:root{
  --paper:#f7f4ec;
  --paper-2:#fffdf8;
  --ink:#1c1a17;
  --ink-soft:#5b554c;
  --line:#e2dccd;
  --seal:#b5402f;
  --seal-dark:#8f3022;
  --shadow:0 1px 3px rgba(40,32,20,.10),0 6px 18px rgba(40,32,20,.06);
  --radius:10px;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Noto Sans JP","Yu Gothic",sans-serif;
  line-height:1.7;
  -webkit-text-size-adjust:100%;
}
h1,h2,h3{
  font-family:"Hiragino Mincho ProN","Yu Mincho","Noto Serif JP",serif;
  font-weight:600;
  letter-spacing:.02em;
}
a{color:var(--seal-dark);text-decoration:none}
a:hover{text-decoration:underline}

/* ===== ヘッダー ===== */
.site-header{
  background:var(--paper-2);
  border-bottom:2px solid var(--line);
  position:sticky;top:0;z-index:20;
}
.header-inner{
  display:flex;align-items:center;gap:8px;
  max-width:1100px;margin:0 auto;padding:.5rem 16px;
  flex-wrap:nowrap;   /* PCは1行固定 */
}
.brand{
  font-family:"Hiragino Mincho ProN","Yu Mincho",serif;
  font-weight:700;color:var(--ink);
  display:flex;align-items:center;gap:.4rem;
  flex-shrink:0;text-decoration:none;
  line-height:1.2;
}
.brand:hover{text-decoration:none}
.brand-text{display:flex;flex-direction:column}
.brand-main{font-size:1.05rem}
.brand-sub{font-size:.65rem;color:var(--ink-soft);font-weight:400;white-space:nowrap}
.seal{
  display:inline-grid;place-items:center;
  width:1.55rem;height:1.55rem;border-radius:4px;
  background:var(--seal);color:#fff;font-size:.88rem;
  flex-shrink:0;
}

/* ===== ナビゲーション（PC） ===== */
.site-nav{
  display:flex;align-items:center;gap:2px;
  margin-left:auto;flex-wrap:nowrap;
  overflow:hidden;
}
.nav-btn{
  display:inline-block;
  padding:4px 8px;
  border-radius:999px;
  font-size:.78rem;font-weight:500;
  color:var(--ink-soft);
  border:1px solid transparent;
  text-decoration:none;
  white-space:nowrap;
  transition:background .12s,color .12s,border-color .12s;
}
.nav-btn:hover{
  background:var(--paper-1);
  border-color:var(--line);
  color:var(--ink);
  text-decoration:none;
}
.nav-btn.nav-active{
  background:var(--seal-light,#f5ede9);
  border-color:var(--seal);
  color:var(--seal-dark);
  font-weight:600;
}
.nav-btn.nav-btn-sm{
  font-size:.72rem;
  padding:3px 7px;
}
.nav-btn.nav-btn-ghost{
  color:var(--ink-soft);
  border-color:var(--line);
}
.nav-btn.nav-btn-ghost:hover{color:var(--seal-dark)}
.nav-btn.nav-btn-accent{
  background:var(--seal);color:#fff !important;
  border-color:var(--seal);font-weight:600;
}
.nav-btn.nav-btn-accent:hover{background:var(--seal-dark);border-color:var(--seal-dark);text-decoration:none}
.nav-divider{
  display:inline-block;width:1px;height:16px;
  background:var(--line);margin:0 2px;flex-shrink:0;
}
.nav-name{
  font-size:.82rem;color:var(--ink-soft);
  white-space:nowrap;padding:0 2px;
}

/* ===== ハンバーガーボタン（スマホのみ表示） ===== */
.nav-toggle{
  display:none;
  align-items:center;justify-content:center;
  width:40px;height:40px;
  flex-shrink:0;margin-left:auto;
  background:none;
  border:1.5px solid var(--line);
  border-radius:8px;
  cursor:pointer;
  color:var(--ink);
  padding:0;
}
.nav-toggle:hover{background:var(--paper-1)}
.nav-toggle[aria-expanded="true"] .hamburger-icon{display:none}
.nav-toggle[aria-expanded="true"] .close-icon{display:block !important}

.btn-accent{
  background:var(--seal);color:#fff !important;
  padding:.4rem .8rem;border-radius:999px;font-weight:600;
}
.btn-accent:hover{background:var(--seal-dark);text-decoration:none}

/* ===== レイアウト ===== */
.container{max-width:1000px;margin:0 auto;padding:1.4rem 1.1rem 3rem}
.site-footer{text-align:center;color:var(--ink-soft);padding:2rem 1rem;border-top:1px solid var(--line)}

/* ===== カード・フォーム ===== */
.card{
  background:var(--paper-2);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow);
  padding:1.4rem;margin:0 auto;max-width:460px;
}
.field{margin-bottom:1rem}
.field label{display:block;font-weight:600;margin-bottom:.35rem;font-size:.92rem}
input[type=text],input[type=password],input[type=date],select,textarea{
  width:100%;padding:.6rem .7rem;border:1px solid var(--line);
  border-radius:8px;background:#fff;font-size:1rem;font-family:inherit;color:var(--ink);
}
textarea{min-height:90px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:2px solid var(--seal);outline-offset:1px;border-color:transparent}

.btn{
  display:inline-block;background:var(--ink);color:#fff;border:0;
  padding:.65rem 1.3rem;border-radius:8px;font-size:1rem;font-weight:600;
  cursor:pointer;font-family:inherit;
}
.btn:hover{background:#000}
.btn.full{width:100%}
.btn.seal{background:var(--seal)}
.btn.seal:hover{background:var(--seal-dark)}
.btn.ghost{background:#fff;color:var(--ink);border:1px solid var(--line)}
.btn:disabled{opacity:.55;cursor:not-allowed}

.alert{padding:.7rem .9rem;border-radius:8px;margin-bottom:1rem;font-size:.92rem}
.alert.error{background:#fbeae7;color:var(--seal-dark);border:1px solid #f0c9c2}
.alert.info{background:#eef3ee;color:#3a5a3a;border:1px solid #cfe0cf}

.muted{color:var(--ink-soft)}
.page-head{display:flex;align-items:baseline;justify-content:space-between;gap:1rem;flex-wrap:wrap;margin-bottom:1.2rem}
.page-head h1{margin:.2rem 0}

/* ===== フィルタ ===== */
.filters{display:flex;gap:.6rem;flex-wrap:wrap;margin-bottom:1.4rem;align-items:end}
.filters .field{margin:0;min-width:130px}
.filters select{padding:.45rem .6rem}

/* ===== 作品グリッド ===== */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:1rem}
.work-card{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);transition:transform .12s ease,box-shadow .12s ease;
}
.work-card:hover{transform:translateY(-2px);box-shadow:0 4px 10px rgba(40,32,20,.14),0 12px 28px rgba(40,32,20,.10);text-decoration:none}
.work-card .thumb{position:relative;aspect-ratio:3/4;background:#efeadd;overflow:hidden}
.work-card .thumb img{width:100%;height:100%;object-fit:cover;display:block}
.work-card .thumb .count{position:absolute;right:.4rem;bottom:.4rem;background:rgba(28,26,23,.78);color:#fff;font-size:.72rem;padding:.1rem .45rem;border-radius:999px}
.work-card .body{padding:.6rem .7rem .8rem}
.work-card .title{font-weight:600;color:var(--ink);font-size:.98rem;line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.work-card .meta{display:flex;justify-content:space-between;align-items:center;margin-top:.35rem;font-size:.78rem;color:var(--ink-soft)}
.tag{display:inline-block;background:#efeadd;color:var(--ink-soft);border-radius:999px;padding:.05rem .55rem;font-size:.75rem}
.tag.seal{background:var(--seal);color:#fff}

/* ===== 投稿フォーム ===== */
.upload-wrap{max-width:560px;margin:0 auto}
.photo-buttons{display:flex;gap:.7rem;flex-wrap:wrap;margin:.4rem 0 1rem}
.previews{display:grid;grid-template-columns:repeat(auto-fill,minmax(96px,1fr));gap:.6rem;margin-bottom:1rem}
.thumbprev{position:relative;aspect-ratio:1;border-radius:8px;overflow:hidden;border:1px solid var(--line);background:#efeadd}
.thumbprev img{width:100%;height:100%;object-fit:cover}
.thumb-remove{position:absolute;top:3px;right:3px;width:22px;height:22px;border:0;border-radius:50%;
  background:rgba(28,26,23,.8);color:#fff;font-size:14px;line-height:22px;cursor:pointer;padding:0}
#count{font-weight:600}

/* ===== 作品詳細 ===== */
.detail-images{display:flex;flex-direction:column;gap:1rem;margin:1rem 0}
.detail-images img{width:100%;border-radius:var(--radius);border:1px solid var(--line);box-shadow:var(--shadow)}
.detail-meta{display:flex;gap:.6rem;flex-wrap:wrap;align-items:center;color:var(--ink-soft);margin:.3rem 0 1rem}
.note-box{background:var(--paper-2);border:1px solid var(--line);border-left:4px solid var(--seal);border-radius:8px;padding:.8rem 1rem;white-space:pre-wrap}

/* ===== マイページ（月別タイムライン） ===== */
.month-group{margin-bottom:1.8rem}
.month-head{font-size:1.1rem;border-bottom:2px solid var(--seal);display:inline-block;padding-bottom:.2rem;margin-bottom:.9rem}

/* ===== 管理テーブル ===== */
.table{width:100%;border-collapse:collapse;background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.table th,.table td{padding:.6rem .7rem;text-align:left;border-bottom:1px solid var(--line);font-size:.92rem}
.table th{background:#efeadd;font-weight:600}
.table tr:last-child td{border-bottom:0}
.role-badge{font-size:.75rem;padding:.1rem .5rem;border-radius:999px;background:#efeadd;color:var(--ink-soft)}
.role-badge.admin{background:var(--seal);color:#fff}
.inline-form{display:inline}

.empty{text-align:center;color:var(--ink-soft);padding:3rem 1rem}

@media (max-width:680px){
  /* ヘッダーはスマホで折り返し可能に */
  .header-inner{flex-wrap:wrap}
  /* ハンバーガーボタンを表示 */
  .nav-toggle{
    display:grid;    /* flex/blockより確実 */
  }

  /* ナビを非表示（初期状態）→ openクラスで表示 */
  .site-nav{
    display:none;
    width:100%;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:8px 0 12px;
    border-top:1px solid var(--line);
    margin-top:6px;
    order:99;
  }
  .site-nav.open{display:flex}

  .nav-btn{padding:11px 14px;font-size:.95rem;border-radius:10px}
  .nav-btn.nav-btn-sm{padding:11px 14px;font-size:.9rem}
  .nav-divider{width:100%;height:1px;margin:4px 0;background:var(--line);display:block}
  .nav-name{padding:6px 14px;font-size:.88rem}
  .grid{grid-template-columns:repeat(auto-fill,minmax(45%,1fr))}
}

/* ===== v2 認証画面の追加スタイル ===== */
.wrap{max-width:920px;margin:0 auto;padding:0 16px}
.wide-wrap{max-width:1400px;margin:0 auto;padding:0 16px}
.main{padding:24px 16px 48px}
.narrow{max-width:440px;margin-left:auto;margin-right:auto}
.ok{background:#eef6ec;border-left:3px solid #5a8a4e;color:#37623a;padding:9px 12px;border-radius:0 6px 6px 0;margin:10px 0}
.btn-mini{display:inline-block;background:var(--seal);color:#fff;padding:4px 12px;border-radius:999px;font-size:.85rem}
.btn-mini:hover{text-decoration:none;background:var(--seal-dark)}
.btn-link{background:none;border:0;color:var(--seal-dark);cursor:pointer;font-size:.9rem;padding:6px 0;text-decoration:underline}
.check{display:flex;align-items:center;gap:8px;font-weight:400;margin:8px 0 12px}
.check input{width:auto;margin:0}
form.inline{display:inline;margin:0}

/* ===== v2 教室画面の追加スタイル ===== */
.page-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;flex-wrap:wrap}
.page-head h1,.page-head h2{margin:.2em 0}
.badge{display:inline-block;color:#fff;font-size:.7rem;padding:1px 8px;border-radius:999px;vertical-align:middle;margin-left:4px}
.role{color:var(--ink-soft);font-size:.8rem;margin-left:6px}
.path{font-size:.8rem}
.small{font-size:.78rem}
ul.list{list-style:none;padding:0;margin:0}
ul.list li{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:8px 0;border-top:1px solid var(--line)}
ul.list li:first-child{border-top:0}
.searchbar{display:flex;gap:8px}
.searchbar input{flex:1}
.row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.row input[type=email]{flex:1;min-width:200px}
.tbl{width:100%;border-collapse:collapse;margin:6px 0}
.tbl th,.tbl td{text-align:left;padding:8px 6px;border-bottom:1px solid var(--line);vertical-align:top}
.tbl th{font-size:.8rem;color:var(--ink-soft);font-weight:600}
select{padding:6px 8px;border:1px solid var(--line);border-radius:6px;background:#fff}

/* ===== v2 作品・投稿・コメントの追加スタイル ===== */
textarea{width:100%;padding:8px 9px;border:1px solid var(--line);border-radius:7px;font-family:inherit;font-size:14px}
.filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}
.filters select,.filters input{padding:6px 8px;border:1px solid var(--line);border-radius:6px;background:#fff}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}
.work-card{display:block;background:var(--paper-2);border:1px solid var(--line);border-radius:10px;overflow:hidden;color:inherit}
.work-card:hover{text-decoration:none;box-shadow:var(--shadow)}
.thumb-wrap{position:relative;aspect-ratio:4/3;background:#efeadd}
.thumb-wrap img{width:100%;height:100%;object-fit:cover;display:block}
.noimg{display:grid;place-items:center;height:100%;color:#bbb;font-size:.8rem}
.imgnum{position:absolute;right:6px;bottom:6px;background:rgba(0,0,0,.6);color:#fff;font-size:.7rem;padding:1px 6px;border-radius:999px}
.work-body{padding:8px 9px}
.work-title{font-family:"Hiragino Mincho ProN","Yu Mincho",serif;font-size:.9rem;font-weight:600;line-height:1.35;margin-bottom:5px}
.work-meta{display:flex;align-items:center;gap:6px;font-size:.72rem;color:var(--ink-soft)}
.work-meta .badge{margin-left:0}
.work-sub{font-size:.72rem;margin-top:3px}
.actions{display:flex;align-items:center;gap:8px}
.work-meta-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:.85rem;color:var(--ink-soft);margin-bottom:12px}
.note-box{background:#efeadd;border-left:3px solid var(--line);padding:9px 12px;border-radius:0 6px 6px 0;margin-bottom:16px;color:var(--ink-soft)}
.photos{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:10px;margin-bottom:20px}
.photos img{
  width:100%;aspect-ratio:3/4;object-fit:contain;
  background:#f5f1eb;
  border:1px solid var(--line);border-radius:8px;display:block;
  transition:opacity .1s;
}
.photos img:hover{opacity:.88}
@media(max-width:480px){
  .photos{grid-template-columns:repeat(auto-fill,minmax(110px,1fr))}
}
.comments{list-style:none;padding:0;margin:0 0 14px}
.comments li{padding:10px 0;border-top:1px solid var(--line)}
.c-head{display:flex;align-items:center;gap:8px;font-size:.85rem}
.c-body{margin-top:3px}
.comment-form textarea{margin-bottom:8px}
.photo-inputs{display:flex;gap:8px;margin-bottom:10px}
.photo-btn{flex:1;text-align:center;border:1px solid var(--line);border-radius:7px;padding:10px;cursor:pointer;font-size:.85rem;color:var(--ink-soft)}
.preview{display:grid;grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:10px;margin-bottom:12px}
.thumb-wrap2{display:flex;flex-direction:column;gap:4px}
.thumb{position:relative;border-radius:8px;overflow:hidden;background:#efeadd}
.thumb img{width:100%;aspect-ratio:1;object-fit:cover;display:block}
.edit-imgs-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:10px;margin-bottom:12px}
.edit-img-item{display:flex;flex-direction:column;gap:4px}
.edit-img-item .thumb{aspect-ratio:1;cursor:zoom-in}
.edit-img-item .thumb img{width:100%;height:100%;object-fit:cover;display:block}
.edit-del-label{display:flex;align-items:center;gap:6px;font-size:.82rem;padding:4px 6px;border:1px solid var(--line);border-radius:6px;cursor:pointer;background:var(--paper-2)}
.edit-del-label:has(input:checked){background:#fbeae7;border-color:var(--seal);color:var(--seal-dark)}
.btn-danger{background:none;border:1px solid #e6b9b1;color:var(--seal-dark);padding:9px;border-radius:8px;cursor:pointer;width:100%}
.mt{margin-top:10px}

/* ===== レイアウト修正（フォーム表示の崩れ対策） ===== */
/* すべての入力欄を等幅にし、email/tel/month/number/search にも適用 */
input[type=text],input[type=password],input[type=email],input[type=tel],
input[type=date],input[type=month],input[type=number],input[type=search],
input[type=url],select,textarea{
  width:100%;padding:.6rem .7rem;border:1px solid var(--line);
  border-radius:8px;background:#fff;font-size:1rem;font-family:inherit;color:var(--ink);
  display:block;
}
/* 素の <label> をブロック化して上に余白（フォームが縦に整う） */
form label{display:block;font-weight:600;margin:.85rem 0 .3rem;font-size:.92rem}
/* チェックボックス系のラベルは横並びを維持 */
form label.check,.photo-btn,.edit-img{display:flex;font-weight:400;margin-top:0}
form label.check{align-items:center;gap:8px;margin:.6rem 0 .9rem}
/* 送信ボタンの上に余白 */
form .btn{margin-top:1.1rem}
/* 無効化された入力（メール変更不可など）の見た目 */
input:disabled{background:#f2efe7;color:var(--ink-soft)}
/* エラー表示の既定スタイル（.alert 単体でも見えるように） */
.alert{background:#fbeae7;color:var(--seal-dark);border:1px solid #f0c9c2}
/* narrowカードを中央に */
.card.narrow{margin-left:auto;margin-right:auto}

.alert:empty{display:none}

/* ===== 段級ページ ===== */
.rank-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin-bottom:6px}
.rank-grid label{margin-top:0}
.rank-current{font-family:"Hiragino Mincho ProN","Yu Mincho",serif;font-size:1.15rem;font-weight:600;color:var(--seal-dark)}
.rank-history{list-style:none;padding:0;margin:6px 0 0}
.rank-history li{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:8px 0;border-top:1px solid var(--line)}
.rank-history li:first-child{border-top:0}
.r-date{font-variant-numeric:tabular-nums;color:var(--ink-soft);font-size:.85rem;min-width:92px}
.r-label{font-weight:600}
.r-int{color:var(--seal-dark);font-size:.8rem}
.r-note{flex-basis:100%}
.row.tight{gap:6px}
.row.tight input[type=text]{min-width:0}

/* ===== 認定団体・管理ハブ ===== */
.admin-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px}
.admin-card{display:block;background:var(--paper-2);border:1px solid var(--line);border-radius:12px;padding:18px;color:inherit}
.admin-card:hover{text-decoration:none;box-shadow:var(--shadow)}
.admin-card h2{margin:0 0 6px}
.rank-chip{display:inline-block;background:#efeadd;border-radius:8px;padding:3px 9px;margin:0 6px 6px 0;font-size:.85rem}

/* ===== 順序パターン・順位表示 ===== */
.level-list{margin:6px 0;padding-left:1.4em}
.level-list li{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:4px 0;border-top:1px solid var(--line)}
.level-list li:first-child{border-top:0}
.lv-label{font-weight:600}
.lv-ops{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.rank-pos{font-size:.8rem;color:var(--seal-dark);margin-left:6px}
.rank-bar{display:inline-block;width:120px;height:6px;background:#e6e0d2;border-radius:4px;vertical-align:middle;margin-left:8px;overflow:hidden}
.rank-bar>span{display:block;height:100%;background:var(--seal);border-radius:4px}

/* ===== 先生用作品ビュー ===== */
.tv-layout{display:grid;grid-template-columns:220px 1fr;min-height:calc(100vh - 120px);gap:0}
@media(max-width:700px){.tv-layout{grid-template-columns:1fr;grid-template-rows:auto 1fr}}

/* サイドバー */
.tv-sidebar{border-right:1px solid var(--line);padding:18px 16px;background:var(--paper-2)}
.tv-modes{display:flex;flex-direction:column;gap:4px;margin-bottom:16px}
.tv-mode-btn{display:block;padding:8px 12px;border-radius:8px;font-weight:600;color:var(--ink);text-decoration:none;border:1px solid transparent}
.tv-mode-btn:hover{background:var(--paper-1);text-decoration:none}
.tv-mode-btn.active{background:var(--seal);color:#fff;border-color:var(--seal)}
.tv-filter-group{margin-bottom:10px}
.tv-filter-group label{display:block;font-size:.8rem;font-weight:600;color:var(--ink-soft);margin-bottom:3px}
.tv-filter-group select,.tv-filter-group input{width:100%;font-size:.9rem}
.tv-apply{width:100%;margin-top:6px}
.tv-reset{display:block;text-align:center;margin-top:6px;font-size:.85rem}
.tv-hr{border:0;border-top:1px solid var(--line);margin:14px 0}
.tv-sidebar-label{font-size:.8rem;font-weight:600;color:var(--ink-soft);margin:0 0 6px}

/* メイン */
.tv-main{padding:20px 24px;overflow-x:auto}
.tv-hint{margin-top:40px;text-align:center}

/* サムネイルグリッド */
.tv-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}
.tv-thumb-card{display:block;border:1px solid var(--line);border-radius:10px;overflow:hidden;text-decoration:none;color:inherit;background:var(--paper-2);transition:box-shadow .15s}
.tv-thumb-card:hover{box-shadow:var(--shadow);text-decoration:none}
.tv-thumb-card img{width:100%;aspect-ratio:3/4;object-fit:cover;display:block}
.tv-no-img{display:flex;align-items:center;justify-content:center;aspect-ratio:3/4;background:#eee;font-size:.8rem;color:#999}
.tv-thumb-meta{padding:6px 8px;font-size:.8rem;display:flex;flex-direction:column;gap:2px}
.tv-owner{font-weight:600}
.tv-date{font-size:.75rem}

/* 時系列 */
.tv-timeline{display:flex;flex-direction:column;gap:0}
.tv-timeline-item{padding:16px 0;border-bottom:1px solid var(--line)}
.tv-timeline-item:last-child{border-bottom:0}
.tv-tl-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:8px}
.tv-tl-imgs{display:flex;gap:8px;flex-wrap:wrap}
.tv-tl-img{height:220px;width:auto;max-width:300px;object-fit:contain;border:1px solid var(--line);border-radius:6px;background:#faf9f5}
.tv-pick-btn{padding:3px 10px;border-radius:20px;border:1px solid var(--seal);color:var(--seal);font-size:.78rem;text-decoration:none;white-space:nowrap}
.tv-pick-btn:hover{text-decoration:none;background:var(--seal-light)}
.tv-pick-btn.picked{background:var(--seal);color:#fff}

/* 比較・フォーカスカラム */
.tv-compare-row{display:flex;gap:16px;align-items:flex-start;overflow-x:auto}
.tv-compare-free .tv-compare-col{min-width:220px;max-width:340px}
.tv-compare-col{flex:1;min-width:180px;display:flex;flex-direction:column;gap:8px}
.tv-col-label{font-size:.82rem;font-weight:700;padding:4px 8px;border-radius:6px;margin-bottom:4px}
.tv-col-student{background:#e8f0fb;color:#2255aa}
.tv-col-sample{background:#f5eddb;color:#7a5500}
.tv-compare-col .tv-col-label:not(.tv-col-student):not(.tv-col-sample){background:var(--paper-2);border:1px solid var(--line)}
.tv-full-img{width:100%;height:auto;border:1px solid var(--line);border-radius:6px;display:block;background:#faf9f5}
.tv-no-sample{opacity:.6;padding:16px 0}
.tv-focus-header{display:flex;align-items:center;gap:14px;margin-bottom:16px;flex-wrap:wrap}
.tv-note{font-size:.85rem;color:var(--ink-soft);margin:4px 0}
.tv-pick-hint{margin-top:16px}

/* ===== 生徒段級マトリクス ===== */
.tr-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
.tr-matrix{border-collapse:collapse;min-width:100%;font-size:.88rem}
.tr-matrix th,.tr-matrix td{border:1px solid var(--line);padding:8px 10px;vertical-align:top;white-space:nowrap}
.tr-matrix thead th{background:var(--paper-2);font-weight:700;position:sticky;top:0;z-index:2}
.tr-name-col{min-width:100px;position:sticky;left:0;z-index:3;background:var(--paper-2)}
.tr-matrix tbody .tr-name-cell{position:sticky;left:0;background:var(--paper-1);z-index:1;font-weight:600}
.tr-cat-col{min-width:130px;text-align:center}
.tr-cat-inactive{color:var(--ink-soft)}
.tr-inactive-badge{display:block;font-size:.7rem;font-weight:400;color:#999}
.tr-rank-cell{text-align:center;vertical-align:middle}
.tr-has-rank{background:#fdfaf4}
.tr-rank-link{display:flex;flex-direction:column;gap:2px;align-items:center;text-decoration:none;color:inherit}
.tr-rank-link:hover{text-decoration:none;background:#f0e8d0;border-radius:4px}
.tr-rank-label{font-weight:700;font-size:1rem;font-family:"Hiragino Mincho ProN","Yu Mincho",serif;color:var(--seal-dark)}
.tr-org{font-size:.72rem}
.tr-date{font-size:.7rem;font-variant-numeric:tabular-nums}
.tr-bar{display:block;width:80px;height:5px;margin:3px auto 0}
.tr-empty{color:#ccc}
.tr-no-data .tr-name-cell{color:var(--ink-soft)}
.rank-bar-legend{font-size:.8rem}

/* ===== ドラッグ＆ドロップ（パターンレベル並べ替え） ===== */
.dnd-list{list-style:none;padding:0;margin:6px 0 10px}
.dnd-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:var(--paper-1);margin-bottom:6px;cursor:default;transition:box-shadow .12s}
.dnd-item:last-child{margin-bottom:0}
.dnd-dragging{opacity:.4;box-shadow:0 6px 18px rgba(0,0,0,.18)}
.dnd-over{border-color:var(--seal);box-shadow:0 0 0 2px var(--seal-light)}
.dnd-handle{font-size:1.1rem;color:var(--ink-soft);cursor:grab;touch-action:none;padding:0 4px;user-select:none}
.dnd-handle:active{cursor:grabbing}
.dnd-list .lv-label{flex:1;font-weight:600}
.dnd-save-btn:not(:disabled){background:var(--seal);color:#fff}
.dnd-save-btn:disabled{opacity:.45;cursor:not-allowed}
.dnd-changed-note{margin-left:8px}

/* ===== ログインフォーム：チェックラベル ===== */
.check-label{display:flex;align-items:center;gap:8px;font-size:.9rem;margin:6px 0;cursor:pointer}
.check-label input[type=checkbox]{width:auto;margin:0;flex-shrink:0}

/* ===== DnD プレースホルダ ===== */
.dnd-placeholder{height:44px;border:2px dashed var(--seal);border-radius:8px;background:var(--seal-light, #f5e8e5);margin-bottom:6px;list-style:none}

/* ===== レベル名称変更フォーム ===== */
.lv-rename-form{list-style:none;padding:4px 0 4px 32px;margin-bottom:6px}
.lv-rename-row{gap:6px;flex-wrap:wrap}
.lv-rename-input{min-width:120px;flex:1}

/* ===== パターン名変更フォーム ===== */
.pat-rename-form{padding:8px 0 4px;margin-bottom:4px}
.pat-rename-input{min-width:160px;flex:1}

/* ===== チャット ===== */
.chat-log{
  display:flex;flex-direction:column;gap:12px;
  padding:16px 0;
  min-height:200px;
}
.chat-msg{display:flex;gap:10px;align-items:flex-start;max-width:100%}
.chat-avatar{
  flex-shrink:0;width:34px;height:34px;border-radius:50%;
  background:var(--seal);color:#fff;
  display:grid;place-items:center;font-size:.9rem;font-weight:700;
}
.chat-bubble{flex:1;min-width:0}
.chat-meta{display:flex;align-items:center;gap:8px;margin-bottom:4px;flex-wrap:wrap}
.chat-name{font-weight:600;font-size:.85rem}
.chat-time{font-size:.75rem;color:var(--ink-soft)}
.chat-del-btn{font-size:.72rem;padding:0;color:#aaa}
.chat-del-btn:hover{color:var(--seal-dark)}
.chat-body{
  background:var(--paper-2);border:1px solid var(--line);
  border-radius:0 12px 12px 12px;
  padding:9px 12px;font-size:.93rem;line-height:1.6;
  word-break:break-word;white-space:pre-wrap;
}
.chat-mine{flex-direction:row-reverse}
.chat-mine .chat-meta{flex-direction:row-reverse}
.chat-mine .chat-bubble{align-items:flex-end}
.chat-mine .chat-body{
  background:#f0e8d8;border-color:#e0cdb0;
  border-radius:12px 0 12px 12px;
}
.chat-attachments{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px}
.chat-img{max-width:220px;max-height:220px;border-radius:8px;border:1px solid var(--line);display:block;object-fit:cover}
.chat-img-link:hover .chat-img{opacity:.88}
.chat-file-link{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--paper-2);border:1px solid var(--line);border-radius:8px;
  padding:6px 10px;font-size:.85rem;text-decoration:none;color:var(--ink);
}
.chat-file-link:hover{background:var(--paper-1)}
.chat-empty{text-align:center;padding:40px 0}
.chat-loadmore{text-align:center;margin:0 0 8px}

/* 投稿フォーム */
.chat-form-wrap{
  position:sticky;bottom:0;
  background:var(--paper-2);border-top:2px solid var(--line);
  padding:10px 0 12px;margin:0 -16px;padding-left:16px;padding-right:16px;
}
.chat-form-wrap.chat-dragover{background:#f0e8d8;border-color:var(--seal)}
.chat-input-row{display:flex;gap:8px;align-items:flex-end}
.chat-textarea{
  flex:1;min-width:0;
  border:1px solid var(--line);border-radius:12px;
  padding:9px 12px;font-size:.93rem;resize:none;
  background:var(--paper-1);color:var(--ink);
  max-height:160px;overflow-y:auto;
  font-family:inherit;line-height:1.5;
}
.chat-textarea:focus{outline:none;border-color:var(--seal)}
.chat-attach-btns{display:flex;gap:4px}
.chat-icon-btn{
  display:inline-grid;place-items:center;
  width:36px;height:36px;border-radius:50%;
  background:var(--paper-1);border:1px solid var(--line);
  font-size:1.1rem;cursor:pointer;flex-shrink:0;
}
.chat-icon-btn:hover{background:var(--paper-2);border-color:var(--seal)}
.chat-send-btn{
  background:var(--seal);color:#fff;
  border:0;border-radius:12px;padding:9px 16px;
  font-size:.93rem;font-weight:600;cursor:pointer;flex-shrink:0;
}
.chat-send-btn:hover{background:var(--seal-dark)}
.chat-send-btn:disabled{opacity:.5;cursor:not-allowed}

/* プレビュー */
.chat-previews{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:8px}
.chat-preview-item{position:relative;display:inline-flex;align-items:center;gap:6px}
.chat-preview-img{width:64px;height:64px;object-fit:cover;border-radius:8px;border:1px solid var(--line)}
.chat-preview-name{font-size:.8rem;background:var(--paper-1);border:1px solid var(--line);border-radius:6px;padding:3px 8px}
.chat-preview-del{
  position:absolute;top:-6px;right:-6px;
  width:18px;height:18px;border-radius:50%;
  background:var(--seal);color:#fff;border:0;
  font-size:.7rem;cursor:pointer;display:grid;place-items:center;
}
@media(max-width:680px){
  .chat-img{max-width:160px;max-height:160px}
  .chat-send-btn{padding:9px 12px}
}

/* ===== ログインフォーム：スマホ対応 + パスワード表示トグル ===== */
.login-form .form-field{
  display:flex;flex-direction:column;margin-bottom:12px;
}
.login-form .form-field label{
  display:block;font-weight:600;font-size:.9rem;
  margin-bottom:4px;margin-top:0;
}
.login-form .form-field input{
  width:100%;box-sizing:border-box;
  padding:.65rem .75rem;font-size:1rem;
  border:1px solid var(--line);border-radius:8px;
  background:#fff;color:var(--ink);
  -webkit-appearance:none;
}
.login-form .form-field input:focus{
  outline:2px solid var(--seal);outline-offset:1px;border-color:transparent;
}

/* パスワード表示ボタン */
.pw-wrap{position:relative;display:flex;align-items:center}
.pw-wrap input{padding-right:44px;flex:1}
.pw-toggle{
  position:absolute;right:0;top:0;bottom:0;
  width:42px;background:none;border:0;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  font-size:1.1rem;color:var(--ink-soft);
  border-radius:0 8px 8px 0;
  transition:color .15s;
}
.pw-toggle:hover{color:var(--seal-dark)}
.pw-toggle[aria-pressed="true"]{color:var(--seal)}

/* ===== ワンタップ昇級・昇段ボタン ===== */
.rank-head-right{
  display:flex;flex-direction:column;align-items:flex-end;gap:8px;
}
.rank-up-form{margin:0}
.btn-rankup{
  display:inline-block;
  background:var(--seal);color:#fff;
  border:0;border-radius:999px;
  padding:7px 16px;font-size:.9rem;font-weight:700;
  cursor:pointer;white-space:nowrap;
  box-shadow:0 2px 8px rgba(180,64,47,.25);
  transition:background .12s,transform .1s;
  text-decoration:none;
}
.btn-rankup:hover{background:var(--seal-dark);transform:translateY(-1px);text-decoration:none;color:#fff}
.btn-rankup:active{transform:translateY(0)}
.btn-rankup-free{
  background:var(--paper-2);color:var(--seal-dark);
  border:1.5px solid var(--seal);
  box-shadow:none;
}
.btn-rankup-free:hover{background:var(--seal-light,#f5ede9);color:var(--seal-dark)}
.rank-top-badge{
  display:inline-block;
  background:#f5e8c0;color:#7a5500;
  border-radius:999px;padding:5px 12px;font-size:.82rem;font-weight:600;
}

/* ===== 画像編集モーダル（回転・切り抜き） ===== */
/* ===== 画像編集モーダル v4 ===== */
.crop-modal{
  position:fixed;inset:0;z-index:9000;
  display:flex;align-items:center;justify-content:center;
  background:rgba(0,0,0,.72);padding:12px;
}
.crop-modal-inner{
  background:var(--paper-1);border-radius:16px;
  width:min(620px,100%);max-height:92vh;
  display:flex;flex-direction:column;overflow:hidden;
}
.crop-modal-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:10px 16px;border-bottom:1px solid var(--line);flex-shrink:0;
}
.crop-modal-title{font-weight:700;font-size:1rem}

/* タブ */
.crop-tabs{display:flex;border-bottom:1px solid var(--line);flex-shrink:0}
.crop-tab{
  flex:1;padding:9px;font-size:.88rem;font-weight:600;
  border:0;background:none;cursor:pointer;color:var(--ink-soft);
  border-bottom:2.5px solid transparent;
}
.crop-tab.active{color:var(--seal-dark);border-bottom-color:var(--seal)}
.crop-tab:hover{background:var(--paper-2)}

/* 回転プレビュー */
.crop-rot-preview-wrap{
  flex:1;overflow:auto;background:#111;
  display:flex;align-items:center;justify-content:center;
  min-height:200px;max-height:46vh;
}
.crop-rot-preview{
  max-width:100%;max-height:46vh;
  object-fit:contain;display:block;
  transition:transform .1s;
}

/* トリミングエリア */
.crop-wrap{
  flex:1;overflow:hidden;background:#111;
  min-height:200px;max-height:46vh;position:relative;
}
.crop-wrap img{display:block;max-width:100%}

/* ツールバー */
.crop-tools{
  padding:8px 12px;border-top:1px solid var(--line);
  display:flex;flex-direction:column;gap:6px;flex-shrink:0;
  background:var(--paper-2);
}
.crop-tool-row{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.crop-tool-label{font-size:.78rem;color:var(--ink-soft);font-weight:600;white-space:nowrap}
.crop-tool-btn{
  padding:6px 10px;border-radius:8px;font-size:.82rem;
  border:1.5px solid var(--line);background:var(--paper-1);
  cursor:pointer;color:var(--ink);white-space:nowrap;
}
.crop-tool-btn:hover{border-color:var(--seal);background:var(--seal-light,#f5ede9)}
.crop-tool-btn.active{background:var(--seal);color:#fff;border-color:var(--seal)}
.crop-angle-input{
  width:60px;padding:5px 6px;font-size:.85rem;text-align:center;
  border:1.5px solid var(--line);border-radius:7px;
  background:var(--paper-1);color:var(--ink);
}
.crop-modal-foot{
  padding:10px 16px;border-top:1px solid var(--line);
  display:flex;justify-content:flex-end;flex-shrink:0;
}

/* サムネイル：削除ボタンを外に出す */
.thumb-wrap2{display:flex;flex-direction:column;gap:4px}
.thumb-del-btn{
  width:100%;padding:4px;font-size:.75rem;
  border:1px solid var(--line);border-radius:6px;
  background:var(--paper-2);color:var(--seal-dark);
  cursor:pointer;
}
.thumb-del-btn:hover{background:#fbeae7;border-color:var(--seal)}

/* サムネイルに編集ボタン・バッジ */
.thumb-edit{
  position:absolute;bottom:0;left:0;right:0;height:32px;
  background:rgba(0,0,0,.60);color:#fff;border:0;
  font-size:.78rem;font-weight:600;cursor:pointer;
  display:flex;align-items:center;justify-content:center;gap:4px;
}
.thumb-edit:hover,.thumb-edit:active{background:var(--seal)}
.thumb-edited-badge{
  position:absolute;top:4px;left:4px;
  background:var(--seal);color:#fff;
  font-size:.65rem;font-weight:700;
  padding:2px 6px;border-radius:4px;pointer-events:none;
}

/* ===== 画像編集モーダル：回転ツール行 ===== */
.crop-tool-row{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.crop-tool-label{font-size:.78rem;color:var(--ink-soft);font-weight:600;min-width:24px}
.crop-angle-wrap{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.crop-angle-input{
  width:64px;padding:5px 7px;font-size:.85rem;
  border:1.5px solid var(--line);border-radius:7px;
  background:var(--paper-1);color:var(--ink);
  text-align:center;
}
.crop-angle-input:focus{outline:2px solid var(--seal);outline-offset:1px;border-color:transparent}

/* ===== ライトボックス ===== */
#lb-overlay{
  display:none;
  position:fixed;inset:0;z-index:9500;
  background:rgba(0,0,0,.94);
  align-items:center;justify-content:center;
}
#lb-overlay.lb-open{display:flex}
#lb-img{
  max-width:92vw;max-height:90vh;
  object-fit:contain;display:block;
  border-radius:4px;
  user-select:none;
}
#lb-close{
  position:fixed;top:14px;right:16px;
  width:40px;height:40px;border-radius:50%;
  background:rgba(255,255,255,.15);color:#fff;border:0;
  font-size:1.2rem;cursor:pointer;display:grid;place-items:center;
  z-index:1;
}
#lb-close:hover{background:rgba(255,255,255,.3)}
#lb-prev,#lb-next{
  position:fixed;top:50%;transform:translateY(-50%);
  width:44px;height:64px;border-radius:8px;
  background:rgba(255,255,255,.12);color:#fff;border:0;
  font-size:1.3rem;cursor:pointer;display:grid;place-items:center;
}
#lb-prev{left:10px} #lb-next{right:10px}
#lb-prev:hover,#lb-next:hover{background:rgba(255,255,255,.25)}
#lb-count{
  position:fixed;bottom:16px;left:50%;transform:translateX(-50%);
  color:rgba(255,255,255,.75);font-size:.85rem;pointer-events:none;
}
@media(max-width:680px){
  #lb-prev{left:4px} #lb-next{right:4px}
  #lb-prev,#lb-next{width:36px;height:54px}
}

/* index.php 一覧：ライトボックス対応ラッパー */
.work-card-wrap{display:contents}  /* グリッドセルを維持 */

/* ===== 管理一覧テーブル ===== */
.admin-section-head{font-size:.9rem;font-weight:700;color:var(--ink-soft);margin:0 0 10px;text-transform:uppercase;letter-spacing:.05em}
.admin-tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:10px;background:var(--paper-2)}
.admin-tbl{width:100%;border-collapse:collapse;font-size:.85rem;min-width:600px}
.admin-tbl th{background:var(--paper-2);font-weight:600;white-space:nowrap;padding:8px 12px;border-bottom:1px solid var(--line)}
.admin-tbl td{padding:8px 12px;vertical-align:top;border-top:1px solid var(--line)}
.admin-tbl tr:hover td{background:#faf9f5}
.text-center{text-align:center}
.fw600{font-weight:600}
.pagination{display:flex;gap:6px;margin-top:16px;flex-wrap:wrap}
.page-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:8px;
  border:1px solid var(--line);font-size:.88rem;text-decoration:none;color:var(--ink);
}
.page-btn:hover{background:var(--paper-2);text-decoration:none}
.page-btn.active{background:var(--seal);color:#fff;border-color:var(--seal)}

/* ===== ファイル共有 ===== */
.cf-upload-form{display:flex;flex-direction:column;gap:10px}
.cf-upload-area{
  border:2px dashed var(--line);border-radius:12px;
  padding:28px 20px;text-align:center;cursor:pointer;
  background:var(--paper-1);transition:border-color .15s,background .15s;
  position:relative;
}
.cf-upload-area:hover,.cf-upload-area.cf-dragover{
  border-color:var(--seal);background:var(--seal-light,#f5ede9);
}
.cf-upload-icon{font-size:2rem;margin-bottom:8px}
.cf-upload-hint{font-weight:600;margin:0 0 4px}
.cf-file-input{
  position:absolute;inset:0;opacity:0;cursor:pointer;width:100%;height:100%;
}
.cf-selected-file{
  background:var(--paper-2);border:1px solid var(--line);border-radius:8px;
  padding:8px 12px;font-size:.88rem;color:var(--seal-dark);font-weight:600;
}
.cf-desc-row{display:flex;gap:8px;align-items:center}
.cf-desc-input{flex:1;padding:.5rem .75rem;border:1px solid var(--line);border-radius:8px;font-size:.92rem}
.cf-tbl{width:100%;font-size:.88rem}
.cf-tbl th{background:var(--paper-2);padding:8px 12px;font-weight:600;border-bottom:1px solid var(--line)}
.cf-tbl td{padding:9px 12px;border-top:1px solid var(--line);vertical-align:middle}
.cf-tbl tr:hover td{background:var(--paper-2)}
.cf-file-link{font-weight:600;text-decoration:none;color:var(--seal-dark)}
.cf-file-link:hover{text-decoration:underline}
.nowrap{white-space:nowrap}