:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-color: #1e293b;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --badge-in: #dcfce7;
    --badge-in-text: #15803d;
    --badge-out: #fee2e2;
    --badge-out-text: #b91c1c;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.5;
    padding: 2rem 1rem;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
}

header {
    margin-bottom: 2rem;
    text-align: center;
}

header h1 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.card {
    background-color: var(--card-bg);
    border-radius: 10px;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-color);
}

.card h2 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: #0f172a;
    border-left: 4px solid var(--primary-color);
    padding-left: 0.5rem;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

label {
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: var(--text-muted);
}

input, select {
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.95rem;
}

.btn {
    background-color: var(--primary-color);
    color: white;
    padding: 0.6rem 1.5rem;
    border-radius: 6px;
    border: none;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}

.btn:hover {
    background-color: var(--primary-hover);
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    margin-top: 1rem;
}

th, td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    background-color: #f1f5f9;
    color: #475569;
    font-weight: 600;
}

.badge {
    display: inline-block;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 700;
}

.badge-in {
    background-color: var(--badge-in);
    color: var(--badge-in-text);
}

.badge-out {
    background-color: var(--badge-out);
    color: var(--badge-out-text);
}

.text-right {
    text-align: right;
}

.status {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
}

.overflow-table {
    overflow-x: auto;
}

/* ダッシュボード・グラフ・KPI用スタイル */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.kpi-card {
    background: #f8fafc;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem 1.25rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.kpi-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.kpi-card.receipt {
    border-left: 4px solid #10b981;
}

.kpi-card.dispense {
    border-left: 4px solid #ef4444;
}

.kpi-card.balance {
    border-left: 4px solid var(--primary-color);
}

.kpi-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 600;
    margin-bottom: 0.35rem;
}

.kpi-value {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-color);
    line-height: 1.2;
}

.kpi-card.receipt .kpi-value {
    color: #059669;
}

.kpi-card.dispense .kpi-value {
    color: #dc2626;
}

.kpi-unit {
    font-size: 0.85rem;
    font-weight: normal;
    color: var(--text-muted);
    margin-left: 0.25rem;
}

.filter-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.filter-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
}

.filter-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.filter-btn {
    background-color: white;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 0.35rem 0.85rem;
    border-radius: 9999px;
    font-size: 0.825rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.filter-btn:hover {
    background-color: #f1f5f9;
    border-color: #cbd5e1;
}

.filter-btn.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    font-weight: 600;
    box-shadow: 0 1px 3px rgba(37, 99, 235, 0.3);
}

.chart-container {
    position: relative;
    width: 100%;
    height: 340px;
}