:root{--font-sans:"Noto Sans JP", sans-serif;--color-primary:#2563eb;--color-primary-hover:#1d4ed8;--color-primary-light:#eff6ff;--color-success:#22c55e;--color-success-text:#15803d;--color-error:#ef4444;--color-error-text:#dc2626;--color-bg:#f7f8fa;--color-surface:#fff;--color-border:#e2e5ea;--color-text-primary:#1a202c;--color-text-secondary:#4a5568;--color-text-tertiary:#6b7280;--color-text-muted:#8b919a;--color-gray-50:#f7f8fa;--color-gray-100:#f0f1f4;--color-gray-200:#e2e5ea;--color-gray-300:#cdd1d8;--color-gray-900:#1a202c;--shadow-xs:0 1px 2px #0000000a;--shadow-sm:0 1px 3px #0000000f;--shadow-md:0 2px 8px #00000014;--shadow-lg:0 4px 16px #0000001f;--radius-sm:.375rem;--radius-md:.5rem;--radius-lg:.75rem}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background:var(--color-bg);color:var(--color-text-primary);-webkit-font-smoothing:antialiased}.app-layout{min-height:100vh;display:flex}.left-nav{background:var(--color-gray-900);color:#fff;z-index:100;flex-direction:column;width:220px;padding:20px 0;display:flex;position:fixed;top:0;bottom:0;left:0;overflow-y:auto}.left-nav .hotel-name{border-bottom:1px solid #ffffff1a;margin-bottom:8px;padding:0 20px 20px;font-size:15px;font-weight:700}.left-nav .nav-item{color:#ffffffb3;border-left:3px solid #0000;padding:12px 20px;font-size:13px;font-weight:500;text-decoration:none;transition:all .15s;display:block}.left-nav .nav-item:hover{color:#fff;background:#ffffff0d}.left-nav .nav-item.active{color:#fff;border-left-color:var(--color-primary);background:#ffffff1a;font-weight:700}.left-nav .nav-label{text-transform:uppercase;letter-spacing:1px;color:#fff6;padding:16px 20px 8px;font-size:10px}.main-content{flex:1;max-width:1400px;margin-left:220px;padding:24px 32px}.page-header{justify-content:space-between;align-items:center;margin-bottom:24px;display:flex}.page-title{color:var(--color-text-primary);font-size:22px;font-weight:700}.month-badge{background:var(--color-primary);color:#fff;border-radius:var(--radius-md);padding:6px 20px;font-size:15px;font-weight:700}.kpi-grid{gap:12px;margin-bottom:28px;display:grid}.kpi-grid-6{grid-template-columns:repeat(6,1fr)}.kpi-grid-4{grid-template-columns:repeat(4,1fr)}.kpi-card{background:var(--color-surface);border-radius:var(--radius-lg);text-align:center;box-shadow:var(--shadow-xs);padding:16px}.kpi-card.border-red{border:2px solid var(--color-primary)}.kpi-card.border-green{border:2px solid var(--color-success)}.kpi-card .kpi-label{color:var(--color-text-tertiary);margin-bottom:6px;font-size:11px;font-weight:500}.kpi-card .kpi-value{color:var(--color-text-primary);font-size:22px;font-weight:700;line-height:1.2}.kpi-card .kpi-sub{margin-top:4px;font-size:11px;font-weight:500}.kpi-sub.positive{color:var(--color-success-text)}.kpi-sub.negative{color:var(--color-error-text)}.kpi-sub.neutral{color:var(--color-text-tertiary)}.section-header{margin:32px 0 16px}.section-title{color:var(--color-primary);margin:0;font-size:20px;font-weight:700}.section-subtitle{color:var(--color-primary);margin:4px 0 0;font-size:13px;font-weight:600}.chart-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-xs);padding:20px}.chart-card h3{color:var(--color-text-primary);margin:0 0 4px;font-size:15px;font-weight:600}.chart-card .chart-desc{color:var(--color-text-muted);margin:0 0 16px;font-size:11px}.chart-card .chart-bottom-desc{color:var(--color-text-muted);border-top:1px solid var(--color-gray-100);white-space:pre-line;margin:12px 0 0;padding-top:8px;font-size:11px}.grid-2{grid-template-columns:1fr 1fr;gap:16px;display:grid}.grid-3{grid-template-columns:1fr 1fr 1fr;gap:16px;display:grid}.grid-1{grid-template-columns:1fr;gap:16px;display:grid}.data-table{border-collapse:collapse;width:100%;font-size:12px}.data-table th{background:var(--color-gray-50);text-align:left;color:var(--color-text-tertiary);border-bottom:2px solid var(--color-border);padding:8px 12px;font-weight:600}.data-table td{border-bottom:1px solid var(--color-gray-100);padding:6px 12px}.data-table tr:hover{background:var(--color-gray-50)}.heatmap-cell{text-align:center;border-radius:var(--radius-sm);padding:4px 8px;font-size:11px;font-weight:600}.page-footer{border-top:1px solid var(--color-border);text-align:center;color:var(--color-text-muted);margin-top:40px;padding:16px 0;font-size:11px}@media (width<=1200px){.kpi-grid-6{grid-template-columns:repeat(3,1fr)}.grid-3{grid-template-columns:1fr 1fr}}@media (width<=768px){.left-nav{width:180px}.main-content{margin-left:180px;padding:16px}.kpi-grid-6,.kpi-grid-4{grid-template-columns:repeat(2,1fr)}.grid-2,.grid-3{grid-template-columns:1fr}}