:root {
    --primary: #CC0000; /* Honda Red */
    --secondary: #003366; /* Deep Corporate Blue */
    --bg-gradient: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    --card-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(255, 255, 255, 0.4);
    --text-main: #2c3e50;
    --text-muted: #7f8c8d;
    --success: #27ae60;
    --warning: #f39c12;
    --shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
}

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

body {
    font-family: 'Inter', 'Noto Sans JP', sans-serif;
    background: var(--bg-gradient);
    background-attachment: fixed;
    color: var(--text-main);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navbar */
.navbar {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--secondary);
    letter-spacing: -0.5px;
}

.logo span {
    color: var(--primary);
    margin-left: 4px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-muted);
    margin-left: 2rem;
    font-weight: 600;
    transition: color 0.3s;
}

.nav-links a.active {
    color: var(--primary);
    border-bottom: 2px solid var(--primary);
}

/* Sections */
section {
    display: none;
    padding: 2rem 0;
    animation: fadeIn 0.5s ease-out;
}

section.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.section-header {
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.section-header h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--secondary);
}

.section-header p {
    color: var(--text-muted);
}

/* Cards */
.card {
    background: var(--card-bg);
    backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}

.premium-card {
    transition: transform 0.3s, box-shadow 0.3s;
}

.premium-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px 0 rgba(31, 38, 135, 0.2);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    text-align: center;
    background: var(--card-bg);
    border-radius: 16px;
    padding: 2rem;
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow);
}

.stat-card h4 {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.stat-card .value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--secondary);
}

/* Table */
.table-container {
    overflow-x: auto;
}

.premium-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card-bg);
    backdrop-filter: blur(8px);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.premium-table th, .premium-table td {
    padding: 1.25rem;
    text-align: left;
    border-bottom: 1px solid var(--glass-border);
}

.premium-table th {
    background: rgba(0, 51, 102, 0.05);
    color: var(--secondary);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1px;
}

.status-badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.status-成約 { background: #e3f2fd; color: #1976d2; }
.status-発注 { background: #fff3e0; color: #f57c00; }
.status-入庫 { background: #f3e5f5; color: #7b1fa2; }
.status-登録 { background: #e8f5e9; color: #2e7d32; }
.status-用品取付 { background: #fce4ec; color: #c2185b; }
.status-納車完了 { background: #e0f2f1; color: #00796b; }

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    border: none;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

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

.btn-primary:hover {
    background: #aa0000;
    transform: scale(1.05);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--primary);
    color: var(--primary);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    backdrop-filter: blur(4px);
}

.modal-content {
    background: white;
    margin: 10% auto;
    width: 400px;
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-50px); }
    to { opacity: 1; transform: translateY(0); }
}

.close {
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

input, select, textarea {
    width: 100%;
    padding: 0.75rem;
    border-radius: 8px;
    border: 1px solid #ddd;
    background: #f9f9f9;
}