/* ============================================================
   社内メール検索AI  UIテーマ（モダン版）
   ※外部フォント/CDNはCSPで不可。システムフォント＋単一CSSで完結。
   ============================================================ */
:root{
  --bg:#f5f6fb;
  --panel:#ffffff;
  --ink:#0f172a;
  --muted:#64748b;
  --line:#e7e9f0;
  --brand:#4f46e5;
  --brand-d:#4338ca;
  --brand-50:#eef2ff;
  --ok-bg:#e9f9ef; --ok-ink:#0f7a43;
  --err-bg:#fdecee; --err-ink:#b42318;
  --warn-ink:#9a5b00;
  --radius:14px;
  --shadow:0 1px 2px rgba(16,24,40,.05), 0 10px 28px rgba(16,24,40,.06);
  --shadow-sm:0 1px 2px rgba(16,24,40,.06);
  --grad:linear-gradient(135deg,#6366f1 0%,#4f46e5 60%,#4338ca 100%);
}
*{box-sizing:border-box}
html,body{margin:0}
body{
  font-family:-apple-system,"Segoe UI","Hiragino Sans","Noto Sans JP",system-ui,sans-serif;
  background:
    radial-gradient(1200px 400px at 100% -10%, #eef1ff 0%, transparent 60%),
    radial-gradient(900px 360px at -10% 0%, #f0fbff 0%, transparent 55%),
    var(--bg);
  color:var(--ink);line-height:1.6;-webkit-font-smoothing:antialiased;
}

/* ---- トップバー ---- */
.topbar{
  display:flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.8);backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--line);
  padding:12px 22px;position:sticky;top:0;z-index:20;
}
.brand{font-weight:800;letter-spacing:.2px;text-decoration:none;color:var(--ink);font-size:15px;margin-right:10px}
.topbar nav{display:flex;gap:4px}
.topbar nav a{
  text-decoration:none;color:var(--muted);font-size:14px;font-weight:600;
  padding:7px 12px;border-radius:9px;transition:.15s;
}
.topbar nav a:hover{color:var(--brand);background:var(--brand-50)}
.userbox{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted)}
.userbox a{color:var(--brand);text-decoration:none;font-weight:600}
.userbox a:hover{text-decoration:underline}
.role{font-size:11px;font-weight:700;padding:2px 9px;border-radius:999px}
.role.admin{background:#fde7ea;color:#b42318}
.role.user{background:var(--brand-50);color:var(--brand-d)}

.container{max-width:940px;margin:28px auto;padding:0 18px}
h1{font-size:23px;font-weight:800;letter-spacing:.2px;margin:0 0 14px}
h2{font-size:15px;font-weight:700;margin:18px 0 10px;color:#1f2937}
h3{font-size:17px;font-weight:700}
h4{font-size:13px;font-weight:700;color:var(--muted);margin:14px 0 6px}

/* ---- カード ---- */
.card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px;margin-bottom:16px;box-shadow:var(--shadow);
}
.card.error{background:var(--err-bg);border-color:#f6cdd2;color:var(--err-ink)}
.card.ok{background:var(--ok-bg);border-color:#bfead0;color:var(--ok-ink)}
.interp{background:linear-gradient(180deg,#f7f9ff, #ffffff);border-color:#dfe5ff}

/* ---- フォーム ---- */
label{display:flex;flex-direction:column;gap:5px;font-size:12.5px;color:var(--muted);font-weight:600}
label.full{margin-bottom:14px}
label.check{flex-direction:row;align-items:center;gap:9px;color:var(--ink);font-weight:500;margin:9px 0}
label.check input{width:16px;height:16px;accent-color:var(--brand)}
input[type=text],input[type=date],input[type=email],input[type=password],select,textarea{
  padding:10px 12px;border:1px solid var(--line);border-radius:10px;font-size:14px;
  background:#fff;color:var(--ink);transition:.15s;font-family:inherit;
}
input:focus,select:focus,textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(79,70,229,.16);
}
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:13px;margin-bottom:10px}
.bigsearch{font-size:18px;padding:16px 18px;width:100%;border-radius:12px;box-shadow:var(--shadow-sm)}
.bigtext{width:100%;font-size:15px;padding:13px;border-radius:12px;resize:vertical}
label.full > span{font-size:13px;color:var(--ink);font-weight:700;margin-bottom:6px}

/* ---- ボタン ---- */
button{
  padding:10px 18px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);
  cursor:pointer;font-size:14px;font-weight:600;transition:.15s;box-shadow:var(--shadow-sm);
}
button:hover{border-color:#cfd4e2;transform:translateY(-1px)}
button.primary{background:var(--grad);border:none;color:#fff;box-shadow:0 6px 16px rgba(79,70,229,.32)}
button.primary:hover{filter:brightness(1.05);transform:translateY(-1px)}
button[disabled]{opacity:.5;cursor:not-allowed;transform:none}
.link-btn{background:none;border:none;color:var(--brand);cursor:pointer;padding:0;font-size:13px;font-weight:600;box-shadow:none}
.link-btn:hover{text-decoration:underline;transform:none}

/* ---- 検索・結果 ---- */
.hint{font-size:12px;color:var(--muted);margin:8px 0 0}
.rowflex{display:flex;align-items:center;justify-content:space-between;gap:12px}
.back{color:var(--muted);text-decoration:none;font-size:13px;font-weight:600}
.back:hover{color:var(--brand)}
.meta{color:var(--muted);font-size:13px}
.toolbar{display:flex;align-items:center;gap:9px;margin:12px 0;flex-wrap:wrap}
.grow{flex:1}
.reply-inst{min-width:220px}
.results{list-style:none;padding:0;margin:0}
.results .card{animation:fade .25s ease both}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.result{transition:.15s}
.result:hover{box-shadow:0 2px 4px rgba(16,24,40,.06),0 14px 34px rgba(16,24,40,.10);transform:translateY(-2px)}
.result-head{display:flex;gap:12px;align-items:flex-start}
.subject{font-weight:700;font-size:15px;line-height:1.45}
.metaline{display:flex;gap:8px;flex-wrap:wrap;align-items:center;color:var(--muted);font-size:12px;margin-top:4px}
.snippet{margin:10px 0 0;color:#374151;font-size:13.5px}
.result-actions{margin-top:10px}

/* ---- タグ/バッジ ---- */
.tag{background:#f1f3f9;color:#475569;border-radius:999px;padding:2px 10px;font-size:11px;font-weight:600;white-space:nowrap}
.tag.cust{background:#fff3e6;color:#9a5b00}
.tag.acct{background:var(--brand-50);color:var(--brand-d)}
.tag.dup{background:#fff3e6;color:#9a5b00}
.tag.athit{background:#e7f7ec;color:#1b7a3d}
.score{color:var(--brand-d);font-weight:700;font-size:12px}
.att-line{color:#1b7a3d;font-size:12px;margin-top:5px}
.score-badge{
  flex:0 0 auto;width:50px;height:50px;border-radius:14px;background:var(--grad);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:18px;
  box-shadow:0 6px 14px rgba(79,70,229,.3);
}
.match-reason{margin:10px 0 0;font-size:13.5px}
.match-concern{margin:5px 0 0;color:var(--warn-ink);font-size:13px}
.match-todo{margin:5px 0 0;color:var(--brand-d);font-size:13px}

blockquote{border-left:3px solid var(--brand);margin:8px 0;padding:6px 12px;color:#475569;background:#f8f9ff;border-radius:0 8px 8px 0;font-size:13px}
details summary{cursor:pointer;color:var(--muted);font-size:13px;margin-top:8px;font-weight:600}
details summary:hover{color:var(--brand)}

/* ---- AI分析 ---- */
.analysis .engine{font-size:12px;color:var(--muted);margin-bottom:8px}
.ai-text,.raw{white-space:pre-wrap;word-break:break-word;font-family:inherit;font-size:14px;margin:0}
.raw{font-size:13px;color:#334155;background:#f8fafc;border:1px solid var(--line);border-radius:10px;padding:12px;max-height:360px;overflow:auto}
.evid-emails{padding-left:18px}

/* ---- テーブル ---- */
.stats{width:100%;border-collapse:collapse}
.stats th{text-align:left;color:var(--muted);font-weight:600;padding:8px 8px;width:42%}
.stats td{padding:8px 8px}
.audit td{font-size:12px}
.audit th{padding:8px}
.empty{color:var(--muted)}
code{background:#eef0f6;padding:1px 6px;border-radius:5px;font-size:.92em}

/* ---- 進捗バー ---- */
.progress{height:14px;background:#eceefa;border-radius:999px;overflow:hidden;margin:12px 0 4px}
.progress .bar{height:100%;background:var(--grad);transition:width .5s ease}

/* ---- ログイン ---- */
.login-wrap{max-width:420px;margin:9vh auto;padding:0 16px}
.login{position:relative;overflow:hidden;padding-top:26px}
.login::before{content:"";position:absolute;inset:0 0 auto 0;height:5px;background:var(--grad)}
.login h1{font-size:21px}
.login button{width:100%;margin-top:10px}
.login-err{margin:8px 0}

/* ---- モーダル ---- */
.modal-ov{
  display:none;position:fixed;inset:0;background:rgba(15,23,42,.45);backdrop-filter:blur(2px);
  z-index:60;align-items:flex-start;justify-content:center;padding:44px 16px;overflow:auto;
}
.modal{background:#fff;border-radius:16px;max-width:880px;width:100%;padding:22px;position:relative;
  box-shadow:0 24px 60px rgba(15,23,42,.35);animation:fade .2s ease both}
.modal-close{position:absolute;top:14px;right:14px}
.email-detail h3{margin:0 0 12px;padding-right:90px}

/* ---- フッター ---- */
.foot{max-width:940px;margin:26px auto;padding:16px;color:var(--muted);font-size:12px;text-align:center}

@media(max-width:560px){
  .grid{grid-template-columns:1fr}
  .container{margin:18px auto}
}