*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{font-size:14px;}
body{font-family:'Segoe UI','Hiragino Sans','Yu Gothic UI',sans-serif;background:#f1f5f9;color:#1e293b;min-height:100vh;}
a{text-decoration:none;color:inherit;}
:root{
  --navy:#1a1d2e;--blue:#2563eb;--blue-l:#eff6ff;--red:#dc2626;
  --green:#059669;--gray:#64748b;--border:#e2e8f0;--white:#ffffff;
  --radius:10px;--shadow:0 1px 3px rgba(0,0,0,.08),0 1px 2px rgba(0,0,0,.06);
}

/* ── ログイン ── */
.auth-wrapper{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#0f172a 0%,#1e293b 50%,#0f172a 100%);padding:24px;}
.auth-card{background:#fff;border-radius:16px;padding:40px 36px;width:100%;max-width:380px;box-shadow:0 20px 60px rgba(0,0,0,.3);}
.auth-logo{text-align:center;margin-bottom:28px;}
.auth-icon{font-size:40px;display:block;margin-bottom:10px;}
.auth-logo h1{font-size:1.3rem;font-weight:700;color:var(--navy);margin-bottom:4px;}
.auth-logo p{font-size:.82rem;color:var(--gray);}
.alert{border-radius:8px;padding:10px 14px;font-size:.85rem;margin-bottom:16px;display:flex;align-items:center;gap:8px;}
.alert-error{background:#fef2f2;border:1px solid #fecaca;color:var(--red);}
.auth-form{display:flex;flex-direction:column;gap:14px;}
.form-group{display:flex;flex-direction:column;gap:5px;}
.form-group label{font-size:.78rem;font-weight:600;color:var(--gray);letter-spacing:.3px;}
.required{color:var(--red);}
input[type="text"],input[type="password"],select,textarea{
  border:1px solid var(--border);border-radius:8px;padding:8px 12px;font-size:.88rem;
  color:var(--navy);background:#f8fafc;transition:border-color .15s,box-shadow .15s;width:100%;
  font-family:inherit;
}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(37,99,235,.1);background:#fff;}

/* ── ボタン ── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:5px;padding:9px 18px;border-radius:8px;font-size:.88rem;font-weight:600;cursor:pointer;border:none;transition:all .15s;font-family:inherit;}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 1px 3px rgba(37,99,235,.25);}
.btn-primary:hover{background:#1d4ed8;transform:translateY(-1px);}
.btn-primary:disabled{background:#93c5fd;cursor:not-allowed;transform:none;}
.btn-outline{background:#fff;color:var(--blue);border:1.5px solid var(--blue);}
.btn-outline:hover{background:var(--blue-l);}
.btn-full{width:100%;}
.btn-sm{padding:6px 12px;font-size:.8rem;}

/* ── レイアウト ── */
.app-layout{display:flex;min-height:100vh;}
.sidebar{width:210px;min-width:210px;background:var(--navy);display:flex;flex-direction:column;padding:0;position:sticky;top:0;height:100vh;transition:width .2s,min-width .2s;overflow:hidden;}
.sidebar.collapsed{width:48px!important;min-width:48px!important;}
.sidebar.collapsed .sidebar-title,.sidebar.collapsed .nav-item span:not(.nav-icon){display:none;}
.sidebar.collapsed .nav-item{justify-content:center;padding:10px;}
.sidebar-logo{display:flex;align-items:center;gap:8px;padding:15px 12px;border-bottom:1px solid rgba(255,255,255,.08);}
.sidebar-title{font-size:.85rem;font-weight:700;color:#fff;line-height:1.2;white-space:nowrap;}
.sidebar-toggle{margin-left:auto;flex-shrink:0;width:26px;height:26px;border-radius:6px;background:rgba(255,255,255,.12);border:none;color:rgba(255,255,255,.7);font-size:10px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .15s;}
.sidebar-toggle:hover{background:rgba(255,255,255,.3);color:#fff;}
.sidebar[data-collapsed="1"] .sidebar-logo{justify-content:center;padding:13px 0;}
.sidebar[data-collapsed="1"] .sidebar-logo>span:first-child{display:none;}
.sidebar[data-collapsed="1"] .sidebar-toggle{margin-left:0;width:34px;height:34px;font-size:12px;}
.sidebar-nav{flex:1;padding:10px 6px;display:flex;flex-direction:column;gap:3px;}
.nav-item{display:flex;align-items:center;gap:9px;padding:9px 12px;border-radius:8px;font-size:.83rem;color:rgba(255,255,255,.6);transition:all .15s;white-space:nowrap;overflow:hidden;cursor:pointer;}
.nav-item:hover{background:rgba(255,255,255,.08);color:#fff;}
.nav-item.active{background:rgba(37,99,235,.3);color:#fff;font-weight:600;}
.nav-item.drag-over{background:rgba(255,255,255,.18);border:1px dashed rgba(255,255,255,.4);}
.nav-item.dragging{opacity:.4;}
.nav-icon{font-size:.95rem;width:20px;min-width:20px;text-align:center;}
.nav-drag{font-size:14px;color:rgba(255,255,255,.25);cursor:grab;padding-right:2px;user-select:none;transition:color .15s;}
.nav-item:hover .nav-drag{color:rgba(255,255,255,.5);}
.sidebar.collapsed .nav-drag{display:none;}
.sidebar-footer{padding:10px 6px;border-top:1px solid rgba(255,255,255,.08);}
.nav-item.logout:hover{background:rgba(220,38,38,.2);color:#fca5a5;}
.main-content{flex:1;overflow-y:auto;}

/* ── カード ── */
.card{background:#fff;border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);border:1px solid var(--border);}
.card-title{font-size:.88rem;font-weight:700;color:var(--navy);margin-bottom:16px;display:flex;align-items:center;gap:7px;}

/* ── 統計チップ ── */
.stat-chip{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;background:#fff;border:1px solid var(--border);border-radius:20px;box-shadow:var(--shadow);cursor:default;}
.stat-chip.staff-chip{cursor:pointer;transition:all .15s;}
.stat-chip.staff-chip:hover{border-color:var(--blue);background:var(--blue-l);}
.stat-num{font-size:.95rem;font-weight:700;color:var(--navy);}
.stat-label{font-size:.75rem;color:var(--gray);}

/* ── タブ ── */
.tab-bar{display:flex;gap:4px;flex-wrap:wrap;border-bottom:2px solid var(--border);margin-bottom:12px;padding-bottom:0;}
.tab-btn{padding:7px 16px;border:none;background:none;font-size:.82rem;font-weight:600;color:var(--gray);cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-2px;border-radius:6px 6px 0 0;transition:all .15s;font-family:inherit;}
.tab-btn:hover{color:var(--blue);background:#f8faff;}
.tab-btn.active{color:var(--blue);border-bottom-color:var(--blue);background:var(--blue-l);}

/* ── フィルターバー ── */
.filter-bar{display:flex;gap:8px;align-items:center;flex-wrap:wrap;background:#fff;padding:10px 12px;border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow);margin-bottom:8px;}
.filter-bar input[type="text"]{padding:6px 10px;font-size:.82rem;}
.filter-bar select{padding:6px 8px;font-size:.82rem;min-width:110px;}

/* ── テーブル ── */
.client-table{width:100%;border-collapse:collapse;font-size:.82rem;}
.client-table thead th{padding:9px 10px;text-align:left;font-weight:700;font-size:.75rem;color:#64748b;background:#f8fafc;border-bottom:1px solid var(--border);white-space:nowrap;cursor:pointer;user-select:none;letter-spacing:.3px;}
.client-table thead th:hover{background:#f0f4f8;color:var(--blue);}
.client-table tbody tr{border-bottom:1px solid #f1f5f9;transition:background .1s;}
.client-table tbody tr:hover td{background:rgba(37,99,235,.04)!important;}
.client-table td{padding:8px 10px;vertical-align:middle;}
.code-badge{background:#e2e8f0;color:#475569;border-radius:5px;padding:2px 7px;font-size:.75rem;font-weight:700;font-family:monospace;}
.eng-badge{border-radius:5px;padding:2px 8px;font-size:.75rem;font-weight:600;white-space:nowrap;}
.info-sub{font-size:.72rem;color:#94a3b8;display:block;margin-top:1px;}
.note-dot{color:#f59e0b;font-size:.6rem;margin-left:4px;cursor:help;}
.btn-icon-sm{background:none;border:none;cursor:pointer;font-size:.95rem;padding:3px 5px;border-radius:5px;opacity:.6;transition:all .15s;}
.btn-icon-sm:hover{opacity:1;background:#f1f5f9;}
.btn-icon-sm.btn-del:hover{background:#fef2f2;}

/* ── モーダル ── */
.modal-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:1000;align-items:center;justify-content:center;padding:20px;}
.modal-card{background:#fff;border-radius:14px;width:100%;max-width:640px;max-height:90vh;display:flex;flex-direction:column;box-shadow:0 20px 60px rgba(0,0,0,.2);}
.modal-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border);font-weight:700;font-size:.95rem;}
.modal-body{overflow-y:auto;padding:20px;}
.modal-footer{display:flex;justify-content:flex-end;gap:10px;padding:14px 20px;border-top:1px solid var(--border);}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;}

/* ── ドロップゾーン ── */
.dropzone{border:2px dashed var(--border);border-radius:10px;cursor:pointer;background:#f8fafc;min-height:120px;display:flex;align-items:center;justify-content:center;transition:all .2s;}
.dropzone:hover,.dropzone.dragover{border-color:var(--blue);background:var(--blue-l);}
.dropzone-inner{display:flex;flex-direction:column;align-items:center;gap:6px;padding:24px 20px;text-align:center;width:100%;}
.dropzone-icon{font-size:2rem;}
.dropzone-text{font-size:.88rem;font-weight:600;color:var(--navy);}
.dropzone-sub{font-size:.8rem;color:var(--gray);}

/* ── KPI ── */
.kpi-card{background:#fff;border-radius:var(--radius);padding:18px 20px;border:1px solid var(--border);box-shadow:var(--shadow);}
.kpi-card.kpi-blue{background:linear-gradient(135deg,#eff6ff,#dbeafe);}
.kpi-card.kpi-green{background:linear-gradient(135deg,#f0fdf4,#dcfce7);}
.kpi-card.kpi-gray{background:linear-gradient(135deg,#f8fafc,#f1f5f9);}
.kpi-num{font-size:2rem;font-weight:700;color:var(--navy);line-height:1;}
.kpi-label{font-size:.78rem;color:var(--gray);margin-top:4px;}