border-radius:14px;padding:6px 16px;margin:0}
.check li{list-style:none;position:relative;padding:11px 0 11px 34px;border-bottom:1px dashed var(--line);font-weight:700;font-size:15px;line-height:1.7}
.check li:last-child{border-bottom:0}
.check li::before{content:"✓";position:absolute;left:0;top:12px;width:24px;height:24px;border-radius:6px;background:var(--pink2);color:#fff;text-align:center;line-height:24px;font-size:14px}
.check ul{margin:0;padding:0}
.prompt{position:relative;background:#2b2430;color:#f5eef2;border-radius:12px;padding:16px 14px;font-size:12.5px;line-height:1.9;white-space:pre-wrap;font-family:ui-monospace,Consolas,monospace;margin-top:8px}
.copybtn{position:absolute;top:10px;right:10px;background:var(--pink2);color:#fff;border:none;border-radius:8px;padding:6px 12px;font-size:12px;cursor:pointer;font-family:inherit}
.btn{display:block;text-align:center;background:linear-gradient(135deg,var(--terra),#d98f6b);color:#fff !important;text-decoration:none;font-weight:900;padding:15px 18px;border-radius:999px;margin:16px auto 0;max-width:420px;box-shadow:0 8px 20px rgba(201,122,84,.3)}
.btn small{display:block;font-weight:600;font-size:12px;opacity:.95}
.btn.sub{background:#fff;color:var(--pink-d) !important;border:2px solid var(--pink);box-shadow:none}
.help li{margin:0 0 6px}
kbd{background:#fff;border:1px solid var(--line);border-bottom-width:2px;border-radius:5px;padding:0 5px;font-size:13px}
.foot{padding:28px 0 50px;text-align:center;font-size:12px;color:var(--muted)}
/* ふわっと出る動き */
.rv{opacity:0;transform:translateY(20px);transition:opacity .7s ease,transform .7s ease}
.rv.on{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}}

/* ── 参加登録・ログイン・報告（2026-10-01 クロ）── */
body.d3-wait .sec,body.d3-wait .top .nav{visibility:hidden}
.pvbar{background:#4A3B35;color:#fff;text-align:center;font-size:13px;padding:6px 10px}
.form .q{background:#fff;border-radius:16px;padding:16px 18px;margin:0 0 12px;box-shadow:0 4px 14px rgba(90,61,72,.06)}
.form .q>b{display:block;font-size:15.5px;margin:0 0 4px}
.form .q .hint{display:block;font-size:13px;color:var(--muted);margin:0 0 8px;line-height:1.7}
.form input[type=text],.form input[type=password],.form input[type=email],.form textarea{width:100%;font:inherit;font-size:16px;border:1.5px solid var(--line);border-radius:12px;padding:10px 12px;background:#fffdfb;color:var(--ink)}
.form textarea{min-height:92px;line-height:1.7}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--pink2)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips label{display:inline-flex;align-items:center;gap:6px;border:1.5px solid var(--line);border-radius:999px;padding:6px 12px;font-size:14px;background:#fffdfb;cursor:pointer}
.chips input{accent-color:var(--pink2)}
.chips label:has(input:checked){border-color:var(--pink2);background:var(--soft);font-weight:800}
.form .sep{text-align:center;color:var(--pink-d);font-weight:800;margin:22px 0 12px}
.form .consent{display:flex;gap:8px;align-items:flex-start;font-size:14px;background:#fff;border-radius:14px;padding:14px 16px;border:1.5px solid var(--line)}
.form .consent input{margin-top:6px;accent-color:var(--pink2);transform:scale(1.2)}
.submit{display:block;width:100%;border:0;border-radius:999px;background:var(--pink2);color:#fff;font:inherit;font-weight:900;font-size:17px;padding:14px;margin:18px 0 6px;cursor:pointer;box-shadow:0 8px 20px rgba(192,105,127,.3)}
.submit:disabled{opacity:.6}
.err{color:#b23a48;font-weight:800;font-size:14px;text-align:center;min-height:1.5em}
.okmsg{color:#2f7a4f;font-weight:800;font-size:14px;text-align:center}
.tabs{display:flex;gap:8px;justify-content:center;margin:0 0 16px}
.tabs a{flex:1;max-width:150px;text-align:center;border:1.5px solid var(--pink);border-radius:12px;padding:8px 4px;text-decoration:none;font-weight:900;color:var(--pink-d);background:#fff}
.tabs a.on{background:var(--pink2);border-color:var(--pink2);color:#fff}
.tabs a small{display:block;font-weight:500;font-size:11.5px}
.qbox{background:linear-gradient(135deg,#fff,#fbe3ea);border:1.5px solid var(--pink);border-radius:16px;padding:16px 18px;margin:0 0 12px}
.qbox .lab{font-size:12px;letter-spacing:.15em;color:var(--pink-d);font-weight:800}
.qbox p{margin:4px 0 0;font-weight:900;font-size:16.5px;line-height:1.7}
.back{background:#fff;border-left:4px solid var(--terra);border-radius:10px;padding:12px 14px;margin:0 0 12px;font-size:14.5px}
.back b{color:var(--terra)}
.tbl{width:100%;border-collapse:collapse;font-size:13px;background:#fff}
.tbl th,.tbl td{border:1px solid var(--line);padding:6px 8px;vertical-align:top;text-align:left}
.tbl th{background:var(--soft);white-space:nowrap}
.mini{font-size:13px;color:var(--muted);text-align:center}

/* 読んでおくと分かりやすいもの（しくみ図解・きほん操作8つ）10/1 100日サイトのガイドから移植 */
.fig{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 16px;margin-top:12px}
.fig .cap{font-size:11.5px;font-weight:700;color:var(--pink-d);letter-spacing:.12em;margin-bottom:10px}
.row3{display:grid;grid-template-columns:1fr 22px 1fr 22px 1fr;gap:6px;align-items:stretch;text-align:center}
.row3 .box{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:12px 8px;display:flex;flex-direction:column;justify-content:center}
.row3 .box.hl{background:var(--soft);border-color:var(--pink)}
.row3 .ico{font-size:28px;line-height:1.2}
.row3 .t{font-size:13px;font-weight:800;margin-top:6px;line-height:1.6}
.row3 .d{font-size:11.5px;color:var(--muted);margin-top:3px;line-height:1.6}
.row3 .arrow{display:flex;align-items:center;justify-content:center;color:var(--pink-d);font-weight:900;font-size:18px}
.desk{border:2px dashed var(--pink);border-radius:14px;padding:14px;margin-top:10px}
.desk .label{text-align:center;font-size:13px;font-weight:800;color:var(--pink-d);margin-bottom:10px}
.files{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px}
.files .file{background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px 8px;text-align:center}
.files .ico{font-size:24px}
.files .t{font-size:12.5px;font-weight:800;margin-top:4px}
.files .d{font-size:11px;color:var(--muted);margin-top:3px;line-height:1.5}
@media (max-width:480px){.row3{grid-template-columns:1fr}.row3 .arrow{transform:rotate(90deg);padding:2px 0}.files{grid-template-columns:1fr}}
.op{border:1px solid var(--line);border-radius:14px;background:#fff;padding:16px 18px;margin:0 0 12px}
.op .n{display:inline-block;background:var(--pink-d);color:#fff;font-size:11.5px;font-weight:800;border-radius:999px;padding:2px 12px;letter-spacing:.1em}
.op h3{font-size:16.5px;font-weight:900;margin:8px 0 6px}
.op p{font-size:14.5px;margin:0}
.op .tip{background:var(--soft);border-radius:8px;padding:8px 12px;font-size:13.5px;margin-top:8px}
.key{display:inline-block;background:#f5f5f5;border:1px solid #ddd;border-radius:6px;padding:1px 8px;font-family:ui-monospace,Consolas,monospace;font-size:12.5px}
.reads{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.reads a{display:block;background:#fff;border:1.5px solid var(--line);border-radius:14px;padding:14px;text-decoration:none;color:var(--ink)}
.reads .ic{font-size:26px}
.reads b{display:block;font-size:15px;margin:2px 0}
.reads span{font-size:13px;color:var(--muted);line-height:1.65;display:block}
.reads .go{color:var(--pink-d);font-weight:800;font-size:13px;margin-top:6px}
@media(max-width:520px){.reads{grid-template-columns:1fr}}

/* ── 10/3 洗練版（トップ・ナビ）：朝の光が入るキッチンの、ミルクティー ── */
.navbar{position:sticky;top:0;z-index:8;background:rgba(251,246,240,.88);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid rgba(217,160,172,.35)}
.navbar .nav{max-width:760px;margin:0 auto;padding:0 12px 0 18px;display:flex;flex-wrap:nowrap;justify-content:flex-start;gap:0;overflow-x:auto;scrollbar-width:none}
.navbar .nav::-webkit-scrollbar{display:none}
.navbar .brand{flex:0 0 auto;align-self:center;font-family:Georgia,serif;font-style:italic;font-size:11px;letter-spacing:.18em;color:var(--pink);margin-right:10px;white-space:nowrap}
.navbar .nav a{flex:0 0 auto;background:none;border:0;border-radius:0;border-bottom:2px solid transparent;padding:14px 10px 12px;font-size:13px;font-weight:700;color:var(--muted);white-space:nowrap;text-decoration:none}
.navbar .nav a.here{background:none;color:var(--ink);border-bottom-color:var(--pink2)}
@media(max-width:560px){.navbar .brand{display:none}}
.top{background:radial-gradient(120% 90% at 50% 0%,#f8e4e7 0%,#fbf1ec 45%,var(--card) 75%);padding:52px 0 46px;position:relative;overflow:hidden}
.top:after{content:"";position:absolute;left:50%;bottom:0;width:56px;height:1px;background:var(--pink);transform:translateX(-50%)}
.top .kick{margin:0;font-size:12.5px;font-weight:700;letter-spacing:.14em;color:var(--pink-d)}
.top h1{font-family:"Hiragino Mincho ProN","Yu Mincho","Noto Serif JP",serif;font-weight:600;letter-spacing:.06em;font-size:clamp(25px,6.6vw,36px);line-height:1.6;margin:12px 0 0}
.top h1 .mark{background:none;color:var(--pink-d)}
.top .lead{font-size:14.5px;line-height:2;color:#6b5a52;margin-top:16px}

/* Slackに送る（10/3） */
.sendbox{background:#fff;border-radius:16px;padding:16px 18px;margin:16px 0 0;box-shadow:0 4px 14px rgba(90,61,72,.06)}
.sendbox>b{display:block;font-size:15.5px}
.sendbox .hint{display:block;font-size:13px;color:var(--muted);line-height:1.7}
.sendbox .slackbox{position:relative;background:#fffdfa;border:1px dashed var(--pink);border-radius:12px;padding:14px;font-size:14px;line-height:1.85;white-space:pre-wrap;margin-top:8px}
.slackbtn{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;border:0;border-radius:999px;background:#4A154B;color:#fff;font:inherit;font-weight:800;font-size:15.5px;padding:13px;margin:12px 0 0;cursor:pointer;box-shadow:0 8px 20px rgba(74,21,75,.22)}
.slackbtn svg{width:20px;height:20px;flex:0 0 auto}
.sendbox .sub{font-size:12.5px;color:var(--muted);text-align:center;margin:8px 0 0}

/* Zoom（ログインした人にだけリンクが入る・10/3） */
.zoomcard{background:#fff;border-radius:16px;padding:16px 18px;box-shadow:0 4px 14px rgba(90,61,72,.06);border-left:3px solid #2D8CFF;text-align:left}
.zoomcard b{display:block;font-size:15.5px}
.zoomcard .when{font-size:13px;color:var(--muted);line-height:1.8;margin:2px 0 8px}
.zoomcard .ids{font-size:13.5px;line-height:1.9;background:var(--card);border-radius:10px;padding:8px 12px}
.zoomcard .zbtn{display:block;text-align:center;background:#2D8CFF;color:#fff;border-radius:999px;padding:11px;margin-top:10px;font-weight:800;text-decoration:none}
.zoomcard .wait{font-size:13px;color:var(--muted)}
.zoomcard.ready .wait{display:none}
.zoomcard:not(.ready) .zbtn,.zoomcard:not(.ready) .ids{display:none}

/* フォルダの図解（10/3） */
.ftree{background:#fff;border-radius:16px;padding:10px 14px;box-shadow:0 4px 14px rgba(90,61,72,.06)}
.ftree .fr{display:grid;grid-template-columns:28px 1fr auto;grid-template-areas:"i b w" "i d d";column-gap:8px;align-items:center;padding:10px 0 10px 26px;border-top:1px dashed var(--line);position:relative}
.ftree .fr:before{content:"";position:absolute;left:10px;top:0;bottom:50%;border-left:1.5px solid var(--pink);border-bottom:1.5px solid var(--pink);width:10px;border-bottom-left-radius:6px}
.ftree .fr.root{padding-left:0;border-top:0}
.ftree .fr.root:before{display:none}
.ftree .fi{grid-area:i;font-size:20px;text-align:center}
.ftree .fr>b{grid-area:b;font-size:15px}
.ftree .fd{grid-area:d;font-size:12.5px;color:var(--muted);line-height:1.7}
.ftree .when{grid-area:w;font-size:11px;font-weight:800;color:var(--pink-d);background:var(--soft);border-radius:999px;padding:2px 9px;white-space:nowrap}
.ftree .fr.sub{padding-left:52px}.ftree .fr.sub:before{left:36px}
.top .tagline{margin:20px auto 0;display:inline-block;font-family:"Hiragino Mincho ProN","Yu Mincho","Noto Serif JP",serif;font-size:clamp(16px,4.6vw,20px);letter-spacing:.06em;color:var(--ink);border-top:1px solid rgba(217,160,172,.7);border-bottom:1px solid rgba(217,160,172,.7);padding:8px 14px;line-height:1.7}
.top .tagline b{color:var(--pink-d);font-weight:700}
.top .wrap{text-align:center}
.sendbox .sub.mention{text-align:left;background:var(--soft);border-radius:10px;padding:8px 12px;color:var(--ink);font-size:12.5px;line-height:1.7}
.slackbtn.insta{background:linear-gradient(90deg,#c0697f,#d98aa0);box-shadow:0 8px 20px rgba(192,105,127,.25)}
.ftree .fr.opt{opacity:.75}.ftree .fr.opt b{font-weight:600}
.flow3{display:flex;flex-direction:column;gap:10px}
.flow3 .f3{display:flex;gap:14px;background:#fff;border-radius:16px;padding:16px;box-shadow:0 4px 14px rgba(90,61,72,.06);text-align:left}
.flow3 .n{flex:0 0 auto;width:34px;height:34px;border-radius:50%;background:var(--pink2);color:#fff;font-family:Georgia,serif;font-size:18px;display:flex;align-items:center;justify-content:center}
.flow3 .dt{display:block;font-size:12.5px;font-weight:800;color:var(--pink-d);letter-spacing:.04em}
.flow3 b{font-size:16px}
.flow3 p{margin:4px 0 6px;font-size:14px;line-height:1.8}
.flow3 a{font-size:13.5px;font-weight:800;color:var(--pink-d);text-decoration:none}
.flow3 p b{font-size:inherit}
.prep .soon{margin-top:8px;font-size:12.5px;font-weight:700;color:var(--muted)}
.prep .soon span{display:inline-block;font-family:Georgia,serif;font-style:italic;letter-spacing:.12em;font-size:11px;color:#fff;background:linear-gradient(90deg,var(--pink),#E7C4C9);border-radius:999px;padding:2px 10px;margin-right:6px}
.prompt{padding-top:44px}
.check li a{color:inherit}

/* 自習版（body.jishu）：ライブ専用の表示を隠す（2026-10-25） */
.jishu .zoomcard,.jishu .live-only{display:none !important}
/* 自習版だけに出す言いかえ（2026-10-27） */
.jishu-only{display:none}
.jishu .jishu-only{display:revert !important}