/* ===== 7日間チャレンジ お題サイト 共通CSS ===== */
:root{
  --pink:#D88B8B; --pink-deep:#B8696F; --pink-light:#E8B4B8; --pink-pale:#F5DBDB;
  --peach:#F4D4C4; --coral:#D9956A; --cream:#FBF6EF; --ivory:#FAF5EE;
  --berry:#5A3D48; --dark:#3A2530; --gray:#9A8A8E; --gray-line:#E8DFE3;
  --white:#fff; --yellow:#F0DCA0;
  --grad:linear-gradient(135deg,#D88B8B 0%,#D9956A 100%);
  --grad-soft:linear-gradient(135deg,#F5DBDB 0%,#FAE5D5 100%);
  --shadow-soft:0 4px 24px rgba(90,61,72,.08);
  --shadow:0 12px 40px rgba(90,61,72,.12);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Zen Kaku Gothic New','Hiragino Kaku Gothic ProN','Noto Sans JP',sans-serif;background:var(--ivory);color:var(--dark);line-height:1.85;font-size:15px;font-weight:500;letter-spacing:.03em;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
.maru{font-family:'Zen Maru Gothic',sans-serif}
.en{font-family:'Cormorant Garamond',serif;letter-spacing:.12em}
.wrap{max-width:720px;margin:0 auto;padding:0 20px}

/* ===== header ===== */
.site-header{background:var(--grad);color:#fff;text-align:center;padding:26px 20px;box-shadow:var(--shadow-soft)}
.site-header .brand{font-family:'Cormorant Garamond',serif;font-style:italic;letter-spacing:.32em;font-size:12px;opacity:.95;text-transform:uppercase}
.site-header .site-title{font-family:'Zen Maru Gothic',sans-serif;font-weight:700;font-size:clamp(18px,4.5vw,23px);margin-top:6px;letter-spacing:.06em}

/* ===== day nav ===== */
.day-nav{display:flex;gap:7px;justify-content:center;flex-wrap:wrap;padding:16px 20px;background:var(--white);border-bottom:1px solid var(--gray-line)}
.day-nav a{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:'Cormorant Garamond',serif;font-size:16px;font-weight:600;background:var(--cream);color:var(--berry);border:1.5px solid var(--gray-line);transition:.2s}
.day-nav a:hover{border-color:var(--pink);color:var(--pink-deep)}
.day-nav a.active{background:var(--grad);color:#fff;border-color:transparent;box-shadow:var(--shadow-soft)}
.day-nav a.locked{opacity:.4;pointer-events:none}

/* ===== intro (top) ===== */
.intro{text-align:center;padding:48px 0 8px}
.intro .lead{font-family:'Zen Maru Gothic',sans-serif;font-size:clamp(20px,5vw,26px);font-weight:700;color:var(--berry);line-height:1.6;margin-bottom:16px}
.intro .lead .pink{background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.intro p{color:var(--gray);font-size:14px;max-width:560px;margin:0 auto}
.goal-banner{background:var(--grad-soft);border-radius:20px;padding:26px 24px;margin:32px 0;text-align:center;box-shadow:var(--shadow-soft)}
.goal-banner .label{font-family:'Cormorant Garamond',serif;font-style:italic;color:var(--pink-deep);letter-spacing:.2em;font-size:13px;margin-bottom:8px}
.goal-banner p{color:var(--berry);font-weight:700;font-size:15px;line-height:1.8}

/* ===== section ===== */
.section{padding:40px 0}
.section-title{font-family:'Zen Maru Gothic',sans-serif;font-weight:700;font-size:20px;color:var(--berry);text-align:center;margin-bottom:8px;letter-spacing:.04em}
.section-sub{text-align:center;color:var(--gray);font-size:13px;margin-bottom:32px}

/* ===== prep cards ===== */
.prep-grid{display:grid;gap:14px}
@media(min-width:620px){.prep-grid{grid-template-columns:repeat(3,1fr)}}
.prep-card{background:var(--white);border-radius:18px;padding:24px 20px;text-align:center;box-shadow:var(--shadow-soft);border:1px solid var(--gray-line)}
.prep-card .ic{width:48px;height:48px;border-radius:14px;background:var(--grad-soft);display:flex;align-items:center;justify-content:center;font-size:24px;margin:0 auto 12px}
.prep-card h3{font-size:15px;color:var(--berry);font-weight:900;margin-bottom:6px}
.prep-card p{font-size:12.5px;color:var(--gray);line-height:1.7}
a.prep-card{cursor:pointer;transition:transform .25s,box-shadow .25s,border-color .25s}
a.prep-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--pink-light)}
.prep-link{display:inline-block;margin-top:12px;font-size:11px;font-weight:700;color:var(--pink-deep);letter-spacing:.04em}

/* ===== day map ===== */
.daymap{display:grid;gap:12px}
.daycard{display:grid;grid-template-columns:64px 1fr auto;gap:16px;align-items:center;background:var(--white);border-radius:16px;padding:18px 20px;box-shadow:var(--shadow-soft);border:1px solid var(--gray-line);transition:.25s}
.daycard:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--pink-light)}
.daycard.locked{opacity:.55}
.daycard .dnum{text-align:center}
.daycard .dnum .l{font-family:'Cormorant Garamond',serif;font-size:11px;letter-spacing:.2em;color:var(--pink);display:block}
.daycard .dnum .n{font-family:'Cormorant Garamond',serif;font-size:30px;font-weight:700;color:var(--berry);line-height:1}
.daycard .dbody .dt{font-weight:900;color:var(--berry);font-size:15px;margin-bottom:3px}
.daycard .dbody .dd{font-size:12px;color:var(--gray)}
.daycard .darrow{color:var(--pink);font-size:20px;font-weight:700}
.daycard .dtag{font-size:10px;color:var(--gray);border:1px solid var(--gray-line);border-radius:99px;padding:3px 10px}

/* ===== day page header ===== */
.day-hero{text-align:center;padding:44px 0 8px}
.day-hero .deyebrow{font-family:'Cormorant Garamond',serif;font-style:italic;letter-spacing:.25em;color:var(--pink);font-size:14px}
.day-hero h1{font-family:'Zen Maru Gothic',sans-serif;font-weight:700;font-size:clamp(22px,5.5vw,30px);color:var(--berry);margin:10px 0 6px;letter-spacing:.04em}
.day-hero .ddate{font-size:13px;color:var(--gray);letter-spacing:.08em}

/* ===== video ===== */
.video-box{margin:24px 0;background:var(--white);border:1px solid var(--gray-line);border-radius:18px;padding:20px;box-shadow:var(--shadow-soft)}
.video-box .vh{font-weight:900;color:var(--berry);font-size:14px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.video-embed{position:relative;width:100%;padding-top:56.25%;border-radius:12px;overflow:hidden;background:var(--cream)}
.video-embed iframe{position:absolute;top:0;left:0;width:100%;height:100%;border:0}
.video-ph{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:6px;color:var(--gray);font-size:13px;text-align:center;padding:20px}
.video-ph span{font-size:11px}

/* ===== help / 困ったとき ===== */
.help-intro{background:var(--grad-soft);border-radius:18px;padding:24px;margin:24px 0 8px;box-shadow:var(--shadow-soft)}
.help-intro .hi-h{font-family:'Zen Maru Gothic',sans-serif;font-weight:700;color:var(--berry);font-size:17px;margin-bottom:10px}
.help-intro p{font-size:14px;color:var(--dark);line-height:1.9}
.help-intro strong{color:var(--pink-deep)}
.help-item{margin:34px 0;padding-top:28px;border-top:1px solid var(--gray-line)}
.help-item:first-of-type{border-top:none;padding-top:8px}
.help-q{font-family:'Zen Maru Gothic',sans-serif;font-weight:700;font-size:17px;color:var(--berry);margin-bottom:12px;display:flex;gap:10px;align-items:flex-start;line-height:1.5}
.help-q .qn{flex-shrink:0;width:28px;height:28px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;font-family:'Cormorant Garamond',serif;font-weight:700;margin-top:2px}
.help-a{font-size:14px;color:var(--dark);line-height:1.9;margin-bottom:8px}
.help-a strong{color:var(--pink-deep)}
.prompt-cap{font-size:12px;color:var(--gray);font-weight:700;margin:16px 0 4px}
.backlink{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--pink-deep);font-weight:700;margin:20px 0}

/* ===== goal box ===== */
.goal-box{background:var(--grad-soft);border-radius:18px;padding:22px 24px;margin:28px 0;box-shadow:var(--shadow-soft)}
.goal-box .gh{display:flex;align-items:center;gap:8px;font-weight:900;color:var(--berry);font-size:14px;margin-bottom:6px}
.goal-box p{color:var(--dark);font-size:14px;line-height:1.8}

/* ===== steps ===== */
.steps{list-style:none;counter-reset:s;display:grid;gap:14px;margin:8px 0}
.steps li{counter-increment:s;display:grid;grid-template-columns:38px 1fr;gap:14px;align-items:start;background:var(--white);border-radius:14px;padding:18px 18px;box-shadow:var(--shadow-soft);border:1px solid var(--gray-line)}
.steps li::before{content:counter(s);width:30px;height:30px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-family:'Cormorant Garamond',serif;font-weight:700;font-size:16px}
.steps li .stt{font-weight:700;color:var(--berry);margin-bottom:2px}
.steps li .sd{font-size:13px;color:var(--gray);line-height:1.75}

/* ===== prompt box ===== */
.prompt-box{background:var(--berry);border-radius:16px;padding:20px;margin:18px 0;position:relative}
.prompt-box .ph{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.prompt-box .ph .pl{color:var(--pink-light);font-family:'Cormorant Garamond',serif;font-style:italic;letter-spacing:.1em;font-size:13px}
.copy-btn{background:rgba(255,255,255,.15);color:#fff;border:1px solid rgba(255,255,255,.4);border-radius:99px;padding:7px 16px;font-size:12px;font-weight:700;cursor:pointer;font-family:inherit;transition:.2s}
.copy-btn:hover{background:rgba(255,255,255,.28)}
.prompt-text{color:#fff;font-size:13.5px;line-height:1.9;white-space:pre-wrap;font-family:'Zen Kaku Gothic New',monospace;letter-spacing:.02em}
.prompt-text .fill{color:var(--yellow);font-weight:700}

/* ===== check ===== */
.check-box{background:var(--white);border:2px dashed var(--pink-light);border-radius:16px;padding:22px 24px;margin:24px 0}
.check-box .ch{font-weight:900;color:var(--berry);margin-bottom:12px;font-size:14px}
.check-list{list-style:none;display:grid;gap:10px}
.check-list li{display:grid;grid-template-columns:22px 1fr;gap:10px;font-size:13.5px;color:var(--dark);cursor:pointer;transition:color .2s;user-select:none}
.check-list li::before{content:'☐';color:var(--pink);font-size:16px}
.check-list li.done{color:var(--gray)}
.check-list li.done::before{content:'☑';color:var(--pink-deep)}
.check-progress{text-align:center;font-size:13px;color:var(--pink-deep);font-weight:700;margin-top:16px}
.login-note{text-align:center;font-size:13px;color:var(--gray);background:var(--cream);border-radius:10px;padding:14px}
.login-note a{color:var(--pink-deep);font-weight:700}

/* ===== share ===== */
.share-box{background:var(--grad);color:#fff;border-radius:20px;padding:28px 24px;text-align:center;margin:28px 0;box-shadow:var(--shadow)}
.share-box h3{font-family:'Zen Maru Gothic',sans-serif;font-size:17px;font-weight:700;margin-bottom:8px}
.share-box p{font-size:13px;opacity:.95;margin-bottom:18px}
.share-box .btn{display:inline-flex;align-items:center;gap:8px;background:#fff;color:var(--pink-deep);font-weight:700;padding:13px 28px;border-radius:99px;font-size:14px;box-shadow:var(--shadow-soft)}

/* ===== page nav ===== */
.pagenav{display:flex;justify-content:space-between;gap:12px;margin:36px 0 8px}
.pagenav a{flex:1;background:var(--white);border:1px solid var(--gray-line);border-radius:14px;padding:16px 18px;box-shadow:var(--shadow-soft);transition:.2s}
.pagenav a:hover{border-color:var(--pink);transform:translateY(-2px)}
.pagenav .dir{font-size:11px;color:var(--pink);font-family:'Cormorant Garamond',serif;letter-spacing:.15em}
.pagenav .ttl{font-size:13px;color:var(--berry);font-weight:700;margin-top:3px}
.pagenav .next{text-align:right}
.pagenav a.disabled{opacity:.4;pointer-events:none}

/* ===== footer ===== */
footer{background:var(--berry);color:rgba(255,255,255,.7);text-align:center;padding:36px 24px;font-size:11px;letter-spacing:.08em;margin-top:40px}
footer a{color:var(--pink-light);font-weight:600}

/* ===== form ===== */
.form-card{background:#fff;border-radius:18px;padding:28px 24px;box-shadow:var(--shadow-soft);border:1px solid var(--gray-line);margin:20px 0}
.form-field{margin-bottom:22px}
.form-field>label{display:block;font-weight:700;color:var(--berry);font-size:14px;margin-bottom:4px}
.form-field .req{color:var(--pink-deep);font-size:11px;margin-left:6px}
.form-field .hint{font-size:12px;color:var(--gray);font-weight:500;margin-bottom:8px;line-height:1.6}
.form-field input[type=text],.form-field textarea,.form-field select{width:100%;padding:12px 14px;border:1.5px solid var(--gray-line);border-radius:10px;font-family:inherit;font-size:14px;color:var(--dark);background:var(--cream)}
.form-field input:focus,.form-field textarea:focus,.form-field select:focus{outline:none;border-color:var(--pink)}
.form-field textarea{min-height:80px;resize:vertical}
.radio-group{display:grid;gap:10px;margin-top:4px}
.radio-group label{display:flex;align-items:flex-start;gap:9px;font-weight:500;color:var(--dark);font-size:14px;cursor:pointer;line-height:1.6}
.radio-group input{width:auto;margin-top:4px}
.submit-btn{width:100%;background:var(--grad);color:#fff;border:none;border-radius:99px;padding:16px;font-size:15px;font-weight:700;cursor:pointer;font-family:inherit;box-shadow:var(--shadow-soft)}
.submit-btn:hover{opacity:.95}
.submit-btn:disabled{opacity:.6;cursor:default}
.form-msg{text-align:center;padding:16px;border-radius:12px;margin-top:16px;font-weight:700;display:none;line-height:1.7}
.form-msg.ok{background:var(--pink-pale);color:var(--pink-deep);display:block}
.form-msg.err{background:#FCE4E4;color:#C0392B;display:block}

/* ===== admin ===== */
.admin-gate{max-width:360px;margin:30px auto}
.admin-card{background:#fff;border:1px solid var(--gray-line);border-radius:14px;padding:20px;margin-bottom:14px;box-shadow:var(--shadow-soft)}
.admin-card h3{font-size:16px;color:var(--berry);margin-bottom:10px;font-weight:900}
.admin-row{display:grid;grid-template-columns:92px 1fr;gap:8px;font-size:13px;padding:6px 0;border-bottom:1px dashed var(--gray-line)}
.admin-row .k{color:var(--pink-deep);font-weight:700}
.admin-row .v{color:var(--dark);white-space:pre-wrap;line-height:1.6}
.admin-log{background:var(--cream);border-radius:8px;padding:12px;margin-top:10px;font-size:12.5px;line-height:1.8}
.admin-meta{font-size:11px;color:var(--gray);margin-top:8px}