:root{
  --bg:#f4f6f9; --card:#fff; --ink:#1f2733; --muted:#717b88; --line:#e4e8ee;
  --pri:#2f6fed; --pri-d:#2356c4; --ok:#138a52; --ok-bg:#e7f6ee; --warn:#c47f12;
  --warn-bg:#fdf3e3; --accent:#6b46c1; --accent-bg:#f0ebfb; --err:#c0392b;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);
  font-family:-apple-system,"Hiragino Kaku Gothic ProN","Noto Sans JP",Meiryo,sans-serif;line-height:1.6}
button{font-family:inherit;cursor:pointer}
.hidden{display:none!important}

/* 上部の切替バー(プロトタイプ用) */
.proto-bar{background:#11151c;color:#fff;padding:8px 16px;display:flex;gap:8px;align-items:center;
  position:sticky;top:0;z-index:50;font-size:.85rem;flex-wrap:wrap}
.proto-bar b{margin-right:6px}
.proto-bar button{background:#2a313c;color:#cfd6df;border:1px solid #3a424f;padding:6px 12px;
  border-radius:7px}
.proto-bar button.on{background:var(--pri);color:#fff;border-color:var(--pri)}
.proto-bar .note{color:#8b94a1;margin-left:auto;font-size:.78rem}

/* 共通レイアウト */
.topbar{background:var(--card);border-bottom:1px solid var(--line);padding:12px 22px;
  display:flex;align-items:center;gap:14px}
.brand{font-weight:800;font-size:1.15rem;letter-spacing:.02em}
.brand .sub{color:var(--muted);font-weight:600;font-size:.78rem;margin-left:8px}
.spacer{flex:1}
.userchip{display:flex;align-items:center;gap:8px;font-size:.88rem;color:var(--muted)}
.userchip .av{width:30px;height:30px;border-radius:50%;background:var(--accent-bg);
  color:var(--accent);display:grid;place-items:center;font-weight:700}
.gbtn{display:inline-flex;align-items:center;gap:9px;background:#fff;border:1px solid var(--line);
  border-radius:8px;padding:9px 16px;font-weight:600;font-size:.9rem;color:#3c4043;box-shadow:0 1px 2px rgba(0,0,0,.05)}
.gbtn .g{width:18px;height:18px;display:inline-block}
.wrap{max-width:1080px;margin:0 auto;padding:26px 20px 70px}

/* FCトップ:見開きメニュー */
.hero{background:linear-gradient(120deg,#2f6fed,#6b46c1);color:#fff;border-radius:16px;
  padding:30px 32px;margin-bottom:24px}
.hero h1{margin:0 0 6px;font-size:1.5rem}
.hero p{margin:0;opacity:.92}
.menu-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:820px){.menu-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.menu-grid{grid-template-columns:1fr}}
.tile{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px;
  text-align:left;transition:.15s;display:flex;flex-direction:column;gap:8px;min-height:140px}
.tile:hover{transform:translateY(-3px);box-shadow:0 8px 22px rgba(31,39,51,.1);border-color:#cdd6e3}
.tile .ic{width:46px;height:46px;border-radius:11px;display:grid;place-items:center;font-size:1.4rem}
.tile h3{margin:2px 0 0;font-size:1.05rem}
.tile p{margin:0;color:var(--muted);font-size:.85rem}
.tile .badge{align-self:flex-start;margin-top:auto;font-size:.72rem;font-weight:700;
  background:var(--warn-bg);color:var(--warn);padding:2px 8px;border-radius:20px}

/* カード/見出し */
.page-head{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.page-head h2{margin:0;font-size:1.3rem}
.back{background:#eef1f5;border:1px solid var(--line);border-radius:8px;padding:7px 13px;font-size:.85rem;color:var(--ink)}
.card{background:var(--card);border:1px solid var(--line);border-radius:13px;padding:22px;margin-bottom:18px}
.muted{color:var(--muted)}

/* 発注(卸購入風) */
.shop{display:grid;grid-template-columns:1fr 320px;gap:20px;align-items:start}
@media(max-width:880px){.shop{grid-template-columns:1fr}}
.prod-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
@media(max-width:560px){.prod-grid{grid-template-columns:1fr}}
.prod{background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.prod .img{height:120px;background:linear-gradient(135deg,#eef1f6,#dfe5ee);display:grid;place-items:center;
  font-size:2.4rem}
.prod .body{padding:13px}
.prod h4{margin:0 0 3px;font-size:.95rem}
.prod .price{color:var(--pri);font-weight:800;font-size:1.05rem}
.prod .price small{color:var(--muted);font-weight:500;font-size:.72rem}
.qty{display:flex;align-items:center;gap:8px;margin:10px 0}
.qty button{width:28px;height:28px;border-radius:7px;border:1px solid var(--line);background:#f6f8fb;font-size:1rem}
.qty input{width:46px;text-align:center;padding:5px;border:1px solid var(--line);border-radius:7px}
.addbtn{width:100%;background:var(--pri);color:#fff;border:none;border-radius:8px;padding:9px;font-weight:600}
.addbtn:hover{background:var(--pri-d)}
.cart{position:sticky;top:60px;background:var(--card);border:1px solid var(--line);border-radius:13px;padding:18px}
.cart h3{margin:0 0 12px;font-size:1.05rem;display:flex;align-items:center;gap:8px}
.cart-item{display:flex;justify-content:space-between;gap:8px;padding:9px 0;border-bottom:1px solid var(--line);font-size:.88rem}
.cart-item .x{color:var(--err);background:none;border:none;font-size:.95rem}
.cart-empty{color:var(--muted);text-align:center;padding:18px 0;font-size:.88rem}
.cart-total{display:flex;justify-content:space-between;font-weight:800;font-size:1.1rem;margin:14px 0 6px}
.pay-note{background:var(--warn-bg);color:var(--warn);border-radius:8px;padding:9px 11px;font-size:.8rem;margin-bottom:12px}
.checkout{width:100%;background:var(--ok);color:#fff;border:none;border-radius:9px;padding:12px;font-weight:700;font-size:1rem}
.checkout:disabled{opacity:.5}

/* フォーム要素 */
label{display:block;font-weight:600;font-size:.88rem;margin:0 0 6px}
input[type=text],input[type=email],input[type=date],select,textarea{
  width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:8px;font-size:.95rem;font-family:inherit}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}
@media(max-width:560px){.grid2{grid-template-columns:1fr}}
.field{margin-bottom:15px}
.btn-pri{background:var(--pri);color:#fff;border:none;border-radius:8px;padding:11px 20px;font-weight:600}
.btn-pri:hover{background:var(--pri-d)}
.btn-line{background:#fff;border:1px solid var(--line);border-radius:8px;padding:10px 16px;font-weight:600;color:var(--ink)}

/* 管理画面 */
.admin{display:grid;grid-template-columns:210px 1fr;min-height:calc(100vh - 52px)}
@media(max-width:760px){.admin{grid-template-columns:1fr}}
.side{background:#11151c;color:#aeb6c2;padding:18px 12px}
.side .logo{color:#fff;font-weight:800;padding:6px 10px 16px;font-size:1rem}
.side a{display:flex;align-items:center;gap:10px;color:#aeb6c2;text-decoration:none;padding:10px 12px;
  border-radius:8px;font-size:.9rem;margin-bottom:2px}
.side a:hover{background:#1c222c;color:#fff}
.side a.on{background:var(--pri);color:#fff}
.admin-main{padding:24px 26px;overflow:auto}
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:20px}
@media(max-width:760px){.stat-row{grid-template-columns:1fr 1fr}}
.stat{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px}
.stat .n{font-size:1.6rem;font-weight:800}
.stat .l{color:var(--muted);font-size:.82rem}
table{width:100%;border-collapse:collapse;background:var(--card);border:1px solid var(--line);
  border-radius:12px;overflow:hidden;font-size:.88rem}
th,td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--line)}
th{background:#f0f2f5;color:var(--muted);font-size:.78rem}
tr:last-child td{border-bottom:none}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
.tag{display:inline-block;padding:2px 9px;border-radius:20px;font-size:.76rem;font-weight:700}
.t-new{background:var(--warn-bg);color:var(--warn)}
.t-prog{background:#e8f0ff;color:var(--pri-d)}
.t-done{background:var(--ok-bg);color:var(--ok)}
.dropzone{border:2px dashed #c4ccd8;border-radius:12px;padding:26px;text-align:center;color:var(--muted);
  background:#fafbfd;margin-bottom:14px}
.dropzone b{color:var(--ink)}
.confirm-box{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:16px 0}
@media(max-width:600px){.confirm-box{grid-template-columns:1fr}}
.confirm-box .c{background:var(--accent-bg);border-radius:11px;padding:16px;text-align:center}
.confirm-box .c .n{font-size:1.5rem;font-weight:800;color:var(--accent)}
.confirm-box .c .l{font-size:.8rem;color:var(--muted)}
.invoice{max-width:620px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:26px}
.invoice h3{margin:0 0 4px}
.inv-row{display:flex;justify-content:space-between;padding:9px 0;border-bottom:1px solid var(--line)}
.inv-row.total{font-weight:800;font-size:1.15rem;border-bottom:none;border-top:2px solid var(--ink);margin-top:6px;padding-top:12px}
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:#11151c;color:#fff;
  padding:12px 22px;border-radius:10px;box-shadow:0 8px 24px rgba(0,0,0,.25);z-index:100;font-size:.9rem}
.help{background:var(--accent-bg);border-left:4px solid var(--accent);padding:11px 14px;border-radius:8px;
  font-size:.82rem;color:#4a3a78;margin-bottom:14px}
/* 追加:ログイン・フォーム補助 */
.login-box{max-width:400px;margin:90px auto;text-align:center}
.alert{border-radius:10px;padding:16px 18px;margin:14px 0}
.alert.success{background:var(--ok-bg);border:1px solid #b7e2cb;color:var(--ok);text-align:left}
.alert.error{background:#fdecea;border:1px solid #f2c2bd;color:var(--err)}
.req{color:var(--err);font-size:.7rem;font-weight:700;margin-left:5px;background:#fdecea;padding:1px 6px;border-radius:4px}
a.tile{text-decoration:none;color:inherit}
a.btn-line{text-decoration:none}