:root {
    --color-corporate: #3CB314;
    --color-corporate-dark: #2E8A0F;
    --color-text: #4B4B4B;
    --color-text-sub: #6b6b6b;
    --color-bg: #f4f6f8;
    --color-border: #ccc;
    --color-border-light: #e5e5e5;
    --shadow-card: 0 1px 4px rgba(0,0,0,0.06);
}
body {
    background: var(--color-bg);
    font-family: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', 'Meiryo', sans-serif;
    font-size: 1rem;
    color: var(--color-text);
    line-height: 1.8;
}
.navbar-custom {
    background: #fff;
    border-bottom: 3px solid var(--color-corporate);
    box-shadow: var(--shadow-card);
}
.navbar-brand {
    font-size: 1.2rem;
    letter-spacing: 0.05em;
    color: var(--color-corporate) !important;
}
.card {
    border: none;
    border-radius: 10px;
    box-shadow: var(--shadow-card);
    border-top: 3px solid var(--color-corporate);
}
.form-label {
    font-size: 0.95rem;
    color: var(--color-text-sub);
    font-weight: 500;
}
.form-control {
    font-size: 1rem;
    border-radius: 6px;
}
.form-control:focus {
    border-color: var(--color-corporate);
    box-shadow: 0 0 0 0.2rem rgba(60, 179, 20, 0.15);
}