:root{
  --ink:#1d2430; --paper:#f6f7f4; --panel:#ffffff;
  --accent:#3757c4; --accent-soft:#e6ebfa; --line:#d8dcd4;
  --ok:#2b7a4b; --err:#b1372f; --warn:#a8720f;
}
*{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--ink);
  font-family:'Zen Kaku Gothic New',sans-serif;line-height:1.6}
.wrap{max-width:1080px;margin:0 auto;padding:32px 20px 80px}
header{display:flex;align-items:baseline;justify-content:space-between;
  border-bottom:2px solid var(--ink);padding-bottom:14px;margin-bottom:26px;flex-wrap:wrap;gap:10px}
h1{font-family:'Space Grotesk',sans-serif;font-size:24px;margin:0;letter-spacing:.02em}
h1 a{color:inherit;text-decoration:none}
h1 span{color:var(--accent)}
nav{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
nav a{color:var(--ink);text-decoration:none;font-weight:700;font-size:14px;
  border-bottom:2px solid transparent;padding-bottom:2px}
nav a:hover,nav a.on{border-bottom-color:var(--accent);color:var(--accent)}
nav .who{font-size:12px;color:#667}
h2{font-size:19px;border-left:4px solid var(--accent);padding-left:10px;margin:30px 0 14px}
.flash{background:var(--accent-soft);border-left:4px solid var(--accent);
  padding:10px 14px;margin-bottom:20px;border-radius:0 6px 6px 0}
.flash.err{background:#fbf0ef;border-left-color:var(--err)}
fieldset{border:1px solid var(--line);background:var(--panel);
  border-radius:10px;padding:20px 22px;margin:0 0 22px}
legend{font-weight:700;padding:0 8px;font-size:15px}
label{display:block;font-weight:500;font-size:13px;margin-bottom:6px;color:#556}
textarea,input[type=text],input[type=email],input[type=password],select{
  width:100%;border:1px solid var(--line);border-radius:6px;
  padding:10px 12px;font:inherit;font-size:14px;background:#fff}
textarea:focus,input:focus,select:focus{outline:2px solid var(--accent);outline-offset:1px}
textarea{resize:vertical;min-height:72px}
.row{display:flex;gap:16px;flex-wrap:wrap}
.row>div{flex:1;min-width:160px}
.slots{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:640px){.slots{grid-template-columns:1fr}}
.slot{position:relative}
.slot .no{position:absolute;top:-9px;left:10px;background:var(--panel);
  padding:0 6px;font-family:'Space Grotesk',sans-serif;font-size:12px;font-weight:700;color:var(--accent)}
.slot textarea{min-height:56px;padding-top:14px}
.slot.hidden{display:none}
.submit-bar{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
button.primary,a.btn{display:inline-block;background:var(--accent);color:#fff;border:0;border-radius:8px;
  font:inherit;font-weight:700;font-size:15px;padding:12px 30px;cursor:pointer;text-decoration:none}
button.primary:hover,a.btn:hover{background:#2a45a0}
button.primary:disabled{background:#9aa6c9;cursor:wait}
button.small,a.small{font-size:12px;padding:6px 14px;border-radius:6px}
button.ghost{background:#fff;color:var(--ink);border:1px solid var(--line);
  font:inherit;font-size:12px;padding:6px 14px;border-radius:6px;cursor:pointer}
button.ghost:hover{border-color:var(--accent);color:var(--accent)}
button.danger{background:#fff;color:var(--err);border:1px solid var(--err);
  font:inherit;font-size:12px;padding:6px 14px;border-radius:6px;cursor:pointer}
button.danger:hover{background:var(--err);color:#fff}
.note{font-size:12px;color:#667}
#loading{display:none;align-items:center;gap:10px;font-weight:700;color:var(--accent)}
.spin{width:18px;height:18px;border:3px solid var(--accent-soft);
  border-top-color:var(--accent);border-radius:50%;animation:sp 1s linear infinite}
@keyframes sp{to{transform:rotate(360deg)}}
@media (prefers-reduced-motion:reduce){.spin{animation:none}}

/* 利用状況メーター */
.usage{background:var(--panel);border:1px solid var(--line);border-radius:10px;
  padding:14px 18px;margin-bottom:22px;display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.usage b{font-family:'Space Grotesk',sans-serif;font-size:20px}
.meter{flex:1;min-width:200px;height:10px;background:var(--accent-soft);border-radius:5px;overflow:hidden}
.meter i{display:block;height:100%;background:var(--accent)}
.meter i.warn{background:var(--warn)}
.meter i.full{background:var(--err)}

/* テーブル */
table.list{width:100%;border-collapse:collapse;background:var(--panel);
  border:1px solid var(--line);border-radius:10px;overflow:hidden;font-size:13px}
table.list th,table.list td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}
table.list th{background:#eef0ea;font-size:12px}
table.list tr:last-child td{border-bottom:0}
table.list td.num{text-align:right;font-family:'Space Grotesk',sans-serif}
.badge{display:inline-block;font-size:11px;font-weight:700;border-radius:4px;padding:2px 8px}
.badge.on{background:#e2f2e8;color:var(--ok)}
.badge.off{background:#fbf0ef;color:var(--err)}
.badge.admin{background:var(--accent-soft);color:var(--accent)}

/* プランカード */
.plans{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px}
.plan-card{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:20px;text-align:center}
.plan-card.current{outline:3px solid var(--accent)}
.plan-card h3{margin:0 0 6px;font-size:16px}
.plan-card .price{font-family:'Space Grotesk',sans-serif;font-size:26px;font-weight:700;margin:6px 0}
.plan-card .price small{font-size:12px;font-weight:400;color:#667}
.plan-card ul{list-style:none;padding:0;margin:10px 0 16px;font-size:13px;color:#556}
.plan-card li{padding:3px 0;border-bottom:1px dashed var(--line)}

/* 履歴 */
.batch{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:18px 20px;margin-bottom:26px}
.batch.focus{outline:3px solid var(--accent)}
.batch-head{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  border-bottom:1px dashed var(--line);padding-bottom:10px;margin-bottom:14px}
.batch-head .meta{font-size:13px;color:#667}
.batch-head .meta b{font-family:'Space Grotesk',sans-serif;color:var(--ink);font-size:15px}
.prompt{font-size:13px;background:#f2f4ef;border-radius:6px;padding:8px 12px;margin:0 0 14px;white-space:pre-wrap}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:14px}
.card{border:1px solid var(--line);border-radius:8px;overflow:hidden;background:#fff}
.card img{width:100%;aspect-ratio:1/1;object-fit:cover;display:block;background:#eee}
.card .cap{padding:8px 10px;font-size:12px}
.card .cap .no{font-family:'Space Grotesk',sans-serif;font-weight:700;color:var(--accent)}
.card .cap a{color:var(--accent)}
.card.err{border-color:var(--err)}
.card.err .box{aspect-ratio:1/1;display:flex;align-items:center;justify-content:center;
  color:var(--err);font-size:12px;padding:10px;text-align:center;background:#fbf0ef}
.topbar{display:flex;justify-content:flex-end;margin-bottom:18px}
a.dl,a.dl-all{display:inline-block;background:var(--accent);color:#fff;text-decoration:none;
  font-weight:700;font-size:13px;padding:8px 18px;border-radius:6px}
a.dl:hover,a.dl-all:hover{background:#2a45a0}
a.dl-all{background:var(--ink)}
.empty{text-align:center;color:#889;padding:60px 0}

/* 認証フォーム */
.auth{max-width:420px;margin:40px auto}
.auth fieldset{padding:28px}
.auth .field{margin-bottom:16px}
.auth .links{text-align:center;font-size:13px;margin-top:14px}
.auth .links a{color:var(--accent)}

/* 請求サマリー */
.bill-summary{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin-bottom:24px}
.bill-box{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:16px;text-align:center}
.bill-box .lbl{font-size:12px;color:#667}
.bill-box .val{font-family:'Space Grotesk',sans-serif;font-size:24px;font-weight:700}
.bill-box.total{outline:2px solid var(--accent)}
.bill-box.total .val{color:var(--accent)}

/* 添付ドロップゾーン */
.dropzone{border:2px dashed var(--line);border-radius:10px;background:#fbfcf9;
  padding:22px;text-align:center;cursor:pointer;transition:border-color .15s,background .15s}
.dropzone:hover,.dropzone.over{border-color:var(--accent);background:var(--accent-soft)}
.dropzone p{margin:4px 0}
.dz-preview{display:flex;align-items:center;gap:16px;text-align:left;justify-content:center;flex-wrap:wrap}
.dz-preview img{max-width:160px;max-height:160px;border-radius:8px;border:1px solid var(--line);background:#fff}
.dz-info{display:flex;flex-direction:column;gap:8px;align-items:flex-start}
.dz-info span:first-child{font-weight:700;word-break:break-all}

/* 履歴: 元画像表示 */
.source-thumb{display:flex;align-items:center;gap:10px;font-size:12px;color:#667;margin:0 0 14px}
.source-thumb img{width:64px;height:64px;object-fit:cover;border-radius:6px;border:1px solid var(--line)}