body {
            font-family: 'Inter', sans-serif;
            background-color: #f4f6f9;
            color: #333333;
        }

        .izin-card {
            background: #ffffff;
            border-radius: 16px;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
            border: 1px solid #eaeaea;
            max-width: 680px;
            margin: 40px auto;
            padding: 0;
            overflow: hidden;
        }

        .nav-tabs {
            border-bottom: 1px solid #eaeaea;
            background-color: #ffffff;
            padding: 12px 24px 0 24px;
        }

        .nav-tabs .nav-link {
            border: none;
            color: #6b7280;
            font-weight: 500;
            font-size: 0.9rem;
            padding: 12px 16px;
            display: flex;
            align-items: center;
            gap: 8px;
            border-bottom: 2px solid transparent;
        }

        .nav-tabs .nav-link.active {
            color: #0b2a4a;
            border-bottom: 2px solid #0b2a4a;
            background: transparent;
            font-weight: 600;
        }

        .card-body-custom {
            padding: 28px 32px 32px 32px;
        }

        .izin-header {
            display: flex;
            align-items: center;
            gap: 16px;
            padding-bottom: 20px;
            margin-bottom: 24px;
        }

        .icon-box-blue {
            width: 44px;
            height: 44px;
            background-color: #e8f0fe;
            color: #1a73e8;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
        }

        .izin-header h5 {
            margin: 0;
            font-weight: 700;
            color: #1f2937;
            font-size: 1.1rem;
        }

        .subtitle {
            margin: 2px 0 0 0;
            color: #71717a;
            font-size: 0.85rem;
        }

        .form-label {
            font-size: 0.85rem;
            font-weight: 600;
            color: #374151;
            margin-bottom: 6px;
        }

        .required-star {
            color: #e53e3e;
        }

        .form-control, .form-select {
            border-radius: 8px;
            border: 1px solid #d1d5db;
            padding: 9px 12px;
            font-size: 0.9rem;
            color: #111827;
        }

        .form-control:focus, .form-select:focus {
            border-color: #0b2a4a;
            box-shadow: 0 0 0 3px rgba(11, 42, 74, 0.12);
        }

        .file-note {
            font-size: 0.78rem;
            color: #6b7280;
            margin-top: 6px;
        }

        .btn-submit-blue {
            background-color: #0b2a4a;
            color: #ffffff;
            border: none;
            border-radius: 8px;
            padding: 10px 22px;
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: background-color 0.2s ease;
        }

        .btn-submit-blue:hover {
            background-color: #06192d;
            color: #ffffff;
        }

        .footer-note {
            font-size: 0.82rem;
            color: #e53e3e;
            margin: 0;
        }