/* =========================================================
   サクッとAI髪型 — style.css
   ========================================================= */
:root{
  --bg:#f6f5f8;
  --ink:#241f2b;
  --sub:#6c6577;
  --line:#e7e3ee;
  --card:#ffffff;
  --accent:#b06ad6;       /* 髪・美容っぽい紫 */
  --accent-2:#ff7eb3;     /* ピンク差し色 */
  --accent-ink:#7a3aa0;
  --ok:#2bb673;
  --shadow:0 6px 24px rgba(60,30,80,.08);
  --radius:18px;
}
*{box-sizing:border-box}
[hidden]{display:none !important}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Hiragino Kaku Gothic ProN","Noto Sans JP",Meiryo,sans-serif;
  color:var(--ink);
  background:
    radial-gradient(1200px 600px at 80% -10%, #f6e6ff 0%, transparent 60%),
    radial-gradient(1000px 500px at -10% 10%, #ffe9f3 0%, transparent 55%),
    var(--bg);
  line-height:1.7;
  -webkit-text-size-adjust:100%;
}
.wrap{max-width:880px;margin:0 auto;padding:0 18px}

/* header */
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.82);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:58px}
.brand{display:flex;align-items:center;gap:8px;font-size:1.15rem}
.brand-mark{font-size:1.3rem}
.brand-name b{color:var(--accent-ink)}
.header-right{display:flex;align-items:center;gap:14px}
.cross-sell{display:flex;gap:14px;font-size:.82rem}
.cross-sell a{color:var(--sub);text-decoration:none}
.cross-sell a:hover{color:var(--accent-ink)}

/* credit badge */
.credit-badge{display:inline-flex;align-items:center;gap:6px;background:linear-gradient(135deg,#fbf0ff,#fff0f7);border:1.5px solid var(--accent);color:var(--accent-ink);border-radius:999px;padding:6px 14px;font-size:.85rem;cursor:pointer;transition:transform .1s}
.credit-badge:hover{transform:translateY(-1px)}
.credit-badge .credit-ico{color:var(--accent-2)}
.credit-badge b{font-size:1rem}
.credit-badge .credit-label{color:var(--sub);font-weight:400}
.btn-charge{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;border:none;border-radius:999px;padding:7px 16px;font-size:.85rem;font-weight:700;cursor:pointer;white-space:nowrap;box-shadow:0 4px 12px rgba(176,106,214,.3);transition:transform .1s}
.btn-charge:hover{transform:translateY(-1px)}

/* 使い方 */
.how{display:flex;align-items:stretch;justify-content:center;gap:10px;flex-wrap:wrap;margin:0 0 28px}
.how-step{display:flex;align-items:center;gap:11px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:13px 18px;box-shadow:var(--shadow);flex:1;min-width:210px;max-width:260px}
.how-num{flex:none;display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;font-weight:700}
.how-body{display:flex;flex-direction:column;line-height:1.4}
.how-body b{font-size:.95rem}
.how-body span{font-size:.76rem;color:var(--sub)}
.how-arrow{display:flex;align-items:center;color:var(--accent);font-size:1.2rem}
@media(max-width:560px){
  .how-arrow{transform:rotate(90deg)}
  .how-step{max-width:none}
}

/* hero */
.hero{text-align:center;padding:40px 0 26px}
.hero h1{font-size:1.9rem;line-height:1.4;margin:0 0 14px}
.hero h1 em{font-style:normal;background:linear-gradient(transparent 62%,#ffd6ec 62%);padding:0 2px}
.lead{color:var(--sub);margin:0 0 16px}
.privacy-note{display:inline-block;background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 16px;font-size:.85rem;color:var(--accent-ink);box-shadow:var(--shadow)}

/* cards */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;margin:0 0 20px;box-shadow:var(--shadow)}
.card h2{display:flex;align-items:center;gap:10px;font-size:1.18rem;margin:0 0 16px}
.step{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;font-size:.95rem;font-weight:700}
.hint{color:var(--sub);font-size:.82rem;margin:12px 0 0}

/* uploader */
.drop{position:relative;border:2px dashed var(--line);border-radius:16px;background:#faf8fd;min-height:220px;display:grid;place-items:center;cursor:pointer;overflow:hidden;transition:border-color .15s,background .15s}
.drop:hover{border-color:var(--accent);background:#fbf4ff}
.drop.dragover{border-color:var(--accent);background:#f7ecff}
.drop-empty{text-align:center;color:var(--sub);padding:28px}
.drop-icon{font-size:2.4rem;margin-bottom:8px}
.drop-empty small{color:#a59bb3}
#preview{max-width:100%;max-height:380px;display:block}
.btn-ghost{margin-top:12px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 18px;font-size:.85rem;color:var(--accent-ink);cursor:pointer}
.btn-ghost:hover{border-color:var(--accent)}

/* chips */
.grp-title{font-size:.95rem;margin:18px 0 10px;color:var(--ink)}
.grp-title small{color:var(--sub);font-weight:400;margin-left:6px}
.chips{display:flex;flex-wrap:wrap;gap:9px}
.chip{position:relative;border:1.5px solid var(--line);background:#fff;border-radius:999px;padding:9px 16px;font-size:.9rem;cursor:pointer;user-select:none;transition:all .12s;display:inline-flex;align-items:center;gap:7px}
.chip:hover{border-color:var(--accent)}
.chip[aria-pressed="true"]{border-color:var(--accent);background:linear-gradient(135deg,#fbf0ff,#fff0f7);color:var(--accent-ink);font-weight:600}
.chip[aria-pressed="true"]::after{content:"✓";font-size:.8rem}
.chip .swatch{width:14px;height:14px;border-radius:50%;border:1px solid rgba(0,0,0,.15);display:inline-block}

/* 自由入力 */
.custom-input{width:100%;border:1.5px solid var(--line);border-radius:12px;padding:12px 14px;font-size:.95rem;font-family:inherit;line-height:1.6;resize:vertical;background:#fff;color:var(--ink)}
.custom-input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(176,106,214,.12)}
.custom-input::placeholder{color:#b3aabf}

/* 枚数ステッパー */
.count-row{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.stepper{display:inline-flex;align-items:center;gap:2px;border:1.5px solid var(--line);border-radius:999px;padding:4px;background:#fff}
.stepper button{width:38px;height:38px;border:none;background:#f3eef8;color:var(--accent-ink);border-radius:50%;font-size:1.3rem;font-weight:700;cursor:pointer;line-height:1;transition:background .12s}
.stepper button:hover{background:#ecdcf7}
.stepper button:disabled{opacity:.35;cursor:not-allowed}
.count-val{min-width:56px;text-align:center}
.count-val b{font-size:1.5rem;color:var(--accent-ink)}
.count-val small{color:var(--sub);margin-left:2px}
.count-hint{font-size:.8rem;color:var(--sub)}

/* summary bar */
.summary-bar{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:22px;padding-top:18px;border-top:1px solid var(--line);flex-wrap:wrap}
.summary-text{font-size:.95rem}
.summary-text b{font-size:1.4rem;color:var(--accent-ink);margin:0 2px}
.summary-text small{display:block;color:var(--sub);font-size:.78rem}

/* buttons */
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;border:none;border-radius:999px;padding:13px 26px;font-size:1rem;font-weight:700;cursor:pointer;box-shadow:0 6px 16px rgba(176,106,214,.35);transition:transform .1s,opacity .15s;text-decoration:none;display:inline-block}
.btn-primary:hover{transform:translateY(-1px)}
.btn-primary:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

/* result grid */
.result-note{color:var(--sub);font-size:.88rem;margin:0 0 16px}
.result-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px}
.result-card{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#faf8fd;position:relative}
.result-card .thumb{position:relative;aspect-ratio:3/4;overflow:hidden;cursor:pointer;background:#eee}
.result-card .thumb img{width:100%;height:100%;object-fit:cover;display:block}
.result-card .label{padding:8px 10px;font-size:.8rem;line-height:1.4}
.result-card .label b{display:block;color:var(--ink)}
.result-card .label span{color:var(--sub)}
.result-card.is-loading .thumb{display:grid;place-items:center}
.spinner{width:26px;height:26px;border:3px solid var(--line);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
/* クレジット不足プレースホルダ */
.result-card.needcredit .thumb{background:repeating-linear-gradient(-45deg,#efe7f6 0 14px,#e7ddf0 14px 28px);display:grid;place-items:center}
.result-card.needcredit .thumb::after{content:"🔒 要クレジット";color:var(--accent-ink);font-size:.8rem;font-weight:700}

/* credit notice (結果下の案内) */
.credit-notice{margin-top:22px;border:2px solid var(--accent);border-radius:16px;background:linear-gradient(135deg,#fbf0ff,#fff0f7);padding:22px;text-align:center}
.credit-notice p{color:var(--ink);font-size:.95rem;margin:0 0 14px}
.credit-notice b{color:var(--accent-ink)}

/* 購入モーダル */
.modal{position:fixed;inset:0;z-index:70;background:rgba(20,12,28,.6);display:grid;place-items:center;padding:20px}
.modal-card{background:#fff;border-radius:20px;padding:26px;max-width:440px;width:100%;position:relative;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.modal-card h3{margin:0 0 8px;font-size:1.3rem}
.modal-lead{color:var(--sub);font-size:.9rem;margin:0 0 18px}
.modal-lead b{color:var(--accent-ink);font-size:1.05rem}
.modal-close{position:absolute;top:14px;right:16px;background:#f3eef8;border:none;width:34px;height:34px;border-radius:50%;font-size:1rem;cursor:pointer;color:var(--sub)}
.modal-fine{font-size:.75rem;color:#a59bb3;margin:16px 0 0;text-align:center}

/* FAQ */
.faq h2{margin:0 0 8px}
.faq details{border-bottom:1px solid var(--line);padding:14px 2px}
.faq details:last-child{border-bottom:none}
.faq summary{cursor:pointer;font-weight:700;color:var(--ink);list-style:none;display:flex;align-items:center;gap:10px;font-size:.98rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"Q";flex:none;width:24px;height:24px;border-radius:50%;background:#f3eef8;color:var(--accent-ink);font-size:.8rem;display:grid;place-items:center}
.faq details[open] summary{color:var(--accent-ink)}
.faq details p{margin:10px 0 2px 34px;color:var(--sub);font-size:.92rem;line-height:1.7}

/* クーポン */
.coupon{margin-top:18px;padding-top:16px;border-top:1px dashed var(--line)}
.coupon label{display:block;font-size:.82rem;color:var(--sub);margin-bottom:8px}
.coupon-row{display:flex;gap:8px}
.coupon-input{flex:1;border:1.5px solid var(--line);border-radius:10px;padding:10px 12px;font-size:.95rem;font-family:inherit;text-transform:uppercase;letter-spacing:.04em;background:#fff;color:var(--ink)}
.coupon-input:focus{outline:none;border-color:var(--accent)}
.btn-coupon{flex:none;background:#f3eef8;color:var(--accent-ink);border:1.5px solid var(--line);border-radius:10px;padding:10px 18px;font-size:.9rem;font-weight:700;cursor:pointer;transition:background .12s}
.btn-coupon:hover{background:#ecdcf7;border-color:var(--accent)}
.btn-coupon:disabled{opacity:.5;cursor:not-allowed}
.bundles{display:flex;flex-direction:column;gap:11px}
.bundle{display:flex;align-items:center;justify-content:space-between;gap:12px;border:1.5px solid var(--line);border-radius:14px;padding:14px 18px;cursor:pointer;transition:all .12s;background:#fff;position:relative;text-align:left}
.bundle:hover{border-color:var(--accent);background:#fdf8ff}
.bundle.popular{border-color:var(--accent);background:linear-gradient(135deg,#fbf0ff,#fff0f7)}
.bundle-credits{font-size:1.1rem;font-weight:700}
.bundle-credits small{display:block;font-weight:400;font-size:.72rem;color:var(--sub)}
.bundle-price{font-size:1.25rem;font-weight:700;color:var(--accent-ink)}
.bundle-tag{position:absolute;top:-9px;left:16px;background:var(--accent);color:#fff;font-size:.66rem;font-weight:700;padding:2px 10px;border-radius:999px}

/* lightbox */
.lightbox{position:fixed;inset:0;z-index:60;background:rgba(20,12,28,.88);display:grid;place-items:center;gap:18px;grid-auto-flow:row;padding:24px}
.lightbox img{max-width:92vw;max-height:74vh;border-radius:12px;box-shadow:0 10px 40px rgba(0,0,0,.5)}
.lightbox-close{position:absolute;top:16px;right:18px;background:rgba(255,255,255,.15);color:#fff;border:none;width:42px;height:42px;border-radius:50%;font-size:1.2rem;cursor:pointer}

/* toast */
.toast{position:fixed;left:50%;bottom:28px;transform:translateX(-50%);background:var(--ink);color:#fff;padding:12px 22px;border-radius:999px;font-size:.9rem;z-index:80;box-shadow:0 8px 24px rgba(0,0,0,.25);animation:pop .2s ease}
@keyframes pop{from{opacity:0;transform:transl(-50%,8px)}}

/* footer */
.site-footer{border-top:1px solid var(--line);margin-top:40px;padding:24px 0 40px;text-align:center;color:var(--sub);font-size:.8rem}
.site-footer .links a{color:var(--accent-ink);text-decoration:none;margin:0 4px}

@media(max-width:560px){
  .hero h1{font-size:1.5rem}
  .cross-sell{display:none}
  .summary-bar{flex-direction:column;align-items:stretch}
  .summary-bar .btn-primary{width:100%}
  /* ヘッダーをモバイルで1行に収める */
  .wrap{padding:0 12px}
  .site-header .wrap{height:54px;gap:8px}
  .brand{gap:5px;min-width:0;flex:1}
  .brand-name{white-space:nowrap;font-size:.98rem;overflow:hidden;text-overflow:ellipsis}
  .brand-mark{font-size:1.15rem;flex:none}
  .header-right{gap:7px;flex:none}
  .credit-badge{padding:6px 10px}
  .credit-badge .credit-label{display:none}   /* 「クレジット」を隠し ✦N だけ */
  .btn-charge{padding:7px 13px}
}
@media(max-width:360px){
  .brand-name{font-size:.88rem}
  .btn-charge{padding:7px 11px;font-size:.8rem}
}